Tag Archives: machine coil

China manufacturer China 1-3mm Hot Rolled Coil Cut to Length Line Steel Coil Cutting Machine Cut to Length Line near me manufacturer

Product Description

             china 1-3mm hot rolled coil cut to length line steel coil cutting machine cut to length line

 

Customer requirements:

1.Galvanized steel thickness:0.25-3mm

2.Material width:1250mm

  3.Machine’s color:Green

 

Material:GI, PPGI and others. But if you want to cutting stainless steel, please tell us and then we will change the cutting blade material for
your reference.

 

WORK FLOW

DECOILER—FEEDING—LEVELING—SHEARING— CONVEYOR BELT— AUTOMATIC STACKER TABLE

 

Item Name Unit Quantity
1 5 tons hydraulic decoiler with loading car set 1
2 Leveling and cutting machine set 1
3 Conveyor set 1
4 Control system set 1
5 Hydraulic station set 1
6 4m auto stacker set 1

 

 

1. 5 tons hydraulic decoiler with car and upender

Coil loading car: (Regarding the loading car, the min height that can be lowered is 540mm, and the max

height is 925mm. If you have special requirements, please let us know in advance.)

1) The car can move levelly and vertically, which is convenient for putting the steel coils into the de-coiler.

2) It is driven vertically by hydraulic cylinder with 4 CZPT pillars

3) The level movement is driven by motor

4) Driving motor power: 0.75 kw, max capacity is 5 Ton. Function: It is used to lift up and down, move forward and back to make it easy to
load the coils on decoiler. Hydraulic controls lifting, motor drives moving. The car

is controlled on the auxiliary control panel. Its moving speed is 6-7 m/min. When coils on decoiler, car will

return back to the start position. It can also carry back the unfinished coils from decoiler.

 

Auto decoiler:

1) Supporting the coils and doing uncoiling. The capacity is 5 Tons(max). Equipped with the brake system

2) It adopts the hydraulic oil cylinder to make the decoiler expandable and fit to the inner diameter of coils. It is equipped with the cantilever.

3) Motor drive the coils running and can do forward and reverse running as well as do the decoiling with tension. Max coil width: 1250 mm

Feeding speed: 0-40 m/min (adjustable)

Driving motor power: 5.5 kw

Hydraulic motor power: 5.5 kw

4) Structure: welding by the steel plates and profiled bar. Inner diameter 550-650mm (Remarks: The adjustment range of the max inner diameter
and the min inner diameter is within 100mm, and the adjustable range can be increased through the gasket.)

Part 2: Leveling and cutting 
 Feeding width Adjustable,max 1250mm
 Shaft material 45 # steel with tempered
 Shaft diameter 70mm
 Leveling roller 13 rollers,up 5 down 6 with 1 pair of feeding roller
 Leveling type 4-HI level,the precision is higher than normal one
 Motor power 7.5kw
 Speed About 0-20m/min,speed is adjustable
 Roller space adjustment Automatically adjusted by motor
 Cutting type Hydraulic cutting
 Cutting blade material Cr 12 with quenched treatment
 Cutting length Adjustable,controlled by PLC

 

Part3: Control systerm
 Control system  PLC
 PLC Brand  Siemens
 Screen  Siemens touch screen
 Encoder  Omron
 Converter  Delta from ZheJiang
 Function  Control the speed,cutting length and quantity
 Remote control With the remote control for easier operation.

Part 4: Automatic Conveyor belt

Part 5, Automatic Stacker

 

Max Length of the sheet :4000mm

Max Width of the sheet : 1250mm

Table is moveable with the wheels and have lock

Table capacity: 1000 kgs

Company Profile


FAQ:

1.How to get a quotation of coil slitting line?

If you want to order this machine, kindly contact me by Email or Phone, please tell us your requiremnts,

1.material of the coil:

2.thickness of the coil:

3.width of the coil:

4.Maximum coil weight:

5.maxium slitting strips quantity:

6.the minimum width of the slitting strip:

7.the maxmum width of the slitting strip:

8.Speed :

Then we can offer you the most proper solution for your machine and will send you quotations with specifications and price.

2. Terms of payment:
30% T/T, Balance to be paid before shipping after inspection. We also accept the payment L/C, O/A , D/P.

3. What is your after-sale service?
coil slitting line warranty period is 24 months,if the broken parts can’t be repaired,we can send new to replace for free,but you need to pay the express cost.we supply the technical support for the whole life of the equipment.

4. How to visit your company?

Kindly tell us your visting time, we can pick up you AT the stations. and help you check the airport ticket and train ticket.

Our city is near ZheJiang , it is about 54 minutes by high speed train, it is short time and convenient for you to by train to our city from ZheJiang , so we suggest you come by high speed train.

 

Screw Shaft Types and Uses

Various uses for the screw shaft are numerous. Its major diameter is the most significant characteristic, while other aspects include material and function are important. Let us explore these topics in more detail. There are many different types of screw shafts, which include bronze, brass, titanium, and stainless steel. Read on to learn about the most common types. Listed below are some of the most common uses for a screw shaft. These include: C-clamps, screw jacks, vises, and more.
screwshaft

Major diameter of a screw shaft

A screw’s major diameter is measured in fractions of an inch. This measurement is commonly found on the screw label. A screw with a major diameter less than 1/4″ is labeled #0 to #14; those with a larger diameter are labeled fractions of an inch in a corresponding decimal scale. The length of a screw, also known as the shaft, is another measure used for the screw.
The major diameter of a screw shaft is the greater of its 2 outer diameters. When determining the major diameter of a screw, use a caliper, micrometer, or steel rule to make an accurate measurement. Generally, the first number in the thread designation refers to the major diameter. Therefore, if a screw has a thread of 1/2-10 Acme, the major diameter of the thread is.500 inches. The major diameter of the screw shaft will be smaller or larger than the original diameter, so it’s a good idea to measure the section of the screw that’s least used.
Another important measurement is the pitch. This measures the distance between 1 thread’s tip and the next thread’s corresponding point. Pitch is an important measurement because it refers to the distance a screw will advance in 1 turn. While lead and pitch are 2 separate concepts, they are often used interchangeably. As such, it’s important to know how to use them properly. This will make it easier to understand how to select the correct screw.
There are 3 different types of threads. The UTS and ISO metric threads are similar, but their common values for Dmaj and Pmaj are different. A screw’s major diameter is the largest diameter, while the minor diameter is the lowest. A nut’s major diameter, or the minor diameter, is also called the nut’s inside diameter. A bolt’s major diameter and minor diameter are measured with go/no-go gauges or by using an optical comparator.
The British Association and American Society of Mechanical Engineers standardized screw threads in the 1840s. A standard named “British Standard Whitworth” became a common standard for screw threads in the United States through the 1860s. In 1864, William Sellers proposed a new standard that simplified the Whitworth thread and had a 55 degree angle at the tip. Both standards were widely accepted. The major diameter of a screw shaft can vary from 1 manufacturer to another, so it’s important to know what size screw you’re looking for.
In addition to the thread angle, a screw’s major diameter determines the features it has and how it should be used. A screw’s point, or “thread”, is usually spiky and used to drill into an object. A flat tipped screw, on the other hand, is flat and requires a pre-drilled hole for installation. Finally, the diameter of a screw bolt is determined by the major and minor diameters.
screwshaft

Material of a screw shaft

A screw shaft is a piece of machine equipment used to move raw materials. The screw shaft typically comprises a raw material w. For a particular screw to function correctly, the raw material must be sized properly. In general, screw shafts should have an axial-direction length L equal to the moving amount k per 1/2 rotation of the screw. The screw shaft must also have a proper contact angle ph1 in order to prevent raw material from penetrating the screw shaft.
The material used for the shaft depends on its application. A screw with a ball bearing will work better with a steel shaft than 1 made of aluminum. Aluminum screw shafts are the most commonly used for this application. Other materials include titanium. Some manufacturers also prefer stainless steel. However, if you want a screw with a more modern appearance, a titanium shaft is the way to go. In addition to that, screws with a chromium finish have better wear resistance.
The material of a screw shaft is important for a variety of applications. It needs to have high precision threads and ridges to perform its function. Manufacturers often use high-precision CNC machines and lathes to create screw shafts. Different screw shafts can have varying sizes and shapes, and each 1 will have different applications. Listed below are the different materials used for screw shafts. If you’re looking for a high-quality screw shaft, you should shop around.
A lead screw has an inverse relationship between contact surface pressure and sliding velocity. For heavier axial loads, a reduced rotation speed is needed. This curve will vary depending on the material used for the screw shaft and its lubrication conditions. Another important factor is end fixity. The material of a screw shaft can be either fixed or free, so make sure to consider this factor when choosing the material of your screw. The latter can also influence the critical speed and rigidity of the screw.
A screw shaft’s major diameter is the distance between the outer edge of the thread and the inner smooth part. Screw shafts are typically between 2 and 16 millimeters in diameter. They feature a cylindrical shape, a pointy tip, and a wider head and drive than the former. There are 2 basic types of screw heads: threaded and non-threaded. These have different properties and purposes.
Lead screws are a cost-effective alternative to ball screws, and are used for low power and light to medium-duty applications. They offer some advantages, but are not recommended for continuous power transmission. But lead screws are often quieter and smaller, which make them useful for many applications. Besides, they are often used in a kinematic pair with a nut object. They are also used to position objects.
screwshaft

Function of a screw shaft

When choosing a screw for a linear motion system, there are many factors that should be considered, such as the position of the actuator and the screw and nut selection. Other considerations include the overall length of travel, the fastest move profile, the duty cycle, and the repeatability of the system. As a result, screw technology plays a critical role in the overall performance of a system. Here are the key factors to consider when choosing a screw.
Screws are designed with an external threading that digs out material from a surface or object. Not all screw shafts have complete threading, however. These are known as partially threaded screws. Fully threaded screws feature complete external threading on the shaft and a pointed tip. In addition to their use as fasteners, they can be used to secure and tighten many different types of objects and appliances.
Another factor to consider is axial force. The higher the force, the bigger the screw needs to be. Moreover, screws are similar to columns that are subject to both tension and compression loads. During the compression load, bowing or deflection is not desirable, so the integrity of the screw is important. So, consider the design considerations of your screw shaft and choose accordingly. You can also increase the torque by using different shaft sizes.
Shaft collars are also an important consideration. These are used to secure and position components on the shaft. They also act as stroke limiters and to retain sprocket hubs, bearings, and shaft protectors. They are available in several different styles. In addition to single and double split shaft collars, they can be threaded or set screw. To ensure that a screw collar will fit tightly to the shaft, the cap must not be overtightened.
Screws can be cylindrical or conical and vary in length and diameter. They feature a thread that mates with a complementary helix in the material being screwed into. A self-tapping screw will create a complementary helix during driving, creating a complementary helix that allows the screw to work with the material. A screw head is also an essential part of a screw, providing gripping power and compression to the screw.
A screw’s pitch and lead are also important parameters to consider. The pitch of the screw is the distance between the crests of the threads, which increases mechanical advantage. If the pitch is too small, vibrations will occur. If the pitch is too small, the screw may cause excessive wear and tear on the machine and void its intended purpose. The screw will be useless if it can’t be adjusted. And if it can’t fit a shaft with the required diameter, then it isn’t a good choice.
Despite being the most common type, there are various types of screws that differ in their functions. For example, a machine screw has a round head, while a truss head has a lower-profile dome. An oval-its point screw is a good choice for situations where the screw needs to be adjusted frequently. Another type is a soft nylon tip, which looks like a Half-dog point. It is used to grip textured or curved surfaces.

China manufacturer China 1-3mm Hot Rolled Coil Cut to Length Line Steel Coil Cutting Machine Cut to Length Line   near me manufacturer China manufacturer China 1-3mm Hot Rolled Coil Cut to Length Line Steel Coil Cutting Machine Cut to Length Line   near me manufacturer

China Professional Good Quality Hydraulic Decoiling and Feeding Machine with or Without Coil Car near me supplier

Product Description

Good quality Hydraulic decoiling and feeding machine with or without coil car

Decoiler –Automatic Hydraulic Decoiling And Feeding Machine:
The decoiler can handle the coil and be capable of feeding the roll into the

Slitting line, and also rewinding partially consumed rolls, so they can be restrapped whilst still on the mandrel, before returning to Coil Storage Facility

3 If you want to learn more about the product please login our website or contract to us

hydraulic Pump Station : 3KW
Bearing weight:   10T
feeding roller’s width:   1350mm
Out line dimension of machine:  2*5*2.5m
Total weight: 4.8T

For use at a later date.

Line composition:
Entry coil car – Uncoiler – Loop bridge – Side guider – Slitter head – Scrap winder – Loop bridge – Tension station – Recoiler – Exit coil car
Hydraulic system
Electrical system
Technical parameters:
Material: Cold rolled, hot rolled carbon steel, stainless steel, galvanized steel, silicon steel coil, p/o coil, aluminium coil
Width: Up to 2000mm
Thickness: 0.2-2.0mm, 0.3-3.0mm, 1.0-6.0mm, 2.0-12.0mm
Max. Coil weight: 35 tons max
Coil I. D.: 508mm/610mm/760mm
Coil O. D.: 2000mm max
Arbor diameter: 150mm/180mm/220mm
Drive: 380V/50Hz/3PH
Decoiling mode: Over/Under
Direction: According to requirement
Line speed: Up to 120 m/min
Max. Number of slits: 2-30 cuts
Narrowest strip width slit into: 10-25mm
Width cutting accuracy: ± 0.05mm(strip thickness≤ 1), ± 0.1mm(strip thickness>1.5mm)
Slitting burr: 5% of the thickness of material

Installation and training:

A. If buyers visit our factory and check the machine, we will teach you how to install and use the machine, and also train your workers/technician face to face.
B. Without visiting, we will send you user manual and video to teach you to install and operate.
C. If buyer needs our technician to go to your local factory, please arrange board and lodging and other necessary things

Our Services:

1. Customers` Design, Size, Color&Logo are accepted.
2. With15years professional manufacture experience
3. Prompt Delivery&Competitive Price
4. Main markets: Middle East, Europe, North America, Africa, Southeast Asia.

After-sales service:
1. We provide the technical support for whole life of our machines.
2. If buyers need the technician to go abroad, we will arrange the technician,
But the buyers should take all the cost, including visa, roundtripticket etc.

REMARKS:

1 The machine can according to your requirement to set the color

2 Within in 1 year if any parts go broken we will send new ones to replace for free

 

How to Calculate the Diameter of a Worm Gear

worm shaft
In this article, we will discuss the characteristics of the Duplex, Single-throated, and Undercut worm gears and the analysis of worm shaft deflection. Besides that, we will explore how the diameter of a worm gear is calculated. If you have any doubt about the function of a worm gear, you can refer to the table below. Also, keep in mind that a worm gear has several important parameters which determine its working.

Duplex worm gear

A duplex worm gear set is distinguished by its ability to maintain precise angles and high gear ratios. The backlash of the gearing can be readjusted several times. The axial position of the worm shaft can be determined by adjusting screws on the housing cover. This feature allows for low backlash engagement of the worm tooth pitch with the worm gear. This feature is especially beneficial when backlash is a critical factor when selecting gears.
The standard worm gear shaft requires less lubrication than its dual counterpart. Worm gears are difficult to lubricate because they are sliding rather than rotating. They also have fewer moving parts and fewer points of failure. The disadvantage of a worm gear is that you cannot reverse the direction of power due to friction between the worm and the wheel. Because of this, they are best used in machines that operate at low speeds.
Worm wheels have teeth that form a helix. This helix produces axial thrust forces, depending on the hand of the helix and the direction of rotation. To handle these forces, the worms should be mounted securely using dowel pins, step shafts, and dowel pins. To prevent the worm from shifting, the worm wheel axis must be aligned with the center of the worm wheel’s face width.
The backlash of the CZPT duplex worm gear is adjustable. By shifting the worm axially, the section of the worm with the desired tooth thickness is in contact with the wheel. As a result, the backlash is adjustable. Worm gears are an excellent choice for rotary tables, high-precision reversing applications, and ultra-low-backlash gearboxes. Axial shift backlash is a major advantage of duplex worm gears, and this feature translates into a simple and fast assembly process.
When choosing a gear set, the size and lubrication process will be crucial. If you’re not careful, you might end up with a damaged gear or 1 with improper backlash. Luckily, there are some simple ways to maintain the proper tooth contact and backlash of your worm gears, ensuring long-term reliability and performance. As with any gear set, proper lubrication will ensure your worm gears last for years to come.
worm shaft

Single-throated worm gear

Worm gears mesh by sliding and rolling motions, but sliding contact dominates at high reduction ratios. Worm gears’ efficiency is limited by the friction and heat generated during sliding, so lubrication is necessary to maintain optimal efficiency. The worm and gear are usually made of dissimilar metals, such as phosphor-bronze or hardened steel. MC nylon, a synthetic engineering plastic, is often used for the shaft.
Worm gears are highly efficient in transmission of power and are adaptable to various types of machinery and devices. Their low output speed and high torque make them a popular choice for power transmission. A single-throated worm gear is easy to assemble and lock. A double-throated worm gear requires 2 shafts, 1 for each worm gear. Both styles are efficient in high-torque applications.
Worm gears are widely used in power transmission applications because of their low speed and compact design. A numerical model was developed to calculate the quasi-static load sharing between gears and mating surfaces. The influence coefficient method allows fast computing of the deformation of the gear surface and local contact of the mating surfaces. The resultant analysis shows that a single-throated worm gear can reduce the amount of energy required to drive an electric motor.
In addition to the wear caused by friction, a worm wheel can experience additional wear. Because the worm wheel is softer than the worm, most of the wear occurs on the wheel. In fact, the number of teeth on a worm wheel should not match its thread count. A single-throated worm gear shaft can increase the efficiency of a machine by as much as 35%. In addition, it can lower the cost of running.
A worm gear is used when the diametrical pitch of the worm wheel and worm gear are the same. If the diametrical pitch of both gears is the same, the 2 worms will mesh properly. In addition, the worm wheel and worm will be attached to each other with a set screw. This screw is inserted into the hub and then secured with a locknut.

Undercut worm gear

Undercut worm gears have a cylindrical shaft, and their teeth are shaped in an evolution-like pattern. Worms are made of a hardened cemented metal, 16MnCr5. The number of gear teeth is determined by the pressure angle at the zero gearing correction. The teeth are convex in normal and centre-line sections. The diameter of the worm is determined by the worm’s tangential profile, d1. Undercut worm gears are used when the number of teeth in the cylinder is large, and when the shaft is rigid enough to resist excessive load.
The center-line distance of the worm gears is the distance from the worm centre to the outer diameter. This distance affects the worm’s deflection and its safety. Enter a specific value for the bearing distance. Then, the software proposes a range of suitable solutions based on the number of teeth and the module. The table of solutions contains various options, and the selected variant is transferred to the main calculation.
A pressure-angle-angle-compensated worm can be manufactured using single-pointed lathe tools or end mills. The worm’s diameter and depth are influenced by the cutter used. In addition, the diameter of the grinding wheel determines the profile of the worm. If the worm is cut too deep, it will result in undercutting. Despite the undercutting risk, the design of worm gearing is flexible and allows considerable freedom.
The reduction ratio of a worm gear is massive. With only a little effort, the worm gear can significantly reduce speed and torque. In contrast, conventional gear sets need to make multiple reductions to get the same reduction level. Worm gears also have several disadvantages. Worm gears can’t reverse the direction of power because the friction between the worm and the wheel makes this impossible. The worm gear can’t reverse the direction of power, but the worm moves from 1 direction to another.
The process of undercutting is closely related to the profile of the worm. The worm’s profile will vary depending on the worm diameter, lead angle, and grinding wheel diameter. The worm’s profile will change if the generating process has removed material from the tooth base. A small undercut reduces tooth strength and reduces contact. For smaller gears, a minimum of 14-1/2degPA gears should be used.
worm shaft

Analysis of worm shaft deflection

To analyze the worm shaft deflection, we first derived its maximum deflection value. The deflection is calculated using the Euler-Bernoulli method and Timoshenko shear deformation. Then, we calculated the moment of inertia and the area of the transverse section using CAD software. In our analysis, we used the results of the test to compare the resulting parameters with the theoretical ones.
We can use the resulting centre-line distance and worm gear tooth profiles to calculate the required worm deflection. Using these values, we can use the worm gear deflection analysis to ensure the correct bearing size and worm gear teeth. Once we have these values, we can transfer them to the main calculation. Then, we can calculate the worm deflection and its safety. Then, we enter the values into the appropriate tables, and the resulting solutions are automatically transferred into the main calculation. However, we have to keep in mind that the deflection value will not be considered safe if it is larger than the worm gear’s outer diameter.
We use a four-stage process for investigating worm shaft deflection. We first apply the finite element method to compute the deflection and compare the simulation results with the experimentally tested worm shafts. Finally, we perform parameter studies with 15 worm gear toothings without considering the shaft geometry. This step is the first of 4 stages of the investigation. Once we have calculated the deflection, we can use the simulation results to determine the parameters needed to optimize the design.
Using a calculation system to calculate worm shaft deflection, we can determine the efficiency of worm gears. There are several parameters to optimize gearing efficiency, including material and geometry, and lubricant. In addition, we can reduce the bearing losses, which are caused by bearing failures. We can also identify the supporting method for the worm shafts in the options menu. The theoretical section provides further information.

China Professional Good Quality Hydraulic Decoiling and Feeding Machine with or Without Coil Car   near me supplier China Professional Good Quality Hydraulic Decoiling and Feeding Machine with or Without Coil Car   near me supplier

China factory Aluminum Steel Cut to Length Line Coil Leveling Cutting to Length Machine near me factory

Product Description

           Decoiler+Leveling+Cutting+Conveyor+Stacker Machine

 

Customer requirements:

1.Galvanized steel thickness:0.25-3mm

2.Material width:1250mm

  3.Machine’s color:Green

 

Material:GI, PPGI and others. But if you want to cutting stainless steel, please tell us and then we will change the cutting blade material for
your reference.

 

WORK FLOW

DECOILER—FEEDING—LEVELING—SHEARING— CONVEYOR BELT— AUTOMATIC STACKER TABLE

 

Item Name Unit Quantity
1 5 tons hydraulic decoiler with loading car set 1
2 Leveling and cutting machine set 1
3 Conveyor set 1
4 Control system set 1
5 Hydraulic station set 1
6 4m auto stacker set 1

 

 

1. 5 tons hydraulic decoiler with car and upender

Coil loading car: (Regarding the loading car, the min height that can be lowered is 540mm, and the max

height is 925mm. If you have special requirements, please let us know in advance.)

1) The car can move levelly and vertically, which is convenient for putting the steel coils into the de-coiler.

2) It is driven vertically by hydraulic cylinder with 4 CZPT pillars

3) The level movement is driven by motor

4) Driving motor power: 0.75 kw, max capacity is 5 Ton. Function: It is used to lift up and down, move forward and back to make it easy to
load the coils on decoiler. Hydraulic controls lifting, motor drives moving. The car

is controlled on the auxiliary control panel. Its moving speed is 6-7 m/min. When coils on decoiler, car will

return back to the start position. It can also carry back the unfinished coils from decoiler.

 

Auto decoiler:

1) Supporting the coils and doing uncoiling. The capacity is 5 Tons(max). Equipped with the brake system

2) It adopts the hydraulic oil cylinder to make the decoiler expandable and fit to the inner diameter of coils. It is equipped with the cantilever.

3) Motor drive the coils running and can do forward and reverse running as well as do the decoiling with tension. Max coil width: 1250 mm

Feeding speed: 0-40 m/min (adjustable)

Driving motor power: 5.5 kw

Hydraulic motor power: 5.5 kw

4) Structure: welding by the steel plates and profiled bar. Inner diameter 550-650mm (Remarks: The adjustment range of the max inner diameter
and the min inner diameter is within 100mm, and the adjustable range can be increased through the gasket.)

Part 2: Leveling and cutting 
 Feeding width Adjustable,max 1250mm
 Shaft material 45 # steel with tempered
 Shaft diameter 70mm
 Leveling roller 13 rollers,up 5 down 6 with 1 pair of feeding roller
 Leveling type 4-HI level,the precision is higher than normal one
 Motor power 7.5kw
 Speed About 0-20m/min,speed is adjustable
 Roller space adjustment Automatically adjusted by motor
 Cutting type Hydraulic cutting
 Cutting blade material Cr 12 with quenched treatment
 Cutting length Adjustable,controlled by PLC

 

Part3: Control systerm
 Control system  PLC
 PLC Brand  Siemens
 Screen  Siemens touch screen
 Encoder  Omron
 Converter  Delta from ZheJiang
 Function  Control the speed,cutting length and quantity
 Remote control With the remote control for easier operation.

Part 4: Automatic Conveyor belt

Part 5, Automatic Stacker

 

Max Length of the sheet :4000mm

Max Width of the sheet : 1250mm

Table is moveable with the wheels and have lock

Table capacity: 1000 kgs

Company Profile


FAQ:

1.How to get a quotation of coil slitting line?

If you want to order this machine, kindly contact me by Email or Phone, please tell us your requiremnts,

1.material of the coil:

2.thickness of the coil:

3.width of the coil:

4.Maximum coil weight:

5.maxium slitting strips quantity:

6.the minimum width of the slitting strip:

7.the maxmum width of the slitting strip:

8.Speed :

Then we can offer you the most proper solution for your machine and will send you quotations with specifications and price.

2. Terms of payment:
30% T/T, Balance to be paid before shipping after inspection. We also accept the payment L/C, O/A , D/P.

3. What is your after-sale service?
coil slitting line warranty period is 24 months,if the broken parts can’t be repaired,we can send new to replace for free,but you need to pay the express cost.we supply the technical support for the whole life of the equipment.

4. How to visit your company?

Kindly tell us your visting time, we can pick up you AT the stations. and help you check the airport ticket and train ticket.

Our city is near ZheJiang , it is about 54 minutes by high speed train, it is short time and convenient for you to by train to our city from ZheJiang , so we suggest you come by high speed train.

Worm Gear Motors

Worm gear motors are often preferred for quieter operation because of the smooth sliding motion of the worm shaft. Unlike gear motors with teeth, which may click as the worm turns, worm gear motors can be installed in a quiet area. In this article, we will talk about the CZPT whirling process and the various types of worms available. We’ll also discuss the benefits of worm gear motors and worm wheel.
worm shaft

worm gear

In the case of a worm gear, the axial pitch of the ring pinion of the corresponding revolving worm is equal to the circular pitch of the mating revolving pinion of the worm gear. A worm with 1 start is known as a worm with a lead. This leads to a smaller worm wheel. Worms can work in tight spaces because of their small profile.
Generally, a worm gear has high efficiency, but there are a few disadvantages. Worm gears are not recommended for high-heat applications because of their high level of rubbing. A full-fluid lubricant film and the low wear level of the gear reduce friction and wear. Worm gears also have a lower wear rate than a standard gear. The worm shaft and worm gear is also more efficient than a standard gear.
The worm gear shaft is cradled within a self-aligning bearing block that is attached to the gearbox casing. The eccentric housing has radial bearings on both ends, enabling it to engage with the worm gear wheel. The drive is transferred to the worm gear shaft through bevel gears 13A, 1 fixed at the ends of the worm gear shaft and the other in the center of the cross-shaft.

worm wheel

In a worm gearbox, the pinion or worm gear is centered between a geared cylinder and a worm shaft. The worm gear shaft is supported at either end by a radial thrust bearing. A gearbox’s cross-shaft is fixed to a suitable drive means and pivotally attached to the worm wheel. The input drive is transferred to the worm gear shaft 10 through bevel gears 13A, 1 of which is fixed to the end of the worm gear shaft and the other at the centre of the cross-shaft.
Worms and worm wheels are available in several materials. The worm wheel is made of bronze alloy, aluminum, or steel. Aluminum bronze worm wheels are a good choice for high-speed applications. Cast iron worm wheels are cheap and suitable for light loads. MC nylon worm wheels are highly wear-resistant and machinable. Aluminum bronze worm wheels are available and are good for applications with severe wear conditions.
When designing a worm wheel, it is vital to determine the correct lubricant for the worm shaft and a corresponding worm wheel. A suitable lubricant should have a kinematic viscosity of 300 mm2/s and be used for worm wheel sleeve bearings. The worm wheel and worm shaft should be properly lubricated to ensure their longevity.

Multi-start worms

A multi-start worm gear screw jack combines the benefits of multiple starts with linear output speeds. The multi-start worm shaft reduces the effects of single start worms and large ratio gears. Both types of worm gears have a reversible worm that can be reversed or stopped by hand, depending on the application. The worm gear’s self-locking ability depends on the lead angle, pressure angle, and friction coefficient.
A single-start worm has a single thread running the length of its shaft. The worm advances 1 tooth per revolution. A multi-start worm has multiple threads in each of its threads. The gear reduction on a multi-start worm is equal to the number of teeth on the gear minus the number of starts on the worm shaft. In general, a multi-start worm has 2 or 3 threads.
Worm gears can be quieter than other types of gears because the worm shaft glides rather than clicking. This makes them an excellent choice for applications where noise is a concern. Worm gears can be made of softer material, making them more noise-tolerant. In addition, they can withstand shock loads. Compared to gears with toothed teeth, worm gears have a lower noise and vibration rate.
worm shaft

CZPT whirling process

The CZPT whirling process for worm shafts raises the bar for precision gear machining in small to medium production volumes. The CZPT whirling process reduces thread rolling, increases worm quality, and offers reduced cycle times. The CZPT LWN-90 whirling machine features a steel bed, programmable force tailstock, and five-axis interpolation for increased accuracy and quality.
Its 4,000-rpm, 5-kW whirling spindle produces worms and various types of screws. Its outer diameters are up to 2.5 inches, while its length is up to 20 inches. Its dry-cutting process uses a vortex tube to deliver chilled compressed air to the cutting point. Oil is also added to the mixture. The worm shafts produced are free of undercuts, reducing the amount of machining required.
Induction hardening is a process that takes advantage of the whirling process. The induction hardening process utilizes alternating current (AC) to cause eddy currents in metallic objects. The higher the frequency, the higher the surface temperature. The electrical frequency is monitored through sensors to prevent overheating. Induction heating is programmable so that only certain parts of the worm shaft will harden.

Common tangent at an arbitrary point on both surfaces of the worm wheel

A worm gear consists of 2 helical segments with a helix angle equal to 90 degrees. This shape allows the worm to rotate with more than 1 tooth per rotation. A worm’s helix angle is usually close to 90 degrees and the body length is fairly long in the axial direction. A worm gear with a lead angle g has similar properties as a screw gear with a helix angle of 90 degrees.
The axial cross section of a worm gear is not conventionally trapezoidal. Instead, the linear part of the oblique side is replaced by cycloid curves. These curves have a common tangent near the pitch line. The worm wheel is then formed by gear cutting, resulting in a gear with 2 meshing surfaces. This worm gear can rotate at high speeds and still operate quietly.
A worm wheel with a cycloid pitch is a more efficient worm gear. It reduces friction between the worm and the gear, resulting in greater durability, improved operating efficiency, and reduced noise. This pitch line also helps the worm wheel engage more evenly and smoothly. Moreover, it prevents interference with their appearance. It also makes worm wheel and gear engagement smoother.
worm shaft

Calculation of worm shaft deflection

There are several methods for calculating worm shaft deflection, and each method has its own set of disadvantages. These commonly used methods provide good approximations but are inadequate for determining the actual worm shaft deflection. For example, these methods do not account for the geometric modifications to the worm, such as its helical winding of teeth. Furthermore, they overestimate the stiffening effect of the gearing. Hence, efficient thin worm shaft designs require other approaches.
Fortunately, several methods exist to determine the maximum worm shaft deflection. These methods use the finite element method, and include boundary conditions and parameter calculations. Here, we look at a couple of methods. The first method, DIN 3996, calculates the maximum worm shaft deflection based on the test results, while the second one, AGMA 6022, uses the root diameter of the worm as the equivalent bending diameter.
The second method focuses on the basic parameters of worm gearing. We’ll take a closer look at each. We’ll examine worm gearing teeth and the geometric factors that influence them. Commonly, the range of worm gearing teeth is 1 to four, but it can be as large as twelve. Choosing the teeth should depend on optimization requirements, including efficiency and weight. For example, if a worm gearing needs to be smaller than the previous model, then a small number of teeth will suffice.

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