Screw Nail Making Machine Line

Screw Nail Making Machine

1.Wire preparation: Select appropriate wire materials—such as carbon steel, stainless steel, or alloy steel—based on product requirements. Wires with varying chemical and mechanical properties are placed on a wire-laying device for continuous production.
2.Wire drawing: The wire is drawn through a machine to achieve the required diameter, ensuring precise size and good surface quality. Lubricants are used to reduce friction, improve finish, and prevent mold wear.
3.Cold heading: The drawn wire is fed into a cold heading machine, which cuts and shapes it into the screw’s head and rod using a die. This process allows for various head shapes, such as round, flat, countersunk, and hex socket.
4.Thread rolling: For threaded screws, threads are formed after cold heading by extruding them onto the screw blank. This is done using either two thread rolling plates or two to three rotating thread rolling wheels.
5.Heat treatment: To enhance strength, hardness, and toughness, screws undergo heat treatment such as quenching and tempering. Quenching increases hardness and strength, while tempering relieves stress and improves toughness and stability to meet performance requirements.

FAQs of Screw Nail Production Machines

What could be the reason for the inaccurate size of the screws made by the screwing machine? How to solve it?

The cause may be due to worn moulds, incorrect setting of machine parameters or unstable feeding system. Users need to check and replace the moulds regularly, make sure the machine parameters are set correctly, and calibrate and maintain the feeding system to ensure the stability of material delivery.

How to solve the problem of poorly formed screw head, such as the appearance of lack of material, burrs, etc.?

The lack of material may be caused by insufficient feeding or poor filling of the mould. You can check the feeding device to ensure that the material supply is sufficient, and at the same time clean the inlet of the mould to ensure that the material can enter the mould smoothly. Burr problems are usually caused by worn or unsharp mould edges, which need to be sharpened or replaced in time to ensure smooth screw heads after moulding.

What is the cause of unclear threads or defective threads on screws and how to deal with it?

The reason may be the wear of the rolling wheel, insufficient pressure or incorrect thread processing parameters. We have to check the wear of the thread rolling wheel regularly and replace the wheel with serious wear in time. Adjust the pressure during thread rolling so that it meets the process requirements. At the same time, carefully check the thread processing parameters to ensure that the parameters are set accurately.

How to solve the jamming phenomenon when the machine is making screws?

Jamming may be due to irregular shape of materials, foreign objects in the feeding channel or failure of the feeding mechanism. Firstly, check the shape and size of the material and reject the material that does not meet the requirements. Then, clean the feeding channel to remove the foreign matter. If the problem is with the feeding mechanism, such as loose belts, worn gears, etc., you need to repair the feeding mechanism or replace the damaged parts.

What are the possible reasons and solutions for the low production efficiency of screw machines?

The reason may be the aging of the machine and equipment, unreasonable production process, unskilled operators and so on. For the problem of aging equipment, regular maintenance and repair of the machine, timely replacement of aging parts, and upgrading of the machine if necessary. Optimise the production process, rationally arrange the production flow and improve the production efficiency. Strengthen the training of operators to make them master the operating skills of the machine and improve the operating speed and accuracy.

There are scratches or damages on the surface of the screws produced, how to avoid this?

It may be caused by the friction or collision between the screws and moulds or other parts during the production process. It is important to check whether the surface of the mould is smooth, and if there is any wear or scratch, repair or replace it in time. Adjust the assembly precision of the machine to ensure that the fit gap between each part is reasonable, so as to avoid unnecessary friction and collision of the screws during the production process. At the same time, in the process of material conveying and collecting, appropriate protective measures should be adopted to prevent the surface of the screws from being scratched.

What is the reason for the abnormal noise during the operation of the screw driving machine and how to deal with it?

Abnormal noise may be caused by wear and tear, looseness or poor lubrication of machine parts. Firstly, carry out a comprehensive inspection of the machine to find worn and loose parts, such as bearings, gears, screws, etc., replace worn parts in time and tighten loose screws. Secondly, check the lubrication system of the machine to ensure that all lubrication points can be adequately lubricated, and supplement or replace the lubricant in time.

In mass production of screws, the product quality is found to be unstable, how to solve the problem?

Unstable quality may be caused by fluctuations in the quality of raw materials, unstable performance of machines and equipment, or improper control of the production process. Strengthen the inspection and control of raw materials to ensure that the quality of each batch of raw materials meets the requirements. Regularly maintain and calibrate machines and equipment to ensure stable performance. Optimizing the production process, formulate strict process control parameters, and strengthen the monitoring of the production process to ensure that each production link can be operated in accordance with the process requirements.

How to troubleshoot and solve the malfunction of the electrical system of the screw machine?

First of all, check whether the power supply is normal, including whether the voltage is stable, whether the line is broken or short-circuit phenomenon. You can use a multimeter and other tools to detect, repair or replace the damaged lines. Then check whether the electrical components, such as contactors, relays, fuses, etc., are damaged, and if so, replace the corresponding components in time. At the same time, check whether the program of the control system is normal, whether there is an error code prompt, according to the prompt information for the corresponding processing, such as resetting the parameters, repairing the program loopholes and so on. If the electrical system is more complex, it is recommended that a professional electrical maintenance personnel to overhaul.