Process for manufacturing a reinforced screw

Abstract

The application discloses a preparation process of a reinforced screw, which comprises the following steps: S1. acid pickling a base wire and cutting the base wire into a base cylinder with a required diameter; S2. using a polishing device to polish the lower part of the base cylinder to form a base stud, using the polishing device to form a screw stud head on the top of the base cylinder, and using a milling machine to mill the screw stud head to form a screw head; S3. using a water polishing device to form a rectangular groove on the base stud, wherein the diameter of the base stud is twice the width of the rectangular groove; S4. after step S3 is completed, forming threads on the base stud; S5. after step S4 is completed, uniformly spraying the surface of the base stud with antioxidant paint, and placing the base stud in an oven at 55-65 DEG C for drying; S6. carrying out corona treatment on the rectangular groove of the base stud; and S7. after step S6 is completed, using a laser welding gun to perform laser edge sealing on the rectangular groove of the base stud and the edge of a nylon pad, and after cooling is completed, the preparation is completed.

Description

Technical Field

[0001] This invention belongs to the field of screw technology, specifically relating to a manufacturing process for a reinforced screw. Background Technology

[0002] Screws are tools that use the rotation of an object's inclined plane and friction to gradually tighten objects and machine parts. Screws are indispensable industrial necessities in daily life. They come in different materials and shapes depending on the application. Steel screws and plastic screws are commonly used in toys, daily necessities, and light industrial products, but they have relatively poor rigidity and support strength, and are prone to thread wear during drilling. Screws with composite nylon washers on the stud surface are made by using adhesive to fix strip-shaped nylon washers to both sides or around the stud surface. These nylon washers work as the stud rotates within the screw hole. The analysis of deformation and filling between the thread and the screw hole allows the screw to be firmly drilled into the screw hole during application. However, the current manufacturing process of this type of screw is usually quite simple, which is to simply open a groove on the screw and then apply adhesive to bond the nylon washer. This method makes it very easy for the nylon washer to fall off under stress during the storage and use of the screw. In addition, this type of screw cannot be surface treated in subsequent processes, so it can usually only be a custom-made plastic screw. However, the application scenarios of plastic screws are relatively limited. Based on this, it is necessary to develop a reinforced metal screw with a composite nylon washer. Summary of the Invention

[0003] To solve the above-mentioned technical problems, a manufacturing process for reinforced screws is proposed.

[0004] The technical solution adopted by the present invention to achieve the above objectives is as follows: A manufacturing process for a reinforced screw includes the following steps: S1. Pickle the base wire and cut it into base columns of the required wire diameter; S2. The lower part of the foundation column is initially ground using a grinding machine to form a foundation stud. The top of the foundation column is formed with a grinding machine to form a screw head, and the screw head is milled by a milling machine to form a screw head. S3. A rectangular groove is made on the base stud using a water grinding machine, wherein the diameter of the base stud is twice the width of the rectangular groove; S4. After step S3 is completed, the base stud is milled using a thread milling machine to form threads on the base stud; S5. After step S4 is completed, the base stud is cleaned and dried. After the base stud is dried, an antioxidant coating is evenly sprayed onto the surface of the base stud and then placed in an oven at 55-65°C to dry. S6. The rectangular groove of the base stud is corona treated, and then silicone adhesive is used to cover and coat the rectangular groove to form a colloidal layer. A nylon pad with a length and width matching the rectangular groove is embedded in the rectangular groove. The nylon pad and the base stud are pressed and fixed in a fixing fixture and placed for 30 minutes. Then, it is placed in an oven at 55-65℃ to dry. S7. After step S6 is completed, the rectangular groove of the base stud and the edge of the nylon pad are laser-sealed using a laser welding gun. After cooling, the preparation is complete.

[0005] Furthermore, in step S3, the rectangular grooves opened on the base stud are two in number, arranged parallel to each other on both sides of the base stud.

[0006] Furthermore, in step S3, the basic stud has four rectangular slots with equal spacing. The rows are symmetrically arranged around the base studs.

[0007] Furthermore, the depth of the rectangular groove is greater than the depth of the basic stud thread.

[0008] Furthermore, the thickness of the nylon pad is greater than the thickness of the rectangular groove.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: Before the metal screw is laminated with the nylon washer, a surface treatment is performed to ensure that the surface of the molded metal screw has anti-oxidation capabilities. By performing corona treatment before the process of laminating the nylon washer in the rectangular groove, the silicone adhesive can be evenly adhered to the inner wall of the rectangular groove, so that the nylon washer can make complete contact with the adhesive layer when it is embedded in the laminate, ensuring the bonding effect of the nylon washer. At the same time, after the adhesive layer is completely cured, the edges of the rectangular groove and the nylon washer are laser-sealed to connect the edge of the nylon washer to the stud. The silicone adhesive has high temperature resistance and will not fail during the laser sealing process. Compared with the existing production process, the implementation steps of this invention can stably produce reinforced metal screws. Detailed Implementation

[0010] To further understand the invention's content, features, and effects, the following embodiments are provided. Example 1

[0011] A manufacturing process for a reinforced screw with a wire diameter of 15mm and two nylon washers on the stud includes the following steps: S1. Pickle the base wire and cut it into 15mm base columns; S2. The lower part of the foundation column is initially ground using a grinding machine to form a foundation stud. The top of the foundation column is formed with a grinding machine to form a screw head, and the screw head is milled by a milling machine to form a screw head. S3. Two parallel and opposite rectangular grooves are made on the base stud using a water grinding machine, wherein the diameter of the base stud is twice the width of the rectangular groove; S4. After step S3 is completed, the base stud is milled using a thread milling machine to form threads on the base stud; S5. After step S4 is completed, the base stud is cleaned and dried. After the base stud is dried, an antioxidant coating is evenly sprayed onto the surface of the base stud and then placed in an oven at 55-65°C to dry. S6. The rectangular groove of the base stud is corona treated, and then silicone adhesive is used to cover and coat the rectangular groove to form a colloidal layer. A nylon pad with a length and width matching the rectangular groove is embedded in the rectangular groove. The nylon pad and the base stud are pressed and fixed in a fixing fixture and placed for 30 minutes. Then, it is placed in an oven at 55-65℃ to dry. S7. After step S6 is completed, the rectangular groove of the base stud and the edge of the nylon pad are laser-sealed using a laser welding gun. After cooling, the preparation is complete. Example 2

[0012] A manufacturing process for a reinforced screw with a wire diameter of 15mm and two nylon washers on the stud includes the following steps: S1. Pickle the base wire and cut it into 15mm base columns; S2. The lower part of the foundation column is initially ground using a grinding machine to form a foundation stud. The top of the foundation column is formed with a grinding machine to form a screw head, and the screw head is milled by a milling machine to form a screw head. S3. Four equally spaced, parallel rectangular grooves are made on the base stud using a water grinding machine, wherein the diameter of the base stud is twice the width of the rectangular grooves; S4. After step S3 is completed, the base stud is milled using a thread milling machine to form threads on the base stud; S5. After step S4 is completed, the base stud is cleaned and dried. After the base stud is dried, an antioxidant is applied. The coating is evenly sprayed onto the surface of the base stud and then dried in an oven at 55-65°C. S6. The rectangular groove of the base stud is corona treated, and then silicone adhesive is used to cover and coat the rectangular groove to form a colloidal layer. A nylon pad with a length and width matching the rectangular groove is embedded in the rectangular groove. The nylon pad and the base stud are pressed and fixed in a fixing fixture and placed for 30 minutes. Then, it is placed in an oven at 55-65℃ to dry. S7. After step S6 is completed, the rectangular groove of the base stud and the edge of the nylon pad are laser-sealed using a laser welding gun. After cooling, the preparation is complete.

[0013] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. A manufacturing process for a reinforced screw, wherein the screw is a metal screw, characterized in that, The preparation steps include the following: S1. Pickle the base wire and cut it into base columns of the required wire diameter; S2. The lower part of the foundation column is initially ground using a grinding machine to form a foundation stud. The top of the foundation column is formed with a grinding machine to form a screw head, and the screw head is milled by a milling machine to form a screw head. S3. A rectangular groove is made on the base stud using a water grinding machine, wherein the diameter of the base stud is twice the width of the rectangular groove; S4. After step S3 is completed, the base stud is milled using a thread milling machine to form threads on the base stud; S5. After step S4 is completed, the base stud is cleaned and dried. After the base stud is dried, an antioxidant coating is evenly sprayed onto the surface of the base stud and then placed in an oven at 55-65°C to dry. S6. The rectangular groove of the base stud is corona treated, and then silicone adhesive is used to cover and coat the rectangular groove to form a gel layer. A nylon pad with a length and width matching the rectangular groove is embedded in the rectangular groove. The nylon pad and the base stud are pressed and fixed in a fixing fixture and placed for 30 minutes. Then, it is placed in an oven at 55-65℃ to dry. S7. After step S6 is completed, the rectangular groove of the base stud and the edge of the nylon pad are laser-sealed using a laser welding gun. After cooling, the preparation is complete.

2. The manufacturing process of a reinforced screw according to claim 1, characterized in that: In step S3, two rectangular slots are opened on the base stud, which are arranged parallel to each other on both sides of the base stud.

3. The manufacturing process of a reinforced screw according to claim 1, characterized in that: In step S3, four rectangular slots are opened on the base stud, which are equally spaced and symmetrically arranged around the base stud.

4. The manufacturing process of a reinforced screw according to claim 1, characterized in that: The depth of the rectangular groove is greater than the depth of the basic stud thread.

5. The manufacturing process of a reinforced screw according to claim 1, characterized in that: The thickness of the nylon pad is greater than the thickness of the rectangular groove.