Tooth plate for producing iron sheet locking screws

Abstract

The utility model relates to a tooth plate for producing a lock iron sheet screw, which comprises a main tooth plate and an auxiliary tooth plate, the main tooth plate comprises a main tooth plate body, a first thread rolling unit and a first thread groove. And a first chip removal part is arranged on the first thread rolling unit. The first rolling tooth is provided with a first collecting part. The auxiliary tooth plate comprises an auxiliary tooth plate body, a second thread rolling unit and a second thread groove. The first thread rolling unit is provided with a first chip removal part, the second thread rolling unit is provided with a second chip removal part, the opposite end faces of the main thread plate and the auxiliary thread plate are each provided with a thread rolling part, and a first thread and a second thread are formed by rolling in an inclined mode through the first thread groove and the second thread groove. And the thread rolling efficiency is high. And the first chip removal part and the second chip removal part are arranged to discharge waste chips during thread rolling, so that the thread rolling precision is improved, and the yield is increased. And the screw subjected to thread rolling does not need secondary processing, so that the production efficiency is high. The tooth plate is high in tooth rolling efficiency, high in yield and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of tooth plate moulds, in particular to a tooth plate used for producing locking iron sheet screws. Background Art

[0002] The tooth plate mold is used for the two rectangular templates on the tooth rolling machine, one is the main tooth plate, which is fixed on the structure, and the other is the auxiliary tooth plate, which is installed on the horizontal driving mechanism. The main tooth plate and the auxiliary tooth plate are both provided with tooth patterns. The bolts are placed between the main tooth plate and the auxiliary tooth plate, and drive the auxiliary tooth plate to move laterally, forcing the bolts to be squeezed and rolled between the main tooth plate and the auxiliary tooth plate, thereby completing the tapping of the outer wall of the bolt.

[0003] When the existing screws are used to lock and connect the iron sheets, they cannot achieve a good fixing effect due to structural problems, are easy to slip, and have a poor use effect. Utility Model Content

[0004] In view of this, the utility model provides a thread plate for producing locking sheet metal screws to solve the above technical problems.

[0005] A thread plate for producing locking metal sheet screws, comprising a main thread plate and a secondary thread plate, the main thread plate comprising a main thread plate body, a first thread rolling unit arranged on the main thread plate body, and a first thread groove arranged on the first thread rolling unit, the first thread rolling unit is provided with a first chip removal portion, and the first thread rolling unit is provided with a first gathering portion on a side close to the first chip removal portion, the secondary thread plate comprising a secondary thread plate body, a second thread rolling unit arranged on the secondary thread plate body, and a second thread groove arranged on the second thread rolling unit, the second thread rolling unit is provided with a second chip removal portion, and the length of the second thread groove is the same as the length of the second thread rolling unit.

[0006] Furthermore, the length of the primary tooth plate is smaller than the length of the secondary tooth plate.

[0007] Furthermore, the length of the first chip removal portion is the same as that of the main tooth plate, and the width of one end of the first chip removal portion is greater than the width of the other end.

[0008] Furthermore, the first tooth grooves are composed of two groups of tooth rolling grooves staggeredly arranged on the first tooth rolling unit.

[0009] Furthermore, the first convergent portion is protrudingly arranged along the direction of the first thread rolling unit toward the first chip removal portion, and an end surface of the first convergent portion is an arc surface.

[0010] Furthermore, the main tooth plate is provided with an inclination angle of 10 degrees on one end of the chip removal portion close to the side.

[0011] Furthermore, the length of the second chip removal portion is the same as that of the auxiliary tooth plate. The width of one end of the second chip removal portion is greater than the width of the other end.

[0012] Furthermore, the second tooth groove is composed of a plurality of inclined tooth rolling edges, and the second tooth groove is protrudingly arranged on the second tooth rolling unit.

[0013] Compared with the prior art, the present invention provides a thread plate for producing sheet metal screws, which rubs out the first screw thread and the second screw thread on the screw embryo through the first thread groove and the second thread groove. The thread rubbing efficiency is high. The first chip removal part and the second chip removal part are provided to discharge the waste chips during thread rubbing, thereby improving the thread rubbing accuracy and the yield rate. The screws after thread rubbing do not require secondary processing, and the production efficiency is high. The thread plate has high thread rubbing efficiency and high yield rate, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a structural schematic diagram of a thread plate for producing sheet metal locking screws.

[0015] Figure 2 for Figure 1 A partial enlarged view of part A.

[0016] Figure 3 for Figure 1 A schematic diagram of the structure of a screw used to produce a threaded plate for locking sheet metal screws. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0018] like Figures 1 to 3 As shown, it is a schematic diagram of the structure of a thread plate for producing a sheet metal screw provided by the utility model. The thread plate for producing a sheet metal screw includes a main thread plate 10 and a secondary thread plate 20. It can be imagined that the thread plate for producing a sheet metal screw also includes some other functional structures, such as anti-rust coating, etc., which are well known to those skilled in the art and will not be described in detail here.

[0019] The main tooth plate 10 and the auxiliary tooth plate 20 are both rectangular blocks. The main tooth plate 10 and the auxiliary tooth plate 20 are driven horizontally by a driving mechanism (not shown) to make relative motion, thereby forming threads on the surface of the screw embryo (not shown).

[0020] The length of the primary tooth plate 10 is less than that of the secondary tooth plate 20, so as to ensure that the teeth are fully and completely rolled. The length structure between the primary tooth plate 10 and the secondary tooth plate 20 is prior art and will not be described in detail here.

[0021] The primary tooth plate 10 includes a primary tooth plate body 11 , a first tooth rolling unit 12 disposed on the primary tooth plate body 11 , and a first tooth groove 13 disposed on the first tooth rolling unit 12 .

[0022] The first tooth rolling unit 12 is provided with a first chip removal portion 14. The length of the first chip removal portion 14 is the same as that of the main tooth plate 10. The width of one end of the first chip removal portion 14 is greater than the width of the other end, and plays a role in chip removal during the tooth rolling process.

[0023] The first thread grooves 13 are composed of two groups of thread grooves staggered on the first thread rolling unit 12. One group of thread grooves is perpendicular to the long side of the main thread plate 10, and the other group of thread grooves is obliquely arranged on the first thread rolling unit 12. The first thread grooves 13 are used to Figure 3 ) to produce the first screw thread 2 (see Figure 3 ), plays a locking role when locking the iron sheet.

[0024] A first converging portion 15 is provided on one side of the first thread rolling unit 12 close to the first chip removal portion 14. The first converging portion 15 is provided protrudingly from the first thread rolling unit 12 toward the first chip removal portion 14. The end surface of the first converging portion 15 is an arc surface, which is used to converging the end of the screw embryo 1 into a cone during thread rolling.

[0025] The main tooth plate 10 is provided with a 10-degree inclination angle at the end portion of the first chip removal portion 14 on the side with a larger width, so as to facilitate the sliding out of the screw after shaping.

[0026] The auxiliary tooth plate 20 includes an auxiliary tooth plate body 21 , a second tooth rolling unit 22 disposed on the auxiliary tooth plate body 21 , and a second tooth groove 23 disposed on the second tooth rolling unit 22 .

[0027] The second thread rolling unit 22 is provided with a second chip removal portion 24. The length of the second chip removal portion 24 is the same as that of the auxiliary thread plate 20. The width of one end of the second chip removal portion 24 is greater than the width of the other end, and is used to cooperate with the first chip removal portion 14 to play a chip removal role in thread rolling, thereby improving the thread rolling accuracy.

[0028] The second thread groove 23 is composed of a plurality of inclined thread rolling edges. The length of the second thread groove 23 is the same as the length of the second thread rolling unit 22. The second thread groove 23 is protrudingly arranged on the second thread rolling unit 22, so that the second thread 3 can be squeezed out on the surface of the screw embryo 1 during thread rolling.

[0029] The second thread rolling unit 22 is provided with a second converging portion 25 on one side close to the second chip removal portion 24. The second converging portion 25 has the same size as the first converging portion 15, and the second converging portion 25 cooperates with the first converging portion 15 to conver the end of the screw embryo 1 into a cone, which is more conducive to punching into the iron sheet.

[0030] Compared with the prior art, the present invention provides a thread plate for producing sheet metal screws, which rubs out the first screw thread 2 and the second screw thread 3 on the screw embryo 1 through the first thread groove 13 and the second thread groove 23. The thread rubbing efficiency is high. The first chip removal part 14 and the second chip removal part 24 are provided to discharge the waste chips during thread rubbing, thereby improving the thread rubbing accuracy and the yield rate. The threaded screws do not require secondary processing, and the production efficiency is high. The thread plate has high thread rubbing efficiency and high yield rate, and has high practicality.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A thread plate for producing sheet metal screws, characterized in that: The thread plate for producing locking metal sheet screws includes a main thread plate and a secondary thread plate, the main thread plate includes a main thread plate body, a first thread rolling unit arranged on the main thread plate body, and a first thread groove arranged on the first thread rolling unit, the first thread rolling unit is provided with a first chip removal portion, and the first thread rolling unit is provided with a first gathering portion on a side close to the first chip removal portion, the secondary thread plate includes a secondary thread plate body, a second thread rolling unit arranged on the secondary thread plate body, and a second thread groove arranged on the second thread rolling unit, the second thread rolling unit is provided with a second chip removal portion, and the length of the second thread groove is the same as the length of the second thread rolling unit.

2. The thread plate for producing sheet metal screws according to claim 1, characterized in that: The length of the primary tooth plate is smaller than the length of the secondary tooth plate.

3. The thread plate for producing sheet metal screws according to claim 1, characterized in that: The length of the first chip removal portion is the same as that of the main tooth plate, and the width of one end of the first chip removal portion is greater than the width of the other end.

4. The thread plate for producing sheet metal screws according to claim 1, characterized in that: The first thread grooves are composed of two groups of thread rolling grooves which are staggeredly arranged on the first thread rolling unit.

5. The thread plate for producing sheet metal screws according to claim 1, characterized in that: The first converging portion is protrudingly arranged along the direction from the first thread rolling unit to the first chip removal portion, and the end surface of the first converging portion is an arc surface.

6. The thread plate for producing sheet metal screws according to claim 1, characterized in that: The main tooth plate is arranged at an inclination angle of 10 degrees on one end of the chip removal portion close to the side.

7. The thread plate for producing sheet metal screws according to claim 1, characterized in that: The length of the second chip removal portion is the same as that of the auxiliary tooth plate, and the width of one end of the second chip removal portion is greater than the width of the other end.

8. The thread plate for producing sheet metal screws according to claim 1, characterized in that: The second tooth groove is composed of a plurality of inclined tooth rolling edges, and the second tooth groove is protrudingly arranged on the second tooth rolling unit.

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