Main die structure of screw driving machine

By introducing the design of a sheath and a pressure spring into the main mold structure of the screw driving machine, the problem of deformation and fracture of the punch end is solved, the protection of the punch and the stable operation of the equipment are achieved, and the work efficiency is improved.

CN223368703UActive Publication Date: 2025-09-23WUXING ARTS PROD FACTORY NANAN COUNTY FUJIAN
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Patent Information

Application Number
CN202422636795.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-09-23
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

The main die structure of the existing screw driving machine is prone to deformation and fracture of the punch end when driving slender screws, affecting normal use.

Method used

A main mold structure including a mold base, a main mold body, a liner, a die head, a sleeve, a pressure spring, a striker sleeve, a punch body and a striker body is designed. Through the cooperation of the sleeve and the pressure spring, the suspended part of the punch body is protected to prevent deformation and breakage.

Benefits of technology

It effectively protects the punch needle body, avoids deformation and breakage, ensures the normal use of the screw driving machine and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223368703U_ABST
Patent Text Reader

Abstract

A main die structure of a screw driving machine is provided with a die holder, a main die body, a filler block, a die head, a sheath, a pressure spring, a firing pin sleeve, a punching pin body and a firing pin body. The main die body is arranged in the die holder, and the filler block is connected to one side of the die holder; a first through hole is formed in the main mold body, and a second through hole is formed in the filler block; the die head is located in the first through opening, and one end of the sheath is located in the first through opening. One end of the pressure spring is connected with one end of the die head, and the other end of the pressure spring abuts against the side of the sheath. One end of the firing pin sleeve is located in the second through opening, and the protective sleeve is pressed at the end of the firing pin sleeve through the pressure spring. The striker body is located in the striker sleeve, one end of the striker body is located in the protective sleeve, and the other end of the striker body is limited by one end of the striker body. According to the utility model, the suspended part of the punch pin body is effectively protected, so that the punch pin body is not easy to deform and break in the use process, and the normal use of the screw driving machine is ensured.
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Description

Technical Field

[0001] The utility model belongs to the technical field of screw driving machines, and particularly relates to a main mold structure of a screw driving machine. Background Art

[0002] The screw driving machine can use the principle of compressed air to shoot out screws using a striker and a punch, and then drive the screws into the required products, which can greatly improve work efficiency and reduce the intensity of manual operation.

[0003] In existing screwdriving machines, the main die structure is prone to deformation and fracture when driving a long, thin screw. When the screw enters the main die through the front hole, the punch inside the die has a long retraction stroke, causing the punch end to hang in the air. When impacted by the striker, the punch end can easily deform and fracture, affecting the normal use of the screwdriving machine. Preventing deformation and fracture of the punch end is of practical significance. Utility Model Content

[0004] To this end, the utility model provides a main mold structure of a screw driving machine to solve the problem that the punch pin end is easily deformed and broken when impacted by a striker because the punch pin end is suspended in the air.

[0005] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a main die structure of a screw driving machine, comprising a die base, a main die body, a liner, a die head, a sheath, a pressure spring, a striker sleeve, a punch body and a striker body;

[0006] The main mold body is arranged inside the mold base, and the lining block is connected to one side of the mold base; a first opening is formed inside the main mold body, and a second opening is formed inside the lining block; the die head is located inside the first opening, and one end of the sheath is located inside the first opening;

[0007] One end of the pressure spring is connected to one end of the die head, and the other end of the pressure spring is pressed against the side of the sleeve; one end of the striker sleeve is located inside the second opening, and the sleeve is pressed against the end of the striker sleeve by the pressure spring;

[0008] The striker body is located inside the striker sleeve, one end of the striker body is located inside the sheath, and the other end of the striker body is limited by the one end of the striker body.

[0009] As a preferred solution for the main mold structure of the screw driving machine, a first screw mounting port is formed at the center of the mold head, a second screw mounting port is formed at the center of the sheath, and the center lines of the first screw mounting port and the second screw mounting port are in a straight line.

[0010] As a preferred solution of the main mold structure of the screw driving machine, the inner diameter of the first screw installation opening is the same as the inner diameter of the second screw installation opening;

[0011] The screw body extends from the first screw installation opening through the center of the pressure spring into the interior of the second screw installation opening.

[0012] As a preferred solution for the main mold structure of the screw driving machine, a limiting portion is formed at one end of the sleeve, and the sleeve is pressed against the end of the striker sleeve by the pressure spring through the limiting portion.

[0013] As a preferred solution for the main mold structure of the screw driving machine, an extension portion is formed at one end of the sheath, and the extension portion extends into the interior of the striker sleeve;

[0014] An accommodating groove is formed at the center of the extension portion, and one end of the punching needle body is located inside the accommodating groove.

[0015] As a preferred solution for the main mold structure of the screw driving machine, the inner diameter of the receiving groove is larger than the inner diameter of the first screw installation opening or the second screw installation opening;

[0016] The outer diameter of the punch needle body is smaller than the inner diameter of the accommodating groove, and the outer diameter of the punch needle body is larger than the inner diameter of the first screw installation opening or the second screw installation opening.

[0017] As a preferred solution for the main mold structure of the screw driving machine, the outer diameter of the striker body is greater than the outer diameter of the punch body.

[0018] The utility model has the following advantages: it is provided with a die base, a main die body, a liner, a die head, a sheath, a pressure spring, a striker sleeve, a punch body and a striker body; the main die body is arranged inside the die base, and the liner is connected to one side of the die base; a first opening is formed inside the main die body, and a second opening is formed inside the liner; the die head is inside the first opening, and one end of the sheath is inside the first opening; one end of the pressure spring is connected to one end of the die head, and the other end of the pressure spring is pressed against the side of the sheath; one end of the striker sleeve is inside the second opening, and the sheath is pressed against the end of the striker sleeve by the pressure spring; the striker body is inside the striker sleeve, one end of the punch body is inside the sheath, and the other end of the punch body is limited by one end of the striker body. The utility model can effectively protect the suspended part of the punch body, so that the punch body is not easily deformed or broken during use, ensuring the normal use of the screw driving machine and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0020] Figure 1 A schematic diagram of the main mold structure of the screw driving machine provided by an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the assembly of the die head, sheath, pressure spring, and punch body in the compressed state provided by an embodiment of the present invention.

[0022] In the figure, 1. mold base; 2. main mold body; 3. liner; 4. die head; 5. sheath; 6. pressure spring; 7. striker sleeve; 8. punch body; 9. striker body; 10. first through opening; 11. second through opening; 12. first screw mounting port; 13. second screw mounting port; 14. limiting portion; 15. extension portion; 16. accommodating groove. DETAILED DESCRIPTION

[0023] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0024] See also Figure 1 and Figure 2 The embodiment of the present invention provides a main mold structure of a screw driving machine, including a mold base 1, a main mold body 2, a liner 3, a die head 4, a sheath 5, a pressure spring 6, a striker sleeve 7, a punch body 8 and a striker body 9;

[0025] The main mold body 2 is disposed inside the mold base 1, and the lining block 3 is connected to one side of the mold base 1; a first opening 10 is formed inside the main mold body 2, and a second opening 11 is formed inside the lining block 3; the die head 4 is located inside the first opening 10, and one end of the sheath 5 is located inside the first opening 10;

[0026] Among them, one end of the pressure spring 6 is connected to one end of the die head 4, and the other end of the pressure spring 6 is pressed against the side of the sheath 5; one end of the striker sleeve 7 is located inside the second opening 11, and the sheath 5 is pressed against the end of the striker sleeve 7 by the pressure spring 6;

[0027] The firing pin body 9 is located inside the firing pin sleeve 7 , one end of the punch pin body 8 is located inside the sheath 5 , and the other end of the punch pin body 8 is limited by one end of the firing pin body 9 .

[0028] In this embodiment, a first screw mounting port 12 is formed at the center of the die head 4, and a second screw mounting port 13 is formed at the center of the sheath 5. The center lines of the first screw mounting port 12 and the second screw mounting port 13 are in a straight line; the inner diameter of the first screw mounting port 12 is the same as the inner diameter of the second screw mounting port 13; the screw body extends from the first screw mounting port 12 through the center of the pressure spring 6 into the interior of the second screw mounting port 13.

[0029] Specifically, the screw-driving machine installs screws through the first screw installation opening 12 and the second screw installation opening 13 of the die head 4. Since the first screw installation opening 12 and the second screw installation opening 13 have the same inner diameter and their center lines are aligned, the screw can be smoothly inserted from the first screw installation opening 12 to the second screw installation opening 13. At the same time, the through hole in the center of the pressure spring 6 is cleverly utilized without affecting the function of the pressure spring 6.

[0030] In this embodiment, a limiting portion 14 is formed at one end of the sleeve 5, and the sleeve 5 is pressed against the end of the firing pin sleeve 7 by the pressure spring 6 through the limiting portion 14; an extension portion 15 is formed at one end of the sleeve 5, and the extension portion 15 extends into the interior of the firing pin sleeve 7; a receiving groove 16 is formed at the center of the extension portion 15, and one end of the punch body 8 is located inside the receiving groove 16.

[0031] Specifically, the sheath 5 can be pressed against the end of the firing pin sleeve 7 by the pressure spring 6 through its own limiting portion 14, and at the same time, the extension portion 15 at one end of the sheath 5 presses the punch body 8. Since a movable sheath 5 is added behind the main mold body 2, when the light nail enters the main mold body 2 and pushes the punch body 8 back, the pressure spring 6 inside pops out the sheath 5, so that the sheath 5 presses against the end of the firing pin sleeve 7 for limiting, and the punch body 8 is limited by the firing pin body 9. In addition, the punch body 8 is wrapped by the sheath 5, so it is not easy to deform and break, thereby protecting the suspended punch body 8.

[0032] In this embodiment, the inner diameter of the accommodating groove 16 is larger than the inner diameter of the first screw mounting port 12 or the second screw mounting port 13; the outer diameter of the punch body 8 is smaller than the inner diameter of the accommodating groove 16, and the outer diameter of the punch body 8 is larger than the inner diameter of the first screw mounting port 12 or the second screw mounting port 13; the outer diameter of the striker body 9 is larger than the outer diameter of the punch body 8.

[0033] Specifically, since the inner diameter of the accommodating groove 16 is relatively large, it can accommodate a punch body 8 whose outer diameter is larger than the inner diameter of the first screw mounting port 12 or the second screw mounting port 13, and the outer diameter of the punch body 8 itself is larger than the outer diameter of the slender screw in the first screw mounting port 12 and the second screw mounting port 13. When the punch body 8 is fired by the firing pin body 9, the punch body 8 can impact the slender screw, thereby ejecting the slender screw.

[0034] To sum up, the utility model is provided with a die base 1, a main die body 2, a liner 3, a die head 4, a sleeve 5, a pressure spring 6, a striker sleeve 7, a punch body 8 and a striker body 9; the main die body 2 is arranged inside the main die body 2, and the liner 3 is connected to one side of the die base 1; a first opening 10 is formed inside the main die body 2, and a second opening 11 is formed inside the liner 3; the die head 4 is inside the first opening 10, and one end of the sleeve 5 is inside the first opening 10; one end of the pressure spring 6 is connected to one end of the die head 4, and the other end of the pressure spring 6 is pressed against the side of the sleeve 5; one end of the striker sleeve 7 is inside the second opening 11, and the sleeve 5 is pressed against the end of the striker sleeve 7 by the pressure spring 6; the striker body 9 is inside the striker sleeve 7, one end of the punch body 8 is inside the sleeve 5, and the other end of the punch body 8 is limited by one end of the striker body 9. The screw-driving machine installs screws through the first and second screw-installing openings 12, 13 of the die head 4. Because the first and second screw-installing openings 12, 13 have the same inner diameter and their centerlines are aligned, the screw can be smoothly inserted from the first screw-installing opening 12 to the second screw-installing opening 13. The through-hole in the center of the pressure spring 6 is cleverly utilized to prevent the pressure spring 6 from interfering with its function. The sheath 5, through its retaining portion 14, is pressed against the end of the striker sleeve 7 by the pressure spring 6. Simultaneously, an extension 15 at one end of the sheath 5 compresses the punch body 8. Because a movable sheath 5 is added behind the main die body 2, when the light nail enters the main die body 2 and pushes the punch body 8 backward, the pressure spring 6 inside ejects the sheath 5, causing it to press against the end of the striker sleeve 7 for retaining position. The punch body 8 is retained by the striker body 9. Furthermore, the sheath 5 protects the punch body 8 from deformation and breakage, thus protecting the suspended punch body 8. Because the inner diameter of the receiving groove 16 is relatively large, it can accommodate a punch body 8 having an outer diameter larger than the inner diameter of the first screw installation opening 12 or the second screw installation opening 13. Moreover, the outer diameter of the punch body 8 itself is larger than the outer diameter of the slender screw in the first screw installation opening 12 and the second screw installation opening 13. When the punch body 8 is fired by the striker body 9, the punch body 8 can impact the slender screw, thereby ejecting the slender screw. The utility model can effectively protect the suspended portion of the punch body 8, making it less likely for the punch body 8 to deform or break during use, ensuring the normal use of the screw driving machine and improving work efficiency.

[0035] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the spirit of the present invention, are within the scope of protection claimed herein.

Claims

1. A main mold structure of a screw driving machine, characterized in that: It comprises a die base (1), a main die body (2), a liner (3), a die head (4), a sheath (5), a pressure spring (6), a striker sleeve (7), a punch body (8) and a striker body (9); The main mold body (2) is arranged inside the mold base (1), and the lining block (3) is connected to one side of the mold base (1); a first opening (10) is formed inside the main mold body (2), and a second opening (11) is formed inside the lining block (3); the die head (4) is located inside the first opening (10), and one end of the sheath (5) is located inside the first opening (10); One end of the pressure spring (6) is connected to one end of the die head (4), and the other end of the pressure spring (6) is pressed against the side of the sleeve (5); one end of the striker sleeve (7) is located inside the second opening (11), and the sleeve (5) is pressed against the end of the striker sleeve (7) by the pressure spring (6); The striker body (9) is located inside the striker sleeve (7), one end of the punching needle body (8) is located inside the sheath (5), and the other end of the punching needle body (8) is limited by one end of the striker body (9).

2. The main mold structure of a screw driving machine according to claim 1, characterized in that: A first screw mounting opening (12) is formed at the center of the die head (4), and a second screw mounting opening (13) is formed at the center of the sheath (5), and the center lines of the first screw mounting opening (12) and the second screw mounting opening (13) are in a straight line.

3. The main mold structure of a screw driving machine according to claim 2, characterized in that: The inner diameter of the first screw installation opening (12) is the same as the inner diameter of the second screw installation opening (13); The screw body extends from the first screw installation opening (12) through the center of the pressure spring (6) into the interior of the second screw installation opening (13).

4. The main mold structure of a screw driving machine according to claim 3, characterized in that: A limiting portion (14) is formed at one end of the sheath (5), and the sheath (5) is pressed against the end of the striker sleeve (7) by the pressure spring (6) through the limiting portion (14).

5. The main mold structure of a screw driving machine according to claim 4, characterized in that: An extension portion (15) is formed at one end of the sheath (5), and the extension portion (15) extends into the interior of the striker sleeve (7); A receiving groove (16) is formed at the center of the extension portion (15), and one end of the punching needle body (8) is located inside the receiving groove (16).

6. The main mold structure of a screw driving machine according to claim 5, characterized in that: The inner diameter of the receiving groove (16) is larger than the inner diameter of the first screw installation opening (12) or the second screw installation opening (13); The outer diameter of the punch needle body (8) is smaller than the inner diameter of the accommodating groove (16), and the outer diameter of the punch needle body (8) is larger than the inner diameter of the first screw installation opening (12) or the second screw installation opening (13).

7. The main mold structure of a screw driving machine according to claim 6, characterized in that: The outer diameter of the striker body (9) is greater than the outer diameter of the punching needle body (8).