Cold heading die for elastic card waste

Abstract

The utility model discloses an elastic card waste cold heading die which comprises a waste stamping die and two waste intercepting assemblies, the two waste intercepting assemblies are arranged on the two sides of the waste stamping die respectively, and each waste intercepting assembly is composed of a loading stud, a telescopic rod, a connecting stud, a mounting base, a brush roller and a reset spring. The connecting stud is fixedly connected to one end of the telescopic rod, the mounting base is fixedly connected to the other end of the telescopic rod, a fixing screw hole is formed in one end of the loading stud, the connecting stud is in threaded connection with the interior of the fixing screw hole, the brush roller is rotatably connected to the interior of the mounting base, and the reset spring is movably connected to the surface of the telescopic rod in a sleeving mode. By means of the integrated design of the loading stud, the telescopic rod, the connecting stud and other components, the waste intercepting assembly is easier and more convenient to disassemble and assemble, disassembly and assembly of the whole waste intercepting assembly can be easily completed only by screwing the manual screwing shifting piece, and therefore the maintenance process is greatly simplified, and the maintenance efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a cold heading mold for elastic waste material. Background Technology

[0002] Cold heading dies are core tools in the cold extrusion forming process for manufacturing fasteners such as bolts, screws, and nuts. Their working principle involves applying high pressure to metal wire or bar stock at room temperature using a die, achieving precise shaping of the part through plastic deformation. Compared to machining, cold heading offers advantages such as high material utilization, high production efficiency, and high part strength, and is widely used in the automotive, machinery, and electronics industries. In cold heading (stamping) production, if the waste material (with skin) generated after punching is not cleaned promptly, it easily adheres to the punch and is subsequently carried out with it. During subsequent stamping, this can easily cause die damage and product defects.

[0003] The cold heading die for elastic card waste disclosed in the authorization announcement number CN217315681U has a simple structure, is easy to operate, does not require extra space, and uses self-clamping clips to hold the waste generated after punching, preventing it from being carried into the die by the punch. The sliding self-clamping clips can accommodate waste of various diameters and have a wide range of applications.

[0004] Although the aforementioned cold heading die uses a self-clamping clip to hold the scrap generated after punching, preventing it from being carried into the die by the punch, there are still some shortcomings that warrant further optimization and improvement. For example, the adjusting screw and the mounting section of the self-clamping clip are separate, without a direct connection structure. This design makes it difficult to easily remove the self-clamping clip along with the adjusting screw, increasing the difficulty of maintaining or replacing it. As a key component of this cold heading die, the self-clamping clip frequently comes into contact with scrap and is subjected to impact, thus requiring regular inspection and maintenance. However, the inconvenience of disassembly and installation may reduce the frequency and quality of maintenance, thereby affecting the overall performance of the die.

[0005] Therefore, it is necessary to invent a cold heading die for elastic card waste to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a cold heading mold for elastic card waste, so as to solve the problems in the above-mentioned technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cold heading die for elastically intercepting waste, comprising a waste punch and two waste interception components. The two waste interception components are respectively disposed on both sides of the waste punch. Each waste interception component consists of a loading stud, a telescopic rod, a connecting stud, a mounting base, a brush roller, and a return spring. The connecting stud is fixedly connected to one end of the telescopic rod, and the mounting base is fixedly connected to the other end of the telescopic rod. One end of the loading stud has a fixing screw hole, and the connecting stud is threaded into the fixing screw hole. The brush roller is rotatably connected to the inside of the mounting base. The return spring is movably sleeved on the surface of the telescopic rod, with one end of the return spring abutting against the loading stud and the other end abutting against the mounting base.

[0008] With its integrated design incorporating components such as mounting studs, telescopic rods, and connecting studs, the waste interception assembly is easier to disassemble and install. The entire assembly can be easily disassembled and assembled simply by turning the relevant parts, greatly simplifying the maintenance process and improving maintenance efficiency.

[0009] Preferably, the waste die has a waste hole at the top, and a probe hole is provided on each side of the inner wall of the waste hole, with the two probe holes arranged symmetrically.

[0010] The two probe holes allow the two waste interception components to be inserted into the waste holes from both sides.

[0011] Preferably, each side of the outer wall of the waste die is provided with a mounting screw hole, the two mounting screw holes are symmetrically arranged, and the two mounting screw holes are respectively connected to the two probe holes.

[0012] The two mounting screw holes facilitate the installation of the two waste interception components on both sides of the waste punching die.

[0013] Preferably, the loading stud is threaded into the mounting screw hole, the telescopic rod passes through the probe hole and extends into the waste hole, and the threaded connection direction of the connecting stud is opposite to that of the loading stud.

[0014] The loading stud and the connecting stud have opposite thread directions, which helps the waste interception assembly maintain stability during installation and removal.

[0015] Preferably, two hand-tightening paddles are fixedly connected to the end of the loading stud away from the telescopic rod, and the two hand-tightening paddles are symmetrically distributed about the centerline of the loading stud.

[0016] Two hand-tightening levers are fixedly connected to the end of the loading stud away from the telescopic rod. This design makes it easier for users to turn the loading stud, thereby making it easier to disassemble and assemble the waste interception assembly and improving the ease of operation.

[0017] Preferably, the waste die has a discharge groove on the front side, the bottom of the waste hole is connected to the discharge groove, and the bottom of the discharge groove is designed with a slope.

[0018] The discharge groove on the front of the scrap die is connected to the scrap hole, and the bottom of the discharge groove is designed with a slope. This design helps the intercepted scrap to be discharged smoothly and avoids the accumulation of scrap inside the die.

[0019] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0020] 1. Compared with the existing cold heading mold design where the adjusting screw and self-clamping clip are separate, this utility model makes the disassembly and installation of the waste interception component easier by integrating the loading stud, telescopic rod, connecting stud and other components. The entire waste interception component can be easily disassembled and assembled by simply turning the hand-operated lever, which greatly simplifies the maintenance process and improves maintenance efficiency.

[0021] 2. After the waste interception assembly is removed from the waste punch, the user can easily disassemble it into individual parts. The telescopic rod can be separated from the loading stud by unscrewing the connecting stud, and then the return spring can be removed and replaced.

[0022] 3. Through the design of the waste interception component, the waste generated after punching can be effectively intercepted during the cold heading process, preventing the waste from being carried out of the mold by the punch, avoiding mold damage and product defects caused by the presence of waste, thereby improving product quality and pass rate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is an exploded view of the structure of this utility model;

[0025] Figure 3 This is a longitudinal sectional view of the present invention before punching.

[0026] Figure 4 This is a cross-sectional view of the present invention before punching.

[0027] Figure 5 This is a cross-sectional view of the horizontal structure of the present invention during the punching operation.

[0028] Figure 6 This is a schematic diagram of the structure of the waste interception component of this utility model;

[0029] Figure 7 This is an exploded view of the waste interception component of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Scrap die; 2. Scrap interception assembly; 3. Loading stud; 4. Telescopic rod; 5. Connecting stud; 6. Mounting base; 7. Brush roller; 8. Return spring; 9. Fixing screw hole; 10. Scrap hole; 11. Probe hole; 12. Mounting screw hole; 13. Hand-tightening lever; 14. Discharge chute. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0033] This utility model provides, for example Figure 1-7 The cold heading die for elastic waste material includes a waste material punch 1 and two waste material interception components 2. The two waste material interception components 2 are respectively disposed on both sides of the waste material punch 1. Each waste material interception component 2 consists of a loading stud 3, a telescopic rod 4, a connecting stud 5, a mounting base 6, a brush roller 7, and a return spring 8. The connecting stud 5 is fixedly connected to one end of the telescopic rod 4, and the mounting base 6 is fixedly connected to the other end of the telescopic rod 4. One end of the loading stud 3 has a fixing screw hole 9, and the connecting stud 5 is threaded into the fixing screw hole 9. The brush roller 7 is rotatably connected to the inside of the mounting base 6. The return spring 8 is movably sleeved on the surface of the telescopic rod 4. One end of the return spring 8 abuts against the loading stud 3, and the other end of the return spring 8 abuts against the mounting base 6.

[0034] In one aspect of this embodiment, a scrap die 1 has a scrap hole 10 at its top, and a probe hole 11 is provided on each side of the inner wall of the scrap hole 10. The two probe holes 11 are symmetrically arranged. A mounting screw hole 12 is provided on each side of the outer wall of the scrap die 1. The two mounting screw holes 12 are symmetrically arranged and are respectively connected to the two probe holes 11. A loading stud 3 is threaded into the mounting screw hole 12. A telescopic rod 4 passes through the probe hole 11 and extends into the scrap hole 10. The threaded connection direction of the connecting stud 5 is opposite to the threaded connection direction of the loading stud 3. Two hand-tightening levers 13 are fixedly connected to the end of the loading stud 3 away from the telescopic rod 4. The two hand-tightening levers 13 are symmetrically distributed about the center line of the loading stud 3. A discharge groove 14 is provided on the front of the scrap die 1. The bottom of the scrap hole 10 is connected to the discharge groove 14. The bottom of the discharge groove 14 is designed with a slope.

[0035] Working principle of this utility model:

[0036] Refer to the instruction manual appendix Figure 1-7When using this utility model, firstly, the waste interception component 2 is threadedly connected to the mounting screw hole 12 of the waste punch 1 by the loading stud 3, and the telescopic rod 4 passes through the probe hole 11 and extends into the waste hole 10. At this time, the brush roller 7 is located inside the waste hole 10.

[0037] When cold heading is performed, the punch passes through the scrap hole 10 to punch the metal material. The scrap generated will enter the scrap hole 10 along with the punch. When the punch is pressed down, it will squeeze the brush rollers 7 on both sides. The brush rollers 7 rotate and squeeze the telescopic rod 4 until the brush rollers 7 are submerged in the probe hole 11. After that, when the punch returns to its original position, the telescopic rod 4 extends into the scrap hole 10 again under the action of the return spring 8. The brush rollers 7 take the opportunity to intercept the scrap attached to the punch and prevent the scrap from being carried out by the punch.

[0038] The intercepted waste falls into the discharge chute 14 and eventually slides outward along the bottom slope of the discharge chute 14, avoiding accumulation inside the discharge chute 14.

[0039] When maintaining or replacing the waste interception assembly 2, the threaded connection design between the loading stud 3 and the mounting screw hole 12, as well as the threaded connection design between the connecting stud 5 and the fixing screw hole 9, allows for easy disassembly and installation of the waste interception assembly 2. When maintenance or replacement of the waste interception assembly 2 is required, simply turn the loading stud 3 using the two hand-tightening levers 13, and then pull the loading stud 3 outwards to detach the entire waste interception assembly 2 from the waste die 1. The structural design of the waste interception assembly 2 not only simplifies the disassembly and assembly process and improves the efficiency of maintenance and replacement, but also reduces the difficulty and cost of maintenance. Regular inspection and maintenance are beneficial for maintaining the overall performance of the mold.

Claims

1. A cold heading die for elastic waste material, comprising a waste material punch (1) and two waste material interception components (2), characterized in that: Two waste interception components (2) are respectively disposed on both sides of the waste punch (1). Each waste interception component (2) consists of a loading stud (3), a telescopic rod (4), a connecting stud (5), a mounting base (6), a brush roller (7), and a return spring (8). The connecting stud (5) is fixedly connected to one end of the telescopic rod (4), and the mounting base (6) is fixedly connected to the other end of the telescopic rod (4). One end of the loading stud (3) is provided with a fixing screw hole (9), and the connecting stud (5) is threaded into the fixing screw hole (9). The brush roller (7) is rotatably connected to the inside of the mounting base (6). The return spring (8) is movably sleeved on the surface of the telescopic rod (4). One end of the return spring (8) abuts against the loading stud (3), and the other end of the return spring (8) abuts against the mounting base (6).

2. The cold heading die for elastic card waste according to claim 1, characterized in that: The waste die (1) has a waste hole (10) at the top, and a probe hole (11) is provided on each side of the inner wall of the waste hole (10). The two probe holes (11) are arranged symmetrically.

3. The cold heading die for elastic card waste according to claim 2, characterized in that: The waste die (1) has a mounting screw hole (12) on each side of its outer wall. The two mounting screw holes (12) are symmetrically arranged and are connected to the two probe holes (11) respectively.

4. The cold heading die for elastic card waste according to claim 3, characterized in that: The loading stud (3) is threaded into the mounting screw hole (12), the telescopic rod (4) passes through the probe hole (11) and extends into the waste hole (10), and the threaded connection direction of the connecting stud (5) is opposite to the threaded connection direction of the loading stud (3).

5. The cold heading die for elastic card waste according to claim 1, characterized in that: Two hand-tightening paddles (13) are fixedly connected to the end of the loading stud (3) away from the telescopic rod (4), and the two hand-tightening paddles (13) are symmetrically distributed about the center line of the loading stud (3).

6. The cold heading die for elastic card waste according to claim 2, characterized in that: The waste die (1) has a discharge groove (14) on the front side. The bottom of the waste hole (10) is connected to the discharge groove (14). The bottom of the discharge groove (14) is designed with a slope.

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