Cold header for bolt production

Abstract

The utility model relates to the technical field of cold headers, and provides a cold header for bolt production, which comprises a collecting box shell, a first bottom plate is fixedly mounted in the collecting box shell, and a limiting block is fixedly mounted at the top of the first bottom plate. By means of the design of the collecting groove plate, the connecting piece, the sliding block and the spring, bolts machined on the upper portion can fall into the collecting box in the working process, the collecting groove plate in the collecting box moves downwards under the gravity of the bolts, meanwhile, the falling height of the bolts can be reduced as much as possible, the bolts are prevented from being damaged by collision, and generated noise is avoided; the spring is compressed through the connecting piece and the sliding block after the collecting groove plate, when the number of the bolts on the collecting groove plate is larger, the collecting groove plate moves downwards more, the falling distance of the bolts is reduced as far as possible, collision damage of the bolts and large noise are avoided, and it is guaranteed that the bolts cannot be damaged when falling. The problems of damage and noise caused by bolt collision in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading machines, in particular to a cold heading machine for bolt production. Background Art

[0002] A cold heading machine for bolt production is a device specially used for batch production of bolts and other fasteners. The cold heading machine works at room temperature and applies pressure to bars or wires to cause them to undergo plastic deformation in the mold cavity, thereby forming them into parts such as bolts according to specified shapes and sizes. This method is mainly used to manufacture metal products such as bolts, nuts, nails, rivets and steel balls, and the material utilization rate can reach 80-90%. Currently, bolt cold heading machines on the market generally use large receiving boxes to collect finished bolts in the discharging process. In this way, the bolts fall vertically directly from the discharge port to the bottom of the receiving box. Due to the significant height difference between the two, this direct impact can not only easily cause damage to the appearance of the bolts, but may also cause greater noise pollution, which has an adverse effect on the health of operators and the working environment. Utility Model Content

[0003] The utility model provides a cold heading machine for bolt production, which solves the problems of damage and noise caused by bolt collision in the related technology.

[0004] The technical solution of the utility model is as follows: a cold heading machine for bolt production, comprising a collection box shell, a No. 1 bottom plate is fixedly installed inside the collection box shell, a limit block is fixedly installed on the top of the No. 1 bottom plate, a collection box located inside the collection box shell is slidably installed above the limit block, a collection trough plate is slidably installed inside the collection box, connecting rods are fixedly installed on both sides of the bottom end of the collection box, a slider is sleeved on the surface of the connecting rod, a spring located on the outside of the slider is sleeved on the surface of the connecting rod, a No. 2 fixed block is fixedly installed on the top of the slider, a No. 2 rotating rod is rotatably connected between the No. 2 fixed blocks, a No. 1 fixed block is fixedly installed on the bottom of the collection trough plate, a No. 1 rotating rod is rotatably connected between the No. 1 fixed blocks, a connecting piece is sleeved on the surface of the No. 1 rotating rod, and the connecting piece is sleeved on the surface of the No. 2 rotating rod on the side away from the No. 1 rotating rod.

[0005] As an optimal technical solution of the present invention, a No. 2 base plate is fixedly installed on the top of the collection box shell, a baffle is fixedly installed on the top of the No. 2 base plate, a large classification box located above the No. 2 base plate is movably installed inside the baffle, a connecting block is fixedly installed on the right side of the large classification box, a small classification box is fixedly installed on the right side of the connecting block, a medium-sized classification box is fixedly installed on the right side of the small classification box, the medium-sized classification box and the small classification box are fixedly connected by a connecting block, a No. 2 motor is fixedly installed on the outer wall of the baffle, the output end of the No. 2 motor is fixedly connected to the No. 2 gear located on the inner wall of the baffle, a No. 2 rack is fixedly installed on the side of the small classification box, the No. 2 rack and the No. 2 gear are meshing transmission, a blocking block is fixedly installed on the inner wall of the small classification box, two cylindrical grooves are symmetrically opened in the small classification box, a No. 1 rotating device is rotatably installed inside the cylindrical groove, and a No. 2 rotating device is rotatably installed inside the medium-sized classification box.

[0006] As an optimal technical solution of the present utility model, a No. 1 motor is fixedly installed on the outside of the collection box shell, and the output end of the No. 1 motor is fixedly connected to the No. 1 gear located on the inner wall of the collection box shell. A No. 1 rack is slidably installed inside the collection box shell, and the No. 1 rack is fixedly connected to the collection box, and the No. 1 rack and the No. 1 gear are meshed for transmission.

[0007] As an optimal technical solution of the present invention, a threaded rod is rotatably installed on the side of the collection box shell, a base is sleeved on the outer surface of the threaded rod, and a No. 3 motor is fixedly installed on the end of the threaded rod away from the collection box shell.

[0008] As an optimal technical solution of the present invention, a cold heading machine is fixedly installed on the top of the base, a machine door is rotatably installed on the side of the cold heading machine, a discharge port located above the collection box shell is fixedly installed on the bottom of the cold heading machine, and a controller is fixedly installed on the top of the cold heading machine.

[0009] As a preferred technical solution of the present invention, a handle is fixedly installed on the top of the collection box, and the surface of the handle is made of ABS plastic.

[0010] As a preferred technical solution of the present invention, a card frame is fixedly installed on the left side of the collection box, and a card slot is fixedly installed on the right side of the collection box.

[0011] As a preferred technical solution of the present invention, the side shape of the blocking block is triangular, and a rubber pad is fixedly installed on the inner wall of the cylindrical groove.

[0012] As a preferred technical solution of the present invention, a rectangular groove is opened on the upper surface of the collection box shell, and the top of the rectangular groove is aligned and connected with the bottom of the large classification box, the small classification box and the medium classification box respectively.

[0013] As a preferred technical solution of the present invention, the collecting trough plate is made of No. 1 steel, and the upper surface of the collecting trough plate is made of polypropylene.

[0014] The working principle and beneficial effects of the utility model are as follows:

[0015] The utility model uses the design of the collecting slot plate, connecting piece, slider and spring. During operation, the bolts processed above will fall into the collecting box. The collecting slot plate inside the collecting box is subjected to the gravity of the bolts, and the collecting slot plate moves downward. At the same time, the falling height of the bolts can be reduced as much as possible, thereby avoiding damage to the bolts and the noise generated. The collecting slot plate will then compress the spring through the connecting piece and the slider. The more bolts there are on the collecting slot plate, the more the collecting slot plate moves downward, thereby reducing the falling distance of the bolts as much as possible, avoiding damage to the bolts and the generation of loud noise, ensuring that the bolts will not be damaged when they fall, and improving the bolt production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the upper and lower collecting devices of the utility model;

[0019] Figure 3 This is a structural diagram of the working principle of the upper and lower collecting devices of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the collection box of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure inside the collection box of the utility model;

[0022] Figure 6 This is a structural diagram of the classification box of the utility model;

[0023] Figure 7 This is a schematic structural diagram of the internal cross-section of the classification box of the utility model;

[0024] Figure 8 It is a structural diagram of the mobile device of the present utility model.

[0025] Figure: 1. Collection box housing; 2. Motor No. 1; 3. Gear No. 1; 4. Collection box; 5. Bottom plate No. 1; 6. Stop block; 7. Rack No. 1; 8. Collection trough plate; 9. Handle; 10. Frame; 11. Slot; 12. Fixed block No. 1; 13. Rotating rod No. 1; 14. Connecting piece; 15. Rotating rod No. 2; 16. Slider; 17. Connecting rod; 18. Spring; 19. Fixed block No. 2; 20. Bottom plate No. 2 ; 21. Baffle; 22. No. 2 motor; 23. Large classification box; 24. Small classification box; 25. Medium classification box; 26. Connecting block; 27. No. 2 gear; 28. No. 2 rack; 29. ​​Controller; 30. Block; 31. No. 1 rotating device; 32. No. 2 rotating device; 33. Base; 34. Threaded rod; 35. No. 3 motor; 36. Machine door; 37. Cold heading machine; 38. Discharge port. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] This embodiment proposes a cold heading machine for bolt production, including a collection box shell 1, a No. 1 bottom plate 5 is fixedly installed inside the collection box shell 1, a limit block 6 is fixedly installed on the top of the No. 1 bottom plate 5, a collection box 4 located inside the collection box shell 1 is slidably installed above the limit block 6, a collection trough plate 8 is slidably installed inside the collection box 4, connecting rods 17 are fixedly installed on both sides of the bottom end of the collection box 4, a slider 16 is sleeved on the surface of the connecting rod 17, a spring 18 located on the outside of the slider 16 is sleeved on the surface of the connecting rod 17, a No. 2 fixed block 19 is fixedly installed on the top of the slider 16, a No. 2 rotating rod 15 is rotatably connected between the No. 2 fixed blocks 19, a No. 1 fixed block 12 is fixedly installed on the bottom of the collection trough plate 8, a No. 1 rotating rod 13 is rotatably connected between the No. 1 fixed blocks 12, a connecting piece 14 is sleeved on the surface of the No. 1 rotating rod 13, and the connecting piece 14 is sleeved on the surface of the No. 2 rotating rod 15 on the side away from the No. 1 rotating rod 13.

[0028] In this embodiment, the staff turns on the No. 3 motor 35, the No. 3 motor 35 drives the threaded rod 34 to rotate, and the threaded rod 34 drives the base 33 to move and the entire component on the top of the base 33 to move, completing the distance between the base 33 and the collection box shell 1, and adjusting the time when the bolt falls and docks with the collection device. At this time, by controlling the controller 29, the cold heading machine 37 starts to work, and the processed bolts are discharged from the discharge port 38, and then the No. 2 motor 22 is turned on, and the output end of the No. 2 motor 22 drives the No. 2 gear 27 to rotate, and the No. 2 gear 27 and the No. 2 rack 28 are engaged and driven, and the No. 2 rack 28 drives the entire component fixed to it to move left and right, completing the docking of different classification devices on the No. 2 rack 28 , completing the classification of different types of bolts, and finally the bolts will fall into the collection box 4. The collection slot plate 8 inside the collection box 4 is affected by the gravity of the bolts, and the collection slot plate 8 moves downward. At the same time, it can reduce the falling height of the bolts as much as possible to avoid damage to the bolts and the noise generated. The collection slot plate 8 will then compress the spring 18 through the connecting piece 14 and the slider 16. When the number of bolts on the collection slot plate 8 is more, the collection slot plate 8 moves downward more, and the more bolts are collected. When the No. 1 motor 2 is rotated, the output end of the No. 1 motor 2 drives the No. 1 gear 3 to rotate, and the meshing transmission of the No. 1 gear 3 and the No. 1 rack 7 causes the entire component connected to the No. 1 rack 7 to move left and right, completing the replacement of the collection box 4.

[0029] Through the design of the collecting slot plate 8, the connecting piece 14, the slider 16 and the spring 18, during operation, the bolts processed above will fall into the collecting box 4. The collecting slot plate 8 inside the collecting box 4 is affected by the gravity of the bolts, and the collecting slot plate 8 moves downward. At the same time, it can reduce the falling height of the bolts as much as possible to avoid damage to the bolts and the noise generated. The collecting slot plate 8 will then compress the spring 18 through the connecting piece 14 and the slider 16. The more bolts there are on the collecting slot plate 8, the more the collecting slot plate 8 moves downward, reducing the falling distance of the bolts as much as possible to avoid damage to the bolts and the generation of loud noise, ensuring that the bolts will not be damaged when they fall, and improving the bolt production efficiency.

[0030] Based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes that the top of the collection box housing 1 is fixedly installed with a second bottom plate 20, the top of the second bottom plate 20 is fixedly installed with a baffle 21, and the baffle 21 is movably installed with a large classification box 23 located above the second bottom plate 20, the right side of the large classification box 23 is fixedly installed with a connecting block 26, the right side of the connecting block 26 is fixedly installed with a small classification box 24, the right side of the small classification box 24 is fixedly installed with a medium classification box 25, the medium classification box 25 and the small classification box 24 are connected by the connecting block 2 6 is fixedly connected, the outer wall of the baffle 21 is fixedly mounted with a No. 2 motor 22, the output end of the No. 2 motor 22 is fixedly connected to the No. 2 gear 27 located on the inner wall of the baffle 21, the side of the small classification box 24 is fixedly mounted with a No. 2 rack 28, the No. 2 rack 28 and the No. 2 gear 27 are engaged transmission, the inner wall of the small classification box 24 is fixedly mounted with a blocking block 30, the small classification box 24 has two symmetrical cylindrical grooves, the cylindrical groove is rotatably mounted with a No. 1 rotating device 31, and the medium classification box 25 is rotatably mounted with a No. 2 rotating device 32.

[0031] In this embodiment, through the design of the large classification box 23, the small classification box 24 and the medium classification box 25, when the No. 2 motor 22 is turned on, the output end of the No. 2 motor 22 drives the No. 2 gear 27 to rotate, the No. 2 gear 27 and the No. 2 rack 28 are engaged and driven, and the No. 2 rack 28 drives the entire component fixed to it to move left and right. When the bolts fall into the large classification box 23, they can fall directly into the collection device. The large classification box 23 is suitable for collecting large bolts. When the bolts fall into the small classification box 24, the small bolts are blocked by the blocking block 30. After diversion, when passing through the cylindrical groove, it falls onto the No. 1 rotating device 31. Its own weight will cause the No. 1 rotating device 31 to rotate, and then fall into the collecting device, preventing too many small bolts from falling quickly and colliding with each other, and preventing them from making collision sounds, delaying the fall, and reducing the impact force. When the bolts fall into the medium-sized classification box 25, the bolts can be slowly lowered by falling onto the No. 2 rotating device 32, and the medium-sized bolts can be collected. This design realizes the collection of different types of bolts, avoids subsequent manual classification, and improves work efficiency.

[0032] Based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes that a No. 1 motor 2 is fixedly installed on the outside of the collection box shell 1, and the output end of the No. 1 motor 2 is fixedly connected to the No. 1 gear 3 located on the inner wall of the collection box shell 1. A No. 1 rack 7 is slidably installed inside the collection box shell 1, and the No. 1 rack 7 is fixedly connected to the collection box 4, and the No. 1 rack 7 and the No. 1 gear 3 are in meshing transmission.

[0033] In this embodiment, by installing the first gear 3 and the first rack 7, when the first motor 2 is turned on, the output end of the first motor 2 drives the first gear 3 to rotate, and the meshing transmission of the first gear 3 and the first rack 7 drives the entire component connected with the first rack 7 to move left and right, completing the replacement of the collection box 4, facilitating the collection of bolts, reducing manual replacement of the collection device, and improving work efficiency.

[0034] Based on the same concept as in Embodiment 1, the side of the collection box shell 1 is rotatably installed with a threaded rod 34, the outer surface of the threaded rod 34 is sleeved with a base 33, and the threaded rod 34 is fixedly installed with a third motor 35 at the end away from the collection box shell 1.

[0035] In this embodiment, by installing the threaded rod 34, the third motor 35 is turned on to drive the threaded rod 34 to rotate, the threaded rod 34 drives the base 33 to move and the entire component on the top of the base 33 to move, completing the distance between the base 33 and the collection box shell 1, adjusting the bolt falling and the docking of the collection device, preventing the bolts from falling to the ground, and improving the practicality.

[0036] Based on the same concept as in Embodiment 4, the top of the base 33 is fixedly installed with a cold header 37, the side of the cold header 37 is rotatably installed with a machine door 36, the bottom of the cold header 37 is fixedly installed with a discharge port 38 above the collection box shell 1, and the top of the cold header 37 is fixedly installed with a controller 29.

[0037] In this embodiment, the installation of the machine door 36 and the controller 29 facilitates the operation of the staff and facilitates the cleaning of the inside of the cold header 37, improving the practicality.

[0038] Based on the same concept as in Embodiment 1, the top of the collection box 4 is fixedly installed with a handle 9, and the surface of the handle 9 is made of ABS plastic.

[0039] In this embodiment, the installation of the handle 9 facilitates the replacement of the collection box 4 and makes carrying more convenient, improves work efficiency, and the surface of the handle 9 is ABS plastic, which makes the handle 9 have high strength, high wear resistance and high impact resistance, meeting the work requirements.

[0040] Based on the same concept as in Embodiment 1, the left side of the collection box 4 is fixedly installed with a clamping frame 10, and the right side of the collection box 4 is fixedly installed with a clamping groove 11.

[0041] In this embodiment, by designing the clamping frame 10 and the clamping groove 11, when connecting multiple collection boxes 4, the clamping groove 11 can be inserted into the clamping frame 10 to complete the connection of the components, improving the practicality.

[0042] Based on the same concept as the above-mentioned embodiment 2, this embodiment further proposes that the side shape of the blocking block 30 is triangular, and a rubber pad is fixedly installed on the inner wall of the cylindrical groove.

[0043] In this embodiment, by setting the side of the blocking block 30 to a triangular shape, the falling materials can be separated and fall into the cylindrical groove to complete the diversion. The installation of the rubber pad improves the softness and prevents the impact force of the falling bolt from damaging the cylindrical inner wall.

[0044] Based on the same concept as the above-mentioned embodiment 2, this embodiment also proposes that a rectangular groove is opened on the upper surface of the collection box shell 1, and the top of the rectangular groove is aligned and connected with the bottom of the large classification box 23, the small classification box 24 and the medium classification box 25 respectively.

[0045] In this embodiment, through the design of the rectangular groove on the upper surface of the collection box shell 1, the bolts in the large classification box 23, the small classification box 24 and the medium classification box 25 can smoothly fall downward from the rectangular groove into the collection device, thereby improving practicality.

[0046] Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that the collecting trough plate 8 is made of 45 steel, and the upper surface of the collecting trough plate 8 is made of polypropylene.

[0047] In this embodiment, the material of the collecting trough plate 8 is 45 steel, which improves the mechanical properties of the collecting trough plate 8 and is suitable for moving parts with high strength. The polypropylene on the surface of the collecting trough plate 8 has good physical properties and durability, effectively protects the bolts and facilitates storage and transportation.

[0048] The working principle and use process of this utility model:

[0049] The worker opens the No. 3 motor 35, the No. 3 motor 35 drives the threaded rod 34 to rotate, the threaded rod 34 drives the base 33 to move and the whole component on the top of the base 33 to move, the distance between the base 33 and the collecting box shell 1 is adjusted, the bolt falling time and the collecting device are connected, at this time, the cold header 37 starts to work through the control of the controller 29, the processed bolt is discharged from the discharge port 38, then the No. 2 motor 22 is opened, the output end of the No. 2 motor 22 drives the No. 2 gear 27 to rotate, the No. 2 gear 27 and the No. 2 rack 28 are meshed and driven, the No. 2 rack 28 drives the whole component fixedly connected with it to move left and right, the connection of different classification devices on the No. 2 rack 28 is completed, the classification of different types of bolts is completed, finally the bolt falls into the inside of the collecting box 4, the collecting groove plate 8 in the inside of the collecting box 4 is subjected to the gravity of the bolt, the collecting groove plate 8 moves downward, at the same time, the falling height of the bolt can be reduced as much as possible, the collision and damage of the bolt and the noise generated are avoided, the collecting groove plate 8 is connected with the connecting piece 14 and the sliding block 16 to compress the spring 18, when the number of the bolts on the collecting groove plate 8 is more, the collecting groove plate 8 moves downward more, the more bolts are collected, when the No. 1 motor 2 is rotated, the output end of the No. 1 motor 2 drives the No. 1 gear 3 to rotate, the No. 1 gear 3 and the No. 1 rack 7 are meshed and driven, the whole component connected with the No. 1 rack 7 moves left and right, the replacement of the collecting box 4 is completed.

[0050] The above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A cold heading machine for bolt production, comprising a collection box housing (1), characterized in that: A bottom plate (5) is fixedly installed inside the collection box housing (1), a limit block (6) is fixedly installed on the top of the bottom plate (5), a collection box (4) located inside the collection box housing (1) is slidably installed above the limit block (6), a collection slot plate (8) is slidably installed inside the collection box (4), connecting rods (17) are fixedly installed on both sides of the bottom end of the collection box (4), a sliding block (16) is sleeved on the surface of the connecting rod (17), and a sliding block (16) is sleeved on the surface of the connecting rod (17) A spring (18) is provided, a No. 2 fixed block (19) is fixedly installed on the top of the slider (16), a No. 2 rotating rod (15) is rotatably connected between the No. 2 fixed blocks (19), a No. 1 fixed block (12) is fixedly installed on the bottom of the collecting tank plate (8), a No. 1 rotating rod (13) is rotatably connected between the No. 1 fixed blocks (12), a connecting piece (14) is sleeved on the surface of the No. 1 rotating rod (13), and the connecting piece (14) is sleeved on the surface of the No. 2 rotating rod (15) on the side away from the No. 1 rotating rod (13).

2. A cold heading machine for bolt production according to claim 1, characterized in that: A second bottom plate (20) is fixedly mounted on the top of the collection box housing (1), a baffle (21) is fixedly mounted on the top of the second bottom plate (20), a large classification box (23) located above the second bottom plate (20) is movably mounted inside the baffle (21), a connecting block (26) is fixedly mounted on the right side of the large classification box (23), a small classification box (24) is fixedly mounted on the right side of the connecting block (26), a medium classification box (25) is fixedly mounted on the right side of the small classification box (24), the medium classification box (25) and the small classification box (24) are fixedly connected by the connecting block (26), and the baffle (21) is fixedly mounted on the top of the collection box housing (1). 1) is fixedly mounted on the outer wall of the second motor (22), the output end of the second motor (22) is fixedly connected to the second gear (27) located on the inner wall of the baffle (21), the side of the small classification box (24) is fixedly mounted with a second rack (28), the second rack (28) and the second gear (27) are meshing transmission, a blocking block (30) is fixedly mounted on the inner wall of the small classification box (24), two cylindrical grooves are symmetrically opened in the small classification box (24), a first rotating device (31) is rotatably mounted inside the cylindrical groove, and a second rotating device (32) is rotatably mounted inside the medium classification box (25).

3. The cold heading machine for bolt production according to claim 1, characterized in that: A No. 1 motor (2) is fixedly mounted on the outside of the collection box housing (1); an output end of the No. 1 motor (2) is fixedly connected to a No. 1 gear (3) located on the inner wall of the collection box housing (1); a No. 1 rack (7) is slidably mounted inside the collection box housing (1); the No. 1 rack (7) is fixedly connected to the collection box (4), and the No. 1 rack (7) and the No. 1 gear (3) are meshed transmission.

4. The cold heading machine for bolt production according to claim 1, characterized in that: A threaded rod (34) is rotatably mounted on the side of the collection box housing (1), a base (33) is sleeved and mounted on the outer surface of the threaded rod (34), and a third motor (35) is fixedly mounted on the end of the threaded rod (34) away from the collection box housing (1).

5. A cold heading machine for bolt production according to claim 4, characterized in that: A cold heading machine (37) is fixedly mounted on the top of the base (33), a door (36) is rotatably mounted on the side of the cold heading machine (37), a discharge port (38) located above the collection box housing (1) is fixedly mounted on the bottom of the cold heading machine (37), and a controller (29) is fixedly mounted on the top of the cold heading machine (37).

6. The cold heading machine for bolt production according to claim 1, characterized in that: A handle (9) is fixedly mounted on the top of the collection box (4), and the surface of the handle (9) is made of ABS plastic.

7. The cold heading machine for bolt production according to claim 1, characterized in that: A card frame (10) is fixedly mounted on the left side of the collection box (4), and a card slot (11) is fixedly mounted on the right side of the collection box (4).

8. The cold heading machine for bolt production according to claim 2, characterized in that: The side shape of the blocking block (30) is triangular, and a rubber pad is fixedly installed on the inner wall of the cylindrical groove.

9. The cold heading machine for bolt production according to claim 2, characterized in that: A rectangular groove is formed on the upper surface of the collection box shell (1), and the top of the rectangular groove is aligned and connected with the bottom of the large classification box (23), the small classification box (24) and the medium classification box (25).

10. The cold heading machine for bolt production according to claim 1, characterized in that: The collecting trough plate (8) is made of 45 steel, and the upper surface of the collecting trough plate (8) is made of polypropylene.

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