Cold heading device for punching end face of nail to be hollow

Abstract

The utility model discloses a cold heading device for punching the end face of a nail to be hollow, which comprises a nail punching hollow forming mechanism, a stripping mechanism, a forming through-out mechanism and a stripping through-out mechanism which are positioned on a table body, and a punching needle is fixed at the front end of a punching rod of the nail punching hollow forming mechanism. A punching rod is pushed through a screw on the forming and passing-out mechanism to enable a punching needle to punch the end face of a nail in the movable die to form a hollow part, the punching needle pushes the nail out of the movable die by a small section, meanwhile, a cam of the stripping mechanism rotates to drive a transmission block to push a pressing plate to enable a sliding block to transversely move, and then a fork plate aligns to and forks the head of the nail. And then a push rod of the stripping and discharging mechanism pushes a sliding block to enable a fork plate to be pulled out of the nail in the movable mold, a punching rod retreats through elastic reset, a punching needle retreats from the nail, a sliding block base and the push rod respectively retreat through elastic reset, the sliding block retreats through elastic reset to enable the fork plate to reset, and finally punching and hollow forming and stripping of the nail are completed. The device is ingenious and compact in structural design and high in production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of local improved design of cold heading machines, in particular to a cold heading device used for punching the hollow of the end face of a nail. Background Art

[0002] A cold heading machine is a device that cuts and cold-extrudes processed metal wire, forming it into a cold stamped shape within a die. It is used to produce a variety of standard and non-standard fasteners. Wire can be cold-stamped into a variety of shapes. For nail tail punching, the conventional cold heading process involves multiple power mechanisms working together, resulting in a relatively complex overall structure and high manufacturing costs.

[0003] In the prior art, the patent with announcement number CN207806333U discloses a movable die set for punching holes at the tail of a bolt, comprising a fixed die shell, in which a die core, a spring, a stripping sleeve, a T-shaped pad, a punching ejector, and a stripping ejector are arranged. The die core is arranged in the left part of the fixed die shell, a die cavity is arranged in the middle of the die core, a T-shaped pad is arranged in the right part of the fixed die shell, the right end of the punching ejector is located in the T-shaped pad, and the left end is located in the die cavity of the die core. The stripping sleeve is sleeved on the outside of the punching ejector, the spring is located between the die core and the T-shaped pad and surrounds the outside of the punching ejector, and the stripping ejector passes through the T-shaped pad and contacts the right end of the stripping sleeve. The movable die set for punching holes at the tail of a bolt described in this utility model can realize continuous punching and forming in one step during the cold heading process, and no turning or punching by a punch press is required in the subsequent process, which saves costs, improves efficiency, stabilizes quality, and ensures product consistency.

[0004] The patent with announcement number CN215279697U discloses a cold heading deep hole forming equipment, which includes a main table, a flywheel, a crankshaft, a connecting rod, a slide, a punching rod, a mold, a product ejection mechanism, and a stripper plate. The crankshaft is arranged on the main table, one end of the crankshaft is connected to the flywheel, the connecting rod is connected to the crankshaft, and a slide is provided on the connecting rod, and a punching rod is provided on the slide. The main table is also provided with a stripper device, and the stripper device includes a stripper plate, a limit block for limiting the stripper plate, and a guide shaft for guiding the stripper plate. The stripper plate is arranged between the punching rod and the mold, and the stripper plate is provided with a punching rod hole for the punching rod to pass through. The cold heading deep hole forming equipment obtained by the utility model, the connecting rod and the slide are convenient for processing, installation, and later maintenance, and are convenient for stripping. The stripper device is simple, reliable, and practical.

[0005] In order to solve one of the above problems, the present application provides a cold heading device for hollowing the end face of a nail. Utility Model Content

[0006] The utility model aims to solve the problems existing in the prior art and proposes a cold heading device for punching a hollow at the end face of a nail.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a cold heading device for punching a hollow end face of a nail, comprising a nail punching hollow forming mechanism located on a platform, the nail punching hollow forming mechanism comprising a die seat and a first fixed sleeve fixed on the platform, a movable die slidably mounted in the die seat, a through cavity processed on the movable die, a nail and a punching needle arranged oppositely are placed in the through cavity, one end of the punching needle is fixed on the punching rod, the punching rod is elastically sleeved in the first fixed sleeve, a movable sleeve is provided in the first fixed sleeve, the movable sleeve is located outside the punching rod and elastically contacts one end of the movable die;

[0008] The stripping mechanism includes a rotatable transmission block and a fixed linear bearing on the platform, one end of the transmission block cooperates with the cam to provide power, the other end of the transmission block abuts against the pressure plate, a first shaft core is provided in a movable sleeve in the linear bearing, one end of the first shaft core is elastically connected to the pressure plate, and the other end of the first shaft core is fixed to the slider seat, a sliding block that can be elastically reset is slidably provided on the slider seat, and a fork plate is provided on the sliding block, which cooperates with the side of the movable mold to clamp and remove nails;

[0009] The forming and discharging mechanism includes a push block rotatable on the platform, one end of the push block is provided with a third screw, the third screw is arranged opposite to the punch rod, and the other end of the push block is connected to the first screw;

[0010] The material removal and discharge mechanism includes a second fixed sleeve fixed on the platform and a rotatable second push plate. A push rod is elastically installed in the second fixed sleeve. The push rod and the sliding block are arranged opposite to each other. A fourth screw is provided at one end of the second push plate. The fourth screw and the push rod are arranged opposite to each other. The other end of the second push plate is hinged to the first screw and the second screw at the same time. The second screw is connected to the eccentric wheel. The eccentric wheel transmits power to make the push block and the second push plate rotate synchronously, so that the punch rod drives the punch needle to move in a straight line and the push rod drives the sliding block to slide.

[0011] Furthermore, the nail punching hollow forming mechanism described above also includes a first push plate hingedly connected to the platform body, one end of the first push plate elastically abuts against the platform body, and the other end of the first push plate is sleeved on the punch rod and elastically abuts against the end of the movable sleeve.

[0012] Furthermore, the first fixed sleeve as described above is processed with a lower open cavity, the punch rod located in the lower open cavity is movably sleeved with the end of the first push plate and a fixed ring, and a first compression spring is provided between the end of the first push plate and the ring, and the punch rod between the end of the first push plate and the movable mold is sleeved with a movable sleeve.

[0013] Furthermore, the mold base as described above is provided with a first fixed block for limiting the movable mold, the ring is connected to the punch rod by a first screw, the end of the first fixed sleeve is fixed with an adjustment screw sleeve for the punch rod to pass through, the adjustment screw sleeve is provided with a nut lock, the middle part of the first push plate is hingedly mounted on the first fixed seat, the first fixed seat is arranged on the side of the platform body, the end of the first push plate is connected to a gasket by a second screw, a second compression spring is installed between the two gaskets and one of the gaskets is in contact with the side of the platform body.

[0014] Furthermore, the fork plate as described above is arranged on the second fixed block, the second fixed block is installed on the sliding block and at the same time abuts against the end of the push rod, the sliding direction of the sliding block is parallel to the linear motion direction of the push rod, and a stop block is provided on one side of the slider seat to limit the sliding of the sliding block, and the stop block and the sliding block are connected by a tension spring.

[0015] Furthermore, a first shaft core is vertically mounted on the slider seat as described above, one end of the first shaft core is connected to a pressure plate, a third compression spring is mounted on the first shaft core between the linear bearing and the pressure plate, the transmission block is hingedly mounted on the platform and a first fixed bearing and a second fixed bearing are respectively mounted at both ends of the transmission block, the first fixed bearing is in contact with the cam, the cam is mounted on the camshaft to transmit power, the camshaft is parallel to the axial direction of the second screw, and the second bearing is in contact with the pressure plate.

[0016] Furthermore, the push block as described above is hingedly mounted on the platform, a third screw is fixed to one end of the push block, the nut of the third screw faces the punch rod and the axial directions of the third screw and the punch rod coincide, the two ends of the first screw are respectively connected to the end rod bearings, and the two end rod bearings are respectively hinged to one end of the push block and one end of the second push plate.

[0017] Furthermore, the push block as described above is mounted on the second shaft core through a bushing, the second shaft core is rotatably mounted on a second fixed seat, and the second fixed seat is fixed to the side of the platform body.

[0018] Furthermore, the second push plate as described above is hingedly mounted on the platform, a third fixed block is provided at one end of the second push plate, a fourth screw is fixed on the third fixed block, the nut of the fourth screw faces the push rod and the axial direction of the fourth screw and the push rod coincide, the other end of the second push plate is hinged to the adapter block and the end rod bearing respectively, the adapter block is fixed at one end of the second screw rod, and the end rod bearing is connected to the first screw rod.

[0019] Furthermore, the second push plate as described above can be rotatably sleeved on the third shaft core, the two ends of the third shaft core are respectively fixed on the platform, one end of the push rod passes through the movable mold and is located between the movable mold and the second fixed sleeve. A fourth compression spring is sleeved on the push rod, one end of the second screw is fixed on the eccentric sleeve, and the eccentric sleeve is arranged outside the eccentric wheel.

[0020] Compared with the prior art, the beneficial effects of the present invention are: the structural design of the device is ingenious and compact, the transmission and reset components of each structure cooperate with each other, and the automatic hollowing and stripping of nails are realized, and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the nail punching and hollow forming mechanism of the present utility model;

[0023] Figure 3 This is a schematic diagram of the stripping mechanism of the present utility model;

[0024] Figure 4 Schematic diagram of the forming and discharging mechanism and the stripping and discharging mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the action of punching a hollow nail in the present invention;

[0026] Figure 6 This is a schematic diagram of the nail stripping action of the present invention.

[0027] In the figure: 1. table body; 2. first fixed sleeve; 3. punch needle; 4. punch rod; 5. movable sleeve; 6. movable mold; 7. mold base; 8. first fixed block; 9. collar; 90. nail punch hollow forming mechanism; 91. stripping mechanism; 92. forming and discharging mechanism; 93. stripping and discharging mechanism; 10. first screw; 11. first push plate; 12. first fixed seat; 13. first compression spring; 14. second compression spring; 15. washer; 16. second screw; 18. adjusting screw sleeve; 19. nut lock; 20. transmission block; 21. first fixed bearing; 22. cam; 23. second fixed bearing; 24. pressure plate; 2 5. First axis core; 26. Linear bearing; 27. Slider seat; 28. Third compression spring; 29. ​​Sliding block; 30. Second fixed block; 31. Fork plate; 32. Stop block; 33. Tension spring; 34. Push block; 35. Second axis core; 36. Second fixed seat; 37. Bushing; 38. Third screw; 39. End rod bearing; 40. First screw; 41. Second fixed sleeve; 42. Push rod; 43. Fourth compression spring; 44. Second push plate; 45. Third axis core; 46. Fourth screw; 47. Third fixed block; 48. Adapter block; 49. Fourth axis core; 50. Second screw; 51. Eccentric sleeve; 52. Eccentric wheel. DETAILED DESCRIPTION

[0028] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "fixed", "installed", "connected", "set", etc. should be understood in a broad sense. For example, when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "installed on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the two elements.

[0030] For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0031] The following will be combined with the accompanying drawings in 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.

[0032] Example 1

[0033] Reference Figure 1-6 As shown, the present invention is a cold heading device for punching a hollow nail end face, as a part of the cold heading machine structure, including a nail punching hollow forming mechanism 90, a stripping mechanism 91, a forming and discharging mechanism 92 and a stripping and discharging mechanism 93 arranged on the platform 1, as shown in FIG. Figure 1As shown, the nail punching hollow forming mechanism 90 is fixed in front of the platform body 1, the stripping mechanism 91 is arranged on the left side of the platform body 1, the stripping and discharging mechanism 93 is fixed in front of the platform body 1 and is arranged side by side with the nail punching hollow forming mechanism 90, and the forming and discharging mechanism 92 is installed in front of the platform body 1 to apply working power to the nail punching hollow forming mechanism 90, and the forming and discharging mechanism 92 and the stripping and discharging mechanism 93 share a set of power transmission components.

[0034] Specifically, the nail punching hollow forming mechanism 90 located on the platform body 1 includes a mold base 7 and a first fixed sleeve 2 fixed on the platform body 1, a movable mold 6 is slidably installed in the mold base 7, a through cavity is processed on the movable mold 6, a nail and a punching needle 3 are placed in the through cavity, one end of the punching needle 3 is fixed on the punching rod 4, the punching rod 4 is elastically sleeved in the first fixed sleeve 2, a movable sleeve 5 is provided in the first fixed sleeve 2, the movable sleeve 5 is located outside the punching rod 4 and elastically contacts one end of the movable mold 6; the stripping mechanism 91 includes a rotatable transmission block 20 and a fixed linear bearing 26 on the platform body 1, one end of the transmission block 20 cooperates with the cam 22 to provide power, the other end of the transmission block 20 contacts the pressure plate 24, a first shaft core 25 is movably sleeved in the linear bearing 26, one end of the first shaft core 25 is elastically connected to the pressure plate 24, and the other end of the first shaft core 25 is fixed on the slider seat 27, and a sliding block 29 that can be elastically reset is slidably provided on the slider seat 27. The sliding block 29 is provided with a fork plate 31, which cooperates with the side of the movable mold 6 to clamp and remove the nails; the molding and discharging mechanism 92 includes a push block 34 rotatable on the platform body 1, one end of the push block 34 is provided with a third screw 38, the third screw 38 is arranged opposite to the punch 4, and the other end of the push block 34 is connected to the first screw 40; the stripping and discharging mechanism 93 includes a second fixed sleeve 41 fixed on the platform body 1 and a rotatable second push plate 44, the second fixed sleeve 4 1 is elastically installed with a push rod 42, which is arranged opposite to the sliding block 29. One end of the second push plate 44 is provided with a fourth screw 46, which is arranged opposite to the push rod 42. The other end of the second push plate 44 is hinged to the first screw 40 and the second screw 50. The second screw 50 is connected to the eccentric wheel 52. The eccentric wheel 52 transmits power to make the push block 34 and the second push plate 44 rotate synchronously, thereby making the punch rod 4 drive the punch needle 3 to move linearly and the push rod 42 push the sliding block 29 to slide.

[0035] Example 2

[0036] Reference Figure 1-6 As shown, based on the technical solution of embodiment 1, a cold heading device for punching a hollow end face of a nail is provided. Figure 2As shown, the nail punching hollow forming mechanism 90 also includes a first push plate 11 hingedly connected to the platform body 1. One end of the first push plate 11 elastically contacts the platform body 1, and the other end of the first push plate 11 is sleeved on the punch rod 4 and elastically contacts the end of the movable sleeve 5. The front end of the punch rod 4 is fixed with a punch needle 3, which can slide within the movable sleeve 5, while the movable sleeve 5 can slide within the fixed sleeve. In addition, the first fixed sleeve 2 is machined with a lower opening. The end of the first push plate 11 and the collar 9 are movably sleeved on the punch rod 4 located in the lower opening. A first compression spring 13 is provided between the end of the first push plate 11 and the collar 9, so that the push rod 42 can elastically return to its original position after being freed from the external force applied by the third screw 38, and drive the punch needle 3 to retract from the punch hole in the end face of the nail. The punch rod 4 is sleeved with a movable sleeve 5 between the end of the first push plate 11 and the movable die 6, which acts as a contact and limiter for the movable die 6 during the punching operation.

[0037] Furthermore, the mold base 7 is provided with a first fixed block 8 for limiting the movable mold 6, that is, the first fixed block 8 is fixed above the end face of the movable mold 6 to press and limit it, the ring 9 is connected to the punch rod 4 through the first screw 10, and the end of the first fixed sleeve 2 is fixed with an adjustment screw sleeve 18 for the punch rod 4 to pass through, and the adjustment screw sleeve 18 is provided with a nut lock 19. The middle part of the first push plate 11 is hingedly mounted on the first fixed seat 12, and the first fixed seat 12 is provided on the side of the platform body 1. The end of the first push plate 11 is connected to a gasket 15 by a second screw 16, and a second compression spring 14 is installed between the two gaskets 15 and one of the gaskets 15 is in contact with the side of the platform body 1, so that the first push plate 11 is elastically reset after being free from external force.

[0038] Example 3

[0039] Reference Figure 1-6 As shown, based on the technical solution of the above embodiment, a cold heading device for punching a hollow end face of a nail is provided. Figure 3As shown, the fork plate 31 is arranged on the second fixed block 30, and a concave hole is processed on the fork plate 31 to cooperate with the head of the clamping nail. The second fixed block 30 is installed on the sliding block 29 and at the same time abuts against the end of the push rod 42. The sliding direction of the sliding block 29 is parallel to the linear motion direction of the push rod 42. A stopper 32 is provided on one side of the slider seat 27 to limit the sliding of the sliding block 29. The stopper 32 and the sliding block 29 are connected by a tension spring 33, that is, one end of the tension spring 33 is fixed on the stopper 32, and the other end is fixed on the sliding block 29 for elastic reset of the sliding block 29. A small screw is also locked on the stopper 32 to limit the moving position of the sliding block 29 to prevent the sliding block 29 from moving away from the slider seat 27. In addition, a first shaft core 25 is vertically mounted on the slider seat 27, one end of the first shaft core 25 is connected to the pressure plate 24, and a third compression spring 28 is mounted on the first shaft core 25 between the linear bearing 26 and the pressure plate 24, so that the pressure plate 24 is elastically reset after the external force applied by the transmission block 20 is not applied. The transmission block 20 is hingedly mounted on the platform body 1 and a first fixed bearing 21 and a second fixed bearing 23 are respectively mounted at both ends of the transmission block 20. The first fixed bearing 21 is in contact with the cam 22, and the cam 22 is mounted on the camshaft to transmit power. The camshaft is parallel to the axial direction of the second screw 50, and the second bearing is in contact with the pressure plate 24.

[0040] like Figure 4 As shown, the push block 34 is hingedly mounted on the platform body 1, and a third screw 38 is fixed to one end of the push block 34. The nut of the third screw 38 faces the punch rod 4 and the axial direction of the third screw 38 and the punch rod 4 coincide with each other, so that the force on the punch rod 4 is stable. The two ends of the first screw 40 are respectively connected to the end rod bearing 39, and the two end rod bearings 39 are respectively hinged to one end of the push block 34 and one end of the second push plate 44. Specifically, the push block 34 is mounted on the second shaft core 35 through the bushing 37, and the second shaft core 35 is rotatably mounted on the second fixed seat 36, that is, the hole-shaft fits to achieve hinged installation, and the second fixed seat 36 is fixed to the side of the platform body 1.

[0041] like Figure 4As shown, the second push plate 44 is hingedly mounted on the platform body 1, and a third fixed block 47 is provided at one end of the second push plate 44, and a fourth screw 46 is fixed on the third fixed block 47, and the nut of the fourth screw 46 faces the push rod 42 and the axial direction of the fourth screw 46 coincides with the axial direction of the push rod 42, so that the force on the push rod 42 is stable, and the other end of the second push plate 44 is hinged to the adapter block 48 and the end rod bearing 39 respectively, and the adapter block 48 is fixed to one end of the second screw rod 50 and is rotatably connected to the end of the second push plate 44 through the fourth shaft core 49, that is, the hole-axis is matched to achieve a hinged connection, and the end rod bearing 39 is connected to the first screw rod 40, so that the movement of the push block 34 and the second push plate 44 can be linked. Specifically, the second push plate 44 is rotatably sleeved on the third shaft core 45, and the two ends of the third shaft core 45 are respectively fixed on the platform body 1, that is, the hole-axis cooperates to realize hinged assembly, and one end of the push rod 42 passes through the movable mold 6 and is located between the movable mold 6 and the second fixed sleeve 41. A fourth compression spring 43 is sleeved on the push rod 42, so that the push rod 42 can quickly reset and retreat after movement. One end of the second screw 50 is fixed on the eccentric sleeve 51, and the eccentric sleeve 51 is sleeved on the outside of the eccentric wheel 52. The driving part that drives the eccentric wheel 52 to rotate is omitted in the figure.

[0042] Working principle: Figure 5-6 As shown, during normal operation, the front end of the punch rod 4 of the nail punching hollow forming mechanism 90 is fixed with a punch needle 3, and the punch rod 4 is pushed to move linearly through the third screw 38 on the forming outlet mechanism 92, so that the punch needle 3 punches the end face of the nail in the movable mold 6 to form a hollow, and the punch rod 4 will push the nail out of the movable mold 6 for a short distance (the situation caused by cold heading extrusion deformation), and at the same time, the cam 22 of the stripping mechanism 91 rotates (the driving member that drives the camshaft to rotate is omitted in the figure), driving the transmission block 20 to push the pressure plate 24, and push the slider seat 27 to move horizontally, so that the fork plate 31 The concave hole on it is aligned with the center of the movable mold 6 and forks the head of the nail, and then the push rod 42 of the stripping mechanism 93 pushes the sliding block 29 through the fourth screw 46, so that the fork plate 31 on the sliding block 29 is pulled out to complete the end face hollowing of the nail, and the punch rod 4 is quickly reset and retreated by the first compression spring 13, and the punch needle 3 is withdrawn from the nail, and the slider seat 27 and the push rod 42 are quickly reset and retreated by the third compression spring 28 and the fourth compression spring 43 respectively, and the sliding block 29 is quickly reset by the tension spring 33, so that the fork plate 31 is reset, and finally the nail hollowing forming and falling-off operation is completed.

[0043] In the device of the present invention, the assembly and matching relationship of the various components involved, the screws, springs and power components and their supporting control software, etc. are existing technologies or materials. The relevant technical personnel can purchase them directly from the market or customize them according to the required product models and specifications.

[0044] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity or industrial electricity, and the main controller can be a conventional known device such as a computer that plays a control role.

[0045] The above description is only a preferred embodiment of the present invention. Common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above embodiment, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. Any person skilled in the art who is familiar with the technical field can make equivalent replacements or changes based on the technical solution and the utility model concept of the present invention within the technical scope disclosed by the present invention, and all of them should be covered by the scope of protection of the present invention.

Claims

1. A cold heading device for punching a hollow nail end face, characterized in that: The invention comprises a nail punching hollow forming mechanism (90) located on a platform body (1), wherein the nail punching hollow forming mechanism (90) comprises a mold base (7) and a first fixed sleeve (2) fixed on the platform body (1), a movable mold (6) is slidably installed in the mold base (7), a through cavity is processed on the movable mold (6), a nail and a punching needle (3) are arranged oppositely in the through cavity, one end of the punching needle (3) is fixed on the punching rod (4), the punching rod (4) is elastically sleeved in the first fixed sleeve (2), a movable sleeve (5) is provided in the first fixed sleeve (2), the movable sleeve (5) is located outside the punching rod (4) and elastically contacts one end of the movable mold (6); A stripping mechanism (91), wherein the stripping mechanism (91) includes a rotatable transmission block (20) and a fixed linear bearing (26) on the platform body (1), one end of the transmission block (20) cooperates with the cam (22) to provide power, the other end of the transmission block (20) abuts against the pressure plate (24), a first shaft core (25) is movably sleeved in the linear bearing (26), one end of the first shaft core (25) is elastically connected to the pressure plate (24), the other end of the first shaft core (25) is fixed to the slider seat (27), a sliding block (29) that can be elastically reset is slidably provided on the slider seat (27), a fork plate (31) is provided on the sliding block (29), and the fork plate (31) cooperates with the side of the movable mold (6) to clamp and remove nails; A forming and discharging mechanism (92) includes a push block (34) rotatable on the platform body (1), one end of the push block (34) is provided with a third screw (38), the third screw (38) is arranged opposite to the punch (4), and the other end of the push block (34) is connected to the first screw (40); The material removal mechanism (93) includes a second fixed sleeve (41) fixed on the platform body (1) and a rotatable second push plate (44), a push rod (42) is elastically installed in the second fixed sleeve (41), the push rod (42) is arranged opposite to the sliding block (29), one end of the second push plate (44) is provided with a fourth screw (46), the fourth screw (46) is arranged opposite to the push rod (42), the other end of the second push plate (44) is hinged to the first screw (40) and the second screw (50), the second screw (50) is connected to the eccentric wheel (52), the eccentric wheel (52) transmits power to make the push block (34) and the second push plate (44) rotate synchronously, thereby making the punch rod (4) drive the punch needle (3) to move linearly and the push rod (42) push the sliding block (29) to slide.

2. A cold heading device for hollowing the end face of a nail according to claim 1, characterized in that: The nail punching hollow forming mechanism (90) also includes a first push plate (11) hingedly connected to the platform body (1), one end of the first push plate (11) elastically abuts against the platform body (1), and the other end of the first push plate (11) is sleeved on the punching rod (4) and elastically abuts against the end of the movable sleeve (5).

3. A cold heading device for hollowing the end face of a nail according to claim 2, characterized in that: The first fixed sleeve (2) is processed with a lower opening cavity, and the punch rod (4) located in the lower opening cavity is movably sleeved with the end of the first push plate (11) and a collar (9) fixed thereto, and a first compression spring (13) is provided between the end of the first push plate (11) and the collar (9), and the punch rod (4) between the end of the first push plate (11) and the movable mold (6) is sleeved with a movable sleeve (5).

4. A cold heading device for hollowing the end face of a nail according to claim 3, characterized in that: The mold base (7) is provided with a first fixed block (8) for limiting the movable mold (6), the collar (9) is connected to the punch rod (4) through a first screw (10), the end of the first fixed sleeve (2) is fixed with an adjustment screw sleeve (18) for the punch rod (4) to pass through, and the adjustment screw sleeve (18) is provided with a nut lock (19), the middle part of the first push plate (11) is hingedly installed on the first fixed seat (12), the first fixed seat (12) is provided on the side of the platform body (1), the end of the first push plate (11) is connected to a gasket (15) through a second screw (16), a second compression spring (14) is installed between the two gaskets (15), and one of the gaskets (15) is in contact with the side of the platform body (1).

5. A cold heading device for hollowing the end face of a nail according to claim 1, characterized in that: The fork plate (31) is arranged on the second fixed block (30), and the second fixed block (30) is installed on the sliding block (29) and at the same time abuts against the end of the push rod (42). The sliding direction of the sliding block (29) is parallel to the linear motion direction of the push rod (42). A stopper (32) for limiting the sliding of the sliding block (29) is provided on one side of the slider seat (27), and the stopper (32) and the sliding block (29) are connected by a tension spring (33).

6. A cold heading device for hollowing the end face of a nail according to claim 5, characterized in that: A first shaft core (25) is vertically mounted on the slider seat (27), one end of the first shaft core (25) is connected to the pressure plate (24), a third compression spring (28) is sleeved on the first shaft core (25) located between the linear bearing (26) and the pressure plate (24), the transmission block (20) is hingedly mounted on the platform body (1), and a first fixed bearing (21) and a second fixed bearing (23) are respectively mounted on both ends of the transmission block (20), the first fixed bearing (21) is in contact with the cam (22), the cam (22) is mounted on the camshaft to transmit power, the camshaft is parallel to the axial direction of the second screw (50), and the second bearing is in contact with the pressure plate (24).

7. A cold heading device for hollowing the end face of a nail according to claim 1, characterized in that: The push block (34) is hingedly mounted on the platform body (1), and a third screw (38) is fixed to one end of the push block (34), the nut of the third screw (38) faces the punch rod (4) and the axial direction of the third screw (38) and the punch rod (4) coincide with each other, and the two ends of the first screw rod (40) are respectively connected to the end rod bearings (39), and the two end rod bearings (39) are respectively hinged to one end of the push block (34) and one end of the second push plate (44).

8. A cold heading device for hollowing the end face of a nail according to claim 7, characterized in that: The push block (34) is mounted on the second shaft core (35) through a bushing (37). The second shaft core (35) is rotatably mounted on a second fixed seat (36). The second fixed seat (36) is fixed to the side of the platform body (1).

9. A cold heading device for hollowing the end face of a nail according to claim 1, characterized in that: The second push plate (44) is hingedly mounted on the platform body (1), and a third fixing block (47) is provided at one end of the second push plate (44). A fourth screw (46) is fixed on the third fixing block (47). The nut of the fourth screw (46) faces the push rod (42) and the axial direction of the fourth screw (46) and the push rod (42) coincide. The other end of the second push plate (44) is hingedly connected to the adapter block (48) and the end rod bearing (39), respectively. The adapter block (48) is fixed to one end of the second screw rod (50), and the end rod bearing (39) is connected to the first screw rod (40).

10. A cold heading device for hollowing the end face of a nail according to claim 9, characterized in that: The second push plate (44) is rotatably sleeved on the third shaft core (45), and the two ends of the third shaft core (45) are respectively fixed on the platform body (1). One end of the push rod (42) passes through the movable mold (6) and is located between the movable mold (6) and the second fixed sleeve (41). A fourth compression spring (43) is sleeved on the push rod (42). One end of the second screw (50) is fixed on the eccentric sleeve (51), and the eccentric sleeve (51) is sleeved outside the eccentric wheel (52).

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