A punching jig for watchband production

Abstract

The utility model discloses a punch jig for watchband production, including base, support plate, mounting seat, locating seat, punch, drive mechanism, blow nozzle, the mounting seat is opened with the waste through -hole, the waste space is formed to the below of mounting seat, the locating seat is equipped with the recessed die through -hole, the working end face of punch is designed as the curve of the periphery convex middle concave, to make the working end face of punch form the cutting edge corresponding with the punch shape, when punching, the cutting edge of punch contacts with watchband first, because the cutting edge is sharp, like this can cut open very easily, will not form burrs in the orifice, promotes the wearing experience of watchband, avoids secondary processing deburring, when punch completes the punching on watchband, will continue to move down and pass through recessed die through -hole and waste through -hole, pushes the waste to waste space, at this moment, there can be some waste and get stuck in punch end face, in order to guarantee continuous work, blow nozzle blows to punch end face, utilizes the airflow and blows, can easily blow off the waste.

Description

Technical Field

[0001] This utility model relates to the field of watch strap manufacturing technology, and in particular to a punching fixture for watch strap manufacturing. Background Technology

[0002] Watches are common everyday items, typically consisting of a watch face and a strap. Modern watch straps, besides their wearing function, also serve a decorative purpose. They are usually made of plastic, and we need to punch holes in them. In the watch strap punching process, traditional punching fixtures generally use flat-end punches for cutting. During punching, material tearing causes burrs on the hole edges, requiring secondary grinding (although some processes don't require grinding), increasing process costs. Therefore, it is necessary to propose a new solution to address these problems. Utility Model Content

[0003] In view of the above, the present invention addresses the deficiencies of the prior art and its main objective is to provide a punching fixture for watch strap production, which solves the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A punching fixture for watch strap production includes a base, a support plate, a mounting base, a positioning base for positioning the watch strap to be punched, a punch for punching holes in the watch strap, a drive mechanism for driving the punch to move up and down, and an air nozzle for blowing off waste material on the punch.

[0006] The support plate is mounted on the base, the mounting seat is mounted on the top of the support plate, the mounting seat has a waste through hole for waste to fall into, a waste space is formed below the mounting seat, the positioning seat is mounted on the mounting seat, and the positioning seat has a die through hole corresponding to the punch.

[0007] The working end face of the punch is a curved surface with a convex periphery and a concave center, so that the working end face of the punch forms a cutting edge corresponding to the shape of the punch hole.

[0008] As a preferred embodiment, the mounting base has a mounting groove, and the positioning seat is disposed in the mounting groove and fixed by screws.

[0009] As a preferred embodiment, there are two support plates facing each other, the mounting base is mounted on top of the two support plates, and the waste space is formed between the two support plates.

[0010] As a preferred embodiment, the air nozzle is a wide-angle air nozzle, which is disposed in the waste space and tilted upwards to align with the waste through hole.

[0011] As a preferred embodiment, the output end of the drive mechanism is connected to a push plate, and the fixed end of the punch is connected to a fixed seat, which is detachably connected to the push plate by screws.

[0012] As a preferred embodiment, the bottom of the push plate is connected to a pressure plate that can move up and down, and a spring is provided between the push plate and the pressure plate to ensure that the pressure plate always has a downward pressing tendency.

[0013] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, its main features are:

[0014] The working face of the punch is designed as a curved surface with a convex periphery and a concave center, so that the working face of the punch forms a cutting edge corresponding to the shape of the punch hole. An air nozzle is added. During punching, the cutting edge of the punch first contacts the watch strap. Because the cutting edge is sharp, it is easy to cut through and no burrs are formed at the hole opening, improving the wearing experience of the watch strap and avoiding secondary processing to remove burrs. After the punch completes the punching on the watch strap, it will continue to move downwards through the die through hole and the scrap through hole, pushing the scrap into the scrap space. At this time, some scrap may be stuck on the end face of the punch. In order to ensure continuous operation, the air nozzle blows air towards the end face of the punch. The airflow can easily blow the scrap off.

[0015] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure from another perspective of an embodiment of this utility model;

[0018] Figure 3 This is a partial structural schematic diagram of an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the mounting base and positioning plate structure according to an embodiment of the present utility model;

[0020] Figure 5 This is another structural schematic diagram of an embodiment of the present utility model;

[0021] Figure 6 yes Figure 5 Side view;

[0022] Figure 7 This is a schematic diagram of the punch structure according to an embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Base; 20. Support plate; 30. Mounting seat; 31. Scrap hole; 32. Scrap space; 33. Mounting groove; 40. Positioning seat; 41. Die hole; 50. Punch; 51. Blade; 52. Fixing seat; 60. Drive mechanism; 61. Push plate; 62. Pressure plate; 63. Spring; 70. Air nozzle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Please see Figures 1 to 7 This utility model provides a punching fixture for watch strap production, including a base 10, a support plate 20, a mounting base 30, a positioning base 40 for positioning the watch strap to be punched, a punch 50 for punching holes in the watch strap, a driving mechanism 60 for driving the punch 50 to move up and down, and an air nozzle 70 for blowing off waste material on the punch 50.

[0028] The support plate 20 is disposed on the base 10, the mounting seat 30 is disposed on the top of the support plate 20, the mounting seat 30 is provided with a waste through hole 31 for waste to fall, a waste space 32 is formed below the mounting seat 30, the positioning seat 40 is disposed on the mounting seat 30, and the positioning seat 40 is provided with a die through hole 41 corresponding to the punch 50.

[0029] The working end face of the punch 50 is a curved surface with a convex periphery and a concave center, so that the working end face of the punch 50 forms a cutting edge 51 corresponding to the shape of the punch hole.

[0030] During operation, the watch strap to be punched is placed on the positioning seat 40. Then, the drive mechanism 60 drives the punch 50 to move downward, allowing the punch 50 to punch holes in the watch strap. During punching, the cutting edge 51 of the punch 50 first contacts the watch strap. Because the cutting edge 51 is sharp, it is easy to cut through without forming burrs at the hole opening, improving the wearing experience of the watch strap and avoiding secondary processing to remove burrs. When the punch 50 completes punching on the watch strap, it will continue to move downward through the die through hole 41 and the scrap through hole 31, pushing the scrap into the scrap space 32. At this time, some scrap may be stuck on the end face of the punch 50. In order to ensure continuous operation, the air nozzle 70 blows air towards the end face of the punch 50. The airflow can easily blow the scrap off. It should be noted that the working switch of the air nozzle 70 can be manually controlled or inductively controlled, or it can be set to mechanically trigger operation when the punch 50 reaches the waste space 32. There are no limitations. Also, the waste is usually not very firmly stuck on the end face of the punch 50 and can be easily dropped with a light touch.

[0031] Furthermore, the mounting base 30 has a mounting groove 33, and the positioning base 40 is disposed in the mounting groove 33 and fixed by screws. In this way, the positioning base 40 can be quickly replaced, significantly improving the adaptability of the fixture to different sizes of watch straps.

[0032] Furthermore, there are two support plates 20 facing each other, the mounting base 30 is mounted on the top of the two support plates 20, and the waste space 32 is formed between the two support plates 20.

[0033] Furthermore, the air nozzle 70 is a wide-angle nozzle, which is set in the waste space 32 and tilted upward to align with the waste through hole 31; the wide-angle nozzle tilts upward to align with the waste through hole 31, forming an airflow field covering the end face of the punch 50, effectively solving the problem of blind spots covered by conventional vertical air blowing; the airflow generates an oblique component force on the waste, significantly improving the peeling efficiency.

[0034] Furthermore, the output end of the drive mechanism 60 is connected to a push plate 61, and the fixed end of the punch 50 is connected to a fixed seat 52. The fixed seat 52 is detachably connected to the push plate 61 by screws.

[0035] Furthermore, the bottom of the push plate 61 is connected to a vertically movable pressure plate 62, and a spring 63 is provided between the push plate 61 and the pressure plate 62 to ensure that the pressure plate 62 always has a downward pressing tendency. During operation, the drive mechanism 60 drives the push plate 61 to move downward, and the pressure plate 62 first presses on the watch strap of the positioning seat 40, so that the watch strap can be flattened and positioned as much as possible. Then, driven by the drive mechanism 60, the push plate 61 continues to move downward, and the punch 50 punches a hole in the watch strap. After that, the punch 50 pushes the waste material into the waste space 32 to complete the punching.

[0036] Additionally, it should be noted that the aforementioned drive mechanism 60 is a conventional structure in the prior art, and there are many similar structures, so it will not be described in detail here.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A punching fixture for watch strap production, characterized in that, It includes a base (10), a support plate (20), a mounting base (30), a positioning base (40) for positioning the watch strap to be punched, a punch (50) for punching holes in the watch strap, a drive mechanism (60) for driving the punch (50) to move up and down, and an air nozzle (70) for blowing off the waste on the punch (50). The support plate (20) is disposed on the base (10), the mounting seat (30) is disposed on the top of the support plate (20), the mounting seat (30) is provided with a waste through hole (31) for waste to fall into, a waste space (32) is formed below the mounting seat (30), the positioning seat (40) is disposed on the mounting seat (30), and the positioning seat (40) is provided with a die through hole (41) corresponding to the punch (50); The working end face of the punch (50) is a curved surface with a convex periphery and a concave center, so that the working end face of the punch (50) forms a cutting edge (51) corresponding to the shape of the punch hole.

2. The punching fixture for watch strap production according to claim 1, characterized in that, The mounting base (30) has a mounting groove (33), and the positioning base (40) is disposed in the mounting groove (33) and fixed by screws.

3. The punching fixture for watch strap production according to claim 1, characterized in that, The support plates (20) are two opposite to each other, the mounting base (30) is mounted on the top of the two support plates (20), and the waste space (32) is formed between the two support plates (20).

4. The punching fixture for watch strap production according to claim 1, characterized in that, The air nozzle (70) is a wide-angle nozzle, which is set in the waste space (32) and tilted upward to align with the waste through hole (31).

5. A punching fixture for watch strap production according to claim 1, characterized in that, The output end of the drive mechanism (60) is connected to a push plate (61), and the fixed end of the punch (50) is connected to a fixed seat (52). The fixed seat (52) is detachably connected to the push plate (61) by screws.

6. A punching fixture for watch strap production according to claim 5, characterized in that, The bottom of the push plate (61) is connected to a pressure plate (62) that can move up and down, and a spring (63) is provided between the push plate (61) and the pressure plate (62) to make the pressure plate (62) always have a downward pressing tendency.

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