A punching jig and a punching device

Abstract

The utility model discloses a kind of punching jig and punching equipment, the punching jig includes fixed seat, positioning plate, sliding seat, punching plate and jacking mechanism;The positioning plate is fixed on fixed seat, the sliding seat is located above positioning plate and is slidably connected with fixed seat, the punching plate is connected at the bottom of sliding seat, multiple avoiding holes for avoiding plastic parts are provided on the positioning plate, and multiple the avoiding hole is downwardly through positioning plate, the bottom surface of punching plate is protruded with multiple blades, multiple the blade and multiple avoiding hole one-to-one correspondence, the blade is annular structure with center hole, the shape of the center hole is same with the shape of the part required to punch of plastic part, and the outer shape size of the outer side of the blade gradually narrows from top to bottom, the jacking mechanism is located below positioning plate and is fixedly connected with fixed seat;The present application mainly solves how to improve the technical problem of the quality and efficiency of the punching of the sheet structure containing multiple plastic parts.

Description

Technical Field

[0001] This utility model relates to the technical field of punching, and in particular to a punching fixture and punching equipment. Background Technology

[0002] Please see Figure 1 To improve the production efficiency of plastic parts 20, currently, most methods first injection mold a sheet structure containing multiple plastic parts in a mold. This sheet structure can be understood as including a sheet body 10 and multiple plastic parts 20 integrally injection molded with the sheet body 10. Then, the sheet structure is punched to separate the multiple plastic parts 20 from the sheet body 10. Currently, the blades used for punching plastic parts 20 are mostly hollow cylindrical structures. These hollow cylindrical blades have relatively large wall thicknesses, and after punching, the edges of the plastic parts 20 often exhibit defects such as burrs, breakage, or stringing. These defects are more pronounced when the plastic parts 20 are small. Furthermore, currently, after punching, the plastic parts 20 often stick to the mold and are difficult to remove, resulting in low punching efficiency. Therefore, improvements to the existing technology are needed. Utility Model Content

[0003] This utility model provides a punching fixture and punching equipment, which mainly solves the technical problem of how to improve the quality and efficiency of punching sheet structures containing multiple plastic parts.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A punching fixture includes a fixed base, a positioning plate, a slide, a punching plate, and a lifting mechanism;

[0006] The positioning plate is fixed to the fixed base. The slide is located above the positioning plate and is slidably connected to the fixed base in the longitudinal direction. The punching plate is connected to the bottom of the slide. The positioning plate is provided with a plurality of clearance holes for avoiding plastic parts, and the plurality of clearance holes penetrate downward through the positioning plate. The bottom surface of the punching plate is provided with a plurality of blades, and the plurality of blades correspond one-to-one with the plurality of clearance holes. The blade is a ring-shaped structure with a central hole. The shape of the central hole is the same as the shape of the part of the plastic part that needs to be punched. The outer dimensions of the blade gradually narrow from top to bottom. The lifting mechanism is located below the positioning plate and is fixedly connected to the fixed base. The lifting mechanism is used to push the plurality of plastic parts located in the clearance holes upward.

[0007] In one of the technical solutions, a plurality of elastic elements are connected between the slide and the punching plate. The punching plate and the slide are slidably connected in the longitudinal direction. The punching plate has a downward sliding tendency relative to the slide due to the elastic force of the plurality of elastic elements.

[0008] In one technical solution, a limiting post is connected between the slide and the punching plate to restrict the punching plate from moving downward away from the slide, and the limiting post is fixedly connected to the punching plate to follow the punching plate in moving up and down relative to the slide.

[0009] In one of the technical solutions, the slide includes a pressure plate and a connecting plate. The connecting plate is fixed to the bottom of the pressure plate. The pressure plate and the fixed seat are slidably connected in the longitudinal direction. A plurality of elastic elements are connected between the connecting plate and the punching plate. The punching plate and the connecting plate are slidably connected in the longitudinal direction. The limiting post passes through the connecting plate.

[0010] In one of the technical solutions, the fixed base includes a base and a support base fixed above the base. The base and the slide are slidably connected in the longitudinal direction. The positioning plate is fixed on the top of the support base. The lifting mechanism is located inside the support base. The support base has a through hole in the middle to avoid the movement of the lifting mechanism.

[0011] In one of the technical solutions, the lifting mechanism includes a driver, a lifting plate, and multiple ejector pins;

[0012] Multiple ejector pins are fixed to the top of the lifting plate. The driver is fixed to the base and connected to the lifting plate. The driver is used to drive the lifting plate and multiple ejector pins to move together in the longitudinal direction. The middle part of the support base is provided with a through hole for avoiding the vertical movement of the lifting plate. Multiple ejector pins are inserted into multiple avoidance holes one by one.

[0013] In one of the technical solutions, the fixing base further includes a plurality of guide posts fixed on the base, each guide post being fitted with a spring, the slide being slidably connected to the plurality of guide posts, and the slide having an upward movement tendency relative to the base due to the elastic force of the spring, and a limiting block for preventing the slide from moving upward away from the guide post is fixed at the bottom of the guide post.

[0014] In one of the technical solutions, the top of the positioning plate is provided with a positioning groove for positioning a sheet structure containing multiple plastic parts, and the bottom of the positioning groove is provided with multiple clearance holes.

[0015] In one of the technical solutions, the edge of the positioning plate is provided with a material pick-up and drop-off notch, which is connected to the positioning groove.

[0016] This application also provides a punching device, including a punching host and a punching fixture as described in any of the above technical solutions, wherein the punching fixture is mounted on the punching host.

[0017] Compared with the prior art, the punching fixture provided by this utility model has at least the following beneficial effects:

[0018] This solution designs the outer dimensions of all blades on the punching plate to gradually narrow from top to bottom, making the blades sharper and allowing for a cleaner scraping of the outer edges of plastic parts. This prevents defects such as burrs, breakage, or stringing after punching, thus improving the punching quality of plastic parts. In addition, this solution also includes a lifting mechanism on the positioning plate, which can push multiple punched plastic parts upwards to prevent them from sticking to the positioning plate. This improves the efficiency of the operator in removing the plastic parts, thereby increasing the punching efficiency of plastic parts. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a sheet material structure containing multiple plastic parts in the background art;

[0021] Figure 2 This is a schematic diagram of the structure of a punching fixture provided in an embodiment of this application;

[0022] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 for Figure 2 The diagram shows the structure of the punching fixture behind the hidden positioning plate.

[0024] Figure 5 for Figure 2 A schematic diagram of the punching fixture shown from another angle;

[0025] Figure 6 for Figure 5 A magnified view of a section at point B.

[0026] Figure label:

[0027] 1. Fixed base; 11. Base; 12. Support base; 121. Through hole; 13. Guide post; 14. Spring; 15. Limiting block; 2. Positioning plate; 21. Positioning groove; 22. Clearance hole; 23. Material loading / unloading notch; 3. Slide; 31. Pressure plate; 32. Connecting plate; 4. Punching plate; 41. Blade; 411. Center hole; 5. Lifting mechanism; 51. Driver; 52. Lifting plate; 53. Ejector pin; 6. Elastic element; 7. Limiting post;

[0028] 10. Sheet material body; 20. Plastic parts. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] 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.

[0034] Please refer to the following: Figures 2 to 6This utility model provides a punching fixture, which mainly includes a fixed base 1, a positioning plate 2, a slide 3, a punching plate 4, and a lifting mechanism 5. The positioning plate 2 is fixed above the fixed base 1, and a positioning groove 21 is provided on the top of the positioning plate 2. The shape of this positioning groove 21 is adapted to the shape of a sheet material structure containing multiple plastic parts 20, allowing the sheet material structure to be placed on the positioning plate 2 with high positional accuracy. Multiple clearance holes 22 are provided on the groove wall of the positioning groove 21 to allow the plastic parts 20 to pass, ensuring that the sheet material structure can be placed flat within the positioning groove 21. The slide 3 is located above the positioning plate 2, and the slide 3 and the fixed base 1... The base 1 is slidably connected in the longitudinal direction. The punching plate 4 is connected to the bottom of the slide 3. The bottom surface of the punching plate 4 is provided with multiple blades 41. In fact, the multiple blades 41 correspond one-to-one with the aforementioned clearance holes 22. The blade 41 has a ring-shaped structure with a central hole 411. The shape of the central hole 411 is actually the same as the shape of the part of the plastic part 20 that needs to be punched. Moreover, the outer dimensions of the blade 41 gradually narrow from top to bottom, making the blade 41 sharper. This allows for a cleaner scraping of the outer edge of the plastic part 20, thereby preventing burrs, damage, or stringing after punching and improving the punching quality of the plastic part 20. In addition, this solution also provides a lifting mechanism 5 below the positioning plate 2. The clearance hole 22 penetrates the positioning plate 2 downwards. The lifting mechanism 5 is fixed on the fixed base 1 and is used to push the multiple plastic parts 20 that have been punched and are located in the clearance hole 22 upwards.

[0035] Taking the mouthpiece plug of an electronic atomizer (the mouthpiece plug is used to seal the vapor outlet, serving both as a dustproof function and to prevent the internal aroma from escaping) as an example, the specific application process of the punching fixture in this solution is as follows: Install the entire punching fixture onto the punching host. After connecting the power supply and corresponding air source, place the sheet material structure containing multiple mouthpiece plugs into the positioning groove 21 of the positioning plate 2, and press the sheet material structure flat by hand. Then, start the punching host. The slide 3 and the punching plate 4 move downwards under the power of the punching host. Multiple blades 41 on the punching plate 4 punch downwards the sheet body 10 of the sheet structure to separate multiple cigarette plugs from the sheet body 10. After punching, the slide 3 and the punching plate 4 are reset upwards under the power of the punching host. Then, the lifting mechanism 5 pushes multiple cigarette plugs located in the clearance hole 22 to move upwards, so that multiple cigarette plugs can be unloaded upwards, preventing the cigarette plugs from sticking to the positioning plate 2, thereby improving the efficiency of the operator in removing the cigarette plugs, and thus improving the punching efficiency of the cigarette plugs.

[0036] Please see Figure 2 or Figure 4Multiple elastic elements 6 connect the slide block 3 and the cutting plate 4. The cutting plate 4 and the slide block 3 are designed to slide together longitudinally, and the cutting plate 4, under the elastic force of the multiple elastic elements 6, has a downward sliding tendency relative to the slide block 3. This design provides a certain buffering effect during the cutting of sheet materials, and prevents overpressure on the multiple blades 41 on the cutting plate 4, thus preventing damage to the blades 41 due to overpressure, thereby improving the service life of the cutting plate 4 and reducing the replacement cost of the cutting plate 4 due to wear.

[0037] Please see Figure 2 or Figure 4 Multiple limiting posts 7 are connected between the slide block 3 and the punching plate 4. The limiting posts 7 are used to prevent the punching plate 4 from detaching downward from the slide block 3, ensuring that the punching plate 4 will not fall due to its own weight. Preferably, the limiting posts 7 are designed to be fixed on the punching plate 4 and move up and down relative to the slide block 3 together with the punching plate 4. More preferably, the slide block 3 specifically includes a pressure plate 31 and a connecting plate 32. The connecting plate 32 is fixed to the bottom of the pressure plate 31. The pressure plate 31 is slidably connected to the aforementioned fixed seat 1 in the longitudinal direction. Multiple elastic elements 6 are connected between the connecting plate 32 and the punching plate 4. The punching plate 4 is slidably connected to the connecting plate 32 in the longitudinal direction. The limiting posts 7 are inserted through the connecting plate 32. By designing the slide block 3 in separate parts, the slide block 3 can be manufactured with the advantages of low manufacturing cost and light weight. It is also convenient to install the elastic elements 6 and the limiting posts 7.

[0038] Please refer to the following: Figure 2 , Figure 4 and Figure 5 The fixed base 1 specifically includes a base 11 and a support base 12 fixed above the base 11. The base 11 is slidably connected to the pressure plate 31 mentioned above in the longitudinal direction. The positioning plate 2 mentioned above is fixed to the top of the support base 12. That is, the support base 12 plays the role of supporting the positioning plate 2 to a suitable working height. The lifting mechanism 5 mentioned above is arranged inside the support base 12. Based on this, a through hole 121 needs to be provided in the middle of the support base 12. The through hole 121 penetrates the support base 12 to prevent the lifting mechanism 5 from moving up and down, so that the lifting mechanism 5 can push the multiple plastic parts 20 above upward.

[0039] Please see Figure 4The lifting mechanism 5 specifically includes a driver 51, a lifting plate 52, and multiple ejector pins 53. The ejector pins 53 are all fixed to the top of the lifting plate 52. The driver 51 is preferably a low-cost cylinder. The driver 51 is fixed to the base 11 and connected to the lifting plate 52. The driver 51 drives the lifting plate 52 and the multiple ejector pins 53 to move longitudinally together, and the multiple ejector pins 53 are inserted one-to-one into the aforementioned multiple clearance holes 22. After the multiple plastic parts 20 are punched, the driver 51 drives the multiple ejector pins 53 to move upwards, thereby specifically realizing the function of pushing the multiple plastic parts 20 upwards.

[0040] Please see Figure 2 or Figure 4 The fixed base 1 also includes multiple guide posts 13 fixed on the base 11. Each guide post 13 is fitted with a spring 14. The pressure plate 31 of the slide 3 is slidably connected to the multiple guide posts 13 in the longitudinal direction by means of a linear bearing. Moreover, the slide 3 has an upward tendency to move relative to the base 11 due to the elastic force of the spring 14. By setting the guide posts 13, the slide 3 can slide up and down accurately and smoothly relative to the base 11, and the spring 14 can drive the slide 3 to return to its original position. In addition, a limit block 15 is fixed to the bottom of the guide post 13. This limit block 15 is used to prevent the slide 3 from detaching from the guide post 13. In fact, when the slide 3 is only subjected to its own weight and the elastic force of the spring 14, the slide 3 always presses against the limit block 15 downward under the force of the spring 14.

[0041] Please see Figure 3 The positioning plate 2 has a material loading / unloading notch 23 on its edge, which is connected to the positioning groove 21. By setting this material loading / unloading notch 23, it is easy for operators to accurately place sheet structures containing multiple plastic parts 20 into the positioning groove 21, and it is also easy for operators to remove them from the positioning groove 21. Figure 1 The sheet material body 10 shown.

[0042] This embodiment also provides a punching device, which includes a punching host and the aforementioned punching fixture. The punching fixture is mounted on the punching host, and the punching host is used to provide downward power to the slide 3. Since the punching device of this embodiment uses the aforementioned punching fixture, the punching device of this embodiment also has the advantages of high punching quality and high punching efficiency.

[0043] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A punching fixture, characterized in that, Includes a fixed base, positioning plate, slide, punching plate, and lifting mechanism; The positioning plate is fixed to the fixed base. The slide is located above the positioning plate and is slidably connected to the fixed base in the longitudinal direction. The punching plate is connected to the bottom of the slide. The positioning plate is provided with a plurality of clearance holes for avoiding plastic parts, and the plurality of clearance holes penetrate downward through the positioning plate. The bottom surface of the punching plate is provided with a plurality of blades, and the plurality of blades correspond one-to-one with the plurality of clearance holes. The blade is a ring-shaped structure with a central hole. The shape of the central hole is the same as the shape of the part of the plastic part that needs to be punched. The outer dimensions of the blade gradually narrow from top to bottom. The lifting mechanism is located below the positioning plate and is fixedly connected to the fixed base. The lifting mechanism is used to push the plurality of plastic parts located in the clearance holes upward.

2. The punching fixture as described in claim 1, characterized in that, Multiple elastic elements are connected between the slide block and the punching plate. The punching plate and the slide block are slidably connected in the longitudinal direction. The punching plate has a downward sliding tendency relative to the slide block due to the elastic force of the multiple elastic elements.

3. The punching fixture as described in claim 2, characterized in that, A limiting post is connected between the slide and the punching plate to prevent the punching plate from disengaging downward from the slide, and the limiting post is fixedly connected to the punching plate to follow the punching plate as it moves up and down relative to the slide.

4. The punching fixture as described in claim 3, characterized in that, The slide includes a pressure plate and a connecting plate. The connecting plate is fixed to the bottom of the pressure plate. The pressure plate and the fixed seat are slidably connected in the longitudinal direction. A plurality of elastic elements are connected between the connecting plate and the punching plate. The punching plate and the connecting plate are slidably connected in the longitudinal direction. The limiting post passes through the connecting plate.

5. The punching fixture as described in claim 1, characterized in that, The fixed base includes a base and a support base fixed above the base. The base and the slide are slidably connected in the longitudinal direction. The positioning plate is fixed on the top of the support base. The lifting mechanism is located inside the support base. The support base has a through hole in the middle to avoid the movement of the lifting mechanism.

6. The punching fixture as described in claim 5, characterized in that, The lifting mechanism includes a driver, a lifting plate, and multiple ejector pins; Multiple ejector pins are fixed to the top of the lifting plate. The driver is fixed to the base and connected to the lifting plate. The driver is used to drive the lifting plate and multiple ejector pins to move together in the longitudinal direction. The multiple ejector pins are inserted into the multiple clearance holes one by one.

7. The punching fixture as described in claim 5, characterized in that, The fixed base also includes a plurality of guide posts fixed on the base, each of which is fitted with a spring. The slide is slidably connected to the plurality of guide posts, and the slide has an upward tendency to move relative to the base due to the elastic force of the spring. A limiting block is fixed at the bottom of the guide post to prevent the slide from moving upward away from the guide post.

8. The punching fixture as described in claim 1, characterized in that, The top of the positioning plate is provided with a positioning groove for positioning a sheet structure containing multiple plastic parts, and the bottom of the positioning groove is provided with multiple clearance holes.

9. The punching fixture as described in claim 8, characterized in that, The edge of the positioning plate is provided with a material pick-up and drop-off notch, which is connected to the positioning groove.

10. A punching and cutting device, characterized in that, It includes a punching machine and a punching fixture as described in any one of claims 1 to 9, wherein the punching fixture is mounted on the punching machine.

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