Melamine tableware edge punching machine

Abstract

The utility model provides a melamine tableware edging machine, which relates to the technical field of melamine tableware processing, and comprises a workbench, the workbench comprises a top plate, support legs are fixed on the bottom surface of the top plate, and the outer contour of each support leg is rectangular. According to the melamine tableware edge punching machine, when a hydraulic cylinder is started, the hydraulic cylinder can push a longitudinal sliding rod and a piston A to move in a connecting cylinder through a pressing plate, then a hydraulic medium in the connecting cylinder drives a transverse sliding rod and a piston B to move, and the transverse sliding rod can drive a push plate to push the hand of a worker out of a stroke area of an upper mold; meanwhile, the positioning holes in the pressing plate are gradually close to the positioning columns, auxiliary positioning is conducted on the sliding block and the lower mold through the positioning holes and the positioning columns, if positioning is not accurate, the pressing plate can be blocked by the positioning columns, a hydraulic cylinder cannot normally move downwards, and melamine tableware is prevented from being crushed.

Description

Technical Field

[0001] This utility model relates to a punching machine, specifically a punching machine for melamine tableware, and belongs to the field of melamine tableware processing technology. Background Art

[0002] Melamine tableware is widely used in daily life due to its hardness, heat and impact resistance, and smooth appearance. The production process of melamine tableware requires a meticulous edge-punching process to ensure that the edges are flat, smooth, and burr-free.

[0003] As a key piece of equipment in this process, the edge-punching machine mainly processes the edges of tableware through high-speed impact to achieve the required dimensions and appearance. With the diversification of market demands and the improvement of production efficiency, higher requirements are being placed on the precision, stability, and production capacity of edge-punching machines.

[0004] Chinese Patent Publication CN210999095U discloses a melamine tableware edge-punching machine. This machine uses a telescopic hydraulic cylinder to drive a pressure plate downwards along a guide rod, thereby punching the edges of melamine tableware placed on a serving plate. After punching, the pressure plate cannot be pulled up; simply pulling the handle allows the slider and serving plate to be removed from the worktable, achieving rapid output. This not only saves output time but also conserves electricity for driving the telescopic hydraulic cylinder. It overcomes the problem of existing melamine tableware edge-punching machines requiring the pressure plate to be pulled up by the telescopic hydraulic cylinder before output, which repeatedly pulls up and waits, significantly extending the punching time.

[0005] The aforementioned patent describes the edge-punching process using a pressure plate and a hydraulic cylinder. However, in practical applications, it has been found that the patent does not mention any protective devices. If an operator accidentally places their hand under the pressure plate during the sliding block's insertion or removal, they may be pinched or crushed, posing a high safety risk.

[0006] Furthermore, the slider in the aforementioned patent relies on manual pushing or pulling. Without an auxiliary positioning structure or indicator, the operator may push the slider to different positions each time, resulting in inconsistent processing results. Therefore, a melamine tableware edge-trimming machine is proposed here. Utility Model Content

[0007] This utility model proposes a melamine tableware edge punching machine. By adding a protective device, the operator's hand is pushed out of the stroke area of ​​the upper mold, which effectively reduces the risk of pinching injury. At the same time, the slider is assisted in positioning to avoid crushing the melamine tableware.

[0008] This utility model is achieved through the following technical solution: a melamine tableware edge-punching machine, including a worktable, the worktable including a top plate, a support leg fixed on the bottom surface of the top plate, the outer contour of the support leg being rectangular, a mounting frame provided on the top plate, the mounting frame including a support column, the support column being fixed to the top surface of the top plate, a support plate fixed at the upper end of the support column, a hydraulic cylinder fixed on the top surface of the support plate, the output end of the hydraulic cylinder penetrating through the support plate, an edge-punching mechanism provided on the mounting frame, the edge-punching mechanism including a hydraulic cylinder and a lower mold, the output end of the hydraulic cylinder being fixed to an upper mold.

[0009] The top plate is provided with a sliding material picking assembly, which includes a sliding column fixed to the top plate, a slider slidably connected to the sliding column, and the slider is fixed to the lower mold. The bottom surface of the slider is in sliding contact with the top surface of the top plate. A positioning post is fixed on the slider. The sliding material picking assembly also includes a positioning hole opened on the pressure plate, and the inner contour of the positioning hole is larger than the outer contour of the positioning post.

[0010] The punching mechanism and the top plate are equipped with a protective mechanism. The protective mechanism includes a pressure plate fixed to the output end of the hydraulic cylinder. A longitudinal slide rod is fixed to the bottom surface of the pressure plate. The protective mechanism also includes a connecting cylinder fixed to the top plate. The longitudinal part of the connecting cylinder is slidably and sealed to the longitudinal slide rod. A piston A is fixed to one end of the longitudinal slide rod inside the connecting cylinder. The longitudinal slide rod is slidably and sealed to the longitudinal part of the connecting cylinder through the piston A. A positioning spring A is fixed on the piston A. The positioning spring A is fixed to the inner wall of the connecting cylinder through a spring seat.

[0011] The transverse portion of the connecting cylinder is slidably connected to a transverse slide rod. A piston B is fixed to one end of the transverse slide rod inside the connecting cylinder. The transverse slide rod is slidably connected to the transverse portion of the connecting cylinder through the piston B. A positioning spring B is fixed on the piston B. The positioning spring B is fixed to the inner wall of the connecting cylinder through a spring seat. A push plate is fixed on the transverse slide rod. The connecting cylinder contains hydraulic medium. A rubber pad is fixed on the push plate. The outer contour of the rubber pad is rectangular.

[0012] The horizontal portion of the connecting cylinder is fixed with a first fixing frame, which is fixed to the top plate. The vertical portion of the connecting cylinder is fixed with a second fixing frame, which is fixed to the top plate.

[0013] This utility model provides a melamine tableware edge-punching machine, which has the following beneficial effects:

[0014] 1. When the hydraulic cylinder of this melamine tableware edge-punching machine is started, the hydraulic cylinder will push the longitudinal slide rod and piston A to move in the connecting cylinder through the pressure plate. Then, the hydraulic medium inside the connecting cylinder will drive the transverse slide rod and piston B to move. The transverse slide rod will drive the push plate to push the worker's hand out of the stroke area of ​​the upper mold, effectively reducing the risk of pinching injury. At the same time, the positioning hole on the pressure plate will gradually approach the positioning post. The positioning hole and positioning post will assist in the positioning of the slider and the lower mold. If the positioning is inaccurate, the pressure plate will be obstructed by the positioning post, so that the hydraulic cylinder cannot move downward normally, thus avoiding crushing the melamine tableware. Attached Figure Description

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the pressure plate and longitudinal slide bar structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the internal structure of the transverse portion of the connecting cylinder of this utility model;

[0018] Figure 4 This is a cross-sectional view of the internal structure of the longitudinal portion of the connecting cylinder of this utility model.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Workbench; 101. Top plate; 102. Support legs;

[0021] 2. Punching mechanism; 201. Hydraulic cylinder; 202. Upper die; 203. Lower die;

[0022] 3. Protective mechanism; 301. Pressure plate; 302. Longitudinal slide bar; 3021. Piston A; 3022. Positioning spring A; 303. Connecting cylinder; 304. Transverse slide bar; 3041. Piston B; 3042. Positioning spring B; 305. Push plate; 3051. Rubber pad; 306. First fixing frame; 307. Second fixing frame;

[0023] 4. Mounting bracket; 401. Support column; 402. Support plate;

[0024] 5. Sliding material handling assembly; 501. Sliding column; 502. Sliding block; 503. Positioning column; 504. Positioning hole. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0026] Please see Figures 1-4 This utility model provides a melamine tableware edge-punching machine, including a workbench 1, a top plate 101, a support leg 102 fixed to the bottom surface of the top plate 101, the outer contour of the support leg 102 being rectangular, the support leg 102 serving a supporting function, a mounting frame 4 provided on the top plate 101, the mounting frame 4 including a support column 401, the support column 401 being fixed to the top surface of the top plate 101, a support plate 402 fixed to the upper end of the support column 401, an edge-punching mechanism 2 provided on the mounting frame 4, the edge-punching mechanism 2 including a hydraulic cylinder 201 and a lower mold 203, the output end of the hydraulic cylinder 201 being fixed to the upper mold 202, the hydraulic cylinder 201 being fixed to the top surface of the support plate 402, and the output end of the hydraulic cylinder 201 penetrating the support plate 402.

[0027] Please refer to this carefully. Figure 1 and Figure 2 A sliding material-picking assembly 5 is provided on the top plate 101. The sliding material-picking assembly 5 includes a sliding column 501 fixed to the top plate 101. A slider 502 is slidably connected to the sliding column 501. The slider 502 can slide on the sliding column 501 and is fixed to the lower mold 203. The sliding of the slider 502 will drive the lower mold 203 to move, thereby facilitating the removal of the processed melamine tableware from the lower mold 203. The bottom surface of the slider 502 slides in contact with the top surface of the top plate 101, so that the top plate 101 can support the slider 502 and the lower mold 203. A positioning post 503 is fixed on the slider 502. The sliding material-picking assembly 5 also includes a positioning hole 504 opened on the pressure plate 301. The inner contour of the positioning hole 504 is larger than the outer contour of the positioning post 503. When the hydraulic cylinder 201 drives the pressure plate 301 to descend, the positioning post 503 will be inserted into the positioning hole 504.

[0028] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4The punching mechanism 2 and the top plate 101 are provided with a protective mechanism 3. The protective mechanism 3 includes a pressure plate 301 fixed to the output end of the hydraulic cylinder 201. A longitudinal slide rod 302 is fixed to the bottom surface of the pressure plate 301. The protective mechanism 3 also includes a connecting cylinder 303 fixed to the top plate 101. The longitudinal part of the connecting cylinder 303 is in a sealed sliding connection with the longitudinal slide rod 302. A piston A3021 is fixed to one end of the longitudinal slide rod 302 located inside the connecting cylinder 303. The longitudinal slide rod 302 is in a sealed sliding connection with the longitudinal part of the connecting cylinder 303 through the piston A3021. A positioning spring A3022 is fixed on the piston A3021. The positioning spring A3022 can play a positioning role through the elastic force of the positioning spring A3022. The positioning spring A3022 is fixed to the inner wall of the connecting cylinder 303 through the spring seat.

[0029] A transverse slide rod 304 is slidably connected to the transverse portion of the connecting cylinder 303. A piston B3041 is fixed to one end of the transverse slide rod 304 inside the connecting cylinder 303. The transverse slide rod 304 is slidably connected to the transverse portion of the connecting cylinder 303 through the piston B3041. A positioning spring B3042 is fixed on the piston B3041. The positioning spring B3042 can play a positioning role through the elastic force of the positioning spring. The positioning spring B3042 is fixed to the inner wall of the connecting cylinder 303 through the spring seat. A push plate 305 is fixed on the transverse slide rod 304. The connecting cylinder 303 contains hydraulic medium. A rubber pad 3051 is fixed on the push plate 305. The outer contour of the rubber pad 3051 is rectangular.

[0030] The horizontal portion of the connecting cylinder 303 is fixed with a first fixing frame 306, and the first fixing frame 306 is fixed to the top plate 101. The vertical portion of the connecting cylinder 303 is fixed with a second fixing frame 307, and the second fixing frame 307 is fixed to the top plate 101.

[0031] Working principle: When using the device, first place the melamine tableware to be processed on the lower mold 203. Then, start the hydraulic cylinder 201. The start of the hydraulic cylinder 201 will drive the upper mold 202 to gradually approach the melamine tableware on the lower mold 203. After the upper mold 202 completes the processing of the melamine tableware, pull the slider 502 to slide the lower mold 203 and the melamine tableware on the lower mold 203 out, so that the melamine tableware can be unloaded. This is quite convenient.

[0032] When the hydraulic cylinder 201 of the punching machine is started, the hydraulic cylinder 201 will push the longitudinal slide bar 302 and piston A3021 to move in the connecting cylinder 303 through the pressure plate 301. The piston A3021 will squeeze the hydraulic medium inside the connecting cylinder 303, and then drive the transverse slide bar 304 and piston B3041 to move through the hydraulic medium inside the connecting cylinder 303. The transverse slide bar 304 will drive the push plate 305 to push the worker's hand out of the stroke area of ​​the upper mold 202, effectively reducing the risk of pinching injury.

[0033] At the same time, the positioning hole 504 on the pressure plate 301 gradually approaches the positioning post 503. The positioning hole 504 and the positioning post 503 are used to assist in positioning the slider 502 and the lower mold 203. If the positioning is inaccurate, the pressure plate 301 will be obstructed by the positioning post 503, which will prevent the hydraulic cylinder 201 from moving downward normally and avoid crushing the melamine tableware.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A melamine tableware edge-trimming machine, comprising a worktable (1), said worktable (1) including a top plate (101), characterized in that: The top plate (101) is provided with a mounting bracket (4), the mounting bracket (4) is provided with a punching mechanism (2), the punching mechanism (2) and the top plate (101) are provided with a protective mechanism (3), and the top plate (101) is provided with a sliding material picking assembly (5). The punching mechanism (2) includes a hydraulic cylinder (201) and a lower die (203), and the output end of the hydraulic cylinder (201) is fixed with an upper die (202); The protective mechanism (3) includes a pressure plate (301) fixed to the output end of the hydraulic cylinder (201), and a longitudinal slide rod (302) is fixed on the bottom surface of the pressure plate (301). The protective mechanism (3) also includes a connecting cylinder (303) fixed to the top plate (101), and the longitudinal part of the connecting cylinder (303) is sealed and slidably connected to the longitudinal slide rod (302). The transverse part of the connecting cylinder (303) is sealed and slidably connected to a transverse slide rod (304). A push plate (305) is fixed on the transverse slide rod (304). The connecting cylinder (303) contains a hydraulic medium. The sliding material handling assembly (5) includes a sliding column (501) fixed to the top plate (101), a slider (502) slidably connected to the sliding column (501), and the slider (502) fixed to the lower mold (203). A positioning column (503) is fixed on the slider (502). The sliding material handling assembly (5) also includes a positioning hole (504) opened on the pressure plate (301).

2. The melamine tableware edge-punching machine according to claim 1, characterized in that: The mounting bracket (4) includes a support column (401), which is fixed to the top surface of the top plate (101). A support plate (402) is fixed to the upper end of the support column (401), and a hydraulic cylinder (201) is fixed to the top surface of the support plate (402). The output end of the hydraulic cylinder (201) passes through the support plate (402).

3. The melamine tableware edge-punching machine according to claim 1, characterized in that: A piston B (3041) is fixed at one end of the transverse slide rod (304) inside the connecting cylinder (303). The transverse slide rod (304) is slidably connected to the transverse part of the connecting cylinder (303) through the piston B (3041). A positioning spring B (3042) is fixed on the piston B (3041). The positioning spring B (3042) is fixed to the inner wall of the connecting cylinder (303) through a spring seat.

4. A melamine tableware edge-punching machine according to claim 1, characterized in that: The longitudinal slide rod (302) is fixed with a piston A (3021) at one end inside the connecting cylinder (303). The longitudinal slide rod (302) is slidably connected to the longitudinal part of the connecting cylinder (303) through the piston A (3021). A positioning spring A (3022) is fixed on the piston A (3021). The positioning spring A (3022) is fixed to the inner wall of the connecting cylinder (303) through a spring seat.

5. A melamine tableware edge-punching machine according to claim 1, characterized in that: The bottom surface of the slider (502) slides in contact with the top surface of the top plate (101), and the inner contour of the positioning hole (504) is larger than the outer contour of the positioning post (503).

6. A melamine tableware edge-punching machine according to claim 1, characterized in that: A rubber pad (3051) is fixed on the push plate (305), and the outer contour of the rubber pad (3051) is rectangular.

7. A melamine tableware edge-punching machine according to claim 1, characterized in that: The horizontal portion of the connecting cylinder (303) is fixed with a first fixing frame (306), and the first fixing frame (306) is fixed to the top plate (101). The vertical portion of the connecting cylinder (303) is fixed with a second fixing frame (307), and the second fixing frame (307) is fixed to the top plate (101).

8. A melamine tableware edge-punching machine according to claim 1, characterized in that: The bottom surface of the top plate (101) is fixed with a support leg (102), and the outer contour of the support leg (102) is rectangular.

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