Die for efficiently and losslessly discharging punching scraps

By improving the mold structure and exhaust device, efficient and lossless discharge of waste chips from the heat dissipation holes of the laptop aluminum shell was achieved, solving the problems of mold clogging and product damage, and improving production efficiency and environmental management.

CN223394147UActive Publication Date: 2025-09-30GUANGTAI PRECISION TECH (SUZHOU) CO LTD
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Patent Information

Application Number
CN202422734495.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-09-30
Estimated Expiration
2034-11-11

AI Technical Summary

Technical Problem

The existing die for punching heat dissipation holes in aluminum laptop cases suffers from problems such as untimely waste removal leading to blockage, waste material jumping out and damaging the die and product, and poor 5S management.

Method used

The machine adopts a two-layer lower die blade structure, a closed lower foot design, acrylic plate observation, exhaust device and flow monitoring system to achieve efficient and lossless discharge of waste chips.

Benefits of technology

It reduces the frequency of mold edge damage, reduces product damage, improves the cleanliness of the workshop environment, and reduces maintenance and cleaning time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a die capable of efficiently and losslessly discharging punching scraps, which relates to the technical field of die processing, and comprises a machine tool main body, a scrap discharging assembly is arranged on the surface of the machine tool main body, the scrap discharging assembly comprises an operation table, and the surface of the operation table is connected with lower foot pads; according to the utility model, the lower die knife edge insert core is changed into two layers from the traditional one layer, so that the number of times of knife edge damage and the replacement cost are reduced, the smoothness of waste falling is optimized by reducing the straight body of the knife edge and enlarging the blanking hole in the lower layer, and the lower foot pad is changed into a closed state from a traditional open state, so that a closed vacuum is formed and is convenient to store; the acrylic plate is installed on the side face so that the storage condition of waste can be observed conveniently, waste chips fall and accumulate in the closed space and are not prone to scattering to cause 5S badness, the pipeline circulation air draft device enables the waste chips to be discharged out of the die in the negative pressure air suction direction in a concentrated mode, and die knife edge damage and product pressing damage caused by the fact that the waste materials jump out of the die face are reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of mold processing, in particular to a mold for efficiently and losslessly discharging punching waste chips. Background Art

[0002] Currently, the die structure for punching heat dissipation holes in aluminum laptop cases typically uses a traditional punching die structure. This structure uses a coil spring to hold the upper and lower dies against the material, while a pneumatic press provides the driving force to drive the punch, creating the pre-designed holes. Waste material removed from the material by the upper punch accumulates in the lower die blade. As the number of punching cycles increases, this material falls from the blade into the chip removal hole in the lower die, where it must be manually removed. Manual removal of this material often results in delayed or forgotten removal, leading to waste accumulation and blockage, potentially causing the die to explode. Furthermore, due to the complexity and diversity of the product's heat dissipation holes and other factors, such as mold machining errors, waste material can also escape the lower die blade and fall onto the working surface, causing damage to or crushing the lower die blade in subsequent products. Consequently, the punching results after repair are suboptimal. Consequently, the industry is actively exploring better die structures and technical solutions to address this issue.

[0003] Disadvantages / shortcomings of existing technologies:

[0004] 1. The lower die blade is weak and easily deformed, and oil stains can cause waste material blockage or die bursting;

[0005] 2. Waste materials are easily caused to jump to the die surface due to the machining error of the blade gap, causing product damage;

[0006] 3. When removing waste manually, it is always possible that the waste is not removed in time or is forgotten, which causes waste to accumulate and clog the mold, thus breaking the mold;

[0007] 4. When cleaning waste, it is easy to scatter on the punching machine or the floor of the workshop, resulting in poor 5S and increasing the 5S management time of the workshop.

[0008] Therefore, we proposed a new die for efficient and lossless discharge of punching waste. Utility Model Content

[0009] The purpose of the utility model is to solve the problem of efficient and lossless discharge of waste chips produced by punching heat dissipation holes of an aluminum shell of a laptop in the prior art.

[0010] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mold for efficient and lossless discharge of punching waste chips, comprising a machine tool body, a chip removal component provided on the surface of the machine tool body, the chip removal component comprising an operating table, the surface of the operating table is connected to a lower pad, the top surface of the lower pad is connected to a padding block, the top of the padding block is connected to a cutter head, an acrylic plate is provided in a ring on the outer surface of the lower pad, a discharge port is provided on one side of the acrylic plate, an air pipe is connected to the inside of the discharge port, the bottom end of the air pipe is connected to a collection box, one side of the collection box is connected to an exhaust fan, a mounting frame is provided inside the collection box, two groups of card slots are provided inside the mounting frame, and a coarse filter screen and a fine filter screen are provided inside the two groups of card slots respectively.

[0011] Preferably, the exhaust fan is electrically connected to an external power supply through a control switch, and the two groups of card slots are respectively slidably connected with the coarse filter and the fine filter, and the coarse filter and the fine filter can collect waste chips.

[0012] Preferably, a sealing ring is provided in an annular shape on the outer surface of the mounting bracket, and the outer surface of the mounting bracket fits against the inner wall of the collection box. The sealing ring can realize a sealed space between the mounting bracket and the collection box to ensure that waste chips can be sucked in.

[0013] Preferably, a monitoring component is plugged into the top of one side of the air pipe, and the monitoring component includes an instrument. The bottom end of the instrument is connected to a flow sensor, and the monitoring component can monitor the air flow.

[0014] Preferably, a PLC control panel is connected to one side of the machine tool body close to the instrument, and an alarm is connected to one side of the PLC control panel. When the internal air flow is small, the alarm will automatically sound an alarm.

[0015] Preferably, the PLC control panel is electrically connected to an external power supply via a control switch, and the PLC control panel is electrically connected to the flow sensor and the alarm, so that the alarm and the flow sensor can be controlled through the PLC control panel.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. In the present invention, the lower die blade insert is changed from the traditional single layer to two layers, which reduces the frequency of blade damage and replacement costs. In addition, the reduction of the blade straight body and the enlargement of the lower blanking hole optimize the smoothness of waste falling. The lower pad is changed from the traditional open state to the closed state to form a sealed vacuum for easy storage. An acrylic plate is installed on the side to facilitate observation of the storage status of the waste. The waste chips fall and accumulate in the closed space and are not easy to scatter, causing poor 5S. The pipeline circulation exhaust device allows the waste chips to be discharged from the mold in the direction of negative pressure suction, reducing the damage to the mold blade and the pressure damage to the product caused by the waste jumping out of the mold surface.

[0018] 2. In the present invention, the air flow in the trachea can be monitored by a flow sensor. When the inside of the trachea is blocked, the coarse filter and the fine filter can be pulled out for cleaning to avoid affecting normal chip removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the die for efficient and lossless discharge of punching waste chips proposed in the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure from another angle of the mold for efficiently and losslessly discharging punching waste chips proposed in the utility model;

[0021] Figure 3 This is a schematic diagram of the partial explosion structure of the die for efficient and lossless discharge of punching waste proposed in the utility model;

[0022] Figure 4 This is a schematic diagram of the explosion structure of the collection box of the mold for efficient and lossless discharge of punching waste proposed in the utility model;

[0023] Figure 5 The utility model provides a schematic diagram of the cross-sectional structure of the air pipe of the mold for efficiently and losslessly discharging punching waste chips.

[0024] Legend: 1. Machine tool body; 2. Chip removal assembly; 201. Operating table; 202. Lower foot; 203. Pad block; 204. Cutting head; 205. Acrylic plate; 206. Discharge port; 207. Air pipe; 208. Collection box; 209. Exhaust fan; 210. Mounting bracket; 211. Card slot; 212. Coarse filter; 213. Fine filter; 3. Monitoring assembly; 301. Instrument; 302. Flow sensor; 303. Alarm; 304. PLC control panel. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] See also Figure 1-3 The utility model provides a technical solution: a mold for efficient and lossless discharge of punching waste chips, including a machine tool body 1, a chip removal component 2 is provided on the surface of the machine tool body 1, and the chip removal component 2 includes an operating table 201, the surface of the operating table 201 is connected to a lower pad 202, the top surface of the lower pad 202 is connected to a pad block 203, the top of the pad block 203 is connected to a cutter head 204, and the outer surface of the lower pad 202 is annularly provided with an acrylic plate 205, a discharge port 206 is opened inside one side of the acrylic plate 205, an air pipe 207 is inserted into the inside of the discharge port 206, the bottom end of the air pipe 207 is connected to a collection box 208, one side of the collection box 208 is connected to an exhaust fan 209, and the collection box 208 is provided with a mounting frame 210, and the mounting frame 210 is provided with two groups of card slots 211. The interiors of the two groups of card slots 211 are respectively provided with a coarse filter screen 212 and a fine filter screen 213.

[0028] like Figure 3-4 As shown, the exhaust fan 209 is electrically connected to the external power supply through the control switch, and the two sets of slots 211 form a sliding connection with the coarse filter 212 and the fine filter 213 respectively, and the coarse filter 212 and the fine filter 213 can collect waste chips.

[0029] like Figure 4 As shown, a sealing ring is provided on the outer surface of the mounting frame 210. The outer surface of the mounting frame 210 fits against the inner wall of the collection box 208. The sealing ring can realize a sealed space between the mounting frame 210 and the collection box 208 to ensure that waste chips can be sucked in.

[0030] As shown in FIG5 , a monitoring component 3 is plugged into the top of one side of the air pipe 207 . The monitoring component 3 includes a meter 301 . The bottom of the meter 301 is connected to a flow sensor 302 . The monitoring component 3 can monitor the air flow.

[0031] like Figure 1 and Figure 5 As shown, a PLC control panel 304 is connected to one side of the machine tool body 1 close to the instrument 301 , and an alarm 303 is connected to one side of the PLC control panel 304 . When the internal air flow is small, the alarm 303 will automatically sound an alarm.

[0032] like Figure 5As shown, the PLC control panel 304 is electrically connected to the external power supply through the control switch, and the PLC control panel 304 is electrically connected to the flow sensor 302 and the alarm 303. The alarm 303 and the flow sensor 302 can be controlled through the PLC control panel 304.

[0033] The usage and working principle of this device: by changing the lower die blade insert from the traditional single layer to two layers, the frequency of blade damage and replacement cost are reduced, and the reduction of the blade straight body and the enlargement of the lower blanking hole optimize the smoothness of waste falling, and the lower pad 202 is changed from the traditional open state to the closed state to form a closed vacuum for easy storage, and an acrylic plate 205 is installed on the side to facilitate observation of the storage status of the waste. The waste chips fall and accumulate in the closed space and are not easy to scatter, causing poor 5S. By starting the exhaust fan 209, the waste chips can be discharged from the mold in the direction of negative pressure suction and collected into the collection box 208 through the air pipe 207. The waste chips can be collected through the coarse filter 212 and the fine filter 213, reducing the damage to the mold blade caused by the waste jumping out of the mold surface. When the coarse filter 212 and the fine filter 213 collect a lot of waste chips, the mounting bracket 210 can be pulled out of the collection box 208, and then the coarse filter 212 and the fine filter 213 can be pulled out from the two sets of card slots 211. After that, they can be cleaned and used normally. The air flow of the air pipe 207 can be monitored in real time through the set flow sensor 302, and the air flow can be observed through the instrument 301. When the inside of the air pipe 207 is relatively blocked, the flow sensor 302 will receive the induction and send an electrical signal to the PLC control panel 304. After receiving the signal, the PLC control panel 304 will activate the alarm 303 to sound an alarm, and the operator will pull out the coarse filter 212 and the fine filter 213 for cleaning to avoid affecting the normal chip removal.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A die for efficiently and non-destructively discharging punching waste, comprising a machine tool body (1), characterized in that: A chip removal assembly (2) is provided on the surface of the machine tool body (1); The chip removal assembly (2) comprises an operating table (201), the surface of the operating table (201) is connected to a lower pad (202), the top surface of the lower pad (202) is connected to a pad block (203), the top of the pad block (203) is connected to a cutter head (204), an acrylic plate (205) is provided in an annular shape on the outer surface of the lower pad (202), a discharge port (206) is provided inside one side of the acrylic plate (205), and the discharge port (206) is provided on the outer surface of the lower pad (202). An air pipe (207) is inserted into the interior of the port (206), the bottom end of the air pipe (207) is connected to a collection box (208), one side of the collection box (208) is connected to an exhaust fan (209), a mounting frame (210) is provided inside the collection box (208), two groups of slots (211) are provided inside the mounting frame (210), and a coarse filter (212) and a fine filter (213) are provided inside the two groups of slots (211), respectively.

2. The die for efficient and lossless discharge of punching waste according to claim 1, characterized in that: The exhaust fan (209) is electrically connected to an external power source via a control switch, and the two groups of the card slots (211) are respectively connected to the coarse filter (212) and the fine filter (213) in a sliding manner.

3. The die for efficient and lossless discharge of punching waste according to claim 2, characterized in that: A sealing ring is provided in an annular shape on the outer surface of the mounting frame (210), and the outer surface of the mounting frame (210) is in contact with the inner wall of the collection box (208).

4. The die for efficient and lossless discharge of punching waste according to claim 1, characterized in that: A monitoring component (3) is plugged into the top of one side of the air pipe (207), and the monitoring component (3) includes a meter (301), and a flow sensor (302) is connected to the bottom end of the meter (301).

5. The die for efficient and lossless discharge of punching waste according to claim 4, characterized in that: A PLC control panel (304) is connected to one side of the machine tool body (1) close to the instrument (301), and an alarm (303) is connected to one side of the PLC control panel (304).

6. The die for efficient and lossless discharge of punching waste according to claim 5, characterized in that: The PLC control panel (304) is electrically connected to an external power source via a control switch, and the PLC control panel (304) is electrically connected to the flow sensor (302) and the alarm (303).