A cooling device for stamping dies of household appliance stamping parts

Abstract

This utility model relates to the field of stamping die technology, specifically a cooling device for a stamping die for household appliance stamping parts. It includes a stamping die body with a lower die inside, a lower die core mounted on the lower die, and several cooling mechanisms mounted on the lower die. Each cooling mechanism includes a sleeve, a heat-conducting sleeve, and an end plug. A blowpipe is fixed to the top of the sleeve, and a ventilation assembly is provided outside the stamping die body. This cooling device for household appliance stamping parts utilizes cooling mechanisms, where the blowpipe has a flat nozzle extending downwards to the lower die core, allowing direct airflow cooling. Simultaneously, the heat-conducting sleeve is in contact with the bottom surface of the lower die core, conducting heat from the core to the fins. Air is then introduced through the ventilation assembly to remove heat from the fins, ensuring that the cooling effect directly acts on the die core, effectively dissipating the heat generated during the stamping process.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically a cooling device for stamping dies for household appliance stamping parts. Background Technology

[0002] Utility model patent CN221537881U discloses a cooling device for a stamping die and the stamping die itself. The cooling device and die include a base, a support column, a lower pressure plate, and a cooling assembly. The bottom of the support column is fixedly installed to the top of the base, and the inner surface of the lower pressure plate is movably installed to the outer surface of the support column. The cooling assembly is located at the bottom of the lower pressure plate and includes a water tank, a connecting pipe, a water pump, and an atomizer. The bottom of the water tank is fixedly installed to the inner surface of the support plate, one end of the connecting pipe is fixedly connected to the side of the water tank, and the other end is fixedly installed to the side of the water pump. The top of the water pump is fixedly installed to the bottom of the lower pressure plate, and the side of the atomizer is fixedly installed to the side of the water pump. By setting up the cooling assembly, water mist particles evaporate and absorb heat upon contact with the die surface, thereby reducing the die temperature. This prevents the stamping head inside the stamping punch from maintaining a high temperature, increasing the die's service life, reducing stamping die costs, minimizing downtime maintenance, and improving production efficiency.

[0003] The cooling device for the stamping die and the stamping die itself use an atomizer to spray water onto the outer surface of the stamping die body and the lower part. A fan then blows the water mist to accelerate evaporation and achieve cooling. This cooling method mainly acts on the outer surface of the die. However, during the stamping process, the heat is concentrated in the die core, which is in direct contact with the workpiece. Cooling the outer surface is not effective in directly cooling the die core, resulting in poor cooling targeting. The heat of the die core cannot be quickly and directly removed. Therefore, we propose a cooling device for stamping dies for household appliance stamping parts. Utility Model Content

[0004] The purpose of this utility model is to provide a cooling device for stamping dies of household appliance stamping parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cooling device for a stamping die for household appliance stamping parts includes a stamping die body, a lower die in the stamping die body, a lower die core mounted on the lower die, and a plurality of cooling mechanisms for cooling the lower die core mounted on the lower die. The plurality of cooling mechanisms are embedded in the top surface of the lower die and are evenly distributed along the length of the lower die. Each cooling mechanism includes a sleeve, a heat-conducting sleeve embedded in the middle of the sleeve, and an end plug sleeved at the front end of the sleeve. A plurality of fins are fixed inside the heat-conducting sleeve. A blowpipe extending toward the lower die core is fixed at the top end of the sleeve. A venting component for introducing air into the cooling mechanism is provided outside the stamping die body.

[0007] Preferably, the top surface of the lower mold is provided with a plurality of through grooves that penetrate the front and rear end faces of the lower mold, and the plurality of through grooves are arranged at equal intervals along the length direction of the lower mold.

[0008] In this configuration, the through slot provides installation space, allowing the cooling mechanism to be evenly distributed and facilitating balanced cooling of all areas of the lower mold core.

[0009] Preferably, the sleeve has a rectangular tubular structure, and a mounting groove for installing the heat-conducting sleeve seat is provided in the middle of the sleeve;

[0010] In this setup, the rectangular tubular sleeve adapts to the through-groove shape, enhancing installation stability, while the mounting groove ensures precise installation of the heat-conducting sleeve.

[0011] Preferably, the end of the blowpipe is curved, and the end of the blowpipe is provided with a flat nozzle.

[0012] In this setting, the flat nozzle expands the blowing range, improving the targeting and coverage of cooling.

[0013] Preferably, the heat-conducting sleeve is made of pure copper, the cross-section of the heat-conducting sleeve is U-shaped, and the closed surface of the heat-conducting sleeve faces upward and is in contact with the bottom surface of the lower mold core;

[0014] In this setup, pure copper material has good thermal conductivity, and the bonding method facilitates heat transfer.

[0015] Preferably, the fins have a sheet-like structure, the fins are parallel to the side end of the heat-conducting sleeve, and a gap for air to pass through is formed between two adjacent fins;

[0016] In this design, the sheet-like structure increases the surface area in contact with air, while the gaps allow for air circulation, facilitating heat dissipation.

[0017] Preferably, the ventilation assembly includes an air tube and several branch tubes connected to the air tube. The branch tubes are connected to the air tube via a T-joint. The end of the air tube is closed, and the beginning of the air tube is connected to an external compressed air source.

[0018] In this setup, the T-connector ensures a secure connection between the air pipe and the branch pipe, guaranteeing that air is smoothly distributed to each cooling unit.

[0019] Preferably, the outer end of the end plug has a through-hole, and a quick connector is threaded to the outer end of the mounting hole, into which the branch pipe is inserted;

[0020] In this setup, the quick-connect coupling facilitates rapid assembly and disassembly of the branch pipe and end plug, making device maintenance easier.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This appliance stamping die cooling device uses a cooling mechanism installed on the lower die. The blowpipe has a flat nozzle at the end that extends down to the die core, allowing direct airflow cooling. Simultaneously, the heat-conducting sleeve is in contact with the bottom surface of the lower die core, transferring heat from the die core to the fins. The heat is then carried away by air introduced through the ventilation assembly. This structural design allows the cooling effect to directly act on the die core, improving the targeting and effectiveness of the die core cooling and enabling timely dissipation of the heat generated during the stamping process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the lower mold structure of this utility model;

[0025] Figure 3 This is an exploded view of the cooling mechanism in this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the heat-conducting sleeve in this utility model;

[0027] Figure 5 This is a schematic diagram of the ventilation component in this utility model;

[0028] The meanings of the labels in the diagram are as follows:

[0029] 100. Stamping die body; 110. Lower die; 111. Lower die core; 112. Through groove;

[0030] 200 Cooling mechanism; 210 Sleeve; 211 Mounting slot; 212 Blowpipe; 213 Flat nozzle; 220 Heat-conducting sleeve; 221 Fins; 230 End plug; 231 Quick connector;

[0031] 300. Ventilation assembly; 310. Air tube; 320. Branch tube; 330. T-connector. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-5 A cooling device for a stamping die for household appliance stamping parts includes a stamping die body 100, a lower die 110 in the stamping die body 100, a lower die core 111 mounted on the lower die 110, and several cooling mechanisms 200 for cooling the lower die core 111 mounted on the lower die 110. Several through slots 112 penetrating the front and rear end faces of the lower die 110 are provided on the top surface of the lower die 110, providing installation space for the cooling mechanisms 200 and enabling the cooling mechanisms 200 to be stably assembled on the lower die 110. On the lower mold 110, several through slots 112 are evenly spaced along the length of the lower mold 110. The cooling mechanism 200 is embedded in the through slots 112, so that the cooling mechanism 200 is evenly spaced along the length of the lower mold 110. This distribution method can make each area of ​​the lower mold core 111 cool evenly and avoid local overheating. The cooling mechanism 200 includes a sleeve 210, a heat-conducting sleeve seat 220 embedded in the middle of the sleeve 210, and an end plug 230 sleeved at the front end of the sleeve 210.

[0034] like Figure 1 and Figure 3 As shown, in this utility model, the sleeve 210 has a rectangular tubular structure. The rectangular tubular structure of the sleeve 210 can better fit the shape of the through groove 112 and enhance the stability of the installation. The middle part of the sleeve 210 is provided with an installation groove 211 for installing the heat-conducting sleeve 220. The installation groove 211 provides a precise installation position for the heat-conducting sleeve 220, ensuring a reliable connection between the heat-conducting sleeve 220 and the sleeve 210. The heat-conducting sleeve 220 is embedded in the installation groove 211.

[0035] like Figure 4As shown, specifically, the heat-conducting sleeve 220 is made of pure copper. Pure copper has excellent thermal conductivity, which can efficiently transfer the heat generated by the lower mold core 111. The heat-conducting sleeve 220 has a U-shaped cross-section, with its closed surface facing upwards and fitting against the bottom surface of the lower mold core 111. This fitting method increases the contact area with the lower mold core 111, improving heat transfer efficiency. Several fins 221 are fixed inside the heat-conducting sleeve 220. The fins 221 have a sheet-like structure and are parallel to the side ends of the heat-conducting sleeve 220. A gap is formed between adjacent fins 221 to allow air to pass through. The fins 221 increase the contact area with the air, facilitating heat dissipation into the air.

[0036] like Figure 1 , Figure 3 and Figure 5 As shown, further, the main body 100 of the stamping die is provided with a ventilation assembly 300 for introducing air into the cooling mechanism 200. The ventilation assembly 300 includes an air pipe 310 and several branch pipes 320 connected to the air pipe 310. The branch pipes 320 are connected to the air pipe 310 via a T-joint 330, which ensures a stable connection between the air pipe 310 and the branch pipes 320, guaranteeing smooth air flow. The end of the air pipe 310 is closed, and the beginning of the air pipe 310 is connected to an external compressed air source. The outer end of the end plug 230 has a through-hole, and a quick connector 231 is threaded onto the outer end of the through-hole. The quick connector 231 facilitates the quick connection and disassembly of the branch pipes 320 and the end plug 230, making device maintenance convenient. The branch pipes 320 are inserted into the quick connector 231.

[0037] like Figure 1 , Figure 3 and Figure 5 As shown, in addition, a blowpipe 212 extending down to the lower mold core 111 is fixed at the top of the sleeve 210. The blowpipe 212 can guide air to the vicinity of the lower mold core 111. The end of the blowpipe 212 is curved, so that the air can act on the lower mold core 111 more accurately. The end of the blowpipe 212 is provided with a flat nozzle 213. The flat nozzle 213 can expand the air blowing range and improve the cooling coverage of the lower mold core 111.

[0038] In this embodiment, the cooling device for the stamping die of household appliance stamping parts is used as follows: First, the cooling mechanism 200 is embedded into the through groove 112 of the lower die 110, so that the closed surface of the heat-conducting sleeve 220 is in contact with the bottom surface of the lower die core 111. The branch pipe 320 of the ventilation component 300 is connected to the end plug 230 through the quick connector 231, and the air pipe 310 is connected to an external compressed air source. Then, the external compressed air enters each branch pipe 320 through the air pipe 310 and the tee connector 330, and then enters the sleeve 210 through the end plug 230. Next, part of the air entering the sleeve 210 flows through the gap between the fins 221 inside the heat-conducting sleeve 220, carrying away the heat transferred from the heat-conducting sleeve 220 to the fins 221. The other part is blown down to the lower mold core 111 through the blowpipe 212 and the flat nozzle 213, directly cooling the lower mold core 111. Finally, after the cooling work is completed, the external compressed air source is turned off. If maintenance or replacement of parts is required, the branch pipe 320 can be disassembled through the quick connector 231, and the cooling mechanism 200 can be taken out from the through groove 112 for operation.

[0039] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A household appliance stamping die cooling device, comprising a stamping die body (100), a lower die (110) is arranged in the stamping die body (100), and a lower die core (111) is mounted on the lower die (110), characterized in that: The lower die (110) is equipped with a plurality of cooling mechanisms (200) for cooling the lower die core (111). The plurality of cooling mechanisms (200) are embedded in the top surface of the lower die (110) and are evenly distributed at equal intervals along the length of the lower die (110). The cooling mechanism (200) includes a sleeve (210), a heat-conducting sleeve seat (220) embedded in the middle of the sleeve (210), and an end plug (230) sleeved on the front end of the sleeve (210). A plurality of fins (221) are fixed inside the heat-conducting sleeve seat (220). A blowpipe (212) extending toward the lower die core (111) is fixed at the top end of the sleeve (210). The stamping die body (100) is provided with a ventilation component (300) for introducing air into the cooling mechanism (200).

2. The cooling device for a press die for a home appliance press part according to claim 1, characterized by: The top surface of the lower mold (110) is provided with a plurality of through grooves (112) that penetrate the front and rear end faces of the lower mold (110). The plurality of through grooves (112) are arranged at equal intervals along the length direction of the lower mold (110).

3. The cooling device for a press die for a home appliance press part according to claim 1, characterized by: The sleeve (210) has a rectangular tubular structure, and a mounting groove (211) for installing the heat-conducting sleeve (220) is provided in the middle of the sleeve (210).

4. The cooling device for a press die for a home appliance press part according to claim 1, characterized by: The end of the blowpipe (212) is curved, and the end of the blowpipe (212) is provided with a flat nozzle (213).

5. The cooling device for stamping dies of household appliance stamping parts according to claim 1, characterized in that: The heat-conducting sleeve (220) is made of pure copper material. The cross-section of the heat-conducting sleeve (220) is U-shaped. The closed surface of the heat-conducting sleeve (220) faces upward and is in contact with the bottom surface of the lower mold core (111).

6. The cooling device for a press die for a home appliance press part according to claim 1, characterized by: The fins (221) have a sheet-like structure and are parallel to the side ends of the heat-conducting sleeve (220). A gap for air to pass through is formed between two adjacent fins (221).

7. The cooling device for a press die for a home appliance press part according to claim 1, characterized by: The ventilation assembly (300) includes an air pipe (310) and several branch pipes (320) connected to the air pipe (310). The branch pipes (320) are connected to the air pipe (310) through a T-joint (330). The end of the air pipe (310) is closed, and the beginning of the air pipe (310) is connected to an external compressed air source.

8. The cooling device for a press die for a home appliance press part according to claim 7, characterized in that: The end plug (230) has an installation hole through the end plug (230) at its outer end. A quick connector (231) is threaded to the outer end of the installation hole, and the branch pipe (320) is inserted into the quick connector (231).

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