A rapid cooling structure for automotive door panel injection molds

Abstract

This utility model discloses a rapid cooling structure for an automotive door panel injection mold, comprising: a housing, and a heat-conducting plate disposed on the upper side of the housing; a cooling chamber is formed inside the housing, and a water pump is disposed on the left side of the housing; it also includes: an observation plate installed on the outside of the cooling chamber, with a liquid inlet disposed on the front side of the cooling chamber and a one-way liquid inlet assembly disposed on the rear side of the liquid inlet. This rapid cooling structure for the automotive door panel injection mold facilitates the disassembly of the cooling pipes after use, preventing blockages due to impurities during prolonged use and avoiding any impact on the cooling effect of the device. Furthermore, it facilitates the addition of coolant during use, allowing operators to easily replenish the coolant when it decreases, thus improving the efficiency of the device and resulting in better performance.

Description

Technical Field

[0001] This utility model relates to the field of injection mold cooling technology, specifically a rapid cooling structure for an automotive door panel injection mold. Background Technology

[0002] Automotive door panel injection molds are used to produce automotive door panel interior parts. They are primarily used in injection molding processes, where thermoplastic plastic is injected into the mold cavity, and after cooling and solidification, the automotive door panel interior part is formed. These molds typically consist of a fixed mold and a moving mold. Molten plastic is injected into the mold cavity using an injection molding machine, and then the desired door panel component is formed through a cooling and solidification process. During the use of the mold, a rapid cooling structure is required to cool the material, for example;

[0003] Authorization announcement number CN212171228U discloses a rapid cooling structure for injection molds, including: a moving mold core and a hanging pin disposed on the moving mold core. An insert is disposed on the hanging pin. The moving mold core is internally provided with a water cooling structure and an air cooling structure. The water cooling structure adopts a conformal cooling water channel structure for cooling the injection molded product, and the air cooling structure is used for cooling the insert. This utility model combines the design of the mold cooling structure with the conformal cooling water channel structure and the air cooling structure, shortening the product cooling time, improving the product cooling efficiency and cooling effect, and improving product production efficiency and production quality.

[0004] However, the existing rapid cooling structure is not easy to disassemble after use, which makes it easy for the cooling pipes to become blocked due to the accumulation of impurities during long-term use, thus affecting the cooling effect of the device.

[0005] Therefore, to address the aforementioned issues, there is an urgent need for innovative design based on the existing rapid cooling structure. Utility Model Content

[0006] The purpose of this utility model is to provide a rapid cooling structure for automotive door panel injection molds, in order to solve the problem mentioned in the background art that it is inconvenient to disassemble the cooling pipes after use, which leads to blockage of the cooling pipes due to the accumulation of impurities during long-term use, thus affecting the cooling effect of the device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rapid cooling structure for an automotive door panel injection mold, comprising: a housing, and a heat-conducting plate disposed on the upper side of the housing, wherein a cooling cavity is provided inside the housing, and a water pump is disposed on the left side of the housing;

[0008] Also includes:

[0009] An observation plate is installed on the outside of the cooling chamber, and a liquid inlet is provided on the front side of the cooling chamber. A one-way liquid inlet assembly is provided on the rear side of the liquid inlet. A cooling circulation assembly is provided inside the cooling chamber. The lower end of the heat-conducting plate is connected to a cooling pipe body, and a first mounting block is provided on the outside of the cooling pipe body.

[0010] A pressing block is installed on the outside of the first mounting block, and a guide rod is connected to the inside of the pressing block. A locking block is provided on the upper side of the pressing block, and a second return spring is connected to the inside of the locking block. A second mounting block is installed on the upper side of the first mounting block, and a connecting block is provided on the outside of the second mounting block. A positioning block is provided on the outside of the heat-conducting plate.

[0011] In one possible implementation, the heat-conducting plate is engaged with the positioning block, and the positioning block has a "T" shaped cross-section.

[0012] In one possible scenario, the cooling pipe body is engaged with the first mounting block, and the cross-section of the cooling pipe body is a wavy structure.

[0013] In one possible implementation, the pressing block is slidably connected to the guide rod, and the pressing block is symmetrically arranged about the central axis of the first mounting block.

[0014] In one possible implementation, the locking block and the connecting block are engaged relative to each other, and the connecting block is symmetrically arranged about the central axis of the second mounting block.

[0015] In one possible implementation, the one-way liquid inlet assembly includes a blocking block installed on the rear side of the liquid inlet, and a connecting rod is provided on the outer side of the blocking block. A guide block is connected to the rear side of the connecting rod, and the middle part of the blocking block is attached to the first return spring.

[0016] The blocking block is engaged with the outer casing of the machine body, and the connecting rod is symmetrically arranged about the central axis of the blocking block.

[0017] In one possible implementation, the connecting rod is slidably connected to the guide block.

[0018] In one possible implementation, the cooling circulation assembly includes a cooler installed in the middle of the housing, and a cooling fin is provided at the lower end of the cooler, with a guide groove formed on the surface of the cooling fin;

[0019] The guide grooves are evenly spaced on the surface of the cooling plate, and the longitudinal section of the guide grooves has a wavy structure.

[0020] Compared with the prior art, the beneficial effects of this utility model are: the rapid cooling structure of the automotive door panel injection mold facilitates the disassembly of the cooling pipes after use, making it less prone to blockage due to impurity accumulation during long-term use, thus preventing the cooling effect of the device from being affected by the cooling pipes. Simultaneously, it facilitates the addition of coolant during use, allowing operators to easily replenish the coolant when it is observed to be low, improving the efficiency of the device and resulting in better performance. Specifically, as shown below:

[0021] 1. The cooler, in conjunction with the cooling fins, cools the coolant stored inside the cooling chamber. Due to the wavy structure of the guide channel, the contact area between the cooling fins and the coolant is greatly increased, thereby improving the cooling effect of the cooling fins on the coolant. The coolant is then pumped into the cooling pipe body through the water pump, the suction pipe body, and the door panel injection mold through the heat conduction plate. The coolant, which has been heated by the heat, returns to the interior of the cooling chamber, thus completing the hot and cold cycle.

[0022] 2. The first reset spring, in conjunction with the outer casing, pushes the blocking block and connecting rod back to the front end along the guide block, so that the blocking block re-engages with the outer casing to block the inlet, preventing the coolant stored inside the cooling chamber from splashing outward through the inlet during use. At the same time, this one-way liquid inlet structure can effectively prevent impurities outside the device from entering the interior of the cooling chamber through the inlet, thus improving the stability of the device.

[0023] 3. By pressing the block in conjunction with the guide rod, the locking block is pushed inward to squeeze the second reset spring, which releases the locking block from the locking limit of the connecting block, making it easier for the operator to pull the second mounting block upward. At this time, the cooling pipe body is pulled upward, so that the cooling pipe body is separated from the inside of the first mounting block, making it easier for the operator to clean the inside of the cooling pipe body and avoid blockage caused by the accumulation of debris during long-term use. Attached Figure Description

[0024] Figure 1 This is a frontal cross-sectional view of the present invention.

[0025] Figure 2 This is a side view sectional structural diagram of the present invention;

[0026] Figure 3 This is a top view sectional structural diagram of the present invention;

[0027] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0028] Figure 5 This is a schematic cross-sectional view of the connection between the blocking block and the connecting rod of this utility model.

[0029] In the diagram: 1. Outer casing; 2. Cooling chamber; 3. Observation plate; 4. Liquid inlet; 5. Blocking block; 6. Connecting rod; 7. Guide block; 8. First return spring; 9. Cooler; 10. Cooling fins; 11. Guide channel; 12. Suction pipe; 13. Suction hole; 14. Water pump; 15. Cooling pipe body; 16. First mounting block; 17. Pressing block; 18. Guide rod; 19. Locking block; 20. Second return spring; 21. Second mounting block; 22. Connecting block; 23. Heat-conducting plate; 24. Positioning block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0031] Please see Figure 1-5 This utility model provides a technical solution: a rapid cooling structure for an automotive door panel injection mold, comprising a machine body shell 1, a cooling cavity 2, an observation plate 3, a liquid inlet 4, a blocking block 5, a connecting rod 6, a guide block 7, a first return spring 8, a cooler 9, a cooling plate 10, a guide groove 11, a suction pipe 12, a suction hole 13, a water pump 14, a cooling pipe body 15, a first mounting block 16, a pressing block 17, a guide rod 18, a locking block 19, a second return spring 20, a second mounting block 21, a connecting block 22, a heat-conducting plate 23, and a positioning block 24.

[0032] Specifically, such as Figure 1 , Figure 2 and Figure 5As shown, during the use of the device, the heat-conducting plate 23 is installed on the upper side of the outer casing 1. Due to the engaging connection between the positioning block 24 and the heat-conducting plate 23, the positioning block 24 on the upper side of the outer casing 1 positions and connects to the heat-conducting plate 23 installed on its inner side, preventing the heat-conducting plate 23 from falling outwards during use. At this time, the heat-conducting plate 23 installed on the upper side of the outer casing 1 contacts the cooling pipe body 15. Simultaneously, the cooler 9 located in the middle of the outer casing 1 is activated, allowing the cooler 9, in conjunction with the cooling fins 10 installed below it, to cool the coolant stored inside the cooling chamber 2 to a suitable low temperature. At this time, the water pump 14 located on the left side of the outer casing 1 is activated, allowing the water pump 14, in conjunction with the cooling fins 10 installed below it, to cool the coolant stored inside the cooling chamber 2 to a suitable low temperature. The suction pipe 12 and suction hole 13 draw coolant stored inside the cooling chamber 2. Simultaneously, the water pump 14 discharges the drawn coolant into the cooling pipe body 15 through its upper interface. This causes the heat-conducting plate 23, which is in contact with the cooling pipe body 15, to cool rapidly due to the coolant. The device is then placed inside the door panel injection mold, so that the heat-conducting plate 23 on the upper side of the outer casing 1 contacts the door panel injection mold. The high temperature of the door panel injection mold and the low temperature of the heat-conducting plate 23 generate heat exchange efficiency, allowing the heat-conducting plate 23 to rapidly cool the door panel injection mold. Meanwhile, the coolant affected by the high temperature returns to the interior of the cooling chamber 2 through the opening at the upper right side of the cooling chamber 2. The coolant returning to the cooling chamber 2 is cooled again by the cooling fins 10 and the guide channel 11. Simultaneously, the wavy structure of the guide channel 11 significantly increases the contact area between the cooling fins 10 and the coolant, thereby improving the cooling effect of the cooling fins 10 and enhancing the cooling circulation effect of the device. During operation, the state of the coolant stored inside the cooling chamber 2 can be observed through the observation plate 3 on the outside of the cooling chamber 2. This allows operators to easily connect the filling pipe to the front end of the inlet 4. At this time, the coolant inside the filling pipe flows into the device through the inlet 4, pushing the blockage block 5 backward. Due to the sliding connection structure between the connecting rod 6 and the guide block 7, the blockage block 5 and the guide block 7... During the process of the connecting rod 6 displacing backward to compress the first return spring 8, it is guided and limited by the guide block 7 to prevent the blocking block 5 and the connecting rod 6 from shifting position during movement. At the same time, after the liquid filling work is completed, the liquid filling pipe is pulled out by pulling it forward. At this time, the first return spring 8 loses the compression of the coolant and generates a rebound reaction force, which pushes the blocking block 5 and the connecting rod 6 connected to its front end to reset along the guide block 7 to the front end. At this time, because of the locking connection structure between the blocking block 5 and the outer shell 1, the blocking block 5 that has moved forward re-blocks the liquid inlet 4, preventing the coolant stored inside the cooling chamber 2 from being discharged to the outside through the liquid inlet 4, thus completing the one-way liquid filling process of the coolant.

[0033] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, after the device is used, the heat-conducting plate 23 is removed by pulling it upwards, causing it to disengage from the positioning block 24 and be discharged outwards. At this time, the pressing block 17 is pressed inwards. Due to the sliding connection between the pressing block 17 and the guide rod 18, the pressing block 17 is guided and limited by the guide rod 18 during its inward movement, preventing positional displacement. The inwardly displaced pressing block 17 pushes the locking block 19 connected to its upper side inwards, compressing the second return spring 20. Due to the engaging connection between the locking block 19 and the connecting block 22, the locking block 19 is engaged and limited by the connecting block 22 during its inward movement, facilitating the operator to pull upwards to remove the second mounting block 21 and the connecting block 22. At this time, the cooling pipe body 15 is pulled upwards, causing it to disengage from the first mounting block 21. The inner side of block 16 facilitates the operator to clean the inside of the cooling pipe body 15. The cleaned cooling pipe body 15 is then reinstalled inside the first mounting block 16. At this time, the second mounting block 21 and connecting block 22 are reinstalled on the outside of the cooling pipe body 15. By releasing the pressure on the pressing block 17, the second return spring 20 inside the first mounting block 16 loses its pressure constraint and generates a rebound reaction force. The second return spring 20 then pushes the locking block 19 and pressing block 17 connected to its outer side to re-displace along the guide rod 18 and connect with the connecting block 22. This locks and limits the connection block 22, thus completing the quick disassembly and cleaning of the cooling pipe body 15. This prevents blockages caused by the accumulation of debris during prolonged use and extends the service life of the cooling pipe body 15.

[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid cooling structure of an injection mold for an automobile door panel, comprising: The outer casing (1) and the heat-conducting plate (23) provided on the upper side of the outer casing (1) are provided. A cooling cavity (2) is provided inside the outer casing (1), and a water pump (14) is provided on the left side of the outer casing (1). Its characteristic is that it further includes: An observation plate (3) is installed on the outside of the cooling chamber (2), and a liquid inlet (4) is provided on the front side of the cooling chamber (2). A one-way liquid inlet assembly is provided on the rear side of the liquid inlet (4). A cooling circulation assembly is provided inside the cooling chamber (2). The lower end of the heat-conducting plate (23) is connected to a cooling pipe body (15), and a first mounting block (16) is provided on the outside of the cooling pipe body (15). A pressing block (17) is installed on the outside of the first mounting block (16), and a guide rod (18) is connected to the inside of the pressing block (17). A locking block (19) is provided on the upper side of the pressing block (17), and a second reset spring (20) is connected to the inside of the locking block (19). A second mounting block (21) is installed on the upper side of the first mounting block (16), and a connecting block (22) is provided on the outside of the second mounting block (21). A positioning block (24) is provided on the outside of the heat-conducting plate (23).

2. The rapid cooling structure for an automotive door panel injection mold according to claim 1, characterized in that: The heat-conducting plate (23) and the positioning block (24) are engaged and connected, and the cross-section of the positioning block (24) is a "T" shaped structure.

3. The rapid cooling structure for an automotive door panel injection mold according to claim 1, characterized in that: The cooling pipe body (15) is engaged with the first mounting block (16), and the cross-section of the cooling pipe body (15) is a wave-shaped structure.

4. The rapid cooling structure for an automotive door panel injection mold according to claim 1, characterized in that: The pressing block (17) is slidably connected to the guide rod (18), and the pressing block (17) is symmetrically arranged about the central axis of the first mounting block (16).

5. The rapid cooling structure for an automotive door panel injection mold according to claim 1, characterized in that: The locking block (19) and the connecting block (22) are engaged and connected, and the connecting block (22) is symmetrically arranged about the central axis of the second mounting block (21).

6. The rapid cooling structure for an automotive door panel injection mold according to claim 1, characterized in that: The one-way liquid inlet assembly includes a blocking block (5) installed on the rear side of the liquid inlet (4), and a connecting rod (6) is provided on the outer side of the blocking block (5). A guide block (7) is connected to the rear side of the connecting rod (6), and the middle part of the blocking block (5) is attached to the first reset spring (8). The blocking block (5) is engaged with the outer shell (1) of the machine body, and the connecting rod (6) is symmetrically arranged about the central axis of the blocking block (5).

7. The rapid cooling structure for an automotive door panel injection mold according to claim 6, characterized in that: The connecting rod (6) is slidably connected to the guide block (7).

8. The rapid cooling structure for an automotive door panel injection mold according to claim 1, characterized in that: The cooling circulation assembly includes a cooler (9) installed in the middle of the outer casing (1), and a cooling fin (10) is provided at the lower end of the cooler (9), and a guide groove (11) is provided on the surface of the cooling fin (10). The guide groove (11) is opened at equal intervals on the surface of the cooling plate (10), and the longitudinal section of the guide groove (11) is a wave-shaped structure.

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