Rapid cooling device for button forming die

Abstract

The utility model discloses a rapid cooling device for a button forming mold, and belongs to the technical field of mold cooling. The rapid cooling device for the button forming mold comprises a mold assembly, a cooling assembly and an ejection assembly, the cooling assembly is arranged below the mold assembly, the ejection assembly is arranged in the mold assembly, the mold assembly is used for injection molding of buttons, and the cooling assembly is used for cooling the buttons subjected to injection molding in the mold assembly. The cooling assembly comprises a cooling box, an air inlet box and an air outlet box are installed on the two sides of the upper end of the cooling box respectively, a compressor, a condenser, a dryer, an expansion valve and an evaporator are installed in the cooling box, and a first pipeline is communicated among the compressor, the condenser, the dryer, the expansion valve and the evaporator. And a second pipeline is communicated between the evaporator and the compressor.

Description

Technical Field

[0001] This utility model relates to the field of mold cooling technology, specifically a rapid cooling device for button molding molds. Background Technology

[0002] Buttons are a common clothing accessory, primarily used to fasten garments, and also serve a decorative purpose. Buttons are generally manufactured using two methods: injection molding and stamping. Injection molding involves pouring molten plastic into a mold cavity, where it cools and solidifies to form the desired button shape. Stamping typically uses equipment such as a punch press, applying pressure to a sheet of material, such as a metal sheet, through a mold to cut out the button's shape.

[0003] Based on the above, the inventors have discovered the following problems: When using injection molds to mold plastic buttons, the buttons need to be cooled to solidify. However, current injection molds typically use water cooling to cool the buttons. Water cooling requires cooling channels to be set up in the lower mold base. If the cooling channel layout is not reasonable, the contact area and water flow rate of different parts of the lower mold base will be inconsistent, which will lead to different cooling rates at different parts of the button, generating internal stress, causing the button to deform, reduce dimensional accuracy, and even crack, affecting product quality.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a rapid cooling device for button forming molds in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a rapid cooling device for button forming molds to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A rapid cooling device for button molding molds includes a mold assembly, a cooling assembly, and an ejection assembly. The cooling assembly is located below the mold assembly, and the ejection assembly is located inside the mold assembly. The mold assembly is used for injection molding buttons, the cooling assembly is used to cool the injection-molded buttons inside the mold assembly, and the ejection assembly is used to eject the cooled buttons from the mold assembly. The cooling assembly includes a cooling box, with an air inlet box and an air outlet box installed on both sides of the upper end of the cooling box. A compressor, a condenser, a dryer, an expansion valve, and an evaporator are installed inside the cooling box. A first pipe connects the compressor, condenser, dryer, expansion valve, and evaporator, and a second pipe connects the evaporator and the compressor.

[0008] Furthermore, a square groove is provided on the top surface of the cooling box directly below the air inlet box. The cooling box and the air inlet box are connected through the square groove. A pair of round holes are provided on one side of the outer wall of the air inlet box and on both sides of the outer side of the exhaust box. A first fan is horizontally installed inside the air inlet box below the round holes, and a second fan is vertically installed inside the exhaust box.

[0009] The beneficial effect of adopting the above-mentioned further solution is that by setting a square groove, the air inlet box and the cooling box can be connected. By setting a round hole, the air inlet box, the cavity inside the lower mold base, and the air outlet box can be connected. When cold air is generated in the cooling box, the first fan in the air inlet box and the second fan in the air outlet box are activated, so that the air in the cooling box enters the cavity through the round hole on one side of the air inlet box and the through hole on the left side of the lower mold base, cooling the buttons in the button mold cavity. At the same time, the cold air is discharged through the through hole on the right side of the lower mold base and the round holes on both sides of the air outlet box, improving the airflow of cold air in the cavity of the lower mold base.

[0010] Furthermore, an installation groove is provided inside one end of the cooling box, and a filter screen is installed inside the installation groove.

[0011] The beneficial effect of adopting the above-mentioned further solution is that by setting up a filter, impurities, dust and other particles in the air entering the cooling box are filtered out, preventing these impurities from entering the cooling box and affecting the normal operation of components such as the compressor and condenser.

[0012] Furthermore, the mold assembly includes a lower mold base, which is installed on the top of the cooling box. The outer sides of the lower mold base are connected to the air inlet box and the air outlet box, respectively. The lower mold base has a cavity inside, and the outer sides of the lower mold base have through holes at the circular holes. The top of the lower mold base has several button-shaped mold cavities.

[0013] The beneficial effect of adopting the above-mentioned further solution is that, since the cooling box is connected to the air inlet box, and the lower mold base of the air inlet box is connected to the air outlet box through a round hole, the cold air generated by the cooling box can flow better in the lower mold base to cool the button in the button mold cavity. By setting the button mold cavity, during the injection molding process, the molten plastic is injected into the button mold cavity, and after cooling and solidification, it forms the shape of the button.

[0014] Furthermore, a first hydraulic rod is installed at each of the four outer corners of the lower mold base, and an upper mold base is installed at the movable end of the four first hydraulic rods. The upper mold base has a flow channel inside and an injection hole is opened on the outside of the upper mold base.

[0015] The beneficial effects of adopting the above-mentioned further solution are that by setting the first hydraulic rod, it is convenient to control the opening and closing of the upper mold base and the lower mold base, which facilitates the button injection molding operation. When the upper mold base and the lower mold base are closed, a closed injection space can be formed to ensure the smooth progress of the injection process. By setting the injection hole, it is convenient for the injection material to flow into the button mold cavity through the flow channel in the upper mold base.

[0016] Furthermore, the ejection assembly includes a pair of second hydraulic rods, the top ends of which are fixedly connected to the inner top end of the cavity, and a square plate is installed between the movable ends of the pair of second hydraulic rods. A plurality of ejector pins are installed on the upper end of the square plate, the top ends of which penetrate the cavity and are flush with the bottom end of the button mold cavity.

[0017] The beneficial effect of adopting the above-mentioned further solution is that, by setting a second hydraulic rod, after the button is injection molded and cooled, the second hydraulic rod is activated to retract its movable end, thereby moving the square plate upward and driving the ejector pin upward, which can push the button out of the button mold cavity.

[0018] Furthermore, the outer wall of the square plate is clearance-fitted with the inner wall of the cavity, and the outer wall of the ejector pins near the upper end is clearance-fitted with the through holes of the cavity. The central axis of the ejector pins is collinear with the central axis of the button mold cavity.

[0019] The beneficial effect of adopting the above-mentioned further solution is that, due to the clearance fit between the outer wall of the square plate and the inner wall of the cavity, the square plate can move stably.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: This rapid cooling device for button molding molds, by setting a square groove, allows the air inlet box and the cooling box to be connected. The round hole connects the air inlet box, the inner cavity of the lower mold base, and the air outlet box. The compressor's air inlet is connected to the storage tank storing refrigerant gas through an external pipe. The compressor draws in low-temperature, low-pressure refrigerant gas and compresses it into high-temperature, high-pressure gas. The high-temperature, high-pressure refrigerant gas enters the condenser, where it cools and condenses into a high-temperature, high-pressure liquid. The refrigerant liquid after passing through the condenser flows through a dryer to remove moisture and impurities from the refrigerant. The high-temperature, high-pressure refrigerant liquid, after drying, expands through the expansion valve into a low-temperature, low-pressure gas-liquid mixture. This low-temperature, low-pressure gas-liquid mixture enters the evaporator, where it absorbs heat from the air inside the cooling box and evaporates into a low-temperature, low-pressure gas. This creates cold air inside the cooling box, activating the first fan in the air inlet box and the second fan in the air outlet box. Under the action of the first fan, air from the cooling box enters the cavity through the round hole on one side of the air inlet box and the through hole on the left side of the lower mold base, cooling the buttons inside the button mold cavity. Simultaneously, the cold air is discharged through the through hole on the right side of the lower mold base and the round holes on both sides of the air outlet box, improving the airflow of cold air within the cavity of the lower mold base. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of a rapid cooling device for button forming mold provided by this utility model;

[0022] Figure 2 An exploded three-dimensional structural diagram of a mold assembly for a rapid cooling device for button molding molds provided by this utility model;

[0023] Figure 3 An exploded three-dimensional structural diagram of the cooling component of a rapid cooling device for button molding mold provided by this utility model;

[0024] Figure 4 A front cross-sectional view of the cooling box of a rapid cooling device for button forming mold provided by this utility model;

[0025] Figure 5 This is a front cross-sectional view of the lower mold base of a rapid cooling device for button forming molds provided by this utility model.

[0026] In the diagram: 1. Mold assembly; 11. Lower mold base; 12. First hydraulic rod; 13. Upper mold base; 14. Button mold cavity; 15. Cavity; 16. Through hole; 2. Cooling assembly; 21. Cooling box; 22. Square channel; 23. Air inlet box; 24. First fan; 25. Air outlet box; 26. Second fan; 27. Round hole; 28. Compressor; 29. ​​Condenser; 210. Dryer; 211. Expansion valve; 212. Evaporator; 213. Filter screen; 3. Ejector assembly; 31. Second hydraulic rod; 32. Square plate; 33. Ejector pin. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-5This utility model provides a technical solution: a rapid cooling device for a button molding mold, comprising a mold assembly 1, a cooling assembly 2, and an ejection assembly 3. The cooling assembly 2 is disposed below the mold assembly 1, and the ejection assembly 3 is disposed inside the mold assembly 1. The mold assembly 1 is used for injection molding buttons, the cooling assembly 2 is used for cooling the buttons injection molded inside the mold assembly 1, and the ejection assembly 3 is used for ejecting the cooled buttons from the mold assembly 1. The cooling assembly 2 includes a cooling box 21, with an air inlet box 23 and an air outlet box 25 respectively installed on both sides of the upper end of the cooling box 21. Inside the cooling box 21, a compressor 28, a condenser 29, a dryer 210, an expansion valve 211, and an evaporator 212 are installed, and the compressor 28, condenser 29, dryer 210, expansion valve 211, and evaporator 212 are connected. A first pipe connects the evaporator 212 and the compressor 28, while a second pipe connects the compressor 28's inlet to a storage tank containing refrigerant gas via an external pipe. The compressor 28 draws in low-temperature, low-pressure refrigerant gas and compresses it into high-temperature, high-pressure gas. This high-temperature, high-pressure refrigerant gas enters the condenser 29, where it cools and condenses into a high-temperature, high-pressure liquid. The refrigerant liquid after passing through the condenser 29 flows through the dryer 210 to remove moisture and impurities. The dried, high-temperature, high-pressure refrigerant liquid expands through the expansion valve 211 into a low-temperature, low-pressure gas-liquid mixture. This low-temperature, low-pressure gas-liquid mixture enters the evaporator 212, where it absorbs heat from the air inside the cooling tank 21 and evaporates into a low-temperature, low-pressure gas, thus achieving the refrigeration purpose. The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Please see Figures 1-5This utility model provides a technical solution: a square groove 22 is formed on the top surface of the cooling box 21 directly below the air inlet box 23. The cooling box 21 and the air inlet box 23 are connected through the square groove 22. A pair of round holes 27 are formed on one side of the outer wall of the air inlet box 23 and on both sides of the outer side of the exhaust box. A first fan 24 is horizontally installed inside the air inlet box 23 below the round holes 27. A second fan 26 is vertically installed inside the exhaust box 25. A mounting groove is formed inside one end of the cooling box 21. The mold assembly 1 includes a lower mold base 11, which is installed with a filter screen 213. The lower mold base 11 is mounted on the top of the cooling box 21, and its outer sides are connected to the air inlet box 23 and the air outlet box 25, respectively. The lower mold base 11 has a cavity 15 inside, and its outer sides have through holes 16 at the circular holes 27. The top of the lower mold base 11 has several button-shaped mold cavities 14. By setting square grooves 22, the air inlet box 23 and the cooling box 21 can be connected, and the circular holes can be used to communicate with each other. The arrangement of 27 connects the air inlet box 23, the cavity 15 inside the lower mold base 11, and the air outlet box 25. When cold air is generated inside the cooling box 21, the first fan 24 inside the air inlet box 23 and the second fan 26 inside the air outlet box 25 are activated. This allows air from the cooling box 21 to enter the cavity 15 through the round hole 27 on one side of the air inlet box 23 and the through hole 16 on the left side of the lower mold base 11, cooling the buttons inside the button mold cavity 14. At the same time, the cold air then passes through the through hole 16 on the right side of the lower mold base 11 and the air outlet box. The round holes 27 on both sides of 25 discharge cold air, improving the airflow in the cavity 15 of the lower mold base 11. Since the cooling box 21 is connected to the air inlet box 23, and the air inlet box 23 is connected to the lower mold base 11 and the air outlet box 25 through the round holes 27 and the through holes 16, the cold air generated by the cooling box 21 can flow better in the lower mold base 11 to cool the button in the button mold cavity 14. By setting the button mold cavity 14, during the injection molding process, molten plastic is injected into the button mold cavity 14, and after cooling and solidification, it forms the shape of a button.

[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 Figures 1-5This utility model provides a technical solution: First hydraulic rods 12 are installed at the four outer corners of the lower mold base 11. An upper mold base 13 is installed at the movable ends of the four first hydraulic rods 12. The upper mold base 13 has a flow channel inside and an injection hole on its exterior. The ejector assembly 3 includes a pair of second hydraulic rods 31. The top ends of the pair of second hydraulic rods 31 are fixedly connected to the inner top end of the cavity 15. A square plate 32 is installed between the movable ends of the pair of second hydraulic rods 31. Several ejector pins 33 are installed on the upper end of the square plate 32. The top ends of the ejector pins 33 penetrate the cavity 15, and the top ends of the ejector pins 33 are flush with the bottom end of the button mold cavity 14. The outer wall of the square plate 32 is clearance-fitted with the inner wall of the cavity 15. The ejector pins 33 are positioned near... The upper outer wall is fitted with the through hole of the cavity 15 with a clearance fit. The central axis of several ejector pins 33 is collinear with the central axis of several button mold cavities 14. By setting the first hydraulic rod 12, it is easy to control the opening and closing of the upper mold base 13 and the lower mold base 11, which facilitates the button injection molding operation. When the upper mold base 13 and the lower mold base 11 are closed, a closed injection space can be formed to ensure the smooth progress of the injection process. By setting the injection hole, the injection material can flow into the button mold cavity 14 through the flow channel in the upper mold base 13. By setting the second hydraulic rod 31, after the button is injected and cooled, the second hydraulic rod 31 is activated to retract its movable end, so that the square plate 32 moves upward and drives the ejector pins 33 to move upward. The ejector pins 33 can push the button out of the button mold cavity 14.

[0032] Specifically, the working principle of this rapid cooling device for button molding molds is as follows: When the upper mold base 13 and lower mold base 11 are closed, a closed injection space is formed. The injection material flows through the injection hole into the button mold cavity 14 via the flow channel within the upper mold base 13. The air inlet of the compressor 28 is connected to the storage tank for refrigerant gas via an external pipe. The compressor 28 draws in low-temperature, low-pressure refrigerant gas and compresses it into high-temperature, high-pressure gas. The high-temperature, high-pressure refrigerant gas enters the condenser 29, where it cools and condenses into a high-temperature, high-pressure liquid. After passing through the condenser 29, the refrigerant liquid flows through the dryer 210 to remove moisture and impurities. The dried high-temperature, high-pressure refrigerant liquid expands through the expansion valve 211 into a low-temperature, low-pressure gas-liquid mixture. This low-temperature, low-pressure gas-liquid mixture then enters the evaporator... In device 212, the refrigerant absorbs heat from the air inside the cooling box 21 and evaporates into a low-temperature, low-pressure gas, causing cold air to form inside the cooling box 21. This activates the first fan 24 in the air inlet box 23 and the second fan 26 in the air outlet box 25, allowing air from the cooling box 21 to enter the cavity 15 through the round hole 27 on one side of the air inlet box 23 and the through hole 16 on the left side of the lower mold base 11, cooling the buttons in the button mold cavity 14. At the same time, the cold air is discharged through the through hole 16 on the right side of the lower mold base 11 and the round holes 27 on both sides of the air outlet box 25, improving the airflow of cold air in the cavity 15 of the lower mold base 11. Since the cooling box 21 is connected to the air inlet box 23, and the air inlet box 23 is connected to the lower mold base 11 and the air outlet box 25 through the round hole 27 and the through hole 16, the cold air generated by the cooling box 21 can flow better in the lower mold base 11 to cool the buttons in the button mold cavity 14.

Claims

1. A rapid cooling device for a button forming mold, characterized in that, The assembly includes a mold assembly (1), a cooling assembly (2), and an ejection assembly (3). The cooling assembly (2) is located below the mold assembly (1), and the ejection assembly (3) is located inside the mold assembly (1). The mold assembly (1) is used for injection molding buttons. The cooling assembly (2) is used to cool the buttons injection molded inside the mold assembly (1). The ejection assembly (3) is used to eject the cooled buttons from the mold assembly (1). The cooling assembly (2) includes a cooling box (21). An air inlet box (23) and an air outlet box (25) are respectively installed on the upper two sides of the cooling box (21). Inside the cooling box (21) are a compressor (28), a condenser (29), a dryer (210), an expansion valve (211), and an evaporator (212). A first pipe connects the compressor (28), the condenser (29), the dryer (210), the expansion valve (211), and the evaporator (212). A second pipe connects the evaporator (212) and the compressor (28).

2. The rapid cooling device for a button forming mold according to claim 1, characterized in that, The top surface of the cooling box (21) is provided with a square groove (22) directly below the air inlet box (23). The cooling box (21) and the air inlet box (23) are connected through the square groove (22). A pair of round holes (27) are provided on one side of the outer wall of the air inlet box (23) and on both sides of the outer side of the air outlet box. A first fan (24) is horizontally installed inside the air inlet box (23) below the round holes (27). A second fan (26) is vertically installed inside the air outlet box (25).

3. The rapid cooling device for a button forming mold according to claim 2, characterized in that, An installation groove is provided inside one end of the cooling box (21), and a filter screen (213) is installed inside the installation groove.

4. The rapid cooling device for a button forming mold according to claim 3, characterized in that, The mold assembly (1) includes a lower mold base (11), which is installed on the top of the cooling box (21). The outer sides of the lower mold base (11) are connected to the air inlet box (23) and the air outlet box (25) respectively. The lower mold base (11) has a cavity (15) inside, and the outer sides of the lower mold base (11) have through holes (16) at the circular hole (27). The top of the lower mold base (11) has a plurality of button mold cavities (14).

5. The rapid cooling device for a button forming mold according to claim 4, characterized in that, The lower mold base (11) is equipped with a first hydraulic rod (12) at each of its four outer corners. The upper mold base (13) is installed at the movable end of the four first hydraulic rods (12). The upper mold base (13) is provided with a flow channel and an injection hole is provided on the outside of the upper mold base (13).

6. The rapid cooling device for a button forming mold according to claim 5, characterized in that, The ejection assembly (3) includes a pair of second hydraulic rods (31), the top ends of the pair of second hydraulic rods (31) are fixedly connected to the inner top end of the cavity (15), a square plate (32) is installed between the movable ends of the pair of second hydraulic rods (31), a plurality of ejector pins (33) are installed on the upper end of the square plate (32), the top ends of the plurality of ejector pins (33) penetrate the cavity (15), and the top ends of the ejector pins (33) are flush with the bottom end of the button mold cavity (14).

7. A rapid cooling device for a button forming mold according to claim 6, characterized in that, The outer wall of the square plate (32) is clearance-fitted with the inner wall of the cavity (15), and the outer wall of the ejector pins (33) near the upper end is clearance-fitted with the through hole of the cavity (15). The central axis of the ejector pins (33) is collinear with the central axis of the button mold cavity (14).

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