Rapid heat dissipation injection mold

Abstract

The utility model discloses a rapid heat dissipation injection mold which comprises a lower mold and an upper mold, the upper mold is arranged above the lower mold; the plastic forming die has the advantages that cooling liquid is conveyed into the spiral cold water guide pipe, the temperature of the upper female die is reduced through the spiral cold water guide pipe, and heated and melted plastic is cooled and solidified, the plastic is cooled and solidified through the cold water guide coil pipe and the water passing cavity, so that the plastic is cooled and solidified, and the plastic is cooled and solidified through the cooling coil pipe and the water passing cavity. Cooling liquid entering the water passing cavity through the third liquid inlet pipe and the second liquid inlet pipe enters the cold guiding coil pipe through the water passing cavity, cooling treatment is conducted on materials on the top of the lower male die through the water passing cavity and the cold guiding coil pipe, and the finished product forming efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and specifically relates to a rapid heat dissipation injection mold. Background Art

[0002] An injection mold is a high-precision manufacturing tool. By injecting molten plastic material into the mold and subjecting it to pressurization and cooling, plastic products with the required shape and size are finally formed. It is an indispensable part of modern manufacturing and is widely used in the manufacture of various plastic products, such as plastic cups, plastic plates, plastic toys, automotive parts, etc. In existing injection molds, since the molten plastic needs some time to cool and solidify after being poured into the mold, heat accumulates in the injection mold. Most injection molds are cooled by blowing air with a fan, and the cooling time for the upper mold and the lower mold is relatively long, resulting in low efficiency of finished product forming. Content of the Utility Model

[0003] The purpose of the utility model is to provide a rapid heat dissipation injection mold to solve the problem in the above-mentioned background art that in existing injection molds, since the molten plastic needs some time to cool and solidify after being poured into the mold, heat accumulates in the injection mold. Most injection molds are cooled by blowing air with a fan, and the cooling time for the upper mold and the lower mold is relatively long, resulting in low efficiency of finished product forming.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A rapid heat dissipation injection mold, comprising:

[0005] A lower mold;

[0006] An upper mold, which is arranged above the lower mold;

[0007] A lower punch, which is arranged on the top of the lower mold;

[0008] An upper female mold, which is arranged at the bottom of the lower mold;

[0009] A heat conduction coil pipe, which is arranged inside the lower punch. A water passing cavity is opened inside the lower punch, and one end of the heat conduction coil pipe is communicated with the water passing cavity;

[0010] Heat dissipation fins, which are symmetrically arranged inside the lower punch. Ventilation ducts matching the heat dissipation fins are symmetrically opened at the top of the lower mold;

[0011] A spiral heat conduction water pipe, which is arranged inside the upper female mold.

[0012] As a preferred embodiment of the present utility model: One end of the spiral cooling water pipe is fixedly connected to a first liquid inlet pipe, the first liquid inlet pipe is fixedly connected to the upper female mold, the first liquid inlet pipe is fixedly connected to the upper mold, the other end of the spiral cooling water pipe is fixedly connected to a first liquid outlet pipe, the first liquid outlet pipe is fixedly connected to the upper female mold, and the first liquid outlet pipe is fixedly connected to the upper mold.

[0013] As a preferred embodiment of the present utility model: A third liquid outlet pipe is fixedly connected inside the lower male mold, one end of the third liquid outlet pipe is fixedly connected to the cooling coil, a second liquid outlet pipe is fixedly connected inside the lower mold and the lower male mold, and the other end of the third liquid outlet pipe is fixedly connected to the second liquid outlet pipe.

[0014] As a preferred embodiment of the present utility model: A second liquid inlet pipe is fixedly connected inside the lower male mold, the top end of the second liquid inlet pipe is communicated with the water passing cavity, the bottom end of the second liquid inlet pipe is fixedly connected to a third liquid inlet pipe, and the third liquid inlet pipe is fixedly connected to the lower mold.

[0015] As a preferred embodiment of the present utility model: Air inlets are provided on both sides of the lower mold, and the air inlets are communicated with the ventilation ducts.

[0016] As a preferred embodiment of the present utility model: Fans cooperating with the air inlets are installed on both sides of the lower mold.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a spiral cooling water pipe, the present utility model realizes the transportation of the coolant into the spiral cooling water pipe, and the temperature of the upper female mold is reduced by the spiral cooling water pipe to cool and solidify the melted plastic. By providing a cooling coil and a water passing cavity, the coolant entering the water passing cavity through the third liquid inlet pipe and the second liquid inlet pipe enters the cooling coil through the water passing cavity, and the top material of the lower male mold is cooled through the water passing cavity and the cooling coil, improving the finished product forming efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a bottom view of the present utility model;

[0020] Figure 3 is a schematic diagram of the internal structure of the upper female mold of the present utility model;

[0021] Figure 4 is a schematic diagram of the internal structure of the lower male mold of the present utility model;

[0022] Figure 5 is a schematic diagram of the overall structure of the cooling coil of the present utility model;

[0023] Figure 6This is a schematic diagram of the air inlet structure of the present utility model.

[0024] In the figure: 1. Lower mold; 2. Lower punch; 3. Upper mold; 4. Upper female die; 5. Ventilation duct; 6. Heat dissipation fins; 7. Spiral cold-conducting water pipe; 8. First liquid inlet pipe; 9. First liquid outlet pipe; 10. Water passage cavity; 11. Cold-conducting coil; 12. Second liquid outlet pipe; 13. Second liquid inlet pipe; 14. Third liquid inlet pipe; 15. Third liquid outlet pipe; 16. Fan; 17. Air inlet. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 to 6 , the present utility model provides a technical solution: a fast heat dissipation injection mold, including: a lower mold 1; an upper mold 3 is arranged above the lower mold 1; a lower punch 2 is fixedly connected to the top of the lower mold 1; an upper female die 4 is fixedly connected to the bottom of the lower mold 1; a cold-conducting coil 11 is fixedly connected inside the lower punch 2, a water passage cavity 10 is formed inside the lower punch 2, and one end of the cold-conducting coil 11 communicates with the water passage cavity 10; heat dissipation fins 6 are symmetrically fixedly connected inside the lower punch 2, and ventilation ducts 5 are symmetrically formed at the top of the lower mold 1 and are matched with the heat dissipation fins 6; a spiral cold-conducting water pipe 7 is fixedly connected inside the upper female die 4.

[0027] It can be understood that the present utility model injects plastic through the injection port in the upper mold 3, the upper mold 3 and the lower mold 1 are combined, the injection plastic is formed by the upper female die 4 and the lower punch 2, the fan 16 blows air into the air inlet 17, the air is exhausted through the ventilation duct 5, and the heat dissipation fins 6 inside the lower punch 2 are assisted in heat dissipation. The external is connected to a condensate pipe, condensate is injected into the spiral cold-conducting water pipe 7 through the first liquid inlet pipe 8, the upper female die 4 is cooled by the condensate flowing through the spiral cold-conducting water pipe 7, and is discharged through the first liquid outlet pipe 9. The upper female die 4 cools the formed plastic. Condensate is input into the second liquid inlet pipe 13 through the third liquid inlet pipe 14, the condensate enters the water passage cavity 10, the condensate in the water passage cavity 10 enters the cold-conducting coil 11, and the condensate in the cold-conducting coil 11 enters the second liquid outlet pipe 12 through the third liquid outlet pipe 15. The lower punch 2 is cooled by the water passage cavity 10 and the cold-conducting coil 11, and the plastic is cooled and solidified.

[0028] Please refer to Figure 3, one end of the spiral cooling water pipe 7 is fixedly connected to a first liquid inlet pipe 8. The first liquid inlet pipe 8 is fixedly connected to the upper female die 4 and the upper die 3. The other end of the spiral cooling water pipe 7 is fixedly connected to a first liquid outlet pipe 9. The first liquid outlet pipe 9 is fixedly connected to the upper female die 4 and the upper die 3.

[0029] It can be understood that in this utility model, the condensate is injected into the spiral cooling water pipe 7 through the first liquid inlet pipe 8. The condensate flowing through the spiral cooling water pipe 7 cools the upper female die 4 and is discharged through the first liquid outlet pipe 9. The upper female die 4 cools the molded plastic, improving the cooling efficiency of the molded plastic.

[0030] Please refer to Figures 4 to 5 , a third liquid outlet pipe 15 is fixedly connected inside the lower male die 2. One end of the third liquid outlet pipe 15 is fixedly connected to the cooling coil 11. A second liquid outlet pipe 12 is fixedly connected inside the lower die 1 and the lower male die 2. The other end of the third liquid outlet pipe 15 is fixedly connected to the second liquid outlet pipe 12.

[0031] It can be understood that in this utility model, the condensate enters the water passing cavity 10. The condensate in the water passing cavity 10 enters the cooling coil 11. The condensate in the cooling coil 11 enters the second liquid outlet pipe 12 through the third liquid outlet pipe 15. The lower male die 2 is cooled through the water passing cavity 10 and the cooling coil 11, cooling and solidifying the plastic to prevent heat from accumulating in the lower male die 2 and improving the forming efficiency of the plastic product.

[0032] Please refer to Figures 4 to 5 , a second liquid inlet pipe 13 is fixedly connected inside the lower male die 2. The top end of the second liquid inlet pipe 13 is communicated with the water passing cavity 10. The bottom end of the second liquid inlet pipe 13 is fixedly connected to a third liquid inlet pipe 14. The third liquid inlet pipe 14 is fixedly connected to the lower die 1.

[0033] It can be understood that in this utility model, the condensate is input into the second liquid inlet pipe 13 through the third liquid inlet pipe 14. The condensate enters the water passing cavity 10, cooling and lowering the temperature of the lower male die 2 through the coolant. The top material of the lower male die 2 is cooled through the water passing cavity 10 and the cooling coil 11, improving the forming efficiency of the finished product.

[0034] Please refer to Figure 6 , air inlets 17 are provided on both sides of the lower die 1. The air inlets 17 are communicated with the ventilation duct 5.

[0035] It can be understood that in this utility model, the air inlets 17 are communicated with the ventilation duct 5, and the ventilation duct 5 conducts ventilation and heat dissipation treatment on each heat dissipation fin 6.

[0036] Please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 andFigure 6 On both sides of the lower mold 1, fans 16 cooperating with the air inlets 17 are installed.

[0037] It can be understood that in the present utility model, the fans 16 blow air into the air inlets 17. The air enters the ventilation ducts 5 through the air inlets 17, and blows on each heat dissipation fin 6 in the ventilation ducts 5 for heat dissipation treatment, and the hot air is discharged through the ventilation ducts 5.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0039] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0040] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "set", "connected", "fixed", "swivelly connected", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A rapid heat dissipation injection mold, characterized in that: include: Lower mold (1); An upper mold (3), the upper mold (3) is arranged above the lower mold (1); A lower punch (2), the lower punch (2) being arranged on the top of the lower mold (1); An upper concave die (4), the upper concave die (4) being arranged at the bottom of the lower die (1); A cooling coil (11), the cooling coil (11) is arranged inside the lower convex mold (2), a water passage cavity (10) is provided inside the lower convex mold (2), and one end of the cooling coil (11) is connected to the water passage cavity (10); Heat dissipation fins (6), the heat dissipation fins (6) are symmetrically arranged inside the lower punch (2), and the top of the lower mold (1) is symmetrically provided with ventilation ducts (5) that cooperate with the heat dissipation fins (6); A spiral cooling water pipe (7) is arranged inside the upper concave die (4).

2. A rapid heat dissipation injection mold according to claim 1, characterized in that: One end of the spiral cooling water pipe (7) is fixedly connected to a liquid inlet pipe (8), the liquid inlet pipe (8) is fixedly connected to the upper die (4), the liquid inlet pipe (8) is fixedly connected to the upper mold (3), and the other end of the spiral cooling water pipe (7) is fixedly connected to a liquid outlet pipe (9), the liquid outlet pipe (9) is fixedly connected to the upper die (4), and the liquid outlet pipe (9) is fixedly connected to the upper mold (3).

3. A rapid heat dissipation injection mold according to claim 1, characterized in that: A No. 3 liquid outlet pipe (15) is fixedly connected inside the lower punch (2), one end of the No. 3 liquid outlet pipe (15) is fixedly connected to the cooling coil (11), and a No. 2 liquid outlet pipe (12) is fixedly connected inside the lower mold (1) and the lower punch (2), the other end of the No. 3 liquid outlet pipe (15) is fixedly connected to the No. 2 liquid outlet pipe (12).

4. A rapid heat dissipation injection mold according to claim 1, characterized in that: A No. 2 liquid inlet pipe (13) is fixedly connected to the interior of the lower punch (2), the top end of the No. 2 liquid inlet pipe (13) is connected to the water passage cavity (10), the bottom end of the No. 2 liquid inlet pipe (13) is fixedly connected to a No. 3 liquid inlet pipe (14), and the No. 3 liquid inlet pipe (14) is fixedly connected to the lower mold (1).

5. The rapid heat dissipation injection mold according to claim 1, characterized in that: Air inlets (17) are provided on both sides of the lower mold (1), and the air inlets (17) are connected to the ventilation duct (5).

6. A rapid heat dissipation injection mold according to claim 5, characterized in that: Fans (16) cooperating with air inlets (17) are installed on both sides of the lower mold (1).

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