WO2022000910A1

WO2022000910A1 - Injection mold capable of quickly dissipating heat

Info

Publication number: WO2022000910A1
Application number: PCT/CN2020/126946
Authority: WO
Inventors: 王昌彦
Original assignee: 苏州千腾精密模具有限公司
Priority date: 2020-07-03
Filing date: 2020-11-06
Publication date: 2022-01-06
Also published as: CN213006403U

Abstract

An injection mold capable of quickly dissipating heat, the injection mold comprising a lower mold and an upper mold. A fan is fixedly mounted at a middle end of the right side of the lower mold, an output end of the fan is connected to a ventilation pipeline, the ventilation pipeline is positioned in an inner cavity of the lower mold, two ends of the top of the lower mold are fixedly connected to supports, a middle end of an inner cavity of each support is fixedly connected to a fixing column, two ends of the fixing column are movably connected to movable rods, the tops of the movable rods are fixedly connected to limiting blocks, inner sides of the limiting blocks are fixedly connected to a spring, and a pump is fixedly mounted at the top of the upper mold. When the lower mold and the upper mold are combined for injection molding work, within a period of time before a finished product is taken out after the work is finished, a worker injects a cooling liquid into a groove through a water injection port, the pump is started to work by means of an external controller, and by means of the pump, the cooling liquid is conveyed into a return pipe from the groove through a hose and a water pipe, such that the effect of quick heat dissipation is achieved.

Description

A fast heat dissipation injection mold

technical field

The utility model relates to the technical field of injection moulds, in particular to an injection mould for rapid heat dissipation.

Background technique

Injection molding is a method of producing shapes for industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding molding method and die-casting method. Injection molding machine (referred to as injection machine or injection molding machine) is a thermoplastic or thermosetting material. The main molding equipment of the product, the injection molding is realized by the injection molding machine and the mold. During the injection molding process of the existing mold, a lot of heat will be generated after the product is formed. I was burned when taking the finished product. For this reason, we propose an injection mold that can quickly dissipate heat.

Utility model content

The purpose of the utility model is to provide a rapid heat dissipation injection mold, which has the advantages of heat dissipation, and solves the problem that a large amount of heat will be generated in the existing mold during the injection molding process after the product is formed, and the mold needs to be dissipated in order to improve work efficiency. Avoid the problem of being scalded when the staff takes the finished product.

In order to achieve the above purpose, the present invention provides the following technical solutions: an injection mold for rapid heat dissipation, comprising a lower mold and an upper mold, a fan is fixedly installed at the middle end of the right side of the lower mold, and an output end of the fan is connected with a fan. a ventilation duct, the ventilation duct is located in the inner cavity of the lower mold, the top ends of the lower mold are fixedly connected with brackets, the middle end of the inner cavity of the bracket is fixedly connected with a fixed column, and both ends of the fixed column are movable A movable rod is connected, the top of the movable rod is fixedly connected to a limit block, the inner side of the limit block is fixedly connected with a spring, the top of the upper mold is fixedly installed with a pump, and the inner cavity of the upper mold is opened There is a groove, the left end of the pump is fixedly connected with a water pipe, the bottom of the water pipe is threadedly connected with a hose, the bottom of the hose penetrates the top of the upper mold and extends to the inside of the groove, the pump is The output end is connected with a return pipe, and the return pipe is located in the inner cavity of the upper mold.

Preferably, the bottom of the upper die is located at the vertical position of the bracket with a clamping slot, the two sides of the clamping slot are provided with limit slots, and the outer surface of the limit block is used in cooperation with the limit slots.

Preferably, the shape of the ventilation duct is convex, and the bottom of the convex part is provided with a conical movable block, and the upper and lower ends of the inner cavity of the ventilation duct are fixedly connected with fixed blocks. The right end penetrates the inner cavity of the lower mold and extends to the right outer surface of the lower mold.

Preferably, the output end of the return pipe is communicated with the groove, the surface of the return pipe is sleeved with a refrigeration module, the bottom of the return pipe is provided with a heat conduction block, and the bottom of the heat conduction block is connected to the inner cavity of the upper mold. The bottom is closely fitted, and a through hole is formed at the upper left end of the inner cavity of the groove.

Preferably, a water injection port is provided on the top of the groove, and a sealing cover is threadedly connected to the top of the water injection port.

Compared with the prior art, the beneficial effects of the present utility model are as follows:

1. In the present invention, when the lower mold and the upper mold are combined for injection molding, a period of time before the end of the work to take the finished product, people inject the cooling liquid into the groove through the water injection port, and start the pump through the external controller to work. The pump transports the cooling liquid from the groove to the return pipe through the hose and the water pipe, and absorbs most of the heat energy through the setting of the heat transfer block, and the cooling liquid passes through the bottom of the cooling module (when the heat transfer block is above), the cooling liquid The heat energy will be consumed, and the cooling liquid after absorbing the heat energy will be cooled by the cooling module to achieve the effect of cooling the upper mold, and then the external controller will start the fan to work, and the air will be compressed by the fan to form an airflow, which will be transported by the fan Inlet ventilation duct, through the setting of the conical movable block, when the flowing air passes through the conical movable block, it will pass through the convex part above, and the heat energy of the convex part will be taken away by the air flow to dissipate the heat of the lower mold, and then pass through the ventilation The duct discharges the hot air to achieve the effect of rapid heat dissipation.

2. Through the arrangement of the conical movable block, the air will pass through the convex part of the ventilation duct to increase the effect of heat dissipation. Through the arrangement of the through holes, when the cooling liquid is injected, the cooling liquid can be identified through the through holes. It will overflow through the through hole, stop injecting the coolant at this time, and ventilate and dissipate the coolant through the through hole. Through the cooperation of the spring and the limit block, when the lower mold and the upper mold are clamped, the limit block will move toward the mold. The inner side moves to deform the spring. When passing through the limit slot, the spring reacts and pushes the limit block against the limit slot. The upper mold can be positioned through the bracket, which improves the clamping speed of the lower mold and the upper mold, and indirectly improves the work efficiency.

Description of drawings

Fig. 1 is the front view of the structure of the utility model;

Fig. 2 is the structural sectional view of the utility model;

3 is a partial enlarged view of the structure A of the present invention.

In the figure: 1. Lower die; 2. Bracket; 3. Upper die; 4. Water injection port; 5. Pump; 6. Water pipe; 7. Through hole; 8. Hose; 9. Fixed column; 10. Fan; 11. Ventilation duct; 12. Conical movable block; 13. Fixed block; 14. Thermal block; 15. Refrigeration module; 16. Return pipe; 17. Spring; 18. Limit block;

detailed description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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 implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "provided with", "connected", etc., should be understood in a broad sense, for example, "connected" may be a fixed connection It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The utility model has a lower mold 1, a bracket 2, an upper mold 3, a water injection port 4, a pump 5, a water pipe 6, a through hole 7, a hose 8, a fixed column 9, a fan 10, a ventilation pipe 11, and a conical movable block 12. , the fixed block 13, the heat conduction block 14, the refrigeration module 15, the return pipe 16, the spring 17, the limit block 18 and the movable rod 19 are all common standard parts or parts known to those skilled in the art, and their structures and principles are the same It can be known by technical personnel through technical manuals or through routine experimental methods.

Please refer to Fig. 1-3, an injection mold for rapid heat dissipation, including a lower mold 1 and an upper mold 3, a fan 10 is fixedly installed at the middle end of the right side of the lower mold 1, and a ventilation duct 11 is connected to the output end of the fan 10 for ventilation. The shape of the duct 11 is convex, and the bottom of the convex part is provided with a conical movable block 12. Through the setting of the conical movable block 12, the air will pass through the convex part of the ventilation duct 11 to increase the effect of heat dissipation and ventilation. The upper and lower ends of the inner cavity of the duct 11 are fixedly connected with a fixing block 13 . In the cavity, a bracket 2 is fixedly connected to both ends of the top of the lower mold 1, a fixed column 9 is fixedly connected to the middle end of the inner cavity of the bracket 2, and a movable rod 19 is movably connected to both ends of the fixed column 9, and the top of the movable rod 19 is fixedly connected. The limit block 18 is fixedly connected to the inner side of the limit block 18 with a spring 17. Through the cooperation of the spring 17 and the limit block 18, the limit block 18 will move to the inside when the lower mold 1 and the upper mold 3 are closed. The spring 17 is deformed. When the spring 17 passes through the limit slot, the spring 17 reacts and pushes the limit block 18 against the limit slot. The upper die 3 can be positioned through the bracket 2, and the clamping speed of the lower die 1 and the upper die 3 can be increased. , to indirectly improve the work efficiency. The bottom of the upper die 3 is located at the vertical position of the bracket 2 with a card slot, and the two sides of the card slot are provided with limit slots. The outer surface of the limit block 18 is used in conjunction with the limit slots. The upper mold 3 A pump 5 is fixedly installed on the top of the upper mold 3, a groove is opened in the inner cavity of the upper die 3, a water injection port 4 is arranged on the top of the groove, and the top of the water injection port 4 is screwed with a sealing cover, and the left end of the pump 5 is fixedly connected with a The water pipe 6, the bottom of the water pipe 6 is screwed with a hose 8, the bottom of the hose 8 penetrates the top of the upper die 3 and extends to the inside of the groove, the output end of the pump 5 is connected with a return pipe 16, and the output of the return pipe 16 The end is communicated with the groove, the surface of the return pipe 16 is sleeved with the refrigeration module 15, the bottom of the return pipe 16 is provided with a heat conduction block 14, the bottom of the heat conduction block 14 is closely fitted with the bottom of the inner cavity of the upper mold 3, and the inner part of the groove There is a through hole 7 at the upper end of the left side of the cavity. Through the setting of the through hole 7, when the cooling liquid is injected, it can be identified through the through hole 7, and the cooling liquid will overflow through the through hole 7. At this time, the injection of the cooling liquid is stopped. The through holes 7 ventilate and dissipate the cooling liquid, and the return pipe 16 is located in the inner cavity of the upper mold 3 .

In use, when the lower mold 1 and the upper mold 3 are combined for injection molding, before the end of the work to take the finished product, people inject the coolant into the groove through the water injection port 4, and start the pump 5 through the external controller to work. , the cooling liquid is transported from the groove through the hose 8 and the water pipe 6 to the return pipe 16 by the pump 5, and most of the heat energy is absorbed by the setting of the heat conduction block 14, and the cooling liquid passes through the bottom of the refrigeration module 15 (heat conduction). The cooling liquid will consume the heat energy, and the cooling liquid after absorbing the heat energy will be cooled by the cooling module 15, so as to achieve the effect of cooling the upper mold 3, and then the external controller will start the fan 10 to work , the air is compressed by the fan 10 to form an air flow, which is transported into the ventilation duct 11 through the fan 10, and through the setting of the conical movable block 12, when the flowing air passes through the conical movable block 12, it will pass through the convex part above, and the convex The heat energy of the part is taken away by the air flow to dissipate the heat of the lower mold 1, and then the hot air is discharged through the ventilation duct 11 to achieve the effect of rapid heat dissipation, which solves the problem that a large amount of heat will be generated after the product is formed during the injection molding process of the existing mold. , in order to improve work efficiency, it is necessary to dissipate heat from the mold to avoid the problem of being scalded when the staff takes the finished product (in this application, the external controller is a PLC controller, and at the same time, the two terminals of the external controller are connected with a power supply through wires. plug, and commercial power is used for power supply in this application).

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

An injection mold for rapid heat dissipation, comprising a lower mold (1) and an upper mold (3), characterized in that a fan (10) is fixedly installed at the middle end of the right side of the lower mold (1), and the fan (10) ) is connected with a ventilation duct (11), the ventilation duct (11) is located in the inner cavity of the lower mold (1), and the top ends of the lower mold (1) are fixedly connected with brackets (2), The middle end of the inner cavity of the bracket (2) is fixedly connected with a fixed column (9), both ends of the fixed column (9) are movably connected with a movable rod (19), and the fixed connection at the top of the movable rod (19) is limited. A position block (18), a spring (17) is fixedly connected to the inner side of the limit block (18), a pump (5) is fixedly installed on the top of the upper mold (3), and a pump (5) is fixed on the top of the upper mold (3). A groove is provided in the inner cavity, a water pipe (6) is fixedly connected to the left end of the pump (5), a hose (8) is threadedly connected to the bottom of the water pipe (6), and the hose (8) is The bottom penetrates the top of the upper die (3) and extends to the inside of the groove, the output end of the pump (5) is connected with a return pipe (16), and the return pipe (16) is located inside the upper die (3). in the cavity.
The injection mold for rapid heat dissipation according to claim 1, characterized in that: the bottom of the upper mold (3) is located at a vertical position of the bracket (2) and has a slot, and the slots have limited openings on both sides of the slot. A position groove, the outer surface of the position limit block (18) is used in cooperation with the position limit groove.
The injection mold for rapid heat dissipation according to claim 1, characterized in that: the shape of the ventilation duct (11) is convex, and the bottom of the convex part is provided with a conical movable block (12), so The upper and lower ends of the inner cavity of the ventilation duct (11) are fixedly connected with a fixing block (13), and the right end of the ventilation duct (11) penetrates the inner cavity of the lower mold (1) and extends to the bottom of the lower mold (1). Right outer surface.
The injection mold for rapid heat dissipation according to claim 1, wherein the output end of the return pipe (16) is communicated with the groove, and the surface of the return pipe (16) is sleeved with a cooling module (15). ), the bottom of the return pipe (16) is provided with a heat-conducting block (14), the bottom of the heat-conducting block (14) is in close contact with the bottom of the inner cavity of the upper mold (3), and the inner cavity of the groove is left The upper end of the side is provided with a through hole (7).
A rapid heat dissipation injection mold according to claim 1, characterized in that: the top of the groove is provided with a water injection port (4), and the top of the water injection port (4) is screwed with a sealing cover.