CN223763721U - A cooling mechanism for injection molds - Google Patents
A cooling mechanism for injection moldsInfo
- Publication number
- CN223763721U CN223763721U CN202520159835.5U CN202520159835U CN223763721U CN 223763721 U CN223763721 U CN 223763721U CN 202520159835 U CN202520159835 U CN 202520159835U CN 223763721 U CN223763721 U CN 223763721U
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Abstract
本实用新型涉及注塑模具技术领域，具体的是一种注塑模具的冷却机构，本实用新型包括底板与储水桶，底板上端表面固定安装有下模与支板，支板内部顶端安装有气缸，且气缸底端与上模固定连接，上模上端表面固定连接有加料管，下模内部开设有内腔，内腔内部固定安装有循环管，本实用新型通过设置散热片与循环管配合制冷器可以充分将模具内的所有区域的热量导出换热，避免遗漏，导致冷却不充分，通过设置的温度传感器配合三通阀，使得水流不断在储水桶与制冷器内循环流动，对升温后的水进行降温处理后再重新泵入循环管，保证对模具的冷却效果，且可以对下模与上模之间的空隙进行填充，避免出现空隙，影响模具盖合后的密封性。
This utility model relates to the field of injection mold technology, specifically a cooling mechanism for injection molds. The utility model includes a base plate and a water storage tank. A lower mold and a support plate are fixedly installed on the upper surface of the base plate. A cylinder is installed at the top of the support plate, and the bottom of the cylinder is fixedly connected to the upper mold. A feeding pipe is fixedly connected to the upper surface of the upper mold. An inner cavity is opened inside the lower mold, and a circulation pipe is fixedly installed inside the inner cavity. This utility model, by setting heat sinks and circulation pipes in conjunction with a cooler, can fully dissipate heat from all areas within the mold, avoiding leakage and insufficient cooling. A temperature sensor, in conjunction with a three-way valve, ensures continuous water circulation within the water storage tank and cooler. The heated water is cooled before being pumped back into the circulation pipe, ensuring effective cooling of the mold. It can also fill the gap between the lower and upper molds, preventing voids that could affect the sealing of the mold after closing.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a cooling mechanism of an injection mold.
Background
The injection mould is a special tool for plastic injection molding process, is mainly used for manufacturing plastic products with various shapes and sizes, and can obtain finished products by injecting heated and melted plastic into a mould cavity and cooling and solidifying the plastic products.
In the prior art, as the cooling mechanism for the injection mold is proposed in the patent application number CN202322395523.8, the water inside the refrigerator is refrigerated by utilizing the refrigerating fins arranged inside the refrigerator, the refrigerated water is conveyed into the second cooling tank arranged inside the upper module by the second water pump arranged at the upper end of the refrigerator, and then the refrigerated water is conveyed into the first cooling tank arranged inside the lower module by the first water pump, and the refrigerating system capable of forming circulating flow is arranged at the two sides of the bracket, so that the molding speed of the injection mold can be accelerated, and the cooled injection mold is further convenient for workers to take.
However, in the above patent application, the cooling tank is cooled by cooling water through the refrigerator, but the cooling tank has a certain depth, the introduced water cannot be guaranteed to completely fill the cooling tank, partial areas in the mold are easy to miss, especially the upper half area is completely filled, a certain time is needed, the efficiency of cooling work is affected, the cooling effect is poor, after the long-time work, the water temperature becomes high after the overload of the refrigerator is reduced, the heated water continuously flows into the cooling tank, and the cooling effect on the mold is also affected.
Disclosure of utility model
The utility model aims to provide a cooling mechanism of an injection mold, which solves the problems in the prior art.
The aim of the utility model can be achieved by the following technical scheme:
The utility model provides a cooling body of injection mold, includes bottom plate and water storage bucket, bottom plate upper end fixed surface installs lower mould and extension board, the cylinder is installed on extension board inside top, just cylinder bottom and last mould fixed connection, go up mould upper end fixed surface and be connected with the filling tube, the inner chamber has been seted up to the lower mould inside, inner chamber inside fixed mounting has the circulating pipe, fixedly connected with a plurality of conducting strip between inner chamber inner wall and the circulating pipe, the refrigerator is installed to water storage bucket one side, it is provided with sealing mechanism to go up the mould bottom, a plurality of radiating groove has all been run through to lower mould both sides wall, the exhaust fan is all installed to lower mould both sides lateral wall.
Preferably, one end of the circulating pipe is fixedly connected with the water storage barrel, a water pump II is arranged in the water storage barrel, the output end of the water pump is connected with one end of the circulating pipe, a water pump I is arranged on the surface of the upper end of the bottom plate, which is close to one side of the water storage barrel, and one end of the water pump I is connected with the other end of the circulating pipe.
Preferably, one end, far away from the circulating pipe, of the water pump is fixedly connected with a connecting pipe, one end, far away from the water pump, of the connecting pipe is fixedly connected with a return pipe, the outer wall of the connecting pipe is fixedly connected with a return pipe, one end, far away from the connecting pipe, of the return pipe is fixedly connected with the refrigerator, and one end, close to the refrigerator, of the return pipe and the outer wall of the connecting pipe is provided with a check valve.
Preferably, a three-way valve is arranged on the outer wall of the circulating pipe near one end of the return pipe, the outer wall of the refrigerator is fixedly connected with a water injection pipe and a water outlet pipe, the outer wall of the water injection pipe is provided with a switch valve, and one end of the water outlet pipe is fixedly connected with the water storage barrel.
Preferably, the temperature sensor is installed at a position close to the lower part of the inner wall of the water storage barrel, the control module is installed on the outer wall of the water storage barrel, the display screen is installed on the outer wall of the control module, and the output end of the temperature sensor is electrically connected with the input end of the control module.
Preferably, the sealing mechanism comprises a first sealing plate and a second sealing plate, the first sealing plate and the second sealing plate are fixedly connected at the top end position in the upper die, and the first sealing plate and the second sealing plate are fixedly connected with a first rubber sealing gasket on the two outer side walls of the first sealing plate.
Preferably, the upper end surface of the lower die is provided with two sealing grooves II and two sealing grooves I, two rubber sealing gaskets II are fixedly connected to two inner side walls of the sealing grooves I, sealing cushion blocks are fixedly installed at positions, close to two ends, of the sealing grooves I, the sealing grooves I are matched with the sealing plates II, and the sealing plates I are matched with the sealing grooves II.
The utility model has the beneficial effects that:
1. According to the utility model, heat in all areas in the die can be fully led out for heat exchange by arranging the radiating fins and the circulating pipe to be matched with the refrigerator, so that insufficient cooling is avoided, and when the overload of the refrigerator weakens the cooling effect on water flow and the water flow temperature is higher than a set value, the circulating pipe is communicated with the circulating pipe by arranging the temperature sensor to be matched with the three-way valve, so that water flow continuously circulates in the water storage barrel and the refrigerator until the water flow temperature is lower than the set value, the three-way valve is readjusted, so that the circulating pipe is disconnected with the circulating pipe, cooling water reenters the circulating pipe in the inner cavity for circulating flow, and the cooling effect on the die is ensured.
2. According to the utility model, the gap between the first sealing plate and the second sealing plate can be well filled through the first rubber sealing gasket, and the gap between the first sealing plate and the second sealing plate can be well filled through the second rubber sealing gasket and the two sealing cushion blocks, so that the gap between the lower die and the upper die can be filled, the gap is avoided, the sealing performance of the die after the die is covered is influenced, the phenomenon that the sealing performance is insufficient to produce material leakage, and the finished product burrs are increased and the size is changed is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of another view of the present utility model;
FIG. 3 is a cross-sectional view of a lower mold and a water storage tub in the present utility model;
FIG. 4 is a schematic view of the upper die structure of the present utility model;
fig. 5 is a schematic view of the structure of the lower die in the present utility model.
Reference numerals in the drawings are as follows:
1. The device comprises a bottom plate, a lower die, a 3 upper die, a 4 support plate, a 5 cylinder, a 6 water storage barrel, a 7 refrigerator, a 8 water pump, a 9 circulating pipe, a 11 return pipe, a 12 connecting pipe, a 13 heat conducting sheet, a 14 exhaust fan, a 15 sealing plate, a 16 rubber sealing gasket, a 17 sealing groove, a 18 rubber sealing gasket, a 19 sealing cushion block, a 20 sealing groove, a 21, a feeding pipe, a 22, a control module, a 23, a three-way valve, a 24, a temperature sensor, a 25, a water injection pipe, a 26, an inner cavity, a 27, a second sealing plate, a 28 and a water outlet pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a cooling body of injection mold, as shown in fig. 1-5, including bottom plate 1 and water storage bucket 6, bottom plate 1 upper end fixed surface installs lower mould 2 and extension board 4, cylinder 5 is installed on extension board 4 inside top, and cylinder 5 bottom and last mould 3 fixed connection, go up mould 3 upper end fixed surface and be connected with filling tube 21, cavity 26 has been seted up to lower mould 2 inside, cavity 26 internally mounted has circulating pipe 9, fixedly connected with a plurality of conducting strip 13 between inner wall of cavity 26 and the circulating pipe 9, refrigerator 7 is installed to water storage bucket 6 one side, it is provided with sealing mechanism to go up mould 3 bottom surface, a plurality of heat dissipation groove has all been seted up in the penetration of lower mould 2 both sides wall, exhaust fan 14 is all installed to lower mould 2 both sides lateral wall.
One end of the circulating pipe 9 is fixedly connected with the water storage barrel 6, a water pump II is arranged in the water storage barrel 6, the output end of the water pump is connected with one end of the circulating pipe 9, a water pump I8 is arranged on the surface of the upper end of the bottom plate 1 near one side of the water storage barrel 6, and one end of the water pump I8 is connected with the other end of the circulating pipe 9.
One end of the water pump I8, which is far away from the circulating pipe 9, is fixedly connected with a connecting pipe 12, one end of the connecting pipe 12, which is far away from the water pump I8, is fixedly connected with a return pipe 11, one end of the return pipe 11, which is far away from the connecting pipe 12, is fixedly connected with the refrigerator 7, one end, which is close to the refrigerator 7, of the return pipe 11 and one end, which is close to the refrigerator 7, of the outer wall of the connecting pipe 12 are provided with one-way valves, and water flow which enters the refrigerator 7 can be prevented from entering the return pipe 11 and the connecting pipe 12 through the one-way valves.
The three-way valve 23 is installed at the position, close to one end of the return pipe 11, of the outer wall of the circulating pipe 9, the water injection pipe 25 and the water outlet pipe 28 are fixedly connected to the outer wall of the refrigerator 7, the switch valve is installed on the outer wall of the water injection pipe 25, one end of the water outlet pipe 28 is fixedly connected with the water storage barrel 6, the temperature sensor 24 is installed at the position, close to the lower portion, of the inner wall of the water storage barrel 6, the control module 22 is installed on the outer wall of the water storage barrel 6, the display screen is installed on the outer wall of the control module 22, the output end of the temperature sensor 24 is electrically connected with the input end of the control module 22, the temperature of water in the water storage barrel 6 can be detected in real time through the set temperature sensor 24, data are transmitted to the control module 22, the temperature value is displayed by the display on the control module 22, and the model of the temperature sensor 24 is PT100.
When the cooling device is used, the upper die 3 is driven to move downwards through the air cylinder 5 arranged on the support plate 4, the upper die 3 is driven to cover the lower die 2, then molten raw materials are introduced into the position between the lower die 2 and the upper die 3 through the feeding pipe 21, the cooling device is kept still for cooling and forming, in the process, heat of the raw materials is transmitted to the circulating pipe 9 through each connecting pipe 12, meanwhile, water flow is introduced into the refrigerator 7 through the water injection pipe 25, so that the water flow is cooled through the refrigerator 7 and then enters the water storage barrel 6 through the water outlet pipe 28, after the water storage barrel 6 is filled with water, a switch valve on the water injection pipe 25 is closed, water addition is stopped, then water cooled in the water storage barrel 6 is introduced into the circulating pipe 9 through the water pump II, meanwhile, the water cooled in the circulating pipe 9 is pumped into the refrigerator 7, and then is discharged into the water storage barrel 6 after cooling, so that the water cooled in the refrigerator 7 can circulate in the circulating pipe 9, the heat exchange the heat of the raw materials is carried out, the cooling effect is achieved, and meanwhile, the heat of the raw materials can be well absorbed and the cooling effect is well, the heat of the inner cavity 26 is well cooled through each exhaust fan, and the cooling effect can be well improved;
Meanwhile, the temperature sensor 24 in the water storage barrel 6 detects the temperature of water flow in the water storage barrel 6 in real time, when the water flow cooling effect is weakened due to overload of the refrigerator 7, and when the water flow temperature is higher than a set value, the set temperature value can be correspondingly adjusted according to an injection molded product, the temperature sensor 24 transmits a signal to the control module 22, the temperature value is displayed on a display screen, a worker can enable the circulating pipe 9 to be communicated with the return pipe 11 through adjusting the three-way valve 23, so that the water flow pumped by the water pump 8 can flow into the refrigerator 7 through the return pipe 11, and after being cooled again, the water flow is returned to the water storage barrel 6 through the water outlet pipe 28, so that the water flow continuously circulates in the water storage barrel 6 and the refrigerator 7 until the water flow temperature is lower than the set value, the three-way valve 23 is readjusted, so that the return pipe 11 is disconnected from the circulating pipe 9 in the inner cavity 26 again, and the cooling effect on the die is guaranteed.
The sealing mechanism comprises two first sealing plates 15 and two second sealing plates 27, the two first sealing plates 15 and the two second sealing plates 27 are fixedly connected to the top end position inside the upper die 3, and the two outer side walls of the two first sealing plates 15 are fixedly connected with a first rubber sealing gasket 16.
Two seal grooves II 20 and two seal grooves I17 are formed in the upper end surface of the lower die 2, rubber sealing gaskets II 18 are fixedly connected to two inner side walls of the two seal grooves I17, sealing cushion blocks 19 are fixedly installed in the positions, close to two ends, of the inner portion of the seal groove I17, the seal grooves I17 are matched with the seal plates II 27, the seal plates I15 are matched with the seal grooves II 20, the rubber sealing gaskets II 18, the sealing cushion blocks 19 and the rubber sealing gaskets II 18 have good rebound performance, and the rubber sealing gaskets II 18 and two side walls of the rubber sealing gaskets II 18 are inclined planes.
Specifically, in the process of covering the bottom plate 1 on the lower die 2, the first 15 and the second 27 of the sealing mechanism move downwards along the sealing plate, after the upper die 3 and the lower die 2 are covered, the first 15 of the two sealing plates are respectively inserted into the second 20 of the two sealing grooves, the second 27 of the two sealing plates are respectively inserted into the first 17 of the two sealing grooves, the first 16 of the sealing plate 15 is inserted into the second 20 of the sealing grooves, the inclined plane moves along the inner wall of the second 20 of the sealing groove and is gradually extruded to deform until the first 15 of the sealing plate is completely inserted into the second 20 of the sealing groove, under the action of resilience force of the first 16 of the sealing plate, the gap between the first 15 of the sealing plate and the second 20 of the sealing groove can be well filled, when the second 27 of the sealing plate is inserted into the first 17 of the sealing groove, the second 18 of the sealing plate can be deformed along the inclined plane of the second 18 of the two rubber sealing gaskets, and the gap between the first 17 of the sealing plates and the second 27 of the sealing plates can be well filled under the cooperation of the resilience force of the second 18 of the two sealing pads, so that the gap between the first 17 of the sealing plate and the second 27 of the sealing plate can be well filled, and the gap between the upper die 2 and the sealing plate can be completely filled, the gap can be avoided, and the gap between the dies 3 and the gap can be prevented from being increased, and the gap size from being increased.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (7)
1. The utility model provides a cooling body of injection mold, includes bottom plate (1) and water storage bucket (6), a serial communication port, bottom plate (1) upper end fixed surface installs lower mould (2) and extension board (4), cylinder (5) are installed on extension board (4) inside top, just cylinder (5) bottom and last mould (3) fixed connection, go up mould (3) upper end fixed surface and be connected with filling tube (21), inner chamber (26) have been seted up to lower mould (2) inside, inner chamber (26) internally fixed mounting has circulating pipe (9), fixedly connected with a plurality of conducting strip (13) between inner chamber (26) inner wall and circulating pipe (9), refrigerator (7) are installed to water storage bucket (6) one side, it is provided with sealing mechanism to go up mould (3) bottom surface, a plurality of heat dissipation groove has all been run through to lower mould (2) both sides wall, exhaust fan (14) are all installed to lower mould (2) both outer side walls.
2. The cooling mechanism of an injection mold according to claim 1, wherein one end of the circulating pipe (9) is fixedly connected with the water storage barrel (6), a water pump II is installed in the water storage barrel (6), the output end of the water pump is connected with one end of the circulating pipe (9), a water pump I (8) is installed on the upper end surface of the bottom plate (1) at a position close to one side of the water storage barrel (6), and one end of the water pump I (8) is connected with the other end of the circulating pipe (9).
3. The cooling mechanism of an injection mold according to claim 2, wherein one end of the water pump (8) away from the circulating pipe (9) is fixedly connected with a connecting pipe (12), one end of the connecting pipe (12) away from the water pump (8) is fixedly connected with a refrigerator (7), the outer wall of the connecting pipe (12) is fixedly connected with a return pipe (11), one end of the return pipe (11) away from the connecting pipe (12) is fixedly connected with the refrigerator (7), and one ends of the return pipe (11) and the outer wall of the connecting pipe (12) close to the refrigerator (7) are both provided with one-way valves.
4. The cooling mechanism of an injection mold according to claim 2, wherein a three-way valve (23) is installed on the outer wall of the circulation pipe (9) near one end of the return pipe (11), a water injection pipe (25) and a water outlet pipe (28) are fixedly connected to the outer wall of the refrigerator (7), a switch valve is installed on the outer wall of the water injection pipe (25), and one end of the water outlet pipe (28) is fixedly connected with the water storage barrel (6).
5. The cooling mechanism of an injection mold according to claim 1, wherein a temperature sensor (24) is installed on the inner wall of the water storage barrel (6) near the lower portion, a control module (22) is installed on the outer wall of the water storage barrel (6), a display screen is installed on the outer wall of the control module (22), and the output end of the temperature sensor (24) is electrically connected with the input end of the control module (22).
6. The cooling mechanism of an injection mold according to claim 1, wherein the sealing mechanism comprises two first sealing plates (15) and two second sealing plates (27), the two first sealing plates (15) and the two second sealing plates (27) are fixedly connected at the top end position inside the upper mold (3), and the two outer side walls of the two first sealing plates (15) are fixedly connected with a first rubber sealing gasket (16).
7. The cooling mechanism of an injection mold according to claim 6, wherein two second sealing grooves (20) and two first sealing grooves (17) are formed in the upper end surface of the lower mold (2), two rubber sealing gaskets (18) are fixedly connected to two inner side walls of the first sealing grooves (17), sealing cushion blocks (19) are fixedly installed in the first sealing grooves (17) close to two ends, the first sealing grooves (17) are matched with the second sealing plates (27), and the first sealing plates (15) are matched with the second sealing grooves (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520159835.5U CN223763721U (en) | 2025-01-23 | 2025-01-23 | A cooling mechanism for injection molds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520159835.5U CN223763721U (en) | 2025-01-23 | 2025-01-23 | A cooling mechanism for injection molds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223763721U true CN223763721U (en) | 2026-01-06 |
Family
ID=98247544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520159835.5U Active CN223763721U (en) | 2025-01-23 | 2025-01-23 | A cooling mechanism for injection molds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223763721U (en) |
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2025
- 2025-01-23 CN CN202520159835.5U patent/CN223763721U/en active Active
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