Accurate cooling device for injection mold

Abstract

The utility model relates to the field of injection mold devices, and discloses an accurate cooling device for an injection mold, which comprises a circulating pool, a cooling pool is arranged above the circulating pool, an exhaust fan is fixedly connected in the side wall of the cooling pool, a lower mold is fixedly connected in the center of the interior of the cooling pool, and an upper mold is fixedly connected in the lower mold. The top of the rear side of the circulating pool is fixedly connected with a water pump, the input end of the water pump is fixedly connected into the circulating pool, the output end of the water pump is fixedly connected with a main water pipe, the end, away from the water pump, of the main water pipe is fixedly connected with a water distribution pipe, and the outer side of the water distribution pipe is fixedly connected into the lower mold. And the side wall of the lower die is hollow. According to the mold cooling device, circulating water is injected into the cooling pool through the water pump to cool the mold, circulating water is injected into the cavity in the side wall of the lower mold, the water cooling efficiency can be improved through the inside and the outside at the same time, the filter screen can be rapidly replaced through the structures such as the button and the plug pin, and the mold cooling efficiency of the circulating water is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of injection mold devices, in particular to a precise cooling device for injection molds. Background Art

[0002] Injection mold cooling is a key component of the injection molding process. Its primary function is to optimize the quality of plastic parts and production efficiency by controlling mold temperature. During the injection molding process, molds are subject to high temperatures and pressures. The cooling system maintains the mold temperature within an appropriate range, preventing overheating and deformation, improving plastic fluidity, and reducing cooling time, thereby improving production efficiency and product quality.

[0003] Traditional cooling methods primarily rely on circulating cooling water channels within the mold to remove heat. This method is simple and effective, but can lead to uneven temperature distribution. Furthermore, the injection mold's molding area generates significant heat, making it difficult to cool with circulating water. Therefore, a precision cooling device for injection molds has been proposed to address this issue. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a precise cooling device for injection molds, aiming to solve the problem of poor cooling effect of water circulation.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a precision cooling device for injection molds, comprising a circulation pool, a cooling pool is arranged above the circulation pool, an exhaust fan is fixedly connected to the inside of the side wall of the cooling pool, a lower mold is fixedly connected to the inner center of the cooling pool, a water level hole is provided on the side wall of the lower mold, a water pump is fixedly connected to the top of the rear side of the circulation pool, the input end of the water pump is fixedly connected to the inside of the circulation pool, the output end of the water pump is fixedly connected to a main water pipe, the end of the main water pipe away from the water pump is fixedly connected to a water distribution pipe, the outer side of the water distribution pipe is fixedly connected to the inside of the lower mold, the side wall of the lower mold is hollow, the side wall of the cooling pool is provided with holes, a filter is arranged inside the circulation pool, and a fixed component is provided on the outside of the circulation pool, and the fixed component is used to quickly replace the filter.

[0006] As a further description of the above technical solution:

[0007] The fixing assembly includes a card box, the outer side of the card box is fixedly connected to the side wall of the circulation pool, the interior of the card box is fixedly connected to two limit columns, the outer side of the top limit column is slidably connected to a slider, the rear side of the slider is fixedly connected to a latch, the outer side of the latch is slidably connected to the interior of the card box and the circulation pool and inserted into the interior of the filter, the outer side of the bottom limit column is sleeved with a spring, the outer side of the bottom limit column is slidably connected to a button, and a rotating rod is provided between the latch and the button.

[0008] As a further description of the above technical solution:

[0009] An ejection device is provided between the circulation pool and the cooling pool, and a crank is fixedly connected to the front side of the ejection device.

[0010] As a further description of the above technical solution:

[0011] The top rear side of the circulation pool is fixedly connected with an injection molding machine.

[0012] As a further description of the above technical solution:

[0013] An upper mold is arranged just above the lower mold, and the top of the upper mold is fixedly connected to the output end of the injection molding machine.

[0014] As a further description of the above technical solution:

[0015] The middle part of the rotating rod is rotatably connected with a circular shaft, and the rotating rod can be extended and retracted.

[0016] As a further description of the above technical solution:

[0017] The top of the rotating rod is rotatably connected to the right end of the latch, and the bottom of the rotating rod is rotatably connected to the top of the button.

[0018] As a further description of the above technical solution:

[0019] The left end of the spring is fixedly connected to the inner wall of the card box, and the right end of the spring is fixedly connected to the left end of the button.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the present invention, the injection mold is cooled by water circulation. The interior of the lower mold is hollowed out, and water is injected into the cavity of the lower mold through a water pipe. At the same time, the water pump also injects cooling water into the cooling pool, cooling the mold from the inside and outside at the same time, and the exhaust fan is used to discharge the hot air, which greatly improves the cooling effect of the injection mold.

[0022] 2. The utility model discloses a filter screen is installed in the middle of circulating pool, and cooling water flows into circulating pool through the drainage hole of cooling pool setting, and because of the increase of circulating times, the water can contain impurity and incrustation, utilizes the suction of water pump and the filtration of filter screen, filters out the impurity in the water, reduces the influence of cooling water containing impurity on mold cooling. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A kind of injection mold precision cooling device is provided for the utility model, and its sectional view is shown in the figure;

[0024] Figure 2 The structure diagram of water pump of a kind of injection mold precision cooling device is provided for the utility model;

[0025] Figure 3 The sectional view of lower mould of a kind of injection mold precision cooling device is provided for the utility model;

[0026] Figure 4 The sectional view of clamping box of a kind of injection mold precision cooling device is provided for the utility model.

[0027] Legend:

[0028] 1, circulating pool;2, cooling pool;3, upper mould;4, lower mould;5, injection molding machine;6, exhaust fan;7, water level hole;8, clamping box;9, water pump;10, total water pipe;11, ejection device;12, crank;13, water distribution pipe;14, filter screen;15, limit post;16, bolt;17, sliding block;18, rotating rod;19, button;20, spring. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] Reference Figure 1 - Figure 3, the utility model provides an embodiment: a precision cooling device for injection molds, including a circulation pool 1, a cooling pool 2 is arranged above the circulation pool 1, an exhaust fan 6 is fixedly connected to the side wall of the cooling pool 2, a lower mold 4 is fixedly connected to the inner center of the cooling pool 2, a water level hole 7 is opened on the side wall of the lower mold 4, a water pump 9 is fixedly connected to the top of the rear side of the circulation pool 1, the input end of the water pump 9 is fixedly connected to the inside of the circulation pool 1, the output end of the water pump 9 is fixedly connected to a main water pipe 10, and the end of the main water pipe 10 away from the water pump 9 is fixedly connected to a water distribution pipe 13, The outer side of the water pipe 13 is fixedly connected to the inside of the lower mold 4. The side wall of the lower mold 4 is hollow. The side wall of the cooling pool 2 is provided with holes. A filter screen 14 is provided inside the circulation pool 1. A fixed component is provided on the outside of the circulation pool 1. The fixed component is used to quickly replace the filter screen 14. An ejection device 11 is provided between the circulation pool 1 and the cooling pool 2. The front side of the ejection device 11 is fixedly connected to a crank 12. The top rear side of the circulation pool 1 is fixedly connected to an injection molding machine 5. An upper mold 3 is provided directly above the lower mold 4. The top of the upper mold 3 is fixedly connected to the output end of the injection molding machine 5.

[0031] Specifically, the power of the injection molding machine 5 enables the upper mold 3 and the lower mold 4 to wait for the formation of the finished product in the cavity. During this period, the mold generates a large amount of heat, and the water pump 9 is started to pump the circulating water in the circulation pool 1 into the cooling pool 2 through the main water pipe 10, which initially cools the lower mold 4, and uses the branch water pipe 13 to send the water in the main water pipe 10 into the cavity between the side walls of the lower mold 4. As the amount of water increases, the water in the cavity of the side wall of the lower mold 4 will be discharged into the cooling pool 2 through the water level hole 7, which will not affect the formation of the finished product, and the exhaust fan 6 can quickly discharge the heat in the cooling pool 2, speeding up the cooling of the lower mold 4. The circulating water carries a large amount of heat and flows into the circulation pool 1 through the drainage hole on the side wall of the cooling pool 2, waiting for the next cycle.

[0032] Reference Figure 1 and Figure 4 The fixed component includes a card box 8, the outer side of the card box 8 is fixedly connected to the side wall of the circulation pool 1, and the interior of the card box 8 is fixedly connected to two limit columns 15, the outer side of the top limit column 15 is slidably connected to a slider 17, and the rear side of the slider 17 is fixedly connected to a latch 16, the outer side of the latch 16 is slidably connected to the interior of the card box 8 and the circulation pool 1 and inserted into the interior of the filter screen 14, the outer side of the bottom limit column 15 is sleeved with a spring 20, the outer side of the bottom limit column 15 is slidably connected to a button 19, a rotating rod 18 is provided between the latch 16 and the button 19, the middle part of the rotating rod 18 is rotatably connected to a circular shaft, the rotating rod 18 can be retracted, the top of the rotating rod 18 is rotatably connected to the right end of the latch 16, the bottom of the rotating rod 18 is rotatably connected to the top of the button 19, the left end of the spring 20 is fixedly connected to the inner wall of the card box 8, and the right end of the spring 20 is fixedly connected to the left end of the button 19.

[0033] Specifically, to prevent the impurities generated in the circulating water in the circulating pool 1 after a long time of circulation from weakening the cooling effect of the mold, a filter screen 14 is arranged in the middle of the circulating pool 1. When the water pump 9 is started, a large amount of water will be pumped up by the water pump 9 through the filter screen 14. A fixing assembly is arranged on the side wall of the circulating pool 1. When the filter screen 14 is clogged by scale and impurities after a long time of work, the filter screen 14 needs to be replaced. Only need to press the button 19, the inside of the button 19 slides to the left outside the limiting column 15 and compresses the spring 20, and the bottom of the rotating rod 18 will rotate with the sliding of the button 19. Since the middle part of the rotating rod 18 is rotatably connected with the circular shaft and the rotating rod 18 can be telescopic, the top of the rotating rod 18 slides to the right and pulls the latch 16. The latch 16 slides out of the inside of the filter screen 14. At this time, the filter screen 14 can be taken out for replacement. After that, only need to release the button 19. Under the elastic action of the spring 20, the bottom of the rotating rod 18 slides to the right, driving the top of the rotating rod 18 to slide to the left and pushing the latch 16 to the left. The latch 16 penetrates the inside of the circulating pool 1 and finally inserts into the side of the filter screen 14. The replacement of the filter screen 14 is completed, preventing the circulating water with impurities from weakening the cooling of the mold.

[0034] Working principle: The mold is cooled by water circulation. The circulating water in the circulating pool 1 is pumped up by the water pump 9 and sent into the cooling pool 2 through the main water pipe 10 to cool the lower mold 4 from the outside. The water is delivered to the cavity between the side walls of the lower mold 4 by the water distribution pipe 13 to cool the lower mold 4 from the inside. The hot air in the cooling pool 2 can be quickly discharged by the exhaust fan 6. The water in the side walls of the lower mold 4 is circulated back and forth, carrying a large amount of heat and then being discharged into the cooling pool 2 from the water level hole 7, and then being discharged into the circulating pool 1 from the drain hole in the side wall of the cooling pool 2. The circulating water in the circulating pool 1 is cooled. Considering that the circulating water will inevitably produce impurities and scale after a certain number of times, a filter screen 14 is arranged in the middle of the circulating pool 1. When the water pump 9 is started, the circulating water will be sucked to the input end of the water pump 9, so it will first pass through the filter screen 14. After the filtration, the filter screen 14 needs to be replaced. Only need to press the button 19, the spring 20 is compressed at the same time, and the rotating rod 18 is pulled to the left. The middle part of the rotating rod 18 is fixed by the circular shaft, so the top of the rotating rod 18 pulls the latch 16 to the right. At this time, the filter screen 14 is no longer fixed. After replacement, only need to release the button 19. Under the action of the spring 20, the moving direction of the rotating rod 18 is opposite, and finally the latch 16 penetrates the side wall of the circulating pool 1 and inserts into the side of the filter screen 14. The replacement of the filter screen 14 is completed, avoiding the increase of scale and impurities affecting the efficiency of water cooling.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A precision cooling device for an injection mold, comprising a circulation pool (1), characterized in that: A cooling pool (2) is provided above the circulation pool (1), an exhaust fan (6) is fixedly connected to the inside of the side wall of the cooling pool (2), a lower mold (4) is fixedly connected to the inner center of the cooling pool (2), a water level hole (7) is provided on the side wall of the lower mold (4), a water pump (9) is fixedly connected to the top of the rear side of the circulation pool (1), an input end of the water pump (9) is fixedly connected to the inside of the circulation pool (1), an output end of the water pump (9) is fixedly connected to a main water pipe (10), an end of the main water pipe (10) away from the water pump (9) is fixedly connected to a water distribution pipe (13), an outer side of the water distribution pipe (13) is fixedly connected to the inside of the lower mold (4), the side wall of the lower mold (4) is hollow, a hole is provided on the side wall of the cooling pool (2), a filter screen (14) is provided inside the circulation pool (1), a fixed component is provided on the outside of the circulation pool (1), and the fixed component is used for quickly replacing the filter screen (14).

2. The precise cooling device for injection molds according to claim 1, characterized in that: The fixing assembly comprises a card box (8), the outer side of the card box (8) is fixedly connected to the side wall of the circulation pool (1), the interior of the card box (8) is fixedly connected to two limit columns (15), the outer side of the top limit column (15) is slidably connected to a slider (17), the rear side of the slider (17) is fixedly connected to a latch (16), the outer side of the latch (16) is slidably connected to the interior of the card box (8) and the circulation pool (1) and inserted into the interior of the filter (14), the outer side of the bottom limit column (15) is sleeved with a spring (20), the outer side of the bottom limit column (15) is slidably connected to a button (19), and a rotating rod (18) is provided between the latch (16) and the button (19).

3. The precise cooling device for injection molds according to claim 1, characterized in that: An ejection device (11) is provided between the circulation pool (1) and the cooling pool (2), and a crank (12) is fixedly connected to the front side of the ejection device (11).

4. The precise cooling device for injection molds according to claim 1, characterized in that: An injection molding machine (5) is fixedly connected to the top rear side of the circulation pool (1).

5. The precise cooling device for injection mold according to claim 4, characterized in that: An upper mold (3) is provided directly above the lower mold (4), and the top of the upper mold (3) is fixedly connected to the output end of the injection molding machine (5).

6. The precise cooling device for injection mold according to claim 2, characterized in that: The middle part of the rotating rod (18) is rotatably connected to a circular shaft, and the rotating rod (18) can be telescopic.

7. The precise cooling device for injection mold according to claim 2, characterized in that: The top of the rotating rod (18) is rotatably connected to the right end of the latch (16), and the bottom of the rotating rod (18) is rotatably connected to the top of the button (19).

8. The precise cooling device for injection mold according to claim 2, characterized in that: The left end of the spring (20) is fixedly connected to the inner wall of the card box (8), and the right end of the spring (20) is fixedly connected to the left end of the button (19).

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