Injection mold capable of circularly cooling

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold capable of circularly cooling, and solves the problems that the cooling efficiency of cooling liquid is very low, the cooling efficiency of the injection mold is seriously influenced, and the service life of the injection mold is influenced as the cooling liquid is cooled only through a short distance that the cooling liquid passes through a heat dissipation opening. The mold comprises a supporting plate and a lower mold body, ventilation holes are formed in the supporting plate, the lower mold body is placed in a containing groove formed in the supporting plate, a circulating cooling mechanism is arranged in the lower mold body, and the circulating cooling mechanism comprises a circulating pump, an annular cooling pipe and a cooling groove. According to the cooling device, the cooling liquid can be continuously and sufficiently cooled by using the arranged circulating cooling mechanism, so that the cooling effect of the cooling liquid on the injection mold is more ideal, and the efficiency of processing and forming a finished product can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold capable of cyclic cooling. Background Art

[0002] Injection molds are tools used to make molded objects. Many of the current office supplies are made of injection molds, such as file boxes, plastic standees, etc. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. It is known as the "mother of industry". Existing injection molds will generate a lot of high temperature when working. If the heat is not handled, the mold molding speed will slow down, affecting the progress of the work, and may also scald the staff. Therefore, the injection mold needs to be circulated and cooled.

[0003] A cyclic cooling injection mold with publication number CN213107932U includes a lower mold and an upper mold, a second pipe is fixedly connected to the middle end of the lower mold inner cavity, a pump is fixedly installed on the right end of the lower mold inner cavity, rubber blocks are fixedly connected to the two ends of the top of the lower mold, a first pipe is fixedly connected to the middle end of the upper mold inner cavity, and a heat dissipation port is fixedly connected to the top of the upper mold inner cavity.

[0004] The above-mentioned device can achieve the effect of circulating cooling and solve the problem that the existing injection mold will generate a lot of high temperature when working. However, when the above-mentioned scheme cools the coolant, the coolant is cooled only by the short distance that the coolant passes through the heat dissipation port. The cooling efficiency of the coolant is very low, which seriously affects the cooling efficiency of the injection mold and causes a slow molding speed of the product. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an injection mold capable of cyclic cooling, so as to solve the above-mentioned problem that the cooling liquid is cooled and dissipated only by the short distance through the heat dissipation port, and the efficiency of cooling and dissipating the cooling liquid is very low, which seriously affects the cooling efficiency of the injection mold and leads to a slow molding speed of the product.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A type of injection mold capable of circulating cooling comprises a support plate and a lower mold, wherein the support plate is provided with ventilation holes, the lower mold is placed in a placement groove provided in the support plate, a circulating cooling mechanism is arranged inside the lower mold, the circulating cooling mechanism comprises a circulating pump, an annular cooling pipe and a cooling groove, the annular cooling pipe is wound around the interior of the lower mold, a meandering cooling pipe is arranged inside the cooling groove, and the meandering cooling pipe meanders around the interior of the cooling groove, a group of heat dissipation aluminum plates are fixedly connected to the inner bottom wall of the cooling groove, the outer surface of each heat dissipation aluminum plate is in contact with the meandering cooling pipe, a blowing mechanism is arranged below the support plate, an upper mold is arranged above the lower mold, the upper mold is plugged into the interior of the lower mold, a connecting seat is installed on the upper surface of the upper mold, and an injection hole is arranged inside the upper mold.

[0008] Preferably, the input end of the circulation pump is fixedly connected to a water pumping pipe, and one end of the water pumping pipe away from the circulation pump is fixedly connected to the water outlet end of the annular cooling pipe.

[0009] Preferably, the output end of the circulation pump is fixedly connected to a drain pipe, the end of the drain pipe away from the circulation pump penetrates the inner wall of the cooling tank and extends to the interior of the cooling tank, and the drain pipe is connected to the water inlet end of the meandering cooling pipe.

[0010] Preferably, the water outlet end of the meandering cooling pipe is fixedly connected to a water injection pipe, the water injection pipe passes through the inner wall of the cooling trough and extends to the outside of the cooling trough, the water outlet end of the cooling trough is fixedly connected to a water injection pipe, the water injection pipe is connected to the water inlet end of the annular cooling pipe, and a group of heat dissipation holes are opened on the inner walls on all four sides of the cooling trough.

[0011] Preferably, the air blowing mechanism comprises a connecting plate, the upper surface of which is fixedly connected with four connecting rods, the top ends of the four connecting rods are fixedly connected with the bottom surface of the supporting plate, and a blowing fan is installed inside the connecting plate.

[0012] Preferably, two groups of cooling holes penetrating from top to bottom are opened inside the lower mold, and two groups of Z-shaped holes are opened inside the upper mold, and each of the cooling holes is respectively connected to each of the Z-shaped holes.

[0013] The beneficial effects of the utility model are:

[0014] 1. By using the circulating cooling mechanism, the coolant can be cooled more fully and continuously, so that the cooling effect of the coolant on the injection mold is more ideal, thereby improving the efficiency of processing and molding the finished product.

[0015] 2. By starting the blowing fan, the external cold air can be blown to the lower mold. The cold air will enter the inside of a group of cooling holes and the hot air can be discharged through the Z-shaped holes, thereby achieving auxiliary cooling of the lower mold and the upper mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the circulating cooling mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the bottom structure of the utility model.

[0020] In the figure: 1. Support plate; 2. Lower mold; 3. Circulation cooling mechanism; 301. Circulation pump; 302. Pumping pipe; 303. Annular cooling pipe; 304. Drain pipe; 305. Circular cooling pipe; 306. Cooling trough; 307. Heat dissipation aluminum plate; 308. Water injection pipe; 309. Heat exhaust hole; 4. Blowing fan mechanism; 401. Connecting rod; 402. Connecting plate; 403. Blowing fan; 5. Ventilation hole; 6. Upper mold; 7. Cooling hole; 8. Z-shaped hole; 9. Connecting seat; 10. Injection hole. DETAILED DESCRIPTION

[0021] The following will describe various embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0022] An injection mold capable of cyclic cooling, as shown in the attached Figure 1-4 As shown, a support plate 1 and a lower mold 2 are provided, a ventilation hole 5 is opened inside the support plate 1, an annular support seat is set at the outer edge of the bottom of the lower mold 2, a placement groove adapted to it is opened inside the support plate 1, and the lower mold 2 is placed in the placement groove opened inside the support plate 1.

[0023] A circulating cooling mechanism 3 is arranged inside the lower mold 2, and the circulating cooling mechanism 3 includes a circulating pump 301, an annular cooling pipe 303 and a cooling groove 306. The annular cooling pipe 303 is wound around the inside of the lower mold 2, and a groove capable of setting the annular cooling pipe 303 is opened inside the lower mold 2. The cooling groove 306 is placed above the support plate 1. A meandering cooling pipe 305 is arranged inside the cooling groove 306, and the meandering cooling pipe 305 meanders around the inside of the cooling groove 306. The meandering cooling pipe 305 is a multi-layer meandering pipe that surrounds the inside of the cooling groove 306, which can increase the cooling time of the coolant, and a liquid injection port should be arranged on the outer surface of the meandering cooling pipe 305 to replenish the coolant.

[0024] A group of heat dissipation aluminum plates 307 are fixedly connected to the inner bottom wall of the cooling tank 306. The outer surface of each heat dissipation aluminum plate 307 is in contact with the meandering cooling tube 305. By using the heat dissipation aluminum plates 307, the heat inside the meandering cooling tube 305 can be discharged faster.

[0025] The input end of the circulation pump 301 is fixedly connected to a pumping pipe 302, and one end of the pumping pipe 302 away from the circulation pump 301 is fixedly connected to the water outlet end of the annular cooling pipe 303. By using the pumping pipe 302, the high-temperature coolant inside the annular cooling pipe 303 can be pumped out and refluxed at a low place, which makes it more convenient to extract the coolant.

[0026] The output end of the circulation pump 301 is fixedly connected to a drain pipe 304. The end of the drain pipe 304 away from the circulation pump 301 passes through the inner wall of the cooling tank 306 and extends to the interior of the cooling tank 306. The drain pipe 304 is connected to the water inlet end of the meandering cooling pipe 305. By using the circulation pump 301, the coolant can circulate.

[0027] The water outlet end of the circular cooling pipe 305 is fixedly connected to a water injection pipe 308, which passes through the inner wall of the cooling groove 306 and extends to the outside of the cooling groove 306. The water outlet end of the cooling groove 306 is fixedly connected to the water injection pipe 308, and the water injection pipe 308 is connected to the water inlet end of the annular cooling pipe 303. A group of heat exhaust holes 309 are opened on the inner walls of the four sides of the cooling groove 306. By using the water injection pipe 308, the cooled coolant can be sent back into the interior of the annular cooling pipe 303 to form a circulating cooling.

[0028] A blower mechanism 4 is provided below the support plate 1, and the blower mechanism 4 includes a connecting plate 402, and four connecting rods 401 are fixedly connected to the upper surface of the connecting plate 402, and the top ends of the four connecting rods 401 are fixedly connected to the bottom surface of the support plate 1, and a blower fan 403 is installed inside the connecting plate 402. By using the blower fan 403, external cold air can be blown toward the lower mold 2.

[0029] An upper mold 6 is arranged above the lower mold 2, and the upper mold 6 is inserted into the interior of the lower mold 2. A connecting seat 9 is installed on the upper surface of the upper mold 6. By using the connecting seat 9, the upper mold 6 can be connected to an external power part, which facilitates the mold closing of the lower mold 2 and the upper mold 6. An injection hole 10 is opened inside the upper mold 6. By using the injection hole 10, injection molding can be conveniently performed.

[0030] Two groups of cooling holes 7 are opened in the lower mold 2 and run through it from top to bottom, and two groups of Z-shaped holes 8 are opened in the upper mold 6. Each cooling hole 7 is connected to each Z-shaped hole 8 respectively. By using the cooling holes 7 and the Z-shaped holes 8 in combination, cold air can be used to assist in cooling the lower mold 2 and the upper mold 6.

[0031] Working principle: When the office supplies are injection molded, the circulating pump 301 is started, and the high-temperature coolant in the annular cooling tube 303 can be extracted through the water pump 302, and sent to the inside of the round cooling tube 305 through the drain pipe 304. The heat in the round cooling tube 305 can be fully dissipated to the outside through a group of heat dissipation aluminum plates 307, thereby accelerating the cooling of the coolant. The cooled coolant can be sent to the inside of the annular cooling tube 303 again through the water injection pipe 308, realizing the circulation cooling of the lower mold 2, and improving the cooling efficiency of the lower mold 2. By starting the blowing fan 403, air can be blown into the inside of a group of cooling holes 7, and the hot air can be discharged through the Z-shaped hole 8, so that the lower mold 2 and the upper mold 6 can be auxiliary cooled.

[0032] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0034] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An injection mold capable of cyclic cooling, comprising a support plate (1) and a lower mold (2), characterized in that: A ventilation hole (5) is provided inside the support plate (1); the lower mold (2) is placed in a placement groove provided inside the support plate (1); a circulating cooling mechanism (3) is provided inside the lower mold (2); the circulating cooling mechanism (3) comprises a circulating pump (301), an annular cooling pipe (303) and a cooling groove (306); the annular cooling pipe (303) is wound around the inside of the lower mold (2); a meandering cooling pipe (305) is provided inside the cooling groove (306); and the meandering cooling pipe (305) is meandering around the lower mold (2). Inside the cooling groove (306), a group of heat dissipation aluminum plates (307) are fixedly connected to the inner bottom wall of the cooling groove (306), and the outer surface of each heat dissipation aluminum plate (307) is in contact with the round cooling pipe (305). A blower mechanism (4) is arranged below the support plate (1), and an upper mold (6) is arranged above the lower mold (2). The upper mold (6) is plugged into the interior of the lower mold (2), and a connecting seat (9) is installed on the upper surface of the upper mold (6). An injection hole (10) is opened inside the upper mold (6).

2. The injection mold capable of cyclic cooling according to claim 1, characterized in that: The input end of the circulation pump (301) is fixedly connected to a water pumping pipe (302), and one end of the water pumping pipe (302) away from the circulation pump (301) is fixedly connected to a water outlet end of the annular cooling pipe (303).

3. The injection mold capable of cyclic cooling according to claim 2, characterized in that: The output end of the circulation pump (301) is fixedly connected to a drainage pipe (304); one end of the drainage pipe (304) away from the circulation pump (301) penetrates the inner wall of the cooling tank (306) and extends to the interior of the cooling tank (306); and the drainage pipe (304) is connected to the water inlet end of the meander cooling pipe (305).

4. The injection mold capable of cyclic cooling according to claim 3, characterized in that: The water outlet end of the meandering cooling pipe (305) is fixedly connected to a water injection pipe (308), the water injection pipe (308) penetrates the inner wall of the cooling groove (306) and extends to the outside of the cooling groove (306), the water outlet end of the cooling groove (306) is fixedly connected to a water injection pipe (308), the water injection pipe (308) is connected to the water inlet end of the annular cooling pipe (303), and a group of heat exhaust holes (309) are opened on the inner walls of the four sides of the cooling groove (306).

5. The injection mold capable of cyclic cooling according to claim 1, characterized in that: The blower mechanism (4) comprises a connecting plate (402), the upper surface of the connecting plate (402) being fixedly connected to four connecting rods (401), the top ends of the four connecting rods (401) being fixedly connected to the bottom surface of the support plate (1), and a blower fan (403) being installed inside the connecting plate (402).

6. The injection mold capable of cyclic cooling according to claim 1, characterized in that: Two groups of cooling holes (7) penetrating vertically are provided inside the lower mold (2), and two groups of Z-shaped holes (8) are provided inside the upper mold (6), and each of the cooling holes (7) is respectively connected to each of the Z-shaped holes (8).

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