Injection mold with cooling structure

Abstract

The utility model relates to a cooling structure technical field, concretely is a kind of injection mold with cooling structure, the utility model includes upper die and lower die, the upper end of upper die is fixedly installed with upper die plate, the lower end of lower die is fixedly installed with lower die plate, the inside of upper die and lower die is all penetrated and is set with cooling through-hole, the inside of upper die and lower die is all set with the cooling assembly for cooling to injection mold die, the utility model replaces hose by hard pipe layout first hard pipe, second hard pipe, third hard pipe, completely avoids pipeline intersection or droop, ensure that cooling liquid flow path is smooth, reduce local resistance, compared with traditional and adopt hose connection multiple cooling pipes, effectively avoid the situation that hose appears intersection winding or droop collapse, cooling liquid flow path can be distorted, prevent the emergence unable fast effectively take away mould heat to cause injection mold cooling efficiency significantly reduced.

Description

Technical Field

[0001] This utility model relates to the field of cooling structures, specifically an injection mold with a cooling structure. Background Technology

[0002] Injection molds with cooling structures are widely used in various industries such as automotive and electronics. For example, in the production of automotive lighting, water-cooled molds can shorten the production cycle of headlight lenses by about 30% and improve product transparency and optical performance. In the molding of electronic product housings, they can also handle complex shapes well, ensuring product quality and production efficiency. Cooling channels inside the upper and lower molds of injection molds can take the form of straight channels, circumferential channels, water column channels, and circulating channels, and common cooling methods include water cooling, air cooling, and oil cooling.

[0003] In traditional injection mold cooling systems, multiple cooling pipes are usually connected by flexible hoses to achieve coolant circulation. However, in actual use, the hoses are prone to tangling or sagging, which distorts the flow path of the coolant, significantly increases the flow resistance, slows down the coolant flow rate, and makes it impossible to quickly and effectively remove heat from the mold, ultimately resulting in a significant reduction in the cooling efficiency of the injection mold. Utility Model Content

[0004] The purpose of this invention is to provide an injection mold with a cooling structure to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An injection mold with a cooling structure includes an upper mold core and a lower mold core. An upper template is fixedly installed at the upper end of the upper mold core, and a lower template is fixedly installed at the lower end of the lower mold core. Cooling through holes are provided inside both the upper and lower mold cores, and cooling components for cooling the mold cores are provided inside both the upper and lower mold cores.

[0007] Preferably, the cooling assembly includes a first cooling pipe, a second cooling pipe, a third cooling pipe, and a fourth cooling pipe. The first and second cooling pipes are both fixedly sleeved inside the cooling through hole, and the third and fourth cooling pipes are both fixedly sleeved inside the cooling through hole. Threaded bolts are fixedly installed inside the two ends of the first, second, third, and fourth cooling pipes, and an installation sleeve is fixedly installed at one end of each of the threaded bolts.

[0008] Preferably, the mounting sleeve has through holes at both ends on its outer side, and fixing plates are fixedly installed at both ends of the outer side of the mounting sleeve. A sleeve is fixedly installed on one side of each of the two fixing plates, and a compression spring is fixedly installed on the inner wall of the sleeve. One end of the compression spring is fixedly connected to a movable piece.

[0009] Preferably, a pin is fixedly connected to the center of the movable piece, and the pin slides through the inside of the sleeve and the fixed piece, and the pin is slidably sleeved inside the through hole of the mounting head.

[0010] Preferably, a handle is fixedly installed at one end of the pin, and a fixed cover slides through the outer side of one end of the pin, with one end of the fixed cover fixedly installed at one end of the sleeve.

[0011] Preferably, the mounting head has a connector inside, and each connector has a fixing hole on its outer side. A pin is engaged inside the fixing hole, and a sealing plate is fixedly installed on the outer side of the connector. One side of the sealing plate is tightly fitted to the other side of the mounting head.

[0012] Preferably, one end of each of the two mounting sleeves is fixedly connected to a third rigid pipe, a first rigid pipe, and a second rigid pipe, and the two ends of the third rigid pipe are respectively located at one end of the first cooling pipe and the third cooling pipe, the two ends of the first rigid pipe are respectively located at one end of the first cooling pipe and the second cooling pipe, the two ends of the second rigid pipe are respectively located at one end of the third cooling pipe and the fourth cooling pipe, and the two ends of the second cooling pipe and the fourth cooling pipe are respectively fixedly installed with a water inlet and a water outlet.

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

[0014] 1. This utility model replaces the flexible hose with a rigid pipe layout consisting of a first rigid pipe, a second rigid pipe, and a third rigid pipe, completely avoiding pipe crossing or sagging, ensuring smooth coolant flow path, and reducing local resistance. Compared with the traditional method of connecting multiple cooling pipes with flexible hoses, it effectively avoids the situation where the flexible hoses cross and twist or sag and collapse, and the coolant flow path is not distorted, preventing the inability to quickly and effectively remove heat from the mold, which would significantly reduce the cooling efficiency of the injection mold.

[0015] 2. This utility model uses a handle compression spring to drive the pin out of the fixed socket, which can quickly disconnect the connection between the connector and the mounting sleeve, shortening the disassembly time of traditional cooling pipes. It is especially suitable for scenarios that require frequent maintenance or replacement of cooling components. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cooling through hole, upper mold core, and lower mold core of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of this utility model from a second perspective;

[0020] Figure 4 This is a structural schematic diagram of the disassembled cooling component of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the mounting sleeve and connector of this utility model;

[0022] Figure 6 This is a structural schematic diagram of the compression spring and sleeve of this utility model.

[0023] The reference numerals in the diagram are as follows: 1. Upper mold core; 11. Upper template; 2. Lower mold core; 22. Lower mold plate; 3. Cooling through hole; 4. Cooling assembly; 41. First rigid pipe; 42. Second rigid pipe; 43. First cooling pipe; 44. Second cooling pipe; 45. Third cooling pipe; 46. Fourth cooling pipe; 47. Mounting sleeve; 48. Inlet; 49. Outlet; 410. Third rigid pipe; 411. Connecting joint; 412. Sealing plate; 414. Fixing hole; 415. Threaded bolt; 416. Through hole; 417. Fixing plate; 418. Pin; 419. Sleeve; 420. Compression spring; 421. Movable plate; 422. Fixing cover; 423. Handle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 3As shown, an injection mold with a cooling structure includes an upper mold core 1 and a lower mold core 2. An upper template 11 is fixedly installed at the upper end of the upper mold core 1, and a lower template 22 is fixedly installed at the lower end of the lower mold core 2. Cooling through holes 3 are provided through the interiors of both the upper mold core 1 and the lower mold core 2. Cooling components 4 for cooling the mold cores of the injection mold are provided inside both the upper mold core 1 and the lower mold core 2.

[0026] In a specific embodiment, the injection mold mainly consists of an upper mold core 1, a lower mold core 2, an upper template 11, a lower template 22, a cooling through hole 3, and a cooling assembly 4. The upper mold core 1 is fixedly connected to the upper template 11, and the lower mold core 2 is fixedly connected to the lower template 22. The cooling through hole 3 penetrates the interior of the mold core, and the cooling assembly 4 is used to achieve the cooling function. The cooling assembly 4 is connected to an external cooling device through a pipe, using water or oil as the cooling medium. When the medium flows through the cooling through hole 3 in the mold core, it absorbs the heat transferred from the molten plastic to the mold core, thereby reducing the temperature of the mold core.

[0027] Please refer to Figure 2 , Figure 4 and Figure 6 As shown, as a technical optimization of this utility model, the cooling assembly 4 includes a first cooling pipe 43, a second cooling pipe 44, a third cooling pipe 45, and a fourth cooling pipe 46. The first cooling pipe 43 and the second cooling pipe 44 are both fixedly sleeved inside the cooling through hole 3, and the third cooling pipe 45 and the fourth cooling pipe 46 are both fixedly sleeved inside the cooling through hole 3. Threaded bolts 415 are fixedly installed inside the two ends of the first cooling pipe 43, the second cooling pipe 44, the third cooling pipe 45, and the fourth cooling pipe 46. A mounting sleeve 47 is fixedly installed at one end of each threaded bolt 415. Through holes 416 are opened inside the outer side of the mounting sleeve 47 near both ends. Fixing plates 417 are fixedly installed at both ends of the outer side of the mounting sleeve 47. A sleeve 419 is fixedly installed on one side of each of the two fixing plates 417. A compression spring 420 is fixedly installed on the inner wall of the sleeve 419. A movable piece 421 is fixedly connected to one end of the compression spring 420.

[0028] Furthermore, a pin 418 is fixedly connected to the center of the movable piece 421. The pin 418 slides through the sleeve 419 and the fixing piece 417, and the pin 418 is slidably fitted inside the through hole 416 of the mounting head 47. A handle 423 is fixedly installed at one end of the pin 418, and a fixing cover 422 slides through the outer side of one end of the pin 418. One end of the fixing cover 422 is fixedly installed at one end of the sleeve 419. A connector 411 is fitted inside the mounting head 47. A fixing hole 414 is opened on the outer side of the connector 411. The pin 418 is snapped into the inside of the fixing hole 414. A sealing piece 412 is fixedly installed on the outer side of the connector 411. One side of the sealing piece 412 is tightly fitted to the other side of the mounting head 47.

[0029] Furthermore, one end of each of the two mounting caps 47 is fixedly connected to a third rigid pipe 410, a first rigid pipe 41, and a second rigid pipe 42. The two ends of the third rigid pipe 410 are respectively located at one end of the first cooling pipe 43 and the third cooling pipe 45. The two ends of the first rigid pipe 41 are respectively located at one end of the first cooling pipe 43 and the second cooling pipe 44. The two ends of the second rigid pipe 42 are respectively located at one end of the third cooling pipe 45 and the fourth cooling pipe 46. One end of the second cooling pipe 44 and the fourth cooling pipe 46 is fixedly installed with a water inlet 48 and a water outlet 49, respectively.

[0030] In a specific embodiment, when the injection mold is cooled, the first cooling pipe 43, the second cooling pipe 44, the third cooling pipe 45, and the fourth cooling pipe 46 are all nested within the mold cooling through-hole 3. Coolant is injected into the second cooling pipe 44 through the inlet 48. The coolant flows sequentially through the first rigid pipe 41, the first cooling pipe 43, the third rigid pipe 410, the third cooling pipe 45, the second rigid pipe 42, and the fourth cooling pipe 46. During the circulation process, the coolant exchanges heat with the area around the cooling through-hole 3 through the pipe walls. The coolant, after absorbing heat, is discharged from the outlet 49. After completing one cooling cycle, during disassembly and installation, pull the handle 423 of the part to be disassembled, compress the spring 420 to disengage the pin 418 from the fixed socket 414, pull the connector 411 out of the mounting sleeve 47, disconnect the coolant line, and inspect or replace the cooling pipe or other components. During reinstallation, insert the connector 411 into the mounting sleeve 47, release the handle 423, and the pin 418 will automatically snap into the fixed socket 414 under the action of the spring, thus completing the connection between the first rigid pipe 41, the second rigid pipe 42, and the third rigid pipe 410 and multiple cooling pipes.

[0031] In use, when the injection mold is cooled, the first cooling pipe 43, the second cooling pipe 44, the third cooling pipe 45, and the fourth cooling pipe 46 are all nested within the mold cooling through-hole 3. Coolant is injected into the second cooling pipe 44 through the inlet 48. The coolant flows sequentially through the first rigid pipe 41, the first cooling pipe 43, the third rigid pipe 410, the third cooling pipe 45, the second rigid pipe 42, and the fourth cooling pipe 46. During circulation, the coolant exchanges heat with the area around the cooling through-hole 3 through the pipe walls. After absorbing heat, the coolant exits through the outlet 49. After discharge, a cooling cycle is completed. When disassembling and installing, pull the handle 423 of the part to be disassembled, compress the spring 420 to make the pin 418 disengage from the fixed socket 414, pull the connector 411 out of the mounting sleeve 47, disconnect the coolant line, and inspect or replace the cooling pipe or other components. When reinstalling, insert the connector 411 into the mounting sleeve 47, release the handle 423, and the pin 418 will automatically snap into the fixed socket 414 under the action of the spring, thus completing the connection between the first hard pipe 41, the second hard pipe 42, and the third hard pipe 410 and multiple cooling pipes.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An injection mold with a cooling structure, characterized in that: The mold includes an upper mold core (1) and a lower mold core (2). An upper template (11) is fixedly installed at the upper end of the upper mold core (1), and a lower template (22) is fixedly installed at the lower end of the lower mold core (2). Cooling through holes (3) are provided inside both the upper mold core (1) and the lower mold core (2). Cooling components (4) for cooling the injection mold core are provided inside both the upper mold core (1) and the lower mold core (2).

2. The injection mold with a cooling structure according to claim 1, characterized in that: The cooling assembly (4) includes a first cooling pipe (43), a second cooling pipe (44), a third cooling pipe (45), and a fourth cooling pipe (46). The first cooling pipe (43) and the second cooling pipe (44) are both fixedly sleeved inside the cooling through hole (3). The third cooling pipe (45) and the fourth cooling pipe (46) are both fixedly sleeved inside the cooling through hole (3). Threaded bolts (415) are fixedly installed inside the two ends of the first cooling pipe (43), the second cooling pipe (44), the third cooling pipe (45), and the fourth cooling pipe (46). An installation sleeve (47) is fixedly installed at one end of each of the multiple threaded bolts (415).

3. The injection mold with a cooling structure according to claim 2, characterized in that: The mounting sleeve (47) has through holes (416) at both ends on the outer side. Fixing plates (417) are fixedly installed at both ends on the outer side of the mounting sleeve (47). Sleeves (419) are fixedly installed on one side of each of the two fixing plates (417). Compression springs (420) are fixedly installed on the inner wall of the sleeves (419). A movable piece (421) is fixedly connected to one end of the compression springs (420).

4. The injection mold with a cooling structure according to claim 3, characterized in that: The movable piece (421) is fixedly connected to a pin (418) near the center. The pin (418) slides through the sleeve (419) and the fixed piece (417), and the pin (418) is slidably sleeved inside the through hole (416) of the mounting head (47).

5. An injection mold with a cooling structure according to claim 4, characterized in that: A handle (423) is fixedly installed at one end of the pin (418), and a fixing cover (422) slides through the outer side of one end of the pin (418). One end of the fixing cover (422) is fixedly installed at one end of the sleeve (419).

6. An injection mold with a cooling structure according to claim 4, characterized in that: The mounting sleeve (47) is fitted with a connector (411) inside. The outer side of the connector (411) is provided with a fixing hole (414). The fixing hole (414) is fitted with a pin (418). A sealing plate (412) is fixedly installed on the outer side of the connector (411). One side of the sealing plate (412) is tightly fitted to the other side of the mounting sleeve (47).

7. An injection mold with a cooling structure according to claim 6, characterized in that: One end of each of the two mounting sleeves (47) is fixedly connected to a third rigid pipe (410), a first rigid pipe (41), and a second rigid pipe (42). The two ends of the third rigid pipe (410) are respectively located at one end of the first cooling pipe (43) and the third cooling pipe (45). The two ends of the first rigid pipe (41) are respectively located at one end of the first cooling pipe (43) and the second cooling pipe (44). The two ends of the second rigid pipe (42) are respectively located at one end of the third cooling pipe (45) and the fourth cooling pipe (46). The two ends of the second cooling pipe (44) and the fourth cooling pipe (46) are respectively fixedly installed with an inlet (48) and an outlet (49).

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