Die waterway structure

Abstract

The utility model provides a mold waterway structure, which belongs to the technical field of molds and comprises a mold core body, the mold core body is sequentially provided with a clamping area, a push plate area and a forming area from outside to inside along the length direction, two cooling pipelines are arranged in the mold core body along the length direction, and the two cooling pipelines are arranged side by side along the width direction of the mold core body. A communicating pipeline, a water inlet pipeline and a water outlet pipeline are arranged in the mold core body in the width direction, the communicating pipeline is located in the forming area and communicates with the two cooling pipelines, the water inlet pipeline and the water outlet pipeline are arranged in the clamping area in a bilateral symmetry mode and communicate with the two cooling pipelines in a one-to-one correspondence mode, and the two cooling pipelines are both sleeved with heat insulation pipes. The thermal insulation pipe is located in the clamping area and the push plate area and partially extends to the forming area. The cooling water pipe can reach different cooling temperatures in different areas of the forming area, the effect that the cooling speeds in the areas with different thicknesses are different is finally achieved, and the problem that the product performance is affected by local combination lines after a product is formed is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and more specifically relates to a mold water channel structure. Background Art

[0002] During the injection molding of the battery shell, a cooling water channel is preset in the mold core. By passing cooling water into the cooling water channel, local cooling of the battery shell is achieved, ultimately achieving the purpose of rapid molding of the battery shell.

[0003] However, due to the thickness difference of the battery shell itself, the cooling speed requirements of the battery shell in different thickness areas are different. Conventional cooling water channels have the same pipe diameter and often cannot achieve different cooling temperatures in different thickness areas, thus making it difficult to achieve different cooling speeds in different thickness areas. Utility Model Content

[0004] The utility model aims to provide a mold water channel structure, aiming to solve the problem that conventional cooling water channels are often difficult to achieve different cooling speed effects in different thickness areas due to the same pipe diameter.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a mold water channel structure, including a core body, the core body is provided with a clamping area, a push plate area and a molding area in sequence from the outside to the inside along the length direction, two cooling pipelines are arranged inside the core body along the length direction, the two cooling pipelines are arranged side by side along the width direction of the core body, and a connecting pipeline, a water inlet pipeline and a water outlet pipeline are arranged inside the core body along the width direction, the connecting pipeline is located in the molding area and connects the two cooling pipelines respectively, the water inlet pipeline and the water outlet pipeline are symmetrically arranged in the clamping area on the left and right, and connect the two cooling pipelines one by one respectively, and the outside of the two cooling pipelines are both provided with an insulation pipe, and the insulation pipe is located in the clamping area and the push plate area and partially extends to the molding area.

[0006] In a possible implementation, a temperature-insulating chamber is provided between the temperature-insulating tube and the cooling pipeline.

[0007] In a possible implementation, the temperature-insulating chamber is filled with a temperature-insulating material.

[0008] In a possible implementation, a plurality of partitions are radially arranged in the temperature-isolating chamber, and the plurality of partitions divide the temperature-isolating chamber into a plurality of temperature-isolating sub-chambers.

[0009] In a possible implementation, the temperature-isolating chamber is provided with a medium filled with a low-temperature medium or a high-temperature medium.

[0010] In a possible implementation, a middle spacer sleeve is coaxially arranged in the temperature-insulating chamber, the middle spacer sleeve is respectively connected to a plurality of the partitions, and the middle spacer sleeve divides the temperature-insulating chamber into an external temperature-insulating chamber and an internal temperature-insulating chamber.

[0011] In a possible implementation, the length of the insulation tube extending to the forming area is 1 / 3 of the length of the forming area.

[0012] In a possible implementation, the outer diameter of the insulation tube is not less than twice the outer diameter of the cooling pipeline.

[0013] In a possible implementation, the width of the clamping area, the width of the pushing plate area, and the width of the forming area decrease in sequence.

[0014] The beneficial effect of a mold water channel structure provided by the utility model is that: compared with the prior art, the clamping area of ​​the core body is clamped and fixed, the outer side of the push plate area is adapted to the inner side of the push plate that moves forward and backward, and the molding area extends to the inside of the mold cavity. When the battery shell is injection molded, the coolant enters one of the cooling pipes through the water inlet pipe, then enters another cooling pipe through the connecting pipe, and finally is discharged through the water outlet pipe. The purpose of cooling the battery shell during the injection molding process is achieved by continuously introducing the coolant. Among them, an insulation pipe is sleeved on the outside of the two cooling pipes, and the temperature of the portion of the cooling pipe covering the molding area by the insulation pipe is higher than the temperature of the portion of the cooling pipe not covering the molding area, so that the cooling water pipe reaches different cooling temperatures in different areas of the molding area, and finally achieves the effect of different cooling speeds in different thickness areas, reducing the problem of local bonding lines affecting product performance after product molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of a mold water channel structure provided by the utility model;

[0017] Figure 2 A cross-sectional view of a thermal insulation tube provided in a first embodiment of the utility model;

[0018] Figure 3 for Figure 2 lateral view of;

[0019] Figure 4A cross-sectional view of a thermal insulation tube provided in a second embodiment of the utility model;

[0020] Figure 5 for Figure 4 lateral view of;

[0021] Figure 6 A cross-sectional view of a thermal insulation tube provided in a third embodiment of the utility model;

[0022] Figure 7 for Figure 6 lateral view of;

[0023] Figure 8 A cross-sectional view of a thermal insulation tube provided in a fourth embodiment of the utility model;

[0024] Fig. 9 for Figure 8 Side view of .

[0025] Description of reference numerals:

[0026] 100, clamping area; 200, push plate area; 300, molding area; 400, cooling pipeline; 500, connecting pipeline; 600, insulation pipe; 610, insulation chamber; 620, insulation material; 630, partition; 640, low-temperature medium; 650, high-temperature medium; 660, middle partition sleeve; 670, external insulation compartment; 680, internal insulation compartment; 700, water inlet pipeline; 800, water outlet pipeline. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] See also Figure 1Now, a mold water channel structure provided by the utility model is described. A mold water channel structure includes a core body, and the core body is sequentially provided with a clamping area 100, a push plate area 200 and a molding area 300 along the length direction from the outside to the inside. Two cooling pipelines 400 are arranged inside the core body along the length direction. The two cooling pipelines 400 are arranged side by side along the width direction of the core body. A connecting pipeline 500, a water inlet pipeline 700 and a water outlet pipeline 800 are arranged inside the core body along the width direction. The connecting pipeline 500 is located in the molding area 300 and is respectively connected to the two cooling pipelines 400. The water inlet pipeline 700 and the water outlet pipeline 800 are symmetrically arranged in the clamping area 100, and are respectively connected to the two cooling pipelines 400 one by one. The outsides of the two cooling pipelines 400 are both sleeved with a thermal insulation pipe 600, and the thermal insulation pipe 600 is located in the clamping area 100 and the push plate area 200 and partially extends to the molding area 300.

[0029] The utility model provides a mold water channel structure. Compared with the prior art, the clamping area 100 of the core body is clamped and fixed, the outer side of the push plate area 200 is adapted to the inner side of the push plate moving forward and backward, and the molding area 300 extends to the inside of the mold cavity. When the battery shell is injection molded, the coolant enters one of the cooling pipes 400 through the water inlet pipe 700, then enters another cooling pipe 400 through the connecting pipe 500, and finally is discharged through the water outlet pipe 800. The purpose of cooling the battery shell during the injection molding process is achieved by continuously introducing the coolant. Among them, the insulation pipe 600 is sleeved on the outside of the two cooling pipes 400, and the temperature of the portion of the cooling pipe 400 covering the molding area 300 of the insulation pipe 600 is higher than the temperature of the portion of the cooling pipe 400 not covering the molding area 300, so that the cooling water pipe reaches different cooling temperatures in different areas of the molding area 300, and finally achieves the effect of different cooling speeds in different thickness areas, reducing the problem of local joint lines affecting product performance after product molding.

[0030] Specifically, an insulation chamber 610 is provided between the insulation tube 600 and the cooling pipeline 400. The insulation chamber 610 can weaken the heat conduction of the cooling pipeline 400 to the temperature of the molding area 300, reduce the cooling rate of the area, thereby forming different cooling areas in different areas of the cooling pipeline 400. The temperature of the area of ​​the cooling water pipe corresponding to the insulation chamber 610 is higher than the temperature of the area of ​​the cooling pipeline 400 not covered by the insulation tube 600.

[0031] In the first embodiment, see Figure 2 and Figure 3 The insulation chamber 610 is filled with insulation material 620 , and the insulation material 620 may be thermal insulation cotton, which can significantly reduce the heat conduction efficiency of the cooling water channel to the molding area 300 .

[0032] In the second embodiment, see Figure 4 and Figure 5 A plurality of partitions 630 are radially arranged in the insulation chamber 610, and the plurality of partitions 630 divide the insulation chamber 610 into a plurality of insulation sub-chambers. The inner edge of the partition 630 is connected to the outer wall of the cooling pipe 400, and the outer edge of the partition 630 is connected to the inner wall of the insulation chamber 610, thereby forming a plurality of closed insulation sub-chambers. The area of ​​the cooling pipe 400 covered by the insulation pipe 600 can reduce the heat conduction efficiency of the cooling pipe 400 to the molding area 300, and the temperature of the area of ​​the cooling water pipe corresponding to the insulation sub-chamber is higher than the temperature of the area of ​​the cooling pipe 400 not covered by the insulation pipe 600.

[0033] In the third embodiment, see Figure 8 and Fig. 9 , a low-temperature medium 640 or a high-temperature medium 650 is provided in the insulation chamber 610. When the insulation chamber 610 is filled with the low-temperature medium 640, the temperature of the low-temperature medium 640 is lower than the temperature of the coolant in the cooling pipeline 400, and the temperature of the area of ​​the cooling pipeline 400 covered by the insulation tube 600 is lower than the temperature of the area of ​​the cooling pipeline 400 not covered by the insulation tube 600, so as to form a temperature difference between different areas. When the insulation chamber 610 is filled with the high-temperature medium 650, the temperature of the high-temperature medium 650 is higher than the room temperature, which is generally 25°C, and the temperature of the area of ​​the cooling pipeline 400 covered by the insulation tube 600 is higher than the temperature of the area of ​​the cooling pipeline 400 not covered by the insulation tube 600, so as to form a temperature difference between different areas.

[0034] In the third embodiment, see Figure 6 and Figure 7 A middle spacer sleeve 660 is coaxially arranged in the insulation chamber 610, and the middle spacer sleeve 660 is respectively connected to a plurality of partitions 630, and the middle spacer sleeve 660 divides the insulation chamber into an outer insulation chamber 670 and an inner insulation chamber 680. The outer insulation chamber 670 and the inner insulation chamber 680 can be filled with low-temperature medium 640 or high-temperature medium 650 of different temperatures, respectively, so as to achieve gradient cooling or gradient heating, so that the insulation tube 600 can achieve better cooling or heating effects.

[0035] Preferably, the length of the insulation tube 600 extending to the molding area 300 is 1 / 3 of the length of the molding area 300. The length of the insulation tube 600 is more suitable for the molding cooling of the battery shell, and the cooling rate of the middle of the battery shell can be greater than the cooling rate of the edge of the battery shell. Of course, for different products, the length of the insulation tube 600 extending to the molding area 300 can be designed according to the specific product, which will not be repeated here.

[0036] Preferably, the outer diameter of the insulation tube 600 is not less than twice the outer diameter of the cooling pipeline 400, ensuring that the insulation tube 600 has sufficient wall thickness so that the temperatures of different areas of the water-cooling pipeline can have large differences.

[0037] In addition, the width of the clamping area 100, the width of the push plate area 200 and the width of the molding area 300 decrease in sequence to cooperate with the injection molding equipment to complete a series of operations such as clamping and positioning of the core body, injection molding and demoulding.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mold water channel structure, characterized in that: The invention comprises a core body, wherein the core body is provided with a clamping area (100), a push plate area (200) and a molding area (300) in sequence from the outside to the inside along the length direction, two cooling pipelines (400) are provided inside the core body along the length direction, and the two cooling pipelines (400) are arranged side by side along the width direction of the core body, and a connecting pipeline (500), a water inlet pipeline (700) and a water outlet pipeline (800) are provided inside the core body along the width direction, and the connecting pipeline (500) is located The molding area (300) is connected to the two cooling pipelines (400) respectively. The water inlet pipeline (700) and the water outlet pipeline (800) are symmetrically arranged in the clamping area (100) and are connected to the two cooling pipelines (400) respectively. The two cooling pipelines (400) are both externally sleeved with a thermal insulation pipe (600). The thermal insulation pipe (600) is located in the clamping area (100) and the push plate area (200) and partially extends to the molding area (300).

2. A mold water channel structure according to claim 1, characterized in that: A temperature-insulating chamber (610) is provided between the temperature-insulating tube (600) and the cooling pipeline (400).

3. A mold water channel structure as claimed in claim 2, characterized in that: The temperature-insulating chamber (610) is filled with a temperature-insulating material (620).

4. A mold water channel structure as claimed in claim 2, characterized in that: A plurality of partitions (630) are radially arranged in the temperature-isolating chamber (610), and the plurality of partitions (630) divide the temperature-isolating chamber (610) into a plurality of temperature-isolating sub-chambers.

5. A mold water channel structure as claimed in claim 2, characterized in that: The temperature-isolating chamber (610) is filled with a low-temperature medium (640) or a high-temperature medium (650).

6. A mold water channel structure as claimed in claim 4, characterized in that: A middle spacer sleeve (660) is coaxially arranged in the temperature-insulating chamber (610), and the middle spacer sleeve (660) is respectively connected to a plurality of the partitions (630). The middle spacer sleeve (660) divides the temperature-insulating chamber into an external temperature-insulating chamber (670) and an internal temperature-insulating chamber (680).

7. A mold water channel structure as claimed in claim 1, characterized in that: The length of the insulation tube (600) extending to the molding zone (300) is 1 / 3 of the length of the molding zone (300).

8. A mold water channel structure as claimed in claim 1, characterized in that: The outer diameter of the thermal insulation tube (600) is not less than twice the outer diameter of the cooling pipeline (400).

9. A mold water channel structure according to any one of claims 1 to 8, characterized in that: The width of the clamping area (100), the width of the push plate area (200), and the width of the molding area (300) decrease in sequence.

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