Battery rubber ring injection mold

Abstract

The utility model belongs to injection mold technical field discloses a battery rubber ring injection mold, including front mould board and back mould board, be provided with front mould insert on the front mould board, be provided with back mould insert on the back mould board, back mould insert can butt with front mould insert, back mould insert has first central axis, front mould insert has second central axis, be provided with positioning piece between front mould insert and back mould insert, positioning piece is used for making first central axis and second central axis coincide, the forming cavity that is annularly arranged around first central axis is formed between front mould insert and back mould insert, the feed channel is set up in the front mould insert, the forming cavity is communicated with the feed channel through the feed opening, and the feed opening is annularly arranged around first central axis. The utility model discloses a battery rubber ring injection mold sets up through the feed opening of annularly, makes the feed channel even annularly glue to the forming cavity of annularly arranged along the feed opening, guarantees the evenness of gluing, thereby guarantees the welding effect of sizing material, improves the forming quality of battery rubber ring.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to a battery rubber ring injection mold. Background Technology

[0002] As a crucial sealing component of a battery, the rubber ring plays a vital role in isolating the positive and negative electrodes. The quality of the rubber ring directly impacts the battery's performance and safety. Currently, rubber rings are typically manufactured from rubber or plastic materials using injection molding machines. Existing molds often employ single-point or multi-point injection methods. However, this injection method can easily lead to uneven injection in the ring structure, resulting in poor welding and causing performance issues such as brittle fracture during use. Utility Model Content

[0003] The purpose of this utility model is to provide a battery rubber ring injection mold with a simple structure and a ring-shaped injection port for uniform glue injection and good molding effect.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A battery rubber ring injection mold is provided, including a front mold plate and a rear mold plate. A front mold insert is provided on the front mold plate, and a rear mold insert is provided on the rear mold plate. The rear mold insert is movable along a first direction and abuts against the front mold insert. The rear mold insert has a first central axis extending along the first direction, and the front mold insert has a second central axis extending along the first direction. A positioning member is provided between the front mold insert and the rear mold insert to limit the relative position of the front mold insert and the rear mold insert so that the first central axis and the second central axis are coincident. A molding cavity is formed between the front mold insert and the rear mold insert and arranged annularly around the first central axis. A feeding channel is provided in the front mold insert, and the molding cavity is connected to the feeding channel through a feeding port arranged annularly around the first central axis.

[0006] As a preferred embodiment of the battery rubber ring injection mold, the positioning component includes a positioning part and a positioning groove. The positioning part is provided on one side of the two adjacent sides of the front mold insert and the rear mold insert, and the positioning groove is provided on the other side. The positioning part is inserted into the positioning groove.

[0007] As a preferred embodiment of the battery rubber ring injection mold, the positioning part has a third central axis extending along the first direction, and the positioning groove has a fourth central axis extending along the first direction, wherein the first central axis, the second central axis, the third central axis and the fourth central axis are arranged to coincide.

[0008] As a preferred embodiment of the battery rubber ring injection mold, the opening of the positioning groove gradually increases from the bottom of the groove towards the opening; and / or,

[0009] The cross-sectional dimension of the positioning part at the end furthest from the bottom of the positioning groove is larger than the cross-sectional dimension of the positioning part at the end adjacent to the bottom of the positioning groove.

[0010] As a preferred embodiment of a battery rubber ring injection mold, the rear mold insert has a surrounding wall arranged circumferentially around the first central axis on the side facing the front mold insert, and the surrounding wall encloses and forms a first receiving groove. The front mold insert has a first protrusion on the side facing the rear mold insert, and the first protrusion is inserted into the first receiving groove. The surrounding wall and the first protrusion are spaced apart to form the molding cavity. The first protrusion and the bottom of the first receiving groove are spaced apart to form a feeding cavity. The feeding channel communicates with the feeding cavity, and the connection between the molding cavity and the feeding cavity is the feeding port.

[0011] As a preferred embodiment of the battery rubber ring injection mold, the rear mold insert has a second protrusion on the side facing the front mold insert, the second protrusion has a first receiving groove on the side facing the front mold insert, the front mold insert has a second receiving groove on the side facing the rear mold insert, the bottom of the second receiving groove has the first protrusion, and the first protrusion is spaced apart from the groove wall of the second receiving groove. The second protrusion is inserted into the second receiving groove. The outer peripheral wall of the first protrusion and the groove wall of the first receiving groove form an annular first injection cavity. The second protrusion and the bottom of the second receiving groove form a second injection cavity. The outer peripheral wall of the second protrusion and the groove wall of the second receiving groove form an annular third injection cavity. The first injection cavity, the second injection cavity and the third injection cavity communicate with each other to form the molding cavity.

[0012] As a preferred embodiment of the battery rubber ring injection mold, the bottom of the first receiving groove is at least partially inclined, and the inclined bottom of the first receiving groove is inclined from one end away from the first central axis toward one end adjacent to the first central axis and toward the direction away from the front mold insert.

[0013] As a preferred embodiment of a battery rubber ring injection mold, the front mold insert includes a first positioning seat and a first molding block. The first positioning seat is detachably connected to the front template. The first positioning seat has a first mounting hole extending through it along the first direction. A second receiving groove is circumferentially provided on the side of the first positioning seat adjacent to the rear template and along the outer edge of the first mounting hole. The first molding block is disposed within the first mounting hole, and at least a portion of the first molding block is located within the second receiving groove. The rear mold insert includes a second positioning seat and a second molding block. The second positioning seat is detachably connected to the rear template. The second positioning seat has a second mounting hole extending through it along the first direction. The second molding block is disposed within the second mounting hole, and a portion of the second molding block protrudes from the second mounting hole. The second molding block is provided with a first receiving groove on the side facing the front template. The second molding block is inserted into the second receiving groove, and the first molding block is inserted into the first receiving groove. The outer peripheral wall of the first molding block and the groove wall of the first receiving groove are spaced apart to form a first injection cavity. The second molding block and the bottom of the second receiving groove are spaced apart to form a second injection cavity. The outer peripheral wall of the second molding block and the groove wall of the second receiving groove are spaced apart to form a third injection cavity. The first injection cavity, the second injection cavity, and the third injection cavity are connected to form the molding cavity. The first molding block and the bottom of the first receiving groove are spaced apart to form a feeding cavity. The connection between the molding cavity and the feeding cavity is the feeding port. The first molding block is provided with a feeding channel through the first direction, which communicates with the feeding cavity.

[0014] In a preferred embodiment of a battery rubber ring injection mold, the central axis of the first positioning seat, the central axis of the first molding block, the central axis of the second positioning seat, and the central axis of the second molding block all extend along the first direction, and the central axes of the first positioning seat, the first molding block, the second positioning seat, and the second molding block are coincidentally arranged; and / or,

[0015] The central axis of the first mounting hole coincides with the central axis of the second mounting hole. On one side of the first positioning seat and the second positioning seat, which are adjacent to each other, a positioning groove is provided in a ring around the central axis of the first mounting hole, and on the other side, a positioning part is provided in a ring around the central axis of the first mounting hole. The positioning part is inserted into the positioning groove.

[0016] As a preferred embodiment of the battery rubber ring injection mold, the battery rubber ring injection mold further includes an ejector pin, and a third mounting hole is provided through the bottom of the first receiving groove. The ejector pin is movably disposed within the third mounting hole, and the ejector pin is used to eject the battery rubber ring from the molding cavity; and / or,

[0017] The battery rubber ring injection mold also includes a pressure plate, and the rear template and the second molding block are both disposed on the pressure plate.

[0018] As a preferred embodiment of a battery rubber ring injection mold, at least two front mold inserts are spaced apart along a second direction on the front mold plate, and at least two rear mold inserts are correspondingly provided on the rear mold plate, wherein the second direction is perpendicular to the first direction; and / or

[0019] At least two front mold inserts are spaced apart along a third direction on the front template, and at least two rear mold inserts are correspondingly provided on the rear template, wherein the third direction is perpendicular to the first direction; and / or,

[0020] The front template is provided with a first water cooling channel, and the rear template is provided with a second water cooling channel. The first water cooling channel and the second water cooling channel are connected to an external cooling water source.

[0021] The beneficial effects of this utility model are as follows: By setting the feeding port in an annular shape, the feeding channel can uniformly feed the glue into the annularly set molding cavity along the feeding port, ensuring the uniformity of glue feeding, thereby ensuring the welding effect of the glue, improving the molding quality of the battery rubber ring, and improving the problem of poor welding and easy breakage of the battery rubber ring; by setting the positioning part, the first central axis and the second central axis are aligned to ensure the docking accuracy of the front mold insert and the rear mold insert, thereby ensuring the consistency of the size and shape of the molding cavity, improving the product molding accuracy of the battery rubber ring, and ensuring the consistency and production quality of the molded product. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a cross-sectional view of the battery rubber ring injection mold according to an embodiment of the present invention. Figure 1 ;

[0024] Figure 2 yes Figure 1 An enlarged view of point A;

[0025] Figure 3 This is an exploded view of the battery rubber ring injection mold according to an embodiment of the present invention;

[0026] Figure 4 This is a cross-sectional view of the battery rubber ring injection mold according to an embodiment of the present invention. Figure 2 ;

[0027] Figure 5 yes Figure 4 An enlarged view of point B;

[0028] Figure 6 This is an exploded view of the front template and the front mold insert according to an embodiment of the present invention;

[0029] Figure 7 This is a cross-sectional view of the front template and the front mold insert according to an embodiment of the present utility model;

[0030] Figure 8 This is an exploded view of the rear template and the rear mold insert according to an embodiment of the present utility model;

[0031] Figure 9 This is a cross-sectional view of the rear template and the rear mold insert according to an embodiment of the present utility model.

[0032] In the picture:

[0033] 100, First central axis; 200, Molding cavity; 201, First injection cavity; 202, Second injection cavity; 203, Third injection cavity; 300, Feed cavity; 400, Second central axis;

[0034] 1. Front mold plate; 11. First mounting slot; 2. Rear mold plate; 21. Third mounting slot; 3. Front mold insert; 31. Feed channel; 32. First protrusion; 33. Second receiving slot; 34. Positioning slot; 35. First positioning seat; 351. First mounting hole; 36. First molding block; 37. First water cooling channel; 38. Second mounting slot; 4. Rear mold insert; 41. Enclosure; 42. First receiving slot; 43. Second protrusion; 44. Positioning part; 45. Second positioning seat; 451. Second mounting hole; 46. Second molding block; 47. Third mounting hole; 48. Second water cooling channel; 5. Ejector pin; 6. Pressure plate. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] like Figure 1 and Figure 2 As shown, the battery rubber ring injection mold of this utility model embodiment includes a front mold plate 1 and a rear mold plate 2. A front mold insert 3 is provided on the front mold plate 1, and a rear mold insert 4 is provided on the rear mold plate 2. The rear mold insert 4 can move along a first direction and abut against the front mold insert 3. The rear mold insert 4 has a first central axis 100 extending along the first direction (the first direction is the Z direction shown in the figure). The front mold insert 3 has a second central axis 400 extending along the first direction. A positioning member is provided between the front mold insert 3 and the rear mold insert 4. The positioning member is used to limit the relative position of the front mold insert 3 and the rear mold insert 4 so that the first central axis 100 and the second central axis 400 coincide. A molding cavity 200 is formed between the front mold insert 3 and the rear mold insert 4 and is arranged in a ring around the first central axis 100. A feeding channel 31 is provided in the front mold insert 3. The molding cavity 200 is connected to the feeding channel 31 through a feeding port. The feeding port is arranged in a ring around the first central axis 100.

[0040] It is understandable that by setting the annular feed port, the feed channel 31 can uniformly feed the glue into the annularly set molding cavity 200 along the feed port. The annular feed port and the annular molding cavity 200 are connected annularly to ensure the uniformity of glue feeding, thereby ensuring the welding effect of the glue, improving the molding quality of the battery rubber ring, and improving the problem of poor welding and easy breakage of the battery rubber ring. By setting the positioning part, the first central axis 100 and the second central axis 400 are aligned to ensure the docking accuracy of the front mold insert 3 and the rear mold insert 4, thereby ensuring the consistency of the size and shape of the molding cavity 200, improving the product molding accuracy of the battery rubber ring, and ensuring the consistency and production quality of the molded product.

[0041] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, the positioning component includes a positioning part 44 and a positioning groove 34. The positioning groove 34 is provided on the side of the front mold insert 3 facing the rear mold insert 4, and the positioning part 44 is provided on the side of the rear mold insert 4 facing the front mold insert 3. The positioning part 44 is inserted into the positioning groove 34. Through the cooperation of the positioning part 44 and the positioning groove 34, the docking accuracy of the front mold insert 3 and the rear mold insert 4 is effectively guaranteed, thereby ensuring the consistency of the size and shape of the molding cavity 200, improving the molding accuracy of the product, and ensuring the consistency and production quality of the molded product. In addition, besides setting the positioning groove 34 on the side of the front mold insert 3 facing the rear mold insert 4 and setting the positioning part 44 on the side of the rear mold insert 4 facing the front mold insert 3, the positioning groove 34 can also be set on the side of the rear mold insert 4 facing the front mold insert 3 and the positioning part 44 can be set on the side of the front mold insert 3 facing the rear mold insert 4; or the positioning groove 34 and the positioning part 44 can both be provided on the adjacent sides of the front mold insert 3 and the rear mold insert 4. Specific examples are not provided here.

[0042] Furthermore, the positioning part 44 has a third central axis extending along the first direction, and the positioning groove 34 has a fourth central axis extending along the first direction. The first central axis 100, the second central axis 400, the third central axis, and the fourth central axis are arranged to coincide, that is, the positioning part 44 and the positioning groove 34 are both arranged in a ring around the first central axis 100. The positioning part 44, the positioning groove 34, the forming cavity 200, and the feed port are coaxially arranged, which effectively ensures the positioning accuracy of the insert structure, thereby ensuring the uniformity of the wall thickness and the concentricity requirements of the battery rubber ring.

[0043] Furthermore, the opening of the positioning groove 34 gradually increases from the bottom to the top. That is, the groove wall of the positioning groove 34 is inclined, which facilitates guidance when the positioning part 44 is inserted into the positioning groove 34, increases the positioning tolerance of the insert due to deformation caused by thermal expansion and contraction, and ensures the fitting accuracy between the positioning part 44 and the positioning groove 34. In this embodiment, the second receiving groove 33 is disposed at the bottom of the positioning groove 34, and the second protrusion 43 is disposed on the side of the positioning part 44 facing the front template 1.

[0044] Optionally, the cross-sectional dimension of the positioning part 44 at the end furthest from the bottom of the positioning groove 34 is larger than the cross-sectional dimension of the positioning part 44 at the end adjacent to the bottom of the positioning groove 34. That is, the outer peripheral wall of the positioning part 44 is inclined to facilitate guidance when the positioning part 44 is inserted into the positioning groove 34. When both the groove wall of the positioning groove 34 and the outer peripheral wall of the positioning part 44 are inclined, the outer peripheral wall of the positioning part 44 can abut against the groove wall of the positioning groove 34.

[0045] Preferably, the angle between the inclined outer peripheral wall of the positioning part 44 and the first central axis 100 is 1 to 30°. For example, the angle between the inclined outer peripheral wall of the positioning part 44 and the first central axis 100 is 1°, 5°, 10°, 15°, 20°, 25°, 30°, etc. If the angle is too small, it is not convenient for guidance; if the angle is too large, it occupies a lot of space and the guidance effect is poor. The angle between the inclined outer peripheral wall of the positioning part 44 and the first central axis 100 is moderate and the guidance effect is good.

[0046] In some embodiments, combined with Figure 3 , Figure 4 and Figure 5 As shown, a surrounding wall 41 is arranged around the first central axis 100 on the side of the rear mold insert 4 facing the front mold insert 3. The surrounding wall 41 encloses and forms a first receiving groove 42. A first protrusion 32 is provided on the side of the front mold insert 3 facing the rear mold insert 4. The first protrusion 32 is inserted into the first receiving groove 42. A molding cavity 200 is formed by the surrounding wall 41 and the first protrusion 32 at intervals. A feeding cavity 300 is formed by the first protrusion 32 and the bottom of the first receiving groove 42 at intervals. The feeding channel 31 communicates with the feeding cavity 300. The connection between the molding cavity 200 and the feeding cavity 300 is the feeding port. The annular wall 41 and the first protrusion 32 form an annular molding cavity 200, and the annular molding cavity 200 and the feeding cavity 300 are connected in an annular manner, that is, the annular connection port forms an annular feeding port. During injection molding, the rubber particles are introduced into the feeding cavity 300 through the feeding channel 31, and then gradually flow into the annular molding cavity 200 along the annular connection port. The annular feeding port directly and completely feeds the rubber into the annular molding cavity 200, resulting in uniform and stable rubber feeding and good welding effect.

[0047] Specifically, the rear mold insert 4 is provided with a second protrusion 43 on the side facing the front mold insert 3, the second protrusion 43 is provided with a first receiving groove 42 on the side facing the front mold insert 3, the front mold insert 3 is provided with a second receiving groove 33 on the side facing the rear mold insert 4, the bottom of the second receiving groove 33 is provided with a first protrusion 32, and the first protrusion 32 is spaced apart from the groove wall of the second receiving groove 33. The second protrusion 43 is inserted into the second receiving groove 33. The outer peripheral wall of the first protrusion 32 and the groove wall of the first receiving groove 42 form an annular first injection cavity 201. The second protrusion 43 and the bottom of the second receiving groove 33 form a second injection cavity 202. The outer peripheral wall of the second protrusion 43 and the groove wall of the second receiving groove 33 form an annular third injection cavity 203. The first injection cavity 201, the second injection cavity 202 and the third injection cavity 203 communicate to form a molding cavity 200. In other words, the first injection cavity 201 and the feeding cavity 300 are connected in an annular manner to form an annular feeding port. During injection molding, the rubber material is evenly fed into the first injection gun through the annular feeding port from the feeding cavity 300, and gradually flows to the second injection cavity 202 and the third injection cavity 203 to form the battery rubber ring, resulting in high injection molding efficiency.

[0048] Of course, in this embodiment, the outer peripheral wall of the second protrusion 43 is also provided with a third receiving groove around the first central axis 100. The third receiving groove is connected to the third injection cavity 203 and is used to form the protruding structure of the battery rubber ring.

[0049] Furthermore, the bottom of the first receiving groove 42 is at least partially inclined, with the inclined bottom of the first receiving groove 42 inclined from the end away from the first central axis 100 toward the end adjacent to the first central axis 100 and toward the direction away from the front mold insert 3. By setting the inclined bottom, on the one hand, it helps to better guide the flow of the plastic melt during injection molding. Because the inclined direction of the groove bottom flows towards the feed port, the plastic material can flow more smoothly into the molding cavity 200 when injected into the feed cavity 300, avoiding material accumulation or uneven distribution. On the other hand, it can effectively reduce defects such as bubbles and voids that may occur during mold filling, improving the finished quality of the battery rubber ring. In addition, the inclined bottom also helps the battery rubber ring to be released more easily during demolding. The inclined angle results in a smaller demolding force, which helps to reduce the adhesion between the mold surface and the battery rubber ring product, reducing damage or deformation of the molded product.

[0050] In other embodiments, such as Figure 6 and Figure 7As shown, the front mold insert 3 includes a first positioning seat 35 and a first molding block 36. The first positioning seat 35 is detachably connected to the front template 1. The first positioning seat 35 is provided with a first mounting hole 351 through the first direction. The first positioning seat 35 is provided with a second receiving groove 33 on the side adjacent to the rear template 2 and along the outer edge of the first mounting hole 351. The first molding block 36 is disposed in the first mounting hole 351, and at least part of the first molding block 36 is located in the second receiving groove 33.

[0051] like Figure 8 and Figure 9 As shown, the rear mold insert 4 includes a second positioning seat 45 and a second molding block 46. The second positioning seat 45 is detachably connected to the rear template 2. The second positioning seat 45 has a second mounting hole 451 extending through it in a first direction. The second molding block 46 is disposed in the second mounting hole 451, with a portion of the second molding block 46 protruding from the second mounting hole 451. The second molding block 46 has a first receiving groove 42 on the side facing the front template 1. The second molding block 46 is inserted into the second receiving groove 33, and the first molding block 36 is inserted into the first receiving groove 42. The outer peripheral wall of the first molding block 36 and the groove wall of the first receiving groove 42 are separated. A first injection cavity 201 is formed by the partition between the second molding block 46 and the bottom of the second receiving groove 33, forming a second injection cavity 202. A third injection cavity 203 is formed by the partition between the outer peripheral wall of the second molding block 46 and the wall of the second receiving groove 33. The first injection cavity 201, the second injection cavity 202 and the third injection cavity 203 are connected to form a molding cavity 200. A feeding cavity 300 is formed by the partition between the first molding block 36 and the bottom of the first receiving groove 42. The connection between the molding cavity 200 and the feeding cavity 300 is the feeding port. The first molding block 36 is provided with a feeding channel 31 that communicates with the feeding cavity 300 along the first direction.

[0052] By employing detachable front mold insert 3 and rear mold insert 4, as well as an insert structure composed of multiple components, the production of inserts is facilitated. Simultaneously, the installation, adjustment, maintenance, and replacement of the mold are convenient, and maintenance costs are reduced; maintenance can be achieved by replacing individual parts. In this embodiment, the first positioning seat 35 is provided with a through hole, and the front template 1 is provided with a threaded hole. Bolts pass through the through hole and are screwed into the threaded hole to connect the first positioning seat 35 and the front template 1. The threaded connection is stable and easy to disassemble. The front template 1 has a first mounting groove 11, and a first positioning seat 35 is inserted into the first mounting groove 11. A second mounting groove 38 is provided on the side of the first positioning seat 35 away from the rear template 2. A first mounting hole 351 is provided through the bottom of the second mounting groove 38. A first molding plate is set between the bottom of the first mounting groove 11 and the bottom of the second mounting groove 38. A first molding block 36 partially passes through the first mounting hole 351 and is located in the second receiving groove 33. The structure is simple and easy to disassemble and assemble. The first molding block 36 can be separated from the front template 1 by simply removing the first positioning seat 35.

[0053] In addition, the second positioning seat 45 is provided with a through hole, and the front template 1 is provided with a threaded hole. The bolt passes through the through hole and is screwed into the threaded hole to realize the connection between the first positioning seat 35 and the front template 1. The threaded connection is stable and easy to disassemble. The rear template 2 is provided with a third mounting groove 21. The second positioning seat 45 is inserted into the third mounting groove 21. The bottom of the third mounting groove 21 is provided with a third mounting hole 47. The second forming block 46 is provided on the side of the rear template 2 away from the front template 1, and part of the second forming block 46 passes through the third mounting hole 47 and the second mounting hole 451 and protrudes from the side of the rear template 2 facing the front template 1.

[0054] Furthermore, the central axis of the first positioning seat 35, the central axis of the first molding block 36, the central axis of the second positioning seat 45, and the central axis of the second molding block 46 all extend along the first direction, and the central axis of the first positioning seat 35, the central axis of the first molding block 36, the central axis of the second positioning seat 45, and the central axis of the second molding block 46 are arranged to coincide. The coaxial arrangement can ensure the concentricity of the fit of each structure, thereby ensuring the fitting accuracy of the molding cavity 200, and thus effectively ensuring the uniformity of the wall thickness and the concentricity requirements of the rubber ring.

[0055] Preferably, the central axis of the first mounting hole 351 coincides with the central axis of the second mounting hole 451. The first positioning seat 35, facing the second positioning seat 45, has a positioning groove 34 arranged annularly around the central axis of the first mounting hole 351. The second positioning seat 45, facing the first positioning seat 35, has a positioning part 44 arranged annularly around the central axis of the first mounting hole 351. The positioning part 44 is inserted into the positioning groove 34. Through the cooperation of the positioning part 44 and the positioning groove 34, and with the central axes of the positioning part 44, the positioning groove 34, the first mounting hole 351, the first positioning seat 35, the first molding block 36, the second positioning seat 45, and the second molding block 46 coinciding, the fitting accuracy of the first positioning seat 35 and the second positioning seat 45 can be effectively guaranteed. Furthermore, the concentricity of the first positioning seat 35, the first molding block 36, the second positioning seat 45, and the second molding block 46 can be strengthened, ensuring the molding effect of the battery rubber ring within the molding cavity 200.

[0056] Optionally, such as Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the battery rubber ring injection mold also includes a pressure plate 6, and the rear template 2 and the second molding block 46 are both disposed on the pressure plate 6. The pressure plate 6 has a third mounting groove 21 on the side facing the rear template 2, and the second molding block 46 is inserted into the third mounting groove 21. By setting the pressure plate 6, the pressure on the rear template 2 when it moves along the first direction and abuts against the front template 1 is reduced, effectively ensuring the structural strength of the rear template 2.

[0057] In addition, the battery rubber ring injection mold also includes an ejector pin 5. A third mounting hole 47 is provided through the bottom of the first receiving groove 42. The ejector pin 5 is movably disposed in the third mounting hole 47 and is used to eject the battery rubber ring in the molding cavity 200. During demolding, the front mold plate 1 and the rear mold plate 2 separate. The drive mechanism drives the ejector pin 5 to move towards the front mold plate 1 to eject the product on the rear mold insert 4. The bottom of the first receiving groove 42 is inclined, which facilitates demolding.

[0058] In other embodiments, such as Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, at least two front mold inserts 3 are spaced apart along a second direction (the second direction is shown as X in the diagram), and at least two rear mold inserts 4 are correspondingly arranged on the rear mold 2. The second direction is perpendicular to the first direction. At least two front mold inserts 3 are spaced apart along a third direction (the third direction is shown as Y in the diagram), and at least two rear mold inserts 4 are correspondingly arranged on the rear mold 2. The third direction is perpendicular to the first direction. By setting multiple front mold inserts 3 and their cooperating rear mold inserts 4, multiple battery rubber rings can be formed at once, improving the production efficiency of battery rubber rings. Furthermore, each corresponding front mold insert 3 and rear mold insert 4 are positioned and cooperated with by their respective positioning parts 44 and positioning grooves 34, ensuring the structural accuracy of each forming cavity 200.

[0059] Furthermore, such as Figure 1 and Figure 4 As shown, the front mold plate 1 is provided with a first water cooling channel 37, and the rear mold plate 2 is provided with a second water cooling channel 48. The first water cooling channel 37 and the second water cooling channel 48 are connected to an external cooling water source. The first water cooling channel 37 and the second water cooling channel 48 can share a single external cooling water source to ensure the consistency of the front and rear mold temperatures. Of course, the first water cooling channel 37 and the second water cooling channel 48 can also use independent external cooling water sources to independently control the temperatures of the front mold plate 1 and the front mold insert 3, and the rear mold plate 2 and the rear mold insert 4.

[0060] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery rubber ring injection mold, characterized in that, Includes a front template (1) and a rear template (2). The front template (1) is provided with a front mold insert (3), and the rear template (2) is provided with a rear mold insert (4). The rear mold insert (4) is movable along a first direction and abuts against the front mold insert (3). The rear mold insert (4) has a first central axis (100) extending along the first direction, and the front mold insert (3) has a second central axis (400) extending along the first direction. A positioning element is provided between the front mold insert (3) and the rear mold insert (4). The front mold insert (3) and the rear mold insert (4) are used to define the relative positions of the front mold insert (3) and the rear mold insert (4) so ​​that the first central axis (100) and the second central axis (400) are coincident. A molding cavity (200) is formed between the front mold insert (3) and the rear mold insert (4) and is arranged in a ring around the first central axis (100). A feeding channel (31) is provided in the front mold insert (3). The molding cavity (200) is connected to the feeding channel (31) through the feeding port. The feeding port is arranged in a ring around the first central axis (100).

2. The battery rubber ring injection mold according to claim 1, characterized in that, The positioning component includes a positioning part (44) and a positioning groove (34). The positioning part (44) is provided on one side of the front mold insert (3) and the rear mold insert (4) which are adjacent to each other, and the positioning groove (34) is provided on the other side. The positioning part (44) is inserted into the positioning groove (34).

3. The battery rubber ring injection mold according to claim 2, characterized in that, The positioning part (44) has a third central axis extending along the first direction, and the positioning groove (34) has a fourth central axis extending along the first direction. The first central axis (100), the second central axis (400), the third central axis and the fourth central axis are arranged to coincide.

4. The battery rubber ring injection mold according to claim 3, characterized in that, The opening of the positioning groove (34) gradually increases from the bottom of the groove towards the opening; and / or, The cross-sectional dimension of the positioning part (44) at the bottom end away from the positioning groove (34) is larger than the cross-sectional dimension of the positioning part (44) at the bottom end adjacent to the positioning groove (34).

5. The battery rubber ring injection mold according to any one of claims 1-4, characterized in that, The rear mold insert (4) is provided with a surrounding wall (41) around the first central axis (100) on the side facing the front mold insert (3). The surrounding wall (41) encloses and forms a first receiving groove (42). The front mold insert (3) is provided with a first protrusion (32) on the side facing the rear mold insert (4). The first protrusion (32) is inserted into the first receiving groove (42). The surrounding wall (41) and the first protrusion (32) are spaced apart to form the molding cavity (200). The first protrusion (32) and the bottom of the first receiving groove (42) are spaced apart to form a feeding cavity (300). The feeding channel (31) communicates with the feeding cavity (300). The connection between the molding cavity (200) and the feeding cavity (300) is the feeding port.

6. The battery rubber ring injection mold according to claim 5, characterized in that, The rear mold insert (4) has a second protrusion (43) on the side facing the front mold insert (3), and the second protrusion (43) has a first receiving groove (42) on the side facing the front mold insert (3). The front mold insert (3) has a second receiving groove (33) on the side facing the rear mold insert (4). The bottom of the second receiving groove (33) has the first protrusion (32), and the first protrusion (32) is spaced apart from the groove wall of the second receiving groove (33). The second protrusion (43) is inserted into the second receiving groove. (33) In the first protrusion (32), the outer peripheral wall of the first protrusion (32) and the groove wall of the first receiving groove (42) are spaced apart to form an annular first injection cavity (201), the second protrusion (43) and the bottom of the second receiving groove (33) are spaced apart to form a second injection cavity (202), the outer peripheral wall of the second protrusion (43) and the groove wall of the second receiving groove (33) are spaced apart to form an annular third injection cavity (203), and the first injection cavity (201), the second injection cavity (202) and the third injection cavity (203) are connected to form the molding cavity.

7. The battery rubber ring injection mold according to claim 5, characterized in that, The bottom of the first receiving groove (42) is at least partially inclined, and the inclined bottom of the first receiving groove (42) is inclined from one end away from the first central axis (100) toward one end adjacent to the first central axis (100) and toward the direction away from the front mold insert (3).

8. The battery rubber ring injection mold according to any one of claims 1-4, characterized in that, The front mold insert (3) includes a first positioning seat (35) and a first molding block (36). The first positioning seat (35) is detachably connected to the front template (1). The first positioning seat (35) has a first mounting hole (351) through it along the first direction. The first positioning seat (35) has a second receiving groove (33) circumferentially arranged on the side adjacent to the rear template (2) and along the outer edge of the first mounting hole (351). The first molding block (36) is disposed in the first mounting hole (351), and at least part of the first molding block is disposed therein. (36) is located in the second receiving groove (33); the rear mold insert (4) includes a second positioning seat (45) and a second molding block (46), the second positioning seat (45) is detachably connected to the rear template (2), the second positioning seat (45) is provided with a second mounting hole (451) through along the first direction, the second molding block (46) is disposed in the second mounting hole (451), and the second molding block (46) is partially exposed in the second mounting hole (451), the second molding block (46) faces the front template ( 1) A first receiving groove (42) is provided on one side, and the second molding block (46) is inserted into the second receiving groove (33). The first molding block (36) is inserted into the first receiving groove (42). The outer peripheral wall of the first molding block (36) and the groove wall of the first receiving groove (42) are spaced apart to form a first injection cavity (201). The second molding block (46) and the bottom of the second receiving groove (33) are spaced apart to form a second injection cavity (202). The outer peripheral wall of the second molding block (46) and the groove wall of the second receiving groove (33) are spaced apart. A third injection cavity (203) is formed by spacing. The first injection cavity (201), the second injection cavity (202) and the third injection cavity (203) are connected to form the molding cavity (200). The first molding block (36) and the bottom of the first receiving groove (42) are spaced apart to form a feeding cavity (300). The connection between the molding cavity (200) and the feeding cavity (300) is the feeding port. The first molding block (36) is provided with a feeding channel (31) that communicates with the feeding cavity (300) along the first direction.

9. The battery rubber ring injection mold according to claim 8, characterized in that, The central axis of the first positioning seat (35), the central axis of the first molding block (36), the central axis of the second positioning seat (45), and the central axis of the second molding block (46) all extend along the first direction, and the central axes of the first positioning seat (35), the first molding block (36), the second positioning seat (45), and the second molding block (46) are arranged to coincide; and / or, The central axis of the first mounting hole (351) coincides with the central axis of the second mounting hole (451). On one side of the first positioning seat (35) and the second positioning seat (45) adjacent to each other, a positioning groove (34) is provided in a ring around the central axis of the first mounting hole (351), and on the other side, a positioning part (44) is provided in a ring around the central axis of the first mounting hole (351). The positioning part (44) is inserted into the positioning groove (34).

10. The battery rubber ring injection mold according to claim 8, characterized in that, It also includes a ejector pin (5), and a third mounting hole (47) is provided through the bottom of the first receiving groove (42). The ejector pin (5) is movably disposed in the third mounting hole (47), and the ejector pin (5) is used to eject the battery rubber ring from the molding cavity (200); and / or, It also includes a pressure plate (6), on which the rear template (2) and the second forming block (46) are both disposed.

11. The battery rubber ring injection mold according to any one of claims 1-4, characterized in that, At least two front mold inserts (3) are spaced apart along the second direction on the front template (1), and at least two rear mold inserts (4) are correspondingly provided on the rear template (2), wherein the second direction is perpendicular to the first direction; and / or, At least two front mold inserts (3) are spaced apart along a third direction on the front template (1), and at least two rear mold inserts (4) are correspondingly provided on the rear template (2), wherein the third direction is perpendicular to the first direction; and / or, The front template (1) is provided with a first water cooling channel (37), and the rear template (2) is provided with a second water cooling channel (48). The first water cooling channel (37) and the second water cooling channel (48) are connected to an external cooling water source.

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