Arc-shaped shell mold

Abstract

The arc-shaped shell punching die comprises an upper die assembly and a lower die assembly matched with the upper die assembly for punching; the upper die assembly comprises an upper die body provided with a first arc-shaped punching surface; the lower die assembly comprises a lower die body provided with a second arc-shaped punching surface matched with the first arc-shaped punching surface; in addition, the lower die assembly further comprises a lower movable plate, a lower base plate and a working die core; the lower die body is installed on the lower movable plate and is provided with a first installation groove; the lower movable plate is installed on the lower base plate and is provided with a positioning groove; one end of the working die core is installed in the first installation groove and forms a first punching surface, the first punching surface is staggered with the second arc-shaped punching surface, the working die core is arranged in the positioning groove and abuts against the lower base plate, and the working die core is installed on the lower base plate. The arc-shaped shell punching die is suitable for specific arc shapes, stable positioning and fine adjustment of the arc.

Description

Technical Field

[0001] This application relates to the field of lithium battery manufacturing, and in particular to an arc-shaped stamping die. Background Technology

[0002] Aluminum-plastic film stamping dies are essential process equipment in the production of soft-pack lithium batteries, and are widely used in industrial production, especially in the processing of soft-pack lithium batteries. Traditional stamping dies have unreasonable structural designs, are not suitable for stamping specific arc shapes, are prone to workpiece displacement during the stamping process, and cannot achieve fine adjustment of the arc, making it difficult to meet the requirements of high-precision production.

[0003] Therefore, there is a need for an arc-shaped punching die that can adapt to specific arc shapes, has stable positioning, and allows for fine-tuning of the arc, in order to overcome the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this application is to provide an arc-shaped punching die that can adapt to a specific arc shape, has stable positioning, and allows for fine-tuning of the arc.

[0005] To achieve the above objectives, this application provides an arc-shaped stamping die suitable for stamping aluminum-plastic film, comprising an upper die assembly and a lower die assembly that cooperates with the upper die assembly for stamping; the upper die assembly includes an upper die body having a first arc-shaped stamping surface; the lower die assembly includes a lower die body, a lower moving plate, a lower base plate, and a working die core; the lower die body has a second arc-shaped stamping surface that cooperates with the first arc-shaped stamping surface; the lower die body is mounted on the lower moving plate and has a first mounting groove; the lower moving plate is mounted on the lower base plate and has a positioning groove; one end of the working die core is mounted in the first mounting groove and forms a first stamping surface, the first stamping surface being offset from the second arc-shaped stamping surface to stamp a concave-convex structure onto the aluminum-plastic film; the working die core passes through the positioning groove and abuts against the lower base plate; the working die core is mounted on the lower base plate.

[0006] In some embodiments, the working die core includes a protruding die core and a recessed die core. The protruding die core has the first stamping surface at one end away from the lower base plate and protrudes out of the first mounting groove. The recessed die core has the first stamping surface at one end away from the lower base plate and is accommodated in the first mounting groove.

[0007] In some embodiments, the upper mold body has a clearance groove corresponding to the protruding mold core; and / or, A positioning pin is provided between the upper mold body and the lower mold body.

[0008] In some embodiments, the upper mold assembly further includes an auxiliary mold core that cooperates with the recessed mold core. The upper mold body has a second mounting groove, and the auxiliary mold core is disposed in the second mounting groove. One end of the auxiliary mold core near the lower mold body has a second stamping surface and protrudes out of the second mounting groove.

[0009] In some embodiments, the upper mold assembly further includes a fixing plate mounted on the upper mold body, and the auxiliary mold core is adjustablely mounted on the fixing plate.

[0010] In some embodiments, the upper mold body has a third mounting groove that communicates with the second mounting groove, and the fixing plate is embedded in the third mounting groove.

[0011] In some embodiments, the upper mold assembly further includes an elastic element located within the second mounting groove, the elastic element being disposed between the fixed plate and the auxiliary mold core, the elastic element having a constant tendency to drive the auxiliary mold core toward a direction closer to the recessed mold core.

[0012] In some embodiments, the auxiliary mold core has a first limiting portion in the direction away from the recessed mold core, and the second mounting groove has a second limiting portion. The cooperation between the first limiting portion and the second limiting portion is used to prevent the auxiliary mold core from moving in the direction closer to the recessed mold core.

[0013] In some embodiments, the upper mold assembly further includes a limiting member, one end of which is fixedly connected to the auxiliary mold core, and the other end of which is movably disposed on the fixing plate to restrict the auxiliary mold core from moving toward the recessed mold core.

[0014] In some embodiments, the limiting member includes a first limiting member and two second limiting members, the elastic member is fitted onto the second limiting member, and there are two elastic members, one elastic member is fitted onto one second limiting member, and the second limiting member is located between the two first limiting members.

[0015] Compared with the prior art, the arc-shaped stamping mold of this application includes an upper mold assembly and a lower mold assembly that cooperates with the upper mold assembly for stamping; the upper mold assembly includes an upper mold body with a first arc-shaped stamping surface, and the lower mold assembly includes a lower mold body with a second arc-shaped stamping surface that cooperates with the first arc-shaped stamping surface, so that the arc-shaped stamping mold of this application can adapt to a specific arc shape and has stable positioning; in addition, the lower mold assembly also includes a lower moving plate, a lower base plate and a working mold core; the lower mold body is fixedly connected to the lower moving plate, and the lower mold body is provided with a first mounting groove; the lower moving plate and the lower... The base plate is fixedly connected, and the lower moving plate has a positioning groove. One end of the working mold core is installed in the first mounting groove and forms the first stamping surface. The first stamping surface is offset from the second arc-shaped stamping surface so as to stamp out the concave and convex structure of the aluminum-plastic film. The working mold core passes through the positioning groove and abuts against the lower base plate. The working mold core is installed on the lower base plate, so that the curvature can be finely adjusted through the working mold core. At the same time, it can be disassembled and assembled by disassembling and assembling the lower base plate without disassembling and assembling the lower moving plate. This not only facilitates the adjustment and replacement of the working mold core, but also avoids the complex positioning and inaccurate positioning of the working mold core during disassembly and assembly due to the disassembly and rotation of the lower moving plate. Attached Figure Description

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

[0017] Figure 1 This is a perspective view of the arc-shaped punching die according to an embodiment of this application.

[0018] Figure 2 for Figure 1 The side view of the arc-shaped punching die shown.

[0019] Figure 3 for Figure 2 The cross-sectional view of the arc-shaped punch die along line AA is shown.

[0020] Figure 4 for Figure 2 The cross-sectional view of the eye BB line of the arc-shaped punching die shown. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] First, in the description of the embodiments of this application, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.

[0025] Secondly, the terms "first," "second," and "third" are used only to distinguish descriptions and have no order or distinction of importance. They should not be interpreted as indicating or implying relative importance. Features marked "first" or "second" may explicitly or implicitly include one or more of the same feature.

[0026] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted; the term "along a certain direction" does not imply that it must be absolutely parallel to that direction, but can be offset, that is, it can have a component in that direction.

[0027] Furthermore, it should be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, an electromagnetic connection, or even a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] Furthermore, in this application, "and / or," such as "feature 1 and / or feature 2," refers to three possibilities: feature 1 alone, feature 2 alone, or feature 1 plus feature 2.

[0029] Please see Figure 1-4 The arc-shaped stamping die 100 of this application embodiment includes an upper die assembly 10 and a lower die assembly 20 that cooperates with the upper die assembly 10 for stamping. The upper die assembly 10 includes an upper die body 11, which has a first arc-shaped stamping surface 11a. The lower die assembly 20 includes a lower die body 21, which has a second arc-shaped stamping surface 21a that cooperates with the first arc-shaped stamping surface 11a, so that the arc-shaped stamping die 100 can adapt to a specific arc shape and be stably positioned. More specifically, as follows: like Figure 1-4 As shown, in some embodiments, the lower mold assembly 20 further includes a lower moving plate 22, a lower base plate 23, and a working mold core 24; the lower mold body 21 is mounted on the lower moving plate 22, and the lower mold body 21 is provided with a first mounting groove 21b; the lower moving plate 22 is mounted on the lower base plate 23, and the lower moving plate 22 is provided with a positioning groove 22a; one end of the working mold core 24 is mounted in the first mounting groove 21b and forms a first stamping surface 24a, the first stamping surface 24a is offset from the second arc-shaped stamping surface 21a so as to stamp out a concave-convex structure on the aluminum-plastic film, the working mold core 24 passes through the positioning groove 22a and abuts against the lower base plate 23, and the working mold core 24 is detachably mounted on the lower base plate 23 so as to realize the quick assembly and disassembly and positioning of the working mold core 24.

[0030] like Figure 1-4As shown, in some embodiments, the working mold core 24 includes a raised mold core 241 and a recessed mold core 242. The raised mold core 241 has a first stamping surface 24a at one end away from the lower base plate 23, and protrudes from the first mounting groove 21b, so that the first stamping surface 24a of the raised mold core 241 is closer to the first arc-shaped stamping surface 11a relative to the second arc-shaped stamping surface 21a, thereby punching out grooves / protrusions on the stamped aluminum-plastic film. The recessed mold core 242 has a first stamping surface 24a at one end away from the lower base plate 23, and is accommodated in the first mounting groove 21b, so that the first stamping surface 24a of the recessed mold core 242 is further away from the first arc-shaped stamping surface 11a relative to the second arc-shaped stamping surface 21a, in order to avoid and position the protrusions punched out of the aluminum-plastic film.

[0031] like Figure 1-4 As shown, in some embodiments, the upper mold body 11 is provided with a relief groove 11b corresponding to the protruding mold core 241, so as to allow the protrusion punched out by the aluminum-plastic film by the protruding mold core 241.

[0032] like Figure 1-4 As shown, in some embodiments, a positioning pin 30 is provided between the upper mold body 11 and the lower mold body 21 to ensure the relative displacement direction of the upper mold body 11 and the lower mold body 21 during the stamping process.

[0033] like Figure 1-4 As shown, in some embodiments, the upper mold assembly 10 further includes an auxiliary mold core 12 that cooperates with the recessed mold core 242. The upper mold body 11 has a second mounting groove 11c, and the auxiliary mold core 12 is disposed in the second mounting groove 11c. The auxiliary mold core 12 has a second stamping surface 12a at one end near the lower mold body 21 and protrudes from the second mounting groove 11c, so that the second stamping surface 12a is closer to the second arc-shaped stamping surface 21a than the first arc-shaped stamping surface 11a, thereby punching out grooves / protrusions on the stamped aluminum-plastic film.

[0034] like Figure 1-4 As shown, in some embodiments, the upper mold assembly 10 further includes a fixing plate 13, which is detachably mounted on the upper mold body 11. The auxiliary mold core 12 is adjustablely mounted on the fixing plate 13 so that the position of the auxiliary mold core 12 relative to the upper mold body 11 can be adjusted by adjusting the installation relationship / position between the auxiliary mold core 12 and the fixing plate 13.

[0035] like Figure 1-4As shown, in some embodiments, the upper mold body 11 has a third mounting groove 11d that communicates with the second mounting groove 11c. The fixing plate 13 is embedded in the third mounting groove 11d to provide positioning and installation space for the fixing plate 13 and to avoid the adverse effects of the fixing plate 13 on the upper mold body 11, so that the side of the upper mold body 11 away from the lower mold body 21 can be better installed / positioned with the outside.

[0036] like Figure 1-4 As shown, in some embodiments, the upper mold assembly 10 further includes an elastic element 14 located in the second mounting groove 11c. The elastic element 14 is disposed between the fixed plate 13 and the auxiliary mold core 12. The elastic element 14 always has the tendency to drive the auxiliary mold core 12 to move toward the recessed mold core 242, so that the auxiliary mold core 12 can stamp the aluminum-plastic film under the action of the elastic element 14.

[0037] like Figure 1-4 As shown, in some embodiments, the auxiliary mold core 12 has a first limiting portion 12b in the direction away from the recessed mold core 242, and a second limiting portion 11e is provided in the second mounting groove 11c. The cooperation between the first limiting portion 12b and the second limiting portion 11e is used to prevent the auxiliary mold core 12 from moving toward the recessed mold core 242.

[0038] like Figure 1-4 As shown, in some embodiments, the upper mold assembly 10 further includes a limiting member 15, one end of which is fixedly connected to the auxiliary mold core 12, and the other end of which is movably disposed on the fixing plate 13 to restrict the auxiliary mold core 12 from moving toward the recessed mold core 242.

[0039] like Figure 1-4 As shown, in some embodiments, the limiting member 15 includes a first limiting member 151 and two second limiting members 152. The elastic member 14 is fitted onto the second limiting member 152. There are two elastic members 14, one elastic member 14 is fitted onto one second limiting member 152. The second limiting member 152 is located between the two first limiting members 151, so that the elastic force on the auxiliary mold core 12 is more balanced and the limiting is more reliable and stable.

[0040] Compared with the prior art, the arc-shaped stamping mold 100 of this application includes an upper mold assembly 10 and a lower mold assembly 20 that cooperates with the upper mold assembly 10 for stamping; the upper mold assembly 10 includes an upper mold body 11, which has a first arc-shaped stamping surface 11a; the lower mold assembly 20 includes a lower mold body 21, which has a second arc-shaped stamping surface 21a that cooperates with the first arc-shaped stamping surface 11a. This allows the arc-shaped stamping mold 100 of the application embodiment to adapt to a specific arc shape and to be positioned stably. In addition, the lower mold assembly 20 also includes a lower moving plate 22, a lower base plate 23, and a working mold core 24; the lower mold body 21 is mounted on the lower moving plate 22, and the lower mold body 21 is provided with a first mounting groove 21b; the lower moving plate 22... 2. The lower base plate 23 is installed, and the lower moving plate 22 has a positioning groove 22a. One end of the working mold core 24 is installed in the first mounting groove 21b and forms a first stamping surface 24a. The first stamping surface 24a is offset from the second arc-shaped stamping surface 21a so as to stamp out the concave and convex structure of the aluminum-plastic film. The working mold core 24 passes through the positioning groove 22a and abuts against the lower base plate 23. The working mold core 24 is fixedly connected to the lower base plate 23, so that the curvature can be finely adjusted through the working mold core 24. At the same time, the working mold core 24 can be disassembled and assembled by disassembling and assembling the lower base plate 23 without disassembling and assembling the lower moving plate 22. This not only facilitates the adjustment and replacement of the working mold core 24, but also avoids the complex positioning and inaccurate positioning of the working mold core 24 during disassembly and assembly due to the disassembly and rotation of the lower moving plate 22.

[0041] The above-disclosed examples are merely preferred embodiments of this application, intended to facilitate understanding and implementation by those skilled in the art. However, they cannot be used to limit the scope of this application. Therefore, equivalent variations made within the scope of this application are still within the scope of this application.

Claims

1. An arc-shaped stamping die, suitable for stamping aluminum-plastic film, characterized in that, The device includes an upper mold assembly and a lower mold assembly that cooperates with the upper mold assembly for stamping. The upper mold assembly includes an upper mold body with a first arc-shaped stamping surface. The lower mold assembly includes a lower mold body, a lower moving plate, a lower base plate, and a working mold core. The lower mold body has a second arc-shaped stamping surface that cooperates with the first arc-shaped stamping surface. The lower mold body is mounted on the lower moving plate and has a first mounting groove. The lower moving plate is mounted on the lower base plate and has a positioning groove. One end of the working mold core is mounted in the first mounting groove and forms a first stamping surface. The first stamping surface is offset from the second arc-shaped stamping surface to stamp a concave-convex structure onto the aluminum-plastic film. The working mold core passes through the positioning groove and abuts against the lower base plate. The working mold core is mounted on the lower base plate.

2. The arc-shaped punching die as described in claim 1, characterized in that, The working die core includes a raised die core and a recessed die core. The raised die core has the first stamping surface at one end away from the lower base plate and protrudes out of the first mounting groove. The recessed die core has the first stamping surface at one end away from the lower base plate and is accommodated in the first mounting groove.

3. The arc-shaped punching die as described in claim 2, characterized in that, The upper mold body is provided with a clearance groove corresponding to the protruding mold core; and / or A positioning pin is provided between the upper mold body and the lower mold body.

4. The arc-shaped punching die as described in claim 2, characterized in that, The upper mold assembly also includes an auxiliary mold core that cooperates with the recessed mold core. The upper mold body has a second mounting groove, and the auxiliary mold core is disposed in the second mounting groove. The end of the auxiliary mold core near the lower mold body has a second stamping surface and protrudes out of the second mounting groove.

5. The arc-shaped punching die as described in claim 4, characterized in that, The upper mold assembly also includes a fixing plate, which is mounted on the upper mold body, and the auxiliary mold core is adjustablely mounted on the fixing plate.

6. The arc-shaped punching die as described in claim 5, characterized in that, The upper mold body has a third mounting groove that communicates with the second mounting groove, and the fixing plate is embedded in the third mounting groove.

7. The arc-shaped punching die as described in claim 5, characterized in that, The upper mold assembly also includes an elastic element located in the second mounting groove. The elastic element is disposed between the fixed plate and the auxiliary mold core, and the elastic element always has a tendency to drive the auxiliary mold core to move toward the recessed mold core.

8. The arc-shaped punching die as described in claim 4 or 7, characterized in that, The auxiliary mold core has a first limiting part in the direction away from the recessed mold core, and the second mounting groove has a second limiting part. The cooperation between the first limiting part and the second limiting part is used to prevent the auxiliary mold core from moving towards the recessed mold core.

9. The arc-shaped punching die as described in claim 7, characterized in that, The upper mold assembly also includes a limiting member, one end of which is fixedly connected to the auxiliary mold core, and the other end of which is movably disposed on the fixing plate to restrict the auxiliary mold core from moving toward the recessed mold core.

10. The arc-shaped punching die as described in claim 9, characterized in that, The limiting member includes a first limiting member and two second limiting members. The elastic member is fitted onto the second limiting member. There are two elastic members, one of which is fitted onto one second limiting member. The second limiting member is located between the two first limiting members.

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