Disc battery embossing jig

Abstract

The utility model belongs to the technical field of battery manufacturing, and discloses a disc battery embossing jig which comprises an upper die, a lower die and a limiting block, the upper die comprises a first mounting seat, a first boss, a first embossing part and a first tab groove, the first boss is arranged on the first mounting seat, the first embossing part is arranged on the first boss, and the first tab groove is arranged on the first boss; the lower die comprises a second mounting seat, a second boss, a second embossing part and a second tab groove, the second boss is arranged on the second mounting seat, the second embossing part is arranged on the second boss, the second tab groove is formed in the second boss, and the first embossing part and the second embossing part are matched with each other; and the two limiting blocks are arranged on the first mounting base and the second mounting base correspondingly. In this way, the tabs are located in the first tab groove and the second tab groove during embossing, the tabs can be prevented from being overpressed and fractured, the limiting block can limit further closing of the upper die and the lower die, and the aluminum plastic film is prevented from being overpressed.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a disc battery embossing jig. Background Art

[0002] Disc battery is a common battery. It is small in size, easy to carry and use, and is widely used in life.

[0003] Disc batteries consist of a battery cell and an aluminum-plastic film covering the outside of the cell. The aluminum-plastic film can effectively prevent oxygen, moisture and other harmful gases in the air from entering the battery, and has good sealing properties to prevent electrolyte leakage inside the battery. In order to make the disc battery look smooth and beautiful, the aluminum-plastic film usually needs to be embossed and folded.

[0004] During the embossing process of disc batteries in the embossing jig, the closing force of the upper and lower dies of the embossing jig is difficult to control, which may cause the aluminum-plastic film on the disc battery to be over-pressurized and the disc battery to lose its sealing, causing defects such as corrosion and bloating. It may also cause the tabs to be over-pressurized and cause the tabs to break, reducing the safety performance and yield of the disc battery. Utility Model Content

[0005] The utility model aims to provide a disc battery embossing jig to solve the problem of easy overpressure when the embossing jig is used to stamp a disc battery equipped with an aluminum-plastic film.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] 18. The embossing jig of claim 17, wherein the first tab is located at the end of the first tab and the second tab is located at the end of the first tab. The embossing jig comprises a first mounting seat, a first boss, a first embossing portion, and a first tab groove, wherein the first boss is arranged on the first mounting seat, the first embossing portion is arranged at an end of the first boss away from the first mounting seat, and the first tab groove is arranged at the first boss; a lower die comprises a second mounting seat, a second boss, a second embossing portion, and a second tab groove, the second boss is arranged on the second mounting seat, the second embossing portion is arranged at an end of the second boss away from the second mounting seat, the second tab groove is arranged at the second boss, the first embossing portion and the second embossing portion fit together and are used for embossing the disc battery; a limit block, wherein the limit block is provided in two groups, and the two groups of limit blocks are respectively arranged on a side where the first mounting seat and the second mounting seat are close to each other, and when the upper die and the lower die are closed, the limit block provided on the first mounting seat abuts against the limit block provided on the second mounting seat.

[0008] Preferably, there are two first tab slots, which are respectively arranged between adjacent first embossed portions; and / or there are two second tab slots, which are respectively arranged between adjacent second embossed portions.

[0009] Preferably, a group of the limit blocks is provided with two, the two limit blocks connected to the first mounting seat are symmetrically arranged on both sides of the first boss, and the two limit blocks connected to the second mounting seat are symmetrically arranged on both sides of the second boss.

[0010] Preferably, the limiting block is integrally formed with the first mounting seat or the second mounting seat to which it is connected.

[0011] Preferably, the length of the limiting block connected to the first mounting seat is smaller than the diameter of the first boss; and / or the length of the limiting block connected to the second mounting seat is smaller than the diameter of the second boss.

[0012] Preferably, one of the first embossed portion and the second embossed portion is a conical protrusion, and the other is a conical groove matching the conical protrusion.

[0013] Preferably, the height difference between the limit block provided on the first mounting seat and the first boss is 0.195 mm, or the height difference between the limit block provided on the second mounting seat and the second boss is 0.195 mm.

[0014] Preferably, a first positioning groove is provided on the first boss, and the first positioning groove is coaxially arranged with the first boss; and / or a second positioning groove is provided on the second boss, and the second positioning groove is coaxially arranged with the second boss.

[0015] Preferably, the limiting block is a rectangular parallelepiped structure.

[0016] Preferably, the disc battery embossing jig further includes a base and a driving member, the lower mold is arranged on the base, and the driving member is connected to the upper mold for driving the upper mold to move in a direction close to or away from the lower mold.

[0017] Beneficial effects of the utility model:

[0018] A disc battery embossing jig comprises an upper die, a lower die and a limit block, the upper die comprises a first mounting seat, a first boss, a first embossing portion and a first pole lug groove, the first boss is arranged on the first mounting seat, the first embossing portion is arranged at the end of the first boss away from the first mounting seat, and the first pole lug groove is arranged on the first boss; the lower die comprises a second mounting seat, a second boss, a second embossing portion and a second pole lug groove, the second boss is arranged on the second mounting seat, the second embossing portion is arranged at the end of the second boss away from the second mounting seat, the second pole lug groove is arranged on the second boss, the first embossing portion and the second embossing portion fit together and are used for embossing the disc battery; two groups of limit blocks are provided, and the two groups of limit blocks are respectively arranged on the side where the first mounting seat and the second mounting seat are close to each other. When the upper die and the lower die are closed, the limit block arranged on the first mounting seat abuts against the limit block arranged on the second mounting seat.

[0019] In this way, during the embossing process, the tabs are located in the first tab groove and the second tab groove, which can prevent the tabs from being over-pressurized and broken. The first embossing portion and the second embossing portion can emboss the aluminum-plastic film, making the edge of the disc battery smoother after folding; the limit block can limit the further closing of the upper mold and the lower mold, thereby causing the aluminum-plastic film to be over-pressurized and affecting the sealing performance of the disc battery, reducing the adverse defects caused by the damage to the sealing performance of the disc battery, and improving the yield and safety performance of the disc battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of an upper mold in one embodiment of the present utility model;

[0021] Figure 2 This is a structural diagram of the lower mold in one embodiment of the utility model;

[0022] Figure 3 It is a side view of the upper mold in one embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Upper die; 11. First mounting seat; 12. First boss; 13. First embossing portion; 14. First positioning groove; 15. First tab slot; 2. Lower die; 21. Second mounting seat; 22. Second boss; 23. Second embossing portion; 24. Second positioning groove; 25. Second tab slot; 3. Limit block. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0026] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0029] See Figure 1 and Figure 2The utility model provides a disc battery embossing jig, including an upper die 1, a lower die 2 and a limit block 3. The upper die 1 includes a first mounting seat 11, a first boss 12, a first embossing portion 13 and a first tab groove 15. The first boss 12 is arranged on the first mounting seat 11, the first embossing portion 13 is arranged at the end of the first boss 12 away from the first mounting seat 11, and the first tab groove 15 is arranged on the first boss 12; the lower die 2 includes a second mounting seat 21, a second boss 22, a second embossing portion 23 and a second tab groove 25, and the second boss 22 is arranged On the second mounting seat 21, the second embossing portion 23 is provided at the end of the second boss 22 away from the second mounting seat 21, the second tab groove 25 is provided on the second boss 22, the first embossing portion 13 and the second embossing portion 23 fit together and are used to emboss the disc battery; there are two groups of limit blocks 3, and the two groups of limit blocks 3 are respectively provided on the side where the first mounting seat 11 and the second mounting seat 21 are close to each other. When the upper mold 1 and the lower mold 2 are closed, the limit blocks 3 provided on the first mounting seat 11 abut against the limit blocks 3 provided on the second mounting seat 21. In this embodiment, the first mounting seat 11 and the second mounting seat 21 have the same shape, both of which are cubic structures; the first boss 12 and the second boss 22 have the same shape, both of which are hollow cylindrical structures; there are seven first embossing portions 13 and seven second embossing portions 23.

[0030] It should be noted that the disc battery is placed between the upper mold 1 and the lower mold 2, and the first embossing portion 13 and the second embossing portion 23 are respectively abutted against the positions where the aluminum-plastic film needs to be embossed, and the tabs of the disc battery are located in the first tab groove 15 and the second tab groove 25, so that the upper mold 1 and the lower mold 2 are closed in a direction approaching each other, so that the aluminum-plastic film can be embossed, which facilitates the subsequent folding work.

[0031] In this way, by providing the first tab groove 15 and the second tab groove 25, it is possible to prevent the tab from being subjected to excessive pressure and causing the tab to break when the upper mold 1 and the lower mold 2 are closed. The first embossing portion 13 and the second embossing portion 23 can emboss the aluminum-plastic film on the disc battery, so that the edge of the disc battery after folding is smoother; when the upper mold 1 and the lower mold 2 are closed, the limit block 3 can limit the upper mold 1 and the lower mold 2 from further closing, thereby causing the aluminum-plastic film to be over-pressurized and affecting the sealing performance of the disc battery, reducing corrosion, flatulence and other defects caused by the damage to the sealing performance of the disc battery, and improving the safety performance and yield of the disc battery; by providing two groups of limit blocks 3 on the first mounting seat 11 and the second mounting seat 21 respectively, the limit blocks 3 are abutted when the upper mold 1 and the lower mold 2 are closed, which can prevent the limit blocks 3 from causing pressure damage to the first mounting seat 11 or the second mounting seat 21, thereby extending the service life of the upper mold 1 and the lower mold 2.

[0032] It can be understood that the number of the first embossed parts 13 and the number of the second embossed parts 23 can be flexibly adjusted according to actual design needs, so as to achieve embossing of the aluminum-plastic film while protecting the tabs of the disc battery; and a group of limit blocks 3 is not limited to two, but can also be four, six, eight, etc. The number of limit blocks 3 can be flexibly adjusted according to actual needs, and no further examples are given here.

[0033] See Figure 1 and Figure 2 In some embodiments, there are two first tab grooves 15 , which are respectively arranged between adjacent first embossed portions 13 ; there are two second tab grooves 25 , which are respectively arranged between adjacent second embossed portions 23 .

[0034] In this way, when the first embossing portion 13 and the second embossing portion 23 emboss the aluminum-plastic film, the tabs are located in the first tab groove 15 and the second tab groove 25 , which can provide protection for the tabs.

[0035] It is understandable that the locations of the first tab slot 15 and the second tab slot 25 can be adjusted according to the actual design requirements of the battery, which will not be described in detail here.

[0036] See Figure 1 and Figure 2 In some embodiments, a set of limit blocks 3 is provided with two, the two limit blocks 3 connected to the first mounting seat 11 are symmetrically arranged on both sides of the first boss 12, and the two limit blocks 3 connected to the second mounting seat 21 are symmetrically arranged on both sides of the second boss 22.

[0037] Furthermore, in some embodiments, the limiting block 3 is a rectangular parallelepiped structure, wherein the side wall of the limiting block 3 facing away from the first boss 12 is flush with the first mounting seat 11 .

[0038] In this way, the limit block 3 of the rectangular structure can have a larger contact area, so that when the upper mold 1 and the lower mold 2 are closed, the limit block 3 set on the first mounting seat 11 can stably abut the limit block 3 set on the second mounting seat 21, thereby avoiding overpressure on the aluminum-plastic film and the tabs on the disc battery during the embossing process, and improving the safety performance and yield of the disc battery.

[0039] It is understandable that the limit block 3 can also be a cylindrical structure, a conical structure, a truncated cone structure, etc., and is not limited to a rectangular parallelepiped structure, and no more examples are given here.

[0040] See Figure 1 and Figure 2 In some embodiments, the limiting block 3 is integrally formed with the first mounting seat 11 or the second mounting seat 21 to which it is connected.

[0041] In this way, the structural strength of the connection between the limit block 3 and the first mounting seat 11 or the second mounting seat 21 can be improved, so that when the upper mold 1 and the lower mold 2 are closed, the limit block 3 can stably abut and avoid overpressure on the aluminum-plastic film and the tab on the disc battery, thereby improving the yield of the disc battery.

[0042] It can be understood that the limit block 3 can also be detachably connected to the first mounting seat 11 or the second mounting seat 21 by means of a block slot or a bolt, so as to achieve the effect of adjusting the size of the limit block 3 according to the specifications of the disc battery; the connection method between the limit block 3 and the first mounting seat 11 or the second mounting seat 21 corresponding to it can be flexibly adjusted according to actual needs.

[0043] See Figure 1 and Figure 2 In some embodiments, the length of the limit block 3 connected to the first mounting seat 11 is smaller than the diameter of the first boss 12 , and the length of the limit block 3 connected to the second mounting seat 21 is smaller than the diameter of the second boss 22 .

[0044] In this way, it is convenient for workers to assemble or remove the disc battery, and interference between the limiting block 3 and the first boss 12 and the second boss 22 during the embossing process is avoided, thereby improving the embossing effect.

[0045] It is understandable that the size of the limiting block 3 can be flexibly adjusted according to actual needs, which will not be elaborated here.

[0046] See Figure 1 and Figure 2 In some embodiments, one of the first embossed portion 13 and the second embossed portion 23 is a conical protrusion, and the other is a conical groove that matches the conical protrusion. In this embodiment, the first embossed portion 13 is a conical protrusion, and the second embossed portion 23 is a conical groove. When the upper mold 1 and the lower mold 2 are closed, the first embossed portion 13 and the second embossed portion 23 can extrude a corresponding pattern into the aluminum-plastic film.

[0047] In this way, the first embossing portion 13 and the second embossing portion 23 can emboss the embossing position of the aluminum-plastic film, and the tab can be located in the first tab groove 15 or the second tab groove 25, thereby avoiding overpressure of the aluminum-plastic film during the embossing process, which causes the disc battery to lose its sealing, and avoiding overpressure on the tab to cause it to break, thereby improving the yield of the disc battery.

[0048] It is understandable that the shape of the first embossed portion 13 and the shape of the second embossed portion 23 are not limited to a cone, and can be adjusted to other shapes as long as they can achieve embossing of the aluminum-plastic film.

[0049] See Figure 2 and Figure 3In some embodiments, the height difference H between the limit block 3 provided on the first mounting seat 11 and the first boss 12 is 0.195 mm, or the height difference H between the limit block 3 provided on the second mounting seat 21 and the second boss 22 is 0.195 mm.

[0050] In this way, when the limit block 3 set on the first mounting seat 11 and the limit block 3 set on the second mounting seat 21 abut against each other, the embossing effect of the aluminum-plastic film can be maintained, and the overpressure of the aluminum-plastic film and the tab of the disc battery can be avoided, thereby improving the yield of the disc battery.

[0051] It is understandable that the height difference between the limiting block 3 and the first mounting seat 11 or the second mounting seat 21 can be flexibly adjusted according to actual needs, which will not be elaborated here.

[0052] See Figure 1 and Figure 2 In some embodiments, a first positioning groove 14 is defined on the first boss 12 and is coaxially disposed with the first boss 12. A second positioning groove 24 is defined on the second boss 22 and is coaxially disposed with the second boss 22. In this embodiment, the depth of the first positioning groove 14 is the same as the depth of the second positioning groove 24.

[0053] In this way, after the disc battery is assembled to the second mounting seat 21, the two ends of the disc battery are respectively stuck in the first positioning groove 14 and the second positioning groove 24, which can improve the stability of the disc battery and prevent the disc battery from shifting during the embossing process and affecting the embossing effect.

[0054] It is understandable that only one of the first positioning groove 14 and the second positioning groove 24 may be provided. In this embodiment, by providing the first positioning groove 14 and the second positioning groove 24, both ends of the disc battery can be limited, thereby improving the stability during embossing.

[0055] See Figure 1 and Figure 2 In some embodiments, the disc battery embossing jig further includes a base (not shown in the figure) and a driving member (not shown in the figure), the lower mold 2 is arranged on the base, and the driving member is connected to the upper mold 1 for driving the upper mold 1 to move in a direction close to or away from the lower mold 2.

[0056] It is understandable that the driving member can be a linear driving mechanism such as a cylinder, a linear motor, etc., which can move the upper mold 1 in the vertical direction. No more examples are given here.

[0057] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A disc battery embossing jig, characterized in that: include: An upper mold (1), the upper mold (1) comprising a first mounting seat (11), a first boss (12), a first embossed portion (13) and a first tab groove (15), wherein the first boss (12) is arranged on the first mounting seat (11), the first embossed portion (13) is arranged at an end of the first boss (12) away from the first mounting seat (11), and the first tab groove (15) is arranged on the first boss (12); A lower die (2), the lower die (2) comprising a second mounting seat (21), a second boss (22), a second embossing portion (23) and a second tab groove (25), wherein the second boss (22) is arranged on the second mounting seat (21), the second embossing portion (23) is arranged at an end of the second boss (22) away from the second mounting seat (21), the second tab groove (25) is arranged on the second boss (22), and the first embossing portion (13) and the second embossing portion (23) are fitted with each other and are used for embossing a disc battery; A limit block (3), wherein two groups of the limit blocks (3) are provided, and the two groups of the limit blocks (3) are respectively provided on a side where the first mounting seat (11) and the second mounting seat (21) are close to each other; when the upper mold (1) and the lower mold (2) are closed, the limit block (3) provided on the first mounting seat (11) abuts against the limit block (3) provided on the second mounting seat (21).

2. The disc battery embossing jig according to claim 1, characterized in that: There are two first pole tab grooves (15), and the two first pole tab grooves (15) are respectively arranged between adjacent first embossed portions (13); and / or there are two second pole tab grooves (25), and the two second pole tab grooves (25) are respectively arranged between adjacent second embossed portions (23).

3. The disc battery embossing jig according to claim 1, characterized in that: A set of two limit blocks (3) is provided. The two limit blocks (3) connected to the first mounting seat (11) are symmetrically arranged on both sides of the first boss (12), and the two limit blocks (3) connected to the second mounting seat (21) are symmetrically arranged on both sides of the second boss (22).

4. The disc battery embossing jig according to claim 1, characterized in that: The limiting block (3) and the first mounting seat (11) or the second mounting seat (21) connected thereto are integrally formed.

5. The disc battery embossing jig according to claim 1, characterized in that: The length of the limiting block (3) connected to the first mounting seat (11) is smaller than the diameter of the first boss (12); and / or the length of the limiting block (3) connected to the second mounting seat (21) is smaller than the diameter of the second boss (22).

6. The disc battery embossing jig according to claim 1, characterized in that: One of the first embossed portion (13) and the second embossed portion (23) is a conical protrusion, and the other is a conical groove matching the conical protrusion.

7. The disc battery embossing jig according to any one of claims 1 to 6, characterized in that: The height difference between the limit block (3) provided on the first mounting seat (11) and the first boss (12) is 0.195 mm, or the height difference between the limit block (3) provided on the second mounting seat (21) and the second boss (22) is 0.195 mm.

8. The disc battery embossing jig according to any one of claims 1 to 6, characterized in that: A first positioning groove (14) is provided on the first boss (12), and the first positioning groove (14) is coaxially arranged with the first boss (12); and / or a second positioning groove (24) is provided on the second boss (22), and the second positioning groove (24) is coaxially arranged with the second boss (22).

9. The disc battery embossing jig according to any one of claims 1 to 6, characterized in that: The limiting block (3) is a rectangular parallelepiped structure.

10. The disc battery embossing jig according to any one of claims 1 to 6, characterized in that: The disc battery embossing jig further comprises a base and a driving member, wherein the lower die (2) is arranged on the base, and the driving member is connected to the upper die (1) and is used to drive the upper die (1) to move in a direction approaching or away from the lower die (2).

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