L-shaped lithium battery shell punching die

Abstract

The utility model discloses an L-shaped lithium battery shell punching die which comprises an upper die cavity, a lower die cavity and a die core set which are sequentially arranged from top to bottom, the upper die cavity and the lower die cavity are each provided with nine identical L-shaped die cavities at intervals, the die core set comprises a base, and nine identical L-shaped die cores are arranged on the top face of the base at intervals. The L-shaped mold cavities of the upper mold cavity and the L-shaped mold cavities of the lower mold cavity are arranged in a one-to-one correspondence mode, and the L-shaped mold cavities of the lower mold cavity and the L-shaped mold cores are arranged in a one-to-one correspondence mode. Compared with an existing L-shaped lithium battery shell punching die, the L-shaped lithium battery shell punching die can obtain nine aluminum-plastic film shells through one shell punching procedure within the same time, and the production efficiency of an L-shaped lithium battery aluminum-plastic film forming procedure is greatly improved; and moreover, the slitting blade is arranged, so that the formed film can be conveniently slit to obtain a single aluminum-plastic film shell.

Description

Technical Field

[0001] The utility model relates to the technical field of shell punching dies, in particular to an L-shaped lithium battery shell punching die. Background Art

[0002] Lithium-ion batteries (lithium batteries) are widely used in portable products due to their high energy, high voltage, environmental protection and long life. Among them, L-type laminated polymer lithium battery (referred to as L-type lithium battery) is a common type of lithium battery. L-type lithium battery refers to a battery with an appearance in the shape of the English letter "L". It is generally manufactured through the process of positive and negative electrode lamination. L-type lithium battery can be used in digital electronic products such as mobile phones, tablets, remote controls, electronic scales, memory cards, electric toys, etc.

[0003] Among them, the L-type lithium battery cell is provided with an aluminum-plastic film shell outside, and the aluminum-plastic film is usually punched and formed using a shell punching mold to obtain the above-mentioned aluminum-plastic film shell. However, the existing L-type lithium battery shell punching mold is usually only provided with two L-shaped mold cavities arranged up and down and an L-shaped mold core, resulting in the existing L-type lithium battery shell punching mold can only obtain one aluminum-plastic film shell after one shell punching process, that is, the production efficiency of the existing L-type lithium battery aluminum-plastic film forming process is low. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an L-shaped lithium battery shell punching die, which can solve the above technical problems.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: an L-shaped lithium battery shell punching mold, comprising: an upper mold cavity, a lower mold cavity and a mold core group arranged in sequence from top to bottom, both the upper mold cavity and the lower mold cavity are provided with 9 identical L-shaped mold cavities at intervals, the mold core group includes a base, and 9 identical L-shaped mold cores are arranged at intervals on the top surface of the base, each L-shaped mold cavity of the upper mold cavity is arranged in a one-to-one correspondence with each L-shaped mold cavity of the lower mold cavity, and each L-shaped mold cavity of the lower mold cavity is arranged in a one-to-one correspondence with each L-shaped mold core.

[0008] Preferably, both the upper mold cavity and the lower mold cavity are spaced apart with 9 identical square mold cavities, and each square mold cavity is respectively arranged close to each L-shaped mold cavity; the top surface of the base is spaced apart with 9 identical square mold cores, and each square mold core is respectively arranged close to each L-shaped mold core.

[0009] Preferably, the 9 L-shaped mold cavities of the upper mold cavity are evenly distributed, the 9 L-shaped mold cavities of the lower mold cavity are evenly distributed, and the 9 L-shaped mold cores of the mold core group are evenly distributed.

[0010] Preferably, the L-shaped lithium battery shell punching die further includes a slitting blade, and the slitting blade is accommodated in the lower die cavity.

[0011] Preferably, a blade holder is provided on one side of the lower mold cavity, and the slitting blade is accommodated in the blade holder.

[0012] Preferably, the number of both the slitting blades and the blade receiving member is two.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an L-shaped lithium battery shell punching mold, which has the following beneficial effects: the upper mold cavity and the lower mold cavity of the utility model are both provided with 9 identical L-shaped mold cavities at intervals, and the mold core group is provided with 9 identical L-shaped mold cores. Compared with the existing L-shaped lithium battery shell punching mold, the L-shaped lithium battery shell punching mold of the utility model can obtain 9 aluminum-plastic film shells through one shell punching process in the same time, thereby greatly improving the production efficiency of the L-shaped lithium battery aluminum-plastic film forming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of an L-shaped lithium battery shell punching die of the utility model;

[0016] Figure 2 This is a front view of an L-shaped lithium battery shell punching die of the utility model;

[0017] Figure 3 This is a side view of an L-shaped lithium battery shell punching die of the utility model;

[0018] Figure 4 A three-dimensional diagram of the upper mold cavity of the utility model;

[0019] Figure 5 It is a three-dimensional diagram of the lower mold cavity of the utility model;

[0020] Figure 6 It is a three-dimensional diagram of the core assembly of the utility model.

[0021] The numbers in the figure are: 1 upper mold cavity, 2 lower mold cavity, 3 mold core group, 31 base, 32 L-type mold core, 33 square mold core, 41 L-type mold cavity, 42 square mold cavity, 51 slitting blade, 52 blade receiving part. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides an L-shaped lithium battery shell punching die, comprising: an upper die cavity 1, a lower die cavity 2 and a die core group 3 arranged in sequence from top to bottom. Both the upper die cavity 1 and the lower die cavity 2 are provided with 9 identical L-shaped die cavities 41 at intervals, the die core group 3 comprises a base 31, and the top surface of the base 31 is provided with 9 identical L-shaped die cores 32 at intervals, each L-shaped die cavity 41 of the upper die cavity 1 is provided with each L-shaped die cavity 41 of the lower die cavity 2 in a one-to-one correspondence, and each L-shaped die cavity 41 of the lower die cavity 2 is provided with each L-shaped die core 32 in a one-to-one correspondence, and it can be understood that the L-shaped die cavity 41 of the upper die cavity 1, the L-shaped die cavity 41 of the lower die cavity 2 and the L-shaped die core 32 are all in the same shape, and the L-shaped die cavity 41 is a pit die cavity or pit position in an L-shaped shape.

[0024] Preferably, the nine L-shaped mold cavities 41 of the upper mold cavity 1 are evenly distributed, the nine L-shaped mold cavities 41 of the lower mold cavity 2 are evenly distributed, and the nine L-shaped mold cores 32 of the mold core group 3 are evenly distributed.

[0025] In addition, preferably, both the upper mold cavity 1 and the lower mold cavity 2 are provided with 9 identical square mold cavities 42 at intervals, and each square mold cavity 42 is respectively arranged close to each L-shaped mold cavity 41; the top surface of the base 31 is provided with 9 identical square mold cores 33 at intervals, and each square mold core 33 is respectively arranged close to each L-shaped mold core 32; through the above method, the utility model can obtain not only 9 L-shaped aluminum-plastic film shells but also 9 square aluminum-plastic film shells through the shell punching process, thereby better meeting the production and manufacturing needs of lithium batteries.

[0026] The L-shaped lithium battery shell punching mold of the utility model may also include a slitting blade 51, which is accommodated in the lower mold cavity 2; further, a blade receiving piece 52 is provided on one side of the lower mold cavity 2, and the slitting blade 51 is accommodated in the blade receiving piece 52, and the number of both the slitting blade 51 and the blade receiving piece 52 can be specifically two.

[0027] In addition, the top surface of the upper mold cavity 1 is connected to a first cylinder, and the bottom surface of the base 31 of the core group 3 is connected to a second cylinder. The L-shaped lithium battery shell punching mold of the utility model can be applied to shell punching forming equipment.

[0028] The working process of the L-shaped lithium battery shell punching die of the utility model is as follows: the upper die cavity 1 is moved downward by the pressure of the first cylinder above it, the lower die cavity 2 is fixedly arranged, the aluminum-plastic film is located between the upper die cavity 1 and the lower die cavity 2, and the base 31 of the mold core group 3 is pressed by the pressure of the second cylinder below it to push up 9 groups of L-shaped mold cores 32 and square mold cores 33 to punch the aluminum-plastic film; then the first cylinder and the second cylinder are reset, the upper die cavity 1 and the base 31 of the mold core group 3 are withdrawn at the same time, and a molded film including 9 L-shaped aluminum-plastic film shells and 9 square aluminum-plastic film shells is generated at the same time; finally, the above-mentioned molded film is longitudinally cut by the slitting blade 51 and the cutting knife provided by the shell punching forming equipment is transversely cut to obtain single 9 L-shaped aluminum-plastic film shells and 9 square aluminum-plastic film shells.

[0029] Compared with the prior art, the utility model provides an L-shaped lithium battery shell punching mold, which has the following beneficial effects: the upper mold cavity and the lower mold cavity of the utility model are both provided with 9 identical L-shaped mold cavities at intervals, and the mold core group is provided with 9 identical L-shaped mold cores. Compared with the existing L-shaped lithium battery shell punching mold, the L-shaped lithium battery shell punching mold of the utility model can obtain 9 aluminum-plastic film shells through one shell punching process in the same time, thereby greatly improving the production efficiency of the L-shaped lithium battery aluminum-plastic film forming process; and the utility model is provided with a slitting blade, which can conveniently cut the formed film to obtain a single aluminum-plastic film shell.

[0030] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

Claims

1. An L-shaped lithium battery shell punching die, characterized in that: include: An upper mold cavity, a lower mold cavity and a core mold group are arranged in sequence from top to bottom, and both the upper mold cavity and the lower mold cavity are spaced apart with 9 identical L-shaped mold cavities, and the core mold group includes a base, and 9 identical L-shaped mold cores are spaced apart on the top surface of the base, and each L-shaped mold cavity of the upper mold cavity is arranged in one-to-one correspondence with each L-shaped mold cavity of the lower mold cavity, and each L-shaped mold cavity of the lower mold cavity is arranged in one-to-one correspondence with each L-shaped mold core.

2. The L-shaped lithium battery punching die according to claim 1, characterized in that: Both the upper mold cavity and the lower mold cavity are spaced apart with 9 identical square mold cavities, and each of the square mold cavities is respectively arranged close to each of the L-shaped mold cavities; the top surface of the base is spaced apart with 9 identical square mold cores, and each of the square mold cores is respectively arranged close to each of the L-shaped mold cores.

3. The L-shaped lithium battery punching die according to claim 2, characterized in that: The 9 L-shaped mold cavities of the upper mold cavity are evenly distributed, the 9 L-shaped mold cavities of the lower mold cavity are evenly distributed, and the 9 L-shaped mold cores of the mold core group are evenly distributed.

4. The L-shaped lithium battery punching die according to claim 1, characterized in that: It also includes a slitting blade, which is accommodated in the lower mold cavity.

5. The L-shaped lithium battery punching die according to claim 4, characterized in that: A blade receiving piece is provided on one side of the lower mold cavity, and the slitting blade is received in the blade receiving piece.

6. The L-shaped lithium battery punching die according to claim 5, characterized in that: The number of the slitting blades and the number of the blade receiving members are both two.

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