Aluminum-plastic film gradient shell punching die structure

Abstract

The utility model relates to the technical field of aluminum-plastic film shell processing, and discloses an aluminum-plastic film gradient shell punching die structure which comprises an upper die plate and a lower die plate, a die core assembly is arranged on the lower die plate and comprises a die core sleeve, a die core ejector rod is arranged on the lower die plate, and the die core ejector rod is connected with the die core sleeve. The die core sleeve is detachably installed on the die core ejector rod through a plurality of sets of fasteners, the end, away from the die core sleeve, of the die core ejector rod is fixedly connected with a punching ejector rod of a film punching machine, the die core ejector rod and the die core sleeve are of a split structure, and inclined faces distributed in a left-right mirror image mode are arranged on the outer surface of the die core sleeve. Through the inclined surface arranged on the die core sleeve, the pit depth shape of the aluminum plastic film shell gradually inclines downwards from the middle to the two sides, so that a certain fall is formed between the pit depth bottom and the middle after the same aluminum plastic film is punched and formed, and the phenomena that the bottom of the appearance of a finished product is sunken and the aluminum plastic film at the bottom is wrinkled are improved; the appearance of the bottom of the aluminum-plastic film shell is prevented from being sunken after the aluminum-plastic film shell is enveloped and packaged.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum-plastic film shell processing, in particular to an aluminum-plastic film slope shell punching die structure. Background Art

[0002] A cell is a single electrochemical cell containing positive and negative electrodes. It is generally not used directly. The difference between a cell and a battery is that a battery contains a protective circuit and a shell and can be used directly. Therefore, when assembling the battery, a shell needs to be installed on the outside of the cell. The shape of the shell must be consistent with the shape of the cell. The battery shell is generally an aluminum-plastic film shell, which is formed by die stamping during processing.

[0003] Aluminum-plastic film is also a kind of composite roll film. Its main component is aluminum. It is also the most commonly used composite roll film. The existing molds have the following defects when used for processing and forming aluminum-plastic film shells: the battery cell molding mold is on a plane as a whole, and the pit depths in different areas of the molded aluminum-plastic film are consistent. However, the bottom thickness of the roll core is thinner than the middle area due to the exposed 1-2mm of the bottom diaphragm coating and the shell insertion method. After the film is encapsulated, the bottom appearance is concave.

[0004] Therefore, we propose an aluminum-plastic film slope shell punching die structure. Utility Model Content

[0005] The utility model mainly solves the technical problem that the bottom of the formed aluminum-plastic film shell is easy to be sunken after packaging, and provides an aluminum-plastic film slope shell punching mold structure.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an aluminum-plastic film slope shell punching mold structure, comprising an upper template and a lower template, the lower template is provided with a core assembly, the core assembly includes a core sleeve, the lower template is provided with a core push rod, the core sleeve is detachably mounted on the core push rod by multiple sets of fasteners, the end of the core push rod away from the core sleeve is connected and fixed to the stamping push rod of the film punching machine, the core push rod and the core sleeve are split structures, and the outer surface of the core sleeve is provided with inclined surfaces that are mirror-imaged on the left and right.

[0007] Preferably, both the upper template and the lower template are provided with a fixed installation mechanism, and the fixed installation mechanism includes a fixed installation plate.

[0008] Preferably, the outer sides of the upper template and the lower template are fixedly installed with a fixed mounting plate, and a plurality of groups of threaded connection holes are penetrated through the fixed mounting plate. Fixing bolts are arranged inside the threaded connection holes. The upper template and the lower template are respectively fixed to the film punching machine through corresponding fixed mounting mechanisms. The set fixed mounting mechanism facilitates the installation and disassembly of the upper template and the lower template on the film punching machine.

[0009] Preferably, a plurality of groups of positioning holes are formed through the upper template, and the plurality of groups of positioning holes are distributed near the four corners of the upper template.

[0010] Preferably, positioning columns having a structure matching the positioning hole structure are fixedly installed at the four corners of the top surface of the lower template, and the mold closing accuracy is ensured by the cooperation between the positioning holes and the positioning columns.

[0011] Beneficial Effects

[0012] The utility model provides a mold structure for punching aluminum-plastic film slope shells. It has the following beneficial effects:

[0013] The aluminum-plastic film slope punching shell mold structure, during processing, the aluminum-plastic film is placed between the upper template and the lower template, the upper template and the lower template are controlled to close the mold, the punching ejector pin of the film punching machine pushes the mold core ejector pin to move upward, the mold core ejector pin drives the mold core sleeve upward, and the mold core sleeve performs a punching plastic action on the aluminum-plastic film, so that the aluminum-plastic film forms an aluminum-plastic film shell, and the inclined surface provided on the mold core sleeve makes the pit depth shape of the aluminum-plastic film shell gradually tilt downward from the middle to both sides, so that the bottom of the pit depth of the same aluminum-plastic film after punching and forming forms a certain drop with the middle, so as to match the winding core, improve the bottom depression of the finished product appearance and the wrinkling of the bottom aluminum-plastic film, and is suitable for the processing of aluminum-plastic film shells of different shapes, so as to avoid the occurrence of the bottom appearance depression of the aluminum-plastic film shell after film packaging.

[0014] The aluminum-plastic film slope shell punching mold structure achieves the effect of facilitating people to replace or clean the core sleeve by arranging the core ejector rod and the core sleeve as a split structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0017] Figure 1 This is a schematic diagram of the overall planar structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the planar structure of the lower template of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the lower template and the core component of the utility model.

[0020] Legend:

[0021] 1. Upper template; 2. Lower template; 3. Fixed mounting plate; 4. Threaded connection hole; 5. Fixing bolt; 6. Core push rod; 7. Core sleeve; 8. Positioning hole; 9. Positioning column; 10. Aluminum-plastic film. 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] Embodiment: A mold structure for punching a shell with a slope of aluminum-plastic film, such as Figure 1-Figure 3 As shown, it includes an upper template 1 and a lower template 2, and the upper template 1 and the lower template 2 are both provided with a fixed installation mechanism, and the fixed installation mechanism includes a fixed installation plate 3, and the outer sides of the upper template 1 and the lower template 2 are fixedly installed with the fixed installation plate 3, and a plurality of groups of threaded connection holes 4 are penetrated through the fixed installation plate 3, and the threaded connection holes 4 are provided with fixing bolts 5 inside. The upper template 1 and the lower template 2 are respectively fixed to the film punching machine through the corresponding fixed installation mechanisms, and the upper template 1 and the lower template 2 on the film punching machine are conveniently installed and disassembled through the set fixed installation mechanism;

[0024] The lower template 2 is provided with a core assembly, the core assembly includes a core sleeve 7, the lower template 2 is provided with a core push rod 6, the core sleeve 7 is detachably mounted on the core push rod 6 by a plurality of sets of fasteners, the core push rod 6 is connected and fixed to the punching push rod of the die punching machine at one end away from the core sleeve 7, the core push rod 6 and the core sleeve 7 are split structures, and such an arrangement makes it convenient for people to replace or clean the core sleeve 7, the outer surface of the core sleeve 7 is provided with an inclined surface that is mirror-imaged on the left and right, and when in use, a certain drop is formed between the bottom of the pit depth and the middle of the same aluminum-plastic film 10 after the pit is punched and formed, so as to match the winding core, improve the bottom depression of the finished product appearance and the wrinkling phenomenon of the bottom aluminum-plastic film 10, and be suitable for processing aluminum-plastic film shells of different shapes;

[0025] The upper template 1 is provided with a plurality of positioning holes 8, which are distributed near the four corners of the upper template 1. Positioning posts 9 whose structures match the positioning holes 8 are fixedly installed at the four corners of the top surface of the lower template 2. The positioning holes 8 and the positioning posts 9 are matched to ensure the precision of mold closing. During processing, the aluminum-plastic film 10 is placed between the upper template 1 and the lower template 2, and the upper template 1 and the lower template 2 are controlled to close the mold. The core push rod 6 is pushed upward by the punching push rod of the punching machine. The core push rod 6 drives the core sleeve 7 upward, and the core sleeve 7 plays a stamping plastic role on the aluminum-plastic film 10, so that the aluminum-plastic film 10 forms an aluminum-plastic film shell. The inclined surface opened on the core sleeve 7 makes the pit depth of the aluminum-plastic film 10 gradually tilt downward from the middle to both sides, so that the bottom of the pit depth of the same aluminum-plastic film 10 forms a certain drop with the middle after the pit is punched and formed, so as to match the winding core, improve the bottom concave appearance of the finished product and the wrinkling phenomenon of the bottom aluminum-plastic film shell, which is suitable for the processing of aluminum-plastic film shells of different shapes.

[0026] The working principle of this utility model:

[0027] During processing, the aluminum-plastic film 10 is placed between the upper template 1 and the lower template 2, and the upper template 1 and the lower template 2 are controlled to close the mold. The core push rod 6 is pushed to move upward by the punching push rod of the film punching machine, and the core push rod 6 drives the core sleeve 7 upward, and the core sleeve 7 performs a punching plastic action on the aluminum-plastic film 10, so that the aluminum-plastic film 10 forms an aluminum-plastic film shell. Through the inclined surface provided on the core sleeve 7, the pit depth shape of the aluminum-plastic film 10 shell is gradually inclined downward from the middle to both sides, so that the bottom of the pit depth of the same aluminum-plastic film 10 forms a certain drop with the middle after the pit is punched and formed, so as to match the winding core, improve the bottom depression of the finished product appearance and the wrinkling phenomenon of the bottom aluminum-plastic film 10, and is suitable for processing aluminum-plastic film shells of different shapes.

[0028] The cooperation between the positioning hole 8 and the positioning column 9 ensures the accuracy of mold closing.

[0029] The core push rod 6 and the core sleeve 7 are separate structures, and such an arrangement makes it convenient for people to replace or clean the core sleeve 7.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A mold structure for punching aluminum-plastic film with a gradient shell, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that: The lower template (2) is provided with a core assembly, the core assembly includes a core sleeve (7), the lower template (2) is provided with a core push rod (6), the core sleeve (7) is detachably mounted on the core push rod (6) by means of a plurality of sets of fasteners, the end of the core push rod (6) away from the core sleeve (7) is connected and fixed to a punching push rod of a film punching machine, the core push rod (6) and the core sleeve (7) are split structures, and the outer surface of the core sleeve (7) is provided with inclined surfaces that are mirror-imaged on the left and right.

2. The aluminum-plastic film slope punching mold structure according to claim 1, characterized in that: The upper template (1) and the lower template (2) are both provided with a fixed installation mechanism, and the fixed installation mechanism comprises a fixed installation plate (3).

3. The aluminum-plastic film slope punching mold structure according to claim 2, characterized in that: The outer side surfaces of the upper template (1) and the lower template (2) are fixedly mounted with a fixed mounting plate (3), a plurality of groups of threaded connection holes (4) are penetrated through the fixed mounting plate (3), and fixing bolts (5) are arranged inside the threaded connection holes (4). The upper template (1) and the lower template (2) are respectively fixed to the film punching machine through corresponding fixed mounting mechanisms.

4. The aluminum-plastic film slope punching mold structure according to claim 1, characterized in that: The upper template (1) is provided with a plurality of groups of positioning holes (8) extending therethrough, and the plurality of groups of positioning holes (8) are distributed near the four corners of the upper template (1).

5. The aluminum-plastic film slope punching mold structure according to claim 1, characterized in that: Positioning columns (9) having a structure matching that of the positioning holes (8) are fixedly installed at the four corners of the top surface of the lower template (2).

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