Jig for pre-folding arc-shaped battery packaging film

Abstract

The utility model discloses a jig used for pre-folding an arc-shaped battery packaging film, the packaging film comprises a first folding edge and a second folding edge connected with the first folding edge, the jig comprises a first bearing part, a second bearing part and an abutting seat, the first bearing part is provided with a first bearing position used for bearing the first folding edge, and the second bearing part is provided with a second bearing position used for bearing the second folding edge. The second bearing part is provided with a second bearing position used for bearing the second folded edge, the second bearing part is movably arranged on the first bearing part so as to be close to or far away from the first bearing position, the abutting seat is movably arranged on the first bearing part so as to be close to or far away from the first bearing position, and the side, facing the second bearing part, of the abutting seat is provided with a folding part; when the second bearing piece moves in the direction close to the first bearing position, the second bearing piece can drive the second folding edge to rotate, so that the packaging film forms a folding line at the position corresponding to the folding part, and therefore it can be guaranteed that the folding line is precisely flush, operation is easy, the packaging difficulty of the arc-shaped battery can be reduced, and the production efficiency of the arc-shaped battery is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery packaging technology, and in particular to a fixture for pre-folded arc-shaped battery packaging film. Background Technology

[0002] In the existing process of encapsulating curved batteries, the bare cell is first placed into the encapsulation film, and then the encapsulation film is manually folded along the edge of the bare cell before encapsulation. The manual folding of the encapsulation film requires multiple trial folds and cannot completely guarantee that the fold line is perfectly aligned. The operation is cumbersome and difficult, resulting in low production efficiency of curved batteries. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a fixture for pre-folding arc-shaped battery encapsulation films, which can ensure that the fold lines are aligned, thereby improving the production efficiency of arc-shaped batteries.

[0004] According to an embodiment of the present invention, a fixture for pre-folding an arc-shaped battery encapsulation film is provided. The encapsulation film includes a first folded edge and a second folded edge connected to the first folded edge. The fixture for pre-folding the arc-shaped battery encapsulation film includes:

[0005] The first support member is provided with a first support position for supporting the first folded edge;

[0006] The second support member is provided with a second support position for supporting the second folded edge. The second support member is movably disposed on the first support member so as to be close to or away from the first support position.

[0007] An abutment seat is movably disposed on the first support member to be close to or away from the first support position, and the abutment seat has a folded portion on the side facing the second support member;

[0008] When the second carrier moves in a direction close to the first carrier position, the second carrier can drive the second folded edge to rotate, so that the encapsulation film forms a fold line at the position corresponding to the folded portion.

[0009] The fixture for pre-folded arc-shaped battery encapsulation film according to the embodiments of the present invention has at least the following beneficial effects:

[0010] When bending the encapsulation film, the first folded edge and the second folded edge of the encapsulation film are placed on the first bearing position and the second bearing position, respectively. Then, the abutment is moved so that the abutment covers the first bearing position. At this time, the first folded edge is sandwiched between the first bearing member and the abutment. Then, the second bearing member is moved so that the second folded edge rotates relative to the first folded edge along the folded part. The encapsulation film forms a fold line at the position corresponding to the folded part, which can ensure that the fold line is accurate and flush. The operation is simple and can reduce the encapsulation difficulty of curved batteries, thereby improving the production efficiency of curved batteries.

[0011] According to some embodiments of the present invention, a first pivot structure is provided between the abutment seat and the first bearing member, and the abutment seat is rotatably disposed on the first bearing member through the first pivot structure.

[0012] According to some embodiments of the present invention, the first pivot structure includes a first pivot shaft disposed on the first bearing member and a first pivot hole disposed on the abutment seat. The first pivot hole is sleeved on the first pivot shaft, and the abutment seat can rotate about the axis of the first pivot shaft.

[0013] According to some embodiments of the present invention, the first bearing position is provided with a first positioning groove, the bottom wall of the first positioning groove is an arc surface structure, the first positioning groove is used to accommodate the arc edge of the first folded edge, the abutment seat is provided with a positioning protrusion, the positioning protrusion is provided with a surface that matches the curvature of the arc surface structure, and when the abutment seat rotates, the positioning protrusion can enter or exit the first positioning groove.

[0014] According to some embodiments of the present invention, the bottom wall of the first positioning groove is provided with a groove for accommodating the bare cell of the arc-shaped battery.

[0015] According to some embodiments of the present invention, a second pivot structure is provided between the second carrier and the first carrier, and the second carrier is rotatably disposed on the first carrier through the second pivot structure.

[0016] According to some embodiments of the present invention, the second pivot structure includes a second pivot shaft disposed on the first bearing member and a second pivot hole disposed on the second bearing member. The second pivot hole is sleeved on the second pivot shaft, and the second bearing member can rotate about the axis of the second pivot shaft.

[0017] According to some embodiments of the present invention, the first bearing member includes a first fixed seat and a first positioning block disposed on the first fixed seat. The first fixed seat and the first positioning block together define the first bearing position. The first positioning block is used to abut against the side of the first folded edge away from the second folded edge.

[0018] According to some embodiments of the present invention, the fixture for pre-folding the arc-shaped battery encapsulation film is provided with an adjustment structure, which is used to adjust the distance between the folded portion and the first positioning block.

[0019] According to some embodiments of the present invention, the adjustment structure includes a fastener and a waist-shaped hole provided in the first positioning block, wherein the fastener passes through the waist-shaped hole and is threadedly connected to the first fixing seat.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the structure of a fixture for pre-folded arc-shaped battery encapsulation film according to an embodiment of the present invention. In the figure, both the abutment seat and the second bearing member are far away from the first bearing position.

[0023] Figure 2 This is an exploded view of a fixture for a pre-folded arc-shaped battery encapsulation film according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of a fixture for pre-folding arc-shaped battery encapsulation film according to an embodiment of the present utility model. In the figure, the abutment seat is close to the first bearing position, and the second bearing member is far away from the first bearing position.

[0025] Figure 4 This is a schematic diagram of the structure of a fixture for pre-folded arc-shaped battery encapsulation film according to an embodiment of the present invention. In the diagram, the abutment seat and the second carrier are close to the first carrier position.

[0026] Figure 5 for Figure 4 Top view;

[0027] Figure 6 for Figure 5 Sectional view of line AA in the middle;

[0028] Figure 7 This is a schematic diagram of the encapsulation film after pre-folding, according to an embodiment of the present invention.

[0029] Figure label:

[0030] First bearing member 100, first bearing position 101, positioning groove 102, groove 103, first fixing seat 110, first positioning block 120, waist-shaped hole 121, first pivot shaft 130, second pivot shaft 140, second bearing member 200, second bearing position 201, second pivot hole 202, second fixing seat 210, second positioning block 220, abutment seat 300, first pivot hole 301, folded part 310, positioning protrusion 320, surface 321, encapsulation film 400, fold line 401, first folded edge 410, arc edge 411, first straight edge 412, second straight edge 413, second folded edge 420. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] In existing technologies, when packaging curved batteries, the bare cell is first placed into the packaging film, and then the film is manually folded along the edge of the bare cell before packaging. The manual folding of the packaging film requires multiple trial folds and cannot completely guarantee that the fold line is perfectly aligned. The operation is cumbersome and difficult, resulting in low production efficiency of curved batteries.

[0036] Reference Figures 1 to 7According to an embodiment of the present invention, a fixture for a pre-folded arc-shaped battery encapsulation film is provided. The encapsulation film 400 includes a first folded edge 410 and a second folded edge 420 connected to the first folded edge 410. The fixture is characterized by including a first support member 100, a second support member 200, and an abutment seat 300. The first support member 100 is provided with a first support position 101 for supporting the first folded edge 410, and the second support member 200 is provided with a second support position 201 for supporting the second folded edge 420. The second support member 200 is movably disposed on the first support member 100 to be close to or away from the first support position 101. The abutment 300 is movably disposed on the first support member 100 to be close to or away from the first support position 101. The abutment 300 has a folded portion 310 on the side facing the second support member 200. When the second support member 200 moves in the direction close to the first support position 101, the second support member 200 can drive the second folded edge 420 to rotate, so that the encapsulation film 400 forms a fold line 401 at the position corresponding to the folded portion 310. In this way, the fold line 401 can be accurately aligned, the operation is simple, the encapsulation difficulty of the arc battery can be reduced, and the production efficiency of the arc battery can be improved.

[0037] Specifically, when bending the encapsulation film 400, the first folded edge 410 and the second folded edge 420 of the encapsulation film 400 are placed on the first support position 101 and the second support position 201, respectively. Then, the abutment seat 300 is moved so that the abutment seat 300 covers the first support position 101. At this time, the first folded edge 410 is sandwiched between the first support member 100 and the abutment seat 300. Then, the second support member 200 is moved so that the second folded edge 420 rotates relative to the first folded edge 410 along the folded portion 310. The encapsulation film 400 forms a fold line 401 at the position corresponding to the folded portion 310, which can ensure that the fold line 401 is accurately aligned. The operation is simple and can reduce the encapsulation difficulty of the arc battery, thereby improving the production efficiency of the arc battery.

[0038] It should be noted that the encapsulation film 400 is made of materials such as aluminum-plastic film, which will not be described in detail here.

[0039] It should be noted that the folded portion 310 has a wedge-shaped structure, which can reduce the width of the fold line 401, but this will not be described in detail here.

[0040] In some embodiments of this utility model, a first pivot structure is provided between the abutment seat 300 and the first bearing member 100. The abutment seat 300 is rotatably disposed on the first bearing member 100 through the first pivot structure, which facilitates driving the abutment seat 300 to move in a direction close to or away from the first bearing position 101.

[0041] As another implementation, the abutment seat 300 can also be slidably disposed on the first support member 100 via a linear module, which will not be described in detail here.

[0042] In some embodiments of this utility model, the first pivot structure includes a first pivot shaft 130 disposed on the first bearing member 100 and a first pivot hole 301 disposed on the abutment seat 300. The first pivot hole 301 is sleeved on the first pivot shaft 130, and the abutment seat 300 can rotate around the axis of the first pivot shaft 130, which facilitates driving the abutment seat 300 to move in a direction close to or away from the first bearing position 101.

[0043] Specifically, there are two first pivot holes 301. One of the two first pivot holes 301 is located on one side of the length direction of the abutment seat 300, and the other is located on the other side of the length direction of the abutment seat 300. There are correspondingly two first pivot shafts 130. The first pivot holes 301 are sleeved on the corresponding first pivot shafts 130, which facilitates driving the abutment seat 300 to move in the direction of approaching or moving away from the first bearing position 101.

[0044] It should be noted that the first pivot shaft 130 can also be connected to the output shaft of the first drive motor. The first pivot shaft 130 is fixedly connected to the abutment seat 300. The first drive motor can drive the abutment seat 300 to rotate through the first pivot shaft 130. This is not a limitation.

[0045] It should be noted that the positions of the first pivot shaft 130 and the first pivot hole 301 can be interchanged, that is, the first pivot shaft 130 is located on the abutment seat 300 and the first pivot hole 301 is located on the first bearing member 100, without any limitation.

[0046] In some embodiments of this utility model, the first bearing position 101 is provided with a first positioning groove 102, the bottom wall of the first positioning groove 102 is an arc surface structure, the first positioning groove 102 is used to accommodate the arc edge 411 of the first folded edge 410, the abutment seat 300 is provided with a positioning protrusion 320, the positioning protrusion 320 is provided with a surface 321 that matches the curvature of the arc surface structure, when the abutment seat 300 rotates, the positioning protrusion 320 can enter or exit the first positioning groove 102, on the one hand, it can facilitate positioning the position of the first folded edge 410 in the first bearing position 101, on the other hand, it can adapt to the shape of the arc battery.

[0047] Specifically, the first folded edge 410 includes a first straight edge 412, a second straight edge 413, and an arc-shaped edge 411 disposed between the first straight edge 412 and the second straight edge 413. The fold line 401 is disposed between the first straight edge 412 and the second folded edge 420. When the positioning protrusion 320 enters the first positioning groove 102, the arc-shaped edge 411 is sandwiched between the bottom wall of the first positioning groove 102 and the surface 321 of the positioning protrusion 320. Moreover, the curvature of the arc structure and the curvature of the surface 321 are matched with the curvature of the arc-shaped battery. On the one hand, it is convenient to position the first folded edge 410 at the first bearing position 101. On the other hand, it can adapt to the shape of the arc-shaped battery.

[0048] In some embodiments of this utility model, the bottom wall of the first positioning groove 102 is provided with a groove 103, which is used to accommodate the bare cell of the arc-shaped battery and facilitates the positioning of the bare cell.

[0049] In some embodiments of this utility model, a second pivot structure is provided between the second support member 200 and the first support member 100. The second support member 200 is rotatably disposed on the first support member 100 through the second pivot structure, which facilitates driving the second support member 200 to move in a direction close to or away from the first support position 101.

[0050] It should be noted that the second carrier 200 can also be slidably disposed on the first carrier 100 via a linear module, which will not be described in detail here.

[0051] In some embodiments of this utility model, the second pivot structure includes a second pivot shaft 140 disposed on the first support member 100 and a second pivot hole 202 disposed on the second support member 200. The second pivot hole 202 is sleeved on the second pivot shaft 140, and the second support member 200 can rotate around the axis of the second pivot shaft 140, which facilitates driving the second support member 200 to move in a direction close to or away from the first support position 101.

[0052] Specifically, there are two second pivot holes 202. One of the two second pivot holes 202 is located on one side of the length direction of the second support member 200, and the other is located on the other side of the length direction of the second support member 200. There are correspondingly two second pivot shafts 140. The second pivot holes 202 are sleeved on the corresponding second pivot shafts 140, which facilitates driving the second support member 200 to move in the direction of approaching or moving away from the first support position 101.

[0053] It should be noted that the second pivot shaft 140 can also be connected to the output shaft of the second drive motor. The second pivot shaft 140 is fixedly connected to the second carrier 200. The second drive motor can drive the second carrier 200 to rotate through the second pivot shaft 140. This is not a limitation.

[0054] It should be noted that the positions of the second pivot shaft 140 and the second pivot hole 202 can also be interchanged, that is, the second pivot shaft 140 is located on the second support member 200, and the second pivot hole 202 is located on the first support member 100, without any restrictions.

[0055] In some embodiments of this utility model, the first support member 100 includes a first fixed base 110 and a first positioning block 120 disposed on the first fixed base 110. The first fixed base 110 and the first positioning block 120 together define the first support position 101. The first positioning block 120 is used to abut against the side of the first folded edge 410 away from the second folded edge 420, which can facilitate the positioning of the first folded edge 410 to ensure the accurate position of the fold line 401.

[0056] Specifically, when pre-folding the encapsulation film 400, the side of the first folded edge 410 away from the second folded edge 420 is brought into contact with the first positioning block 120, which can position the first folded edge 410 on the first bearing position 101, thereby positioning the position of the fold line 401, ensuring that the position of the fold line 401 is accurate.

[0057] In some embodiments of this utility model, the fixture for pre-folding arc-shaped battery encapsulation film is provided with an adjustment structure. The adjustment structure is used to adjust the distance between the folded portion 310 and the first positioning block 120, so as to be applicable to encapsulation films 400 of different sizes and specifications, thereby improving the versatility of the fixture for pre-folding arc-shaped battery encapsulation film.

[0058] In some embodiments of this utility model, the adjustment structure includes a fastener and a waist-shaped hole 121 provided in the first positioning block 120. The fastener passes through the waist-shaped hole 121 and is threadedly connected to the first fixing seat 110, which facilitates the adjustment of the distance between the first positioning block 120 and the folded part 310.

[0059] Specifically, the fastener is a bolt or screw, etc. The length direction of the waist-shaped hole 121 extends from the width direction of the first bearing member 100. When the width of the first folded edge 410 decreases, the fastener can be loosened to move the first positioning block 120, so that the distance between the first positioning block 120 and the folded part 310 decreases, and then the fastener can be tightened. When the width of the first folded edge 410 increases, the fastener can be loosened to move the first positioning block 120, so that the distance between the first positioning block 120 and the folded part 310 increases, and then the fastener can be tightened. The operation is simple, convenient and quick, and it is easy to adjust the distance between the first positioning block 120 and the folded part 310.

[0060] It should be noted that the adjustment structure can also be a lead screw, which is rotatably mounted on the first fixed seat 110 and threadedly connected to the first positioning block 120, and can also adjust the distance between the first positioning block 120 and the folded part 310.

[0061] In some embodiments of this utility model, the second support member 200 includes a second fixed base 210 and a second positioning block 220 disposed on the second fixed base 210. The second fixed base 210 and the second positioning block 220 together define the second support position 201. The second positioning block 220 is used to abut against the side of the second folded edge 420 away from the first folded edge 410, which can facilitate the positioning of the second folded edge 420.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. A fixture for a pre-folded arc-shaped battery encapsulation film, the encapsulation film (400) comprising a first folded edge (410) and a second folded edge (420) connected to the first folded edge (410), characterized in that, include: The first support member (100) is provided with a first support position (101) for supporting the first folded edge (410); The second support member (200) is provided with a second support position (201) for supporting the second fold (420). The second support member (200) is movably disposed on the first support member (100) to be close to or away from the first support position (101). An abutment (300) is movably disposed on the first support member (100) to be close to or away from the first support position (101), and the abutment (300) has a folded portion (310) on the side facing the second support member (200); When the second carrier (200) moves in a direction close to the first carrier position (101), the second carrier (200) can drive the second folded edge (420) to rotate so that the encapsulation film (400) forms a fold line (401) at the position corresponding to the folded portion (310).

2. The fixture for pre-folded arc-shaped battery encapsulation film according to claim 1, characterized in that, A first pivot structure is provided between the abutment seat (300) and the first carrier (100), and the abutment seat (300) is rotatably disposed on the first carrier (100) through the first pivot structure.

3. The fixture for pre-folded arc-shaped battery encapsulation film according to claim 2, characterized in that, The first pivot structure includes a first pivot shaft (130) disposed on the first bearing member (100) and a first pivot hole (301) disposed on the abutment seat (300). The first pivot hole (301) is sleeved on the first pivot shaft (130), and the abutment seat (300) can rotate about the axis of the first pivot shaft (130).

4. The fixture for pre-folded arc-shaped battery encapsulation film according to claim 2, characterized in that, The first bearing position (101) is provided with a first positioning groove (102). The bottom wall of the first positioning groove (102) is an arc surface structure. The first positioning groove (102) is used to accommodate the arc edge (411) of the first folded edge (410). The abutment seat (300) is provided with a positioning protrusion (320). The positioning protrusion (320) is provided with a surface (321) that matches the curvature of the arc surface structure. When the abutment seat (300) rotates, the positioning protrusion (320) can enter or exit the first positioning groove (102).

5. The fixture for pre-folded arc-shaped battery encapsulation film according to claim 4, characterized in that, The bottom wall of the first positioning groove (102) is provided with a groove (103), which is used to accommodate the bare cell of the arc-shaped battery.

6. The fixture for pre-folded arc-shaped battery encapsulation film according to claim 1, characterized in that, A second pivot structure is provided between the second support member (200) and the first support member (100), and the second support member (200) is rotatably disposed on the first support member (100) through the second pivot structure.

7. The fixture for pre-folded arc-shaped battery encapsulation film according to claim 6, characterized in that, The second pivot structure includes a second pivot shaft (140) disposed on the first support member (100) and a second pivot hole (202) disposed on the second support member (200). The second pivot hole (202) is sleeved on the second pivot shaft (140), and the second support member (200) can rotate about the axis of the second pivot shaft (140).

8. The fixture for pre-folded arc-shaped battery encapsulation film according to claim 1, characterized in that, The first support member (100) includes a first fixed seat (110) and a first positioning block (120) disposed on the first fixed seat (110). The first fixed seat (110) and the first positioning block (120) together define the first support position (101). The first positioning block (120) is used to abut against the side of the first folded edge (410) away from the second folded edge (420).

9. The fixture for pre-folded arc-shaped battery encapsulation film according to claim 8, characterized in that, The fixture for pre-folding the arc-shaped battery encapsulation film is provided with an adjustment structure, which is used to adjust the distance between the folded portion (310) and the first positioning block (120).

10. The fixture for pre-folded arc-shaped battery encapsulation film according to claim 9, characterized in that, The adjustment structure includes a fastener and a waist-shaped hole (121) provided in the first positioning block (120). The fastener passes through the waist-shaped hole (121) and is threadedly connected to the first fixing seat (110).

Images