Mould for positive and negative pole pieces of battery

Abstract

The utility model discloses a battery positive and negative pole piece mold. The battery positive and negative pole piece mold comprises an upper supporting plate, upper foot pads, an upper mold base, an upper base plate, an upper clamping plate, an upper stripping plate and a lower mold base which are sequentially arranged from top to bottom, the edges of the two ends of the upper foot pad are each provided with two semicircular notches, the two ends of the upper die base are each provided with two round holes, and the four semicircular notches correspond to the round holes in a one-to-one concentric mode. A groove is formed in the middle of the upper clamping plate and used for installing the upper base plate, three first punch holes are formed in the groove and used for allowing punches to penetrate through, and the upper ends of the punches are fixed to the upper base plate. Small guide column fixing holes are formed in the positions, located on the two sides of the groove, of the upper clamping plate, and a second through hole is formed in the upper stripping plate. According to the utility model, the fit clearance among parts of the die is reduced, the fit precision among the punch, the upper die and the lower die is improved, and the punched electrode slice is good in smoothness, high in quality and attractive in appearance.

Description

Technical Field

[0001] The utility model relates to an electrode sheet, in particular to a battery positive and negative electrode sheet mould. Background Art

[0002] When processing positive and negative electrode sheets, the electrode materials are placed in the mold for punching, but the connection gaps between the mold components are large, resulting in poor smoothness of the edges of the electrode sheets. The current structure is that the lower die base and the lower template directly open holes that match the shape of the electrode sheets, and the punch extends downward into the holes to punch the electrode sheets. However, errors will occur between the lower die base, the lower template and the upper die during movement, resulting in a large gap between the components when the punch contacts the electrode sheet, so that the punch and the hole cannot correspond well, resulting in deviations, which leads to burrs and uneven edges of the electrode sheets after punching, affecting the quality of the electrode sheets. Utility Model Content

[0003] In order to solve the defects of the above-mentioned prior art, the utility model provides a battery positive and negative electrode sheet mold. The utility model reduces the fitting gap between the mold parts, improves the fitting accuracy between the punch and the upper and lower molds, and the punched electrode sheet has good smoothness, high quality and beautiful appearance.

[0004] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a battery positive and negative electrode sheet mold, including an upper support plate, an upper pad, an upper die seat, an upper pad, an upper clamping plate, an upper stripping plate, and a lower die seat arranged in sequence from top to bottom; two semicircular notches are provided at the edges of both ends of the upper pad, two circular holes are provided at both ends of the upper die seat, and the four semicircular notches correspond to the circular holes one by one with the same center; a groove is provided in the middle of the upper clamping plate for installing the upper pad, and three first punch holes are provided at the position of the groove for piercing the punch The upper end of the punch is fixed to the upper pad; the upper clamping plate is provided with small guide column fixing holes on both sides of the groove, the upper stripping plate is provided with a second through hole, and also includes a small guide column, the upper end of the small guide column is fixed to the small guide column fixing hole after passing through the second through hole, the upper surface of the lower die base is embedded with a lower template, the lower template is provided with a through hole and a third punch hole, the lower end of the small guide column is passed through the through hole; the upper stripping plate is provided with a second punch hole, the second punch hole and the third punch hole correspond to the first punch hole.

[0005] Furthermore, two positioning through holes are provided at both ends of the upper clamping plate, and the positioning through holes correspond to the circular holes.

[0006] Furthermore, the upper release plate is provided with four spring holes, springs are arranged in the spring holes, and the upper ends of the springs pass through the upper clamping plate and are fixed to the upper pad.

[0007] Furthermore, two lower pads are embedded in the upper surface of the lower mold base, and the two lower pads are located on both sides of the lower mold plate.

[0008] In summary, the utility model has achieved the following technical effects:

[0009] The utility model arranges inner guide pillars on the upper pad, the upper die seat and the upper clamping plate to ensure the stability of the upper die and always maintain a small gap during the reciprocating motion, thereby improving the accuracy of the punch during operation;

[0010] The utility model is provided with a small guide column to form a secondary guide positioning, so as to ensure that the matching clearance between the upper clamping plate, the upper stripping plate, the lower die seat and the lower die plate is very small, thereby improving the working accuracy;

[0011] The utility model is provided with a spring, the function of which is to enable the upper and lower molds to be quickly disengaged during the cyclic reciprocating motion, thereby improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a top perspective view of a battery positive and negative electrode mold;

[0013] Figure 2 yes Figure 1 Side view of

[0014] Figure 3 yes Figure 1 Another side view of the

[0015] Figure 4 It is a top view of the upper pad foot;

[0016] Figure 5 It is a top view of the upper pad foot installed on the upper die base;

[0017] Figure 6 It is a schematic diagram of the upper splint;

[0018] Figure 7 It is a schematic diagram of upper and lower plates;

[0019] Figure 8 It is a schematic diagram of the upper template;

[0020] Fig. 9 is a schematic diagram of the lower pad;

[0021] Fig.10 It is a schematic diagram of the punch. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] Example:

[0029] like Figure 1 The figure shows a perspective view of a battery positive and negative electrode mold from top view. Figure 2 Shown is Figure 1 The side view of Figure 3 Shown is Figure 1 A side view from another angle includes an upper supporting plate 1, an upper pad 2, an upper die base 3, an upper pad 4, an upper clamping plate 5, an upper stripping plate 6, and a lower die base 7 which are arranged in sequence from top to bottom.

[0030] The upper support plate 1 is fixed to the upper surface of the upper foot 2, and the upper support plate 1 is also used to connect a driving mechanism such as a punch press.

[0031] like Figure 4 The top view of the upper foot 2 is shown, and two semicircular notches 201 are provided at the edges of both ends of the upper foot 2. Figure 5 FIG. 2 is a top view of the upper foot 2 installed on the upper die base 3. The upper die base 3 has two circular holes 301 at both ends. The four semicircular notches 201 correspond to the circular holes 301 one by one. Figure 6 As shown, two positioning through holes 501 are provided at both ends of the upper clamping plate 5, and the positioning through holes 501 correspond to the circular hole 301. The circular hole 301, the positioning through holes 501, and the semicircular notch 201 are used to install the outer guide column. The upper pad 2, the upper mold base 3, and the upper clamping plate 5 are connected and installed together with the outer guide column to ensure the stable installation of the mold, thereby improving the working accuracy of the entire equipment and reducing the fitting clearance between the upper pad 2, the upper mold base 3, the upper clamping plate 5 and other parts.

[0032] like Figure 6 As shown, a groove 502 is provided in the middle of the upper clamping plate 5 for mounting the upper pad 4. Figure 3 The upper surface of the upper pad 4 is flush with the upper surface of the upper clamping plate 5. Figure 2 The width of the upper pad 4 is the same as that of the upper clamping plate 5. Three first punch holes 503 are provided at the groove 502 for inserting the punch 12. The upper end of the punch 12 is fixed to the upper pad 4 and follows the movement of the upper pad 4 to punch and cut the electrode sheet.

[0033] like Figure 6 As shown, the upper clamping plate 5 is provided with small guide post fixing holes 504 on both sides of the groove 502, and the upper stripping plate 6 is provided with a second through hole 603. Figure 3 , further comprising a small guide post 14, the upper end of the small guide post 14 passes through the second through hole 603 and is fixed to the small guide post fixing hole 504, and a lower mold plate 8 is embedded on the upper surface of the lower mold base 7, such as Figure 8 As shown, the lower template 8 is provided with a third punch hole 801, and then combined with Figure 3The lower end of the small guide column 14 is penetrated in the through hole 802 to form a guiding function, thereby reducing the matching clearance between the upper clamping plate 5, the upper stripping plate 6, the lower die seat 7, and the lower die plate 8, thereby improving the working accuracy.

[0034] like Figure 7 As shown, the upper release plate 6 is provided with a second punch hole 602, and the lower template 8 is provided with a third punch hole 801. The second punch hole 602 and the third punch hole 801 correspond to the first punch hole 503. Under the guidance of the small guide column 14, the three layers of punch holes correspond one to one and accurately correspond, ensuring that the movement of the punch 12 is also precise, so that the appearance of the electrode sheet is beautiful and achieves the expected smoothness.

[0035] like Figure 7 As shown, the upper stripping plate 6 is provided with four spring holes 601, and springs 13 ( Figure 2 As shown), the upper end of the spring 13 passes through the upper clamping plate 5 and is fixed to the upper pad 4. The spring 13 allows the upper and lower molds to be quickly disengaged, thereby improving production efficiency.

[0036] like Figure 2 As shown, two lower pads 9 are also embedded on the upper surface of the lower die base 7 ( Fig. 9 As shown), two lower pads 9 are located on both sides of the lower template 8 to provide equal-height pads for the lower template 8.

[0037] like Fig.10 As shown, the punch 12 is configured to match the shape of the electrode sheet, and the second punch hole 602 , the third punch hole 801 , and the first punch hole 503 are all corresponding matching shapes.

[0038] Working principle:

[0039] The upper support plate 1 is fixed to the upper surface of the upper pad foot 2, the upper pad foot 2 is fixed to the upper die base 3 by bolts, the upper die base 3 is fixed to the upper clamping plate 5 by bolts, and the upper pad plate 4 is clamped and fixed;

[0040] The upper die seat 3, the upper pad 4, and the upper clamping plate 5 are also provided with a large guide column 11, and the large guide column 11 is matched with a linear bearing 10 to ensure the linearity of the upper die movement and ensure the accuracy;

[0041] Fix the upper stripping plate 6 on the lower mold plate 8, and fix the lower mold plate 8 on the lower mold base 7;

[0042] The electrode sheet material (not shown) is placed between the upper stripping plate and the upper mold plate, and the punch 12 moves downward to punch out the electrode sheet.

[0043] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A battery positive and negative electrode mold, characterized in that: The invention comprises an upper supporting plate (1), an upper pad (2), an upper die seat (3), an upper pad (4), an upper clamp (5), an upper stripping plate (6), and a lower die seat (7) which are arranged in sequence from top to bottom; two semicircular notches (201) are provided at the edges of both ends of the upper pad (2), two circular holes (301) are provided at both ends of the upper die seat (3), and the four semicircular notches (201) correspond to the circular holes (301) one by one with the same center; a groove (502) is provided in the middle of the upper clamp (5) for mounting the upper pad (4), and three first punch holes (503) are provided at the position of the groove (502) for piercing a punch (12), and the upper end of the punch (12) is fixed to the upper pad (4); the upper clamp ( 5) Small guide post fixing holes (504) are provided on both sides of the groove (502), the upper stripping plate (6) is provided with a second through hole (603), and also includes a small guide post (14), the upper end of the small guide post (14) is fixed to the small guide post fixing hole (504) after passing through the second through hole (603), the upper surface of the lower die base (7) is embedded with a lower template (8), the lower template (8) is provided with a through hole (802) and a third punch hole (801), the lower end of the small guide post (14) is passed through the through hole (802); the upper stripping plate (6) is provided with a second punch hole (602), the second punch hole (602) and the third punch hole (801) correspond to the first punch hole (503).

2. A battery positive and negative electrode sheet mold according to claim 1, characterized in that: Two positioning through holes (501) are provided at both ends of the upper clamping plate (5), and the positioning through holes (501) correspond to the circular holes (301).

3. A battery positive and negative electrode sheet mold according to claim 1, characterized in that: The upper release plate (6) is provided with four spring holes (601), a spring (13) is arranged in each of the spring holes (601), and the upper end of the spring (13) passes through the upper clamping plate (5) and is fixed to the upper pad (4).

4. A battery positive and negative electrode sheet mold according to claim 1, characterized in that: Two lower pads (9) are also embedded in the upper surface of the lower die base (7), and the two lower pads (9) are located on both sides of the lower die plate (8).

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