Punching device

Abstract

The utility model discloses a punching device. The punching device comprises a punching tool, a jacking rod, a limiting base and a first power mechanism. The punching tool is of a hollow structure and is connected to a first power mechanism, the jacking rod is movably arranged in a hollow cavity of the punching tool and can do telescopic motion, and the jacking rod is used for jacking out a membrane cut by the punching tool to be separated from an adhesive film. The limiting base is provided with a tool falling hole used for allowing the punching tool and the jacking rod to pass through. According to the punching device, the jacking rod is arranged, the jacking rod is movably arranged in the hollow cavity of the punching tool and can stretch out and draw back, the jacking rod can eject out the film cut by the punching tool to be separated from the adhesive film, the cut film is prevented from being adhered to the punching tool, the effect of automatically cleaning the tool is achieved, residual adhesive tailings are prevented from being stacked, and the punching efficiency is improved. Manual regular cleaning is not needed, and the production takt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a punching device. Background Art

[0002] The solar cells in photovoltaic modules are generally composed of front glass, front film, battery cell, back film and back glass / back panel. The back film needs to be punched at the lead-out position to facilitate the extension of the lead and the output of current. Since the film is sticky, when punching holes in the back film, in the traditional cutting process, as the time of use increases, residual adhesive tailings will accumulate at the blade position. The punching and retracting action will bring up the tailings and cause the film to fold back at the punching position. The problems derived from this include (1) the blade needs to be cleaned continuously, about once an hour, affecting the production cycle; (2) the tailings brought up by the retracting action and the bulge at the folding position can easily cause damage to the battery cell near the punching hole, affecting the rework rate and the yield rate. Utility Model Content

[0003] Based on this, it is necessary to provide a punching device. The punching device of the utility model can achieve the effect of automatically cleaning the tool, avoid the accumulation of residual rubber tailings, and do not require manual regular cleaning, thereby improving the production rhythm.

[0004] An embodiment of the present application provides a punching device.

[0005] A punching device comprises a punching tool, a lifting rod, a limiting base and a first power mechanism, wherein the limiting base is provided with a knife drop hole, wherein the knife drop hole is used for the punching tool and the lifting rod to pass through; the punching tool is a hollow structure, wherein the punching tool is connected to the first power mechanism, wherein the lifting rod is movably arranged in the hollow cavity of the punching tool and can move telescopically, and wherein the lifting rod is used for ejecting and separating a diaphragm cut by the punching tool.

[0006] In some embodiments, the punching device further includes a second power mechanism, wherein the second power mechanism is connected to the lifting rod to drive the lifting rod to perform telescopic movement.

[0007] In some embodiments, the punching device also includes an elastic component, which is arranged in the hollow cavity of the punching tool, one end of the elastic component is connected to the punching tool and the other end is connected to the lifting rod, and the elastic component is used to assist the lifting rod to reset after extending out of the hollow cavity of the punching tool.

[0008] In some embodiments, the elastic component is a telescopic spring.

[0009] In some embodiments, a boss structure is provided at a middle portion of the lifting rod, and the elastic component is sleeved on the lifting rod and contacts and cooperates with the boss structure.

[0010] In some embodiments, the punching tool is connected to the first power mechanism via a tool holder.

[0011] In some embodiments, the punching device also includes a positioning plate, which is connected to the limiting base, and a positioning hole is provided on the positioning plate, the positioning hole is opposite to the knife hole, the punching tool is passed through the positioning hole, and the outer wall of the punching tool is gap-matched with the positioning hole.

[0012] In some embodiments, the positioning plate is detachably connected to the limiting base via a plurality of positioning screws.

[0013] In some embodiments, a mounting groove is provided on the limiting base, the depth of the mounting groove is greater than or equal to the thickness of the positioning plate, and the positioning plate is disposed in the mounting groove.

[0014] In some embodiments, the punching device also includes a limiting gasket, which is elastic and is arranged in the installation groove on the inner side of the positioning plate. The limiting gasket has a limiting hole for the punching tool to pass through, and the limiting gasket also has a plurality of elongated deformation grooves connected to the limiting holes.

[0015] The punching device can lift and detach the cut film by setting a lifting rod. The lifting rod is movably set in the hollow cavity of the punching tool and can move telescopically. The lifting rod can push out and detach the film after the punching tool is cut, so as to avoid the cut film sticking to the punching tool, thereby achieving the effect of automatically cleaning the tool and avoiding the accumulation of residual rubber tailings. There is no need for manual regular cleaning of the punching tool, which improves the production rhythm and production efficiency. The cut film is no longer adhered to the punching tool, which avoids affecting the battery cell and reduces or avoids the problem of hidden cracks in the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0017] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings. In the following description, the same reference numerals represent the same parts.

[0018] Figure 1 It is a front view schematic diagram of a punching device according to an embodiment of the utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of a punching device according to an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of a partially exploded structure of a punching device according to an embodiment of the utility model;

[0021] Figure 4 for Figure 3 Schematic diagram of part of the structure shown.

[0022] Description of Reference Numerals

[0023] 10. Punching device; 100. Punching tool; 110. Tool holder; 200. Lifting rod; 210. Boss structure; 300. Limiting base; 310. Knife hole; 320. Mounting slot; 400. Elastic component; 500. Positioning plate; 510. Positioning hole; 520. Positioning screw; 600. Limiting gasket; 610. Limiting hole; 620. Deformation slot. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0025] 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.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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, unless otherwise clearly defined. 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] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] The present application provides a punching device 10 to solve the problems of cutter jamming and cutting edge tailing caused by the accumulation of tailings during the punching of the second film in the prior art photovoltaic module manufacturing process, as well as the problems of cell damage and production tact stagnation caused by the film folding back at the punching position. The punching device 10 will be described below in conjunction with the accompanying drawings.

[0031] The punching device 10 provided in the embodiment of the present application is exemplary, see Figure 1 As shown, Figure 1The punching device 10 of the present application can be used for the production of solar cells in the photovoltaic field.

[0032] In order to more clearly illustrate the structure of the punching device 10, the punching device 10 will be introduced below in conjunction with the accompanying drawings. Figure 1 As shown, Figure 1 This is a schematic front view of the structure of the punching device 10 provided in an embodiment of the present application.

[0033] A punching device 10 includes a punching tool 100, a lifting rod 200, a limiting base 300 and a first power mechanism. The limiting base 300 has a knife drop hole 310. The punching tool 100 is a hollow structure. The punching tool 100 is connected to the first power mechanism, and the first power mechanism is used to drive the punching tool 100 to move up and down to cut the film. Figure 2 As shown, Figure 2 This is a cross-sectional schematic diagram of a punching device 10 according to an embodiment of the utility model. The lifting rod 200 is movably disposed in the hollow cavity of the punching tool 100 and can be telescopically movable. The lifting rod 200 is used to push out the membrane after being cut by the punching tool 100, and the drop hole 310 on the limiting base 300 is used for the punching tool 100 and the lifting rod 200 to pass through. The length of the punching tool 100 is greater than the depth of the drop hole 310, so that the punching tool 100 can extend out of the drop hole 310 when punching.

[0034] In some embodiments, the punching device 10 further includes a second power mechanism. The second power mechanism is connected to the lifting rod 200 to drive the lifting rod 200 to move in a telescopic manner.

[0035] In some embodiments, the first power mechanism and the second power mechanism may be a drive motor, a drive cylinder, etc. The first power mechanism and the second power mechanism are not shown in the drawings.

[0036] In some embodiments, the punching device 10 further includes an elastic component 400. The elastic component 400 is disposed in the hollow cavity of the punching tool 100, one end of the elastic component 400 is connected to the punching tool 100 and the other end is connected to the lifting rod 200, and the elastic component 400 is used to assist the lifting rod 200 in resetting after extending out of the hollow cavity of the punching tool 100.

[0037] In some embodiments, the elastic member 400 is a telescopic spring.

[0038] In some of these embodiments, see Figure 3 As shown, Figure 3This is a schematic diagram of a partially exploded structure of a punching device 10 according to an embodiment of the utility model. A boss structure 210 is provided at the middle of the lifting rod 200. The elastic component 400 is sleeved on the lifting rod 200 and contacts and cooperates with the boss structure 210. The boss structure 210 is provided to limit the elastic component 400. When the lifting rod 200 pushes out the punching tool 100, the elastic component 400 is limited by the boss structure 210 and compressed. After the second power mechanism loses power, the elastic component 400 assists the lifting rod 200 to retract into the hollow cavity of the punching tool 100.

[0039] In some of the embodiments, the punching tool 100 is connected to the first power mechanism via a tool holder 110 .

[0040] In some of these embodiments, see Figure 3 As shown, the punching device 10 further includes a positioning plate 500. The positioning plate 500 is connected to the limiting base 300. A positioning hole 510 is provided on the positioning plate 500. The positioning hole 510 is opposite to the knife hole 310, and the punching tool 100 is penetrated through the positioning hole 510, and the outer wall of the punching tool 100 is gap-matched with the positioning hole 510. The positioning plate 500 is provided for positioning and limiting the punching tool 100, and the punching tool 100 is not prone to positional deviation during operation, thereby improving the punching quality.

[0041] In some embodiments, the positioning plate 500 is detachably connected to the limiting base 300 via a plurality of positioning screws 520. The detachable connection between the positioning plate 500 and the limiting base 300 via a plurality of positioning screws 520 facilitates the disassembly and replacement of the positioning plate 500.

[0042] In some embodiments, a mounting groove 320 is provided on the limiting base 300. The depth of the mounting groove 320 is greater than or equal to the thickness of the positioning plate 500, and the positioning plate 500 is disposed in the mounting groove 320. The mounting groove 320 can accommodate the positioning plate 500, so that the tool seat 110 can contact and cooperate with the limiting base 300 during punching.

[0043] In some of these embodiments, see Figure 3 and Figure 4 As shown, Figure 4 for Figure 3 The partial structural diagram of the structure shown in the figure, the punching device 10 also includes a limiting gasket 600. The limiting gasket 600 is elastic, and is arranged in the mounting groove 320 on the inner side of the positioning plate 500. The limiting gasket 600 has a limiting hole 610 for the punching tool 100 to pass through, and the limiting gasket 600 also has a plurality of elongated deformation grooves 620 connected to the limiting holes 610.

[0044] Among them, the size of the limiting hole 610 is smaller than the size of the punching tool 100. Specifically, the inner diameter of the limiting hole 610 is smaller than the outer diameter of the punching tool 100. The limiting gasket 600 cooperates with the setting of the deformation groove 620, so that the punching tool 100 can squeeze the surrounding part of the deformation groove 620 to pass through the limiting hole 610. When the punching tool 100 is separated from the limiting hole 610, the part of the limiting gasket 600 located around the limiting hole 610 can tightly wrap the punching tool 100 to clean the punching tool 100. In this application, the setting of the limiting gasket 600 is used for secondary cleaning of adhered membranes, glue, etc. When the lifting rod 200 fails to effectively push out the cut membrane and is adhered by the punching tool 100, the limiting gasket 600 is used for secondary cleaning, and the punching tool 100 and the inner wall of the limiting hole 610 are interference fit or contact fit. During cleaning, in order for the punching tool 100 to pass smoothly through the limiting gasket 600, the limiting gasket 600 is also provided with a plurality of long deformation grooves 620 connected to the limiting hole 610. For example, the plurality of deformation grooves 620 are in the shape of a "M" shape, a "cross" shape, an "X" shape, etc. The plurality of deformation grooves 620 facilitate the deformation of the limiting gasket 600 so that the punching tool 100 can pass smoothly. At the same time, the area around the limiting hole 610 can scrape the punching tool 100 to clean the adhered membrane.

[0045] In some embodiments, a limiting gasket 600 may also be provided on the bottom surface of the limiting base 300. The limiting gasket 600 on the bottom surface of the limiting base 300 and the limiting gasket 600 in the mounting groove 320 can achieve a double cleaning effect, which can basically ensure that the punching tool 100 will not adhere to the cut membrane.

[0046] In some embodiments, the depth of the installation groove 320 is equal to the sum of the thickness of the positioning plate 500 and the thickness of the limiting gasket 600, so that the positioning plate 500 and the limiting gasket 600 are completely accommodated in the installation groove 320. In this way, the punching device 10 can be compact in structure and highly stable during installation and operation.

[0047] In summary, the lifting rod 200 is provided in the present application and is movably arranged in the hollow cavity of the punching tool 100 and can be telescopically moved. The lifting rod 200 can push out the membrane cut by the punching tool 100 to separate from the adhesive film, and avoid the cut membrane from adhering to the punching tool 100, so as to achieve the effect of automatically cleaning the tool, avoid the accumulation of residual adhesive tailings, and do not need manual regular cleaning, thereby improving the production rhythm and production efficiency. At the same time, the punching tool 100 will no longer adhere to the cut membrane, so as to avoid affecting the battery cell, and reduce or avoid the problem of hidden cracks in the battery cell.

[0048] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0050] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A punching device (10), characterized in that: The invention comprises a punching tool (100), a lifting rod (200), a limiting base (300) and a first power mechanism, wherein the limiting base (300) is provided with a knife drop hole (310), and the knife drop hole (310) is used for the punching tool (100) and the lifting rod (200) to pass through; the punching tool (100) is a hollow structure, the punching tool (100) is connected to the first power mechanism, the lifting rod (200) is movably arranged in the hollow cavity of the punching tool (100) and can move telescopically, and the lifting rod (200) is used to eject and detach the membrane after being cut by the punching tool (100).

2. The punching device (10) according to claim 1, characterized in that: The punching device (10) further comprises a second power mechanism, the second power mechanism being connected to the lifting rod (200) and used for driving the lifting rod (200) to perform telescopic movement.

3. The punching device (10) according to claim 1, characterized in that: The punching device (10) further comprises an elastic component (400), wherein the elastic component (400) is arranged in the hollow cavity of the punching tool (100), one end of the elastic component (400) is connected to the punching tool (100) and the other end is connected to the lifting rod (200), and the elastic component (400) is used to assist the lifting rod (200) in resetting after extending out of the hollow cavity of the punching tool (100).

4. The punching device (10) according to claim 3, characterized in that: The elastic component (400) is a telescopic spring.

5. The punching device (10) according to claim 3, characterized in that: The middle portion of the lifting rod (200) is provided with a boss structure (210), and the elastic component (400) is sleeved on the lifting rod (200) and is in contact with and cooperates with the boss structure (210).

6. The punching device (10) according to any one of claims 1 to 5, characterized in that: The punching tool (100) is connected to the first power mechanism via a tool seat (110).

7. The punching device (10) according to any one of claims 1 to 5, characterized in that: The punching device (10) further comprises a positioning plate (500), wherein the positioning plate (500) is connected to the limiting base (300), and a positioning hole (510) is provided on the positioning plate (500), wherein the positioning hole (510) is opposite to the knife drop hole (310), and the punching tool (100) is passed through the positioning hole (510), and an outer wall of the punching tool (100) is clearance-matched with the positioning hole (510).

8. The punching device (10) according to claim 7, characterized in that: The positioning plate (500) is detachably connected to the limiting base (300) via a plurality of positioning screws (520).

9. The punching device (10) according to claim 7, characterized in that: The limiting base (300) is provided with a mounting groove (320), the depth of the mounting groove (320) is greater than or equal to the thickness of the positioning plate (500), and the positioning plate (500) is arranged in the mounting groove (320).

10. The punching device (10) according to claim 9, characterized in that: The punching device (10) further comprises a limiting gasket (600), the limiting gasket (600) being elastic and arranged in the installation groove (320) on the inner side of the positioning plate (500), the limiting gasket (600) having a limiting hole (610) for the punching tool (100) to pass through, and the limiting gasket (600) also having a plurality of elongated deformation grooves (620) connected to the limiting holes (610).

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