A film cutting mechanism

Abstract

The utility model provides a film cutting mechanism, which relates to the technical field of photovoltaic module film cutting. The film cutting mechanism includes a traction seat connected to an external driving mechanism; a tool holder fixedly connected to the traction seat through a support frame; wherein the tool holder includes a tool holder and a special-shaped block, the tool holder is provided with a plurality of mounting grooves, the side of the mounting groove is provided with fasteners, the special-shaped block and the blade are installed in the mounting groove, and when the fastener presses the special-shaped block, the special-shaped block can press the blade. By providing a plurality of mounting grooves for installing blades on the tool holder, a plurality of blades can be installed at the same time. When cutting the photovoltaic film, the external driving mechanism performs a knife-moving action to complete the cutting of a plurality of film strips, effectively improving the processing efficiency of the photovoltaic film. At the same time, the cooperation of the special-shaped block and the fastener facilitates the installation, fixing and disassembly of the blade.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component film cutting, in particular to a film cutting mechanism. Background Art

[0002] Cutting EVA film is one of the steps in the process of processing photovoltaic modules. In the prior art, a single film strip is generally cut one by one, which is inefficient.

[0003] At the same time, the existing blade holder usually adopts the method of clamping the blade on the side when fixing the blade. If you want to cut more film strips at a time, you need to install multiple blades close to each other at a short distance. In this case, it is difficult to disassemble and assemble the blade, which is not conducive to the rapid disassembly and assembly of the blade.

[0004] Therefore, a film cutting mechanism is urgently needed. Utility Model Content

[0005] The utility model provides a film cutting mechanism to solve the problems in the background technology.

[0006] The utility model adopts the following technical solution to solve the above problems: a film cutting mechanism, including a traction seat connected to an external driving mechanism; a knife holder fixedly connected to the traction seat through a support frame; wherein,

[0007] The tool holder includes a tool seat and a special-shaped block. The tool seat is provided with a plurality of mounting grooves. The sides of the mounting grooves are provided with fasteners. The special-shaped block and the blade are installed in the mounting grooves. When the fasteners press the special-shaped block, the special-shaped block can press the blade.

[0008] Preferably, the special-shaped block is composed of two wedge blocks, and when adjacent inclined surfaces of the two wedge blocks abut against each other, the opposite inclined surfaces of the two wedge blocks are parallel to the abutting surface of the blade.

[0009] Preferably, the fastener is a screw fastener.

[0010] Preferably, a disassembly hole is provided on the side of the installation groove, and a stretching piece is provided which passes through the disassembly hole and is rotatably connected to the special-shaped block.

[0011] Preferably, a step is provided in the installation groove, and the step is used to support the special-shaped block.

[0012] Preferably, a lifting piece is provided on the special-shaped block.

[0013] Preferably, the blade is provided with a "V"-shaped blade.

[0014] Preferably, the blade body of the blade is in a "T" shape.

[0015] Preferably, the tool holder is an integrated structure.

[0016] Preferably, the tool holder comprises a fixed seat and a plurality of tool seats, and the tool seats are movably connected to the fixed seat.

[0017] The utility model adopts the above technical solution to achieve the following beneficial effects:

[0018] The utility model provides a plurality of installation grooves for installing blades on the knife seat, so that a plurality of blades can be installed at the same time. When cutting the photovoltaic film, an external driving mechanism performs a knife-moving action once to complete the cutting of a plurality of film strips, thereby effectively improving the processing efficiency of the photovoltaic film. At the same time, the cooperation of the special-shaped block and the fastener facilitates the fixing and disassembly of the blade, especially when the blade installation spacing is small and the operating space is insufficient.

[0019] Other beneficial effects are described in the detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a film cutting mechanism of the utility model;

[0021] Figure 2 It is a schematic diagram of a three-dimensional structure in one embodiment of the utility model;

[0022] Figure 3 for Figure 2 Enlarged view of part a in the middle;

[0023] Figure 4 This is a schematic diagram of the structure of the knife holder in the embodiment of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the blade in the embodiment of the utility model.

[0025] exist Figure 1-Figure 5 middle,

[0026] 1. Traction seat; 2. Tool holder; 21. Tool seat; 211. Mounting slot; 212. Step platform; 22. Special-shaped block; 221. Lifting piece; 23. Fastener; 3. Support frame; 24. Blade; 241. Blade; 242. Blade body; 25. Tensile piece. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in more different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0028] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[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 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.

[0030] The utility model provides a film cutting mechanism, such as Figure 1 As shown, it includes a traction seat 1, which is connected to an external driving mechanism; a tool holder 2, which is fixedly connected to the traction seat 1 through a support frame 3; wherein, the tool holder 2 includes a tool seat 21 and a special-shaped block 22, and the tool seat 21 is provided with a plurality of mounting grooves 211, and the side of the mounting groove 211 is provided with a fastener 23, and the special-shaped block 22 and the blade 24 are installed in the mounting groove 211. When the fastener 23 presses against the special-shaped block 22, the special-shaped block 22 can fix the blade 24 by passive extrusion self-locking.

[0031] In this embodiment, a plurality of mounting grooves 211 for mounting blades 24 are provided on the blade holder 21, so that a plurality of blades 24 can be installed at the same time. When cutting photovoltaic film, an external driving mechanism performs a single cutting action to complete the cutting of a plurality of film strips, thereby effectively improving the processing efficiency of the photovoltaic film. At the same time, the cooperation of the special-shaped block 22 and the fastener 23 facilitates the fixing and disassembly of the blade 24, especially when the installation spacing of the blade 24 is small and the operating space is insufficient.

[0032] Of course, in specific implementation, the distance between two adjacent mounting grooves 211 on the blade holder 21 can be regarded as a unit distance. When the width of the film strip changes, a corresponding number of mounting grooves 211 can be avoided. If the film strip size is required to be two unit distances, when installing the blade 24, one mounting groove 211 can be avoided between every two mounting grooves 211 of the blade 24. In this way, the cutting requirements of film strips of different widths can be met.

[0033] In a specific implementation scenario, it is necessary to cut three film strips at the same time, and the width of each film strip is 30 mm. The film cutting mechanism includes a traction seat 1 connected to an external driving mechanism; a knife holder 2 fixedly connected to the traction seat 1 through a support frame 3, and the external driving mechanism pulls the knife holder 2 through the traction seat 1 to complete the knife movement; in this embodiment, the knife holder 2 includes a knife seat 21 and a special-shaped block 22.

[0034] Among them, Figure 4As shown, the knife seat 21 is an integrated structure, and three mounting grooves 211 are provided on the knife seat 21. The spacing between each mounting groove 211 is 30 mm, and a locking screw is installed on one side of each mounting groove 211;

[0035] The special-shaped block 22 is a wedge block, and the wedge block and the blade 24 are installed in the installation groove 211 .

[0036] In this embodiment, the shape of the mounting groove 211 matches that of the wedge block. When the locking screw is pressed inward through the mounting hole on the side of the mounting groove 211, the end of the locking screw abuts against the wedge block and causes the wedge block to be pushed inward under pressure. Under the limiting effect of one inclined surface of the wedge block and the mounting groove 211, the other inclined surface of the wedge block moves parallel to the position of the blade 24, and always remains parallel to the abutting surface of the blade 24, and finally locks the blade 24 between the wedge block and the inner wall of the mounting groove 211. The film cutting mechanism in this embodiment can complete the cutting of three film strips in one knife movement, effectively improving the processing efficiency of the film strips. Of course, in other embodiments of the utility model, the length of the knife seat 21, the number of mounting grooves 211, and the spacing between the mounting grooves 211 can be changed according to actual needs. The utility model does not specifically limit the number of mounting grooves 211 and the spacing between each mounting groove 211. At the same time, when the blade 24 is damaged and needs to be replaced, the locking screw can be loosened to remove the blade 24 for replacement. The operation is simple and convenient. Compared with the side cover locking method used in the prior art, the film cutting mechanism of the utility model will not be subject to the space limitation when the distance between the blades 24 is small when replacing the blade 24. It can adapt to the processing requirements of narrow film strips, and can effectively reduce the difficulty of replacing the blade 24 and improve the replacement efficiency of the blade 24.

[0037] In addition, the locking screw here can also be other forms of spiral fasteners such as bolts, as long as it can act on the wedge block so that the wedge block presses and fixes the blade 24. Of course, the spiral fastener here can also be other forms of fasteners 23 such as quick clamps, and the utility model does not make specific limitations on this.

[0038] In another embodiment of the present invention, Figure 3 As shown, the special-shaped block 22 is composed of two wedge blocks. When the adjacent inclined surfaces of the two wedge blocks are in contact with each other, the opposite inclined surfaces of the two wedge blocks are parallel to the contact surface of the blade 24.

[0039] In a specific embodiment, the wedge block away from the blade 24 is the first wedge block, and the wedge block close to the blade 24 is the second wedge block. The fastener 23 directly acts on the first wedge block. The process of fixing the blade 24 is as follows: the fastener 23 pushes the first wedge block inward, and the first wedge block pushes the second wedge block toward the blade 24 or the side away from the fastener 23. After the second wedge block abuts against the inner wall of the mounting groove 211 under the action of the first wedge block or under the joint action of the first wedge block and the blade 24, the second wedge block presses the blade 24. In this embodiment, the second wedge block applies a force perpendicular to the abutting surface to the blade 24 to ensure the stability of the blade 24 when working.

[0040] In another embodiment of the present invention, Figure 3 As shown, a disassembly hole is provided on the side of the installation groove 211, and a stretching member 25 is provided which penetrates the disassembly hole and is rotatably connected to the special-shaped block 22. In this embodiment, since the special-shaped block 22 may be stuck in the installation groove 211 due to the force of the fastener 23 when pressing the special-shaped block 22, when the blade 24 is unloaded, the stretching member 25 exerts a reverse force on the special-shaped block 22 to make it loose, thereby realizing the replacement of the blade 24.

[0041] In a specific embodiment, a disassembly hole is provided in the middle of the side of the mounting groove 211. The disassembly hole is a smooth through hole. A threaded hole coaxial with the through hole is provided on the wedge. The tensioning member 25 is a bolt, and the bolt cooperates with the threaded hole. When the wedge needs to be pulled out, the bolt is turned, and the bolt head first abuts against the knife seat 21. The bolt is further turned, and the wedge is pulled out.

[0042] In another specific embodiment, a disassembly hole is provided in the middle of the side of the installation groove 211. The disassembly hole is a threaded hole. The tensioning member 25 is a threaded rod matching the threaded hole, and the end of the threaded rod is rotatably connected to the wedge block. In this case, the threaded rod plays the role of pressing or pulling the wedge block when rotating forward or reverse.

[0043] In another embodiment of the present invention, Figure 4 As shown, a step 212 is provided in the installation groove 211, and the step 212 is used to carry the special-shaped block 22. The step 212 provides a bearing function for the special-shaped block 22, facilitates the installation of the special-shaped block 22, and prevents the special-shaped block 22 from directly sliding out of the installation groove 211 during installation.

[0044] In addition, a lifting member 221 is provided on the special-shaped block 22. When the special-shaped block 22 needs to be replaced, the special-shaped block 22 can be directly taken out from the installation groove 211 through the lifting member 221. The lifting member 221 here can be a lifting ring fixed to the special-shaped block 22, or a threaded hole. The special-shaped block 22 can be taken out from the installation groove 211 by cooperating with a lifting tool and the threaded hole.

[0045] In another embodiment of the present invention, Figure 5 As shown, a "V"-shaped blade 241 is provided on the blade 24. The "V"-shaped blade 241 enables bidirectional cutting of the blade 24, thereby improving the cutting efficiency of the film cutting mechanism. Specifically, the external driving mechanism pulls the knife holder 2 through the traction seat 1 to complete the knife-moving action, which includes two stages of knife-out and knife-returning. By setting the blade 241 of the blade 24 in a "V" shape, the blade 24 can cut the photovoltaic film in both the knife-out and knife-returning stages, effectively improving the cutting efficiency of the photovoltaic film.

[0046] In another embodiment of the present invention, Figure 5 As shown, the blade body 242 of the blade 24 is in a "T" shape. By providing the "T"-shaped blade body 242, it is easy to position and install the blade 24. Specifically, when installing the blade 24, the new blade 24 is placed in the installation groove 211, and the blade arm of the blade 24 is supported on the blade seat 21. Therefore, the length of the blade 24 extending from the installation groove 211 is fixed, so it is no longer necessary to adjust the extension size of the blade 24, which greatly improves the installation efficiency of the blade 24.

[0047] In another embodiment of the utility model, not shown in the figure, the knife holder 2 includes a fixed seat and a plurality of knife seats 21, and the knife seats 21 are movably connected to the fixed seat. By providing the knife seats 21 movably connected to the fixed seat, the distance between the knife seats 21, that is, the distance between the knives, can be adjusted, and the versatility of the film cutting mechanism is effectively improved. Among them, a single or multiple installation grooves 211 are provided on the knife seat 21.

[0048] Specifically, a knife holder 2 with a single mounting groove 211 is selected, and the knife holder 21 can be moved along the length direction of the fixed seat. When the cutting size of the photovoltaic film needs to be changed, the relative position of the knife holder 21 on the fixed seat is adjusted and re-fixed, without replacing the entire knife holder 2.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A film cutting mechanism, characterized in that: include, A fifth wheel (1) connected to an external driving mechanism; A tool holder (2) is fixedly connected to the traction seat (1) via a support frame (3); wherein the tool holder (2) comprises a tool seat (21) and a special-shaped block (22); the tool seat (21) is provided with a plurality of mounting grooves (211); a fastener (23) is provided on the side of the mounting groove (211); the special-shaped block (22) and the blade (24) are installed in the mounting groove (211); when the fastener (23) presses against the special-shaped block (22), the special-shaped block (22) can press against the blade (24).

2. A film cutting mechanism according to claim 1, characterized in that: The special-shaped block (22) is composed of two wedge blocks. When the adjacent inclined surfaces of the two wedge blocks are in contact with each other, the opposing inclined surfaces of the two wedge blocks are parallel to the contact surface of the blade (24).

3. A film cutting mechanism according to claim 1, characterized in that: The fastener (23) is a screw fastener.

4. A film cutting mechanism according to claim 1, characterized in that: A disassembly hole is provided on the side of the installation groove (211), and a stretching piece (25) is provided which passes through the disassembly hole and is rotatably connected to the special-shaped block (22).

5. A film cutting mechanism according to claim 1, characterized in that: A step (212) is provided in the installation groove (211), and the step (212) is used to carry the special-shaped block (22).

6. A film cutting mechanism according to claim 1, characterized in that: The special-shaped block (22) is provided with a lifting piece (221).

7. A film cutting mechanism according to claim 1, characterized in that: The blade (24) is provided with a V-shaped blade edge (241).

8. A film cutting mechanism according to claim 1, characterized in that: The blade body (242) of the blade (24) is in a "T" shape.

9. A film cutting mechanism according to claim 1, characterized in that: The tool holder (2) is an integrated structure.

10. The film cutting mechanism according to claim 1, characterized in that: The tool holder (2) comprises a fixed seat and a plurality of tool seats (21), and the tool seats (21) are movably connected to the fixed seat.

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