Four-opening trimming cutter for photovoltaic module

Abstract

The utility model discloses a four-opening trimming cutter for a photovoltaic module, and relates to the technical field of photovoltaic module processing, the four-opening trimming cutter comprises a thin trimming cutter body, the edges of two sides of the trimming cutter body are respectively provided with two cutter edges, the four cutter edges are the same in size and symmetrical in position in pairs, and the cutting edges of the two cutter edges on the same side face the same direction. According to the four-edge trimming cutter for the photovoltaic module, on the basis of an original single-edge trimming cutter and an original double-edge trimming cutter, redundant fixing positions of the trimming cutter body are fully utilized, the other end, away from the edge, of the trimming cutter body is universally provided with the edge, and under the condition that the average service life of each edge is kept unchanged for 40 thousand times, the trimming cutter can be used for trimming the photovoltaic module. By increasing the number of the cutter edges and changing the orientation of the cutter edges, the total service life of the single trimming cutter is prolonged to 160000 times, the left cutter and the right cutter are not distinguished any more, universality can be achieved, the stock pressure of spare parts is reduced, and the purposes of reducing cost and increasing efficiency are finally achieved on the premise that the product performance is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic module processing, and particularly relates to a four - port trimming knife for photovoltaic modules. Background Art

[0002] During the lamination process of crystalline silicon photovoltaic modules, the phenomenon of EVA film overflowing at the four - edge of the module will occur. This is mainly because enough EVA film is required during the lamination process to ensure good adhesion and sealing between solar cells. However, too much film will flow and overflow under high temperature and pressure, forming irregular edges. Such uneven edges not only affect the appearance of the module but may also cause inconvenience during installation and use. Therefore, it is necessary to set a trimming process to modify the appearance of the module.

[0003] In the prior art, a single - pass trimming machine is usually used to trim the overflowing glue at the four - edges of the photovoltaic module under the positioning of the pipeline transmission and alignment mechanism. However, the cutting edges of the double - port trimming knife installed on the single - pass trimming machine in the prior art are distinguished as left - hand and right - hand knives and cannot be used interchangeably. Moreover, the service life of each cutting edge is on average 40,000 times, and the total service life is 80,000 times. The service life of the entire trimming knife is relatively low, and the production loss is very high.

[0004] Therefore, it is necessary to propose a four - port trimming knife for photovoltaic modules to solve the above - mentioned technical problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a four - port trimming knife for photovoltaic modules to solve the above - mentioned technical problems existing in the prior art.

[0006] To achieve the above purpose, the utility model provides the following solution: A four - port trimming knife for photovoltaic modules includes a thin trimming knife body. Two cutting edges are respectively arranged on both side edges of the trimming knife body. The four cutting edges have the same size, are symmetrically arranged in pairs, and the cutting edges of the two cutting edges on the same side have the same orientation.

[0007] As an optional way, the four cutting edges have the same orientation, all facing the front of the trimming knife body.

[0008] As an optional way, the cutting edges of the two cutting edges on the left side of the trimming knife body face the front of the trimming knife body, and the cutting edges of the two cutting edges on the right side of the trimming knife body face the back of the trimming knife body.

[0009] As an optional way, the thickness of the trimming knife body is 2 mm.

[0010] As an optional way, the opening width of the cutting edge is 11 mm, and the opening width of the cutting edge of the blade is 8.5 mm.

[0011] As an alternative, the inclination angle of the blade is 26°.

[0012] As an alternative, the length of the edge trimming knife body is 80 mm, the width is 30 mm, and the center distance between two knife edges on the same side is 64 mm.

[0013] As an alternative, the edge trimming knife body is also provided with a mounting hole for mounting the edge trimming knife body on an edge trimming machine.

[0014] As an alternative, the mounting hole is provided in the center of the edge trimming knife body.

[0015] As an alternative, the mounting hole is a long strip mounting hole.

[0016] Compared with the prior art, the present utility model discloses at least the following beneficial effects:

[0017] The four-edge trimming knife for photovoltaic modules of the present utility model, on the basis of the original single-edge and double-edge trimming knives, makes full use of the redundant fixed positions of the edge trimming knife body. A knife edge is commonly provided at the other end of the edge trimming knife body away from the knife edge. Without changing the average service life of each knife edge of 40,000 times, by increasing the number of knife edges and changing the orientation of the knife edges, the total service life of a single edge trimming knife is increased to 160,000 times, and there is no longer a distinction between left and right knives, which can be made universal, reducing the pressure of spare parts inventory, and ultimately achieving the purpose of cost reduction and efficiency increase on the premise of ensuring product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the front view of Embodiment 1 of the present utility model;

[0020] Figure 2 It is the right view of Embodiment 1 of the present utility model;

[0021] Figure 3 It is the axonometric view of Embodiment 1 of the present utility model;

[0022] Figure 4 It is the installation effect diagram of Embodiment 1 of the present utility model;

[0023] Figure 5 It is the structural schematic diagram of Embodiment 2 of the present utility model;

[0024] Figure 6 Schematic diagram of the structure of Embodiment 3 of the present utility model;

[0025] In the figure: 1, trimming knife body; 2, long strip mounting hole; 3, cutting edge; 4, mounting seat; 5, hexagon socket head cap screw; 21, mounting hole 1; 22, mounting hole 2; 23, mounting hole 3; 31, left cutting edge; 32, right cutting edge. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0027] To make the above objects, features and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Embodiment 1:

[0029] Referring to Figures 1 to 4 As shown, Embodiment 1 of the present utility model provides a four - port trimming knife for photovoltaic modules, including a trimming knife body 1. The trimming knife body 1 is a rectangular thin - blade body, which is used to be fixed on the mounting seat 4 of the trimming knife to trim the overflow glue on the four sides of the photovoltaic module. Four cutting edges 3 are respectively arranged near the two short sides on the two long - side sides of the trimming knife body 1. The four cutting edges 3 are symmetrically arranged in pairs with respect to the length central axis and the width central axis of the trimming knife body 1. And in this embodiment, the cutting edges of the four cutting edges 3 all face the front of the trimming knife body 1. Compared with the prior art, the present utility model improves the original single - cutting - edge 3 and double - port trimming knife, and designs it as a four - port trimming knife. Without changing the service life of each cutting edge 3, the service life of a single trimming knife is extended, so as to achieve the purpose of reducing costs and improving efficiency.

[0030] The trimming knife of the prior art is designed with one or two cutting edges 3. In the double - port trimming knife, the cutting edges of the two cutting edges 3 face different directions, one faces the front of the trimming knife body 1 and the other faces the back of the trimming knife body 1, which distinguishes the left knife and the right knife and cannot be used interchangeably. While in this embodiment, the four cutting edges 3 face the same direction, and the left knife and the right knife can be used interchangeably.

[0031] In this embodiment, the trimming knife body 1 is provided with mounting holes for fixedly connecting to the mounting base 4 of the trimming machine. The mounting holes are long strip mounting holes 2 provided in the center of the trimming knife body 1 and penetrating its thickness direction. Designing the mounting holes as long strip holes facilitates position adjustment during installation, can reduce the precision requirements during trimming knife processing, and enables it to adapt to different mounting bases 4.

[0032] In this embodiment, the length of the trimming knife body 1 is 80 mm, the width is 30 mm, and the thickness is 2 mm; the opening width of the cutting edge 3 is 11 mm, the depth of the cutting edge 3 is 8082 mm, the opening width of the cutting edge opening is 8.5 mm, the center distance between two adjacent cutting edges 3 on the same side is 64 mm, the distance from the center of the cutting edge 3 to the short side of the trimming knife body 1 is 8 mm, and the length of the long strip hole is 40 mm, specifically as Figure 1 shown.

[0033] As Figure 4 shown, the trimming knife of this embodiment is fixedly installed on the mounting base 4 through an internal hexagonal bolt 5. By changing the fastening position of the long strip mounting hole 2 and the internal hexagonal bolt 5, the length of the trimming knife extending out of the mounting base 4 can be adjusted.

[0034] In the case where the service life of each cutting edge 3 of the four - cutting - edge trimming knife in the embodiment of the present utility model remains unchanged at 40,000 times, by increasing the number of cutting edges 3 and changing the orientation of the cutting edges 3, the total service life of a single trimming knife is increased to 160,000 times, and there is no need to distinguish between left and right knives, which can achieve universality, reduce the pressure of spare parts inventory, and ultimately achieve the purpose of cost reduction and efficiency increase on the premise of ensuring product performance.

[0035] Embodiment 2:

[0036] Referring to Figure 5 shown, Embodiment 2 of the present utility model provides a four - cutting - edge trimming knife for photovoltaic modules, including a trimming knife body 1. The same as in Embodiment 1, the trimming knife body 1 is a rectangular thin - blade body and has the same external dimensions as the trimming knife body 1 in Embodiment 1. The difference is that in this embodiment, four cutting edges 3 are respectively arranged near the two short sides on the two long - side sides of the trimming knife body 1. The four cutting edges 3 are symmetrically arranged in pairs with respect to the length central axis and width central axis of the trimming knife body 1. The cutting edges of the two cutting edges 3 on the left side of the trimming knife body 1 face the front of the trimming knife body 1, and the cutting edges of the two cutting edges 3 on the right side of the trimming knife body 1 face the back of the trimming knife body 1. In addition, in this embodiment, at the central position of the trimming knife body 1, two mounting holes are spaced apart along its length direction, namely mounting hole one 21 and mounting hole two 22, and both mounting hole one 21 and mounting hole two 22 are long strip holes.

[0037] Embodiment 3:

[0038] Referring to Figure 6As shown in the figure, Embodiment 3 of the present utility model provides a four - port edge - trimming knife for photovoltaic modules, including an edge - trimming knife body 1. Similar to Embodiment 1, the edge - trimming knife body 1 is a rectangular thin - blade body, having the same external dimensions as the edge - trimming knife body 1 in Embodiment 1, and the same number and orientation of cutting edges 3. The difference is that in this embodiment, the positions of the mounting holes are provided on the two long - side edges of the edge - trimming knife body 1. Specifically, two mounting holes III 23 are respectively opened on the left and right sides of the edge - trimming knife body 1. The mounting holes III 23 have openings facing the outside of the edge - trimming knife body 1, facilitating the entry of bolts during installation and the adjustment of the position of the edge - trimming knife in the width direction.

[0039] It should be understood that in practical applications, in order to increase the number of cutting edges 3, on the basis of this embodiment, the edge - trimming knife body 1 can extend towards one side in the length direction and increase the number of cutting edges 3. However, in practical applications, a larger number of cutting edges 3 requires an extension of the length of the edge - trimming knife body 1, which will also increase the material cost and is not convenient to use. Therefore, the four - port edge - trimming knife in this embodiment should be the optimal design solution, which can not only reduce costs but also be convenient to use.

[0040] The details not described in the present utility model are conventional technical means well - known to those skilled in the art.

[0041] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0042] The above - described embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model should fall within the protection scope determined by the claims of the present utility model.

Claims

1. A four-mouth edge cutting knife for photovoltaic modules, characterized in that: The invention comprises a thin trimming knife body (1), wherein two blades (3) are respectively arranged on the two side edges of the trimming knife body (1), the four blades (3) have the same size, are symmetrically positioned in pairs, and the blades of the two blades (3) on the same side face the same direction.

2. The four-mouth edge cutting knife for photovoltaic modules according to claim 1, characterized in that: The four blade edges (3) are oriented in the same direction, all facing the front side of the edge trimming knife body (1).

3. The four-mouth edge cutting knife for photovoltaic modules according to claim 1, characterized in that: The blades of the two blades (3) on the left side of the edge trimming knife body (1) face the front side of the edge trimming knife body (1), and the blades of the two blades (3) on the right side of the edge trimming knife body (1) face the back side of the edge trimming knife body (1).

4. The four-mouth edge cutting knife for photovoltaic modules according to claim 1, characterized in that: The thickness of the edge trimming knife body (1) is 2 mm.

5. The four-mouth edge trimming knife for photovoltaic modules according to claim 4, characterized in that: The opening width of the knife edge (3) is 11 mm, and the opening width of the blade is 8.5 mm.

6. The four-mouth edge trimming knife for photovoltaic modules according to claim 5, characterized in that: The inclination angle of the blade is 26°.

7. The four-mouth edge cutting knife for photovoltaic modules according to claim 4, characterized in that: The length of the trimming knife body (1) is 80 mm, the width is 30 mm, and the center distance between the two blades (3) on the same side is 64 mm.

8. The four-mouth edge cutting knife for photovoltaic modules according to claim 1, characterized in that: The trimming knife body (1) is also provided with a mounting hole for mounting the trimming knife body (1) on an trimming machine.

9. The four-mouth edge cutting knife for photovoltaic modules according to claim 8, characterized in that: The mounting hole is arranged at the center of the edge trimming knife body (1).

10. The four-mouth edge trimming knife for photovoltaic modules according to claim 9, characterized in that: The mounting hole is a long strip mounting hole (2).

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