Photovoltaic backboard film cutting device

Abstract

The utility model discloses a photovoltaic backboard film cutting device, which relates to the technical field of photovoltaic panel processing, and comprises a punching base plate and a punching mechanism with a punching knife, and further comprises an anti-sticking plate and a separating roller, the anti-sticking plate is vertically arranged on one side of the punching knife in a sliding manner through a relative sliding connecting assembly, and the anti-sticking plate is connected with the separating roller before the punching knife is in contact with a film. The bottom of the anti-sticking plate is provided with a special-shaped suction cup used for sucking the thin film so as to ensure that the front end of the belt-shaped thin film obtained after punching can be separated from the punching base plate, the two ends of the anti-sticking plate are each rotationally provided with a rocker arm, and the separating roller is connected with the rocker arms at the two ends. The separating roller rotates towards the lower portion of the lower special-shaped suction cup under the action of external force or gravity, so that the strip-shaped thin film is separated from the special-shaped suction cup, and the situation that the front end of the cut strip-shaped thin film adheres to and is adsorbed to the punching base plate, and consequently the strip-shaped thin film is folded in the follow-up conveying process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic panel processing, in particular to a photovoltaic back panel film cutting device. Background Art

[0002] The photovoltaic panel backplane film is a thin film on the solar aluminum frame. It is usually white or translucent, 20-25um thick, and can be fluorinated or non-fluorinated. It mainly plays the role of waterproofing and isolation.

[0003] Photovoltaic backsheet film is usually cut by reciprocating blade sliding. The reason why the more efficient punching method is generally not used is that the photovoltaic backsheet film is very thin and light. When punching, it usually needs the assistance of a backing plate. The punching knife punches from the end of the backing plate and cooperates with the backing plate to cut in a shearing manner. However, the photovoltaic backsheet film will be adsorbed by the backing plate due to negative pressure and static electricity, and the punching part of the photovoltaic backsheet film is prone to adhesion with the backing plate and the punching knife under pressure, which causes the strip film output from the film roll to fold easily during the transportation process after punching, causing inconvenience to the subsequent processing of the photovoltaic panel. Utility Model Content

[0004] The utility model aims to provide a photovoltaic back sheet film cutting device to solve the above technical problems.

[0005] Based on the above purpose, the utility model provides a photovoltaic back sheet film cutting device, including a punching pad and a punching knife, and also includes an anti-sticking plate and a separation roller, wherein the anti-sticking plate is vertically slidably arranged on one side of the punching knife through a relative sliding connection assembly;

[0006] The anti-sticking plate cooperates with the punching pad to press the film before the punching knife contacts the film, and a special-shaped suction cup for adsorbing the film is provided at the bottom of the anti-sticking plate;

[0007] Rockers are rotatably provided at both ends of the anti-sticking plate, and the separation roller is connected to the rockers at both ends. The rockers are connected to an upward swing driving assembly to drive the separation roller to separate the film from the special-shaped suction cup and then move to the side of the anti-sticking plate.

[0008] Furthermore, the sliding connection assembly includes a T-shaped slider and a booster spring, the T-shaped slider is vertically arranged on the side of the punching knife, the side of the anti-sticking plate is provided with a T-shaped slide groove matching the T-shaped slider, the booster spring is arranged between the bottom of the T-shaped slider and the wall of the T-shaped slide groove, the T-shaped slide groove passes through the top of the anti-sticking plate, and the top of the anti-sticking plate is provided with a top plate that closes the T-shaped slide groove.

[0009] Furthermore, the upper swing drive assembly includes a radial connecting rod and a push rod, the radial connecting rod is arranged at one end of the rocker arm away from the separation roller and is arranged radially along the rotation axis of the rocker arm, one end of the push rod is arranged on the punching pad, and the other end of the push rod is bent and located below the radial connecting rod.

[0010] Furthermore, a torsion spring connecting the anti-sticking plate and the rocker arm is provided at the end of the anti-sticking plate to help the separation roller separate the film from the special-shaped suction cup.

[0011] Furthermore, a limiting column is provided at the end of the anti-sticking plate, and the radial connecting rod abuts against the limiting column when the separation roller is reset.

[0012] Furthermore, the special-shaped suction cup is in the shape of a strip with a plurality of shallow grooves at the bottom, and a plurality of flat holes connected to the shallow grooves are arranged on the side of the special-shaped suction cup, and the flat holes are closed when the bottom of the special-shaped suction cup is squeezed.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides an anti-sticking plate capable of vertically sliding relative to the punching knife at one side thereof, and provides a special-shaped suction cup at the bottom of the anti-sticking plate, so as to ensure that the front end of the punched film strip is separated from the punching pad; when the negative pressure suction cup is raised, the separation roller rotates downwardly under the special-shaped suction cup under the action of external force or gravity, so that the film strip is separated from the special-shaped suction cup, thereby preventing the front end of the cut film strip from being adhered to and adsorbed to the punching pad, thereby preventing the film strip from being folded during the subsequent conveying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 Partial detail of point A in the middle;

[0018] Figure 3 for Figure 1 Side view of

[0019] Figure 4 This is a schematic structural diagram of the anti-sticking plate of the utility model;

[0020] Figure 5 for Figure 4 The main view of

[0021] Figure 6 for Figure 4 Partial detail of point B in the middle;

[0022] Figure 7 It is a structural schematic diagram of the punching knife of the utility model;

[0023] Figure 8 It is a partial detailed view of the special-shaped suction cup of the utility model.

[0024] The numbers in the figure are:

[0025] 1-punching pad; 2-punching knife; 3-anti-sticking plate; 4-separation roller; 5-sliding connection assembly; 6-special-shaped suction cup; 7-rocker arm; 8-upward swing drive assembly; 9-T-shaped slide; 10-top plate; 11-torsion spring; 12-limiting stop; 13-shallow groove; 14-flat hole;

[0026] 501-T-shaped slider; 502-boosting spring;

[0027] 801- radial connecting rod; 802- top rod. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] like Figures 1 to 8 As shown, a photovoltaic back sheet film cutting device comprises a punching pad 1 and a punching knife 2, and also comprises an anti-sticking plate 3 and a separation roller 4. The anti-sticking plate 3 is arranged on one side of the punching knife 2 through a relative sliding connection component 5, so that the anti-sticking plate 3 can move relative to the punching knife 2 in the vertical direction;

[0030] Before the punching blade 2 contacts the film, the anti-adhesion plate 3 relies on its own gravity to cooperate with the punching pad 1 to press the film, that is, when the punching blade 2 and the anti-adhesion plate 3 are in the initial position, the horizontal plane where the bottom of the anti-adhesion plate 3 is located is below the horizontal plane where the bottom of the punching blade 2 is located. In addition, a special-shaped suction cup 6 for adsorbing the film is provided at the bottom of the anti-adhesion plate 3, so that when the anti-adhesion plate 3 is reset with the punching blade 2, the front end of the uncut film can be lifted up with the help of the special-shaped suction cup 6, so as to prevent the film from being adsorbed by the punching pad 1 due to the static electricity and negative pressure between the film and the punching pad 1, thereby causing the front end of the film to fold as the film is transported.

[0031] In addition, rocker arms 7 are rotatably provided at both ends of the anti-sticking plate 3, and the separation roller 4 is connected to the rocker arms 7 at both ends. The rocker arms 7 are connected to an upper swing drive assembly 8 to drive the separation roller 4 to separate the film from the special-shaped suction cup 6 and then move to the side of the anti-sticking plate 3, thereby preventing the separation roller 4 from affecting the pressure of the anti-sticking plate 3 on the film.

[0032] Specifically, when punching, the anti-adhesive plate 3 descends with the punching blade 2. When the anti-adhesive plate 3 cooperates with the punching pad 1 to press the film, the punching blade 2 can continue to descend because the anti-adhesive plate 3 is connected to the punching blade 2 through the sliding connection assembly 5, and thus the punching blade 2 punches the film close to the front end of the punching pad 1. When the punching blade 2 is reset upward and reaches the position linked with the anti-adhesive plate 3, the anti-adhesive plate 3 rises with the punching blade 2, and the front end of the strip film is separated from the punching pad 1 by means of the special-shaped suction cup 6. Subsequently, the separation roller 4 rotates to the bottom of the special-shaped suction cup 6 under the action of the rocker arm 7 and its own gravity, so that the film is separated from the special-shaped suction cup 6 and falls on the punching pad 1 for subsequent transportation and cutting.

[0033] The utility model provides an anti-sticking plate 3 capable of vertically sliding relative to the punching knife 2 on one side thereof, and provides a special-shaped suction cup 6 at the bottom of the anti-sticking plate 3 to ensure that the front end of the punched film strip is separated from the punching pad 1. When the negative pressure suction cup is raised, the upper swing driving component 8 drives or releases the rocker arm 7 to drive the separation roller 4 to rotate under the lower special-shaped suction cup 6 under the action of external force or gravity, so that the film strip is separated from the special-shaped suction cup 6 and the film strip is transported again, thereby avoiding the front end of the cut film strip from being adhered to and adsorbed to the punching pad 1, which causes the film strip to be folded during the subsequent transportation process.

[0034] The sliding connection assembly 5 includes a T-shaped slider 501 and a pressure-boosting spring 502. The T-shaped slider 501 is vertically arranged on the side of the punching knife 2 by welding, bolting, etc. The side of the anti-sticking plate 3 is provided with a T-shaped slide 9 matched with the T-shaped slider 501. The pressure-boosting spring 502 is arranged between the bottom of the T-shaped slider 501 and the groove wall of the T-shaped slide 9. The T-shaped slide 9 runs through the top of the anti-sticking plate 3. The top of the anti-sticking plate 3 is provided with a top plate 10 that closes the T-shaped slide 9. In addition, the provision of the pressure-boosting spring 502 increases the pressure of the special-shaped suction cup 6 on the film, so as to facilitate the discharge of air in the special-shaped suction cup 6.

[0035] Among them, the upper swing drive assembly 8 includes a radial connecting rod 801 and a push rod 802. The radial connecting rod 801 is arranged at the end of the rocker arm 7 away from the separation roller 4 and is arranged radially along the rotation axis of the rocker arm 7. One end of the push rod 802 is arranged on the punching pad 1, and the other end of the push rod 802 is bent and located below the radial connecting rod 801.

[0036] The push rod 802 is used to push the rocker arm 7 to rotate with the help of the radial connecting rod 801 when the anti-sticking plate 3 descends, so that the separation roller 4 located below the special-shaped suction cup 6 rotates to the side of the anti-sticking plate 3 to avoid affecting the adsorption of the special-shaped suction cup 6 on the film.

[0037] Further optimization of the above embodiment is that the end of the anti-sticking plate 3 is provided with a torsion spring 11 connecting the anti-sticking plate 3 and the rocker arm 7, so as to help the separation roller 4 to separate the film from the special-shaped suction cup 6, so as to solve the problem that the separation roller 4 needs to rely on the power generated by its own weight and the rocker arm 7 to separate the special-shaped suction cup 6 and the film, which has a poor reliability, and is conducive to the miniaturization of the separation roller 4, so as to facilitate the peeling of the film. In addition, a limit column 12 is provided at the end of the anti-sticking plate 3, and the radial connecting rod 801 abuts against the limit column 12 when the separation roller 4 (when resetting, that is, when the separation roller 4 separates the film from the special-shaped suction cup 6), thereby preventing the separation roller 4 from shaking and colliding with the punching knife 2 in front.

[0038] What is further optimized in the above embodiment is that the special-shaped suction cup 6 is in the shape of a strip with a plurality of shallow grooves 13 at the bottom, and a plurality of flat holes 14 connected to the shallow grooves 13 are arranged on the side of the special-shaped suction cup 6. The flat holes 14 are closed when the bottom of the special-shaped suction cup 6 is squeezed, so that the shallow grooves 13 are automatically closed after the bottom of the special-shaped suction cup 6 is squeezed and part of the air is discharged.

[0039] A further optimization of the above embodiment is that the top rod 802 is connected to a grounded electrostatic wire, and the separation roller 4, the rocker arm 7, the radial connecting rod 801 and the top rod 802 are all made of copper alloy to facilitate the discharge of static electricity.

[0040] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A photovoltaic back sheet film cutting device, comprising a punching pad (1) and a punching knife (2), It is characterized in that It also includes an anti-sticking plate (3) and a separation roller (4), wherein the anti-sticking plate (3) is vertically slidably arranged on one side of the punching knife (2) via a relative sliding connection component (5); The anti-sticking plate (3) cooperates with the punching pad (1) to press the film before the punching knife (2) contacts the film, and a special-shaped suction cup (6) is provided at the bottom of the anti-sticking plate (3); Rockers (7) are rotatably provided at both ends of the anti-sticking plate (3), the separation roller (4) is connected to the rockers (7) at both ends, and the rockers (7) are connected to an upward swing drive assembly (8) to drive the separation roller (4) to separate the film from the special-shaped suction cup (6) and then move to the side of the anti-sticking plate (3).

2. A photovoltaic backsheet film cutting device according to claim 1, It is characterized in that The sliding connection assembly (5) comprises a T-shaped slider (501) and a pressure-boosting spring (502); the T-shaped slider (501) is arranged vertically on the side of the punching knife (2); the side of the anti-sticking plate (3) is provided with a T-shaped slide groove (9) matching with the T-shaped slider (501); the pressure-boosting spring (502) is arranged between the bottom of the T-shaped slider (501) and the groove wall of the T-shaped slide groove (9); the T-shaped slide groove (9) passes through the top of the anti-sticking plate (3); and the top of the anti-sticking plate (3) is provided with a top plate (10) closing the T-shaped slide groove (9).

3. A photovoltaic backsheet film cutting device according to claim 1, It is characterized in that The upward swing drive assembly (8) comprises a radial connecting rod (801) and a push rod (802); the radial connecting rod (801) is arranged at one end of the rocker arm (7) away from the separation roller (4) and is arranged radially along the rotation axis of the rocker arm (7); one end of the push rod (802) is arranged on the punching pad (1); and the other end of the push rod (802) is bent and located below the radial connecting rod (801).

4. A photovoltaic backsheet film cutting device according to claim 1, It is characterized in that The end of the anti-sticking plate (3) is provided with a torsion spring (11) connecting the anti-sticking plate (3) and the rocker arm (7) to help the separation roller (4) separate the film from the special-shaped suction cup (6).

5. The photovoltaic back sheet film cutting device according to claim 3, It is characterized in that A limiting column (12) is provided at the end of the anti-sticking plate (3), and the radial connecting rod (801) abuts against the limiting column (12) when the separation roller (4) is reset.

6. The photovoltaic backsheet film cutting device according to claim 1, It is characterized in that The special-shaped suction cup (6) is in the shape of a strip with a plurality of shallow grooves (13) arranged at the bottom, and a plurality of flat holes (14) communicating with the shallow grooves (13) are arranged on the side of the special-shaped suction cup (6), wherein the flat holes (14) are closed when the bottom of the special-shaped suction cup (6) is squeezed.

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