Shearing device of film pasting assembly, film pasting assembly and film pasting machine

Abstract

The invention relates to a shearing device of a film pasting assembly, the film pasting assembly and a film pasting machine. The film pasting assembly comprises a maintaining part, a pressing wheel device and a feeding device in rigid connection with the maintaining part, the feeding device is used for conveying a film belt to the position below a pressing wheel of the pressing wheel device through the output end of the feeding device, and the film belt is provided with a first face without an adhesive and a second face with the adhesive. The shearing device is used for cutting off the film belt at a cutting-off part between the output end and the pressing wheel and comprises a driving part and a shearing part, and the shearing part comprises a first shearing sub-part arranged on one side of the first surface of the film belt at the cutting-off part and a second shearing sub-part arranged on one side of the second surface of the film belt at the cutting-off part; and the driving part can drive the first sub-shearing part to be close to or far away from the second sub-shearing part in the first linear movement direction, so that the film belt is cut off at the cutting-off part. The shearing device can be installed in a space-saving mode.

Description

Technical Field

[0001] The present application relates to a shearing device for a film laminating assembly, a film laminating assembly and a film laminating machine. Background Art

[0002] Solar cell modules (i.e. photovoltaic modules) generally include a glass layer, an EVA encapsulation layer, a silicon wafer and a solar cell back panel / glass. Unused areas within the module will cause waste of light sources. In order to reduce waste of light sources, reflective films are usually set in these areas. In order to set reflective films, it is known in the prior art to use a film laminating machine, which transports the reflective film tape to its film laminating module for film laminating. After the film laminating is completed, a shearing device is required to cut the film tape behind the pressing wheel for the next step.

[0003] A reflective film attaching mechanism is known from CN216918030U, whose shearing device is a scissors-like mechanism. This shearing device requires the scissors to be moved laterally to a shearing position when shearing, and to move back to the initial position when not shearing. This structure occupies a large amount of lateral installation space, which is not conducive to setting up multiple film attaching stations on the film attaching machine.

[0004] CN212934641U discloses a film-sticking device for photovoltaic cells. The shearing device of the film-sticking device is arranged at the bottom of the side of the mounting plate. The upper blade is driven by a cylinder to move downward to cut the film strip. The disadvantage of this structure is that the upper blade of the film-cutting device first contacts the hot melt adhesive on the back of the reflective film, and there is a risk of separation of the hot melt adhesive and the film. At the same time, the angle between the reflective film and the upper blade is small, and there is a risk that the reflective film will not be cut. Summary of the invention

[0005] Therefore, an object of the present invention is to provide a shearing device and a corresponding film laminating assembly, which at least partially solve the problems in the prior art.

[0006] According to a first aspect of the present application, a shearing device for a film sticking assembly is provided, the film sticking assembly comprising a holding portion, a pressure wheel device and a feeding device rigidly connected to the holding portion, the feeding device being used to transport a film tape via an output end of the feeding device to below a pressure wheel of the pressure wheel device, the film tape having a first surface without adhesive and a second surface with adhesive, the shearing device being used to cut the film tape at a cutting portion between the output end and the pressure wheel, the shearing device comprising a driving portion and a shearing portion, the shearing portion comprising a first sub-cutting portion disposed on a first surface side of the film tape at the cutting portion and a second sub-cutting portion disposed on a second surface side of the film tape at the cutting portion, the driving portion being capable of driving the first sub-cutting portion to reciprocate along a first linear motion direction toward and away from the second sub-cutting portion, thereby cutting the film tape at the cutting portion.

[0007] The advantages of the shearing device according to the present application are, on the one hand, that the driving portion of the shearing device drives the first sub-cutting portion to perform a cutting operation from the side of the film tape where no tape is provided, thereby avoiding the risk that the hot melt adhesive on the back of the reflective film is first contacted by the blade and thus causes the hot melt adhesive to separate from the film tape; on the other hand, unlike the scissors-type mechanism in the prior art that requires lateral movement, the driving portion of the shearing device according to the present application drives the first sub-cutting portion to perform a shearing movement along a linear first movement direction, forming a structure similar to a "guillotine", thereby not occupying excess lateral installation space, so that more film laminating devices can be arranged on the film laminating machine.

[0008] According to some embodiments of the present application, in the region of the cutting portion, the angle between the tape plane of the film tape and the first movement direction is 45° to 135°. More preferably, in the region of the cutting portion, the angle between the tape plane of the film tape and the first movement direction is 70° to 110°. By making the direction of the shearing movement form the above angle with the direction of the tape plane of the film tape, the efficiency of the cutting can be increased and the risk of the film tape not being cut can be avoided.

[0009] According to some embodiments of the present application, the movement direction of the actuating element of the driving portion is consistent with the first movement direction. According to some embodiments of the present application, the driving portion is configured as a cylinder device, and the actuating element is configured as a piston rod, and the axial direction of the piston rod is consistent with the first movement direction. By making the movement direction of the actuating element of the driving portion or the axial direction of the piston rod consistent with the first movement direction, it is possible to ensure that the driving force is transmitted along a straight path, thereby not occupying any additional lateral space. This structure can save lateral installation space to the greatest extent and can ensure the efficiency of force transmission. Preferably, in the case of being configured as a cylinder device, when viewed along the axial direction of the piston rod, the cylinder body, the piston rod and the first and second sub-shearing portions of the cylinder device at least partially overlap.

[0010] According to some embodiments of the present application, the holding portion includes a base plate and a mounting plate rigidly connected to the base plate, and the shearing device is fixed on a first side of the mounting plate. Providing an additional mounting plate on the base plate can provide a more flexible installation space for arranging the shearing device and optionally the pressure wheel device, and the mounting plate can be removed from the base plate together with the shearing device as a whole, thereby facilitating maintenance and replacement work. Of course, it is also feasible that the mounting plate is integrally formed with the base plate, that is, the mounting plate is formed as a part of the base plate.

[0011] According to some embodiments of the present application, the shearing device includes a sliding member, which is rigidly connected to the actuating element of the driving part and is slidably guided in the main body of the driving part. Preferably, the sliding member is constructed in an L-shape and has a first cantilever extending horizontally and a second cantilever extending vertically, the first cantilever is rigidly connected to the actuating element, and the second cantilever is slidably guided in the side wall of the main body of the driving part. By providing the sliding member, the actuating element of the driving part can be guided and force transmitted more smoothly when driving the first sub-shearing part, so that the shearing movement of the shearing device can be performed more accurately.

[0012] According to some embodiments of the present application, the shearing device further comprises an L-shaped first connecting member, the first connecting member comprising an upper cantilever extending horizontally and a lower cantilever extending vertically, the upper cantilever being rigidly connected to the first cantilever. The L-shaped first connecting member can, on the one hand, utilize its upper cantilever to reliably connect with the horizontal second cantilever of the sliding member, and on the other hand, utilize its lower cantilever extending vertically as a retaining portion for fixing the first sub-shearing portion.

[0013] According to some embodiments of the present application, a second connector is received in the gap between the upper cantilever and the lower cantilever of the first connector, the second connector is L-shaped and has a horizontally extending upper cantilever and a vertically extending lower cantilever, the upper cantilever of the second connector is rigidly connected to the upper cantilever of the first connector, and the first sub-shearing portion is fixed between the lower cantilever of the second connector and the lower cantilever of the first connector. The first sub-shearing portion can be firmly fixed between the first connector and the second connector by the L-shaped second connector that is rigidly connected to the first connector and the first sub-shearing portion, so that a stable cutting operation can be performed.

[0014] According to some embodiments of the present application, the shearing device is not provided with the above-mentioned rigidly connected second connecting member, but the first sub-shearing portion is constructed into an L-shape, and a protrusion is formed at the upper end of the vertically extending upper cantilever, and the protrusion is embedded in the corresponding recess in the first connecting member and can slide in the recess. Preferably, the first sub-shearing portion is connected to the first connecting member by a bolt, and an elastic member is arranged between the nut of the bolt and the first sub-shearing portion. Through this construction, that is, on the one hand, the protrusion of the first sub-shearing portion can slide relative to the first connecting member in the recess in the first connecting member, and on the other hand, an elastic member such as a spring is arranged between the first sub-shearing portion and the first connecting member, so that the first sub-shearing portion can be flexibly connected relative to the first connecting member, so that automatic gap compensation can be achieved during the cutting operation.

[0015] According to some embodiments of the present application, a first blade portion is formed on a horizontally extending lower cantilever of the first sub-shearing portion, and the first blade portion extends from a first side of the pressing wheel along the axial direction of the pressing wheel until it exceeds a second side of the pressing wheel opposite to the first side. According to some embodiments of the present application, the second sub-shearing portion is configured to be L-shaped, and a second blade portion is formed on a horizontally extending lower cantilever, and the second blade portion extends from a first side of the pressing wheel along the axial direction of the pressing wheel until it exceeds a second side of the pressing wheel opposite to the first side. Thus, viewed from a lateral direction, the blade portions of the first sub-shearing portion and the second sub-shearing portion overlap with the extension width of the pressing wheel at least within the width of the pressing wheel, thereby enabling a more compact spatial arrangement and ensuring that the film tape transported parallel to the pressing wheel can be smoothly cut.

[0016] According to some embodiments of the present application, a stopper is formed on a horizontally extending lower cantilever of the first sub-cutting portion, and the stopper can prevent the end of the film strip from bouncing up uncontrollably after being cut off.

[0017] According to some embodiments of the present application, the shearing device further comprises a retaining frame, which is rigidly connected to the second sub-shearing portion on the one hand, and rigidly connected to the main body of the driving portion on the other hand. Preferably, the retaining frame is U-shaped and has a main extension portion extending in an elongated shape, a first cantilever and a second cantilever, the first cantilever is rigidly connected to the second sub-shearing portion, the second cantilever is rigidly connected to the top surface of the main body of the driving portion, and the main extension portion of the retaining frame is rigidly connected to the side of the main body of the driving portion. By providing a retaining frame rigidly connected to the second sub-shearing portion and the driving portion, respectively, the entire shearing device forms a rigid whole, so that higher precision and adjustability can be achieved when performing shearing movements. At the same time, the shearing device can be integrally connected to or disassembled from the mounting plate to facilitate operations such as maintenance and replacement of parts. In addition, by constructing the retaining frame in the above-mentioned U-shaped structural form, the installation space of the entire shearing device can be further saved.

[0018] According to some embodiments of the present application, at least one first transverse gap adjustment member and / or at least one longitudinal gap adjustment member are provided between the retaining frame and the main body of the driving portion. According to some embodiments of the present application, at least one second transverse gap adjustment member is provided between the retaining frame and the second sub-cutting portion. According to some embodiments of the present application, at least one third transverse gap adjustment member is provided between the second connecting member and the first sub-cutting portion. Through the above-mentioned transverse and / or longitudinal gap adjustment members, the transverse and longitudinal gaps between the internal components of the shearing device can be adjusted, so that the cutting position and accuracy of the shearing device can be more conveniently debugged.

[0019] According to some embodiments of the present application, a heat insulating connection portion is provided on the first cantilever of the holder, and a heat insulating portion can be installed on the heat insulating connection portion. By providing the heat insulating portion on the holder of the shearing device, it is possible to prevent the hot air blown by the blowing device from affecting the normal operation of the driving part, such as the cylinder.

[0020] According to some embodiments of the present application, in the region of the cutting portion, an angle formed between the tape plane of the film tape and the first blade portion of the first sub-shearing portion is 3° to 10°, preferably 4° to 6°.

[0021] According to a second aspect of the present application, a film pasting assembly is provided, in particular, a film pasting assembly of a film pasting device of a film pasting machine for photovoltaic modules, wherein the film pasting assembly comprises a shearing device according to the present application.

[0022] According to some embodiments of the present application, the feeding device and the shearing device of the film sticking assembly are connected to the holding portion on the same side of the holding portion. Preferably, the feeding device of the film sticking assembly is directly fixed on the first side of the substrate, and the shearing device is fixed on the side of the mounting plate connected to the substrate that faces the same side as the first side of the substrate. According to some embodiments of the present application, the holding portion includes a mounting plate, the shearing device is connected to the first side of the mounting plate, and the pressure wheel device is connected to the second side of the mounting plate opposite to the first side. This construction method further reduces the space occupied by the film sticking assembly.

[0023] According to some embodiments of the present application, the film-sticking assembly is used to stick a film on a panel of a photovoltaic assembly.

[0024] According to a third aspect of the present application, a film laminating machine is provided, and the film laminating machine includes the film laminating assembly according to the present application.

[0025] According to some embodiments of the present application, the film laminating machine is used to apply film to the panel of a photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The exemplary embodiments of the present invention are explained in more detail below with reference to the accompanying drawings. In the drawings:

[0027] Figure 1 A schematic diagram showing a film laminating machine 100 according to the present invention is shown;

[0028] Figure 2 Show Figure 1 A schematic diagram of the internal structure of the film laminating machine 100;

[0029] Figure 3 A schematic diagram showing a film laminating device 51 of a film laminating machine 100;

[0030] Figure 4A perspective view showing a first side of the film assembly 1;

[0031] Figure 5 A perspective view showing a second side of the film assembly 1;

[0032] Figure 6 The specific structure of the shearing device 14 is shown, wherein the mounting plate 118 and a portion of the pressing wheel mechanism 13 are also shown;

[0033] Figure 7 A partial cross-sectional view taken from approximately the center of the shearing device cylinder is shown;

[0034] Figure 8 Shows Figure 7 Another embodiment in which the second connecting member 145 is omitted;

[0035] Fig. 9 shows a schematic cross-sectional view of a shearing device 14 according to the present application;

[0036] Fig.10 shows a schematic side view of the shearing device 14;

[0037] Fig.11 A perspective view showing the structure of the retaining frame 147 of the shearing device 14;

[0038] Fig.12 A partial detail of the insulation near the blowing device is shown. DETAILED DESCRIPTION

[0039] The following is a description of exemplary embodiments of the present application in conjunction with the accompanying drawings, including various details of the embodiments of the present application to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0040] Figure 1 FIG. 1 is a schematic diagram showing a film laminating machine 100 according to the present invention. Figure 1 It can be seen that the film laminating machine 100 includes a housing 10 , a frame 20 , an operation panel 30 with a display screen, a platform module 40 including at least one film laminating platform 41 , and a film laminating module 50 including at least one film laminating device 51 .

[0041] Figure 2The schematic diagram of the internal structure of the film laminating machine 100 without the housing 10 is shown. It can be seen that a plurality of film laminating devices 51 arranged side by side in the transverse direction of the machine are fixed on the crossbeam of the frame 20. When the film laminating operation is performed, the bottom of the film laminating device 51, that is, the position where the film strip is output, is slightly higher than the upper surface of the film laminating platform 41 in the vertical direction, and the film laminating platform 41 and the film laminating device 51 can move relative to each other in the longitudinal direction of the machine to perform the film laminating operation.

[0042] Figure 3 FIG. 5 is a schematic diagram showing a film sticking device 51 of a film sticking machine 100. Figure 3 It can be seen that the film laminating device 51 includes a support 519 extending in the vertical direction, and the support 519 is slidably connected to the crossbeam of the frame 20 of the film laminating machine so as to adjust its lateral position. Here, the support 519 is configured as a long plate-shaped member, but it should be understood that it can also be configured in other suitable shapes and structures. A material rack 518 is arranged above the support 519. In this embodiment, the material rack 518 is connected to the support 519, but it can also be considered that the material rack and the support are integrally formed, that is, the material rack 518 is a part of the support 519. A barrel 510 for storing and supplying a film tape 52 is provided on one side of the material rack 518. The film tape 52 is wound on the barrel 510 and can be transported from the barrel 510 to the next working position via at least one (three in this case) guide rollers 511. A material discharge drive 517 such as an electric motor is arranged on the side of the material rack 518 opposite to the barrel 510, and the material discharge drive 517 can drive the barrel to rotate to transport the film tape. In this case, the film strip 52 has a first side that is not provided with adhesive and a second side that is provided with adhesive, the adhesive being provided on the second side, for example, in the form of an adhesive film, in particular a hot-melt adhesive film.

[0043] Figure 3 The dotted box below shows the film sticking assembly 1 of the film sticking device 51 according to the present invention, and the film sticking assembly includes a holding portion 11, and the holding portion 11 includes a substrate 110, and the side edge of the substrate is connected to the support 519. In this embodiment, the substrate 110 has two first cantilever portions 112 and a second cantilever portion 113 extending upward at the side, so that a gap portion is formed between the two cantilevers, and the gap portion extends to the upper side of the substrate 110, so that the substrate is open to the upper side and has a U-shape as a whole, wherein the first cantilever portion 112 is away from the support 519 side relative to the second cantilever portion 113. Figure 4 An input guide wheel bracket 114 is provided on the first cantilever portion 112, and the guide wheel bracket extends upward beyond the upper end of the first cantilever portion 112, and a first guide wheel 115 is provided at the upper end of the guide wheel bracket 114, and the film tape 52 guided by the guide roller 511 enters the film laminating assembly 1 from the first guide wheel 115. A guide wheel mounting plate 111 is fixedly connected to the substrate 110, Figure 5 It can be seen that a plurality of second guide wheels 116 are arranged on the guide wheel mounting plate, and in this embodiment, there are four second guide wheels. A guide groove 117 is formed on the substrate below the lowermost second guide wheel 116, and the film tape guided by the second guide wheel passes through the guide groove 117 and enters the next working position.

[0044] Depend on Figure 3 It can also be seen that a blowing device 12 is provided below the holding portion 11, a pressing wheel device 13 is provided in front of the blowing device, and a shearing device 14 according to the present application is provided on the side of the pressing wheel device. In addition, a part of the feeding device 15 can also be seen in the figure. The specific structures of the above-mentioned blowing device, pressing wheel device, shearing device and feeding device will be described later.

[0045] Figure 4 and Figure 5 Perspective views of the structure of the film sticking assembly 1 are shown from different angles, wherein the blowing device 12 and other parts of the film sticking device 51, such as the support, the material rack, the material barrel, etc., are not shown for the sake of clarity. Figure 4 The first side of the film laminating assembly 1 is shown, and it can be seen that a feeding device 15 is fixed to this side by a connecting mechanism such as bolts. Figure 5 The second side of the film sticking assembly is shown, on which the second guide wheel 116 is arranged. Figure 4 and Figure 5 It can be seen that the feeding device 15 includes a clamping mechanism 151, a feeding mechanism 152, an input end 153 and an output end 154. In the initial position, the input end 153 is adjacent to the output end of the guide groove 117, and the output end 154 is spaced apart from the pressing wheel 131. Figure 4 It can also be seen that the holding portion 11 further includes a mounting plate 118, which is fixedly connected to an edge of the substrate 110 on a side away from the support 519, and on a first side (i.e. Figure 4 A shearing device 14 according to the present application is connected to the side of the slit facing the observer. Figure 5 It can be seen that the pressure wheel device 13 is connected to the second side of the mounting plate 118 opposite to the first side. Of course, it is also feasible that the holding portion 11 is not provided with the mounting plate, but the pressure wheel device 13 and the shearing device 14 are directly fixed to both sides of the base plate 110, or the mounting plate 118 can be constructed in one piece with the base plate 110, that is, the mounting plate 118 is constituted as a part of the base plate 110.

[0046] The exemplary working process of the film-attaching assembly 1 is as follows: first, the pressing wheel 131 of the pressing wheel device 13 is lifted upward, the clamping mechanism 151 of the feeding device 15 clamps the film strip 52, and the feeding mechanism 152 drives the film strip forward along the feeding direction until the end of the film strip is sent to the bottom of the pressing wheel 131. The pressing wheel mechanism drives the pressing wheel 131 to press the film strip against the object to be attached, such as the panel of the photovoltaic module, and the clamping mechanism 151 releases the film strip and the feeding mechanism 152 returns to the initial position. After that, the film-attaching assembly 1 and the panel of the photovoltaic module are relatively displaced. During this process, the blowing device 12 continuously blows hot air below the film strip, so that the adhesive on the second side of the film strip 52 provided with an adhesive (such as hot melt adhesive) melts, thereby completing the first stage of film attachment to the panel. After the first stage is completed, the clamping mechanism 151 clamps the film tape again, and then the shearing device 14 cuts the film tape. At this time, there is still a small section of the film tape between the bottom of the pressure wheel 131 and the cutting position, so the panel continues to be displaced relative to the film pasting assembly 11, and the small section of the film tape continues to be pasted on the edge of the panel, for example.

[0047] Figure 6 The specific structure of the shearing device 14 is shown, wherein in order to illustrate its installation position, the above-mentioned mounting plate 118 and a part of the pressing wheel mechanism 13 are also shown. Figure 7 A partial cross-sectional view taken from a cutting plane approximately at the transverse center of the shearing device cylinder is shown.

[0048] Depend on Figure 6 It can be seen that the shearing device includes a driving portion 141 and a shearing portion 142, and the shearing portion 142 includes a first sub-shearing portion 1421 and a second sub-shearing portion 1422. In this embodiment, the driving portion 141 is configured as a cylinder device, and the driving portion includes an actuating element 1411, such as a piston rod (see Fig. 9 ), the actuating element in this embodiment is arranged inside the main body 1412 of the driving part, especially inside the piston cylinder, and the actuating element 1411 can be driven along a linear first motion direction A (see Fig.10 ) reciprocating motion, wherein the first movement direction is preferably consistent with the axis B of the actuating element, especially the piston rod 1411.

[0049] In this embodiment, a sliding member 1413 constructed in an L shape is rigidly connected to the actuating element 1411, and the sliding member has a first cantilever 1413a and a second cantilever 1413b that are substantially perpendicular to each other. In the initial position of the driving portion, the first cantilever 1413a is preferably in contact with the bottom surface of the main body 1412, and the second cantilever 1413b can slide on a sliding guide portion 1412a of the main body 1412, which is preferably constructed as a sliding rail, in particular, along the first movement direction.

[0050] Depend on Figure 6 and Figure 7 It can be seen that the first connecting member 144 is fixedly connected to the bottom of the first cantilever 1413a of the sliding member 1413. Figure 7 The cross section shown is L-shaped, and a gap 1443 (by Figure 8 The upper cantilever 1441 of the first connecting member 144 is rigidly connected to the first cantilever 1413a of the sliding member 1413, for example, by means of a screw 144s.

[0051] exist Figure 6 and Figure 7 In the embodiment shown, a first connection hole 144a extending vertically downward to the gap 1443 is provided inside the upper cantilever 1441 of the first connection member 144. An L-shaped second connection member 145 is received in the gap, and the connection member has a horizontally extending upper cantilever 1451 and a vertically extending lower cantilever 1452, and the upper cantilever 1451 is connected to the upper cantilever 1441 of the first connection member by, for example, a pin 146, and for this purpose, a second connection hole 145a is provided in the upper cantilever 1451 of the second connection member, and the first connection hole 144a and the second connection hole 145a are aligned in the installed state and are used to accommodate the pin 146. In this embodiment, the first sub-shearing portion 1421 of the shearing device 14 is fixed between the lower cantilever 1452 of the second connection member 145 and the lower cantilever 1442 of the first connection member 144, for example, by bolts 22.

[0052] Replacement Figure 6 and Figure 7 In the implementation method, Figure 8 Shows Figure 7 Another embodiment in which the second connecting member 145 is omitted, it can be seen that the first sub-shearing portion 1421 is constructed to be substantially L-shaped, and a protrusion 1421v is formed on the vertically extending upper cantilever, and the protrusion is embedded in the corresponding recess in the first connecting member 144. In this embodiment, the first sub-shearing portion 1421 is connected to the first connecting member 144 by a bolt 22, and an elastic member, such as a spring 23, is provided between the nut of the bolt and the first sub-shearing portion 1421. In practice, when the first sub-shearing portion and the second sub-shearing portion are used for a certain period of time, wear will occur, and the gap will become larger, affecting the cutting effect. In this case, the elastic force of the elastic member can automatically push the first sub-shearing portion toward the second sub-shearing portion, and at this time, the protrusion 1421v slides in the corresponding recess, thereby realizing the flexible adjustment of the first sub-shearing portion in the recess along the axial direction of the bolt 22.

[0053] Depend on Figure 8 It can be further seen that a first blade portion 1421a is formed on the horizontally extending lower cantilever of the first sub-cutting portion 1421, and the extension length of the first blade portion in the horizontal direction is preferably greater than the width of the pressing wheel. Correspondingly, a second blade portion 1422a is formed on the horizontally extending lower cantilever of the second sub-cutting portion 1422, and the extension length of the second blade portion in the horizontal direction is preferably greater than the width of the pressing wheel. In the initial state before cutting, the first sub-cutting portion 1421 and the second sub-cutting portion 1422 are respectively located on both sides of the film strip 52 to be cut, specifically, the first sub-cutting portion 1421 is located near the first side of the film strip 52 where no adhesive is provided, and the second sub-cutting portion is located near the second side of the film strip 52 where adhesive is provided.

[0054] During the cutting operation, the driving part 141 drives its actuating element 1411 and thus drives the sliding member 1413 rigidly connected to the actuating element 1411 to move linearly along the first movement direction A, and thereby drives the first sub-cutting portion 1421 rigidly connected to the sliding member 1413 via the first connecting member 144 (and optionally the second connecting member 145) to move toward the second sub-cutting portion along the first movement direction, thereby cutting the film strip 52 at the cutting position between the pressing wheel 131 and the output portion 154 of the feeding mechanism 15. In order to prevent the end of the film strip near the first sub-cutting portion from bouncing up uncontrollably after the film strip is cut, a stopper 1421b is provided on the first sub-cutting portion 1421, and the stopper can be configured as a convex block or other suitable structure protruding outward perpendicular to the cutting plane.

[0055] Here, the first blade portion 1421a preferably forms a certain inclination angle with the tape plane of the film tape during the cutting operation, for example Figure 8 The dotted line in the figure indicates the tape plane of the film tape in the cutting area, and it can be seen that a small angle is formed between the first blade portion 1421a and the tape plane, and the angle is 3° to 10°, preferably 4° to 6°. With the above angle, the blade portion and the film tape first make point contact during cutting, thereby achieving a better cutting effect.

[0056] In addition, Figure 7 , Figure 8 and Fig. 9It can be seen that the shearing device 14 further includes a retaining frame 147, which preferably extends in the entire length direction of the driving portion 141, the shearing portion 142, the first connecting member 144, and the second connecting member 145, and the retaining frame 147 is rigidly connected to the second sub-shearing portion via a connecting member such as a screw on one hand, and is rigidly connected to the main body 1412 of the driving portion 141 on the other hand, preferably rigidly connected to the main body 1412 at the top surface and the side surface thereof. In the embodiment shown in the figure, the retaining frame 147 is connected to the main body 1412 via an L-shaped third connecting member 148 (see Fig. 9 ) are rigidly connected to the top and side surfaces of the main body 1412, respectively. Here, the third connecting member 148 can protect the driving unit 141. However, it is self-evident that the retaining frame 147 can also omit the third connecting member 148 and be directly connected to the main body 1412.

[0057] refer to Fig.11 In this embodiment, the holder 147 is constructed in a substantially U-shaped shape, wherein the bottom side of the "U-shape", i.e., the long main extension portion 1471, extends in the main extension direction of the driving portion 141, the first connecting member 144, the second connecting member 145 and the shearing portion 142, i.e., the first movement direction A mentioned above, and the first cantilever 1472 of the two cantilevers of the "U-shape" is rigidly connected to the second sub-shearing portion 1422, and the second cantilever 1473 is rigidly connected to the top surface of the main body 1412 of the driving portion 141. Of course, the holder 147 can also be constructed in other forms, as long as it is rigidly connected to the second sub-shearing portion 1422 and the driving portion 141, respectively. By providing the holder 147 rigidly connected to the second sub-shearing portion and the driving portion, respectively, the entire shearing device 14 forms a rigid whole, so that higher precision and adjustability can be achieved when performing shearing movement. At the same time, the shearing device can be integrally connected to or disassembled from the mounting plate 118 to facilitate maintenance and replacement of parts and the like.

[0058] Fig. 9 A schematic cross-sectional view of the shearing device 14 according to the present application is shown. It can be seen from the figure that the retaining frame 147 and the main body 1412 of the driving portion 141 are connected by connecting members such as screws. In addition, at least one transverse gap adjustment member 149a and at least one longitudinal gap adjustment member 149b are provided between the retaining frame and the main body. In this embodiment, the transverse gap adjustment member 149a and the longitudinal gap adjustment member 149b are constructed as top screws, and the top screws are accommodated in corresponding holes of the retaining frame 147. In addition, it can be seen that at least one transverse gap adjustment member 149c is also provided between the retaining frame 147 and the second sub-shearing portion 2, which is also constructed as a top screw here, and the top screw is accommodated in corresponding holes of the retaining frame 147. In addition, Figure 7 and Fig. 9It can be seen that there is also at least one transverse gap adjustment member 149d between the second connecting member and the first shearing portion 1421, which is also configured as a top screw, and the top screw is accommodated in a corresponding hole of the second connecting member 145. Through each gap adjustment member, the transverse and longitudinal positions of the shearing portion and the driving portion can be adjusted to achieve debugging of the shearing device and thereby achieve higher shearing accuracy.

[0059] Fig.10 A schematic side view of a shearing device 14 is shown, comprising Fig.10 It can be seen that the film strip 52 extends between the output portion 154 of the feeding device and the pressing wheel 131. At the cutting position in this area, the first sub-cutting portion 1421 is driven by the driving portion 141 to move along the first movement direction A toward the second sub-cutting portion 1422 and thereby cuts the film strip 52. Here, the first movement direction A forms an angle α with the strip plane of the film strip 52. In order to achieve a better cutting effect, the angle α is 45° to 135°, preferably 70° to 110°.

[0060] Fig.11 The structure of the retaining frame 147 of the shearing device 14 is shown. Fig.12 It is shown that a heat insulating connecting portion 1474 is provided on the side of the first cantilever 1472 of the retaining frame connected to the second sub-shearing portion 1422, and a heat insulating portion 1475 can be fixedly connected to the heat insulating connecting portion. The heat insulating portion 1475 is located above the blowing port of the blowing device 12 and is used to block the upward flow of hot air, thereby not only improving the efficiency of hot air use, but also preventing the hot air from causing the electromagnetic valve of the cylinder of the shearing device or the pressure wheel device to fail.

[0061] The technical solution of the present application is explained above with exemplary preferred implementation modes. It should be noted that the above implementation modes are only used to illustrate the technical solution of the present application, rather than to limit it; although the present application is described in detail with reference to the aforementioned implementation modes, a person of ordinary skill in the art should understand that: it is still possible to modify the technical solutions described in the aforementioned implementation modes, or to replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various implementation modes of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each implementation mode can be combined in any way. The present application is not limited to the specific implementation modes disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A shearing device (14) of a film-sticking assembly (1), the film-sticking assembly being used for applying film to a panel of a photovoltaic assembly and comprising a holding portion (11), a pressure wheel device (13) and a feeding device (15) rigidly connected to the holding portion, the feeding device being used for conveying a film tape (52) to below a pressure wheel (131) of the pressure wheel device via an output end (154) of the feeding device, the film tape having a first surface without adhesive and a second surface with adhesive, the shearing device being used for cutting the film tape at a cutting position between the output end and the pressure wheel, characterized in that The shearing device includes a driving part (141) and a shearing part (142), wherein the shearing part includes a first sub-shearing part (1421) arranged on the first side of the film tape at the cutting position and a second sub-shearing part (1422) arranged on the second side of the film tape at the cutting position, and the driving part can drive the first sub-shearing part to approach and move away from the second sub-shearing part along a linear first movement direction (A).

2. The shearing device according to claim 1, characterized in that In the region of the severing point, an angle (α) between the strip plane of the film strip and the first direction of movement (A) is 45° to 135°.

3. The shearing device according to claim 2, characterized in that In the region of the severing point, an angle (α) between the strip plane of the film strip and the first direction of movement (A) is 70° to 110°.

4. The shearing device according to any one of claims 1 to 3, characterized in that The movement direction of the actuating element (1411) of the driving unit is consistent with the first movement direction (A).

5. The shearing device according to claim 4, characterized in that The driving part is configured as a cylinder device, and the actuating element (1411) is configured as a piston rod, the axial direction of the piston rod is consistent with the first movement direction (A).

6. The shearing device according to any one of claims 1 to 3, characterized in that The holding portion (11) comprises a base plate (110) and a mounting plate (118) rigidly connected to the base plate, and the shearing device (14) is fixed on a first side of the mounting plate.

7. The shearing device according to any one of claims 1 to 3, characterized in that The shearing device comprises a slide (1413) which is rigidly connected to the actuating element (1411) of the drive part and is slidably guided in the body (1412) of the drive part.

8. The shearing device according to claim 7, characterized in that The sliding member (1413) is constructed in an L-shape and has a first cantilever (1413a) extending horizontally and a second cantilever (1413b) extending vertically, wherein the first cantilever is rigidly connected to the actuating element and the second cantilever is slidably guided in the side wall of the main body of the driving part.

9. The shearing device according to claim 8, characterized in that The shearing device further comprises an L-shaped first connecting member (144), the first connecting member comprising a horizontally extending upper cantilever (1441) and a vertically extending lower cantilever (1442), the upper cantilever being rigidly connected to the first cantilever (1413a).

10. The shearing device according to claim 9, characterized in that A second connecting member (145) is accommodated in the gap between the upper cantilever (1441) and the lower cantilever (1442) of the first connecting member. The second connecting member is L-shaped and has a horizontally extending upper cantilever (1451) and a vertically extending lower cantilever (1452). The upper cantilever (1451) of the second connecting member is rigidly connected to the upper cantilever (1441) of the first connecting member, and the first sub-shear portion (1421) is fixed between the lower cantilever (1452) of the second connecting member and the lower cantilever (1442) of the first connecting member.

11. The shearing device according to claim 9, characterized in that The first sub-shearing portion (1421) is constructed in an L-shape, and a protrusion (1421v) is formed at the upper end of its vertically extending upper cantilever, and the protrusion is embedded in a corresponding recess in the first connecting member (144) and can slide in the recess.

12. The shearing device according to claim 11, characterized in that The first sub-shearing portion (1421) is connected to the first connecting member (144) via a bolt (22), and an elastic member (23) is provided between the nut of the bolt and the first sub-shearing portion.

13. The shearing device according to claim 12, characterized in that A first blade portion (1421a) is formed on a horizontally extending lower cantilever of the first sub-shearing portion (1421), and the first blade portion (1421a) extends along the axial direction of the pressing wheel (131) from a first side of the pressing wheel to beyond a second side of the pressing wheel opposite to the first side. The second sub-shearing portion (1422) is configured to be L-shaped, and a second blade portion (1422a) is formed on a horizontally extending lower cantilever, and the second blade portion (1422a) extends along the axial direction of the pressing wheel (131) from a first side of the pressing wheel to beyond a second side of the pressing wheel opposite to the first side.

14. The shearing device according to claim 13, characterized in that A material stopping portion (1421b) for stopping the film tape from bouncing up is formed on the horizontally extending lower cantilever of the first sub-shearing portion (1421).

15. The shearing device according to claim 13 or 14, characterized in that The shearing device further comprises a retaining frame (147), which is rigidly connected to the second sub-shearing portion (1422) on the one hand, and rigidly connected to the main body (1412) of the driving portion on the other hand.

16. The shearing device according to claim 15, characterized in that The retaining frame is U-shaped and has an elongated main extension portion (1471), a first cantilever (1472) and a second cantilever (1473), the first cantilever is rigidly connected to the second sub-shear portion (1422), the second cantilever is rigidly connected to the top surface of the main body portion (1412) of the driving portion, and the main extension portion (1471) of the retaining frame is rigidly connected to the side of the main body portion (1412) of the driving portion.

17. The shearing device according to claim 16, characterized in that At least one first lateral gap adjustment member (149a) and / or at least one longitudinal gap adjustment member (149b) is provided between the retaining frame and the main body (1412) of the driving portion; and / or at least one second lateral gap adjustment member (149c) is provided between the retaining frame and the second sub-shearing portion (1422); and / or at least one third lateral gap adjustment member (149d) is provided between the second connecting member (145) and the first sub-shearing portion (1421).

18. The shearing device according to claim 16, characterized in that A heat-insulating connecting portion (1474) is provided on the first cantilever (1472) of the retaining frame, and a heat-insulating portion (1475) can be installed on the heat-insulating connecting portion.

19. The shearing device according to claim 13 or 14, characterized in that In the area of ​​the cutting portion, an angle formed between the tape plane of the film tape and the first blade portion (1421a) of the first sub-cutting portion (1421) is 3° to 10°.

20. The shearing device according to claim 19, characterized in that In the area of ​​the cutting portion, the angle formed between the tape plane of the film tape and the first blade portion (1421a) of the first sub-cutting portion (1421) is 4° to 6°.

21. A film sticking assembly (1), characterized in that: The film application assembly comprises a shearing device according to any one of claims 1 to 20.

22. The film sticking assembly according to claim 21, characterized in that: The feeding device (15) and the shearing device (14) are connected to the holding portion on the same side of the holding portion (11).

23. The film sticking assembly according to claim 22, characterized in that: The holding portion comprises a mounting plate (118), the shearing device (14) is connected to a first side of the mounting plate, and the pressure wheel is connected to a second side of the mounting plate opposite to the first side.

24. A film laminating machine (100), characterized in that: The film laminating machine comprises a film laminating assembly according to any one of claims 21 to 23.

Images