Film sticking machine for photovoltaic module

Abstract

The invention relates to a film sticking machine for a photovoltaic module, and the film sticking machine comprises a rack (20), a platform module (40) which comprises at least one film sticking platform (41), and a film sticking module (50) which comprises at least one film sticking device (51), the machine frame (20) comprises a film pasting module maintaining part (21) used for maintaining the film pasting module and a platform module maintaining part (22) used for maintaining the platform module, and the platform module maintaining part is located below the film pasting module maintaining part. The platform module holding part (22) comprises a first support (221) fixedly connected with the platform module (40) and a second support (222) located below the first support (221), and the first support can ascend and descend relative to the second support. According to the film sticking machine, stable film sticking operation can be achieved while space is saved.

Description

Technical Field

[0001] The present application relates to a film laminating machine for photovoltaic modules. 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 the reflective film, it is known in the prior art to use a film laminating machine, which conveys the reflective film belt to its film laminating assembly for film laminating. Each film laminating machine generally includes a plurality of film laminating devices, and the plurality of film laminating devices are, for example, arranged side by side on the crossbeam of the film laminating machine frame. In practice, the panel of the photovoltaic module needs to be attached with a plurality of, for example, 5 equally spaced reflective films along its width direction, and a plurality of, for example, 24 equally spaced reflective films along the length direction, and the spacing of the reflective films in the length direction is, for example, set to 90 mm. In the prior art, due to limitations such as space for manual material replacement, the plurality of reflective films in the length direction are usually attached in at least two devices. Taking the attachment of 24 reflective films with a spacing of 90 mm as an example, two devices set up in sequence are usually used to adhere 12 reflective films with a spacing of 180 mm respectively, and the film attachment positions of the two devices are staggered by 90 mm in the length direction.

[0003] In order to improve the efficiency of film pasting, it is expected that more, for example, 24 film pasting devices are integrated into one device. These 24 film pasting devices are arranged side by side on the crossbeam and form a film pasting module of the film pasting machine. The spacing between adjacent film pasting devices is 90 mm. In the prior art, a film pasting assembly including a plurality of film pasting devices arranged side by side is moved relative to a platform portion carrying a photovoltaic module panel to complete the film pasting operation. This requires that the film pasting assembly be equipped with a corresponding drive device for the relative movement. Such relative movement may cause a slight displacement of the film pasting device and affect the accuracy of the film pasting. In addition, when completing the film pasting operation, the film pasting device needs to be lifted and lowered, which in turn requires the configuration of a corresponding lifting assembly. Such a lifting assembly is usually arranged on the side of the film pasting assembly and occupies additional installation space. Therefore, the need to integrate more film pasting devices in one device poses a challenge to the installation size of the film pasting machine and the stability of the film pasting. Summary of the invention

[0004] Therefore, an object of the present application is to provide a film laminating machine for photovoltaic modules, which at least partially solves the problems in the prior art.

[0005] According to a first aspect of the present application, a film pasting machine for photovoltaic modules is provided, the film pasting machine comprising a frame, a platform module comprising at least one film pasting platform, and a film pasting module comprising at least one film pasting device, wherein the frame comprises a film pasting module holding portion for holding the film pasting module and a platform module holding portion for holding the platform module, the platform module holding portion is located below the film pasting module holding portion, wherein the platform module holding portion comprises a first bracket fixedly connected to the platform module and a second bracket located below the first bracket, the first bracket being constructed to be liftable relative to the second bracket.

[0006] This technical solution designs the film-sticking platform that supports the panel of the photovoltaic module to be liftable. During the film-sticking operation, only the film-sticking platform needs to be lifted to keep the film-sticking device static, providing a more stable film-sticking and a structure that is easier to maintain and debug. At the same time, since the structure for lifting the film-sticking device is omitted, installation space is also saved.

[0007] In some embodiments of the present application, the first bracket is fixedly connected to the platform module via at least one first connecting member, and the second bracket is connected to the first bracket via at least one retractable second connecting member.

[0008] In some embodiments of the present application, the frame includes a second rail extending in the longitudinal direction of the film laminating machine, and the second bracket is movably guided on the second rail. Here, the longitudinal direction of the film laminating machine is the film laminating direction of the film laminating operation, and as the second bracket moves on the second rail, the panel of the photovoltaic module is driven to move relative to the film laminating device, thereby completing the film laminating operation.

[0009] In some embodiments of the present application, the frame includes a first guide rail extending in the longitudinal direction of the film laminating machine, and the film laminating module holding portion is movably guided on the first guide rail. Here, the purpose of providing the first guide rail is only to maintain and debug the film laminating device, and the film laminating device remains stationary during the film laminating operation.

[0010] Preferably, the film sticking module holding part is configured to fixedly hold the film sticking module in the height direction. As described above, the film sticking machine according to the present application can perform film sticking operation while the film sticking module remains stationary by enabling the platform module to be lifted and moved.

[0011] In some embodiments of the present application, at least one obliquely extending front support is provided at the front of the film sticking module holding portion, and at least one obliquely extending rear support is provided at the rear of the film sticking module holding portion. Since more attachment devices are provided in the film sticking machine, the weight of the film sticking module increases and presents a forward tilting state. After a period of use, the beam of the frame will deform, causing the pressure wheels of multiple film sticking devices to be not on the same plane, and there is a risk that the film tape is not firmly attached and the pressure wheels may damage the photovoltaic panel. By adding front and rear support members, part of the forward tilting force can be offset, reducing the probability of deformation of the beam and ensuring a more precise and stable film sticking operation.

[0012] In some embodiments of the present application, an elastic buffer is provided between the first bracket and the second bracket. For example, the elastic buffer, which is configured as a spring, can provide a buffering effect during the lifting operation to avoid the impact risk and instability caused by rapid lifting.

[0013] In some embodiments of the present application, a regularization mechanism is provided in the platform module holding portion, the regularization mechanism includes a transverse regularization sub-mechanism arranged along the transverse direction of the film laminating machine and a longitudinal regularization sub-mechanism arranged along the longitudinal direction of the film laminating machine, the longitudinal regularization sub-mechanism includes a main body and a stopper, the main body includes a pusher for pushing the panel of the photovoltaic module, the pusher is configured to be liftable, the stopper includes a matching pusher corresponding to the pusher, the matching pusher is also configured to be liftable. By configuring the pusher and the matching pusher to be liftable, the risk of hitting the blowing device can be avoided, and the panel of the photovoltaic module can be prevented from being stuck in the pit of the matching pusher when descending.

[0014] In some embodiments of the present application, the lateral regularization sub-mechanism includes a slider and a lateral pusher fixed on the slider, and a distance sensor is provided on at least one of the lateral regularization sub-mechanisms, and the distance sensor can detect the distance between itself and the slider. By providing the distance sensor, the regularization operation can be performed more accurately, so that the panel of the photovoltaic module can be positioned more accurately.

[0015] In some embodiments of the present application, the film pasting device includes a support and a holding portion extending in a vertical direction, and the holding portion is provided with at least one guide wheel for guiding the film tape to be pasted, wherein the holding portion can be moved from a first working position for film pasting operation to a second working position located above the first working position. Thus, when the operator needs to replace the film tape on a certain film pasting device, he can move the film pasting device upward to the second working position alone and complete the replacement and film threading operation of guiding the film tape, and in the second position, there is sufficient operating space on the side of the holding portion. Therefore, the advantage of the film pasting module according to the present application is that it is possible to realize the arrangement of more film pasting devices side by side on a film pasting machine without affecting the film changing operation.

[0016] According to some embodiments of the present application, a rotating connection portion is provided on the first side of the support facing the holding portion, and the holding portion is pivotally connected to the rotating connection portion, so that it can be pivoted from the first working position to the second working position. According to some embodiments of the present application, the rotating connection portion is constructed in a U-shaped shape and has two cantilever portions extending in parallel, and a groove for receiving the holding portion is provided between the two cantilever portions. According to some embodiments of the present application, a first through hole is provided on the holding portion, and second through holes corresponding to the positions of the first through holes are respectively provided on the two cantilever portions, and the holding portion is pivotally supported on the rotating connection portion by a rotating shaft passing through the first through hole and the second through hole. Through the above-mentioned pivoting movement mode, the switching of the holding portion from the first working position to the second working position is realized with a simple structure. Of course, the implementation form of the pivot is not limited to this, and those skilled in the art can select a suitable pivot structure according to actual conditions.

[0017] As an alternative implementation of the above-mentioned pivot structure, a guide rail extending in a vertical direction is provided on the first side of the support facing the retaining portion, and a second sliding member capable of sliding relative to the guide rail is provided on the guide rail, and the retaining portion is rigidly connected to the second sliding member and can thereby slide along the guide rail from the first working position to the second working position with the second sliding member. According to some embodiments of the present application, a sliding drive portion is provided on the support, and the sliding drive portion can drive the second sliding member to slide along the guide rail via its actuating element. The advantage of the structural method of the above-mentioned vertical guide rail is that automated drive can be achieved in a simple manner, so that the retaining portion automatically moves from the first working position to the second working position and automatically returns.

[0018] According to some embodiments of the present application, a first locking element is provided on the holding portion, and a first locking mechanism is provided on the support, and the first locking mechanism can lock the holding portion in the first working position by cooperating with the first locking element. The holding portion can be fixedly held in the first working position by the first locking element and the first locking mechanism, thereby ensuring accuracy and reliability during the film application operation.

[0019] According to some embodiments of the present application, a second locking element is provided on the holding portion, and a second locking mechanism is provided on the support, and the second locking mechanism can lock the holding portion in the second working position by cooperating with the second locking element. The holding portion can be fixed in the second working position by the second locking element and the second locking mechanism, so as to facilitate the operator to perform the membrane changing operation.

[0020] According to some embodiments of the present application, the first locking element extends through the hole on the support from the first side of the support facing the retaining portion to the second side of the support away from the retaining portion and protrudes beyond the second side. Preferably, the lower side of the first locking element has a groove, and the first locking mechanism has a first sliding member, and the first sliding member is provided with a convex portion that matches the shape of the groove. The advantage of this structural mode is that there is no need to occupy the installation space of the first side of the support, that is, the side facing the retaining portion, so that the structure of the film sticking device can be made more compact.

[0021] According to some embodiments of the present application, the first locking mechanism further comprises a driving member, which can drive the first sliding member to move toward and away from the first locking element, thereby achieving locking and unlocking with the first locking element. Thus, the locking and unlocking of the retaining portion in the first working position can be automatically achieved.

[0022] According to some embodiments of the present application, the second locking mechanism is configured as a spherical buckle, and the second locking element is configured as a buckle that matches the shape of the spherical buckle. Since the membrane replacement operation has relatively low requirements on the position stability and accuracy of the holding part, the above-mentioned simple buckle structure can be used to lock and unlock in the second working position. Of course, it is also feasible to use a structure similar to the first locking element and the first locking mechanism.

[0023] According to some embodiments of the present application, the holding portion includes a base plate, the base plate has a first cantilever portion and a second cantilever portion extending upward from the side, a gap portion is formed between the first cantilever portion and the second cantilever portion, and a guide wheel mounting plate for mounting the at least one guide wheel is further provided on the base plate, the guide wheel mounting plate covers the gap portion. This scheme of designing the guide wheel mounting plate and the base plate separately can achieve more flexible completion of operations such as installing the guide wheel, because the guide wheel mounting plate can be removed from the base plate as a whole.

[0024] According to some embodiments of the present application, a guide groove is provided below the substrate, and the film sticking device includes a feeding device, and an output end of the guide groove is adjacent to an input end of the feeding device.

[0025] According to some embodiments of the present application, the holding portion includes a mounting plate, one side of the mounting plate is connected to a pressing wheel device and the other side of the mounting plate is connected to a shearing device. This structure can maximize the use of the lateral space of the film sticking device, so that it can be arranged as compactly as possible.

[0026] According to some embodiments of the present application, the film sticking device includes a blowing device disposed below the holding portion, and the blowing device is fixedly connected to the support. In the prior art, the blowing device is directly fixedly connected to the holding portion. If the holding portion is lifted upward, the blowing device will be lifted along with it, which may scald the operator. This situation can be prevented by disposing the blowing device below the holding portion and fixedly connected to the support.

[0027] According to some embodiments of the present application, a handle is fixedly connected to the mounting plate of the holding portion, through which the holding portion can be conveniently pivoted or slid upward.

[0028] According to some embodiments of the present application, a plurality of film sticking devices are arranged side by side on a film sticking module, and the film sticking module is equipped with a control unit, and the control unit is configured so that when one of the film sticking devices of the film sticking module is in the second working position, the film sticking device adjacent to the film sticking device is locked in the first working position. Preferably, the film sticking module includes at least one position sensor for detecting the working position of each film sticking device. Through the control unit, it can be ensured that when a film sticking device performs a film changing operation, it will not be affected by the adjacent film sticking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The exemplary embodiments of the present application are explained in more detail below in conjunction with the accompanying drawings. In the drawings:

[0030] Figure 1 A schematic diagram showing a film laminating machine 100 according to the present application is shown;

[0031] Figure 2 Show Figure 1 A schematic diagram of the internal structure of the film laminating machine 100;

[0032] Figure 3 A schematic diagram showing a film sticking device 51 of a film sticking module 50;

[0033] Figure 4 A perspective view showing a first side of the film assembly 1;

[0034] Figure 5 A perspective view showing a second side of the film assembly 1;

[0035] Figure 6 A schematic perspective view showing a film module holding portion 21;

[0036] Figure 7 A schematic diagram showing a platform module 40 of a film laminating machine 100 according to the present application and a platform module holding portion 22 provided on the platform module;

[0037] Figure 8 A schematic diagram showing the platform module holding portion 22 without the film sticking platform 41;

[0038] Fig. 9 The structure of the main body 2781 of the longitudinal regularization sub-mechanism 278 is shown;

[0039] Fig.10 A schematic diagram showing the construction of one of the two lateral regularization sub-mechanisms 277;

[0040] Fig.11 A schematic perspective view showing a film applying device 51 of a film applying module according to an embodiment of the present application, located in a first working position;

[0041] Fig.12 A schematic perspective view showing the film laminating device 51 of the film laminating module according to the first embodiment of the present application in the first working position from another angle;

[0042] Fig.13 Show Fig.12 Local details near the first locking element 1101;

[0043] Fig.14 A schematic side view showing the film application device 51 in the second working position;

[0044] Fig.15 A schematic perspective view showing a film applying device 51 according to another embodiment of the present application is shown. DETAILED DESCRIPTION

[0045] 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.

[0046] Figure 1 FIG. 1 is a schematic diagram of a film laminating machine 100 according to the present application. 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 .

[0047] Figure 2 The 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 connected to the crossbeam of the frame 20 and thus form a film laminating module 50 of the film laminating machine. 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.

[0048] 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 an elongated plate-like member extending in the vertical direction, 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 to form the material rack and the support as an integrated structure, 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 roller 511. A material unloading drive 517 such as an electric motor is provided on the side of the material rack 518 opposite to the barrel 510, and the material unloading drive 517 can drive the barrel to rotate to convey the film strip. Here, the film strip 52 has a first surface without adhesive and a second surface with adhesive.

[0049] Figure 3The dotted box below is a film sticking assembly 1 of the film sticking device 51 according to the present application, 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 second cantilever portions 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. Reference 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.

[0050] 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.

[0051] 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 4It 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.

[0052] 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.

[0053] Back to Figure 2 It can be seen that the film sticking module 50 formed by the plurality of film sticking devices 51 is fixed on the crossbeam of the frame 20. Here, the part of the frame 20 used to hold the film sticking module 50, i.e. Figure 2 The portion above the platform module 40 is defined as the film module holding portion 21, and the portion of the rack 20 used to hold the platform module 40, i.e. Figure 2 The portion below the platform module is defined as the platform module holder 22. Different from the prior art, when the film laminating machine according to the present application performs the film laminating operation, the film laminating module 50 is fixed, and only the platform module moves relative to the film laminating module to complete the film laminating. In other words, when the film laminating operation is performed, relative to a stationary reference object, such as the housing 10 of the film laminating machine, the film laminating module 50 and the film laminating module holder 21 according to the present application remain stationary.

[0054] Figure 6FIG. 2 shows a schematic perspective view of the film sticking module holding portion 21, wherein the film sticking device 51 is omitted for clarity. Figure 6 As shown, the frame 20 is also provided with a first guide rail 201 for movably guiding the film laminating module holding part 21. The film laminating module holding part 21 moves on the first guide rail 21 along the longitudinal direction of the machine, that is, the direction in which the platform module 40 moves during the film laminating operation, so as to facilitate the debugging and maintenance of the film laminating machine. Of course, the first guide rail may be omitted and the film laminating module holding part may be configured to be fixed. In addition, referring to Figure 2 and Figure 6 The film sticking devices 51 arranged side by side are respectively arranged on at least one cross beam 213 of the film sticking module holding part 21, and a transverse guide rail 213a is arranged on the cross beam 213. The film sticking devices 51 are movably guided on the transverse guide rail 213a so that their transverse positions can be adjusted to adjust the transverse position of the film on the panel of the photovoltaic module.

[0055] In addition, if Figure 6 As shown, since more film sticking devices 51 are provided, the film sticking module holding portion 21 will be subjected to a greater bending moment. In order to ensure the stability of the film sticking, in some embodiments, at least one inclined extending front support member 211 is provided in front of the film sticking module holding portion, and at least one inclined extending rear support member 212 is provided in the rear. As a result, the entire film sticking module holding portion can withstand a higher bending moment and thus produce smaller deformation, thereby improving the stability of the film sticking by the film sticking machine.

[0056] Figure 7 A schematic diagram of the platform module 40 of the film pasting machine 100 according to the present application and the platform module holding portion 22 provided on the platform module is shown. The platform module 40 includes a film pasting platform 41 for carrying and holding the panel of the photovoltaic module during the film pasting operation. The film pasting platform 41 can be divided into two first film pasting platforms 41a located on both sides and at least one (here 3) second film pasting platform 41b located between the two first film pasting platforms 41a according to their positions. The multiple film pasting platforms 41 are used to carry and hold the panel of the photovoltaic module during the film pasting operation. For this purpose, at least one suction cup 42 is provided on the second film pasting platform 41b to fix the panel of the photovoltaic module by suction through the negative pressure generated by suction during the film pasting operation.

[0057] Depend on Figure 7It can be further seen that two adjacent film-sticking platforms 41 are respectively arranged at a certain distance apart, and a conveying mechanism 23 for conveying the panels of the photovoltaic module during the non-film-sticking operation period is respectively provided in the gap between the two adjacent film-sticking platforms 41. The conveying mechanism 23 is constructed as a belt transmission mechanism here, but is not limited to a belt transmission mechanism, and can also be constructed as other transmission mechanisms such as a chain transmission mechanism. The conveying mechanism 23 includes a driving part 231 and a plurality of sub-conveying mechanisms 232, six of which are shown in the figure. Along the longitudinal direction of the machine, a lifting and lowering stopper element 233 is provided between two adjacent sub-conveying mechanisms 232, and the stopper element is used to allow the panels of the photovoltaic module conveyed by the conveying mechanism to be stopped against it for subsequent regularization operations.

[0058] The platform module holding part 22 includes a first bracket 221 and a second bracket 222. The first bracket 221 is rigidly connected to the film sticking platform 41 through at least one first connecting member 223, and the upper surfaces of each film sticking platform 41 are flush. At least one second connecting member 224 is provided between the upper surface of the second bracket 222 and the lower surface of the first bracket 221. The second connecting member 224 is configured to be retractable in the vertical direction, for example, in the form of a guide sleeve and a guide column that can move in the vertical direction in the guide sleeve, so that the first bracket 221 can move in the vertical direction relative to the second bracket 222. In other words, the first bracket 221 is configured to be liftable. To this end, the platform module holding part 22 is provided with a lifting drive part 225, which can be configured as a cylinder device or a linear motor, etc., so that the lifting drive part 225 can drive the first bracket 221 to move up and down. Furthermore, in a preferred embodiment, an elastic buffer 226, such as a spring, may be provided between the first bracket 221 and the second bracket 222, which can provide a buffering effect when the first bracket 221 rises and falls relative to the second bracket 222, so as to achieve a more stable lifting function.

[0059] Depend on Figure 7 It can be further seen that a second guide rail 202 is arranged below the second bracket 222, and the second guide rail extends in the longitudinal direction of the machine, that is, the film-sticking direction. The second bracket 222 is movably guided in the second guide rail 202, so that it can move in the longitudinal direction of the machine or the direction of the film-sticking operation and complete the film-sticking operation.

[0060] In order to accurately position the panel of the photovoltaic module before the film sticking operation, a regularization mechanism is also provided in the platform module holding portion 22 . Figure 8 FIG. 2 shows a schematic diagram of the platform module holding portion 22 without the film sticking platform 41, in which the arrangement of the regular mechanism can be more clearly seen. Figure 8It can be seen that the tidying mechanism includes a pair of relatively arranged transverse tidying sub-mechanisms 277 and two parallel arranged longitudinal tidying sub-mechanisms 278, wherein the longitudinal tidying sub-mechanism 278 includes a main body 2781 and a stopper 2782 extending along the longitudinal direction of the machine.

[0061] Fig. 9 FIG. 2 shows the structure of the main body 2781 of the longitudinal regularization sub-mechanism 278. Fig. 9 It can be seen that the main body 2781 includes a driving part (not shown) which is, for example, a linear motor, a linear guide 2781a and a pushing member 2781b which is, for example, a roller, and the pushing member is fixed on a slider 2781c. The slider can be driven by the driving part to slide on the linear guide 2781a, thereby driving the pushing member 2781b to push the panel of the photovoltaic module along the longitudinal direction of the machine and adjust its longitudinal positioning.

[0062] Combination Figure 8 The stopper 2782 of the longitudinal regularization sub-mechanism 278 is fixedly disposed on the first bracket 221, and the stopper has a mating pusher 2782b corresponding to the pusher 2781b. When performing positioning adjustment, the pusher 2781b of the main body 2781 pushes the panel of the photovoltaic module toward and abuts against the mating pusher 2782b of the stopper 2782 and completes the longitudinal positioning adjustment. In a preferred embodiment, the pusher 2781b and the mating pusher 2782b are provided with a driving device for lifting and are therefore designed to be liftable, whereby, when no positioning adjustment is performed, the pusher 2781b and the mating pusher 2782b drop below the panel of the photovoltaic module. The driving device for lifting is, for example, designed as a relatively small cylinder, such as Fig. 9 This design can prevent the pusher 2781b from hitting the nearby blowing device 12 during the pushing movement, and can also prevent the edge of the photovoltaic panel from getting stuck in the dent of the matching pusher 2782b due to long-term use as a stopper, thereby preventing the risk of glass edge being damaged.

[0063] Fig.10A schematic diagram showing the structure of one of the two transverse regularization sub-mechanisms 277 is shown. Similar to the main body 2781 of the longitudinal regularization sub-mechanism 278, the transverse regularization sub-mechanism 277 includes a drive unit (not shown) such as a linear motor, a linear guide 2771 and a transverse pusher 2772 such as a roller, the transverse pusher is fixed on a slider 2773, and the slider can be driven by the drive unit to slide on the linear guide 2771, so as to drive the pusher 2771 to push the panel of the photovoltaic module in the transverse direction of the machine and adjust its transverse positioning. In this embodiment, unlike the main body 2781 of the longitudinal regularization sub-mechanism 278, the pusher 2771 of the transverse regularization sub-mechanism 277 is not designed to be liftable. Preferably, a distance sensor, such as a laser rangefinder 2774, is provided on at least one of the transverse regularization sub-mechanisms 277, which can detect the distance between the slider 2773 and thereby more accurately adjust the transverse position of the panel of the photovoltaic module.

[0064] The above combined with Figures 6 to 10 The schematic structure of the film pasting module holding part 21 and the platform module holding part 22 according to the present application is introduced. When performing the film pasting operation, the exemplary workflow is as follows: in the initial position, the upper surface of the platform module 40 is lower than the upper surface of the conveying mechanism 23, such as the upper surface of the belt, and the panel of the photovoltaic module is transported to the top of the film pasting platform 41 of the platform module 40 by the conveying mechanism 23 until the panel of the photovoltaic module is blocked by the raised stop element 233, and then the platform module holding part 22 lifts each film pasting platform 41, and then the tidying mechanism, i.e., the above-mentioned transverse tidying mechanism 277 and the longitudinal tidying mechanism 278, adjusts the panel of the photovoltaic module to a suitable position to be pasted, and then at least one suction cup 42 on the second film pasting platform 41b fixes the panel of the photovoltaic module by suction through the negative pressure generated by suction, and finally, the platform module holding part 22 moves along the second guide rail 202 to drive the platform module 40 to move relative to the film pasting module 50 along the longitudinal direction of the machine, i.e., the film pasting direction to complete the film pasting operation.

[0065] When the film tape 52 used for film application is exhausted, the operator needs to manually replace the film. The operator winds the film tape to be replaced on the barrel 510 and guides its end through the plurality of guide rollers 511, the first guide wheel 115, the second guide wheel 116 and the guide groove 117 to the vicinity of the output end of the feeding mechanism. The above process is also called film threading. Figures 3 to 5It can be seen that in order to perform the film-threading operation, sufficient operating space needs to be reserved on the side of the holding portion 11 provided with the first guide wheel 115, the second guide wheel 116 and the guide groove 117, especially on the side provided with the guide wheel and the guide groove. However, when the shearing device 14, the pressing wheel device 13 and the feeding device 15 need to be arranged on the left and right sides of the holding portion 11, even if the above-mentioned devices are arranged as compactly as possible on the holding portion 11, they still need to occupy a considerable lateral space, that is, lateral space. On the other hand, the practical requirement of installing as many film-threading devices as possible on a film-threading machine leads to very limited lateral space between the film-threading devices, which makes it difficult to perform the film-threading operation.

[0066] To solve this problem, the inventor of the present application has thought of using the space above the film sticking assembly 1. Specifically, the holding portion 11 provided with the first guide wheel 115, the second guide wheel 116 and the guide groove 117 of the film sticking assembly 1 of the film sticking device 51 can be moved relative to the first working position located at the bottom of the support 519 during the film sticking operation to the second working position located above the first working position. Therefore, when a film sticking device needs to change the film, the holding portion 11 can be moved as a whole to the second working position, and in the second working position, there is enough space on the side of the holding portion 11 for the film passing operation.

[0067] Fig.11 and Fig.12 Schematic diagrams of a film sticking device 51 of a film sticking module 50 according to an embodiment of the present application are shown from different angles, wherein the film sticking device 51 is located in the first working position, and some components are omitted for a clearer illustration. It can be seen that in the first working position for film sticking operation, the base plate 110 of the holding part 11 is arranged near the bottom of the support 519, located above the blowing device 12 and separated from the blowing device 12 by a distance. In order to ensure the accuracy of film sticking, in the first working position, the holding part 11 should be fixedly connected to the support 519. For this purpose, see Fig.12 In this embodiment, a first locking element 1101 is provided on the side of the base plate 110 of the retaining portion 11 adjacent to the support 519, and a first locking mechanism 520 cooperating with the first locking element 1101 is provided on the support 519. The first locking mechanism 520 can lock the retaining portion 11 in the first working position by cooperating with the first locking element 1101.

[0068] Fig.13 Show Fig.12 Detail of the first locking element 1101 in the embodiment. In this embodiment, the first locking element 1101 is configured as a projection, which extends through the hole 5191 on the support 519 from a first side of the support 519 close to the retaining portion 11 to a second side of the support 519 away from the retaining portion 11 and protrudes beyond the second side. Fig.12 and Fig.13 It can be seen that the lower side of the first locking element 1101 has a groove 1101a, and the first locking mechanism 520 has a first sliding member 5201, and the first sliding member 5201 is provided with a convex portion 5201a that matches the shape of the groove 1101a. The first locking mechanism 520 also has a driving member 5202, such as a cylinder device, and the actuating element of the driving member 5202, such as a piston rod, is rigidly connected to the first sliding member 5201 to drive the first sliding member to move toward and away from the first locking element 1101, thereby achieving locking and unlocking with the first locking element. An embodiment of the first locking element 1101 and the first locking mechanism 520 is described here, and other embodiments can also be conceived, for example, the upper side of the first locking element 1101 but not the lower side can have the groove 1101a, and the first locking mechanism 520 is correspondingly arranged above it, or the driving member of the first locking mechanism is designed as a linear screw motor, etc. Here, those skilled in the art can also think of using various other suitable locking and unlocking schemes, which will not be repeated here.

[0069] Depend on Fig.11 It can be seen that a rotating connection portion 5192 is provided on the side of the support 519 facing the holding portion 11, and the upper end of the second cantilever 113 of the substrate is pivotally connected to the rotating connection portion. Specifically, in this embodiment, the rotating connection portion is constructed in a U-shape and has two cantilever portions extending in parallel, a groove for accommodating the connection portion of the holding portion 11 is provided between the two cantilever portions, and two through holes corresponding in position are provided on the two cantilever portions, and a through hole corresponding to the position of the two through holes is provided on the upper end portion of the second cantilever 113 of the substrate 110 of the holding portion 11, and the rotating shaft 5193 passes through the above three through holes, so that the holding portion 11 can be pivotally supported relative to the rotating connection portion 5192 or relative to the support 519 by means of the rotating shaft 5193, so that the holding portion 11 can be pivoted to the second working position and pivoted back to the first working position from the second working position. In addition, Fig.11 It can be seen that a handle 119 is fixedly connected to the mounting plate 118, so that the operator can conveniently pivot the holding portion 11 upward as a whole by grasping the handle 119. Other connection modes that can achieve pivoting can also be envisioned, which will not be described in detail here.

[0070] In addition, Fig.11 It can be seen that the blowing device 12 located below the holding portion 11 is fixedly connected to the support 519 instead of being fixedly connected to the holding portion 11 as in the prior art. Thus, when the holding portion 11 is moved from the first working position to the second working position, the blowing device 12 will not be lifted up and cause the risk of scalding people.

[0071] Fig.14A schematic side view of the film sticking device 51 in the second working position is shown. Figures 11 to 13 In the first working position shown, the holding part 11 is pivoted upward to the second working position, at which point there is enough operating space on the side of the holding part for film penetration. Fig.11 It can be seen that a second locking element 1102 is provided on the upper side of the holding portion 11, and a second locking mechanism 5194 is provided at a corresponding position of the support 519. When the holding portion 11 is pivoted upward to the second working position, the second locking element 1102 can be engaged with the second locking mechanism 5194. In this embodiment, the second locking mechanism 5194 is configured as a spherical buckle, and the second locking element is configured as a buckle that matches the shape of the spherical buckle. Here, the specific structure of the second locking element and the second locking mechanism is not limited to the form of the above-mentioned buckle, but can be changed according to actual conditions. For example, the second locking element and the second locking mechanism can also be designed to be similar to the first locking element and the first locking mechanism used in the first working position.

[0072] Fig.15 A film sticking device 51 of a film sticking module according to another embodiment of the present application is shown, wherein most of the structure of the film sticking device is the same as that in the first embodiment, and the difference mainly lies in how to achieve the switching between the first working position and the second working position. Fig.15 It can be seen that a guide rail 5195 extending in the vertical direction is provided on one side of the support 519 close to the holding portion 11, and a second sliding member 5196 capable of sliding relative to the guide rail is provided on the guide rail. The holding portion 11 is rigidly connected to the second sliding member 5196. Preferably, the second cantilever portion 113 of the holding portion 11 is rigidly connected to the second sliding member 5196. In addition, a sliding drive portion 5197 is provided, which is optionally also provided on the support 519. In this embodiment, the sliding drive portion 5197 is configured as a cylinder, such as a pen-shaped cylinder, which can drive the second sliding member 5196 to slide along the guide rail 5195 via its actuating element, so that the holding portion 11 can be driven from the first working position to the second working position, and then returned from the second working position to the first working position. Of course, the drive portion can also be configured as other suitable drive devices such as a screw motor. In this embodiment, corresponding locking elements and locking mechanisms are also provided, which will not be repeated here.

[0073] According to some embodiments of the present application, the film sticking module 50 is further provided with a control unit not shown in the figure, and the control unit is configured so that when one of the film sticking devices of the film sticking module is in the second working position, the film sticking device adjacent to the film sticking device is locked in the first working position, for example, by the driving member 5202 controlling the first locking mechanism 520 to lock it in the first working position. Preferably, the film sticking module includes at least one position sensor for detecting the working position of each film sticking device. Through the above control unit, it can be ensured that when a certain film sticking device performs a film changing operation, it will not be affected by the adjacent film sticking device.

[0074] Through the above solution, the film laminating machine 100 according to the present application can realize the compact arrangement of multiple film laminating devices 51 side by side, so as to realize more film laminating stations on one film laminating machine. Figure 2 It can be seen that a plurality of film laminating devices 51 are arranged side by side on the crossbeam of the film laminating machine. In order to further improve the utilization rate of the lateral space, the barrels 510 of two adjacent film laminating devices 51 are arranged at staggered heights, thereby being able to arrange more film laminating devices 51 with the same lateral space.

[0075] 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 film pasting machine for a photovoltaic module, the film pasting machine comprising a frame (20), a platform module (40) comprising at least one film pasting platform (41), and a film pasting module (50) comprising at least one film pasting device (51), wherein: The frame (20) includes a film-sticking module holding portion (21) for holding the film-sticking module and a platform module holding portion (22) for holding the platform module, wherein the platform module holding portion is located below the film-sticking module holding portion, and is characterized in that the platform module holding portion (22) includes a first bracket (221) fixedly connected to the platform module (40) and a second bracket (222) located below the first bracket (221), wherein the first bracket is configured to be liftable relative to the second bracket.

2. The film laminating machine according to claim 1, characterized in that: The first bracket (221) is fixedly connected to the platform module (40) via at least one first connecting member (223), and the second bracket (222) is connected to the first bracket via at least one retractable second connecting member (224).

3. The film laminating machine according to claim 1, characterized in that: The frame (20) includes a second guide rail (202) extending in the longitudinal direction of the film laminating machine, and the second bracket (222) is movably guided on the second guide rail.

4. The film laminating machine according to claim 3, characterized in that: The frame (20) comprises a first guide rail (201) extending in the longitudinal direction of the film laminating machine, and the film laminating module holding portion (21) is movably guided on the first guide rail.

5. The film laminating machine according to any one of claims 1 to 4, characterized in that: The film sticking module holding portion (21) is configured to fixedly hold the film sticking module (50) in a height direction.

6. The film laminating machine according to any one of claims 1 to 4, characterized in that: At least one obliquely extending front support member (211) is arranged at the front of the film sticking module holding portion, and at least one obliquely extending rear support member (212) is arranged at the rear of the film sticking module holding portion.

7. The film laminating machine according to any one of claims 1 to 4, characterized in that: An elastic buffer (226) is provided between the first bracket (221) and the second bracket (222).

8. The film laminating machine according to any one of claims 1 to 4, characterized in that: A tidying mechanism is arranged in the platform module retaining portion (22), and the tidying mechanism includes a transverse tidying sub-mechanism (277) arranged along the transverse direction of the film laminating machine and a longitudinal tidying sub-mechanism (278) arranged along the longitudinal direction of the film laminating machine, and the longitudinal tidying sub-mechanism includes a main body (2781) and a stopper (2782), and the main body (2781) includes a pushing member (2781b) for pushing the panel of the photovoltaic module, and the pushing member is constructed to be liftable, and the stopper (2782) includes a matching pushing member (2782b) corresponding to the pushing member (2781b), and the matching pushing member is also constructed to be liftable.

9. The film laminating machine according to claim 8, characterized in that: The transverse regularization sub-mechanism (277) comprises a slider (2773) and a transverse pusher (2772) fixed on the slider. A distance sensor (2774) is provided on at least one of the transverse regularization sub-mechanisms (277), and the distance sensor can detect the distance between itself and the slider.

10. The film laminating machine according to any one of claims 1 to 4, characterized in that: The film pasting device (51) comprises a support (519) extending in a vertical direction and a holding portion (11), wherein the holding portion is provided with at least one guide wheel for guiding the film strip to be pasted, wherein the holding portion (11) is capable of moving from a first working position for film pasting operation to a second working position located above the first working position.

11. The film laminating machine according to claim 10, characterized in that: A rotating connection portion (5192) is provided on the first side of the support (519) facing the retaining portion (11), and the retaining portion (11) is pivotally connected to the rotating connection portion so as to be pivotable from the first working position to the second working position.

12. The film laminating machine according to claim 11, characterized in that: The rotating connection portion (5192) is constructed in a U-shape and has two cantilever portions extending in parallel, a groove for receiving the retaining portion (11) is provided between the two cantilever portions, a first through hole is provided on the retaining portion (11), and second through holes corresponding to the positions of the first through holes are respectively provided on the two cantilever portions, and the retaining portion is pivotally supported on the rotating connection portion (5192) by a rotating shaft (5193) passing through the first through hole and the second through hole.

13. The film laminating machine according to claim 10, characterized in that: A guide rail (5195) extending in a vertical direction is arranged on the first side of the support (519) facing the retaining portion (11), and a second sliding member (5196) capable of sliding relative to the guide rail is arranged on the guide rail. The retaining portion is rigidly connected to the second sliding member and can thus slide along the guide rail from the first working position to the second working position with the second sliding member.

14. The film laminating machine according to claim 10, characterized in that: A first locking element (1101) is provided on the retaining portion, and a first locking mechanism (520) is provided on the support, wherein the first locking mechanism can lock the retaining portion in the first working position by cooperating with the first locking element.

15. The film laminating machine according to claim 14, characterized in that: A second locking element (1102) is provided on the retaining portion, and a second locking mechanism (5194) is provided on the support. The second locking mechanism can lock the retaining portion in the second working position by cooperating with the second locking element.

16. The film laminating machine according to claim 10, characterized in that: The retaining portion (11) comprises a mounting plate (118), one side of the mounting plate being connected to a pressure wheel device (13) and the other side of the mounting plate being connected to a shearing device (14).

17. The film laminating machine according to claim 10, characterized in that: The film sticking device comprises a blowing device (12) arranged below the holding portion, and the blowing device is fixedly connected to the support (519).

18. The film laminating machine according to claim 10, characterized in that: A plurality of the film sticking devices (51) are arranged side by side on the film sticking module, and the film sticking module is equipped with a control unit, and the control unit is configured so that when one of the film sticking devices (51) of the film sticking module is in the second working position, the film sticking device adjacent to the film sticking device is locked in the first working position.

19. The film laminating machine according to claim 18, characterized in that: The film sticking module includes at least one position sensor for detecting the working position of each film sticking device.

20. The film laminating machine according to claim 10, characterized in that: A plurality of the film pasting devices are arranged side by side on the film pasting module holding portion (21), each of the plurality of film pasting devices having a barrel (510) for storing and conveying film tapes, and the barrels (510) of two adjacent film pasting devices among the plurality of film pasting devices are arranged to be staggered in height.

Images