Distance-separation film connecting transfer mechanism and film laminating equipment

Abstract

The utility model provides a distance-separating film connecting transfer mechanism and film coating equipment, and relates to the technical field of photovoltaic module manufacturing equipment. The distance separation film connecting transfer mechanism comprises a supporting frame, a distance separation platform and a distance separation driving and transmission structure, the distance separation platform comprises at least two movable bearing seats, and the movable bearing seats are in sliding connection with the supporting frame; the transmission structure comprises a group of transmission wheels mounted at the output end of the spacing drive, the number of the transmission wheels is matched with the number of the movable bearing seats, a transmission belt is mounted on the transmission wheels, and the movable bearing seats are connected with the transmission belt; and the spacing driver drives the movable bearing seats to simultaneously and differentially move towards a gathering position or a preset spacing position through the transmission structure. The film laminating equipment comprises the distance separation film receiving transfer mechanism. According to the distance-separating and film-connecting transfer mechanism, the distance-separating efficiency can be improved, the distance between the bearing seats can be guaranteed, and the distance-separating precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic module manufacturing equipment, in particular to a distance-separating film connecting and transferring mechanism and a film laminating device. Background Art

[0002] In a method of manufacturing a battery string using main-grid-free solar cells, a direct film laminating technique is used, and a solder ribbon is fixed to the solar cell by using a hot melt adhesive film laid on the surface of the solar cell to form a battery string. A whole filling film is pre-laid on the glass of the photovoltaic module, and then the battery string group is made by carrying the battery string made by the direct film laminating technique. Then, a whole filling film is laid on the backplane and stacked on the battery string group, which also results in two layers of hot melt adhesive film on the surface of one side of the opposite sides of the solar cell, increasing the manufacturing cost of the battery module. More hot melt adhesive film will overflow during lamination, causing waste. The use of a grid distribution method of the filling film strips can effectively reduce the usage amount of the filling film.

[0003] When transferring each component of the grid filling film from the cutting position to the laying position, usually a single cutting and transferring of the film strip is adopted, and they are arranged one by one into a grid filling film. This method requires multiple transfers, with low efficiency and poor accuracy. Summary of the Utility Model

[0004] The utility model provides a distance-separating film connecting and transferring mechanism and a film laminating device to solve problems such as long transfer cycle, low efficiency, and poor accuracy during the laying of the grid filling film.

[0005] The technical solution adopted by the utility model to solve the above problems is: a distance-separating film connecting and transferring mechanism includes a support frame, a distance-separating platform, a distance-separating drive, and a transmission structure. Among them, the distance-separating platform includes at least two moving carriers, and the moving carriers are slidably connected to the support frame; the transmission structure includes a set of transmission wheels installed at the output end of the distance-separating drive. The number of the transmission wheels matches the number of the moving carriers. A transmission belt is installed on the transmission wheels, and the moving carriers are connected to the transmission belt; the distance-separating drive drives each of the moving carriers to move towards the converging position or the preset distance-separating position simultaneously with different speeds through the transmission structure.

[0006] Preferably, a first transmission shaft is installed on the support frame, and there are two sets of the transmission wheels, which are fixed at both ends of the first transmission shaft.

[0007] Preferably, the transmission wheels are arc tooth belt wheels, and the transmission belt is an arc tooth synchronous belt matching the arc tooth belt wheels.

[0008] Furthermore, the tooth number ratio of the arc tooth belt wheels in each group is a fixed value.

[0009] Preferably, an adsorption structure is provided on the bearing surface of the carrier.

[0010] Preferably, the distance-separating film transfer mechanism further includes an offset assembly. Among them, the offset assembly includes an offset drive and a fixed plate. The support frame is slidably connected to the fixed plate, and the offset drive is used to drive the support frame to perform an offset action.

[0011] Furthermore, two limit seats are provided on the fixed plate, and the limit seats are used to restrict the offset action of the support frame.

[0012] Furthermore, a second transmission shaft is installed on the offset assembly, and the second transmission shaft is arranged below the fixed plate.

[0013] Furthermore, a protective cover is provided on the support frame.

[0014] The present utility model also provides a film laminating device, including the above-mentioned distance-separating film transfer mechanism.

[0015] The present utility model can achieve the following beneficial effects by adopting the above technical solutions:

[0016] 1. By setting a synchronous transmission structure, the present utility model can enable the moving carrier seats gathered together to reach the preset distance-separating positions simultaneously through differential movement. Compared with the prior art, it can effectively reduce the time of distance separation, improve the efficiency of distance separation, and ensure the distance between the carrier seats, thus ensuring the distance-separating accuracy.

[0017] 2. By setting an offset assembly, the offset assembly drives the overall movement of the support frame to adjust the position of the first carrier seat. At the same time, the carrier seat cooperates with the distance-separating stroke adjustment, and it can be compatible with the film laminating requirements of various types of photovoltaic modules.

[0018] 3. By laying an adsorption structure on the carrier seat, the adsorption structure can effectively fix the film strip during the distance-separating process, avoid the displacement of the film strip, and ensure the distance-separating accuracy. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the distance-separating film transfer mechanism of the moving carrier seat in the initial state in the first embodiment of the present application;

[0020] Figure 2 is Figure 1 an enlarged view of part a in

[0021] Figure 3 It is a schematic structural diagram of the distance-separating film transfer mechanism of the moving carrier seat in the distance-separating state in the first embodiment of the present application;

[0022] Figure 4 It is a schematic structural diagram of the distance-separating film transfer mechanism of the moving carrier seat in the distance-separating state in the second embodiment of the present application;

[0023] Figure 5 This is a schematic diagram of the overall structure of the film separating and transferring mechanism with an offset component installed in the third embodiment of the present application;

[0024] Figure 6 This is a schematic diagram of the overall structure of the film separating and transferring mechanism in the state where the protective cover is removed in the third embodiment of the present application;

[0025] Figure 7 is Figure 6 An enlarged view of part b in

[0026] In Figure 1 - Figure 7 in,

[0027] 1. Support frame; 11. Film separating slide rail; 12. Film separating slide seat; 13. Protective cover;

[0028] 2. Film separating platform; 21. Moving carrier seat; 22. Fixed carrier seat; 23. Adsorption structure; 3. Film separating drive; 31. Driving wheel; 32. Transmission belt; 33. First transmission shaft;

[0029] 4. Offset component; 41. Offset drive; 42. Fixed plate; 43. Limit seat; 44. Second transmission shaft; 45. Offset slide rail. Detailed implementation manners

[0030] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] In the present invention, unless otherwise clearly defined and limited, the first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is less than that of the second feature.

[0034] In the prior art, in the photovoltaic industry, the main methods for separating the cut film strips are as follows:

[0035] Method 1: Use a tool to cut the unrolled film roll into film strips one by one, transfer the film strips one by one through a handling device, and achieve the separation of the film strips through multiple reciprocating handling actions;

[0036] Method 2: Use a tool to cut the unrolled film roll into film strips one by one, set up two groups of handling devices. The first handling device transports the cut film strips to a transfer table one by one for a short distance and arranges them side by side. After a certain number of film strips are placed, the corresponding number of gripping units fixed on the second handling device grip the film strips, and then the film strips are separated one by one. Compared with Method 1, in this method, the second handling device only makes one reciprocating conveying action. In addition, the first handling device transports the film strips to the transfer table for a short distance. When the number of film strips transported by the second handling device at one time reaches a certain number, the separation efficiency is improved, but the working efficiency is still low, and there is a large cumulative error in the two transports, which will affect the separation accuracy of the film strips.

[0037] The present utility model provides a separation and film receiving transfer mechanism, including a support frame 1, a separation platform 2, a separation drive 3, and a transmission structure. Among them, the separation platform 2 includes at least two moving carriers 21, and the moving carriers 21 are slidably connected to the support frame 1; the transmission structure includes a set of transmission wheels 31 installed at the output end of the separation drive 3. The number of the transmission wheels 31 matches the number of the moving carriers 21. A transmission belt 32 is installed on the transmission wheels 31, and the moving carriers 21 are connected to the transmission belt 32; the separation drive 3 drives each of the moving carriers 21 to move towards a converging position or a preset separation position simultaneously with different speeds through the transmission structure. The present utility model realizes that a single separation drive 3 drives each moving carrier 21 to move from an initial converging position to a preset separation position at different speeds through different transmission ratios between the transmission wheels 31, and finally realizes the separation action of each moving carrier 21, with high separation accuracy and good stability.

[0038] Such as Figure 1 - Figure 3As shown in the figure, Embodiment 1 of the present utility model provides a film separating and transferring mechanism in the middle, which includes a film separating platform 2 composed of two moving bearing seats 21. That is to say, in this embodiment, it is necessary to separate two film strips to two preset separating positions; it also includes a support frame 1 composed of two parallel cross beams and a connecting beam. Among them, the connecting beam is installed at the ends of the two cross beams, which can increase the overall structural strength of the support frame 1 and prevent the cross beams from being twisted and deformed during the film separating operation. On the other hand, it provides a space for subsequent film covering operations. And, a film separating servo motor group is installed at the end of the cross beam, two arc tooth belt wheels are installed at the output end of the film separating servo motor group, corresponding driven arc tooth belt wheels are installed on the cross beam, and an arc tooth synchronous belt is installed between the corresponding two arc tooth belt wheels. In addition, a linear guide rail is installed on the cross beam, and a film separating slide seat 12 that matches it is configured on the linear guide rail. At the same time, a clamping plate is configured to fix the film separating slide seat 12 on the arc tooth synchronous belt, and the moving bearing seat 21 is installed on the film separating slide seat 12.

[0039] In the application scenario of this embodiment, it is necessary to separate two film strips. The maximum separating distance is 2000mm, and the separating span is 1000mm. That is, the two moving bearing seats 21 need to move to positions of 1000mm and 2000mm respectively relative to the converging position. The width of the two moving bearing seats 21 is 20mm; Converging position layout: The initial distance between the two moving bearing seats 21 is 5mm. The first moving bearing seat 21 is 25mm away from the zero position, and the length of the second moving bearing seat 21 from the first moving bearing seat 21 is 25mm. First, when the two moving bearing seats 21 are converged together, that is, at the converging position, the whole film is laid on the upper end surface of the film separating platform 2 and cut by an external device. At this time, each of the two moving bearing seats 21 carries a film strip. At the same time, the tooth number ratio of the two arc tooth belt wheels selected in this embodiment is 1:2. That is, when the film separating servo motor starts, the ratio of the moving speeds of the two moving bearing seats 21 is 1:2. During its specific operation, the film separating servo motor drives the two arc tooth belt wheels to rotate, and the arc tooth synchronous belt drives the corresponding arc tooth synchronous belt to move simultaneously based on the two arc tooth belt wheels, thereby driving the film separating slide seat 12 to move along the extension direction of the linear guide rail. The first moving bearing seat 21 moves 975mm, and the second moving bearing seat 21 moves 1950mm. In this way, the two moving bearing seats 21 transfer the two film strips to the preset separating positions of 1000mm and 2000mm at one time based on different moving speeds, effectively improving the film separating efficiency. When the film separating servo motor rotates in the reverse direction, the two moving bearing seats 21 move closer to the converging position at the same time based on different moving speeds to perform the next film separating operation.

[0040] Compared with the prior art, the distance-separating film transfer and intermediate mechanism provided by the present utility model can complete the transfer and distance-separating actions of multiple film strips at one time, effectively improving the distance-separating efficiency. The greater the number of film strips to be distance-separated, the more obvious the efficiency improvement. And based on the circular arc tooth synchronous belt, it can ensure that the film strip distance separation is maintained at a very high precision. Of course, when the precision requirement is not high, other driving wheels 31 and driving belts 32 can be used in cooperation. It should be noted that the driving belt 32 here can also be a transmission chain, a transmission rope, or other components with a transmission function that have the same function.

[0041] Of course, in this embodiment, the number of moving bearing seats 21 can be increased to achieve distance-separating the film strips to more preset distance-separating positions. The present utility model does not specifically limit the number of moving bearing seats 21.

[0042] As Figure 4 shown, in the second embodiment of the present utility model, a first transmission shaft 33 is installed on the support frame 1. At the same time, there are two groups of driving wheels 31, which are fixed at both ends of the first transmission shaft 33. The two groups are connected together through the first transmission shaft 33, so that the two groups of driving wheels 31 rotate simultaneously, ensuring that the corresponding sliders on the two cross beams and the moving bearing seats 21 installed thereon move synchronously, avoiding the sliders and the moving bearing seats 21 from being distorted and deformed, reducing the wear of parts, and extending the service life of the equipment.

[0043] In another embodiment of the present application, as Figure 4 shown, an adsorption structure 23 is provided on the bearing surface of the moving bearing seat 21. The adsorption mechanism can fix the film strip to ensure that the film strip does not move relative to the moving bearing seat 21.

[0044] In an application scenario of this first embodiment, a cavity is machined in the moving bearing seat 21, and a number of adsorption holes are provided on the bearing end surface of the moving bearing seat 21. During operation, in the film cutting stage, after the whole film is placed on the moving bearing seat 21, an external device is started, causing a negative pressure to be generated in the cavity of the moving bearing seat 21, adsorbing and fixing the whole film. During the subsequent cutting and distance-separating processes, the positions of the film strips will not change under the adsorption action of the adsorption holes.

[0045] In another application scenario of this embodiment, a number of suction cups are installed on the moving bearing seat 21. The suction cups are fixed by a pressing plate. The suction cups are made of flexible materials such as rubber and silica gel. Since the surface of the film strip is relatively rough, the adsorption effect on the film strip can be improved through the suction cups, and the whole film is adsorbed and fixed. During the subsequent cutting and distance-separating processes, the positions of the film strips will not change.

[0046] To increase the applicability of the above distance-separating film transfer and intermediate mechanism, the distance-separating film transfer and intermediate mechanism provided in another embodiment of the present application, as Figure 6 - Figure 7As shown in the figure, it includes an offset component 4. Specifically, the offset component 4 includes an offset drive 41 and a fixed plate 42. The support frame 1 is slidably connected to the fixed plate 42, and the offset drive 41 is used to drive the support frame 1 to perform an offset action. That is, when the distance requirement changes, the position of the support frame 1 is changed through the offset component 4, so as to meet the requirement of the change in the distance span, that is, to adapt to the film covering requirements of different types of photovoltaic modules.

[0047] In the third embodiment of the present application, it is necessary to process the distance between three film strips. A fixed bearing seat 22 is installed on the connecting beam, and two groups of movable bearing seats 21 are additionally provided, which are respectively used to bear the three film strips. The fixed plate 42 of the offset component 4 is fixed on the peripheral structure. An offset slide rail 45 and an offset servo motor set are fixedly installed on the fixed plate 42. An offset slide seat matching the offset slide rail 45 is installed on the support frame 1. And the movable direction of the movable bearing seat 21 is the same as the movable direction of the fixed plate 42. Two groups of offset circular arc toothed belt wheels are installed on the fixed plate 42, and an offset circular arc toothed synchronous belt is connected therebetween. The offset slide seat is fixedly installed on the offset circular arc toothed synchronous belt through a clamping plate. The offset servo motor can drive the offset circular arc toothed synchronous belt to work, so that the support frame 1 and the overall structure installed on the support frame 1 reciprocate along the extension direction of the offset slide rail 45.

[0048] In the implementation scenario of this embodiment, for the distance requirement of the film strips in the first batch, it is necessary to separate the three film strips. The distance dimension requirement is that the position of the first film strip is 200 mm away from the converging position, and the distance span is 800 mm. After being cut into strips, the offset servo motor is started to drive the overall offset of the support frame 1 by 200 mm, that is, the fixed bearing seat 22 moves to a position 200 mm away from the converging position. At the same time as the offset servo motor is started, the distance separation servo motor is started to drive the two movable bearing seats 21 to synchronously complete the 800 mm distance separation action, so as to complete the distance separation action of the three film strips. For the distance requirement of the film strips in the second batch, it is necessary to separate the three film strips. The distance dimension requirement is that the position of the first film strip is 400 mm away from the converging position, and the distance span is 600 mm. The change between the distance requirement of the film strips in the first batch and the distance requirement of the film strips in the second batch is that the distance separation position of the first film strip changes from 1800 mm to 1600 mm, and at the same time, it is required that the position of the middle film strip does not change. It can be achieved by adjusting the output parameters of the distance separation servo motor and the offset servo motor, without changing the distance separation structure, that is, it can be compatible with the distance separation and film covering requirements of multiple types of photovoltaic modules. The control of the servo motor is a very mature technology in the prior art, and the present application will not elaborate on it specifically. The distance separation requirements of the two film strips in this implementation scenario are only for the convenience of understanding the solution of the present application, and should not be construed as a specific limitation of the present application.

[0049] In addition, the number of the movable bearing seats 21 can be increased or decreased according to actual needs, and the present application does not make specific limitations on this.

[0050] In another embodiment of the present application, as Figure 7 shown, two limit seats 43 are provided on the fixed plate 42. The limit seats 43 are used to restrict the deflection movement of the support frame 1. Specifically, by installing two fixing blocks on the fixed plate 42, the two fixing blocks restrict the support frame 11 within the travel range of the deflection slide rail 45 in a butt-joint manner, effectively preventing the support frame 1 from disengaging from the deflection slide rail 45.

[0051] In another embodiment of the present application, a second transmission shaft 44 is installed on the deflection assembly 4. The second transmission shaft 44 is arranged below the fixed plate 42.

[0052] Specifically, as Figure 7 shown, two juxtaposed tooth grooves are provided on the deflection arc tooth belt pulley away from the support plate. One tooth groove is used to install the deflection arc tooth synchronous belt, and the other tooth groove installs the arc tooth synchronous belt for driving the second transmission shaft 44. The arc tooth synchronous belt penetrates downward through the fixed plate 42. The function of the second transmission shaft 44 is to make the support frames 1 on the two fixed seats move synchronously, reduce the generation of torsion. At the same time, the second transmission shaft 44 can effectively avoid the movement of the support frame 1 and can save space.

[0053] Certainly, in the present application, as Figure 5 shown, a protective cover 13 can also be installed on the support frame 1 to protect the synchronous transmission structure.

[0054] The present application also provides a film laminating device, which includes the above-mentioned distance-separating film-receiving transfer mechanism for performing distance-separating treatment on the film strip before film laminating.

[0055] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distance film transfer mechanism, characterized in that: It comprises a support frame (1), a spacing platform (2), a spacing drive (3), and a transmission structure, wherein: The spacing platform (2) comprises at least two movable bearing seats (21), and the movable bearing seats (21) are slidably connected to the support frame (1); A transmission structure, comprising a group of transmission wheels (31) installed at the output end of the split drive (3), the number of the transmission wheels (31) matches the number of the movable support seats (21), a transmission belt (32) is installed on the transmission wheel (31), and the movable support seat (21) is connected to the transmission belt (32); The separation drive (3) drives each of the movable support seats (21) to move simultaneously and differentially to a gathering position or a preset separation position through the transmission structure.

2. A distance-joined film transfer mechanism according to claim 1, characterized in that: A first transmission shaft (33) is mounted on the support frame (1), and two groups of transmission wheels (31) are fixed to both ends of the first transmission shaft (33).

3. A distance-joined film transfer mechanism according to claim 1, characterized in that: The transmission wheel (31) is a circular arc toothed belt wheel, and the transmission belt (32) is a circular arc toothed synchronous belt matching the circular arc toothed belt wheel.

4. A distance-joined film transfer mechanism according to claim 3, characterized in that: The gear ratio of each circular arc toothed belt wheel in the group is a fixed value.

5. The distance-separated film transfer mechanism according to claim 1, characterized in that: An adsorption structure (23) is provided on the bearing surface of the movable bearing seat (21).

6. A distance film splicing transfer mechanism according to any one of claims 1 to 5, characterized in that: comprising an offset assembly (4), wherein: The offset assembly (4) comprises an offset drive (41) and a fixing plate (42), the support frame (1) is slidably connected to the fixing plate (42), and the offset drive (41) is used to drive the support frame (1) to perform an offset action.

7. A distance-joined film transfer mechanism according to claim 6, characterized in that: Two limit seats (43) are provided on the fixing plate (42), and the limit seats (43) are used to constrain the offset movement of the support frame (1).

8. The distance-separated film transfer mechanism according to claim 6, characterized in that: The offset assembly (4) is equipped with a second transmission shaft (44), and the second transmission shaft (44) is arranged below the fixing plate (42).

9. The distance-separated film transfer mechanism according to claim 6, characterized in that: The support frame (1) is provided with a protective cover (13).

10. A film coating device, characterized in that: It comprises the distance film transfer mechanism as described in any one of claims 1-9.

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