Backboard film pasting device

Abstract

The utility model discloses a backboard film pasting device. The backboard film pasting device comprises a carrying mechanism and two film pasting mechanisms. Wherein one film pasting mechanism carries out inter-string film pasting on a back plate, the other film pasting mechanism carries out inter-sheet film pasting on the back plate, and the carrying mechanism carries the back plate to a string gap film pasting station for inter-string film pasting and carries the back plate from the string gap film pasting station to a sheet gap film pasting station for inter-sheet film pasting after inter-string film pasting is finished; the film pasting mechanism comprises a bearing table, a film laying assembly and a hot bonding assembly. The bearing table bears the film strip and the back plate; the film laying assembly is arranged above the bearing table, and film strips are laid on the bearing table; the hot bonding assembly is arranged below the bearing table and heats the film strip laid on the bearing table from the lower portion so that the film strip can be bonded with the back plate laid on the film strip. According to the invention, the film strip can be heated from the lower part of the back plate so as to be pasted on the back plate, the back plate does not need to be reversed in the subsequent assembly glass combination process, the overall manufacturing process of the photovoltaic cell assembly is simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic cell assembly manufacturing, and in particular to a backplane film laminating device. Background Art

[0002] Photovoltaic modules are typically constructed from a backsheet, a lower film, a cell string, an upper film, and a glass plate. Gaps exist between adjacent cells in a cell string and between adjacent cell strings, making it difficult for light energy to be directly absorbed or utilized. To improve light energy utilization, the industry employs reflective film strips on the backsheet corresponding to the gaps between cells and between cell strings. These reflective film strips reflect light energy that hits these gaps onto the glass plate, which then reflects it back onto the cells, fully utilizing the light energy in these gaps.

[0003] Reference Figure 1 As shown, the several reflective film strips in the first horizontal direction are the sheet gap film strips 3 corresponding to the inter-sheet positions. The several reflective film strips in the second horizontal direction are the string gap film strips 2 corresponding to the inter-string positions. In the prior art, the film laminating method of the backplane laminating equipment is usually as follows: the backplane 1 is transported to the specified position, and the laminating head applies the sheet gap film strips 3 and the string gap film strips 2 to the upper surface of the backplane 1. Since the reflective film strips are located on the upper surface of the backplane 1, the backplane 1 needs to be flipped over before the component is glassed so that the reflective film strips face downward. Flipping the backplane 1 increases the complexity of the process and requires a separate backplane flipping mechanism, which also increases the component manufacturing cost. Utility Model Content

[0004] In order to solve the problems of the prior art, the present application provides a backplane film laminating device.

[0005] Specifically, the present application provides a backplane film laminating device, comprising: a transport mechanism and two film laminating mechanisms; one of the film laminating mechanisms is used to laminarize between strings on the backplane, and the other film laminating mechanism is used to laminarize between sheets on the backplane; the transport mechanism is used to transport the backplane to a film laminating station between strings for laminating between strings, and after the film laminating between strings is completed, transport the backplane from the film laminating station between strings to a film laminating station between sheets for laminating between sheets;

[0006] The film laminating mechanism includes a carrying platform, a film laying assembly, and a hot-adhesive assembly; the carrying platform is used to carry the film strip and the backing plate; the film laying assembly is arranged above the carrying platform and is used to lay the film strip on the carrying platform; the hot-adhesive assembly is arranged below the carrying platform and is used to heat the film strip laid on the carrying platform from below so that the film strip and the backing plate laid thereon are bonded;

[0007] The backplane film laminating device provided by the present application has two film laminating mechanisms that can successively implement inter-string film laminating and inter-sheet film laminating of the backplane. The film laying component in each film laminating mechanism can lay film strips on the supporting platform. The conveying mechanism places the backplane on the film strips after the film strips are laid. The hot adhesive component is arranged under the supporting platform and can heat the film strips from the bottom of the backplane so that the film strips are adhered to the backplane. After the film strips are adhered, they are located on the lower surface of the backplane. There is no need to reverse the backplane in the subsequent component glass bonding process, which simplifies the overall manufacturing process of the photovoltaic cell component and improves production efficiency.

[0008] In some embodiments, a carrier platform for film lamination between strings includes: a frame, a first lifting drive assembly, and a first film strip fixing platform disposed transversely within the frame;

[0009] The rack is configured to support the backplane at the top;

[0010] The first membrane strip fixing platform is configured to adsorb and fix the membrane strips laid by the corresponding membrane laying assembly. The first membrane strip fixing platform is provided with adsorption holes in the same number of rows as the number of rows of membrane strips to be laid. The position of each row of adsorption holes corresponds one-to-one to the position of the membrane strips to be laid.

[0011] The first lifting drive assembly is drivingly connected to the first film strip fixing platform and is used for driving the first film strip fixing platform to lift and lower.

[0012] By adsorbing and fixing the string gap membrane strips through the first membrane strip fixing platform, the position of the thin string gap membrane strips can be fixed, thereby ensuring the film-sticking accuracy of the string gap membrane strips; by connecting the first membrane strip fixing platform to the first lifting drive assembly, when the conveying mechanism places the backplane to the top of the frame, the first membrane strip fixing platform and the adsorbed string gap membrane strips can be controlled to descend to the avoidance low position first, and after the position of the backplane is adjusted, the first membrane strip fixing platform and the adsorbed string gap membrane strips can be controlled to rise, so that the string gap membrane strips are in contact with the lower surface of the backplane, thereby avoiding affecting the surface quality of the string gap membrane strips.

[0013] In some embodiments, at least two first film strip fixing platforms are provided, each of which is used to absorb and fix at least one string gap film strip; at least one support member for supporting the backplane is provided on the top surface of the rack;

[0014] An escape gap is provided between two adjacent first membrane strip fixing platforms for evading the support member during lifting.

[0015] A specific structural arrangement of a first film strip fixing platform and a frame is provided. The first film strip fixing platform is driven by a first lifting drive assembly to descend to the bottom of the support member, enabling the film strip adsorbed and fixed thereon to leave the back plate supported by the support member frame, thereby facilitating the positional movement of the back plate without rubbing the film strip.

[0016] In some embodiments, the film laminating mechanism for inter-string film laminating further includes a tidying component, which is configured to clamp the backboard on the carrier platform transported to the inter-string film laminating station and correct the position of the backboard.

[0017] By setting a regular component at the supporting platform at the string gap film pasting station, the regular component can be used to correct the position of the backboard before implementing the inter-string film pasting on the backboard, avoiding the film strips from being pasted crookedly on the backboard and causing misalignment of the film strips, thereby ensuring the accuracy of the film pasting.

[0018] In some embodiments, the aligning assembly includes an X-guide rail, a Y-guide rail, and a pair of aligning pieces. At least one aligning piece is provided on each side of the carrier for laminating films between strings. The X-guide rail and the Y-guide rail are both arranged transversely and perpendicular to each other.

[0019] The regulating piece is configured to slide along the X guide rail or the Y guide rail to move closer to or away from the back plate laid on the carrier.

[0020] By providing at least one aligning piece on each side of the back plate, the aligning position is more precise and the aligning efficiency is higher.

[0021] In some embodiments, the supporting platform for inter-sheet film lamination includes a second film strip fixing platform, which is configured to adsorb and fix the inter-sheet film strips laid by the corresponding film laying assembly and to carry the backing plate. The second film strip fixing platform is provided with adsorption holes whose number is equal to the number of rows of inter-sheet film strips to be laid, and the position of each row of adsorption holes corresponds one-to-one to the position of the inter-sheet film strips to be laid.

[0022] After the inter-sheet film strips are laid on the second film strip fixing platform, and the backboard no longer needs to be adjusted after the inter-string film pasting is completed, the second film strip fixing platform supports the backboard, and the film pasting mechanism structure for inter-sheet film pasting is simpler and more compact.

[0023] In some embodiments, the film laminating mechanism for laminating films between sheets further includes a punching assembly;

[0024] The punching assembly is arranged below the supporting platform of the sheet gap film laminating station. An avoidance channel is provided on the supporting platform of the sheet gap film laminating station corresponding to the position of the sheet gap film strip in the middle of the back panel. The punching assembly is configured to pass through the avoidance channel to open a through hole on the sheet gap film strip in the middle of the back panel corresponding to the position of the lead hole on the back panel.

[0025] By setting a punching component under the supporting platform of the sheet gap film laminating station, after the sheet gap film strips are pasted, the punching component can be used to open a hole in a sheet gap film strip in the middle of the backboard, so that when the glass is subsequently closed, the leads in the battery string group of the photovoltaic module can extend through the opened through holes and the lead holes of the backboard and be installed with the junction box.

[0026] In some embodiments, the punching assembly includes: a punch arranged longitudinally and used to punch holes in the intersheet film strips in the middle of the back plate, and a second lifting drive assembly for driving the punch to rise and fall.

[0027] The punch is driven by the second lifting drive assembly to punch a through hole on the sheet gap membrane strip in the middle of the back plate, and the punch is driven down after the punching is completed. The punch only moves up and down in a straight line under the drive of the second lifting drive assembly. The travel path is simple and the structure of the punching assembly is more compact.

[0028] In some embodiments, the supporting platform is also used to adsorb each film strip, and an avoidance hole is opened on the supporting platform for the hot glue component to pass through to heat the film strip carried and adsorbed on the supporting platform.

[0029] The hot glue component heats the film strip carried and adsorbed above the carrier platform by rising straight up through the avoidance hole, and then drops straight down to the avoidance low position after heating. The travel path is simple, and the position of the heating point is not easily offset, and the structure of the film-sticking mechanism is more compact.

[0030] In some embodiments, a plurality of film strip carrying positions are provided on the carrying platform, each of which is used to carry a film strip, and a hot-melt assembly is correspondingly provided below each of the film strip carrying positions on the carrying platform;

[0031] Each hot-adhesive component is configured to translate along the length direction of the film strip carried by the corresponding film strip carrying position to sequentially heat at least two points on the corresponding film strip above so that the film strip is adhered to the back panel.

[0032] By using a hot-melt component to sequentially heat the corresponding film strips above, the number of hot-melt components can be reduced, thereby lowering the device cost.

[0033] In some embodiments, a first translation guide rail, a first translation drive assembly, and a third lifting drive assembly are provided below each film strip carrying position;

[0034] The first translation guide rail is parallel to the film strip at the corresponding film strip carrying position, the third lifting drive component is slidably connected to the first translation guide rail and is driven to translate by the first translation drive component, and the third lifting drive component is connected to the corresponding hot glue component to drive the hot glue component to lift and lower.

[0035] By cooperating with the first translation drive assembly and the third lifting drive assembly to drive the hot glue assembly to translate and lift, the hot glue assembly can heat at least two points to be heated on the film strip in sequence and at close range. Through the guidance of the first translation guide rail, the path deviation of the hot glue assembly during the sequential point ironing process can be avoided, which leads to the position deviation of the hot glue points.

[0036] In some embodiments, a plurality of film strip carrying positions are provided on the carrying platform, each of which is used to carry a film strip, and at least two thermal adhesive components are correspondingly provided below each film strip carrying position of the carrying platform, and the at least two thermal adhesive components are spaced apart along the length direction of the film strip on the corresponding film strip carrying position;

[0037] At least two heat-adhesive components are configured to simultaneously perform spot-scalding on the film strips at the corresponding film strip carrying positions above so that the film strips are adhered to the back panel.

[0038] The efficiency of thermal bonding can be improved by using multiple thermal bonding components to heat the corresponding film strips at the same time.

[0039] In some embodiments, a fourth lifting drive assembly is further provided below the carrying platform;

[0040] Each hot-melt assembly is connected to the fourth lifting drive assembly and is driven by the fourth lifting drive assembly to rise and fall simultaneously.

[0041] All the hot-adhesive components are driven by the fourth lifting drive component to rise and fall simultaneously, which can heat all the film strips at the same time, improve the hot-adhesive efficiency, and simplify the structure of the film-laminating mechanism.

[0042] In some embodiments, a film laying assembly for inter-string film application includes: a second translation guide rail, a second translation drive assembly, and a set of film laying head assemblies; the second translation guide rail is fixed to a carrier platform of the inter-string film application station and is arranged along the length direction of the inter-string film strip to be laid;

[0043] A set of membrane laying head assemblies is configured to be driven by the second translation drive assembly to lay two sets of gap membrane strips on the carrier platform in batches while translating on the second translation guide rail;

[0044] The film laying head assembly includes: a moving part and a film laying head installed on the moving part;

[0045] The movable part is slidably connected to the second translation guide rail and driven by the second translation drive assembly. The number of film laying heads is equal to the number of a group of string gap film strips required for the string gap film laminating station, and the film laying heads are arranged on the movable part at intervals along a direction perpendicular to the second translation guide rail.

[0046] A group of film laying head assemblies are driven by the second translation drive assembly to complete the laying of two groups of string gap film strips in two times in the length direction of the string gap film strips, reducing the number of film laying heads and simplifying the film laying structure of the string gap film laying station.

[0047] In some embodiments, a film laying assembly for inter-string film application includes: a third translation guide rail, a third translation drive assembly, and two sets of film laying head assemblies; the third translation guide rail is fixed to a support platform of the inter-string film application station and is arranged along the length direction of the inter-string film strip to be laid;

[0048] The two sets of film laying head assemblies are configured to be driven by the third translation drive assembly to respectively lay two sets of series gap film strips on the carrier platform while translating on the third translation guide rail;

[0049] Each film laying head assembly includes: a moving part and a film laying head installed on the moving part;

[0050] The movable part is slidably connected to the third translation guide rail and driven by the third translation drive assembly. The number of film laying heads is equal to the number of a group of string gap film strips required for the string gap film laminating station, and the film laying heads are arranged on the movable part at intervals along a direction perpendicular to the third translation guide rail.

[0051] The two sets of film laying head assemblies are driven by the third translation drive assembly to simultaneously lay the film of two sets of gap film strips, which can complete the laying of two sets of gap film strips on the backboard at one time, thereby improving the film laying efficiency.

[0052] In some embodiments, a film laying assembly for inter-sheet film lamination includes a fourth translation guide rail, a fourth translation drive assembly, and a film laying head assembly; the fourth translation guide rail is fixed to a carrier platform of the inter-sheet film lamination station and is arranged along the length direction of the inter-sheet film strip to be laid;

[0053] The film laying head assembly is configured to be driven by the fourth translation drive assembly to lay the sheet gap film strips on the carrier platform while translating on the fourth translation guide rail;

[0054] The film laying head assembly includes: a moving part and a film laying head installed on the moving part;

[0055] The movable part is slidably connected to the fourth translation guide rail and is driven by the fourth translation drive assembly. The number of film laying heads is equal to the number of sheet gap film strips required by the sheet gap film laminating station, and the film laying heads are arranged on the movable part at intervals along a direction perpendicular to the fourth translation guide rail.

[0056] The film laying head, which has the same number of film strips as that required by the film-gap laminating station, can be translated along the length direction of the film strips under the drive of the fourth translation drive component, and can complete the laying of all the film strips at one time.

[0057] In some embodiments, the film laying head includes: a connecting plate, and a film strip guide, a film strip feeding member, a cutting member, and a pressing member respectively mounted on the connecting plate;

[0058] The connecting plate is installed on the corresponding moving part, and the membrane strip guide is installed on the top of the connecting plate to guide and limit the membrane strip;

[0059] The film strip feeding member is arranged on one side of the film strip guide member adjacent to the carrying platform, and is used to control the movement of the film strip;

[0060] The cutting piece and the pressing piece are both located at the bottom end of the connecting plate. The pressing piece is used to control the pressing and loosening of the film strip, and the cutting piece is used to cut the film strip. The film strip is limited and guided by the film strip guide piece to enter the film strip feeding piece, and is sent out from the film strip feeding piece and pressed by the pressing piece to be laid on the supporting platform. After completing a laying stroke, it is cut by the cutting piece.

[0061] The film strip is guided and limited by the film strip guide, the film strip feeding part controls the movement of the film strip, the pressing part presses the film strip on the supporting platform, and the cutting part cuts the film strip, so that the film strip can be accurately laid on the supporting platform to avoid the position deviation of the film strip during the laying process.

[0062] In some embodiments, the transport mechanism includes a first transport component and a second transport component;

[0063] The first transport assembly is provided on one side of the film laminating mechanism for laminating the backplane between strings, and is used to transport the backplane from the backplane feeding area to the carrying table of the film laminating station between strings;

[0064] The second transport assembly is arranged between the two film laminating mechanisms, and is used to transport the backplane from the carrying platform of the string gap film laminating station to the carrying platform of the sheet gap film laminating station.

[0065] After the first transport component transports the backboard in the feeding area to the string gap film laminating station to complete the inter-string film laminating, the second transport component then transports the backboard to the sheet gap film laminating station to complete the inter-sheet film laminating. The two transport components can work simultaneously to realize the transfer and transportation of the backboard, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] The disclosure of this application will be more easily understood with reference to the accompanying drawings. Those skilled in the art will readily appreciate that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. Furthermore, similar numbers in the figures represent similar components, where:

[0067] Figure 1 This is a schematic diagram of the back panel after the film is applied;

[0068] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0069] Figure 3 This is a schematic structural diagram of a backplane film laminating device in one embodiment of the present application;

[0070] Figure 4 This is a structural diagram of a string gap laminating mechanism in a backplane laminating device in one embodiment of the present application;

[0071] Figure 5 This is a schematic diagram of the structure of the first film strip fixing platform and the lower portion in the backplane film laminating device in one embodiment of the present application;

[0072] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0073] Figure 7 This is a schematic structural diagram of a sheet gap laminating mechanism in a backplane laminating device in one embodiment of the present application;

[0074] Figure 8 yes Figure 7 Enlarged view of point C in the middle;

[0075] Figure 9 This is a schematic diagram of the process of punching holes in the inter-sheet film strips by the punching mechanism in one embodiment of the present application;

[0076] Figure 10 This is a schematic structural diagram of a punching assembly in a sheet gap laminating mechanism in one embodiment of the present application;

[0077] Figure 11 This is a structural diagram of a film laying head in one of the embodiments of the present application;

[0078] Wherein: 1. back plate; 2. film strips with gaps between strings; 3. film strips with gaps between sheets; 4. transport mechanism; 41. first transport assembly; 42. second transport assembly; 5. film strips with gaps between strings; 5A. film strips with gaps between strings; 51. frame; 511. support member; 512. avoidance gap; 52. first lifting drive assembly; 53. first film strip fixing platform; 6. film strips with gaps between sheets; 6A. film strips with gaps between sheets; 61. second film strips with gaps between sheets; 62. fifth lifting drive assembly; 7. carrier platform; 8. film laying assembly; 81. third translation guide rail; 82. laying Membrane head assembly; 821, moving part; 822, film laying head; 8221, connecting plate; 8222, film strip guide; 8223, film strip feeding part; 8224, cutting part; 8225, pressing part; 83, fourth translation guide rail; 9, hot glue assembly; 91, fourth lifting drive assembly; 10, regularization assembly; 101, X-guide rail; 102, Y-guide rail; 103, regularization part; 104, regularization drive part; 11, punching assembly; 111, punch; 112, second lifting drive assembly; 12, through hole; 13, avoidance hole; 14 adsorption hole. DETAILED DESCRIPTION

[0079] Some embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the scope of protection of the present application.

[0080] As described in the background art, the current film laminating method of the backplane laminating device is usually as follows: the backplane is transported to a designated position, and the film laminating head applies the gap film strips and the string gap film strips to the upper surface of the backplane. Since the reflective film strips are located on the upper surface of the backplane, it is necessary to flip the backplane so that the reflective film strips face downward before the component is glassed. However, flipping the backplane increases the complexity of the process, and requires a separate backplane flipping mechanism, which also increases the component manufacturing cost. In order to solve the above problems, the present application creatively proposes a backplane laminating device, which sequentially lays reflective film strips and backplanes on the supporting platform, and sets a hot-adhesive component below the supporting platform to heat the reflective film strips laid on the supporting platform from below so that the reflective film strips are bonded to the backplane laid on the reflective film strips. There is no need to flip the backplane so that the reflective film strips face downward before the subsequent component is glassed, which reduces the complexity of the process and does not require a separate backplane flipping mechanism, thereby reducing the component manufacturing cost.

[0081] The present application will be described in detail below through specific embodiments.

[0082] This embodiment provides a backplane film laminating device, which implements laminating of the string gap film strip 2 and the sheet gap film strip 3 on the backplane 1, combined with Figure 1 and Figure 2 , refer to Figure 3 As shown, the backplane film pasting device includes: a conveying mechanism 4 and two film pasting mechanisms; one of the film pasting mechanisms is used to implement inter-string film pasting on the backplane 1, which is recorded as the string gap film pasting mechanism 5, and the other film pasting mechanism is used to implement inter-sheet film pasting on the backplane 1, which is recorded as the sheet gap film pasting mechanism 6. The conveying mechanism 4 is used to convey the backplane 1 to the string gap film pasting station 5A for inter-string film pasting, and after the inter-string film pasting is completed, convey the backplane 1 from the string gap film pasting station 5A to the sheet gap film pasting station 6A for inter-sheet film pasting; the string gap film pasting station 5A refers to the place where the string gap film strips 2 and the backplane 1 are laid and bonded, and the sheet gap film pasting station 6A refers to the place where the sheet gap film strips 3 and the backplane 1 are laid and bonded.

[0083] The film-laminating mechanism includes a supporting platform 7, a film-laying component 8 and a hot-melt component 9; the supporting platform 7 is used to carry the film strip and the backboard 1; the film-laying component 8 is arranged above the supporting platform 7, and is used to lay the film strip on the supporting platform 7; the hot-melt component 9 is arranged below the supporting platform 7, and is used to heat the film strip laid on the supporting platform 7 from below so that the film strip is bonded to the backboard 1 laid thereon.

[0084] The film strips to be applied on the back panel 1 are divided into string gap film strips 2 and sheet gap film strips 3. Figure 1 As an example of the back plate 1 shown in FIG. 1 , along the first horizontal direction (ie Figure 1 The several reflective film strips extending in the Y direction are the inter-sheet gap film strips 3 corresponding to the inter-sheet positions, such as Figure 1 There are 25 inter-sheet gap membrane strips 3; along the second horizontal direction (i.e. Figure 1The plurality of reflective film strips extending in the X direction are the string gap film strips 2 corresponding to the string positions. The second horizontal direction is perpendicular to the first horizontal direction. The string gap film strips 2 are arranged in two groups along the second horizontal direction, and each group includes the same number of string gap film strips 2. Figure 1 Each group contains 7 string gap membrane strips 2, and there are a total of 14 string gap membrane strips 2 on the entire backplane; the number of string gap membrane strips 2 and cell gap membrane strips 3 on the backplane 1 mainly depends on the number of cell strings in the photovoltaic module and the number of cell cells contained in each cell string.

[0085] The film laying assembly 8 in the string gap film laminating mechanism 5 lays the string gap film strip 2 on the supporting platform 7 in the string gap film laminating mechanism 5. The conveying mechanism 4 conveys the backboard 1 from the feeding area to the string gap film laminating station 5A and places it on the laid string gap film strip 2. The hot glue assembly 9 in the string gap film laminating mechanism 5 heats the laid string gap film strip 2 from below so that the string gap film strip 2 is bonded to the backboard 1 laid thereon. The film laying assembly 8 in the sheet gap film laminating mechanism 6 lays the sheet gap film strip 3 on the supporting platform 7 in the sheet gap film laminating mechanism 6. The conveying mechanism 4 then conveys the backboard 1 with the sheet gap film strip 3 attached thereto to the sheet gap film laminating station 6A and places it on the laid sheet gap film strip 3. The hot glue assembly 9 in the sheet gap film laminating mechanism 6 heats the laid sheet gap film strip 3 from below so that the sheet gap film strip 3 is bonded to the backboard 1 laid thereon. The hot-adhesive components 9 in the string gap film-pasting mechanism 5 and the sheet gap film-pasting mechanism 6 both heat the film strips from the bottom of the back plate 1 so that the string gap film strips 2 and the sheet gap film strips 3 are adhered to the back plate 1. After the string gap film strips 2 and the sheet gap film strips 3 are adhered, they are located on the lower surface of the back plate 1. In the subsequent assembly glass bonding process, there is no need to reverse the back plate 1, which simplifies the overall manufacturing process of the photovoltaic cell assembly and improves production efficiency. In some embodiments, referring to Figure 4 and Figure 5 As shown, the carrier platform 7 for inter-string film laminating in the inter-string film laminating mechanism 5 includes: a frame 51, a first lifting drive assembly 52 and a first film strip fixing platform 53 transversely arranged in the frame 51;

[0086] The rack 51 is configured to support the back panel 1 at the top end;

[0087] The first film strip fixing platform 53 is configured to adsorb and fix the series gap film strips 2 laid by the corresponding film laying assembly 8. The first film strip fixing platform 53 is provided with adsorption holes 14 in the same number of rows as the series gap film strips 2 to be laid. The position of each row of adsorption holes 14 corresponds one-to-one to the position of the series gap film strips 2 to be laid.

[0088] The first lifting drive assembly 52 is drivingly connected to the first film strip fixing platform 53 and is used to drive the first film strip fixing platform 53 to move up and down.

[0089] By adsorbing and fixing the string gap membrane strips 2 through the first membrane strip fixing platform 53, the position of the thin string gap membrane strips 2 can be fixed, thereby ensuring the film-sticking accuracy of the string gap membrane strips 2; by driving and connecting the first membrane strip fixing platform 53 with the first lifting drive component 52, when the conveying mechanism 4 places the back panel 1 on the top of the frame 51, the first membrane strip fixing platform 53 and the adsorbed string gap membrane strips 2 can be controlled to descend to the avoidance low position first, and after the position of the back panel 1 is adjusted, the first membrane strip fixing platform 53 and the adsorbed string gap membrane strips 2 can be controlled to rise, so that the string gap membrane strips 2 are in contact with the lower surface of the back panel 1, thereby avoiding affecting the surface quality of the string gap membrane strips 2.

[0090] Optional, see Figure 4 and Figure 5 As shown, the first film strip fixing platform 53 is provided with at least two (such as Figure 4 and Figure 5 5), each first film strip fixing station 53 is used to adsorb and fix at least one series gap film strip 2; optionally, refer to Figures 4 to 6 As shown, each first membrane strip fixing platform 53 is provided with at least one row of adsorption holes 14, and each row of adsorption holes 14 corresponds to the adsorption of one string gap membrane strip 2. The sum of the number of rows of adsorption holes 14 on each first membrane strip fixing platform 53 is equal to the number of one group of string gap membrane strips 2 to be pasted on the back panel 1, and the position of each row of adsorption holes 14 is designed according to the position of the string gap membrane strip 2 to be laid.

[0091] Continue to refer to Figure 4 As shown, the top surface of the frame 51 is provided with at least one support member 511 (such as Figure 4 A clearance gap 512 is provided between two adjacent first film strip fixing platforms 53 for avoiding the support members 511 during lifting.

[0092] A specific structural arrangement of a first membrane strip fixing platform 53 and a frame 51 is provided. The first membrane strip fixing platform 53 is driven by a first lifting drive assembly 52 to descend to the bottom of the support 511, enabling the adsorbed and fixed string gap membrane strips 2 to leave the back plate 1 supported by the support 511, thereby facilitating the positional movement of the back plate 1 without rubbing the string gap membrane strips 2.

[0093] Optional, see Figure 4 and Figure 5 As shown, the film laminating mechanism for inter-string film laminating further includes a regularization component 10, which is configured to clamp the backboard 1 on the carrier platform 7 transported to the inter-string film laminating station 5A and correct the position of the backboard 1.

[0094] By setting a regularization component 10 at the supporting platform 7 at the string gap film pasting station 5A, the regularization component 10 can be used to correct the position of the backboard 1 before implementing the inter-string film pasting on the backboard 1, thereby avoiding the string gap film strips 2 being skewed and pasted on the backboard 1, resulting in misalignment of the film strips, and ensuring the accuracy of the film pasting.

[0095] Optionally, the structuring component 10 includes an X-guide rail 101 and a Y-guide rail 102 and structuring pieces 103 arranged in pairs. At least one structuring piece 103 is provided on each side of the carrier platform 7 for inter-string film lamination. The X-guide rail 101 and the Y-guide rail 102 are both arranged horizontally and perpendicular to each other; the structuring piece 103 is configured to slide along the X-guide rail 101 or the Y-guide rail 102 to approach or move away from the back panel 1 laid on the carrier platform 7.

[0096] By providing at least one aligning piece 103 on each side of the back plate 1 , the aligning position is more precise and the aligning efficiency is higher.

[0097] The optional working process of the tidying component 10 is: after the conveying mechanism 4 conveys the backboard 1 to the supporting platform 7 at the string gap film laminating station 5A, the tidying parts 103 located on the four sides of the supporting platform 7 move toward the four sides of the backboard 1 at the same time to clamp the backboard 1 and correct the position of the backboard 1.

[0098] In another embodiment, the optional working process of the regularization component 10 is as follows: after the transport mechanism 4 transports the backboard 1 to the supporting platform 7 at the string gap film laminating station 5A, the backboard 1 is supported by the support 511 on the top surface of the frame 51, and the first film strip fixing platform 53 at the string gap film laminating station 5A is driven by the first lifting drive component 52 to descend to the bottom of the support 511, so that the string gap film strip 2 adsorbed and fixed by it leaves the backboard 1 supported by the support 511, and the regularization components 103 located on the four sides of the supporting platform 7 move toward the four sides of the backboard 1 at the same time to clamp the backboard 1 and correct the position of the backboard 1. After the position of the backboard 1 is corrected, the first film strip fixing platform 53 is driven by the first lifting drive component 52 to rise and reset, so that the string gap film strip 2 adsorbed and fixed on the first film strip fixing platform 53 contacts the backboard 1 supported by the support 511.

[0099] The regularizing piece 103 is connected to a regularizing driving piece 104; the regularizing piece 103 is longitudinally arranged and slidably connected to the X-guide rail 101 or the Y-guide rail 102, and the regularizing piece 103 is driven by the regularizing driving piece 104 to approach or move away from the backboard 1 laid on the supporting platform 7. The regularizing piece 103 can be any component such as a correction block, a correction wheel, etc. that can apply force to the backboard 1 to move the position of the backboard 1. Optionally, the surface where the regularizing piece 103 contacts the backboard 1 is an arc-shaped surface to avoid excessive stress and damage to the backboard 1 when pushing the backboard 1. Exemplarily, the regularizing piece 103 is a correction wheel. Optionally, the contact surface between the regularizing piece 103 and the backboard 1 is covered with an elastic pad to provide a buffer when pushing the backboard 1, to avoid excessive stress and damage to the backboard 1 when pushing the backboard 1. The regularizing piece 103 can be a fixed height setting or a height-adjustable setting. When the height of the regulating piece 103 is adjustable, the regulating piece 103 can be fixed on a length-adjustable connector, and the connector is slidably connected to the X-guide rail 101 or the Y-guide rail 102. Alternatively, the regulating piece 103 can be slidably connected to the X-guide rail 101 or the Y-guide rail 102 through a detachable and replaceable connector, and the height of the regulating piece 103 can be adjusted by replacing connectors of different lengths. Alternatively, the regulating piece 103 can be equipped with a lifting drive assembly for driving the regulating piece to rise and fall, and the lifting drive assembly is slidably connected to the X-guide rail 101 or the Y-guide rail 102, and the height of the regulating piece 103 can be adjusted by driving the lifting drive assembly to rise and fall. Wherein, the X-guide rail 101 is moved along the second horizontal direction ( Figure 4 The Y guide rail 102 is arranged along the first horizontal direction ( Figure 4 Y direction in .

[0100] In some embodiments, reference Figure 7 As shown, the support platform 7 for inter-sheet film lamination includes a second film strip fixing platform 61. The second film strip fixing platform 61 is configured to absorb and fix the inter-sheet film strips 3 laid by the corresponding film laying assembly 8 and to support the backboard 1. The second film strip fixing platform 61 is provided with a number of adsorption holes 14 equal to the number of rows of inter-sheet film strips 3 to be laid, and the position of each row of adsorption holes 14 corresponds one-to-one with the position of the inter-sheet film strips 3 to be laid. After the inter-sheet film strips 3 are laid on the second film strip fixing platform 61, and the backboard 1 completes the inter-string film lamination and no longer needs to be corrected, the second film strip fixing platform 61 supports the backboard 1, making the film lamination mechanism for inter-sheet film lamination simpler and more compact.

[0101] Optional, such as Figure 7 and Figure 10As shown, the carrier platform 7 for inter-sheet film laminating in the inter-sheet film laminating mechanism 6 further includes a fifth lifting drive assembly 62 for driving the second film strip fixing platform 61 upward and downward. The second film strip fixing platform 61 is driven upward and downward by the fifth lifting drive assembly 62 to raise the receiving film. Optionally, the second film strip fixing platform 61 may be stationary, and the film laying head assembly 82 in the inter-sheet film laminating mechanism 6 may be driven upward and downward by a sixth lifting drive assembly (not shown) to lower and lay the inter-sheet film strip 3.

[0102] Optional, see Figure 10 As shown, the film laminating mechanism for laminating films between sheets further includes a punching assembly 11;

[0103] The punching component 11 is arranged below the supporting platform 7 of the sheet gap film laminating station 6A. An avoidance channel is provided on the supporting platform 7 of the sheet gap film laminating station 6A corresponding to the position of the sheet gap film strip 3 in the middle of the back panel 1. The punching component 11 is configured to pass through the avoidance channel to open a through hole 12 on the sheet gap film strip 3 in the middle of the back panel 1 corresponding to the position of the lead hole on the back panel 1.

[0104] By arranging a punching component 11 under the supporting platform of the sheet gap film laminating station, after the sheet gap film strip is pasted, the punching component 11 can implement the opening of a sheet gap film strip 3 in the middle of the backboard 1, so that during the subsequent glass bonding, the leads in the cell beads of the photovoltaic module extend through the opened through holes and the lead holes of the backboard and are installed with the junction box.

[0105] Optionally, the punching assembly 11 includes: a punch 111 arranged longitudinally and used to punch the intersheet film strip 3 in the middle of the back plate 1 , and a second lifting drive assembly 112 used to drive the punch 111 to rise and fall.

[0106] The punch 111 is driven by the second lifting drive assembly 112 to punch a through hole 12 on the intersheet membrane strip 3 in the middle of the back plate 1, and the punch 111 is driven to descend after the punching is completed. The punch only moves up and down in a straight line under the drive of the second lifting drive assembly 112, the travel path is simple, and the structure of the punching assembly 11 is more compact.

[0107] Optional, see Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, the carrying platform 7 is also used to adsorb the film strips. The carrying platform 7 is provided with an avoidance hole 13 for the heat-adhesive component 9 to pass through so as to heat the film strips carried and adsorbed on the carrying platform 7 .

[0108] The hot glue component 9 heats the film strip carried and adsorbed on the supporting platform 7 by rising linearly through the avoidance hole 13, and descends linearly to the avoidance low position after the heating is completed. The travel path is simple, and it is not easy to cause the position of the heating point to deviate, and the structure of the film-sticking mechanism is more compact.

[0109] Optionally, a plurality of film strip carrying positions are provided on the carrying platform 7, each of which is used to carry one film strip, and a hot-adhesive component 9 is correspondingly provided below each film strip carrying position of the carrying platform 7;

[0110] Each hot-adhesive component 9 is configured to translate along the length direction of the film strip carried by the corresponding film strip carrying position to sequentially heat the corresponding film strip above at least two points so that the film strip is adhered to the backboard.

[0111] By using a heat-bonding component 9 to sequentially heat the corresponding film strips above, the number of heat-bonding components can be reduced, thereby lowering the cost of the device.

[0112] Optionally, a first translation guide rail, a first translation drive assembly and a third lifting drive assembly (not shown) are provided below each film strip carrying position;

[0113] The first translation guide rail is parallel to the film strip at the corresponding film strip carrying position, the third lifting drive component is slidably connected to the first translation guide rail and is driven to translate by the first translation drive component, and the third lifting drive component is connected to the corresponding hot glue component 9 to drive the hot glue component 9 to lift and lower.

[0114] By cooperating with the first translation drive assembly and the third lifting drive assembly to drive the hot glue assembly 9 to translate and lift, the hot glue assembly 9 can heat at close range at least two points to be heated on the film strip in sequence. Through the guidance of the first translation guide rail, the path deviation of the hot glue assembly during the sequential point ironing process can be avoided, which leads to the position deviation of the hot glue point.

[0115] Optionally, a plurality of film strip carrying positions are provided on the carrying platform 7, each of which is used to carry one film strip, and at least two hot-adhesive components 9 are correspondingly provided below each film strip carrying position of the carrying platform 7, and the at least two hot-adhesive components 9 are arranged at intervals along the length direction of the film strip on the corresponding film strip carrying position;

[0116] At least two heat-adhesive components 9 are configured to simultaneously perform spot-scalding on the film strips at the corresponding film strip carrying positions above, so that the film strips are adhered to the back plate 1 .

[0117] The use of multiple heat-bonding components 9 to heat the corresponding film strips at the same time can improve the heat-bonding efficiency.

[0118] In some embodiments, a fourth lifting drive assembly 91 is further provided below the carrying platform 7;

[0119] Each hot-melt assembly 9 is connected to the fourth lifting drive assembly 91 and is driven by the fourth lifting drive assembly 91 to rise and fall simultaneously.

[0120] All the hot-adhesive components 9 are driven by the fourth lifting drive component 91 to rise and fall simultaneously, which can heat all the film strips above at the same time, improve the hot-adhesive efficiency, and simplify the structure of the film-sticking mechanism.

[0121] In some embodiments, the hot glue component 9 can heat the film strip locally by contact point heating so that the film strip is bonded to the back plate 1 by heat, or can heat the film strip by laser heating, hot air heating, electromagnetic heating or infrared heating. Figure 10 As shown, the hot-melt assembly 9 is a spot-perming assembly. Optionally, the spot-perming assembly includes a heat transfer block and a spot-perming head mounted on the heat transfer block. A heating rod and a thermocouple are mounted in the heat transfer block. The thermocouple controls the heating temperature of the heat transfer block by the heating rod. The heat transfer block transfers heat to the spot-perming head, which contacts the film strip to heat it. Optionally, the film laying assembly 82 for inter-string film lamination includes: a second translation guide rail (not shown), a second translation drive assembly (not shown), and a set of film laying head assemblies 82; the second translation guide rail is fixed to the support platform 7 of the inter-string film lamination station 5A and is arranged along the length direction of the inter-string film strip 2 to be laid.

[0122] A group of film laying head assemblies 82 are driven by the second translation drive assembly to lay two groups of string gap film strips 2 twice in the length direction of the string gap film strips 2, reducing the number of film laying heads and simplifying the film laying structure of the string gap film laying station.

[0123] The film laying head assembly 82 comprises a moving member and a film laying head (not shown) mounted on the moving member. The moving member is slidably connected to a second translation guide rail and driven by a second translation drive assembly. The number of film laying heads is equal to the number of sets of string-gap film strips 2 required for the string-gap film application station 5A. Each film laying head is spaced apart on the moving member in a direction perpendicular to the second translation guide rail. A set of film laying head assemblies, driven by the second translation drive assembly, lays two sets of string-gap film strips 2 in two steps along the length of the string-gap film strips 2, reducing the number of film laying heads and simplifying the film application structure of the string-gap film application station 5A.

[0124] Optional, see Figure 4 As shown, the film laying assembly 8 for inter-string film lamination includes: a third translation guide rail 81, a third translation drive assembly (not shown) and two sets of film laying head assemblies 82; the third translation guide rail 81 is fixed to the supporting platform 7 of the inter-string film lamination station 5A and is arranged along the length direction of the inter-string film strip 2 to be laid;

[0125] The two sets of film laying head assemblies 82 are configured to be driven by the third translation drive assembly to respectively lay two sets of gap film strips 2 on the carrier platform 7 while translating on the third translation guide rail 81;

[0126] Each film laying head assembly 82 includes: a moving part 821 and a film laying head 822 mounted on the moving part 821;

[0127] The movable part 821 is slidably connected to the third translation guide rail 81 and is driven by the third translation drive assembly. The number of film laying heads 822 is equal to the number of a group of string gap film strips 2 required for the string gap film laminating station 5A. The film laying heads 822 are arranged at intervals on the movable part 821 along a direction perpendicular to the third translation guide rail 81.

[0128] The two groups of film laying head assemblies 82 are driven by the third translation drive assembly to simultaneously lay the film of two groups of gap film strips 2, which can complete the laying of two groups of gap film strips on the backboard 1 at one time, thereby improving the film laying efficiency.

[0129] Optionally, the film laying assembly 8 for inter-sheet film lamination includes a fourth translation guide rail 83, a fourth translation drive assembly (not shown), and a film laying head assembly 82; the fourth translation guide rail 83 is fixed to the support platform 7 of the inter-sheet film lamination station 6A and is arranged along the length direction of the inter-sheet film strip 3 to be laid;

[0130] The film laying head assembly 82 is configured to be driven by the fourth translation drive assembly to lay the sheet gap film strip 3 on the carrier platform 7 while translating on the fourth translation guide rail 83;

[0131] The film laying head assembly 82 includes: a moving part 821 and a film laying head 822 mounted on the moving part 821;

[0132] The movable part 821 is slidably connected to the fourth translation guide rail 83 and is driven by the fourth translation drive assembly. The number of film laying heads 822 is equal to the number of sheet gap film strips 3 required for the sheet gap film laminating station 6A. The film laying heads 822 are arranged on the movable part 821 at intervals along a direction perpendicular to the fourth translation guide rail 83.

[0133] The film laying head 822, which has the same number of inter-sheet film strips 3 as that required by the inter-sheet film laminating station 6A, can be translated along the length direction of the inter-sheet film strips 3 under the drive of the fourth translation drive component, and can complete the laying of all inter-sheet film strips 3 at one time.

[0134] Optional, see Figure 11 As shown, the film laying head 822 includes: a connecting plate 8221, and a film strip guide 8222, a film strip feeding member 8223, a cutting member 8224 and a pressing member 8225 respectively installed on the connecting plate 8221;

[0135] The connecting plate 8221 is installed on the corresponding moving part 821, and the membrane strip guide 8222 is installed on the top of the connecting plate 8221 to guide and limit the membrane strip;

[0136] The film strip feeding member 8223 is provided on one side of the film strip guide member 8222 adjacent to the carrier platform 7 and is used to control the movement of the film strip;

[0137] The cutting piece 8224 and the pressing piece 8225 are both located at the bottom end of the connecting plate 8221. The pressing piece 8225 is used to control the pressing and loosening of the film strip, and the cutting piece 8224 is used to cut the film strip; the film strip is limited and guided by the film strip guide piece 8222 to enter the film strip feeding piece 8223, and is sent out from the film strip feeding piece 8223 and pressed by the pressing piece 8225 to be laid on the supporting platform 7. After completing a laying stroke, it is cut by the cutting piece 8224.

[0138] The film strip is guided and limited by the film strip guide 8222, the film strip feeding part 8223 controls the movement of the film strip, the pressing part 8225 presses the film strip on the supporting platform, and the cutting part 8224 cuts the film strip, so that the film strip can be accurately laid on the supporting platform 7 to avoid the position of the film strip from being offset during the laying process.

[0139] Optional, such as Figure 3 As described above, the transport mechanism 4 includes a first transport component 41 and a second transport component 42;

[0140] The first transport assembly 41 is provided on one side of the film laminating mechanism for laminating the backboard 1 between strings, and is used to transport the backboard 1 from the backboard feeding area to the carrying platform 7 of the inter-string film laminating station 5A;

[0141] The second conveying assembly 42 is arranged between the two film-laminating mechanisms, and is used to convey the backboard 1 from the supporting platform 7 of the string gap film-laminating station 5A to the supporting platform 7 of the sheet gap film-laminating station 6A; the conveying mechanism 4 conveys the backboard 1 in the feeding area to the string gap film-laminating station 5A to complete the inter-string film-laminating, and then conveys the backboard to the sheet gap film-laminating station 6A to complete the inter-sheet film-laminating, thereby saving conveying labor and improving production efficiency.

[0142] In the description of this specification, the first lifting drive assembly, the second lifting drive assembly, the third lifting drive assembly, and the fourth lifting drive assembly can be any device or structure such as a linear motor or a cylinder that can drive the cooperating components to perform linear lifting and lowering, and this application does not impose specific restrictions on this. Similarly, the first translation drive assembly, the second translation drive assembly, the third translation drive assembly, and the fourth translation drive assembly can also be any device or structure such as a linear motor or a cylinder that can drive the cooperating components to perform translation, and this application does not impose specific restrictions on this.

[0143] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0144] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0145] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A backplane film laminating device, characterized in that: include: A transport mechanism and two film laminating mechanisms; one of the film laminating mechanisms is used to implement inter-string film laminating on the backplane, and the other film laminating mechanism is used to implement inter-sheet film laminating on the backplane. The transport mechanism is used to transport the backplane to the inter-string film laminating station for inter-string film laminating, and after the inter-string film laminating is completed, transport the backplane from the inter-string film laminating station to the sheet film laminating station for inter-sheet film laminating; The film-sticking mechanism includes a supporting platform, a film-laying assembly and a hot-melt assembly; the supporting platform is used to carry the film strip and the backboard; the film-laying assembly is arranged above the supporting platform and is used to lay the film strip on the supporting platform; the hot-melt assembly is arranged below the supporting platform and is used to heat the film strip laid on the supporting platform from below so that the film strip is bonded to the backboard laid thereon.

2. The backplane film laminating device according to claim 1, characterized in that: The carrier platform for film lamination between strings comprises: a frame, a first lifting drive assembly and a first film strip fixing platform arranged transversely in the frame; The rack is configured to support the backplane at a top end; The first membrane strip fixing platform is configured to adsorb and fix the string gap membrane strips laid by the corresponding membrane laying assembly, and the first membrane strip fixing platform is provided with adsorption holes in the same number of rows as the number of rows of the string gap membrane strips to be laid, and the position of each row of the adsorption holes corresponds one-to-one to the position of the string gap membrane strips to be laid; The first lifting drive assembly is drivingly connected to the first film strip fixing platform and is used to drive the first film strip fixing platform to rise and fall.

3. The backplane film laminating device according to claim 2, characterized in that: There are at least two first film strip fixing platforms, each of which is used to absorb and fix at least one string gap film strip; the top surface of the frame is provided with at least one support member for carrying the back plate; An escape gap is provided between two adjacent first film strip fixing platforms for evading the support member during lifting.

4. The backplane film laminating device according to claim 1, characterized in that: The film-laminating mechanism for inter-string film laminating further includes a regularization component, which is configured to clamp the backboard on the carrying platform transported to the inter-string film laminating station and correct the position of the backboard.

5. The backplane film laminating device according to claim 4, characterized in that: The aligning assembly includes an X-guide rail, a Y-guide rail, and a pair of aligning pieces. At least one aligning piece is provided on each side of the carrier platform for inter-string film lamination. The X-guide rail and the Y-guide rail are both arranged transversely and perpendicular to each other. The regulating member is configured to slide along the X-guide rail or the Y-guide rail to approach or move away from the back plate laid on the supporting platform.

6. The backplane film laminating device according to claim 1, characterized in that: The supporting platform for inter-sheet film lamination includes a second film strip fixing platform, which is configured to adsorb and fix the inter-sheet film strips laid by the corresponding film laying assembly and to carry the backing plate. The second film strip fixing platform is provided with adsorption holes whose number is equal to the number of rows of inter-sheet film strips to be laid, and the position of each row of the adsorption holes corresponds one-to-one to the position of the inter-sheet film strips to be laid.

7. The backplane film laminating device according to claim 1, characterized in that: The film-laminating mechanism for laminating films between sheets further comprises a punching assembly; The punching assembly is arranged below the supporting platform of the sheet gap film laminating station, and an avoidance channel is provided on the supporting platform of the sheet gap film laminating station corresponding to the position of the sheet gap film strip in the middle of the back panel. The punching assembly is configured to pass through the avoidance channel to open a through hole on the sheet gap film strip in the middle of the back panel corresponding to the position of the lead hole on the back panel.

8. The backplane film laminating device according to claim 7, characterized in that: The punching assembly includes: a punch that is longitudinally arranged and used to punch holes in the intersheet film strips in the middle of the back plate, and a second lifting drive assembly for driving the punch to move up and down.

9. The backplane film laminating device according to claim 1, characterized in that: The carrying platform is also used to absorb each film strip. The carrying platform is provided with an avoidance hole for the hot-adhesive component to pass through so as to heat the film strip carried and absorbed on the carrying platform.

10. The backplane film laminating device according to claim 1, characterized in that: A plurality of film strip carrying positions are provided on the carrying platform, each of the film strip carrying positions is used to carry a film strip, and a thermal bonding component is correspondingly provided below each of the film strip carrying positions on the carrying platform; Each of the heat-adhesive components is configured to translate along the length direction of the film strip carried by the corresponding film strip carrying position to sequentially heat at least two points on the corresponding film strip above so that the film strip is adhered to the back panel.

11. The backplane film laminating device according to claim 10, characterized in that: A first translation guide rail, a first translation drive assembly and a third lifting drive assembly are provided below each of the film strip carrying positions; The first translation guide rail is parallel to the film strip at the corresponding film strip carrying position, the third lifting drive component is slidably connected to the first translation guide rail and is driven to translate by the first translation drive component, and the third lifting drive component is connected to the corresponding hot glue component to drive the hot glue component to rise and fall.

12. The backplane film laminating device according to claim 1, characterized in that: A plurality of film strip carrying positions are provided on the carrying platform, each of the film strip carrying positions is used to carry a film strip, and at least two of the thermal adhesive components are correspondingly provided below each of the film strip carrying positions on the carrying platform, and the at least two thermal adhesive components are spaced apart along the length direction of the film strip on the corresponding film strip carrying position; At least two of the heat-adhesive components are configured to simultaneously perform spot-scalding on the film strips at the corresponding film strip carrying positions above, so that the film strips are adhered to the back panel.

13. The backplane film laminating device according to claim 12, characterized in that: A fourth lifting drive assembly is further provided below the carrying platform; Each of the heat-bonding components is connected to the fourth lifting drive component and is driven by the fourth lifting drive component to rise and fall simultaneously.

14. The backplane film laminating device according to claim 1, characterized in that: The film laying assembly for film lamination between strings comprises: a second translation guide rail, a second translation drive assembly and a set of film laying head assemblies; the second translation guide rail is fixed to the supporting platform of the film lamination station between strings and is arranged along the length direction of the film strip between strings to be laid; A group of the film laying head assemblies is configured to be driven by the second translation drive assembly to lay two groups of gap film strips in batches on the carrier platform while translating on the second translation guide rail; The film laying head assembly includes: a moving part and a film laying head installed on the moving part; The movable member is slidably connected to the second translation guide rail and is driven by the second translation drive assembly. The number of the film laying heads is equal to the number of a group of string gap film strips required for the string gap film laminating station, and each of the film laying heads is arranged on the movable member at intervals along a direction perpendicular to the second translation guide rail.

15. The backplane film laminating device according to claim 1, characterized in that: The film laying assembly for inter-string film laying includes: a third translation guide rail, a third translation drive assembly, and two sets of film laying head assemblies; the third translation guide rail is fixed to the supporting platform of the inter-string film laying station and is arranged along the length direction of the inter-string film strip to be laid; The two groups of film laying head assemblies are configured to be driven by the third translation drive assembly to respectively lay two groups of gap film strips on the carrier platform while translating on the third translation guide rail; Each set of the film laying head assembly comprises: a moving part and a film laying head mounted on the moving part; The movable member is slidably connected to the third translation guide rail and is driven by the third translation drive assembly. The number of the film laying heads is equal to the number of a group of string gap film strips required for the string gap film laminating station, and the film laying heads are arranged on the movable member at intervals along a direction perpendicular to the third translation guide rail.

16. The backplane film laminating device according to claim 1, characterized in that: The film laying assembly for inter-sheet film lamination includes a fourth translation guide rail, a fourth translation drive assembly, and a film laying head assembly; the fourth translation guide rail is fixed to the supporting platform of the inter-sheet film lamination station and is arranged along the length direction of the inter-sheet film strip to be laid; The film laying head assembly is configured to be driven by the fourth translation drive assembly to lay the sheet gap film strips on the carrier platform while translating on the fourth translation guide rail; The film laying head assembly includes: a moving part and a film laying head installed on the moving part; The movable member is slidably connected to the fourth translation guide rail and is driven by the fourth translation drive assembly. The number of the film laying heads is equal to the number of sheet gap film strips required for the sheet gap film laminating station, and the film laying heads are arranged on the movable member at intervals along a direction perpendicular to the fourth translation guide rail.

17. The backplane film laminating device according to any one of claims 14 to 16, characterized in that: The film laying head includes: a connecting plate, and a film strip guide, a film strip feeding part, a cutting part and a pressing part respectively installed on the connecting plate; The connecting plate is mounted on the corresponding moving member, and the membrane strip guide is mounted on the top of the connecting plate to guide and limit the membrane strip; The film strip feeding member is arranged on a side of the film strip guide member adjacent to the carrying platform, and is used to control the movement of the film strip; The cutting piece and the pressing piece are both located at the bottom end of the connecting plate, the pressing piece is used to control the pressing and loosening of the film strip, and the cutting piece is used to cut the film strip; the film strip is limited and guided by the film strip guide piece to enter the film strip feeding piece, and is sent out from the film strip feeding piece and pressed by the pressing piece to be laid on the supporting platform, and is cut by the cutting piece after completing a laying stroke.

18. The backplane film laminating device according to claim 1, characterized in that: The transport mechanism includes a first transport component and a second transport component; The first transport assembly is provided on one side of the film laminating mechanism for laminating films between strings on the backboard, and is used to transport the backboard from the backboard feeding area to the carrying platform of the string gap film laminating station; The second transport assembly is disposed between the two film laminating mechanisms and is used to transport the backplane from the carrying platform of the string gap film laminating station to the carrying platform of the sheet gap film laminating station.

Images