Quick-disassembly heat-sheet laminator and heating plate tightening device used therein

Abstract

The present invention addresses the deficiency of existing multi-layer laminators. In multi-layer laminators, due to the small distance between adjacent lamination worktables, it is impossible to replace the electric heating plate when using an electric heating plate to heat the battery module. The present invention provides a quick-disassembly heat-sheet type laminator and a heating plate clamping device used therein. It includes a bracket and a bracket lifting device. The top of the bracket forms a support plane for supporting the electric heating plate. The lifting direction of the bracket lifting device is perpendicular to the support plane. Under the action of the bracket lifting device, the bracket rises or falls, so that the electric heating plate rises or falls. Using the quick-disassembly heat-sheet type laminator and the heating plate clamping device provided by the present invention is very convenient. The height of the space accommodating the heating plate clamping device is much smaller than the height of the space accommodating the operator. The middle layer formed by the lamination worktable of the upper-layer lamination host and the upper cover of the lower-layer lamination host can operate synchronously as a whole, making it possible to use the electric heating plate in a multi-layer laminator.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic laminators, and particularly relates to a laminator with a heating device being a heating sheet and a heating plate pressing device used therefor. Background Art

[0002] In the prior art, the structure of the current mainstream multi-layer laminator is that the lamination workbench serves as both the support structure for the upper-layer photovoltaic module of the laminator and the upper cover of the lower-layer laminator, forming the middle layer of the multi-layer laminator. However, with this structure, the distance between adjacent middle layers is very small, only about 100 mm. And the fixed connection method between the electric heating plate in the prior art and the lamination workbench is by using bolt connection. When replacing the electric heating plate, the bolts need to be removed one by one and the electric heating plate needs to be removed. When removing the bolts, people need to enter under the lamination workbench, and obviously, the existing multi-layer laminators do not have space for personnel to enter and operate. Therefore, the electric heating plate cannot be used as the heating device for photovoltaic modules in multi-layer laminators. To solve the technical problem that in the prior art, due to the structure of the multi-layer laminator, the electric heating plate cannot be used as the heating device for photovoltaic modules, our company has conducted research and development on the fixed installation of the electric heating plate. A flatbed truck that can be pushed or lifted is used as the clamping device for the electric heating plate, and the electric heating plate is clamped under the flatbed truck body and the lamination workbench. However, this structure requires pushing the flatbed truck to move along the slope, and it is necessary to adjust the horizontal level of the flatbed truck before and after to make the electric heating plate keep closely attached to the lower surface of the lamination workbench, and it is also necessary to adjust the fastening screws to hold the flatbed truck body in position. Therefore, each operation is relatively troublesome, and although the flatbed truck reduces the space for disassembling and assembling the electric heating plate, the space required is still relatively large. Summary of the Invention

[0003] The purpose of the present invention is to provide a quick-disassembly and quick-assembly heating-sheet type laminator and a heating plate pressing device used therefor, aiming at the deficiency in the prior art that in a multi-layer laminator, due to the small distance between adjacent lamination workbenches, it is impossible to replace the electric heating plate when heating the battery module with the electric heating plate.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions:

[0005] An electric heating plate tightening device for a photovoltaic module laminator comprises a bracket and a bracket lifting device, wherein the top of the bracket constitutes a support plane for supporting the electric heating plate, and the lifting direction of the bracket lifting device is perpendicular to the support plane. Under the action of the bracket lifting device, the bracket rises or falls, thereby raising or lowering the electric heating plate. The bracket lifting device comprises a threaded shaft, a rotating shaft and a meshing steering wheel group. The axis of the threaded shaft is perpendicular to the axis of the rotating shaft. The top of the threaded shaft is threadedly connected to the bracket. The bracket moves linearly along the threaded shaft without rotating. The lower end of the threaded shaft is meshed with the rotating shaft through the meshing steering wheel group to transmit the transmission of the horizontal direction of the rotating shaft into the transmission of the threaded shaft in the vertical direction. The operating end of the rotating shaft is connected to the rotation drive device.

[0006] A heat-insulating layer is provided below the electric heating plate, and the heat-insulating layer and the electric heating plate are fixedly connected into one body;

[0007] The meshing steering wheel assembly is a bevel gear set or a worm gear transmission pair. Preferably, an internal nut is provided between the rotating shaft and the bracket, and the bracket is sleeved and fixedly connected to the internal nut. The lower end of the internal nut is provided with an axial limit groove, and a limit block is provided on the gearbox housing, or an axial limit groove is provided on the gearbox housing, and a limit block is provided on the rotating shaft, and the limit block is located in the limit groove to prevent the bracket from rotating with the rotating shaft; and / or the threaded shaft is preferably a T-shaped threaded shaft.

[0008] A quick-detachable hot plate laminator includes a laminating workbench for supporting photovoltaic modules and a heating device for heating the photovoltaic modules. The heating device is an electric heating plate, which is pressed under the laminating workbench by an electric heating plate pressing device, so that the electric heating plate and the laminating workbench are in close contact and fixed connection. When the pressing device falls back, the electric heating plate falls back and separates from the laminating workbench. The electric heating plate pressing device adopts the above-mentioned structure.

[0009] The laminating machine is a multi-layer press machine, wherein the laminating workbench of the upper laminating main machine and the laminating workbench of the lower laminating main machine are arranged opposite to each other to form a space for accommodating the electric heating plate tightening device, the laminating workbench of the upper laminating main machine, the upper cover of the lower laminating main machine and the electric heating plate tightening device located therebetween constitute an intermediate layer, and at least two intermediate layers are stacked one on top of the other;

[0010] The laminator also includes a photovoltaic module conveying device, the photovoltaic module conveying device includes an endless belt transmission device, the endless belt transmission device includes at least two transmission shafts located on the front and rear sides of the laminator, the endless belt is sleeved on the front and rear transmission shafts and surrounds the laminating workbench and the lower box structure located below the laminating workbench;

[0011] The loop belt drive device further includes a chain transmission device, which includes a shaft group composed of transmission shafts and sprockets arranged on both sides of each shaft. Chains are respectively arranged on both sides of the shaft group, and the chains are sleeved on the sprockets on the corresponding side. The loop belt is connected to the chains, and the loop belt is driven to operate by the chains. It also includes a chain tensioning device, which includes a bearing seat fixing frame and a bearing seat sliding driving device. The bearing seat is driven by the bearing seat sliding driving device to move towards or away from another bearing on the bearing seat fixing frame, so as to tension or relax the chains;

[0012] The bearing seat sliding driving device includes a loose nut sleeve, a tight nut sleeve and a guiding device. The guiding device includes a guiding rod, and two parallel chutes or slide rails arranged on the bearing seat fixing frame and perpendicular to the axis of the transmission shaft. Both ends of the guiding rod are fixedly connected to the bearing seat and are slidably connected to the chutes or slide rails. The loose nut sleeve includes a loose nut, a loose screw rod and a loose bearing. The loose nut and the loose screw rod form a linear motion pair. One end of the loose screw rod is hingedly connected to the guiding rod, and the other end is threadedly connected to the loose nut. The loose nut is rotatably connected to the bearing seat fixing frame through the loose bearing, and the loose nut is axially limited by an axial limiting member; the tight nut sleeve includes a tight bearing, a tight nut and a tight screw rod. The tight nut and the tight screw rod form a linear motion pair. The tight nut is axially limited by a limiting member. One end of the tight screw rod is hingedly connected to the guiding rod, and the other end is threadedly connected to the tight nut. The tight screw rod is rotatably connected to the bearing seat fixing frame;

[0013] There are two guiding rods, which are arranged in parallel and of equal length. The loose nut and the tight nut are respectively hingedly connected to the adjacent guiding rods, and the axes of the loose screw rod and the tight screw rod are collinear; and / or the loose nut and the tight nut are both composed of a nut body and a nut rotating sleeve. The thread is arranged on the nut body, and the inner diameter of the nut rotating sleeve is larger than the outer diameter of the tight screw rod or the loose screw rod, and it is a clearance fit.

[0014] The present invention has the following beneficial effects:

[0015] For the hot plate laminator and the heating plate clamping device adopting the structure of the present invention, no connection structure is provided on the lamination workbench and the electric heating plate any more, and no connecting piece is used for fixed connection. The electric heating plate is clamped by the electric heating plate clamping device. Since the supporting plane can rise or fall with the different rotation directions of the threaded shaft, when the supporting plane of the electric heating plate clamping device rises, the electric heating plate is in contact connection with the lamination workbench, so that the electric heating plate is fixedly connected to the lamination workbench in a fitting manner. After the electric heating plate clamping device falls, the electric heating plate is separated from the lamination workbench, and the electric heating plate is freely located on the supporting plane of the clamping device, forming a channel for the electric heating plate to move between the supporting plane of the heating plate clamping device and the lamination workbench. Therefore, the electric heating plate can be pulled out from the supporting plane by pulling the electric heating plate, and after replacement, the electric heating plate can be sent to the supporting plane of the electric heating plate clamping device by pushing, sent below the lamination workbench, and then the electric heating plate is fitted below the lamination workbench by the rising of the supporting plane of the electric heating plate clamping device, so as to fixedly arrange the electric heating plate below the lamination workbench. Therefore, the operator can operate outside the machine table without entering below the lamination workbench, and the operation is very convenient and fast. There is no need to disassemble and assemble the bolts connecting the lamination workbench and the electric heating plate any more, saving the disassembly and assembly process, time and effort. For the clamping device adopting the structure of the present invention, the tops of the brackets form a supporting plane parallel to the lamination workbench below and perpendicular to the threaded shaft. Therefore, only by rotating the threaded shaft forward and backward can the vertical lifting and self-locking of the brackets be realized, and there is no need to make horizontal adjustment and locking adjustment any more, and the operation is very convenient.

[0016] For the multi-layer laminator adopting the structure of the present invention, the lamination workbench of the upper-layer lamination main machine and the upper cover of the lower-layer lamination main machine are separately or integrally arranged, and a space for accommodating the electric heating plate clamping device is arranged between them. The space for accommodating the electric heating plate clamping device only needs to accommodate the gearbox, the threaded shaft and the brackets. Since the stroke required for the clamping and falling back of the electric heating plate is relatively small, the height of the space for accommodating the electric heating plate clamping device is much smaller than the height of the space for accommodating the operator. The middle layer formed by the lamination workbench of the upper-layer lamination main machine and the upper cover of the lower-layer lamination main machine can operate synchronously as a whole, making it possible to use the electric heating plate for the multi-layer laminator. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of an embodiment of the middle layer formed by the lamination workbench of the upper-layer lamination main machine and the upper cover of the lower-layer lamination main machine of the multi-layer laminator of the present invention;

[0018] Figure 2 is Figure 1 the left view schematic diagram;

[0019] Figure 3 is Figure 1 and Figure 4Partial enlarged schematic diagram of A;

[0020] Figure 4 It contains Figure 1 Schematic structural diagram of an embodiment of a multi-layer laminator with the intermediate layer shown, which shows three intermediate layers;

[0021] Figure 5 Schematic structural diagram of an embodiment of a single-layer laminator provided with the heating plate pressing device of the present invention;

[0022] Figure 6 Schematic structural diagram of an embodiment of a transmission device for a multi-layer laminator photovoltaic module;

[0023] Figure 7 Schematic structural diagram of an embodiment of a chain tensioning device;

[0024] Figure 8 Schematic sectional view of an embodiment of a chain tensioning device;

[0025] Figure 9 Schematic three-dimensional diagram of an embodiment of a multi-layer laminator;

[0026] Figure 10 It is Figure 9 Partial schematic diagram of I in;

[0027] Explanation of reference numerals

[0028] 101, Laminating workbench; 102, Electric heating plate; 103, Heat insulation layer; 104, Frame; 105, Upper cover; 203, Lifting device; 2031, Rotating shaft; 2032, Meshing steering wheel group; 2033, Threaded shaft; 2034, Bracket; 2035, Axial limiting groove; 2036, Handle; 2037, Limiting block; 2038, Through shaft adjustment seat; 2039, Gear box; 2040, Mounting plate; 2041, Central support plate; 2042, Column;

[0029] 300, Circulating belt transmission device; 301, Chain; 302, Sprocket; 303, Transmission shaft; 305, Circulating belt;

[0030] Chain tensioning device; 410, Bearing seat fixing frame; 420, Bearing seat sliding driving device, 421, Rotating nut loose sleeve; 422, Rotating nut tightening sleeve; 423, Guide device, 4231, Guide rod; 4232, Chute or slide rail; 4211, Loose nut; 4212, Loose screw; 4213, Loose bearing; 4214, Loose bracket; 4215, Nut loose rotating sleeve; 4221, Tightening screw; 4222, Tightening nut; 4223, Nut tightening rotating sleeve; 4224, Tightening bearing; 4225, Axial limiting member; 4233, Shoulder screw. Detailed implementation manners

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Wherein the same components are denoted by the same reference numerals. This specific embodiment is only an interpretation of the present invention and does not limit the present invention.

[0032] The present invention provides a laminator with a novel structure to solve the installation problem of the heating plate. The laminator of this structure can be single-layer or multi-layer. The laminator of the present invention structure also solves the problem that the multi-layer laminator cannot replace the electric heating plate, and at the same time solves the problem that when disassembling and assembling the heating plate of the existing single-layer laminator, it is necessary to disassemble and assemble the screws one by one, which is time-consuming and laborious.

[0033] As Figures 1-4As shown, the laminator of the present invention includes a laminating workbench 101 for supporting photovoltaic modules and an electric heating plate 102 for heating photovoltaic modules. The electric heating plate is located below the laminating workbench. The electric heating plate tightening device tightens the electric heating plate so that the electric heating plate is adhered to the bottom of the laminating workbench and continues to adhere, thereby realizing a fixed connection between the electric heating plate and the laminating workbench. The electric heating plate tightening device of the following structure can be adopted, including a bracket 2034 and a bracket lifting device 203. The top of the bracket constitutes a supporting plane for supporting the electric heating plate. The lifting device 203 includes a threaded shaft 2033, a rotating shaft 2031 and an engaging steering wheel group 2032. The axis of the threaded shaft and the axis of the rotating shaft are arranged to intersect vertically, the axis of the threaded shaft is arranged vertically to the lower surface of the laminating workbench, the axis of the rotating shaft 2031 is arranged parallel to the lower surface of the laminating workbench, the top of the threaded shaft is threadedly connected to the bracket, and the engaging connection end of the bottom of the threaded shaft and the rotating shaft is engaged and transmitted through the engaging steering wheel group. The engaging steering wheel group can use a bevel gear or a worm gear transmission pair for steering transmission. The operating end of the rotating shaft is located outside the laminating frame body and can be connected to the motor drive device. A handle 2036 can also be provided to rotate the rotating shaft by shaking the handle. In a specific embodiment, a gearbox 2039 and a through-shaft adjustment seat 2038 are provided. A bearing is provided on the gearbox wall. The meshing connection end of the rotating shaft is rotatably connected to the gearbox via the bearing. A bearing is provided on the through-shaft adjustment seat. The rotating shaft is rotatably connected to the through-shaft adjustment seat via the bearing. The lower end of the threaded shaft is rotatably connected to the gearbox via the bearing. Preferably, an internal nut is provided between the threaded shaft and the bracket. The bracket is sleeved outside the internal nut and is fixedly connected to the internal nut. The lower end of the internal nut is provided with an axial limit groove 2035. A limit block 2037 is provided on the gearbox housing. Alternatively, an axial limit groove 2035 is provided on the gearbox housing and a limit block 2037 is provided on the rotating shaft. The limit block is located in the limit groove to prevent the bracket from rotating with the rotating shaft. A more preferred embodiment is to provide a mounting plate 2040 at the protruding end of the rotating shaft. The mounting plate and the rotating shaft are arranged perpendicularly. A handle is provided on the mounting plate. The axis of the handle is arranged parallel to the axis of the rotating shaft. It is best to use a T-type threaded shaft. The T-type thread has a self-locking function and is not affected by equipment vibration or other factors. It can lock the electric heating plate to fit the lower surface of the laminating workbench and increase the speed of the bracket. During operation, the shaft is rotated by shaking the handle or by driving the motor to drive the shaft. The shaft drives the bevel gear to move. The bevel gear converts the horizontal rotation into vertical rotation. The bevel gear drives the T-type threaded shaft to rotate. Under the limit of the limit slot, the bracket rises along the threaded shaft and presses the electric heating plate tightly. When the electric heating plate needs to be removed, the shaft is rotated in the opposite direction to rotate the threaded shaft in the opposite direction to lower the bracket, driving the electric heating plate and the insulation layer to descend together. The insulation layer and the electric heating plate can be pulled out and replaced together. After replacement, the electric heating plate and the insulation layer are placed on the bracket, and the handle is rotated again to rotate the threaded shaft to raise the bracket until the electric heating plate fits the lower surface of the laminating workbench, completing the disassembly and assembly of the electric heating plate.Among them, the gearbox and the coaxial adjustment seat are both fixedly arranged above the top of the upper cover.

[0034] Preferably, a heat preservation layer 103 is arranged below the electric heating plate, and the heat preservation layer is fixedly connected to the electric heating plate. Usually, the heat preservation layer is made of a hard material, and the electric heating plate and the heat preservation layer are fixedly connected together to form an integral body and are lifted or lowered together. Preferably, a central support plate 2041 is fixedly arranged at the top of the threaded shaft 2033. The central support plate is fixedly connected to the top of the threaded shaft through a column 2042. The top of the central support plate 2041 is flush with the top of the support plane to form a part of the support plane.

[0035] The above laminator structure can be used for a single-layer laminator or a multi-layer laminator. When it is a single-layer laminator, the electric heating plate tightening device is fixedly arranged on the ground or fixedly connected to the frame.

[0036] When it is used for a multi-layer laminator, the electric heating plate tightening device is fixedly arranged on the top of the upper cover of the laminating main machine located in the lower layer. That is to say, the laminating workbench of the laminating main machine located in the upper layer, the workbench of the laminating main machine located in the lower layer, and the electric heating plate tightening device arranged between the two form an intermediate layer, and each intermediate layer forms a laminating unit and is arranged adjacent to each other up and down.

[0037] The multi-layer laminator of the present invention further includes a photovoltaic module conveying device. The photovoltaic module conveying device includes a circulating belt for conveying the photovoltaic module, and the circulating belt 305 is driven by a circulating belt driving device 300 to run in a cycle. The circulating belt driving device includes at least two transmission shafts 303 located on the front and rear sides of the laminator. The circulating belt is sleeved on the front and rear transmission shafts and runs around the lamination workbench and the upper cover. It also includes a chain conveying device. A chain conveying device is respectively arranged on both sides of the lamination workbench. The sprockets 302 of the chain conveying device are coaxially connected to the corresponding transmission shafts respectively. The chain 301 is sleeved on the sprockets. The two sprockets are arranged in parallel. The circulating belt is fixed and supported in its width direction by a pull rod assembly (not shown in the figure). The pull rod assembly spans between the chains on both sides, and the pull rod is perpendicular to the running direction of the circulating belt. The driving device is fixedly connected to the main transmission shaft. Driving the transmission shaft to rotate drives the chain to run. One of the transmission shafts is movable along the running direction of the circulating belt to form a movable transmission shaft. The position of the movable transmission shaft is adjusted by a chain tensioning device 400 so as to adjust the distance between the two transmission shafts and thus adjust the tension of the chain. The chain tensioning device includes a bearing seat fixing frame 410 and a bearing seat sliding driving device 420. The bearing seat of the movable transmission shaft is driven by the bearing seat sliding driving device to move towards or away from the other transmission shaft on the bearing seat fixing frame and is fixed and locked at the limiting position. The bearing seat sliding driving device includes a rotating nut loose sleeve 421, a rotating nut tight sleeve 422 and a guiding device 423. The guiding device includes a guiding rod 4231 and two parallel chutes or slide rails 4232. The chutes or slide rails are arranged on the bearing seat fixing frame perpendicular to the axis of the transmission shaft. The guiding rod is perpendicular to the chutes or slide rails, that is, parallel to the axis of the transmission shaft. Its two ends are respectively slidably connected to the slide rails or chutes through sliders or pulleys. The rotating nut loose sleeve 421 includes a loose nut 4211 and a loose screw 4212. The loose nut and the loose screw are threadedly connected to form a linear motion pair. A loose bearing 4213 is fixedly connected outside the loose nut. The loose bearing is rotatably arranged on a loose bracket 4214. The loose bracket is fixedly connected to the bearing seat fixing frame. Thus, when the loose screw 4212 moves, the loose nut 4211 rotates. The rotating nut tight sleeve 422 includes a tight screw 4221 and a tight nut 4222. An axial limiting member 4225 for axially limiting the tight nut is arranged on the bearing seat fixing frame. The tight screw and the tight nut form a linear motion pair. The tight screw is rotatably arranged on the bearing seat fixing frame through a bearing. The loose screw and the tight screw are respectively located on both sides of the bearing seat fixing frame and are both perpendicular to the axis of the transmission shaft. The connecting ends of the loose screw and the tight screw are respectively hingedly connected to the guiding rod. The bearing seat is fixedly connected to the guiding rod. Preferably, the guiding rod is slidably connected to the slide rail or chute through a shoulder screw, and the bearing seat is fixedly connected to the guiding rod through the shoulder screw. In this way, the structure is simple and convenient for assembly operation.It is preferably to set two guide rods fixedly connected to the bearing seat respectively. The two guide rods are arranged in parallel with a certain distance between them. The tightening screw rod and the loosening screw rod are respectively hinged to the adjacent guide rods. In this way, the bearing seat is fixedly connected to the guide rods through four points, making the movement of the bearing seat more stable. The two ends of the chute are respectively the loosest limit position and the tightest limit position. When using a slide rail, a stop structure is arranged at both ends of the slide rail to form the loosest limit position and the tightest limit position. When it is necessary to disassemble and assemble the electric heating plate, the rotating loosening nut is rotated by a ratchet wrench or an electric and pneumatic motor, so that the loosening screw rod moves, thereby driving the tightening screw rod to move. The tightening nut rotates, and the loosening sleeve and the rotating nut tightening sleeve are tightened. The loosening screw rod and the tightening screw rod realize telescoping under the limit of the guide rods, driving the bearing seat to move, thereby acting on the moving transmission shaft to move towards or away from the other transmission shaft, so as to realize the relaxation or tension of the chain. When reaching the loosening limit position, the loosest state of the chain can be realized. Lifting the falling chain maximizes the operable space between the upper and lower adjacent lamination workbenches, provides a larger space for the extraction of the electric heating plate, and makes the extraction operation of the electric heating plate more convenient.

Claims

1. An electric heating plate tightening device for a photovoltaic module laminator, characterized in that, It includes a bracket and a bracket lifting device. The top of the bracket forms a support plane for supporting the electric heating plate. The lifting direction of the bracket lifting device is perpendicular to the support plane. Under the action of the bracket lifting device, the bracket rises or falls, thereby causing the electric heating plate to rise or fall. The bracket lifting device includes a threaded shaft, a rotating shaft, and a meshing steering wheel group. The axis of the threaded shaft is perpendicular to the axis of the rotating shaft. The top of the threaded shaft is threadedly connected to the bracket. The bracket moves linearly along the threaded shaft without rotating. The lower end of the threaded shaft is meshed and drive-connected to the rotating shaft through the meshing steering wheel group to convert the horizontal transmission of the rotating shaft into the vertical transmission of the threaded shaft. The operating end of the rotating shaft is connected to a rotation driving device.

2. The electric heating plate tightening device for a photovoltaic module laminator according to claim 1, characterized in that: A heat preservation layer is provided below the electric heating plate. The heat preservation layer and the electric heating plate are fixedly connected as a whole.

3. The electric heating plate tightening device for a photovoltaic module laminator according to claim 1, characterized in that, The meshing steering wheel group is a bevel gear group or a worm and worm gear transmission pair. An internal nut is provided between the rotating shaft and the bracket. The bracket is sleeved outside the internal nut and is fixedly connected to the internal nut by socket connection. An axial limiting groove is provided at the lower end of the internal nut. A limiting block is provided on the gearbox housing, or an axial limiting groove is provided on the gearbox housing and a limiting block is provided on the rotating shaft. The limiting block is located in the limiting groove to prevent the bracket from rotating along with the rotating shaft. The threaded shaft adopts a T-shaped threaded shaft.

4. A quick-disassembly and assembly heat plate laminator, comprising a lamination workbench for supporting a photovoltaic module and a heating device for heating the photovoltaic module, characterized in that: The heating device is an electric heating plate. The electric heating plate is pressed tightly under the laminating workbench through an electric heating plate pressing device, so that the electric heating plate is fixedly connected in a fitting manner with the laminating workbench. When the pressing device falls back, the electric heating plate also falls back and disengages from the laminating workbench. The electric heating plate pressing device adopts the structure of any one of claims 1-3.

5. The quick-disassembly heat plate laminator according to claim 4, wherein: The laminator is a multi-layer laminator. The laminating workbench of the upper-layer laminating main machine of the multi-layer laminator and the laminating workbench of the lower-layer laminating main machine are arranged oppositely to form a space for accommodating the electric heating plate pressing device. The laminating workbench of the upper-layer laminating main machine, the upper cover of the lower-layer laminating main machine, and the electric heating plate pressing device located therebetween form an intermediate layer. At least two intermediate layers are stacked up and down.

6. The quick-disassembly heat-sheet laminator according to claim 5, characterized in that: It further includes a photovoltaic module conveying device. The photovoltaic module conveying device includes a circulating belt driving device. The circulating belt driving device includes at least two transmission shafts located on the front and rear sides of the laminator. The circulating belt is sleeved on the front and rear transmission shafts and is arranged to surround the laminating workbench and the lower box structure located below it.

7. The quick-disassembly and assembly heat fin type laminator according to claim 6, wherein: The circulating belt driving device further includes a chain conveying device. The chain conveying device includes a shaft group composed of transmission shafts and chain wheels provided on both sides of each shaft. Chains are respectively provided on both sides of the shaft group. The chains are sleeved on the corresponding chain wheels on each side. The circulating belt is connected to the chains, and the chains drive the circulating belt to run. It further includes a chain tensioning device. The chain tensioning device includes a bearing seat fixing frame and a bearing seat sliding driving device. The bearing seat is driven by the bearing seat sliding driving device to move towards or away from another bearing on the bearing seat fixing frame, so as to tension or loosen the chains.

8. The quick-disassembly heat-sheet laminator according to claim 7, characterized in that: The bearing block sliding drive device includes a loose nut sleeve, a tightening nut sleeve and a guiding device. The guiding device includes a guiding rod, and two parallel chutes or slide rails arranged on the bearing block fixing frame and perpendicular to the axis of the transmission shaft. Both ends of the guiding rod are fixedly connected to the bearing block and are slidably connected to the chutes or slide rails. The loose nut sleeve includes a loose nut, a loose screw rod and a loose bearing. The loose nut and the loose screw rod form a linear motion pair. One end of the loose screw rod is hingedly connected to the guiding rod, and the other end is threadedly connected to the loose nut. The loose nut is rotatably connected to the bearing block fixing frame through the loose bearing, and the loose nut is axially limited by an axial limiting member; the tightening nut sleeve includes a tightening bearing, a tightening nut and a tightening screw rod. The tightening nut and the tightening screw rod form a linear motion pair. The tightening nut is axially limited by a limiting member. One end of the tightening screw rod is hingedly connected to the guiding rod, and the other end is threadedly connected to the tightening nut. The tightening screw rod is rotatably connected to the bearing block fixing frame.

9. The quick-disassembly and assembly heat-sheet laminator according to claim 8, wherein: There are two guiding rods, which are arranged in parallel and of equal length. The loose nut and the tightening nut are respectively hingedly connected to the adjacent guiding rods, and the axes of the loose screw rod and the tightening screw rod are collinear.

10. The quick-disassembly and quick-assembly heat fin type laminator according to claim 8 or 9, characterized in that: Both the loose nut and the tightening nut are composed of a nut body and a nut rotating sleeve. The thread is arranged on the nut body. The inner diameter of the nut rotating sleeve is larger than the outer diameter of the tightening screw rod or the loose screw rod, and it is a clearance fit.

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