Grid printing equipment for solar backboard

Abstract

The invention discloses grid printing equipment for a solar back panel, which comprises an unreeling machine, a printing machine, a printing machine and a printing machine, the corona machine is used for carrying out corona treatment on the coiled material passing through the emptying machine; the cloth storage machine is used for storing the discharged coiled materials; the trimming and punching machine is used for trimming and punching the coiled material; the screen printing machine is used for printing the surface of the coiled material; the cutting equipment is used for cutting the coiled material printed by the screen printing machine according to the size; the drying oven is used for carrying out heat treatment on the printed and cut coiled material; the stacking machine is used for stacking and storing the photovoltaic back plates made of the coiled materials; the unreeling machine, the corona machine, the cloth storage machine, the trimming and punching machine, the screen printing machine, the cutting equipment, the drying oven, the corona machine and the stacking machine are connected in sequence; the cutting mechanism is arranged between the printing equipment and the drying oven, compared with a traditional machining mode, the production efficiency is greatly improved, meanwhile, the time for drying the coiled materials through the drying oven is independently controllable, and the drying quality of the coiled materials is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of solar backboard production equipment, and in particular to a grid printing device for solar backboards. Background Art

[0002] There are currently two production methods for solar backsheets. The first involves unwinding the backsheet film roll using an unwinder. The film is then trimmed and punched before being fed to a screen printer via rollers. The screen printer then screen-prints the grid pattern, drying the ink in an oven. After the oven is completed, the printed backsheet is reeled up using a winder. Slitting and cutting machines then trim and cut the printed backsheet, slicing the roll to the desired size. However, this method requires separate printing and cutting steps, requiring multiple positioning operations. Furthermore, the entire roll must be stopped during printing, resulting in a prolonged baking time before the front end enters the oven, potentially causing burnt or darkening of the material, impacting print quality.

[0003] The second method is to first trim and cut the photovoltaic backplane film of the coil through a slitting machine and a cutting machine, and cut out pieces of photovoltaic backplanes according to the required size. Then punch holes in the photovoltaic backplane film of the sheet. Then move the photovoltaic backplane sheet to a screen printing machine, and screen print the photovoltaic backplane grid on the screen printing machine. After printing is completed, the photovoltaic backplane is moved to an oven, and the ink just printed is baked dry in the oven. After the oven is baked, sheets of printed photovoltaic backplanes come out. The above method requires multiple distributed processing. Therefore, repeated positioning is required when performing different steps, which is labor-intensive and prone to large processing errors. Contents of the invention

[0004] In view of the above defects in the prior art, the main purpose of the present invention is to overcome the shortcomings of the prior art and disclose a grid printing device for a solar backsheet, comprising:

[0005] an unwinder, through which the coiled material is unwound;

[0006] A corona machine for performing corona treatment on the coiled material passing through the unwinding machine;

[0007] A cloth accumulator is used to store the coiled material after unwinding, thereby controlling the unwinding speed of the unwinder;

[0008] Trimming and punching machine, which trims the coil and punches holes at designated locations;

[0009] Screen printing machine, which prints on the surface of the roll;

[0010] A cutting device for cutting the coiled material printed by the screen printer into size;

[0011] Oven, heat treatment of printed and cut coils;

[0012] Palletizing machine, which palletizes and stores photovoltaic backsheets made of coils;

[0013] The above devices are connected in the following order:

[0014] The unwinding machine, the corona machine, the cloth accumulating machine, the trimming and punching machine, the screen printing machine, the cutting equipment, the oven, the corona machine and the palletizing machine.

[0015] Furthermore, the cutting equipment includes a cutting bracket, a clamping mechanism, a cutting mechanism and two groups of first drive components, the cutting bracket is provided with a support part and a hollow part, the support part includes arranged rollers and cutting plates, and the hollow part allows the photovoltaic backsheet to pass through the opening; the cutting mechanism and the clamping mechanism are respectively arranged on the cutting bracket through the first drive component, and the first drive component is used to control the cutting mechanism and the clamping mechanism to move along the Y axis respectively; the cutting mechanism includes a second drive component, a height adjustment component and a cutting machine, the cutting machine is arranged on the second drive component through the height adjustment component, the second drive component is used to control the cutting machine to move along the X axis, and the height adjustment component is used to adjust the height position of the cutting machine.

[0016] Furthermore, the first driving assembly includes a first driving wheel, a first driven wheel, a connecting rod, a first guide rail and a first motor, the guide rails are arranged on both sides of the cutting bracket, the first driving wheel and the first driven wheel are respectively arranged on both sides of the cutting bracket, and the first driving wheel and the first driven wheel are linked by the first synchronous belt, the two first driving wheels are connected by the connecting rod, and the first motor is used to drive the first driving wheel to drive the synchronous belt to rotate forward or reverse.

[0017] Furthermore, the clamping mechanism includes a clamping bracket and at least one group of clamping components installed on the clamping bracket, the clamping component includes a clamping claw and a clamping cylinder, and the clamping claw is controlled to open and close by the clamping cylinder; the clamping bracket is connected to the first driving component and moves along the Y-axis by the first driving component.

[0018] Furthermore, a rubber pad is provided at the end of the clamping jaw, and when clamping, the rubber pad contacts the photovoltaic backsheet.

[0019] Furthermore, the clamping mechanism also includes a first adapter plate and a second adapter plate, and a plurality of fixing holes are arranged in an array on the clamping bracket. The clamping assembly is fixedly mounted on the first adapter plate, and a first adjustment waist hole is provided on the first adapter plate, and a second adjustment waist hole and a fixing hole are provided on the second adapter plate. The first adapter plate is connected to the first adjustment waist hole and the fixing hole on the second adapter plate by screws, and the second adapter plate is connected to the second adjustment waist hole and the fixing hole on the clamping bracket by screws. The first adjustment waist hole and the second adjustment waist hole are used to adjust the position of the clamping assembly in the Z-axis and X-axis directions.

[0020] Furthermore, the second drive assembly includes a crossbeam, a second guide rail, a second driving wheel, a second driven wheel, a second synchronous belt and a second motor. The crossbeam is connected to the first drive assembly. At least two second guide rails are arranged parallel to each other above and below. The height adjustment assembly is slidably arranged on the second guide rail. The second driving wheel and the second driven wheel are arranged at both ends of the crossbeam, and the second synchronous belt connects the second driving wheel and the second driven wheel. The second motor is connected to the second driving wheel, and the height adjustment assembly is connected to the second synchronous belt. The second motor is used to drive the second driving wheel to drive the synchronous belt to rotate forward or reverse, thereby driving the height adjustment assembly to move horizontally on the second guide rail.

[0021] Furthermore, the height adjustment assembly includes a fixed plate, an adjustment plate, a third guide rail, an adjustment screw and a first hand wheel, the third guide rail is vertically parallel to the fixed plate, the fixed plate is connected to the second drive assembly, the adjustment screw is arranged on the fixed plate, the first hand wheel is arranged on the adjustment screw, the adjustment plate is arranged on the third guide rail and the adjustment screw, the adjustment plate is threadedly engaged with the adjustment screw, and the first hand wheel is used to drive the adjustment screw to rotate to drive the adjustment plate to move up or down.

[0022] Furthermore, an air avoidance groove is provided on the upper surface of the cutting plate, and the air avoidance groove is parallel to the X-axis.

[0023] Furthermore, the cutting plate is fixedly connected to the cutting mechanism.

[0024] Furthermore, the trimming and punching machine includes a frame and a trimming assembly, a dust removal assembly, a punching assembly and a traction assembly installed sequentially on the frame. The trimming assembly is used to cut the edge of the coil; the dust removal assembly is used to remove dust from the surface of the coil; the punching assembly is used to punch holes at designated positions on the coil; and the traction assembly is used to drive the coil to move.

[0025] Furthermore, the trimming assembly includes a lower knife seat and an upper knife holder, the upper knife seat and the upper knife holder are parallel and rotatably arranged on the frame, the upper knife holder is provided with a blade, and the coil passes between the lower knife seat and the upper knife holder.

[0026] Furthermore, the upper tool holder includes a rotating shaft, a tool holder, a reducer and a second hand wheel, the rotating shaft is rotatably connected to the frame, the tool holder is fixed on the rotating shaft, the second hand wheel is connected to the rotating shaft through the reducer, and the reducer is driven by the second hand wheel to drive the rotating shaft to rotate.

[0027] Furthermore, the traction assembly includes a clamping assembly, a clamping roller, a traction roller and a motor. The traction roller is rotatably arranged on the frame. The clamping roller is installed on the frame through the clamping assembly, and the clamping roller and the traction roller are arranged in parallel. The motor is connected to the traction roller, and the traction roller is driven to rotate by the motor; the coil passes between the clamping roller and the traction roller, and the clamping assembly is used to drive the clamping roller to press the coil onto the traction roller.

[0028] Furthermore, the clamping assembly includes a guide bracket, a slider and a clamping cylinder. The slider is vertically guided in the sliding bracket. The clamping cylinder is installed on the guide bracket and connected to the slider. The clamping cylinder is used to drive the slider to move vertically, and the end of the clamping roller is rotatably connected to the slider.

[0029] Furthermore, synchronous wheels are installed on the traction roller, the trimming assembly and the frame, and the synchronous wheels are connected by a synchronous belt. The synchronous wheels are used to transmit the power of the traction roller to the trimming assembly to provide power for the trimming assembly.

[0030] Furthermore, the dust removal assembly includes a supporting roller, a sticky roller, a cleaning roller and a third drive assembly, the supporting roller and the cleaning roller are mounted on the frame, and both ends of the sticky roller are mounted on the frame through a third drive assembly, and the third drive assembly is used to control the sticky roller to be pressed against the supporting roller or the cleaning roller, and a film is installed on the cleaning roller; when dust is removed from the roll material, the third drive assembly controls the sticky roller to press the roll material against the supporting roller; when cleaning the sticky roller, the third drive assembly controls the sticky roller to be pressed against the film of the cleaning roller, and the film is used to remove dust from the sticky roller.

[0031] Furthermore, the punching assembly includes a fourth drive assembly, a punching bracket, a punch and a punching seat. The punching seat and the punch are correspondingly installed on the punching bracket above and below. The punching bracket is installed on the frame through the fourth drive assembly, and the fourth drive assembly is used to control the punching bracket to move along the Y axis.

[0032] Furthermore, the puncher includes a mounting plate, a punching cylinder and a punch. The punching cylinder is mounted on the punching bracket through the mounting plate. The punch is arranged on the punching cylinder, and the punch is driven up and down by the punching cylinder. A through hole cooperating with the punch is provided on the punching seat.

[0033] Furthermore, a plurality of fixing holes are transversely arranged on the punching bracket, and transverse waist holes are arranged on the mounting plate and the punching seat, and the mounting plate and the punching seat are connected to the fixing holes by screws.

[0034] The beneficial effects achieved by the present invention are:

[0035] 1. A cutting mechanism is set between the printing equipment and the drying oven, which greatly improves production efficiency compared to traditional processing methods. At the same time, the drying time of the coil in the oven is independently controllable, ensuring the drying quality of the coil.

[0036] 2. Set up multiple sets of drive components to realize the control of the cutting mechanism and clamping mechanism, and then quickly adjust according to the actual size requirements of the product; in particular, the drive components use synchronous gears and synchronous belts to accurately control the position of the cutting mechanism and clamping mechanism.

[0037] 3. The trimming, dust removal, and punching components are combined to avoid multiple positioning operations that increase processing errors, improve coil processing accuracy, and enhance processing efficiency. The dust removal component uses a cleaning roller with film attached to it to quickly remove dust from the sticky roller surface. The film is also easy to use, as it only needs to be removed after use to restore the film's stickiness. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic structural diagram of a grid printing device for a solar backsheet according to the present invention;

[0039] Figure 2 Schematic diagram of the three-dimensional structure of the cutting mechanism;

[0040] Figure 3 for Figure 2 A schematic diagram of a three-dimensional structure from another perspective;

[0041] Figure 4 for Figure 2 A is an enlarged schematic diagram;

[0042] Figure 5 for Figure 2 A magnified schematic diagram of middle B;

[0043] Figure 6 for Figure 3 A is an enlarged schematic diagram;

[0044] Figure 7 It is a schematic diagram of the three-dimensional structure of the trimming and punching machine;

[0045] Figure 8 for Figure 7 Hide the structural diagram on one side;

[0046] Figure 9 A schematic diagram of the coordination between the trimming assembly and the traction assembly;

[0047] Figure 10 Schematic diagram of the three-dimensional structure of the dust removal component;

[0048] Figure 11 Schematic diagram of the three-dimensional structure of the punching component;

[0049] The reference numerals are as follows:

[0050] 1. Unwinder, 2. Corona machine, 3. Cloth accumulator, 4. Trimming and punching machine, 5. Screen printer, 6. Cutting equipment, 7. Oven, 8. Palletizer, 61. Cutting bracket, 62. Clamping mechanism, 63. Cutting mechanism, 64. First drive assembly, 611. Support part, 612. Hollow part, 6111. Roller, 6112. Cutting plate, 61121. Avoiding slot, 621. Clamping bracket, 622. Clamping assembly, 623. First adapter plate, 624. Second adapter plate, 6211. Fixed Hole, 6221, clamping claw, 6222, clamping cylinder, 6223, rubber pad, 6231, first adjustment waist hole, 6241, second adjustment waist hole, 631, second drive assembly, 632, height adjustment assembly, 633, cutting machine, 6311, beam, 6312, second guide rail, 6315, second synchronous belt, 6316, second motor, 6321, fixed plate, 6322, adjustment plate, 6323, third guide rail, 6324, adjustment screw, 6325, first hand wheel, 641, first A driving wheel, 643, connecting rod, 644, first guide rail, 645, first motor, 41, frame, 42, trimming assembly, 43, dust removal assembly, 44, punching assembly, 45, traction assembly, 46, synchronous wheel, 47, synchronous belt, 421, lower knife seat, 422, upper knife holder, 423, blade, 424, synchronous gear, 4221, rotating shaft, 4222, knife holder, 4223, reducer, 4224, second hand wheel, 431, support roller, 432, dust-sticking roller, 433, cleaning roller, 43 4. Third drive assembly, 435. Film, 441. Fourth drive assembly, 442. Punching bracket, 443. Puncher, 444. Punching seat, 4411. Adjusting block, 4412. Guide rail, 4413. Connecting rod, 4414. Servo motor, 4421. Fixing hole, 4431. Mounting plate, 4432. Punching cylinder, 451. Clamping assembly, 452. Clamping roller, 453. Pulling roller, 454. Motor, 4511. Guide bracket, 4512. Slider, 4513. Clamping cylinder. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0052] A grid printing device for solar backsheets, such as Figure 1 Shown, including:

[0053] Unwinder 1, unwinding the coiled material through the unwinder;

[0054] Corona machine 2, performs corona treatment on the coil passing through the unwinder;

[0055] The cloth accumulator 3 is used to store the coiled material after unwinding, thereby controlling the unwinding speed of the unwinder;

[0056] Trimming and punching machine 4, trims the coil and punches holes at designated locations;

[0057] Screen printing machine 5, printing on the surface of the coil;

[0058] Cutting equipment 6, cutting the coiled material printed by the screen printer into size;

[0059] Oven 7, heat treatment of the printed and cut coils;

[0060] Palletizer 8, which palletizes and stores photovoltaic backsheets made of coils;

[0061] The above devices are connected in the following order:

[0062] Unwinder 1, corona machine 2, cloth accumulator 3, trimming and punching machine 4, screen printing machine 5, cutting equipment 6, drying oven 7, corona machine 2 and palletizer 8.

[0063] The working principle of the above structure is that the unwinder 1 unwinds the coil, the coil is corona treated by the corona machine 2, and then temporarily stored by the cloth storage machine 3, and then the edge of the coil is cut by the trimming and punching machine 4, and punched at the designated position. After the punching is completed, it enters the screen printing machine 5 to print the surface of the coil. After printing is completed, the cutting device 6 pulls the coil and cuts it at the designated position, thus completing the cutting of the backboard to reach the target size. In this process, the size cutting of the backboard is completed. The cut coil falls into the feeding mechanism of the oven and is sent into the oven for baking. Since the cut coil is an independent individual, it can be baked independently and there will be no over-baking. The coil after passing through the oven 7 is corona treated again, and finally the product is stacked by the palletizer 8.

[0064] In one embodiment, if Figure 2-Figure 6As shown, the cutting equipment 6 includes a cutting bracket 61, a clamping mechanism 62, a cutting mechanism 63 and two groups of first drive components 64. A support part 611 and a hollow part 612 are provided on the cutting bracket 61. The support part includes an arranged roller 6111 and a cutting plate 6112. The hollow part allows an opening for the photovoltaic backsheet to pass through; the cutting mechanism 63 and the clamping mechanism 62 are respectively provided on the cutting bracket 61 through the first drive component 64, and the first drive component 64 is used to control the cutting mechanism 63 and the clamping mechanism 62 to move along the Y axis respectively; the cutting mechanism 63 includes a second drive component 631, a height adjustment component 632 and a cutting machine 633. The cutting machine 633 is provided on the second drive component 631 through the height adjustment component 632, and the second drive component 631 is used to control the cutting machine 633 to move along the X axis, and the height adjustment component 632 is used to adjust the height position of the cutting machine 633. During operation, the first drive assembly 64 controls the clamping mechanism 62 to move along the Y-axis, clamping the end of the coil through the clamping mechanism 62. The first drive assembly 64 then controls the movement of the coil. Once the coil reaches the specified length, the cutting mechanism 63 cuts the coil. The cut coil falls from the opening into the feed mechanism of the oven below. The clamping mechanism 62 opens, allowing the coil to fall completely into the feed mechanism, which then feeds the coil into the oven. Another set of first drive assemblies 64 adjusts the position of the cutting mechanism 63 along the Y-axis.

[0065] In one embodiment, if Figure 2-Figure 6 As shown, the first driving assembly 64 includes a first driving wheel 641, a first driven wheel, a connecting rod 643, a first guide rail 644 and a first motor 645. The first guide rail 644 is arranged on both sides of the cutting bracket 61. The first driving wheel 641 and the first driven wheel are respectively arranged on both sides of the cutting bracket 61, and the first driving wheel 641 and the first driven wheel are linked by a first synchronous belt. The two first driving wheels 641 are connected by a connecting rod 643. The first motor 645 drives the first driving wheel 641 to drive the synchronous belt to rotate forward or reverse.

[0066] The connection structure between the first drive assembly 64 and the clamping mechanism 62 is as follows: both ends of the clamping mechanism 62 are slidably connected to the first guide rail 644, which supports and guides the clamping mechanism 62 to move along the Y-axis. In addition, the clamping mechanism 62 is also connected to the synchronous belt. When the first motor 645 drives the first driving wheel 641 to move the synchronous belt, it provides driving force for the clamping mechanism 62, thereby causing the clamping mechanism 62 to move along the first guide rail 644. The connection structure between the cutting mechanism 63 and the first drive assembly 64 is the same as the above-mentioned connection mechanism. In the above embodiment, the first guide rail 644 of the first drive assembly 64 that controls the clamping mechanism 62 and the cutting mechanism 63 respectively can be shared, which can reduce equipment costs and improve the compactness of the equipment.

[0067] In one embodiment, if Figure 2-Figure 6 As shown, the clamping mechanism 62 includes a clamping bracket 621 and at least one clamping assembly 622 mounted on the clamping bracket 621. The clamping assembly 622 includes a clamping jaw 6221 and a clamping cylinder 6222. The clamping jaw 6221 is mounted on the clamping cylinder 6222. The clamping jaw 6221 is controlled to open and close by the clamping cylinder 6222 to clamp the coil. The clamping bracket 621 is connected to the first drive assembly 64 and is moved along the Y-axis by the first drive assembly 64.

[0068] In the above embodiment, if Figure 2-Figure 6 As shown, the end of the clamping jaw 6221 is provided with a rubber pad 6223. When clamping, the rubber pad 6223 contacts the photovoltaic backsheet to prevent damage to the backsheet during the clamping process. The clamping jaw 6221 clamps the backsheet at a non-printing position.

[0069] In one embodiment, if Figure 2-Figure 6 As shown, the clamping mechanism 62 also includes a first adapter plate 623 and a second adapter plate 624. A plurality of fixing holes 6211 are arranged in an array on the clamping bracket 621. The clamping assembly 622 is fixedly mounted on the first adapter plate 623. A first adjusting waist hole 6231 is provided on the first adapter plate 623. A second adjusting waist hole 6241 and a fixing hole are provided on the second adapter plate 624. The first adapter plate 623 is connected to the first adjusting waist hole 6231 and the fixing hole on the second adapter plate 624 by screws. The second adapter plate 624 is connected to the second adjusting waist hole 6241 and the fixing hole 6211 on the clamping bracket 621 by screws. The first adjusting waist hole 6231 and the second adjusting waist hole 6241 are used to adjust the position of the clamping assembly in the Z-axis and X-axis directions. Preferably, a guide groove is recessed on the second adapter plate 624 to match the first adapter plate 623. During assembly, the first adapter plate 623 is placed in the guide groove, and the guide groove is used to guide the first adapter plate 623 to adjust its height position.

[0070] In one embodiment, if Figure 2-Figure 6 As shown, the second drive assembly 631 includes a crossbeam 6311, a second guide rail 6312, a second driving wheel, a second driven wheel, a second synchronous belt 6315, and a second motor 6316. The crossbeam 6311 is connected to the first drive assembly 64. At least two second guide rails 6312 are provided in parallel vertically. The height adjustment assembly 632 is slidably disposed on the second guide rail 6312. The second driving wheel and the second driven wheel 31 are disposed at both ends of the crossbeam 6311. A second synchronous belt 6315 connects the second driving wheel and the second driven wheel. A second motor 6316 is connected to the second driving wheel. The height adjustment assembly 632 is connected to the second synchronous belt 6315. The second motor 6316 drives the second driving wheel to drive the synchronous belt to rotate forward or reverse, thereby driving the height adjustment assembly 632 to move horizontally on the second guide rail 6312. The two sets of second guide rails 6312 support and guide the height adjustment assembly 632 and the cutting machine 633.

[0071] In one embodiment, if Figure 2-Figure 6 As shown, the height adjustment assembly 632 includes a fixed plate 6321, an adjustment plate 6322, a third guide rail 6323, an adjustment screw 6324, and a first hand wheel 6325. The third guide rail 6323 is vertically and parallelly arranged on the fixed plate 6321, which is connected to the second drive assembly 31. The adjustment screw 6324 is arranged on the fixed plate 6321. The first hand wheel 6325 is arranged on the adjustment screw 6324. The adjustment plate 6322 is arranged on the third guide rail 6323 and the adjustment screw 6324. The adjustment plate 6322 and the adjustment screw 6324 are threadedly engaged. The first hand wheel 6325 drives the adjustment screw 6324 to rotate, thereby driving the adjustment plate 6322 to move upward or downward. The height position of the cutting machine 633 can be adjusted by the height adjustment assembly 632.

[0072] In one embodiment, if Figure 2-Figure 6 As shown, the upper surface of the cutting plate 6112 is provided with a clearance groove 61121, which is parallel to the X axis. The clearance groove 61121 is used to accommodate the blade of the cutter 633 to ensure that the cutter 633 can completely cut the coil.

[0073] In one embodiment, if Figure 2-Figure 6 As shown, the cutting plate 6112 is fixedly connected to the cutting mechanism 63. Specifically, the cutting plate 6112 is fixed to the crossbeam 6311, thereby ensuring the relative position of the cutting plate 6112 and the cutting machine 633.

[0074] In the above embodiment, if Figure 2-Figure 6 As shown, the first motor 645 and the second motor 6316 are servo motors.

[0075] In one embodiment, if Figure 7-11 As shown, the trimming and punching machine 4 includes a frame 41 and a trimming assembly 42, a dust removal assembly 43, a punching assembly 44 and a traction assembly 45 installed in sequence on the frame 41. The trimming assembly 42 is used to cut the edge of the coil; the dust removal assembly 43 is used to remove dust from the surface of the coil; the punching assembly 44 is used to punch holes at designated positions on the coil; and the traction assembly 45 is used to drive the coil to move.

[0076] In one embodiment, if Figure 7-11 As shown, the trimming assembly 42 includes a lower blade holder 421 and an upper blade holder 422. The upper blade holder 421 and the upper blade holder 422 are parallel and rotatably mounted on the frame 41. The upper blade holder 422 is provided with a blade 423. The web passes between the lower blade holder 421 and the upper blade holder 422. The spacing between the blades 423 on the left and right sides of the upper blade holder 422 is the width of the backing plate. The web passes through the lower blade holder 421 and the upper blade holder 422 to complete the trimming of the web edge.

[0077] In the above embodiment, if Figure 7-11 As shown, the upper blade holder 422 includes a rotating shaft 4221, a blade holder 4222, a reducer 4223, and a second hand wheel 4224. The rotating shaft 4221 is rotatably connected to the frame 41, and the blade holder 4222 is fixed to the rotating shaft 4221. The second hand wheel 4224 is connected to the rotating shaft 4221 through the reducer 4223. The second hand wheel 4224 drives the reducer 4223 to drive the rotating shaft 4221. The reducer 4223 is a worm gear reducer. The hand wheel drives the reducer 4223 to control the rotating shaft 4221 to drive the blade holder 4222 to swing and adjust. The blade 423 is mounted on the blade holder 4222. The above structure allows the blade 423 to be engaged and disengaged. When the blade 423 is away from the lower blade holder 421, it facilitates the passage of the coil between the lower blade holder 421 and the upper blade holder 422, thus achieving the loading of the coil. When the control blade 423 moves toward the lower knife seat 421, the blade 423 presses into the coil and intervenes in cutting the edge of the coil. Preferably, an air avoidance groove is provided on the lower knife seat 421 to ensure that the blade 423 cuts the coil in place while avoiding damage to the lower knife seat 421.

[0078] In the above embodiment, if Figure 7-11 As shown, the lower knife seat 421 and the upper knife seat 422 are provided with synchronous gears 424 and mesh with each other, thereby making the lower knife seat 421 and the upper knife seat 22 rotate synchronously.

[0079] In one embodiment, if Figure 7-11 As shown, the traction assembly 45 includes a clamping assembly 451, a clamping roller 452, a traction roller 453 and a motor 454. The traction roller 453 is rotatably arranged on the frame 41. The clamping roller 452 is installed on the frame 41 through the clamping assembly 451, and the clamping roller 452 and the traction roller 453 are arranged in parallel. The motor 454 is connected to the traction roller 453, and the traction roller 453 is driven to rotate by the motor 4544; the coil passes between the clamping roller 452 and the traction roller 453, and the clamping assembly 451 is used to drive the clamping roller 452 to press the coil onto the traction roller 453.

[0080] In the above embodiment, if Figure 7-11 As shown, the pressing assembly 451 includes a guide bracket 4511, a slider 4512, and a pressing cylinder 4513. The slider 4512 is vertically guided within the sliding bracket 4511. The pressing cylinder 4513 is mounted on the guide bracket 4511 and connected to the slider 4512. The pressing cylinder 4513 drives the slider 4512 to move vertically, and the end of the pressing roller 452 is rotatably connected to the slider 4512. The pressing cylinder 4513 provides downward pressure to the slider 4512, thereby pressing the pressing roller 452 against the traction roller 453, thereby pressing the web against the traction roller 453.

[0081] In the above embodiment, if Figure 7-11 As shown, synchronous wheels 46 are installed on the traction roller 453, the trimming assembly 42, and the frame 41. The synchronous wheels 46 are connected by a synchronous belt 47. The synchronous wheels 46 transmit the power of the traction roller 453 to the trimming assembly 42, providing power for the trimming assembly 42. The cooperation between the synchronous wheels 46 and the synchronous belt 47 enables the traction assembly 45 and the trimming assembly 42 to move synchronously.

[0082] In one embodiment, if Figure 7-11 As shown, the dust removal assembly 43 includes a support roller 431, a sticky roller 432, a cleaning roller 433, and a third drive assembly 434. Since the solar backsheet is printed on the top surface of the web, the dust removal assembly 43 only removes dust from the top surface. The cleaning roller 433, sticky roller 432, and support roller 431 are arranged parallel to each other at the top, middle, and bottom. The support roller 431 and cleaning roller 433 are mounted on the frame 41. The sticky roller 432 is mounted on the frame 41 at both ends via the third drive assembly 434. The third drive assembly 434 controls the sticky roller 432 to press against the support roller 431 or cleaning roller 433. A film 435 is mounted on the cleaning roller 433; this film 435 cleans the surface of the sticky roller 432. When removing dust from a web, the third drive assembly 434 controls the sticky roller 432 to press the web against the support roller 431. When cleaning the sticky roller 432, the third drive assembly 434 controls the sticky roller 432 to press against the film 435 of the cleaning roller 433, removing dust from the sticky roller 432 using the film 435. The third drive assembly 434 is a pneumatic cylinder.

[0083] In one embodiment, if Figure 7-11 As shown, the punching assembly 44 includes a fourth driving assembly 441, a punching bracket 442, a puncher 443 and a punching seat 444. The punching seat 444 and the puncher 443 are correspondingly installed on the punching bracket 442 in the upper and lower parts. The punching bracket 442 is installed on the frame 41 through the fourth driving assembly 441, and the fourth driving assembly 441 is used to control the horizontal movement of the punching bracket 442. Among them, the fourth drive assembly 441 includes an adjustment block 4411, a guide rail 4412, a synchronous wheel, a synchronous belt, a connecting rod 4413 and a servo motor 4414. Synchronous wheels are respectively arranged on both sides of the frame 41, and the two synchronous wheels on each side are connected by a synchronous belt. The connecting rod 4413 connects the synchronous wheels on both sides, and the servo motor 4414 is connected to one of the synchronous wheels. Guide rails 4412 are also respectively arranged on both sides of the frame 41. The adjustment block 412 is slidably set on the guide rail 4412, and the punching bracket 442 is set on the adjustment block 4411. The adjustment block 4411 is connected to the synchronous belt. The synchronous wheel is driven by the servo motor 4414 to make the synchronous belt move, thereby driving the punching bracket 442 to move along the guide rail 4412.

[0084] In the above embodiment, if Figure 7-11As shown, the puncher 443 includes a mounting plate 4431, a punching cylinder 4432, and a punch (not shown). The punching cylinder 4432 is mounted on the punching bracket 442 via the mounting plate 4431. The punch is mounted on the punching cylinder 4432 and is driven up and down by the punching cylinder 4432. The punching base 444 is provided with a through hole that cooperates with the punch. Waste material from punching the coil can fall through the through hole without causing accumulation.

[0085] In one embodiment, if Figure 7-11 As shown, a plurality of fixing holes 4421 are horizontally provided on the punching bracket 442, and a horizontal waist hole is provided on the mounting plate 4431 and the punching seat 444. The mounting plate 4431 and the punching seat 444 are connected to the fixing holes 4421 by screws. Then, the horizontal pin adjusts the punching position to meet the needs of different products.

[0086] When the present invention is used, Figures 1-11 As shown, the coil is placed on the unwinder, unloaded, and subjected to corona treatment by a corona machine. The coil enters the cloth storage machine for temporary storage, thereby controlling the unwinding speed of the unwinder. The coil then passes through the trimming and punching machine, sequentially passing through the trimming assembly 42, the dust removal assembly 43, the punching assembly 44, and the traction assembly 45. The traction assembly 45 pulls the coil, and during the movement, the trimming assembly 42 trims the edges and removes dust from the surface. When the coil moves to the designated position, the punching assembly 44 punches the coil. After punching, the coil enters the screen printing machine, where the surface of the coil is printed. After printing is complete, the coil is pulled and cut by the cutting device. The position of the cutting mechanism 63 is adjusted by the first drive assembly 64. The clamping mechanism 62 clamps and pulls the printed coil to the designated position. The cutting mechanism 63 then cuts the coil, which then falls through an opening into the feed mechanism of the drying oven. The clamping mechanism 62 is opened, and the feed mechanism feeds the coil into the drying oven for ink drying. Finally, the coil is fed into the corona machine for electro-fishing energy treatment, and then into the drying oven for heat treatment. Finally, the stacking machine stacks the coil.

[0087] The above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. If the present invention is modified or replaced with equivalents without departing from the spirit and scope of the present invention, they should be included in the scope of protection of the claims of the present invention.

Claims

1. A grid printing device for solar backsheet, characterized in that: include: an unwinder, through which the coiled material is unwound; A corona machine for performing corona treatment on the coiled material passing through the unwinding machine; A cloth accumulator is used to store the coiled material after unwinding, thereby controlling the unwinding speed of the unwinder; Trimming and punching machine, which trims the coil and punches holes at designated locations; Screen printing machine, which prints on the surface of the roll; A cutting device for cutting the coiled material printed by the screen printer into size; Oven, heat treatment of printed and cut coils; Palletizing machine, which palletizes and stores photovoltaic backsheets made of coils; The above devices are connected in the following order: The unwinding machine, the corona machine, the cloth accumulating machine, the trimming and punching machine, the screen printing machine, the cutting equipment, the drying oven, the corona machine and the palletizing machine; The cutting equipment includes a cutting bracket, a clamping mechanism, a cutting mechanism and two groups of first drive components, the cutting bracket is provided with a support portion and a hollow portion, the support portion includes an arranged roller and a cutting plate, and the hollow portion has an opening allowing the photovoltaic backsheet to pass through; the cutting mechanism and the clamping mechanism are respectively provided on the cutting bracket via the first drive component, and the first drive component is used to control the cutting mechanism and the clamping mechanism to move along the Y axis respectively; the cutting mechanism includes a second drive component, a height adjustment component and a cutting machine, the cutting machine is provided on the second drive component via the height adjustment component, the second drive component is used to control the cutting machine to move along the X axis, and the height adjustment component is used to adjust the height position of the cutting machine; The trimming and punching machine includes a frame and a trimming assembly, a dust removal assembly, a punching assembly and a traction assembly sequentially installed on the frame. The trimming assembly is used to cut the edge of the coil; the dust removal assembly is used to remove dust from the surface of the coil; the punching assembly is used to punch holes at designated positions on the coil; and the traction assembly is used to drive the coil to move.

2. The grid printing device for solar backsheet according to claim 1, characterized in that: The first driving assembly includes a first driving wheel, a first driven wheel, a connecting rod, a first guide rail and a first motor. The guide rails are arranged on both sides of the cutting bracket. The first driving wheel and the first driven wheel are respectively arranged on both sides of the cutting bracket, and the first driving wheel and the first driven wheel are linked by the first synchronous belt. The two first driving wheels are connected by the connecting rod. The first motor drives the first driving wheel to drive the synchronous belt to rotate forward or reverse.

3. The grid printing device for solar backsheet according to claim 1, characterized in that: The clamping mechanism includes a clamping bracket and at least one group of clamping components installed on the clamping bracket, the clamping component includes a clamping claw and a clamping cylinder, and the clamping claw is controlled to open and close by the clamping cylinder; the clamping bracket is connected to the first driving component and is moved along the Y-axis by the first driving component; the clamping mechanism also includes a first adapter plate and a second adapter plate, and a plurality of fixing holes are arranged in an array on the clamping bracket, and the clamping component is fixedly mounted on the first adapter plate, and a first adjustment waist hole is provided on the first adapter plate, and a second adjustment waist hole and a fixing hole are provided on the second adapter plate. The first adapter plate is connected to the first adjustment waist hole and the fixing hole on the second adapter plate by screws, and the second adapter plate is connected to the second adjustment waist hole and the fixing hole on the clamping bracket by screws, and the first adjustment waist hole and the second adjustment waist hole are used to adjust the position of the clamping component in the Z-axis and X-axis directions.

4. The grid printing device for solar backsheet according to claim 1, characterized in that: The second driving assembly includes a crossbeam, a second guide rail, a second driving wheel, a second driven wheel, a second synchronous belt and a second motor. The crossbeam is connected to the first driving assembly. At least two second guide rails are arranged in parallel up and down. The height adjustment assembly is slidably arranged on the second guide rail. The second driving wheel and the second driven wheel are arranged at both ends of the crossbeam, and the second synchronous belt connects the second driving wheel and the second driven wheel. The second motor is connected to the second driving wheel, and the height adjustment assembly is connected to the second synchronous belt. The second motor is used to drive the second driving wheel to drive the synchronous belt to rotate forward or reverse, thereby driving the height adjustment assembly to move horizontally on the second guide rail.

5. The grid printing device for solar backsheet according to claim 1, characterized in that: The height adjustment assembly includes a fixed plate, an adjustment plate, a third guide rail, an adjustment screw and a first hand wheel. The third guide rail is vertically parallel to the fixed plate. The fixed plate is connected to the second drive assembly. The adjustment screw is arranged on the fixed plate. The first hand wheel is arranged on the adjustment screw. The adjustment plate is arranged on the third guide rail and the adjustment screw. The adjustment plate is threadedly engaged with the adjustment screw. The first hand wheel is used to drive the adjustment screw to rotate to drive the adjustment plate to move upward or downward.

6. The grid printing device for solar backsheet according to claim 1, characterized in that: The trimming assembly includes a lower knife seat and an upper knife holder, the upper knife seat and the upper knife holder are parallel and rotatably arranged on the frame, the upper knife holder is provided with a blade, and the coil passes between the lower knife seat and the upper knife holder; the upper knife holder includes a rotating shaft, a knife holder, a reducer and a second hand wheel, the rotating shaft is rotatably connected to the frame, the knife holder is fixed on the rotating shaft, the second hand wheel is connected to the rotating shaft through the reducer, and the reducer is driven by the second hand wheel to drive the rotating shaft to rotate.

7. The grid printing device for solar backsheet according to claim 1, characterized in that: The traction assembly includes a pressing assembly, a pressing roller, a traction roller and a motor. The traction roller is rotatably arranged on the frame. The pressing roller is installed on the frame through the pressing assembly. The pressing roller and the traction roller are arranged in parallel. The motor is connected to the traction roller and is driven by the motor to rotate the traction roller. The coil passes between the pressing roller and the traction roller, and the pressing assembly drives the pressing roller to press the coil onto the traction roller. The clamping assembly includes a guide bracket, a slider and a clamping cylinder. The slider is vertically guided in the sliding bracket. The clamping cylinder is installed on the guide bracket and connected to the slider. The clamping cylinder is used to drive the slider to move vertically, and the end of the clamping roller is rotatably connected to the slider.

8. The grid printing device for solar backsheet according to claim 1, characterized in that: The dust removal assembly includes a supporting roller, a sticky roller, a cleaning roller and a third driving assembly. The supporting roller and the cleaning roller are mounted on the frame. Both ends of the sticky roller are mounted on the frame via a third driving assembly. The third driving assembly is used to control the sticky roller to press against the supporting roller or the cleaning roller. A film is mounted on the cleaning roller. When dust is removed from the web, the third driving assembly controls the sticky roller to press the web against the supporting roller. When cleaning the sticky roller, the third driving assembly controls the sticky roller to press against the film of the cleaning roller, and the film is used to remove dust from the sticky roller.

9. The grid printing device for solar backsheet according to claim 1, characterized in that: The punching assembly includes a fourth drive assembly, a punching bracket, a punch and a punching seat. The punching seat and the punch are correspondingly installed on the punching bracket up and down. The punching bracket is installed on the frame through the fourth drive assembly, and the fourth drive assembly is used to control the punching bracket to move along the Y axis.

10. The grid printing device for solar backsheet according to claim 9, characterized in that: The punching device includes a mounting plate, a punching cylinder and a punch. The punching cylinder is mounted on the punching bracket via the mounting plate. The punch is mounted on the punching cylinder and is driven up and down by the punching cylinder. A through hole is provided on the punching seat to cooperate with the punch. A plurality of fixing holes are transversely arranged on the punching bracket, and transverse waist holes are arranged on the mounting plate and the punching seat. The mounting plate and the punching seat are connected to the fixing holes through screws.

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