A kind of deviation rectifying device for EVA cutting and laying machine

Abstract

The application relates to a deviation rectifying device for an EVA cutting and laying machine, and relates to the technical field of photovoltaic panel production. The device comprises a base for supporting an EVA adhesive film, a supporting frame arranged above the base, a suction positioning mechanism arranged on the supporting frame, the suction positioning mechanism comprising a wind box, suction cups arranged at the four corners of the lower side of the wind box and connected with the inside of the wind box, a fan arranged above the wind box and connected with the inside of the wind box, a deviation rectifying and adjusting mechanism arranged between the wind box and the supporting frame and used for adjusting the position of the wind box, an electronic camera arranged below the wind box, and a controller electrically connected with the electronic camera. The application has the effects of quickly rectifying the EVA, reducing the labor intensity and improving the production efficiency.

Description

TECHNICAL FIELD

[0001] The application relates to the field of photovoltaic panel production, in particular to a deviation rectifying device for an EVA cutting and laying machine. BACKGROUND

[0002] The automatic cutting machine is used for the segmentation and cutting of sheet materials in various industries, is controlled through system software, and then directly cuts the products. As long as the corresponding parameters are set on the operation platform, the computer transmits corresponding instructions to the cutting machine. The cutting machine quickly cuts according to the operation parameters, has high automation program and simple operation.

[0003] In the production of photovoltaic panels, the EVA automatic cutting machine completes cutting and then lays the EVA on the glass plate, thereby facilitating the subsequent production work of the photovoltaic panel.

[0004] According to the related technology in the above, in the cutting and laying process of EVA, the EVA is prone to deviate from the glass plate, and therefore manual intervention is often required to rectify and correct the position of the EVA, which consumes a large amount of manpower and reduces the production efficiency. SUMMARY

[0005] The purpose of the application is to provide a deviation rectifying device for an EVA cutting and laying machine, which is used for quickly rectifying the EVA, reducing the labor intensity and improving the production efficiency.

[0006] The deviation rectifying device for the EVA cutting and laying machine provided by the application adopts the following technical scheme:

[0007] The deviation rectifying device for the EVA cutting and laying machine comprises a base table for supporting the EVA adhesive film, a supporting frame is arranged above the base table, a suction positioning mechanism is arranged on the supporting frame, the suction positioning mechanism comprises a wind box, suction cups are arranged at the four corners of the lower side of the wind box and are communicated with the inside of the wind box, a fan is arranged above the wind box and is communicated with the inside of the wind box, a deviation adjusting mechanism for adjusting the position of the wind box is further arranged between the wind box and the supporting frame, an electronic camera is arranged below the wind box, and the electronic camera is electrically connected with a controller.

[0008] When the EVA adhesive film reaches the lower side of the electronic camera, the electronic camera detects the alignment of the EVA adhesive film and the glass plate. When the EVA adhesive film deviates from the glass plate, the deviation adjusting mechanism controls the wind box to descend, so that the suction cups abut against the EVA adhesive film, the fan sucks air, the suction cups adsorb the adhesive film, the deviation adjusting mechanism adjusts the position of the EVA adhesive film, then the fan stops sucking air, the suction cups are separated from the EVA adhesive film, and the deviation adjusting mechanism drives the suction cups to move away from the EVA adhesive film, so that the deviation rectifying work of the EVA adhesive film is quickly completed, and the production efficiency is improved.

[0009] Optionally, the deviation rectifying adjusting mechanism comprises a rotating assembly and a translating assembly, the rotating assembly comprises a connecting block rotatably connected above the air box, a driven gear is arranged at the center of the air box, the driven gear is engaged with a driving gear, the connecting block is provided with a driving motor, an output shaft of the driving motor is mounted at the center of the driving gear, and the translating assembly is connected to the connecting block.

[0010] By using the above technical scheme, the driving motor drives the air box to rotate through the driving gear and the driven gear, so that the angle of the EVA adhesive film is adjusted by rotating the air box after the suction cup adsorbs the EVA adhesive film, and the orientation of the EVA adhesive film is quickly adjusted, thereby improving the deviation rectifying efficiency.

[0011] Optionally, the translating assembly comprises a vertically arranged hydraulic cylinder, a piston rod of the hydraulic cylinder is arranged on the connecting block, a first moving block and a second moving block are arranged above the hydraulic cylinder, the first moving block is slidably connected to the support frame, the second moving block is slidably connected to the first moving block, a moving direction of the first moving block is horizontally perpendicular to a moving direction of the second moving block, the hydraulic cylinder is arranged on the second moving block, the support frame is provided with a first driving member for driving the first moving block to move, and the first moving block is provided with a second driving member for driving the second moving block to move.

[0012] By using the above technical scheme, the first driving member and the second driving member respectively drive the first moving block and the second moving block to translate, so that the suction cup is freely moved in the horizontal plane, and the hydraulic cylinder enables the suction cup to be moved in the vertical direction, so that the EVA adhesive film can be adjusted in space, and the position adjustment is more accurate.

[0013] Optionally, an air passage is arranged above the air box, the fan is connected to the inside of the air box through the air passage, an opening of the air passage close to the fan is larger than an opening in the air passage away from the fan, a blocking ball for blocking the air passage is arranged in the air passage, an air hole is arranged below the air box, the air hole is arranged opposite to the air passage, a connecting rod which is only moved in the vertical direction is slidably connected in the air box, one end of the connecting rod is fixed on the blocking ball, the other end of the connecting rod passes through the air hole and is connected with a blocking block for blocking the air hole.

[0014] By using the above technical scheme, when the fan sucks air, the blocking ball rises, so that the air passage is opened, at this time, the blocking block blocks the air hole, the suction cup adsorbs the EVA adhesive film, after the position of the EVA adhesive film is corrected, the fan stops sucking air, the blocking ball descends under the action of gravity, thereby blocking the air passage, at this time, the blocking block is separated from the air hole, the air pressure in the air box is the same as the air pressure outside, and the suction cup can be separated from the EVA adhesive film, thereby reducing the possibility that the position of the EVA adhesive film deviates again due to the movement of the suction cup.

[0015] Optionally, a limiting groove is formed in the lower side of the air box and communicates with the air hole, the blocking block is inserted into the limiting groove, a sleeve is arranged outside the connecting pipe in the air hole, the sleeve wall abuts on the hole wall of the air hole, and the sleeve is fixed on the blocking block, and a plurality of evenly distributed pressure relief holes are formed in the sleeve.

[0016] By adopting the above technical scheme, the sleeve abuts on the hole wall of the air hole, so that the blocking block is more stable during movement, and the pressure relief holes enable the inside of the sleeve to communicate with the outside, without affecting the flow of air and the adjustment of air pressure, thereby improving the stability of equipment operation.

[0017] Optionally, the suction disc is in sliding connection with the air box, and the air box is provided with a driving assembly for driving the suction disc to move close to or away from the air hole.

[0018] By adopting the above technical scheme, when the four suction discs are respectively adsorbed on the four corners of the EVA film, the driving assembly drives the suction discs to move away from the air hole, so that the four suction discs pull at the four corner positions of the EVA film, so that the EVA film can be pulled flat, the possibility of EVA film wrinkles is reduced, and the possibility of subsequent problems such as bubbles in the photovoltaic panel is reduced.

[0019] Optionally, a waist-shaped hole is formed in the air box and faces the suction disc, one end of the suction disc penetrates through the waist-shaped hole and is fixed with a sliding block, the sliding block is in sliding connection inside the air box and blocks the waist-shaped hole, the driving assembly includes a return spring, one end of the return spring is fixed to one end of the sliding block close to the air hole, the other end is fixed to the inside of the air box, one end of the sliding block away from the return spring is abutted with a driving block, and the inside of the air box is provided with a third driving member for driving the driving block to move towards the air hole.

[0020] By adopting the above technical scheme, when the blocking block blocks the air hole, the suction disc is adsorbed on the EVA film, the third driving member drives the driving block to move away from the air hole, and the sliding block simultaneously moves away from the air hole under the pushing of the return spring, so that the four suction discs are away from the air hole, thereby completing the flattening of the EVA film, when the blocking block moves away from the air hole, the suction disc no longer adsorbs the EVA film, the third driving member drives the sliding block to move close to the air hole, so that the suction disc returns to the original position, and waits for the next adsorption and flattening of the EVA film.

[0021] Optionally, the third driving member comprises a rotating ring coaxial with the sleeve, the rotating ring is rotationally connected with the wind box, and the sleeve is connected with the rotating ring through a ball screw, the rotating ring is provided with a protrusion corresponding to the driving block at the edge, a connecting groove is formed in the protrusion, a driving rod is arranged between the protrusion and the driving block, one end of the driving rod is fixed on the driving block, the other end of the driving rod is rotationally and slidably arranged in the connecting groove, the driving rod is slidably connected with the wind box, and the sliding direction of the driving rod is the same as the moving direction of the sliding block.

[0022] By adopting the above technical scheme, in the process that the blocking block blocks the air hole, the sleeve drives the rotating ring to rotate, the rotating ring drives the driving rod to move away from the air hole, so that the driving block moves away from the air hole, the tensioning work of the EVA adhesive film is completed, in the process that the blocking block moves away from the air hole, the sleeve drives the rotating ring to rotate reversely, so that the rotating ring drives the driving rod to move close to the air hole, and the reciprocating movement of the suction cup is completed.

[0023] Optionally, the end of the suction cup close to the EVA adhesive film is provided with a supporting net.

[0024] By adopting the above technical scheme, when the suction cup adsorbs the EVA adhesive film, the supporting net abuts against the side wall of the EVA adhesive film, the possibility that the EVA adhesive film is deformed at some positions due to wind force is reduced, and the flatness of the EVA adhesive film is improved.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The air suction positioning mechanism can quickly adsorb the EVA adhesive film, so that the deviation correction work of the EVA adhesive film is facilitated, and the possibility that the EVA adhesive film deviates again due to vibration or shaking is reduced.

[0027] 2. The deviation correction adjusting mechanism can adjust the orientation in space, and the accuracy of EVA adhesive film adjustment is improved.

[0028] 3. The EVA adhesive film can be automatically tensioned during the deviation correction process, wrinkles are reduced, and the product quality in the subsequent process is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a schematic view of the overall structure of the embodiment of the present application;

[0030] Figure 2 is a schematic view of the deviation correction adjusting mechanism in the embodiment of the present application;

[0031] Figure 3 is a schematic view of the air suction positioning mechanism in the embodiment of the present application;

[0032] Figure 4 is a schematic view of the suction cup in the embodiment of the present application;

[0033] Figure 5 is a structural schematic diagram of a driving assembly in the embodiment of the application;

[0034] In the figure, 1, base; 2, support frame; 3, air suction positioning mechanism; 31, air box; 311, air hole; 312, limiting groove; 313, waist-shaped hole; 32, suction cup; 321, support net; 33, ventilation channel; 34, fan; 35, plugging ball; 36, plugging block; 37, connecting rod; 38, sliding block; 39, tension spring; 4, deviation rectifying adjustment mechanism; 41, translation assembly; 411, first moving block; 412, first driving lead screw; 413, second moving block; 414, second driving lead screw; 415, hydraulic cylinder; 42, rotation assembly; 421, connecting block; 422, driving motor; 423, driving gear; 424, driven gear; 5, driving assembly; 51, return spring; 52, driving block; 53, driving rod; 54, rotating ring; 55, sleeve; 56, protruding block; 561, connecting groove; 6, electronic camera. DETAILED DESCRIPTION

[0035] The application will be further described in detail below with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 5 The application will be further described in detail below with reference to the accompanying drawings.

[0036] Embodiment 1: A deviation rectifying device for an EVA cutting and laying machine, referring to Figure 1 , comprising a base 1, a support frame 2 is fixedly connected above the base 1, an air suction positioning mechanism 3 and a deviation rectifying adjustment mechanism 4 are arranged between the support frame 2 and the base 1, the air suction positioning mechanism 3 is connected to the support frame 2 through the deviation rectifying adjustment mechanism 4 and located above the base 1.

[0037] Referring to Figure 1 and Figure 2 , the deviation rectifying adjustment mechanism 4 comprises a translation assembly 41 and a rotation assembly 42, the translation assembly 41 comprises a first moving block 411 horizontally slidingly connected to the upper end of the support frame 2, a first driving member is arranged on the support frame 2 for driving the first moving block 411 to move. The first driving member comprises a first driving lead screw 412 horizontally penetrating through the first moving block 411, the first driving lead screw 412 is threadedly connected with the first moving block 411, both ends of the first driving lead screw 412 are rotationally connected with the support frame 2, and a first moving motor is installed on the support frame 2 for driving the first driving lead screw 412 to rotate.

[0038] The first moving block 411 is provided below with a second moving block 413, which is in sliding connection with the first moving block 411, and the moving direction of the second moving block 413 is horizontally perpendicular to the moving direction of the first moving block 411. The first moving block 411 is provided with a second driving member for driving the second moving block 413 to move, and the second driving member comprises a second driving screw rod 414 horizontally penetrating through the second moving block 413 and in threaded connection with the second moving block 413, both ends of the second driving screw rod 414 are in rotary connection with the first moving block 411, and the first moving block 411 is further provided with a second moving motor, which is used for driving the second driving screw rod 414 to rotate.

[0039] The second moving block 413 is fixedly connected below with a vertically arranged hydraulic cylinder 415, and the piston rod of the hydraulic cylinder 415 is connected with a rotating assembly 42. Through the driving of the first moving motor and the second moving motor, the hydraulic cylinder 415 can freely move in the horizontal plane, and at the same time, the hydraulic cylinder 415 can adjust the position in the vertical direction through the telescopic piston rod.

[0040] With reference to Figure 1 and Figure 3 , the rotating assembly 42 comprises a connecting block 421 fixedly connected with the piston rod, and an air suction positioning mechanism 3 is arranged on the connecting block 421. The air suction positioning mechanism 3 comprises an air box 31 rotatably connected below the connecting block 421, a ventilation channel 33 is arranged above the center of the air box 31, a fan 34 capable of communicating with the outside is arranged above the ventilation channel 33, and the fan 34 is connected to the inside of the air box 31 through the ventilation channel 33.

[0041] The rotating assembly 42 further comprises a driving motor 422 arranged on the connecting block 421, a driven gear 424 is fixedly connected outside the fan 34, and a driving gear 423 is fixedly connected to the output shaft of the driving motor 422, and the driving gear 423 and the driven gear 424 are in meshing engagement.

[0042] Therefore, through the translational assembly 41 and the rotating assembly 42, the air suction positioning mechanism 3 can adjust the orientation in space, and then perform the deviation correction work.

[0043] With reference to Figure 3 and Figure 4 , the air suction positioning mechanism 3 further comprises four suction cups 32, which are uniformly distributed at the four corner positions of the lower side of the air box 31, one end of the suction cup 32 is opposite to the upper side of the base 1, and a supporting net 321 is arranged inside, and the other end penetrates through the inside of the air box 31, so that the inside of the air box 31 can be communicated with the outside through the suction cup 32.

[0044] The deviation correction mechanism 4 drives the suction cup 32 to abut on the EVA film on the base 1, the fan 34 sucks air, so that the suction cup 32 can be adsorbed on the EVA film, the deviation correction mechanism 4 adjusts the position of the suction cup 32 again, so as to complete the position of the EVA film, and stop the air suction to lower the EVA film.

[0045] In order to facilitate the EVA film to be placed down without being shaken due to wind pressure, the air hole 311 opposite to the ventilation channel 33 is arranged on the lower side of the air box 31. The diameter of the ventilation channel 33 close to the air box 31 is smaller than the diameter of the ventilation channel 33 far from the air box 31, the ventilation channel 33 is provided with a blocking ball 35 capable of blocking the ventilation channel 33 under the action of gravity, a blocking block 36 is arranged below the air hole 311, and a connecting rod 37 fixedly connecting the blocking ball 35 and the blocking block 36 is arranged between the blocking ball 35 and the blocking block 36. The limiting groove 312 corresponding to the blocking block 36 is arranged on the lower side of the air box 31.

[0046] Referring to Figure 3 and Figure 5 , the connecting rod 37 is a square rod, a sleeve ring is slidably connected to the outer side of the connecting rod 37, and a fixing rod fixedly connecting the sleeve ring and the air box 31 is arranged between the sleeve ring and the air box 31. The square rod is sleeved with a tension spring 39, one end of the tension spring 39 is fixed on the blocking ball 35, and the other end of the tension spring 39 is fixed on the sleeve ring. The tension spring 39 cooperates with the gravity to make the blocking ball 35 block the ventilation channel 33.

[0047] When the blocking ball 35 blocks the ventilation channel 33, the blocking block 36 is separated from the limiting groove 312, the air hole 311 is connected between the inside of the air box 31 and the outside, so that the suction cup 32 can be smoothly separated from the EVA film. When the blocking ball 35 is pulled by the fan 34 to open the ventilation channel 33, the blocking block 36 is inserted into the limiting groove 312, so as to block the air hole 311, and the suction cup 32 is adsorbed on the EVA film.

[0048] Referring to Figure 4 and Figure 5 , in order to reduce the wrinkles on the EVA film, the suction cup 32 is slidably connected to the air box 31, the waist-shaped hole 313 is arranged on the air box 31, and the waist-shaped hole 313 points to the air hole 311. The end of the suction cup 32 away from the base 1 penetrates through the waist-shaped hole 313 and is fixedly connected with a sliding block 38, the sliding block 38 is slidably connected to the inner side wall of the air box 31, and the moving direction of the sliding block 38 is the same as the direction of the waist-shaped hole 313. In addition, the sliding block 38 always blocks the waist-shaped hole 313, and the air box 31 is further provided with a driving assembly 5 for driving the sliding block 38 to slide.

[0049] When the suction cup 32 is adsorbed on the EVA film, the driving assembly 5 drives the four driving to be away from the air hole 311 at the same time, thereby pulling the EVA film, so that the EVA film is flat.

[0050] With reference to Figure 3 And Figure 5 The driving assembly 5 includes a return spring 51, one end of the return spring 51 is fixed on the sliding block 38 near one end of the air hole 311, the other end is fixed on the air box 31, the return spring 51 applies a spring force to the sliding block 38 away from the air hole 311. The driving assembly 5 further includes a driving block 52 arranged at the end of the sliding block 38 away from the return spring 51, and the air box 31 is provided with a third driving member for driving the driving block 52 to push the sliding block 38 to approach the air hole 311.

[0051] The third driving member includes a driving rod 53 in sliding connection with the air box 31, the moving direction of the driving rod 53 is the same as that of the sliding block 38. One end of the driving rod 53 is fixed on the driving block 52, the other end is arranged in T shape, and a rotating ring 54 coaxial with the air hole 311 is rotatably connected to the lower inner side of the air box 31. The rotating ring 54 is provided with a protrusion 56 corresponding to the driving rod 53 at the edge, and the protrusion 56 is provided with a connecting groove 561, the end of the driving rod 53 away from the driving block 52 is inserted into the connecting groove 561 and rotatably and slidingly connected in the connecting groove 561. The inner side of the rotating ring 54 is threadedly connected with a sleeve 55 through a ball, the sleeve 55 can drive the rotating ring 54 to rotate when translating along the axis, one end of the sleeve 55 is fixed on the blocking block 36, and a plurality of pressure relief holes are arranged on the sleeve 55 for connecting the inside and outside of the sleeve 55, and the pressure relief holes do not affect the driving of the rotating ring 54 by the sleeve 55.

[0052] When the blocking block 36 rises and is inserted into the limiting groove 312, the sleeve 55 drives the rotating ring 54 to rotate, the rotating ring 54 drives the driving rod 53 away from the air hole 311 through the protrusion 56, the driving block 52 is synchronously driven away from the air hole 311, and the return spring 51 also drives the sliding block 38 away from the air hole 311, so that the suction cup 32 pulls the EVA film flat. When the blocking block 36 descends and is separated from the limiting groove 312, the sleeve 55 reversely drives the rotating ring 54 to rotate, the protrusion 56 pulls the driving rod 53 to approach the air hole 311, the suction cup 32 returns to the original position, and waits for the next time to pull flat.

[0053] An electronic camera 6 for detecting the position of the EVA film is installed below the blocking block 36, the electronic camera 6 is electrically connected with a controller, the controller is electrically connected with the first moving motor, the second moving motor, the driving motor 422 and the hydraulic cylinder 415, and is used for cooperating with the deviation rectification work.

[0054] The implementation principle of the embodiment of the present application is that after the electronic camera 6 detects the position deviation of the EVA film, the deviation correction adjusting mechanism 4 adjusts the positions of the four suction cups 32, so that the suction cups 32 are aligned with and abut against the four corners of the EVA film, the fan 34 is started to make the suction cups 32 adsorb on the four corners of the EVA film, the EVA film is flattened, the deviation correction adjusting mechanism 4 adjusts the positions of the suction cups 32 again, so that the position of the EVA film is corrected, the fan 34 stops working, and then the suction cups 32 are separated from the EVA film.

[0055] The embodiments of the specific implementation are the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A deviation rectifying device for EVA cutting and laying machine, comprising a base (1) for supporting EVA film, characterized in that, The base (1) is provided with a support frame (2), the support frame (2) is provided with a suction positioning mechanism (3), the suction positioning mechanism (3) comprises a wind box (31), the four corner positions of the lower side of the wind box (31) are provided with suction cups (32) communicated with the inside of the wind box (31), the upper side of the wind box (31) is provided with a fan (34) communicated with the inside of the wind box (31), the wind box (31) and the support frame (2) are further provided with a deviation correction mechanism (4) for adjusting the position of the wind box (31), the lower side of the wind box (31) is provided with an electronic camera (6), and the electronic camera (6) is electrically connected with a controller; The deviation correction mechanism (4) comprises a rotating assembly (42) and a translation assembly (41), the rotating assembly (42) comprises a connecting block (421) rotatably connected to the upper side of the wind box (31), a driven gear (424) is arranged at the center of the upper side of the wind box (31), the driven gear (424) is engaged with a driving gear (423), the connecting block (421) is provided with a driving motor (422), and the output shaft of the driving motor (422) is arranged at the axis of the driving gear (423); and the translation assembly (41) is connected to the connecting block (421). The translation assembly (41) comprises a vertically arranged hydraulic cylinder (415), the piston rod of the hydraulic cylinder (415) is arranged on the connecting block (421), a first moving block (411) and a second moving block (413) are arranged above the hydraulic cylinder (415), the first moving block (411) is slidably connected with the support frame (2), the second moving block (413) is slidably connected with the first moving block (411), the moving direction of the first moving block (411) is horizontally perpendicular to the moving direction of the second moving block (413), the hydraulic cylinder (415) is arranged on the second moving block (413), the support frame (2) is provided with a first driving member for driving the first moving block (411) to move, and the first moving block (411) is provided with a second driving member for driving the second moving block (413) to move; The upper side of the wind box (31) is provided with a ventilation channel (33), the fan (34) is communicated with the inside of the wind box (31) through the ventilation channel (33), the opening of the ventilation channel (33) near the fan (34) is larger than the opening in the end of the ventilation channel (33) away from the fan (34), the ventilation channel (33) is provided with a blocking ball (35) for blocking the ventilation channel (33), the lower side of the wind box (31) is provided with a ventilation hole (311), the ventilation hole (311) is arranged opposite to the ventilation channel (33), the wind box (31) is slidably connected with a connecting rod (37) which only moves in the vertical direction, one end of the connecting rod (37) is fixed on the blocking ball (35), the other end of the connecting rod (37) passes through the ventilation hole (311) and is connected with a blocking block (36) for blocking the ventilation hole (311).

2. The deviation rectifying device for EVA cutting and paving machine according to claim 1, characterized in that, The wind box (31) is provided with a limiting groove (312) communicated with the air hole (311) on the lower side, the blocking block (36) is inserted into the limiting groove (312), the air hole (311) is provided with a sleeve (55) sleeved on the outer side of the connecting rod (37), the sleeve (55) is abutted on the hole wall of the air hole (311), and the sleeve (55) is fixed on the blocking block (36), and a plurality of evenly distributed pressure relief holes are formed in the sleeve (55).

3. The deviation rectifying device for EVA cutting and paving machine according to claim 2, characterized in that, The suction disc (32) is slidably connected with the wind box (31), and the wind box (31) is provided with a driving assembly (5) for driving the suction disc (32) to approach or move away from the air hole (311).

4. The deviation rectifying device for EVA cutting and paving machine according to claim 3, characterized in that, The wind box (31) is provided with a waist-shaped hole (313) opposite to the suction disc (32), one end of the suction disc (32) penetrates through the waist-shaped hole (313) and is fixed with a sliding block (38), the sliding block (38) is slidably connected in the wind box (31) and blocks the waist-shaped hole (313), the driving assembly (5) comprises a return spring (51), one end of the return spring (51) is fixed to one end of the sliding block (38) close to the air hole (311), the other end is fixed to the inside of the wind box (31), one end of the sliding block (38) away from the return spring (51) is abutted with a driving block (52), and the inside of the wind box (31) is provided with a third driving member for driving the driving block (52) to move towards the air hole (311).

5. The deviation rectifying device for EVA cutting and paving machine according to claim 4, characterized in that, The third driving member comprises a rotating ring (54) coaxial with the sleeve (55), the rotating ring (54) is rotatably connected with the wind box (31), the sleeve (55) and the rotating ring (54) are connected through ball threads, the rotating ring (54) is provided with a protrusion (56) corresponding to the driving block (52) at the edge, the protrusion (56) is provided with a connecting groove (561), the driving rod (53) is arranged between the protrusion (56) and the driving block (52), one end of the driving rod (53) is fixed to the driving block (52), the other end is rotatably and slidably arranged in the connecting groove (561), the driving rod (53) is slidably connected with the wind box (31), and the sliding direction of the driving rod (53) is the same as the moving direction of the sliding block (38).

6. The deviation rectifying device for EVA cutting and paving machine according to claim 1, characterized in that, The suction disc (32) is provided with a supporting net (321) close to one end of the EVA adhesive film.

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