CN117342328A

CN117342328A - EVA (ethylene-vinyl acetate) small strip automatic laying device and application method thereof

Info

Publication number: CN117342328A
Application number: CN202311573890.0A
Authority: CN
Inventors: 张珂; 王亚军
Original assignee: Changzhou Dongjie Automation Equipment Co ltd
Current assignee: Changzhou Dongjie Automation Equipment Co ltd
Priority date: 2023-11-22
Filing date: 2023-11-22
Publication date: 2024-01-05

Abstract

The invention relates to the technical field of photovoltaic assembly production, in particular to an EVA (ethylene-vinyl acetate) small strip automatic laying device and a use method thereof, wherein a charging barrel on an air expansion shaft is driven to unreel by a first power device, a tension roller is driven to tension a material belt by a second power device, the material belt is intermittently pulled by the roller to perform blanking operation by matching a punching mechanism and a cutting mechanism, and a solar panel is driven to move to a feeding platform and then is respectively abutted and righted on two long sides and two short sides of the solar panel by a first rectifying mechanism and a second rectifying mechanism. The EVA small strip structure is obtained through cutting equipment, the small strips are moved to a transferring area by adopting monitoring equipment matched with a first material taking mechanism, a plurality of small strips in the transferring area are sequentially laid to different positions of the solar panel after the solar panel is positioned in a resetting mode by matching with a second material taking mechanism, and finally the small strips are fixed by a welding mechanism in a spot-ironing mode. Realize the full-automatic laying of EVA strip on solar panel, improved photovoltaic module's wholeness ability and productivity.

Description

EVA (ethylene-vinyl acetate) small strip automatic laying device and application method thereof

Technical Field

The invention relates to the technical field of photovoltaic module production, in particular to an EVA (ethylene-vinyl acetate) small strip automatic laying device and a using method thereof.

Background

The ethylene-vinyl acetate copolymer (EVA) is used as an important packaging material in the photovoltaic battery industry due to the advantages of the ethylene-vinyl acetate copolymer in the aspects of adhesiveness, light transmittance and durability, and in the manufacturing process of the photovoltaic battery, the adhesive film is cut into a required size, the battery piece is packaged between glass and a back plate through the upper layer of EVA adhesive film and the lower layer of EVA adhesive film, so that the influence of the external environment on the electrical property of the battery piece is reduced, and the battery piece shadow crack of the photovoltaic module in the carrying and mounting processes can be prevented.

In the process of processing and producing the solar photovoltaic module, EVA small strips are generally added at the overlapping positions of two adjacent bus strips in the solar module so as to avoid short circuit and ensure smooth current guiding. The EVA strips are obtained by cutting the unreeled EVA sheets, and spot ironing and fixing are carried out after the EVA sheets are laid on the solar panel. At present, most of the production works adopt manual operation, so that the defects and the low efficiency exist, and the high automation of the production line is required to be realized in order to improve the overall performance and the productivity of the photovoltaic module.

Disclosure of Invention

The invention provides an EVA small strip automatic laying device and a using method thereof, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

The automatic EVA small strip laying device comprises cutting equipment and laying equipment, wherein the cutting equipment comprises a cutting frame, an unreeling mechanism, a tensioning mechanism, a punching mechanism, a pulling mechanism and a cutting mechanism which are arranged on the cutting frame along a first direction, the laying equipment comprises a laying frame, a correcting mechanism, a welding mechanism, a first material taking mechanism and a second material taking mechanism which are arranged on the laying frame, a blanking platform is arranged on the cutting frame and extends towards the laying equipment, and the first material taking mechanism and the second material taking mechanism are respectively arranged above the blanking platform and the correcting mechanism and can move along the first direction;

the unreeling mechanism comprises a first power device and an air expansion shaft, the tensioning mechanism comprises a second power device and a tension roller, the punching mechanism comprises an upper male die and a lower female die and is driven to move along a second direction through a third power device and a fourth power device respectively, the pulling mechanism comprises a conveying roller and a compression roller, the conveying roller is driven to rotate through a servo motor, the cutting mechanism comprises a fifth power device and a hob assembly, and the hob assembly is driven to move along the second direction through the fifth power device;

The punching mechanism is provided with a detection mechanism at one side close to the tensioning mechanism, the cutting mechanism is provided with a pressing mechanism at one side facing the pulling mechanism, a first through hole and a second through hole are formed in the punching platform along a second direction, the first through hole is close to one end of the second through hole, the upper male die and the lower female die are respectively located at the upper side and the lower side of the second through hole, the detection mechanism comprises a sixth power device and a sensor, the sensor is correspondingly arranged with the first through hole and is driven by the sixth power device to move along the second direction, and the first direction and the second direction are vertically arranged in a horizontal plane;

the laying rack comprises a feeding platform and a track beam arranged above the feeding platform along a first direction, the righting mechanism and the welding mechanism are arranged on the feeding platform, the first material taking mechanism and the second material taking mechanism are arranged on the track beam, the first material taking mechanism comprises a fifth supporting beam and a fifth linear module arranged on the fifth supporting beam, the second material taking mechanism comprises a sixth supporting beam and a sixth linear module arranged on the sixth supporting beam, the fifth supporting beam and the sixth supporting beam are arranged along a second direction and are in sliding connection with the track beam, the fifth linear module and the sixth linear module are arranged along a vertical direction and are respectively provided with a first connecting plate and a second connecting plate, a plurality of first suckers are arranged on the first connecting plate along a second direction, and a plurality of second suckers are arranged on the second connecting plate along the second direction and are arranged in parallel in the first direction;

The correcting mechanism comprises a first correcting mechanism and a second correcting mechanism which are respectively arranged corresponding to the long side and the short side of the solar panel, two groups of correcting mechanisms are respectively arranged, a first guide rail is arranged in the first direction of the upper edge of the feeding platform, the second correcting mechanism is arranged on the first guide rail and is in sliding connection with the first guide rail, and a conveying mechanism is also arranged on the feeding platform;

the conveying mechanism comprises a seventh power device and a conveying belt arranged along a second direction, the first deviation correcting mechanism comprises a first linear module arranged along the second direction and a first limiting assembly arranged on the first linear module, the conveying belt and the first linear module are arranged in parallel in the first direction, the second deviation correcting mechanism comprises an eighth mounting plate and a second limiting assembly arranged on the eighth mounting plate, the eighth mounting plate is arranged along the second direction and is in sliding connection with the first guide rail, and the two second deviation correcting mechanisms are driven by the eighth power device to synchronously approach or separate from the conveying mechanism;

the welding mechanism is in sliding connection with the first guide rail and is connected with the second deviation correcting mechanism through a first air cylinder, and the welding mechanism comprises a supporting seat arranged along a second direction and a plurality of heating units arranged on the supporting seat along the length direction.

Further, the blanking platform comprises a front half part and a rear half part extending out of the cutting frame, and the material pressing mechanism and the cutting mechanism are both arranged on the first supporting beam and are respectively positioned above the front half part and the rear half part;

the first through hole and the second through hole are both arranged on the front half part, the monitoring equipment is arranged above the rear half part corresponding to the rear half part, the monitoring equipment comprises mounting beams symmetrically arranged in the second direction, monitoring cameras are arranged on the mounting beams, and the mounting beams are positioned above the track beams.

Further, the third power device comprises a third supporting beam and a third linear module arranged on the third supporting beam along the length direction of the third supporting beam, the fourth power device comprises a fourth supporting beam and a fourth linear module arranged on the fourth supporting beam along the length direction of the fourth power device, and the third supporting beam and the fourth supporting beam are both arranged along the second direction;

a third mounting plate and a fourth mounting plate are respectively arranged on the third linear module and the fourth linear module, the upper male die is arranged on the third mounting plate through a punching cylinder, and the lower female die is arranged on the fourth mounting plate;

the upper male die comprises a fixed plate and a movable plate which are arranged in parallel, wherein the fixed plate is connected with an output shaft of a punching cylinder, a punching head is arranged on the fixed plate, the movable plate is connected with the fixed plate in a sliding mode through a connecting column, punching holes are formed in the movable plate corresponding to the punching head, a first compression spring is sleeved on the connecting column, and two ends of the first compression spring are respectively abutted to the fixed plate and the movable plate.

Further, a third guide rail and a fourth guide rail are respectively arranged on the third support beam and the fourth support beam along the length direction of the third support beam, and the third mounting plate and the fourth mounting plate are respectively connected with the third guide rail and the fourth guide rail in a sliding manner through a third sliding block and a fourth sliding block which are arranged on the third mounting plate and the fourth mounting plate;

the upper male die and the lower female die are correspondingly arranged and are all provided with a plurality of upper male dies and lower female dies along a second direction, a first supporting rail and a second supporting rail are respectively arranged on the third mounting plate and the fourth mounting plate along the length direction of the upper male dies and the fourth mounting plate, the punching cylinder and the lower female dies are respectively connected with the first supporting rail and the second supporting rail in a sliding mode through a first sliding seat and a second sliding seat, and a first rail lock and a second rail lock are respectively arranged on the first sliding seat and the second sliding seat.

Further, the sixth power device comprises a sixth motor and a sixth guide rail, wherein the sixth motor and the sixth guide rail are arranged on the supporting plate, the sixth guide rail is arranged along the second direction, a connecting frame is arranged on the sixth guide rail and is in sliding connection with the sixth guide rail, the sensor is arranged on the connecting frame, and the sixth motor drives the connecting frame to move along the second direction through a sixth transmission assembly;

The sixth transmission assembly comprises a rocker and a driving rod, one end of the rocker and the output shaft of the sixth motor coaxially rotate, the other end of the rocker is connected with the connecting frame through the driving rod, and two ends of the driving rod are respectively connected with the rocker and the connecting frame in a rotating mode through fish-eye bearings arranged on the driving rod.

Further, the fifth power device comprises a fifth motor, a driving belt wheel and a fifth sliding seat, wherein the driving belt wheel is arranged along a second direction and is powered by the fifth motor, and the hob assembly is fixed on the fifth sliding seat and is connected with the driving belt wheel by the fifth sliding seat;

the hob assembly comprises a connecting seat and a cutterhead arranged on the connecting seat, the cutterhead is rotationally connected with the connecting seat through a connecting shaft, the connecting seat is hung at the bottom of the fifth sliding seat through a supporting shaft and is rotationally connected with the fifth sliding seat, the connecting shaft is arranged along a first direction, and the supporting shaft is vertically arranged;

the bottom of the fifth sliding seat is provided with a double-head air cylinder, output shafts at two ends of the double-head air cylinder are arranged at 180 degrees, and a butt plate is arranged on the connecting seat corresponding to the two output shafts of the double-head air cylinder.

Further, a fifth guide rail is arranged on the first support beam along the length direction of the first support beam, and the fifth slide seat is fixedly connected with the driving belt of the driving belt wheel and is in sliding connection with the fifth guide rail;

the pressing mechanism comprises a pressing plate arranged along a second direction, the pressing plate is connected with the first supporting beam through a fifth air cylinder, the fifth air cylinder is vertically arranged and is at least provided with two in the second direction, a base is arranged below the joint of the front half part and the rear half part, the pressing plate is correspondingly arranged with the base, and a knife groove is formed in the joint of the rear half part and the front half part.

Further, the first limiting assembly comprises a third sliding seat and a third air cylinder arranged on the third sliding seat, the third sliding seat is arranged on the first linear module and is in sliding connection with the first linear module, and the third air cylinder is vertically fixed on the third sliding seat and drives the stop block to move along the vertical direction;

the second limiting assembly comprises a positioning wheel arranged on the eighth mounting plate, the rotation axis of the positioning wheel is vertically arranged, the positioning wheel is at least provided with two positioning wheels in the length direction of the eighth mounting plate, the eighth power device comprises an eighth motor and a synchronous pulley which are arranged on the feeding platform, clamping plates are arranged on the eighth mounting plate, the synchronous pulley is arranged along the first direction, and belts on two sides of the synchronous pulley are respectively fixedly connected with the two clamping plates on the two second deviation correcting mechanisms;

The welding device comprises a first guide rail, a welding mechanism, a conveying mechanism, a sliding support, a third rail lock, a plurality of first rollers and a rotating shaft, wherein the sliding support is arranged on the first guide rail and is positioned between the welding mechanism and the conveying mechanism and is in sliding connection with the first guide rail, the sliding support is provided with the third rail lock along the second direction, the sliding support is provided with the plurality of first rollers along the length direction of the sliding support, and the rotating shaft of the first rollers is parallel to the first direction.

Further, the heating unit comprises a fourth sliding seat, a fourth air cylinder, an installation seat and a heating head, wherein the fourth air cylinder, the installation seat and the heating head are arranged on the fourth sliding seat, the fourth air cylinder drives the installation seat and drives the heating head to move along the vertical direction, a second guide rail is arranged on the supporting seat along the length direction of the supporting seat, and the fourth sliding seat is in sliding connection with the second guide rail and is provided with a fourth rail lock;

the heating device comprises a mounting seat, a heating head, a guide post, a seventh guide rail, a second compression spring, a first compression spring, a second compression spring, a third compression spring, a fourth compression spring, a fifth compression spring, a sixth compression spring and a fourth compression spring, wherein the seventh guide rail, the guide post and the second compression spring are arranged on the mounting seat, the seventh guide rail and the guide post are all arranged along the vertical direction, the heating head is in sliding connection with the mounting seat through the guide post, the heating head is also in sliding connection with the seventh guide rail, the second compression spring is sleeved on the guide post, and the bottom end of the second compression spring is abutted against the heating head;

The fourth sliding seat is provided with a mounting frame, the mounting frame is provided with a second roller, the second roller is positioned below the heating head, and the rotation axis of the second roller is parallel to the second direction.

The application method of the EVA small strip automatic laying device adopts the EVA small strip automatic laying device and comprises the following steps:

after the long edge of one side of the solar panel is received by the conveying belt, the solar panel is driven by a seventh power device to move along a second direction, and after the solar panel is transferred to the feeding platform, the long edges of two sides and the short edges of two sides of the solar panel are respectively abutted and corrected by a first correction mechanism and a second correction mechanism;

the first power device drives a charging barrel on the air expansion shaft to unwind, the second power device drives a tension roller to tension the unwound material belt, the servo motor drives a conveying roller and the pressing roller is matched to pull the material belt intermittently to pass through a punching mechanism and a cutting mechanism;

during stopping of the conveying roller, the sensor is driven by the sixth power device to detect the edge position of one side of the strip of material through the first through hole, and the upper male die and the lower female die are synchronously driven by the third power device and the fourth power device to move along the second direction to adjust the punching position, so that the upper male die is driven to press the lower female die to finish punching operation on the strip of material;

The material belt led out of the traction mechanism is pressed by the material pressing mechanism, and the fifth power device is matched to drive the hob assembly to move along the second direction, so that the material belt is cut in the width direction;

transferring the cut EVA strips to the rear half part of a blanking platform through a first material taking mechanism, synchronously clamping a plurality of EVA strips through a second material taking mechanism, and paving the EVA strips to different positions of a solar panel along a first direction;

the welding mechanism is driven by the first air cylinder to approach the second deviation correcting mechanism, so that the heating unit is positioned above the solar panel, and the EVA small strips laid on the solar panel are fixed by spot ironing through the heating unit;

in the process of taking and placing the EVA small strips on the rear half part of the blanking platform, matching with monitoring equipment to position the EVA small strips;

in the righting operation process of the solar panel on the feeding platform, the welding mechanism is driven by the first air cylinder to be far away from the second deviation rectifying mechanism, and after the EVA strips are laid on the solar panel, the welding mechanism is driven by the first air cylinder to be close to the second deviation rectifying mechanism.

The beneficial effects of the invention are as follows:

according to the invention, EVA material strips are punched and cut into small strip structures through cutting equipment, the cut small strips are moved to a transfer area on a blanking platform by adopting monitoring equipment in combination with a first material taking mechanism, then a plurality of EVA small strips in the transfer area are synchronously taken by adopting a second material taking mechanism, and are sequentially laid to different positions of the solar panel after being positioned in a resetting way, and finally EVA small strips positioned at the short sides of two sides of the solar panel are fixed by adopting a welding mechanism in a spot ironing way. Realize the full-automatic laying of EVA strip on solar panel, improved photovoltaic module's wholeness ability and productivity.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

FIG. 1 is a schematic structural view of an EVA small strip automatic laying device in the invention;

FIG. 2 is a schematic diagram of a cutting apparatus according to the present invention;

FIG. 3 is a schematic view of an exploded structure of a cutting apparatus according to the present invention;

FIG. 4 is a schematic view of a cutting frame according to the present invention;

FIG. 5 is a schematic view of a punching mechanism according to the present invention;

FIG. 6 is an enlarged view of a partial structure at A in FIG. 5;

FIG. 7 is a schematic view of a pulling mechanism according to the present invention;

FIG. 8 is a schematic view of a cutting mechanism according to the present invention;

FIG. 9 is a front view of the hob assembly of the present invention;

FIG. 10 is a schematic cross-sectional view of a punching mechanism and a cutting mechanism according to the present invention;

FIG. 11 is a schematic view of the unreeling mechanism of the present invention;

FIG. 12 is a schematic diagram illustrating the operation of the detection mechanism in combination with the punching mechanism according to the present invention;

FIG. 13 is an enlarged view of a part of the structure at B in FIG. 12;

FIG. 14 is a schematic view of the construction of the laying apparatus of the present invention;

FIG. 15 is a schematic view of the first and second take off mechanisms of the present invention;

FIG. 16 is a schematic view of the structure of the righting mechanism and the welding mechanism of the present invention;

FIG. 17 is an exploded view of the righting mechanism and welding mechanism of the present invention;

FIG. 18 is a schematic diagram of a resetting mechanism according to the present invention;

FIG. 19 is a schematic diagram of the connection of the second deviation correcting assembly to the welding mechanism according to the present invention;

FIG. 20 is a schematic view of a sliding support according to the present invention;

FIG. 21 is a schematic view showing the structure of a heating unit according to the present invention.

Reference numerals: 11. a cutting frame; 111. a blanking platform; 111a, a front half; 111b, a rear half; 112. a first through hole; 113. a second through hole; 114. a base; 115. a knife slot; 116. a load bearing rail; 117. a mounting groove; 118. a clamp; 12. monitoring equipment; 121. mounting a beam; 122. monitoring a camera; 13. laying a frame; 131. a feeding platform; 132. a rail beam; 2. an unreeling mechanism; 21. a first power unit; 211. a first motor; 212. a speed reducer; 213. an output gear; 22. an air expansion shaft; 221. a roller bearing; 222. a driven gear; 23. a feeding mechanism; 231. a feeding frame; 232. a vertical rail; 233. a feeding cylinder; 234. a feeding support; 235. connecting guide rails; 3. a tensioning mechanism; 31. a second power device; 311. a second cylinder; 312. a connecting plate; 313. a connecting shaft; 314. swing arms; 32. a tension roller; 33. a buffer device; 4. a punching mechanism; 41. an upper male die; 411. a first slider; 412. a first track lock; 413. punching air cylinders; 414. a fixing plate; 415. a movable plate; 416. punching heads; 417. a connecting column; 418. a first compression spring; 42. a lower female die; 421. a second slider; 422. a second track lock; 43. a third power device; 431. a third support beam; 432. a third guide rail; 433. a third linear module; 434. a third mounting plate; 435. a first support rail; 436. a third slider; 44. a fourth power device; 441. a fourth support beam; 442. a fourth guide rail; 443. a fourth linear module; 444. a fourth mounting plate; 445. a second support rail; 446. a fourth slider; 45. a detection mechanism; 451. a sixth power plant; 452. a support plate; 453. a sixth motor; 454. a sixth guide rail; 455. a connecting frame; 456. a sixth transmission assembly; 456a, rocker; 456b, a drive rod; 456c, fish-eye bearings; 457. a sensor; 5. a pulling mechanism; 51. a conveying roller; 52. a press roller; 53. a servo motor; 6. a cutting mechanism; 61. a first support beam; 611. a fifth guide rail; 62. a fifth power unit; 621. a fifth motor; 622. a driving belt wheel; 623. a fifth slider; 624. a double-headed cylinder; 63. a hob assembly; 631. a connecting seat; 632. an abutting plate; 633. a cutterhead; 634. a connecting shaft; 635. a support shaft; 64. a material pressing mechanism; 641. a pressing plate; 642. a fifth cylinder; 7. a righting mechanism; 71. a first deviation correcting mechanism; 711. a first linear module; 712. a first limit assembly; 712a, a third slide; 712b, third cylinder; 712c, stops; 72. a second deviation correcting mechanism; 721. an eighth mounting plate; 722. a clamping plate; 723. the second limiting component; 723a, positioning wheels; 73. a conveying mechanism; 731. a seventh power plant; 732. a conveyor belt; 74. a first guide rail; 75. an eighth power plant; 751. an eighth motor; 752. a synchronous pulley; 76. a first cylinder; 77. a sliding support; 771. a third track lock; 772. a first roller; 8. a welding mechanism; 81. a support base; 811. a second guide rail; 82. a heating unit; 821. a fourth slider; 822. a fourth track lock; 823. a fourth cylinder; 824. a mounting base; 825. a heating head; 826. a seventh guide rail; 827. a guide post; 828. a second compression spring; 83. a mounting frame; 831. a second roller; 91. a first take-off mechanism; 911. a fifth support beam; 912. a fifth linear module; 913. a first connection plate; 914. a first suction cup; 92. a second extracting mechanism; 921. a sixth support beam; 922. a sixth linear module; 923. a second connecting plate; 924. and a second suction cup.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

An automatic EVA small strip laying device as shown in figures 1 to 21 comprises cutting equipment and laying equipment, wherein the cutting equipment comprises a cutting frame 11, an unreeling mechanism 2, a tensioning mechanism 3, a punching mechanism 4, a pulling mechanism 5 and a cutting mechanism 6 which are arranged on the cutting frame in a first direction, the laying equipment comprises a laying frame 13, a righting mechanism 7, a welding mechanism 8, a first material taking mechanism 91 and a second material taking mechanism 92 which are arranged on the laying frame, a blanking platform 111 is arranged on the cutting frame 11 and extends to the laying equipment, the first material taking mechanism 91 and the second material taking mechanism 92 are respectively arranged above the blanking platform 111 and the righting mechanism 7 and can move along the first direction, and a monitoring device 12 is arranged above the blanking platform 111.

According to the invention, EVA material strips are punched through cutting equipment and cut into small strip structures, the monitoring equipment 12 is matched with the first material taking mechanism 91 to move the cut small strips to a transferring area on the blanking platform 111, then the second material taking mechanism 92 is matched with the second material taking mechanism to synchronously take a plurality of EVA small strips in the transferring area, the EVA small strips are sequentially laid at different positions of the solar panel after being subjected to normalization and positioning, and finally the EVA small strips positioned at the short sides of the two sides of the solar panel are fixed by hot stamping through the welding mechanism 8. Realize the full-automatic laying of EVA strip on solar panel, improved photovoltaic module's wholeness ability and productivity.

Wherein the unreeling mechanism 2 comprises a first power device 21 and an air expansion shaft 22, the tensioning mechanism 3 comprises a second power device 31 and a tension roller 32, the punching mechanism 4 comprises an upper male die 41 and a lower female die 42 and is driven to move along a second direction through a third power device 43 and a fourth power device 44 respectively, the pulling mechanism 5 comprises a conveying roller 51 and a compression roller 52, the conveying roller 51 is driven to rotate through a servo motor 53, the cutting mechanism 6 comprises a fifth power device 62 and a hob assembly 63, and the hob assembly 63 is driven to move along the second direction through the fifth power device 62.

In the blanking process of the material belt, the material cylinder is sleeved on the air expansion shaft 22 and is driven by the first power device 21 to perform unreeling operation, and referring to fig. 4 and 11 specifically, the first power device 21 comprises a first motor 211, a speed reducer 212 and an output gear 213, the air expansion shaft 22 is rotationally connected with the cutting frame 11 through roller bearings 221 arranged at two ends of the air expansion shaft 22, a driven gear 222 is arranged at one end of the air expansion shaft 22 and coaxially rotates with the air expansion shaft, the output gear 213 is meshed with the driven gear 222 for transmission, and the output gear 213 is arranged on an output shaft of the speed reducer 212 and is driven to rotate through the first motor 211.

Further referring to fig. 11, a feeding mechanism 23 is disposed at the unreeling mechanism 2, the feeding mechanism 23 comprises a symmetrically disposed feeding frame 231, a vertical rail 232, a feeding cylinder 233 and a feeding support 234 are disposed on the feeding frame 231, the feeding support 234 is slidably connected with the vertical rail 232 and is driven by the feeding cylinder 233 to move along the vertical direction, a connection guide rail 235 is disposed on the feeding support 234, a bearing guide rail 116 is disposed on the cutting frame 11 corresponding to the connection guide rail 235, the bearing guide rail 116 guides to a mounting groove 117 for mounting a roller bearing 221, a clamp 118 is disposed at the mounting groove 117, and rapid dismounting of the air expansion shaft 22 at the mounting groove 117 is facilitated. The feeding mechanism 23 is arranged to facilitate the full-roll feeding to the unreeling mechanism 2.

The tensioning mechanism 3 as shown in fig. 4, wherein the second power device 31 comprises a second cylinder 311, a connecting plate 312, a connecting shaft 313 and a swing arm 314, wherein two ends of the connecting shaft 313 are fixedly connected with one end of the connecting plate 312 and one end of the swing arm 314 respectively, the other end of the connecting plate 312 is rotatably connected with an output shaft of the second cylinder 311, and a tension roller 32 is arranged at the other end of the swing arm 314; a first guide roller and a second guide roller are respectively arranged on two sides of the tension roller 32 along the first direction, the first guide roller and the second guide roller are respectively arranged above the tension roller 32, and a buffer device 33 is arranged below the tension roller 32 corresponding to the swing arm 314.

In the implementation process, the first power device 21 is used for unreeling the charging barrel on the air expansion shaft 22 for a set length, and the second air cylinder 311 is used for driving one end of the swing arm 314 to rotate, so that the tension roller 32 arranged at the other end of the swing arm 314 moves and tightens the unreeled charging belt; during the intermittent driving of the material belt traveling process of the pulling mechanism 5, the second cylinder 311 drives the tension roller 32 to synchronously move.

The punching mechanism 4 is provided with the detection mechanism 45 on one side close to the tensioning mechanism 3, the cutting mechanism 6 is provided with the pressing mechanism 64 on one side towards the pulling mechanism 5, the punching platform 111 is provided with a first through hole 112 and a second through hole 113 along a second direction, the first through hole 112 is arranged near one end of the second through hole 113, the upper punch 41 and the lower die 42 are respectively located on the upper side and the lower side of the second through hole 113, the detection mechanism 45 comprises a sixth power device 451 and a sensor 457, the sensor 457 is arranged corresponding to the first through hole 112 and is driven by the sixth power device 451 to move along the second direction, and the first direction and the second direction are vertically arranged in a horizontal plane.

As shown in fig. 8 to 10, the cutting mechanism 6 guides the unreeled material belt to the position of the material pressing mechanism 64 and the cutting mechanism 6 through the pulling mechanism 5, and the cutting mechanism 6 is matched with the material pressing mechanism 64 to enable the cutting edge of the EVA small strip to be flatter and the adhesive tape to be more accurate in size.

In the actual production process, the material belt can displace in the width direction (namely the second direction) in the conveying process, so that the punching position of the punching mechanism 4 on the material belt is influenced.

As shown in fig. 14 and 15, the laying frame 13 includes a feeding platform 131 and a rail beam 132 disposed above the feeding platform 131 along a first direction, the righting mechanism 7 and the welding mechanism 8 are disposed on the feeding platform 131, the first and second extracting mechanisms 91 and 92 are disposed on the rail beam 132, the first extracting mechanism 91 includes a fifth supporting beam 911 and a fifth linear module 912 disposed thereon, the second extracting mechanism 92 includes a sixth supporting beam 921 and a sixth linear module 922 disposed thereon, the fifth supporting beam 911 and the sixth supporting beam 921 are disposed along a second direction and are slidably connected with the rail beam 132, the fifth and sixth linear modules 912 and 922 are disposed along a vertical direction and are respectively provided with a first connecting plate 913 and a second connecting plate 923 thereon, the first connecting plate 913 is provided with a plurality of first suction cups 914 along the second direction, and the second connecting plate 923 is provided with a plurality of second suction cups 924 along the second direction and a plurality of groups are disposed in parallel to the first direction.

The first material taking mechanism 91 and the second material taking mechanism 92 are both in sliding connection with the track beam 132, in the first material taking mechanism 91, the punched EVA strips are conveyed to a transferring area on the punching platform 111 by a plurality of first sucking discs 914 driven by a fifth linear module 912, and the EVA strips at the transferring area are taken to different positions of the solar panel by a plurality of second sucking discs 924 driven by a sixth branched module. Namely, the first material taking mechanism 91 is used for placing the number of EVA strips required by one solar panel in a transferring area, and the second material taking mechanism 92 is matched for sequentially laying a plurality of EVA strips required by one solar panel onto the solar panel.

As shown in fig. 16 and 17, the correcting mechanism 7 includes a first correcting mechanism 71 and a second correcting mechanism 72 which are respectively disposed corresponding to the long side and the short side of the solar panel, and are respectively disposed in two groups, a first guide rail 74 is disposed in a first direction along the upper edge of the feeding platform 131, and the second correcting mechanism 72 is disposed on the first guide rail 74 and is slidably connected with the first guide rail 74, and a conveying mechanism 73 is further disposed on the feeding platform 131. The conveying mechanism 73 comprises a seventh power device 731 and a conveying belt 732 arranged along a second direction, the first deviation correcting mechanism 71 comprises a first linear module 711 arranged along the second direction and a first limiting component 712 arranged on the first linear module 711, a plurality of conveying belts 732 and first linear modules 711 are arranged in parallel along the first direction, the second deviation correcting mechanism 72 comprises an eighth mounting plate 721 and a second limiting component 723 arranged on the eighth mounting plate 721, the eighth mounting plate 721 is arranged along the second direction and is in sliding connection with the first guide rail 74, and the two second deviation correcting mechanisms 72 are driven by the eighth power device 75 to synchronously approach or separate towards the conveying mechanism 73; the welding mechanism 8 is slidably connected to the first guide rail 74 and is connected to the second deviation correcting mechanism 72 via the first cylinder 76, and the welding mechanism 8 includes a support base 81 provided in the second direction and a plurality of heating units 82 provided thereon in the length direction thereof.

In the actual production process, the solar panel is matched with the conveying mechanism 73 to be conveyed onto the feeding platform 131 along the second direction from one side of the feeding platform 131, and the solar panel is accurately aligned and positioned through the two first deviation correcting mechanisms 71 and the two second deviation correcting mechanisms 72 arranged on the periphery of the conveying mechanism 73, so that more stable and accurate position is provided for spot ironing fixation of EVA small strips on the solar panel.

Specifically, the two first deviation correcting assemblies are driven to act on the long sides of the two sides of the solar panel on the conveying mechanism 73 respectively, so that the solar panel is subjected to the correcting and positioning in the second direction; and the two second deviation correcting assemblies are driven to act on the short sides of the two sides of the solar panel respectively, so that the solar panel is positioned in the first direction. After the centering and positioning of the solar panel are completed through the first correcting mechanism 71 and the second correcting mechanism 72, the EVA strips laid on the short edges of the two sides of the solar panel are fixed by spot ironing through the welding mechanism 8.

In the present invention, as shown in fig. 3, the cutting frame 11, the blanking platform 111 includes a front half 111a and a rear half 111b extending out of the cutting frame 11, and the pressing mechanism 64 and the cutting mechanism 6 are both disposed on the first support beam 61 above the front half 111a and the rear half 111b, respectively; the first through hole 112 and the second through hole 113 are both provided on the front half 111a, and the monitoring device 12 is provided thereon corresponding to the rear half 111b, including a mounting beam 121 symmetrically provided in the second direction, a monitoring camera 122 is provided on the mounting beam 121, and the mounting beam 121 is located above the rail beam 132.

Further, referring to the cutting mechanism 6 shown in fig. 8 and 9, the fifth power device 62 includes a fifth motor 621, a driving pulley 622, and a fifth slide 623, the driving pulley 622 being disposed in the second direction and powered by the fifth motor 621, and the hob assembly 63 being fixed to the fifth slide 623 and connected to the driving pulley 622 by the fifth slide 623; the hob assembly 63 comprises a connecting seat 631 and a cutterhead 633 arranged on the connecting seat 631, the cutterhead 633 is rotationally connected with the connecting seat 631 through a connecting shaft 634, the connecting seat 631 is hung at the bottom of the fifth sliding seat 623 through a supporting shaft 635 and is rotationally connected with the fifth sliding seat 623, the connecting shaft 634 is arranged along a first direction, and the supporting shaft 635 is vertically arranged; the bottom of the fifth sliding seat 623 is provided with a double-head air cylinder 624, output shafts at two ends of the double-head air cylinder 624 are arranged at 180 degrees, and two output shafts corresponding to the double-head air cylinder 624 on the connecting seat 631 are provided with abutting plates 632.

A fifth guide rail 611 is provided on the first support beam 61 in the length direction thereof, and a fifth slide 623 is fixedly connected to the belt of the driving pulley 622 and slidably connected to the fifth guide rail 611; the pressing mechanism 64 includes a pressing plate 641 disposed along a second direction, the pressing plate 641 is connected to the first support beam 61 by a fifth cylinder 642, the fifth cylinder 642 is vertically disposed and is provided with at least two in the second direction, a base 114 is disposed below a junction of the front half 111a and the rear half 111b, the pressing plate 641 is disposed corresponding to the base 114, and a knife groove 115 is disposed at a junction of the rear half 111b and the front half 111 a.

In a specific implementation process, the double-head air cylinder 624 is abutted against the abutting plate 632 to fix the connecting seat 631, so that the hob assembly 63 is prevented from rotating under the driving of the connecting seat 631 in the cutting process, and two abutting plates 632 are symmetrically arranged on two sides of the double-head air cylinder 624; in the process of reciprocating motion of the hob assembly 63 along the second direction, after the cutterhead 633 completes one cutting, the double-head air cylinder 624 is driven to switch the output shaft to act on the other abutting plate 632, so that the cutterhead 633 swings slightly before turning to cutting, the situation that the cutterhead 633 and the connecting shaft 634 are blocked due to clamping of the cutterhead 633 and the cutter groove 115 on the blanking platform 111 is avoided, the cutterhead 633 always rolls normally in the cutting process, and the cutting of EVA strips is smooth and accurate.

In the present invention, as shown in the punching mechanism 4 of fig. 5, the third power unit 43 includes a third support beam 431 and a third linear module 433 disposed thereon along the length direction thereof, and the fourth power unit 44 includes a fourth support beam 441 and a fourth linear module 443 disposed thereon along the length direction thereof, the third support beam 431 and the fourth support beam 441 being disposed along the second direction; a third mounting plate 434 and a fourth mounting plate 444 are respectively provided on the third linear die set 433 and the fourth linear die set 443, the upper punch 41 is provided on the third mounting plate 434 through the punching cylinder 413, and the lower die 42 is provided on the fourth mounting plate 444.

Further, a third guide rail 432 and a fourth guide rail 442 are respectively provided on the third support beam 431 and the fourth support beam 441 along the length direction thereof, and the third mounting plate 434 and the fourth mounting plate 444 are respectively slidably connected with the third guide rail 432 and the fourth guide rail 442 through a third slider 436 and a fourth slider 446 provided thereon; the upper punch 41 and the lower die 42 are correspondingly arranged and are respectively arranged in a plurality along the second direction, a first support rail 435 and a second support rail 445 are respectively arranged on the third mounting plate 434 and the fourth mounting plate 444 along the length direction, the punching cylinder 413 and the lower die 42 are respectively connected with the first support rail 435 and the second support rail 445 in a sliding manner through a first sliding seat 411 and a second sliding seat 421, and a first rail lock 412 and a second rail lock 422 are respectively arranged on the first sliding seat 411 and the second sliding seat 421.

The third mounting plate 434 and the fourth mounting plate 444 provided thereon are respectively driven to move in the second direction by the third linear module 433 and the fourth linear module 443 fixed to the third support beam 431 and the fourth support beam 441, so that the offset distance of the discharge belt in the width direction thereof detected by the detecting mechanism 45 is matched, and the positions of the upper punch 41 and the lower die 42 respectively provided on the third mounting plate 434 and the fourth mounting plate 444 in the second direction are correspondingly adjusted. The third guide rail 432 and the fourth guide rail 442 are respectively arranged on the third support beam 431 and the fourth support beam 441 and are respectively in sliding connection with the sliding blocks on the two mounting plates, so that the connection between the two mounting plates and the two support beams is firmer, and the movement of the two mounting plates is smoother.

The upper male die 41 comprises a fixed plate 414 and a movable plate 415 which are arranged in parallel, the fixed plate 414 is connected with an output shaft of the punching cylinder 413, a punching head 416 is arranged on the fixed plate 414, the movable plate 415 is connected with the fixed plate 414 in a sliding mode through a connecting column 417, punching holes are formed in the movable plate 415 corresponding to the punching head 416, a first compression spring 418 is sleeved on the connecting column 417, and two ends of the first compression spring 418 are respectively abutted to the fixed plate 414 and the movable plate 415.

In the actual production process, the fixed plate 414 is driven by the punching cylinder 413 and drives the punching head 416 arranged on the fixed plate 414 to move towards the lower die 42, the movable plate 415 arranged at one end of the punching head 416 away from the fixed plate 414 is used for pressing the material belt on the lower die 42, along with the continuous driving of the punching cylinder 413, the movable plate 415 is in sliding connection with the fixed plate 414 and gradually approaches the fixed plate 414 through the guide post 827, the punching head 416 penetrates through the movable plate 415 and punches a material belt part pressed on the lower die 42, after punching, the fixed plate 414 is driven by the punching cylinder 413 to retract, and the movable plate 415 is restored to the end position of the punching head 416 under the driving of the first compression spring 418. The arrangement of the movable plate 415 not only can improve punching accuracy, but also can enable the punching edge on the material belt to be smoother.

In the present invention, as shown in the detection mechanism 45 of fig. 6, the sixth power device 451 includes a sixth motor 453 and a sixth rail 454 provided on the support plate 452, the sixth rail 454 is provided in the second direction, the link frame 455 is provided on the sixth rail 454 and slidably connected thereto, the sensor 457 is provided on the link frame 455, and the sixth motor 453 drives the link frame 455 to move in the second direction through the sixth transmission assembly 456; the sixth transmission assembly 456 includes a rocker 456a and a driving rod 456b, one end of the rocker 456a rotates coaxially with the output shaft of the sixth motor 453, the other end of the rocker 456a is connected with the connecting frame 455 through the driving rod 456b, and two ends of the driving rod 456b are respectively connected with the rocker 456a and the connecting frame 455 in a rotating manner through fish-eye bearings 456c arranged thereon.

Referring further to fig. 12 and 13, the sensor 457 is disposed under the first through hole 112 of the blanking stage 111 through the connection frame 455 such that the sensor 457 can detect the edge position of the material tape through the first through hole 112. The rotation of the output shaft of the sixth motor 453 is converted into the horizontal displacement of the link 455 in the second direction by the rocker 456a in cooperation with the driving lever 456b rotatably coupled thereto. The specific movement distance of the link 455 in the second direction can be converted by the rotation angle of the output shaft of the sixth motor 453.

As shown in fig. 18 and 19, the first limiting assembly 712 includes a third slide base 712a and a third cylinder 712b disposed thereon, the third slide base 712a is disposed on the first linear module 711 and slidably connected thereto, the third cylinder 712b is vertically fixed on the third slide base 712a and drives the stopper 712c to move in the vertical direction; the second limiting assembly 723 includes a positioning wheel 723a disposed on the eighth mounting plate 721, a rotation axis of the positioning wheel 723a is disposed vertically, and the positioning wheel 723a is disposed at least two in a length direction of the eighth mounting plate 721, the eighth power device 75 includes an eighth motor 751 and a synchronous pulley 752 disposed on the loading platform 131, a clamping plate 722 is disposed on the eighth mounting plate 721, the synchronous pulley 752 is disposed along the first direction, and belts on two sides of the synchronous pulley 752 are respectively fixedly connected with the two clamping plates 722 on the two second deviation correcting mechanisms 72.

As shown in fig. 20, a slide mount 77 is provided on the first guide rail 74, the slide mount 77 is located between the welding mechanism 8 and the conveying mechanism 73 and is slidably connected to the first guide rail 74, a third rail lock 771 is provided on the slide mount 77, the slide mount 77 is provided in the second direction, a plurality of first rollers 772 are provided on the slide mount 77 in the length direction thereof, and the rotation axis of the first rollers 772 is arranged in parallel with the first direction.

As shown in fig. 21, the heating unit 82 includes a fourth slide base 821 and a fourth cylinder 823, a mounting seat 824 and a heating head 825 provided thereon, the fourth cylinder 823 drives the mounting seat 824 and drives the heating head 825 to move in the vertical direction, a second guide rail 811 is provided on the support seat 81 in the length direction thereof, and the fourth slide base 821 is slidably connected with the second guide rail 811 and is provided thereon with a fourth rail lock 822; a seventh guide rail 826, a guide post 827 and a second compression spring 828 are arranged on the mounting seat 824, the seventh guide rail 826 and the guide post 827 are all arranged along the vertical direction, the heating head 825 is in sliding connection with the mounting seat 824 through the guide post 827, the heating head 825 is also in sliding connection with the seventh guide rail 826, the second compression spring 828 is sleeved on the guide post 827, and the bottom end of the second compression spring is abutted with the heating head 825; a mounting frame 83 is provided on the fourth slide 821, a second roller 831 is provided on the mounting frame 83, the second roller 831 is located below the heating head 825, and a rotation axis of the second roller 831 is disposed parallel to the second direction.

The invention further discloses a use method of the EVA small strip automatic paving device, which comprises the following steps:

After the long side of one side of the solar panel is received by the conveying belt 732, the solar panel is driven to move along the second direction by the seventh power device 731, and when the solar panel is transferred to the feeding platform 131, the long sides and the short sides of the two sides of the solar panel are respectively abutted and corrected by the first correction mechanism 71 and the second correction mechanism 72;

the first power device 21 drives the charging barrel on the air expansion shaft 22 to unwind, the second power device 31 drives the tension roller 32 to tension the unwound material belt, the servo motor 53 drives the conveying roller 51 and the press roller 52 is matched to draw the material belt intermittently to pass through the punching mechanism 4 and the cutting mechanism 6;

during stopping of the conveying roller 51, the sensor 457 is driven by the sixth power device 451 to detect the edge position of one side of the strip width through the first through hole 112, and the upper punch 41 and the lower die 42 are synchronously driven by the third power device 43 and the fourth power device 44 to move along the second direction to adjust the punching position, so that the upper punch 41 is driven to press the lower die 42 to finish the punching operation on the strip;

the material belt led out of the traction mechanism 5 is pressed by the pressing mechanism 64, and the hob assembly 63 is driven by the fifth power device 62 to move along the second direction, so that the material belt is cut in the width direction;

Transferring the cut EVA strips to the rear half 111b of the blanking platform 111 through the first material taking mechanism 91, synchronously clamping a plurality of EVA strips through the second material taking mechanism 92, and laying the EVA strips to different positions of the solar panel along the first direction;

the welding mechanism 8 is driven by the first air cylinder 76 to approach the second deviation correcting mechanism 72, the heating unit 82 is positioned above the solar panel, and EVA small strips laid on the solar panel are fixed by spot ironing through the heating unit 82;

in the process of taking and placing the EVA small strips on the rear half 111b of the blanking platform 111, the EVA small strips are positioned by matching with the monitoring equipment 12;

in the process of the solar panel righting operation on the feeding platform 131, the first cylinder 76 drives the welding mechanism 8 to be far away from the second deviation rectifying mechanism 72, and after the EVA strips are laid on the solar panel, the first cylinder 76 drives the welding mechanism 8 to be close to the second deviation rectifying mechanism 72.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The automatic EVA small strip laying device is characterized by comprising cutting equipment and laying equipment, wherein the cutting equipment comprises a cutting frame, an unreeling mechanism, a tensioning mechanism, a punching mechanism, a pulling mechanism and a cutting mechanism which are arranged on the cutting frame along a first direction, the laying equipment comprises a laying frame, a righting mechanism, a welding mechanism, a first material taking mechanism and a second material taking mechanism which are arranged on the laying frame, a blanking platform is arranged on the cutting frame and extends towards the laying equipment, and the first material taking mechanism and the second material taking mechanism are respectively arranged above the blanking platform and the righting mechanism and can move along the first direction;

2. The automatic EVA strip laying device according to claim 1, wherein the blanking platform comprises a front half and a rear half extending out of the cutting frame, the pressing mechanism and the cutting mechanism are both disposed on a first support beam and are located above the front half and the rear half, respectively;

3. The automatic EVA strip laying device according to claim 1, wherein the third power device comprises a third support beam and a third linear module provided thereon along a length direction thereof, the fourth power device comprises a fourth support beam and a fourth linear module provided thereon along a length direction thereof, the third support beam and the fourth support beam are each provided along a second direction;

4. The automatic EVA strip laying device according to claim 3, wherein a third guide rail and a fourth guide rail are respectively arranged on the third support beam and the fourth support beam along the length direction of the third support beam, and the third mounting plate and the fourth mounting plate are respectively connected with the third guide rail and the fourth guide rail in a sliding manner through a third sliding block and a fourth sliding block which are respectively arranged on the third mounting plate and the fourth mounting plate;

5. The automatic EVA strip laying device according to claim 1, wherein the sixth power device comprises a sixth motor and a sixth guide rail, wherein the sixth motor and the sixth guide rail are arranged on a supporting plate, the sixth guide rail is provided with a connecting frame and is in sliding connection with the connecting frame, the sensor is arranged on the connecting frame, and the sixth motor drives the connecting frame to move along the second direction through a sixth transmission assembly;

6. The automatic EVA strip laying device according to claim 2, wherein the fifth power device comprises a fifth motor, a driving pulley and a fifth slider, the driving pulley is arranged along the second direction and is powered by the fifth motor, and the hob assembly is fixed on the fifth slider and is connected with the driving pulley by the fifth slider;

7. The automatic EVA strip laying device according to claim 6, wherein a fifth guide rail is provided on the first support beam in the length direction thereof, and the fifth slider is fixedly connected with the belt of the driving pulley and slidingly connected with the fifth guide rail;

8. The automatic EVA strip laying device according to claim 1, wherein the first limiting assembly comprises a third sliding seat and a third air cylinder arranged on the third sliding seat, the third sliding seat is arranged on the first linear module and is in sliding connection with the first linear module, and the third air cylinder is vertically fixed on the third sliding seat and drives the stop block to move along the vertical direction;

9. The automatic EVA small strip laying device according to claim 1, wherein the heating unit comprises a fourth sliding seat, a fourth air cylinder, a mounting seat and a heating head, wherein the fourth air cylinder is arranged on the fourth sliding seat, the fourth air cylinder drives the mounting seat and drives the heating head to move in the vertical direction, a second guide rail is arranged on the supporting seat along the length direction of the supporting seat, and the fourth sliding seat is in sliding connection with the second guide rail and is provided with a fourth rail lock;

10. The use method of the automatic EVA small strip laying device is characterized in that the automatic EVA small strip laying device according to any one of claims 1-9 is adopted, and the method comprises the following steps: