Dispensing equipment

Abstract

The invention discloses dispensing equipment, which relates to the technical field of coating and comprises an unwinding device, a dispensing device, a drying device and a winding device, the winding device comprises a rack, a collapsible roller, a pushing mechanism, a bearing part and a first linear driving piece, the left end of the collapsible roller can be rotatably connected to the rack, the collapsible roller is used for winding a film, the first linear driving piece is arranged on the rack, and the bearing part can be connected to the rack in a left-right sliding mode; the first linear driving part can drive the bearing part to move rightwards to the position below the expansion and contraction roller, the expansion and contraction roller can contract so that a material roll on the expansion and contraction roller can fall on the bearing part, and the material pushing mechanism is arranged on the rack and used for pushing the material roll on the expansion and contraction roller from left to right so that a fork arm of a forklift can be sleeved with the material roll. According to the unwinding device in the dispensing equipment, the fork arm of the forklift can be quickly sleeved with the coated material coil, the downtime of the dispensing equipment is shortened, and the coating processing efficiency of the dispensing equipment can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of coating, in particular to a dot coating device. Background Art

[0002] The spot coating equipment is a device used to coat the surface of a film, which can apply the coating on the surface of the film in the form of dots, and after drying the coating, the coated film is rolled up. The winding device is an important part of the spot coating equipment. The winding device is mainly used to neatly roll up the film after a series of processing steps such as coating, so as to facilitate storage, transportation and subsequent further processing. The winding device includes a winding roller, which can rotate to achieve the purpose of winding the film. In the prior art, the weight of the material roll is large. When the material roll on the winding device needs to be unloaded, the operator first needs to stop the spot coating equipment and wind the rope of the crane around the material roll so that the rope of the crane can support the material roll on the winding roller. Then the operator needs to drive the forklift so that the fork arm of the forklift can be aligned with the winding roller. Then the operator needs to operate the crane, which can slowly move the material roll on the winding roller so that the material roll can be put on the fork arm of the forklift. Finally, the operator needs to remove the rope of the crane from the material roll so that the forklift can transport the material roll away to complete the unloading of the material roll. The use of the crane is relatively cumbersome. The operator needs to spend a lot of time to wind the rope of the crane around the material roll, and also needs to spend a certain amount of time to remove the rope of the crane from the material roll, which increases the unloading time of the material roll, and then increases the downtime of the dispensing equipment, so it is not conducive to improving the coating processing efficiency of the dispensing equipment. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a coating device, which is conducive to improving the coating processing efficiency of the coating device.

[0004] The dot coating device according to the embodiment of the present invention comprises an unwinding device, the unwinding device is used to unwind the film from back to front; a dot coating device, the dot coating device is arranged in front of the unwinding device, and the dot coating device is used to dot the film; a drying device, the drying device is arranged in front of the dot coating device, and the drying device is used to dry the coating on the film; a winding device, the winding device is arranged in front of the drying device; the winding device comprises a frame, an expansion and contraction roller, a pushing mechanism, a supporting part and a first linear driving member, the left end of the expansion and contraction roller is rotatably connected to the frame, and the expansion and contraction roller is used to In order to roll up the film so that the film is wound on the expansion and contraction roller to form a material roll, the first linear drive member is arranged on the frame, and the supporting part can be slidably connected to the frame along the left and right directions. The first linear drive member can drive the supporting part to move rightward to the bottom of the expansion and contraction roller, and the expansion and contraction roller can shrink so that the material roll on the expansion and contraction roller falls on the supporting part. The pushing mechanism is arranged on the frame, and the pushing mechanism is used to push the material roll on the supporting part from left to right, so that the material roll can be separated from the expansion and contraction roller and the supporting part and be put on the fork arm of the forklift.

[0005] At least the following beneficial effects are achieved: The unwinding device unwinds the uncoated roll so that the unwinding film moves from the back to the front. The spot coating device located in front of the unwinding device spots the surface of the film so that the surface of the film is dotted with dot coating. Then, the film and the dot coating on the film enter the drying device located in front of the spot coating device, and the drying device can dry the dot coating on the film. After the film comes out of the drying device, it is rolled up by the winding device to complete the coating process of the film. When it is necessary to unload the roll on the expansion and contraction roller, the operator can first drive the forklift to the winding device so that the fork arm of the forklift is aligned with the right end of the expansion and contraction roller. Then the first linear drive member drives the supporting part to move to the right so that the supporting part moves to the bottom of the expansion and contraction roller and the roll on the expansion and contraction roller. Then the expansion and contraction roller contracts so that the roll on the expansion and contraction roller falls on the supporting part, so that the supporting part can support the roll. Finally, the material pusher pushes the expansion and contraction roller and the material roll on the supporting part from left to right, so that the material roll moves to the right and is put on the fork arm of the forklift, so that the forklift can transport the material roll away to complete the unloading of the material roll. The unwinding device in the coating equipment can quickly put the coated material roll on the fork arm of the forklift, eliminating the operator's steps of operating the crane, simplifying the way the material roll falls, shortening the unloading time of the material roll, and thus reducing the downtime of the coating equipment accordingly, so it is beneficial to improve the coating processing efficiency of the coating equipment.

[0006] According to the dot coating equipment of an embodiment of the present invention, the supporting part includes a first support plate, a second support plate and a third support plate, the third support plate and the second support plate are both inclined, the third support plate and the second support plate are respectively connected to the front and rear ends of the first support plate, the angle formed by the third support plate and the second support plate is upward, and the first support plate, the second support plate and the third support plate are used to simultaneously resist the material roll.

[0007] According to the dotting equipment of an embodiment of the present invention, the supporting part also includes a first auxiliary component, a second auxiliary component and a third auxiliary component, the first auxiliary component includes a first driven belt, and the first driven belt can be rotatably connected to the first support plate, the second auxiliary component includes a second driven belt, and the second driven belt can be rotatably connected to the second support plate, the third auxiliary component includes a third driven belt, and the third driven belt can be rotatably connected to the third support plate, the first support plate, the second support plate and the third support plate are respectively abutted against the material roll at the same time through the first driven belt, the second driven belt and the third driven belt, and the first driven belt, the second driven belt and the third driven belt are all used to convey the material roll to the right.

[0008] According to the dot coating device of the embodiment of the present invention, the first auxiliary component includes a plurality of first transmission rollers, the front and rear ends of the plurality of first transmission rollers are rotatably connected to the first support plate, the first driven belt is wound around the plurality of first transmission rollers, the inner side of the first driven belt is transmission-connected to the plurality of first transmission rollers, the second auxiliary component includes a plurality of second transmission rollers, the front and rear ends of the plurality of second transmission rollers are rotatably connected to the second support plate, the second driven belt is wound around the plurality of second transmission rollers, the inner side of the second driven belt is transmission-connected to the plurality of second transmission rollers, and the third auxiliary component includes a plurality of The third transmission roller, the front and rear ends of the multiple third transmission rollers are rotatably connected to the third support plate, the third driven belt is wound around the multiple third transmission rollers, the inner side of the third driven belt is transmission-connected to the multiple third transmission rollers, the rear ends of the multiple first transmission rollers are respectively transmission-connected to the front ends of the multiple second transmission rollers, and the front ends of the multiple first transmission rollers are respectively transmission-connected to the rear ends of the multiple third transmission rollers, so that the multiple first transmission rollers, the multiple second transmission rollers and the multiple third transmission rollers can rotate synchronously, and the first driven belt, the second driven belt and the third driven belt can rotate synchronously.

[0009] According to the dot coating equipment of an embodiment of the present invention, the supporting part also includes a plurality of first universal joints and a plurality of second universal joints, the rear ends of the plurality of first transmission rollers are respectively connected to one end of the plurality of first universal joints, the other ends of the plurality of first universal joints are respectively connected to the front ends of the plurality of second transmission rollers, the front ends of the plurality of first transmission rollers are respectively connected to one end of the plurality of second universal joints, and the other ends of the plurality of second universal joints are respectively connected to the rear ends of the plurality of third transmission rollers.

[0010] According to the dispensing device of the embodiment of the present invention, an elastic layer is provided on the surface of the first driven belt, the elastic layer can be elastically deformed, and the first driven belt is against the material roll through the elastic layer.

[0011] According to the dot coating equipment of an embodiment of the present invention, the winding device also includes a supporting mechanism, which is movably connected to the frame in the front-to-back direction, and the supporting mechanism can be abutted against the right end of the expansion and contraction roller so that the supporting mechanism can support the right end of the expansion and contraction roller, and the supporting mechanism can move forward and away from the right end of the expansion and contraction roller.

[0012] According to the dot coating device of an embodiment of the present invention, it also includes a bearing, the inner ring of the bearing is connected to the right end of the expansion and contraction roller, the supporting mechanism includes a base, a supporting block and a third linear driving member, the base can be connected to the frame movably along the front-rear direction, the supporting block is arranged on the base, a supporting hole is opened on the supporting block, the opening of the supporting hole faces backward, the supporting hole is used for the bearing to enter, so that the inner wall of the supporting hole can be against the outer ring of the bearing, the third linear driving member is arranged on the frame, and the third linear driving member can drive the base to move forward so that the bearing can escape from the supporting hole.

[0013] According to the dispensing device of the embodiment of the present invention, a guiding bevel is provided at the opening of the supporting hole, and the guiding bevel can abut against the outer ring of the bearing.

[0014] The coating device according to the embodiment of the present invention further includes a preheating device, which is arranged between the unwinding device and the coating device, and is used to preheat the film.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 It is a schematic diagram of the structure of the coating device according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of the coating device in the coating equipment of an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a winding device in a coating device according to an embodiment of the present invention; Figure 4 for Figure 3 A partial enlarged view of the middle A; Figure 5 It is a side view schematic diagram of the expansion and contraction roller, the supporting part and the material roll in the dispensing device of an embodiment of the present invention; Figure 6 It is a structural schematic diagram of a winding device in a coating device according to an embodiment of the present invention in a material unloading state; Figure 7 It is a schematic diagram of the structure of the supporting part in the coating device according to an embodiment of the present invention; Figure 8 It is a schematic diagram of the internal structure of the supporting part in the coating device according to an embodiment of the present invention; Figure Number: Unwinding device 100; The dot coating device 200; the support 210; the backing roller 220; the relief roller 230; the gravure roller 240; the material box 250; Drying device 300; Winding device 400; frame 410; expansion and contraction roller 420; bearing 421; pushing mechanism 430; pushing plate 431; supporting mechanism 440; base 441; supporting block 442; supporting hole 443; supporting portion 450; first supporting plate 451; second supporting plate 452; third supporting plate 453; first auxiliary component 460; first driven belt 461; first transmission roller 462; first universal joint 463; second universal joint 464; second auxiliary component 470; second driven belt 471; second transmission roller 472; third auxiliary component 480; third driven belt 481; third transmission roller 482; Preheating device 500; offset detection and correction device 600. DETAILED DESCRIPTION

[0017] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0019] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0020] refer to Figure 1 , Figure 3 , Figure 5 and Figure 6 The coating device according to the embodiment of the present invention includes an unwinding device 100, a coating device 200, a drying device 300 and a winding device 400.

[0021] The unwinding device 100 is used to unwind the film from the back to the front. The spot coating device 200 is arranged in front of the unwinding device 100, and the spot coating device 200 is used to apply spot coating to the film. The drying device 300 is arranged in front of the spot coating device 200, and the drying device 300 is used to dry the coating on the film. The winding device 400 is arranged in front of the drying device 300. The winding device 400 includes a frame 410, an expansion and contraction roller 420, a pushing mechanism 430, a supporting portion 450 and a first linear drive member (not shown in the figure). The left end of the expansion and contraction roller 420 can be rotatably connected to the frame 410. The expansion and contraction roller 420 is used to wind up the film so that the film is wound on the expansion and contraction roller 420 to form a material roll. The first linear drive member is arranged on the frame 410. The supporting portion 450 can be slidably connected to the frame 410 in the left and right directions. The first linear drive member can drive the supporting portion 450 to move rightward to the bottom of the expansion and contraction roller 420. The expansion and contraction roller 420 can shrink so that the material roll on the expansion and contraction roller 420 falls on the supporting portion 450. The pushing mechanism 430 is arranged on the frame 410. The pushing mechanism 430 is used to push the material roll on the expansion and contraction roller 420 from left to right so that the material roll can be put on the fork arm of the forklift.

[0022] The spot coating device includes an unwinding device 100, a spot coating device 200, a drying device 300 and an unwinding device 100, which are sequentially arranged from the back to the front. The unwinding device 100 is provided with an unwinding roller capable of unwinding, and the unwinding roller is used for the uncoated material roll to be sheathed. When the unwinding roller rotates, the uncoated material roll can be unwound into a film. In an embodiment of the present invention, the drying device 300 is a drying box, which is a device that uses hot air to dry the coating on the film so that the dot coating on the film can solidify. The unwinding device 100 and the winding device 400 are both common devices in the coating field and will not be further described here.

[0023] refer to Figure 1and Figure 2 The dot coating device 200 includes a bracket 210, a back roller 220, a relief roller 230, a gravure roller 240 and a material box 250. The back roller 220, the relief roller 230 and the gravure roller 240 are all rotatably connected to the bracket 210. The material box 250 is arranged on the bracket 210. The material box 250 is used to store paint. The gravure roller 240 and the material box 250 are correspondingly arranged so that the paint in the material box 250 can be coated on the gravure roller 240. The relief roller 230 and the gravure roller 240 are correspondingly arranged so that the paint on the gravure roller 240 can be transferred to the relief roller 230. The back roller 220 is used for film winding. The gap between the back roller 220 and the relief roller 230 is used for the film to pass through, so that the relief roller 230 can contact the film and dot the film with dotted paint. Specifically, the gravure roller 240 is provided with a plurality of material storage grooves, and the relief roller 230 is provided with a plurality of convex points. The paint in the material box 250 can be applied to the gravure roller 240, so that the paint is contained in the plurality of material storage grooves. The rotating relief roller 230 cooperates with the gravure roller 240, so that the plurality of convex points on the relief roller 230 can be respectively and sequentially extended into the material storage grooves, so that the paint is attached to the plurality of convex points. Then, the plurality of convex points on the rotating relief roller 230 can be against the surface of the film, so that the paint on the convex points is transferred to the surface of the film, and then the surface of the film is dotted with a plurality of dot-shaped paints. In the coating field, the back roller 220, the relief roller 230 and the gravure roller 240 are common roller bodies, which will not be further described here.

[0024] The winding device 400 includes a frame 410, an expansion and contraction roller 420, a material pushing mechanism 430, a supporting part 450 and a first linear driving member. When the film needs to be wound up, the sleeve needs to be put on the expansion and contraction roller 420 first, and the head end of the unwound film needs to be bonded to the sleeve. Then, the expansion and contraction roller 420 rotates to wind up the coated film, and the film is wound on the sleeve to form a roll. At this time, the roll on the expansion and contraction roller 420 is a coated roll. In the embodiment of the present invention, the coating device further includes a cutting device, a bonding device and a roll radius detection device. The roll radius detection device is provided with a preset radius value. The roll radius detection device is used to detect the radius of the roll on the expansion and contraction roller 420. When the roll on the expansion and contraction roller 420 reaches the preset radius, the expansion and contraction roller 420 stops rotating, and the cutting device cuts off the film between the drying device 300 and the winding device 400. Then, the bonding device bonds the end of the film to the roll on the expansion and contraction roller 420, so that the roll on the expansion and contraction roller 420 can be unloaded smoothly later. In the embodiment of the present invention, the cutting device, the bonding device and the roll radius detection device are all common devices in the coating field, and will not be further described here.

[0025] In the embodiment of the present invention, the expansion and contraction roller 420 is a pneumatic expansion and contraction roller 420, and the diameter of the expansion and contraction roller 420 can change. When the expansion and contraction roller 420 expands, the diameter of the expansion and contraction roller 420 increases, so that the expansion and contraction roller 420 can hold the material roll tightly, and then the material roll can be firmly fixed on the expansion and contraction roller 420. When the expansion and contraction roller 420 contracts, the diameter of the expansion and contraction roller 420 decreases, the expansion and contraction roller 420 releases the material roll, and the material roll sleeved on the expansion and contraction roller 420 will fall down for a distance, and then the material roll can be removed from the expansion and contraction roller 420. The supporting part 450 can be movably arranged on the frame 410 in the left and right directions. When the material roll on the expansion and contraction roller 420 needs to be unloaded, the first linear drive member drives the supporting part 450 to move rightward, so that the supporting part 450 moves to the expansion and contraction roller 420 and the lower part of the material roll on the expansion and contraction roller 420. When the expansion and contraction roller 420 contracts, the material roll on the expansion and contraction roller 420 will fall onto the supporting portion 450, and the supporting portion 450 plays a supporting role for the material roll.

[0026] It is understood that the unwinding device 100 unwinds the uncoated roll so that the unwinded film moves from the back to the front. The dot coating device 200 located in front of the unwinding device 100 dot coats the surface of the film so that the surface of the film is dotted with dot coating. Then, the film and the dot coating on the film enter the drying device 300 located in front of the dot coating device 200, and the drying device 300 can dry the dot coating on the film. After the film comes out of the drying device 300, it is wound by the winding device 400 to complete the coating process of the film. When it is necessary to unload the roll on the expansion and contraction roller 420, the operator can first drive the forklift to the winding device 400 so that the fork arm of the forklift is aligned with the right end of the expansion and contraction roller 420. Then the first linear drive member drives the supporting portion 450 to move to the right so that the supporting portion 450 moves to the bottom of the expansion and contraction roller 420 and the roll on the expansion and contraction roller 420. Then the expansion and contraction roller 420 contracts, so that the material roll on the expansion and contraction roller 420 falls on the supporting part 450, so that the supporting part 450 can support the material roll. Finally, the pushing mechanism 430 pushes the expansion and contraction roller 420 and the material roll on the supporting part 450 from left to right, so that the material roll moves to the right and is put on the fork arm of the forklift, so that the forklift can transport the material roll away to complete the unloading of the material roll. The unwinding device 100 in the coating equipment can quickly put the coated material roll on the fork arm of the forklift, eliminating the steps for the operator to operate the crane, simplifying the way the material roll falls, shortening the unloading time of the material roll, and thus reducing the downtime of the coating equipment accordingly, so it is beneficial to improve the coating processing efficiency of the coating equipment.

[0027] It should be explained that the reference Figure 6The roll moves to the right under the push of the pushing mechanism 430. When the right end of the roll leaves the right end of the expansion and contraction roller 420, it will be wrapped around the fork arm of the forklift. When the roll moves to the right, the fork arm, the supporting part 450 and the expansion and contraction roller 420 of the forklift can support the roll at the same time, so that the pushing mechanism 430 can push the roll completely onto the fork arm of the forklift, that is, the roll is completely separated from the expansion and contraction roller 420 and completely wrapped around the fork arm of the forklift. Figure 3 In the embodiment of the present invention, the material pushing mechanism 430 includes a push plate 431 and a second linear drive member (not shown in the figure). The push plate 431 can be connected to the frame 410 in a sliding manner along the left and right directions. The second linear drive member is arranged on the frame 410. The output end of the second linear drive member is connected to the push plate 431. The second linear drive member can drive the push plate 431 to move rightward, so that the push plate 431 can push the material roll on the expansion and contraction roller 420 to move rightward and be sleeved on the fork arm of the forklift. The push plate 431 pushes the material roll on the expansion and contraction roller 420 to the rightward onto the fork arm of the forklift, and after the material roll is completely sleeved on the fork arm of the forklift, the second linear drive member drives the push plate 431 to move leftward to reset, and the first linear drive member drives the supporting part 450 to move leftward to reset. In the embodiment of the present invention, the first linear drive member and the second linear drive member can both be cylinders or hydraulic cylinders. It should be explained that, during the process of the expansion and contraction roller 420 collecting and reeling the material, the supporting portion 450 is stored in the frame 410 and is away from the expansion and contraction roller 420 and the bottom of the material roll.

[0028] refer to Figures 5 to 7The supporting part 450 includes a first support plate 451, a second support plate 452 and a third support plate 453. The third support plate 453 and the second support plate 452 are both tilted. The third support plate 453 and the second support plate 452 are respectively connected to the front and rear ends of the first support plate 451. The angle formed by the third support plate 453 and the second support plate 452 is upward. The first support plate 451, the second support plate 452 and the third support plate 453 are used to resist the material roll at the same time. It can be understood that the first support plate 451 is connected to the output end of the first linear drive member, the third support plate 453 and the second support plate 452 are both tilted, and the third support plate 453 and the second support plate 452 are respectively arranged on the front and rear ends of the first support plate 451, so that the area surrounded by the first support plate 451, the second support plate 452 and the third support plate 453 is used for the lower part of the material supply roll to extend into. When the expansion and contraction roller 420 contracts, the material roll sleeved on the expansion and contraction roller 420 will fall down for a distance, so that the material roll falls on the first support plate 451, the second support plate 452 and the third support plate 453 at the same time, so that the first support plate 451, the second support plate 452 and the third support plate 453 can be against the material roll at the same time. The first support plate 451, the second support plate 452 and the third support plate 453 can support the material roll at the same time, so that the material roll can move more smoothly in the process of the subsequent pushing mechanism 430 pushing the material roll.

[0029] As an embodiment of the present invention, the coating device further includes a plurality of guide sleeves and a plurality of guide posts, the plurality of guide posts are parallel to the left and right directions, and the plurality of guide posts are arranged on the frame 410. The plurality of guide sleeves are evenly distributed on the bottom of the first support plate 451, the second support plate 452 and the third support plate 453, and the plurality of guide sleeves are respectively sleeved on the plurality of guide posts, so that the plurality of guide sleeves can slide on the plurality of guide rods in the left and right directions respectively, thereby enabling the first support plate 451, the second support plate 452 and the third support plate 453 to slide in the left and right directions. On the other hand, the plurality of guide rods can assist the first support plate 451, the second support plate 452 and the third support plate 453 in supporting the material roll, so that the first support plate 451, the second support plate 452 and the third support plate 453 can support the material roll more stably.

[0030] refer to Figure 5 and Figure 7The supporting portion 450 also includes a first auxiliary component 460, a second auxiliary component 470 and a third auxiliary component 480. The first auxiliary component 460 includes a first driven belt 461, which is rotatably connected to the first support plate 451. The second auxiliary component 470 includes a second driven belt 471, which is rotatably connected to the second support plate 452. The third auxiliary component 480 includes a third driven belt 481, which is rotatably connected to the third support plate 453. The first driven belt 461, the second driven belt 471 and the third driven belt 481 are used to simultaneously resist the material roll, so that the material roll moving to the right can simultaneously drive the first driven belt 461, the second driven belt 471 and the third driven belt 481 to rotate, and the first driven belt 461, the second driven belt 471 and the third driven belt 481 are all used to transport the material roll to the right.

[0031] It can be understood that the first support plate 451, the second support plate 452 and the third support plate 453 are respectively pressed against the material roll through the first driven belt 461, the second driven belt 471 and the third driven belt 481. When the material roll on the expansion and contraction roller 420 needs to be unloaded, the first linear drive member drives the first support plate 451, the second support plate 452 and the third support plate 453 to move to the right, so that the first support plate 451, the second support plate 452 and the third support plate 453 move to the bottom of the expansion and contraction roller 420 and the material roll on the expansion and contraction roller 420. Then the expansion and contraction roller 420 contracts, so that the material roll on the expansion and contraction roller 420 falls on the first driven belt 461, the second driven belt 471 and the third driven belt 481. Then the pushing mechanism 430 pushes the material roll on the expansion and contraction roller 420 from left to right, so that the material roll can move from left to right on the first driven belt 461, the second driven belt 471 and the third driven belt 481. Since the material roll is against the first driven belt 461, the second driven belt 471 and the third driven belt 481 at the same time, and there is friction between the material roll and the first driven belt 461, the second driven belt 471 and the third driven belt 481, and the material roll is heavy, the material roll moving to the right can drive the first driven belt 461, the second driven belt 471 and the third driven belt 481 to rotate at the same time. After the first driven belt 461, the second driven belt 471 and the third driven belt 481 rotate driven by the material roll, the material roll and the first driven belt 461, the second driven belt 471 and the third driven belt 481 will not move relative to each other, so that the material roll will not be scratched by the first driven belt 461, the second driven belt 471 and the third driven belt 481 during the process of moving to the right, which is beneficial to ensure the yield rate of the material roll.

[0032] refer to Figure 7 and Figure 8The first auxiliary component 460 includes a plurality of first transmission rollers 462, and the front and rear ends of the plurality of first transmission rollers 462 are rotatably connected to the first support plate 451. The first driven belt 461 is wound around the plurality of first transmission rollers 462, and the inner side of the first driven belt 461 is transmission-connected to the plurality of first transmission rollers 462. The second auxiliary component 470 includes a plurality of second transmission rollers 472, and the front and rear ends of the plurality of second transmission rollers 472 are rotatably connected to the second support plate 452. The second driven belt 471 is wound around the plurality of second transmission rollers 472, and the inner side of the second driven belt 471 is transmission-connected to the plurality of second transmission rollers 472. The third auxiliary component 480 includes a plurality of third transmission rollers 482, the front and rear ends of the multiple third transmission rollers 482 are rotatably connected to the third support plate 453, the third driven belt 481 is wound around the multiple third transmission rollers 482, the inner side of the third driven belt 481 is transmission-connected to the multiple third transmission rollers 482, the rear ends of the multiple first transmission rollers 462 are transmission-connected to the front ends of the multiple second transmission rollers 472, and the front ends of the multiple first transmission rollers 462 are transmission-connected to the rear ends of the multiple third transmission rollers 482, so that the multiple first transmission rollers 462, the multiple second transmission rollers 472 and the multiple third transmission rollers 482 can rotate synchronously, and the first driven belt 461, the second driven belt 471 and the third driven belt 481 can rotate synchronously.

[0033] In the embodiment of the present invention, the second support plate 452 and the third support plate 453 are both arranged obliquely, so the second driven belt 471 on the second support plate 452 and the third driven belt 481 on the third support plate 453 are both arranged obliquely. Figure 8 The front end of the second transmission roller 472 is the end of the second transmission roller 472 close to the first transmission roller 462, and the rear end of the third transmission roller 482 is the end of the third transmission roller 482 close to the first transmission roller 462. A plurality of first transmission rollers 462 are evenly distributed on the first support plate 451 along the left-right direction, a plurality of second transmission rollers 472 are evenly distributed on the second support plate 452 along the left-right direction, and a plurality of third transmission rollers 482 are evenly distributed on the third support plate 453 along the left-right direction.

[0034] It can be understood that the inner side of the first driven belt 461 is transmission connected to the multiple first transmission rollers 462, that is, the rotating first driven belt 461 can drive the multiple first transmission rollers 462 to rotate synchronously, the inner side of the second driven belt 471 is transmission connected to the multiple second transmission rollers 472, that is, the rotating second driven belt 471 can drive the multiple second transmission rollers 472 to rotate synchronously, and the inner side of the third driven belt 481 is transmission connected to the multiple third transmission rollers 482, that is, the rotating third driven belt 481 can drive the multiple third transmission rollers 482 to rotate synchronously. Since the rear ends of the multiple first transmission rollers 462 are respectively connected to the front ends of the multiple second transmission rollers 472, and the front ends of the multiple first transmission rollers 462 are respectively connected to the rear ends of the multiple third transmission rollers 482, the multiple first transmission rollers 462, the multiple second transmission rollers 472 and the multiple third transmission rollers 482 can rotate synchronously, and the first driven belt 461, the second driven belt 471 and the third driven belt 481 can rotate synchronously.

[0035] In the embodiment of the present invention, the second support plate 452 and the third support plate 453 are both inclined, so the second driven belt 471 on the second support plate 452 and the third driven belt 481 on the third support plate 453 are both inclined. When the roll is against the first driven belt 461, the second driven belt 471 and the third driven belt 481 at the same time, the force exerted by the roll on the first driven belt 461 is the greatest, and the force exerted on the second driven belt 471 and the third driven belt 481 is relatively small. Assuming that the first driven belt 461, the second driven belt 471 and the third driven belt 481 cannot rotate synchronously, it is not difficult to understand that in the process of the pushing mechanism 430 pushing the material roll to the right, since the force exerted by the material roll on the first driven belt 461 is the largest, and the force exerted on the second driven belt 471 and the third driven belt 481 is smaller, it is easy for the material roll to be unable to drive the second driven belt 471 and the second driven belt 471 to rotate, that is, it is easy for the second driven belt 471 and the third driven belt 481 to slip, making it easy for the material roll to move relative to the second driven belt 471 and the third driven belt 481, causing the material roll to be easily scratched by the second driven belt 471 and the third driven belt 481, which is not conducive to ensuring the yield rate of the material roll. In the embodiment of the present invention, since the first driven belt 461, the second driven belt 471 and the third driven belt 481 are mutually driven and connected, the material roll moving to the right can simultaneously drive the first driven belt 461, the second driven belt 471 and the third driven belt 481 to rotate synchronously, thereby effectively preventing the second driven belt 471 and the third driven belt 481 from slipping due to the smaller force acting on the material roll, thereby preventing the material roll from being scratched by the second driven belt 471 and the third driven belt 481, which is beneficial to ensuring the yield rate of the material roll.

[0036] In the embodiment of the present invention, since the second support plate 452 and the third support plate 453 are both inclined, the plurality of second transmission rollers 472 and the plurality of third transmission rollers 482 are both inclined, and the angle formed by the second transmission roller 472 and the third transmission roller 482 is upward. As an embodiment of the present invention, the first driven belt 461 is a first synchronous belt, and the first transmission roller 462 is a first synchronous roller. The inner side of the first driven belt 461 is provided with teeth, and the outer wall of the first transmission roller 462 is also provided with teeth. The teeth on the first driven belt 461 can mesh with the teeth on the outer wall of the first transmission roller 462, so that the first driven belt 461 and the first transmission roller 462 can rotate synchronously. The second driven belt 471 and the third driven belt 481 can be the second synchronous belt and the third synchronous belt respectively, and the second transmission roller 472 and the third transmission roller 482 can be the second synchronous roller and the third synchronous roller respectively. The synchronous belt and the synchronous roller are common components, and will not be further described here.

[0037] refer to Figure 8 The supporting part 450 also includes a plurality of first universal couplings 463 and a plurality of second universal couplings 464, the rear ends of the plurality of first transmission rollers 462 are respectively connected to one end of the plurality of first universal couplings 463, the other ends of the plurality of first universal couplings 463 are respectively connected to the front ends of the plurality of second transmission rollers 472, the front ends of the plurality of first transmission rollers 462 are respectively connected to one end of the plurality of second universal couplings 464, the other ends of the plurality of second universal couplings 464 are respectively connected to the rear ends of the plurality of third transmission rollers 482. It can be understood that the first transmission roller 462 is transmission-connected to the second transmission roller 472 through the first universal coupling 463, and the first transmission roller 462 is transmission-connected to the third transmission roller 482 through the second universal coupling 464, so as to realize the synchronous rotation of the first transmission roller 462, the second transmission roller 472 and the third transmission roller 482, so as to realize the synchronous rotation of the first driven belt 461, the second driven belt 471 and the third driven belt 481. The first universal coupling 463 and the second universal coupling 464 are both common transmission parts, and will not be further described here.

[0038] As an embodiment of the present invention, an elastic layer is provided on the surface of the first driven belt 461, and the first driven belt 461 is against the material roll through the elastic layer, and the elastic layer can undergo elastic deformation. It can be understood that the first driven belt 461 is against the material roll through the elastic layer, and since the material roll is heavy, the material roll against the elastic layer can cause the elastic layer to undergo elastic deformation. The elastic layer that undergoes elastic deformation can better fit the surface of the material roll, so that the first driven belt 461 can provide more uniform support for the material roll. On the other hand, the elastic layer that undergoes elastic deformation can evenly distribute the weight of the material roll on the surface of the first driven belt 461, avoiding dents at the bottom of the material roll due to stress concentration, which is conducive to ensuring the yield rate of the material roll. As an embodiment of the present invention, the elastic layer can be a silicone layer or a rubber layer.

[0039] refer to Figure 3 and Figure 6 The winding device 400 further includes a support mechanism 440, which is movably connected to the frame 410 in the front-rear direction, and the support mechanism 440 can abut against the right end of the expansion and contraction roller 420, so that the support mechanism 440 can support the right end of the expansion and contraction roller 420, and the support mechanism 440 can move forward and away from the right end of the expansion and contraction roller 420. It can be understood that in the process of the expansion and contraction roller 420 winding the film, the support mechanism 440 can abut against the right end of the expansion and contraction roller 420, so that the support mechanism 440 can support the right end of the expansion and contraction roller 420, thereby enabling the expansion and contraction roller 420 to stably wind the film and also enable the expansion and contraction roller 420 to stably support the material roll. When it is necessary to unload the material roll on the expansion and contraction roller 420, the operator can first drive a forklift to the winding device 400, so that the fork arm of the forklift is aligned with the right end of the expansion and contraction roller 420. Then the first linear drive member drives the supporting portion 450 to move rightward, so that the supporting portion 450 moves to below the expansion and contraction roller 420 and the material roll on the expansion and contraction roller 420. Then the expansion and contraction roller 420 contracts, so that the material roll on the expansion and contraction roller 420 falls on the supporting portion 450, so that the supporting portion 450 can support the material roll. Then the supporting mechanism 440 moves forward, so that the supporting mechanism 440 is separated from the abutment with the right end of the expansion and contraction roller 420 and moves away from the expansion and contraction roller 420, so as to avoid the support mechanism 440 hindering the rightward movement of the material roll. Finally, the pushing mechanism 430 pushes the expansion and contraction roller 420 and the material roll on the supporting portion 450 from left to right, so that the material roll moves to the right and is completely covered on the fork arm of the forklift, so that the forklift can transport the material roll away to complete the unloading of the material roll. After the material roll is unloaded, the pushing mechanism is reset, the first linear driving member drives the supporting portion 450 to move leftward and reset, and the supporting mechanism 440 moves backward and reset, so that the supporting mechanism 440 is again against the right end of the expansion and contraction roller 420.

[0040] In an embodiment of the present invention, the roll radius detection device can keep the radius of the unloaded roll at a preset radius value, so that the first driven belt 461, the second driven belt 471 and the third driven belt 481 can support the roll at the same time. As an embodiment of the present invention, the second support plate 452 and the third support plate 453 can be rotatably connected to the first support plate 451, so that the angle formed by the second support plate 452 and the third support plate 453 can be adjusted according to the radius of the roll. It can be understood that the front end of the second support plate 452 can be rotatably connected to the rear end of the first support plate 451, so that the second support plate 452 can swing relative to the first support plate 451, and the rear end of the third support plate 453 can be rotatably connected to the front end of the first support plate 451, so that the third support plate 453 can swing relative to the first support plate 451. It should be explained that after the second support plate 452 and the third support plate 453 swing, the second driven belt 471 and the third driven belt 481 will swing along with the second support plate 452 and the third support plate 453 respectively, thereby making the angle formed by the second driven belt 471 and the third driven belt 481 adjustable.

[0041] The angle formed by the second support plate 452 and the third support plate 453 can be adjusted according to the radius of the unloading roll. For example, when the radius of the roll increases, the second support plate 452 and the third support plate 453 can be swung, and the second support plate 452 and the third support plate 453 move away from each other, so that the angle formed by the second support plate 452 and the third support plate 453 increases, thereby enabling the first driven belt 461, the second driven belt 471 and the third driven belt 481 to simultaneously support the material with a larger radius. For example, when the radius of the roll decreases, the second support plate 452 and the third support plate 453 can be swung, and the second support plate 452 and the third support plate 453 move closer to each other, thereby enabling the angle formed by the second support plate 452 and the third support plate 453 to decrease, thereby enabling the first driven belt 461, the second driven belt 471 and the third driven belt 481 to simultaneously support the roll with a smaller radius.

[0042] As an embodiment of the present invention, the supporting portion 450 further includes a second hinge, a third hinge, a second fixing assembly and a third fixing assembly. The second support plate 452 is connected to the first support plate 451 through the second hinge, and the second support plate 452 can be fixed to the first support plate 451 through the second fixing assembly. The third support plate 453 is connected to the first support plate 451 through the third hinge, and the third support plate 453 can be fixed to the first support plate 451 through the third fixing assembly. The second hinge and the third hinge are common rotation settings and will not be further described here. After the angle adjustment of the angle formed by the second support plate 452 and the third support plate 453 is completed, the second support plate 452 and the third support plate 453 can be fixed by the second fixing assembly and the third fixing assembly, respectively, to prevent the second support plate 452 and the third support plate 453 from swinging. The second fixing assembly and the third fixing assembly can be the second nut and the third nut respectively. The second hinge shaft and the third hinge shaft are both provided with a threaded structure. The second nut is tightened on the threaded structure on the second hinge shaft, so that the second hinge shaft cannot rotate around its own axis, thereby fixing the second support plate 452. The third nut is tightened on the threaded structure on the third hinge shaft, so that the third hinge shaft cannot rotate around its own axis, thereby fixing the third support plate 453. The second fixing assembly and the third fixing assembly can also be other structures capable of fixing the hinge shaft, which will not be further described here.

[0043] refer to Figure 3 and Figure 4 The coating device also includes a bearing 421, the inner ring of the bearing 421 is connected to the right end of the expansion and contraction roller 420, the support mechanism 440 includes a base 441, a support block 442 and a third linear drive member (not shown in the figure), the base 441 can be movably connected to the frame 410 along the front and rear directions, the support block 442 is arranged on the base 441, and a support hole 443 is opened on the support block 442, the opening of the support hole 443 faces backward, and the support hole 443 is used for the bearing 421 to enter, so that the inner wall of the support hole 443 can be against the outer ring of the bearing 421, and the third linear drive member is arranged on the frame 410, and the third linear drive member can drive the base 441 to move forward so that the bearing 421 can escape from the support hole 443. It is understandable that, in the process of the expansion and contraction roller 420 winding up the film, the bearing 421 on the right end of the expansion and contraction roller 420 is arranged in the support hole 443 on the support block 442, and the inner wall of the support hole 443 abuts against the outer ring of the bearing 421, so that the inner wall of the support hole 443 can support the bearing 421 and the right end of the expansion and contraction roller 420. When it is necessary to unload the roll on the expansion and contraction roller 420, the third linear drive member can drive the base 441 to move forward, so that the support block 442 is away from the bearing 421 and the expansion and contraction roller 420, and the bearing 421 is disengaged from the support hole 443, and at this time the base 441 and the support block 442 will not hinder the roll moving to the right.

[0044] In an embodiment of the present invention, a guide bevel is provided at the opening of the support hole 443, and the guide bevel can be abutted against the outer ring of the bearing 421. It can be understood that after the material roll is unloaded, the third linear drive member drives the base 441 to move backward. In the process of the base 441 and the support block 442 moving backward, the guide bevel can be abutted against the outer ring of the bearing 421 on the right end of the expansion and contraction roller 420. The guide bevel plays a guiding role, so that the bearing 421 can smoothly enter the support hole 443. In an embodiment of the present invention, the support mechanism 440 also includes a clamping assembly, which is arranged on the support block 442, and the clamping assembly is used to clamp the outer ring of the bearing 421 so that the outer ring of the bearing 421 can be fixed on the inner wall of the support hole 443. It is understandable that, during the process of the expansion and contraction roller 420 winding up the film, the clamping assembly on the support block 442 can clamp the outer ring of the bearing 421, so that the outer ring of the bearing 421 can be fixed on the inner wall of the support hole 443, so that the outer ring of the bearing 421 will not rotate during the rotation of the expansion and contraction roller 420. When unloading is required, the operator can loosen the outer ring of the bearing 421 by the clamping assembly, and then the third linear drive member drives the base 441 to move forward, so that the bearing 421 can be disengaged from the support hole 443. In the embodiment of the present invention, the third linear drive member can be a cylinder, which will not be further described here.

[0045] refer to Figure 1 The coating device further includes a preheating device 500, which is disposed between the unwinding device 100 and the coating device 200, and is used to preheat the film. It is understandable that the preheating device 500 can preheat the film to increase the temperature of the film, and the increase in the temperature of the film helps to improve the adhesion of the coating; on the other hand, preheating can stretch the film, effectively avoiding wrinkles in the film, and thus helping to improve the yield rate of the finished film. In an embodiment of the present invention, the preheating device 500 is a preheating box, which is a common setting in the coating field and will not be further described here.

[0046] refer to Figure 1 In an embodiment of the present invention, the coating device further includes an offset detection and correction device 600. The offset detection and correction device 600 is provided with a preset offset range. The offset detection and correction device 600 is between the winding device 400 and the drying device 300. The offset detection and correction device 600 is used to detect the offset of the film, and can drive the film to shift in the left and right directions so that the offset of the film falls within the preset offset range. The offset detection and correction device 600 can adjust the offset of the film in real time so that the film can be kept in a predetermined position, avoiding position deviation during the film winding process, which is beneficial to improving the winding quality of the film. The offset detection and correction device 600 is a common setting in the coating field and will not be further described here.

[0047] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A dot coating device, characterized in that: include: An unwinding device (100), the unwinding device (100) being used to unwind a film from back to front; a spot coating device (200), the spot coating device (200) being arranged in front of the unwinding device (100), and the spot coating device (200) being used to perform spot coating on the film; A drying device (300), the drying device (300) being arranged in front of the dot coating device (200), the drying device (300) being used to dry the coating on the film; A winding device (400), wherein the winding device (400) is arranged in front of the drying device (300); The winding device (400) comprises a frame (410), an expansion and contraction roller (420), a material pushing mechanism (430), a supporting portion (450) and a first linear driving member. The left end of the expansion and contraction roller (420) is rotatably connected to the frame (410). The expansion and contraction roller (420) is used to wind up the film so that the film is wound on the expansion and contraction roller (420) to form a material roll. The first linear driving member is arranged on the frame (410). The supporting portion (450) is slidably connected to the frame (410) in the left and right directions. The first linear drive member can drive the supporting portion (450) to move rightward to below the expanding and contracting roller (420), and the expanding and contracting roller (420) can contract so that the material roll on the expanding and contracting roller (420) falls onto the supporting portion (450). The pushing mechanism (430) is disposed on the frame (410), and the pushing mechanism (430) is used to push the material roll of the supporting portion (450) from left to right, so that the material roll can be separated from the expanding and contracting roller (420) and the supporting portion (450) and be mounted on the fork arm of the forklift.

2. The coating device according to claim 1, characterized in that: The supporting portion (450) comprises a first supporting plate (451), a second supporting plate (452) and a third supporting plate (453); the third supporting plate (453) and the second supporting plate (452) are both arranged at an inclination; the third supporting plate (453) and the second supporting plate (452) are respectively connected to the front and rear ends of the first supporting plate (451); the angle formed by the third supporting plate (453) and the second supporting plate (452) is upward; the first supporting plate (451), the second supporting plate (452) and the third supporting plate (453) are used to abut against the material roll at the same time.

3. The coating device according to claim 2, characterized in that: The supporting portion (450) further comprises a first auxiliary component (460), a second auxiliary component (470) and a third auxiliary component (480), wherein the first auxiliary component (460) comprises a first driven belt (461), wherein the first driven belt (461) is rotatably connected to the first supporting plate (451), the second auxiliary component (470) comprises a second driven belt (471), wherein the second driven belt (471) is rotatably connected to the second supporting plate (452), and the third auxiliary component (480) comprises A third driven belt (481), the third driven belt (481) is rotatably connected to the third support plate (453), the first support plate (451), the second support plate (452) and the third support plate (453) are respectively pressed against the material roll at the same time through the first driven belt (461), the second driven belt (471) and the third driven belt (481), the first driven belt (461), the second driven belt (471) and the third driven belt (481) are all used to transport the material roll to the right.

4. The coating device according to claim 3, characterized in that: The first auxiliary component (460) comprises a plurality of first transmission rollers (462), the front and rear ends of the plurality of first transmission rollers (462) are rotatably connected to the first support plate (451), the first driven belt (461) is wound around the plurality of first transmission rollers (462), the inner side of the first driven belt (461) is transmission-connected to the plurality of first transmission rollers (462), the second auxiliary component (470) comprises a plurality of second transmission rollers (472), the front and rear ends of the plurality of second transmission rollers (472) are rotatably connected to the second support plate (452), the second driven belt (471) is wound around the plurality of second transmission rollers (472), the inner side of the second driven belt (471) is transmission-connected to the plurality of second transmission rollers (472), the third auxiliary component (480) comprises a plurality of third transmission rollers (4 82), the front and rear ends of the plurality of third transmission rollers (482) are rotatably connected to the third support plate (453), the third driven belt (481) is wound around the plurality of third transmission rollers (482), the inner side of the third driven belt (481) is transmission-connected to the plurality of third transmission rollers (482), the rear ends of the plurality of first transmission rollers (462) are transmission-connected to the front ends of the plurality of second transmission rollers (472), and the front ends of the plurality of first transmission rollers (462) are transmission-connected to the rear ends of the plurality of third transmission rollers (482), so that the plurality of first transmission rollers (462), the plurality of second transmission rollers (472) and the plurality of third transmission rollers (482) can rotate synchronously, and the first driven belt (461), the second driven belt (471) and the third driven belt (481) can rotate synchronously.

5. The coating device according to claim 4, characterized in that: The supporting portion (450) further includes a plurality of first universal couplings (463) and a plurality of second universal couplings (464); the rear ends of the plurality of first transmission rollers (462) are respectively connected to one end of the plurality of first universal couplings (463); the other ends of the plurality of first universal couplings (463) are respectively connected to the front ends of the plurality of second transmission rollers (472); the front ends of the plurality of first transmission rollers (462) are respectively connected to one end of the plurality of second universal couplings (464); and the other ends of the plurality of second universal couplings (464) are respectively connected to the rear ends of the plurality of third transmission rollers (482).

6. The coating device according to claim 4, characterized in that: An elastic layer is provided on the surface of the first driven belt (461), the elastic layer is capable of elastic deformation, and the first driven belt (461) is pressed against the material roll via the elastic layer.

7. The coating device according to claim 1, characterized in that: The winding device (400) further comprises a supporting mechanism (440), wherein the supporting mechanism (440) is movably connected to the frame (410) in a front-to-rear direction, and the supporting mechanism (440) is capable of abutting against the right end of the expansion and contraction roller (420) so that the supporting mechanism (440) can support the right end of the expansion and contraction roller (420), and the supporting mechanism (440) can move forward and away from the right end of the expansion and contraction roller (420).

8. The coating device according to claim 7, characterized in that: The invention also includes a bearing (421), the inner ring of the bearing (421) is connected to the right end of the expansion and contraction roller (420), the support mechanism (440) includes a base (441), a support block (442) and a third linear drive component, the base (441) is connected to the frame (410) movably along the front-rear direction, the support block (442) is arranged on the base (441), a support hole (443) is opened on the support block (442), the opening of the support hole (443) faces backward, the support hole (443) is used for the bearing (421) to enter, so that the inner wall of the support hole (443) can be against the outer ring of the bearing (421), and the third linear drive component is arranged on the frame (410), and the third linear drive component can drive the base (441) to move forward, so that the bearing (421) can escape from the support hole (443).

9. The coating device according to claim 8, characterized in that: A guiding inclined surface is provided at the opening of the support hole (443), and the guiding inclined surface can abut against the outer ring of the bearing (421).

10. The coating device according to claim 1, characterized in that: It also comprises a preheating device (500), wherein the preheating device (500) is arranged between the unwinding device (100) and the dot coating device (200), and the preheating device (500) is used to preheat the film.

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