A dot coating device

Abstract

The present invention discloses a dot coating device, which relates to the technical field of coating. The device includes an unwinding device, a dot coating device, a drying device and a winding device. The winding device includes a frame, a telescopic roller, a pushing mechanism, a supporting part and a first linear driving member. The left end of the telescopic roller is rotatably connected to the frame. The telescopic roller is used for winding the film. The first linear driving member is arranged on the frame. The supporting part is slidably connected to the frame in the left-right direction. The first linear driving member can drive the supporting part to move rightward to the lower part of the telescopic roller. The telescopic roller can contract so that the material roll on the telescopic roller falls on the supporting part. The pushing mechanism is arranged on the frame and is used for pushing the material roll on the telescopic roller from left to right so that the material roll can be sleeved on the fork arms of a forklift. The unwinding device in this dot coating device can quickly sleeve the coated material roll on the fork arms of the forklift, reducing the downtime of the dot coating device and being beneficial to improving the coating processing efficiency of the dot coating device.

Description

Technical Field

[0001] The present invention relates to the technical field of coating, and particularly relates to a dot coating device. Background Art

[0002] A dot coating device is a device used for coating the surface of a film. It can coat the paint on the film surface in the form of dots, and after drying the paint, wind up the coated film. The winding device is an important part of the dot coating device. The winding device is mainly used to neatly wind up the film after a series of processing procedures such as coating, so as to facilitate storage, transportation, and subsequent further processing and use. The winding device includes a winding roller, and the winding roller can rotate to achieve the purpose of winding the film. In the prior art, the weight of the material roll is relatively large. When it is necessary to unload the material roll on the winding device, the operator first needs to stop the dot coating device 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 a forklift so that the fork arms of the forklift can be aligned with the winding roller. Then the operator needs to control the crane, and the crane can slowly move the material roll on the winding roller so that the material roll can be sleeved on the fork arms 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 steps of the crane are relatively cumbersome. The operator needs to spend a lot of time winding the rope of the crane around the material roll and also needs to spend a certain amount of time removing the rope of the crane from the material roll, resulting in an increase in the unloading time of the material roll, and further resulting in an increase in the downtime of the dot coating device. Therefore, it is not conducive to improving the coating processing efficiency of the dot coating device. Summary of the Invention

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

[0004] The dot coating device according to an embodiment of the present invention includes an unwinding device for unwinding a film from back to front; a dot coating device disposed in front of the unwinding device for dot coating the film; a drying device disposed in front of the dot coating device for drying the coating on the film; and a winding device disposed in front of the drying device. The winding device includes a frame, a telescopic roller, a pushing mechanism, a supporting portion, and a first linear driving member. The left end of the telescopic roller is rotatably connected to the frame, and the telescopic roller is used for winding the film so that the film is wound on the telescopic roller to form a material roll. The first linear driving member is disposed on the frame, the supporting portion is slidably connected to the frame in the left-right direction, the first linear driving member can drive the supporting portion to move rightward below the telescopic roller, and the telescopic roller can contract so that the material roll on the telescopic roller falls on the supporting portion. The pushing mechanism is disposed on the frame and is used for pushing the material roll on the supporting portion from left to right so that the material roll can be separated from the telescopic roller and the supporting portion and sleeved on the fork arms of a forklift.

[0005] It has at least the following beneficial effects:

[0006] The unwinding device unwinds the uncoated material roll, causing the unwound film to move from back to front. The dot coating device located in front of the unwinding device dot coats the surface of the film, so that dot-shaped coatings are applied to the surface of the film. Then, the film and the dot-shaped coatings on the film enter the drying device located in front of the dot coating device, and the drying device can dry the dot-shaped coatings on the film. After the film comes out of the drying device, it is wound by the winding device to complete the coating process of the film. When it is necessary to unload the material roll on the telescopic roller, the operator can first drive the forklift to move to the winding device so that the fork arms of the forklift are aligned with the right end of the telescopic roller. Then the first linear driving member drives the supporting portion to move rightward, so that the supporting portion moves below the telescopic roller and the material roll on the telescopic roller. Then the telescopic roller contracts, causing the material roll on the telescopic roller to fall on the supporting portion, so that the supporting portion can support the material roll. Finally, the pushing mechanism pushes the material roll on the telescopic roller and the supporting portion from left to right, so that the material roll moves rightward and is sleeved on the fork arms 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 this dot coating device can quickly sleeve the completed coated material roll on the fork arms of the forklift, eliminating the need for the operator to operate the crane, simplifying the way the material roll is dropped, shortening the unloading time of the material roll, and thus correspondingly reducing the downtime of the dot coating device, which is beneficial to improving the coating processing efficiency of the dot coating device.

[0007] The dot coating device according to 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 included angle formed by the third support plate and the second support plate faces upward, and the first support plate, the second support plate and the third support plate are used to simultaneously abut against the material roll.

[0008] The dot coating device according to an embodiment of the present invention, the supporting part further includes a first auxiliary component, a second auxiliary component and a third auxiliary component, the first auxiliary component includes a first driven belt, the first driven belt is rotatably connected to the first support plate, the second auxiliary component includes a second driven belt, the second driven belt is rotatably connected to the second support plate, the third auxiliary component includes a third driven belt, the third driven belt is rotatably connected to the third support plate, the first support plate, the second support plate and the third support plate respectively abut against the material roll 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.

[0009] The dot coating device according to an embodiment of the present invention, the first auxiliary component includes a plurality of first driving rollers, the front and rear ends of the plurality of first driving rollers are rotatably connected to the first support plate, the first driven belt is wound around the plurality of first driving rollers, the inner side of the first driven belt is in transmission connection with the plurality of first driving rollers, the second auxiliary component includes a plurality of second driving rollers, the front and rear ends of the plurality of second driving rollers are rotatably connected to the second support plate, the second driven belt is wound around the plurality of second driving rollers, the inner side of the second driven belt is in transmission connection with the plurality of second driving rollers, the third auxiliary component includes a plurality of third driving rollers, the front and rear ends of the plurality of third driving rollers are rotatably connected to the third support plate, the third driven belt is wound around the plurality of third driving rollers, the inner side of the third driven belt is in transmission connection with the plurality of third driving rollers, the rear ends of the plurality of first driving rollers are respectively in transmission connection with the front ends of the plurality of second driving rollers, and the front ends of the plurality of first driving rollers are respectively in transmission connection with the rear ends of the plurality of third driving rollers, so that the plurality of first driving rollers, the plurality of second driving rollers and the plurality of third driving rollers can rotate synchronously, and the first driven belt, the second driven belt and the third driven belt can rotate synchronously.

[0010] The dot coating device according to an embodiment of the present invention, the supporting part further includes a plurality of first universal couplings and a plurality of second universal couplings. The rear ends of the plurality of first driving rollers are respectively connected to one ends of the plurality of first universal couplings, and the other ends of the plurality of first universal couplings are respectively connected to the front ends of the plurality of second driving rollers. The front ends of the plurality of first driving rollers are respectively connected to one ends of the plurality of second universal couplings, and the other ends of the plurality of second universal couplings are respectively connected to the rear ends of the plurality of third driving rollers.

[0011] The dot coating device according to an embodiment of the present invention, an elastic layer is provided on the surface of the first driven belt, the elastic layer can undergo elastic deformation, and the first driven belt abuts against the material roll through the elastic layer.

[0012] The dot coating device according to an embodiment of the present invention, the winding device further includes a supporting mechanism, the supporting mechanism is movably connected to the frame in the front-rear direction, the supporting mechanism can abut 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.

[0013] The dot coating device according to an embodiment of the present invention further 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 is movably connected to the frame in the front-rear direction, the supporting block is arranged on the base, a supporting hole is formed in the supporting block, the opening of the supporting hole faces backward, and the supporting hole is used for the bearing to enter, so that the inner wall of the supporting hole can abut 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 be disengaged from the supporting hole.

[0014] The dot coating device according to an embodiment of the present invention, a guiding inclined surface is provided at the opening of the supporting hole, and the guiding inclined surface can abut against the outer ring of the bearing.

[0015] The dot coating device according to an embodiment of the present invention further includes a preheating device, the preheating device is arranged between the unwinding device and the dot coating device, and the preheating device is used for preheating the film.

[0016] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following will further illustrate the present invention with reference to the drawings and embodiments, wherein:

[0018] Figure 1Schematic diagram of the structure of the dot coating device according to an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the structure of the dot coating device in the dot coating device according to an embodiment of the present invention;

[0020] Figure 3 Schematic diagram of the structure of the winding device in the dot coating device according to an embodiment of the present invention;

[0021] Figure 4 is Figure 3 Partial enlarged view of part A in;

[0022] Figure 5 Side view schematic diagram of the expansion and contraction roller, the supporting part and the material roll in the dot coating device according to an embodiment of the present invention;

[0023] Figure 6 Schematic diagram of the structure of the winding device in the dot coating device according to an embodiment of the present invention when in the blanking state;

[0024] Figure 7 Schematic diagram of the structure of the supporting part in the dot coating device according to an embodiment of the present invention;

[0025] Figure 8 Internal structure schematic diagram of the supporting part in the dot coating device according to an embodiment of the present invention;

[0026] Reference numerals of the attached drawings:

[0027] Unwinding device 100;

[0028] Dot coating device 200; bracket 210; back roller 220; relief plate roller 230; gravure roller 240; material box 250;

[0029] Drying device 300;

[0030] 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 part 450; first support plate 451; second support plate 452; third support plate 453; first auxiliary component 460; first driven belt 461; first driving roller 462; first universal coupling 463; second universal coupling 464; second auxiliary component 470; second driven belt 471; second driving roller 472; third auxiliary component 480; third driven belt 481; third driving roller 482;

[0031] Preheating device 500; offset detection and rectification device 600. Detailed implementation manners

[0032] In the description of the present invention, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0033] In the description of the present invention, if the first and second are described only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features or implicitly specifying the sequence relationship of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0035] Reference Figure 1 、 Figure 3 、 Figure 5 and Figure 6 , according to the dot coating device of the embodiment of the present invention, it includes an unwinding device 100, a dot coating device 200, a drying device 300 and a winding device 400.

[0036] The unwinding device 100 is used for unwinding the film from back to front. The dot coating device 200 is arranged in front of the unwinding device 100, and the dot coating device 200 is used for dot coating the film. The drying device 300 is arranged in front of the dot coating device 200, and the drying device 300 is used for drying 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, a telescopic roller 420, a pushing mechanism 430, a supporting part 450 and a first linear driving member (not shown in the figure). The left end of the telescopic roller 420 is rotatably connected to the frame 410. The telescopic roller 420 is used for winding the film so that the film is wound on the telescopic roller 420 to form a material roll. The first linear driving member is arranged on the frame 410. The supporting part 450 is slidably connected to the frame 410 along the left-right direction. The first linear driving member can drive the supporting part 450 to move rightward to the lower part of the telescopic roller 420. The telescopic roller 420 can contract so that the material roll on the telescopic roller 420 falls on the supporting part 450. The pushing mechanism 430 is arranged on the frame 410, and the pushing mechanism 430 is used for pushing the material roll on the telescopic roller 420 from left to right so that the material roll can be sleeved on the fork arms of the forklift.

[0037] The dot coating device includes an unwinding device 100, a dot coating device 200, a drying device 300, and a winding device 400 that are distributed in sequence 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 sleeving an uncoated material roll. When the unwinding roller rotates, the uncoated material roll can unwind the film. In the 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-shaped 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.

[0038] Reference Figure 1 And Figure 2 , the dot coating device 200 includes a bracket 210, a back roller 220, a relief roller 230, an intaglio roller 240, and a material box 250. The back roller 220, the relief roller 230, and the intaglio roller 240 are all rotatably connected to the bracket 210. The material box 250 is arranged on the bracket 210 and is used for storing the coating. The intaglio roller 240 is arranged corresponding to the material box 250 so that the coating in the material box 250 can be coated on the intaglio roller 240. The relief roller 230 is arranged corresponding to the intaglio roller 240 so that the coating on the intaglio roller 240 can be transferred to the relief roller 230. The back roller 220 is used for the film to be wound around, and 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-shaped coatings are applied to the film. Specifically, the intaglio roller 240 is provided with a plurality of material receiving grooves, and the relief roller 230 is provided with a plurality of convex points. The coating in the material box 250 can be coated on the intaglio roller 240 so that the plurality of material receiving grooves are all filled with the coating. The rotating relief roller 230 and the intaglio roller 240 cooperate with each other so that the plurality of convex points on the relief roller 230 can respectively extend into the material receiving grooves in sequence, and the plurality of convex points are attached with the coating. Then, the plurality of convex points on the rotating relief roller 230 can abut against the surface of the film, so that the coating on the convex points is transferred to the surface of the film, and thus a plurality of dot-shaped coatings are applied to the surface of the film. In the coating field, the back roller 220, the relief roller 230, and the intaglio roller 240 are common rollers and will not be further described here.

[0039] The rewinding device 400 includes a frame 410, a telescopic roller 420, a pusher mechanism 430, a supporting part 450, and a first linear driving member. When the film needs to be rewound, the sleeve needs to be sleeved on the telescopic roller 420 first, and the leading end of the film unwound from the unwinding device is bonded to the sleeve. Then, the telescopic roller 420 rotates to rewind the coated film, and the film is wound around the sleeve to form a material roll. At this time, the material roll on the telescopic roller 420 is the material roll that has been coated. In the embodiment of the present invention, the dot coating device further includes a cutting device, a bonding device, and a material roll radius detection device. The material roll radius detection device is provided with a preset radius value. The material roll radius detection device is used to detect the radius of the material roll on the telescopic roller 420. When the radius of the material roll on the telescopic roller 420 reaches the preset radius, the telescopic roller 420 stops rotating. The cutting device cuts the film between the drying device 300 and the rewinding device 400. Then, the bonding device bonds the trailing end of the film to the material roll on the telescopic roller 420, so that the material roll on the telescopic roller 420 can be discharged smoothly later. In the embodiment of the present invention, the cutting device, the bonding device, and the material roll radius detection device are all common devices in the coating field, and will not be elaborated further here.

[0040] In the embodiment of the present invention, the telescopic roller 420 is a pneumatic telescopic roller 420, and the diameter of the telescopic roller 420 can be changed. When the telescopic roller 420 expands, the diameter of the telescopic roller 420 increases, so that the telescopic roller 420 can tighten the material roll, and further the material roll can be firmly fixed on the telescopic roller 420. When the telescopic roller 420 contracts, the diameter of the telescopic roller 420 decreases, and the telescopic roller 420 releases the material roll. The material roll sleeved on the telescopic roller 420 will drop a certain distance downward. At this time, the material roll can be removed from the telescopic roller 420. The supporting part 450 is movably arranged on the frame 410 in the left-right direction. When the material roll on the telescopic roller 420 needs to be discharged, the first linear driving member drives the supporting part 450 to move to the right, so that the supporting part 450 moves below the telescopic roller 420 and the material roll on the telescopic roller 420. When the telescopic roller 420 contracts, the material roll on the telescopic roller 420 will fall on the supporting part 450, and the supporting part 450 plays a role in supporting the material roll.

[0041] It can be understood that the unwinding device 100 unwinds the uncoated material roll, so that the unwound film moves from back to front. The dot coating device 200 located in front of the unwinding device 100 performs dot coating on the surface of the film, so that dot-shaped coatings are applied to the surface of the film. Then, the film and the dot-shaped coatings 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-shaped coatings 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 the material roll on the expansion and contraction roller 420 needs to be unloaded, the operator can first drive the forklift to move to the winding device 400 so that the fork arms of the forklift are aligned with the right end of the expansion and contraction roller 420. Then, the first linear driving member drives the supporting portion 450 to move to the right, so that the supporting portion 450 moves 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, and further enables the supporting portion 450 to support the material roll. Finally, the pushing mechanism 430 pushes the material roll on the expansion and contraction roller 420 and the supporting portion 450 from left to right, so that the material roll moves to the right and is sleeved on the fork arms of the forklift, and further enables the forklift to transport the material roll away to complete the unloading of the material roll. The unwinding device 100 in this dot coating equipment can quickly sleeve the completed coated material roll on the fork arms of the forklift, eliminating the step of the operator controlling the crane, simplifying the falling method of the material roll, shortening the unloading time of the material roll, and thus correspondingly reducing the downtime of the dot coating equipment, which is beneficial to improving the coating processing efficiency of the dot coating equipment.

[0042] It should be explained that referring to Figure 6 , the material roll moves to the right under the push of the pushing mechanism 430. When the right end of the material roll leaves the right end of the expansion and contraction roller 420, it will be sleeved on the fork arms of the forklift. During the process of the material roll moving to the right, the fork arms of the forklift, the supporting portion 450, and the expansion and contraction roller 420 can support the material roll at the same time, and further enable the pushing mechanism 430 to completely push the material roll onto the fork arms of the forklift, that is, to completely separate the material roll from the expansion and contraction roller 420 and completely sleeve it on the fork arms of the forklift. Referring to Figure 3, in the embodiment of the present invention, the pusher mechanism 430 includes a push plate 431 and a second linear drive (not shown in the figure). The push plate 431 is slidably connected to the frame 410 in the left-right direction. The second linear drive is arranged on the frame 410, and the output end of the second linear drive is connected to the push plate 431. The second linear drive can drive the push plate 431 to move to the right, so that the push plate 431 can push the coil on the expanding and contracting roller 420 to move to the right and sleeved on the fork arms of the forklift. After the push plate 431 pushes the coil on the expanding and contracting roller 420 to the right onto the fork arms of the forklift and the coil is completely sleeved on the fork arms of the forklift, the second linear drive drives the push plate 431 to move to the left to reset, and the first linear drive drives the supporting part 450 to move to the left to reset. In the embodiment of the present invention, both the first linear drive and the second linear drive can be cylinders or hydraulic cylinders. It should be noted that during the process of the expanding and contracting roller 420 for winding and unwinding, the supporting part 450 is received into the frame 410 and away from the lower part of the expanding and contracting roller 420 and the coil.

[0043] Reference Figures 5 to 7 , the supporting part 450 includes a first support plate 451, a second support plate 452 and a third support plate 453. Both the third support plate 453 and the second support plate 452 are inclined. 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 included angle formed by the third support plate 453 and the second support plate 452 faces upward. The first support plate 451, the second support plate 452 and the third support plate 453 are used to simultaneously abut against the coil. It can be understood that the first support plate 451 is connected to the output end of the first linear drive. Both the third support plate 453 and the second support plate 452 are inclined, and the third support plate 453 and the second support plate 452 are respectively arranged at 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 for the lower part of the coil to extend into. When the expanding and contracting roller 420 contracts, the coil sleeved on the expanding and contracting roller 420 will drop downward by a certain distance, so that the coil falls on the first support plate 451, the second support plate 452 and the third support plate 453 at the same time, and then the first support plate 451, the second support plate 452 and the third support plate 453 can simultaneously abut against the coil. The first support plate 451, the second support plate 452 and the third support plate 453 can simultaneously support the coil, so that during the process of the subsequent pusher mechanism 430 pushing the coil, the coil can move more smoothly.

[0044] As an embodiment of the present invention, the dot coating device further includes a plurality of guide sleeves and a plurality of guide posts. The plurality of guide posts are all parallel to the left-right direction, and the plurality of guide posts are all arranged on the frame 410. The plurality of guide sleeves are evenly distributed on the bottoms of the first support plate 451, the second support plate 452, and the third support plate 453. The plurality of guide sleeves are respectively sleeved on the plurality of guide posts, so that the plurality of guide sleeves can slide along the left-right direction on the plurality of guide rods, and further the first support plate 451, the second support plate 452, and the third support plate 453 can slide along the left-right direction. 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 to support 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.

[0045] Reference Figure 5 And Figure 7 Moreover, the supporting portion 450 further includes a first auxiliary assembly 460, a second auxiliary assembly 470, and a third auxiliary assembly 480. The first auxiliary assembly 460 includes a first driven belt 461, and the first driven belt 461 is rotatably connected to the first support plate 451. The second auxiliary assembly 470 includes a second driven belt 471, and the second driven belt 471 is rotatably connected to the second support plate 452. The third auxiliary assembly 480 includes a third driven belt 481, and the third driven belt 481 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 abut against 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. The first driven belt 461, the second driven belt 471, and the third driven belt 481 are all used to convey the material roll to the right.

[0046] It can be understood that the first support plate 451, the second support plate 452, and the third support plate 453 are respectively abutted against the material roll simultaneously through the first driven belt 461, the second driven belt 471, and the third driven belt 481. When it is necessary to unload the material roll on the expanding and contracting roller 420, the first linear driving 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 lower part of the expanding and contracting roller 420 and the material roll on the expanding and contracting roller 420. Then the expanding and contracting roller 420 contracts, so that the material roll on the expanding and contracting roller 420 falls on the first driven belt 461, the second driven belt 471, and the third driven belt 481. Then the material pushing mechanism 430 pushes the material roll on the expanding and contracting 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 simultaneously abutted against the first driven belt 461, the second driven belt 471, and the third driven belt 481, 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 relatively 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 simultaneously. After the first driven belt 461, the second driven belt 471, and the third driven belt 481 rotate driven by the material roll, there will be no relative movement between the material roll and the first driven belt 461, the second driven belt 471, and the third driven belt 481, 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 ensuring the qualified rate of the material roll.

[0047] Reference Figure 7 and Figure 8, the first auxiliary component 460 includes a plurality of first driving rollers 462. The front and rear ends of the plurality of first driving rollers 462 are rotatably connected to the first support plate 451. The first driven belt 461 is wound around the plurality of first driving rollers 462, and the inner side of the first driven belt 461 is in driving connection with the plurality of first driving rollers 462. The second auxiliary component 470 includes a plurality of second driving rollers 472. The front and rear ends of the plurality of second driving rollers 472 are rotatably connected to the second support plate 452. The second driven belt 471 is wound around the plurality of second driving rollers 472, and the inner side of the second driven belt 471 is in driving connection with the plurality of second driving rollers 472. The third auxiliary component 480 includes a plurality of third driving rollers 482. The front and rear ends of the plurality of third driving rollers 482 are rotatably connected to the third support plate 453. The third driven belt 481 is wound around the plurality of third driving rollers 482, and the inner side of the third driven belt 481 is in driving connection with the plurality of third driving rollers 482. The rear ends of the plurality of first driving rollers 462 are respectively in driving connection with the front ends of the plurality of second driving rollers 472, and the front ends of the plurality of first driving rollers 462 are respectively in driving connection with the rear ends of the plurality of third driving rollers 482, so that the plurality of first driving rollers 462, the plurality of second driving rollers 472 and the plurality of third driving 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.

[0048] 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. Refer to Figure 8 , the front end of the second driving roller 472 is the end of the second driving roller 472 close to the first driving roller 462, and the rear end of the third driving roller 482 is the end of the third driving roller 482 close to the first driving roller 462. The plurality of first driving rollers 462 are evenly distributed on the first support plate 451 in the left-right direction, the plurality of second driving rollers 472 are evenly distributed on the second support plate 452 in the left-right direction, and the plurality of third driving rollers 482 are evenly distributed on the third support plate 453 in the left-right direction.

[0049] It can be understood that the inner side of the first driven belt 461 is drivingly connected to multiple first driving rollers 462, that is, the rotating first driven belt 461 can drive multiple first driving rollers 462 to rotate synchronously. The inner side of the second driven belt 471 is drivingly connected to multiple second driving rollers 472, that is, the rotating second driven belt 471 can drive multiple second driving rollers 472 to rotate synchronously. The inner side of the third driven belt 481 is drivingly connected to multiple third driving rollers 482, that is, the rotating third driven belt 481 can drive multiple third driving rollers 482 to rotate synchronously. Since the rear ends of multiple first driving rollers 462 are respectively drivingly connected to the front ends of multiple second driving rollers 472, and the front ends of multiple first driving rollers 462 are respectively drivingly connected to the rear ends of multiple third driving rollers 482, multiple first driving rollers 462, multiple second driving rollers 472 and multiple third driving 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.

[0050] In the embodiment of the present invention, both the second support plate 452 and the third support plate 453 are 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 coil is simultaneously pressed against the first driven belt 461, the second driven belt 471 and the third driven belt 481, the acting force of the coil on the first driven belt 461 is the largest, and the acting forces on the second driven belt 471 and the third driven belt 481 are smaller. 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 during the process of the pusher mechanism 430 pushing the coil to the right, since the acting force of the coil on the first driven belt 461 is the largest and the acting forces on the second driven belt 471 and the third driven belt 481 are smaller, it is easy to cause the coil to be unable to drive the second driven belt 471 and the second driven belt 471 to rotate, that is, it is easy to cause the second driven belt 471 and the third driven belt 481 to slip, resulting in the coil being 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 coil. 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 drivingly connected to each other, the coil moving to the right can drive the first driven belt 461, the second driven belt 471 and the third driven belt 481 to rotate synchronously at the same time, effectively avoiding the second driven belt 471 and the third driven belt 481 from slipping due to the smaller acting force of the coil, and further avoiding the coil from being scratched by the second driven belt 471 and the third driven belt 481, which is conducive to ensuring the yield rate of the coil.

[0051] In the embodiment of the present invention, since both the second support plate 452 and the third support plate 453 are inclined, a plurality of second driving rollers 472 and a plurality of third driving rollers 482 are both inclined, and the included angle formed by the second driving rollers 472 and the third driving rollers 482 faces upward. As an embodiment of the present invention, the first driven belt 461 is a first synchronous belt, and the first driving roller 462 is a first synchronous roller. Teeth are provided on the inner side of the first driven belt 461, and teeth are also provided on the outer wall of the first driving roller 462. The teeth on the first driven belt 461 can mesh with the teeth on the outer wall of the first driving roller 462, so that the first driven belt 461 and the first driving roller 462 can rotate synchronously. The second driven belt 471 and the third driven belt 481 can be a second synchronous belt and a third synchronous belt respectively, and the second driving roller 472 and the third driving roller 482 can be a second synchronous roller and a third synchronous roller respectively. Synchronous belts and synchronous rollers are common components and will not be elaborated further here.

[0052] Reference Figure 8 , 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 a plurality of first driving rollers 462 are respectively connected to one ends of a plurality of first universal couplings 463, and the other ends of a plurality of first universal couplings 463 are respectively connected to the front ends of a plurality of second driving rollers 472. The front ends of a plurality of first driving rollers 462 are respectively connected to one ends of a plurality of second universal couplings 464, and the other ends of a plurality of second universal couplings 464 are respectively connected to the rear ends of a plurality of third driving rollers 482. It can be understood that the first driving roller 462 is in transmission connection with the second driving roller 472 through the first universal coupling 463, and the first driving roller 462 is in transmission connection with the third driving roller 482 through the second universal coupling 464, so as to realize the synchronous rotation of the first driving roller 462, the second driving roller 472 and the third driving roller 482, and 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 elaborated further here.

[0053] 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 abuts 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 abuts against the material roll through the elastic layer. Since the material roll is heavy, the material roll pressing 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 disperse the weight of the material roll on the surface of the first driven belt 461, avoiding indentations on the bottom of the material roll due to stress concentration, which is beneficial to ensuring the yield rate of the material roll. As an embodiment of the present invention, the elastic layer can be a silica gel layer or a rubber layer.

[0054] Reference Figure 3 and Figure 6 Moreover, the rewinding device 400 further includes a support mechanism 440 which is movably connected to the frame 410 in the front-back direction. The support mechanism 440 can abut against the right end of the expanding and contracting roller 420 so that the support mechanism 440 can support the right end of the expanding and contracting roller 420, and the support mechanism 440 can move forward and away from the right end of the expanding and contracting roller 420. It can be understood that during the process of the expanding and contracting roller 420 rewinding the film, the support mechanism 440 can abut against the right end of the expanding and contracting roller 420, enabling the support mechanism 440 to support the right end of the expanding and contracting roller 420, thereby enabling the expanding and contracting roller 420 to stably rewind the film and enabling the expanding and contracting roller 420 to stably support the coil. When it is necessary to unload the coil on the expanding and contracting roller 420, the operator can first drive the forklift to move to the rewinding device 400 so that the fork arms of the forklift are aligned with the right end of the expanding and contracting roller 420. Then the first linear driving member drives the supporting portion 450 to move to the right, so that the supporting portion 450 moves below the expanding and contracting roller 420 and the coil on the expanding and contracting roller 420. Then the expanding and contracting roller 420 contracts, causing the coil on the expanding and contracting roller 420 to fall onto the supporting portion 450, thereby enabling the supporting portion 450 to support the coil. Then the support mechanism 440 moves forward, causing the support mechanism 440 to disengage from the abutment with the right end of the expanding and contracting roller 420 and move away from the expanding and contracting roller 420, preventing the support mechanism 440 from obstructing the rightward movement of the coil. Finally, the pusher mechanism 430 pushes the coil on the expanding and contracting roller 420 and the supporting portion 450 from left to right, causing the coil to move to the right and completely fit onto the fork arms of the forklift, thereby enabling the forklift to transport the coil away to complete the unloading of the coil. After the coil unloading is completed, the pushing mechanism resets, the first linear driving member drives the supporting portion 450 to move to the left to reset, and the support mechanism 440 moves backward to reset, causing the support mechanism 440 to abut against the right end of the expanding and contracting roller 420 again.

[0055] In an embodiment of the present invention, the coil radius detection device can keep the radius of the discharged coil 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 coil simultaneously. As an embodiment of the present invention, both the second support plate 452 and the third support plate 453 are 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 coil. It can be understood that the front end of the second support plate 452 is 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. The rear end of the third support plate 453 is 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, so that the angle formed by the second driven belt 471 and the third driven belt 481 is adjustable.

[0056] The angle formed by the second support plate 452 and the third support plate 453 can be adjusted according to the radius of the discharged coil. For example, when the radius of the coil 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, and further the first driven belt 461, the second driven belt 471, and the third driven belt 481 can support a coil with a larger radius simultaneously. For example, when the radius of the coil 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, so that the angle formed by the second support plate 452 and the third support plate 453 decreases, and further the first driven belt 461, the second driven belt 471, and the third driven belt 481 can support a coil with a smaller radius simultaneously.

[0057] As an embodiment of the present invention, the supporting portion 450 further includes a second hinge shaft, a third hinge shaft, a second fixing component, and a third fixing component. The second supporting plate 452 is connected to the first supporting plate 451 through the second hinge shaft, and the second supporting plate 452 can be fixed to the first supporting plate 451 through the second fixing component. The third supporting plate 453 is connected to the first supporting plate 451 through the third hinge shaft, and the third supporting plate 453 can be fixed to the first supporting plate 451 through the third fixing component. The second hinge shaft and the third hinge shaft are commonly rotationally arranged, and will not be further described here. After the angle adjustment of the included angle between the second supporting plate 452 and the third supporting plate 453 is completed, the second supporting plate 452 and the third supporting plate 453 can be fixed through the second fixing component and the third fixing component respectively to prevent the second supporting plate 452 and the third supporting plate 453 from swinging. The second fixing component and the third fixing component can be a second nut and a third nut respectively. Threaded structures are provided on both the second hinge shaft and the third hinge shaft. The second nut is tightened on the threaded structure of the second hinge shaft, so that the second hinge shaft cannot rotate around its own axis, and thus the second supporting plate 452 is fixed. The third nut is tightened on the threaded structure of the third hinge shaft, so that the third hinge shaft cannot rotate around its own axis, and thus the third supporting plate 453 is fixed. The second fixing component and the third fixing component can also be other structures capable of fixing the hinge shaft, which will not be further described here.

[0058] Reference Figure 3 and Figure 4 As shown in FIGS. 4 and 5, the dot coating device further 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 driving member (not shown in the figure). The base 441 is movably connected to the frame 410 in the front-rear direction. The support block 442 is provided on the base 441. A support hole 443 is formed in 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 abut against the outer ring of the bearing 421. The third linear driving member is provided on the frame 410. The third linear driving member can drive the base 441 to move forward, so that the bearing 421 is disengaged from the support hole 443. It can be understood that during the process of the expansion and contraction roller 420 winding the film, the bearing 421 at 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 the material roll on the expansion and contraction roller 420 needs to be unloaded, the third linear driving member can drive the base 441 to move forward, so that the support block 442 moves away from the bearing 421 and the expansion and contraction roller 420, and the bearing 421 is disengaged from the support hole 443. At this time, the base 441 and the support block 442 will not hinder the rightward movement of the material roll.

[0059] In an embodiment of the present invention, a guiding inclined surface is provided at the opening of the supporting hole 443, and the guiding inclined surface can abut against the outer ring of the bearing 421. It can be understood that after the unwinding of the material roll is completed, the third linear driving member drives the base 441 to move backward. During the backward movement of the base 441 and the supporting block 442, the guiding inclined surface can abut against the outer ring of the bearing 421 on the right end of the expansion and contraction roller 420. The guiding inclined surface plays a guiding role, enabling the bearing 421 to smoothly enter the supporting hole 443. In an embodiment of the present invention, the supporting mechanism 440 further includes a clamping assembly, which is arranged on the supporting block 442 and is used for clamping 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 supporting hole 443. It can be understood that during the process of the expansion and contraction roller 420 winding the film, the clamping assembly on the supporting 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 supporting hole 443, ensuring that the outer ring of the bearing 421 does not rotate during the rotation of the expansion and contraction roller 420. When it is necessary to unload the material, the operator can loosen the outer ring of the bearing 421 by the clamping assembly, and then the third linear driving member drives the base 441 to move forward, so that the bearing 421 can be disengaged from the supporting hole 443. In an embodiment of the present invention, the third linear driving member can be a cylinder, which will not be further elaborated here.

[0060] Reference Figure 1 As shown in [reference number], the dot coating device further includes a preheating device 500, which is arranged between the unwinding device 100 and the dot coating device 200, and the preheating device 500 is used for preheating the film. It can be understood that the preheating device 500 can preheat the film to increase the temperature of the film. The increase in the temperature of the film helps to improve the coating adhesion. On the other hand, preheating can stretch the film, effectively avoiding the occurrence of wrinkles in the film, which is conducive to improving 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 elaborated here.

[0061] Reference Figure 1 As shown in [reference number], in an embodiment of the present invention, the dot coating device further includes an offset detection and correction device 600, which has a preset offset range. The offset detection and correction device 600 is arranged between the winding device 400 and the drying device 300. The offset detection and correction device 600 is used for detecting the offset amount of the film and can drive the film to displace in the left-right direction so that the offset amount of the film falls within the preset offset range. The offset detection and correction device 600 can adjust the offset amount of the film in real time, enabling the film to maintain a predetermined position, avoiding position deviation during the winding process of the film, and being conducive 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 elaborated here.

[0062] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0063] Certainly, the present invention is not limited to the above-described embodiments. Those skilled in the art can also make equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within 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 expansion and contraction roller (420), and the expansion and contraction roller (420) can contract so that the material roll on the expansion and contraction roller (420) falls onto the supporting portion (450). The material pushing mechanism (430) is arranged on the frame (410), and the material pushing mechanism (430) is used to push the material roll on the supporting portion (450) from left to right, so that the material roll can be separated from the expansion and contraction roller (420) and the supporting portion (450) and be sleeved on the fork arm of the forklift; 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 obliquely; 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; 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) being rotatably connected to the third support plate (453), the first support plate (451), the second support plate (452) and the third support plate (453) being 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) being used to transport the material roll to the right; 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.

2. The coating device according to claim 1, 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).

3. The coating device according to claim 1, 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.

4. 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).

5. The coating device according to claim 4, 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).

6. The coating device according to claim 5, 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).

7. 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.

Images