Guide roller for coating and coating equipment

Abstract

The utility model relates to the technical field of coating equipment, and discloses a guide roller for coating and the coating equipment, the guide roller for coating comprises a guide roller assembly, and the guide roller assembly is composed of an arc middle-low roller and adjusting mechanisms on the two sides. Through the arrangement of the arc middle-low roller, the spherical block, the moving block and the screw rod, the screw rod is in threaded sleeve connection with the moving block, when the screw rod rotates, the moving block is driven to move along the interior of the fixed block, the moving block drives the spherical block to move through the moving block, and then the spherical block drives the connecting rod to move; at the moment, the connecting rod moves along the interior of the arc middle-low roller, meanwhile, the arc middle-low roller is driven by the connecting rod to be in an inclined state, and therefore the tension borne by the pyrography film can be adjusted, due to the design of the arc middle-low roller, the good guiding effect on the pyrography film can be achieved, manual adjustment and automatic adjustment are combined, and the production efficiency is improved. Therefore, the effect of preventing the pyrograph film from generating corrugated edges is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating equipment, and more specifically, to a coating guide roller and coating equipment. Background Art

[0002] After several years of development, the market for digital inkjet printing film is maturing. Printing on heat transfer film often requires a coating device. The standard width for digital inkjet printing heat transfer film is 600mm. Currently, ordinary equipment primarily produces two 1200mm-wide sheets, which are then slit. Increasing the width to 1800mm or three sheets would increase efficiency by 50%. However, increasing the width to 1800mm presents a serious problem of poor quality stability. Due to the increased width of the film, the coating machine faces a significant challenge in flattening and coating the film. Domestically produced PET film exhibits thickness deviations, which are particularly pronounced when the width is large. After 5,000 to 6,000 meters of reeling, the roll diameter exhibits a noticeable discrepancy. Unwinding the film during production results in a ruffled edge, with one side tight and the other loose. This ruffled edge can easily lead to uneven coating or missed coating, reducing product yields, necessitating improvements. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a coating guide roller and a coating device, which have the advantage of preventing ruffles from occurring on the heat transfer film.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a guide roller for coating, comprising a guide roller assembly.

[0005] The guide roller assembly consists of an arc-shaped middle-low roller and adjustment mechanisms on both sides. The outer surface of the arc-shaped middle-low roller is formed with straight sections at both ends, and the middle of the arc-shaped middle-low roller is formed with an arc-shaped middle-low section.

[0006] An adjustment mechanism, the adjustment mechanism being arranged inside the front and rear ends of the arc low roller;

[0007] In which, the adjustment mechanism includes a connecting rod, and there are two connecting rods. The outer surfaces of the two connecting rods are respectively movably connected to the internal front and rear ends of the arc middle and low rollers, and the opposite ends of the two connecting rods are fixedly installed with spherical blocks. The outer surface of the spherical block is movably connected to the movable block, and the outer surface of the movable block is fixedly installed with a moving block. The outer surface of the moving block is movably connected to the fixed block, and the internal thread of the moving block is connected with a screw. The outer surfaces of both ends of the screw are movably connected to the internal of the fixed block, and both ends of the screw are fixedly installed with a twisting block.

[0008] A coating device for coating comprises a bracket, the interior of the bracket is fixedly connected to a guide roller assembly, and a base is fixedly installed on the bottom end of the bracket.

[0009] As a preferred technical solution of the present invention, a reeling roller and a reeling roller are movably installed on the left and right sides of the interior of the bracket respectively.

[0010] As a preferred technical solution of the present invention, the bracket is internally movably sleeved with a first traction roller, the outer surface of the first traction roller is movably connected to a second traction roller, and both ends of the second traction roller are movably sleeved with the bracket.

[0011] As a preferred technical solution of the present invention, an ink cartridge is fixedly installed on the right side of the bracket, and a coating roller is movably connected to the top of the ink cartridge. Both ends of the coating roller are movably connected to the inside of the bracket.

[0012] As a preferred technical solution of the present invention, a drying box is fixedly installed on the top of the bracket, and a heating wire is fixedly installed inside the drying box.

[0013] As a preferred technical solution of the present invention, guide rollers are fixedly installed inside the bracket and the drying box.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model is provided with an arc middle and low roller, a spherical block, a moving block and a screw. Since the screw is threadedly sleeved with the moving block, when the screw rotates, it will drive the moving block to move along the inside of the fixed block. At this time, the moving block will drive the spherical block to move through the movable block, and then the spherical block will drive the connecting rod to move. At this time, the connecting rod will move along the inside of the arc middle and low roller. At the same time, the arc middle and low roller will become an inclined state driven by the connecting rod, so that the tension of the heat transfer film can be adjusted. In addition, due to the design of the arc middle and low roller, it will play a good guiding role for the heat transfer film, so as to achieve the effect of automatically adjusting the ruffles, thereby realizing the combination of manual adjustment and automatic adjustment to achieve the effect of preventing the heat transfer film from having ruffles.

[0016] 2. The utility model is provided with a first traction roller, a second traction roller, a coating roller and a guide roller. Due to the design of the guide rollers, the heat transfer film can be guided. Due to the design of the first traction roller and the second traction roller, the heat transfer film can be pulled. Due to the design of the heating wire, the heat transfer film can be dried. Due to the design of the ink cartridge and the coating roller, when the coating roller rotates, the ink inside the ink cartridge can be dipped and the heat transfer film can be printed at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the heating wire of the utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the fixed block of the utility model;

[0022] Figure 6 This is a schematic cross-sectional view of the guide roller assembly of the present invention;

[0023] Figure 7 This is a structural diagram of the arc low roller of the utility model;

[0024] Figure 8 It is a structural diagram of an angle adjustment device in the prior art.

[0025] In the figure: 1. Arc middle and low roller; 2. Connecting rod; 3. Spherical block; 4. Movable block; 5. Moving block; 6. Fixed block; 7. Screw; 8. Twisting block; 9. Bracket; 10. Base; 11. Guide roller assembly; 12. Unwinding roller; 13. Winding roller; 14. Guide roller; 15. Heating wire; 16. First traction roller; 17. Second traction roller; 18. Drying box; 19. Ink cartridge; 20. Coating roller. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figures 1 to 6 As shown, the utility model provides a coating guide roller, including a guide roller assembly 11:

[0028] The guide roller assembly 11 is composed of an arc-shaped middle-low roller 1 and adjustment mechanisms on both sides. The outer surface of the arc-shaped middle-low roller 1 has straight sections at both ends, and an arc-shaped middle-low section is formed in the middle of the arc-shaped middle-low roller 1.

[0029] An adjustment mechanism is provided inside the front and rear ends of the arc low roller 1;

[0030] Among them, the adjustment mechanism includes a connecting rod 2, the number of the connecting rods 2 is two, the outer surfaces of the two connecting rods 2 are respectively movably connected to the internal front and rear ends of the arc middle and low roller 1, and the opposite ends of the two connecting rods 2 are fixedly installed with a spherical block 3, the outer surface of the spherical block 3 is movably connected to the movable block 4, the outer surface of the movable block 4 is fixedly installed with a moving block 5, the outer surface of the moving block 5 is movably connected to the fixed block 6, the internal thread of the moving block 5 is connected with a screw 7, the outer surfaces of both ends of the screw 7 are movably connected to the internal fixed block 6, and the two ends of the screw 7 are fixedly installed with a twisting block 8.

[0031] When ruffles appear on the heat transfer film, the operator drives the screw 7 to rotate by twisting the twisting block 8. Since the screw 7 is threadedly connected to the moving block 5 and due to the internal limit of the fixed block 6, the screw 7 will drive the moving block 5 to move along the inside of the fixed block 6 during rotation. At this time, the moving block 5 will drive the spherical block 3 to move through the movable block 4. Then the spherical block 3 will make the arc middle and low roller 1 as a whole become tilted through the connecting rod 2. At the same time, the connecting rod 2 will move along the inside of the arc middle and low roller 1. At this time, the arc middle and low roller 1 will adjust the tension on the heat transfer film during the tilting process, and due to the design of the middle section of the arc middle and low roller 1, it will be able to play a good guiding role on the heat transfer film, thereby achieving a good automatic follow-up adjustment effect, which can effectively prevent the heat transfer film from having ruffles.

[0032] A coating device for coating includes a bracket 9. The interior of the bracket 9 is fixedly connected to a guide roller assembly 11. The bottom end of the bracket 9 is fixedly mounted with a base 10.

[0033] Due to the design of the bracket 9, it will be able to provide good support for the objects located inside it, and due to the design of the base 10, the entire bracket 9 can be placed stably on the ground.

[0034] A reeling roller 12 and a reeling roller 13 are movably mounted on the left and right sides of the bracket 9 .

[0035] Due to the design of the unwinding roller 12 and the winding roller 13 , the heat transfer film can be unwound when the unwinding roller 12 rotates, and the heat transfer film can be wound up when the winding roller 13 rotates.

[0036] The first traction roller 16 is movably sleeved inside the bracket 9 , and the second traction roller 17 is movably connected to the outer surface of the first traction roller 16 . Both ends of the second traction roller 17 are movably sleeved inside the bracket 9 .

[0037] Due to the design of the first traction roller 16 and the second traction roller 17, a good traction effect can be exerted on the heat transfer film.

[0038] Among them, an ink cartridge 19 is fixedly installed on the right side of the bracket 9, and a coating roller 20 is movably connected to the top of the ink cartridge 19. Both ends of the coating roller 20 are movably connected to the inside of the bracket 9.

[0039] When the heat transfer film is in motion, it will drive the coating roller 20 to rotate. At this time, the coating roller 20 will dip the ink inside the ink cartridge 19 during rotation and print on the heat transfer film at the same time.

[0040] A drying box 18 is fixedly installed on the top of the bracket 9 , and a heating wire 15 is fixedly installed inside the drying box 18 .

[0041] When the heat transfer film enters the drying box 18 , the heating wire 15 dries the heat transfer film.

[0042] The bracket 9 and the drying box 18 are both fixedly provided with guide rollers 14 .

[0043] Due to the design of the guide roller 14, it can play a good guiding role on the heat transfer film.

[0044] In the existing coating machine, due to the problem of wide film ruffles, the degree of wrinkling of each roll of film varies. Therefore, in the film passing path of the machine, an angle adjustment device must be set at each turning point. The angle adjustment device is manually operated to adjust the film to be flat. The left and right angle adjustment devices of each guide roller are respectively set to horizontal adjustment and vertical adjustment, and the directions are different. Figure 8 shown.

[0045] Although the ruffle problem of wide film can be solved by Figure 8 However, the unwinding diameter and the degree of flounce constantly change during production, and manual adjustment methods cannot fully address the need for automatic follow-up adjustments. To address this issue, we tested various guide roller shapes in the coating machine, including mid-high rollers, flat rollers, and mid-low rollers. We found that the mid-low rollers have the ability to automatically adjust the flounces. Different mid-low curves also have a significant effect on the mid-low roller's mid-low size. During the various mid-low size tests, the mid-low size ranged from 0.3mm to 5mm, and the mid-low amplitude ranged from 500mm, 800mm, 1000mm, 1200mm, 1500mm, and 1800mm. V-shaped, arc-shaped, and parabolic curves were used. Ultimately, a mid-low size of 3mm and a 1500mm width arc-shaped mid-low roller with an arc radius of R = 93750mm were selected.

[0046] That is to say, in the coating device, as a preferred technical solution, as Figure 7As shown, the arc-shaped low roller 1 has a low dimension of 3mm, a width of 1500mm, and an arc radius of R = 93750mm. The overall length of the arc-shaped low roller 1 is 1850mm. By setting the arc-shaped low roller 1, the effect of the ruffle can be automatically adjusted within a certain range, thereby achieving coordination between manual and automatic adjustment within a certain range and ensuring production stability.

[0047] The working principle and use process of this utility model:

[0048] When the operator needs to print on the heat stamping film, the operator starts the winding roller 13, and the winding roller 13 will wind the heat stamping film. During this process, the heat stamping film will pass between the first traction roller 16 and the second traction roller 17. Due to the design of the first traction roller 16 and the second traction roller 17, the heat stamping film will have a good traction effect. At the same time, the heat stamping film will be guided by several guide rollers 14, so that the heat stamping film can always remain in a taut state and smoothly enter the interior of the drying box 18. Due to the design of the heating wire 15, the heat stamping film inside the drying box 18 can be dried. Due to the design of the ink cartridge 19 and the coating roller 20, when the heat stamping film is moving, it will contact the outer surface of the coating roller 20. At this time, the coating roller 20 will rotate inside the bracket 9. During this process, the surface of the coating roller 20 will dip the ink inside the ink cartridge 19 and print on the heat stamping film.

[0049] At the same time, the heat transfer film will drive several arc middle and low rollers 1 to rotate with the movable socket joint with the connecting rod 2 as the axis. When the operator finds that the heat transfer film has ruffles during the winding process, the operator twists the twisting block 8. At this time, the screw 7 will rotate under the drive of the twisting block 8. Since the outer surface of the screw 7 is socketed with the internal thread of the moving block 5, when the screw 7 rotates, it will drive the moving block 5 to move. Due to the internal limit of the fixed block 6, the moving block 5 will move along the inside of the fixed block 6 under the drive of the screw 7. At the same time, the movable block 5 The movable block 4 will move under the drive of the moving block 5. At this time, the movable block 4 will drive the spherical block 3 to move. At this time, the spherical block 3 will make the arc middle and low roller 1 tilted as a whole through the connecting rod 2, so that the tension of the heat transfer film can be adjusted horizontally and vertically. Moreover, due to the design of the shape of the arc middle and low roller 1, it will be able to play a good guiding role on the heat transfer film, and can achieve the effect of automatically adjusting the ruffles within a certain range, thereby achieving the coordination of manual adjustment and automatic adjustment within a certain range, thereby realizing the function of preventing the heat transfer film from having ruffles.

[0050] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coating guide roller, comprising a guide roller assembly, characterized in that: The guide roller assembly consists of an arc-shaped middle-low roller and adjustment mechanisms on both sides. The outer surface of the arc-shaped middle-low roller is formed with straight sections at both ends, and the middle of the arc-shaped middle-low roller is formed with an arc-shaped middle-low section. An adjustment mechanism, the adjustment mechanism being arranged inside the front and rear ends of the arc low roller; In which, the adjustment mechanism includes a connecting rod, and there are two connecting rods. The outer surfaces of the two connecting rods are respectively movably connected to the internal front and rear ends of the arc middle and low rollers, and the opposite ends of the two connecting rods are fixedly installed with spherical blocks. The outer surface of the spherical block is movably connected to the movable block, and the outer surface of the movable block is fixedly installed with a moving block. The outer surface of the moving block is movably connected to the fixed block, and the internal thread of the moving block is connected with a screw. The outer surfaces of both ends of the screw are movably connected to the internal of the fixed block, and both ends of the screw are fixedly installed with a twisting block.

2. A coating device, characterized in that, The coating guide roller according to claim 1 is included.

3. A coating device according to claim 2, comprising a bracket, characterized in that : The interior of the bracket is fixedly connected to the guide roller assembly, and a base is fixedly installed at the bottom end of the bracket.

4. A coating device according to claim 3, characterized in that: A reeling roller and a reeling roller are movably mounted on the left and right sides of the bracket.

5. A coating device according to claim 4, characterized in that: A first traction roller is movably sleeved inside the bracket, a second traction roller is movably connected to an outer surface of the first traction roller, and both ends of the second traction roller are movably sleeved inside the bracket.

6. A coating device according to claim 5, characterized in that: An ink cartridge is fixedly installed on the right side of the interior of the bracket, and a coating roller is movably connected to the interior of the top of the ink cartridge. Both ends of the coating roller are movably sleeved with the interior of the bracket.

7. A coating device according to claim 6, characterized in that: A drying box is fixedly installed on the top of the bracket, and a heating wire is fixedly installed inside the drying box.

8. A coating device according to claim 7, characterized in that: Guide rollers are fixedly installed inside the bracket and the drying box.

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