Heat-sensitive material coating coating device and method suitable for high-speed printing

Abstract

The invention relates to the technical field of heat-sensitive material coating coating, in particular to a heat-sensitive material coating coating device and method suitable for high-speed printing, the heat-sensitive material coating coating device comprises a workbench, a glue pool is formed in the middle of the upper end of the workbench, a coating roller is installed in the glue pool, a finishing unit is installed on one side of the coating roller, and heat-sensitive paper is arranged at the upper end of the coating roller and the upper end of the finishing unit; the arrangement unit comprises a center shaft, a tensioning roller is fixedly connected to the outer side of the middle of the center shaft, annular grooves are formed in the inner sides of the two ends of the tensioning roller correspondingly, and elastic shielding cloth, tensioning protruding blocks, elastic adjusting units and transverse rods are installed in the annular grooves. According to the thermal-sensitive paper coating device, before thermal-sensitive paper is coated, the thermal-sensitive paper can be tidied to be flat, meanwhile, through cooperation of the arc-shaped rods and the rubber columns, transverse vibration of the thermal-sensitive paper in the conveying process is eliminated to a certain degree, and the thermal-sensitive paper is conveyed to a certain degree; and corrugations generated during coating of the coating are effectively avoided, and the coating quality of the coating is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hot sensitive material coating, in particular to a hot sensitive material coating device and method suitable for high-speed printing. BACKGROUND

[0002] The hot sensitive material coating device suitable for high-speed printing is specially designed for hot sensitive paper coating and finishing equipment, and aims to solve the problems of easy splashing of the coating on the feeding roller, poor coating stability and large tension fluctuation of the paper web during high-speed production of the hot sensitive paper. In addition, it also solves the problem of paper web tension fluctuation by using medium vacuum suction device and controllable medium-high soft roller calibrator, thereby improving the surface smoothness of the paper web. During the coating process of the hot sensitive paper, if there are wrinkles and slight vibration problems during the conveying of the hot sensitive paper, they will all affect the quality of the coating, especially the transverse vibration, which will cause the coating to appear corrugation. SUMMARY

[0003] The present application aims to provide a hot sensitive material coating device and method suitable for high-speed printing to solve the problem of coating quality being affected by wrinkles and slight vibration during the coating process of the hot sensitive paper.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The utility model provides a kind of coating device and method of thermal material coating suitable for high-speed printing, including workbench, glue pool is set in the middle of upper end of the workbench, coating roller is installed inside the glue pool, arranging unit is installed in one side of the coating roller, thermal paper is equipped in the upper end of the coating roller and arranging unit;The arranging unit includes central shaft, the outer side of the central shaft middle is fixedly connected with tensioning roller, the inner side of the both ends of the tensioning roller is equipped with annular groove, and the annular groove is installed with elastic shielding cloth, tensioning protruding block, elastic force adjusting unit and cross bar inside;The tensioning protruding block includes arc-shaped rod, the middle of the arc-shaped rod is fixedly connected with connecting column, the other end of the connecting column is fixedly connected with connecting seat, the elastic force adjusting unit includes gas shell, the gas shell is equipped with gas cavity inside, the ring plate is slidably connected in the gas cavity, the ring plate one end is fixedly connected with guide column and rotationally connected with threaded rod, the gas shell is equipped with through-hole inside, and the through-hole one side is fixedly connected with rubber column.

[0005] As further optimization of the present application, one side of the upper end of the workbench is provided with a tensioning assembly for tensioning the thermal paper roll, the other side of the upper end of the glue pool is provided with a glue scraping roller assembly, the glue scraping roller assembly is installed on the lower side of the thermal paper, one end of the coating roller is fixedly connected with the output shaft of the first motor, and the first motor housing and the coating roller are connected with the workbench through the support.

[0006] As further optimization of the present application, the both ends of the central shaft are rotationally connected with the fixed frame, the fixed frame is provided with two, the fixed frame is parallel between the fixed frame, and the fixed frame is fixedly connected between the bottom end and the workbench, one end of the central shaft is fixedly connected with the main shaft of the second motor, and the second motor housing is fixedly connected with one of the fixed frames through bolts.

[0007] As further optimization of the present application, the both ends of the elastic shielding cloth are fixedly connected with the inner wall of the annular groove, and the elastic shielding cloth is fixedly connected with the arc-shaped rod, and the end of the arc-shaped rod away from the central shaft is exposed outside the elastic shielding cloth.

[0008] As further optimization of the present application, the cross bar is provided with a plurality of, the cross bar and the arc-shaped rod are one-to-one corresponding, the both ends of the arc-shaped rod are fixedly connected with the inner wall of the annular groove, the cross bar is annularly and equidistantly distributed inside the annular groove, and the cross bar is provided with protrusions on the side surface.

[0009] As further optimization of the present application, the arc-shaped rod, the connecting column and the connecting seat are all provided with holes in the middle, which are matched with the cross bar, and the arc-shaped rod, the connecting column and the connecting seat are all slidably connected with the cross bar.

[0010] As a further optimization of the application, the rubber column corresponds to the connecting seat, and the end of the rubber column away from the air shell is fixedly connected with the connecting seat, the rubber column is hollow inside, and the end of the rubber column away from the air shell is connected with the horizontal rod through the sealing ring.

[0011] As a further optimization of the application, the guiding column is slidably connected with the tensioning roller, the threaded rod is screwedly connected with the tensioning roller, the guiding column and the threaded rod are parallel, and the air shell is fixedly connected with the tensioning roller.

[0012] As a further optimization of the application, the distance between the glue scraping roller assembly and the thermal paper is equal to the required thickness of the surface coating of the thermal paper.

[0013] As a further optimization of the application, the method comprises the following steps: One: the thermal paper to be coated is placed at a position to be processed, glue is applied to the thermal paper by the coating roller during coating, and the excess glue is scraped off by the glue scraping roller assembly when the thermal paper passes through the glue scraping roller assembly, so that a coating with a specified thickness is formed. Two: during the conveying of the thermal paper, the arc-shaped rod arranged in the arrangement unit continuously tensions the thermal paper to both sides during the rotation of the tensioning roller, so as to ensure the flatness of the thermal paper during coating. Three: during the actual application of the arc-shaped rod, the threaded rod is rotated to drive the ring plate to displace, the pressure of the inert gas in the air shell is adjusted during the displacement of the ring plate, and the pressure in the rubber column can be adjusted synchronously during the adjustment, so that the elasticity of the rubber column is adjusted. Four: during the actual application of the arc-shaped rod, the elastic shielding cloth is used to position the end away from the center point of the tensioning roller, the horizontal rod is used to position the middle position of the arc-shaped rod, so as to improve the stability of the arc-shaped rod during movement, and the elasticity of the rubber column is adjusted by the pressure of the inert gas in the rubber column, so as to adjust the buffering effect of the arc-shaped rod by the rubber column.

[0014] Compared with the prior art, the application has the following advantages: 1. In the application, the arrangement unit is arranged, so that the thermal paper can be arranged flat before coating, and the transverse vibration of the thermal paper during conveying is eliminated to a certain extent by the cooperation of the arc-shaped rod and the rubber column, so that the coating is prevented from being corrugated, and the coating quality is further improved. 2、The present application, by setting the elastic adjusting mechanism, in the actual use process of the device, through the adjustment of the ring plate position, and the inert gas filled in the gas shell, effectively adjust the elasticity of the rubber column, and then can adjust the elastic force of the arc-shaped rod in the actual use process, to adapt to different thermal paper processing needs. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of the present application; Figure 2 It is the structure schematic diagram of the present application arrangement unit; Figure 3 It is the tensioning roller sectional view of the present application; Figure 4 It is the structure schematic diagram of the present application Figure 3 A place structure schematic diagram in the present application; Figure 5 It is the structure schematic diagram of the present application elastic adjusting unit; Figure 6 It is the structure schematic diagram of the present application gas shell; Figure 7 It is the structure schematic diagram of the present application Figure 6 B place structure schematic diagram in the present application; Figure 8 It is the structure schematic diagram of the present application cross rod; Figure 9 It is the structure schematic diagram of the present application tensioning convex block; Figure 10 It is the structure schematic diagram of the present application rubber column.

[0016] In the figure: 1, workbench;2, thermal paper;3, tensioning assembly;4, glue scraping roller assembly;5, coating roller;6, glue pool;7, first motor; 8, arrangement unit;81, center shaft;82, tensioning roller;83, elastic shielding cloth; 84, tensioning convex block;841, arc-shaped rod;842, connecting column;843, connecting seat; 85, elastic adjusting unit;851, gas shell;852, gas cavity;853, rubber column;854, through hole;855, ring plate;856, guide column;857, threaded rod; 86, cross rod;87, ring groove; 9, second motor;10, fixed frame. DETAILED DESCRIPTION

[0017] Please refer to Figures 1-10 , the present application provides a technical scheme: A kind of thermal material coating coating device and method suitable for high-speed printing, including workbench 1, the middle of upper end of workbench 1 is provided with glue pool 6, coating roller 5 is installed in glue pool 6, arranging unit 8 is installed on one side of coating roller 5, and thermal paper 2 is arranged at the upper end of coating roller 5 and arranging unit 8;Arranging unit 8 includes central shaft 81, central shaft 81 is fixedly connected with tensioning roller 82 on the outside of middle, and the inner side of both ends of tensioning roller 82 is provided with annular groove 87, and annular groove 87 is installed with elastic shielding cloth 83, tensioning convex block 84, elastic force adjusting unit 85 and cross bar 86 in inside;Tensioning convex block 84 includes arc-shaped rod 841, arc-shaped rod 841 is fixedly connected with connecting column 842 in middle, connecting column 842 is fixedly connected with connecting seat 843 at other end, and elastic force adjusting unit 85 includes gas shell 851, and gas cavity 852 is arranged in gas shell 851, annular plate 855 is slidably connected in gas cavity 852, annular plate 855 is fixedly connected with guide column 856 at one end and is rotatably connected with threaded rod 857, and through hole 854 is arranged in gas shell 851, and rubber column 853 is fixedly connected on one side of through hole 854.

[0018] As a further embodiment of the technical scheme of the present application, one end of the workbench 1 is provided with a tensioning assembly 3 for tensioning the thermal paper 2, and the other end of the glue pool 6 is provided with a glue scraping roller assembly 4, which is installed below the thermal paper 2. One end of the coating roller 5 is fixedly connected with the output shaft of the first motor 7, and the housing of the first motor 7 and the coating roller 5 are connected with the workbench 1 through a support. Through the above arrangement, the stability of the thermal paper 2 during transmission can be further improved, thereby ensuring the stability of the coating process. As a further embodiment of the technical scheme of the present application, both ends of the central shaft 81 are rotatably connected with the fixed frame 10, and the fixed frame 10 is provided with two parallel fixed frames 10, and the bottom end of the fixed frame 10 is fixedly connected with the workbench 1. One end of the central shaft 81 is fixedly connected with the main shaft of the second motor 9, and the housing of the second motor 9 is fixedly connected with one of the fixed frames 10 through bolts. Through the above arrangement, the central shaft 81 can be driven to rotate by the second motor 9, thereby stably driving the tensioning roller 82 to rotate. As a further embodiment of the technical scheme of the present application, both ends of the elastic shielding cloth 83 are fixedly connected with the inner wall of the annular groove 87, and the elastic shielding cloth 83 is fixedly connected with the arc-shaped rod 841. The end of the arc-shaped rod 841 away from the central shaft 81 is exposed outside the elastic shielding cloth 83. Through the above arrangement, dust can be prevented from entering the inside of the annular groove 87, thereby improving the stability of the device during use. As a further implementation of the scheme, the cross rod 86 is provided with a plurality of, the cross rod 86 and the arc-shaped rod 841 one-to-one correspondence, the arc-shaped rod 841 both ends and the inner wall of the ring groove 87 are fixedly connected, the cross rod 86 is equidistantly distributed inside the ring groove 87, the side of the cross rod 86 is provided with a protrusion, through the above setting, the stability of the arc-shaped rod 841 in the moving process can be ensured; As a further implementation of the scheme, the arc-shaped rod 841, the connecting column 842 and the connecting seat 843 are provided with holes corresponding to the cross rod 86, and the arc-shaped rod 841, the connecting column 842 and the connecting seat 843 are slidably connected with the cross rod 86, which can further improve the stability of the arrangement unit 8 during operation; As a further implementation of the scheme, the rubber column 853 corresponds to the connecting seat 843, and the end of the rubber column 853 away from the air shell 851 is fixedly connected with the connecting seat 843. The inside of the rubber column 853 is hollow, and the end of the rubber column 853 away from the air shell 851 is slidably connected with the cross rod 86 through a sealing ring. Through the above setting, the air pressure inside the rubber column 853 can be adjusted, and the spring force of the rubber column 853 can be adjusted; As a further implementation of the scheme, the guide column 856 is slidably connected with the tensioning roller 82, the threaded rod 857 is screwedly connected with the tensioning roller 82, the guide column 856 and the threaded rod 857 are parallel, and the air shell 851 is fixedly connected with the tensioning roller 82. Through the above setting, the position of the ring plate 855 can be adjusted, and the stability of the ring plate 855 during position adjustment can be ensured; As a further implementation of the scheme, the distance between the glue scraping roller assembly 4 and the thermal paper 2 is equal to the required thickness of the surface coating of the thermal paper 2. Through the above setting, the quality of the coating thickness can be effectively ensured; As a further implementation of the scheme, the method comprises the following steps: One: the thermal paper 2 to be coated is placed in the position to be processed. During the coating process, the glue is applied by the coating roller 5. After the glue application is completed, the thermal paper 2 passes through the glue scraping roller assembly 4 to scrape off the excess glue and form a coating with a specified required thickness; Two: during the conveying of the thermal paper 2, the arc-shaped rod 841 arranged in the arrangement unit 8 continuously tensions the thermal paper 2 to both sides during the rotation of the tensioning roller 82, so as to ensure the flatness of the thermal paper 2 during coating; Three: in the actual application process, the arc-shaped rod 841 drives the ring plate 855 to displace through the threaded rod 857, the ring plate 855 adjusts the gas pressure of the inert gas in the gas shell 851 in the displacement process, and the pressure in the rubber column 853 can be adjusted synchronously in the adjustment process, so that the elastic force of the rubber column 853 is adjusted; Four: in the actual application process, the arc-shaped rod 841 is positioned at one end away from the center point of the tensioning roller 82 through the elastic shielding cloth 83, and the middle position of the arc-shaped rod 841 is positioned through the transverse rod 86, so that the stability of the arc-shaped rod 841 in the movement process is improved, and the elastic force of the rubber column 853 is adjusted through the pressure of the inert gas in the rubber column 853, so that the buffering effect of the arc-shaped rod 841 is adjusted through the rubber column 853.

[0019] The principles and implementation modes of the present application are described by applying specific examples in the present application, and the above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred implementation mode of the present application, and it should be pointed out that, due to the limitation of language expression, there are infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, decorations or changes can be made without departing from the principles of the present application, and the above technical features can be combined in a proper way; the improvements, decorations, changes or combinations, or the direct application of the inventive concept and technical scheme to other occasions without improvement, should be regarded as the protection scope of the present application.

Claims

1. A thermal material coating device suitable for high-speed printing, comprising a worktable (1), characterized in that: The workbench (1) has a glue tank (6) in the middle of its upper end. A coating roller (5) is installed inside the glue tank (6). A finishing unit (8) is installed on one side of the coating roller (5). Thermal paper (2) is provided on the upper end of the coating roller (5) and the finishing unit (8). The sorting unit (8) includes a central shaft (81), a tension roller (82) is fixedly connected to the outer side of the middle of the central shaft (81), and annular grooves (87) are opened on the inner sides of both ends of the tension roller (82). An elastic shielding cloth (83), tensioning protrusions (84), elastic adjustment unit (85) and crossbar (86) are installed inside the annular grooves (87). The tensioning protrusion (84) includes an arc-shaped rod (841), a connecting column (842) is fixedly connected in the middle of the arc-shaped rod (841), and a connecting seat (843) is fixedly connected at the other end of the connecting column (842). The elastic adjustment unit (85) includes an air shell (851), an air cavity (852) is opened inside the air shell (851), an annular plate (855) is slidably connected inside the air cavity (852), a guide column (856) is fixedly connected at one end of the annular plate (855), and a threaded rod (857) is rotatably connected thereto. A through hole (854) is opened inside the air shell (851), and a rubber column (853) is fixedly connected to one side of the through hole (854).

2. The thermal material coating device for high-speed printing according to claim 1, characterized in that: One end of the workbench (1) is equipped with a tensioning component (3) for tensioning the thermal paper (2) during winding. The other end of the glue tank (6) is equipped with a scraper roller assembly (4). The scraper roller assembly (4) is installed on the lower side of the thermal paper (2). One end of the coating roller (5) is fixedly connected to the output shaft of the first motor (7). The housing of the first motor (7) and the coating roller (5) are both connected to the workbench (1) through a bracket.

3. The thermal material coating device for high-speed printing according to claim 1, characterized in that: Both ends of the central shaft (81) are rotatably connected to the fixed frame (10). There are two fixed frames (10), which are parallel to each other. The bottom end of the fixed frame (10) is fixedly connected to the worktable (1). One end of the central shaft (81) is fixedly connected to the main shaft of the second motor (9). The housing of the second motor (9) is fixedly connected to one of the fixed frames (10) by bolts.

4. The thermal material coating device for high-speed printing according to claim 1, characterized in that: The elastic shielding cloth (83) is fixedly connected to the inner wall of the annular groove (87) at both ends, and is fixedly connected to the arc rod (841). The end of the arc rod (841) away from the central axis (81) is exposed on the outside of the elastic shielding cloth (83).

5. The thermal material coating device for high-speed printing according to claim 1, characterized in that: The crossbars (86) are provided in multiple ways, and the crossbars (86) correspond one-to-one with the arc-shaped bars (841). The two ends of the arc-shaped bars (841) are fixedly connected to the inner wall of the annular groove (87). The crossbars (86) are distributed in a ring at equal intervals inside the annular groove (87), and the sides of the crossbars (86) are provided with protrusions.

6. The thermal material coating apparatus for high-speed printing according to claim 1, characterized in that: The arc-shaped rod (841), the connecting column (842) and the connecting seat (843) are all provided with holes that are compatible with the crossbar (86), and the arc-shaped rod (841), the connecting column (842) and the connecting seat (843) are all slidably connected to the crossbar (86).

7. The thermal material coating apparatus for high-speed printing according to claim 1, characterized in that: The rubber column (853) corresponds one-to-one with the connecting seat (843), and the end of the rubber column (853) away from the air shell (851) is fixedly connected to the connecting seat (843). The interior of the rubber column (853) is hollow, and the end of the rubber column (853) away from the air shell (851) is slidably connected to the crossbar (86) through a sealing ring.

8. The thermal material coating apparatus for high-speed printing according to claim 1, characterized in that: The guide post (856) is slidably connected to the tension roller (82), the threaded rod (857) is spirally connected to the tension roller (82), the guide post (856) and the threaded rod (857) are parallel to each other, and the air shell (851) is fixedly connected to the tension roller (82).

9. A thermal material coating device suitable for high-speed printing according to claim 2, characterized in that: The spacing between the scraper roller assembly (4) and the thermal paper (2) is equal to the required thickness of the coating on the surface of the thermal paper (2).

10. A method for applying a thermal material coating suitable for high-speed printing according to any one of claims 1-9, characterized in that: Includes the following steps:

1. Place the thermal paper (2) to be coated at the location to be processed. During the coating process, apply glue through the coating roller (5). After the glue is applied, the thermal paper (2) scrapes off the excess glue when it passes through the glue scraper assembly (4) to form a coating of the specified thickness. Second: During the conveying process of thermal paper (2), the arc rod (841) set inside the sorting unit (8) continuously tensions the thermal paper (2) to both sides during the rotation of the tension roller (82) to ensure the flatness of the thermal paper (2) during the coating process.

3. In practical applications, the arc rod (841) drives the ring plate (855) to move by rotating the threaded rod (857). During the displacement, the ring plate (855) adjusts the pressure of the inert gas inside the gas shell (851). During the adjustment, the pressure inside the rubber column (853) can be adjusted simultaneously to adjust the elasticity of the rubber column (853). Fourth: In actual application, the arc rod (841) is positioned by the elastic shielding cloth (83) at the end away from the center point of the tension roller (82), and the middle position of the arc rod (841) is positioned by the set crossbar (86) to improve the stability of the arc rod (841) during movement. The elastic force of the rubber column (853) is adjusted by the pressure of the inert gas inside the rubber column (853) to adjust the buffering effect of the arc rod (841).

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