High-speed coating machine
By introducing a leveling structure and tensioning roller system into a high-speed coating machine, combined with an electric heating roller and an air cooler, the problem of tearing and wrinkling caused by excessive friction during the coating process of thermal paper is solved, achieving flatness and rapid drying of thermal paper.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HANPING NEW MATERIALS CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-19
AI Technical Summary
In existing high-speed coating machines, the increased friction at the bottom of the curved frame causes the thermal paper to tear.
By setting up a flat structure and tension rollers, and using a return spring in conjunction with a cross top support rod to push the tension rollers to move, the friction of the thermal paper is reduced. At the same time, electric heating rollers and air coolers are used for heating and cooling to prevent tearing and wrinkling.
It effectively avoids tearing of thermal paper due to excessive friction, and ensures the flatness of thermal paper by rapid drying through heating and cooling.
Smart Images

Figure CN224253344U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating machine technology, and in particular to a high-speed coating machine. Background Technology
[0002] A coating machine is an industrial device that uniformly coats a substrate (such as film, paper, metal foil, etc.) with a coating. Its main function is to achieve precise and uniform coating, and it typically includes modules for feeding, coating, drying, and winding.
[0003] For example, Chinese Patent Publication No. (CN218854641U) discloses a high-speed coating machine, which describes: "It includes a machine housing, a motor, and thermal paper. A heating assembly is provided on the inner wall side of the machine housing; the heating assembly includes a heat-conducting cylinder rotatably connected to the inner wall side of the machine housing; the end of the motor's main shaft passes through the machine housing; the end of the motor's main shaft is fixedly connected to the heat-conducting cylinder; multiple electric heating rods are installed on the inner wall side of the heat-conducting cylinder, and the multiple electric heating rods are evenly distributed. This utility model has a reasonable structure. When multiple electric heating rods are energized, the heat-conducting cylinder is heated. When the motor is started, the rotation of the motor drives the rotation of the heat-conducting cylinder to heat and dry the thermal paper, avoiding the bending of the thermal paper under the action of airflow. The electric push rod drives the arc frame to move downward through the connecting block to tension the thermal paper and prevent the thermal paper from bending and wrinkling during the winding process."
[0004] In summary, the device also has the following technical problems: the device avoids wrinkling of the thermal paper by squeezing it with the descending arc frame, but since the arc frame is fixed horizontally and the thermal paper itself is relatively thin, the friction increases when the thermal paper passes through the bottom of the arc frame, which greatly increases the probability of tearing the thermal paper. Therefore, a high-speed coating machine is needed to provide a new technical solution to solve the technical problems mentioned in the above patent. Utility Model Content
[0005] Based on this, it is necessary to provide a high-speed coating machine to address the aforementioned technical problems. By setting a flat structure, after the thermal paper is coated, it is conveyed forward to the area below the tension roller. The tension roller moves downward through the push of a return spring and a cross top support rod, thereby tensioning the thermal paper. At the same time, the tension roller moves and rotates along with the thermal paper during conveying, which can effectively reduce the friction generated when the thermal paper is under pressure, thereby effectively avoiding tearing of the thermal paper due to excessive friction.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] A high-speed coating machine.
[0008] The high-speed coating machine is specifically equipped with a protective frame at the output end of the coating structure. The protective frame has a flat structure inside, and a take-up roller is provided at the end of the protective frame away from the coating structure.
[0009] The protective frame is internally connected to an electric heating roller, and the electric heating roller is internally arranged in a circular array of heating rods.
[0010] In a preferred embodiment of the high-speed coating machine provided by this utility model, a transverse guide frame is fixedly connected inside the protective frame, a guide groove is provided on the surface of the transverse guide frame, and longitudinal sliding grooves are symmetrically provided on both sides of the protective frame.
[0011] In a preferred embodiment of the high-speed coating machine provided by this utility model, a sliding guide rod is fixedly connected inside the transverse guide frame, two sliding seats are symmetrically slidably connected to the surface of the sliding guide rod, a return spring is sleeved on the surface of the sliding guide rod, and a hinge seat is fixedly connected to the bottom surface of the sliding seat.
[0012] In a preferred embodiment of the high-speed coating machine provided by this utility model, the hinged seat is internally hinged with a cross top support rod, the two top ends of the cross top support rod are respectively hinged to two hinged seats, and a central rotating shaft is rotatably provided at the center of the cross top support rod.
[0013] In a preferred embodiment of the high-speed coating machine provided by this utility model, a sliding block is hinged to the bottom end of the cross top support rod, a guide wheel is slidably connected to the inner wall of the longitudinal groove, a crossbar is fixedly connected inside the two guide wheels, the sliding block is slidably connected to the surface of the crossbar, a connecting plate is symmetrically fixedly connected to the surface of the crossbar, a positioning shaft is fixedly connected inside the end of the connecting plate away from the crossbar, and a tensioning roller is rotatably connected to the surface of the positioning shaft.
[0014] In a preferred embodiment of the high-speed coating machine provided by this utility model, an air cooler is fixedly connected inside the protective frame. The air cooler is inclined inside the protective frame, and the air outlet of the air cooler faces the tension roller.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] The high-speed coating machine provided by this utility model, by setting a flat structure, allows the thermal paper to be conveyed forward to the area below the tension roller after coating. The tension roller moves downward by the push of the return spring and the cross top support rod, thereby tensioning the thermal paper. At the same time, the tension roller moves and rotates with the thermal paper as it is conveyed, which can effectively reduce the friction generated when the thermal paper is under pressure, thereby effectively avoiding tearing of the thermal paper due to excessive friction.
[0017] The high-speed coating machine provided by this utility model is equipped with an electric heating roller and an air cooler. The electric heating roller, together with the internal heating rod, can heat itself. When the thermal paper passes over the surface of the electric heating roller, it can be dried quickly. When the thermal paper passes under the tension roller, the air cooler dissipates the heat on its surface, thus restoring the deformed and wrinkled thermal paper. Attached Figure Description
[0018] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0019] Figure 1 A schematic diagram of the overall structure of the high-speed coating machine provided by this utility model;
[0020] Figure 2 A schematic diagram of the overall internal structure of the high-speed coating machine provided by this utility model;
[0021] Figure 3 A schematic diagram of the internal structure of the electric heating roller of the high-speed coating machine provided by this utility model;
[0022] Figure 4 A schematic diagram of the flattening structure of the high-speed coating machine provided by this utility model;
[0023] Figure 5 The high-speed coating machine provided by this utility model Figure 4 A magnified structural diagram of point A in the middle.
[0024] The markings in the diagram are explained as follows:
[0025] 1. Coating structure; 2. Protective frame; 3. Leveling structure; 4. Take-up roller; 5. Electric heating roller; 6. Electric heating rod; 7. Air cooler; 8. Transverse guide frame; 9. Guide groove; 22. Sliding guide rod; 10. Sliding seat; 11. Return spring; 12. Hinge seat; 13. Cross top support rod; 14. Central rotating shaft; 15. Sliding block; 16. Longitudinal slide groove; 17. Crossbar; 18. Guide wheel; 19. Connecting plate; 20. Positioning shaft; 21. Tensioning roller. Detailed Implementation
[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0027] As described in the background art, the device avoids wrinkling of the thermal paper by pressing the thermal paper with the descending arc frame. However, since the arc frame is fixed horizontally and the thermal paper itself is thin, the friction increases when the thermal paper passes through the bottom of the arc frame, which greatly increases the probability of the thermal paper tearing.
[0028] To solve this technical problem, this utility model provides a high-speed coating machine.
[0029] For details, please refer to Figures 1-3 The high-speed coating machine specifically includes a coating structure 1, a protective frame 2 is provided at the output end of the coating structure 1, a flattening structure 3 is provided inside the protective frame 2, and a take-up roller 4 is provided at the end of the protective frame 2 away from the coating structure 1.
[0030] The protective frame 2 is internally connected to an electric heating roller 5, and the electric heating roller 5 is internally arranged in a ring array with electric heating rods 6.
[0031] The high-speed coating machine provided by this utility model, through the setting of the flat structure 3, after the thermal paper is coated, is conveyed forward to the lower part of the tension roller 21. The tension roller 21 moves downward by the push of the return spring 11 and the cross top support rod 13, thereby tensioning the thermal paper. At the same time, the tension roller 21 moves and rotates with the thermal paper while it is being conveyed, thereby effectively reducing the friction generated when the thermal paper is under pressure, thus effectively avoiding tearing of the thermal paper due to excessive friction.
[0032] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0033] Example 1:
[0034] Please refer to Figures 2-5 A high-speed coating machine includes a coating structure 1, a protective frame 2 is provided at the output end of the coating structure 1, a flattening structure 3 is provided inside the protective frame 2, and a take-up roller 4 is provided at the end of the protective frame 2 away from the coating structure 1.
[0035] The protective frame 2 is internally connected to an electric heating roller 5, and the electric heating roller 5 is internally arranged in a ring array with electric heating rods 6.
[0036] Specifically, the protective frame 2 is internally fixedly connected to a transverse guide frame 8, the surface of the transverse guide frame 8 is provided with a guide groove 9, and the protective frame 2 is provided with longitudinal sliding grooves 16 symmetrically on both sides.
[0037] Specifically, a sliding guide rod 22 is fixedly connected inside the transverse guide frame 8. Two sliding seats 10 are symmetrically slidably connected to the surface of the sliding guide rod 22. A return spring 11 is sleeved on the surface of the sliding guide rod 22. A hinge seat 12 is fixedly connected to the bottom surface of the sliding seat 10.
[0038] Specifically, the hinge seat 12 is internally hinged to a cross top support rod 13, the two top ends of the cross top support rod 13 are respectively hinged to the two hinge seats 12, and a central rotating shaft 14 is rotatably provided at the center of the cross top support rod 13.
[0039] Specifically, a sliding block 15 is hinged to the bottom end of the cross top support rod 13, a guide wheel 18 is slidably connected to the inner wall of the longitudinal groove 16, a crossbar 17 is fixedly connected inside the two guide wheels 18, the sliding block 15 is slidably connected to the surface of the crossbar 17, a connecting plate 19 is symmetrically fixedly connected to the surface of the crossbar 17, a positioning shaft 20 is fixedly connected inside the end of the connecting plate 19 away from the crossbar 17, and a tensioning roller 21 is rotatably connected to the surface of the positioning shaft 20.
[0040] With the above structural design, when the device is in use, the thermal paper is first coated by the coating structure 1, and then heated and dried by the surface of the electric heating roller 5. After that, it passes through the bottom surface of the tension roller 21 and is finally wound onto the surface of the take-up roller 4. When the thermal paper passes under the tension roller 21, the return spring 11 retracts and pulls the sliding seat 10 to slide inward on the surface of the sliding rod 22. At the same time, the sliding seat 10 pulls the cross top support rod 13 inward. At this time, the cross top support rod 13 rotates its bottom end around the central rotating shaft 14 and extends downward at the same time. While the bottom end of the cross top support rod 13 extends, it retracts inward, so that the sliding block 15 slides on the surface of the cross bar 17. At the same time, the cross bar 17, together with the guide wheel 18, slides downward on the surface of the longitudinal groove 16. As the cross bar 17 descends, it pushes the tension roller 21 to stick tightly to the surface of the thermal paper. While the thermal paper is being conveyed, the tension roller 21 rotates synchronously with the thermal paper. In this way, pressure is applied to the thermal paper while avoiding excessive friction that could cause it to tear.
[0041] Example 2:
[0042] The high-speed coating machine provided in Example 1 has been further optimized, specifically, as follows: Figures 2-3 As shown, an electric heating roller 5 is rotatably connected inside the protective frame 2, and electric heating rods 6 are arranged in a ring array inside the electric heating roller 5.
[0043] Specifically, a fan cooler 7 is fixedly connected inside the protective frame 2. The fan cooler 7 is inclined inside the protective frame 2, and the air outlet of the fan cooler 7 faces the tension roller 21.
[0044] Through the above structural design, the electric heating roller 5 is used in conjunction with the air cooler 7. The electric heating roller 5, together with the internal electric heating rod 6, can heat itself. When the thermal paper passes over the surface of the electric heating roller 5, it can be dried quickly. When the thermal paper passes under the tension roller 21, the air cooler 7 dissipates the heat from its surface, thus restoring the deformed and wrinkled thermal paper.
Claims
1. A high speed coater characterized by; It includes a coating structure (1), the output end of the coating structure (1) is provided with a protective frame (2), the inside of the protective frame (2) is provided with a flattening structure (3), and the end of the protective frame (2) away from the coating structure (1) is provided with a take-up roller (4); The protective frame (2) is rotatably connected to an electric heating roller (5), and the electric heating roller (5) is arranged in a ring array with electric heating rods (6).
2. The high speed coater according to claim 1, characterized in that, The protective frame (2) is internally fixedly connected to a transverse guide frame (8), and the surface of the transverse guide frame (8) is provided with a guide groove (9). The protective frame (2) is provided with longitudinal sliding grooves (16) symmetrically on both sides.
3. The high speed coater according to claim 2, characterized in that, The transverse guide frame (8) is internally fixedly connected to a sliding light rod (22), and two sliding seats (10) are symmetrically slidably connected to the surface of the sliding light rod (22). A return spring (11) is sleeved on the surface of the sliding light rod (22), and a hinge seat (12) is fixedly connected to the bottom surface of the sliding seat (10).
4. The high speed coater according to claim 3, characterized in that, The hinge seat (12) is internally hinged to a cross top support rod (13), the two top ends of the cross top support rod (13) are respectively hinged to the two hinge seats (12), and a central rotating shaft (14) is rotatably provided at the center of the cross top support rod (13).
5. The high speed coater according to claim 4, characterized in that, The bottom end of the cross top support rod (13) is hinged to a sliding block (15), the inner wall of the longitudinal groove (16) is slidably connected to a guide wheel (18), the two guide wheels (18) are fixedly connected to a crossbar (17), the sliding block (15) is slidably connected to the surface of the crossbar (17), the surface of the crossbar (17) is symmetrically fixedly connected to a connecting plate (19), the end of the connecting plate (19) away from the crossbar (17) is fixedly connected to a positioning shaft (20), and the surface of the positioning shaft (20) is rotatably connected to a tensioning roller (21).
6. The high speed coater of claim 1, wherein An air cooler (7) is fixedly connected inside the protective frame (2). The air cooler (7) is inclined inside the protective frame (2), and the air outlet of the air cooler (7) faces the tension roller (21).