Temperature control precision adjusting structure of laser film holographic pattern mold pressing roller

Abstract

The utility model discloses a temperature control precision adjusting structure of a laser film holographic pattern mould pressing roller, which relates to the technical field of laser film production equipment and comprises two racks, a mould pressing plate roller and a pressing roller are arranged between the two racks, and a temperature control component capable of controlling the temperature of the pressing roller is assembled on the racks. An adjusting assembly capable of adjusting the distance between the pressing roller and the mold pressing plate roller is further assembled on the machine frame. The temperature of the pressing roller is accurately controlled through the temperature control assembly, temperature fluctuation in the imprinting process can be effectively reduced, it is ensured that the temperature of the pressing roller is always kept within the range suitable for mold pressing, and therefore the definition and consistency of holographic patterns are improved; and due to the design of the adjusting assembly, the distance between the pressing roller and the mold pressing plate roller can be adjusted more conveniently and accurately, the laser film coining device can adapt to laser films of different thicknesses, it is ensured that pressure is uniform in the coining process, and the problem of uneven coining or excessive coining is solved.

Description

Technical Field

[0001] This utility model relates to the field of laser film production equipment technology, and in particular to a temperature control precision adjustment structure for laser film holographic pattern molding rollers. Background Technology

[0002] Laser film holographic pattern molding is a technology that uses physical and chemical methods to transfer holographic patterns onto substrates (such as PET, BOPP, PVC, etc.).

[0003] In the traditional laser film holographic pattern embossing process, embossing rollers and pressure rollers are usually used to imprint the holographic pattern. However, existing embossing equipment has shortcomings in temperature control and distance adjustment between the pressure roller and the embossing roller. For example, in terms of temperature control, although existing embossing equipment can adjust the temperature, in the actual embossing process, most pressure rollers have a straight tube inside. The heat dissipated by the straight tube is used to cool or heat the pressure roller. Since the straight tube cannot be attached to the inner surface of the pressure roller, it will cause uneven temperature distribution, which will easily lead to local overheating or local undercooling. This not only affects the clarity and consistency of the holographic pattern, but may also cause material deformation or damage. Utility Model Content

[0004] The purpose of this invention is to propose a temperature control precision adjustment structure for laser film holographic pattern molded pressure rollers in order to solve the problem of uneven temperature distribution inside the pressure rollers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The temperature control precision adjustment structure of the laser film holographic pattern molding roller includes a frame, with a molding roller and a pressure roller arranged between two frames. The frame is equipped with a temperature control component that can control the temperature of the pressure roller, and the frame is also equipped with an adjustment component that can adjust the distance between the pressure roller and the molding roller.

[0007] The temperature control assembly includes a lifting frame that is slidably mounted on the frame. The pressure roller is mounted between two lifting frames via a rotary joint. A water tank is fixedly connected to one side of one of the lifting frames. A water pump is provided on one side of the frame. The pressure roller is equipped with a circulation component that can absorb and increase the temperature of the pressure roller. The circulation component helps to improve the printing quality of the holographic pattern.

[0008] As a further description of the above technical solution:

[0009] The circulation component includes an annular tube disposed inside the pressure roller. One end of the annular tube extends to the outside of the rotary joint and is connected to the water inlet of the water tank and is equipped with a water outlet pipe. The inlet and outlet ends of the water pump are both connected to water inlet pipes. One end of each water inlet pipe is connected to the water outlet of the water tank and one end of the annular tube, respectively.

[0010] As a further description of the above technical solution:

[0011] The annular tube is threaded inside the pressure roller and is in contact with the inner wall of the pressure roller. The water inlet pipe is a flexible hose.

[0012] As a further description of the above technical solution:

[0013] A temperature sensor is installed on one side of the water tank, and a resistance wire is installed inside the water tank.

[0014] As a further description of the above technical solution:

[0015] The adjustment assembly includes a threaded rod rotatably mounted on the frame, a gear fixedly connected to the top of the threaded rod, a synchronous belt meshing between the two gears, and a servo motor fixedly connected to one side of the frame.

[0016] As a further description of the above technical solution:

[0017] One of the threaded rods is fixedly installed on the output end of the servo motor, and the lifting frame is threaded onto the threaded rod.

[0018] As a further description of the above technical solution:

[0019] The frame is also equipped with auxiliary components;

[0020] The auxiliary components include pointing components symmetrically installed on one side of the lifting frame, and a scale line is provided on one side of the frame.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0022] Precise temperature control of the pressure rollers via the temperature control component effectively reduces temperature fluctuations during the printing process, ensuring the roller temperature remains within a suitable range for molding. This improves the clarity and consistency of the holographic pattern. The spiral shape of the annular tube ensures even distribution throughout the roller's interior, maximizing contact with the inner wall and providing uniform temperature control to prevent localized overheating or cooling. The adjustment component design makes adjusting the distance between the pressure roller and the molding roller more convenient and precise, accommodating laser films of varying thicknesses and ensuring uniform pressure during printing, avoiding uneven or over-pressing. Auxiliary components, through the cooperation of the pointing parts and scale lines, allow for more precise adjustment of the lifting frame. Operators can easily control the distance between the pressure roller and the molding roller according to the scale lines, ensuring adaptability to laser films of different thicknesses and preventing printing quality problems caused by improper distance. The temperature control and adjustment components allow for temperature and distance adjustment without stopping the machine, greatly improving the equipment's ease of operation and production efficiency. Attached Figure Description

[0023] Figure 1 An overall schematic diagram according to an embodiment of the present invention is shown;

[0024] Figure 2 The present invention provides an embodiment of the present invention. Figure 1 Another perspective view;

[0025] Figure 3 A schematic diagram of a temperature control component according to an embodiment of the present invention is shown;

[0026] Figure 4 A schematic diagram of the adjustment component provided according to an embodiment of the present invention is shown;

[0027] Figure 5 The present invention provides an embodiment of the present invention. Figure 4 A magnified view of region A in the middle.

[0028] Legend:

[0029] 10. Frame; 11. Molding roller; 12. Pressure roller;

[0030] 20. Temperature control component; 21. Lifting frame; 22. Rotary joint; 23. Water tank; 24. Water pump; 25. Circulation component; 251. Ring pipe; 252. Outlet pipe; 253. Inlet pipe;

[0031] 30. Adjustment component; 31. Threaded rod; 32. Synchronous belt; 33. Servo motor; 34. Auxiliary component; 341. Pointing component; 342. Scale line. Detailed Implementation

[0032] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figures 1-5 As shown, the present invention provides a temperature control precision adjustment structure for a laser film holographic pattern molding roller, including a frame 10, a molding roller 11 and a pressure roller 12 arranged between two frames 10, a power source (motor) on both the molding roller 11 and the pressure roller 12, which can drive the molding roller 11 and the pressure roller 12 to rotate, a temperature control component 20 that can control the temperature of the pressure roller 12 is mounted on the frame 10, and an adjustment component 30 that can adjust the distance between the pressure roller 12 and the molding roller 11 is also mounted on the frame 10.

[0034] The temperature control assembly 20 includes a lifting frame 21 that is slidably mounted on the frame 10. The pressure roller 12 is mounted between the two lifting frames 21 via a rotary joint 22. A water tank 23 is fixedly connected to one side of one of the lifting frames 21. The water tank 23 contains coolant. A water pump 24 is provided on one side of the frame 10. The pressure roller 12 is equipped with a circulation component 25 that can absorb and increase the temperature of the pressure roller 12. The circulation component 25 helps to improve the printing quality of the holographic pattern.

[0035] like Figure 3 As shown, the circulation component 25 includes an annular tube 251 disposed inside the pressure roller 12. One end of the annular tube 251 extends to the outside of the rotary joint 22 and is connected to the water inlet of the water tank 23, and is equipped with a water outlet pipe 252. The inlet and outlet ends of the water pump 24 are both connected to water inlet pipes 253. An electrically controlled valve is installed on the water inlet pipe 253. By adjusting the opening of the electrically controlled valve, the flow rate of the coolant can be controlled. During the molding stage, if the temperature of the pressure roller 12 rises, the flow rate of the coolant can be increased to enhance the cooling effect; conversely, if the temperature is stable... The flow rate can be reduced to save energy by setting the flow rate or lowering it. One end of each of the two inlet pipes 253 is connected to the outlet of the water tank 23 and one end of the annular pipe 251, respectively. By starting the water pump 24, the inlet pipes 253 can transport the coolant in the water tank 23, allowing the coolant to enter the annular pipe 251. Through the annular pipe 251, the coolant can contact the inner wall of the pressure roller 12 to the maximum extent, thereby effectively removing or heating the coolant. Then, the coolant flows back to the water tank 23 through the outlet pipe 252, thus circulating.

[0036] In more detail, the annular tube 251 is threaded inside the pressure roller 12. By being threaded, it ensures that the coolant can be evenly distributed throughout the entire pressure roller 12, maximizing contact with the inner wall of the pressure roller 12, thereby effectively removing or heating heat. The annular tube 251 is in contact with the inner wall of the pressure roller 12. The water inlet pipe 253 is a flexible hose with a slack. By making the water inlet pipe 253 a flexible hose, the water inlet pipe 253 will also extend along with the pressure roller 12 when it is raised or lowered.

[0037] In more detail, a temperature sensor is installed on one side of the water tank 23. The temperature sensor is a platinum resistance temperature sensor, model PT100, which can monitor the temperature of the coolant inside the water tank 23 in real time. A resistance wire is installed inside the water tank 23. When the temperature sensor detects that the temperature of the coolant inside the water tank 23 is low, the controller on one side activates the power supply on the resistance wire, so that the resistance wire can heat the coolant. If the coolant temperature is too high, the temperature can be reduced by increasing the output of the cooling device (such as a cooling tower or refrigeration unit). The temperature controller controls the temperature of the coolant, thereby effectively controlling the temperature of the pressure roller 12 during the molding stage, ensuring that it is kept within a suitable molding temperature range (usually around 80℃-120℃, depending on the material and process requirements). This helps to improve the imprinting quality of the holographic pattern, prevent problems such as pattern blurring and material deformation caused by temperature fluctuations, and also helps to extend the service life of the equipment.

[0038] like Figure 4 As shown, the adjustment assembly 30 includes a threaded rod 31 rotatably mounted on the frame 10. A gear is fixedly connected to the top of the threaded rod 31, and a synchronous belt 32 meshes between the two gears. When one of the threaded rods 31 rotates, the gear connected to it will also start to rotate. Through the meshing transmission of the synchronous belt 32, the two threaded rods 31 rotate synchronously. A servo motor 33 is fixedly connected to one side of the frame 10.

[0039] In more detail, one of the threaded rods 31 is fixedly mounted on the output end of the servo motor 33, and the lifting frame 21 is threadedly mounted on the threaded rod 31;

[0040] In use, the distance between the pressure roller 12 and the molding roller 11 is adjusted according to the thickness of the laser film. The servo motor 33 is started to control the rotation of the threaded rod 31 connected to it. Then, through the meshing transmission of gears and synchronous belt 32, the two threaded rods 31 rotate synchronously, thereby driving the lifting frame 21 and the pressure roller 12 to adjust their positions. Then, the laser film is passed between the pressure roller 12 and the molding roller 11. By starting the corresponding power source, the pressure roller 12 and the molding roller 11 are driven to start rotating, so that the pressure roller 12 and the molding roller 11 rotate towards each other. Under the combined action of the two, the laser film continuously passes through the molding area, thereby realizing the continuous imprinting of the holographic pattern.

[0041] like Figure 5 As shown, auxiliary components 34 are also provided on the frame 10;

[0042] The auxiliary component 34 includes a guide 341 symmetrically installed on one side of the lifting frame 21. A scale line 342 is provided on one side of the frame 10. When the lifting frame 21 is raised or lowered, it will also drive the guide 341 to move synchronously. Through the scale lines 342 on both sides, the lifting frame 21 can be precisely raised or lowered to adjust its position.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A temperature control precision adjustment structure for a laser film holographic pattern molding roller, comprising a frame (10), wherein a molding roller (11) and a pressure roller (12) are arranged between two frames (10), characterized in that, Also includes: The frame (10) is equipped with a temperature control component (20) that can control the temperature of the pressure roller (12), and the frame (10) is also equipped with an adjustment component (30) that can adjust the distance between the pressure roller (12) and the molding roller (11). The temperature control component (20) includes a lifting frame (21) slidably mounted on the frame (10). The pressure roller (12) is mounted between two lifting frames (21) via a rotary joint (22). A water tank (23) is fixedly connected to one side of one of the lifting frames (21). A water pump (24) is provided on one side of the frame (10). The pressure roller (12) is equipped with a circulation component (25) that can absorb and increase the temperature of the pressure roller (12). The circulation component (25) helps to improve the printing quality of the holographic pattern.

2. The temperature control precision adjustment structure for the laser film holographic pattern molding roller according to claim 1, characterized in that, The circulation component (25) includes an annular tube (251) disposed inside the pressure roller (12). One end of the annular tube (251) extends to the outside of the rotary joint (22) and is connected to the water inlet of the water tank (23) and is equipped with an outlet pipe (252). The inlet and outlet ends of the water pump (24) are both connected to an inlet pipe (253). One end of each inlet pipe (253) is connected to the water outlet of the water tank (23) and one end of the annular tube (251), respectively.

3. The temperature control precision adjustment structure for the laser film holographic pattern molding roller according to claim 2, characterized in that, The annular tube (251) is threaded inside the pressure roller (12) and the annular tube (251) is in contact with the inner wall of the pressure roller (12). The water inlet pipe (253) is a flexible hose.

4. The temperature control precision adjustment structure for the laser film holographic pattern molding roller according to claim 1, characterized in that, A temperature sensor is provided on one side of the water tank (23), and a resistance wire is provided inside the water tank (23).

5. The temperature control precision adjustment structure for the laser film holographic pattern molding roller according to claim 1, characterized in that, The adjustment assembly (30) includes a threaded rod (31) rotatably mounted on the frame (10), a gear is fixedly connected to the top end of the threaded rod (31), a synchronous belt (32) meshes between the two gears, and a servo motor (33) is fixedly connected to one side of the frame (10).

6. The temperature control precision adjustment structure for the laser film holographic pattern molding roller according to claim 5, characterized in that, One of the threaded rods (31) is fixedly installed on the output end of the servo motor (33), and the lifting frame (21) is threadedly installed on the threaded rod (31).

7. The temperature control precision adjustment structure for the laser film holographic pattern molding roller according to claim 5, characterized in that, The frame (10) is also provided with auxiliary components (34); The auxiliary component (34) includes a guide (341) symmetrically installed on one side of the lifting frame (21), and a scale line (342) is provided on one side of the frame (10).

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