Research and development device for tangent plane color or spot color heat transfer printing process

Abstract

The utility model relates to a research and development device for a tangent plane color or spot color heat transfer printing process, and relates to the technical field of heat transfer printing process equipment, the research and development device comprises a frame body, a transfer printing mechanism for transferring a pattern on a transfer printing film to a target material, and a cooling assembly for cooling the transferred target material, the roller is rotationally arranged on the frame body and is rolled on a target material and a transfer printing film; the water inlet pipe is used for discharging cooling water into the cooling roller; and the drainage pipe is used for discharging the cooling water in the cooling roller. According to the transfer printing device, patterns on a transfer printing film are transferred to a target material through the transfer printing mechanism, then the transferred target material is rolled through the cooling roller, cooling water is continuously discharged into the cooling roller through the water inlet pipe, and therefore heat on the transferred target material is absorbed and finally discharged through the water discharging pipe; the probability of deformation of the pattern on the target material due to long-time heating is reduced, and finally the stability of the product quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of thermal transfer process equipment, and in particular to a device for developing a cross-section color or spot color thermal transfer process. Background Art

[0002] Traditional thermal transfer technologies mainly include lithography, gravure printing, and screen printing. Lithography uses a photosensitive plate to create an image and then transfers the image to the target material using a heated roller. In gravure, an image is formed on a metal plate through engraving or etching, and then transferred to the target material by filling it with ink and heating the roller. Screen printing uses a screen to directly print ink onto the target material, which is then cured by heating to form the image.

[0003] Currently, traditional thermal transfer technology suffers from common problems such as poor color reproduction, low resolution, low production efficiency, high platemaking costs, and poor adaptability. Furthermore, traditional methods often struggle to achieve ideal transfer results for complex multi-color patterns, resulting in unstable product quality and increased production costs.

[0004] Therefore, a new thermal transfer technology has emerged. The pattern is pre-printed on the surface of the transfer film, and then the target material is moved by a conveyor belt. The transfer film is pressed against the target material by a hot pressing roller. The hot pressing roller is heated and pressurized to achieve the rapid and accurate transfer of the pattern on the transfer film to the target material, thereby achieving thermal transfer of the pattern.

[0005] However, prolonged high temperature can easily cause the pattern on the target material to deform due to heat, ultimately leading to unstable product quality. Utility Model Content

[0006] In order to improve the stability of product quality, the present application provides a research and development device for a cross-section color or spot color thermal transfer process.

[0007] This application provides a device for developing a cross-section color or spot color thermal transfer process, which adopts the following technical solutions:

[0008] A device for developing a cross-section color or spot color thermal transfer process includes a frame, a transfer mechanism for transferring a pattern on a transfer film to a target material, and a cooling component for cooling the transferred target material. The cooling component includes:

[0009] A cooling roller is rotatably mounted on the frame and rolls onto the target material and the transfer film, and the cooling roller rotates as the target material moves;

[0010] A water inlet pipe, which is arranged on the frame and is used to discharge cooling water into the cooling roller;

[0011] A drain pipe is arranged on the frame and is used to drain the cooling water in the cooling roller.

[0012] By adopting the above technical solution, the transfer mechanism places the transfer film tightly against the target material and transfers the pattern on the transfer film to the target material. The transferred target material is then rolled by a cooling roller, and cooling water is continuously discharged into the cooling roller through a water inlet pipe to absorb the heat on the transferred target material, which is finally discharged through a drain pipe, thereby lowering the temperature value of the target material and reducing the probability of deformation of the pattern on the target material due to prolonged heat, thereby ultimately improving the stability of product quality.

[0013] Furthermore, the water inlet pipe passes through the cooling roller, and a plurality of water inlet holes are provided on the side wall of the water inlet pipe near the middle of the cooling roller for cooling water to enter the cooling roller from the water inlet pipe. Cooling water is introduced into the water inlet pipe at both ends of the water inlet pipe and enters the cooling roller from the water inlet holes. Two groups of drainage pipes are arranged on the outer side wall of the water inlet pipe and are rotatably connected to the two end surfaces of the cooling roller. The two groups of drainage pipes are used to discharge the cooling water at both ends of the cooling roller.

[0014] By adopting the above technical solution, when in use, cooling water is discharged into the interior of the cooling roller from both ends of the water inlet pipe. When the cooling roller rolls with the target material, the heat on the target material is absorbed by the cooling water, thereby causing the temperature of the target material to drop rapidly. The cooling water after absorbing the heat flows into two sets of drainage pipes from the opposite ends of the cooling roller and is finally discharged from the cooling roller.

[0015] Furthermore, a sealing sleeve is provided on the water inlet pipe, and the sealing sleeve is coaxially arranged on the water inlet pipe and located inside the cooling roller. The sealing sleeve is used to reduce the cooling water flow space inside the cooling roller.

[0016] By adopting the above technical solution, the sealing sleeve is used to reduce the cooling water flow space in the cooling roller, thereby increasing the flow speed of the cooling water in the cooling roller, so as to quickly remove the absorbed heat; at the same time, the sealing sleeve is hollow inside, so as to reduce the weight of the cooling roller.

[0017] Furthermore, an auxiliary component for assisting the target material in cooling is provided on the outside of the cooling roller, and the auxiliary component includes:

[0018] An air cooler, which is arranged on the frame and is used to blow out cold air;

[0019] An air guide frame is arranged on the frame, and the air guide frame and the surface of the cooling roller form a cooling air duct for air to pass through. The cooling air duct is used to guide the cold air blown out by the air cooler to the contact point between the cooling roller and the target material.

[0020] By adopting the above technical solution, the cooling air duct guides the cold air blown out by the air cooler to the contact point between the cooling roller and the target material. Through the combined action of the cold air and the cooling roller, the temperature of the target material is quickly reduced to the specified temperature.

[0021] Furthermore, the transfer mechanism includes:

[0022] A conveyor belt, wherein the conveyor belt is used to move the target material;

[0023] A transfer film reel, which is arranged on the frame and used to store unused transfer films;

[0024] a heating roller, the heating roller being arranged on the frame and used for hot pressing the transfer film onto the target material;

[0025] A controller is used to control the temperature and pressure of the heating roller.

[0026] By adopting the above technical solution, the conveyor belt drives the target material to move, the transfer film reel unwinds the transfer film and places it close to the target material, and then the transfer film is pressed onto the target material by the heating roller. At the same time, the controller controls the temperature and pressure of the heating roller to transfer the pattern on the transfer film to the target material.

[0027] Furthermore, a preheating roller is provided on the side of the heating roller away from the cooling roller, and the preheating roller is used to preheat the target material and increase the initial temperature value of the target material when it enters the heating roller.

[0028] By adopting the above technical solution, the preheating roller preheats the target material, thereby increasing the initial temperature of the target material when it enters the heating roller, thereby facilitating the temperature of the target material to quickly reach the specified temperature, thereby improving the stability of the transfer.

[0029] Furthermore, the frame is provided with a tensioning assembly for maintaining the tension of the transfer film, and the tensioning assembly includes:

[0030] A sliding block, wherein the sliding block is slidingly arranged on the frame;

[0031] An adjusting rod, the adjusting rod being rotatably mounted on the sliding block and being in rotational contact with the surface of the transfer film;

[0032] A compression spring is provided on the frame and is used to push the sliding block to slide in a direction to tighten the transfer film.

[0033] By adopting the above technical solution, when the tension of the transfer film decreases, the compression spring stretches and pushes the sliding block to slide, pushing the transfer film to move through the adjusting rod, thereby increasing the tension of the transfer film; when the tension of the transfer film increases, the transfer film is pressed against the adjusting rod, thereby pushing the sliding block to slide and compressing the compression spring, thereby reducing the tension of the transfer film, so that the tension of the transfer film is always maintained within a certain range.

[0034] Furthermore, the frame is provided with a protection component for preventing the transfer film from being damaged due to excessive tension of the transfer film, and the protection component includes:

[0035] A sensor is provided on the frame and is located on a side of the compression spring away from the sliding block, and is used to detect the position of the sliding block;

[0036] The alarm is arranged on the frame and is electrically connected to the sensor. When the distance between the sensor and the sliding block is less than a set value, the alarm is activated and an alarm is sounded.

[0037] By adopting the above technical solution, when the distance between the sensor and the sliding block is less than the set value, the sensor activates the alarm to sound an alarm, which is convenient for staff to handle and prevent the transfer film from being damaged due to excessive tension.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] 1. The target material is moved by the conveyor belt, and the transfer film reel releases the transfer film and adheres it tightly to the target material. The transfer film is then hot-pressed onto the target material by the heating roller to transfer the pattern on the transfer film to the target material. The transferred target material is then rolled by the cooling roller, and cooling water is continuously discharged into the cooling roller through the water inlet pipe to absorb the heat from the transferred target material. The heat is finally discharged through the drain pipe, thereby reducing the temperature of the target material and the probability of deformation of the pattern on the target material due to long-term heat, thereby improving the stability of product quality.

[0040] 2. The target material is preheated by the preheating roller, and then the heating roller presses the transfer film onto the target material. When the transferred target material enters the cooling roller, the cooling air duct guides the cold air blown by the air cooler to the contact point between the cooling roller and the target material. The cold air and the cooling roller work together to quickly reduce the temperature of the target material to the specified temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 Schematic diagram of the structure of the research and development device of Example 1 of the present application;

[0042] Figure 2This is a schematic diagram of the structure of a portion of the R&D device of Example 1 of the present application, which mainly shows the tensioning component and the protection component;

[0043] Figure 3 Schematic diagram of the cooling assembly structure of Example 1 of the present application;

[0044] Figure 4 yes Figure 3 Schematic cross-section of the middle AA;

[0045] Figure 5 Schematic diagram of the structure of the research and development device of Example 2 of the present application;

[0046] Figure 6 yes Figure 5 Schematic cross-section of the BB.

[0047] Figure numerals: 1. frame; 2. transfer mechanism; 21. transmission belt; 22. transfer film reel; 23. heating roller; 3. tensioning assembly; 31. sliding block; 32. adjusting rod; 33. compression spring; 4. protection assembly; 41. sensor; 42. alarm; 5. cooling assembly; 51. cooling roller; 52. water inlet pipe; 521. water inlet hole; 53. drain pipe; 54. sealing sleeve; 6. preheating roller; 7. auxiliary assembly; 71. air cooler; 72. air guide frame; 73. cooling air duct. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1-6 This application is described in further detail.

[0049] The embodiment of the present application discloses a device for developing a cross-section color or spot color thermal transfer process.

[0050] Example 1

[0051] Reference Figure 1 A device for developing a cross-section color or spot color thermal transfer process includes a frame 1, a transfer mechanism 2 for transferring a pattern on a transfer film to a target material is provided on the frame 1, and a cooling component 5 for cooling the transferred target material is provided on the frame 1.

[0052] Reference Figure 1The transfer mechanism 2 includes a conveyor belt 21, a transfer film reel 22, a heating roller 23 and a controller. The conveyor belt 21 is fixedly mounted on the frame 1. The conveyor belt 21 is used to drive the target material to move, thereby ensuring that the target material moves smoothly during the transfer process; the transfer film reel 22 is rotatably mounted on the frame 1, and the transfer film reel 22 is located directly above the transmission. The transfer film reel 22 is used to store unused transfer film. A drive motor is fixedly mounted on the frame 1. The drive motor is used to drive the transfer film reel 22 to rotate, ensuring that the transfer film is smoothly unfolded, thereby making the transfer film close to the target material; the heating roller 23 is rotatably mounted on the frame 1, and the heating roller 23 is used to press the transfer film tightly against the target material. On the target material, the heating roller 23 is made of road alloy, and an electric heating element is fixedly installed inside the heating roller 23, so as to evenly heat the heating roller 23, and then the pattern on the transfer film is hot-pressed onto the target material by the method of hot pressing; the controller is fixedly installed on the frame 1, and the controller is used to coordinate the work of each component, mainly including controlling the heating temperature of the heating roller 23, the pressure of the heating roller 23 on the transfer film and the speed of the conveyor belt 21; the temperature of the heating roller 23 in this embodiment is usually 180°C-220°C, the pressure of the heating roller 23 is usually 0.5MPa-1.0MPa, and the speed of the conveyor belt is usually 1m / min-5m / min.

[0053] Reference Figure 1 and Figure 2 The frame 1 is provided with a tensioning assembly 3 for maintaining the tension of the transfer film. The tensioning assembly 3 includes a sliding block 31, an adjusting rod 32 and a compression spring 33. The sliding block 31 is slidingly arranged on the frame 1 in a direction perpendicular to the transfer film, and the adjusting rod 32 is rotatably mounted on the sliding block 31, and the adjusting rod 32 is in rotational contact with the surface of the transfer film; the compression spring 33 is fixedly mounted on the frame 1 and is used to push the sliding block 31 to slide in the direction of tightening the transfer film; when the tension of the transfer film decreases, the compression spring 33 extends and pushes the sliding block 31 to slide, pushing the transfer film to move through the adjusting rod 32, thereby increasing the tension of the transfer film; when the tension of the transfer film increases, the transfer film is pressed against the adjusting rod 32, thereby pushing the sliding block 31 to slide and compressing the compression spring 33, thereby reducing the tension of the transfer film, so that the tension of the transfer film is always maintained within a certain range.

[0054] Reference Figure 1 and Figure 2A protective component 4 is provided on the frame 1 to prevent the transfer film from being damaged due to excessive tension. The protective component 4 includes a sensor 41 and an alarm 42. The sensor 41 is fixedly mounted on the frame 1. The sensor 41 is located on the side of the compression spring 33 away from the sliding block 31. The sensor 41 is used to detect the sliding position; the alarm 42 is fixedly mounted on the frame 1. The alarm 42 is electrically connected to the sensor 41. The alarm 42 is used to sound an alarm. When the distance between the sensor 41 and the sliding block 31 is less than the set value, the sensor 41 activates the alarm 42 to sound an alarm, which is convenient for the staff to handle and prevent the transfer film from being damaged due to excessive tension.

[0055] Reference Figure 3 and Figure 4 The cooling assembly 5 includes a cooling roller 51, a water inlet pipe 52 and a drain pipe 53. The cooling roller 51 is rotatably mounted on the frame 1. The cooling roller 51 rolls on the target material and the transfer film. The cooling roller 51 rotates with the movement of the target material. The interior of the cooling roller 51 is hollow. The water inlet pipe 52 is fixedly mounted on the frame 1. The water inlet pipe 52 is used to discharge cooling water into the cooling roller 51. The water inlet pipe 52 passes through the cooling roller 51. There are multiple groups of cooling water on the side wall of the water inlet pipe 52 near the middle of the cooling roller 51 for entering the cooling roller 51 from the water inlet pipe 52. The water inlet hole 521, cooling water is introduced into the water inlet pipe 52 at both ends of the water inlet pipe 52; the drain pipe 53 is fixedly installed on the frame 1, and the drain pipe 53 is used to discharge the cooling water in the cooling roller 51. There are two groups of drain pipes 53, and the two groups of drain pipes 53 are respectively located at the opposite ends of the cooling roller 51. The drain pipe 53 is fixedly installed on the outer side wall of the water inlet pipe 52, and the drain pipe 53 is rotatably connected to the end face of the cooling roller 51. The drain pipe 53 is communicated with the inside of the cooling roller 51, and the drain pipe 53 is used to discharge the cooling water inside the cooling roller 51.

[0056] Reference Figure 3 and Figure 4 When in use, cooling water is discharged into the interior of the cooling roller 51 from both ends of the water inlet pipe 52. When the cooling roller 51 rolls with the target material, the heat on the target material is absorbed by the cooling water, thereby causing the temperature of the target material to drop rapidly, thereby reducing the deformation of the pattern on the target material due to continuous high temperature. The cooling water after absorbing heat flows into two sets of drainage pipes 53 from the opposite ends of the cooling roller 51, and is finally discharged from the cooling roller 51.

[0057] Reference Figure 3 and Figure 4A sealing sleeve 54 is fixedly installed on the water inlet pipe 52. The sealing sleeve 54 is coaxially fixed on the water inlet pipe 52. The sealing sleeve 54 is located in the cooling roller 51. There are two groups of sealing sleeves 54. The two groups of sealing sleeves 54 are respectively located on both sides of the water inlet hole 521. The sealing sleeve 54 is used to reduce the cooling water flow space in the cooling roller 51, thereby increasing the flow rate of the cooling water in the cooling roller 51, so as to quickly remove the absorbed heat; at the same time, the sealing sleeve 54 is hollow inside, so as to reduce the weight of the cooling roller 51.

[0058] The working principle of Example 1 of the present application is as follows:

[0059] The conveyor belt 21 drives the target material to move, the transfer film reel 22 releases the transfer film and presses it tightly onto the target material, and then the transfer film is hot-pressed onto the target material through the heating roller 23 to transfer the pattern on the transfer film to the target material, and then the transferred target material is rolled by the cooling roller 51, and cooling water is continuously discharged into the cooling roller 51 through the water inlet pipe 52 to absorb the heat on the transferred target material, and finally discharged through the drain pipe 53, thereby reducing the temperature value of the target material and the probability of deformation of the pattern on the target material due to long-term heat, thereby improving the stability of product quality.

[0060] Example 2

[0061] Reference Figure 5 The difference between this embodiment and embodiment 1 is that a preheating roller 6 is provided on the side of the heating roller 23 away from the cooling roller 51, and the preheating roller 6 is rotatably mounted on the frame 1. A heating element is provided inside the preheating roller 6 to uniformly heat the preheating roller 6. The temperature of the preheating roller 6 is lower than that of the heating roller 23. The preheating roller 6 is used to preheat the target material, thereby increasing the initial temperature value of the target material when it enters the heating roller 23, thereby facilitating the temperature of the target material to quickly reach the specified temperature, thereby facilitating the accurate transfer of the pattern on the transfer film to the target material.

[0062] Reference Figure 5 and Figure 6 An auxiliary component 7 for assisting the target material in cooling is provided on the outside of the cooling roller 51. The auxiliary component 7 includes an air cooler 71 and an air guide frame 72. The air cooler 71 is fixedly mounted on the frame 1, and is used to blow out cold air; the air guide frame 72 is fixedly mounted on the frame 1, and the air guide frame 72 and the surface of the cooling roller 51 form a cooling air duct 73 for gas to pass through. The cold air blown out by the air cooler 71 enters the cooling air duct 73, and then guides the cold air to the contact point between the cooling roller 51 and the target material, so as to accelerate the cooling speed of the target material.

[0063] The working principle of Example 2 of the present application is as follows:

[0064] The target material is preheated by the preheating roller 6, and then the heating roller 23 hot presses the transfer film onto the target material. When the transferred target material enters the cooling roller 51, the cooling air duct 73 guides the cold air blown out by the cold air blower 71 to the contact point between the cooling roller 51 and the target material. The cold air and the cooling roller 51 work together to quickly reduce the temperature of the target material to the specified temperature.

[0065] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A device for developing a cross-section color or spot color thermal transfer process, characterized by: The invention comprises a frame (1), the frame (1) being provided with a transfer mechanism (2) for transferring a pattern on a transfer film to a target material, the frame (1) being provided with a cooling component (5) for cooling the transferred target material, the cooling component (5) comprising: A cooling roller (51), the cooling roller (51) is rotatably mounted on the frame (1) and rolls onto the target material and the transfer film, and the cooling roller (51) rotates as the target material moves; a water inlet pipe (52), the water inlet pipe (52) being arranged on the frame (1) and being used to discharge cooling water into the cooling roller (51); A drain pipe (53) is provided on the frame (1) and is used to drain cooling water from the cooling roller (51).

2. The device for developing a cross-section color or spot color thermal transfer process according to claim 1, characterized in that: The water inlet pipe (52) passes through the cooling roller (51), and a plurality of water inlet holes (521) for cooling water to enter the cooling roller (51) from the water inlet pipe (52) are provided on the side wall of the water inlet pipe (52) near the middle of the cooling roller (51). Cooling water is introduced into the water inlet pipe (52) at both ends of the water inlet pipe (52) and enters the cooling roller (51) from the water inlet holes (521). Two groups of drainage pipes (53) are provided on the outer wall of the water inlet pipe (52) and are rotatably connected to the two end surfaces of the cooling roller (51). The two groups of drainage pipes (53) are used to discharge the cooling water from the two ends of the cooling roller (51).

3. The device for developing a cross-section color or spot color thermal transfer process according to claim 2, characterized in that: A sealing sleeve (54) is provided on the water inlet pipe (52). The sealing sleeve (54) is coaxially arranged on the water inlet pipe (52) and located inside the cooling roller (51). The sealing sleeve (54) is used to reduce the cooling water flow space inside the cooling roller (51).

4. The device for developing a cross-section color or spot color thermal transfer process according to claim 1, characterized in that: An auxiliary component (7) for assisting the target material in cooling is provided on the outside of the cooling roller (51), and the auxiliary component (7) comprises: A cooling air machine (71), the cooling air machine (71) is arranged on the frame (1) and is used to blow out cold air; An air guide frame (72), the air guide frame (72) is arranged on the frame (1), and the air guide frame (72) and the surface of the cooling roller (51) form a cooling air duct (73) for air to pass through, and the cooling air duct (73) is used to guide the cold air blown out by the air cooler (71) to the contact point between the cooling roller (51) and the target material.

5. The device for developing a cross-section color or spot color thermal transfer process according to claim 1, characterized in that: The transfer mechanism (2) comprises: A conveyor belt (21), wherein the conveyor belt (21) is used to drive the target material to move; A transfer film reel (22), the transfer film reel (22) being arranged on the frame (1) and used for storing unused transfer films; a heating roller (23), the heating roller (23) being arranged on the frame (1) and used for hot pressing the transfer film onto the target material; A controller is used to control the temperature and pressure of the heating roller (23).

6. The device for developing a cross-section color or spot color thermal transfer process according to claim 5, characterized in that: A preheating roller (6) is provided on the side of the heating roller (23) away from the cooling roller (51), and the preheating roller (6) is used to preheat the target material and increase the initial temperature value of the target material when it enters the heating roller (23).

7. The device for developing a cross-section color or spot color thermal transfer process according to claim 5, characterized in that: The frame (1) is provided with a tensioning assembly (3) for maintaining the tension of the transfer film, and the tensioning assembly (3) comprises: A sliding block (31), wherein the sliding block (31) is slidingly arranged on the frame (1); An adjusting rod (32), the adjusting rod (32) being rotatably mounted on the sliding block (31), the adjusting rod (32) being in rotational contact with the surface of the transfer film; A compression spring (33) is provided on the frame (1) and is used to push the sliding block (31) to slide in a direction that tightens the transfer film.

8. The device for developing a cross-section color or spot color thermal transfer process according to claim 7, characterized in that: The frame (1) is provided with a protective component (4) for preventing the transfer film from being damaged due to excessive tension of the transfer film. The protective component (4) comprises: A sensor (41), the sensor (41) being arranged on the frame (1) and located on a side of the compression spring (33) away from the sliding block (31), the sensor (41) being used to detect the position of the sliding block (31); An alarm (42) is provided on the frame (1) and is electrically connected to the sensor (41). When the distance between the sensor (41) and the sliding block (31) is less than a set value, the alarm (42) is activated and an alarm is sounded.

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