Preparation method and preparation equipment of heat transfer printing hot stamping paper

Abstract

The invention relates to the technical field of heat transfer printing hot-stamping paper preparation, and discloses a heat transfer printing hot-stamping paper preparation method and equipment, and the heat transfer printing hot-stamping paper preparation method comprises the following steps: selecting paper with flat surface, high strength and moderate water absorption; s2, feeding materials required by the preparation of the coating material into a stirring barrel for mixing and stirring, and adding a main machine, a solvent and a dye in the stirring process; s3, performing impurity removal and cleaning on the paper, and then performing deacidification treatment; and S4, a coating roller coating process and a blade coating process are selected for coating operation, and the coating thickness is controlled in the coating process. The device is reasonable in design and easy and convenient to operate, the preparation efficiency and the preparation quality of the heat transfer printing hot stamping paper can be effectively improved, meanwhile, the uniformity of the coating thickness is guaranteed, the phenomenon that the paper is wrinkled in the coating operation process can be avoided, and linkage between procedures can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal transfer paper preparation, and particularly to a method for preparing thermal transfer paper and its preparation equipment. Background Art

[0002] In the field of thermal transfer paper preparation, there are a series of problems to be solved in the past technologies, which limit the product quality, production efficiency and equipment versatility.

[0003] Traditional thermal transfer paper preparation equipment has obvious defects in the paper conveying link. When the paper enters the equipment for subsequent processing, there is a lack of effective support buffer and precise guiding mechanism, resulting in the paper being extremely prone to wrinkles during the conveying process, seriously affecting the flatness and integrity of the transfer paper, and further having a negative impact on the clarity and accuracy of the subsequent thermal transfer pattern. Moreover, the internal structure of the equipment is complex. When it is necessary to repair and maintain the internal components, the operation is extremely inconvenient, often consuming a large amount of time and labor costs, resulting in a long equipment downtime and reduced production efficiency.

[0004] In the coating link, the coating uniformity of the existing technology is poor. It is difficult to ensure that the coating material is evenly applied on the paper, and there are often phenomena such as uneven coating thickness, local accumulation or excessive thinness, resulting in inconsistent colors of the patterns after thermal transfer, seriously affecting the visual effect and quality of the product. At the same time, the existing equipment has poor adaptability to the paper thickness and type, and it is impossible to conveniently adjust the distance between the coating components and the paper, as well as the distance between the coating rollers according to different paper thicknesses and diverse paper coating requirements, greatly limiting the applicable range of the equipment and making it difficult to meet the diversified needs of the market.

[0005] In addition, in the whole preparation process, the connection between processes is not efficient enough. The drying and curing treatment efficiency of the paper after coating is low, and it fails to achieve close coordination with the front and back unwinding and rewinding processes, resulting in an extended overall preparation cycle and difficult to improve production efficiency.

[0006] Just under such a background, we propose a method for preparing thermal transfer paper and its preparation equipment to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to solve the shortcomings of the existing technology, and to propose a method for preparing thermal transfer paper and its preparation equipment.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] S1: Select papers with a flat surface, high strength and moderate water absorption;

[0010] S2: Put the required materials for the coating material into the mixing barrel for mixing and stirring, and add the main machine, solvent and dye during the stirring process;

[0011] S3: Remove impurities and clean the paper, and then perform deacidification treatment;

[0012] S4: Select the coating roller coating and doctor blade coating processes for coating operations, and control the coating thickness during the coating process;

[0013] S5: The coated paper enters the drying equipment for drying and curing treatment;

[0014] S6: Perform surface calendering and slitting and packaging on the paper after drying and curing treatment.

[0015] By adopting the above scheme, the preparation of thermal transfer stamping paper can be carried out.

[0016] A thermal transfer stamping paper preparation device, including a support box, a support frame, a top plate, a plurality of liquid storage tanks, a mixing barrel, a hollow shaft, a stirring assembly, a driving assembly, a material box, a lifting and adjusting assembly, a coating assembly, a scraping assembly, a spacing adjusting assembly, a guide roller I, a guide roller II, a support and buffer assembly, a winding roller, an unwinding roller and a drying assembly;

[0017] The support frame is fixedly installed on the top of the support box, the top plate is fixedly installed on the top of the support frame, the mixing barrel is arranged in the support frame and is rotatably installed with a support plate fixedly connected to the inner side wall of the support frame, the hollow shaft is rotatably installed in the top plate and the mixing barrel, the stirring assembly is arranged on the mixing barrel and the hollow shaft, the driving assembly is arranged on the side wall of the support frame and is connected to the mixing barrel, the lifting and adjusting assembly is arranged on the inner side wall of the support frame, the material box is fixedly installed on the lifting and adjusting assembly, the top of the material box is fixedly installed with a vertical pipe in movable sealing contact with the inner wall of the hollow shaft, the coating assembly and the scraping assembly are both arranged at the bottom of the material box and are arranged in an interleaved manner, the spacing adjusting assembly is arranged at the bottom of the material box and is connected to the coating assembly, a plurality of liquid storage tanks are all fixedly installed on the top of the top plate, a plurality of liquid storage tanks are all fixedly installed with feeding pipes extending into the mixing barrel, and control valves are fixedly installed on the feeding pipes, a feeding pipe is fixedly installed on the top plate, the top end of the feeding pipe is fixedly installed with a hopper, and the feeding pipe is sealingly rotatably installed outside the hollow shaft, a plurality of discharge holes are opened on the hollow shaft, and a plurality of feeding holes are opened at the position of the hollow shaft close to the inner wall of the bottom of the mixing barrel;

[0018] The drying component is arranged on the bottom inner wall of the support box, and a guide opening for paper to enter the support box is opened on the support box. The winding roller and the unwinding roller are respectively arranged on the left side and one end of the top side of the support box. A feed opening is opened on one side of the support frame, and a guide roller 1 is rotatably installed in the feed opening. The support buffer component is arranged in the feed opening and connected to the guide roller 1. The side and the front side of the support box close to the winding roller are both opened, and the guide roller 2 is rotatably installed in the support box close to the winding roller.

[0019] Preferably, the stirring assembly comprises a plurality of stirring rods and a plurality of shifting rods, the plurality of stirring rods are radially fixedly mounted on the hollow shaft, and a plurality of shifting rods staggered with the stirring rods are fixedly mounted on the inner side wall of the mixing barrel.

[0020] Preferably, the driving assembly includes a driving motor, a driving gear, a toothed disk, a belt one and two upper pulleys. The driving motor is fixedly mounted on the side wall of the support frame, a driving gear is fixedly sleeved on the output shaft of the driving motor, a toothed disk is fixedly mounted on the outer side of the mixing barrel, the driving gear is meshed with the toothed disk, upper pulleys are fixedly sleeved on the hollow shaft and the output shaft of the driving motor, and the two upper pulleys are transmission-connected with the same belt one.

[0021] Preferably, the coating assembly includes two U-shaped plates, two coating rollers and two telescopic hoses. Two U-shaped plates are slidably installed at the bottom of the material box. Coating rollers are rotatably installed on the two U-shaped plates. Telescopic hoses are sealed and rotatably connected to the two coating rollers, and the two telescopic hoses are connected to the material box.

[0022] Preferably, the scraping assembly includes an adjusting motor 2, a rotating pin, two coating scrapers, two lower pulleys and a belt 2. The adjusting motor 2 is fixedly installed on the bottom of the material box, and a rotating pin is rotatably installed on the bottom of the material box. The coating scraper is fixedly installed on the rotating pin and the output shaft of the adjusting motor 2. The rotating pin and the output shaft of the adjusting motor 2 are fixedly sleeved with lower pulleys, and the two lower pulleys are transmission-connected with the same belt 2.

[0023] Preferably, the lifting and adjusting assembly includes two electric cylinders and two lifting plates. The electric cylinders are fixedly installed on the inner walls of both sides of the support frame, and the working ends of the two electric cylinders are fixedly installed with lifting plates. The two lifting plates are respectively fixedly installed on both sides of the material box.

[0024] Preferably, the spacing adjustment component includes two support bars, a bidirectional lead screw, a first adjustment motor, and a cross bar. Two support bars arranged in parallel are fixedly installed at the bottom of the material box. A same bidirectional lead screw is rotatably installed on the two support bars. The bidirectional lead screw is threadedly connected to the two U-shaped plates. A first adjustment motor is fixedly installed on one of the support bars. The output shaft of the first adjustment motor is axially fixedly connected to the bidirectional lead screw. A same cross bar is fixedly installed on the two support bars, and the cross bar is slidably connected to the two U-shaped plates.

[0025] Preferably, the support and buffer component includes two sliders, four guide plates, two top push springs, and two guide grooves. Guide grooves are formed in the inner walls on the front and rear sides of the feed inlet. Sliders are slidably installed in the two guide grooves. A first guide roller is rotatably installed on one side of the two sliders close to each other. Top push springs are fixedly installed on the top sides of the two sliders. The top ends of the two top push springs are respectively fixedly connected to the top inner walls of the corresponding guide grooves. Two guide plates are fixedly installed in each of the two guide grooves. The two guide plates located in the same guide groove are slidably installed on the same slider.

[0026] Preferably, the drying component includes a dryer and a second electric cylinder. The dryer is slidably installed vertically on the inner wall of the bottom of the support box. The dryer is fixedly installed with a second electric cylinder, and the working end of the second electric cylinder is fixedly connected to the bottom of the support box.

[0027] Preferably, a strip-shaped plate is slidably installed in the opening on the front side of the support box, and an opening and closing door is arranged on the front side of the support frame.

[0028] Compared with the prior art, the present invention provides a method and a preparation device for heat transfer ironing paper, which have the following beneficial effects:

[0029] (1) By providing the support and buffer component, it plays a role in supporting and buffering the paper entering the support box, effectively preventing the paper from wrinkling during the process of entering the support box. By providing the first guide roller and the second guide roller, it plays a role in guiding and conveying the paper, enabling the paper to smoothly enter the support box. By providing the strip-shaped plate and the opening and closing door, it is convenient to repair and maintain the internal structure of the support box;

[0030] (2) By the cooperation of the arranged stirring component, driving component, lifting and adjusting component, coating component, scraping component and spacing adjusting component, the coating material can be evenly applied on the paper. Meanwhile, the spacing between the coating component and the paper can be adjusted according to actual needs, so as to meet the coating requirements of papers with different thicknesses. And the spacing between the two coating rollers can be adjusted as needed to meet the coating requirements of different types of papers, effectively improving the practicability of the thermal transfer hot paper preparation equipment. And by the arranged drying component, the coated paper can be dried and cured, and after curing, it is stored through the winding roller, thus further improving the preparation efficiency of the thermal transfer hot paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of a thermal transfer hot paper preparation device proposed by the present invention;

[0032] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0033] Figure 3 is Figure 1 a schematic cross-sectional structural diagram;

[0034] Figure 4 is Figure 3 a schematic front view structural diagram;

[0035] Figure 5 is a schematic structural diagram of the coating component, scraping component and spacing adjusting component parts proposed by the present invention;

[0036] Figure 6 is a schematic structural diagram of the dryer and the second electric cylinder parts proposed by the present invention;

[0037] Figure 7 is a schematic structural diagram of the first guide roller, guide plate, slider and push spring parts proposed by the present invention;

[0038] Figure 8 is a schematic structural diagram of the support box, guide port and the openings on the left and front sides of the support box parts proposed by the present invention;

[0039] In the figure: 1. Support box; 101. Guide port; 102. Strip plate; 11. Support frame; 111. Opening and closing door; 12. Top plate; 2. Mixing barrel; 201. Support plate; 21. Hollow shaft; 211. Stirring rod; 22. Feeding pipe; 221. Hopper; 3. Liquid storage tank; 31. Feed pipe; 32. Control valve; 4. Driving motor; 41. Driving gear; 42. Tooth disc; 43. Upper pulley; 44. Belt 1; 5. Material box; 51. Vertical pipe; 52. Electric cylinder 1; 6. Coating roller; 61. U-shaped plate; 62. Support bar; 63. Bidirectional lead screw; 64. Adjusting motor 1; 7. Coating scraper; 71. Adjusting motor 2; 72. Lower pulley; 73. Belt 2; 8. Dryer; 81. Electric cylinder 2; 9. Unwinding roller; 91. Rewinding roller; 92. Guide roller 1; 921. Slide block; 922. Guide plate; 923. Thrust spring; 93. Guide roller 2. Detailed implementation manner

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0041] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0042] Refer to Figure 1-8 , a thermal transfer paper preparation device, including the following steps:

[0043] S1: Select papers with a flat surface, high strength, and moderate water absorption;

[0044] S2: Put the materials required for the coating material into the mixing barrel for mixing and stirring, and add the main machine, solvent, and dye during the stirring process;

[0045] S3: Remove impurities and clean the paper, and then perform deacidification treatment;

[0046] S4: Select the coating roller coating and scraper coating processes for coating operations, and control the coating thickness during the coating process;

[0047] S5: The coated paper enters the drying equipment for drying and curing treatment;

[0048] S6: Perform surface calendering and slitting and packaging on the paper after drying and curing treatment.

[0049] A thermal transfer hot stamping paper preparation device, comprising a support box 1, a support frame 11, a top plate 12, a plurality of liquid storage tanks 3, a mixing barrel 2, a hollow shaft 21, a material box 5, a guide roller 1 92, a guide roller 2 93, a winding roller 91 and a unwinding roller 9;

[0050] The support frame 11 is fixedly mounted on the top of the support box 1, the top plate 12 is fixedly mounted on the top of the support frame 11, the mixing barrel 2 is arranged in the support frame 11 and is rotatably mounted with a support plate 201 that is fixedly connected to the inner wall of the support frame 11, the hollow shaft 21 is rotatably mounted in the top plate 12 and the mixing barrel 2, a plurality of stirring rods 211 are radially fixedly mounted on the hollow shaft 21, and a plurality of levers staggered with the stirring rods 211 are fixedly mounted on the inner wall of the mixing barrel 2, so that the material in the mixing barrel 2 can be stirred when the hollow shaft 21 and the mixing barrel 2 rotate;

[0051] A driving motor 4 is fixedly mounted on the side wall of the support frame 11, a driving gear 41 is fixedly sleeved on the output shaft of the driving motor 4, a toothed disc 42 is fixedly mounted on the outer side of the mixing barrel 2, the driving gear 41 is meshed with the toothed disc 42, an upper pulley 43 is fixedly sleeved on the hollow shaft 21 and the output shaft of the driving motor 4, and the two upper pulleys 43 are connected to the same belt 44 for transmission, which can control the hollow shaft 21 and the mixing barrel 2 to rotate in opposite directions, thereby greatly improving the mixing uniformity rate of the materials in the mixing barrel 2;

[0052] Electric cylinders 52 are fixedly mounted on the inner walls of both sides of the support frame 11, and lifting plates are fixedly mounted on the working ends of the two electric cylinders 52. The two lifting plates are fixedly mounted on both sides of the material box 5, respectively, and the distance between the coating roller 6 and the coating scraper 7 and the paper can be achieved by adjusting the height of the material box 5;

[0053] A vertical pipe 51 that is in active and sealed contact with the inner wall of the hollow shaft 21 is fixedly installed on the top of the material box 5, and two U-shaped plates 61 are slidably installed on the bottom of the material box 5. Coating rollers 6 are rotatably installed on the two U-shaped plates 61. Telescopic hoses are sealed and rotatably connected to the two coating rollers 6. The two telescopic hoses are connected to the material box 5, and can efficiently coat the thermal transfer paper. An adjusting motor 2 71 is fixedly installed on the bottom of the material box 5. A rotating pin is rotatably installed on the bottom of the material box 5. A coating scraper 7 is fixedly installed on the output shaft of the rotating pin and the adjusting motor 2 71. A lower pulley 72 is fixedly sleeved on the output shaft of the rotating pin and the adjusting motor 2 71. The two lower pulleys 72 are transmission-connected with the same belt 2 73, which can scrape and coat the coated thermal transfer paper, thereby effectively improving the coating uniformity of the coating.

[0054] Two support bars 62 arranged in parallel with each other are fixedly installed at the bottom of the material box 5. A same bidirectional lead screw 63 is rotatably installed on the two support bars 62. The bidirectional lead screw 63 is threadedly connected to the two U-shaped plates 61. An adjusting motor 64 is fixedly installed on one of the support bars 62. The output shaft of the adjusting motor 64 is axially fixedly connected to the bidirectional lead screw 63. A same cross bar is fixedly installed on the two support bars 62, and the cross bar is slidably connected to the two U-shaped plates 61, so that the distance between the two coating rollers 6 can be adjusted as required;

[0055] A plurality of liquid storage tanks 3 are all fixedly installed on the top of the top plate 12. A plurality of liquid storage tanks 3 are all fixedly installed with feeding pipes 31 extending into the mixing barrel 2, and control valves 32 are fixedly installed on the feeding pipes 31. A feeding pipe 22 is fixedly installed on the top plate 12. The top end of the feeding pipe 22 is fixedly installed with a hopper 221, and the feeding pipe 22 is hermetically and rotatably installed on the outside of the hollow shaft 21. A plurality of discharge holes are opened on the hollow shaft 21, and a plurality of feeding holes are opened at a position of the hollow shaft 21 close to the inner wall of the bottom of the mixing barrel 2, which is convenient for adding materials into the mixing barrel 2 through the hollow shaft 21. At the same time, it is convenient for the added materials to be quickly dispersed into the materials in the mixing barrel 2, and the arranged discharge holes are convenient for transporting the materials after stirring and processing into the material box 5 through the vertical pipe 51;

[0056] A dryer 8 is vertically and slidably installed on the inner wall of the bottom of the support box 1, and an electric cylinder 81 is fixedly installed on the dryer 8. The working end of the electric cylinder 81 is fixedly connected to the bottom of the support box 1, which can provide a drying effect for the heat transfer stamping paper that has passed through the support box 1 and been coated. A guiding port 101 for the paper to enter the support box 1 is opened on the support box 1, which is convenient for the coated paper to enter the support box 1 for drying and curing. The winding roller 91 and the unwinding roller 9 are respectively arranged at the left side and one end of the top side of the support box 1, which is convenient for unwinding and winding the paper. An inlet is opened on one side of the support frame 11, and a guiding roller 92 is rotatably installed in the inlet;

[0057] Guide grooves are formed in the inner walls on the front and rear sides of the feed inlet. Sliders 921 are slidably installed in both guide grooves. A first guide roller 92 is rotatably installed on the side where the two sliders 921 are close to each other. Top push springs 923 are fixedly installed on the top sides of the two sliders 921. The top ends of the two top push springs 923 are fixedly connected to the top inner walls of the corresponding guide grooves respectively. Two guide plates 922 are fixedly installed in both guide grooves. The two guide plates 922 located in the same guide groove are slidably installed on the same slider 921, which can provide support and buffering effects for the first guide roller 92, so that the paper unwound from the unwinding roller 9 can move stably along the top side of the support box 1. The side and the front side of the support box 1 close to the winding roller 91 are both open. And a second guide roller 93 is rotatably installed at a position in the support box 1 close to the winding roller 91, which can avoid the contact state between the paper and the dryer 8 during the drying and curing operation.

[0058] In this embodiment, a strip-shaped plate 102 is slidably installed in the opening on the front side of the support box 1. An opening and closing door 111 is arranged on the front side of the support frame 11, which is convenient for opening and closing the front opening of the support box 1, and at the same time is convenient for maintenance operations on the components in the support frame 11 and manual guiding operations of the paper.

[0059] In order to avoid the situation that the materials fed into the hollow shaft 21 through the hopper 221 and the feeding pipe 22 are directly conveyed into the material box 5, and at the same time avoid the situation that the materials accumulate in the hollow shaft 21 and cannot be discharged into the mixing barrel 2, a partition is fixedly installed in the hollow shaft 21. The partition is located between the discharge hole and the feed hole and is flush with the lowest point of the lowermost discharge hole.

[0060] Working principle: When in use, first connect the power supply. Then wind the paper to be processed around the unwinding roller 9. Open the support frame 11 through the opening and closing door 111, pass the paper to be processed through the lower part of the guide roller 92, the coating roller 6 and the coating blade 7, through the guide port 101, and then fix it on the winding roller 91 after passing through the support box 1. Feed the materials required for coating preparation into the hollow shaft 21 through the cooperation of the hopper 221 and the feeding pipe 22. These materials will be discharged into the mixing barrel 2 through the discharge holes on the hollow shaft 21. The additives and auxiliaries to be added are stored in the corresponding liquid storage tanks 3 respectively. When addition is required, control the feeding through the control valve 32. At the same time, the driving motor 4 controls the rotation of the mixing barrel 2 through the gear and the toothed disc 42, and controls the reverse rotation of the hollow shaft 21 through the cooperation of the upper belt pulley 43 and the first belt 44, so as to realize fast and uniform mixing and stirring operation with the cooperation of multiple stirring rods 211. After the coating material is prepared, control the winding roller 91 to wind the paper. At the same time, control the lifting plate to drive the material box 5 to move downward through the first electric cylinder 52, so that the coating roller 6 contacts the passing paper and realizes coating. The coating blade 7 will also approach the passing paper and scrape the thickness of the coating after coating by the coating roller 6, so as to ensure the uniformity of coating. The coating blade 7 can also achieve the adjustment effect through the cooperation of the adjustment motor, the lower belt pulley 72, the second belt 73 and the rotating pin, so as to further improve the uniformity of coating on the paper.

[0061] The coated paper enters the position above the dryer 8 in the support box 1 through the guide port 101, and then is guided through the cooperation of the second guide roller 93 when leaving the support box 1, which can ensure the stable transportation of the paper. The distance between the dryer 8 and the passing paper can be controlled through the second electric cylinder 81, so as to realize fast drying and curing according to the actual situation. After drying, the paper is wound by the winding roller 91, thus completing the preparation process of the whole thermal transfer hot stamping paper.

[0062] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

Claims

1. A thermal transfer paper preparation device, characterized in that: The following steps are involved: S1: Choose paper with smooth surface, high strength and moderate water absorption; S2: Put the materials required for coating material configuration into a mixing barrel for mixing and stirring, and add the host, solvent and dye during the stirring process; S3: remove impurities and clean the paper, and then deacidify it; S4: Select coating roller coating and doctor blade coating process for coating operation, and control coating thickness during coating process; S5: The coated paper enters the drying equipment for drying and curing; S6: Surface calendering, slitting and packaging of the paper after drying and curing.

2. A thermal transfer paper preparation device, characterized in that: It comprises a support box (1), a support frame (11), a top plate (12), a plurality of liquid storage tanks (3), a mixing barrel (2), a hollow shaft (21), a stirring assembly, a driving assembly, a material box (5), a lifting and lowering adjustment assembly, a coating assembly, a scraping assembly, a spacing adjustment assembly, a guide roller 1 (92), a guide roller 2 (93), a support buffer assembly, a winding roller (91), an unwinding roller (9) and a drying assembly; The support frame (11) is fixedly mounted on the top of the support box (1); the top plate (12) is fixedly mounted on the top of the support frame (11); the mixing barrel (2) is arranged in the support frame (11) and is rotatably mounted with a support plate (201) which is fixedly connected to the inner wall of the support frame (11); the hollow shaft (21) is rotatably mounted in the top plate (12) and the mixing barrel (2); the stirring assembly is arranged on the mixing barrel (2) and the hollow shaft (21); the driving assembly is arranged on the side wall of the support frame (11) and is connected to the mixing barrel (2); the lifting and adjusting assembly is arranged on the inner wall of the support frame (11); the material box (5) is fixedly mounted on the lifting and adjusting assembly; and a vertical pipe (201) which is in active sealing contact with the inner wall of the hollow shaft (21) is fixedly mounted on the top of the material box (5). 51), the coating assembly and the scraping assembly are both arranged at the bottom of the material box (5) and are arranged in a staggered manner, the spacing adjustment assembly is arranged at the bottom of the material box (5) and is connected to the coating assembly, a plurality of liquid storage tanks (3) are fixedly installed on the top of the top plate (12), the plurality of liquid storage tanks (3) are fixedly installed with a feed pipe (31) extending into the mixing barrel (2), and a control valve (32) is fixedly installed on the feed pipe (31), a feed pipe (22) is fixedly installed on the top plate (12), a hopper (221) is fixedly installed on the top of the feed pipe (22), and the feed pipe (22) is sealed and rotatably installed on the outside of the hollow shaft (21), a plurality of discharge holes are opened on the hollow shaft (21), and a plurality of feed holes are opened on the hollow shaft (21) near the bottom inner wall of the mixing barrel (2); The drying component is arranged on the bottom inner wall of the support box (1); the support box (1) is provided with a guide opening (101) for paper to enter the support box (1); the winding roller (91) and the unwinding roller (9) are respectively arranged on the left side and the top end of the support box (1); a feed opening is arranged on one side of the support frame (11), and a guide roller 1 (92) is rotatably installed in the feed opening; the support buffer component is arranged in the feed opening and connected to the guide roller 1 (92); the side and the front side of the support box (1) close to the winding roller (91) are both opened, and the guide roller 2 (93) is rotatably installed in the support box (1) close to the winding roller (91); A strip plate (102) is slidably installed in an opening located at the front side of the support box (1), and an opening and closing door (111) is arranged at the front side of the support frame (11).

3. The thermal transfer paper preparation device according to claim 2, characterized in that: The stirring assembly comprises a plurality of stirring rods (211) and a plurality of shifting rods; the plurality of stirring rods (211) are radially fixedly mounted on the hollow shaft (21); and a plurality of shifting rods staggered with the stirring rods (211) are fixedly mounted on the inner side wall of the mixing barrel (2).

4. The thermal transfer paper preparation device according to claim 2, characterized in that: The driving assembly comprises a driving motor (4), a driving gear (41), a toothed disc (42), a belt (44) and two upper pulleys (43); the driving motor (4) is fixedly mounted on the side wall of the support frame (11); the driving gear (41) is fixedly sleeved on the output shaft of the driving motor (4); the toothed disc (42) is fixedly mounted on the outer side of the mixing barrel (2); the driving gear (41) is meshed with the toothed disc (42); the upper pulleys (43) are fixedly sleeved on the hollow shaft (21) and the output shaft of the driving motor (4); and the two upper pulleys (43) are transmission-connected with the same belt (44).

5. The thermal transfer paper preparation device according to claim 2, characterized in that: The coating assembly comprises two U-shaped plates (61), two coating rollers (6) and two telescopic hoses. The two U-shaped plates (61) are slidably mounted on the bottom of the material box (5). The coating rollers (6) are rotatably mounted on the two U-shaped plates (61). The two coating rollers (6) are sealed and rotatably connected with telescopic hoses. The two telescopic hoses are communicated with the material box (5).

6. The thermal transfer paper preparation device according to claim 2, characterized in that: The scraping assembly comprises an adjusting motor 2 (71), a rotating pin, two coating scrapers (7), two lower pulleys (72) and a belt 2 (73); the adjusting motor 2 (71) is fixedly mounted on the bottom of the material box (5); the rotating pin is rotatably mounted on the bottom of the material box (5); the coating scraper (7) is fixedly mounted on the rotating pin and the output shaft of the adjusting motor 2 (71); the lower pulleys (72) are fixedly sleeved on the rotating pin and the output shaft of the adjusting motor 2 (71); and the two lower pulleys (72) are transmission-connected with the same belt 2 (73).

7. The thermal transfer paper preparation device according to claim 2, characterized in that: The lifting and adjusting components include two electric cylinders (52) and two lifting plates. The electric cylinders (52) are fixedly mounted on the inner walls of both sides of the support frame (11). The working ends of the two electric cylinders (52) are fixedly mounted with lifting plates. The two lifting plates are respectively fixedly mounted on both sides of the material box (5).

8. The thermal transfer paper preparation device according to claim 5, characterized in that: The spacing adjustment component comprises two support bars (62), a bidirectional screw rod (63), an adjustment motor (64) and a cross bar. Two support bars (62) arranged parallel to each other are fixedly installed at the bottom of the material box (5). The same bidirectional screw rod (63) is rotatably installed on the two support bars (62). The bidirectional screw rod (63) is threadedly connected to the two U-shaped plates (61). An adjustment motor (64) is fixedly installed on one of the support bars (62). The output shaft of the adjustment motor (64) is axially fixedly connected to the bidirectional screw rod (63). The same cross bar is fixedly installed on the two support bars (62), and the cross bar is slidably connected to the two U-shaped plates (61).

9. The thermal transfer paper preparation device according to claim 2, characterized in that: The support buffer assembly comprises two sliders (921), four guide plates (922), two push springs (923) and two guide grooves. The inner walls on both sides of the feed port are provided with guide grooves. The sliders (921) are slidably installed in the two guide grooves. The guide roller (92) is rotatably installed on the side where the two sliders (921) are close to each other. The top sides of the two sliders (921) are fixedly installed with push springs (923). The top ends of the two push springs (923) are respectively fixedly connected to the top inner walls of the corresponding guide grooves. Two guide plates (922) are fixedly installed in the two guide grooves. The two guide plates (922) located in the same guide groove are slidably installed on the same slider (921).

10. The thermal transfer paper preparation device according to claim 2, characterized in that: The drying assembly comprises a dryer (8) and a second electric cylinder (81); the dryer (8) is vertically slidably mounted on the inner wall of the bottom of the support box (1); the second electric cylinder (81) is fixedly mounted on the dryer (8); and the working end of the second electric cylinder (81) is fixedly connected to the bottom of the support box (1).

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