CN115722395B - Thermal transfer film production process and thermal transfer film thereof - Google Patents
Thermal transfer film production process and thermal transfer film thereof Download PDFInfo
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- CN115722395B CN115722395B CN202211577159.0A CN202211577159A CN115722395B CN 115722395 B CN115722395 B CN 115722395B CN 202211577159 A CN202211577159 A CN 202211577159A CN 115722395 B CN115722395 B CN 115722395B
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Abstract
The invention relates to the technical field of thermal transfer printing, in particular to a thermal transfer printing film production process and a thermal transfer printing film thereof, wherein the production process adopts a device comprising an unreeling device, a coating device, a drying box and a reeling device which are sequentially arranged along the transmission direction of a base film, the coating devices are provided with a plurality of groups, and the drying box is arranged between two adjacent coating devices; the coating device comprises a base, a feed box, a transmission roller and a coating roller, wherein the coating roller is rotatably arranged in the feed box, and the transmission roller is rotatably arranged at the upper end of the feed box. According to the invention, the coating scraper is used for synchronously scraping the positions, which are more and thicker in coating, of the coating roller, so that the uniformity and consistency of the thickness of the coating are ensured, meanwhile, the side baffles can prevent the coating layer from overflowing to two sides in the extrusion process to cause uneven width of the coating layer, and the uniformity and consistency of the width of the coating are ensured, so that the evenness and uniformity of the width and the thickness of the coating are realized, and the coating effect is greatly improved.
Description
Technical Field
The invention relates to the technical field of thermal transfer printing, in particular to a thermal transfer printing film production process and a thermal transfer printing film thereof.
Background
The thermal transfer film is a dielectric material for a thermal transfer process. The thermal transfer printing decoration process is a process of forming a high-quality decoration film by heating the thermal transfer printing film at one time and transferring the decoration pattern which is transferred by heat onto the surface of a decorated building material. The surface of the material has excellent performances of wear resistance, heat resistance, light resistance and the like, and the material has novel and beautiful patterns and stable color tone, and is a decorative material with wide application.
At present, materials of a thermal transfer film comprise a carrier layer, a release layer, a protective layer, an ink layer and a bonding layer, wherein the release layer, the protective layer and the bonding layer are all coated with a coating material on the carrier layer by utilizing a doctor blade device, the coating material is extruded into a thin layer by the existing doctor blade device in the coating process, and the coating material is extruded to overflow to two sides to flow in the process, so that the coating width is not easy to control, the coating quality is influenced, and the coating is still required to be manually supplemented in the coating process, so that the thermal transfer film is very inconvenient to use.
Disclosure of Invention
The invention aims to provide a production process of a thermal transfer film and the thermal transfer film thereof, and aims to solve the technical problems.
The aim of the invention can be achieved by the following technical scheme:
the device adopted in the production process comprises an unreeling device, a coating device, a drying box and a reeling device which are sequentially arranged along the transmission direction of the base film, wherein the coating devices are provided with a plurality of groups, and the drying box is arranged between two adjacent coating devices;
the coating device comprises a base, a feed box, a transmission roller and a coating roller, wherein the coating roller is rotatably arranged inside the feed box, the transmission roller is rotatably arranged at the upper end of the feed box, two sides of an opening at the upper end of the feed box are connected with fixing plates, a coating opening is formed between the fixing plates, the top end of the coating roller extends out of the coating opening and is abutted against the bottom end of the transmission roller, the transmission roller and the coating roller synchronously rotate, a base film passes through a gap between the transmission roller and the coating roller, a sealing scraper is arranged on the fixing plates at the left side, a first pressing plate for fixing the sealing scraper through threads is arranged at the upper end of the sealing scraper, a second pressing plate for fixing the coating scraper through threads is arranged on the fixing plates at the right side, one side of the sealing scraper is abutted against the coating roller, a discharge gap is formed between the coating scraper and the coating roller, two sides of the coating scraper are connected with side baffles, the side baffles and the scraping part are integrally connected, and the side baffles are used for sealing the two ends of the discharge gap, and the two ends of the discharge gap are used for sealing the width of the scraping gap, and the side baffle is abutted against the coating roller;
the two sides of the feed box are respectively connected with a feed pipe and a liquid level monitoring assembly, a mixing assembly is arranged at the bottom in the feed box, a motor is fixedly arranged at one side of the base, the output end of the motor is connected with a rotating shaft, a driving shaft penetrates through the inside of the coating roller along the axis, the rotating shaft is in transmission connection with the driving shaft through a chain belt, and the rotating shaft penetrates through the feed box and is connected with the mixing assembly;
the production process comprises the following steps:
step one, unreeling a base film: unwinding a film roll to be coated through an unwinding device and conveying the film roll forward through a conveying roller;
step two, coating a release layer: the base film passes through a first coating device assembled with discrete agent solution, and a release layer is coated on the base film through a coating roller;
step three, coating a protective layer: the base film passes through a second coating device assembled with a protective solution, and a protective layer is coated on the release layer through a coating roller;
step four, printing an ink layer: the base film passes through a printing device, and an ink layer is printed on the protective layer;
step five, coating an adhesive layer: the base film passes through a third coating device assembled with adhesive solution, an adhesive layer is coated on the ink layer through a coating roller, and finally the thermal transfer film is manufactured and wound by a winding device.
As a further scheme of the invention: the edge of scraping the material portion is arc-shaped and is matched with the outer edge of the coating roller, and the arc-shaped edge of the scraping the material portion abuts against the outer edge of the coating roller.
As a further scheme of the invention: the liquid level monitoring assembly comprises a monitoring cylinder, a floating ball, a communicating pipe and a monitoring rod, wherein the monitoring cylinder is fixedly arranged on one side of a material box, one end of the communicating pipe is communicated with the material box, the other end of the communicating pipe is communicated with the bottom of the monitoring cylinder, the floating ball is arranged in the monitoring cylinder, the upper end of the floating ball is connected with the monitoring rod, and the top end of the monitoring rod penetrates through the upper end of the monitoring cylinder in a sliding mode and is connected with a pressing block.
As a further scheme of the invention: the monitoring cylinder is characterized in that the upper end of the monitoring cylinder is connected with a supporting frame plate, a first switch is arranged at the bottom of the supporting frame plate, a second switch is arranged at the upper end of the monitoring cylinder, a valve is arranged on the feeding pipe, the first switch is used for controlling the valve to be closed, and the second switch is used for controlling the valve to be opened.
As a further scheme of the invention: the mixing assembly comprises a shell, a moving frame, a tooth-missing gear and a swinging rod, wherein the shell is fixedly arranged at the bottom in a feed box, the moving frame is arranged in the shell, tooth grooves are formed in the upper end and the lower end of the inside of the moving frame, the tooth-missing gear is fixedly sleeved on a rotating shaft and is matched with the tooth grooves in the moving frame in a tooth-joint mode, driving rods are connected to the two ends of the moving frame, the driving rods penetrate through the side wall of the shell in a sliding mode, pin shafts are arranged at the upper ends of the driving rods, a fixed shaft is connected to the center of the bottom in the feed box, the swinging rod is connected with the fixed shaft in a rotating mode, a sliding groove is formed in one end of the swinging rod, and the pin shafts are slidably arranged in the sliding groove.
As a further scheme of the invention: the swing rod is provided with a plurality of connecting shafts at equal intervals, the connecting shafts are in running fit with the swing rod, and uniformly-mixed blades are arranged on the outer sides of the connecting shafts.
As a further scheme of the invention: bearing seats are arranged on two sides of the upper end of the feed box, two ends of the transmission roller are in running fit with the bearing seats through rotating shafts, and one end of the driving shaft is in transmission connection with the rotating shafts through chain belts.
As a further scheme of the invention: the two ends of the driving shaft are in running fit with the feed box through bearings, a sealing gasket is arranged between the driving shaft and the feed box, and the sealing gasket is arranged on the inner side of the bearings.
The thermal transfer film comprises a base film, a release layer, a protective layer, an ink layer and an adhesive layer, wherein the release layer, the protective layer and the adhesive layer are coated by a coating device.
The invention has the beneficial effects that:
(1) According to the invention, through the structural design of the sealing scraping plate, the coating scraping plate and the side baffle plates, dust impurities adhered on the coating roller can be scraped by the sealing scraping plate, pollution to coating solution in a feed box is avoided, meanwhile, a plurality of thicker positions of the coating is dipped on the coating roller by the coating scraping plate, the uniform thickness of the coating is ensured, the uneven width of the coating layer caused by overflow of the coating layer to two sides in the extrusion process is avoided by the side baffle plates, the uniform width of the coating is ensured, the evenness and uniformity of the coating width and thickness are realized, and the coating effect is greatly improved;
(2) According to the invention, the monitoring cylinder is communicated with the inner space of the feed box through the communicating pipe, so that the liquid levels of the coating solution in the monitoring cylinder and the feed box are always at the same height, the floating ball and the monitoring rod are used for feeding back the liquid level change, and the intelligent monitoring and automatic feeding processes of the liquid level in the feed box are realized by matching the pressing block, the first switch and the second switch;
(3) According to the invention, through the matching transmission of the tooth-missing gear, the movable frame, the driving rod and the swinging rod, the swinging rod swings reciprocally around the fixed shaft, so that the reciprocating stirring process of the coating solution is realized, and meanwhile, the stirring effect is enhanced by matching the connecting shaft and the uniformly-mixing blades, and the mixing uniformity of the coating solution is further improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic illustration of a coating flow of a base film in the present invention;
FIG. 2 is a schematic view of the structure of the coating device of the present invention;
FIG. 3 is a schematic view of the structure of the upper end of the bin of the invention;
FIG. 4 is a schematic view of the structure of the side dams of the invention;
FIG. 5 is a schematic view of the fluid level monitoring assembly of the present invention;
FIG. 6 is a schematic view of the mixing assembly of the present invention;
FIG. 7 is a schematic view showing the internal structure of the coating apparatus of the present invention;
fig. 8 is a schematic view showing another internal structure of the coating apparatus of the present invention.
In the figure: 1. an unreeling device; 2. a coating device; 3. a drying box; 4. a winding device; 5. a base; 6. a feed box; 7. a conveying roller; 8. a coating roller; 9. a fixing plate; 10. a sealing scraper; 11. a first platen; 12. a coating blade; 13. a second pressing plate; 14. a discharge gap; 15. side baffles; 151. a side blocking part; 152. a scraping part; 16. a feed pipe; 17. a liquid level detection assembly; 171. monitoring the barrel; 172. a floating ball; 173. a communicating pipe; 174. a monitoring rod; 175. briquetting; 176. a support frame plate; 177. a first switch; 178. a second switch; 18. mixing the components uniformly; 181. a housing; 182. a moving frame; 183. a tooth-missing gear; 184. a driving rod; 185. a swinging rod; 186. a pin shaft; 187. a fixed shaft; 188. a connecting shaft; 189. uniformly mixing the blades; 19. a motor; 20. a drive shaft; 21. a bearing seat; 22. and a sealing gasket.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention is a thermal transfer film production process, and the production process adopts a device comprising an unreeling device 1, a coating device 2, a drying box 3 and a reeling device 4, which are sequentially arranged along the transmission direction of a base film, wherein the coating device 2 is provided with a plurality of groups, and the drying box 3 is arranged between two adjacent coating devices 2.
Specifically, the unreeling device 1 is used for unreeling a base film to be coated, the coating device 2 is used for coating the base film, multiple groups of coating devices 2 can be placed in sequence according to a coating process sequence, coating solutions corresponding to coating procedures are introduced into each group of coating devices 2, after the base film finishes the coating of the current coating, the base film enters the drying box 3 for drying, and then enters the next group of coating devices 2 for preparing the coating of the next coating, so that the coating process of the base film is completed, wherein the unreeling device 1, the drying box 3 and the reeling device 4 are all conventional devices in the coating field, and the specific structure of the base film is known in the prior art and is not repeated herein.
As shown in fig. 2-4, the coating device 2 comprises a base 5, a feed box 6, a transmission roller 7 and a coating roller 8, wherein the coating roller 8 is rotatably installed inside the feed box 6, the transmission roller 7 is rotatably installed at the upper end of the feed box 6, two sides of the opening at the upper end of the feed box 6 are connected with fixing plates 9, a coating opening is formed between the fixing plates 9, the top end of the coating roller 8 extends out of the coating opening and is abutted against the bottom end of the transmission roller 7, the transmission roller 7 and the coating roller 8 synchronously rotate, a base film passes through a gap between the transmission roller 7 and the coating roller 8, a sealing scraping plate 10 is arranged on the fixing plates 9 at the left side, a first pressing plate 11 for fixing the sealing scraping plate 10 by threads is arranged at the upper end of the sealing scraping plate 10, a coating scraping plate 12 is arranged on the fixing plates 9 at the right side, a second pressing plate 13 for fixing the coating scraping plate 12 by threads is arranged at the upper end of the coating scraping plate 12, one side of the sealing scraping plate 10 abuts against the coating roller 8, a discharging gap 14 is formed between the coating scraping plate 12 and the coating roller 8, two sides of the coating plate 12 are connected with side baffles 15, the side baffles 15 comprise integrally connected side baffles 151 and a scraping plate 152, and the side baffle 151 are integrally connected side baffle portions, and the side baffle plates 152 are arranged at the sides, and the side edges of the side edges are tightly connected to each other by the side.
Specifically, the transmission roller 7 and the coating roller 8 keep synchronously rotating, the transmission roller 7 is used for continuously conveying the base film forwards in the rotating process, meanwhile, the coating roller 8 dips in the coating material box 6 in the rotating process, when passing through the discharging gap 14, the coating outside the coating area on the coating roller 8 can be scraped off by the scraping part 152 and left in the coating material box 6, and the thicker and more dipped coating material position on the coating roller 8 can be scraped off by the coating scraper 12 when passing through the coating scraper 12, so that the dipped coating material layer is kept consistent, the uniform and consistent coating thickness is favorably realized, and the coating material layer can be extruded and flowed towards two sides due to the fact that the coating scraper 12 can form extrusion in the scraping process, at the moment, the side baffle 15 can block the coating material extruded and flowed towards the outside to enable the coating material to flow back into the inside of the coating box 6, the uniformity and consistency of the coating material layer width caused by overflowing towards two sides in the extrusion process is effectively avoided due to the constraint effect of the side baffle 15.
As shown in fig. 7 and 8, two sides of the feed box 6 are respectively connected with a feed pipe 16 and a liquid level monitoring assembly 17, a mixing assembly 18 is arranged at the bottom in the feed box 6, a motor 19 is fixedly arranged at one side of the base 5, the output end of the motor 19 is connected with a rotating shaft, a driving shaft 20 is arranged in the coating roller 8 along the axis in a penetrating manner, the rotating shaft is connected with the driving shaft 20 through chain belt transmission, and the rotating shaft penetrates through the feed box 6 and is connected with the mixing assembly 18.
Specifically, the liquid level monitoring assembly 17 can monitor the liquid level of the coating solution in the bin in real time, and control the automatic feeding process of the feeding pipe 16 according to the monitoring result; the mixing component 18 is used for uniformly stirring the coating solution in the bin in a reciprocating manner, so that the coating solution is always in a flowing state in the coating process, and the phenomenon that the coating quality is affected due to uneven mixing of the coating solution caused by precipitation is avoided.
The production process comprises the following steps:
step one, unreeling a base film: the film roll to be coated is unwound by an unwinding device 1 and conveyed forward by a conveying roller;
step two, coating a release layer: the base film passes through a first coating device 2 assembled with a dispersing agent solution, and a release layer is coated on the base film through a coating roller 8;
step three, coating a protective layer: the base film passes through a second coating device 2 assembled with a protective solution, and a protective layer is coated on the release layer through a coating roller 8;
step four, printing an ink layer: the base film passes through a printing device, and an ink layer is printed on the protective layer;
step five, coating an adhesive layer: the base film passes through a third coating device 2 assembled with an adhesive solution, an adhesive layer is coated on the ink layer through a coating roller 8, and finally, a thermal transfer film is manufactured and is wound by a winding device 4.
As shown in fig. 4, the edge of the scraping portion 152 is arc-shaped and is matched with the outer edge of the coating roller 8, and the arc-shaped edge of the scraping portion 152 abuts against the outer edge of the coating roller 8. The structure of the arc-shaped edge is beneficial to the adhesion of the scraping part 152 and the coating roller 8, and the normal rotation process of the coating roller 8 is not influenced while the effective scraping of the coating is ensured.
As shown in fig. 5, the liquid level monitoring assembly 17 comprises a monitoring cylinder 171, a floating ball 172, a communicating pipe 173 and a monitoring rod 174, wherein the monitoring cylinder 171 is fixedly installed on one side of the material box 6, one end of the communicating pipe 173 is communicated with the material box 6, the other end of the communicating pipe 173 is communicated with the bottom of the monitoring cylinder 171, the floating ball 172 is arranged in the monitoring cylinder 171, the upper end of the floating ball 172 is connected with the monitoring rod 174, and the top end of the monitoring rod 174 penetrates through the upper end of the monitoring cylinder 171 in a sliding manner and is connected with a pressing block 175.
Further, the upper end of the monitoring cylinder 171 is connected with a supporting frame plate 176, a first switch 177 is arranged at the bottom of the supporting frame plate 176, a second switch 178 is arranged at the upper end of the monitoring cylinder 171, a valve is arranged on the feeding pipe 16, the first switch 177 is used for controlling the valve to be closed, and the second switch 178 is used for controlling the valve to be opened.
Specifically, the connection position of the communicating pipe 173 and the feed box 6 is located at the bottom of the feed box 6, meanwhile, the space between the monitoring cylinder 171 and the feed box 6 is communicated through the communicating pipe 173, so that the liquid level of the coating solution in the monitoring cylinder 171 and the feed box 6 is always located at the same height, the liquid level change in the monitoring cylinder 171 can enable the floating ball 172 to float up and down, so that the monitoring rod 174 is driven to move up and down, when the liquid level in the feed box 6 is lower and the coating solution needs to be replenished, the floating ball 172 descends to a low point position along with the liquid level, at the moment, the monitoring rod 174 descends along with the floating ball 172 until the pressing block 175 touches the second switch 178 below, the second switch 178 controls the valve to be opened, the coating solution is replenished into the feed box 6 through the feed pipe 16, and along with the gradual rising of the liquid level, the floating ball 172 also drives the monitoring rod 174 to move up gradually until the pressing block 175 touches the first switch 177 above, the first switch 177 is closed, and the replenishing solution is stopped, so that intelligent monitoring and automatic charging of the liquid level of the feed box 6 are realized. The bottom of the material box 6 in the embodiment is also communicated with a discharging pipe, the discharging pipe is always kept in a closed state in the coating process, and after the coating is completed, the residual coating solution in the material box 6 can be discharged through the discharging pipe.
As shown in fig. 6, the blending assembly 18 includes a housing 181, a moving frame 182, a tooth-missing gear 183 and a swinging rod 185, the housing 181 is fixedly installed at the bottom in the bin 6, the moving frame 182 is disposed in the housing 181, tooth grooves are formed at the upper and lower ends of the interior of the moving frame 182, the tooth-missing gear 183 is fixedly sleeved on a rotating shaft and the tooth-missing gear 183 is engaged with the tooth grooves in the moving frame 182, the two ends of the moving frame 182 are connected with a driving rod 184, the driving rod 184 slides through the side wall of the housing 181, a pin shaft 186 is provided at the upper end of the driving rod 184, a fixed shaft 187 is connected at the center of the bottom in the bin 6, the swinging rod 185 is rotationally connected with the fixed shaft 187, a chute is provided at one end of the swinging rod 185, and the pin shaft 186 is slidably installed in the chute.
Specifically, the rotating shaft drives the tooth-missing gear 183 to rotate inside the moving frame 182, and the tooth-missing gear 183 is intermittently meshed with tooth grooves at the upper end and the lower end in the rotating process, so that the moving frame 182 makes a left-right reciprocating linear motion in the shell 181, the driving rod 184 is continuously pushed and pulled back and forth, and when the driving rod 184 is pushed and pulled, the driving rod 184 drives the swinging rod 185 to make reciprocating swinging around the fixed shaft 187 through the cooperation of the pin shaft 186 and the sliding groove, and the reciprocating stirring process of the coating solution is realized, so that the mixing degree of the coating solution is improved. In this embodiment, the connection between the driving rod 184 and the housing 181 and the connection between the rotating shaft and the tank 6 are sealed, so that the coating solution is prevented from leaking out from the connection gap.
Further, a plurality of connecting shafts 188 are arranged on the swing rod 185 at equal intervals, the connecting shafts 188 are in running fit with the swing rod 185, and mixing blades 189 are arranged on the outer sides of the connecting shafts 188.
Specifically, the driving rod 184 drives the swing rod 185 to reciprocate around the fixed shaft 187, and in the swing process, the connecting shaft 188 can freely rotate on the swing rod 185, so as to drive the mixing blade 189 to rotate to further stir the coating solution, thereby enhancing the stirring effect and further improving the mixing uniformity of the coating solution.
As shown in fig. 2, bearing seats 21 are arranged on two sides of the upper end of the feed box 6, two ends of the transmission roller 7 are in running fit with the bearing seats 21 through a rotating shaft, and one end of a driving shaft 20 is in transmission connection with the rotating shaft through a chain belt.
Specifically, the motor 19 drives the rotating shaft to rotate, the driving shaft 20 and the coating roller 8 are driven to rotate by the rotating belt, and meanwhile, the driving shaft 20 drives the rotating shaft to rotate by the other chain belt, so that the transmission roller 7 and the coating roller 8 realize synchronous rotation, and the base film passes through between the transmission roller 7 and the coating roller 8, and the coating process is completed in the process of continuously conveying forwards.
As shown in fig. 8, both ends of the driving shaft 20 are in running fit with the bin 6 through bearings, a sealing washer 22 is provided between the driving shaft 20 and the bin 6, and the sealing washer 22 is provided inside the bearings. The sealing gasket 22 can effectively improve the sealing performance, prevent the coating solution from leaking, and simultaneously avoid the contact between the coating solution and the bearing.
The thermal transfer film comprises a base film, a release layer, a protective layer, an ink layer and an adhesive layer, wherein the release layer, the protective layer and the adhesive layer are coated by a coating device 2.
According to the production process of the thermal transfer film and the thermal transfer film thereof, when the thermal transfer film is produced, a film roll to be coated is unwound by an unwinding device 1 and conveyed forwards by a conveying roller, a release layer is formed by coating on a base film through a coating device 2 filled with a discrete agent solution, a protective layer is formed by coating on the release layer through the coating device 2 filled with a protective solution, an ink layer is formed on the protective layer through a printing device, an adhesive layer is formed by coating on the ink layer through the coating device 2 filled with an adhesive solution, and finally the thermal transfer film is manufactured and wound by a winding device 4. Wherein, in the coating process, transfer roller 7 and coating roller 8 keep synchronous rotation, transfer roller 7 is used for constantly conveying the base film forward in the rotation in-process, coating roller 8 dips in the coating from workbin 6 in the rotation in-process, when passing through ejection of compact gap 14, coating outside the coating region on coating roller 8 can be scraped and stay in workbin 6 by scraping material portion 152, and dip in the thicker more position of coating on coating roller 8 and when passing through coating scraper 12, can be scraped by coating scraper 12 and make the coating layer thickness that dips in keep unanimous, be favorable to realizing the even uniformity of coating thickness, and, because coating scraper 12 can form the extrusion to the coating layer in the scraping process, make the coating can extrude the flow to both sides, side shield 15 can block outside extrusion flow's coating and make it flow back to workbin 6 in this moment, because the restraint effect of side shield 15 has effectively avoided the coating layer to spill over to both sides in the extrusion process and lead to the coating layer width inhomogeneous, it is even to have guaranteed the even uniformity of coating layer width.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (6)
1. The production process of the heat transfer film is characterized in that the production process adopts a device comprising an unreeling device (1), a coating device (2), a drying box (3) and a reeling device (4) which are sequentially arranged along the transmission direction of a base film, wherein the coating devices (2) are provided with a plurality of groups, and the drying box (3) is arranged between two adjacent coating devices (2);
the coating device (2) comprises a base (5), a feed box (6), a transmission roller (7) and a coating roller (8), wherein the coating roller (8) is rotationally arranged inside the feed box (6), the transmission roller (7) is rotationally arranged at the upper end of the feed box (6), two sides of the opening at the upper end of the feed box (6) are connected with fixing plates (9), a coating opening is formed between the fixing plates (9), the top end of the coating roller (8) extends out of the coating opening and is abutted against the bottom end of the transmission roller (7), the transmission roller (7) and the coating roller (8) synchronously rotate, a base film passes through a gap between the transmission roller (7) and the coating roller (8), a sealing scraper (10) is arranged on the fixing plates (9) at the left side, a first pressing plate (11) for fixing the sealing scraper (10) through threads is arranged at the upper end of the sealing scraper (10), a coating scraper (12) is arranged on the fixing plates (9) at the right side, a coating scraper (12) is arranged at the upper end of the coating scraper (12) and is provided with a second pressing plate (12) for fixing the coating scraper (12) through threads, a second pressing plate (13) is abutted against the coating scraper (12) on the two sides (8) are connected with the coating roller (14), the side baffle (15) comprises a side baffle part (151) and a scraping part (152) which are integrally connected, the side baffle part (151) seals two ends of the discharging gap (14) and is used for restraining the discharging width, and the scraping part (152) is abutted against the coating roller (8) and is used for scraping coating outside a coating area on the coating roller (8);
the edge of the scraping part (152) is arranged in an arc shape and is matched with the outer edge of the coating roller (8), and the arc-shaped edge of the scraping part (152) is abutted against the outer edge of the coating roller (8);
the two sides of the feed box (6) are respectively connected with a feed pipe (16) and a liquid level monitoring assembly (17), a mixing assembly (18) is arranged at the bottom in the feed box (6), a motor (19) is fixedly arranged at one side of the base (5), the output end of the motor (19) is connected with a rotating shaft, a driving shaft (20) penetrates through the coating roller (8) along the axis, the rotating shaft is connected with the driving shaft (20) through a chain belt in a transmission manner, and the rotating shaft penetrates through the feed box (6) and is connected with the mixing assembly (18);
the mixing component (18) comprises a shell (181), a moving frame (182), a tooth-missing gear (183) and a swinging rod (185), wherein the shell (181) is fixedly arranged at the inner bottom of a feed box (6), the moving frame (182) is arranged in the shell (181), tooth grooves are formed in the upper end and the lower end of the inner part of the moving frame (182), the tooth-missing gear (183) is fixedly sleeved on a rotating shaft and is meshed with the tooth grooves in the moving frame (182), two ends of the moving frame (182) are connected with driving rods (184), the driving rods (184) penetrate through the side wall of the shell (181) in a sliding mode, pin shafts (186) are arranged at the upper ends of the driving rods (184), fixed shafts (187) are connected at the center of the inner bottom of the feed box (6), the swinging rod (185) is rotatably connected with the fixed shafts (187), sliding grooves are formed in one ends of the swinging rod (185), and the pin shafts (186) are slidably arranged in the sliding grooves.
A plurality of connecting shafts (188) are arranged on the swinging rod (185) at equal intervals, the connecting shafts (188) are in running fit with the swinging rod (185), and mixing blades (189) are arranged on the outer sides of the connecting shafts (188);
the production process comprises the following steps:
step one, unreeling a base film: unwinding a film roll to be coated by an unwinding device (1) and conveying the film roll forward by a conveying roller;
step two, coating a release layer: the base film passes through a first coating device (2) assembled with a dispersing agent solution, and a release layer is coated on the base film through a coating roller (8);
step three, coating a protective layer: the base film passes through a second coating device (2) assembled with a protective solution, and a protective layer is coated on the release layer through a coating roller (8);
step four, printing an ink layer: the base film passes through a printing device, and an ink layer is printed on the protective layer;
step five, coating an adhesive layer: the base film passes through a third coating device (2) assembled with adhesive solution, an adhesive layer is coated on the ink layer through a coating roller (8), and finally the thermal transfer film is manufactured and wound by a winding device (4).
2. The thermal transfer film production process according to claim 1, wherein the liquid level monitoring assembly (17) comprises a monitoring cylinder (171), a floating ball (172), a communicating pipe (173) and a monitoring rod (174), the monitoring cylinder (171) is fixedly installed on one side of the material box (6), one end of the communicating pipe (173) is communicated with the material box (6), the other end of the communicating pipe (173) is communicated with the bottom of the monitoring cylinder (171), the floating ball (172) is arranged in the monitoring cylinder (171), the upper end of the floating ball (172) is connected with the monitoring rod (174), and the top end of the monitoring rod (174) penetrates through the upper end of the monitoring cylinder (171) in a sliding mode and is connected with a pressing block (175).
3. The thermal transfer film production process according to claim 2, wherein a support frame plate (176) is connected to the upper end of the monitoring cylinder (171), a first switch (177) is arranged at the bottom of the support frame plate (176), a second switch (178) is arranged at the upper end of the monitoring cylinder (171), a valve is arranged on the feeding pipe (16), the first switch (177) is used for controlling the valve to be closed, and the second switch (178) is used for controlling the valve to be opened.
4. The production process of the thermal transfer film according to claim 1, wherein bearing seats (21) are arranged on two sides of the upper end of the feed box (6), two ends of the conveying roller (7) are in running fit with the bearing seats (21) through rotating shafts, and one end of the driving shaft (20) is in transmission connection with the rotating shafts through chain belts.
5. A thermal transfer film production process according to claim 1, wherein both ends of the driving shaft (20) are in running fit with the feed box (6) through bearings, a sealing gasket (22) is provided between the driving shaft (20) and the feed box (6), and the sealing gasket (22) is provided inside the bearings.
6. The thermal transfer film prepared by the thermal transfer film production process according to claim 1, which comprises a base film, a release layer, a protective layer, an ink layer and an adhesive layer, and is characterized in that the release layer, the protective layer and the adhesive layer are coated by a coating device (2).
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| CN202211577159.0A CN115722395B (en) | 2022-12-09 | 2022-12-09 | Thermal transfer film production process and thermal transfer film thereof |
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| CN108187551A (en) * | 2018-02-05 | 2018-06-22 | 河南高盛企业管理咨询有限公司 | A kind of gear driving swing type water paint and mixing apparatus of powdery row material |
| CN208098481U (en) * | 2018-02-11 | 2018-11-16 | 广州市创坤金葱粉皮革有限公司 | A kind of base fabric quetsch being coated with make-up machine |
| CN108886905A (en) * | 2018-06-19 | 2018-11-27 | 金寨县金银山农业科技开发有限公司 | A kind of seed processing equipment for cotton |
| CN111036501B (en) * | 2020-01-11 | 2021-06-15 | 黄山天马铝业有限公司 | Aluminum foil double-side rapid coating device and method |
| CN112452665A (en) * | 2020-11-16 | 2021-03-09 | 四川峻发鑫材环保设备有限公司 | Heat transfer printing film production line capable of replacing paint spraying |
| CN216500426U (en) * | 2021-10-20 | 2022-05-13 | 无锡昌盛胶粘制品有限公司 | Gluing thickness control device of coating machine |
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