Soft package plateless roller transfer device and process thereof

Abstract

The application relates to the field of soft package printing, in particular to a soft package plateless roller transfer printing process and device thereof, which comprises the following steps: printing a pattern on a transfer film; and transferring the pattern on the transfer film to a printing film by a heating assembly. The process does not need a plate roller and glue, greatly reduces production cost, improves production quality, is more stable, easy to operate, improves production efficiency, and greatly improves appearance effect and diversity and use range.

Description

Technical Field

[0001] This application relates to the field of flexible packaging printing, and in particular to a flexible packaging plateless roller transfer printing process and apparatus. Background Technology

[0002] To highlight the design and meet anti-counterfeiting requirements, some packaging designs feature text or patterns with a holographic effect. In traditional flexible packaging transfer printing, to achieve this effect, the text or pattern is first cut out on a printing roller. Special adhesive is then filled into the cutout grooves, and the roller transfers the adhesive onto a printing film. A holographic aluminum transfer film is then used to transfer holographic material, corresponding to the shape of the adhesive, onto the printing film, thus achieving the desired holographic effect on the text or pattern.

[0003] Due to the fixed nature of the printing roller pattern, different printing rollers need to be made if a new pattern is required. The presence of printing rollers in traditional processes greatly increases the cost of the transfer printing process and significantly limits its application. Special adhesives must be easy to peel off while ensuring complete transfer; process control is crucial. Peeling damage frequently occurs, resulting in a large number of defective products and poor production quality. Summary of the Invention

[0004] To improve production quality, this application provides a flexible packaging plateless roller transfer printing process and apparatus.

[0005] In the first aspect, this application provides a plateless roller transfer printing process for flexible packaging, employing the following technical solution:

[0006] A plateless roller transfer printing process for flexible packaging includes the following steps:

[0007] Print patterns on the transfer film;

[0008] The pattern on the transfer film is imprinted onto the printing film using a heating component.

[0009] By adopting the above technical solution, the process eliminates the need for printing rollers and glue, greatly reducing production costs, improving production quality, making it more stable, easier to operate, and increasing production efficiency. The appearance, diversity, and application range are also greatly improved.

[0010] Preferably, the transfer membrane is made of PET.

[0011] By adopting the above technical solutions, PET has the advantages of good heat resistance, not being easily deformed during use, good processing performance, and being able to be cut into narrower widths. PET has excellent adhesion, which can solve the problem of easy spot loss in traditional processes. It has a wider range of applications, is easier to use, and improves production quality.

[0012] Secondly, this application provides a flexible packaging plateless roller transfer printing device, which adopts the following technical solution:

[0013] A flexible packaging plateless roller transfer device includes a feeding assembly, a heating assembly, and a receiving assembly. The feeding assembly includes a support frame, a first roller, and a second roller, both of which are rotatably connected to the support frame around their own axes. The heating assembly includes a heating chamber, a support roller, and a heating roller. The heating chamber has a heating cavity, and both the heating roller and the support roller are rotatably connected to the inner wall of the heating cavity around their own axes. The receiving assembly includes a fixed frame, a third roller, and a fourth roller, both of which are rotatably connected to the fixed frame around their own axes. The axes of the first roller, second roller, third roller, fourth roller, support roller, and heating roller are all parallel to each other. The transfer film passes sequentially through the first roller, heating roller, and third roller, and the printing film passes sequentially through the second roller, support roller, and fourth roller.

[0014] By adopting the above technical solution, the first roller rotates to release the transfer film, the second roller rotates to release the printing film, and the transfer film and the printing film are combined and pass between the heating roller and the support roller, so that the pattern on the transfer film is transferred to the printing film, improving the processing quality. The third roller rewinds the transfer film, which is convenient for repeated use and reduces resource waste. The fourth roller rewinds the printing film, which reduces the floor space required.

[0015] Preferably, the heating assembly further includes a guide roller, a feed roller, a traction roller, and a discharge roller. The heating roller is located above the support roller. The guide roller and the feed roller are both located on the side of the heating roller near the first rotating roller. The feed roller is located above the guide roller. The traction roller and the discharge roller are both located on the side of the heating roller near the third rotating roller. The discharge roller is located above the traction roller.

[0016] By adopting the above technical solution, the guide roller, feed roller, traction roller and discharge roller work together to pull the transfer film and printing film, which facilitates feeding and discharging, and makes the transfer film and printing film flat when the heating roller is heating, thus improving production quality.

[0017] Preferably, the receiving assembly further includes a discharge platform, a support, and a pressure roller. The discharge platform is located between the fixed frame and the heating box. The support is fixedly connected to the upper end of the discharge platform. The pressure roller is rotatably connected to the support around its own axis, and the axis of the pressure roller is parallel to the axis of the third rotating roller.

[0018] By adopting the above technical solution, the pressure roller and the discharge platform limit the transfer film and the printing film, so that the heated transfer film and the printing film can be separated after being allowed to cool and stand still, thereby improving the quality of subsequent film tearing and improving production quality.

[0019] Preferably, the receiving assembly further includes a scraper, which is located on the side of the pressure roller away from the heating box. The scraper is fixedly connected to the discharge platform and is used to abut against the end of the transfer film facing the printing film.

[0020] By adopting the above technical solution, after the transfer film and printing film are separated, the scraper removes the impurities remaining on the transfer film, which facilitates the repeated use of the transfer film and improves the utilization rate of the transfer film.

[0021] Preferably, the receiving assembly further includes an air outlet pipe, and the upper end of the discharge platform is provided with a material collection trough. The length direction of the material collection trough is parallel to the length direction of the discharge platform. The air outlet pipe and the material collection trough are respectively located on both sides of the printing film. The air outlet pipe is fixedly connected to the upper end of the discharge platform, and the outlet of the air outlet pipe faces the upper surface of the printing film. The material collection trough is used to collect impurities.

[0022] By adopting the above technical solution, the air outlet of the air duct cools the transfer film and the printing film, which facilitates the subsequent separation of the transfer film and the printing film, improves production quality, dries the printing film, cleans impurities on the printing film, increases the probability of clear printed patterns after rewinding, and maintains a clean working environment.

[0023] Preferably, the heating assembly further includes a first slide rail, a second slide rail, a first sliding window, a second sliding window, a limiting block, a fixing plate, and a shape memory alloy. The side wall of the heating chamber has a viewing window that communicates with the heating cavity. The first and second slide rails are both fixedly connected to the inner wall facing upwards from the viewing window. The first slide rail is located on the side of the second slide rail away from the heating cavity. The length directions of both the first and second slide rails are parallel to the length direction of the heating chamber. The first sliding window is slidably connected to the first slide rail, and the second sliding window is slidably connected to the second slide rail. Both the first and second sliding windows cover the viewing window. The end of the first sliding window facing the second sliding window has a through groove, and the second sliding window has an opening that communicates with the heating cavity. The through groove is used to connect to the opening. The limiting block is slidably connected to the top wall of the heating cavity and is used to extend into the opening and the through groove. The fixing plate is fixedly connected to the top wall of the heating cavity. One end of the shape memory alloy is fixedly connected to the fixing plate, and the other end of the shape memory alloy is fixedly connected to the limiting block.

[0024] By adopting the above technical solution, when the transfer film or printing film is used up, the equipment needs to be paused to replenish the film material. After replenishing the film material, the new film material needs to be pulled through the heating component. When the operator opens the viewing window, the high temperature inside the heating chamber may burn the operator. The shape memory alloy is set so that when the temperature inside the heating chamber is too high, the shape memory alloy deforms and elongates, causing the limiting block to extend into the through groove and through opening, locking the first sliding window and the second sliding window, so that the operator cannot open the viewing window and protects the operator.

[0025] Preferably, it further includes a support plate, a fan, and a baffle. The support plate is fixedly connected to the outer wall of the discharge platform, the fan is slidably connected to the support plate, and the sliding direction of the fan is parallel to the length direction of the discharge platform. The outer wall of the heating box is provided with a ventilation port, which is located below the viewing window and communicates with the heating chamber. The baffle is fixedly connected to the housing of the fan and is used to cover the ventilation port. The air outlet of the fan is used to face the pipe opening of the air outlet pipe or the ventilation port.

[0026] By adopting the above technical solution, when the equipment stops running, the movement of the fan and baffle opens the air vent, and the fan faces the air vent to ventilate the heating chamber, thereby improving the ventilation efficiency.

[0027] Preferably, the device further includes a control component located on the outer periphery of the heating chamber. The control component includes a first bevel gear, a connecting frame, a fixed ring, a rotating shaft, a second bevel gear, a bearing, a first hinge rod, a second hinge rod, and a spring. The first bevel gear is coaxially and fixedly connected to the end of the support roller facing the support plate. The connecting frame is fixedly connected to the outer wall of the heating chamber facing the support plate. The rotating shaft is rotatably connected to the connecting frame around its own axis, with the axis of rotation parallel to the length direction of the heating chamber. The second bevel gear is coaxially and fixedly connected to the outer wall of the rotating shaft, and the first bevel gear meshes with the second bevel gear. The fixed ring is coaxially and fixedly connected to the rotating shaft. The bearing is located on the side of the fixed ring near the air vent, and the inner ring of the bearing is slidably connected to the rotating shaft. One end of the first hinge rod is hinged to the outer wall of the fixed ring, and the other end of the first hinge rod is hinged to one end of the second hinge rod. The other end of the second hinge rod is hinged to the outer wall of the bearing. One end of the spring abuts against the fixed ring, and the other end of the spring abuts against the bearing. The inner ring of the bearing is fixedly connected to the fan housing.

[0028] By adopting the above technical solution, the control unit automatically controls the movement of the fan, so that the heating box is automatically ventilated when the equipment stops running, thereby reducing equipment downtime and improving production efficiency.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. This process eliminates the need for printing rollers and glue, significantly reducing production costs, improving production quality, increasing stability, ease of operation, and production efficiency. It also greatly enhances the appearance, versatility, and range of applications.

[0031] 2. The air outlet duct cools the transfer film and printing film, which facilitates the subsequent separation of the transfer film and printing film, improves production quality, dries the printing film, cleans impurities on the printing film, increases the probability of clear printed patterns after rewinding, and maintains a clean working environment.

[0032] 3. When the transfer film or printing film is used up, the equipment needs to be paused to replenish the film material. After replenishing the film material, the new film material needs to be pulled through the heating component. When the operator opens the viewing window, the high temperature inside the heating chamber may burn the operator. The shape memory alloy is set so that when the temperature inside the heating chamber is too high, the shape memory alloy deforms and elongates, causing the limiting block to extend into the through groove and through opening, locking the first sliding window and the second sliding window, so that the operator cannot open the viewing window and protects the operator. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of a flexible packaging plateless roller transfer device.

[0034] Figure 2 This is a schematic diagram of the internal structure of a flexible packaging plateless roller transfer device after being cut open.

[0035] Figure 3 This is a cross-sectional view of a flexible packaging plateless roller transfer device.

[0036] Figure 4 This is a schematic diagram of the overall structure of the support roller, the receiving assembly, and the auxiliary components.

[0037] Figure 5 This is a schematic diagram of the overall structure of the heating component and the first bevel gear.

[0038] Explanation of reference numerals in the attached drawings: 1. Feeding assembly; 11. Feeding platform; 12. Support frame; 13. First rotating roller; 14. Second rotating roller; 15. Mounting frame; 151. Mounting plate; 152. Mounting rod; 16. Exhaust plate; 2. Heating assembly; 21. Heating box; 211. Heating chamber; 2111. First placement slot; 2112. Second placement slot; 2113. Third placement slot; 2114. Fourth placement slot; 2115. Fifth placement slot; 2116. Sixth placement slot; 212. Feed inlet; 213. Discharge outlet; 214. Viewing window; 215. Ventilation port; 22. Guide roller; 23. Feeding roller; 24. Traction roller; 25. Discharge roller; 26. Support roller; 27. Heating roller; 28. Protective component; 281. First slide rail; 282. 1. Second slide rail; 283. First sliding window; 2831. Through groove; 284. Second sliding window; 2841. Through opening; 285. Limiting block; 286. Fixing plate; 287. Shape memory alloy; 3. Receiving assembly; 31. Discharging platform; 311. Collection trough; 32. Fixing frame; 33. Third rotating roller; 34. Fourth rotating roller; 35. Support; 36. Pressure roller; 37. Scraper; 38. Air duct; 381. Air outlet; 4. Auxiliary assembly; 41. Support plate; 42. Fan; 43. Baffle; 44. Control component; 441. First bevel gear; 442. Connecting frame; 443. Rotating shaft; 444. Second bevel gear; 445. Fixing ring; 446. Bearing; 447. First hinge rod; 448. Second hinge rod; 449. Spring. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0040] This application discloses a plateless roller transfer printing process for flexible packaging. (Refer to...) Figure 1 A flexible packaging rollerless transfer printing process includes the following steps:

[0041] Print patterns on the transfer film, and set the material of the transfer film to PET;

[0042] The pattern on the transfer film is imprinted onto the printing film using the heating component 2.

[0043] The implementation principle of the flexible packaging rollerless transfer printing process in this application embodiment is as follows: it eliminates the need for printing rollers and glue, greatly reducing production costs, improving production quality, making it more stable, easier to operate, and increasing production efficiency. Its appearance effect, diversity, and application range are also greatly improved.

[0044] This application also discloses a flexible packaging plateless roller transfer printing device. (Refer to...) Figure 1 A flexible packaging plateless roller transfer device includes a feeding component 1, a heating component 2, a receiving component 3, and an auxiliary component 4.

[0045] Reference Figure 1 and Figure 2 The feeding assembly 1 includes a feeding platform 11, a support frame 12, a first rotating roller 13, a second rotating roller 14, a mounting frame 15, and an exhaust plate 16. The feeding platform 11 is fixedly connected to the ground, and the support frame 12 is fixedly connected to one end of the feeding platform 11. The first rotating roller 13 and the second rotating roller 14 are both rotatably connected to the support frame 12 around their own axes. The height of the first rotating roller 13 is greater than the height of the second rotating roller 14. The axes of the first rotating roller 13 and the second rotating roller 14 are both parallel to the width direction of the feeding platform 11. The first rotating roller 13 is used to unwind the transfer film, and the second rotating roller 14 is used to unwind the printing film. The mounting frame 15 includes a mounting plate 151 and a mounting rod 152. The mounting plate 151 is fixedly connected to the upper end of the feeding platform 11. There are two mounting plates 151, which are respectively located on both sides of the printing paper. The two ends of the mounting rod 152 are fixedly connected to the mounting plate 151. The length direction of the mounting rod 152 is parallel to the width direction of the feeding platform 11. The upper end of the exhaust plate 16 is hinged to the mounting rod 152 by a torsion spring, and the lower end of the exhaust plate 16 abuts against the upper surface of the transfer film.

[0046] Reference Figure 1 and Figure 2 The heating component 2 is located on the side of the feeding platform 11 away from the support frame 12. The heating component 2 includes a heating box 21, a guide roller 22, a feeding roller 23, a traction roller 24, a discharge roller 25, a support roller 26, a heating roller 27, and a protective component 28. The heating box 21 is provided with a heating chamber 211. The length direction of the heating box 21 is parallel to the length direction of the feeding platform 11. The two ends of the heating box 21 are respectively provided with a feeding port 212 and a discharge port 213. The feeding port 212 and the discharge port 213 are both connected to the heating chamber 211. The feeding port 212 and the discharge port 213 are used to allow one transfer film and one printing film to pass through. The feeding port 212 faces the feeding platform 11. The bottom wall of the heating chamber 211 is provided with a first placement groove 2111, a second placement groove 2112 and a third placement groove 2113. The first placement groove 2111 is located near the feed inlet 212, the third placement groove 2113 is located near the discharge outlet 213, and the second placement groove 2112 is located between the first placement groove 2111 and the third placement groove 2113. There are two second placement grooves 2112, which are spaced apart along the length of the heating chamber 21. The top wall of the heating chamber 211 is provided with a fourth placement groove 2114, a fifth placement groove 2115 and a sixth placement groove 2116. The fourth placement groove 2114 is located opposite the first placement groove 2111, the fifth placement groove 2115 is located opposite the second placement groove 2112, and the sixth placement groove 2116 is located opposite the third placement groove 2113.

[0047] Reference Figure 2The guide roller 22 is rotatably connected to the wall of the first placement groove 2111 at both ends around its own axis. The feed roller 23 is rotatably connected to the wall of the fourth placement groove 2114 at both ends around its own axis. The support roller 26 is rotatably connected to the wall of the second placement groove 2112 at both ends around its own axis. The heating roller 27 is rotatably connected to the wall of the fifth placement groove 2115 at both ends around its own axis. The heating roller 27 is heated by electromagnetic induction. The traction roller 24 is rotatably connected to the wall of the third placement groove 2113 at both ends around its own axis. The discharge roller 25 is rotatably connected to the wall of the sixth placement groove 2116 at both ends around its own axis. The rotation axes of the guide roller 22, feed roller 23, support roller 26, heating roller 27, traction roller 24, and discharge roller 25 are all parallel to the width direction of the heating box 21. The guide roller 22 and the feed roller 23 are driven by gear meshing, the support roller 26 and the heating roller 27 are driven by gear meshing, the traction roller 24 and the discharge roller 25 are driven by gear meshing, and the drive motor drives the feed roller 23, the heating roller 27 and the discharge roller 25 to rotate.

[0048] Reference Figure 3 The protective component 28 includes a first slide rail 281, a second slide rail 282, a first sliding window 283, a second sliding window 284, a limiting block 285, a fixing plate 286, and a shape memory alloy 287. The side wall of the heating box 21 is provided with a viewing window 214, which is connected to the heating cavity 211. The first slide rail 281 and the second slide rail 282 are both fixedly connected to the inner wall facing upwards of the viewing window 214. The first slide rail 281 is located on the side of the second slide rail 282 away from the heating cavity 211. The length directions of the first slide rail 281 and the second slide rail 282 are both parallel to the length direction of the heating box 21. The first sliding window 283 is slidably connected to the first slide rail 281, and the second sliding window 284 is slidably connected to the second slide rail 282. Both the first sliding window 283 and the second sliding window 284 are used to cover the viewing window 214. The end of the first sliding window 283 facing the second sliding window 284 is provided with a through groove 2831, and the second sliding window 284 is provided with a through opening 2841. The through opening 2841 is connected to the heating cavity 211. When the first sliding window 283 and the second sliding window 284 cover the viewing window 214, the through groove 2831 is connected to the through opening 2841.

[0049] Reference Figure 2 and Figure 3 The limiting block 285 is slidably connected to the top wall of the heating chamber 211. The sliding direction of the limiting block 285 is parallel to the axis of the heating roller 27. The limiting block 285 is used to extend into the through port 2841 and through groove 2831. The fixing plate 286 is located on the side of the limiting block 285 away from the first sliding window 283. The fixing plate 286 is fixedly connected to the top wall of the heating chamber 211. One end of the shape memory alloy 287 is fixedly connected to the fixing plate 286, and the other end of the shape memory alloy 287 is fixedly connected to the limiting block 285.

[0050] Reference Figure 1 and Figure 2 The receiving assembly 3 is located on the side of the discharge port 213 away from the inlet 212. The receiving assembly 3 includes a discharge platform 31, a fixed frame 32, a third roller 33, a fourth roller 34, a support 35, a pressure roller 36, a scraper 37, and an air outlet duct 38. The length direction of the discharge platform 31 is parallel to the length direction of the heating box 21. The fixed frame 32 is fixedly connected to the end of the discharge platform 31 away from the heating box 21. The third roller 33 and the fourth roller 34 are both rotatably connected to the fixed frame 32 around their own axes. The height of the third roller 33 is greater than the height of the fourth roller 34. The rotation axes of the third roller 33 and the fourth roller 34 are both parallel to the width direction of the discharge platform 31. The third roller 33 is used to wind up the transfer film, and the fourth roller 34 is used to wind up the printing film. The transfer film passes sequentially through the first roller 13, the heating roller 27, and the third roller 33, while the printing film passes sequentially through the second roller 14, the support roller 26, and the fourth roller 34.

[0051] Reference Figure 1 The bracket 35 is fixedly connected to the upper end of the discharge platform 31, and the pressure roller 36 is rotatably connected to the bracket 35 around its own axis. The axis of the pressure roller 36 is parallel to the width direction of the discharge platform 31. The scraper 37 is located on the side of the pressure roller 36 away from the heating box 21. The scraper 37 is fixedly connected to the upper end of the discharge platform 31 and is used to abut against the surface of the transfer film facing the printing film. The upper end of the discharge platform 31 is provided with a material collection trough 311. The length direction of the material collection trough 311 is parallel to the length direction of the discharge platform 31. The air outlet duct 38 and the material collection trough 311 are respectively provided on both sides of the printing film. The air outlet duct 38 is located near the viewing window 214. The air outlet duct 38 is fixedly connected to the upper end of the discharge platform 31. The length direction of the air outlet duct 38 is parallel to the length direction of the discharge platform 31. The outer wall of the air outlet duct 38 is provided with multiple air outlets 381. The multiple air outlets 381 are evenly spaced along the length direction of the air outlet duct 38. The air outlets 381 face the upper surface of the printing film. The material collection trough 311 is used to collect impurities.

[0052] Reference Figure 4 and Figure 5 The auxiliary component 4 is located on the side of the discharge platform 31 near the viewing window 214. The auxiliary component 4 includes a support plate 41, a fan 42, a baffle 43, and a control component 44. The support plate 41 is fixedly connected to the outer wall of the discharge platform 31. The fan 42 is slidably connected to the upper end of the support plate 41. The sliding direction of the fan 42 is parallel to the length direction of the discharge platform 31. The outer wall of the heating box 21 is provided with a ventilation port 215. The ventilation port 215 is located below the viewing window 214 and is connected to the heating chamber 211. The baffle 43 is fixedly connected to the housing of the fan 42 and is used to cover the ventilation port 215. The air outlet 381 of the fan 42 is used to face the pipe opening of the air outlet 38 or the ventilation port 215.

[0053] The control component 44 is located on the outer periphery of the heating box 21. The control component 44 includes a first bevel gear 441, a connecting frame 442, a rotating shaft 443, a second bevel gear 444, a fixing ring 445, a bearing 446, a first hinge rod 447, a second hinge rod 448, and a spring 449. The end of the support roller 26 near the support plate 41 extends out of the heating box 21. The first bevel gear 441 is coaxially and fixedly connected to the end of the support roller 26 facing the support plate 41. The connecting frame 442 is fixedly connected to the upper end of the support plate 41. The rotating shaft 443 is rotatably connected to the connecting frame 442 around its own axis. The rotation axis of the rotating shaft 443 is parallel to the length direction of the heating box 21. The second bevel gear 444 is coaxially and fixedly connected to the outer wall of the rotating shaft 443. The first bevel gear 441 meshes with the second bevel gear 444.

[0054] Reference Figure 4 and Figure 5 A retaining ring 445 is located on the side of the outlet pipe 38 away from the ventilation port 215. The retaining ring 445 is coaxially fixedly connected to the rotating shaft 443. A bearing 446 is located on the side of the retaining ring 445 near the ventilation port 215. The inner ring of the bearing 446 is slidably connected to the rotating shaft 443. One end of the first hinge rod 447 is hinged to the outer wall of the retaining ring 445, and the other end of the first hinge rod 447 is hinged to one end of the second hinge rod 448. The other end of the second hinge rod 448 is hinged to the bearing 445. On the outer wall of 46, multiple first hinge rods 447 are provided, and the multiple first hinge rods 447 are evenly spaced around the axis of the fixed ring 445. Multiple second hinge rods 448 are provided, and the second hinge rods 448 are arranged in a one-to-one correspondence with the first hinge rods 447. A spring 449 is provided between the fixed ring 445 and the bearing 446. One end of the spring 449 abuts against the fixed ring 445, and the other end of the spring 449 abuts against the bearing 446. The inner ring of the bearing 446 is fixedly connected to the housing of the fan 42.

[0055] The implementation principle of the flexible packaging plateless roller transfer device in this application embodiment is as follows: the first roller 13 unwinds the transfer film, and the second roller 14 unwinds the printing film. The transfer film and the printing film pass under the exhaust plate 16. The transfer film and the printing film are bonded together and enter the heating chamber 211 through the feed port 212. The transfer film and the printing film pass between the feed roller 23 and the guide roller 22, between the heating roller 27 and the support roller 26, and between the discharge roller 25 and the traction roller 24 in sequence, and then leave the heating chamber 211 from the discharge port 213. The transfer film transfers the material on the film onto the printing film. The transfer film and the printing film pass through the discharge platform 31, and the air outlet 381 cools the transfer film and the printing film. The pressure roller 36 cools the transfer film and the printing film. The film is limited, the third roller 33 winds up the transfer film, the fourth roller 34 winds up the printing film, the scraper 37 cleans the transfer film, and impurities are collected in the collection trough 311 with the air. When the transfer film and printing film are used up and need to be replaced, the equipment stops running, the fan 42 slides to face the ventilation port 215, and outside air enters the heating chamber 211 from the ventilation port 215. The gas in the heating chamber 211 is discharged from the feed port 212 and the discharge port 213. When the temperature in the heating chamber 211 decreases, the shape memory alloy 287 restores its deformation, causing the limiting block 285 to move away from the second sliding window 284. People can open the first sliding window 283 or the second sliding window 284 to reduce the probability of hot air scalding the operators.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A flexible packaging plateless roller transfer device, characterized in that: The assembly includes a feeding component (1), a heating component (2), and a receiving component (3). The feeding component (1) includes a support frame (12), a first rotating roller (13), and a second rotating roller (14). The first rotating roller (13) and the second rotating roller (14) are rotatably connected to the support frame (12) around their own axes. The heating component (2) includes a heating box (21), a support roller (26), and a heating roller (27). The heating box (21) is provided with a heating chamber (211). The heating roller (27) and the support roller (26) are rotatably connected to the inner wall of the heating chamber (211) around their own axes. The receiving component... The material assembly (3) includes a fixed frame (32), a third roller (33) and a fourth roller (34). The third roller (33) and the fourth roller (34) are rotatably connected to the fixed frame (32) around their own axes. The axes of the first roller (13), the second roller (14), the third roller (33), the fourth roller (34), the support roller (26) and the heating roller (27) are all parallel to each other. The transfer film passes through the first roller (13), the heating roller (27) and the third roller (33) in sequence, and the printing film passes through the second roller (14), the support roller (26) and the fourth roller (34) in sequence. The receiving assembly (3) also includes a discharge platform (31), a bracket (35) and a pressure roller (36). The discharge platform (31) is located between the fixed frame (32) and the heating box (21). The bracket (35) is fixedly connected to the upper end of the discharge platform (31). The pressure roller (36) is rotatably connected to the bracket (35) around its own axis. The axis of the pressure roller (36) is parallel to the axis of the third rotating roller (33). The receiving assembly (3) also includes a scraper (37), which is located on the side of the pressure roller (36) away from the heating box (21). The scraper (37) is fixedly connected to the discharge platform (31) and is used to abut against the end of the transfer film facing the printing film. The receiving assembly (3) also includes an air outlet pipe (38). The upper end of the discharge platform (31) is provided with a collection trough (311). The length direction of the collection trough (311) is parallel to the length direction of the discharge platform (31). The air outlet pipe (38) and the collection trough (311) are respectively located on both sides of the printing film. The air outlet pipe (38) is fixedly connected to the upper end of the discharge platform (31). The opening of the air outlet pipe (38) faces the upper surface of the printing film. The collection trough (311) is used to collect impurities. The heating assembly (2) further includes a first slide rail (281), a second slide rail (282), a first sliding window (283), a second sliding window (284), a limiting block (285), a fixing plate (286), and a shape memory alloy (287). The heating box (21) has a viewing window (214) on its side wall, which is connected to the heating cavity (211). The first slide rail (281) and the second slide rail (282) are both fixedly connected to the inner wall facing upwards from the viewing window (214). The first slide rail (281) is located on the side of the second slide rail (282) away from the heating cavity (211). The length directions of the first slide rail (281) and the second slide rail (282) are both parallel to the length direction of the heating box (21). The first sliding window (283) is slidably connected to the first slide rail (281), and the second sliding window (284) is slidably connected to the second slide rail (285). The track (282), the first sliding window (283) and the second sliding window (284) are both used to cover the viewing window (214). The first sliding window (283) has a through groove (2831) at one end facing the second sliding window (284). The second sliding window (284) has an opening (2841). The opening (2841) is connected to the heating cavity (211). The through groove (2831) is used to connect the opening (2841). The limiting block (285) is slidably connected to the top wall of the heating cavity (211). The limiting block (285) is used to extend into the opening (2841) and the through groove (2831). The fixing plate (286) is fixedly connected to the top wall of the heating cavity (211). One end of the shape memory alloy (287) is fixedly connected to the fixing plate (286). The other end of the shape memory alloy (287) is fixedly connected to the limiting block (285). It also includes a support plate (41), a fan (42) and a baffle (43). The support plate (41) is fixedly connected to the outer wall of the discharge platform (31). The fan (42) is slidably connected to the support plate (41). The sliding direction of the fan (42) is parallel to the length direction of the discharge platform (31). The outer wall of the heating box (21) is provided with a ventilation port (215). The ventilation port (215) is located below the viewing window (214). The ventilation port (215) is connected to the heating chamber (211). The baffle (43) is fixedly connected to the housing of the fan (42). The baffle (43) is used to cover the ventilation port (215). The air outlet (381) of the fan (42) is used to face the pipe opening of the air outlet pipe (38) or the ventilation port (215). It also includes a control component (44), which is located on the outer periphery of the heating box (21). The control component (44) includes a first bevel gear (441), a connecting frame (442), a rotating shaft (443), a second bevel gear (444), a fixing ring (445), a bearing (446), a first hinge rod (447), a second hinge rod (448), and a spring (449). The first bevel gear (441) is coaxially fixedly connected to one end of the support roller (26) facing the support plate (41). The connecting frame (442) is fixedly connected to the outer wall of the heating box (21) facing the support plate (41). The rotating shaft (443) is rotatably connected to the connecting frame (442) around its own axis. The rotation axis of the rotating shaft (443) is parallel to the length direction of the heating box (21). The second bevel gear (444) is coaxially fixedly connected to the rotating shaft. The outer wall of (443) is connected to the first bevel gear (441), which meshes with the second bevel gear (444). The fixed ring (445) is coaxially fixedly connected to the rotating shaft (443). The bearing (446) is located on the side of the fixed ring (445) near the air vent (215). The inner ring of the bearing (446) is slidably connected to the rotating shaft (443). One end of the first hinge rod (447) is hinged to the outer wall of the fixed ring (445). The other end of the first hinge rod (447) is hinged to one end of the second hinge rod (448). The other end of the second hinge rod (448) is hinged to the outer wall of the bearing (446). One end of the spring (449) abuts against the fixed ring (445). The other end of the spring (449) abuts against the bearing (446). The inner ring of the bearing (446) is fixedly connected to the housing of the fan (42).

2. The flexible packaging plateless roller transfer device according to claim 1, characterized in that: The heating assembly (2) further includes a guide roller (22), a feed roller (23), a traction roller (24), and a discharge roller (25). The heating roller (27) is located above the support roller (26). The guide roller (22) and the feed roller (23) are both located on the side of the heating roller (27) near the first rotating roller (13). The feed roller (23) is located above the guide roller (22). The traction roller (24) and the discharge roller (25) are both located on the side of the heating roller (27) near the third rotating roller (33). The discharge roller (25) is located above the traction roller (24).

3. A flexible packaging plateless roller transfer printing process, applied to the flexible packaging plateless roller transfer printing device described in any one of claims 1-2, characterized in that: Includes the following steps: Print patterns on the transfer film; The pattern on the transfer film is imprinted onto the printing film by the heating component (2).

4. The flexible packaging plateless roller transfer printing process according to claim 3, characterized in that: The transfer membrane is made of PET.

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