A roll-to-roll printing structure for a 3D UV printer

Abstract

This application relates to the field of 3D UV printing technology, and in particular to a roll-to-roll printing structure for a 3D UV printer. The structure includes a material cylinder assembly for fixing roll material; a frame including opposing infeed and discharge ends, with the material cylinder assembly connected to the infeed end; a feeding mechanism with both ends extending through the infeed end; a middle frame plate disposed on the frame and located between the infeed and discharge ends for laying the roll material; a discharge mechanism with both ends extending through the discharge end; and a drive assembly including a drive motor and a transmission component. The drive motor is located on one side of the frame, and the transmission component is sleeved on the drive end of the drive motor, one end of the feeding mechanism, and one end of the discharge mechanism to drive the roll material for output. This application ensures the synchronization of feeding and discharging, reduces deviations in the roll material during transport, and improves printing accuracy, efficiency, and stability.

Description

Technical Field

[0001] This application relates to the field of 3D UV printing technology, and in particular to a roll-to-roll printing structure for a 3D UV printer. Background Technology

[0002] With the continuous development of 3D printing technology, 3D UV printers have demonstrated immense value in numerous fields such as industrial manufacturing, product design, and artistic creation. As the market's demands for printing accuracy, efficiency, and stability continue to increase, 3D UV printers also face many challenges and opportunities in roll-to-roll printing. In the traditional roll-to-roll printing process of 3D UV printers, multiple independent motors are typically used to drive the feeding and discharging processes to achieve the feeding and printing of the roll material. A simple roller structure is used to introduce the roll material during feeding, and another set of rollers is used to output the printed roll material during discharging. However, this multi-motor drive method not only increases the cost and complexity of the equipment but also makes it difficult to ensure the synchronization of feeding and discharging, easily leading to deviations in the roll material during transport. Utility Model Content

[0003] The purpose of this application is to overcome the above-mentioned technical problems and provide a roll-to-roll printing structure for a 3D UV printer that can ensure the synchronization of feeding and discharging, reduce the deviation of roll material during the conveying process, and improve the printing accuracy, efficiency and stability.

[0004] This application discloses a roll-to-roll printing structure for a 3D UV printer, specifically employing the following solution: A roll-to-roll printing structure for a 3D UV printer includes: a frame with an opposite feed end and a discharge end; a material cylinder assembly connected to the feed end for fixing roll material; a feeding mechanism with both ends passing through the feed end; a middle frame plate disposed on the frame and located between the feed end and the discharge end for laying roll material; a discharge mechanism with both ends passing through the discharge end; and a drive assembly including a drive motor and a transmission component. The drive motor is located on one side of the frame, and the transmission component is sleeved on the drive end of the drive motor, one end of the feed mechanism, and one end of the discharge mechanism to drive the roll material for output.

[0005] By adopting the above technical solutions, the barrel assembly can fix the roll material, preventing it from moving or loosening during printing and ensuring the continuity and stability of printing. The frame provides support and a foundation for the entire printing structure, and its infeed and discharge ends clearly define the conveying direction of the roll material. The feeding mechanism, located at the infeed end of the frame, smoothly conveys the roll material from the barrel assembly to the middle frame plate. The middle frame plate, located between the infeed and discharge ends, provides a laying surface for the roll material, keeping it flat during printing and improving print quality. The discharge mechanism, located at the discharge end of the frame, smoothly outputs the printed roll material. The drive motor and conveyor of the drive assembly, fitted at the drive end of the drive motor, one end of the feeding mechanism, and one end of the discharge mechanism, can drive the roll material to output, realizing automatic conveying of the roll material and improving printing efficiency.

[0006] Optionally, the feeding mechanism includes: a feeding drive wheel, with both ends passing through the feeding end, and one end for the conveying component to be sleeved, so as to rotate under the drive motor to convey the roll material; a feeding driven wheel, arranged parallel to the feeding drive wheel on the feeding end; a first pressing adjustment assembly, arranged on one side of the frame, and including a first lever and a first spring, the first lever being rotatably fixed on the frame, and one end sleeved on one end of the feeding driven wheel, one end of the first spring being hung on the frame, and the other end being used to movably hang the other end of the first lever to adjust the relative distance between the feeding drive wheel and the feeding driven wheel, and a first waist hole is provided on one side of the corresponding frame for one end of the feeding driven wheel to movably pass through.

[0007] By adopting the above technical solution, the feeding drive wheel is driven by the drive motor to rotate the transmission component, thereby realizing the conveying of the coil material; the feeding driven wheel is arranged in parallel with the feeding drive wheel, which can assist the feeding drive wheel in conveying the coil material better; the first clamping adjustment component can adjust the relative distance between the feeding drive wheel and the feeding driven wheel through the cooperation of the first lever and the first spring, thereby adjusting the clamping force on the coil material to adapt to the feeding requirements of different coil materials; the first waist hole provided on one side of the frame allows one end of the feeding driven wheel to be movably inserted, providing a space for adjusting the position of the feeding driven wheel and ensuring the realization of the clamping force adjustment function of the first clamping adjustment component.

[0008] Optionally, the discharge mechanism includes: a discharge drive wheel, with both ends passing through the discharge end, and one end for the conveyor to be sleeved, so as to rotate under the drive motor to output roll material; a discharge driven wheel, arranged parallel to the discharge drive wheel on the discharge end; a second clamping adjustment assembly, arranged on one side of the frame, and including a second lever and a second spring, the second lever being rotatably fixed on the frame, and one end sleeved on one end of the discharge driven wheel, one end of the second spring being hung on the frame, and the other end being used to movably hang the other end of the second lever to adjust the relative distance between the discharge drive wheel and the discharge driven wheel, and a second waist hole is provided on one side of the corresponding frame for one end of the discharge driven wheel to movably pass through.

[0009] By adopting the above technical solution, the discharge drive wheel is driven to rotate by a drive motor, realizing the output of the coil material; the discharge driven wheel is arranged in parallel with the discharge drive wheel, which can work together with the discharge drive wheel to better transport the coil material; the second clamping adjustment component can adjust the relative distance between the discharge drive wheel and the discharge driven wheel through the second lever and the second spring, thereby adjusting the clamping force and ensuring the stability of the coil material during transportation; the second waist hole provided on one side of the frame allows one end of the discharge driven wheel to be movably inserted, providing the second clamping adjustment component with the activity space to adjust the distance between the two wheels, ensuring the realization of the adjustment function.

[0010] Optionally, the material cylinder assembly includes: two connectors, which are respectively connected to both sides of the frame, and the connectors are provided with slots; and a material cylinder, which is hung at both ends in the two slots for feeding rolled material.

[0011] By adopting the above technical solution, two connectors are set to connect to both sides of the frame respectively. The connectors are provided with slots to stably connect the material cylinder to the frame. The two ends of the material cylinder are hung in the two slots respectively, which facilitates the installation and disassembly of the material cylinder. The material cylinder is used to provide roll material, which can realize the orderly placement of roll material and facilitate the use of roll material in subsequent printing operations.

[0012] Optionally, the feeding mechanism further includes: a feeding tensioning wheel, disposed at the feeding end, located between the material cylinder assembly and the feeding drive wheel; and a tensioning wheel limiting cover, located on the outside of the frame, for screwing the cover onto both ends of the feeding tensioning wheel.

[0013] By adopting the above technical solution, the feeding tensioning wheel is set at the feeding end and located between the material cylinder assembly and the feeding drive wheel. It can tension the coil material, ensuring the tension of the coil material is stable during the conveying process, and allowing the coil material to enter the feeding drive wheel more smoothly. The tensioning wheel limit cover is located on the outside of the frame. The cover is set at both ends of the feeding tensioning wheel and can limit and protect the feeding tensioning wheel, preventing displacement or damage from external factors during operation, and ensuring the normal operation of the feeding tensioning wheel.

[0014] Optionally, the drive assembly further includes an idler wheel, disposed on one side of the frame, near the drive end of the drive motor, for mounting the conveyor component.

[0015] By adopting the above technical solution, the idler wheel is set on one side of the frame and close to the drive end of the drive motor for the conveying component to be fitted. This can change the transmission direction of the conveying component, so that the drive motor can drive the feeding mechanism and the discharging mechanism more reasonably, improve the flexibility and stability of power transmission, and ensure that the coil material can be output smoothly.

[0016] Optionally, the discharge mechanism further includes: a correction component, disposed at the discharge end, and including: a conveying baffle, both ends of which are fixed inside the frame for discharging the roll material; and two correction baffles, adjustablely disposed on the conveying baffle, located on both sides of the output roll material, for adjusting the output direction of the roll material.

[0017] By adopting the above technical solution, the two ends of the conveying baffle are fixed inside the frame, which can provide a stable channel for the output of the roll material and ensure the smooth output process of the roll material; the correction baffle is set as two and adjustable on the conveying baffle, located on both sides of the output roll material, which can flexibly adjust the output direction of the roll material to avoid the roll material from deviating during output and ensure accurate output of the roll material.

[0018] Optionally, the barrel component includes: a barrel wheel; two clamping sleeves, respectively fitted onto both ends of the barrel wheel; and two limiting sleeves, respectively fixed to both ends of the clamping sleeves away from the barrel wheel, wherein the slot abuts between the limiting sleeves and the clamping sleeves.

[0019] By adopting the above technical solution, the material cylinder wheel can be used to hold the roll material, providing support and a foundation for its placement; the clamping sleeve is fitted at both ends of the material cylinder wheel, which can fix the roll material and prevent it from sliding or shifting on the material cylinder wheel; the limiting sleeve is fixed at both ends of the clamping sleeve away from the material cylinder wheel, and the slot is abutted between the limiting sleeve and the clamping sleeve, which can limit the position of the material cylinder on the connector, ensuring the stability of the material cylinder on the frame, and thus ensuring that the roll material can be stably conveyed during the printing process.

[0020] Optionally, it also includes: a mounting base plate disposed on one side of the frame relative to the middle frame plate for fixing to the printing device; and a control board fixed on the mounting base plate and electrically connected to the drive motor and the printing device.

[0021] By adopting the above technical solution, the mounting base plate is set on one side of the frame relative to the middle frame plate, which can be fixed to the printing equipment, so that the printing structure can be stably installed on the printing equipment; the control board is fixed on the mounting base plate and electrically connected to the drive motor and the printing equipment, which can realize the control of the drive motor, thereby controlling the conveying of the roll material, and at the same time, it can also interact with the printing equipment to ensure the smooth progress of the printing process.

[0022] Optionally, it also includes: housings, configured as two, which are positioned opposite each other on both sides of the frame.

[0023] By adopting the above technical solution, two shells are set up opposite each other on both sides of the frame, which can protect the internal structure of the frame and prevent the components inside the frame from being contaminated and damaged by external dust, debris, etc. At the same time, it can also play a certain protective role, reduce the risk of injury caused by accidental contact with moving parts inside the frame, and improve the overall aesthetics of the roll-to-roll printing structure of the 3D UV printer.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By using a drive component to drive the feeding and discharging mechanisms, a single drive motor is used to realize the feeding and discharging of roll materials, reducing equipment costs and complexity; 2. The drive component drives the feeding mechanism and the discharging mechanism to operate synchronously, ensuring the synchronization of feeding and discharging and avoiding deviation of the coil material during the conveying process; 3. The feeding and discharging mechanisms are equipped with clamping adjustment components, which can adjust the relative distance between the driving wheel and the driven wheel, adjust the clamping force, and ensure the stability of the roll material conveying. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a 3D UV printer roll-to-roll printing structure that clamps a cylindrical object, as disclosed in an embodiment of this application. Figure 2 for Figure 1 A partially exploded structural diagram of a roll-to-roll printing structure for a 3D UV printer is disclosed. Figure 3 for Figure 1 A partially exploded structural diagram of a roll-to-roll printing structure for a 3D UV printer is disclosed. Figure 4 for Figure 1 A schematic diagram of another angle of a roll-to-roll printing structure for a 3D UV printer; Figure 5 This is a three-dimensional structural diagram of the roll-to-roll printing structure and printing equipment assembly of a 3D UV printer disclosed in this application.

[0026] Explanation of reference numerals in the attached figures: 10. Frame; 101. Feeding end; 102. Discharge end; 20. Material cylinder assembly; 21. Connector; 211. Slot; 22. Material cylinder component; 221. Material cylinder wheel; 222. Clamping sleeve; 223. Limiting sleeve; 30. Feeding mechanism; 31. Feeding drive wheel; 32. Feeding driven wheel; 33. First clamping adjustment assembly; 331. First lever component; 332. First spring component; 34. Feeding tension wheel; 35. Tensioner. 40. Tightening wheel limit cover; 50. Middle frame plate; 51. Discharge mechanism; 52. Discharge drive wheel; 53. Discharge driven wheel; 54. Second clamping adjustment assembly; 551. Second lever component; 552. Second spring component; 56. Correction assembly; 571. Conveying baffle; 582. Correction baffle; 60. Drive assembly; 61. Drive motor; 62. Conveying component; 63. Idler wheel; 70. Mounting base plate; 80. Control board; 90. Housing. Detailed Implementation

[0027] The terminology used in the following embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” and “this” are intended to include the plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this application refers to and includes any or all possible combinations of one or more of the listed items.

[0028] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0029] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0030] See Figure 1 , Figure 2 and Figure 3The present application discloses a roll-to-roll printing structure for a 3D UV printer, comprising a frame 10, a material cylinder assembly 20, a feeding mechanism 30, a middle frame plate 40, a discharge mechanism 50, and a drive assembly 60.

[0031] The frame 10 includes a feed end 101 and a discharge end 102. A material cylinder assembly 20 is connected to the feed end 101 to fix the roll material. A feeding mechanism 30 has both ends passing through the feed end 101. A middle frame plate 40 is disposed on the frame 10, located between the feed end 101 and the discharge end 102, for laying the roll material. A discharge mechanism 50 has both ends passing through the discharge end 102. See also... Figure 4 The drive motor 61 of the drive assembly 60 is located on one side of the frame 10. The conveyor 62, i.e. the conveyor belt, is sleeved on the drive end of the drive motor 61, one end of the feeding mechanism 30 and one end of the discharging mechanism 50, driving the roll material to output. This arrangement allows one drive motor 61 to drive the feeding and discharging simultaneously, reducing equipment cost and complexity, while also ensuring the synchronization of feeding and discharging, and avoiding deviation in the conveying of the roll material.

[0032] For details, see Figure 2 and Figure 4 The feeding mechanism 30 includes a feeding drive wheel 31, a feeding driven wheel 32, and a first clamping adjustment assembly 33. The feeding drive wheel 31 has both ends inserted into the feeding end 101, with one end fitted onto the conveying component 62. Driven by the drive motor 61, it rotates to convey the rolled material. The feeding drive wheel 31 is cylindrical, and its surface can be made of rubber to increase friction; alternatively, it can be replaced with other materials with a certain degree of friction, such as silicone. The feeding driven wheel 32 is arranged parallel to the feeding drive wheel 31 on the feeding end 101. Its shape is similar to the feeding drive wheel 31, and its material can also be the same.

[0033] The first clamping adjustment assembly 33 is disposed on one side of the frame 10 and includes a first lever 331 and a first spring 332. The first lever 331 is rotatably fixed to the frame 10, with one end sleeved on one end of the feed driven wheel 32. One end of the first spring 332 is hung on the frame 10, and the other end is movably hung on the other end of the first lever 331. The structure of the first lever 331 is as follows: Figure 2 As shown, the first spring component 332 is a helical spring.

[0034] In this embodiment, by adjusting whether the frame 10 and the first lever 331 are simultaneously attached to both ends of the first spring 332, the position of the first lever 331 can be changed, thereby adjusting the relative distance between the feeding drive wheel 31 and the feeding driven wheel 32, and thus adjusting the clamping force. A first waist hole (not shown in the figure) is provided on one side of the corresponding frame 10, allowing one end of the feeding driven wheel 32 to pass through, providing space for adjusting the position of the feeding driven wheel 32. This allows the end of the feeding driven wheel 32 to slide within the first waist hole to accommodate distance adjustments. The feeding drive wheel 31 and the feeding driven wheel 32 cooperate with each other. When the feeding drive wheel 31 rotates, the feeding driven wheel 32 also rotates under the influence of the rolled material. Simultaneously, the first clamping adjustment assembly 33 ensures that both have appropriate clamping force on the rolled material, enabling stable conveying of the rolled material.

[0035] For details, see Figure 2 and Figure 4 The discharge mechanism 50 includes a discharge drive wheel 51, a discharge driven wheel 52, and a second clamping adjustment assembly 53. The discharge drive wheel 51 has both ends mounted on the discharge end 102, with one end fitted by the conveyor 62. Driven by the drive motor 61, it rotates to output the rolled material. The structure of the discharge drive wheel 51 is similar to that of the feed drive wheel 31, and different materials can be used to increase friction. The discharge driven wheel 52 is arranged parallel to the discharge drive wheel 51 on the discharge end 102, and its shape and material are similar to those of the feed driven wheel 32.

[0036] The second clamping adjustment assembly 53 is disposed on one side of the frame 10 and includes a second lever 531 and a second spring 532. The second lever 531 is rotatably fixed to the frame 10, with one end sleeved on one end of the discharge driven wheel 52. One end of the second spring 532 is hung on the frame 10, and the other end is movably hung on the other end of the second lever 531. The second lever 531 is similar to the first lever 331, and both the second spring 532 and the first spring 332 are helical springs.

[0037] In this embodiment, by adjusting whether the frame 10 and the second lever 531 are simultaneously attached to both ends of the second spring 532, the position of the second lever 531 can be changed, thereby adjusting the relative distance between the discharge drive wheel 51 and the discharge driven wheel 52, and thus adjusting the clamping force. A second waist hole (not shown in the figure) is provided on one side of the corresponding frame 10, through which one end of the discharge driven wheel 52 can slide. The discharge drive wheel 51 and the discharge driven wheel 52 cooperate with each other. When the discharge drive wheel 51 rotates, the discharge driven wheel 52 rotates under the influence of the roll material. The second clamping adjustment component 53 ensures that both have appropriate clamping force on the roll material, allowing the printed roll material to be output stably.

[0038] See Figure 2 and Figure 3 The barrel assembly 20 includes a connector 21 and a barrel component 22. Two connectors 21 are provided, respectively connected to both sides of the frame 10, and each connector 21 has a slot 211. The connectors 21 are metal plates, fixed to the frame 10 by bolts or welding. The barrel component 22 is hung in the two slots 211 at both ends.

[0039] The material cylinder component 22 includes a material cylinder wheel 221, a clamping sleeve 222, and a limiting sleeve 223. The material cylinder wheel 221 is, for example, a hollow cylinder made of metal or plastic. Two clamping sleeves 222 are provided, respectively fitted onto both ends of the material cylinder wheel 221, to fix the rolled material and prevent it from sliding on the material cylinder wheel 221. Two limiting sleeves 223 are provided, respectively fixed at the ends of the clamping sleeves 222 away from the material cylinder wheel 221. A slot 211 abuts against the limiting sleeve 223 and the clamping sleeve 222, thus restricting the position of the material cylinder component 22 within the slot 211 and ensuring its stability.

[0040] See Figure 4 The feeding mechanism 30 also includes a feeding tensioning wheel 34 and a tensioning wheel limiting cover 35. The feeding tensioning wheel 34 is located at the feeding end 101, between the material cylinder assembly 20 and the feeding drive wheel 31, and is used to tension the rolled material, allowing it to enter the feeding mechanism 30 more smoothly. The feeding tensioning wheel 34 is cylindrical with a smooth surface, reducing friction with the rolled material. The tensioning wheel limiting cover 35 is located on the outside of the frame 10 and is screwed onto both ends of the feeding tensioning wheel 34 to prevent axial movement of the feeding tensioning wheel 34. The tensioning wheel limiting cover 35 can be made of plastic or metal, and its external structure is as follows... Figure 4 As shown, there is a threaded hole in the middle, which is connected to the end of the feed tensioning wheel 34 by thread. In addition, a hole for screws to pass through can be provided on the edge of the tensioning wheel limiting cover 35, so as to fix the tightened tensioning wheel limiting cover 35 back to the frame 10.

[0041] See Figure 4 The drive assembly 60 also includes an idler wheel 63, located on one side of the frame 10, near the drive end of the drive motor 61, for mounting the conveyor component 62. In this embodiment, multiple idler wheels can be provided, for example, two, located on either side of the drive end of the drive motor 61. The fixed position of the idler wheel 63 can change the transmission direction of the conveyor component 62, making the transmission more efficient. The idler wheel 63 is typically circular with grooves on its surface for the conveyor component 62 to embed into; its material can be metal or plastic.

[0042] See Figure 2 and Figure 4The discharge mechanism 50 also includes a correction assembly 54 disposed at the discharge end 102. The correction assembly 54 includes a conveying baffle 541 and a correction baffle 542. The two ends of the conveying baffle 541 are fixed to the inside of the frame 10 to supply the roll material for output and ensure the stability of the output path of the roll material. The conveying baffle 541 is flat and made of metal or plastic. Two correction baffles 542 are provided and are adjustablely disposed on the conveying baffle 541, located on both sides of the output roll material, to adjust the output direction of the roll material. The position of the correction baffles 542 can be adjusted on the conveying baffle 541 by means of bolts, etc. When the roll material deviates, the position of the correction baffles 542 can be adjusted to bring the roll material back to the correct output direction.

[0043] See Figure 4 and Figure 5 The printing structure also includes a mounting base plate 70 and a control board 80. The mounting base plate 70 is disposed on one side of the frame 10 opposite the middle frame plate 40 for assembly and fixation with the printing equipment. The mounting base plate 70 is provided with abutment holes for abutment and fixation by the abutment parts of the printing equipment. Of course, the specific assembly method is not limited here. The control board 80 is fixed on the mounting base plate 70 and electrically connected to the drive motor 61 and the printing equipment. The control board 80 can control the speed and start / stop of the drive motor 61 to achieve precise control of the roll material feeding.

[0044] See Figure 1 and Figure 2 The printing structure also includes two housings 90, which are positioned opposite each other on both sides of the frame 10. The housings 90 can protect the internal mechanism and prevent dust and other impurities from entering, while also providing a certain degree of protection.

[0045] The implementation principle of this embodiment is as follows: a drive motor 61 and a conveyor 62 drive the feeding mechanism 30 and the discharging mechanism 50, reducing equipment cost and complexity, ensuring the synchronization of feeding and discharging, and avoiding deviation in the conveying of roll material. The clamping adjustment components in the feeding mechanism 30 and the discharging mechanism 50 can adjust the clamping force to ensure stable conveying and output of roll material. The material cylinder assembly 20 can stably fix the roll material, the feeding tension wheel 34 allows the roll material to smoothly enter the feeding mechanism 30, the idler wheel 63 makes the transmission more reasonable, the correction component 54 can adjust the output direction of the roll material, the mounting base plate 70 facilitates connection with the printing equipment, the control board 80 achieves precise control, and the housing 90 provides protection. The overall structure improves the accuracy, efficiency, and stability of roll printing in the 3D UV printer, which is a significant improvement compared to the traditional method of multiple independent motor drives.

[0046] 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 roll-to-roll printing structure for a 3D UV printer, characterized in that, include: The frame (10) includes a feed end (101) and a discharge end (102) opposite each other. A material cylinder assembly (20), connected to the feed end (101), is used to fix the roll material; The feeding mechanism (30) has both ends inserted through the feeding end (101); A middle frame plate (40) is disposed on the frame (10) and located between the feed end (101) and the discharge end (102) for laying roll material; The discharge mechanism (50) is mounted on the discharge end (102) at both ends; The drive assembly (60) includes a drive motor (61) and a conveyor (62). The drive motor (61) is located on one side of the frame (10). The conveyor (62) is sleeved on the drive end of the drive motor (61), one end of the feeding mechanism (30) and one end of the discharging mechanism (50) to drive the roll material to be output.

2. The printed structure of claim 1, wherein, The feeding mechanism (30) includes: The feed drive wheel (31) is mounted on the feed end (101) at both ends, and one end is used for the conveyor (62) to be fitted on, so as to be driven by the drive motor (61) to rotate and convey the roll material. The feed driven wheel (32) is arranged side by side with the feed driving wheel (31) on the feed end (101); The first clamping adjustment component (33) is disposed on one side of the frame (10) and includes a first lever (331) and a first spring (332). The first lever (331) is rotatably fixed on the frame (10) and one end is sleeved on one end of the feed driven wheel (32). One end of the first spring (332) is hung on the frame (10) and the other end is used to movably hang the other end of the first lever (331) to adjust the relative distance between the feed drive wheel (31) and the feed driven wheel (32). A first waist hole is provided on one side of the frame (10) for one end of the feed driven wheel (32) to movably pass through.

3. The printed structure of claim 1, wherein, The discharge mechanism (50) includes: The discharge drive wheel (51) is mounted on the discharge end (102) at both ends, and one end is used for the conveyor (62) to be fitted on, so as to be rotated by the drive motor (61) to output the roll material. The driven wheel (52) for discharging is arranged in parallel with the driving wheel (51) for discharging on the discharge end (102); The second clamping adjustment component (53) is provided on one side of the frame (10) and includes a second lever (531) and a second spring (532). The second lever (531) is rotatably fixed on the frame (10) and one end is sleeved on one end of the discharge driven wheel (52). One end of the second spring (532) is hung on the frame (10) and the other end is used to movably hang the other end of the second lever (531) to adjust the relative distance between the discharge driving wheel (51) and the discharge driven wheel (52). A second waist hole is provided on one side of the frame (10) for one end of the discharge driven wheel (52) to movably pass through.

4. The printed structure of claim 2, wherein, The barrel assembly (20) includes: Two connectors (21) are provided, which are respectively connected to both sides of the frame (10), and the connectors (21) are provided with slots (211). The material cylinder (22) is hung at both ends in the two slots (211) for the application of rolled material.

5. The printing structure according to claim 2, characterized in that, The feeding mechanism (30) further includes: The feed tensioning wheel (34) is disposed at the feed end (101) and located between the feed cylinder assembly (20) and the feed drive wheel (31); The tension wheel limit cover (35) is located on the outside of the frame (10) and is used to screw the cover on both ends of the feed tension wheel (34).

6. The printing structure according to claim 1, characterized in that, The drive assembly (60) further includes an idler wheel (63), which is disposed on one side of the frame (10), close to the drive end of the drive motor (61), for the transmission component (62) to be fitted onto.

7. The printing structure according to claim 1, characterized in that, The discharge mechanism (50) further includes: a correction component (54), disposed at the discharge end (102), and comprising: The material conveying baffle (541) is fixed at both ends to the inside of the frame (10) for the output of roll material; Two correction baffles (542) are provided and are adjustablely installed on the conveying baffle (541) on both sides of the output roll material to adjust the output direction of the roll material.

8. The printing structure according to claim 4, characterized in that, The barrel component (22) includes: Barrel wheel (221); Two clamping sleeves (222) are provided, which are respectively sleeved on both ends of the barrel wheel (221); Two limiting sleeves (223) are provided, which are respectively fixed at both ends of the clamping sleeve (222) away from the barrel wheel (221), wherein the slot (211) abuts between the limiting sleeve (223) and the clamping sleeve (222).

9. The printing structure according to claim 1, characterized in that, Also includes: Mounting base plate (70) is disposed on one side of the frame (10) relative to the middle frame plate (40) for fixing to the printing device; The control board (80) is fixed on the mounting base plate (70), electrically connected to the drive motor (61), and electrically connected to the printing device.

10. The printing structure according to claim 1, characterized in that, Also includes: The housing (90) is configured as two, which are respectively covered on both sides of the frame (10).

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