A sun visor printing machine feeding structure

Abstract

The utility model discloses a light -shielding sheet printing machine feeding structure, including the bottom plate, the top fixed connection of bottom plate has the support frame, both sides in the inside of support frame are all rotationally connected with the guide roller. The utility model discloses a guide roller on support frame can provide stable direction for light -shielding sheet conveying, and the tensioning roller of support frame cooperation limit rod and fixed frame installation can be flexibly adjusted light -shielding sheet tightness under the action of the tensioning mechanism, prevent the light -shielding sheet wrinkle influence subsequent printing that is caused by too loose, avoid the light -shielding sheet damage that is caused by too tight, improve the feeding quality, and the deviation rectifying mechanism can be effective to the light -shielding sheet before and after direction Limit, ensure that the light -shielding sheet always along the preset path conveying, guarantee and the accurate butt joint of printing machine, reduce the printing deviation, and the static electricity mechanism can remove the static electricity on the light -shielding sheet surface, and the device has the advantages of good feeding effect and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of light-shielding sheet processing technology, specifically to a feeding structure for a light-shielding sheet printing machine. Background Technology

[0002] As a core functional component of electronic devices (such as smartphone displays, tablet camera modules, and laptop backlight components), light-shielding sheets require precision printing processes to form a light-shielding layer, markings, or functional coatings on their surface. This places extremely high demands on printing accuracy, surface cleanliness, and transport stability. In the mass production of light-shielding sheets, the feeding process of the printing press directly determines the subsequent printing quality and production efficiency, making it a crucial step in ensuring a smooth processing flow. The feeding structure of current light-shielding film printing machines generally suffers from the following technical defects, making it difficult to meet the requirements of high-precision production: I. Insufficient tension adjustment precision and cumbersome operation: Existing feeding structures mostly use manual knobs to adjust the height of the tension rollers or passive tensioning through fixed elastic components. Manual adjustment relies on operator experience and cannot accurately control the tension of the light-shielding sheet. Too loose a tension can cause wrinkles and misalignment of the light-shielding sheet during transport, affecting printing alignment accuracy; too tight a tension can cause thin light-shielding sheets to stretch, deform, or even break, increasing the scrap rate. Furthermore, passive tensioning structures lack real-time pressure feedback, so the tension changes drastically when the unwinding diameter of the light-shielding sheet changes or the transport speed fluctuates, making it impossible to maintain a stable transport state. II. Lack of correction function: During unwinding, the light-shielding sheet is prone to misalignment in the front-to-back direction (perpendicular to the transport direction) due to issues such as material cutting deviation and insufficient concentricity of the unwinding shaft. Some existing feeding structures do not have a dedicated correction mechanism and rely solely on the limiting effect of the guide rollers, which cannot actively correct the misalignment.

[0003] Therefore, it is necessary to redesign and modify the feeding structure of the light-shielding film printing machine to effectively prevent poor feeding performance. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a feeding structure for a light-shielding film printing machine, which has the advantages of good feeding effect and ease of use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a feeding structure for a light-shielding sheet printing machine, comprising a base plate, a support frame fixedly connected to the top of the base plate, guide rollers rotatably connected to both sides inside the support frame, a support frame fixedly connected to the top of the support frame, limit rods slidably connected to the front and rear sides inside the support frame, a fixing frame fixedly connected to the bottom of the limit rods, a tensioning roller rotatably connected inside the fixing frame, a tensioning mechanism provided above the support frame, a correction mechanism provided at the top of the base plate, and an anti-static mechanism provided on the right side of the support frame. The tensioning mechanism can adjust the tensioning roller to move up or down, thereby adjusting the tension of the light-shielding sheet. The correction mechanism can limit the light-shielding sheet in the front-back direction. The anti-static mechanism can remove static electricity from the surface of the light-shielding sheet.

[0006] In a preferred embodiment of this invention, the tensioning mechanism includes an electric telescopic rod fixedly connected to the top of the support frame. Guide rods are fixedly connected to all four sides of the top of the support frame. The same movable plate is slidably connected to the surfaces of the four guide rods. A pressure detector is fixedly connected to the top of the movable plate. The output end of the electric telescopic rod extends to the bottom of the support frame and is fixedly connected to the top of the pressure detector. A compression spring is sleeved on the surface of the guide rod. The bottom end of the compression spring is fixedly connected to the top of the support frame, and the top end of the compression spring is fixedly connected to the bottom of the movable plate.

[0007] In a preferred embodiment of this utility model, the correction mechanism includes a drive box fixedly connected to the top of the base plate. Sliders are slidably connected to the front and rear sides of the drive box. A threaded rod with positive and negative threads is rotatably connected inside the drive box. The threaded rod with positive and negative threads is threadedly connected to the slider. A servo motor is fixedly connected to the front of the support frame. The output end of the servo motor is fixedly connected to the threaded rod with positive and negative threads. A limit frame is fixedly connected to the top of the slider. Openings are provided on both sides of the front of the limit frame. The inner wall of the opening is in contact with the surface of the guide roller.

[0008] As a preferred embodiment of this utility model, a bearing is fixedly connected inside the drive box, and the outer ring of the bearing is fixedly connected to the drive box, while the inner ring of the bearing is fixedly connected to the threaded rod.

[0009] As a preferred embodiment of this utility model, the static elimination mechanism includes brackets fixedly connected to the front and rear sides of the right side of the support frame, and an upper ion nozzle row and a lower ion nozzle row are fixedly connected between the two brackets respectively. A high-voltage ion generator is fixedly connected to the top of the base plate, and the output end of the high-voltage ion generator is connected to the air inlet of the upper ion nozzle row and the air inlet of the lower ion nozzle row through a splitter.

[0010] As a preferred embodiment of this utility model, the front and back of the base plate are fixedly connected to mounting brackets, the surface of the mounting brackets is provided with mounting openings, and the surface of the compression spring is provided with an anti-rust coating.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses guide rollers on the support frame to provide stable guidance for the conveying of light-shielding sheets, avoiding deviation or jamming during the conveying process and ensuring smooth feeding. The support frame, together with the tensioning rollers installed on the limiting rod and the fixed frame, can flexibly adjust the tension of the light-shielding sheets under the action of the tensioning mechanism. This prevents the light-shielding sheets from being too loose, which would cause wrinkles and affect subsequent printing, and also prevents them from being too tight, which would damage the light-shielding sheets, thus improving the feeding quality. The correction mechanism can effectively limit the forward and backward direction of the light-shielding sheets, ensuring that the light-shielding sheets are always conveyed along the preset path, ensuring accurate docking with the printing press and reducing printing deviations. The anti-static mechanism can remove static electricity from the surface of the light-shielding sheets, preventing static electricity from attracting dust and impurities and affecting the printing effect. At the same time, it prevents static electricity from causing the light-shielding sheets to stick together, further ensuring smooth and stable feeding. This device has the advantages of good feeding effect and ease of use.

[0012] 2. This utility model provides stable power for tension adjustment through an electric telescopic rod, which can precisely control the up-and-down movement of the movable plate, thereby driving the tension roller to adjust its position. The guide rod guides the movement of the movable plate, preventing it from shifting or wobbling during movement, ensuring smooth tension roller adjustment, and guaranteeing uniform force on the light-shielding sheet. The pressure detector can sense the pressure between the movable plate and the fixed frame in real time, thereby accurately judging the tension of the light-shielding sheet. This allows operators or the control system to adjust the output of the electric telescopic rod according to the actual situation, achieving precise control of tension and preventing over-tensioning from damaging the light-shielding sheet or under-tensioning from affecting the conveying process. The compression spring acts as a buffer, absorbing slight fluctuations during the conveying of the light-shielding sheet through its own elasticity, maintaining a stable tension state, and preventing sudden changes in tension from adversely affecting the light-shielding sheet, further improving the stability and safety of the light-shielding sheet conveying process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the tensioning mechanism of this utility model; Figure 3 This is a schematic diagram of the correction mechanism of this utility model; Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0014] In the diagram: 1. Base plate; 2. Support frame; 3. Support bracket; 4. Limiting rod; 5. Fixing bracket; 6. Tensioning roller; 7. Electric telescopic rod; 8. Guide rod; 9. Movable plate; 10. Pressure detector; 11. Compression spring; 12. Drive box; 13. Slider; 14. Limiting bracket; 15. Through port; 16. Positive and negative threaded rod; 17. Servo motor; 18. Bracket; 19. Upper ion nozzle row; 20. Lower ion nozzle row; 21. High-pressure ion generator; 22. Mounting bracket; 23. Guide roller. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1 to 4As shown, a feeding structure for a light-shielding sheet printing machine includes a base plate 1. A support frame 2 is fixedly connected to the top of the base plate 1. Guide rollers 23 are rotatably connected to both sides inside the support frame 2. A support frame 3 is fixedly connected to the top of the support frame 2. Limiting rods 4 are slidably connected to the front and rear sides inside the support frame 3. A fixing frame 5 is fixedly connected to the bottom of the limiting rods 4. A tensioning roller 6 is rotatably connected inside the fixing frame 5. A tensioning mechanism is provided above the support frame 3. A correction mechanism is provided at the top of the base plate 1. An anti-static mechanism is provided on the right side of the support frame 2. The tensioning mechanism can adjust the tensioning roller 6 to move up or down, thereby adjusting the tension of the light-shielding sheet. The correction mechanism can limit the light-shielding sheet in the front-to-back direction. The anti-static mechanism can remove static electricity from the surface of the light-shielding sheet. A retractable protective sleeve is fitted on the surface of the threaded rod 16 to prevent debris from adhering to the surface of the threaded rod 16. The retractable protective sleeve is a common existing technology. The retractable protective sleeve is not shown. The device is equipped with an external controller, which can be, but is not limited to, Siemens S7-12001214C. The controller can be used to control the start and stop of electrical appliances in the device in real time. The upper ion nozzle row 19, the lower ion nozzle row 20 and the high-voltage ion generator 21 are all common existing technologies and are common knowledge to those skilled in the art. This application will not describe them in detail. The standard parts used in this utility model can be purchased from the market. The irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art. These will not be described in detail here. The contents not described in detail in this specification are common existing technologies known to those skilled in the art. This application will not describe them in detail.

[0017] refer to Figure 2 The tensioning mechanism includes an electric telescopic rod 7 fixedly connected to the top of the support frame 3. Guide rods 8 are fixedly connected to all four sides of the top of the fixed frame 5. The same movable plate 9 is slidably connected to the surfaces of the four guide rods 8. A pressure detector 10 is fixedly connected to the top of the movable plate 9. The output end of the electric telescopic rod 7 extends to the bottom of the support frame 3 and is fixedly connected to the top of the pressure detector 10. A compression spring 11 is sleeved on the surface of the guide rod 8. The bottom end of the compression spring 11 is fixedly connected to the top of the fixed frame 5, and the top end of the compression spring 11 is fixedly connected to the bottom of the movable plate 9.

[0018] As a technical optimization of this utility model, the electric telescopic rod 7 provides stable power for tension adjustment, which can precisely control the up and down movement of the movable plate 9, thereby driving the tension roller 6 to adjust its position. The guide rod 8 guides the movement of the movable plate 9, preventing it from shifting or wobbling during movement, ensuring smooth adjustment of the tension roller 6, and ensuring uniform force on the light-shielding sheet. The pressure detector 10 can sense the pressure between the movable plate 9 and the fixed frame 5 in real time, thereby accurately judging the tension of the light-shielding sheet. This allows the operator or control system to adjust the output of the electric telescopic rod 7 according to the actual situation, achieving precise control of the tension and preventing excessive tension from damaging the light-shielding sheet or insufficient tension from affecting the conveying. The compression spring 11 acts as a buffer, absorbing fluctuations during the conveying of the light-shielding sheet through its own elasticity, maintaining a stable tension state, and preventing sudden changes in tension from adversely affecting the light-shielding sheet, further improving the stability and safety of the light-shielding sheet conveying during the feeding process.

[0019] refer to Figure 3 The correction mechanism includes a drive box 12 fixedly connected to the top of the base plate 1. Slider 13 is slidably connected to the front and rear sides inside the drive box 12. A threaded rod 16 with positive and negative threads is rotatably connected inside the drive box 12. The threaded rod 16 with positive and negative threads is threadedly connected to the slider 13. A servo motor 17 is fixedly connected to the front of the support frame 2. The output end of the servo motor 17 is fixedly connected to the threaded rod 16 with positive and negative threads. A limit frame 14 is fixedly connected to the top of the slider 13. Openings 15 are provided on both sides of the front of the limit frame 14. The inner wall of the opening 15 is in contact with the surface of the guide roller 23.

[0020] As a technical optimization of this utility model, the servo motor 17 provides a stable and precise driving force, driving the threaded rod 16 to rotate smoothly within the drive box 12, ensuring the controllability of the adjustment process. The threaded connection design between the threaded rod 16 and the slider 13 allows the rotating threaded rod to drive the sliders 13 on both sides to move synchronously in opposite directions, thereby driving the limiting frame 14 to adjust synchronously. This ensures symmetrical limiting adjustment of the front and rear sides of the light-shielding sheet, avoiding unilateral adjustment that could cause the light-shielding sheet to shift, and improving the symmetry and accuracy of the correction. The through-hole 15 on the limiting frame 14 fits against the surface of the guide roller 23, achieving limiting and correcting the light-shielding sheet without affecting the normal rotation of the guide roller 23, ensuring smooth conveying of the light-shielding sheet and preventing feeding jams caused by the correction structure obstructing the conveying. This correction mechanism can quickly and accurately correct the offset of the light shield in the front-to-back direction, ensuring that the light shield is always conveyed along the correct path, guaranteeing precise docking with the printing press, reducing printing waste caused by offset, improving the reliability of feeding and subsequent printing quality, and enhancing the practicality of the device.

[0021] refer to Figure 3The drive box 12 has a bearing fixedly connected inside, and the outer ring of the bearing is fixedly connected to the drive box 12, while the inner ring of the bearing is fixedly connected to the threaded rod 16.

[0022] As a technical optimization of this utility model, the connection method of fixing the outer ring of the bearing to the drive box 12 and the inner ring to the threaded rod 16 effectively reduces the frictional resistance between the threaded rod 16 and the drive box 12 during rotation, making the rotation of the threaded rod smoother and more stable, avoiding rotational jamming due to excessive friction, ensuring the smoothness of the adjustment process of the correction mechanism, and thus ensuring the timeliness and accuracy of correction. At the same time, reducing friction can reduce the wear of the contact parts between the threaded rod 16 and the drive box 12, avoiding damage to components due to long-term friction, extending the service life of the threaded rod 16 and the drive box 12, and reducing the maintenance cost of the device. In addition, the bearing can also provide a certain support for the threaded rod 16, enhance the stability of the threaded rod during rotation, prevent the threaded rod from bending and deforming due to its own length or force, further ensure the long-term stable operation of the correction mechanism, and provide a reliable guarantee for the continuous and accurate correction of the light-shielding sheet feeding.

[0023] refer to Figure 1 The static elimination mechanism includes brackets 18 fixedly connected to the front and rear sides of the right side of the support frame 2, and upper ion nozzle row 19 and lower ion nozzle row 20 are fixedly connected between the two brackets 18 respectively. A high-voltage ion generator 21 is fixedly connected to the top of the base plate 1. The output end of the high-voltage ion generator 21 is connected to the air inlet of the upper ion nozzle row 19 and the air inlet of the lower ion nozzle row 20 through a splitter.

[0024] As a technical optimization of this utility model, the fixing of the upper and lower ion nozzle rows 20 by the front and rear brackets 18 ensures that the nozzle rows are stably aligned with the upper and lower surfaces of the light-shielding sheet, achieving simultaneous static removal from both sides of the light-shielding sheet. This avoids the problem of incomplete static removal on one side, resulting in residual static electricity in some areas, and improves the comprehensiveness of static removal. The ion wind generated by the high-voltage ion generator 21 is evenly distributed to the upper ion nozzle row 19 and the lower ion nozzle row 20 through a distributor, ensuring that the ion wind emitted by the two rows of nozzles has uniform intensity and coverage. This ensures that all areas of the upper and lower surfaces of the light-shielding sheet are uniformly affected by the ion wind, effectively removing surface static electricity and preventing static electricity from attracting dust and impurities from the air. This prevents these contaminants from adhering to the surface of the light-shielding sheet and affecting the clarity and quality of subsequent printing. At the same time, static removal also prevents the light-shielding sheets from sticking together due to static electricity, facilitating the separation of the light-shielding sheets during transportation, ensuring smooth feeding, reducing feeding interruptions or damage to the light-shielding sheets caused by sticking, and further improving the feeding effect and efficiency.

[0025] refer to Figure 1The base plate 1 has mounting brackets 22 fixedly connected to both the front and back sides. The mounting brackets 22 have mounting openings on their surfaces, and the compression spring 11 has an anti-rust coating on its surface.

[0026] As a technical optimization of this utility model, the cooperation between the mounting bracket 22 and the mounting port provides convenient conditions for fixing the entire feeding structure. Operators do not need to design or process the installation structure separately; they can simply use bolts or other connecting parts through the mounting port to quickly and stably install the device in a suitable position on the printing press. This simplifies the installation process, reduces installation difficulty, and improves the ease of installation and applicability of the device. The anti-rust coating on the surface of the compression spring 11 effectively isolates it from air, moisture, and corrosive substances in the external environment, preventing rusting during long-term use. This avoids the loss of elasticity, breakage, or jamming of the compression spring 11 due to rust, ensuring that the compression spring 11 always maintains good elasticity, guaranteeing the normal operation of the tensioning mechanism, and maintaining the stability of tension adjustment. At the same time, the anti-rust coating extends the service life of the compression spring 11, reducing the number of maintenance operations and costs caused by damage to the compression spring 11, improving the overall durability and stability of the device, and further ensuring the long-term, reliable operation of the feeding structure.

[0027] The working principle and usage process of this utility model are as follows: In use, a light-shielding sheet unwinding mechanism is set on the left side of the base plate 1. One end of the light-shielding sheet passes over the top of the left guide roller 23, the bottom of the tension roller 6, and the top of the right guide roller 23, and then connects to the light-shielding sheet printing machine. Then, the electric telescopic rod 7 is controlled to run. The output end of the electric telescopic rod 7 drives the pressure detector 10 and the movable plate 9 to move up and down. The movable plate 9 moves smoothly under the guidance of the guide rod 8. At the same time, the movable plate 9 exerts a force on the fixed frame 5 through the compression spring 11. The fixed frame 5 drives the tension roller 6 to move up and down accordingly. According to the material and thickness of the light-shielding sheet, the pressure data fed back by the pressure detector 10 is observed, and the tension roller 6 is adjusted to a suitable position so that the light-shielding sheet can maintain an appropriate tension during subsequent conveying, avoiding wrinkles caused by being too loose, and not being damaged by being too tight.

[0028] Then, the correction mechanism is activated, and the servo motor 17 is started. The servo motor 17 drives the positive and negative threaded rod 16 to rotate smoothly under the support of the bearing inside the drive box 12. The positive and negative threaded rod 16 drives the slider 13 connected to it to slide back and forth inside the drive box 12. The two sliders 13 move in opposite directions, and the sliders 13 drive the top limit frame 14 to move synchronously. The distance between the two limit frames 14 is adjusted so that the inner wall of the opening 15 on both sides of the front of the limit frame 14 is in close contact with the surface of the guide roller 23, and the space between the two limit frames 14 is adapted to the width of the light shield, ensuring that the light shield can be limited within the preset path when it is transported.

[0029] Then, the static elimination mechanism is activated, and the high-voltage ion generator 21 is started. The ion wind generated by the high-voltage ion generator 21 is delivered to the upper ion air nozzle row 19 and the lower ion air nozzle row 20 through the splitter. The two rows of nozzles blow out ion wind evenly to ensure that the upper and lower surfaces of the light shield are fully covered. The upper ion air nozzle row 19 and the lower ion air nozzle row 20 continuously remove static electricity from the surface of the light shield to prevent dust adsorption and adhesion of the light shield.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding structure for a light-shielding film printing machine, comprising a base plate (1), characterized in that: A support frame (2) is fixedly connected to the top of the base plate (1). Guide rollers (23) are rotatably connected to both sides inside the support frame (2). A support frame (3) is fixedly connected to the top of the support frame (2). Limiting rods (4) are slidably connected to the front and rear sides inside the support frame (3). A fixing frame (5) is fixedly connected to the bottom of the limiting rod (4). A tensioning roller (6) is rotatably connected inside the fixing frame (5). A tensioning mechanism is provided above the support frame (3). A correction mechanism is provided at the top of the base plate (1). An antistatic mechanism is provided on the right side of the support frame (2). The tensioning mechanism can adjust the tensioning roller (6) to move up or down, thereby adjusting the tension of the light shield. The correction mechanism can limit the light shield in the front and rear directions. The antistatic mechanism can remove static electricity from the surface of the light shield.

2. The feeding structure for a light-shielding film printing machine according to claim 1, characterized in that: The tensioning mechanism includes an electric telescopic rod (7) fixedly connected to the top of the support frame (3). Guide rods (8) are fixedly connected to the top of the fixed frame (5) around the perimeter. The surfaces of the four guide rods (8) are slidably connected to the same movable plate (9). A pressure detector (10) is fixedly connected to the top of the movable plate (9). The output end of the electric telescopic rod (7) extends to the bottom of the support frame (3) and is fixedly connected to the top of the pressure detector (10). A compression spring (11) is sleeved on the surface of the guide rod (8). The bottom end of the compression spring (11) is fixedly connected to the top of the fixed frame (5), and the top end of the compression spring (11) is fixedly connected to the bottom of the movable plate (9).

3. The feeding structure for a light-shielding film printing machine according to claim 2, characterized in that: The correction mechanism includes a drive box (12) fixedly connected to the top of the base plate (1). The front and rear sides of the drive box (12) are slidably connected to sliders (13). The drive box (12) is rotatably connected to a threaded rod (16). The threaded rod (16) is threadedly connected to the slider (13). The front of the support frame (2) is fixedly connected to a servo motor (17). The output end of the servo motor (17) is fixedly connected to the threaded rod (16). The top of the slider (13) is fixedly connected to a limit frame (14). The limit frame (14) has openings (15) on both sides of its front. The inner wall of the opening (15) is in contact with the surface of the guide roller (23).

4. The feeding structure for a light-shielding film printing machine according to claim 3, characterized in that: The drive box (12) is internally fixedly connected to a bearing, and the outer ring of the bearing is fixedly connected to the drive box (12), and the inner ring of the bearing is fixedly connected to the threaded rod (16).

5. The feeding structure for a light-shielding film printing machine according to claim 4, characterized in that: The static elimination mechanism includes brackets (18) fixedly connected to the front and rear sides of the right side of the support frame (2), and upper ion nozzle row (19) and lower ion nozzle row (20) are fixedly connected between the two brackets (18) respectively. A high-voltage ion generator (21) is fixedly connected to the top of the base plate (1). The output end of the high-voltage ion generator (21) is connected to the air inlet of the upper ion nozzle row (19) and the air inlet of the lower ion nozzle row (20) through a splitter.

6. The feeding structure for a light-shielding film printing machine according to claim 5, characterized in that: The base plate (1) is fixedly connected to the front and back of the mounting bracket (22), the mounting bracket (22) has an installation opening on its surface, and the compression spring (11) has an anti-rust coating on its surface.

Images