A detachable screen printing device

Abstract

This invention belongs to the field of screen printing technology, specifically a detachable screen printing device. Addressing the issue that ink and other printing materials may remain inside the screen openings, potentially causing spillage or splashing during disassembly and thus unnecessary contamination of the printing equipment, the invention proposes the following solution: a screen frame with two linear guide rails, each equipped with a ball screw; and two fixed base plates. This detachable screen printing device provides contamination prevention during disassembly. When disassembling the screen, the device covers both sides of the screen openings with a paper film, preventing residual ink and other printing materials from spilling or splashing during disassembly, thereby improving the device's effectiveness.

Description

Technical Field

[0001] This invention relates to the field of screen printing technology, and more particularly to a detachable screen printing device. Background Technology

[0002] Screen printing, also known as stencil printing, is a widely used process. Simply put, it's like using a "mesh" with a perforated pattern to "slip" ink through the holes onto the surface of various materials. In the modern electronics industry, high-precision metal stencils (also called steel mesh) can be used to precisely print solder paste onto circuit boards for soldering components, or to print conductive paste for manufacturing basic electronic components such as chips, resistors, and capacitors.

[0003] The core of screen printing disassembly is cleaning and maintenance. A standardized disassembly process can significantly extend the service life of the screen (especially high-precision stencils), avoid printing defects and production stoppages caused by blockages and damage, and is an important link in ensuring the stability of printing quality and controlling production costs.

[0004] When existing printing screens are disassembled, it is usually after printing is completed. Because there are mesh holes on the printing screen, ink and other printing materials may remain inside the mesh holes. This can cause residual printing materials to fall off or splash during the disassembly process, which may cause unnecessary contamination to the printing equipment and affect the disassembly process. Summary of the Invention

[0005] This invention discloses a detachable screen printing device, which aims to solve the technical problem in the prior art where ink and other printing materials may remain inside the screen openings, causing the residual printing materials to fall off or splash during the disassembly operation, thus potentially causing unnecessary pollution to the printing equipment.

[0006] The present invention provides a detachable screen printing device, comprising:

[0007] A mesh frame is provided with two linear guide rails, and each of the two linear guide rails is provided with a ball screw;

[0008] Two fixed base plates are respectively mounted on two linear guide rails and two ball screws. The two fixed base plates are provided with the same main mounting frame, and the main mounting frame is provided with an inner mounting frame.

[0009] The disassembly and closure unit is set on the mesh frame. The disassembly and closure unit includes two closure paper films and two guide film frames. The outer walls of the two closure paper films are in contact with the outer walls of the two guide film frames respectively.

[0010] Two hole-covering cutting modules are provided, both of which are mounted on the hole-covering disassembly unit. Each hole-covering cutting module includes a cutting tool and a vision camera.

[0011] In a preferred embodiment, it also includes:

[0012] Two stepper motors are respectively mounted on two linear guide rails, and the output shafts of the two stepper motors are respectively connected to one end of two ball screws via couplings;

[0013] A screen clamping mechanism is mounted on the inner frame of the installation, and a printing screen body is mounted on the screen clamping mechanism.

[0014] Two screen printing plate shifting mechanisms are respectively installed on the main mounting frame and the inner mounting frame. Two screen printing plate shifting mechanisms are also respectively installed on the main mounting frame and the inner mounting frame.

[0015] A printing squeegee mechanism is mounted on the inner frame of the installation, and a squeegee body is mounted on the printing squeegee mechanism.

[0016] In a preferred embodiment, the disassembly and closure unit further includes:

[0017] A guide rail is provided on the mesh frame, and a linear screw is also provided on the mesh frame. The linear screw and the guide rail are provided on the same adjustment base.

[0018] A servo motor is mounted on the mesh frame, and the output shaft of the servo motor is connected to one end of a linear lead screw via a coupling.

[0019] A U-shaped frame is mounted on an adjustable base, and an electric telescopic rod is mounted on the U-shaped frame.

[0020] Two connecting rod frames are respectively set on the output end of the electric telescopic rod and the adjusting base. One end of each of the two connecting rod frames is provided with a mounting bracket, and two guide film frames are respectively set on the two mounting brackets.

[0021] In a preferred embodiment, the disassembly and closure unit further includes:

[0022] Two air-expanding rollers are respectively mounted on two mounting brackets, and each of the two air-expanding rollers is equipped with a perforated roller, and two perforated paper films are respectively mounted on the two perforated rollers;

[0023] Two general-purpose motors are respectively mounted on two mounting brackets, and the output shafts of the two general-purpose motors are respectively connected to one end of two air expansion rollers via couplings.

[0024] In a preferred embodiment, the disassembly and closure unit further includes:

[0025] Multiple fixed supports are respectively set on two guide film frames, and each of the multiple fixed supports is equipped with a conveying shaft roller. The outer wall of the multiple conveying shaft rollers is in contact with the outer wall of the two perforated paper films.

[0026] Multiple drive motors are mounted on multiple fixed supports, and the output shafts of the multiple drive motors are connected to one end of multiple conveying rollers via couplings.

[0027] In a preferred embodiment, the disassembly and closure unit further includes:

[0028] Multiple mounting rods are respectively set on multiple fixed brackets. The same mounting shaft is set on two mounting rods on the same side. Soft plates are set on the two mounting shafts. The outer walls of the two soft plates are in contact with the outer walls of the two perforated paper films respectively.

[0029] Multiple torsion springs are respectively disposed on the outside of two mounting shafts, one end of each torsion spring is disposed on a multiple mounting rod, and the other end of each torsion spring is disposed on two soft plates.

[0030] In a preferred embodiment, the hole-cutting module further includes:

[0031] The installation frame is mounted on the mounting bracket and is equipped with a frame guide rail.

[0032] A drive screw is mounted on a mesh frame guide rail, and the drive screw and the mesh frame guide rail are mounted on the same cutting substrate.

[0033] In a preferred embodiment, the hole-cutting module further includes:

[0034] An active motor is mounted on the wire frame guide rail, and the output shaft of the active motor is connected to one end of the drive screw via a coupling.

[0035] An electric push rod is mounted on a cutting substrate. The output end of the electric push rod is provided with a fixed frame, and a shaft is mounted on the fixed frame. The cutting tool is mounted on the shaft.

[0036] In a preferred embodiment, the hole-cutting module further includes:

[0037] A power motor is mounted on a fixed frame, and the output shaft of the power motor is connected to one end of a shaft member via a coupling.

[0038] The frame support is mounted on the electric push rod.

[0039] In a preferred embodiment, the hole-cutting module further includes:

[0040] A flip motor is mounted on a frame support.

[0041] A flip plate is mounted on the output shaft of a flip motor via a coupling, and the vision camera is mounted on the flip plate.

[0042] As can be seen from the above, the detachable printing screen device provided by the present invention has the function of preventing pollution during the disassembly of the printing screen. When disassembling the printing screen, the device can cover the two sides of the mesh area of ​​the printing screen with paper film so that the paper film can block the ink and other printing materials remaining in the mesh of the printing screen, and prevent them from falling off or splashing during disassembly, thereby increasing the effectiveness of the device. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of a detachable printing screen device proposed in this invention.

[0044] Figure 2 This is a schematic diagram of the combined structure of the linear guide rail and the main body of the printing screen for a detachable printing screen device proposed in this invention.

[0045] Figure 3 This is a schematic diagram of the combined structure of the printing squeegee mechanism and the mounting inner frame of a detachable screen printing device proposed in this invention.

[0046] Figure 4 This is a schematic diagram of the disassembly and perforation unit structure of a detachable printing screen device proposed in this invention;

[0047] Figure 5 This is a schematic diagram of the combined structure of the conveyor roller and drive motor of a detachable screen printing device proposed in this invention.

[0048] Figure 6 This is a schematic diagram of the disassembly structure of the perforated paper film and the guide film frame of a detachable screen printing device proposed in this invention.

[0049] Figure 7 This is a schematic diagram of the combined structure of the guide film frame and the flexible mounting plate of a detachable printing screen device proposed in this invention.

[0050] Figure 8 This is a schematic diagram of the disassembled structure of the torsion spring and mounting shaft of a detachable printing screen device proposed in this invention;

[0051] Figure 9This is a schematic diagram of the hole-covering cutting module structure of a detachable screen printing device proposed in this invention;

[0052] Figure 10 This is a schematic diagram of the combined structure of a cutting tool and a vision camera in a detachable printing screen device proposed in this invention.

[0053] In the diagram: 1. Install the main frame; 2. Fix the base plate; 3. Screen shifting mechanism one; 4. Install the inner frame; 5. Screen shifting mechanism two; 6. Disassemble the perforation unit; 601. Servo motor; 602. U-shaped frame; 603. Adjusting base; 604. Linear lead screw; 605. Guide rail; 606. Connecting rod frame; 607. Mounting bracket; 608. Electric telescopic rod; 609. Conveyor roller; 610. Drive motor; 611. Perforation roller; 612. Perforation paper film; 613. Guide film frame; 614. Air roller; 615. General motor; 616. Mounting rod; 617. Soft mounting plate; 618. Torsion spring; 619. Installation... 620. Mounting rod; 7. Fixed bracket; 8. Screen frame; 9. Printing screen body; 10. Screen clamping mechanism; 11. Stepper motor; 12. Ball screw; 13. Linear guide rail; 14. Printing squeegee mechanism; 15. Squeegee body; 16. Hole-covering and cutting module; 1501. Mounting frame; 1502. Screen frame guide rail; 1503. Drive screw; 1504. Power motor; 1505. Cutting tool; 1506. Fixed frame; 1507. Flipping plate; 1508. Vision camera; 1509. Active motor; 1510. Flipping motor; 1511. Cutting substrate; 1512. Electric push rod; 1513. Frame bracket. Detailed Implementation

[0054] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0055] The detachable screen printing device disclosed in this invention is mainly used in scenarios where ink or other printing materials may remain inside the screen openings, and the screen may fall off or splash during disassembly, potentially causing unnecessary contamination to the printing equipment.

[0056] Reference Figures 1-10 A detachable screen printing device, comprising:

[0057] The mesh frame 7 is provided with two linear guide rails 12, and each of the two linear guide rails 12 is provided with a ball screw 11.

[0058] Two fixed base plates 2 are respectively set on two linear guide rails 12 and two ball screws 11. The same mounting main frame 1 is set on the two fixed base plates 2, and the mounting main frame 1 is set on the mounting inner frame 4.

[0059] Disassemble the perforation unit 6. The perforation unit 6 is set on the mesh frame 7. The perforation unit 6 includes two perforation paper films 612 and two guide film frames 613. The outer walls of the two perforation paper films 612 are in contact with the outer walls of the two guide film frames 613 respectively.

[0060] Two hole-covering and cutting modules 15 are provided on the hole-covering disassembly unit 6. Each hole-covering and cutting module 15 includes a cutting tool 1505 and a vision camera 1508.

[0061] It should be noted that the screen clamping mechanism 9 is used to clamp and fix the printing screen body 8 when in use, and when disassembling it, the printing screen body 8 is removed from the screen clamping mechanism 9.

[0062] The screen shifting mechanism 1 3 and the screen shifting mechanism 2 5 can shift and adjust the structure such as the mounting inner frame 4, the screen clamping mechanism 9 and the printing screen body 8 during use, so that the printing screen body 8 can be finely adjusted during printing and increase printing accuracy.

[0063] Reference Figures 1-10 In a preferred embodiment, it further includes:

[0064] Two stepper motors 10 are respectively mounted on two linear guide rails 12, and the output shafts of the two stepper motors 10 are respectively connected to one end of two ball screws 11 through couplings.

[0065] Screen clamping mechanism 9 is set on the mounting inner frame 4, and printing screen body 8 is set on the screen clamping mechanism 9;

[0066] Two screen printing plate shifting mechanisms 3 are respectively installed on the main mounting frame 1 and the inner mounting frame 4. The main mounting frame 1 and the inner mounting frame 4 are also respectively provided with screen printing plate shifting mechanisms 5.

[0067] A printing squeegee mechanism 13 is mounted on the inner frame 4, and a squeegee body 14 is mounted on the printing squeegee mechanism 13.

[0068] Reference Figure 1 and Figures 4-8 In a preferred embodiment, the disassembly cover unit 6 further includes:

[0069] Guide rail 605 is set on mesh frame 7. Linear screw 604 is also set on mesh frame 7. Linear screw 604 and guide rail 605 are set on the same adjustment base 603.

[0070] Servo motor 601 is mounted on mesh frame 7. The output shaft of servo motor 601 is connected to one end of linear lead screw 604 via a coupling.

[0071] U-shaped frame 602, U-shaped frame 602 is set on adjustment base 603, and electric telescopic rod 608 is set on U-shaped frame 602;

[0072] Two connecting rod brackets 606 are respectively set on the output end of the electric telescopic rod 608 and the adjusting base 603. One end of each of the two connecting rod brackets 606 is provided with a mounting bracket 607. Two guide film brackets 613 are respectively set on the two mounting brackets 607.

[0073] In this invention, the disassembly cover unit 6 further includes:

[0074] Two air-expanding rollers 614 are respectively mounted on two mounting brackets 607. Each air-expanding roller 614 is equipped with a perforated roller 611. Two perforated paper films 612 are respectively mounted on the two perforated rollers 611.

[0075] Two general-purpose motors 615 are respectively mounted on two mounting brackets 607, and the output shafts of the two general-purpose motors 615 are respectively connected to one end of two air expansion rollers 614 through couplings.

[0076] In this invention, the disassembly cover unit 6 further includes:

[0077] Multiple fixed supports 620 are respectively set on two guide film frames 613. Each fixed support 620 is equipped with a conveying shaft roller 609. The outer wall of the multiple conveying shaft rollers 609 is in contact with the outer wall of the two perforated paper films 612.

[0078] Multiple drive motors 610 are respectively mounted on multiple fixed brackets 620, and the output shafts of the multiple drive motors 610 are respectively connected to one end of multiple conveying rollers 609 through couplings.

[0079] In this invention, the disassembly cover unit 6 further includes:

[0080] Multiple mounting rods 616 are respectively set on multiple fixed brackets 620. Two mounting rods 616 on the same side are each provided with the same mounting shaft 619. Both mounting shafts 619 are provided with soft plates 617. The outer walls of the two soft plates 617 are in contact with the outer walls of the two perforated paper films 612 respectively.

[0081] Multiple torsion springs 618 are respectively disposed on the outside of two mounting shafts 619. One end of each torsion spring 618 is disposed on a multiple mounting rod 616, and the other end of each torsion spring 618 is disposed on two soft plates 617.

[0082] Specifically, during disassembly, the printing screen body 8 moves between the two guide film frames 613. At this time, the electric telescopic rod 608 operates, driving one of the connecting rod frames 606 to move so that it is close to the squeegee side of the printing screen body 8. Then, the general-purpose motor 615 and the drive motor 610 operate. The general-purpose motor 615 drives the air expansion roller 614 to rotate, and further drives the perforated roller 611 to rotate, so as to feed out the perforated paper film 612. At the same time, the drive motor 610 drives the conveying shaft roller 609 to convey the perforated paper film 612, so that the perforated paper film 612 moves along the surface of the guide film frame 613 and is applied to the printing screen body 8.

[0083] During application, the torsion spring 618 can drive the soft plate 617 to twist slightly, so that the soft plate 617 presses the perforated paper film 612 onto the printing screen body 8 to apply the perforated paper film 612. At this time, the servo motor 601 runs and drives the linear screw 604 to rotate, which further drives the adjustment base 603, U-shaped frame 602 and other structures to rise and fall until the film covering of the perforated area of ​​the printing screen body 8 is completed.

[0084] In specific application scenarios, the disassembly and covering unit 6 is suitable for the disassembly of the printing screen. When disassembling the printing screen, the disassembly and covering unit 6 can cover the two sides of the screen opening area of ​​the printing screen with the covering paper film 612. This allows the covering paper film 612 to block the ink and other printing materials remaining in the screen opening, preventing them from falling off or splashing during disassembly. This increases the anti-contamination effect during the disassembly of the printing screen. Furthermore, by blocking the ink and other printing materials, it can prevent the solidified printing materials from falling into the running structure of the equipment after falling off, thereby avoiding damage to the moving structure and increasing the effectiveness of the device. At the same time, preventing the splashing of uncured printing materials can prevent them from falling on the printing material's movement path and affecting the printing quality of subsequent printing materials.

[0085] It should be noted that the perforated roller 611 can be disassembled by the air expansion roller 614, so that the perforated paper film 612 can be quickly and easily replaced after it is used up, increasing the ease of use of the device.

[0086] When covering the perforated paper film 612, the torsion spring 618 enables the soft plate 617 to apply a small pressure to the surface of the perforated paper film 612 to ensure that the perforated paper film 612 is effectively attached to the printing screen body 8.

[0087] The guide film holder 613 is used to guide the movement path of the perforated paper film 612 during use, which facilitates the perforated paper film 612 to perform the film covering operation, reduces the chance of wrinkles in the perforated paper film 612, and ensures smooth operation of the equipment.

[0088] Reference Figure 4 , Figure 5 , Figure 9 and Figure 10 In a preferred embodiment, the hole-covering and cutting module 15 further includes:

[0089] The installation frame 1501 is mounted on the mounting bracket 607 and the installation frame 1501 is provided with a wire frame guide rail 1502.

[0090] A drive screw 1503 is mounted on a wire frame guide rail 1502. The drive screw 1503 and the wire frame guide rail 1502 are mounted on the same cutting substrate 1511.

[0091] In this invention, the hole-covering and cutting module 15 further includes:

[0092] The active motor 1509 is mounted on the mesh frame guide rail 1502, and the output shaft of the active motor 1509 is connected to one end of the drive screw 1503 via a coupling.

[0093] An electric push rod 1512 is mounted on a cutting substrate 1511. A fixed frame 1506 is mounted on the output end of the electric push rod 1512. A shaft member is mounted on the fixed frame 1506, and a cutting tool 1505 is mounted on the shaft member.

[0094] In this invention, the hole-covering and cutting module 15 further includes:

[0095] The power motor 1504 is mounted on the fixed frame 1506, and the output shaft of the power motor 1504 is connected to one end of the shaft member through a coupling.

[0096] The frame bracket 1513 is mounted on the electric push rod 1512.

[0097] In this invention, the hole-covering and cutting module 15 further includes:

[0098] A flip motor 1510 is mounted on a frame bracket 1513.

[0099] The flip plate 1507 is mounted on the output shaft of the flip motor 1510 via a coupling, and the vision camera 1508 is mounted on the flip plate 1507.

[0100] Specifically, during the cutting process, the electric push rod 1512 operates, which drives the fixed frame 1506 to move, and the fixed frame 1506 drives the cutting tool 1505 to move towards the perforated paper film 612 to make contact. At this time, the power motor 1504 operates, and the power motor 1504 drives the shaft and the cutting tool 1505 to rotate. As the cutting tool 1505 rotates, the drive motor 1509 operates, and the drive motor 1509 drives the drive screw 1503 to rotate, so that the cutting substrate 1511, the cutting tool 1505 and other structures move until the perforated paper film 612 is cut.

[0101] During the cutting process, the flip motor 1510 drives the flip plate 1507 to flip and rotate so that the vision camera 1508 can detect the cutting path.

[0102] In specific application scenarios, the perforation cutting module 15 is suitable for the printing screen disassembly and film coating process. That is, after the paper film covering the perforations of the printing screen body 8 is completed, the perforation cutting module 15 can cut the paper film to facilitate secondary operations during subsequent disassembly. At the same time, during the cutting, the cutting path of the perforation paper film 612 can be detected in real time by the vision camera 1508 to ensure that the paper film is completely cut and to avoid displacement of the printing screen body 8 when it is not completely cut, which would cause the perforation paper film 612 to shift, thereby increasing the use effect of the device and the perforation effect.

[0103] It should be noted that the vision camera 1508 can be flipped during use to be positioned on both sides of the cutting tool 1505, so that the path of the cutting tool 1505 does not need to be reset after a single cut, further increasing the effectiveness of the device.

[0104] Working principle:

[0105] In use, the stepper motor 10 runs, driving the ball screw 11 to rotate, which in turn drives the fixed base plate 2 to move. This causes the fixed base plate 2 to move the main mounting frame 1, the inner mounting frame 4, the printing screen body 8, and other structures, so that the printing screen body 8 moves to one side of the screen frame 7, and the two sides of the printing screen body 8 are covered with film. After cutting, it is reset to disassemble the printing screen body 8.

[0106] During disassembly, the printing screen body 8 moves between the two guide film frames 613. At this time, the electric telescopic rod 608 operates, which drives one of the connecting rod frames 606 to move so that it is close to the squeegee side of the printing screen body 8. Then, the general motor 615 and the drive motor 610 operate. The general motor 615 drives the air expansion roller 614 to rotate, and further drives the perforated roller 611 to rotate, so as to feed out the perforated paper film 612. At the same time, the drive motor 610 drives the conveying shaft roller 609 to convey the perforated paper film 612, so that the perforated paper film 612 moves along the surface of the guide film frame 613 and is applied to the printing screen body 8.

[0107] During application, the torsion spring 618 can drive the soft plate 617 to twist slightly, so that the soft plate 617 presses the perforated paper film 612 onto the printing screen body 8 to apply the perforated paper film 612. At this time, the servo motor 601 runs and drives the linear screw 604 to rotate, which further drives the adjustment base 603, U-shaped frame 602 and other structures to rise and fall until the film covering of the perforated area of ​​the printing screen body 8 is completed.

[0108] During cutting, the electric push rod 1512 operates, driving the fixed frame 1506 to move, which in turn causes the cutting tool 1505 to move towards the perforated paper film 612 to make contact. At this time, the power motor 1504 operates, driving the shaft and the cutting tool 1505 to rotate. As the cutting tool 1505 rotates, the drive motor 1509 operates, driving the drive screw 1503 to rotate, so that the cutting substrate 1511, the cutting tool 1505 and other structures move until the perforated paper film 612 is cut.

[0109] During the cutting process, the flip motor 1510 drives the flip plate 1507 to flip and rotate so that the vision camera 1508 can detect the cutting path.

[0110] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A detachable screen printing device, characterized in that, include: The mesh frame (7) is provided with two linear guide rails (12), and each of the two linear guide rails (12) is provided with a ball screw (11). Two fixed base plates (2) are respectively set on two linear guide rails (12) and two ball screws (11). The two fixed base plates (2) are provided with the same mounting main frame (1), and the mounting main frame (1) is provided with a mounting inner frame (4). The perforation removal unit (6) is set on the mesh frame (7). The perforation removal unit (6) includes two perforated paper films (612) and two guide film frames (613). The outer walls of the two perforated paper films (612) are in contact with the outer walls of the two guide film frames (613). Two hole-covering cutting modules (15) are provided on the hole-covering disassembly unit (6). The hole-covering cutting module (15) includes a cutting tool (1505) and a vision camera (1508). Two stepper motors (10) are respectively mounted on two linear guide rails (12), and the output shafts of the two stepper motors (10) are respectively connected to one end of two ball screws (11) through couplings; Screen clamping mechanism (9) is set on the mounting inner frame (4), and the screen clamping mechanism (9) is provided with the printing screen body (8). Two screen shifting mechanisms (3) are respectively installed on the main frame (1) and the inner frame (4). The main frame (1) and the inner frame (4) are also respectively provided with screen shifting mechanisms (5). Printing scraper mechanism (13) is mounted on the inner frame (4), and a scraper body (14) is mounted on the printing scraper mechanism (13). The disassembly cover unit (6) also includes: A guide rail (605) is provided on the mesh frame (7). A linear screw (604) is also provided on the mesh frame (7). The linear screw (604) and the guide rail (605) are provided with the same adjustment base (603). Servo motor (601) is mounted on the mesh frame (7). The output shaft of the servo motor (601) is connected to one end of the linear lead screw (604) via a coupling. U-shaped frame (602), the U-shaped frame (602) is set on the adjustment base (603), and an electric telescopic rod (608) is set on the U-shaped frame (602). Two connecting rod frames (606) are respectively set on the output end of the electric telescopic rod (608) and the adjusting base (603). One end of each of the two connecting rod frames (606) is provided with a mounting bracket (607). Two guide film frames (613) are respectively set on the two mounting brackets (607). Two air-expanding rollers (614) are respectively mounted on two mounting brackets (607), and each of the two air-expanding rollers (614) is provided with a perforated roller (611), and two perforated paper films (612) are respectively mounted on the two perforated rollers (611); Two general-purpose motors (615) are respectively mounted on two mounting brackets (607), and the output shafts of the two general-purpose motors (615) are respectively connected to one end of two air rollers (614) through couplings; Multiple fixed supports (620) are respectively disposed on two guide film frames (613), and each of the multiple fixed supports (620) is provided with a conveying shaft roller (609). The outer wall of the multiple conveying shaft rollers (609) is in contact with the outer wall of the two perforated paper films (612). Multiple drive motors (610) are respectively mounted on multiple fixed brackets (620), and the output shafts of the multiple drive motors (610) are respectively connected to one end of multiple conveying rollers (609) through couplings; Multiple mounting rods (616) are respectively mounted on multiple fixed brackets (620). Two mounting rods (616) on the same side are each provided with the same mounting shaft (619). Both mounting shafts (619) are provided with soft plates (617). The outer walls of the two soft plates (617) are in contact with the outer walls of the two perforated paper films (612). Multiple torsion springs (618) are respectively disposed on the outside of two mounting shafts (619), one end of each torsion spring (618) is disposed on multiple mounting rods (616), and the other end of each torsion spring (618) is disposed on two soft plates (617).

2. The detachable screen printing device according to claim 1, characterized in that, The hole-covering and cutting module (15) also includes: The mounting frame (1501) is mounted on the mounting bracket (607), and the mounting frame (1501) is provided with a frame guide rail (1502). A drive screw (1503) is mounted on a wire frame guide rail (1502). The drive screw (1503) and the wire frame guide rail (1502) are mounted on the same cutting substrate (1511).

3. The detachable screen printing device according to claim 2, characterized in that, The hole-covering and cutting module (15) also includes: An active motor (1509) is mounted on a wire mesh guide rail (1502). The output shaft of the active motor (1509) is connected to one end of a drive screw (1503) via a coupling. An electric push rod (1512) is mounted on a cutting substrate (1511). A fixed frame (1506) is mounted on the output end of the electric push rod (1512). A shaft member is mounted on the fixed frame (1506), and a cutting tool (1505) is mounted on the shaft member.

4. A detachable screen printing device according to claim 3, characterized in that, The hole-covering and cutting module (15) also includes: A power motor (1504) is mounted on a fixed frame (1506), and the output shaft of the power motor (1504) is connected to one end of a shaft member via a coupling. The frame support (1513) is mounted on the electric push rod (1512).

5. A detachable screen printing device according to claim 4, characterized in that, The hole-covering and cutting module (15) also includes: A flip motor (1510) is mounted on a frame support (1513); A flip plate (1507) is mounted on the output shaft of a flip motor (1510) via a coupling, and a vision camera (1508) is mounted on the flip plate (1507).

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