A non-woven bag screen printing machine

Abstract

The present invention relates to the field of non-woven fabric printing, and in particular to a non-woven bag screen printing machine, which mainly includes: a frame, a sliding seat, the sliding seat is slidably connected to a track set in a column; a screw rod, a connecting frame, the connecting frame is connected to one side of the sliding seat; a sliding seat, the sliding seat is slidably connected to one side of a side plate fixedly connected to one end of the connecting frame; a cylinder seat, the cylinder seat is fixedly set on one side of the sliding seat; a scraper and an ink return knife, a workbench, the workbench is set on the frame, located below the scraper and the ink return knife; a screen frame, a screen sliding arm, the screen sliding arm is slidably connected to a slide groove set at the bottom of the screen frame; a plurality of screen frames, a stepping cylinder, the stepping cylinder is set on one side of the screen sliding arm, and is fixedly connected to the connecting frame; the step length of the stepping cylinder is the length of a screen frame. The present invention has the following beneficial effects: the non-woven bag screen printing machine can reduce the required floor space, and reduce the purchase cost, so as to achieve the purpose of energy saving, burden reduction, cost reduction and efficiency improvement.

Description

Technical Field

[0001] The invention relates to the field of non-woven fabric printing, and in particular to a non-woven fabric bag screen printing machine. Background Art

[0002] A screen printer is a device used for screen printing. It achieves high-precision printing by fixing the material to be printed on the printing platform to ensure that the material does not move during the printing process. This machine is widely used in electronic products, packaging, advertising, textiles and other fields.

[0003] The basic working principle of a screen printer is to fix the material to be printed on the printing platform, and then transfer the ink to the surface of the material through the screen printing plate. The specific steps are as follows:

[0004] Material fixing: The material to be printed is placed on the printing platform and fixed;

[0005] Screen printing: The printing plate (screen) is placed over the material and the ink is transferred to the surface of the material by scraping the ink evenly across the screen with a scraper (squeegee).

[0006] Ink drying: After printing, the material passes through a drying device (such as hot air drying or ultraviolet drying) to cure and dry the ink.

[0007] Take out the material: turn off the vacuum adsorption system and take out the printed material.

[0008] In the process of multi-color printing, a screen printing machine prints product patterns on non-woven bags. Generally, only one color can be attached to the product. When changing the color, the original screen printing plate needs to be replaced, and a new screen printing plate needs to be reinstalled. Then, the ink on the scraper and ink return knife needs to be cleaned, and another color of ink is poured on the screen printing plate again to further add corresponding colors and patterns to the original product. The process is extremely cumbersome, which greatly reduces the printing efficiency.

[0009] In order to solve the above-mentioned problems of low efficiency and complicated operation, a printing assembly line is also provided in the prior art. By setting up multiple screen printing machines, arranging the multiple screen printing machines in sequence to form an assembly line, and installing a UV curing machine between two screen printing machines. Different colors of ink are used on each screen printing machine. The product is transported by a conveyor belt, and the pattern is printed on the screen printing machine. After UV curing, it enters the next screen printing machine for printing of different colors and patterns. The overall process is basically automated, with high printing efficiency, and there is no need to replace the screen printing plate many times, which solves the problem of complicated operation.

[0010] However, installing a corresponding number of screen printing machines according to the number of required colors will result in a larger space required and a significantly increased floor space of the overall assembly line. In addition, when a large number of colors are used, a large number of screen printing machines need to be purchased, and the purchase and installation costs increase significantly, which is not conducive to achieving the goals of energy conservation, burden reduction, cost reduction and efficiency improvement. Summary of the invention

[0011] The purpose of the present invention is to provide a non-woven bag screen printing machine, which can reduce the required floor space and purchase cost, thereby achieving the purpose of energy saving, burden reduction, cost reduction and efficiency improvement.

[0012] The above technical objectives of the present invention are achieved through the following technical solutions:

[0013] A non-woven bag screen printing machine, comprising: a frame, a column is fixedly arranged on one side of the frame; a track is arranged on the column; a sliding seat, the sliding seat is slidably connected to the track arranged in the column; a screw rod is arranged on one side of the middle part of the sliding seat, and is used to drive the sliding seat to move up and down; a connecting frame, the connecting frame is connected to one side of the sliding seat; a sliding seat, the sliding seat is slidably connected to one side of a side plate fixedly connected to one end of the connecting frame; a cylinder seat, the cylinder seat is fixedly arranged on one side of the sliding seat; a scraper and an ink return knife, the scraper and the ink return knife are respectively connected to the top of the cylinder seat The scraper cylinder and the ink return knife cylinder are set on the output shaft; the workbench is set on the frame and is located below the scraper and the ink return knife; the wire mesh frame is fixedly set on the slide seat and is located between the cylinder seats; the wire mesh slide arm is slidably connected to the slide groove set at the bottom of the wire mesh frame; multiple mesh clamping frames are arranged in sequence and fixedly connected to one side of the wire mesh slide arm; the stepping cylinder is set on one side of the wire mesh slide arm and fixedly connected to the connecting frame; the step length of the stepping cylinder is the length of one mesh clamping frame.

[0014] The present invention is further configured as follows: it also includes: a driving rod, the driving rod is fixedly arranged on the screen sliding arm; a gear, the gear is meshed with one side of the driving rod, and is connected to the connecting frame bearing through a rotating rod; a swing rod, one end of the swing rod is hinged to the eccentric position of the gear; a slide rail, the slide rail is hinged to the other end of the swing rod; an extension block, the extension block is fixedly connected to the middle of the slide rail; a positioning plate, the positioning plate is fixedly connected to the bottom of the extension block; a scraper sponge and an ink return knife sponge, the scraper sponge and the ink return knife sponge are connected to one side of the positioning plate, corresponding to the positions of the scraper and the ink return knife respectively; when the driving rod moves with the screen sliding arm, it drives the gear to rotate one circle, and the swing rod on the gear swings, pushing the guide rail, the extension block, the scraper sponge and the ink return knife sponge to perform a lateral reciprocating motion to wipe the ink from the scraper and the ink return knife.

[0015] The present invention is further configured as follows: a matching groove is provided on the wire mesh frame, and the extension block can slide through the matching groove.

[0016] The present invention is further configured as follows: cleaning grooves corresponding to the shapes of the scraper and the ink return knife are arranged on the scraper sponge and the ink return knife sponge.

[0017] The present invention is further configured as follows: a plurality of negative pressure holes are arranged on the surface of the workbench.

[0018] The present invention is further configured as follows: a T-shaped block is arranged on one side of the wire mesh sliding arm, and the T-shaped block fits with the sliding groove.

[0019] The present invention is further configured to include: a UV curing box arranged on one side of a workbench, an ultraviolet lamp is arranged in the UV curing box, a sliding frame is slidably arranged at the bottom of the workbench, the workbench and the sliding frame are slidably connected, two obliquely arranged springs are arranged on one side of the workbench, the springs are fixedly connected to the frame, a rubber rod is arranged on one side of the workbench, one end of the rubber rod extends to pass through the UV curing box and is fixedly connected to the connecting frame.

[0020] The present invention is further configured as follows: a roller corresponding to the rubber rod is connected to a bearing on the UV curing box. When printing is completed and the connecting frame moves upward as a whole, the connecting frame drives the rubber rod to move upward, and the straightened rubber rod pulls the workbench along the roller into the UV curing box for color curing.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. Improve printing efficiency: By setting the multi-color printing function, multi-color printing can be achieved on a non-woven bag screen printing machine, reducing the frequency of changing the screen printing plate, thereby improving the overall printing efficiency.

[0023] 2. Save space and cost: Compared with the traditional assembly line of multiple screen printing machines, the present invention realizes multi-color printing through a single device, effectively reducing the floor space, reducing the cost of equipment purchase and installation, and helping to save energy, reduce burden, reduce costs and increase efficiency.

[0024] 3. Simplify the operation process: The present invention reduces the tedious steps of manual operation through the automatic color switching and ink cleaning functions, simplifies the operation process, and makes the operation more convenient.

[0025] 4. Ensure printing quality: During the color switching process, the automatic cleaning device of the scraper and ink return knife is set to avoid the mixing of inks of different colors, ensure the purity of the color of each print, and improve the printing quality.

[0026] 5. Quick-curing ink: By setting up a UV curing box, the printed ink can be quickly cured to prevent color blur and ensure the clarity and stability of the printing effect.

[0027] 6. Flexible adaptation to different needs: The structural design of the present invention is reasonable, and the quantity and specifications of each component of the equipment can be adjusted according to actual needs, with good adaptability and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an embodiment;

[0029] Figure 2 It is a schematic diagram of the connection relationship between the wire mesh sliding arm and the wire mesh frame;

[0030] Figure 3 It is a rear view structural schematic diagram of an embodiment;

[0031] Figure 4 A schematic diagram of the cleaning structure of the scraper and ink return knife of the embodiment;

[0032] Figure 5 for Figure 4 A side view structural schematic diagram of;

[0033] Figure 6 for Figure 5 A magnified view of area A;

[0034] Figure 7 It is a schematic diagram of the connection relationship between the scraper sponge, the ink return sponge and the wire mesh frame;

[0035] Figure 8 A schematic diagram of the color curing structure of an embodiment;

[0036] Fig. 9 for Figure 8 Schematic diagram of the side structure.

[0037] Figure numerals: 1, frame; 2, column; 3, track; 4, sliding seat; 5, screw rod; 6, screw rod nut; 7, connecting frame; 8, side plate; 9, sliding seat; 10, cylinder seat; 11, cylinder; 12, scraper cylinder; 13, ink return knife cylinder; 14, output shaft; 15, knife holder; 16, scraper; 17, ink return knife; 18, workbench; 19, negative pressure hole; 20, wire mesh frame; 21, slideway; 22, Screen slide arm; 23, T-shaped block; 24, screen holder; 25, mounting slot; 26, stepping cylinder; 27, driving rod; 28, gear; 29, rocker arm; 30, slide rail; 31, extension block; 32, matching slot; 33, positioning plate; 34, scraper sponge; 35, ink return sponge; 36, cleaning slot; 37, sliding rack; 38, spring; 39, rubber rod; 40, roller; 41, UV curing box. DETAILED DESCRIPTION

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0040] In the description of the present invention, "multiple" means two or more than two, unless otherwise clearly defined. In the present invention, unless otherwise clearly defined and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0042] like Figure 1 As shown, a non-woven bag screen printing machine includes a frame 1. A column 2 is fixedly arranged on one side of the frame 1. A track 3 is arranged inside the column 2. A sliding seat 4 is slidably connected to the track 3. A screw 5 is arranged on one side of the middle part of the sliding seat 4. One end of the screw 5 is connected to the internal bearing of the column 2, and the other end of the screw 5 is connected to a longitudinal motor (not shown in the figure) for driving the screw 5 to rotate. Among them, a screw 5 nut is also connected between the screw 5 and the sliding seat 4. The screw 5 nut is fixedly connected to the sliding seat 4, so that when the longitudinal motor drives the screw 5 to rotate, it can drive the sliding seat 4 to move up and down, thereby realizing the longitudinal displacement of the sliding seat 4.

[0043] One side of the sliding seat 4 is connected to a connecting frame 7. One end of the connecting frame 7 is fixedly connected to a side plate 8. One side of the side plate 8 is slidably connected to a sliding seat 9. One side of the sliding seat 9 is connected to a transverse motor (not shown in the figure), and the transverse motor is placed inside the sliding seat 9. The transverse motor is connected to the sliding seat 9 through a conveyor belt assembly, so that when the transverse motor is working, the sliding seat 9 can be driven to slide back and forth in the transverse direction through the conveyor belt.

[0044] A cylinder seat 10 is fixedly arranged on one side of the slide seat 9. Two cylinders 11 are arranged on the top of the cylinder seat 10, namely a scraper cylinder 12 and an ink return knife cylinder 13. Output shafts 14 extending from the bottom of the scraper cylinder 12 and the ink return knife cylinder 13 are respectively connected to a tool holder 15 that is slidably connected to the cylinder seat 10 up and down. A scraper 16 and an ink return knife 17 are respectively connected to the bottom of the two tool holders 15.

[0045] Correspondingly, the frame 1 is provided with a workbench 18 below the scraper 16 and the ink return knife 17. The workbench 18 is used to place the non-woven bags to be printed, and the surface of the workbench 18 is provided with a plurality of negative pressure holes 19, and a built-in negative pressure motor, so that the non-woven bags placed on the workbench 18 can be stably attached to the workbench 18 by adsorption.

[0046] like Figure 2 As shown, in order to achieve the technical purpose of color switching, the present application has two wire mesh frames 20 fixedly arranged between the slide seat 9 and the cylinder seat 10. A slide groove 21 is arranged at the bottom of the two wire mesh frames 20. A wire mesh sliding arm 22 is slidably connected in the slide groove 21. A T-shaped block 23 is arranged on one side of the wire mesh sliding arm 22. The T-shaped block 23 fits with the slide groove 21, so that the wire mesh sliding arm 22 can slide laterally on the wire mesh frame 20.

[0047] like Figure 2 , Figure 3 As shown, a plurality of mesh frames 24 arranged in sequence are fixedly connected to one side of the screen sliding arm 22. This application takes two mesh frames 24 as an example, which are defined as mesh frame A and mesh frame B. A mounting groove 25 is provided in the middle of the mesh frame 24. A corresponding screen printing plate can be installed in the mounting groove 25. Each mesh frame 24 corresponds to a screen printing plate. The screen printing plate and the mesh frame 24 can be fixedly connected by bolts.

[0048] A stepping cylinder 26 is provided on one side of the screen sliding arm 22. The stepping cylinder 26 is fixedly connected to the connecting frame 7. The step length of the stepping cylinder 26 is the length of a clamping frame 24. When the limit value of the extension of the stepping cylinder 26 is reached, the stepping cylinder 26 retracts and resets.

[0049] When in use, fix the non-woven bag on the workbench 18, and then pour the ink of the corresponding color on each screen printing plate. In the initial state, the longitudinal motor drives the whole to move down to the top of the workbench 18. At this time, the distance between the screen printing plate and the non-woven bag on the workbench 18 is 35mm. The ink return knife cylinder 13 drives the ink return knife 17 to move down, and the transverse motor drives the cylinder seat 10 to move from one end of the screen printing plate to the other end, so that the ink on the screen printing plate is evenly covered on the screen printing plate. The scraper cylinder 12 drives the scraper 16 to move down, the ink return knife cylinder 13 drives the ink return knife 17 to reset, and the transverse motor drives the cylinder seat 10 to reset as a whole, so as to input the printing shape on the screen printing plate into the non-woven bag to complete the first printing.

[0050] The stepping cylinder 26 works, driving the screen slide arm 22 to move, so that the clamping frame A leaves the scraper 16, and the clamping frame B enters the scraper 16, and the above steps are repeated, so that the inks of different colors continue to adhere to the non-woven bag. After completing two printings, the stepping cylinder 26 is reset and returns to the initial state.

[0051] Under the above arrangement, the multiple screen printing machines required for the multi-color printing process used in the prior art can be reduced to one screen printing machine to achieve the multi-color printing effect, thereby reducing the work space required for multi-color printing and lowering the purchase cost of the screen printing machine.

[0052] From the above, it can be seen that when the color is switched, the ink from the previous round of printing will be attached to the scraper 16 and the ink return knife 17. If the next round of printing is carried out directly, the ink on the scraper 16 and the ink return knife 17 will be mixed with the subsequent ink of different colors, so that the color of the subsequent printing ink deviates from the original color.

[0053] like Figure 4 , Figure 5 As shown, in order to achieve the technical purpose of cleaning the scraper 16 and the ink return knife 17 during the color switching process. The present application has a driving rod 27 fixedly arranged on the screen slide arm 22. A gear 28 is meshed on one side of the driving rod 27. The gear 28 is connected to the connecting frame 7 through a rotating rod bearing. A rocker arm 29 is hinged at an eccentric position of the gear 28, and a slide rail 30 is hinged at one end of the rocker arm 29. An extension block 31 is fixedly connected to the middle of the slide rail 30. Corresponding to the position of the extension block 31, a matching groove 32 is provided on the screen frame 20. The extension block 31 can slide through the matching groove 32 to limit the moving direction of the extension block 31.

[0054] like Figure 5 , Figure 6 , Figure 7As shown, a positioning plate 33 is fixedly connected to the bottom of the extension block 31. A scraper sponge 34 and an ink return knife sponge 35 are connected to one side of the positioning plate 33. The scraper sponge 34 and the ink return knife sponge 35 are arranged on one side corresponding to the position of the scraper 16 and the ink return knife 17, and the two sponges are provided with a cleaning groove 36 corresponding to the shape of the scraper 16 and the ink return knife 17. When the scraper sponge 34 and the ink return knife sponge 35 reach the position of the scraper 16 and the ink return knife 17, they can wipe off the ink adsorbed on the scraper 16 and the ink return knife 17 to achieve the cleaning purpose.

[0055] The above working process is as follows: when the screen printing plate on the clamping frame A completes the first printing and resets to Figure 1 In the state shown, the stepping cylinder 26 works, driving the screen slide arm 22 to move horizontally, so that the screen printing plate on the clamping frame B is placed under the scraper 16 and the ink return knife 17. In this process, the driving rod 27 moves to drive the gear 28 to rotate one circle, and the rocker bar 29 on the gear 28 swings, pushing the guide rail, the extension block 31, and the scraper sponge 34 and the ink return knife sponge 35 to perform a horizontal reciprocating motion. The scraper sponge 34 and the ink return knife sponge 35 are interference fit with the scraper 16 and the ink return knife 17, and the ink on the scraper 16 and the ink return knife 17 is wiped off and then restored to the original position.

[0056] Through the above arrangement, the ink on the scraper 16 and the ink return knife 17 can be wiped clean each time the screen printing plate is switched, thereby preventing the ink remaining on the used scraper 16 and the ink return knife 17 from affecting subsequent printing.

[0057] In addition, when the stepping cylinder 26 drives the screen slide arm 22 to reset, the scraper sponge 34 and the ink return knife sponge 35 can repeatedly wipe the ink on the scraper 16 and the ink return knife 17 to achieve a deeper cleaning effect, reducing the difficulty of removing the scraper 16 and the ink return knife 17 for cleaning after the overall printing is completed.

[0058] Under the above settings, after each printing is completed, the color should be fixed. If the subsequent printing process is carried out directly, the color printed on the non-woven bag may be blurred.

[0059] like Figure 8 As shown, in order to achieve the purpose of re-printing after curing the color. The present application is provided with a UV curing box 41 on one side of the workbench 18. An ultraviolet lamp is provided in the UV curing box 41, and correspondingly, a sliding frame 37 is slidably provided at the bottom of the workbench 18. The sliding frame 37 is fixedly connected to the frame 1. The workbench 18 is slidably connected to the sliding frame 37 and can slide on the sliding frame 37. Two obliquely arranged springs 38 are provided on one side of the workbench 18. The spring 38 is fixedly connected to the frame 1.

[0060] Correspondingly, a rubber rod 39 is provided on one side of the workbench 18. One end of the rubber rod 39 extends to pass through the UV curing box 41 and is fixedly connected to the connecting frame 7.

[0061] like Fig. 9 As shown, in the optimized embodiment, the upper bearing of the UV curing box 41 is connected to a roller 40 corresponding to the rubber rod 39. The rubber rod 39 cooperates with the lower part of the roller 40 to pass through, so that the roller 40 plays a guiding role. After the first printing is completed, the connecting frame 7 moves upward as a whole, and in the process of moving upward, the rubber rod 39 is driven to move upward, and the straightened rubber rod 39 pulls the workbench 18 along the roller 40 into the UV curing box 41 for color curing.

[0062] During the second printing, the connecting frame 7 moves downward as a whole. At this time, under the action of the spring 38, the workbench 18 is reset to perform the subsequent second printing.

[0063] As mentioned above, the number of the mesh frames 24 can be adjusted according to actual needs, and the length of the driving rod 27 can be designed according to the specifications of the actual screen printing plate. In addition, each movement of the driving rod 27 can cause the gear 28 to rotate one circle, causing the scraper sponge 34 and the ink return sponge 35 to reciprocate once, and thereby adjusting the specifications of the gear 28.

[0064] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A non-woven bag screen printing machine, characterized in that ,include: A frame (1), wherein a column (2) is fixedly arranged on one side of the frame (1); A track (3) is arranged on the column (2); A sliding seat (4), the sliding seat (4) being slidably connected to a track (3) arranged in the column (2); A screw rod (5), the screw rod (5) being arranged on one side of the middle part of the sliding seat (4) and being used for driving the sliding seat (4) to move up and down; A connecting frame (7), the connecting frame (7) being connected to one side of the sliding seat (4); A sliding seat (9), the sliding seat (9) being slidably connected to one side of a side plate (8) fixedly connected to one end of the connecting frame (7); A cylinder seat (10), wherein the cylinder seat (10) is fixedly arranged on one side of the slide seat (9); A scraper (16) and an ink return knife (17), wherein the scraper (16) and the ink return knife (17) are respectively connected to the output shafts (14) of the scraper cylinder (12) and the ink return knife cylinder (13) arranged on the top of the cylinder seat (10); A workbench (18), the workbench (18) being arranged on the frame (1) and located below the scraper (16) and the ink return knife (17); A wire mesh frame (20), the wire mesh frame (20) being fixedly arranged on the slide seat (9) and located between the cylinder seats (10); A wire mesh sliding arm (22), the wire mesh sliding arm (22) being slidably connected to a sliding groove (21) provided at the bottom of the wire mesh frame (20); A plurality of mesh clamping frames (24), the plurality of mesh clamping frames (24) being arranged in sequence and fixedly connected to one side of the wire mesh sliding arm (22); A stepping cylinder (26), the stepping cylinder (26) being arranged on one side of the screen sliding arm (22) and fixedly connected to the connecting frame (7); The step length of the stepping cylinder (26) is the length of one clamping frame (24); Also includes: A driving rod (27), wherein the driving rod (27) is fixedly arranged on the wire mesh sliding arm (22); A gear (28), the gear (28) meshing with one side of the driving rod (27) and connected to a bearing of the connecting frame (7) via a rotating rod; A swing rod (29), one end of which is hinged to the gear (28) at an eccentric position; A slide rail (30), wherein the slide rail (30) is hinged to the other end of the swing rod (29); An extension block (31), the extension block (31) being fixedly connected to the middle portion of the slide rail (30); A positioning plate (33), the positioning plate (33) being fixedly connected to the bottom of the extension block (31); A scraper sponge (34) and an ink return knife sponge (35), wherein the scraper sponge (34) and the ink return knife sponge (35) are connected to one side of the positioning plate (33) and correspond to the positions of the scraper (16) and the ink return knife (17), respectively; The driving rod (27) drives the gear (28) to rotate one circle when the screen sliding arm (22) moves, and the swing rod (29) on the gear (28) swings, pushing the guide rail, the extension block (31) and the scraper (16) sponge and the ink return knife (17) sponge to perform a transverse reciprocating motion to wipe the ink from the scraper (16) and the ink return knife (17).

2. The non-woven bag screen printing machine according to claim 1 is characterized in that The wire mesh frame (20) is provided with a matching groove (32), and the extension block (31) can slide through the matching groove (32).

3. The non-woven bag screen printing machine according to claim 1 is characterized in that The scraper sponge (34) and the ink return knife sponge (35) are provided with a cleaning groove (36) corresponding to the shape of the scraper (16) and the ink return knife (17).

4. The non-woven bag screen printing machine according to claim 1 is characterized in that The surface of the workbench (18) is provided with a plurality of negative pressure holes (19).

5. The non-woven bag screen printing machine according to claim 1 is characterized in that A T-shaped block (23) is provided on one side of the wire mesh sliding arm (22), and the T-shaped block (23) fits in with the sliding groove (21).

6. The non-woven bag screen printing machine according to claim 1 is characterized in that , further comprising: a UV curing box (41) arranged on one side of a workbench (18), an ultraviolet lamp being arranged in the UV curing box (41), a sliding frame (37) being slidably arranged at the bottom of the workbench (18), the workbench (18) and the sliding frame (37) being slidably connected, two obliquely arranged springs (38) being arranged on one side of the workbench (18), the springs (38) being fixedly connected to the frame (1), a rubber rod (39) being arranged on one side of the workbench (18), one end of the rubber rod (39) extending to pass through the UV curing box (41) and being fixedly connected to the connecting frame (7).

7. The non-woven bag screen printing machine according to claim 6 is characterized in that The UV curing box (41) is connected to a roller (40) corresponding to the rubber rod (39) on a bearing. When printing is completed and the connecting frame (7) moves upward as a whole, the connecting frame (7) drives the rubber rod (39) to move upward, and the straightened rubber rod (39) pulls the workbench (18) along the roller (40) into the UV curing box (41) for color curing.

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