Screen printing machine with dust removal function and using method thereof

Abstract

The invention provides a screen printing machine with a dust removal function and a using method thereof, and belongs to the technical field of screen printing machines, the screen printing machine comprises an adhesive tape roller, a wind-up roller, a moving roller and supports, the supports are arranged on the two sides of a transmission belt, the adhesive tape roller and the wind-up roller are rotationally installed on the supports arranged on the two sides, and a driving part is connected to a conveying roller; a containing frame is fixedly installed on the support, an installation sleeve is installed in the containing frame in a sliding mode, a movable block is installed in the installation sleeve in a telescopic mode, the movable roller is rotatably installed on the movable block, a second telescopic piece is fixedly installed in the containing frame, the output end of the second telescopic piece is connected with the installation sleeve, and when the movable block is contracted into the installation sleeve, the movable block is connected with the second telescopic piece. An adhesive tape is wound on the adhesive tape roller, the moving roller and the winding roller; and the surface of the workpiece is fully covered with dust through the adhesive tape, screen printing operation can be conducted immediately after dust is treated, and the situation that dust adheres to the workpiece after dust is removed through a dust adhering roller in the prior art can be avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of screen printing machines, in particular to a screen printing machine with a dust removal function and a use method thereof. Background Art

[0002] During the screen printing process, the product to be screened needs to be dusted before printing to ensure the printing effect of the product. In the existing technology, dust removal rollers are usually used to remove dust from the product to be screened. The dust removal rollers roll on the surface of the product, thereby adhering impurities on the surface of the product to the dust removal rollers.

[0003] However, after the dust removal roller is used repeatedly, dust adhered to the dust removal roller will affect the next dust collection effect. Secondly, there is a gap between dust collection and screen printing operations, and it is difficult to ensure that dust will not be deposited on the product surface again during this gap. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a screen printing machine with a dust removal function.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a screen printing machine with a dust removal function, comprising a screen printing box, a conveyor belt, and a conveyor roller, wherein two conveyor rollers are provided, the conveyor belt is wound around the conveyor rollers, the screen printing box is arranged above the conveyor belt, and further comprises a tape roller, a winding roller, a moving roller, and a bracket, wherein the brackets are arranged on both sides of the transmission belt, and the tape roller and the winding roller are rotatably mounted on the brackets arranged on both sides, and the conveyor roller is connected to a driving member, and the driving member is used to drive the conveyor roller to rotate intermittently;

[0006] A accommodating frame is fixedly mounted on the bracket, a mounting sleeve is slidably mounted in the accommodating frame, a movable block is telescopically mounted in the mounting sleeve, an ejection groove corresponding to the movable block is opened on the accommodating frame, the movable roller is rotatably mounted on the movable block, a second telescopic member is fixedly mounted in the accommodating frame, an output end of the second telescopic member is connected to the mounting sleeve, when the movable block is retracted into the mounting sleeve, the second telescopic member is used to drive the mounting sleeve and the movable block to move in the accommodating frame, and the tape roller, the movable roller and the winding roller are wound with tape;

[0007] A top plate is fixedly mounted on the bracket, extension plates are fixedly mounted on both sides of the screen printing box, and a first telescopic member is connected between the extension plates and the top plate.

[0008] As a further improvement scheme: it also includes an extrusion component, one end of the extrusion component is in contact with the movable block, the other end of the extrusion component is connected to the extension plate, and a second spring is connected between the mounting sleeve and the movable block.

[0009] As a further improvement scheme: the extrusion assembly includes a first rack, a gear and a second rack, the first rack is slidably installed on the bracket, the second rack is fixedly installed on the extension plate, and the gear is rotatably installed on the bracket, and the two sides of the gear are respectively engaged with the first rack and the second rack.

[0010] As a further improvement scheme: it also includes an ink cavity, a first flexible frame, a driving assembly and a second flexible frame. The driving assembly is installed on the silk screen box, and the driving assembly is connected to the ink cavity. The driving assembly is used to drive the ink cavity to move in the silk screen box. The first flexible frame and the second flexible frame are fixedly installed on the bottom of the ink cavity. The second flexible frame and the second flexible frame are fitted together to form a hollow frame. The hollow frame formed by the first flexible frame and the second flexible frame is connected to the ink cavity. When the ink cavity, the first flexible frame and the second flexible frame are in a vertical state, the bottom of the first flexible frame and the second flexible frame are fitted with the lower bottom surface of the silk screen box.

[0011] As a further improvement scheme: the driving assembly includes a motor, a threaded rod and a movable plate, the motor is installed on the screen printing box, the output end of the motor is installed with a threaded rod, the threaded rod is threadedly connected to the movable plate, and the movable plate is connected to the ink chamber.

[0012] As a further improvement scheme: a support frame is telescopically installed on the movable plate, an ink cavity is rotatably installed on the support frame, an elastic telescopic component is installed between the movable plate and the support frame, guide strips are fixedly installed on both sides of the screen printing box, the support frame is in close contact with the guide strips and is located below the guide strips, when the support frame is located at the highest point on both sides of the guide strips, the ink cavity, the first flexible frame and the second flexible frame are in a vertical state.

[0013] As a further improvement: the elastic telescopic component includes a first spring and a telescopic rod, and the first spring and the telescopic rod are installed between the movable plate and the support frame.

[0014] As a further improvement, limit rods are fixedly mounted on both sides of the inner wall of the support frame, and the limit rods are used to limit the maximum rotation angle of the ink cavity.

[0015] As a further improvement, a plurality of partitions are provided on the conveyor belt.

[0016] The present invention also provides a method for using a screen printing machine with a dust removal function. Based on the screen printing machine with a dust removal function, the method includes:

[0017] When the workpiece reaches the screen printing station, the movable block is retracted into the mounting sleeve;

[0018] The movable block is pushed by the second telescopic member to rotate the movable roller to adhere the tape to the surface of the workpiece;

[0019] After the adhesion is completed, the movable block is pushed in the opposite direction by the second telescopic member, and the winding roller is driven to rotate and rewind;

[0020] The first telescopic member drives the screen printing box to descend and fit the workpiece to perform screen printing.

[0021] Compared with the prior art, the beneficial effects of the present invention are: by setting the movable block to be telescopic, the tape can be located above the workpiece when the tape is not being stained with dust; when the tape is being stained with dust, the movable block can cause the movable roller to rotate on the surface of the workpiece during movement, thereby adhering the tape to the surface of the workpiece, so that the tape fully covers the surface of the workpiece with dust; then, during the reverse movement of the movable block, the winding roller rotates to wind up the tape, thereby completing the stained workpiece surface and the tape recovery, and the dust treatment effect is better. After the dust is treated, the silk screen operation can be carried out immediately, which can avoid the dust adhesion after dust removal by the dust-sticking roller in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a screen printing machine with a dust removal function;

[0023] Figure 2 This is a partial structural diagram of a screen printing machine with a dust removal function;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of a conveyor belt of a screen printing machine with a dust removal function;

[0025] Figure 4 This is a schematic diagram of the structure of an extrusion component of a screen printing machine with a dust removal function;

[0026] Figure 5 This is a schematic diagram of the second spring structure of a screen printing machine with a dust removal function;

[0027] Figure 6 This is an enlarged schematic diagram of a housing frame structure of a screen printing machine with a dust removal function;

[0028] Figure 7 This is a schematic diagram of the structure of a screen printing box of a screen printing machine with a dust removal function;

[0029] Figure 8 This is a schematic diagram of the drive assembly structure of a screen printing machine with a dust removal function;

[0030] Figure 9 This is a schematic diagram of the ink chamber structure of a screen printing machine with a dust removal function;

[0031] Figure 10 A schematic diagram of the cross-sectional structure of the ink chamber of a screen printing machine with dust removal function Figure 1 ;

[0032] Figure 11 A schematic diagram of the cross-sectional structure of the ink chamber of a screen printing machine with dust removal function Figure 2 ;

[0033] Figure 12 This is a schematic diagram of the guide bar and support frame structure of a screen printing machine with dust removal function;

[0034] Figure 13 This is a schematic diagram of the guide bar structure of a screen printing machine with a dust removal function;

[0035] In the figure: 100, workpiece; 1, conveyor belt; 2, screen printing box; 3, tape roller; 30, first fixed plate; 4, take-up roller; 40, second fixed plate; 5, extrusion assembly; 51, first rack; 52, gear; 53, second rack; 6, moving roller; 60, movable block; 7, drive assembly; 71, transmission wheel; 72, threaded rod; 73, belt; 74, motor; 8, elastic expansion assembly; 81, expansion rod; 82, first spring; 9, ink chamber; 10 , support frame; 11. Mounting plate; 12. Conveyor roller; 13. Driving member; 14. Partition; 15. Bracket; 16. Top plate; 17. Support plate; 18. Adhesive tape; 19. First telescopic member; 20. Extension plate; 21. Accommodating frame; 210. Ejection groove; 22. Mounting sleeve; 23. Second spring; 24. Second telescopic member; 25. Moving plate; 26. First flexible frame; 27. Rotating shaft; 28. Limiting rod; 29. Second flexible frame; 31. Guide strip. DETAILED DESCRIPTION

[0036] The technical solution of the present application will be further described in detail below in conjunction with specific implementation methods.

[0037] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0038] See also Figures 1 to 13In one embodiment, a screen printing machine with a dust removal function includes a screen printing box 2, a conveyor belt 1, and a conveyor roller 12. The conveyor roller 12 is provided with two, the conveyor belt 1 is wound around the conveyor roller 12, and the screen printing box 2 is arranged above the conveyor belt 1. The screen printing machine also includes a tape roller 3, a winding roller 4, a moving roller 6, and a bracket 15. The bracket 15 is arranged on both sides of the transmission belt. The tape roller 3 and the winding roller 4 are rotatably mounted on the brackets 15 arranged on both sides. The conveyor roller 12 is connected to a driving member 13, and the driving member 13 is used to drive the conveyor roller 12 to rotate intermittently.

[0039] The bracket 15 is fixedly mounted with a receiving frame 21, a mounting sleeve 22 is slidably mounted in the receiving frame 21, a movable block 60 is telescopically mounted in the mounting sleeve 22, and an ejection groove 210 corresponding to the movable block 60 is opened on the receiving frame 21. The movable roller 6 is rotatably mounted on the movable block 60. A second telescopic member 24 is fixedly mounted in the receiving frame 21, and the output end of the second telescopic member 24 is connected to the mounting sleeve 22. When the movable block 60 is retracted into the mounting sleeve 22, the second telescopic member 24 is used to drive the mounting sleeve 22 and the movable block 60 to move in the receiving frame 21. The tape roller 3, the movable roller 6 and the winding roller 4 are wound with tape 18;

[0040] A top plate 16 is fixedly mounted on the bracket 15 , and extension plates 20 are fixedly mounted on both sides of the screen printing box 2 . A first telescopic member 19 is connected between the extension plates 20 and the top plate 16 .

[0041] In this embodiment, the conveying roller 12 is rotatably mounted on the mounting plate 11, the tape roller 3 is rotatably mounted on the first fixed plate 30, the first fixed plate 30 is fixedly mounted on the bracket 15, the winding roller 4 is rotatably mounted on the second fixed plate 40, and the second fixed plate 40 is fixedly mounted on the bracket 15. The driving member 13 can use a motor to drive the half gear to rotate, thereby driving the conveying roller 12 to rotate intermittently through the engagement of the half gear and the full gear. The driving member 13 can also be directly driven by a stepping motor. In this embodiment, it is directly driven by a stepping motor.

[0042] A supporting plate 17 is fixedly mounted on the bracket 15 inside the conveyor belt 1 . The supporting plate 17 is in contact with the upper half of the conveyor belt 1 . The supporting plate 17 is used to support the workpiece 100 on the surface of the conveyor belt 1 during the screen printing process.

[0043] When performing silk screen printing, first place the workpiece 100 on the conveyor belt 1. Driven by the stepper motor, the conveyor belt 1 rotates intermittently. When the workpiece 100 moves to the silk screen printing station, the conveyor belt 1 is in a stationary state. By squeezing the movable block 60, when the movable block 60 is squeezed into the mounting sleeve 22, the second telescopic member 24 is started to extend the second telescopic member 24. The extension of the second telescopic member 24 can drive the mounting sleeve 22 and the movable block 60 to move. During the movement, the tape roller 3 rotates to unwind the tape 18, and the winding roller 4 remains stationary. Both the winding roller 4 and the tape roller 3 can only rotate in one direction. The tape 18 on the moving roller 6 is in close contact with the surface of the workpiece 100. The moving roller 6 can rotate while moving, and the tape 18 is pressed tightly against the workpiece 1 by rotation. 00 surface, when the moving roller 6 moves to the farthest end, the adhesion of the adhesive tape 18 to the surface of the workpiece 100 is completed, and then the second telescopic member 24 is started again, and the mounting sleeve 22 and the movable block 60 are driven to move in the opposite direction by the second telescopic member 24. During the reverse movement, the winding roller 4 is driven to rotate and wind by electric drive. During the winding process, the moving roller 6 still rotates on the surface of the workpiece 100 and can fix the workpiece 100. When the moving roller 6 completely leaves the surface of the workpiece 100, the movable block 60 and the mounting sleeve 22 just move to the bottom of the ejection groove 210, and then the movable block 60 extends, and the first telescopic member 19 is started to extend the first telescopic member 19. The first telescopic member 19 drives the screen printing box 2 to descend, and the screen printing box 2 moves to the surface of the workpiece 100 for screen printing.

[0044] After one screen printing is completed, the stepping motor drives the conveying roller 12 to rotate, so that the adjacent workpiece 100 moves to the screen printing station, thereby completing one cycle.

[0045] By telescoping the movable block 60, the adhesive tape 18 can be positioned above the workpiece 100 when the adhesive tape 18 is not being stained with dust. When the adhesive tape 18 is being stained with dust, the movable block 60 can rotate the movable roller 6 on the surface of the workpiece 100 during movement, thereby adhering the adhesive tape 18 to the surface of the workpiece 100, so that the adhesive tape 18 completely covers the surface of the workpiece 100 with dust. Then, during the reverse movement of the movable block 60, the winding roller 4 rotates to wind up the adhesive tape 18, thereby completing the stained dust on the surface of the workpiece 100 and the recycling of the adhesive tape 18. The dust treatment effect is better, and the silk screen printing operation can be carried out immediately after the dust is treated, which can avoid the dust adhesion after the dust removal by the dust-stained roller in the prior art.

[0046] See also Figure 4 、 Figure 5In one embodiment, it also includes an extrusion component 5, one end of the extrusion component 5 is in contact with the movable block 60, and the other end of the extrusion component 5 is connected to the extension plate 20, and a second spring 23 is connected between the mounting sleeve 22 and the movable block 60.

[0047] In this embodiment, by providing the pressing assembly 5 , the position of the moving roller 6 can be set above the workpiece 100 , thereby preventing the adhesive tape 18 from affecting the movement and transportation of the workpiece 100 on the conveyor belt 1 .

[0048] See also Figure 4 、 Figure 5 and Figure 6 In one embodiment, the extrusion assembly 5 includes a first rack 51, a gear 52 and a second rack 53. The first rack 51 is slidably mounted on the bracket 15, the second rack 53 is fixedly mounted on the extension plate 20, and the gear 52 is rotatably mounted on the bracket 15. The two sides of the gear 52 are respectively engaged with the first rack 51 and the second rack 53.

[0049] In this embodiment, the extrusion assembly 5 can also use a fixed pulley and a connecting rope to push the movable block 60 to retract into the installation sleeve 22 during the upward movement of the screen printing box 2. The specific structure is not limited to the structure provided in the embodiment of the present invention.

[0050] When the workpiece 100 moves to the screen printing station, the conveyor belt 1 is in a stationary state. Then, the screen printing box 2 moves upward, and at the same time drives the second rack 53 to move upward. The movement of the second rack 53 drives the gear 52 to rotate. After the gear 52 rotates, it drives the first rack 51 downward to squeeze the movable block 60. When the movable block 60 is squeezed into the mounting sleeve 22, the second telescopic member 24 is started to extend the second telescopic member 24. The extension of the second telescopic member 24 can drive the mounting sleeve 22 and the movable block 60 to move. During the movement, the tape roller 3 rotates to unwind the tape 18, and the winding roller 4 remains stationary. The winding roller 4 and the tape roller 3 can only rotate in one direction. The tape 18 on the moving roller 6 is close to the surface of the workpiece 100. The moving roller 6 can rotate when moving, and the tape 18 is pressed tightly against the surface of the workpiece 100 by rotation. When the moving When the roller 6 moves to the farthest end, the adhesion of the tape 18 to the surface of the workpiece 100 is completed, and then the second telescopic member 24 is started again, and the mounting sleeve 22 and the movable block 60 are driven to move in the opposite direction by the second telescopic member 24. During the reverse movement, the winding roller 4 is driven to rotate and wind by electric drive. When the moving roller 6 is about to completely leave the surface of the workpiece 100, the first telescopic member 19 is started to extend the first telescopic member 19, and the first telescopic member 19 drives the screen printing box 2 to descend. During the descent, it also drives the first rack 51 to move upward. When the moving roller 6 completely leaves the surface of the workpiece 100, the movable block 60 and the mounting sleeve 22 just move to the bottom of the ejection groove 210, and then the movable block 60 pops out under the action of the second spring 23. When the gear 52 disengages from the second rack 53, the first rack 51 moves to the upper surface of the movable block 60 under the action of gravity.

[0051] See also Figure 1 、 Figure 2 In one embodiment, it further includes an ink cavity 9, a first flexible frame 26, a driving component 7 and a second flexible frame 29. The driving component 7 is installed on the screen printing box 2, and the driving component 7 is connected to the ink cavity 9. The driving component 7 is used to drive the ink cavity 9 to move in the screen printing box 2. The first flexible frame 26 and the second flexible frame 29 are fixedly installed at the bottom of the ink cavity 9. The second flexible frame 29 and the second flexible frame 29 are attached to each other to form a hollow frame. The hollow frame formed by the first flexible frame 26 and the second flexible frame 29 is connected to the ink cavity 9. When the ink cavity 9, the first flexible frame 26 and the second flexible frame 29 are in a vertical state, the bottom of the first flexible frame 26 and the second flexible frame 29 are attached to the lower bottom surface of the screen printing box 2.

[0052] In this embodiment, the ink cavity 9 is a hollow cavity filled with ink. A connecting tube (not shown in the figure) is provided on the surface of the ink cavity 9 and is connected to the ink pumping mechanism.

[0053] When screen printing is performed, the driving assembly 7 drives the ink chamber 9, the first flexible frame 26 and the second flexible frame 29 to perform mobile screen printing.

[0054] See also Figure 7 、 Figure 8 In one embodiment, the driving assembly 7 includes a motor 74, a threaded rod 72 and a movable plate 25. The motor 74 is installed on the screen printing box 2. The output end of the motor 74 is installed with a threaded rod 72. The threaded rod 72 is threadedly connected to the movable plate 25, and the movable plate 25 is connected to the ink chamber 9.

[0055] In this embodiment, there are two threaded rods 72, and a transmission wheel 71 is fixedly mounted on each of the two threaded rods 72. The two transmission wheels 71 are driven by a belt 73. There are two threaded rods 72, and the provision of multiple threaded rods 72 can ensure the smooth movement of the movable plate 25.

[0056] The driving assembly 7 can also be driven by a hydraulic telescopic rod 81 and is not limited to the structure provided in the embodiment of the present invention.

[0057] See also Figures 9 to 13 In one embodiment, a support frame 10 is telescopically mounted on the movable plate 25, and an ink chamber 9 is rotatably mounted on the support frame 10 via a rotating shaft 27. An elastic telescopic component 8 is installed between the movable plate 25 and the support frame 10. Guide strips 31 are fixedly mounted on both sides of the screen printing box 2. The support frame 10 is tightly attached to and located below the guide strips 31. When the support frame 10 is located at the highest point on both sides of the guide strips 31, the ink chamber 9, the first flexible frame 26 and the second flexible frame 29 are in a vertical state.

[0058] In this embodiment, the guide bar 31 is in an inverted trapezoidal shape as a whole, and both ends of the guide bar 31 are inclined upward.

[0059] When the screen printing box 2 moves to the surface of the workpiece 100 and is about to be screen printed, the motor 74 is first used to drive the threaded rod 72 to rotate. When the threaded rod 72 rotates, the movable plate 25 moves. When moving, the support frame 10 is moved horizontally and descends at the same time under the action of the guide bar 31. At this time, since, in the initial state (the movable plate 25 is located at both ends of the screen printing box 2), the bottoms of the first flexible frame 26 and the second flexible frame 29 are in contact with the lower bottom surface of the screen printing box 2, during the descent, the bottoms of the first flexible frame 26 and the second flexible frame 29 remain in contact with the lower bottom surface of the screen printing box 2, and then the ink cavity 9 is directed toward The moving direction is tilted, the ink cavity 9, the first flexible frame 26 and the second flexible frame 29 are tilted, and the space between the first flexible frame 26 and the second flexible frame 29 is filled with ink. Then, under the action of the rotation of the threaded rod 72, the workpiece 100 is screen-printed. When the screen printing is completed, the support frame 10 reaches the other end of the screen printing box 2 and reaches the highest point of the guide bar 31. At this time, under the action of gravity, the ink cavity 9, the first flexible frame 26 and the second flexible frame 29 are restored to a vertical shape. When the next screen printing is performed, the movable plate 25 moves in the opposite direction, that is, the ink cavity 9, the first flexible frame 26 and the second flexible frame 29 are in a reverse tilted state.

[0060] When one screen printing is completed, the screen printing box 2 moves upward, and at the same time drives the second rack 53 to move upward. The movement of the second rack 53 drives the gear 52 to rotate. After the gear 52 rotates, it drives the first rack 51 downward to squeeze the movable block 60. When the movable block 60 is squeezed into the mounting sleeve 22, the second telescopic member 24 is started to extend the second telescopic member 24. The extension of the second telescopic member 24 can drive the mounting sleeve 22 and the movable block 60 to move, thereby completing a cycle.

[0061] By arranging the ink in the ink cavity 9, the prior art method of completely exposing the ink in the screen printing box is abandoned. In the prior art, the ink is easily dried up, resulting in ink waste. In the embodiment of the present invention, the first flexible frame 26 and the second flexible frame 29 can always maintain contact with the bottom surface of the screen printing box 2 during the movement, so that after the screen printing is completed, when the first flexible frame 26 and the second flexible frame 29 move to the two ends, the ink cavity 9, the bottom surface of the screen printing box 2, the first flexible frame 26 and the second flexible frame 29 together form a sealed cavity, which can protect the ink.

[0062] Secondly, by making the ink cavity 9, the first flexible frame 26 and the second flexible frame 29 inclined and then performing mobile screen printing, a downward squeezing force can be applied to the ink, thereby ensuring the formation of the screen printing pattern.

[0063] See also Figure 9 In one embodiment, the elastic telescopic component 8 includes a first spring 82 and a telescopic rod 81 , and a plurality of first springs 82 and telescopic rods 81 are installed between the movable plate 25 and the support frame 10 .

[0064] In this embodiment, the first spring 82 is located outside the telescopic rod 81 , and the first spring 82 and the telescopic rod 81 are coaxially arranged. There are four first springs 82 and four telescopic rods 81 .

[0065] The elastic telescopic component 8 may also be made of a silicone block and is not limited to the structure provided in the embodiment of the present invention.

[0066] The first spring 82 and the telescopic rod 81 are provided to correspond to the guide bar 31 . The first spring 82 can ensure that the support frame 10 and the guide bar 31 are always in contact with each other according to the shape of the guide bar 31 .

[0067] See also Figures 9 to 13 In one embodiment, limiting rods 28 are fixedly installed on both sides of the inner wall of the support frame 10, and the limiting rods 28 are used to limit the maximum rotation angle of the ink chamber 9.

[0068] In this embodiment, when the ink cavity 9 is in contact with the limiting rod 28 , the ink cavity 9 rotates to the maximum angle. At this time, the angle formed by the ink cavity 9 and the bottom surface of the screen printing box 2 is 60 degrees.

[0069] See also Figure 1 、 Figure 2 In one embodiment, a plurality of partitions 14 are provided on the conveyor belt 1 .

[0070] In this embodiment, the spacing between adjacent partitions 14 is the same. By providing the partitions 14, when the moving roller 6 adheres to the surface of the workpiece 100, the workpiece 100 can be prevented from moving on the surface of the conveyor belt 1. The partitions 14 can play a role in fixing the position while ensuring the spacing.

[0071] The working process of the present invention is as follows: first, the workpiece 100 is placed on the conveyor belt 1, and the partition 14 is provided so that the workpiece 100 can maintain a certain distance. Under the drive of the stepping motor, the conveyor belt 1 is intermittently rotated. When the workpiece 100 moves to the screen printing station, the conveyor belt 1 is in a stationary state. Then, at this time, the screen printing box 2 moves upward, and at the same time drives the second rack 53 to move upward. The movement of the second rack 53 drives the gear 52 to rotate. After the gear 52 rotates, it drives the first rack 51 downward to squeeze the movable block 60. When the movable block 60 is squeezed into the installation sleeve 22, the second telescopic member 24 is started to extend the second telescopic member 24. The extension of the second telescopic member 24 can drive the installation sleeve 22 and the movable block 60 to move forward. The adhesive tape 18 is pressed against the surface of the workpiece 100 by the moving roller 6, and the adhesive tape 18 is pressed against the surface of the workpiece 100 by the moving roller 6. When the moving roller 6 moves to the farthest end, the adhesion of the adhesive tape 18 to the surface of the workpiece 100 is completed, and then the second telescopic member 24 is started again, and the mounting sleeve 22 and the movable block 60 are driven to move in the opposite direction by the second telescopic member 24. During the reverse movement, the winding roller 4 is driven by electricity to rotate and wind. During the winding process, the moving roller 6 still rotates on the surface of the workpiece 100, which can be used to press the workpiece 100 to the workpiece 100. 00 is fixed, and when the moving roller 6 is about to completely leave the surface of the workpiece 100, the first telescopic member 19 is started to extend the first telescopic member 19, and the first telescopic member 19 drives the screen printing box 2 to descend, and at the same time drives the first rack 51 to move upward during the descent. When the moving roller 6 completely leaves the surface of the workpiece 100, the movable block 60 and the mounting sleeve 22 just move to the bottom of the ejection groove 210, and then the movable block 60 pops out under the action of the second spring 23. When the gear 52 is disengaged from the second rack 53, the first rack 51 moves to the upper surface of the movable block 60 under the action of gravity. When the screen printing box 2 moves to the surface of the workpiece 100 and is about to be screen-printed, the threaded rod 72 is first driven to rotate by the motor 74, and when the threaded rod 72 rotates At the same time, the movable plate 25 moves. When moving, the support frame 10 moves horizontally and descends at the same time under the action of the guide bar 31. At this time, since, in the initial state (the movable plate 25 is located at both ends of the screen printing box 2), the bottoms of the first flexible frame 26 and the second flexible frame 29 are in contact with the lower bottom surface of the screen printing box 2, during the descending process, the bottoms of the first flexible frame 26 and the second flexible frame 29 remain in contact with the lower bottom surface of the screen printing box 2, and then the ink cavity 9 is tilted in the moving direction. The ink cavity 9, the first flexible frame 26 and the second flexible frame 29 are tilted, and the space between the first flexible frame 26 and the second flexible frame 29 is filled with ink. Then, under the action of the rotation of the threaded rod 72,When screen printing is completed on the workpiece 100, the support frame 10 reaches the other end of the screen printing box 2 and the highest point of the guide bar 31. At this time, under the action of gravity, the ink chamber 9, the first flexible frame 26 and the second flexible frame 29 return to a vertical state. When the next screen printing is performed, the movable plate 25 moves in the opposite direction, that is, the ink chamber 9, the first flexible frame 26 and the second flexible frame 29 are in a reverse tilted state.

[0072] When one screen printing is completed, the screen printing box 2 moves upward, and at the same time drives the second rack 53 to move upward. The movement of the second rack 53 drives the gear 52 to rotate. After the gear 52 rotates, it drives the first rack 51 downward to squeeze the movable block 60. When the movable block 60 is squeezed into the mounting sleeve 22, the second telescopic member 24 is started to extend the second telescopic member 24. The extension of the second telescopic member 24 can drive the mounting sleeve 22 and the movable block 60 to move, thereby completing a cycle.

[0073] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be embraced herein, and any reference signs in the claims should not be construed as limiting the claims to which they relate.

[0074] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A screen printing machine with a dust removal function, comprising a screen printing box (2), a conveyor belt (1) and a conveyor roller (12), wherein two conveyor rollers (12) are provided, the conveyor belt (1) is wound around the conveyor roller (12), and the screen printing box (2) is provided above the conveyor belt (1), characterized in that: It also includes a tape roller (3), a winding roller (4), a moving roller (6) and a bracket (15), wherein the bracket (15) is arranged on both sides of the transmission belt, and the tape roller (3) and the winding roller (4) are rotatably mounted on the brackets (15) arranged on both sides, and the conveying roller (12) is connected to a driving member (13), and the driving member (13) is used to drive the conveying roller (12) to rotate intermittently; A receiving frame (21) is fixedly mounted on the bracket (15), a mounting sleeve (22) is slidably mounted in the receiving frame (21), a movable block (60) is telescopically mounted in the mounting sleeve (22), an ejection groove (210) corresponding to the movable block (60) is provided on the receiving frame (21), the movable roller (6) is rotatably mounted on the movable block (60), a second telescopic member (24) is fixedly mounted in the receiving frame (21), an output end of the second telescopic member (24) is connected to the mounting sleeve (22), when the movable block (60) is retracted into the mounting sleeve (22), the second telescopic member (24) is used to drive the mounting sleeve (22) and the movable block (60) to move in the receiving frame (21), and the tape roller (3), the movable roller (6) and the winding roller (4) are wound with tape (18); A top plate (16) is fixedly mounted on the bracket (15), and extension plates (20) are fixedly mounted on both sides of the screen printing box (2). A first telescopic member (19) is connected between the extension plates (20) and the top plate (16).

2. The screen printing machine with dust removal function according to claim 1, characterized in that: It also includes an extrusion assembly (5), one end of which is in contact with and connected to the movable block (60), and the other end of which is connected to the extension plate (20), and a second spring (23) is connected between the mounting sleeve (22) and the movable block (60).

3. The screen printing machine with dust removal function according to claim 2, characterized in that: The extrusion assembly (5) includes a first rack (51), a gear (52) and a second rack (53); the first rack (51) is slidably mounted on the bracket (15); the second rack (53) is fixedly mounted on the extension plate (20); the gear (52) is rotatably mounted on the bracket (15); and both sides of the gear (52) are respectively meshed with the first rack (51) and the second rack (53).

4. The screen printing machine with dust removal function according to claim 1, characterized in that: The invention also includes an ink cavity (9), a first flexible frame (26), a driving assembly (7) and a second flexible frame (29). The driving assembly (7) is installed on the screen printing box (2), and the driving assembly (7) is connected to the ink cavity (9). The driving assembly (7) is used to drive the ink cavity (9) to move in the screen printing box (2). The first flexible frame (26) and the second flexible frame (29) are fixedly installed at the bottom of the ink cavity (9). The second flexible frame (29) and the second flexible frame (29) are attached to each other to form a hollow frame. The hollow frame formed by the first flexible frame (26) and the second flexible frame (29) is connected to the ink cavity (9). When the ink cavity (9), the first flexible frame (26) and the second flexible frame (29) are in a vertical state, the bottoms of the first flexible frame (26) and the second flexible frame (29) are attached to the lower bottom surface of the screen printing box (2).

5. The screen printing machine with dust removal function according to claim 4, characterized in that: The driving assembly (7) comprises a motor (74), a threaded rod (72) and a movable plate (25); the motor (74) is mounted on the screen printing box (2); the output end of the motor (74) is mounted with a threaded rod (72); the threaded rod (72) is threadedly connected to the movable plate (25); and the movable plate (25) is connected to the ink chamber (9).

6. The screen printing machine with dust removal function according to claim 5, characterized in that: A support frame (10) is telescopically mounted on the movable plate (25), an ink chamber (9) is rotatably mounted on the support frame (10), an elastic telescopic component (8) is mounted between the movable plate (25) and the support frame (10), guide bars (31) are fixedly mounted on both sides of the screen printing box (2), the support frame (10) is in close contact with the guide bars (31) and is located below the guide bars (31), and when the support frame (10) is located at the highest point on both sides of the guide bars (31), the ink chamber (9), the first flexible frame (26) and the second flexible frame (29) are in a vertical state.

7. The screen printing machine with dust removal function according to claim 6, characterized in that: The elastic telescopic assembly (8) comprises a first spring (82) and a telescopic rod (81), and the first spring (82) and the telescopic rod (81) are installed between the movable plate (25) and the support frame (10).

8. The screen printing machine with dust removal function according to claim 6 or 7, characterized in that: Limiting rods (28) are fixedly mounted on both sides of the inner wall of the support frame (10), and the limiting rods (28) are used to limit the maximum rotation angle of the ink cavity (9).

9. A screen printing machine with dust removal function according to any one of claims 1 to 7, characterized in that: A plurality of partitions (14) are provided on the conveyor belt (1).

10. A method for using a screen printing machine with a dust removal function, based on the screen printing machine with a dust removal function according to any one of claims 1 to 9, characterized in that: The method comprises: When the workpiece (100) reaches the screen printing station, the movable block (60) is retracted into the mounting sleeve (22); The movable block (60) is pushed by the second telescopic member (24), so that the movable roller (6) rotates to adhere the adhesive tape (18) to the surface of the workpiece (100); After the adhesion is completed, the movable block (60) is pushed in the reverse direction by the second telescopic member (24), and the winding roller (4) is driven to rotate and rewind; The screen printing box (2) is driven to descend by the first telescopic member (19) to fit the workpiece (100) for screen printing.

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