Quick-release self-cleaning mechanism for printing machine

Abstract

The application discloses a quick-release type self-cleaning mechanism for a printing machine and relates to the technical field of printing machines.The quick-release type self-cleaning mechanism comprises a printing machine body, a printing roller installed on the printing machine body, a side plate, a connecting plate fixedly installed on the side plate, a dismounting mechanism for mounting the side plate and the connecting plate on the printing machine, a servo motor fixedly installed on the connecting plate, a round wheel rotatably installed in the connecting plate, and a circular ring arranged in the connecting plate, wherein a long rod is fixedly installed on the circular ring, a sliding block is rotatably installed on the long rod, and the sliding block is horizontally slidably installed in the connecting plate along the long edge direction of the connecting plate.The servo motor can drive the connecting rod to reversely rotate, and the scraping frame can be driven to reversely rotate the printing roller or scrape the residual substances on the surface of the printing roller according to the rotating direction of the connecting rod.

Description

Technical Field

[0001] This invention relates to the field of printing press technology, and more specifically to a quick-release self-cleaning mechanism for printing presses. Background Technology

[0002] There are many types of printing presses, but roller printing presses have high printing efficiency and are therefore widely used. In existing roller printing presses, one side of the printing roller is first immersed in ink during printing. The ink adheres to the outer circumference of the printing roller, and as the printing roller rotates, the ink is printed onto the paper or fabric.

[0003] As printing progresses, the printing rollers usually need to be cleaned after printing. The surface cleaning of the printing rollers is usually done by scraping with a scraper, followed by rinsing. At the same time, the printing rollers often need to be removed for cleaning. Since there are often multiple printing rollers on a printing press, the cleaning process is time-consuming and troublesome. Summary of the Invention

[0004] The purpose of this invention is to provide a quick-release self-cleaning mechanism for printing presses to overcome the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a quick-release self-cleaning mechanism for a printing press, comprising a printing press body on which a printing roller is mounted, and further comprising: a side plate; a connecting plate fixedly mounted on the side plate; a disassembly and assembly mechanism for mounting the side plate and the connecting plate onto the printing press; a servo motor fixedly mounted on the connecting plate; a wheel rotatably mounted within the connecting plate; and a ring disposed within the connecting plate, on which a long rod is fixedly mounted, and on which a slider is rotatably mounted, the slider sliding horizontally along the long edge of the connecting plate. The components are: a rotating plate, a reversible connecting mechanism, and a rotating wheel, which allows the reversible rotation of the wheel to drive the ring to rotate in different modes. A first friction disc and a second friction disc are both fixedly mounted on a long rod, with a connecting rod fixedly mounted on the second friction disc. A vertical plate is slidably mounted inside a side plate, with a connecting rod rotatably mounted on the vertical plate, and a connecting disc and an outer disc mounted on the connecting rod. A slip ring is slidably mounted on the connecting rod along the axial direction, with a long plate fixedly mounted on the slip ring, and a scraper frame slidably mounted on the long plate.

[0006] Preferably, the disassembly and assembly mechanism includes a rotating wheel rotatably mounted on a connecting plate, a bidirectional screw fixedly mounted on the rotating wheel, and sliding plates slidably mounted on both ends of the connecting plate. The two ends of the bidirectional screw are threaded through the two sliding plates respectively, and a limit rod is fixedly mounted on the sliding plates.

[0007] Preferably, the positive and negative connection mechanism includes a displacement block and a pressing block, wherein the displacement block is fixedly mounted on a ring and the pressing block is fixedly mounted on a wheel;

[0008] The extrusion block has a first inclined edge;

[0009] The displacement block has a second oblique edge, and a protrusion is fixedly installed on the displacement block.

[0010] Preferably, a return spring is fixedly installed on the slider, and a rotating ring is fixedly installed on the other end of the return spring.

[0011] Preferably, the size of the first friction disc is larger than that of the second friction disc, and both the first friction disc and the connecting disc have chamfers at their closest points.

[0012] Preferably, a first spring is fixedly installed between the bottom end of the upright plate and the side plate.

[0013] Preferably, a pressing rod is vertically slidably mounted on the side plate, a protruding plate is fixedly mounted on the side wall of the pressing rod, and a second spring is fixedly mounted between the protruding plate and the side plate;

[0014] The top end of the extrusion rod is chamfered.

[0015] Preferably, the scraper frame is fan-shaped.

[0016] Preferably, a connecting spring is fixedly installed between the long plate and the scraper frame.

[0017] In the above technical solution, the present invention provides a quick-release self-cleaning mechanism for printing presses, which has the following beneficial effects: the forward and reverse rotation of the servo motor can drive the connecting rod to rotate in both directions. At the same time, depending on the rotation direction of the connecting rod, the scraper frame can be driven to rotate the printing roller in a different direction or to scrape off the surface residue of the printing roller. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural schematic diagram provided for an embodiment of the present invention;

[0020] Figure 2 Provided for embodiments of the present invention Figure 1 Partial structural diagram;

[0021] Figure 3This is a schematic diagram of the internal structure of the connecting plate provided in an embodiment of the present invention;

[0022] Figure 4 Provided for embodiments of the present invention Figure 3 A schematic diagram of the structure at point A;

[0023] Figure 5 This is a partial structural schematic diagram of the connecting rod provided in an embodiment of the present invention;

[0024] Figure 6 Provided for embodiments of the present invention Figure 5 A schematic diagram of the structure at point B;

[0025] Figure 7 This is a schematic diagram of the forward and reverse connection mechanism provided in an embodiment of the present invention;

[0026] Figure 8 This is a partial structural schematic diagram of the connecting rod provided in an embodiment of the present invention;

[0027] Figure 9 This is a partial structural schematic diagram of the scraper frame provided in an embodiment of the present invention;

[0028] Figure 10 This is a partial structural schematic diagram of the scraper frame provided in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Printing machine body; 2. Printing roller; 31. Side plate; 32. Connecting plate; 33. Rotary wheel; 34. Bidirectional screw; 35. Slide plate; 36. Limiting rod; 41. Servo motor; 42. Friction wheel; 43. Circular wheel; 431. Extrusion block; 431.1. First inclined side; 44. Circular ring; 441. Displacement block; 441.1. Second inclined side; 441.2. Protrusion; 45. Long rod; 46. Slider; 47. Rotary ring; 48. Return spring; 49. First friction disc; 410. Second friction disc; 411. Connecting disc; 412. Connecting rod; 413. Vertical plate; 414. Extrusion rod; 51. Insert plate; 52. Outer disc; 53. Abutment rod; 54. Intermediate wheel; 55. Sliding strip; 56. Slip ring; 57. Long plate; 58. Scraper frame. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Please see Figure 1-10 A quick-release self-cleaning mechanism for a printing press includes a printing press body 1, a printing roller 2 mounted on the printing press body 1, and further includes:

[0033] Side panel 31;

[0034] Connecting plate 32 is fixedly installed on side plate 31;

[0035] The disassembly and assembly mechanism is used to install the side plate 31 and the connecting plate 32 onto the printing press;

[0036] Servo motor 41 is fixedly mounted on connecting plate 32;

[0037] The wheel 43 is rotatably mounted inside the connecting plate 32;

[0038] A circular ring 44 is set inside the connecting plate 32. A long rod 45 is fixedly installed on the circular ring 44. A slider 46 is rotatably installed on the long rod 45. The slider 46 is horizontally slidably installed inside the connecting plate 32 along the long edge direction.

[0039] A forward and reverse connection mechanism is provided between the ring 44 and the wheel 43, so that the forward and reverse rotation of the wheel 43 can drive the ring 44 to rotate in different modes.

[0040] The first friction disc 49 and the second friction disc 410 are both fixedly mounted on the long rod 45, and the second friction disc 410 is fixedly mounted with an abutment rod 53.

[0041] The upright plate 413 is vertically slidably installed inside the side plate 31. A connecting rod 412 is rotatably installed on the upright plate 413. A connecting plate 411 and an outer plate 52 are installed on the connecting rod 412, and the connecting plate 411 is fixedly installed on the surface of the connecting rod 412.

[0042] A slip ring 56 is slidably mounted on a connecting rod 412 along the axial direction, and a long plate 57 is fixedly mounted on the slip ring 56. A scraper frame 58 is slidably mounted on the long plate 57.

[0043] The insert plate 51 is slidably installed inside the connecting rod 412, and the insert plate 51 is fixedly connected to the outer plate 52;

[0044] The forward and reverse rotation of the servo motor 41 can drive the connecting rod 412 to rotate in both directions. At the same time, depending on the rotation direction of the connecting rod 412, the scraper frame 58 can be driven to rotate the printing roller 2 in a different direction or scrape off the residue on the surface of the printing roller 2.

[0045] The servo motor 41 is activated, which drives the friction wheel 42 to rotate. As the friction wheel 42 rotates, it drives the circular wheel 43 to rotate. When the circular wheel 43 rotates, it drives the ring 44 to rotate via a forward and reverse connection mechanism. At this time, the ring 44 drives the first friction disk 49 and the second friction disk 410 to rotate. The rotation of the connecting rod 412 includes a driving mode and a cleaning mode. In the driving mode, the circular wheel 43 drives the ring 44 to rotate smoothly, and the long rod 45 does not move axially. In this mode, the second friction disk 410 connects to the connecting disk 411, and as the long rod 45 rotates, it drives the connecting disk 411 via the second friction disk 410. 1. Rotation causes the connecting disc 411 to drive the connecting rod 412 to rotate. At this time, the scraper frame 58 on the connecting rod 412 will drive the printing roller 2 to rotate, thereby adjusting the surface position. In cleaning mode, the servo motor 41 rotates in the opposite direction, thereby driving the wheel 43 to rotate in the opposite direction as well. At this time, the wheel 43 will first push the ring 44 through the forward and reverse connection mechanism, thereby causing the ring 44 to move slightly axially. At this time, the ring 44 will synchronously drive the long rod 45 to move axially, and the long rod 45 will drive the slider 46 to move. As the long rod 45 moves, it will drive the abutment rod 53 to move. At this time, the abutment rod 53 will press the outer disc 52, thereby causing the outer disc 52 to move. When the outer disc 52 moves, the outer disc 52 will move. When disc 52 moves, it drives insert plate 51 to move. Two slide bars 55 are provided, positioned on either side of intermediate wheel 54. Since insert plate 51 and intermediate wheel 54 are in contact, when insert plate 51 moves, it drives intermediate wheel 54 to rotate. As intermediate wheel 54 rotates, the two slide bars 55 move away from each other. This causes the two slide bars 55 to drive the two slip rings 56 to move away from each other. Simultaneously, the long plates 57 and scraper frames 58 on the two slip rings 56 move synchronously, causing the scraper frame 58 on one slip ring 56 to separate from the scraper frame 58 on the other slip ring 56. At this point, the two scraper frames... 58 no longer abuts, allowing the scraper frame 58 to slide on the long plate 57. At the same time, due to the movement of the long rod 45, it will drive the first friction disc 49 to move. Since the size of the first friction disc 49 is larger than the size of the second friction disc 410, the first friction disc 49 will squeeze the connecting disc 411. At this time, the connecting disc 411 will drive the connecting rod 412 to move towards the printing roller 2. At this time, the scraper frame 58 will be closer to the printing roller 2, and at the same time, the scraper frame 58 can slide on the long plate 57. As the connecting rod 412 rotates, the connecting rod 412 will drive the sharp end of the scraper frame 58 to stick to the printing roller 2, so that the scraper frame 58 scrapes off the residue on the surface of the printing roller 2.

[0046] In another embodiment of the present invention: the disassembly and assembly mechanism includes a rotating wheel 33 rotatably mounted on a connecting plate 32, a bidirectional screw 34 fixedly mounted on the rotating wheel 33, and sliding plates 35 slidably mounted on both ends of the connecting plate 32. The two ends of the bidirectional screw 34 are threaded through the two sliding plates 35 respectively, and a limit rod 36 is fixedly mounted on the sliding plates 35.

[0047] The limiting rod 36 passes through the side plate 31, and the length of the connecting plate 32 and the side plate 31 after connection is adapted to the length between the printing press baffles. At this time, the connecting plate 32 and the two side plates 31 are placed on the inner wall of the printing press baffles, and the scraper frame 58 and the printing roller 2 are aligned. Then, the rotating wheel 33 is rotated. As the rotating wheel 33 rotates, it will drive the two sliding plates 35 to move away from each other. At this time, the two sliding plates 35 will drive the limiting rod 36 on them to press against the printing press baffles, thereby installing the side plate 31 and the connecting plate 32 above the printing roller 2.

[0048] In another embodiment of the present invention: the positive and negative connection mechanism includes a displacement block 441 and a pressing block 431, the displacement block 441 is fixedly mounted on the ring 44, and the pressing block 431 is fixedly mounted on the wheel 43;

[0049] The extrusion block 431 has a first inclined edge 431.1.

[0050] The displacement block 441 has a second inclined side 441.1, and a protrusion 441.2 is fixedly installed on the displacement block 441;

[0051] In drive mode, refer to Figure 7 At this time, the rotation of the wheel 43 is clockwise. At this time, the right-angled side of the pressing block 431 on the wheel 43 will be in contact with the horizontal side of the displacement block 441. At this time, the rotation of the wheel 43 will drive the displacement block 441 to move through the pressing block 431, and synchronously drive the ring 44 to rotate.

[0052] In cleaning mode, the wheel 43 rotates counterclockwise. The rotation of the wheel 43 will cause the first inclined edge 431.1 on the extrusion block 431 to contact the second inclined edge 441.1 on the displacement block 441. The first inclined edge 431.1 will push the second inclined edge 441.1 to move, thereby causing the displacement block 441 to drive the ring 44 to move axially. Until the extrusion block 431 is in contact with the protrusion 441.2, the extrusion block 431 will drive the ring 44 to rotate through the protrusion 441.2, and the extrusion block 431 will no longer push the ring 44 to move axially.

[0053] In another embodiment of the present invention: a return spring 48 is fixedly installed on the slider 46, and a rotating ring 47 is fixedly installed on the other end of the return spring 48;

[0054] The long rod 45 is rotatably mounted inside the slider 46 and passes through the rotating ring 47. When the long rod 45 moves axially, it will move axially within the connecting plate 32 with the help of the slider 46. When the long rod 45 moves axially, it will drive the slider 46 to squeeze the return spring 48. At this time, the return spring 48 will be compressed until in the drive mode, at which point the return spring 48 will push the slider 46 to return to its original position, thereby pushing the long rod 45 to return to its original position. The rotating ring 47 is installed on the inner wall of the connecting plate 32, so that the end of the return spring 48 away from the slider 46 will not move arbitrarily.

[0055] Furthermore, the rotational resistance between the long rod 45 and the slider 46 is less than the sliding resistance of the slider 46 within the connecting plate 32, thus making the axial movement of the long rod 45 easier.

[0056] In another embodiment of the present invention: the size of the first friction disk 49 is larger than the size of the second friction disk 410, and the ends of the first friction disk 49 and the connecting disk 411 that are close to each other are both provided with chamfers;

[0057] When the long rod 45 moves axially, it will drive the first friction disk 49 and the second friction disk 410 to move. As the first friction disk 49 moves, it will squeeze the connecting disk 411, so that the connecting disk 411 moves downward and gets closer to the printing roller 2. The chamfer makes it easier for the first friction disk 49 to squeeze the connecting disk 411.

[0058] When the long rod 45 moves axially, the first friction disc 49 moves toward the connecting disc 411. Because there is a gap between the first friction disc 49 and the connecting disc 411, the abutment rod 53 pushes the outer disc 52 to move first, which causes the insert plate 51 to drive the intermediate wheel 54 to rotate first. This causes the two sets of scraper frames 58 to separate first. At this time, the scraper frame 58 can slide on the long plate 57, so that when the first friction disc 49 pushes the connecting disc 411 to move, the scraper frame 58 will not be stuck on the printing roller 2.

[0059] In another embodiment of the present invention: a first spring is fixedly installed between the bottom end of the upright plate 413 and the side plate 31;

[0060] The connecting rod 412 is rotatably installed inside the upright plate 413. When the first friction disc 49 presses the connecting disc 411, causing the connecting disc 411 to drive the connecting rod 412 to descend, the connecting rod 412 will descend through the upright plate 413. At this time, the first spring will be compressed until the first friction disc 49 moves away from the upright plate. The first spring will then push the upright plate 413 to rise and reset.

[0061] In another embodiment of the present invention: a pressing rod 414 is vertically slidably mounted on the side plate 31, a protruding plate is fixedly mounted on the side wall of the pressing rod 414, and a second spring is fixedly mounted between the protruding plate and the side plate 31;

[0062] The top of the extrusion rod 414 is chamfered;

[0063] As the outer disk 52 moves, it pushes the pressure rod 414 downward through the chamfer on the pressure rod 414. At this time, the pressure rod 414 moves downward until it abuts against the rotating shaft of the printing roller 2, thereby restricting the rotation of the printing roller 2. At the same time, when the outer disk 52 is removed, the second spring will pull the pressure rod 414 upward to reset.

[0064] In another embodiment of the present invention: the scraping frame 58 is fan-shaped;

[0065] Several scraping frames 58 can form a circle, and two sets of scraping frames 58 can form a circle.

[0066] In another embodiment of the present invention: a connecting spring is fixedly installed between the long plate 57 and the scraper frame 58;

[0067] Both sliders 55 are in contact with the intermediate wheel 54. The rotation of the intermediate wheel 54 drives the two sliders 55 to move. When the two sliders 55 move away from each other, the two sets of scraper frames 58 will move away from each other until their sidewalls separate. At this point, the two sets of scraper frames 58 do not interfere with each other, allowing them to slide on the long plate 57. When the two sets of scraper frames 58 move closer together, they partially overlap. (Reference...) Figure 9 When the scraper frames 58 overlap, adjacent scraper frames 58 will interfere with each other, preventing each scraper frame 58 from sliding on the long plate 57 above it. At this time, the scraper frames 58 will form a complete circle, which facilitates the driving of the printing roller 2; while the reference Figure 10 When the scraper frame 58 can slide on the long plate 57, when the tip of the scraper frame 58 comes into contact with the surface of the printing roller 2, it will scrape the residue on the surface of the printing roller 2 and move inward to squeeze the connecting spring. When the scraper frame 58 moves away, the connecting spring will push the scraper frame 58 to reset.

[0068] Furthermore, the intermediate wheel 54 may be provided with protruding teeth, and the slide bar 55 may be provided with toothed grooves. Through the cooperation of the protruding teeth and toothed grooves, the rotation of the intermediate wheel 54 can better drive the slide bar 55 to move.

[0069] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A quick-release self-cleaning mechanism for a printing press, comprising a printing press body (1), wherein a printing roller (2) is mounted on the printing press body (1), characterized in that, Also includes: Side panel (31); A connecting plate (32) is fixedly mounted on a side plate (31); The disassembly and assembly mechanism is used to install the side plate (31) and the connecting plate (32) onto the printing press body (1); A wheel (43) is rotatably mounted inside a connecting plate (32); A circular ring (44) is set inside the connecting plate (32). A long rod (45) is fixedly installed on the circular ring (44). A slider (46) is rotatably installed on the long rod (45). The slider (46) is horizontally slidably installed inside the connecting plate (32) along the long edge direction. A servo motor (41) is fixedly installed on the connecting plate (32) and is used to drive the circular wheel to rotate in both directions. The first friction disc (49) and the second friction disc (410) are both fixedly mounted on the long rod (45), and the second friction disc (410) is fixedly mounted with an abutment rod (53). The size of the first friction disc (49) is larger than the size of the second friction disc (410). A vertical plate (413) is vertically slidably installed inside a side plate (31). A connecting rod (412) is rotatably installed on the vertical plate (413). A connecting plate (411) and an outer plate (52) are installed on the connecting rod (412). The insert plate is slidably installed inside the connecting rod and fixedly connected to the outer plate, and the insert plate and the intermediate wheel are in contact; A slip ring (56) is slidably mounted on a connecting rod (412) along the axial direction, and a long plate (57) is fixedly mounted on the slip ring (56), and a scraper frame (58) is slidably mounted on the long plate (57). A forward and reverse connection mechanism is provided between the ring (44) and the wheel (43) so that the forward and reverse rotation of the wheel (43) can drive the ring (44) to rotate in different modes; In drive mode, the wheel drives the ring to rotate smoothly, the long rod does not move axially, the second friction disk is connected to the connecting disk, and as the long rod rotates, it will drive the connecting disk to rotate through the second friction disk, so that the connecting disk drives the connecting rod to rotate, and the scraper frame on the connecting rod will drive the printing roller to rotate, thereby adjusting the surface position. In cleaning mode, the wheel first pushes the ring through the forward and reverse connection mechanism, causing the ring to move slightly axially. The ring will then drive the long rod to move axially. As the long rod moves, it will drive the abutment rod to move. The abutment rod will press the outer disk, causing the outer disk to move. When the outer disk moves, it will drive the insert plate to move and drive the intermediate wheel to rotate. This will cause the two slide bars set on both sides of the intermediate wheel to move away from each other. The two slide bars will drive the two slide rings to move away from each other, causing the scraper frame on one slide ring to separate from the scraper frame on the other slide ring. The two sets of scraper frames will no longer abut, allowing the scraper frame to slide on the long plate. At the same time, the movement of the long rod will drive the first friction disc to move. The first friction disc will press the connecting disc, causing the connecting rod to move towards the printing roller. The scraper frame will be closer to the printing roller. At this time, as the connecting rod rotates, the connecting rod will drive the sharp end of the scraper frame to stick to the printing roller, so that the scraper frame scrapes off the residue on the surface of the printing roller. A pressing rod is vertically slidably mounted on the side plate, a protruding plate is fixedly mounted on the side wall of the pressing rod, a second spring is fixedly mounted between the protruding plate and the side plate, and a chamfer is provided at the top of the pressing rod; As the outer disc moves, it pushes the pressure bar downwards through the chamfer on the pressure bar. The pressure bar moves downwards until it abuts against the shaft of the printing roller to restrict the rotation of the printing roller.

2. The quick-release self-cleaning mechanism for a printing press according to claim 1, characterized in that, The disassembly and assembly mechanism includes a rotating wheel (33) rotatably mounted on a connecting plate (32), a bidirectional screw (34) fixedly mounted on the rotating wheel (33), and sliding plates (35) slidably mounted on both ends of the connecting plate (32). The two ends of the bidirectional screw (34) are threaded through the two sliding plates (35) respectively, and a limit rod (36) is fixedly mounted on the sliding plate (35).

3. The quick-release self-cleaning mechanism for a printing press according to claim 1, characterized in that, The forward and reverse connection mechanism includes a displacement block (441) and a pressing block (431). The displacement block (441) is fixedly installed on the ring (44), and the pressing block (431) is fixedly installed on the wheel (43). The extrusion block (431) has a first inclined edge (431.1). The displacement block (441) has a second inclined side (441.1) and a protrusion (441.2) is fixedly installed on the displacement block (441).

4. The quick-release self-cleaning mechanism for a printing press according to claim 1, characterized in that, A reset spring (48) is fixedly installed on the slider (46), and a rotating ring (47) is fixedly installed on the other end of the reset spring (48).

5. A quick-release self-cleaning mechanism for a printing press according to claim 1, characterized in that, Both the first friction disc (49) and the connecting disc (411) have chamfers at their closest points.

6. A quick-release self-cleaning mechanism for a printing press according to claim 1, characterized in that, A first spring is fixedly installed between the bottom end of the upright plate (413) and the side plate (31).

7. A quick-release self-cleaning mechanism for a printing press according to claim 1, characterized in that, The scraper frame (58) is fan-shaped.

8. A quick-release self-cleaning mechanism for a printing press according to claim 1, characterized in that, A connecting spring is fixedly installed between the long plate (57) and the scraper frame (58).

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