Anti-marking rolling conveying mechanism and printing equipment

Abstract

The present application relates to an anti-marking rolling conveying mechanism and printing equipment, including a frame located at the discharge port of the printing press, a receiving roller close to the discharge port of the printing press being rotatably connected to the frame; an arc-shaped guide plate located on the side of the receiving roller away from the printing press being fixed on the frame; a transition roller arranged close to the arc-shaped guide plate being rotatably connected to the frame, and the transition roller is located on the side of the arc-shaped guide plate away from the receiving roller; a transition guide plate located on the side of the transition roller away from the arc-shaped guide plate being fixed on the frame, and the bottom end of the transition guide plate is arranged close to the transition roller; an inclined slide plate is fixed on the frame, and the top of the slide plate is located on the side of the transition guide plate away from the transition roller; a suction cup for sucking the back of the paper is arranged between the top of the transition guide plate and the top of the slide plate, and a driving component for driving the suction cup to move is arranged on the slide plate. The present application has the effect of preventing marking when printing ink is present at any position on the printing surface of the paper.

Description

Technical Field

[0001] The present application relates to the technical field of printing, and in particular to an anti-marking rolling conveying mechanism and a printing device. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate loading, inking, pressing, and paper feeding. The working principle of a printing press is: first, the text and image to be printed are made into a printing plate, which is then installed on the printing press. Then, ink is applied to the places on the printing plate where the text and image are, either manually or by the printing press, and then directly or indirectly transferred to paper or other substrates (such as textiles, metal plates, plastics, leather, wood boards, glass, and ceramics), thereby replicating a printed product identical to the printing plate.

[0003] The existing Chinese patent with reference number CN111114102A discloses an anti-marking rolling conveyor assembly and printing equipment. The anti-marking rolling conveyor assembly includes a rotating shaft and a plurality of roller assemblies detachably mounted on the rotating shaft, and there is a spacing between two adjacent roller assemblies.

[0004] With respect to the above-mentioned related technologies, the above-mentioned roller assembly will still contact the edge of the printing surface of the paper and exert force. When there is printing ink on the edge of the printing surface of the paper, the phenomenon of smearing will still occur. Summary of the invention

[0005] In order to prevent the occurrence of puncture when printing ink is present at any position on the printing surface of the paper, the present application provides an anti-puncture rolling conveying mechanism and a printing device.

[0006] The anti-spotting rolling conveying mechanism provided in this application adopts the following technical solutions:

[0007] A pattern-proof rolling conveying mechanism comprises a frame located at the discharge port of a printing press, wherein a receiving roller close to the discharge port of the printing press is rotatably connected to the frame; an arc-shaped guide plate located on the side of the receiving roller away from the printing press and lower than the receiving roller is fixed to the frame; a transition roller arranged close to the arc-shaped guide plate is rotatably connected to the frame, and the transition roller is located on the side of the arc-shaped guide plate away from the receiving roller; a transition guide plate located on the side of the transition roller away from the arc-shaped guide plate and inclined is fixed to the frame, and the bottom end of the transition guide plate is arranged close to the transition roller; an inclined slide plate is fixed to the frame, and the top end of the slide plate is located on the side of the transition guide plate away from the transition roller and higher than the top end of the transition guide plate; a suction cup for sucking the back side of the paper is provided between the top end of the transition guide plate and the top end of the slide plate, and a driving component for driving the suction cup to move is provided on the slide plate.

[0008] By adopting the above technical scheme, the printed paper is sent out from the discharge port of the printing press, the receiving roller contacts the back side of the paper, and cooperates with the gravity of the paper to send it to the arc guide plate. Since the paper sent out from the discharge port of the printing press has a certain speed, the paper relies on the friction force of the receiving roller and its own inertia to slide onto the arc guide plate and then continue to slide onto the transition roller. The transition roller then transports the paper to the transition guide plate, so that one end of the paper is tilted upward. At this time, the suction cup sucks the back side of the paper, and the driving component drives the suction cup to move until the bottom end of the paper is separated from the transition guide plate. At this time, due to the gravity of the paper itself, the bottom end of the paper is downward toward the slide plate. The suction cup releases the paper and the paper can slide along the slide plate to the designated area for stacking. The whole process will not contact the front side of the paper with ink printed on it, and it is beneficial to further dry the ink on the surface of the paper, so that the paper is not easy to scratch the ink when stacking. Finally, when there is printing ink at any position on the printing surface of the paper, no scratching phenomenon will occur.

[0009] Optionally, the frame is provided with a blowing assembly located between the receiving roller and the printing press outlet; the blowing assembly includes an air duct and a plurality of air nozzles, all of the air nozzles are arranged in a row and connected to the same air duct, the air nozzle openings are arranged upward, and the top of the receiving roller is not lower than the printing press outlet.

[0010] By adopting the above technical solution, after the paper comes out of the printing press outlet, the back side of the paper is blown by the air nozzle and can move to the receiving roller more smoothly. The top height setting of the receiving roller can increase the friction between the paper and the receiving roller, making the receiving roller's conveying of the paper more stable. The blowing of air on the paper is also conducive to further drying of the ink.

[0011] Optionally, the air nozzle opening is arranged to be inclined toward the receiving roller.

[0012] By adopting the above technical solution, it is more convenient to move the paper to the receiving roller smoothly, thereby improving the operational stability of the mechanism.

[0013] Optionally, the blowing assembly is also arranged above the transition guide plate, and the air nozzle opening in the blowing assembly is arranged to be inclined downward toward the slide plate.

[0014] By adopting the above technical solution, when the suction cup is about to suck up the paper, the blowing component can directly blow the paper onto the suction cup, making the suction cup more efficient in sucking up the paper; after the suction cup sucks up the paper, the blowing component can directly blow the bottom end of the paper away from the top of the transition guide plate, which can not only speed up the conveying speed, but also improve the work accuracy, and the blowing component can directly blow air on the front side of the paper, which is more conducive to the drying of the ink.

[0015] Optionally, the air ducts in the two groups of blowing assemblies are connected to the same air pump.

[0016] By adopting the above technical solution, costs can be saved and the space occupied by the mechanism can be reduced.

[0017] Optionally, the driving assembly includes a motor, a gear, a rack, a connecting plate and a slide rail, the motor is fixed to the top of the skateboard, the gear is coaxially fixed to the motor output shaft, the connecting plate is inclined and slidably connected to the top of the skateboard through the slide rail, the rack is fixed to the lower surface of the connecting plate and meshes with the gear, and the rack is parallel to the slide rail, and the suction cup is installed at the bottom of the connecting plate.

[0018] By adopting the above technical solution, the motor is started to rotate the gear, and the gear drives the rack to slide, so that the connecting plate slides along the slide rail, thereby improving the moving efficiency of the suction cup.

[0019] Optionally, there are two slide rails, the rack is located in the middle of the lower surface of the connecting plate, and the two slide rails are located on opposite sides of the rack.

[0020] By adopting the above technical solution, the sliding stability of the connecting plate can be improved, thereby improving the movement stability of the suction cup after sucking the paper.

[0021] Optionally, a receiving groove for receiving paper is provided on the frame at the bottom of the slide, a driving cylinder is fixed in the receiving groove, and a load-bearing plate for bearing paper is fixed on the top of the driving cylinder.

[0022] By adopting the above technical solution, after the paper falls onto the load-bearing plate, the driving cylinder can be started according to the thickness of the paper stack to lower the load-bearing plate, so that subsequent paper can be automatically stacked.

[0023] Optionally, the arc-shaped guide plate is provided with a plurality of mounting holes, each of which is rotatably connected to a pulley, and the top of the pulley is flush with the upper surface of the arc-shaped guide plate.

[0024] By adopting the above technical solution, the friction force of the paper on the arc-shaped guide plate can be reduced, making the transportation of the paper smoother.

[0025] The present application also provides a printing device, including the anti-marking rolling conveying mechanism as described above.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The receiving roller contacts the back of the paper and sends it to the arc-shaped guide plate, and then continues to slide to the transition roller. The transition roller then transports the paper to the transition guide plate, and the suction cup sucks the back of the paper. The driving component drives the suction cup to move until the bottom of the paper is separated from the transition guide plate, so that the paper slides along the slide plate to the designated area for stacking. The front side of the paper with ink printed on it will not be touched during the whole process, and there will be no puncturing when there is printing ink at any position on the printing surface of the paper.

[0028] 2. After the paper comes out of the printing press outlet, the back side is blown by the air nozzle, and can move to the receiving roller more smoothly. The top height of the receiving roller is set to increase the friction between the paper and the receiving roller, making the receiving roller more stable in conveying the paper. The blowing of the paper is also conducive to further drying of the ink.

[0029] 3. The blowing assembly above the transition guide plate can blow the paper directly onto the suction cup, making the suction cup more efficient in sucking the paper; it can also directly blow the bottom end of the paper away from the top of the transition guide plate, which can not only speed up the conveying speed, but also improve the work accuracy. Moreover, this blowing assembly can blow air directly on the front side of the paper, which is more conducive to the drying of the ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0031] Figure 2 Schematic diagram of the anti-scratching rolling conveying mechanism of an embodiment of the present application;

[0032] Figure 3 It is a cross-sectional view of the anti-scratching rolling conveying mechanism of an embodiment of the present application.

[0033] In the figure, 1, frame; 11, receiving groove; 12, driving cylinder; 13, load-bearing plate; 2, receiving roller; 3, arc-shaped guide plate; 31, mounting hole; 32, pulley; 4, transition roller; 5, transition guide plate; 6, slide plate; 7, suction cup; 8, driving assembly; 81, motor; 82, gear; 83, rack; 84, connecting plate; 85, slide rail; 9, blowing assembly; 91, air duct; 92, air nozzle. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-3 This application is described in further detail.

[0035] The embodiment of the present application discloses an anti-scratching rolling conveying mechanism.

[0036] refer to Figure 1 and Figure 2The anti-marking rolling conveying mechanism includes a frame 1 located at the discharge port of the printing press, a receiving roller 2 horizontally rotatably connected to the frame 1 and close to the discharge port of the printing press, an arc-shaped guide plate 3 obliquely fixed on the frame 1 and lower than the receiving roller 2, a transition roller 4 horizontally rotatably connected to the frame 1 and arranged close to the bottom end of the arc-shaped guide plate 3, and a transition guide plate 5 obliquely fixed on the frame 1 and with its bottom end close to the transition roller 4. The receiving roller 2, the arc-shaped guide plate 3, the transition roller 4 and the transition guide plate 5 are arranged in sequence from close to the printing press to away from the printing press.

[0037] refer to Figure 2 and Figure 3 A slide plate 6 which is inclined and arc-shaped is fixed on the frame 1, the top of the slide plate 6 is located on the side of the transition guide plate 5 away from the transition roller 4 and is higher than the top of the transition guide plate 5, and the bottom of the slide plate 6 is located below the transition roller 4; a suction cup 7 for sucking the back side of the paper slides between the top of the transition guide plate 5 and the top of the slide plate 6, in this embodiment, the suction cup 7 is a vacuum suction cup, and a driving component 8 for driving the suction cup 7 to move is provided on the slide plate 6.

[0038] After the paper comes out from the discharge port of the printing press, the receiving roller 2 applies a force to the back of the paper, so that the paper slides onto the arc guide plate 3 after passing through the receiving roller 2, and the transition roller 4 applies a force to the back of the paper again, so that the paper slides onto the transition guide plate 5 after passing through the transition roller 4. When one end of the paper is higher than the transition guide plate 5, the suction cup 7 sucks up the back of the paper, and the driving component 8 drives the suction cup 7 to slide toward the top of the slide plate 6 until the bottom end of the paper is separated from the transition guide plate 5. After the suction cup 7 releases the paper, the paper can be slid along the slide plate 6 to the frame 1 for stacking. The whole process will not contact the front side of the paper, which is also conducive to the drying of the ink. Therefore, when there is printing ink at any position on the printing surface of the paper, no marking will occur.

[0039] refer to Figure 2 and Figure 3 Two groups of blowing components 9 are installed on the frame 1. The blowing components 9 include an air duct 91 and a plurality of air nozzles 92. The air nozzles 92 of each group of blowing components 9 are arranged in a row, and each row of air nozzles 92 is connected to the same air duct 91, and the two air ducts 91 are connected to the same air pump; one group of blowing components 9 is located between the printing press discharge port and the receiving roller 2, and is tilted to blow air above the receiving roller 2, and the top height of the receiving roller 2 is not lower than the height of the lower surface of the printing press discharge port; the other group of blowing components 9 is located above the transition guide plate 5, and is tilted downward to blow air above the top of the transition guide plate 5.

[0040] The two groups of blowing components 9 blow air toward the back and front of the paper respectively, which is conducive to further drying of the ink; the blowing component 9 located on one side of the receiving roller 2 can move to the receiving roller 2 more smoothly; the blowing component 9 located above the transition guide plate 5 can directly blow the paper onto the suction cup 7, making the suction cup 7 more efficient in sucking the paper, and after the suction cup 7 drives the paper to rise, the bottom end of the paper can be directly and quickly blown away from the top of the transition guide plate 5, thereby improving work efficiency.

[0041] refer to Figure 2 A plurality of rows of mounting holes 31 are provided on the upper surface of the arc-shaped guide plate 3, and a pulley 32 parallel to each other is rotatably connected in each mounting hole 31. The rotation axis of the pulley 32 is horizontally arranged and perpendicular to the paper conveying direction. One end of the pulley 32 close to the upper surface of the arc-shaped guide plate 3 is flush with the upper surface of the arc-shaped guide plate 3. When the paper is conveyed onto the arc-shaped guide plate 3, the pulley 32 contacts with the back side of the paper and rotates, which can reduce the friction force received by the paper and improve the conveying stability.

[0042] refer to Figure 2 and Figure 3 The driving assembly 8 includes a motor 81 fixed horizontally on the top of the slide 6, a gear 82 coaxially fixed on the output shaft of the motor 81, an arc-shaped rack 83 meshing with the gear 82, an arc-shaped connecting plate 84 arranged obliquely, and a slide rail 85 installed between the top of the slide 6 and the back of the connecting plate 84. The rack 83 is fixed in the middle of the back of the connecting plate 84. The slide rail 85 is parallel to the rack 83, and there are two slide rails 85, which are respectively located on the opposite sides of the rack 83. There are multiple suction cups 7 arranged in a row. The suction cups 7 are all fixed at the bottom of the connecting plate 84, and the openings are inclined upward. The motor 81 drives the gear 82 to rotate, and the gear 82 drives the rack 83 to move, so that the connecting plate 84 moves along the slide rail 85, which improves the efficiency of the suction cup 7 driving the paper to move.

[0043] refer to Figure 2 and Figure 3 A receiving groove 11 is vertically provided on the frame 1 at a position below the arc-shaped guide plate 3. One side of the receiving groove 11 is connected to the bottom end of the slide plate 6. A driving cylinder 12 is vertically fixed in the receiving groove 11. In this embodiment, the driving cylinder 12 is a cylinder or a hydraulic cylinder. A load-bearing plate 13 is horizontally fixed to the top of the piston rod of the driving cylinder 12. After the paper slides down from the slide plate 6, it falls on the load-bearing plate 13. When the paper on the load-bearing plate 13 is stacked to a certain thickness, the driving cylinder 12 contracts to allow the load-bearing plate 13 to drive the paper to descend, so as to facilitate the automatic stacking of subsequent paper.

[0044] The implementation principle of the anti-marking rolling conveying mechanism of the embodiment of the present application is as follows: the printed paper is sent out from the discharge port of the printing press, the receiving roller 2 contacts the back of the paper, and cooperates with the paper's own gravity to send it to the arc guide plate 3, the paper relies on the friction force of the receiving roller 2 and its own inertia to slide onto the arc guide plate 3 and then continue to slide to the transition roller 4, the transition roller 4 then transports the paper to the transition guide plate 5, so that one end of the paper is tilted upward, the blowing component 9 blows the paper to the suction cup 7, at this time the suction cup 7 sucks the back of the paper, and the motor 81 is started to drive the gear 8 2 rotates, the gear 82 drives the rack 83 to move, so that the connecting plate 84 moves along the slide rail 85 until the bottom end of the paper is separated from the transition guide plate 5. At this time, the blowing assembly 9 blows the bottom of the paper to make the bottom end of the paper face downward toward the slide plate 6. The suction cup 7 releases the paper and the paper can slide along the slide plate 6 to the load-bearing plate 13 for stacking. The whole process will not touch the front side of the paper with ink printed on it, and it is beneficial to further dry the ink on the surface of the paper, so that the paper is not easy to scratch the ink when stacking. Finally, when there is printing ink at any position on the printing surface of the paper, no scratching phenomenon will occur.

[0045] The embodiment of the present application also discloses a printing device, including the anti-marking rolling conveying mechanism described in the above embodiment.

[0046] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An anti-scratching rolling conveying mechanism, characterized in that: The invention comprises a frame (1) located at the discharge port of a printing press, wherein a receiving roller (2) close to the discharge port of the printing press is rotatably connected to the frame (1); an arc-shaped guide plate (3) located on the side of the receiving roller (2) away from the printing press and lower than the receiving roller (2) is fixed to the frame (1); a transition roller (4) arranged close to the arc-shaped guide plate (3) is rotatably connected to the frame (1), and the transition roller (4) is located on the side of the arc-shaped guide plate (3) away from the receiving roller (2); and a transition roller (4) located on the side of the transition roller (4) away from the printing press is fixed to the frame (1). A transition guide plate (5) is arranged obliquely on one side of the arc-shaped guide plate (3), and the bottom end of the transition guide plate (5) is arranged close to the transition roller (4); a slide plate (6) is fixed on the frame (1), and the top end of the slide plate (6) is located on the side of the transition guide plate (5) away from the transition roller (4) and is higher than the top end of the transition guide plate (5); a suction cup (7) for sucking the back side of the paper is arranged between the top end of the transition guide plate (5) and the top end of the slide plate (6), and a driving component (8) for driving the suction cup (7) to move is arranged on the slide plate (6).

2. The anti-scratching rolling conveying mechanism according to claim 1 is characterized in that: The frame (1) is provided with a blowing assembly (9) located between the receiving roller (2) and the printing press outlet; the blowing assembly (9) comprises an air duct (91) and a plurality of air nozzles (92); all the air nozzles (92) are arranged in a row and are connected to the same air duct (91); the openings of the air nozzles (92) are arranged upward, and the top of the receiving roller (2) is not lower than the printing press outlet.

3. The anti-scratching rolling conveying mechanism according to claim 2 is characterized in that: The opening of the air nozzle (92) is arranged obliquely toward the receiving roller (2).

4. The anti-scratching rolling conveying mechanism according to claim 2 is characterized in that: The blowing assembly (9) is also arranged above the transition guide plate (5), and the opening of the air nozzle (92) in the blowing assembly (9) is arranged to be inclined downward toward the slide plate (6).

5. The anti-scratching rolling conveying mechanism according to claim 4 is characterized in that: The air ducts (91) in the two groups of blowing components (9) are connected to the same air pump.

6. The anti-scratching rolling conveying mechanism according to claim 1 is characterized in that: The driving assembly (8) comprises a motor (81), a gear (82), a rack (83), a connecting plate (84) and a slide rail (85), wherein the motor (81) is fixed on the top of the slide plate (6), the gear (82) is coaxially fixed on the output shaft of the motor (81), the connecting plate (84) is inclined and slidably connected to the upper part of the slide plate (6) through the slide rail (85), the rack (83) is fixed on the lower surface of the connecting plate (84) and meshes with the gear (82), and the rack (83) is parallel to the slide rail (85), and the suction cup (7) is installed at the bottom of the connecting plate (84).

7. The anti-scratching rolling conveying mechanism according to claim 6 is characterized in that: There are two slide rails (85), the rack (83) is located in the middle of the lower surface of the connecting plate (84), the two slide rails (85) are respectively located on both sides of the rack (83), and the slide rails (85) are parallel to the rack (83).

8. The anti-scratching rolling conveying mechanism according to claim 1 is characterized in that: A receiving groove (11) for receiving paper is provided on the frame (1) at the bottom of the slide plate (6), a driving cylinder (12) is fixed in the receiving groove (11), and a load-bearing plate (13) for bearing paper is fixed on the top of the driving cylinder (12).

9. The anti-scratching rolling conveying mechanism according to claim 1, characterized in that: The arc-shaped guide plate (3) is provided with a plurality of mounting holes (31), each mounting hole (31) is rotatably connected with a pulley (32), and the top end of the pulley (32) is flush with the upper surface of the arc-shaped guide plate (3).

10. A printing device, characterized in that: It comprises the anti-scratching rolling conveying mechanism as described in any one of claims 1-9.

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