An ink storage device for a printing press

Abstract

The present application relates to the technical field of printing machine, and discloses an ink storage device of a printing machine, which comprises a printing frame and an ink storage box, the printing frame is provided with a rotatable ink roller, the ink storage box is located below the ink roller, the printing frame is provided with a lifting assembly for driving the ink storage box to move vertically, the upper end of the lifting assembly is fixed with a rotating seat, the lower side of the ink storage box is fixed with a rotating block, and the rotating block is rotationally connected with the rotating seat, the lifting assembly is fixed with a resisting assembly for pushing the ink storage box to deflect, one side of the ink storage box is provided with a movable strip, the distance between the ink storage box and the ink roller can be flexibly adjusted, sufficient operation space is reserved, workers can scrape and clean the ink on the bottom surface of the ink storage box and the ink roller, and the cleaning dead angle of the ink is reduced.

Description

Technical Field

[0001] This invention relates to the field of printing press technology, specifically to an ink storage device for a printing press. Background Technology

[0002] The ink storage device of a printing press is centered around the ink fountain, which is mainly used to store the gel-like ink required for printing and to provide a stable ink-dipping station for the ink fountain roller. During operation, the ink fountain roller rotates to pick up the ink in the fountain, and then it is transferred to the letterpress printing plate through various ink-spreading rollers to complete the inking process. After the printing operation is completed, the remaining ink in the ink fountain needs to be recycled. During the recycling process, the ink on the surface of the ink fountain roller and in the ink fountain needs to be cleaned with a scraper to reduce material loss and prevent contamination of the next color ink.

[0003] The ink fountain troughs of existing traditional letterpress printing presses are mostly fixed structures, attached to the frame, and are usually open troughs without lifting or adjustment functions. Their height and relative position to the ink fountain roller are fixed at the factory and cannot be adjusted up or down during use. The amount of ink can only be controlled by the gap between the ink fountain rollers. This results in a small distance between the ink fountain roller and the bottom of the ink fountain trough, which easily creates cleaning dead corners during the recycling process. This not only affects recycling efficiency but also the quality of subsequent printing. Summary of the Invention

[0004] This invention provides an ink storage device for a printing press, which features an adjustable gap between the ink storage box and the ink sticking roller, providing ample operating space for workers to scrape and clean the ink on the bottom surface of the ink storage box and the ink sticking roller, reducing cleaning dead zones. The ink storage box can be tilted, allowing residual ink to collect around the ink discharge port under gravity, thus improving ink recovery efficiency and quality. This invention solves the problem mentioned in the background art where the small gap between the ink fountain roller and the bottom of the ink fountain groove easily creates cleaning dead zones during the recovery process, affecting not only recovery efficiency but also subsequent printing quality.

[0005] The present invention provides the following technical solution: an ink storage device for a printing press, comprising a printing press frame and an ink storage box, wherein a rotatable ink-adhesive roller is provided on the printing press frame, the ink storage box is located below the ink-adhesive roller, a lifting assembly is provided on the printing press frame to drive the ink storage box to move vertically, a rotating seat is fixed at the upper end of the lifting assembly, a rotating block is fixed at the lower end of the ink storage box, and the rotating block is rotatably connected to the rotating seat; The lifting assembly is fixed with an abutment component that pushes the ink storage box to deflect, and a movable strip is provided on one side of the ink storage box.

[0006] As an optional embodiment of the ink storage device for the printing press of the present invention, wherein: an ink inlet and an ink outlet are respectively provided on the inclined surfaces at both ends of the ink storage box; a moving track plate is respectively provided on both ends of the printing press frame; a cylinder is fixed at both ends of the ink storage box; one end of the cylinder is inserted into the moving track plate; and a torsion spring is directly connected to the rotating block and the rotating seat.

[0007] As an optional embodiment of the ink storage device for the printing press of the present invention, the moving track plate is provided with a straight groove and an arc groove, and the straight groove and the arc groove are connected.

[0008] As an optional embodiment of the ink storage device for the printing press of the present invention, the lifting assembly includes a servo cylinder, the piston rod of the servo cylinder is fixedly connected to the rotating seat, and the lower end of the servo cylinder is connected to a mounting plate, which is fixed on the printing press frame.

[0009] As an optional embodiment of the ink storage device for the printing press of the present invention, the abutment component includes a mounting block, the mounting block is fixed on the servo cylinder, and an abutment rod is fixed on the mounting block, the upper end face of the abutment rod having an arc surface.

[0010] As an optional embodiment of the ink storage device for the printing press of the present invention, wherein: a guide block is fixed on the upper part of the ink storage box, an abutment frame is provided on one side of the guide block, guide rods are fixed at both ends of the abutment frame, and the guide rods are slidably connected to the guide block.

[0011] As an optional embodiment of the ink storage device for the printing press of the present invention, the strip is slidably connected to one side of the ink storage box, and a spring is connected between the strip and the ink storage box, with the lower end of the strip abutting against the abutment frame.

[0012] As an optional embodiment of the ink storage device for the printing press of the present invention, a baffle is provided on one side of the ink discharge port, and the baffle is fixed on one side of the ink storage box.

[0013] The present invention has the following beneficial effects: 1. In the ink storage device of this printing press, the ink storage box can be moved up and down along the printing press frame by the lifting component. The distance between the ink storage box and the ink sticking roller can be flexibly adjusted. When the ink needs to be cleaned after the printing work is completed, the ink storage box can be controlled to move down and away from the ink sticking roller. Sufficient operating space can be reserved so that workers can scrape and clean the ink on the bottom surface of the ink storage box and the ink sticking roller, reducing the dead corners of ink cleaning, reducing material loss, and avoiding residual ink affecting the quality of the next product printing. At the end of the product printing process, the ink supply equipment can be stopped from injecting ink into the ink inlet. By adjusting the upward height of the ink storage box, the distance between its bottom surface and the ink sticking roller can be further reduced, so that the remaining ink in the ink storage box is consumed by the ink sticking roller. This can reduce the amount of ink recovered after the printing operation is completed, and also reduce the area and time of ink contact with air, reduce the risk of pollution, and ensure the performance of ink and printing quality.

[0014] 2. In the ink storage device of this printing press, when the ink storage box moves vertically to the set height, the abutment rod in the abutment component can abut against the inclined surface below the ink storage box. With the cooperation of the rotating block, the ink storage box as a whole is deflected on the rotating seat so that when the ink is recycled and cleaned, the ink storage box on the side of the ink outlet tilts downward, so that the remaining ink is collected around the ink outlet under the action of gravity. This can prevent the ink in the uncleaned area from contaminating the cleaned area, and can improve the ink recycling efficiency and quality. When the cylinder on the ink storage box moves in the straight groove of the moving trajectory plate, it improves the stability of the vertical movement of the ink storage box. When the cylinder slides in the arc groove, it can limit the deflection angle of the ink storage box and improve the stability of the deflection. When the ink storage box deflects, it can drive the strip to move synchronously, bringing it closer to the ink-sticking roller. At the same time, the abutment rod abuts against the abutment frame, allowing the strip to move along the ink storage box and press against the surface of the ink-sticking roller. When the ink-sticking roller rotates, the strip can quickly scrape and clean the ink on the ink-sticking roller, speeding up the ink recovery speed, reducing the time that the ink is in contact with air, delaying the oxidation reaction, and improving the quality of recovery. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the ink storage box and ink roller structure of the present invention.

[0017] Figure 3 This is a schematic diagram of the lifting assembly and moving track plate structure of the present invention.

[0018] Figure 4 This is a cross-sectional view of the ink storage box structure of the present invention.

[0019] Figure 5 This is a schematic diagram of the contact frame and structure of the present invention.

[0020] Figure 6 for Figure 3 Enlarged view of point A in the middle.

[0021] Figure 7 This is a schematic diagram of the contact frame structure of the present invention.

[0022] In the diagram: 1. Printing press frame; 2. Ink storage box; 3. Ink roller; 4. Lifting assembly; 41. Servo cylinder; 42. Mounting plate; 5. Stop bar; 6. Rotating seat; 7. Rotating block; 8. Contact assembly; 81. Mounting block; 82. Contact rod; 9. Strip plate; 10. Ink inlet; 11. Ink outlet; 12. Moving track plate; 121. Straight groove; 122. Arc groove; 13. Cylinder; 14. Torsion spring; 15. Guide block; 16. Contact frame; 17. Guide rod; 18. Spring. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1, please refer to Figures 1 to 7 An ink storage device for a printing press includes a printing press frame 1 and an ink storage box 2. A rotatable ink-adhesive roller 3 is provided on the printing press frame 1, and the ink storage box 2 is located below the ink-adhesive roller 3. A lifting assembly 4 is provided on the printing press frame 1 to drive the ink storage box 2 to move vertically. A rotating seat 6 is fixed at the upper end of the lifting assembly 4, and a rotating block 7 is fixed at the lower end of the ink storage box 2. The rotating block 7 is rotatably connected to the rotating seat 6. The lifting assembly 4 is fixed with a resisting assembly 8 that pushes the ink storage box 2 to deflect. A movable strip 9 is provided on one side of the ink storage box 2.

[0025] Ink storage box 2 has an ink inlet 10 and an ink outlet 11 on its two inclined surfaces. The printing frame 1 has a moving track plate 12 on its two ends. The ink storage box 2 has a cylinder 13 fixed on its two ends. One end of the cylinder 13 is inserted into the moving track plate 12. The rotating block 7 is directly connected to the rotating seat 6 by a torsion spring 14.

[0026] The moving track plate 12 is provided with a straight groove 121 and an arc groove 122, which are connected to each other.

[0027] The lifting assembly 4 includes a servo electric cylinder 41, the piston rod of which is fixedly connected to the rotating seat 6, and the lower end of the servo electric cylinder 41 is connected to a mounting plate 42, which is fixed on the printing machine frame 1.

[0028] The contact component 8 includes a mounting block 81, which is fixed on the servo electric cylinder 41, and a contact rod 82 is fixed on the mounting block 81. The upper end face of the contact rod 82 is provided with an arc surface.

[0029] A baffle 5 is provided on one side of the ink outlet 11, and the baffle 5 is fixed on one side of the ink storage box 2.

[0030] In this technical solution, reference is made to Figures 1 to 6 The ink storage box 2 is initially in a horizontal position. It is connected to the ink inlet 10 through the ink delivery equipment, which delivers ink into the ink storage box 2. The ink storage box 2 is equipped with a liquid level sensor to detect the ink level. When the ink is injected to the preset height, the ink delivery equipment stops delivering ink. During the printing and dyeing process, when the ink level is low, the ink delivery equipment automatically replenishes the ink. By adjusting the extension length of the piston rod of the servo cylinder 41 in the lifting assembly 4, the rotating seat 6 and the ink storage box 2 are driven to move upward. At the same time, the cylinder 13 moves upward synchronously along the straight groove 121 of the moving trajectory plate 12, so that the ink storage box 2 is vertically level. The ink roller 3 on the printing press frame 1 is steadily raised until it can contact the ink in the ink storage box 2 for printing. When the printing press is in the later stage of operation and the printing volume is reduced, the remaining ink in the ink storage box 2 is sufficient for the printing of the product to be printed. The ink supply equipment can be stopped from injecting ink into the ink inlet 10. During the printing process, the height of the ink storage box 2 is gradually adjusted to gradually shorten the distance between the bottom surface of the ink storage box 2 and the ink roller 3, so as to consume the remaining ink in the ink storage box 2, thereby reducing the amount of ink recovered, reducing the risk of ink contact with air and being contaminated by dust, and improving the quality of use. After printing, when cleaning the residual ink in the ink storage box 2, the piston rod of the servo cylinder 41 retracts, causing the ink storage box 2 to move downwards. The cylinder 13 moves downwards along the straight groove 121 of the moving track plate 12, leaving sufficient operating space for workers to scrape and clean the ink on the bottom surface of the ink storage box 2 and the surface of the ink roller 3. As the ink storage box 2 continues to move downwards, the abutment rod 82 on the mounting block 81 abuts against the inclined side of the ink storage box 2, causing the ink storage box 2 to move downwards and deflect. The rotating block 7 rotates... When the base 6 rotates, the torsion spring 14 stores power, and the ink storage box 2 on one side of the ink discharge port 11 tilts downward, so that the remaining ink is collected around the ink discharge port 11 under the action of gravity and recycled through the ink discharge port 11, which can improve the recycling efficiency. At the same time, a baffle 5 is provided on one side of the ink discharge port 11 to limit the flow range of ink when the ink storage box 2 is deflected, reducing the risk of spillage. Meanwhile, the cylinder 13 slides along the arc groove 122 of the moving track plate 12 to limit the deflection angle and prevent the ink storage box 2 from deflecting too much.

[0031] Example 2 is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 1 to 7 A guide block 15 is fixed on the top of the ink storage box 2. A contact frame 16 is provided on one side of the guide block 15. Guide rods 17 are fixed at both ends of the contact frame 16. The guide rods 17 are slidably connected to the guide block 15.

[0032] The strip 9 is slidably connected to one side of the ink storage box 2, and a spring 18 is connected between the strip 9 and the ink storage box 2. The lower end of the strip 9 abuts against the contact frame 16.

[0033] In this technical solution, reference is made to Figures 1 to 7 To further improve ink recovery efficiency, when the ink storage box 2 is deflected, one side tilts downward and the other side tilts upward, causing the strip 9 to approach the ink-sticking roller 3. When the contact rod 82 contacts the tilted side of the ink storage box 2, the contact rod 82 will simultaneously contact the contact frame 16, thereby pushing the contact frame 16 to move along the tilted side of the ink storage box 2 and then contact the strip 9, causing the strip 9 to slide on the ink storage box 2 so as to press against the surface of the ink-sticking roller 3. When the ink-sticking roller 3 is in the rotating cleaning state, the strip 9 quickly scrapes off the ink attached to the ink-sticking roller 3, so that the ink flows along the strip 9 into the tilted ink storage box 2, which accelerates the ink recovery speed, reduces the contact time between the ink and air, delays the oxidation reaction, and improves the quality of recovery.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An ink storage device for a printing press, comprising a printing press frame (1) and an ink storage box (2), characterized in that: The printing frame (1) is provided with a rotatable ink roller (3), the ink storage box (2) is located below the ink roller (3), the printing frame (1) is provided with a lifting assembly (4) that drives the ink storage box (2) to move vertically, the upper end of the lifting assembly (4) is fixed with a rotating seat (6), and the lower part of the ink storage box (2) is fixed with a rotating block (7), the rotating block (7) is rotatably connected to the rotating seat (6); The lifting assembly (4) is fixed with an abutment assembly (8) that pushes the ink storage box (2) to deflect, and a movable strip (9) is provided on one side of the ink storage box (2).

2. The ink storage device for a printing press according to claim 1, characterized in that: The ink storage box (2) has an ink inlet (10) and an ink outlet (11) respectively on its two inclined surfaces. The printing frame (1) has a moving track plate (12) on each end. The ink storage box (2) has a cylinder (13) fixed at each end. One end of the cylinder (13) is inserted into the moving track plate (12). The rotating block (7) is directly connected to the rotating seat (6) by a torsion spring (14).

3. The ink storage device for a printing press according to claim 2, characterized in that: The moving track plate (12) is provided with a straight groove (121) and an arc groove (122), and the straight groove (121) and the arc groove (122) are connected.

4. The ink storage device for a printing press according to claim 1, characterized in that: The lifting assembly (4) includes a servo electric cylinder (41), the piston rod of the servo electric cylinder (41) is fixedly connected to the rotating seat (6), and the lower end of the servo electric cylinder (41) is connected to a mounting plate (42), which is fixed on the printing frame (1).

5. The ink storage device for a printing press according to claim 4, characterized in that: The abutment component (8) includes a mounting block (81), which is fixed on the servo electric cylinder (41), and an abutment rod (82) is fixed on the mounting block (81). The upper end face of the abutment rod (82) is provided with an arc surface.

6. The ink storage device for a printing press according to claim 5, characterized in that: A guide block (15) is fixed on the upper part of the ink storage box (2). A contact frame (16) is provided on one side of the guide block (15). Guide rods (17) are fixed at both ends of the contact frame (16). The guide rods (17) are slidably connected to the guide block (15).

7. The ink storage device for a printing press according to claim 6, characterized in that: The strip (9) is slidably connected to one side of the ink storage box (2), and a spring (18) is connected between the strip (9) and the ink storage box (2), with the lower end of the strip (9) abutting against the abutment frame (16).

8. The ink storage device for a printing press according to claim 2, characterized in that: A baffle (5) is provided on one side of the ink outlet (11), and the baffle (5) is fixed on one side of the ink storage box (3).

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