Recovery printing roller surface chromium removal device

Abstract

The utility model discloses a recycling printing roller surface chromium removing device which comprises a bottom table and a U-shaped seat fixed on one side of the top end of the bottom table, a guide column is fixed in the U-shaped seat, a vertical plate is installed on the surface of the guide column in a sliding mode, and a long beam plate is fixed on the outer wall of the side, away from the vertical plate, of the U-shaped seat. An elastic piece is fixed to the outer wall of the side, opposite to the vertical plate, of the long beam plate, a cam pushing unit used for forcing the vertical plate to be away from the long beam plate is arranged at the top end of the bottom table, a rotating shaft is rotationally installed on the outer wall of one side of the vertical plate, and one end of the rotating shaft penetrates out of the vertical plate and is provided with a four-jaw chuck used for clamping a printing roller. Reciprocating translation and intermittent forward and reverse rotation movement of the printing roller are achieved, cleaning liquid can cover the whole surface of the printing roller more evenly, it is guaranteed that the cleaning effect is more thorough, the scrubbing action can be completed only by simply moving the scrubbing piece by workers, the fatigue degree of the workers is reduced, and the working efficiency is improved. And the continuity and the stability of the production process are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of printing roller processing, in particular to a device for removing chromium from the surface of a recycling printing roller. Background Art

[0002] The chromium layer on the surface of the gravure roller will quickly corrode if it encounters corrosive liquids, gases, or unqualified solvents such as acids and alkalis. This corrosion will form small spots on the plate surface, which will be transferred to the printed material during printing. This phenomenon is more likely to occur in a humid environment because the moisture in the air can easily absorb acidic or alkaline gases, and the air is in constant contact with the roller surface. Once the chromium layer is corroded, if it is not promptly de-chromed and re-plated, it is likely to corrode the copper layer in a short time, causing the roller to be scrapped. Therefore, it is very important to maintain the gravure roller. Timely inspection and repair of the corrosion problem of the chrome layer can extend the service life of the roller. One step of removing chrome from the surface of the printing roller is to wipe the surface of the chrome roller with a chrome roller cleaner. The chrome roller cleaner can quickly degrease the chrome roller and neutralize the oxides on the chrome roller. However, in this process, the staff needs to use a rag or sponge to dip an appropriate amount of chrome roller cleaner on the surface of the chrome roller for multiple operations. The staff needs to frequently change the scrubbing position, scrub back and forth, etc. Due to the limitations of manual operation, it is difficult to thoroughly clean every corner during the cleaning process, especially in the tiny depressions on the surface of the gravure roller. The cleaning effect is difficult to guarantee, and dirt or residue may be left. In addition, the long-term repeated scrubbing operation in the process can easily lead to hand fatigue or injury, and the work intensity is high. Utility Model Content

[0003] The purpose of the utility model is to provide a device for recycling and removing chrome from the surface of a printing roller, which uses a four-claw chuck to clamp the printing roller to be cleaned, and realizes the reciprocating translational motion and intermittent forward and reverse rotational motion of the printing roller through structures such as a cam pushing unit and a rotating shaft, so as to solve the problems raised in the above-mentioned background technology.

[0004] The cam is fixed on the outer wall of the U-shaped seat, and an elastic member is fixed on the outer wall of the side opposite to the vertical plate. A cam pushing unit is provided on the top of the base for forcing the vertical plate to move away from the long beam plate. A rotating shaft is rotatably installed on the outer wall of one side of the vertical plate, one end of the rotating shaft passes through the outside of the vertical plate and is installed with a four-claw chuck for clamping the printing roller. A support arm is integrally formed on one side of the top of the long beam plate, and a gear rack transmission structure is provided on the back of the support arm. A bevel gear right-angle rotation structure for power connection is provided between the rotating shaft and the gear rack transmission structure. A PLC control panel is installed on one side of the base surface, and the output end of the PLC control panel is electrically connected to the input end of the cam pushing unit.

[0005] Preferably, a roller support is fixed to one side of the top end of the base, and a triangular groove is provided on the upper surface of the roller support.

[0006] Preferably, the cam pushing unit includes a stepper motor installed on the top of the base, and a main shaft installed at the output end of the stepper motor through a coupling, and a cam unit is installed on the top end of the main shaft.

[0007] Preferably, two other rotating shafts are installed on the outer wall of one side of the vertical plate, and a pulley transmission structure for power connection is installed between the three rotating shafts.

[0008] Preferably, the bevel gear right-angle rotation structure includes a convex plate fixed on the outer wall of one side of the vertical plate, and a vertical shaft rotatably installed on the top of the convex plate. The opposite ends of the vertical shaft and the rotating shaft are both equipped with bevel gears, and the two bevel gears are meshed with each other.

[0009] Preferably, the rack and gear transmission structure includes a rack fixed on the back of the support arm, and a gear plate fixed on one end of the vertical shaft surface. The gear plate and the rack are engaged with each other, and a rectangular hollow groove for the rack to pass through is provided on the outer wall of one side of the vertical plate.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the device for recycling and removing chromium from the surface of a printing roller is equipped with structures that cooperate with each other, such as a four-claw chuck and a bevel gear right-angle rotation structure, to achieve reciprocating translation and intermittent forward and reverse rotation of the printing roller, so that the cleaning liquid can cover the entire surface of the printing roller more evenly, ensuring a more thorough cleaning effect, and the staff only needs to simply move the scrubbing piece to complete the scrubbing action, reducing the staff's fatigue and ensuring the continuity and stability of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 This is a side structural diagram of the present utility model;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0015] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model Figure 3 ;

[0016] In the figure: 1. Base; 101. Roller support; 102. Triangular groove; 2. U-shaped seat; 3. Long beam plate; 4. Guide column; 5. Vertical plate; 501. Convex plate; 6. Cam push unit; 7. Elastic member; 8. Rotating shaft; 9. Pulley transmission structure; 10. Four-jaw chuck; 11. Support arm; 12. Gear rack transmission structure; 13. Bevel gear right-angle rotation structure; 14. PLC control panel. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-5 The utility model provides an embodiment of a device for recycling and removing chrome from the surface of a printing roller, comprising a base 1 and a U-shaped seat 2 fixed to one side of the top of the base 1, a guide column 4 fixed inside the U-shaped seat 2, a vertical plate 5 slidably mounted on the surface of the guide column 4, a long beam plate 3 fixed on the outer wall of the U-shaped seat 2 away from the vertical plate 5, an elastic member 7 fixed on the outer wall of the side opposite to the long beam plate 3 and the vertical plate 5, a cam pushing unit 6 for forcing the vertical plate 5 away from the long beam plate 3 is provided on the top of the base 1, and in the process of the vertical plate 5 being reciprocally pushed by the cam pushing unit 6, the elastic member 7 provides power for the vertical plate 5 to reset, and a coil spring can be used;

[0019] A rotating shaft 8 is rotatably mounted on the outer wall of one side of the vertical plate 5. One end of the rotating shaft 8 passes through the outside of the vertical plate 5 and is installed with a four-jaw chuck 10 for clamping the printing roller. A support arm 11 is integrally formed on one side of the top of the long beam plate 3. A gear rack transmission structure 12 is provided on the back of the support arm 11. A bevel gear right-angle rotation structure 13 for power connection is provided between the rotating shaft 8 and the gear rack transmission structure 12. A PLC control panel 14 is installed on one side of the surface of the base 1. The output end of the PLC control panel 14 is electrically connected to the input end of the cam push unit 6.

[0020] A roller support 101 is fixed to one side of the top of the base 1, and a triangular groove 102 is provided on the upper surface of the roller support 101. When the end of the printing roller is clamped by the four-jaw chuck 10, the other end of the printing roller can be placed on the upper surface of the roller support 101. At this time, the roller support 101 supports the printing roller through the triangular groove 102, so that when the printing roller is driven to move back and forth, the entire roller body can be more stable.

[0021] The cam pushing unit 6 includes a stepper motor mounted on the top of the base 1, and a main shaft mounted on the output end of the stepper motor through a coupling, and a cam unit is mounted on the top end of the main shaft;

[0022] The bevel gear right-angle rotation structure 13 includes a protruding plate 501 fixed to the outer wall of one side of the vertical plate 5, and a vertical shaft rotatably mounted on the top of the protruding plate 501. The opposite ends of the vertical shaft and the rotating shaft 8 are both equipped with bevel gears, and the two bevel gears are meshed with each other. The gear rack transmission structure 12 includes a rack fixed to the back of the support arm 11, and a gear plate fixed to one end of the vertical shaft surface. The gear plate and the rack are meshed with each other. A rectangular hollow groove for the rack to pass through is provided on the outer wall of one side of the vertical plate 5;

[0023] When the rotating shaft 8 is driven to rotate, the vertical shaft at the top of the convex plate 501 transmits the rotational force to the rotating shaft 8 through the bevel gear, and the gear on the vertical shaft meshes with the rack on the back of the support arm 11. Therefore, when the vertical plate 5, the convex plate 501 and the vertical shaft move, the rack forces the gear plate to rotate, thereby realizing the intermittent forward and reverse rotation of the rotating shaft 8, the four-jaw chuck 10 and the printing roller.

[0024] In this structural design, only one motor in the cam push unit 6 is used to control the operation, which can achieve continuous and uninterrupted cleaning operation without being affected by the fatigue level of the staff or other factors, ensuring the continuity and stability of the production process. In addition, the structure is simple, and the construction cost and use cost are relatively low.

[0025] Two other rotating shafts 8 are installed on the outer wall of one side of the vertical plate 5, and a pulley transmission structure 9 for power connection is installed between the three rotating shafts 8. The rotational power of one rotating shaft 8 can be transmitted to the remaining rotating shafts 8 through the pulley transmission structure 9, thereby realizing the synchronous action function of multiple printing roller stations. Compared with cleaning a single station in sequence, the synchronous action can maximize the use of the idle time in the cleaning process and reduce the downtime of the production line.

[0026] When the embodiment of the present application is in use, the staff first clamps the printing roller to be cleaned and de-chromed with the four-claw chuck 10, and evenly sprays the chrome roller cleaning agent on the surface of the printing roller. Then the staff turns on the cam pushing unit 6 through the PLC control panel 14 to work, and the cam pushing unit 6 continuously pushes the vertical plate 5 to perform horizontal reciprocating motion. During this process, the elastic member 7 resets the vertical plate 5, and the guide column 4 improves the sliding stability of the vertical plate 5, thereby realizing the reciprocating translational motion of the printing roller. When the staff presses a soft cloth, sponge or other scrubbing member on the surface of the printing roller, the reciprocating translational motion of the printing roller can simulate the staff's scrubbing action. During the horizontal reciprocating motion of the vertical plate 5, the rotating shaft 8 rotates at right angles through the bevel gear. The rotating structure 13 is powered, and the bevel gear right-angle rotating structure 13 is connected to the rack and pinion transmission structure 12. The rack and pinion transmission structure 12 forces the bevel gear right-angle rotating structure 13 and the rotating shaft 8 to rotate, thereby realizing the reciprocating forward and reverse intermittent rotation action of the rotating shaft 8. When the scrubbing point of the staff remains unchanged, the reciprocating forward and reverse intermittent rotation action of the four-claw chuck 10 is used to change the cleaning point. The device realizes the reciprocating translation and intermittent forward and reverse rotation movement of the printing roller, so that the cleaning liquid can cover the entire printing roller surface more evenly, ensuring a more thorough cleaning effect. The staff only needs to simply move the scrubbing piece to complete the scrubbing action, reducing the fatigue of the staff and ensuring the continuity and stability of the production process.

Claims

1. A device for removing chromium from the surface of a recycled printing roller, characterized in that: The invention comprises a base (1) and a U-shaped seat (2) fixed on one side of the top of the base (1); a guide column (4) is fixed inside the U-shaped seat (2); a vertical plate (5) is slidably mounted on the surface of the guide column (4); a long beam plate (3) is fixed on the outer wall of the U-shaped seat (2) away from the vertical plate (5); an elastic member (7) is fixed on the outer wall of the side opposite to the long beam plate (3) and the vertical plate (5); a cam pushing unit (6) for forcing the vertical plate (5) away from the long beam plate (3) is provided on the top of the base (1); a rotating shaft (8) is rotatably mounted on the outer wall of one side of the vertical plate (5); One end of the shaft (8) passes through the outside of the vertical plate (5) and is installed with a four-claw chuck (10) for clamping the printing roller. A support arm (11) is integrally formed on one side of the top of the long beam plate (3). A gear rack transmission structure (12) is provided on the back of the support arm (11). A bevel gear right-angle rotation structure (13) for power connection is provided between the rotating shaft (8) and the gear rack transmission structure (12). A PLC control panel (14) is installed on one side of the surface of the base (1). The output end of the PLC control panel (14) is electrically connected to the input end of the cam push unit (6).

2. The device for removing chromium from the surface of a recycled printing roller according to claim 1, characterized in that: A roller support (101) is fixed to one side of the top end of the base (1), and a triangular groove (102) is provided on the upper surface of the roller support (101).

3. The device for removing chromium from the surface of a recycled printing roller according to claim 1, characterized in that: The cam pushing unit (6) comprises a stepper motor mounted on the top of the base (1), and a main shaft mounted on the output end of the stepper motor via a coupling, with a cam unit mounted on the top end of the main shaft.

4. The device for removing chromium from the surface of a recycled printing roller according to claim 1, characterized in that: Two other rotating shafts (8) are installed on one side outer wall of the vertical plate (5), and a pulley transmission structure (9) for power connection is installed between the three rotating shafts (8).

5. The device for removing chromium from the surface of a recycled printing roller according to claim 1, characterized in that: The bevel gear right-angle rotation structure (13) comprises a convex plate (501) fixed on the outer wall of one side of the vertical plate (5), and a vertical shaft rotatably mounted on the top of the convex plate (501), and bevel gears are mounted on the opposite ends of the vertical shaft and the rotating shaft (8), and the two bevel gears are meshed with each other.

6. The device for removing chromium from the surface of a recycled printing roller according to claim 5, characterized in that: The rack and gear transmission structure (12) includes a rack fixed on the back of the support arm (11) and a gear plate fixed on one end of the vertical shaft surface. The gear plate and the rack are meshed with each other. A rectangular hollow groove for the rack to pass through is provided on the outer wall of one side of the vertical plate (5).

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