Printing roller cleaning device for a printing press

Abstract

The utility model discloses a printing roller cleaning device for printing machine, including double -deck trapezoidal frame, double -deck trapezoidal frame top fixed cleaning tank, the rotation of the main shaft of installing of cleaning tank top one side edge position department and the front four claws chuck of main shaft one end fixed, the reduction motor for driving the rotation of main shaft is installed on the one side outer wall of cleaning tank, the other side edge position of cleaning tank top is installed with the slip type roll end auxiliary support structure. The utility model utilizes the reduction motor to drive the main shaft, the front four claws chuck and the printing roller rotation, and the series ring channel spray washing structure surrounds the printing roller and continuously sprays the cleaning fluid in the rotation process, to realize all -round, multi -angle spray washing to printing roller.

Description

Technical Field

[0001] This utility model relates to the field of printing roller cleaning technology, specifically to a printing roller cleaning device for printing presses. Background Technology

[0002] Printing roller cleaning devices ensure stable printing quality and improved production efficiency by maintaining the cleanliness of the printing roller surface. Their structure typically includes a cleaning solution supply system, cleaning rollers or brushes, a cleaning solution recovery system, and a control system. The cleaning solution supply system evenly sprays a specialized cleaning solution onto the printing roller surface to soften ink residue; the cleaning rollers or brushes mechanically remove adhering ink and impurities; the recovery system collects used cleaning solution, filters it, and recycles it, reducing resource waste; the control system automates the cleaning process, including spray volume, time, and mechanical actions. The entire cleaning process includes steps such as spraying cleaning solution, mechanical ink removal, filtration, and drying, ensuring that ink and impurities are thoroughly removed, leaving the printing roller surface clean and tidy. The frequency and method of cleaning should be adjusted according to the ink type, material, and equipment characteristics to achieve the best results. For example, the printing roller cleaning device for a printing press disclosed in authorization announcement number CN220280922U includes a housing, a liquid storage tank, a cleaning tank, a printing roller, and a heater. The liquid storage tank, cleaning tank, printing roller, and heater are all located inside the housing, and both ends of the printing roller are connected to the housing. The printing roller can rotate relative to the housing. The heater is positioned near the bottom of the printing roller, and one end of the heater is fixedly connected to the housing. The cleaning tank is located on one side of the printing roller. A spray pipe and a recovery pipe are connected between the cleaning tank and the liquid storage tank, respectively. One side of the printing roller is embedded in the cleaning tank, which contains a brush. The above-mentioned design places both the liquid storage tank and the cleaning tank inside the machine housing. The cleaning liquid in the liquid storage tank rinses the printing roller, while the brush in the cleaning tank cleans the printing roller, thus cleaning the ink stains attached to the printing roller. However, in the process of using the above-mentioned technical solution, the nozzles are often arranged along a certain path or area, making it difficult to achieve all-round coverage of the entire printing roller surface. Moreover, due to the complex structure of the printing roller, there are uneven surfaces, seams, and edge areas. A single or limited number of nozzles cannot evenly spray the cleaning liquid to all corners. Especially on the inner side or edge area of ​​the printing roller, the spray angle and distance of the nozzles may be insufficient, resulting in the cleaning liquid being unable to reach and the effect being weakened. Utility Model Content

[0003] The purpose of this invention is to provide a printing roller cleaning device for printing presses. The disassembled printing roller to be cleaned is fixed between a front four-jaw chuck and a sliding roller end auxiliary support structure. A geared motor drives the main shaft, the front four-jaw chuck, and the printing roller to rotate. During the rotation, a series-connected ring spray cleaning structure surrounds the printing roller and continuously sprays cleaning liquid to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a printing roller cleaning device for a printing press, comprising a double-layer trapezoidal frame, a cleaning box fixed at the top of the double-layer trapezoidal frame, a main shaft rotatably mounted at one edge of the top of the cleaning box, and a front four-jaw chuck fixed at one end of the main shaft. A reduction motor for driving the rotation of the main shaft is installed on one outer wall of the cleaning box, and a sliding roller end auxiliary support structure is installed at the other edge of the top of the cleaning box. The printing roller to be cleaned is clamped between the front four-jaw chuck and the sliding roller end auxiliary support structure. A series annular spray cleaning structure coaxial with the front four-jaw chuck is installed inside the cleaning box, and a motor controller electrically connected to the input end of the reduction motor is installed on one outer wall of the cleaning box.

[0005] Preferably, an upper cover is hinged to one side of the top of the cleaning tank.

[0006] Preferably, the sliding roller end auxiliary support structure includes a vertical bearing seat installed at one edge of the top of the cleaning tank, an internal spline shaft rotatably installed inside the vertical bearing seat, and an external spline shaft slidably installed inside the internal spline shaft. A rear four-jaw chuck is fixed at one end of the external spline shaft near the main shaft. The external spline shaft and the main shaft are coaxial.

[0007] Preferably, the bottom of the cleaning tank is integrally formed with a sloping drainage channel, and a drainage pipe is installed on one side of the outer wall of the sloping drainage channel, with a switch valve installed at the bottom of the drainage pipe.

[0008] Preferably, the series-connected ring spray washing structure includes multiple annular liquid storage pipes installed in a straight, equally spaced array inside the cleaning tank, and a connecting pipe installed between two adjacent annular liquid storage pipes. Several nozzles are installed at equal intervals on the inner wall of the annular liquid storage pipes, and a straight inlet pipe extending to the outside of the cleaning tank is installed on one side of the outer wall of one of the annular liquid storage pipes.

[0009] Preferably, the cleaning tank and the upper cover are both made of stainless steel.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This printing roller cleaning device for printing presses uses a structure that integrates a cleaning box, a geared motor, a main shaft, a front four-jaw chuck, a sliding roller end auxiliary support structure, and a series-type annular spray cleaning structure. The disassembled printing roller to be cleaned is fixed between the front four-jaw chuck and the sliding roller end auxiliary support structure. The geared motor drives the main shaft, the front four-jaw chuck, and the printing roller to rotate. During rotation, the series-type annular spray cleaning structure surrounds the printing roller and continuously sprays cleaning fluid. The four-jaw chuck has excellent clamping ability, which can tightly fix the printing roller and prevent displacement or vibration during rotation, thereby ensuring thorough cleaning. The uniformity and safety of the cleaning process are ensured by utilizing a sliding roller end auxiliary support structure in conjunction with a four-jaw chuck to achieve precise positioning and support of the printing roller. Secondly, the geared motor provides stable speed and torque, enabling the printing roller to rotate at a uniform speed, ensuring that the cleaning solution is evenly sprayed across the entire surface of the printing roller. The series-type ring spray structure surrounds the printing roller, continuously spraying cleaning solution, which can achieve all-round, multi-angle spraying of the printing roller, covering every inch of the printing roller surface, especially the inner or edge areas that are difficult to reach by traditional nozzles. The continuous spraying of cleaning solution not only improves the thoroughness of cleaning, but also continuously washes away ink residues during rotation, reducing dead corners and blind spots, and significantly improving the cleaning effect. Attached Figure Description

[0011] Figure 1 This is a side view of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0014] Figure 4 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0015] Figure 5 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0016] Figure 6 This is a three-dimensional structural diagram of the present invention after the top cover has been removed.

[0017] In the diagram: 1. Double-layer trapezoidal frame; 2. Cleaning tank; 3. Sloping drainage channel; 4. Drain pipe; 5. Upper tank cover; 6. Sliding roller end auxiliary support structure; 601. Vertical bearing seat; 602. Internal spline shaft; 603. External spline shaft; 604. Rear four-jaw chuck; 7. Gear motor; 8. Main shaft; 9. Front four-jaw chuck; 10. Serial ring spray structure; 1001. Annular liquid storage pipe; 1002. Nozzle; 1003. Connecting pipe; 1004. Liquid inlet straight pipe; 11. Motor controller. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figure 1-6 An embodiment of this utility model provides a printing roller cleaning device for a printing press, comprising a double-layer trapezoidal frame 1, a cleaning box 2 fixed at the top of the double-layer trapezoidal frame 1, a main shaft 8 rotatably mounted at one edge of the top of the cleaning box 2, and a front four-jaw chuck 9 fixed at one end of the main shaft 8. A reduction motor 7 for driving the rotation of the main shaft 8 is installed on one outer wall of the cleaning box 2, and a sliding roller end auxiliary support structure 6 is installed at the other edge of the top of the cleaning box 2. The printing roller to be cleaned is clamped between the front four-jaw chuck 9 and the sliding roller end auxiliary support structure 6. A series annular spray cleaning structure 10 coaxial with the front four-jaw chuck 9 is installed inside the cleaning box 2, and a motor controller 11 electrically connected to the input end of the reduction motor 7 is installed on one outer wall of the cleaning box 2.

[0020] The top of the cleaning tank 2 is hinged to one side of the top of the upper tank cover 5. Both the cleaning tank 2 and the upper tank cover 5 are made of stainless steel. When the serial ring spray washing structure 10 actively sprays and washes the printing roller, the operator can close the upper tank cover 5 so that the cleaning tank 2 and the upper tank cover 5 form a relatively closed box structure to reduce the overflow of cleaning liquid.

[0021] The sliding roller end auxiliary support structure 6 includes a vertical bearing seat 601 installed at one edge of the top of the cleaning tank 2, an inner spline shaft 602 rotatably installed inside the vertical bearing seat 601, and an outer spline shaft 603 slidably installed inside the inner spline shaft 602. A rear four-jaw chuck 604 is fixed at one end of the outer spline shaft 603 near the main shaft 8. The outer spline shaft 603 and the main shaft 8 are coaxial. One end of the printing roller is firmly clamped by the front four-jaw chuck 9. The operator adjusts the position of the rear four-jaw chuck 604 according to the length of the printing roller. At this time, the outer spline shaft 603 is manually slid, so that the outer spline shaft 603 slides inside the inner spline shaft 602 to adjust the distance between the rear four-jaw chuck 604 and the front four-jaw chuck 9, so as to meet the cleaning and maintenance of printing rollers of different lengths.

[0022] The bottom of the cleaning tank 2 is integrally formed with a sloped drainage channel 3, and a drainage pipe 4 is installed on one side of the outer wall of the sloped drainage channel 3. A switch valve is installed at the bottom of the drainage pipe 4. During the spraying process, the sewage is discharged from the cleaning tank 2 through the sloped drainage channel 3 and the drainage pipe 4.

[0023] The series-type annular spray washing structure 10 includes multiple annular liquid storage pipes 1001 installed in a linear, equally spaced array inside the washing tank 2, and a connecting pipe 1003 installed between two adjacent annular liquid storage pipes 1001. Several nozzles 1002 are installed at equal intervals on the inner wall of the annular liquid storage pipes 1001. One side of the outer wall of one of the annular liquid storage pipes 1001 is equipped with a straight inlet pipe 1004 that extends to the outside of the washing tank 2. The external cleaning liquid enters the annular liquid storage pipe 1001 through the straight inlet pipe 1004 and is connected to the other annular liquid storage pipes 1001 by the connecting pipe 1003. Then, the cleaning liquid is sprayed through the nozzles 1002 onto the printing roller at the central axis position to achieve the purpose of all-round spray washing of the printing roller.

[0024] In this embodiment, the operator first removes the printing roller to be cleaned from the printing press. During this process, the operator should follow the printing press's disassembly guide to ensure the roller is removed securely and slowly, avoiding damage to the roller or mechanical parts due to sudden force. After disassembly, one end of the roller is clamped by the front four-jaw chuck 9, and the other end is clamped by the sliding roller end auxiliary support structure 6 to ensure the roller is stable and facilitates subsequent cleaning. At this time, the operator should conduct a preliminary inspection of the roller surface to observe for obvious ink residue, mechanical damage, or deformation. The operator then connects the inlet end of the series-type annular spray cleaning structure 10 to an external cleaning fluid delivery pump, which pumps the cleaning fluid into the series-type annular spray cleaning structure 10. Subsequently, the reduction motor 7 is turned on, driving the main shaft 8 and the front four-jaw chuck 9. The rotation speed of the geared motor 7 should be adjusted according to the spraying requirements of the cleaning fluid to ensure the cleaning effect and avoid mechanical vibration. The series ring spray structure 10 sprays the cleaning fluid onto the surface of the printing roller, covering the entire roller surface. During the cleaning process, the operator closes the upper cover 5, so that the cleaning tank 2 and the upper cover 5 form a relatively closed chamber to reduce liquid splashing during the cleaning process. After cleaning, the operator lifts up the upper cover 5 and gently wipes the roller surface with a soft cloth or brush to confirm that the ink residue has been effectively removed. After the geared motor 7 stops, the operator gradually loosens the clamping restrictions of the front four-jaw chuck 9 and the sliding roller end auxiliary support structure 6 on the printing roller and removes the printing roller. Finally, the device is inspected to confirm that there is no residual cleaning fluid or impurities, ensuring that the device is clean and in normal condition. The printing roller is then properly stored or prepared to be reinstalled on the printing press.

Claims

1. A printing roller cleaning device for a printing press, characterized in that: The system includes a double-layer trapezoidal frame (1), a cleaning box (2) fixed at the top of the double-layer trapezoidal frame (1), a main shaft (8) rotatably mounted at one edge of the top of the cleaning box (2), and a front four-jaw chuck (9) fixed at one end of the main shaft (8). A geared motor (7) for driving the main shaft (8) to rotate is installed on one outer wall of the cleaning box (2). A sliding roller end auxiliary support structure (6) is installed at the other edge of the top of the cleaning box (2). The printing roller to be cleaned is clamped between the front four-jaw chuck (9) and the sliding roller end auxiliary support structure (6). A series ring spray washing structure (10) coaxial with the front four-jaw chuck (9) is installed inside the cleaning box (2). A motor controller (11) electrically connected to the input end of the geared motor (7) is installed on one outer wall of the cleaning box (2).

2. The printing roller cleaning device for a printing press according to claim 1, characterized in that: The top cover (5) is hinged to one side of the top of the cleaning tank (2).

3. The printing roller cleaning device for a printing press according to claim 1, characterized in that: The sliding roller end auxiliary support structure (6) includes a vertical bearing seat (601) installed at one edge of the top of the cleaning tank (2), an inner spline shaft (602) rotatably installed inside the vertical bearing seat (601), and an outer spline shaft (603) slidably installed inside the inner spline shaft (602). A rear four-jaw chuck (604) is fixed at one end of the outer spline shaft (603) near the main shaft (8). The outer spline shaft (603) and the main shaft (8) are coaxial.

4. The printing roller cleaning device for a printing press according to claim 1, characterized in that: The bottom of the cleaning tank (2) is integrally formed with a sloped drainage channel (3), and a drainage pipe (4) is installed on one side of the outer wall of the sloped drainage channel (3), and a switch valve is installed at the bottom of the drainage pipe (4).

5. The printing roller cleaning device for a printing press according to claim 1, characterized in that: The series-type ring spray structure (10) includes multiple annular liquid storage tubes (1001) installed in a straight, equally spaced array inside the cleaning tank (2) and a connecting pipe (1003) installed between two adjacent annular liquid storage tubes (1001). Several nozzles (1002) are installed at equal intervals on the inner wall of the annular liquid storage tubes (1001), and a straight inlet pipe (1004) that penetrates to the outside of the cleaning tank (2) is installed on one side of the outer wall of one of the annular liquid storage tubes (1001).

6. The printing roller cleaning device for a printing press according to claim 2, characterized in that: The cleaning box (2) and the upper cover (5) are both made of stainless steel.

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