CN214646842U

CN214646842U - Automatic cleaning machine for gravure roller of printing machine

Info

Publication number: CN214646842U
Application number: CN202120418105.4U
Authority: CN
Inventors: 刘国方; 任耀庭; 屈瑶
Original assignee: Zhejiang Meige Machinery Co ltd
Current assignee: Zhejiang Meige Machinery Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-11-09
Anticipated expiration: 2031-02-25

Abstract

The utility model relates to a large-scale gravure press corollary equipment field. The technical scheme is as follows: the utility model provides a printing machine gravure roller automatic cleaning machine which characterized in that: the automatic cleaning device comprises a rack, two support frames, two autorotation mechanical arms, three cleaning assemblies and circulating water treatment equipment, wherein the two support frames can be horizontally positioned at the upper part of the rack in a sliding manner along the left-right direction through first transmission assemblies respectively, the two autorotation mechanical arms can be vertically positioned on the two support frames in a sliding manner through second transmission assemblies respectively, the three cleaning assemblies are arranged at the lower part of the rack to clean a drying roller, and the circulating water treatment equipment is used for providing cleaning water and collecting and treating sewage; the three cleaning components are a coarse washing tank, an ultrasonic plate washing tank and a cleaning and blow-drying device which are sequentially arranged from left to right; a feeding transfer rack for placing a roller to be cleaned is arranged on the side surface of the coarse washing tank; and a transfer table for placing a clean printing roller is arranged on the side surface of the cleaning and drying device. The automatic cleaning machine can improve the cleaning efficiency and the cleaning quality of the printing roller, greatly saves labor and reduces the production cost.

Description

Automatic cleaning machine for gravure roller of printing machine

Technical Field

The utility model belongs to the technical field of large-scale gravure press corollary equipment and specifically relates to an automatic cleaning machine of gravure roll of gravure press after the printing.

Background

At present, after a pattern is printed on a printing roller used by an intaglio printing press, the printing roller needs to be cleaned and can be stored in a warehouse. The existing method for cleaning the printing roller is to start the printing machine again under the non-printing condition after the printing of the printing machine is finished, so that the printing roller runs on the printing equipment at a low speed, and then manually brush and clean the surface of the printing roller by using clean water, a scrubbing brush and a chemical solvent in a manual mode. Because the mesh pit of the plate roller is very small, a long time is needed for cleaning the plate roller, and the effective printing working time of a printing machine is needed to be occupied when the plate roller is cleaned; in addition, water and cleaning liquid for manually cleaning the printing roller can be directly discharged after being used once, so that great material resource waste is caused, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of above-mentioned background art, provide a printing machine gravure roller self-cleaning machine, this self-cleaning machine can realize transporting version roller, self-cleaning stoving version roller and automatic cycle water automatically to use manpower sparingly greatly, improve the cleaning efficiency and the cleaning quality of version roller, and can not occupy the normal printing operating time of printing machine, avoid lithography apparatus's air-loss extravagant, but clean water cyclic utilization, reduction in production cost.

The utility model provides a technical scheme is:

the utility model provides a printing machine gravure roller automatic cleaning machine which characterized in that: the automatic cleaning device comprises a rack, two support frames, two autorotation mechanical arms, three cleaning assemblies and circulating water treatment equipment, wherein the two support frames can be horizontally positioned at the upper part of the rack in a sliding manner along the left-right direction through first transmission assemblies respectively, the two autorotation mechanical arms can be vertically positioned on the two support frames in a sliding manner through second transmission assemblies respectively, the three cleaning assemblies are arranged at the lower part of the rack to clean a drying roller, and the circulating water treatment equipment is used for providing cleaning water and collecting and treating sewage; the three cleaning components are a coarse washing tank, an ultrasonic plate washing tank and a cleaning and blow-drying device which are sequentially arranged from left to right; a feeding transfer rack for placing a roller to be cleaned is arranged on the side surface of the coarse washing tank; a transfer table for placing a clean printing roller is arranged on the side surface of the cleaning and drying device; the feeding transfer frame and the transfer platform are respectively positioned below the horizontal movement paths of the two support frames so as to ensure that the two autorotation mechanical arms can smoothly grab or place the printing roller; and the circulating water treatment equipment is respectively connected with the rough washing tank, the ultrasonic plate washing tank and the cleaning and blow-drying device.

The two autorotation mechanical arms have the same structure; each self-rotating mechanical arm comprises a fixed arm, two groups of clamping devices and a driving device, wherein the fixed arm is horizontally arranged in the front-back direction and is axially penetrated, the two groups of clamping devices are respectively arranged at the two ends of the fixed arm to clamp the printing roller, and the driving device is used for driving the two groups of clamping devices to act;

the two groups of clamping devices have the same structure; each group of clamping devices comprises a telescopic arm, a clamping arm, a rotating shaft and a gripper, wherein one end of the telescopic arm extends into the fixed arm, the clamping arm is vertically arranged, the upper part of the clamping arm is fixedly connected with the other end of the telescopic arm, the rotating shaft is horizontally arranged along the front-back direction, one end of the rotating shaft is rotatably positioned at the lower part of the clamping arm, and the gripper is fixed at the other end of the rotating shaft and matched with a taper hole at the end part of the printing roller;

the driving device comprises a clamping motor which is arranged on the fixed arm and drives the two telescopic arms to move in opposite directions and a rotating shaft motor which is arranged on the clamping arm of one group of clamping devices and drives the corresponding rotating shaft to rotate.

The rough washing tank comprises a first box body, a first upper washing pipe, a first lower washing pipe and a first brush roller, wherein the first box body is hollow inside, the upper portion of the first box body is opened to accommodate the plate roller, the first upper washing pipe and the first lower washing pipe stretch into the first box body, and the first brush roller can be rotatably positioned in the first box body around the axis of the first brush roller.

The ultrasonic plate washing tank comprises a second box body, a left carrier roller, a right carrier roller and a plurality of wave generators, wherein the second box body is hollow inside, the upper part of the second box body is provided with an opening for accommodating the plate roller, the left carrier roller and the right carrier roller can be rotatably positioned in the second box body around the axis of the left carrier roller and the right carrier roller, and the wave generators are arranged on the outer wall of the second box body; the left carrier roller and the right carrier roller are parallel to each other and are horizontally arranged along the front-back direction, and the axes of the left carrier roller and the right carrier roller are positioned on the same horizontal plane and are used for jacking the cleaned printing roller together.

The cleaning and drying device comprises a third box body, a second upper washing pipe, a second lower washing pipe, a second brush roller and a high-pressure air knife, wherein the third box body is hollow inside, the upper portion of the third box body is arranged to be open so as to accommodate the printing roller, the second upper washing pipe and the second lower washing pipe are installed inside the third box body, the second brush roller can be rotationally positioned inside the third box body around the axis of the second brush roller, the high-pressure air knife is arranged at the opening of the box body, and the air outlet of the high-pressure air knife is aligned to the printing roller so as to dry the printing roller.

The first upper washing pipe, the first lower washing pipe, the first brush roller, the second upper washing pipe, the second lower washing pipe and the second brush roller are parallel to the printing roller and are horizontally arranged along the front-back direction; the outer surfaces of the first upper washing pipe, the first lower washing pipe, the second upper washing pipe and the second lower washing pipe are uniformly provided with a plurality of spray holes aligned with the plate roller along the axis direction so as to spray washing liquid to the outer circumferential surface of the plate roller.

And the outer surfaces of the first brush roller and the second brush roller are respectively provided with a flexible object so as to be in close contact with the outer circumferential surface of the plate roller to scrub the plate roller.

The inlet has all been seted up to the lateral wall of first box, second box and third box to the leakage fluid dram has all been seted up to the bottom, so that with circulating water treatment facility intercommunication.

The side wall of the second box body is provided with a liquid overflowing port; and the position of the overflow port is higher than the tops of the outer surfaces of the left carrier roller and the right carrier roller so as to ensure that the printing roller is completely soaked in the ultrasonic liquid.

The first transmission assembly adopts a gear and rack structure for transmission; the second transmission assembly adopts a screw-nut structure for transmission.

The utility model has the advantages that:

1) the utility model discloses a rotation robotic arm can carry out the automation to version roller and transport, washes the version groove and washs through thick washtrough, ultrasonic wave and weather the device linkage and wash and dry to version roller surface, has effectively solved artifical washing version roller time length, takes a lot of work and time, standby time is long, the extravagant big problem of energy, has improved the washing speed and the cleaning quality of version roller, has reduced the cost of labor.

2) The circulating water treatment equipment can collect, treat and recycle the wastewater generated by the rough washing tank, the ultrasonic plate washing tank and the cleaning and drying device, greatly saves material resources, reduces production cost and achieves the effects of energy conservation and emission reduction.

3) The utility model discloses an integrated overall arrangement of each part unit of automatic cleaning machine, compact structure to realized that automatic fortune version, linkage wash version, automatic hydrologic cycle handle's integration is used, improved the abluent degree of automation of gravure roller greatly, realized industrial automation, intelligent the making useful contribution for the printing trade.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a second schematic perspective view of the present invention.

Fig. 3 is a schematic view of the structure of the present invention.

Fig. 4 is a left side view structure diagram of the present invention.

Fig. 5 is a schematic top view of the present invention.

Fig. 6 is a schematic perspective view of a first rotation robot arm according to the present invention.

Fig. 7 is a left side view structural diagram of the first rotation robot arm of the present invention.

Fig. 8 is a schematic perspective view of the middle coarse washing tank of the present invention.

Fig. 9 is a left side view structural diagram of the middle coarse washing tank of the present invention.

Fig. 10 is a schematic view of the cross-sectional structure a-a of fig. 8.

Fig. 11 is a schematic perspective view of the ultrasonic cleaning tank of the present invention.

Fig. 12 is a schematic view of the ultrasonic cleaning tank of the present invention.

Fig. 13 is a right-side view structural schematic diagram of the ultrasonic cleaning tank of the present invention.

Fig. 14 is a schematic view of the cross-sectional structure of fig. 12 taken along line D-D.

Fig. 15 is a perspective view of the middle cleaning and drying device of the present invention.

Fig. 16 is a structural diagram of the cleaning and drying device in the right view of the present invention.

Fig. 17 is a schematic view of the cross-sectional structure F-F of fig. 15.

Reference numerals:

1. a frame;

2. a first autorotation robot arm; 2-1, clamping a motor; 2-2, a fixed arm; 2-3, a telescopic arm; 2-4, a rotating shaft motor; 2-5, clamping arms; 2-6, a rotating shaft; 2-7, a gripper; 2-8, taper holes;

3. a feeding transfer frame;

4. a rough washing tank; 4-1, a first box body; 4-2, a first lower flushing pipe; 4-3, a first brush roller; 4-4, a first upper wash pipe;

5. ultrasonic plate washing groove; 5-1, a second box body; 5-2, a right carrier roller; 5-3, a left carrier roller; 5-4, a wave generator; 5-5, ultrasonic liquid; 5-6, an overflow port;

6. cleaning and drying the device; 6-1 and a third box body; 6-2, a second lower washing pipe; 6-3, a second brush roller; 6-4, a second upper washing pipe; 6-5, high-pressure air knife; 6-6, drying the printing roller; 6-7, a plate roller cleaning position;

7. circulating water treatment equipment; 8. a transfer table; 9. a second autorotation mechanical arm; 10. a support frame; 11. a printing roller; 12. a first rack; 13. a first guide rail; 14. a carriage; 15. a second guide rail; 16. a liquid inlet; 17. a liquid discharge port; 18. a flexible object; 19. a first drive motor; 20. a cylindrical body; 21. a screw rod; 22. and a second drive motor.

Detailed Description

The following further description is made with reference to the embodiments shown in the drawings.

For convenience of description, the left side of fig. 3 is taken as the left, the right side is taken as the right, and the upper side of fig. 3 is taken as the upper side and the lower side is taken as the lower side.

The automatic cleaning machine for the gravure roller of the printing machine shown in fig. 1 to 5 comprises a frame 1, two support frames 10, two rotation mechanical arms (including a first rotation mechanical arm 2 and a second rotation mechanical arm 9), a rough cleaning tank 4, an ultrasonic plate cleaning tank 5, a cleaning and drying device 6, a feeding transfer frame 3, a transfer table 8 and circulating water treatment equipment 7. The coarse washing tank, the ultrasonic plate washing tank and the cleaning and drying device are all arranged on the lower portion of the rack and are sequentially arranged from left to right. The feeding transfer frame is arranged on the side surface (the left side in the figure) of the rough washing tank and is used for placing a roller to be cleaned; the transfer platform is arranged on the side surface (the right side in the figure) of the cleaning and drying device and used for placing a clean plate roller. The circulating water treatment equipment is respectively connected with the rough washing tank, the ultrasonic plate washing tank and the cleaning and blow-drying device and is used for providing cleaning water and collecting and treating sewage.

The two support frames can be horizontally positioned at the upper part of the machine frame in a sliding manner along the left-right direction through the first transmission assembly respectively. In the embodiment, the first transmission assembly adopts a gear and rack structure for transmission; specifically, the first transmission assembly includes a first transmission motor 19, a first gear (not shown), a first rack 12, and a first guide rail 13. The first driving motor is vertically fixed on the support frame; the first rack is horizontally fixed on the rack along the left-right direction; the first gear is fixed at the tail end of a motor shaft of the first transmission motor and is in meshed transmission with the first rack; the first guide rail is parallel to the first rack and horizontally arranged on the rack so as to horizontally guide the support frame. When the device works, the first gear is meshed with the first rack for transmission under the driving of the first transmission motor, so that the support frame fixedly connected with the first transmission motor is driven to horizontally move along the first guide rail (as can be seen from the figure, the two first transmission assemblies adopt the same rack).

The feeding transfer frame and the transfer platform are respectively positioned below the horizontal movement paths of the two support frames so as to ensure that the two autorotation mechanical arms can smoothly grab or place the printing roller 11; in this embodiment, the first autorotation robot arm 2 on the left side is used for grabbing a roller to be cleaned on the loading transfer frame; and the second self-rotating mechanical arm 9 on the right side is used for placing the cleaned plate roller on the transfer table.

The two autorotation mechanical arms can be vertically and slidably positioned on the two support frames through the second transmission assemblies respectively. In the embodiment, the second transmission assembly adopts a screw nut structure for transmission; specifically, the second transmission assembly includes a second transmission motor 22, a nut, a lead screw 21, the carriage 14, and the second guide rail 15. Said nut is rotatably positioned in the cylindrical body 20 of the support frame about a vertical axis and is provided with bevel gears on its outer periphery (neither the nut nor the bevel gear pair is shown in the figures as it is hidden inside the cylindrical body). The second transmission motor is horizontally fixed on the support frame and drives the nut to rotate through the bevel gear pair. The bottom of the sliding frame is fixedly connected with the autorotation mechanical arm; the lead screw is vertically fixed on the sliding frame and matched with the nut, when the nut rotates, the lead screw can move up and down along the vertical direction, so that the sliding frame and the self-rotating mechanical arm are driven to vertically move together, and the rotating direction of the nut is changed to control the lead screw to move upwards or downwards. The second guide rail is vertically arranged on the sliding frame, and a sliding groove matched with the second guide rail is arranged on the supporting frame so as to guide the vertical movement of the sliding frame. During operation, the second transmission motor drives the nut to rotate through the bevel gear pair, the nut drives the screw rod matched with the nut to move vertically, and the sliding frame and the rotation mechanical arm also move vertically together due to the fact that the screw rod is fixedly connected with the sliding frame and the sliding frame is fixedly connected with the rotation mechanical arm, so that the position of the rotation mechanical arm is located, and the rotation mechanical arm conveys the printing roller.

In the embodiment, two groups of first transmission assemblies and second transmission assemblies are arranged in the device, and each rotation mechanical arm is driven by one group of the first transmission assemblies and the second transmission assemblies. The motion mode of each self-rotating mechanical arm in work is as follows: during operation, first drive motor rotates, orders about first gear and the transmission of first rack meshing to drive the support frame with first drive motor fixed connection along first guide rail horizontal motion, and then drive the rotation robotic arm with support frame fixed connection and make horizontal motion. The second transmission motor drives the nut to rotate through the bevel gear pair, the nut drives the screw rod matched with the nut to vertically move, and the screw rod is fixedly connected with the sliding frame and the sliding frame is fixedly connected with the rotation mechanical arm, so that the sliding frame and the rotation mechanical arm also vertically move together, the positioning of the rotation mechanical arm is realized, and the rotation mechanical arm is convenient to transport the printing roller.

As shown in fig. 6 and 7, the two rotation robot arms can both drive the plate roller to rotate and move, so as to automatically convey the plate roller to enter and exit the rough washing tank, the ultrasonic plate washing tank or the cleaning and drying device. The two autorotation mechanical arms have the same structure; each self-rotation mechanical arm comprises a fixed arm 2-2, two groups of clamping devices and a driving device. The fixed arm is fixedly connected with the bottom of the sliding frame, and the fixed arm is horizontally arranged in the front-back direction and is axially penetrated.

And the two groups of clamping devices are respectively arranged at two ends of the fixed arm and are used for clamping the printing roller. The two groups of clamping devices have the same structure; each group of clamping devices comprises a telescopic arm 2-3, a clamping arm 2-5, a rotating shaft 2-6 and a gripper 2-7. One end of the telescopic arm extends into the fixed arm and can move along the horizontal direction; the clamping arms are vertically arranged, and the upper parts of the clamping arms are fixedly connected with the other ends of the telescopic arms (namely the outer ends of the telescopic arms); the rotating shaft is horizontally arranged, and one end of the rotating shaft is rotatably positioned at the lower part of the clamping arm; the gripper is fixed at the other end of the rotating shaft, the end part of the gripper is tapered, and the outer conical surface of the gripper can be tightly attached to the conical holes 2-8 at the end part of the gravure roller so as to clamp and grip the gravure roller. Preferably, the telescopic arm and the fixed arm are coaxially arranged, and the movement strokes of the two telescopic arms are the same; the hand grip and the rotating shaft are coaxially arranged.

The driving device is used for driving the two groups of clamping devices to act so as to clamp the printing roller and rotate the printing roller; the driving device comprises a clamping motor 2-1 and a rotating shaft motor 2-4. The clamping motor is arranged on the fixed arm and used for driving the two telescopic arms to move oppositely. In the embodiment, the clamping motor and the telescopic arm are driven by a bevel gear; specifically, the shell of the clamping motor is arranged on the fixed arm, the motor shaft of the clamping motor extends into the fixed arm, and a second bevel gear is fixed on the motor shaft of the clamping motor; one ends of the two telescopic arms extending into the fixed arm are respectively rotatably positioned with a first bevel gear, and the first bevel gear is in meshing transmission with the second bevel gear; the first bevel gear is provided with an internal threaded hole, and the telescopic arm is provided with an external thread matched with the internal threaded hole, so that the first bevel gear is rotatably connected with the telescopic arm through a thread pair; two flexible arms are still connected with the fixed arm inner wall through the sliding pair (offer the recess that the level was arranged promptly on the outer wall of flexible arm, be provided with the guide block with recess matched with on the fixed arm inner wall) to the horizontal motion to flexible arm is led. During operation, the clamping motor rotates, the first bevel gear is driven to rotate through the second bevel gear, and the first bevel gear drives the telescopic arm to move along the groove through the thread pair, so that the horizontal movement of the telescopic arm is realized. The first bevel gear, the second bevel gear, the groove and the guide block in the embodiment are hidden inside the telescopic arm and are not shown in the figure.

And the rotating shaft motor is arranged on the clamping arms of one group of clamping devices and is used for driving the corresponding rotating shaft to rotate. In the embodiment, chain transmission is adopted between the rotating shaft motor and the rotating shaft; specifically, the shell of pivot motor is fixed on the arm lock, and inside the motor shaft of pivot motor stretched into the arm lock, all installed the sprocket in the motor shaft of pivot motor and the pivot, transmitted through the chain between two sprockets. When the plate roller clamping device works, the rotating shaft motor drives the rotating shaft and the grippers in one group of the clamping devices to rotate through chain transmission, and the plate roller is clamped by the two grippers, so that the rotating shaft in the other group of the clamping devices synchronously rotates, and the plate roller rotates around the axis. The chain wheel and the chain in the embodiment are hidden in the clamping arm and are not shown in the drawing.

As shown in fig. 8 to 10, the rough wash tank includes a first tank 4-1, a first upper wash pipe 4-4, a first lower wash pipe 4-2, and a first brush roller 4-3. The upper part of the first box body is open; the first box body is internally provided with an accommodating chamber for accommodating a plate roller to be cleaned, and the first box body is internally provided with a first upper washing pipe, a first lower washing pipe and a first brush roller which are arranged in parallel with the plate roller. The first upper washing pipe and the first lower washing pipe extend into the first box body, and a plurality of spray holes aligned with the accommodating chamber are formed in the outer surfaces of the first upper washing pipe and the first lower washing pipe so as to spray washing liquid to the outer circumferential surface of the printing roller and perform high-pressure washing on the printing roller; preferably, the nozzle holes are uniformly arranged along the axial direction of the first upper washing pipe and the first lower washing pipe. The first brush roller is rotatably positioned inside the first casing about its own axis (the motor for driving the first brush roller is omitted in the drawing), and the outer surface of the first brush roller is provided with a flexible object 18 which can be brought into close contact with the outer surface of the plate roller. When the flexible brush roller is in work, the flexible object is used for brushing the plate roller under the rotation of the first brush roller.

As shown in fig. 11 to 14, the ultrasonic cleaning tank includes a second tank 5-1, a left idler 5-3, a right idler 5-2, and a plurality of wave generators 5-4. The second box body is hollow, and the upper portion of the second box body is open to accommodate the printing roller. The left carrier roller and the right carrier roller can be rotationally positioned in the second box body around the axes of the left carrier roller and the right carrier roller; the left carrier roller and the right carrier roller are parallel to each other and are horizontally arranged along the front-back direction, and the axes of the left carrier roller and the right carrier roller are positioned on the same horizontal plane to be used for jacking the cleaned printing roller together. In the embodiment, the left carrier roller and the right carrier roller are respectively driven by a group of motors (the motors are not shown in the figure), and the motors and the carrier rollers are driven by a chain wheel and chain pair; preferably, the left idler and the right idler rotate synchronously and rotate in the same direction. When the printing roller box works, the printing roller is placed between the left carrier roller and the right carrier roller and is completely sunk into the second box body, and the left carrier roller and the right carrier roller synchronously rotate under the driving of the motor, so that the printing roller is driven to reversely rotate at a constant speed on the outer peripheral surfaces of the left carrier roller and the right carrier roller. The side wall of the second box body is provided with overflow ports 5-6; the position of the overflow port is higher than the tops of the outer surfaces of the left carrier roller and the right carrier roller so as to ensure that the printing roller is completely soaked in the ultrasonic liquid 5-5. Each wave generator is arranged on the outer wall of the second box body and is used for generating ultrasonic liquid by the water injected into the second box body; preferably, the wave generators are uniformly arranged at the lower side and the bottom of the outer wall of the second box body.

As shown in fig. 15 to 17, the cleaning and drying device includes a third case 6-1, a second upper washing pipe 6-4, a second lower washing pipe 6-2, a second brush roller 6-3, and a high pressure air knife 6-5. The third box body is hollow inside, and the upper part of the third box body is provided with an opening to accommodate the printing roller; when the automatic conveying device works, the printing roller is conveyed to the interior of the third box body from the opening of the third box body by the automatic rotating mechanical arm; when the roller of the utility model is cleaned and dried, the rotation mechanical arm respectively positions the roller at the roller cleaning position 6-7 in the third box and the roller drying position 6-6 (see the dotted line part of fig. 17).

The second upper washing pipe and the second lower washing pipe are arranged in the third box body, and a plurality of spray holes aligned with the printing roller are uniformly formed in the outer surfaces of the second upper washing pipe and the second lower washing pipe along the axis direction so as to spray cleaning liquid to the outer circumferential surface of the printing roller and clean the printing roller. The second brush roller is rotatably positioned inside the third casing about its own axis (the motor for driving the second brush roller is omitted in the drawing), and the outer surface of the second brush roller is fitted with a flexible object 18 which can be brought into close contact with the outer surface of the plate roller. When the device works, the flexible object is used for scrubbing the plate roller under the rotation of the second brush roller. Obviously, the rotating direction of the second brush roller is opposite to the rotating direction of the printing roller in the accommodating chamber, so that the cleaning effect of the printing roller is improved. And the high-pressure air knife is arranged at the opening of the third box body, and the air outlet of the high-pressure air knife is aligned with the printing roller so as to blow the printing roller. Preferably, the high-pressure air knife is arranged obliquely downwards, and the air outlet of the high-pressure air knife is aligned with the lower part of the printing roller.

The first upper washing pipe, the first lower washing pipe, the first brush roller, the second upper washing pipe, the second lower washing pipe and the second brush roller are parallel to the plate roller and are horizontally arranged in the front-back direction. Preferably, the lengths of the first upper washing pipe, the first lower washing pipe, the first brush roller, the second upper washing pipe, the second lower washing pipe, the second brush roller and the high-pressure air knife are not less than the length of the plate roller, so that the outer circumferential surface of the whole plate roller can be cleaned.

Liquid inlets 16 are formed in the side walls of the first box body, the second box body and the third box body, and liquid discharge ports 17 are formed in the bottoms of the first box body, the second box body and the third box body so as to be communicated with circulating water treatment equipment. In this implementation, circulating water treatment equipment will wash and weather and directly send to thick washtrough and use in the device exhaust sewage directly after purification treatment, and thick washtrough and ultrasonic cleaning tank exhaust sewage supply whole automatic cleaning machine to use after carrying out scrubbing and purification treatment through circulating water treatment equipment simultaneously.

The utility model discloses a working method as follows:

the first autorotation mechanical arm moves above the feeding transfer frame, the first autorotation mechanical arm descends onto the feeding transfer frame, clamps a printing roller to be cleaned and moves above the rough washing groove, then descends into the first box body, the cleaning function of the rough washing groove is started, the first upper washing pipe and the first lower washing pipe spray cleaning fluid on the surface of the printing roller, the printing roller is subjected to high-pressure washing, the first brush roller rotates and scrubs the printing roller, and after the printing roller is cleaned, the cleaning program of the rough washing groove is stopped, and the rough washing operation of the printing roller is completed.

The first autorotation mechanical arm drives the printing roller to vertically move upwards out of the first box body, the first autorotation mechanical arm drives the printing roller to horizontally move to the upper part of the ultrasonic plate washing groove, the printing roller moves downwards and leaves the second box body after being placed between the left carrier roller and the right carrier roller, and the first autorotation mechanical arm returns to the upper part of the loading transfer rack to prepare for the cleaning and conveying work of the next printing roller to be cleaned; meanwhile, the printing roller in the ultrasonic plate washing tank rotates at a constant speed under the action of the left carrier roller and the right carrier roller, so that the plate lines on the outer surface of the printing roller can be completely and deeply soaked and cleaned in the ultrasonic liquid; and then, a second autorotation mechanical arm on the same horizontal track with the first autorotation mechanical arm moves into a second box body, the second autorotation mechanical arm clamps the printing roller and then vertically lifts the printing roller to drive the printing roller to leave the ultrasonic plate washing groove, and the ultrasonic cleaning operation of the printing roller is completed.

And the second autorotation mechanical arm horizontally moves the printing roller to reach the upper part of the cleaning and drying device, then vertically descends into a third box body, and conveys the printing roller to a printing roller cleaning position in the third box body. And starting the cleaning function of the cleaning and blow-drying device, spraying water to the surface of the plate roller by the second upper cleaning pipe and the second lower cleaning pipe, and then washing the surface of the plate roller by the second brush roller through the close contact of the flexible object and the outer surface of the plate roller, so as to further clean stains and impurities on the surface of the plate roller. And after the printing roller is cleaned, closing the cleaning program, starting the blow-drying program, moving the printing roller to a printing roller blow-drying position by the second self-rotating mechanical arm, blowing air to the outer surface of the printing roller by the high-pressure air knife, and blowing and drying the residual water on the surface of the printing roller until the printing roller meets the warehousing standard. And closing the drying program to finish the automatic cleaning and drying of the printing roller.

And the second autorotation mechanical arm is vertically lifted to drive the printing roller to move out of the cleaning and drying device and horizontally move to the upper part of the transfer table, the second autorotation mechanical arm is vertically lowered, the gripper is loosened to place the cleaned printing roller on the transfer table, and then the printing roller is vertically lifted to the original position to prepare for the next printing roller conveying, cleaning and drying work.

The circulating water treatment equipment is respectively connected with the rough washing tank, the ultrasonic plate washing tank and the cleaning and drying device and is used for automatically controlling and providing clean water; the other function of the circulating water treatment equipment is to collect waste water generated by the rough washing tank, the ultrasonic plate washing tank and the cleaning and drying device when the plate roller is cleaned. During operation, circulating water treatment facilities directly send the follow washing to weather device exhaust sewage and use to thick washtrough after purification treatment, and thick washtrough and ultrasonic cleaning tank exhaust sewage carry out scrubbing and purification treatment back through circulating water treatment facilities simultaneously, supply whole automatic cleaning machine to use.

Because the utility model provides an automatic cleaning machine has formed automatic transport, self-cleaning, automatic stoving, the complete closed loop system of automatic hydrologic cycle processing, has improved the abluent degree of automation of gravure roller greatly, has improved the washing speed and the cleaning quality of version roller, has reduced the cost of labor, is fit for using widely.

Finally, it should be noted that the above-mentioned embodiments illustrate only specific embodiments of the invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.

Claims

1. The utility model provides a printing machine gravure roller automatic cleaning machine which characterized in that: the device comprises a rack (1), two support frames (10) which are horizontally positioned at the upper part of the rack in a sliding manner along the left-right direction through a first transmission assembly respectively, two autorotation mechanical arms which are vertically positioned on the two support frames in a sliding manner through a second transmission assembly respectively, three cleaning assemblies which are arranged at the lower part of the rack and used for cleaning a drying plate roller, and circulating water treatment equipment (7) which is used for providing cleaning water and collecting and treating sewage; the three cleaning components are a coarse cleaning tank (4), an ultrasonic plate cleaning tank (5) and a cleaning and blow-drying device (6) which are sequentially arranged from left to right; a feeding transfer rack (3) for placing a roller to be cleaned is arranged on the side surface of the rough washing tank; a transfer table (8) for placing a clean printing roller is arranged on the side surface of the cleaning and drying device; the feeding transfer frame and the transfer platform are respectively positioned below the horizontal movement paths of the two support frames so as to ensure that the two self-rotating mechanical arms can smoothly grab or place the printing roller (11); and the circulating water treatment equipment is respectively connected with the rough washing tank, the ultrasonic plate washing tank and the cleaning and blow-drying device.

2. The printing press gravure roller automatic cleaning machine according to claim 1, wherein: the two autorotation mechanical arms have the same structure; each self-rotating mechanical arm comprises a fixed arm (2-2) which is horizontally arranged in the front-back direction and is axially penetrated, two groups of clamping devices which are respectively arranged at two ends of the fixed arm to clamp the printing roller, and a driving device for driving the two groups of clamping devices to act;

the two groups of clamping devices have the same structure; each group of clamping devices comprises a telescopic arm (2-3) with one end extending into the fixed arm, a clamping arm (2-5) which is vertically arranged and the upper part of which is fixedly connected with the other end of the telescopic arm, a rotating shaft (2-6) which is horizontally arranged along the front-back direction and one end of which is rotatably positioned at the lower part of the clamping arm, and a gripper (2-7) which is fixed at the other end of the rotating shaft and is matched with a taper hole (2-8) at the end part of the printing roller;

the driving device comprises a clamping motor (2-1) which is arranged on the fixed arm and drives the two telescopic arms to move oppositely, and a rotating shaft motor (2-4) which is arranged on the clamping arm of one group of clamping devices and drives the corresponding rotating shaft to rotate.

3. The printing press gravure roller automatic cleaning machine according to claim 2, characterized in that: the rough washing tank comprises a first box body (4-1) which is hollow inside and is open at the upper part for accommodating the plate roller, a first upper washing pipe (4-4) and a first lower washing pipe (4-2) which extend into the first box body, and a first brush roller (4-3) which can be positioned in the first box body in a rotating mode around the axis of the first brush roller.

4. The printing press gravure roller automatic cleaning machine according to claim 3, wherein: the ultrasonic plate washing tank comprises a second box body (5-1) which is hollow inside and is provided with an opening at the upper part for accommodating the plate roller, a left carrier roller (5-3) and a right carrier roller (5-2) which can be positioned in the second box body in a rotating way around the axis of the carrier roller, and a plurality of wave generators (5-4) which are arranged on the outer wall of the second box body; the left carrier roller and the right carrier roller are parallel to each other and are horizontally arranged along the front-back direction, and the axes of the left carrier roller and the right carrier roller are positioned on the same horizontal plane and are used for jacking the cleaned printing roller together.

5. The printing press gravure roller automatic cleaning machine according to claim 4, wherein: the cleaning and drying device comprises a third box body (6-1) which is hollow inside and is provided with an opening at the upper part for accommodating the printing roller, a second upper washing pipe (6-4) and a second lower washing pipe (6-2) which are arranged inside the third box body, a second brush roller (6-3) which can be rotationally positioned inside the third box body around the axis of the second brush roller, and a high-pressure air knife (6-5) which is arranged at the opening of the box body and has an air outlet aligned with the printing roller for drying the printing roller.

6. The printing press gravure roller automatic cleaning machine according to claim 5, wherein: the first upper washing pipe, the first lower washing pipe, the first brush roller, the second upper washing pipe, the second lower washing pipe and the second brush roller are parallel to the printing roller and are horizontally arranged along the front-back direction; the outer surfaces of the first upper washing pipe, the first lower washing pipe, the second upper washing pipe and the second lower washing pipe are uniformly provided with a plurality of spray holes aligned with the plate roller along the axis direction so as to spray washing liquid to the outer circumferential surface of the plate roller.

7. The printing press gravure roller automatic cleaning machine according to claim 6, wherein: and the outer surfaces of the first brush roller and the second brush roller are respectively provided with a flexible object (18) so as to be in close contact with the outer circumferential surface of the plate roller to scrub the plate roller.

8. The printing press gravure roll automatic cleaning machine according to claim 7, wherein: liquid inlet (16) have all been seted up to the lateral wall of first box, second box and third box to leakage fluid dram (17) have all been seted up to the bottom, so that with circulating water treatment facilities intercommunication.

9. The printing press gravure roll automatic cleaning machine according to claim 8, wherein: the side wall of the second box body is provided with a spillover port (5-6); the position of the overflow port is higher than the tops of the outer surfaces of the left carrier roller and the right carrier roller so as to ensure that the printing roller is completely soaked in the ultrasonic liquid (5-5).

10. The printing press gravure roll automatic cleaning machine according to claim 9, wherein: the first transmission assembly adopts a gear and rack structure for transmission; the second transmission assembly adopts a screw-nut structure for transmission.