CN214563852U

CN214563852U - Ink scraping device for printing machine

Info

Publication number: CN214563852U
Application number: CN202120537574.8U
Authority: CN
Inventors: 徐黎平; 杨晓举
Original assignee: Hangzhou Mingri Flexible Packaging Co ltd
Current assignee: Hangzhou Mingri Flexible Packaging Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-11-02
Anticipated expiration: 2031-03-15

Abstract

The application relates to a wiping arrangement for printing machine relates to the technical field of printing machine. This application includes the scraper, is used for driving adjustment mechanism, the clearance mechanism that the scraper is close to or keeps away from the ink roller, and clearance mechanism includes clearance piece and the drive assembly who is used for driving the motion of clearance piece, and clearance piece cladding is in the outside of scraper cutting edge, and the length direction of clearance piece edge slides and sets up. The driving assembly drives the cleaning member to slide along the scraper, so that the ink attached to the scraper is scraped off, and the adverse effect of the ink attached to the scraper on the printing quality is reduced.

Description

Ink scraping device for printing machine

Technical Field

The present application relates to the field of printing presses, and more particularly, to a wiping device for a printing press.

Background

At present, printing machines generally comprise mechanisms such as plate loading, inking, stamping, paper conveying and film conveying. When printing, firstly, characters and images to be printed are made into a printing plate, the printing plate is installed on a printing machine, then, the printing ink is coated on the printing plate, and then, the printing plate is directly or indirectly transferred to paper, films or other printing stocks, thereby completing the printing work.

A printing press typically includes an ink roller and a doctor blade disposed adjacent to the ink roller for scraping excess ink from the ink roller, the doctor blade being spaced from the ink roller by an adjustable distance. When the printing machine works for a long time, part of ink can be adhered to the scraper, the adhesion becomes strong after the ink is dried, and when the scraper carries out ink scraping, the ink adhered to the scraper is easy to cause uneven ink distribution on an ink roller, so that the printing quality is poor.

SUMMERY OF THE UTILITY MODEL

In order to clean ink attached to a scraper and improve printing quality, the application provides a scraping device for a printing machine.

The application provides a wiping arrangement for printing machine adopts following technical scheme:

the utility model provides a wiping arrangement for printing machine, includes the scraper, is used for the drive the scraper is close to or keeps away from ink roller's adjustment mechanism, clearance mechanism includes clearance piece and is used for the drive assembly of clearance piece motion, clearance piece cladding in the outside of scraper cutting edge, the clearance piece is followed the length direction of scraper slides and sets up.

Through adopting above-mentioned technical scheme, adjustment mechanism can adjust the interval of scraper and ink roller, and the staff can regularly start clearance mechanism, and drive assembly drive clearance piece slides along the scraper to ink on will adhering to the scraper is scraped off, accomplishes the cleaning work to the scraper, reduces the adverse effect of the ink of adhesion on the scraper to printing quality.

Optionally, the driving assembly includes a screw rod and a driving motor for driving the screw rod to rotate, the screw rod is parallel to the scraper, the cleaning member is sleeved on the outer side of the screw rod, and the cleaning member is in threaded fit with the screw rod; the scraper has been seted up the guide way, the guide way is followed the length direction of scraper extends the setting, be equipped with the guide block on the clearance piece, the guide way with guide block sliding fit.

By adopting the technical scheme, the driving motor drives the screw rod to rotate, the cleaning piece slides along the screw rod, and the cleaning piece slides and scrapes off the ink on the scraper simultaneously, so that the structure is simple and the implementation is convenient; the guide groove is in sliding fit with the guide block, so that the stability of the sliding process of the cleaning piece is improved, and the cleaning effect on the printing ink is improved.

Optionally, the scraper is horizontally arranged, one end of the scraper, which is used for abutting against the cleaning piece, is provided with a flow guide inclined surface, and the guide groove is located on one side of the scraper, which is far away from the flow guide inclined surface.

Through adopting above-mentioned technical scheme, when the scraper scraped the china ink, water conservancy diversion inclined plane played direction, drainage effect to the printing ink of scraping from the ink roller, and the guide way is not seted up on the water conservancy diversion inclined plane, can minimize printing ink flow to the guide way in, avoids printing ink to get into the guide way as far as possible and leads to the guide block to slide and receive the obstructed condition.

Optionally, the cleaning element covers the entire outer side of the diversion inclined plane.

Through adopting above-mentioned technical scheme, the cladding of clearance piece is in the outside on whole water conservancy diversion inclined plane for the clearance piece can be with attached to the basic clean up of printing ink on the water conservancy diversion inclined plane, makes the water conservancy diversion inclined plane play better water conservancy diversion effect.

Optionally, the scraper includes a protruding portion protruding from the upper surface of the scraper, the protruding portion is parallel to the screw rod, and the guide groove is opened at the upper end of the protruding portion.

Through adopting above-mentioned technical scheme, the in-process that the clearance piece pushed away printing ink along the scraper, partial printing ink may flow to the guide way, because the guide way is seted up on lug portion to avoid printing ink to flow into in the guide way as far as possible, be favorable to guaranteeing that the guide block slides smoothly in the guide way.

Optionally, a plurality of diversion holes penetrating through the scraper are formed in the upper surface of the scraper, the diversion holes are arranged at intervals along the length direction of the scraper, and the diversion holes are located on one side, close to the diversion inclined plane, of the protruding block portion.

Through adopting above-mentioned technical scheme, when the printing ink on the clearance piece clearance scraper, partial printing ink probably flows to the lug portion to detain the contained angle department that forms on lug portion and scraper upper end, the water conservancy diversion hole helps leading out this partial printing ink downwards, makes printing ink can flow back and cyclic utilization.

Optionally, a plurality of grease grooves are formed in the guide groove, and lubricating grease is filled in each grease groove.

Through adopting above-mentioned technical scheme, because the packing has lubricating grease in the grease groove of guide way to can improve the lubricated effect of guide block and guide way, the relative frictional force of guide block and guide way reduces, and the clearance piece slides more smoothly along the scraper.

Optionally, two ends of the cleaning piece in the movement direction of the cleaning piece are respectively provided with a protective sleeve, and the protective sleeves are in threaded fit with the screw rods.

Through adopting above-mentioned technical scheme, when the scraper was scraped off with printing ink to the clearance piece, the condition of outside sputtering probably appeared in a small amount of printing ink, if printing ink sputtering to the lead screw on, the printing ink drying back probably leads to appearing blockking between clearance piece and the lead screw, reduces the cleaning efficiency to the scraper.

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

1. the cleaning member is arranged on the outer side of the cutting edge of the scraper in a covering mode, and the driving assembly drives the cleaning member to slide along the scraper, so that ink attached to the scraper is scraped off, and adverse effects of the ink attached to the scraper on printing quality are reduced;

2. through the arrangement of the screw rod, the driving motor, the guide groove and the guide block, the screw rod can drive the cleaning piece to slide along the scraper, the structure is simple, the implementation is convenient, and the sliding stability is good;

3. through setting up lug portion, the guide way is seted up in lug portion, avoids printing ink to flow into in the guide way as far as possible, is favorable to guaranteeing that the guide block slides smoothly in the guide way.

Drawings

Fig. 1 is a schematic structural view of a wiping device for a printing press according to an embodiment of the present application;

fig. 2 is a cross-sectional view of the cleaning member of fig. 1.

Description of reference numerals: 1. an ink tank; 11. a chute; 2. an ink roller; 3. a scraper; 31. a diversion bevel; 32. a support tab; 33. a bump portion; 34. a guide groove; 35. a grease groove; 36. a flow guide hole; 4. an adjustment mechanism; 41. a cylinder; 5. a cleaning mechanism; 51. cleaning the workpiece; 511. a protective sleeve; 512. a guide block; 52. a drive assembly; 521. a screw rod; 522. the motor is driven.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

Referring to fig. 1 and 2, a part of a conventional printing press includes an ink tank 1 for storing ink, an ink roller 2 rotatably provided in the ink tank 1 about its axis, and a squeegee installed on one side of the ink roller 2. The ink roller 2 is horizontally arranged in the ink tank 1, and the ink scraping device is used for scraping off redundant ink on the ink roller 2, so that the ink attached to the outer peripheral surface of the ink roller 2 is uniformly distributed.

The embodiment of the application discloses a scraping device for a printing machine.

Referring to fig. 2, a wiping arrangement for printing machine includes scraper 3, adjustment mechanism 4 and clearance mechanism 5, and scraper 3 is whole to be rectangular form, and adjustment mechanism 4 includes two cylinders 41 of the same model, and cylinder 41 sets up along the length direction interval of scraper 3, and bolted connection is passed through in the sword dorsal part of scraper 3 to the piston end of cylinder 41. The cleaning mechanism 5 comprises a cleaning piece 51 and a driving component 52, the cleaning piece 51 is arranged at the edge of the scraper 3 in a covering mode, and the driving component 52 drives the cleaning piece 51 to slide along the length direction of the scraper 3. The embodiment of the application aims to reduce the adverse effect of the ink adhered on the scraper blade 3 on the printing quality by arranging the cleaning mechanism 5 so as to scrape off the ink adhered on the scraper blade 3.

Cylinder 41 is fixedly attached to the outer wall of ink tank 1, and the piston end of cylinder 41 penetrates ink tank 1 in the horizontal direction. The inner walls of two opposite sides of the ink box 1 are respectively provided with a sliding groove 11, the sliding grooves 11 are arranged in the sliding grooves 11 in a sliding mode, and two sides of the scraper 3 are arranged in the sliding grooves 11 in a sliding mode. The blade of the scraper 3 is provided with a guide inclined plane 31, and the upper end of the guide inclined plane 31 is closer to the ink roller 2 than the lower end. The two cylinders 41 of the blade 3 push or pull the blade 3 at the same time so that the blade 3 comes close to or away from the ink roller 2, thereby enabling adjustment of the distance between the blade 3 and the ink roller 2. When the printing machine is in operation, the ink roller 2 continuously rotates relative to the ink box 1, the ink in the ink box 1 is coated on the ink roller 2, and the redundant ink on the ink roller 2 can flow back to the ink box 1 along the diversion inclined plane 31.

The driving assembly 52 comprises a screw rod 521 and a driving motor 522 used for driving the screw rod 521 to rotate, the screw rod 521 is arranged in parallel with the ink roller 2, and the cleaning piece 51 is sleeved on the outer peripheral surface of the screw rod 521 and is in threaded fit with the screw rod 521. Two supporting lug plates 32 are welded on the upper surface of the scraper 3, two ends of the screw rod 521 are respectively in running fit with the two supporting lug plates 32 through bearings, and one end of the screw rod 521 penetrates through the supporting lug plates 32. The driving motor 522 is a common servo motor, the lead screw 521 penetrates through the end of the supporting lug 32 and is connected to an output shaft of the driving motor 522, and the driving motor 522 is fixedly installed on the upper surface of the scraper 3. The two ends of the cleaning piece 51 along the axial direction of the screw rod 521 are respectively welded with a protective sleeve 511, and the protective sleeves 511 are in threaded fit with the screw rod 521.

To avoid ink condensation on the blade 3, the printer needs to be shut down and the blade 3 cleaned after running for a certain period of time. Cylinder 41 drives scraper 3 and keeps away from ink roller 2, starts driving motor 522, and lead screw 521 takes place to rotate, and clearance piece 51 slides to the other end of scraper 3 from the one end of scraper 3 along the length direction of scraper 3 to can be before the printing ink is dry, push away the printing ink in the scraper 3 outside to the ink groove in. After the cleaning is completed, the driving motor 522 is rotated in reverse, the cleaning member 51 slides along the doctor blade 3 to the initial position, and the printing press continues to run.

The scraper 3 comprises a convex block part 33 protruding out of the upper surface of the scraper 3, the cross section of the convex block part 33 is rectangular, a guide groove 34 is formed in the upper end of the convex block part 33, the guide groove 34 extends along the length direction of the scraper 3, and the cross section of the guide groove 34 is arc-shaped. The cleaning member 51 is formed with a guide block 512, when the cleaning member 51 is disposed outside the scraper 3, the guide groove 34 is in sliding fit with the guide block 512, and all regions of the guide slope 31 in the width direction thereof abut against the cleaning member 51. A plurality of grease grooves 35 are formed in the guide groove 34, the grease grooves 35 are arranged at equal intervals along the length direction of the guide groove 34, and semisolid lubricating grease is filled in each grease groove 35 in an extruding mode, so that the lubricating effect of the guide block 512 and the guide groove 34 can be improved.

A plurality of water conservancy diversion hole 36 has been seted up to the upper surface of scraper 3, and water conservancy diversion hole 36 runs through scraper 3 along vertical direction, and all water conservancy diversion holes 36 are arranged along scraper 3's length direction equidistant, and water conservancy diversion hole 36 is close to the setting of lug portion 33, and is located one side that lug portion 33 is close to ink roller 2. When the cleaning member 51 cleans the ink on the blade 3, the ink is pushed by the cleaning member 51 to be separated from the blade 3, a part of the ink may flow toward the bump portion 33, and may be finally partially retained at a corner formed by the bump portion 33 and the upper surface of the blade 3, and the diversion hole 36 can divert the part of the ink downward into the ink tank 1.

The implementation principle of the embodiment is as follows: by arranging the cleaning piece 51 and the driving assembly 52, the cleaning piece 51 is arranged outside the cutting edge of the scraper 3 in a covering mode, and the driving assembly 52 drives the cleaning piece 51 to slide along the scraper 3, so that ink attached to the scraper 3 is scraped off, and the adverse effect of the ink attached to the scraper 3 on the printing quality is reduced; by arranging the screw rod 521, the driving motor 522, the guide groove 34 and the guide block 512, the screw rod 521 can drive the cleaning piece 51 to slide along the scraper 3, so that the structure is simple, the implementation is convenient, and the sliding stability is good; by arranging the protruding portion 33, the guide groove 34 is opened on the protruding portion 33, so that ink is prevented from flowing into the guide groove 34 as much as possible, and the guide block 512 can be ensured to slide smoothly in the guide groove 34.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A wiping device for a printing press, characterized by: including scraper (3), be used for the drive adjustment mechanism (4), clearance mechanism (5) that scraper (3) are close to or keep away from ink roller (2), clearance mechanism (5) are including clearance piece (51) and be used for the drive assembly (52) of clearance piece (51) motion, clearance piece (51) cladding in the outside of scraper (3) cutting edge, clearance piece (51) are followed the length direction of scraper (3) slides and is set up.

2. A wiping device for a printing press according to claim 1, characterized in that: the driving assembly (52) comprises a screw rod (521) and a driving motor (522) for driving the screw rod (521) to rotate, the screw rod (521) is parallel to the scraper (3), the cleaning piece (51) is sleeved on the outer side of the screw rod (521), and the cleaning piece (51) is in threaded fit with the screw rod (521); guide way (34) have been seted up in scraper (3), guide way (34) are followed the length direction of scraper (3) extends the setting, be equipped with guide block (512) on clearance piece (51), guide way (34) with guide block (512) sliding fit.

3. A wiping device for a printing press according to claim 2, characterized in that: scraper (3) level setting, scraper (3) are used for the butt the one end of clearance piece (51) is equipped with water conservancy diversion inclined plane (31), guide way (34) are located scraper (3) are kept away from one side of water conservancy diversion inclined plane (31).

4. A wiping device for a printing press according to claim 3, characterized in that: the cleaning piece (51) is coated on the outer side of the whole diversion inclined plane (31).

5. A wiping device for a printing press according to claim 3, characterized in that: the scraper (3) comprises a protruding block part (33) protruding out of the upper surface of the scraper (3), the protruding block part (33) is parallel to the screw rod (521), and the guide groove (34) is formed in the upper end of the protruding block part (33).

6. A wiping device for a printing press according to claim 5, characterized in that: the upper surface of scraper (3) is seted up a plurality of and is run through water conservancy diversion hole (36) of scraper (3), water conservancy diversion hole (36) are followed the length direction interval of scraper (3) is arranged, water conservancy diversion hole (36) are located lug portion (33) are close to one side on water conservancy diversion inclined plane (31).

7. A wiping device for a printing press according to claim 2, characterized in that: a plurality of grease grooves (35) are formed in the guide groove (34), and lubricating grease is filled in each grease groove (35).

8. A wiping device for a printing press according to claim 2, characterized in that: two ends of the cleaning piece (51) along the self-moving direction are respectively provided with a protective sleeve (511), and the protective sleeves (511) are in threaded fit with the screw rods (521).