Printing machine scraping device

Abstract

The utility model discloses a printing machine scraping device which comprises a scraping installation frame, a rotating shaft is rotatably installed on the scraping installation frame, a rotating plate is fixedly connected to the rotating shaft in a sleeved mode, a scraping plate is installed on the rotating plate through an extrusion fine adjustment assembly, a printing roller is arranged on one side of the scraping installation frame, and the scraping plate makes contact with the printing roller. A support is fixedly installed at the bottom of the scraping installation frame, a scraper cleaning block is installed on the support through a compression assembly, the scraper cleaning block is matched with the scraper, and the scraper arranged on the scraping device of the printing machine can scrape redundant printing ink or coating from a printing roller so as to guarantee the printing quality and reasonable utilization of the printing ink. The arranged extrusion fine adjustment assembly enables the scraper to make contact with the side portion of the printing roller all the time, a telescopic air cylinder of the rotation driving assembly operates to drive the scraper to rotate, the end of the scraper makes contact with a scraper cleaning block, residual ink on the scraper is wiped, and the follow-up scraping operation of the scraper on the printing roller is prevented from being affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing machine scrapes material technical field especially relates to a printing machine scrapes material device. BACKGROUND

[0002] Gravure printing is that the whole printing plate surface is coated with ink, the text part of the printing plate is concave, and the concave degree is different with the level of the image, the blank part of the printing plate is convex, and then the ink of the blank part is removed completely by the special scraping mechanism, so that the ink is only reserved in the text part of the net hole, and the ink is transferred to the surface of the printing material under the action of the larger pressure to obtain the printed matter, and the printing machine scrapes material refers to that the excess ink or paint is scraped from the printing roller by the scraper device to ensure the printing quality and the reasonable use of the ink.

[0003] During the process of scraping the printing roller by the scraper, a large amount of ink is stored on the surface of the scraper due to long-term scraping, the residual ink is accumulated on the surface of the scraper, the scraper cannot effectively scrape the excess ink on the printing plate, and printing defects such as dirt, ink running, wire and line occur, or the residual ink on the scraper may affect the normal transfer of the ink, so that the color of the printed matter is uneven or color difference occurs, in order to solve the above problems, the traditional way is to disassemble the scraper, but the disassembly of the scraper is inconvenient, and the time is relatively long, therefore, the printing machine scrapes material device is provided. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides a printing machine scrapes material device for solving the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A printing machine scrapes material device, including the scrapes material mounting bracket, the scrapes material mounting bracket rotates and installs the rotating shaft, the rotating shaft is fixedly sleeved with the rotating plate, the rotating plate is installed with the scraper through the extrusion fine adjustment assembly, one side of the scrapes material mounting bracket is provided with the printing roller, the scraper is in contact with the printing roller, the bottom of the scrapes material mounting bracket is fixedly installed with the support, the support is installed with the scraper cleaning block through the compression assembly, the scraper cleaning block is matched with the scraper, the scrapes material mounting bracket is provided with the rotary drive assembly, and the rotary drive assembly is connected with the rotating shaft.

[0007] Preferably, the extrusion fine adjustment assembly includes an adjusting groove opened in the side of the rotating plate, the side of the scraper is fixedly installed with an adjusting block, one side of the adjusting block extends into the adjusting groove, and an extrusion spring is fixedly installed between the side of the adjusting block and the inner wall of the adjusting groove.

[0008] Preferably, limit grooves are arranged on the inner walls of the two sides of the adjusting groove, and limit blocks are fixedly installed on the two sides of the adjusting block and slidably installed in the limit grooves.

[0009] Preferably, the compression assembly comprises a fixed block fixedly installed on the support, and a compression rod is fixedly installed at the bottom of the scraper cleaning block and telescopically installed on the fixed block.

[0010] Preferably, a compression groove is arranged at the top of the fixed block, one end of the compression rod extends into the compression groove, and a compression spring is fixedly installed between the end of the compression rod and the inner wall of the compression groove.

[0011] Preferably, the rotary driving assembly comprises a telescopic cylinder fixedly installed on the side of the scraper mounting frame, a rack is connected to the output end of the telescopic cylinder, and a rotating gear is fixedly sleeved on the rotating shaft and engaged with the rack.

[0012] Preferably, arc-shaped surfaces are arranged on the two sides of the scraper cleaning block, and a cleaning cloth is installed at the top of the scraper cleaning block.

[0013] Compared with the prior art, the printing machine scraping device has the beneficial effects that: the scraper can scrape off the excess ink or paint from the printing roller to ensure the printing quality and the reasonable use of the ink, the extrusion fine adjustment assembly is arranged to make the scraper always contact the side of the printing roller, the telescopic cylinder of the rotary driving assembly is operated to drive the scraper to rotate, the end of the scraper contacts the scraper cleaning block to wipe the residual ink on the scraper, and the subsequent scraping operation of the scraper on the printing roller is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the left side observation solid of the utility model;

[0015] Figure 2 It is a structure schematic view of the right side observation solid of the utility model;

[0016] Figure 3 It is a structure schematic view of the utility model in section;

[0017] Figure 4 It is a structure schematic view of the utility model in part explosion;

[0018] Figure 5 It is a structure schematic view of the utility model in local explosion.

[0019] In the figure: 1, scraper mounting frame; 2, rotating shaft; 3, rotating plate; 4, adjusting groove; 5, adjusting block; 6, limiting groove; 7, limiting block; 8, extrusion spring; 9, scraper; 10, printing roller; 11, telescopic air cylinder; 12, rack; 13, rotating gear; 14, support; 15, fixed block; 16, compression groove; 17, compression rod; 18, compression spring; 19, scraper cleaning block; 20, arc surface; 21, cleaning cloth. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Embodiment: refer to Figures 1-5 A printing machine scraper device, including scraper mounting frame 1, rotating installation has rotating shaft 2 on scraper mounting frame 1, rotating shaft 2 is fixedly sleeved with rotating plate 3, and scraper 9 is installed on rotating plate 3 by extrusion fine adjustment assembly, one side of scraper mounting frame 1 is provided with printing roller 10, scraper 9 is in contact with printing roller 10, printing roller 10 is adhered with ink, at this time, scraper 9 is in contact with printing roller 10, and the excess ink or paint is scraped from printing roller 10 by scraping of scraper 9, so as to ensure printing quality and reasonable use of ink, and the bottom of scraper mounting frame 1 is fixedly installed with support 14, scraper cleaning block 19 is installed on support 14 by compression assembly, scraper cleaning block 19 is matched with scraper 9, and rotating drive assembly is arranged on scraper mounting frame 1, and rotating drive assembly is connected with rotating shaft 2.

[0022] Specifically, the extrusion fine adjustment assembly includes adjusting groove 4 opened in the side of rotating plate 3, adjusting block 5 is fixedly installed on the side of scraper 9, one side of adjusting block 5 extends into adjusting groove 4, extrusion spring 8 is fixedly installed between the side of adjusting block 5 and the inner wall of adjusting groove 4, limiting groove 6 is opened on the inner wall of adjusting groove 4 on both sides, limiting block 7 is fixedly installed on both sides of adjusting block 5, limiting block 7 is slidingly installed in limiting groove 6, extrusion spring 8 on the extrusion fine adjustment assembly provides extrusion degree, so that scraper 9 is always in contact with the side of printing roller 10, scraper 9 is obliquely arranged and in contact with printing roller 10, so as to ensure uniform distribution of ink, limiting block 7 moves in limiting groove 6, and the moving interval of limiting groove 6 is controlled within a certain range.

[0023] Specific, rotating drive assembly includes fixedly installed in the side of the material scraping mounting frame 1 telescopic cylinder 11, the output end of telescopic cylinder 11 is connected with rack 12, rotating shaft 2 is fixedly sleeved with rotating gear 13, rotating gear 13 is engaged with rack 12, after a long time scraping of scraper 9, there will be more residual ink on the scraper 9, at this time, start the telescopic cylinder 11 on the rotating drive assembly to run, drive rack 12 to move, under the driving action of rotating gear 13, drive rotating shaft 2 to rotate, rotating shaft 2 rotates drive rotating plate 3 to rotate, the scraper 9 will follow the rotation, the two sides of the scraper cleaning block 19 are provided with arc surface 20, the top of the scraper cleaning block 19 is provided with cleaning cloth 21, when the end of the scraper 9 contacts with the scraper cleaning block 19, the arc surface 20 provided on the scraper cleaning block 19 can wipe the residual ink on the scraper 9, the cleaning cloth 21 can effectively wipe the ink, the arc surface 20 is provided with two surfaces, which can effectively clean the ink on the scraper 9.

[0024] Specific, the compression assembly includes a fixed block 15 fixedly installed on the support 14, the bottom of the scraper cleaning block 19 is fixedly installed with a compression rod 17, the compression rod 17 is telescopically installed on the fixed block 15, the top of the fixed block 15 is provided with a compression groove 16, one end of the compression rod 17 extends into the compression groove 16, the compression spring 18 is fixedly installed between the end of the compression rod 17 and the inner wall of the compression groove 16, the compression assembly is provided to provide a certain pushing force for the scraper cleaning block 19, to ensure that the scraper cleaning block 19 contacts with the scraper 9, and better cleaning.

[0025] In the process of printing, the scraper 9 contacts with the printing roller 10, and the excess ink or paint is scraped from the printing roller 10 by the scraper 9, so as to ensure the printing quality and reasonable use of ink, the extrusion spring 8 is provided to provide extrusion force, so that the scraper 9 is always in contact with the side of the printing roller 10, the telescopic cylinder 11 is started to run to drive the rack 12 to move, the rotating shaft 2 rotates to drive the rotating plate 3 to rotate, the scraper 9 will follow the rotation, when the end of the scraper 9 contacts with the scraper cleaning block 19, the arc surface 20 provided on the scraper cleaning block 19 can wipe the residual ink on the scraper 9, to avoid affecting the subsequent scraping operation of the scraper 9 on the printing roller 10, and the use is convenient.

[0026] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A scraper device for a printing press, comprising a scraper mounting frame (1), characterized in that, A rotating shaft (2) is rotatably mounted on the scraper mounting frame (1), and a rotating plate (3) is fixedly sleeved on the rotating shaft (2). A scraper (9) is mounted on the rotating plate (3) through a squeezing fine-tuning component. A printing roller (10) is provided on one side of the scraper mounting frame (1), and the scraper (9) is in contact with the printing roller (10). A bracket (14) is fixedly mounted on the bottom of the scraper mounting frame (1), and a scraper cleaning block (19) is mounted on the bracket (14) through a compression component. The scraper cleaning block (19) is adapted to the scraper (9). A rotating drive component is provided on the scraper mounting frame (1), and the rotating drive component is connected to the rotating shaft (2).

2. The printing press scraping device according to claim 1, characterized in that, The compression fine-tuning assembly includes an adjustment groove (4) opened on the side of the rotating plate (3), an adjustment block (5) is fixedly installed on the side of the scraper (9), one side of the adjustment block (5) extends into the adjustment groove (4), and a compression spring (8) is fixedly installed between the side of the adjustment block (5) and the inner wall of the adjustment groove (4).

3. The printing press scraping device according to claim 2, characterized in that, Limiting grooves (6) are provided on the inner walls of both sides of the adjusting groove (4), and limiting blocks (7) are fixedly installed on both sides of the adjusting block (5). The limiting blocks (7) are slidably installed in the limiting grooves (6).

4. The printing press scraping device according to claim 1, characterized in that, The compression assembly includes a fixed block (15) fixedly mounted on a bracket (14), and a compression rod (17) fixedly mounted on the bottom of the scraper cleaning block (19). The compression rod (17) is telescopically mounted on the fixed block (15).

5. A printing press scraping device according to claim 4, characterized in that, The top of the fixing block (15) is provided with a compression groove (16), one end of the compression rod (17) extends into the compression groove (16), and a compression spring (18) is fixedly installed between the end of the compression rod (17) and the inner wall of the compression groove (16).

6. A printing press scraping device according to claim 1, characterized in that, The rotary drive assembly includes a telescopic cylinder (11) fixedly installed on the side of the scraper mounting frame (1). The output end of the telescopic cylinder (11) is connected to a rack (12). A rotating gear (13) is fixedly sleeved on the rotating shaft (2). The rotating gear (13) meshes with the rack (12).

7. A printing press scraping device according to claim 1, characterized in that, The scraper cleaning block (19) has arc-shaped surfaces (20) on both sides, and a cleaning cloth (21) is installed on the top of the scraper cleaning block (19).

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