CN201889942U - Squeegeeing device of intaglio press - Google Patents

Abstract

The utility model discloses a scraping device for a gravure printing machine, which includes an electronic display, a programmable controller and a motor connected in sequence, gear c, gear b and gear a with the same structure are sequentially meshed to form a gear train, and gear a and the motor The output end of the worm is connected, the encoder is connected to the gear c, the encoder is also connected to the programmable controller, the gear b is connected to the worm, the other end of the worm is equipped with a hand wheel, and one side of the worm meshes with a fixed on the worm shaft The worm gear on the top is also fixed with a scraper seat on the outer circumference of the worm wheel shaft, and the doctor blade is fixed with a screw on the scraper seat. The ink scraping device of the gravure printing machine of the utility model adopts the motor to drive the gear and the worm gear structure, so as to drive the ink scraper for rapid adjustment and accurate ink scraping; meanwhile, it is equipped with a hand wheel, which can realize manual micro-adjustment at some time.

Description

A scraping device for a gravure printing machine

technical field

The utility model belongs to the technical field of printing machine control and relates to an ink scraping device, in particular to an ink scraping device for a gravure printing machine.

Background technique

When the gravure printing machine is printing, firstly, after the entire printing plate is filled with ink, the ink on the blank part of the surface of the plate cylinder is scraped off with a scraping device, so that the graphic part of the concave part of the layout is inked, and under the action of a certain printing pressure Next, transfer the ink of the graphic part on the plate cylinder to the substrate to complete the printing of the printed matter. In order to ensure the printing quality, there are certain requirements for the scraping device. On the one hand, it is necessary to be able to accurately scrape off the ink on the blank part of the cylinder without damaging the graphics and the surface of the cylinder; on the other hand, it is necessary to be able to quickly and accurately adjust the ink scraping force. Existing gravure scraping devices are generally realized by a scraper device with a simple structure. The adjustment of the scraping force generally needs to be stopped and adjusted manually, and the scraping force is not easy to maintain uniformity. Therefore, a scraping ink device with stable ink scraping force, fast adjustment, convenient and accurate adjustment has important practical significance for improving the quality of gravure printing and improving printing efficiency.

Contents of the invention

The purpose of this utility model is to provide a scraping device for a gravure printing machine, which adopts the structure of a motor to drive gears and worm gears, so as to drive the scraper for quick adjustment and accurate scraping, and solves the time-consuming and laborious adjustment of the scraping device when the shutdown is stopped. And the shortcomings of uneven scraping force.

The technical scheme adopted by the utility model is that a gravure printing machine scraping device includes an electronic display, a programmable controller and a motor connected in sequence, and the gear c, gear b and gear a with the same structure are meshed in sequence to form a gear train , gear a is connected to the output end of the motor, gear c is connected to an encoder, and the encoder is also connected to the programmable controller, gear b is connected to the worm, the other end of the worm is equipped with a hand wheel, and one side of the worm meshes There is a worm wheel fixed on the worm gear shaft, and a scraper seat is fixed on the outer circumference of the worm wheel shaft, and a scraper blade is fixed on the scraper seat by screws.

The ink scraping device of the gravure printing machine of the utility model adopts the motor to drive the gear and the worm gear structure, so as to drive the ink scraper for rapid adjustment and accurate ink scraping; Value, can quickly and accurately change the ink scraping force, solves the shortcomings of adjusting the ink scraping device when the shutdown is stopped, and is equipped with a hand wheel, which can realize manual micro-adjustment at some times.

Description of drawings

Fig. 1 is a schematic structural view of the scraping device of the gravure printing machine of the present invention.

In the figure, 1. electronic display, 2. programmable controller, 3. motor, 4. gear a, 5. scraper blade, 6. screw, 7. scraper seat, 8. worm gear shaft, 9. worm gear, 10. Hand wheel, 11. worm, 12. gear b, 13. gear c, 14. encoder.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The structure of the ink scraping device of the gravure printing machine of the present utility model, as shown in Figure 1, includes an electronic display 1, a programmable controller 2 and a motor 3 connected in sequence, and the gear c13, gear b12 and gear a4 with the same structure mesh in turn to form a gear In the gear train, the gear a4 is connected with the output end of the motor 3, the gear c13 is connected with an encoder 14, the encoder 14 is also connected with the programmable controller 2, the gear b12 is connected with the worm 11, and the other end of the worm 11 is installed with Handwheel 10, one side of worm screw 11 is meshed with the worm wheel 9 that is fixed on the worm wheel shaft 8, also is fixed with scraper seat 7 on the outer circumference of worm wheel shaft 8, is fixed with scraper blade 5 by screw 6 on the scraper seat 7.

The working process of the ink scraping device of the gravure printing machine of the utility model is that, according to the actual situation of the printing plate cylinder, a scraping force value is input on the electronic display screen 1, and the value is transmitted to the programmable controller 2, and converted into the value of the motor 3 through calculation. The number of revolutions, the motor 3 rotates, drives the gear a4 to rotate, the gear a4 drives the gear b12 to rotate, the gear b12 drives the worm 11 to rotate, the worm 11 drives the worm wheel 9 to rotate, and the worm wheel 9 drives the worm shaft 8 to rotate, thereby driving the scraper seat 7 to rotate, scraping ink The blade 5 is close to the surface of the gravure cylinder and provides a certain scraping force to scrape the ink; at the same time, because the geometric structure parameters of the gear a4 and the gear c13 in the gear system are consistent, the gear c13 transmits the rotation number of the motor 3 to the encoder 14. It is recorded that when the predetermined number of turns is reached, the encoder 14 sends a feedback instruction to the programmable controller 2, so that the motor 3 stops running. When the scraping condition needs to be changed during the printing process, only a new value needs to be re-input, and the predetermined target can be achieved quickly and accurately in the above-mentioned way.

When manual micro-adjustment is required, just rotate the hand wheel 10, the hand wheel 10 drives the worm 11 to rotate, the worm 11 drives the worm wheel 9 to rotate, the worm wheel 9 drives the worm shaft 8 to rotate, thus drives the scraper seat 7 to rotate, and the scraper blade 5 is close to the gravure On the surface of the roller, micro-adjust the scraping situation.

Claims (1)

1. an intaglio press is scraped device for ink, it is characterized in that, comprise the electronic console (1) that connects successively, Programmable Logic Controller (2) and motor (3), the gear c(13 that structure is identical), gear b(12) and gear a(4) successively engagement constitute the gear train, gear a(4) output with motor (3) is connected, described gear c(13) is connected with encoder (14) on, encoder (14) also is connected with Programmable Logic Controller (2), described gear b(12) is connected with worm screw (11), the other end of worm screw (11) is equipped with handwheel (10), the side of worm screw (11) is engaged with the worm gear (9) that is fixed on the worm-wheel shaft (8), also be fixed with on the excircle of worm-wheel shaft (8) and scrape tool rest (7), scrape tool rest (7) and upward be fixed with doctor blade (5) by screw (6).

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