JPS58166051A - Coating solution supplying device to gravure printing cylinder - Google Patents

Abstract

PURPOSE:To eliminate a coating solution reservoir and to stably coat the solution by supplying the solution between a blade pressed at the body on the surface of a printing cylinder and the cylinder and removing by a doctor the excess solution from the surface of the cylinder. CONSTITUTION:A blade B0 which is mounted on a blade holder 11 is approached through a slide plate 20 to the peripheral surface of a printing cylinder 2 by the rotation of a pinion 22 which is driven by a hydraulic motor or the like, the relative position is adjusted by a regulating screw 13, and an ink pan 15 is raised to the prescribed position. Then, the ink is supplied through a hose 17 onto the blade B0, the cylinder 2 is rotated, a supporting plate 10 is rotated by an air cylinder 26 around a shaft 19, thereby urging the blade B0 under the prescribed pressure onto the surface of the cylinder, and ink is sufficiently supplied into a cell. Excess ink on the surface of the cylinder is scraped by a doctor blade 7 and recovered by the ink pan 15. Accordingly, it is not necessary to always store the ink in the pan, thereby rapidly facilitating the work at the print switching time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for supplying a coating liquid (ink, adhesive, etc.) to a gravure plate cylinder.

Conventionally, a coating liquid has been supplied to a gravure plate cylinder by a pouring method, a furniture method, or the like.

In the pouring method, the plate cylinder is directly immersed in the inlet and a coating liquid tube is supplied to the plate surface, while in the furnisher method, the coating liquid in the nozzle is applied to the plate surface via a roller.

In these methods, in addition to the necessary coating liquid to be applied to the original fabric, an extra coating liquid is required to fill a certain amount of TIC, and the coating liquid accumulated at the end of printing is also required. It took a long time to drain the liquid.

In order to solve these problems, for example, in Dalapia printing, a method has been considered in which ink is supplied onto a doctor blade that scrapes off the ink to create a puddle, and the doctor blade also serves as an ink application section.However,
In the Kalo ink supply device, since the distance between the doctor and the ink transfer portion to the original fabric is long, the inside of the ink dries and the ink transfer to the original fabric is not sufficient. Therefore, such a supply device could only be applied to a specific type of printed matter. In view of this, the present invention eliminates the need for a reservoir of coating liquid in the tank, and enables sufficient supply of coating liquid to the plate surface. An object of the present invention is to provide a coating liquid supply device to a gravure plate cylinder, which enables stable printing or coating.

Embodiments of the present invention will be described below with reference to the drawings.

#I In Figures I1 and 2, a notch 1a is formed in the horizontal direction in the side frame 1 (one side of which is shown in the figure), and the axial bearing of the copper plate 2 is placed in this notch la. In edition 1i12, in which 3 is retained,
The impression cylinder 4 is brought into contact with this.

The impression cylinder 4 is rotatably held in a bearing case 5 provided inside the side frame l.

A raw fabric 6 is supplied between the first printing cylinder 2 and the impression cylinder 4.

On the opposite side of plate #742, which is close to the impression cylinder 4, there is a doctor blade 7 for scraping off excess ink on the surface of the plate cylinder.
is supported by the holder 8.

One ink supply device QF of the present invention is installed for each original sheet discharged for plate $2.
i A rotatable support plate 10, a blade holder 11 mounted on this support plate 1O so as to be slidable in directions toward and away from the surface of the plate cylinder, and a blade made of an elastic material supported by this blade holder 11. B0, an applicator 12 fixed to an appropriate position of the blade holder 11 for supplying an ink tube onto this blade drawer 0, and a blade holder 1.
1 on the support plate lo, and a support plate support mechanism 14 that supports the support plate lO in a vertically movable manner.

The plate 1] 1i12 is provided with an ink hole 15 for collecting the ink that has fallen from the plate IM2, and an outlet hole I6 is formed at an appropriate position in the ink hole 15. .

Said blade B. The belly portion 1 is pressed against the plate cylinder 2 with sufficient pressure, and its cross section is curved in an arc shape. By press-contacting the plate portion 1 of the blade B0 in this way, the ink on the blade B0 is completely injected into the cells of the plate cylinder 2, ensuring highly accurate printing quality. Grade B0 goods. It is preferable to use an elastic member, such as a planer plate, with a thickness dVi of 0.4-0-5 m.
Projection length of WLm blade B0 from holder 11 L F
As a result of experiments, it has been found that the contact pressure P of the blade B0 to the plate cylinder 2 is preferably 0.15 to 0.2 h/cllL.

Further, a hose 17 connected to an ink supply boss (not shown) and a filter is connected to the applicator 12, and the applicator 12 #i can be attached to and detached from the holder 11 with a single touch by a quick and cranometric mechanism (not shown). The holder 11 is also held on the support plate IO by a one-touch quick/cling mechanism (not shown). It is preferable to make the holder 1lFi from aluminum.There are female screws 1 at appropriate positions on the front end of the support plate 10.
8 is fixed, an adjustment screw 113 is attached to this female screw 18, and this adjustment screw 13 is screwed into the holder 11. By rotating the adjustment screw 13, the It is now possible to make small adjustments to the position of the

A rotary shaft 19 is formed protrudingly from the left and right ends of the support plate 10, and this rotary shaft 19 is rotatably supported at the upper end of the slide base.
11 of them. The guide plate 21 is fixed at an angle and is slidably held in the vertical direction by a companion guide plate 21.

A rectangular frame 28a is formed on the square plate φ, and a KFi pinion section is housed within this window 20a, and this pinion 4 is attached to a rack 23 formed on the side wall of the window 20m! lc is engaged. The pinion 22Fi is fixed to a shaft 24, and this shaft 24 extends to the outside of the side frame l, and its actual protruding end is connected to a drive source such as an explosion-proof motor or a hydraulic motor through a shaft (not shown).

An air cylinder with one end fixed to a fixing member (not shown) is attached to the left and right ends of the lower surface of the support plate 10 via arms 25, and the expansion and contraction of the air cylinder causes the support plate 10 to rotate around the rotation axis. It rotates around 17 so that the contact pressure of the blade B0 against the plate FI42 can be adjusted.

Next, we will discuss how to operate this device.

1 and 2 show the state of the printing press at the time of printing, and before starting printing, the support plate lO of the ink supply tct9 is shown.
is located below the position shown in the figure. 1, and the cleaning is completed on the support plate 10 located below.
Blade holder 111 that holds B0 can be installed with one touch, and blade boulder - 1l! /Ca! 9. Attaching the cage 12 3. Next, a drive source such as a hydraulic motor provided outside the side frame 1 is driven to rotate the pinion ρ via the shaft 24. As the pinion n rotates, the slide root circumference rises, and the blade B. is version HI4
When the pinion reaches a predetermined position close to the phase 2, the rotation of the pinion is stopped. In this case, the predetermined position of the blade B0 can be determined from the equal pressure of a pointer (not shown) provided at an appropriate position on the support mechanism 14. After adjusting the relative position between the blade B0 and the plate cylinder surface by rotating the adjusting screw 13, the spare ink 9 that has been cleaned is
The engine 15 is raised to a predetermined position shown in FIG. 1 by a lift support mechanism (not shown).

Thereafter, the ink supply pong is rotated to supply ink onto the blade drawer 0 through the hose 17.

After confirming that the ink has been supplied onto the blade B, the base 1ji12 is rotated, the air cylinder A is extended, the support plate 10 is rotated about the shaft 19, and the blade B is moved. is pressed against the plate cylinder surface with a predetermined pressure. At this time, the belly portion 1 of the V-dope B0 is pressed against the plate cylinder surface, so that sufficient ink is supplied to the inside of the cell.

When printing is completed, the air cylinder is shortened and the support plate 10 is moved nine times so that the blade B0 is separated from the surface of the plate 1j11. At the same time, the rotation of the ink supply ink is stopped, and the ink supply onto the blade B is stopped. Next, in order to clean the blade holder 11 and the applicator 12, the support plate 10 and the blade holder 11 are removed 7't61 with one touch, and the ink cylinder 15 and the support plate 10 are lowered by actuation of their respective support mechanisms.

In this case, since the ink cartridge 15 has a structure that is inclined toward the discharge hole 16, there will be no residual ink trapped inside the ink container 15, unlike the conventional method. 9. It is unnecessary to replace the ink and remove the ink from the mother tube. Print preparation time is significantly reduced.

In addition, as shown in FIG. 3, an applicator support plate 30 is provided in the vicinity of the first edition yjA2 so as to be movable up and down, the applicator 12 is attached to this support plate, and the blade B is tilted at a predetermined angle. Renoder: (HC installation, air: 1st plate #1 of cylinder 31 is used to cut the belly part of blade B1 into plate 1
It may be pressed to lIIIi. Also, air cylinder 3
1, the blade B may simply be supported by an elastic member such as a six-ring ring.

The above embodiments are applied to printing by a gravure printing machine, but the same configuration can be applied to the application of liquids other than adhesive and ink. Because of this structure, it is not necessary to constantly store the coating liquid in the chamber 9) as in the past, which not only makes the work faster and easier when switching between prints, but also allows the belly part of the blade to press against the plate cylinder surface. As a result, the application of the coating liquid to the plate 1111 is complete, and the coating liquid does not dry out during the transfer of the coating liquid from the coating liquid supply part to the original fabric, resulting in a good ink, adhesive, etc. This has the effect that the coating can be applied.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the coating liquid supply device of the present invention;
FIG. 2 is a view in the direction of the arrow in FIG. 1, and FIG. 1113 is an explanatory diagram corresponding to FIG. 2 showing another embodiment of the present invention. 2...Print cylinder. 4...Oppression, 7...Doctor blade, 9...Ink supply device. 10... Support plate, 11... Blade holder. 14...Support plate support mechanism. 15...Ink/#n, Add...Slide &. j...Air cylinder. Outgoing Agent Ino Mata Clearance 1 Forgery 2 Closed

Claims (1)

[Scope of Claims] 1. A blade supported in a direction along the axis of a gravure plate copper and whose belly portion is pressed against a plate cylinder 1iK, and a coating liquid supply device that supplies a coating liquid to the connection between the blade and the plate cylinder. and a mechanism for pressing the belly portion of the blade into contact with the plate surface, and a doctor for removing the excess coating liquid supplied to the hoisting rope at the blade from the plate surface. Coating liquid supply device to the gravure plate cylinder. 2. The blade is made of an elastic material. 3. The mechanism that presses the belly portion of the blade into contact with the plate surface is an air cylinder! -9 Hydraulic cylinder, spring or f-m Claim 5tR1
In the prosthetic mounting unit 4 described in item 1 or 2, the mechanism for pressing the belly portion of the blade into contact with the plate surface is composed of a rotation shaft of the blade and a weight 9 for forcibly rotating around the scissor support shaft. An apparatus according to claim 1 or 2, characterized in that: