DE1760494B2 - Roller carrier for arranging the printing rollers on the frame of a textile printing machine. Elimination from: 1460795 - Google Patents

Description

The invention relates to a roller carrier for arranging the printing rollers on the frame of a textile printing machine, the one back pressure roller mounted in the frame and several outside the Opposite pressure roller has distributed pressure roller bearing pairs on the lower circumference, with one on a movable carriage arranged carrier part on which seats are provided for a number of pressure rollers are where'uci the pressure rollers> a position cricntete with the pressure roller bearing pairs can be raised and can be fastened in the raised position in the pressure roller bearing pairs.

There is a roller carrier of this type known (German patent 822 539), in which common pivotable pivot arms are provided, which the pressure rollers in their mounting position on the frame of the textile printing machine in the area of the lateral circumference of the perfecting roller. This known roller carrier is not able to simultaneously roll on both sides of the perfecting roller to arrange. If you wanted to be on the frame of the textile printing machine on both sides of the perfecting roller Arrange pressure rollers, then it would be inevitable to first place the roller carrier on one Side and then on the other side of the perfecting roller to approach the textile printing machine.

The object on which the invention is based is seen in providing a roll carrier of the above-mentioned To create type of construction, with which all at the same time in one operation at the bottom of the Remove or remove the pressure rollers arranged on the frame of the textile printing machine have other pressure rollers attached there.

According to the invention, this object is achieved in that the carrier is partially cradle-shaped and is displaceable along a vertical guide, the seats of the pressure rollers in the carrier part correspondingly whose position are arranged in the printing machine.

With this configuration according to the invention of a roller carrier of the type mentioned at the beginning it is possible in a particularly simple and expedient manner in a single operation Replace the pressure rollers on both sides of the vertical longitudinal center plane of the perfecting roller are arranged in the area of the lower circumference.

A roller carrier with a cradle-shaped carrier part is already known (Austrian Patent specification 221467), but this is not vertical can be raised, rather the local roll carrier must be from the side in the direction of the axis of rotation The perfecting roller can be retracted into the frame of the textile printing machine. This requires a complicated and unusual, at the same time time-consuming

ao design of the frame or frame of the textile printing machine, as there is space for the mobile carriage in the area of the support posts of the textile printing machine must be created on which the carrier part is arranged.

The invention and its advantageous embodiment is shown below with reference to one in the drawing illustrated embodiment explained in more detail.

It shows

F i g. 1 a roller carrier according to the invention and a textile printing machine, on the framer. Print rollers are to be arranged or replaced, in a diagrammatic view,

F i g. FIG. 2 shows a side view of the roller carrier according to FIG. 1 in the upward extended position.

The conventional textile printing machine shown has a frame 2 in which a shaft 4 rotatably supports the perfecting roller 6, around which an undercloth 8 is placed. A chain wheel 10 and a chain 12 set elements (not shown) in the superstructure of the machine in motion. Outside the impression roller 6 and substantially along the lower half of the circumference thereof, the frame 2 has a number of pressure roller bearing pairs 14 , each pair of which is intended for rotatably supporting an engraved tubular pressure roller 16 of generally cylindrical shape. All of these pressure rollers 16 are transported on a roller carrier 18 .

Other common elements of the textile printing machine are not shown for the sake of clarity, e.g. B. the main gear and the fitting gear for driving the individual printing rollers 16.

In Fig. 1, the pressure roller bearing pairs 14 are shown with their details. Each pair has a fitting sleeve 20 which is slidably mounted on a U-shaped support arm 22 of the frame 2 and which is displaceable relative to the perfecting roller 6 by means of a lead screw 24. When the fitting sleeve 20 is withdrawn, one of the shorter upper leg of the support arm is

Sun, 22 educated access slot 23 open for the passage of elements. As can be easily seen, the fitting sleeves 20, the U-shaped support arms 22 and the guide screws 24 are used to clamp the pressure rollers 16 in their operating positions.

The roller carrier Ui has a carriage 142 with two posts 144 stiffened by diagonal struts 146 , which can be moved on wheels 148 and rails 149 . A carrier part is on the carriage 142

150 arranged, on which seats 158 for a number of pressure rollers 16 are provided in a cradle-like section 156. The pressure rollers 16 can be raised into a position aligned with the pressure roller bearing pairs 14 and can be fastened in the raised position in the pressure roller bearing pairs 16.

According to the invention, the support part 150 is cradle-shaped and can be displaced along a vertical guide; Furthermore, the carrier part 150 essentially surrounds the lower half of the perfecting roller 6 in the raised position.

In the exemplary embodiment shown, the guide is formed by posts 144 , the carrier part 150 being vertically displaceable on the post 144 by means of pairs of rollers 152 connected to one another and having a base 154 .

The carrier part 150 advantageously has a coating 160 made of rubber-elastic material over the roller seats 158 in order to avoid damaging the surface of the pressure rollers 16. In addition to rubber, vinyl plastisol has proven itself as a material for this purpose.

The vertical displacement of the support part 150 is carried out by a hydraulic jack with a vertical cylinder 162 mounted on the carriage 142 and a piston with piston rod 164 which is reciprocable in this cylinder and which engages at its free upper end on diagonal struts 166 of the base 154. If pressure medium is passed from a reservoir 168 through a line 169 into the pressure chamber of the cylinder 162 , namely after a pump motor 170 has been actuated by a push switch 172, the piston rod 164 is extended and the carrier part 150 is thus raised.

After the carrier part 150 has been raised , the three-position switch 172 is brought into its neutral position, in which a corresponding valve for the line 169 is closed and the motor pump 170 is thus switched off. The carrier part 150 is lowered by simply moving the three-position switch 172 to its third position, in which the valve for the line 169 opens and the weight of the carrier part 150 pushes the pressure medium back into the reservoir 168.

In operation, the pressure rollers 16 are moved into the roller seats 158 of the WaI- corresponding to the desired position on the circumference of the perfecting roller 6 for the purpose of executing the desired printing pattern.

centric carrier 18 placed. In the initial position, the fitting sleeves 20 are moved away from the perfecting roller 6 in order to open the access slots 23 in the support arms 22. The roller carrier 18 is then moved under the perfecting roller 6 and the three-

Position switch 172 brought into the position in which the valve for the line 169 is opened and the motor pump 170 is started in order to conduct pressure medium into the cylinder 162 and to raise the carrier part 150 until the axes of the pressure rollers 16 are with

ao the various printing roller bearing pairs in relation to are aligned for direction and height.

The three position switch 172 is then moved to its neutral position to set the pressure rollers 16 to the desired position as the procedure proceeds

Able to hold. The printing roller ends are then installed in the printing roller bearing pairs by means of special facilities not shown.

After the assembly of the various pressure rollers 16 on the frame 2 of the textile printing machine

the three-position switch 172 on the roller carrier 18 is actuated in order to open the valve of the line 169 and thus lower the carrier part 150. Then the roller carrier 18 is moved away from the frame 2 on the rails 149. The respective pressure

roller mounting kits are then tightened using a wrench or other tool to ensure a snug fit. The guide screws 24 are tightened in order to press the pressure rollers 16 against the underlying blanket 8.

1 sheet of drawings

Claims (2)

Patent claims: 1. Goods carrier for arranging the printing rollers on the frame of a textile printing machine, which has a perfecting roller mounted in the frame and several printing roller bearing pairs distributed outside the perfecting roller on its lower circumference, with a carrier part arranged on a movable carriage, on which seats are provided for a number of printing rollers , wherein the pressure rollers can be raised into a position aligned with the pressure roller bearing pairs and can be fastened in the raised position in the pressure bracket bearing pairs, characterized in that the carrier part (150) is cradle-shaped and can be displaced along a vertical guide (144) , the seats (158) the printing rollers (16) are arranged in the carrier part (150) according to their position in the printing machine. 2. Roller carrier according to claim 1, characterized in that the carrier part (150) has a coating (160) made of rubber-elastic material over the roller seats (158) .