SU1211097A1 - Device for sheet feed and take-out of printed matter in stencil printing press - Google Patents

Description

The invention relates to a device for depositing and depositing a printing material in a screen printing machine, the printing material being outside the working area of the machine. As such printed material can serve mainly tile materials, in particular printed circuit boards, as well as textile materials, ceramic tiles, foil and flat packaging materials used in the printing industry, as well as flat chassis, front panels, etc. used in the electrical industry and engineering.

It is well known that various systems of the mechanism are used to overlay and lay out the printed material in flat screen printing machines.

From the prospect of the Argon-Hydra screen printing machine from ARGON SERVICE Ltd or from the prospect of the alfa-exakt automatic screen printing machine from Albert Trankent-hai AG, the stationary taler plate is known (also called the base printing plate), and the overlapping and laying out of the printed plate The material is produced in the working area of the machine. A swinging frame with a stencil for printing must be opened wide enough so that the worker can implement laying and laying out. From Svecia-semimatic Ave. of the company Svecia Silsksrem Maskiner, AB is known separately, reciprocatingly intermixing with. A taler board in which printing material can be applied and laid out outside the working area of the machine, however, during the application and laying out, the printing process is interrupted.

The Kammann K 15 DT flat screen printing machine from Werner Kamman Maschinenfabrik has a swiveling taler plate with at least three receivers of printed material, and laying and laying out also occurs outside the working area of the machine.

A disadvantage of such a known device is that, due to the presence of three receivers of printed material, the overlap is complicated and inaccuracies occur during printing. To implement the drive requires too complex technique. In addition, automatic flat screen printing machines are known in which printed material is placed in a stack before printing and is stacked, and it is possible either to feed such a stack to a receiver and send printed material from it on a conveyor ("Kammann K 15 V), or grab the printed material from the stack with a special grab (the Spred-O-tronic machine from The Argon Service)

and feed it to the receiver, and after printing shift it back with grippers from one pile to another, or rewind from one roll to another

uncut textile material or foil (brochure of the company Klemm).

The disadvantage of such a device for automatically superimposing and laying out a printed material is that, due to the system of receiving the printed material, it cannot provide sufficient accuracy of reproducibility of printing, and the device itself can be used only when working with a certain printed material in need in additional trimming after printing characters or the imprint on it is intended only for decorative purposes.

From the GDR patent jYo 129259, cl. In 41 F 15/26, published. 04/13/07 with the name "Method and device for printing on prismatic bodies, a lifting device is known, which printing material in a clamping device installs one of the known well-known hydraulic cylinders directly to the base printing height. The disadvantage is that, however, the transfer of the printed matter to the working area of the screen printing machine must be done manually. In addition, the TRP is required ;; :, HYDROCYLES Zf,

setting the print: the cylinder is at the height of the clip of the 5th v CTpovicrBa, as it may be for; kg; t and is set to the base printing height. In addition, for receiving and attaching printed material on a taler plate, it is well known.

elements such as slotted dowel, pin and vacuum (patent DG, P 126222, cl. B 41 F 5 / o 2, published 06.07.77 “Mechanical device for screen printing), used in most stencil printing machines.

The purpose of the invention is to create a device that allows the implementation of a screen printing machine with overlap SKK; 1.- D printing material beyond;, and the working area, allowing simple laying of products,

mainly printed circuit boards, in taler nlity, and at the same time saving time spent on printing on the already laid and positioned material, as well as reducing the amount of lining to the minimum possible

and guaranteeing accurate typing.

The invention is based on the task of creating in the screen printing machine a device built on the basis of an interchangeable table, the design of which allows convenient printing of printing material onto the taler plate outside the working area of the machine, precisely positioning it for printing, and after printing it is easy to lay it out again while on already

nested and fed into the printing position by the transport device, printing is performed without violating the accuracy of repeatability.

According to the invention, the technical problem is solved by the fact that the device is mounted on a support frame having guiding elements in which receiving frames are located in two planes, each of which is equipped with a floating taler slab, and the receiving frames are interconnected with each other. transfer, and placed in them taler plates can be raised and centered using a lifting mechanism.

The device is mounted on the known coordinate table of the screen printing machine.

Each taler board has special receiving elements for placing the printed material and, with the help of the centering sleeves, is placed in a precisely repeated printing position.

On one taler plate, the receiving elements are positioned relative to each other with the possibility of movement to provide an adjustment point for the aux: alert plates.

The grippers provided on the receiving frames allow the chaining to be moved either by hand or pneumatically or mechanically by the taller plates from one printing position to another or to the laying and laying position. The lifting mechanism consists of a hydraulic cylinder, a pusher, a crank arm and a centering pin.

The device according to the invention provides for laying and laying out the printed material outside the working area of the screen printing machine while simultaneously printing the second material with the required print quality and increased productivity.

The possibility of applying and laying out outside the working area of the machine provides, in addition, a significant relief of labor.

FIG. 1 shows the device, a general view; in fig. 2 - the same, side view.

According to FIG. 1, the device consists of two receiving frames 3 with taler plates 4a, 48, the movement of which is guided in two planes in the support frame 1 by guide elements 2, a chain transmission consisting of chain 5, a small chain sprocket 6 and gripper 7 and according to figure 2 - from the lifting mechanism, recessed into the coordinate table 8.

The known coordinate table 8 is formed by a cross-shaped slide 11, orients with the guide elements 12 on the table plate 9 and is mounted on the table frame 10. The printed material 13 is inserted manually or automatically into the taller plate 4a pushed forward and placed in the adjustable receiving elements 14. .

The movement of the taler plate 4a together with the receiving frame 3 and the material 13 to the 0 position for printing is carried out either manually or by means of a pneumatic or mechanical drive.

In addition, during this movement, under the influence of a chain transmission, the upper plane of the taler plate 40 is fed already with the processed material to the position of insertion and laying out.

In the rear end position, the end Q switch 17 includes the lifting mechanism of the taler plate 4a. A lifting mechanism consisting of a hydraulic cylinder 18, a pusher 19, a crank arm 20, and a centering pin 21, in addition to being raised to the stop rail 15, provides centering in a precisely reproducible printing position.

When reaching the end position, the limit switch 22 starts the further process of working the machine. The oscillating frame 23 moves downward with a printing press 24. The shear mechanism 25 performs the printing motion itself after its release into this position.

After that, the rocking frame 23 with the stencil for printing 24 again rises from the taler plate 4a, and the doctor blade mechanism 25 returns to its original position.

The talern plate 4a is moved by the lifting mechanism back to the lower plane, and from there to the position of laying and laying out again.

In this position, the finished printed material 13 is selected. At this time, a taler plate 4c with material 13 is fed to the printing position.

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The printed marks are applied to the material 13 located on the taler plate 4c, similarly to the first working cycle during the selection of the material 13 located on the taler plate 4a.

 It is recognized as an invention according to the results of the examination carried out by the Office, according to the invention of the German Democratic Republic.

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Claims (3)

1. DEVICE FOR LAYING AND LAYING OUT OF PRINT MATERIAL IN A SILK PRINTING MACHINE, containing tiler plates mounted on the coordinate table, characterized in that it contains a support frame 1 located at one end of the coordinate table, with guide elements 2 and a chain conveyor 4 for moving 4 and a chain transmission 4 in two planes, a lifting mechanism, including receiving frames Za, Zv, connected with the chain transmission, for placing the taler plates 4a, 4b in them, limit switches 17 for interacting with receiving frames 3 a, Sv, associated with the limit switches, the working cylinder 18, the pusher 19, the crank arm 20 and the centering pin 21. 2. The device according to π. 1, characterized in that the tiler plates 4a, 4b have receiving elements 14 for the printed material 13α, 1 Ze and centering sleeves. 3. The device according to π. 1, characterized in that the receiving frames Za, Ze are equipped with grippers 7 connected by a chain transmission. FIG. /