CZ30053U1 - Swivel positioning table of printing machine for printing gate panels - Google Patents

Description

Technical field

The technical solution relates to a rotary positioning table of a printing machine for printing door panels, especially for sectional garage and industrial doors.

BACKGROUND OF THE INVENTION

Industrial large format printing machines are known which allow high quality and fast printing of almost any material, such as wood, glass, paper, sheet metal, etc., by inkjet printing and UV curing. Print data is prepared here in various graphics programs and then sent to the printing machine. These machines are used in printers, graphic and advertising studios, producers of glass products and for printing various sheets, veneers, etc. Machines have different numbers of print heads with different numbers of colors. They also vary in size depending on how large the materials are printed with them. However, all of these machines allow printing only perpendicular to the print material, with their nozzles always spraying the ink straight down towards the print material.

In view of the need to print door panels, the printing machines currently on the market exhibit the following drawbacks. There is no printing machine capable of printing material of the dimensions necessary for the manufacture of the door, i.e. about 7500 mm long, while in said machines spraying ink perpendicular to the material, there is an unprinted lower edge (perpendicular surface) of the door panel which is looking at garage from outside to see. The printed motif (for example wood) would be interrupted by strips of substrate material, which would spoil its overall impression. Existing printing machines are not equipped with a paint box, which is expected to be installed in the proposed equipment. Here, a layer of clear varnish will be applied to the printed panels, which will protect the printed motif and the door against the effects of the sun and the weather in the long term.

The essence of the technical solution

These drawbacks are largely overcome by a printing machine equipped with a rotary positioning table for printing door panels, according to the present invention, which consists of a base structure in whose upper horizontal beams the rotary positioning table shaft is rotatably provided with a pivoting mechanism. Perpendicular to the shaft of the rotary positioning table are mounted parallel support arms of the rotary positioning table on which the printed material is deposited. Clamping elements are arranged between the receiving arms for clamping the printed material.

According to a preferred embodiment, the pivoting mechanism is formed by a rod provided at both ends with self-lubricating ball bearings, the upper end of the rod being rotatably mounted at the end of one of the bearing arms of the rotary positioning table. The lower end of the tie rod is also rotatably attached to a slider that is attached to a toothed belt located at the bottom of the foundation structure. The toothed belt is wrapped on two pulleys, the rear of which is connected via a shaft to a motor arranged to rotate the rotary positioning table to the desired position.

According to a further preferred embodiment, the pivoting mechanism comprises a motor arranged to rotate the rotary positioning table to a desired position, the body of which is fixed to the foundation structure. The motor shaft is directly connected to the shaft of the turntable.

According to yet another preferred embodiment, the pivoting mechanism also comprises a motor for pivoting the rotary positioning table to the desired position, the body of which is fixed to the foundation structure. However, the motor shaft is provided with a toothed pulley. It is connected by means of a toothed belt to a toothed pulley mounted on a shaft of a rotary positioning table.

It also seems advantageous if the clamping elements are vacuum suction cups. However, the clamping elements may also be magnetic or mechanical elements. For the overall function of the device, the operation of the rotary indexing table to the desired position is controlled electronically.

The present technical solution differs from the known solutions on the market mainly in the unique way of tilting the door panels during printing. The device allows you to print any motif on the entire face side, including edges, whether it be a combination of colors or any wood imitation. Furthermore, it will be possible to transfer to the printed material any motif to which the customer supplies graphic materials. The cost of printing will be lower than the cost of painting and covering the panels with foil.

Clarification of drawings

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a rotary positioning table of a printing machine for printing door panels, the rotation of which is secured by a lever mechanism arranged between the motor, to rotate the rotating positioning table to the desired position, and this rotating positioning table. . FIG. 2 shows the same rotary positioning table, the shaft of which is directly coupled to a motor shaft arranged to rotate the rotary positioning table to the desired position. The same rotary positioning table is also shown in Fig. 3, wherein the motor arranged to rotate the rotary positioning table to the desired position is here connected to the rotary positioning table shaft by a toothed belt wrapped over toothed pulleys mounted on the motor shaft and the rotating positioning table shaft.

Examples of technical solutions

The rotary positioning table 3 of the printing machine for printing door panels according to FIG. 1 consists of a base structure 1, in whose upper horizontal beams 2 a shaft 5 of the rotating positioning table 3 provided with a pivoting mechanism is rotatably arranged. Perpendicular parallel bearing arms 4 of the turntable 3 are mounted on the shaft 5 of the turntable 3 on which the printed material is deposited. Between the receiving arms 4 are arranged clamping elements for clamping the printed material on the turntable 3, in this case vacuum suction cups 6. In the variant shown in Fig. 1, the pivoting mechanism has a lever-like character, consisting of a rod 8 provided on the The upper end of the rod 8 is rotatably mounted at the end of one of the bearing arms 4 of the turntable 3. The lower end of the rod 8 is also rotatably mounted to a slider U which is attached to a toothed belt JO located at the bottom of the foundation. The toothed belt JO is wrapped on two pulleys 12, 12 '. of which the rear roller 12 'is connected via a lower shaft 13 to a motor 7 arranged to rotate the rotary positioning table 3 to the desired position. The rotary positioning table 3 serves to rotate the printed material at different angles according to the type or shape of the material in question so that it can also be printed from the edge (perpendicular to the horizontal surface) of the material.

As already mentioned above, in the second variant shown in Fig. 2, the pivoting mechanism consists of a motor 7 arranged to rotate the rotary positioning table 3 to the desired position, the body of which is fixed to the foundation structure 1. The motor shaft 7 is directly connected therewith shaft 5 of the rotary positioning table 3.

In the variant according to FIG. 3, the pivoting mechanism also comprises a motor 7 for pivoting the rotary positioning table 3 to the desired position, the body of which is fixed to the foundation structure.

The motor shaft 7 is, however, provided with a toothed pulley 15 which is connected via a toothed belt 14 to a toothed pulley 11 mounted on a shaft 5 of the rotary positioning table 3.

After the printing of the printed material with the edges, in particular the door panels for sectional garage or industrial doors, on the upper surfaces of the arms 4 of the turntable 3 and subsequent clamping of the printed material by vacuum suction cups 6 (or magnetic or mechanical clamping) by means of any of the aforementioned pivoting mechanisms driven by an electronically controlled motor 7 to the desired one

Position U1. The rotary positioning table 3 is rotated therein at different angles, relative to the basic horizontal plane, according to the type and shape of the material to be printed in the printing machine.

Industrial applicability

The turntable positioning table can be industrially used especially for door panel printing, where it is desirable to print even the side edges of segments that would otherwise interfere with the overall color of the door appearance.

PROTECTION REQUIREMENTS

Claims (7)

A rotary positioning table of a printing machine for printing door panels, characterized in that it consists of a base structure (1), in whose upper horizontal beams (2) a shaft (5) of a rotating positioning table (3) provided with a pivoting mechanism is rotatably arranged; on which perpendicular mounting arms (4) of the rotary positioning table (3) are fixed, between which clamping elements are arranged. Rotary positioning table for a door panel printing machine according to claim 1, characterized in that the pivoting mechanism is formed by a rod (8) provided with self-lubricating ball bearings (9) at both ends, the upper end of the rod (8) being rotatably mounted at the end of one of the bearing arms (4) of the rotary positioning table (3) and the lower end of the drawbar (8) is rotatably mounted to a slider (11) which is mounted on a toothed belt (10) located at the bottom of the foundation structure ( 1) and is wrapped around two pulleys (12, 12 ') of which the rear pulley (12') is connected via a shaft (13) to a motor (7) for pivoting the rotary positioning table (3) to the desired position. The rotary positioning table of a door panel printing press according to claim 1, characterized in that the pivoting mechanism is formed by a motor (7) for rotating the rotary positioning table (3) to a desired position, the body of which is fixed to the foundation structure (1). ), wherein the motor shaft (7) is connected to the shaft (5) of the rotary positioning table (3). Rotary positioning table of a door panel printing machine according to claim 1, characterized in that the pivoting mechanism is formed by a motor (7) for rotating the rotary positioning table (3) to a desired position, the body of which is fixed to the foundation structure (1) wherein the motor shaft (7) is provided with a toothed pulley (15) which is connected by means of a toothed belt (14) to a toothed pulley (15) mounted on a shaft (5) of the rotary positioning table (3). The rotary positioning table of the printing machine for door panel printing according to claims 1, 2, 3 and 4, characterized in that the clamping elements are vacuum suction cups (6). 6. A rotary positioning table for a door panel printing machine according to claims 1, 2, 3 and 4, characterized in that the clamping elements are magnetic or mechanical elements. A rotary positioning table for a door panel printing machine according to claims 2, 3 and 4, characterized in that the motor (7) is configured for electronic control.