DE29609589U1 - Transport system for feeding paper rolls to a roll changer - Google Patents

Description

•J .-V .. ^{PB 3957}

Description:

Transport system for feeding paper rolls to a roller

The innovation relates to a transport system with a transport means for feeding a paper roll to a roll changer of a web-fed rotary printing machine.

A method for feeding paper rolls to web-fed rotary printing machines and a device for carrying out the method are already known from DE 3910444 A1. Paper rolls are brought from an intermediate roll storage facility to roll changers using transport means, e.g. a trolley guided on rails, where they are unpacked and prepared for automatic gluing. The paper roll is brought into the support arms of the roll changer using a lifting device.

The aim of the innovation is to create a simple device in a transport system of the type mentioned at the beginning, with which paper rolls can be transported to the support arms of the roll changer. This aim is achieved as stated in claim 1. Advantageous further developments emerge from the subclaims.

According to the innovation, an adapter carriage is provided in a transfer table in front of a roll changer, which accommodates the transport device loaded with the paper roll, i.e. a transport carriage or a transport carriage. The adapter carriage is then brought together with the paper roll into a loading position for the roll changer. The transfer table is then moved together with the transport device in the direction of the support arms of the roll changer so that its clamping mandrels can engage in the core of the paper roll. The adapter carriage

PB3957

is used if the means of transport is moved automatically. However, according to the innovation, the adapter carriage can be easily removed in order to move the means of transport manually onto the transfer table.

The innovation is explained in more detail below using examples of implementation based on the drawings. They show:

Fig. 1 is a plan view of a first embodiment of a transfer table,

Fig. 2 a cross-section (enlarged) of the transfer table according to Fig. 1,

Fig. 3 is a longitudinal section of the transfer table according to Fig. 1,

Fig. 4 is a plan view of a second embodiment of the transfer table,

Fig. 5 a cross-section (enlarged) of the transfer table according to Fig. 4 and

Fig. 6 is a longitudinal section of the transfer table according to Fig. 4.

A transfer table 1 (Fig. 1) can be moved in the direction of a double arrow D towards or away from a roll changer (not shown here). An adapter carriage 2 is arranged inside the transfer table 1 and can be moved essentially in the direction of a double arrow E. The adapter carriage is mounted on ball rollers 3, 7, which allow it to be moved back and forth on rails 4, 5. The ball rollers 3 are mounted on the underside of cylinder 6 (see Fig. 2). The cylinders 6 are surrounded on their outer surfaces and their upper end by a liquid 8 in which they are mounted elastically sliding over rubber seals 9. In order to be able to determine the weight that the transfer table 1 takes up when a paper roll is lying on it, or when this is additionally pressed downwards by the support arms of the roll changer, so that there is a risk of overloading the transfer table 1, a pressure gauge is arranged on the liquid chamber for the liquid 8. The ball rollers 7 are arranged in a fixed position.

The transfer table 1 (Fig. 1) has in its side walls 10, 11 openings 12, 13 through which a means of transport, i.e. in an embodiment of the innovation according to Fig. 1 a transport carriage, can be pushed onto the adapter carriage 2. In the openings 12, 13

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one light barrier each with a light transmitter 14 and a light detector

15, through which the passage of the transport carriage can be determined. On the adapter carriage 2 there is a catch device 16, which has two pneumatic cylinders 17, 18. In the event of a transport carriage hitting the transfer table 1 and the adapter carriage 16 through the opening 13, the pneumatic cylinder 17, after its piston has moved upwards, serves as a front stop for the transport carriage, while the piston of the pneumatic cylinder 18, after the transport carriage has hit the pneumatic cylinder 17, moves upwards into a hole in the transport carriage and thus fastens it to the adapter carriage 2. At the time when the transport carriage is moved onto the transfer table, the adapter carriage 2 rests against the stops 20, 21; the catch device 16 rests against the stop 22.

Since the adapter carriage 2 is equipped with a plurality of fixed rollers 23, the transport carriage can be moved further on it by rolling, by moving the catch device 16 from the stop 22 in the direction of an arrow H onto the adapter carriage 2 until the transport carriage is centered on the adapter carriage 2.

For this purpose, the lower part of the catch device 16 (Fig. 3) is designed as a piston in a hollow rail 24 that can be moved by compressed air in both directions of the double arrow F. After the transport carriage has been moved by the catch device

16 has been moved to the middle of the adapter carriage 2, the adapter carriage 2 is moved by the stops 20, 21 in the direction of the side wall 10 to the middle of the transfer table 1. For this purpose, the adapter carriage 2 has pistons 25 attached to its underside, which can be moved in hollow rails 26, 27 by compressed air in the same way as the lower part of the catch device 16 in the rail 24.

After the adapter carriage 2 has been moved to the middle of the transfer table 1 in this way, the transfer table 1 is moved in the direction of the roll changer. In order to avoid a slight lateral offset during

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In order to compensate for the mandrels of the roll changer's support arms engaging the carrier sleeve of the paper roll, guide rails 28, 29 on both sides of the adapter carriage 2 are released, which can be positioned, for example, using compressed air through the pneumatic cylinders 30, 31. Since the adapter carriage 2 is mounted on the balls 3, it can also be moved in the direction of the double arrow D within the scope of the possible lateral play on the rails 26, 27.

In another embodiment (Fig. 4 to 6), instead of a transport carriage, a transport carriage equipped with wheels is driven onto an adapter carriage 32 (Fig. 4), which, unlike the adapter carriage 2, is not equipped with rollers 23. All other functions are the same. They are therefore provided with the same reference numerals.

Instead of carrying out the movements of the safety catch 16, the adapter carriages 2, 32 and the guide rails 28, 29 pneumatically, these can also be carried out hydraulically or electrically.

The innovation creates a transfer table 1 with an adapter carriage 2, 32, through which a transport carriage or transport carriage loaded with a paper roll can be moved to a roll changer. The means of transport, i.e. the transport carriage or transport carriage, is attached to the adapter carriage 2, 32 by means of a catch device 16, the adapter carriage 2, 32 moves to the middle of the transfer table 1, and the transfer table 1 moves in the direction of the roll changer.

Claims (10)

PB3957 Protection claims: 1. Transport system with a transport means for feeding a paper roll to a roll changer of a web-fed rotary printing machine, characterized in that in front of the roll changer there is a transfer table (1) which can be moved in the paper running direction of the paper in the web-fed rotary printing machine and which is equipped with an adapter carriage (2, 32) which can be moved at least perpendicularly to the paper running direction for receiving the transport means carrying the paper roll. 2. Transport system according to claim 1, characterized in that the adapter carriage (2, 32) is mounted on ball rollers (3, 7) with which it can be moved on rails (4, 5). 3. Transport system according to claim 2, characterized in that the balls (3) are arranged on the underside of cylinders (6), the cylinders (6) being mounted in a space filled with a liquid, to which in particular a pressure gauge is connected. 4. Transport system according to one of claims 1 to 3, characterized in that a catch device (16) is present on the adapter carriage (2, 32), by means of which the transport means can be locked on the adapter carriage (2, 32). 5. Transport system according to claim 4, characterized in that the catching device (16) is designed in its lower part as a piston which is embedded in a hollow rail (24) arranged on the adapter carriage (2, 32) and which is pneumatically movable in the rail (24). 6. Transport system according to one of claims 1 to 5, characterized in that the adapter carriage (2, 32) is pneumatically movable on at least one rail (26, 27) by means of a piston (25) which is fastened to its underside. 7. Transport system according to one of claims 1 to 6, characterized in that guide rails (28, 29) are arranged on the side of the adapter carriage (2, 32), which can be positioned and released by pneumatic cylinders (30, 31). 8. Transport system according to one of claims 1 to 7, characterized in that fixed rollers (23) are arranged on the adapter carriage (2). 9. Transport system according to one of claims 1 to 8, characterized in that the catching device (16) can be activated by a light barrier (14, 15). 10. Transport system according to one of claims 1 to 9, characterized in that hydraulic or electrical positioning or drive means are arranged instead of pneumatic drive or positioning means.