JP3410066B2 - Paper transfer cylinder for rotary printing press - Google Patents

Abstract

The sheet guide cylinder has at least one surface (10) plane-parallel to the cylinder axis (13). This surface has a plate (11) carrying a sheet holding system (5) positively attached to but removable from it. The plate with the sheet holding system and cam roller (18) is separable from the base body (9) of the cylinder at the pairing point of the cam roller and its control cam.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper transfer cylinder for a rotary printing press, which comprises at least one sheet-holding system arranged circumferentially for a sheet-shaped substrate. Regarding things.

[0002]

2. Description of the Related Art Paper transfer cylinders of this kind are described in the document DD.
Known from 53711, this paper transfer cylinder is designed as a sheet holding system and has a replaceable group of modules as a gripper device. The gripper device is arranged directly in the trough on a support having an angled cross section. The angled support, together with the gripper device, forms a module, which is connected to the body groove by a fixing screw and which is adjusted with respect to the body groove recess by means of an adjusting screw and a pressure plate. It is possible.

From DE-A-3614565 is known a paper transfer cylinder which is designed as a reversing drum. The reversing drum consists of a frame with support pins at the ends and a solid cylindrical flange, which respectively follows it. A gripper device as a sheet-holding system is supported on the frame by means of a support part and penetrates a solid cylindrical flange on one side.
Furthermore, the reversing drum has a drum surface configured as a removable jacket member.

The disadvantage in this case is that the paper transfer cylinder described in document DD53711 is a paper transfer cylinder of equal size and is limited to only one gripper bridge available for surface printing. Is. Moreover, since the gripper bridge is inserted into the body groove, the free space required for mounting or dismounting work is limited. German Patent No. 3
Since the paper transfer cylinder disclosed in Japanese Patent No. 614565 has a gripper shaft end that penetrates the flange, it is costly to attach or detach the sheet holding system.

According to DE-A 245 1987, the paper transfer cylinder is designed as a reversing drum, which has two diametrically opposed sheet-holding systems on its circumference. . Each sheet-holding system consists of a suction device system and two gripper systems that swing towards each other. These sheet holding systems are arranged directly on the frame and are operatively connected with corresponding actuating controls for advancing the gripping movement.

[0006]

SUMMARY OF THE INVENTION The object of the invention is to avoid the above-mentioned disadvantages in a paper transfer cylinder of the type mentioned at the outset, and in particular to simplify at least one sheet holding system associated with the paper transfer cylinder. The purpose of the present invention is to provide a paper transfer cylinder that can be easily attached or detached and has improved accessibility.

[0007]

This problem is solved by the features of the main claim. Evolving forms are the subject of dependent claims.

The point of the first advantage is that the sheet holding system can be attached to a strip member, which is detachably connected to the cylinder frame with one plane. Is. With this configuration, the strip member can be easily attached or detached as a module together with the sheet holding system, and adjustment work and maintenance work can be realized at a clearly low cost.

Furthermore, the sheet holding system can be arranged on the strip member together with at least one cam roller, optionally as a gripper device or as a suction device or a combination of these, the machine frame and Advantageously, it is functionally connected to at least one cam (cam transmission) arranged on the transport cylinder.
Since this gripper device or suction device can be attached to the same strip member, it can be used for surface printing or double-sided printing. Therefore, the paper transfer cylinder configured as described above is a universal type, and can be used as, for example, a paper feed drum, a transfer cylinder, an impression cylinder, or a reversing unit.

Even if the paper transfer cylinder is a paper transfer cylinder of equal size (constant speed) (based on a plate cylinder of equal size), a paper transfer cylinder of multiple size (1 / 2x speed, 1 / 3x speed, 1
It is likewise advantageous to be able to construct with a corresponding number of strip members with a sheet holding system, even at / 4 speed. For that purpose, only one strip member with a sheet holding system is arranged on the cylinder frame, or a plurality of strip members with a sheet holding system are arranged symmetrically on the circumference of the cylinder frame. It is provided in.

Each strip member has at least one plane above which receives at least one sheet holding system and is operatively connected by at least one plane arranged in the cylinder frame. Having the lower side is also an advantage. These planes can then be provided as general planes, or at least as partial planes, on one side of the body frame or on different sides, or they can be adapted to the band member.

Finally, the complete sheet holding system can be pre-assembled on the strip member in one step during manufacture, and then in the second step one or more flat surfaces by means of removable coupling means. The strip plate member can be fixed to the barrel frame via the, so that there is an advantage that the work of attaching or detaching the band plate member to the transport cylinder becomes easy. Moreover, when the strip member is removed (along with the sheet holding system), the cylinder frame, as well as the sheet guide member which is adjacent and spaced from the transfer cylinder, is more easily accessible. .

In summary, the paper transfer cylinder comprises a cylinder frame having a cylinder shaft. This torso frame has
A plane / partial plane is formed which is arranged parallel to the cylinder axis and symmetrically in at least one plane. To this plane / partial plane is attached a strip member having at least one plane / partial plane located below and having a sheet holding system, the strip member being removable. In this state, it is accommodated within the range of the cylinder circumference and is coupled to the cylinder frame. Further, the strip plate member is at a combination position of the cam roller (including the roll lever) and the corresponding cam, and thus the sheet sheet. It is separable from the torso frame with the retention system.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments.

In a tandem type rotary offset printing press for processing sheets, a paper transfer cylinder 4 as a reversing device is arranged between two printing units. The first printing unit, which is arranged in front of the sheet in the sheet advancing direction, includes an impression cylinder 1 as a paper transfer cylinder, a blanket cylinder 2, and a plate cylinder 3. Similarly, the second printing unit, which is arranged after the paper transfer cylinder 4 in the sheet conveying direction, is composed of the impression cylinder 1, the blanket cylinder 2, and the plate cylinder 3 as the paper transfer cylinder. .

The plate cylinder and the blanket cylinders 2 and 3 are of the same size (constant speed axis), and the impression cylinder 1 and the paper transfer cylinder 4 as the reversing drum are doubled in size. The paper transfer cylinder 4 shown in FIG. 2 has a cylinder frame 9 which is symmetrical with respect to the cylinder axis 13.
The barrel frame is preferably formed as a one-piece drum body with axle pins. Within the drum circumference of the paper transfer cylinder 4, a plurality of partial planes 10 parallel to the cylinder axis 13 and on the same plane are provided.
Are each arranged as a receiving surface for one strip member 11 to be described later. As a modification, the strip member 1
As a receiving surface for 1, one general plane 10 may be formed instead of a plurality of partial planes 10. FIG. 2 shows four partial planes 10 distributed over the width of the torso frame 9. Alternatively, the torso frame 9 may be constructed with only one correspondingly dimensioned flat surface 10 for each strip member 11.

In FIG. 2, the partial planes 10 are arranged symmetrically in the circumferential direction, offset by 180 ° on each half of the paper transfer cylinder 4. If a plurality of partial planes 10 are arranged, they are arranged parallel to the body axis 13 in at least one plane in each half (dual arrangement). 2 and 3, only one strip member 11 arranged on the barrel frame 9 is shown with the sheet holding system 5 for the sake of clarity.

The paper transfer cylinder 4, which serves as a reversing device, carries two sheet-holding systems 5 on the circumference, on their respective halves, offset 180 ° in diameter. In this embodiment, the sheet holding system 5 comprises a suction device system 8 with a rotatable suction device pipe and a first gripper system 6 with a corresponding gripper shaft 14 with a roll lever. It has a back side print gripper) and a second gripper system 7 (front side print gripper), a cam roller 18 and a gripper receiving surface and a cam for controlling the gripper shaft associated therewith. Each sheet holding system 5 is further provided with a rotary shaft 15 with a cam for corresponding rotary shaft control of the gripper systems 6, 7, and a movement mechanism for the suction device system 8, for example a cam transmission. Device or a joint transmission, thereby realizing the transfer of sheets between the cylinders for conveying the sheets and the cylinders, as well as the internal sheets in the transfer cylinder 4 itself. Realize delivery.

Each sheet holding system 5 is, as a set, mounted on the support 16 above the strip member 11 already mentioned above, this combination forming a module. The lower surface of each strip member 11 is removably connected to the body frame 9 in conformity with the partial flat surface 10, and on both ends (in the axial direction of the sheet holding system 5) on the end side. It supports a side part 12, which is fixed to the strip member 11 and at least partly receives the supporting part of a roll lever with a cam roller 18. The pivot shaft 15, which supports the gripper systems 6, 7, is rotatably supported by a support 16 arranged above the strip member 11.
The side part 12 is non-removably joined, for example by casting or welding, or preferably detachably, for example screwed, to the strip member 11 and the gripper systems 6, 7 and the control device. System 8 and cam roller 1
It supports the control part of the rotary shaft 15 including 8 and its operation can be controlled by a known method via a cam (cam transmission device).

At least one is provided on the lower side of the strip member 11,
Advantageously, a plurality of partial planes 10 are provided, which are partial planes 10 formed on the torso frame 9.
Is located adjacent to. Depending on the configuration, the body frame 9
It is also possible to realize a combination of the entire flat surface 10 and the partial flat surface 10 of the strip plate member 11 or a combination of two overall flat surfaces 10. The partial plane surface 10 of the body frame 9 and the lower side of the strip plate member 11 are arranged on at least one surface. In one advantageous configuration, the strip member 11 and / or
Alternatively, the corresponding side portion 12 can be supported on the body frame 9 on another surface. To that end, one or more additional planes 17 which are also parallel to the body axis 13
Are provided (FIG. 2). Here, the additional flat surface 17 is provided on the body frame 9 and on the lower side of the strip plate member 11 or the side portion 12 that is disposed adjacent to the trunk frame 9. The strip member 11 is always arranged within the circumference of the body circumference and is supported by the additional flat surface 17 as required.

That is, according to the configuration of the present invention, the strip member 1
1 includes a gripper system 6, 7 and a suction device system 8, and a rotary shaft 15 provided with a supporting portion 16, a side portion 12 required for supporting, and a roll lever required for controlling. Equipped cam roller 18, return system (spring), stopper member, lubricating device,
It is also possible to arrange axial guide members and the like.

Therefore, at the time of assembling, the strip plate member 11 equipped with each member as described above can be attached to the paper passing cylinder 4 together with the cylinder frame 9 and completed. When removed, the individual components, for example the gripper shafts 14, can be replaced from the strip element 11, or the complete strip element 11 is preferably separated from the torso frame 9. At this time, the strip plate member 11 having the sheet holding system 5 and the operation control unit are separated from each other.
Between the cam roller 18 (part of the sheet holding system 5) arranged above and the corresponding cam.

The embodiment described above is not limited to a double-sized paper transfer cylinder 4 with two strip members 11 arranged on the circumferential side and having a sheet holding system 5.

This solution is also suitable for a cylinder frame 9, for example an equal-magnification paper transfer cylinder 4, which is provided around the circumference with only one strip member 11 and a sheet holding system 5.

As a variant, it is also possible to provide a corresponding number of strip members 11 and sheet holding systems symmetrically arranged on the circumference in a paper transfer cylinder 4 of three or four times the size. Is.

In the paper transfer cylinder 4 with one strip 11 having the sheet holding system 5, the cylinder frame 9
Since at least one plane or partial plane 10 is provided on the strip, the strip member 11 is removably fixed on the lower side (plane or partial plane 10) within the circumference of the drum.

In a paper transfer cylinder 4 having a plurality of strip members 11 each having a sheet holding system 5, a plurality of planes or partial planes 10 on the cylinder frame 9 are symmetrical with respect to the circumference, The strip plate members 1 are arranged at intervals of 120 ° (when three strip plate members 11 are provided) to 90 ° (when four strip plate members 11 are provided).
1 can be detachably mounted on the lower side (flat surface or partial flat surface 10) within the range of the drum circumference and can be fixed to the body frame 9.

For example, the strip member 11 can also be provided with a single gripper system 7, which is designed, for example, as a gripper for surface printing, together with a supported gripper shaft 14 and at least one cam roller 18. Good. As a modification, the strip member 11 is provided with the first and second gripper systems 6 and 7, respectively, a gripper shaft 14 and a corresponding cam roller 18, and a rotary shaft 15 (or a comparable rotary shaft). Mechanism) and the corresponding cam roller 18 may be arranged.

Similarly, in addition to the gripper systems 6, 7 (including the pivoting mechanism), at least one supported suction device system 8 is arranged with a corresponding movement mechanism and a corresponding cam roller 18. Good. in this case,
The cam roller 18 is functionally connected to the cam.

The sheet holding system 5 is formed by at least a gripper system 6 and / or 7, with at least one gripper system 6, 6.
7 is separable from the body frame 9 at the combined position of the cam roller 18 and the corresponding cam.

In a development, this sheet holding system 5
Has at least one suction device system 8, in which case the suction device system 8 comprises a cam roller 1
It is separable from the body frame 9 at the combined position (contact position) of 8 and the corresponding cam.

[Brief description of drawings]

FIG. 1 is a side view showing a paper transfer cylinder as a reversing device between two printing units.

FIG. 2 is a front view showing a paper transfer cylinder.

FIG. 3 is a side view showing the sheet holding system.

[Explanation of symbols]

1 impression cylinder 2 blanket body 3 plate body 4 Paper transfer cylinder 5 sheet holding system 6 First gripper system 7 Second gripper system 8 Suction device system 9 torso frame 10 planes / partial planes 11 Strip member 12 sides 13 trunk 14 gripper shaft 15 rotation axis 16 Support 17 additional planes 18 Cam roller

─────────────────────────────────────────────────── ───Continued from the front page (72) Inventor Robert Ortner Germany 63755 Arsenau Siedelnk am Stein 26 (72) Inventor Michael Vallocha Germany 64859 Eppelthausen Sdatenstrasse・ 6 (56) Reference JP 61-41549 (JP, A) JP 62-173258 (JP, A) JP 58-59152 (JP, A) (58) Fields investigated (Int.Cl . ⁷ , DB name) B41F 21/10 B41F 21/00 B41F 21/06 B65H 5/12

Claims (6)

(57) [Claims] 1. A paper transfer cylinder for a rotary printing press, comprising at least one sheet holding system which is arranged in a replaceable manner and has a cam roller for advancing a gripping operation and a cam corresponding thereto. in those and a, the paper transfer cylinder (4) is at least 1 arranged in the barrel body frame (9) having a (13) and the cylinder axis (13) parallel and in one plane with respect to One plane / partial plane (1
0) and said plane / partial plane (10) has
Comprising said at least one sheet holding system (5)
In addition, the lower side of the strip member (11) housed within the circumference of the paper transfer cylinder (4) is detachably attached to the sheet holding system. (5) is a combination of the cam roller (18) and the corresponding cam.
A paper transfer cylinder which is separable from the cylinder frame (9) at a position . 2. The body frame (9) is provided on the circumferential side with the
Plural planes / parts parallel and symmetrical to the body axis (13)
Equipped with a division plane (10), each plane / partial plane (10)
Each has at least one sheet holding system
The lower side of the strip member (11) having (5) is the trunk.
Being detachably attached within the circumference of (4)
The paper transfer cylinder according to claim 1, wherein 3. The sheet holding system (5) has at least one gripper system (6, 7), which gripper system (6, 7) comprises a cam roller (18). 3. The paper transfer cylinder according to claim 1, wherein the paper transfer cylinder is separable from the cylinder frame (9) at a corresponding combination position with a cam. 4. The sheet holding system (5) has at least one suction device system (8), which suction device system (8) comprises a cam roller (18) and a corresponding cam. paper transfer cylinder according to any one of claims 1 to 3, characterized in that there is a a combination position separable from the barrel frame (9) with. 5. A side portion (12) is provided at both ends of the strip plate member (11), and the side portion (12) supports a supporting portion of a roll lever having a cam roller (18). The paper passing cylinder according to claim 1 or 2 , wherein 6. The trunk frame (9) comprises the trunk shaft (1).
3) has at least one additional plane (17) arranged parallel to it, which additional plane lies below the strip member (11) and / or on the side (12). The paper transfer cylinder according to claim 5 , which is additionally supportable within a circumference.