JP2008006822A - Sheet guide drum which has drum packing in processing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To offer an invention regarding the sheet drum guide having drum packing in the processing machine. <P>SOLUTION: The subject of this invention is to offer a leaves sheet guide drum having drum packing. This leaves sheet guide drum is so designed as to convey the sheet material with an especially large sheet width. The above subject can be solved by that the drum packing 9 is composed of a plurality of number of partial drum packing, and the partial drum packing are provided to the sheet width of the leaves sheet guide drum 1, and the partial drum packing can be detachably fixed to the body of the leaves sheet guide drum by the extension means 14 prepared in the body of the leaves sheet guide drum 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sheet guide cylinder having a cylinder in a processing machine according to the preamble of claim 1. Particularly suitable as processing machines are rotary printing presses (including varnishing machines), in particular offset printing presses and / or varnishing equipment comprising at least two printing / varnishing devices for the processing of the material to be printed. .

  A sheet guide cylinder having a trunk is used in a processing machine such as a rotary printing machine, particularly a double-sided printing machine. This type of rotary printing machine is equipped with a reversing device according to the principle of single drum reversal (Etrommelwendung, for example known from US Pat. Have. Alternatively, the rotary printing press may be configured to include a printing device that performs printing alternately on both sides of the sheet material. This type of sheet-fed printing machine is known, for example, from US Pat.

  In duplex printing, after printing and / or varnishing is performed on the first side of the sheet carried by the sheet guide cylinder, printing or histing is performed on the second side. Done. At that time, freshly applied ink or varnish is deposited on the peripheral surface of the sheet guide cylinder from the lower surface (first surface) of the sheet by ink / varnish reverse trapping (Farb / Lackrueckspaltung). In order not to contaminate the peripheral surface or to prevent the printed / varnished pattern on the sheet from being damaged, the sheet guide cylinder is detachably provided with an upholstery having an ink / varnish repelling surface.

  A sheet guide cylinder of this kind with a waistline is known from US Pat. The sheet guide cylinder has a special surface with improved ink reverse trapping and wear characteristics. The sheet guide cylinder has a cylindrical main body, the main body having at least one sheet holding system provided thereon, and at least one torso provided circumferentially. Have. The sheet guide cylinder is also sized to carry one sheet per revolution, or per revolution, for a plate cylinder sized to carry one sheet per revolution. It can be configured as a cylinder sized to transport multiple sheets of paper, and therefore, when viewed in the circumferential direction, it is detachably provided on one waistline or peripheral side provided detachably. It has a plurality of waistbands. The torso is fixed on the sheet guide cylinder by a tensioning means. In this case, the tensioning means is provided in one or a plurality of trunk grooves. A sheet holding system is preferably provided in these body grooves.

  From US Pat. No. 6,057,049, further upholstery for a sheet guide cylinder is known. The waistline includes a material having flexibility, and is provided by being gently fixed around the sheet guide drum by a tensioning unit.

The torsion and tensioning means always extend over the entire surface of the sheet guide cylinder as viewed in the cylinder axis direction.
East German Patent Application No. 54703 German Patent Application Publication No. 1107246 German Patent Application No. 3203879 International Publication No. 02/087883 Specification U.S. Pat. No. 6,073,556

  The object of the present invention is to provide a sheet guide cylinder of the kind described at the outset. This sheet guide cylinder is specifically designed for conveying large plate width sheet material.

  This problem is solved by the structural features of claim 1. Further configurations emerge from the dependent claims.

  The first advantage is that by configuring the sheet guide cylinder so as to have a plurality of partial cylinders provided over the plate width, the partial cylinder is easy to handle when attaching to and removing from the sheet guide cylinder. That is. The partial upholstery becomes easier to lay flat on the peripheral surface of the sheet guide cylinder and the possible deflection is greatly reduced.

  In a preferred configuration, each partial tension on the sheet guide cylinder can be adjusted and tensioned separately.

  The second advantage is that it is possible to provide a plurality of partial cylinders on the sheet guide cylinder carrying the sheet material, preferably over the plate width and further in the circumferential direction (plate length). It is.

  A third advantage is that the partial waist can have any shape and dimension in the area of the adjacent side edges to fit the tensioning means or holding means. In one configuration, the partial waist is provided symmetrically. Other configurations may choose to divide into one or more formats depending on any form, eg DIN-A4 format division, and take into account the Nutzen to be processed Can also be selected.

  The fourth advantage is apparent from the fact that the partial lining constituting the lining is not limited to partial lining (with or without coating) that repels ink and / or varnish. This type of lining can also be configured as a simple metallic lining. For example, a sheet guide cylinder may carry a partial cylinder consisting of a thin copper plate or a chrome plate. This arrangement is preferably a sheet guide cylinder having a partial waist, which is provided with correspondingly at least one separating device (including a perforator), for example a longitudinal cutting device. Suitable for the torso. Alternatively, a partial waistline constituting a metal waistline may be provided on the sheet guide cylinder. This sheet guide cylinder cooperates with an adjacent glossing device, slitting device, embossing device, grooving device, stamping device or punching device.

  The present invention will be described in detail based on an embodiment.

  A rotary printing machine for processing a sheet-like printing material (sheet material) includes at least two printing devices / varnishing devices I to III. Each of the printing apparatuses I and II includes a plate cylinder 4 having a cylinder groove and carrying a printing plate. The plate cylinder 4 is provided with at least one inking device, and a dampening device (not shown) is provided correspondingly as necessary. Here, the printing plate is inked with a medium in the form of printing ink by a form roller, in particular an ink form roller, and when using a dampening device, by at least one form roller, in particular at least one dampening roller. Moistened with a medium in the form of a dampening agent. Alternatively, the varnishing device III includes a plate cylinder 5 (varnishing cylinder 5) having a cylinder groove and carrying a printing plate (including a rubber blanket). The plate cylinder 5 is provided with a metering system 6 correspondingly. Here, the printing plate is varnished with a medium in the form of a varnish by means of a form roller, in this case an anilox-type varnish roller and a chamber doctor.

  According to FIG. 1, the printing apparatuses I and II include a plate cylinder 4 configured as a plate cylinder, and a rubber blanket cylinder 3 provided adjacent to the plate cylinder 4. Here, the rubber blanket cylinder 3 cooperates with the sheet guide cylinder 1 for conveying the sheet material in the conveying direction 7, in particular with the impression cylinder. Similarly, the sheet cylinder 5 of the varnishing device III is provided with a sheet guide cylinder 1, in particular an impression cylinder.

  In order to transport the sheet material in the transport direction 7, at least one sheet guide cylinder is provided as a transfer cylinder 2 between the sheet guide cylinder / impression cylinder 1.

  In this example, the sheet guide cylinders 1 and 2 configured as impression cylinders / passing cylinders are compared to the plate cylinders 4 and 5 sized to convey one sheet per rotation. The size is configured to convey two sheets of paper per rotation. The sheet guide cylinders 1, 2 are provided at two opposite positions on the peripheral side for accommodating the sheet holding system 15, i.e. two supporting surfaces for the sheet material. In a manner known per se. Between the sheet guide cylinders 1 of the printing apparatuses I and II, for example, a sheet guide cylinder 8 is provided as a reversing device.

  The reversing device 8 shown is configured as a single drum reversing machine in accordance with the principle of Hinterkantenwendung. Alternatively, other inverting devices can be used.

  In this example, each of the sheet guide cylinder / impression cylinder 1 of the second printing apparatus II and the varnishing apparatus III is provided with a cylinder 9 on the peripheral surface. Here, each waistline 9 is composed of a plurality of partial waistlines A to n provided over the plate width.

  The sheet guide cylinder 1 (having partial trunk tensions A to n) configured as an impression cylinder in the varnishing device III is provided with a separating device 18 that can be operated as necessary. Is preferred. Separation device 18 may be configured, for example, as a laser cutting device or a mechanical perforation / cutting device.

  FIG. 2 shows a sheet guide cylinder 1 that is twice as large as the impression cylinder. In the sheet guide cylinder, two cylinder grooves 16 are provided on the peripheral side of the main body.

  In the front view of FIG. 2, the carrying surface (partial circumferential surface) for the sheet material, which is formed by the trunk groove 16, carries three partial trunks A, B, and C. These partial cylinders are provided over the plate width, that is, in the direction of the cylinder axis 19 of the sheet guide cylinder 1. The partial trunk tensions A to C extend between the two trunk grooves 16 in the circumferential direction, and the end portions of the partial trunk tensions A to C are respectively provided in the one trunk groove 16. The means 14 is detachably fixed.

  Furthermore, this kind of sheet guide cylinder 1 may have a holding means 17. This holding means preferably extends over the plate width. In this configuration, the holding means 17 is covered with the partial waist tensions A to C. That is, these partial waists are not used. For example, this type of holding means 17 can be provided in at least one slit-like groove. The slit-shaped groove extends over the plate width and is integrated with the sheet material support surface of the sheet guide cylinder 1.

  In this example, the first partial waistline A, the second partial waistline B, and the third partial waistline C have waistline widths 11, 12, and 13, respectively. In this example, when the waist width 11 to 13 is added, the plate width of the sheet guide cylinder 1 is obtained. The partial waists A to n can have side edges 10. The side edge portions are provided in a state of being in contact with each other over the plate width (Stoss-an-Stoss-Montage). In the case of illustration, the partial waistings A, B, C have straight side edges 10, and these side edges are provided side by side while being in contact with each other over the plate width. ing.

  Alternatively, the side edge 10 may have other configurations. In a further configuration, it is preferred that the side edges 10 that are (directly) adjacent have contours across the plate width that are detachably connected to one another in a form-coupled state. As a result, a stable connecting part is achieved in the trunk 9 fixed on the sheet guide cylinder 1 by the partial trunks A to n. At the same time, printing technique obstacles that may arise due to the side edges 10 being straight can be prevented or greatly reduced.

  The partial waist tensions A to C according to FIG. 2 are detachably fixed to at least one tension means 14 at one end, preferably the printing start part DA. At that time, the tensioning means 14 is provided in each of the body grooves 16. The partial waist tensions A to C can be detachably fixed in the body groove 16 at the other end by the tensioning means 14 or, alternatively, other holding means 17.

  In one configuration, the at least one holding means 17 is between the two trunk grooves 16 in the circumferential direction so that the partial waist tensions A to n extend between the trunk groove 16 and the at least one holding means 17 in the circumferential direction. Can be provided. At that time, the end portions of the partial trunk tensions A to n are detachably fixed by the tension means 14 provided in the trunk groove 16 and the holding means 17 provided in the sheet guide cylinder 1. ing. In a further configuration, a plurality of tensioning means 14 may be provided over the plate width, and one tensioning means 14 is individually provided at each end of the partial trunk tensions A to n. Also good. In a further configuration, a plurality of tensioning means 14 may be provided over the plate width, and one tensioning means 14 is individually provided at one end of each of the partial waist tensions A to n. One holding means 17 may be provided corresponding to the other end.

  In FIG. 3, partial waists A to n provided on the peripheral surface of the sheet guide cylinder 1 protrude in an abgekantet state in a state of being folded into the body groove 16. A state in which the fixing means 14 is detachably fixed to the groove wall is shown. It is preferred that the tensioning means 14 has the function of a gripping edge for the sheet holding system 15 at the same time. Adjusting, detaching or replacing the partial waist tensions A to n at the position 14 'of the tensioning means by releasing the tensioning means 14 or by releasing the tensioning means 14 and moving it in the transport direction 7; Will be able to. The tensioning / holding means 14 and 17 provided at the other end of the partial waist tensions A to n are detachable in a state where these partial waist tensions A to n are bent or tangent on the end side. Can be fixed.

  FIG. 4 shows a sheet guide cylinder 1 having a double size and having two cylinder grooves 16 provided in a state of being shifted by 180 degrees at opposite positions. ing. When the sheet guide cylinder 1 is divided into quadrants 20 to 23, a cylinder groove 16 having a tensioning means 14 is provided in the quadrant 20 in the transport direction 7. In these tensioning means 14, one end of three partial cylinder tensions A to C provided across the plate width in the direction of the cylinder shaft 19 is detachably fixed. At the other end of the partial waists A to C, the sheet guide cylinder 1 has holding means 17 provided in the circumferential surface carrying the sheet material, so that these ends The part (partial tension A to C) is detachably fixed. In this example, the holding means 17 is provided in the region between the quadrants 20 and 21 and extends over the entire width of the plate width.

  Further, the holding means 17 detachably fixes one end of the fourth to sixth three partial waists D, E, and F provided over the plate width in the direction of the shaft groove 19. It is accommodated in the area between the quadrants 20 and 21. The partial waist tensions D to F extend to the trunk groove 16 (the region of the quadrants 21 and 22) that is placed behind in the transport direction 7. The body groove is provided with a tension means 14 for detachably fixing the other end of the partial waist tensions D to F.

  A tensioning means 14 is further provided in the last body groove 16 (quarter circles 21 and 22). This tensioning means is accommodated in order to detachably fix one end of the seventh to ninth partial waist tensions G, H, I provided over the plate width in the direction of the shaft groove 19. To do. At the other end of the partial waist GI, the sheet guide cylinder 1 has holding means 17 provided on the peripheral surface carrying the sheet material, whereby this end (Partial waistline GI) is detachably fixed. In this example, the holding means 17 is provided in the area between the quadrants 22 and 23 and extends over the entire width of the plate width.

  Further, the holding means 17 has one end of the tenth to twelfth three partial waists J, K, and L provided over the plate width in the direction of the cylinder shaft 19 between the quadrants 22 and 23. Accommodates for removably fixing within the area. The partial waist tensions J to L extend to the trunk groove 16 (the region of the quadrants 23 and 20) that is placed behind in the transport direction 7. The body groove is provided with a tensioning means 14 for detachably fixing the other end of the partial waist tensions J to L.

  Accordingly, in this configuration, each of the trunk grooves 16 is provided with two tensioning means 14 provided corresponding to the groove walls, respectively, and detachably fixes one end of the partial trunk tensions A to L. It is provided for.

  In a simple configuration, the holding means 17 can be a notch or a seam in the body or the sheet guide cylinder 1 in which one end of the upholstery A-n is detachably fixed. This kind of notch / seam may be provided on the peripheral side of the sheet guide cylinder 1 in a state of being shifted by a predetermined angular amount of 90 °, 180 °, 270 °, 360 °, for example. Furthermore, the holding means 17 (including the case of notches or seams) may be continuously flush with the barrel axis 19 (FIG. 2) or parallel to the barrel axis 19. You may provide in the state which shifted | deviated to the side (FIG. 5).

  In FIG. 5, the partial waist tension A is provided on the sheet guide cylinder 1 by the tensioning means 14 and the holding means 17 on the peripheral side. A partial waist tension D is provided on the sheet guide cylinder 1 by the holding means 17 and the further tensioning means 14. In this case, the holding means 17 is provided so as to extend over the trunk width 11 flush with the trunk shaft 19. Further, on the peripheral side, a partial waist tension B is provided on the sheet guide cylinder 1 by the tensioning means 14 and the holding means 17. A partial waist tension E is provided on the sheet guide cylinder 1 by the holding means 17 and the further tension means 14. In this case, the holding means 17 ′ is provided so as to extend over the trunk width 12 in parallel to the trunk shaft 19 in a state shifted laterally by the first amount. Similarly, on the peripheral side, a partial waist tension C is provided on the sheet guide cylinder 1 by the tensioning means 14 and the holding means 17. A partial waist tension F is provided on the sheet guide cylinder 1 by the holding means 17 and the further tensioning means 14. In this case, the holding means 17 ″ extends over the waist width 13 parallel to the body shaft 19 in a state of being shifted laterally by a second amount.

  The provision of the partial cylinders A to n over the plate width means that the sheet guide cylinder 1 is large enough to convey one sheet per rotation or large enough to convey two sheets. It is not limited to the case. This type of partial waist tension A to n is a case where the sheet guide cylinder 1 has three body grooves 16 on the peripheral side and is sized to convey three sheets of paper per rotation, or a sheet. The paper guide cylinder 1 can be fixed even if it has four cylinder grooves 16 on the peripheral side and is large enough to convey four sheets of paper per rotation. Similarly, a suitable number of holding means 17-17 '' can be provided.

  In summary, at least one waistline 9 provided in the circumferential direction on the main body of the substantially cylindrical sheet guide cylinder 1 can be composed of a plurality of partial waistlines An. In this case, the partial cylinder tensions A to n are provided over the plate width of the sheet guide cylinder 1, and the sheet guide cylinder 1 is provided by the extension means 14 provided in the main body of the sheet guide cylinder 1. It can be detachably fixed to the main body.

It is the schematic of a rotary printing press provided with two printing apparatuses and one varnishing apparatus. It is a schematic front view of a large sheet width sheet guide cylinder. It is the schematic of the trunk | drum groove | channel structure of a sheet guide cylinder. It is a schematic side view of a sheet guide cylinder having a size for conveying two sheets per rotation. It is the schematic of the modification of FIG.

Explanation of symbols

01 sheet guide cylinder (impression cylinder)
02 Sheet guide cylinder (passing cylinder)
03 Rubber blanket cylinder 04 Plate cylinder (plate cylinder)
05 Plate cylinder (varnishing cylinder)
06 Metering system 07 Transport direction 08 Sheet guide cylinder (reversing device)
09 Torso 10 Side edge (torso)
DESCRIPTION OF SYMBOLS 11 Trunk width 12 Trunk width 13 Trench width 14 Tensioning means 15 Sheet holding system 16 Trunk groove 17 Holding means 18 Separating device 19 Trunk shaft 20 First quadrant 21 Second quadrant 22 Second 3 quadrant 23 A 4th quadrant A A 1st partial waistline B 2nd partial waistline C 3rd partial waistline D 4th partial waistline E 5th partial waistline F 6th Ist first printing device II Second printing device III Varnishing device DA Printing start section

Claims (8)

A sheet guide cylinder having a waist in a processing machine,
In a sheet guide cylinder comprising a cylindrical body having at least one sheet holding system provided with a body groove and at least one waistline provided in the circumferential direction,
The said waist (9) is comprised from several partial waist (An),
The partial waist (A to n) is provided over the plate width of the sheet guide cylinder (1),
The partial trunk tension (A to n) can be detachably fixed on the main body by the tension means (14) provided on the main body of the sheet guide cylinder (1). A sheet guide cylinder characterized by. In the sheet guide cylinder according to claim 1,
The partial waist (A to n) extends between two trunk grooves (16) in the circumferential direction,
The ends of each of the partial trunk tensions (A to n) are detachably fixed by tension means (14) provided in one trunk groove (16), respectively. Leaf paper guide cylinder. In the sheet guide cylinder according to claim 1,
At least one holding means (17) is provided between the two trunk grooves (16) in the circumferential direction,
The partial waist (A to n) extends between the body groove (16) and at least one holding means (17) in the circumferential direction,
The end portions of the partial waist tensions (A to n) are detachably fixed by tension means (14) and holding means (17) provided in the trunk groove (16). The sheet guide cylinder to be used. In the sheet guide cylinder according to claim 1,
A plurality of stretching means (14) are provided across the plate width of the sheet guide cylinder (1),
A sheet guide cylinder characterized in that a tensioning means (14) is individually provided corresponding to each end of the partial trunk tension (A to n). In the sheet guide cylinder according to claim 1,
A plurality of stretching means (14) are provided across the plate width of the sheet guide cylinder (1),
A tensioning means (14) is individually provided corresponding to one end of each of the partial waists (A to n), and a holding means (17) is correspondingly provided to the other end. A sheet guide cylinder characterized by that. In the sheet guide cylinder according to claim 1,
The sheet guide cylinder characterized in that the holding means (17) extends over the plate width. In the sheet guide cylinder according to claim 1,
The sheet guide cylinder according to claim 1, wherein the side edges (10) of the partial waist (A to n) are provided in contact with each other over the plate width. In the sheet guide cylinder according to claim 1,
The sheet guide cylinder according to claim 1, wherein the side edge portions (10) adjacent to the partial waist (A to n) are detachably connected in a shape coupling state over the plate width.

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