JP2010201809A - Plate cylinder replacement truck - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact plate cylinder replacement truck usable in a narrow gap between printing units without setting up a plate cylinder replacement device between the printing units, and allowing an operator to easily perform an operation to replace a plate cylinder with a reduced operation load to the operator. <P>SOLUTION: The plate cylinder replacement truck includes a truck body movable to a prescribed position ahead of the printing unit of which plate cylinder is replaced, a plurality of plate cylinder holding bases horizontally held by the truck body through a lifting and lowering means vertically lifted and lowered, a plate cylinder supporting part attached to the plate cylinder holding base and having a slide mechanism movable along the forward and backward horizontal directions, and a position locator indicating the loading position of the plate cylinder in the forward and backward horizontal directions and the vertical direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a plate cylinder replacement carriage used for plate cylinder replacement work of a printing unit of a gravure rotary printing press.

  Conventionally, as a plate cylinder of a gravure rotary printing press, a shaftless plate cylinder having holes for inserting chucking cones at both ends is often used, and this shaftless plate cylinder is a chucking cone provided on the frames on both sides of the printing unit. It is to be held by. As a plate cylinder replacement work, a method using a plate cylinder replacement carriage equipped with a manual lifting device is known. The procedure for exchanging the plate cylinder using the plate cylinder exchanging carriage is to remove the ink pan and its related equipment below the printing cylinder of the printing unit, carry an empty plate cylinder exchanging carriage to that position, and move the plate cylinder support up and down. With the machine raised to the position of the plate cylinder, with the plate cylinder support part supporting the plate cylinder, remove the chucking cone, lower the plate cylinder support part with the lifting device and lower the plate cylinder, and remove the carriage from the printing unit Next, the carriage loaded with a new plate cylinder is carried into the printing unit, and while the plate cylinder support is lifted by the lifting device, positioning in the vertical direction and the front-rear direction is performed as a measure, and the chucking cone is It is the procedure of mounting.

  However, the above plate cylinder replacement work has a long flow line distance, such as replacing the old version carriage and the new version carriage and putting it in and out of the printing unit, and the work for attaching the new version cylinder to the chucking cone is very complicated. There was a problem that there was. In view of this, a plate cylinder exchange device for exchanging the plate cylinder and a plate cylinder exchange cart used for the apparatus have been proposed. For example, Patent Document 1 discloses a plate cylinder exchanging carriage having a plate cylinder that rotates 180 degrees horizontally in a plate cylinder holder that is horizontally held by a carriage main body through lifting means that moves up and down in the vertical direction. Has been. In this technology, the carriage is repeatedly moved back and forth between the printing units, and the plate cylinder is rotated inside the unit. Therefore, the carriage becomes a large carriage that matches the width dimension of the plate cylinder, and a wide unit interval is required. There was a problem that the plate cylinder might be damaged by turning the.

JP 2006-175702 A

  The present invention has been made in view of the above problems, and can be used at a narrow interval between printing units without providing a plate cylinder changing device between the printing units, so that the plate cylinder can be easily replaced with less burden on the operator. It is an object to provide a compact plate cylinder exchanging cart that can perform the above.

  The invention according to claim 1 of the present invention is held horizontally by the carriage main body through a carriage main body movable to a fixed position in front of the printing unit for exchanging the plate cylinder, and an elevating means that moves up and down in the vertical direction. A plurality of plate cylinder holders, a plate cylinder support unit provided with a slide mechanism that is attached to the plate cylinder holders and can move in the front-rear and horizontal directions, and a positioning tool that clearly indicates the horizontal and vertical stacking positions of the plate cylinders A plate cylinder exchanging cart characterized by comprising:

  The plate cylinder exchanging cart of the present invention has a compact structure including a plurality of plate cylinder holders on the upper and lower sides on which old and new plate cylinders can be loaded. If the new plate cylinder is loaded on the plate cylinder holder (new) of the plate cylinder support part that is mounted on the plate cylinder support base in advance, the plate cylinder holder of the empty plate cylinder support part can be moved to the lower part of the old plate cylinder using the slide mechanism. Slide horizontally, remove the old plate cylinder by removing the chucking cone with the old plate cylinder supported by an empty plate cylinder holder, and slide the plate cylinder support to the original position of the plate cylinder support base. The new cylinder is moved to the height of the chucking cone by moving the plate cylinder holder (old) of the plate cylinder support part attached to the plate cylinder support on which the new cylinder is loaded by the lifting means. The printing cylinder holder (new) on the printing cylinder support section loaded with the cylinder is slid horizontally to the position of the chucking cone with the slide mechanism, the chucking cone is installed, and then the carriage loaded with the old printing cylinder is printed on the printing unit. Moving outside The plate cylinder replacement of old and new plate cylinder is completed. Therefore, it is possible to exchange the old and new plate cylinders at once in the printing unit without moving and damaging the plate by carrying and setting the carriage to a fixed position in front of the printing unit for exchanging the plate cylinder. . Therefore, even if the printing unit interval is narrow, the plate cylinder replacement operation can be easily performed with less burden on the operator. In addition, the flow line of the plate cylinder replacement work is short and the work efficiency is good.

The schematic of one Example of the plate cylinder exchange trolley | bogie which concerns on this invention. Explanatory drawing explaining an example of the plate cylinder exchange operation | work of the plate cylinder exchange trolley | bogie which concerns on this invention on a side surface.

  A plate cylinder exchanging carriage according to the present invention will be described below with reference to the drawings based on an embodiment.

  FIG. 1 is a schematic view of an embodiment of a plate cylinder exchange truck according to the present invention, in which (a) is a schematic view seen from the side, and (b) is a schematic plan view. As shown in FIG. 1, in the plate cylinder exchanging carriage 1 according to the present invention, by using a lowering lever 5 and an ascending foot pedal 6, the lifting means 5 attached to the carriage main body 20 is actuated and held horizontally on the carriage main body 20. The plate cylinder holder 2 and the plate cylinder holder 4 of the plate cylinder support 3 attached to the plate cylinder holder 2 are moved up and down. Here, the elevating means 5 can be a known means such as a lift type elevating device, for example, and is installed in consideration of a battery (not shown) attached to the carriage or a solvent environment. Those which can be driven by compressed air (not shown) can be used. The elevating means 5 is provided with positioning tools 11 and 12 for clearly indicating the stacking position of the plate cylinder in the vertical direction with a scale, and the circumference of the plate cylinder with respect to the chucking cone 10 provided in the printing unit. The upper and lower positions of the plate cylinder holder 4 can be determined so that the center of the surface is located.

  Further, the plate cylinder support 3 attached to the plate cylinder holder 2 is provided with a slide mechanism, moves in the front-rear horizontal direction, and the plate cylinder holder 4 below the chucking cone 10 holding the old plate cylinder 8. , Or the new plate cylinder 9 can be moved to the position of the chucking cone 10 and the plate cylinder support 3 can be returned to the plate cylinder support 2. Each of the plate cylinder support bases 2 is provided with positioning tools 13 and 14 for clearly indicating the stacking position of the plate cylinder in the front-rear and horizontal directions with a scale, and the plate cylinder supports the chucking cone 10 provided in the printing unit. The front and rear horizontal stacking position of the plate cylinder, that is, the front and rear horizontal position of the plate cylinder holder 4 of the plate cylinder support 3 can be determined so that the center of the circumferential surface is located. As means for clearly indicating the vertical and horizontal positions, there are known methods such as reading the amount of movement of the support using a scale with a scale, or detecting the moving contact of the support electrically and displaying numerical values. It can be adopted.

  FIG. 2 is an explanatory view illustrating an example of plate cylinder replacement work of the plate cylinder replacement truck according to the present invention. (A) shows a state where a plate cylinder exchanging carriage is carried in front of the printing unit after the printing is completed. The old printing cylinder 9 which has finished printing and finished the work such as cleaning is held by a chucking cone (not shown) of the printing unit, and the new printing cylinder 8 is a printing cylinder holder (4-1) on the upper side of the printing cylinder replacement carriage 1. ). First, in (B), the plate cylinder support part (3-2) is slid from the plate cylinder holder (2-2) at the lower part of the plate cylinder replacement carriage, and the plate cylinder holder (4-2) is attached to the chucking cone. It is moved to the lower part of the installed old version cylinder 9. Next, as shown in (C), the plate cylinder holding table (2-2) is lifted by using an elevating means, and chucking is performed while the old plate cylinder 9 is held by the plate cylinder holder (4-2). Remove the cone. Next, as shown in (D), the plate cylinder support portion (3-2) is slid to return the plate cylinder holder (4-2) loaded with the old plate cylinder to its original position. Thereafter, as shown in (E), the plate cylinder holders (2-1) and (2-2) are lowered using the lifting means, and the new plate cylinder 8 is moved to the height of the chucking cone. Next, as shown in (F), the plate cylinder support (3-1) on which the new plate cylinder 8 is loaded is slid by the slide mechanism, and the plate cylinder holder (4-1) is moved to the position of the chucking cone. Let the chucking cone be installed. Next, as shown in (G), the plate cylinder holder (2-1) and the plate cylinder support portion (3-1) are lowered to remove the plate cylinder holder (4-1) from the new plate cylinder. Thereafter, as shown in (H), the plate cylinder support part (3-1) and the plate cylinder support part (3-1) are returned to the plate cylinder holder (2-1) by a slide mechanism, and then the old plate cylinder is loaded. The plate cylinder replacement work for the old and new plate cylinders is completed by moving the carriage 1 out of the printing unit.

  The above-described plate cylinder replacement operation of the above-described old and new version cylinders by the plate cylinder replacement carriage of the present invention is performed at a fixed position before the printing unit. In order to correctly move the plate cylinder to the position of the chucking cone of the printing unit, it is necessary to clarify the origin in the front-rear and left-right width directions, that is, the origin. For this reason, the plate cylinder exchanging carriage of the present invention has a fixed position in front of the printing unit by using a known means such as fitting the triangular body or L-shaped stopper and the carriage body provided in the printing unit. Although the plate cylinder replacement work is performed in a temporarily fixed state, it is possible with a simple stopper device. In general, the surface length and dimensions of the plate cylinder used in the gravure printing machine are unified, and by using the plate cylinder replacement carriage of the present invention in combination with the chucking cone position correcting mechanism, it is accurate and efficient. The plate cylinder can be easily replaced.

DESCRIPTION OF SYMBOLS 1 ... Plate cylinder exchange trolley 2,2-1,2-2 ... Plate cylinder holding stand
3, 3-1, 3-2... Plate cylinder support 4, 4-1, 4-2... Plate cylinder holder 5. pedal
8 ... New edition cylinder 9 ... Old edition cylinder 10 ... Chucking cone
11, 12 ... vertical positioning tool 13, 14 (front and rear) horizontal positioning tool 20.

Claims (1)

  A carriage main body movable to a fixed position in front of a printing unit for exchanging the plate cylinder, a plurality of plate cylinder holding bases held horizontally by the carriage main body through lifting means that move up and down in the vertical direction, and the plate cylinder A plate cylinder, comprising: a plate cylinder support portion that is attached to a holding table and includes a slide mechanism that can move in the front-rear and horizontal directions; and a positioning tool that clearly indicates the front-rear horizontal and vertical loading positions of the plate cylinder. Exchange cart.

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