JP2005075504A - Stacking apparatus of cleaned printing plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stacking apparatus for vertically stacking cleaned printing plates, orderly stacking the printing plates without the application of wind pressure and impact. <P>SOLUTION: This stacking apparatus is composed of: a receiving conveyer 15 installed adjacent to a feed roller 12 of a cleaning machine 11 and formed of a belt conveyer extended horizontally in the feed direction of the cleaned printed plate 13; a succeeding expansion conveyer including a grid-like expansion conveyer body 17 expanded and contracted forward and backward through an expansion mechanism in a front area in the delivery direction of a printed plate 13 from the immediately down part of the receiving conveyer 15; and an elevating receiving plate 26 disposed in the lower part of the expansion and contracting area of the succeeding expansion conveyer and elevated through an elevating mechanism. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention is for stacking stacked printing plates, such as corrugated board printing plates, which are sent out sequentially from a washing machine, in the upper and lower sides, adjacent to the washing machine. It relates to the stack device.

  As shown in FIG. 6, a printing plate stacking apparatus for printing a corrugated cardboard plate that has been washed is installed adjacent to the downstream side of the feed roller 12 of the washed printing plate 13 of the washing machine 11. 13, each of the washed printing plates 13 sent from the washing machine 11 is sent onto the inclined cradle 35, and initially on the inclined surface. After that, it is known that they are stacked while sliding on the preceding printing plate 13.

  Further, as shown in FIG. 7, the printing plate 13 includes a movable nipper 36 that can move horizontally in the front-rear direction, and a stationary receiving plate 37 that is installed at a lower portion of the moving area of the movable nipper 36. The tip of each cleaned printing plate 13 delivered from the washing machine 11 is added with a movable nipper 36, and the movable nipper 36 is moved forward in the delivery direction of the printing plate 13 at the same speed as its delivery speed. Then, the printing plate 13 is pulled out in a horizontal tension state in the delivery direction, and the holding by the movable nipper 36 is released immediately after the end portion of the printing plate 13 leaves the washing machine 11, so that the printing plate 13 is placed on the receiving plate 37. It is also known that they are dropped and stacked.

  In addition, it is not intended for printing plates for printing corrugated board, but a stationary horizontal receiving stand is provided adjacent to the feeding end of the belt conveyor, and the printing plate is received from the belt conveyor. Alternatively, it is also known that the sheets are fed while being slid on the preceding printing plate (for example, see Patent Document 1).

However, in the above-described known stack apparatus, the inclined cradle type shown in FIG. 6 is caught especially when the succeeding printing plate 13 slides on the preceding printing plate 13, and the feeding is disturbed, broken or broken. In addition, the movable nipper / receiving plate type shown in FIG. 7 is broken or damaged by the wind pressure received while the printing plate 13 is dropped on the receiving plate 37 or the impact when dropped. In addition, there is a problem that the stacked state is disturbed because it is easily displaced in the lateral direction by the wind pressure during the fall. Further, for example, the belt conveyor / horizontal cradle type described in Patent Document 1 is caught in the same manner as the inclined cradle type in FIG. Therefore, there is a problem of breakage or breakage.
JP 2002-308513 A

  SUMMARY OF THE INVENTION In view of the above-mentioned problems recognized by known devices, the present invention provides a device for stacking printing plates in an orderly manner in a state where wind pressure and impact do not act as a stacking device for washed printing plates. Is a major issue.

  According to the present invention, as described in claim 1 of the present invention, the above-described problems are solved by the receiving conveyor extending horizontally in the feeding direction of the washed printing plate, and the printing plate from the lower portion of the receiving conveyor. The problem is solved by a washed printing plate stacking device comprising a joint stretchable conveyor that can be stretched back and forth in the front area in the delivery direction and a receiving plate that is installed to be movable up and down at the lower part of the stretchable area of the joint stretchable conveyor.

  In the washed printing plate stacking apparatus according to the present invention, in general, the receiving plate is always positioned directly below the transfer conveyor by intermittent or continuous lowering operation after raising and lowering the receiving plate. For each cleaned printing plate sent from the washing machine, the receiving conveyor is operated at the same speed as the printing plate sending speed, and is received by the receiving conveyor from the rear end, and from the front (front) end. A printing plate section that is sent in a suspended state while the transferable conveyor is extended from the front (front) end at a speed approximately equal to the delivery speed of the washed printing plate and is sent in a suspended state from the receiving conveyor. After receiving the entire printing plate on the extended stretchable conveyor, the shrinkable conveyor is contracted from the front end side and the printing plate is suspended from the front end where support is lost. However, after the receiving plate is received and the entire expansion / contraction conveyor is completely contracted in the lower part of the receiving conveyor, the entire printing plate is delivered to the receiving plate. Are stacked one on top of the other.

  In this invention, as described in claim 2, the inheriting telescopic conveyor is preferably arranged with a plurality of belt hanging bars extending in the lateral (left and right) direction and arranged adjacent to each other at intervals in the front-rear direction. A structure is provided that includes a lattice-like telescopic conveyor body that is formed of a plurality of narrow belts that are stretched between belt belt bars in a transverse direction with a space therebetween.

  Further, in the present invention, as described in claim 3, the narrow belt of the telescopic conveyor body is preferably endless.

  According to the apparatus for stacking washed printing plates according to the first aspect of the present invention, each washed printing plate is delivered in a suspended state from the leading end onto a joint expansion / contraction conveyor extending directly below the receiving conveyor. Then, it is delivered and deposited from the leading end side to the printing plate receiving part of the receiving plate just below it from the shrinking joint stretchable conveyor, so there is no wind pressure or impact throughout, and there is no It can be stacked in a damaged and orderly manner.

  Further, according to the inherited stretchable conveyor having the stretchable conveyor body according to claim 2 of the invention, the cleaning liquid is not easily attached from the viewpoint of air circulation due to the grid-like arrangement with the narrow belts spaced apart. However, it is easy to dry, and there is almost no fear that the cleaning liquid is transferred to the washed printing plate.

  Furthermore, according to the endless configuration of the narrow belt of the telescopic conveyor main body according to claim 3, the telescopic belt main body can be easily manufactured by attaching (wrapping) the endless narrow belt to the adjacent belt hanging bar. Manufacturing cost is low.

  Embodiments of a stack apparatus for washed printing plates according to the present invention will be described below with reference to the drawings.

  In the illustrated form, the receiving conveyor 15 is formed of a belt conveyor having a short length, and the washed printing plate 13 fed through the feeding roller 12 of the washing machine 11 is moved to the rear end (upstream end). And is sent in a suspended state from the front end portion (downstream end portion) toward the inheriting telescopic conveyor 16.

  The stretchable telescopic conveyor 16 tensions a plurality of endless narrow belts 19 in a lateral direction between adjacent belt hanging bars 18 of a plurality of belt hanging bars 18 arranged at intervals in the front-rear direction. It has a lattice-shaped stretchable conveyor body 17 that is loosely stretched, and each end of each belt-hanging bar 18 other than the belt-hanging bar 18 at the rear end of the stretchable conveyor body 17 is slidably engaged. , A pair of left and right telescopic guide rails 21 extending horizontally in the front-rear direction and a pair of timing belts 22 extending horizontally between the front-rear belt pulleys 22 fixed to the end portions of the front belt hooking bar 18 and the rear drive side. A telescopic mechanism 20 including a reversible motor 24 for reversible rotation of the belt pulley 22 is provided.

  This transfer expansion / contraction conveyor 16 rotates the reversible motor 24 constituting the expansion / contraction mechanism 20 in the forward direction by the reception signal of each printing plate 13 by the photoelectric sensor 25 installed in the vicinity of the upstream end of the reception conveyor 15, The timing belt 22 is caused to travel forward, whereby the telescopic conveyor body 17 is extended from the front end side at an extension speed substantially equal to the delivery speed of the printing plate 13 and is sent from the receiving conveyor 15 in a suspended state. 13 is received, while the reversible motor 24 is reversely rotated based on the reception completion (delivery completion) signal of each printing plate 13 by the photoelectric sensor 25, and the timing belt 22 is caused to travel backward, whereby the whole is extended. The telescopic conveyor body 17 is contracted from the front end side, and the printing plate 13 is transferred to the receiving plate 26 in a suspended state.

  The receiving plate 26 is rectangular, and at each corner part, an elevating guide rod 28 extending up and down, which constitutes an elevating mechanism 27 together with a wire rope 29, a rope pulley 30, a rope drum 31 and a reversible motor 32, is slidably engaged, The wire rope 29 is connected, and initially, by the normal rotation of the reversible motor 32, the surface of the photoelectric sensor 25 is received or received after the surface of the photoelectric sensor 25 is in the highest rising position, which is located immediately below the inheriting telescopic conveyor 26. As the number of stacked printing plates 13 counted based on the end signal increases, the reversible motor 32 is gradually lowered by the intermittent or continuous reversal of the printing plate 13, and the uppermost portion of the uppermost stacked and stacked with the transfer telescopic conveyor 16 is stacked. The configuration is such that the printing plate 13 is received while maintaining a substantially constant distance from the printing plate 13.

  In addition to this, the cleaning printing plate stacking apparatus of the present invention uses a chain type instead of a belt type as an expansion / contraction mechanism of a joint expansion / contraction conveyor, or replaces a wire rope type as an elevation mechanism of a receiving plate, The present invention can be implemented in various forms, such as using a Chien formula, and is not limited to the above form.

It is a schematic side view at the time of partial extension of the joint expansion and contraction conveyor of the main part of one embodiment of the stack apparatus for washed printing plates according to the present invention. It is a schematic side view at the time of partial shrinkage | contraction of the inheritance expansion-contraction conveyor of the principal part of embodiment shown in FIG. It is an enlarged side view at the time of partial expansion of the inheritance telescopic conveyor. It is an enlarged plan view at the time of partial expansion of the inherited telescopic conveyor. It is an enlarged side view of the raising / lowering mechanism of a receiving plate. It is a schematic side view of the principal part of a well-known one stack apparatus. It is a schematic side view of the principal part of another well-known stack apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Washing machine 12 Delivery roller 13 Printing plate 15 Receiving conveyor 16 Succession telescopic conveyor 17 Telescopic conveyor main body 18 Belt hanging bar 19 Narrow belt 20 Telescopic mechanism 21 Telescopic guide rail 22 Timing belt 23 Belt pulley 24 Reversible motor 25 Photoelectric sensor 26 Receiving plate 27 Elevating mechanism 28 Elevating guide rod 29 Wire rope 30 Rope pulley 31 Rope drum 32 Reversible motor

Claims (3)

  A receiving conveyor that extends horizontally in the delivery direction of the washed printing plate, a joint stretchable conveyor that can extend back and forth in the forward direction in the printing plate delivery direction from directly below the receiving conveyor, and a stretchable region of the joint stretchable conveyor A printing plate stacking device comprising a receiving plate installed in a lower part of the plate so as to be movable up and down.   The stretchable telescopic conveyors are arranged in a line in the front-rear direction with a plurality of belt-hanging bars extending in the lateral direction and between each adjacent belt-hanging bar with a space in the horizontal direction so that tension can be relaxed. 2. The washed printing plate stacking apparatus according to claim 1, further comprising a grid-like stretchable conveyor body composed of a plurality of narrow belts.   3. The washed printing plate stacking apparatus according to claim 2, wherein the narrow belt is endless.

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