JP4283261B2 - Booklet opening device for entering paper - Google Patents

Description

  The present invention relates to a booklet opening device for paper insertion in which a guide plate is inserted into a gap of a booklet traveling on a conveyance path to open the booklet, and another sheet is inserted while the booklet is opened.

  In a booklet formed by folding one or more sheets in two, a gap is created in the folded portion, that is, the central page of the booklet, and paper such as separately printed paper or booklets is inserted using the gap. Paper input devices are well known. As a mechanism for opening the central page portion of the booklet in this paper input device, a guide plate is disposed above the transport path for transporting the booklet, and the leading end portion of the guide plate is sequentially formed narrower in the direction of the back side of the booklet being transported. At the same time, it is inclined in the direction of the conveyance path, and the front end is determined at a position corresponding to the gap in the central page portion of the booklet to be conveyed.

In the mechanism for opening the central page portion of the booklet, the leading end of the guide plate is inserted into the gap between the central page portions of the folded booklet being conveyed, and the upper page portion from the central page of the booklet to the guide plate is moved along with the travel of the booklet. Accordingly, the booklet edge is opened upward from the lower page part along the center of the booklet, so that separately printed sheets can be inserted from the booklet edge of the opened booklet.

  However, since the gap in the central page portion of the booklet is as narrow as several millimeters, the position of the tip of the guide plate needs to be accurately positioned in accordance with the slight gap in the central page portion of the booklet. On the other hand, the guide plate must be supported at a position far from the front end of the guide plate because it is necessary to avoid the booklet passing range. For this reason, the front end of the guide plate is easy to vibrate, and the front end of the guide plate is always accurate. There is a problem in that it may not be possible to maintain the correct position, and paper may be inserted between incorrect pages. Further, when the thickness of the booklet is changed and the gap position of the central page portion of the booklet is changed, there is a problem that the adjustment is troublesome such as replacing the guide plate.

  The problem to be solved by the present invention is to always maintain the tip of the guide plate at an accurate position, and to be able to easily cope with the change of the gap position of the central page portion of the booklet, This is to eliminate such a problem.

  The present invention includes a guide plate that is arranged along the transport path above the transport path for transporting the booklet and that is formed narrow in order in the back side direction of the booklet to be transported. Insert the leading edge of the guide plate into the gap between the central page portions of the booklet, open the central page portion of the booklet with the guide plate as the booklet travels, and insert other paper into the central page portion of the open booklet. A booklet opening device for paper input, wherein a pusher capable of appearing and retracting is provided on the conveyance path, and the pusher protrudes from the conveyance path after passing through the booklet to guide the leading end of the guide plate. The main feature is that the guide plate is pushed and supported against the elasticity of the plate, and the leading end of the guide plate is positioned at a position corresponding to the gap of the central page portion of the booklet to be conveyed.

  The main feature of the present invention is that the front end of the guide plate is supported and supported by the pusher against the elasticity of the guide plate until it reaches the gap in the central page of the booklet to which the front end of the guide plate is conveyed. The leading end of the guide plate can always be maintained at an accurate position corresponding to the gap in the central page portion of the booklet being conveyed, and papers can be prevented from being inserted between incorrect pages. Further, it is possible to easily cope with a change in the gap position of the central page portion of the booklet only by adjusting the amount protruding from the pusher conveyance path.

In the booklet opening device for paper insertion, in which the front end of the guide plate is inserted into the gap between the central page portions of the folded booklet being conveyed, and the central page portion of the booklet is opened with the guide plate as the booklet travels, The leading edge of the guide plate can be maintained at an accurate position corresponding to the gap in the central page portion of the booklet being conveyed, and can be easily adapted to changes in the gap position in the central page portion of the booklet. the purpose of, and achieved by supporting pressed by pusher retractably on the transport path against the tip of the guide plate to the elastic force of the guide plate.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing a configuration of a paper entry booklet opening apparatus according to the embodiment, and FIG. 2 is a cross-sectional view taken along line AA of FIG.

  1 and 2, reference numeral 1 denotes a conveyance path composed of a plate body on which a booklet travels, 2 denotes a conveyance push claw which is fixed to the conveyance chain 2a and pushes the booklet, 3 is a folded booklet (3a is a back, 3b is a small edge) ) 4 is a guide plate, 5 is a paper stacking shelf, 6 is paper, 7 is a paper feed roller, 8 is a pusher, 9 is an air cylinder, 10 is a thumbscrew, 11 is an air cylinder support block, 12 is a guide shaft, 13 Is a machine frame, 14 is a guide plate support block, and 15a and 15b are booklet detectors.

  The conveyance path 1 is inclined and has a step 1a that abuts the back 3a of the booklet 3 conveyed to the side edge. The booklet 3 conveyed by the conveyance push claw 2 abuts the back 3a on the step 1a. And run. The guide plate 4 is supported by a guide plate support block 14 installed at a position where it does not interfere with the travel of the booklet 3 and is positioned so as to cover the upper part of the transport path 1, and its leading end 4 a is the back surface 3 a of the booklet 3 to be transported. It is formed so as to be narrower in the lateral direction and is inclined toward the conveyance path 1, and its tip 4b is in a position close to the conveyance path surface 1 slightly apart from the step 1a.

The pusher 8 can be projected and retracted with respect to the transport path 1 and is disposed on the transport path 1 side facing the front end 4a of the guide plate 4. When the pusher 8 protrudes from the transport path 1, the front end 4a of the guide plate 4 is moved to the guide plate. The guide plate 4 is pushed up and supported so that the tip 4b of the guide plate 4 faces a gap in the central page portion of the booklet 3 to be conveyed. Pusher 8 is fixed to the distal end of the piston d Ashirinda 9 retreats from the conveying path 1 by supplying air to the air cylinder 9 protrudes from the upper conveying path 1 pull by removing the air.

  The air cylinder 9 is fixed to an air cylinder support block 11, and the air cylinder support block 11 is slidably held on a guide shaft 12 fixed to a machine frame 13 and meshes with a screw of a thumbscrew 10. For example, when the thumbscrew 10 is rotated clockwise, the air cylinder 9 is raised, and when the thumbscrew 10 is rotated counterclockwise, it is lowered. The vertical movement is performed below the conveyance path 1.

  When the thickness of the booklet 3 to be conveyed is thick, that is, when the gap of the central page portion of the booklet 3 is high with respect to the conveyance road surface 1, the thumbscrew 10 is rotated clockwise to raise the air cylinder 9, thereby 3, the pusher 8 is raised, and the pusher 8 is positioned at a position facing the gap of the central page portion of the booklet 3 to which the guide plate 4 is conveyed with the pusher 8 protruding from the conveyance path surface 1. Further, when the thickness of the booklet 3 to be conveyed is thin, that is, when the gap of the central page portion of the booklet 3 is low with respect to the conveyance road surface 1, the thumbscrew 10 is rotated counterclockwise to lower the air cylinder 9, As a result, the pusher 8 is lowered as shown in FIG. 4 so that the front end 4b of the guide plate 4 is opposed to the gap in the central page portion of the booklet 3 being conveyed with the pusher 8 protruding from the conveyance path surface 1. Position. In either case, when the pusher 8 is retracted, it is retracted from the conveyance path 1.

  In the booklet opening device configured as described above, the position of the pusher 8 that is rotated from the conveyance path surface 1 by adjusting the thumbscrew 10 is adjusted, and the front end 4b of the guide plate 4 is conveyed at the central page portion of the booklet 3 that is conveyed. Position it at a position facing the gap. As a result, the leading end 4b of the guide plate 4 is inserted into the gap between the central page portions of the booklet 3 being conveyed, and the upper page portion from the center page of the booklet 3 along the guide plate 4 as the booklet 3 travels. The fore edge 3b of the booklet 3 that opens upward from the central page portion reaches the paper supply unit, and the paper 6 taken out from the paper stacking shelf 5 by the paper feed roller 7 and transported is fed to the open booklet 3 Insert from the edge 3b.

  In this embodiment, a booklet detector composed of a light projecting element 15a and a light receiving element 15b is disposed immediately before the tip 4b of the guide plate 4, and the air cylinder 9 is evacuated by detecting the tip of the traveling booklet 3. Then, the pusher 8 is pulled in and retracted from the conveyance path 1. The front end 4b of the guide plate 4 can be reliably inserted into the gap of the central page portion of the booklet 3 without interfering with the booklet 3 traveling by the retraction. Then, air is supplied to the air cylinder 9 by detecting the rear end of the traveling booklet 3, and the pusher 8 is protruded from the conveyance path 1, and the front end 4a of the guide plate 4 is pushed and supported to stand by. Note that the push-in / out timing of the pusher 8 is controlled by the booklet detector detecting the leading edge / rear edge of the booklet and knowing the number of pulses of the encoder or the like for the conveyance length.

It is a top view which shows the structure of the booklet opening apparatus for paper_feeding based on the Example of this invention. It is AA sectional drawing of FIG. It is adjustment operation explanatory drawing of the booklet opening apparatus for paper_feeding based on the Example of this invention. It is adjustment operation explanatory drawing of the booklet opening apparatus for paper_feeding based on the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveyance path 2 Conveyance pushing claw 3 Booklet 4 Guide plate 4a Guide plate tip 4b Guide plate tip 5 Paper stacking shelf 6 Paper 7 Paper feed roller 8 Pusher 9 Air cylinder 10 Thumb screw 11 Air cylinder support block 12 Guide shaft 13 Machine frame 14 Guide plate support blocks 15a, 15b Booklet detector

Claims (2)

  The center of the bi-folded booklet that is transported is provided with a guide plate that is arranged along the transport path above the transport path for transporting the booklet and is formed narrow in order in the back side direction of the booklet that is transported. Inserting the leading edge of the guide plate into the gap of the page portion, opening the central page portion of the booklet with the guide plate as the booklet travels, and inserting other paper into the central page portion of the open booklet The booklet opening device is provided with a pusher capable of appearing and retracting on the conveyance path, and the pusher protrudes from the conveyance path after passing the booklet until immediately before passing to make the tip of the guide plate elastic to the guide plate. A booklet opening device for receiving paper, wherein the booklet opening device is configured to press and support the guide plate at a position corresponding to a gap in a central page portion of the booklet to be conveyed.   The booklet opening for paper input according to claim 1, wherein the pusher is fixed to a piston of an air cylinder and can be adjusted in a vertical position according to a gap position of a central page portion of the booklet conveyed through the air cylinder. apparatus.

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