JP5770485B2 - Method and apparatus for detecting sheet-like corner breakage of sheet-fed printing press - Google Patents

Description

  The present invention relates to a detection method and a detection apparatus for detecting a corner break of a sheet-like object that stops in contact with a front end of a front end of a difference plate in a sheet-fed printing press.

  In a sheet-fed printing press, the paper loaded on the paper stack of the paper feeder is sucked one by one from the upper layer by the sucker device and sent out onto the feeder board. It is sent out on the board. The paper is aligned and stopped in the vertical direction by the front end of the difference plate, and the horizontal direction is aligned by the horizontal needle device. The paper stopped in front of the front is carried by the nail of the swing device and conveyed, and is printed while being carried by the nail of the impression cylinder of the printing unit.

  The paper supplied to the printing unit in this way must be supplied one at a time without being distorted or broken. Detecting and holding by the nail and feeding on the difference plate are stopped. Of these types of fraudulent paper, the folded paper is a paper with the right edge (right edge) or the left edge (left edge) of the front edge (front edge) folded in a triangular shape, and this corner break is detected. In the past, a photoelectric detector was installed several millimeters above the front cover, and the presence or absence of reflected light from the paper that stopped on the front cover was detected. And corner breakage is detected. And when the paper size changed, the detector was moved.

JP 57-95463 A JP 63-71049 A Japanese Utility Model Publication No. 61-38159

  However, since the conventional detector (sensor) is fixed to the rod extending in the left-right direction with a screw as in Patent Document 1, the screw is loosened every time the paper size changes. The position in the left-right direction was adjusted so that each detector was positioned at the corners on both sides in the left-right direction of the paper, and then the screws were fixed to fix each detector.

  Therefore, there is a problem that it takes time to adjust the position of each detector, the operating rate is lowered, and the operator is burdened.

  Therefore, the detector disclosed in Patent Literature 2 is provided with a pair of laterally arranged near the detectors in the left-right direction, and the horizontal position is automatically adjusted according to the paper size of the paper. It is conceivable to adjust the horizontal position of the detector simultaneously with the horizontal needle device, but only one of the pair of horizontal needle devices is always used, and the other is paper feeding to the printing unit. Therefore, there is a problem that a corner portion of one paper cannot be detected.

  The present invention has been proposed in view of such a situation, and a pair of angle break detectors provided integrally with the left and right horizontal needle devices are set according to the setting of which horizontal needle device is used. The sheet type of a sheet-fed printing press that can automatically select which one of the pair of corner break detectors to use, thereby increasing the operating rate and reducing the burden on the operator. An object of the present invention is to provide an object breakage detection method and a detection apparatus.

In order to solve the above problem, a sheet-like corner detection method for a sheet-fed printing press is:
A left side needle device that aligns the left end side position of each sheet-like material supplied to the printing unit from the sheet feeder of the sheet-fed printing press;
A right side needle device for aligning the right end side position of each sheet-like material supplied to the printing unit from the sheet feeder of the sheet-fed printing press;
Presence or absence of the sheet-like material at the left end and the right end of the front end portion of the sheet-like material provided at the downstream side in the conveying direction of the sheet-like material from the horizontal needle device and aligned by the one horizontal needle device. A detector to detect;
In a sheet-fed printing press equipped with
As the detector,
A first left end detector supported by the left side needle device;
A second left end detector supported by the left lateral needle device and provided at a position away from the first left end detector toward the center in the left-right direction;
A first right end detector supported by the right lateral needle device;
A second right end detector supported by the right side needle device and provided at a position away from the first right end detector toward the center in the left-right direction;
And providing
When the left lateral needle device is selected from the pair of lateral needle devices, a first left end detector supported by the left lateral needle device and a first lateral end device supported by the right lateral needle device. Only the right end detector of 2 detects the presence or absence of the sheet at the left end and the right end of the front end of the sheet,
When the right side lay device is selected by only the first right-hand end detector and a second left end detector that is supported by the left side lay device which is supported on the right side lay device Detecting the presence or absence of the sheet-like material at the right end and the left end of the front end of the sheet-like material,
It is characterized by that.

In order to solve the above problems, a sheet-like object corner breakage detection apparatus of a sheet-fed printing press is
A left side needle device that aligns the left end side position of each sheet-like material supplied to the printing unit from the sheet feeder of the sheet-fed printing press;
A right side needle device for aligning the right end side position of each sheet-like material supplied to the printing unit from the sheet feeder of the sheet-fed printing press;
Presence or absence of the sheet-like material at the left end and the right end of the front end portion of the sheet-like material provided at the downstream side in the conveying direction of the sheet-like material from the horizontal needle device and aligned by the one horizontal needle device. A detector to detect;
In a sheet-fed printing press equipped with
As the detector,
A first left end detector supported by the left side needle device;
A second left end detector supported by the left lateral needle device and provided at a position away from the first left end detector toward the center in the left-right direction;
A first right end detector supported by the right lateral needle device;
A second right end detector supported by the right side needle device and provided at a position away from the first right end detector toward the center in the left-right direction;
And providing
When the left lateral needle device is selected from the pair of lateral needle devices, a first left end detector supported by the left lateral needle device and a first lateral end device supported by the right lateral needle device. The presence or absence of the sheet at the left end and the right end of the front end of the sheet is detected only by the signal from the right end detector of 2;
When the right lateral needle device is selected, from the first right end detector supported by the right lateral needle device and the second left end detector supported by the left lateral needle device . The present invention is characterized in that a control device is provided that detects the presence or absence of the sheet-like material at the right end and left end of the front end of the sheet-like material only by a signal .

  According to the above-described sheet-like-material corner-folding detection method and detection device for a sheet-fed printing press according to the present invention, a pair of first and second left end detectors provided integrally with the left and right lateral needle devices, respectively. And the first and second right side edge detectors depending on the setting of which one of the left side and right side horizontal needle device is used, a pair of first and second left side edge detectors and first and second right side detectors Of the edge detectors, the first or second left edge detector and right edge detector to be used are automatically selected, increasing the operating rate and reducing the burden on the operator. be able to.

It is a hardware block diagram of the control apparatus of the motor for a left side edge part and right side edge part detector and a left side and right side horizontal needle apparatus movement in one Example of this invention. It is a hardware block diagram of the control apparatus of the motor for a left side edge part and right side edge part detector and a left side and right side horizontal needle apparatus movement in one Example of this invention. It is an operation | movement flowchart of the control apparatus of the motor for a left side edge part and right side edge part detector and the left side and right side horizontal needle apparatus movement in one Example of this invention. It is an operation | movement flowchart of the control apparatus of the motor for a left side edge part and right side edge part detector and the left side and right side horizontal needle apparatus movement in one Example of this invention. It is an operation | movement flowchart of the control apparatus of the motor for a left side edge part and right side edge part detector and the left side and right side horizontal needle apparatus movement in one Example of this invention. It is an operation | movement flowchart of the control apparatus of the motor for a left side edge part and right side edge part detector and the left side and right side horizontal needle apparatus movement in one Example of this invention. It is an operation | movement flowchart of the control apparatus of the motor for a left side edge part and right side edge part detector and the left side and right side horizontal needle apparatus movement in one Example of this invention. It is a schematic block diagram of a sheet-fed printing press. It is a top view of a registration part. It is the sectional view on the AA line of FIG. FIG. 6 is a view taken in the direction of arrow B in FIG. 5. It is CC sectional view taken on the line of FIG. It is the DD sectional view taken on the line of FIG. It is a front view of a left side edge part and a right side edge part detector. It is a top view of a left side edge part and a right side edge part detector.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a sheet-like object corner breakage detection method and detection apparatus for a sheet-fed printing press according to the present invention will be described in detail with reference to the accompanying drawings.

  1A and 1B are hardware block diagrams of a control device for the left and right side edge detectors and the left and right lateral needle device moving motors in one embodiment of the present invention, and FIGS. 2A to 2C are diagrams of the present invention. FIG. 3A and FIG. 3B are an operation flow diagram of the left and right side edge detectors and the left and right side needle device moving motor control devices in one embodiment. FIG. 3A and FIG. FIG. 4 is a schematic configuration diagram of a sheet-fed printing press, FIG. 5 is a plan view of a registration unit, and FIG. 7 is a cross-sectional view taken along the line B in FIG. 5, FIG. 8 is a cross-sectional view taken along the line CC in FIG. 5, FIG. 9 is a cross-sectional view taken along the line DD in FIG. FIG. 10B is a front view of the right end detector, and FIG. 10B is a plan view of the left end and right end detector.

  As shown in FIG. 4, in the sheet-fed printing machine, the paper (sheet-like material) W fed out from the paper feeding device 10 is temporarily stopped by a front pad 11 and then left side needle device 12A or right side needle device. It is pulled by 12B, and positioning is made to the front and lateral contact regulation position. That is, registration between the vertical direction and the horizontal direction is performed.

  Thereafter, the first color is printed by the ink transferred to the impression cylinder 15 of the first printing unit 14a in the printing apparatus 14 by the nail of the swing 13 and transferred to the rubber cylinder 17 by the plate cylinder 16. The The paper W on which the first color printing has been performed is sent to the second printing unit 14b through the intermediate cylinder 18, and the second color printing is performed. Thereafter, the paper is transferred from the transfer cylinder 19 to the receiving cylinder 20, and is then put on a claw of the transport chain 21 and discharged to the paper discharge device 22.

  As shown in FIG. 5, the registering unit is configured such that a difference plate 32 is horizontally mounted via a bracket 31 between the left and right machine base frames 30, and the left and right machine bases are positioned above the difference plate 32. On the stay 33 laid horizontally between the frames 30, a plurality of sheet springs 35 for suppressing paper breakage are supported in the left-right direction via a bracket 34. In the vicinity of the front end portion of the difference plate 32, the above-described front pads 11 are arranged at a plurality of positions in the left-right direction, and each of them can advance and retract to the use position and the retreat position.

  As shown in FIGS. 6 to 9, a cam shaft 36 that is connected to the shaft on the driving side by a coupling (not shown) and rotates is mounted between the left and right machine base frames 30. Right above the cam shaft 36, a corner stay 37 is supported with both ends fixed to the machine frame 30.

The left and right lateral needle devices 12A and 12B described above are formed completely symmetrical to each other and are supported by the cam shaft 36 and the angular stay 37 in close proximity to the left and right machine base frames 30, respectively. Photoelectric end detectors for detecting corner breaks of the paper W are integrally assembled with the left and right lateral needle devices 12A and 12B. That is, the first left edge detector 125A and the second left edge detector 125B is supported spaced apart by a predetermined distance L ₁ in the lateral direction on the left side lay device 12A, first to the right side lay device 12B The first right end detector 126A and the second right end detector 126B are supported by being separated by a predetermined distance L _{2 in the} left-right direction (see FIG. 5).

  In addition, a horizontal plate-shaped paper guide portion 37a is fixedly provided at the central portion of the corner stay 37 in the left-right direction. 12B, turtle shell-shaped paper guides 38A and 38B are interposed in a plan view that is guided by the corner stay 37 and can be expanded and contracted in the left-right direction (see FIG. 5).

  The left and right lateral needle devices 12A and 12B have the same structure and are arranged symmetrically on the corner stay 37 with the paper guides 38A and 38B interposed therebetween. The apparatus 12A will be described as an example.

  The paper cradle 40 of the left side needle device 12A is formed by a main body 40a and an upper plate 40b, and is integrated by bolting the upper plate 40b to the main body 40a and is fitted into a corner stay 37 (see FIG. 6 and FIG. 9). Further, an inner ring of a cam 41 having cam surfaces 41 a and 41 b having crests and troughs at the outer peripheral portions of both end surfaces is fixed to the cam shaft 36. Is fitted and fixed to a circular boss formed on the main body 40a.

  Reference numeral 42 in FIGS. 6 and 8 denotes a paper receiving roller that is supported by a bearing portion of the paper receiving base 40 with a part of the outer periphery entering a hole provided in the upper plate 40 b of the paper receiving base 40. The cam follower 43 that contacts the cam surface 41b of the cam 41 is pivotally attached to the outer periphery of the upper plate 40b.

  Between the pivot of the cam follower 43 and the spring hook 44 projecting from the main body 40a of the paper receiving tray 40, a tension spring 45 that urges the paper receiving roller 42 with rotational force in a direction in which the cam follower 43 is pressed against the cam surface 41b. As the cam 41 rotates together with the cam shaft 36, the paper receiving roller 42 reciprocates at a predetermined cycle as indicated by an arrow F in FIG. It is configured.

  In addition, a horizontal roller arm 46 and a trident cam lever 47 are pivotally supported on the bearing portion 40c provided on the paper receiving tray 40 so as to overlap with each other so as to have the same phase in the front and rear. The presser roller 48 pivotally attached to the free end portion of the roller arm 46 is positioned immediately above the paper receiving roller 42 and is in contact therewith. The cam follower 49 pivotally attached to the lower end portion of the cam lever 47 is in contact with the cam surface 41a of the cam 41 (see FIG. 9).

  A compression coil spring 50 is interposed between the roller arm 46 and the cam lever 47 so as to rotate them in directions opposite to each other. A pin 51 with a knob for restricting the rotation is fitted in a freely rotatable manner with the tip abutting against the cam lever 47 (see FIG. 8).

  Reference numeral 52 in FIG. 8 denotes a bolt that is screwed into the roller arm 46 and adjusts the urging force of the compression coil spring 50, and reference numeral 53 denotes a nut that fixes the bolt 52 at the adjustment position. Reference numeral 54 denotes a guide bolt screwed into the roller arm 46 and having its tip end engaged with a hole of the cam lever 47, to which a fixing nut 55 is screwed.

  A compression coil spring 56 is loaded below the horizontal free end of the cam lever 47 in the hole of the main body 40a of the paper receiving tray 40, and the rotational force in the direction in which the cam follower 49 is pressed against the cam surface 41a of the cam 41 is provided. The cam lever 47 is provided. On the other hand, a presser plate 57 that is in contact with the upper plate 40b of the paper cradle 40 is integrally formed at the tip of the roller arm 46, and the paper W is inserted between the presser plate 57 and the upper plate 40b. It has become so. In FIG. 8, reference numeral 58 denotes a lateral pad (gauge) that makes the side edges of the paper W abut and aligns the left and right registers.

  Further, as shown in FIG. 8, a stopper 59 for restricting the presser roller 48 to a non-operating state at the time of a stylus (when the left lateral needle device 12A is not used) is provided at the tip of the pin 51 with the knob. It is attached so as to be orthogonal to. More specifically, the stopper 59 is positioned in the long groove 46a on the lower surface of the roller arm 46 so that the presser roller 48 is brought into contact with the paper receiving roller 42 when the needle is pulled (when the left lateral needle device 12A is used). . However, at the time of piercing, the stopper 59 is rotated 90 degrees after escape from the long groove 46a and is positioned at the general part 46b on the lower surface of the roller arm 46, so that the roller arm 46 side with respect to the cam lever 47 side. As indicated by a chain line in the figure, the presser roller 48 is forcibly rotated counterclockwise to separate the presser roller 48 from the paper receiving roller 42, and the presser roller 48 is inactivated. In the illustrated example, a shallow groove 46c orthogonal to the long groove 46a is formed in the general portion 46b on the lower surface of the roller arm 46 so that the stopper 59 can be positioned at the time of the stylus.

  With this configuration, when paper feeding is started, the cam 41 rotates together with the cam shaft 36, and the paper receiving roller 42 is rotated in one reciprocation per rotation of the cam 41 by the action of the cam surface 41b in FIG. It reciprocates in the direction of arrow F. Further, the cam lever 47 reciprocates while expanding and contracting the compression coil spring 56 by one reciprocation per rotation of the cam 41 by the action of the cam surface 41 a, and the pin 51 is applied to the cam lever 47 by the urging force of the compression coil spring 50. The contacted roller arm 46 also swings together. Accordingly, the presser roller 48 moves up and down so as to come into contact with or separate from the paper receiving roller 42.

  When the presser roller 48 is raised and the presser plate 57 and the upper plate 40b are open, the paper W is fed onto the differential plate 32 and inserted between the presser plate 57 and the upper plate 40b. At the same time, the presser roller 48 descends and the paper receiving roller 42 rotates counterclockwise in FIG. 8, so that the paper W is sandwiched between both rollers 48 and 42 and moves to the left in FIG. The side edges are brought into contact with the lateral pad 58 to align the left and right directions. Prior to this, the front end of the paper W is brought into contact with the front pad 11 and the registration in the vertical direction is aligned. Then, when the presser roller 48 is raised next time, the paper W is held by the nail of the swing 13 and is carried away to the first printing unit 14a in the printing apparatus 14, and the next paper W is fed and the operation described above. repeat. Although the horizontal needle device has been briefly described above, the detailed description is omitted because it has substantially the same configuration as the horizontal needle device disclosed in Patent Document 3 by the present applicant.

  When printing on the back surface of the paper W printed in this way, the paper W stacked by the paper discharge device 22 after printing is turned over and moved to the paper supply device 10 to feed paper one by one. And print on the back side. In this case, since the paper end, which is a reference for registration by the left and right lateral needle devices 12A and 12B, is on the opposite side to the case of printing on the front surface, the so-called pulling needle must be switched to the projecting needle.

  Therefore, the left lateral needle device 12A is moved to the retracted position by a left lateral needle device moving mechanism and a left lateral needle device moving drive source, which will be described later, and the presser roller 48 is switched from the operating state to the non-operating state by the method described above. The right lateral needle device 12B is moved to the use position corresponding to the paper size by the right lateral needle device moving mechanism and the right lateral needle device moving drive source, and the presser roller 48 is changed from the inoperative state to the activated state as described above. Switch. As described above, since the photoelectric detectors 125A, 125B, 126A, 126B for detecting the corner breakage of the paper W are integrally assembled to the left and right lateral needle devices 12A, 12B as described above, the paper size It is decided according to.

  The screw holes of the female screw member 60 fixed to the main body 40a of the paper receiving base 40 of the left and right lateral needle devices 12A and 12B in the vicinity of the cam shaft 36 are parallel to the cam shaft 36 and the stay 37 and are on one side. The threaded portions of the screw shaft 61 whose both ends are pivotally supported are respectively screwed into the machine base frame 30 and a bearing at the end of a bearing plate (not shown) at the center of the stay 37 (see FIGS. 6 and 9). The female thread member 60 and the screw shaft 61 constitute the left lateral needle device moving mechanism and the right lateral needle device moving mechanism described above.

  Further, the bearing plate includes a left lateral needle device moving motor (left lateral needle device moving drive source) 130 and a right lateral needle device moving motor (right lateral needle device moving) as rotation driving means for each screw shaft 61. Drive source) 134 is fixed together with the left side needle device moving motor rotary encoder 132 and the right side needle device moving motor rotary encoder 136 connected to the motors 130, 134 (see FIG. 1B). ).

  Therefore, when the left lateral needle device moving motor 130 and the right lateral needle device moving motor 134 rotate, the screw shafts 61 rotate, and the left lateral needle device 12A is screwed by the screw shafts 61 and the female screw members 60. And the entire right lateral needle device 12B independently move on the stay 37 and are positioned at a predetermined position according to the paper size. The left and right lateral needle device moving mechanisms and the left and right lateral needle device moving drive sources have been briefly described above. The detailed description is substantially the same as that disclosed in Patent Document 2 by the present applicant. Therefore, the description thereof is omitted.

  In this embodiment, as shown in FIGS. 6 and 7, the support block 62, the L-shaped bracket 63, the support frame 64, and the mounting plate 65 are provided on the paper tray 40 of the left lateral needle device 12A. The first left end detector 125A and the second left end detector 125B are integrally attached. Of course, since the first right end detector 126A and the second right end detector 126B are similarly mounted on the paper tray 40 of the right side needle device 12B, the paper receiver of the left side needle device 12A is attached. The table 40 will be described in detail as an example.

  The support block 62 is coupled to the main body 40a of the paper tray 40 with bolts 66 through the upper plate 40b. A photoelectric sensor 68 is attached to the support block 62 via a bracket 67 for detecting the presence or absence of the paper W that abuts the side edge of the lateral pad 58. The L-shaped bracket 63 has a vertical plate portion coupled to the support block 62 by a bolt 69 and a base end portion of the support frame 64 coupled to the horizontal plate portion by a bolt 70. A mounting plate 65 is coupled to the front end surface of the support frame 64 with bolts 71. As shown in FIGS. 10A and 10B, the mounting plate 65 includes a board portion 65a and a bifurcated plate portion 65b. The left and right side surfaces of the bifurcated plate portion 65b have a first left end detector 125A and a second The left end detector 125B is coupled with a bolt 72, respectively.

  The detection signals of the first left end detector 125A and the second left end detector 125B are input to the control device 100 described later via the lead wire 73. Although the photoelectric end detector for detecting the corner breakage of the paper W has been briefly described, the detailed description is substantially the same as the detector disclosed in Patent Document 1 by the present applicant. The description is omitted.

In addition, the distance L _{1 in} the left-right direction between the first left end detector 125A and the second left end detector 125B is determined when the paper W is laterally regulated by the right lateral needle device 12B. the left side lay device 12A together with is set to a distance to escape from the left end of the paper W, lateral distance between the first right-hand end detector 126A and the second right edge detector 126B L ₂ Is set in advance to the distance by which the right lateral needle device 12B is allowed to escape from the right end of the paper W when the paper W is regulated to be laterally applied to the left lateral needle device 12A.

  In this embodiment, when the control device 100 described above selects the left lateral needle device 12A from the pair of lateral needle devices, the first left end supported by the left lateral needle device 12A. The corner W of the paper W is detected by signals from the second right end detector 126B supported by the head detector 125A and the right side needle device 12B, and the left side needle device moving motor 130 is driven and controlled. The left lateral needle device 12A is moved to a position corresponding to the paper size of the paper W, while the right lateral needle device moving motor 134 is driven to control the right lateral needle device 12B to the second right end detector 126B. When the right lateral needle device 12B is selected by moving the right end portion of the paper W to the position where it can be detected, the first right edge detector 126A supported by the right lateral needle device 12B and the left lateral Needle device 12A A corner break of the paper W is detected by the signal from the second left end detector 125B held, and the right horizontal needle device moving motor 134 is driven and controlled to control the right horizontal needle device 12B to the paper W. A position where the left lateral needle device 12A can be detected by the second left edge detector 125B and the left edge portion of the paper W can be detected by driving and controlling the left lateral needle device moving motor 130. It is supposed to be moved to.

Further, in the control device 100, when the left lateral needle device 12A is selected, the position of the right lateral needle device 12B is {(position of the right lateral needle device 12B according to the length in the left-right direction of the paper W) − (The distance L _{2 in} the left-right direction between the first right end detector 126A and the second right end detector 126B)}, and the left side needle when the right side needle device 12B is selected. The position of the device 12A is {(position of the left side needle device 12A according to the length of the paper W in the left-right direction) − (between the first left end detector 125A and the second left end detector 125B). The left lateral needle device moving motor 130 and the right lateral needle device moving motor 134 are also driven and controlled so that the distance is the distance L ₁ )} in the left-right direction.

  That is, as shown in FIGS. 1A and 1B, the control device 100 is configured by connecting the input / output devices 104 to 113 and the interface 114 with a BUS (bus) in addition to the CPU 101, the ROM 102, and the RAM 103.

  This BUS includes the selected horizontal needle device storage memory M100, the paper size storage memory M101, the printing speed storage memory M102, the paper size-left side needle device position conversion table storage memory M103, and the paper size. Left lateral needle device position storage memory M104, paper size-right lateral needle device position conversion table storage memory M105, right lateral needle device position storage memory M106 according to the paper size, escape the lateral needle device from the paper edge A distance storage memory M107, a target left lateral needle device position storage memory M108, and a target right lateral needle device position storage memory M109 are connected.

  Also, the BUS includes a count value storage memory M110 for the left lateral needle device position detection counter, a current left lateral needle device position storage memory M111, a count value storage memory M112 for the right lateral needle device position detection counter, A current right side needle device position storage memory M113, a printing machine rotational phase detection counter count storage memory M114, a current printing press rotational phase storage memory M115, and a corner break detection phase storage memory M116 are connected. ing.

  Further, the input / output device 104 includes a left side needle device selection switch 115, a right side needle device selection switch 116, a preset start switch 117, a print start switch 118, a print stop switch 119, an input device 120, a display 121, and An output device 122 such as a floppy (registered trademark) disk drive or printer is connected.

  A paper size setting unit 123 and a printing speed setting unit 124 are connected to the input / output device 105, and a first left end detector 125A and a second left end detector 125B are connected to the input / output device 106. The first right end detector 126A and the second right end detector 126B are connected.

  A left lateral needle device moving motor 130 is connected to the input / output device 107 via a left lateral needle device moving motor driver 129, and the left lateral needle device position detecting counter 131 is connected to the input / output device 108. The left side needle device moving motor rotary encoder 132 connected to the left side needle device moving motor 130 is connected via the.

  A right lateral needle device moving motor 134 is connected to the input / output device 109 via a right lateral needle device moving motor driver 133, and a right lateral needle device position detecting counter 135 is connected to the input / output device 110. The right side needle device moving motor rotary encoder 136 connected to the right side needle device moving motor 134 is connected via the.

  A right lateral needle device origin position detector 137 and a left lateral needle device origin position detector 138 are connected to the input / output device 111, and the right lateral needle device position detection counter 135 and the left lateral position are detected by respective detection signals. The needle device position detection counter 131 is reset.

  A driving motor 141 is connected to the input / output device 112 via a D / A converter 139 and a driving motor driver 140.

  The input / output device 113 is connected to a rotary encoder 143 for a driving motor that is connected to the driving motor 141 via a counter 142 for detecting the rotational phase of the printing press. The driving motor rotary encoder 143 is also connected to the driving motor driver 140. The printing press rotation phase detection counter 142 is reset by a detection signal from a printing press origin position detector 144 attached to the driving motor 141.

  The interface 114 is connected to the paper feeding device 10 and the printing device 14.

  Hereinafter, the first left end detector 125A, the second left end detector 125B, the first right end detector 126A, the second right end detector 126B, and the left lateral needle device movement described above are moved. The operation of the motor 130 and the right side needle device moving motor 134 will be described.

  The control device 100 operates according to the operation flow shown in FIGS. 2A to 2C and FIGS. 3A and 3B.

  That is, it is determined in step P1 whether or not the left lateral needle device selection switch 115 is ON. If yes, the lateral needle device storage memory M100 selected in step P2 is overwritten with 1 and the process proceeds to step P3. On the other hand, if no, the process immediately proceeds to step P3.

  Next, in step P3, it is determined whether or not the right lateral needle device selection switch 116 is ON. If yes, 2 is overwritten in the lateral needle device storage memory M100 selected in step P4, and the process proceeds to step P5. On the other hand, if the result is NO, the process immediately proceeds to Step P5.

  Next, in step P5, it is determined whether or not there is an input to the paper size setting unit 123. If yes, the value input to the paper size setting unit 123 is read in step P6 and the paper size storing memory M101 is read. Overwriting to step P7, and if not, it immediately proceeds to step P7.

Next, the determining whether the input is there on the printing speed setting unit 124 in step P 7, a memory for Loading print speed stores the value input to the printing speed setting unit 124 in step P8 If YES If M102 is overwritten and the process proceeds to Step P9, if not, the process immediately proceeds to Step P9.

  Next, in step P9, it is determined whether or not the preset start switch 117 is ON. If yes, in step P10, the paper size-left lateral needle device position conversion table and the paper size-left lateral needle device position conversion table are determined. While reading from the storage memory M103, if not, the process returns to Step P1.

  Next, after reading the paper size from the paper size storage memory M101 in step P11, in step P12, using the paper size-left lateral needle device position conversion table, the left side corresponding to the paper size is used instead of the paper size. The horizontal needle device position is calculated and stored in the left horizontal needle device position storage memory M104 according to the paper size.

  Next, in step P13, the paper size-right side needle device position conversion table is read from the paper size-right side needle device position conversion table storage memory M105, and in step P14, the paper size is stored in the paper size. Read from the memory M101.

  Next, in step P15, using the paper size-right lateral needle device position conversion table, the right lateral needle device position corresponding to the paper size is calculated from the paper size to store the right lateral needle device position corresponding to the paper size. After storing in the memory M106, the contents of the horizontal needle device storage memory M100 selected in step P16 are read.

  Next, it is determined whether or not the content of the memory for storing the horizontal needle device selected in step P17 = 1. If yes, the left horizontal needle device position corresponding to the paper size is determined in accordance with the paper size in step P18. After reading from the left lateral needle device position storage memory M104, the left lateral needle device position storage memory M108 corresponding to the paper size is overwritten in the target left lateral needle device position storage memory M108 in step P19.

  Next, after reading the distance for releasing the horizontal needle device from the paper edge in Step P20 from the distance storage memory M107 for releasing the horizontal needle device from the paper edge, the right horizontal needle device position corresponding to the paper size is read in Step P21. The right side needle device position storage memory M106 corresponding to the paper size is read.

  Next, in step P22, the distance to release the horizontal needle device from the paper edge is subtracted from the right horizontal needle device position according to the paper size, and the target right horizontal needle device position is calculated by calculating the target right horizontal needle device position. After overwriting the storage memory M109, a reverse rotation command is output to the left lateral needle device moving motor driver 129 in step P23.

  If NO in step P17, the distance at which the horizontal needle device is released from the paper edge in step P24 is read from the distance storage memory M107 that releases the horizontal needle device from the paper edge, and then the paper size is read at step P25. Is read from the left lateral needle device position storage memory M104 according to the paper size.

Next, in step P26, the distance for releasing the horizontal needle device from the paper edge is subtracted from the left horizontal needle device position according to the paper size, and the target left horizontal needle device position is calculated by calculating the target left horizontal needle device position. after overwriting the storage memory M 108, it reads the right side lay device position according to the sheet size in step P27, from the right side lay device location storing memory M106 in accordance with the sheet size.

  Next, after the right side needle device position corresponding to the paper size is overwritten in the target right side needle device position storage memory M109 in step P28, the process proceeds to step P23.

  Next, when the left lateral needle device origin position detector 138 is turned ON in step P29, the reverse rotation command output to the left lateral needle device moving motor driver 129 is stopped in step P30, and then the right lateral needle is detected in step P31. A reverse rotation command is output to the device moving motor driver 133.

  Next, when the right lateral needle device origin position detector 137 is turned ON in step P32, the reverse rotation command output to the right lateral needle device moving motor driver 133 is stopped in step P33.

  Next, after outputting a normal rotation command to the left horizontal needle device moving motor driver 129 at step P34, the count value is read from the left horizontal needle device position detecting counter 131 at step P35 to detect the left horizontal needle device position. Is stored in the count value storage memory M110 of the counter.

  Next, in step P36, the current left lateral needle device position is calculated from the count value of the left lateral needle device position detection counter 131 and stored in the current left lateral needle device position storage memory M111, and then in step P37. The target left lateral needle device position is read from the target left lateral needle device position storage memory M108.

  Next, in step P38, it is determined whether or not the current left lateral needle device position = target left lateral needle device position. If yes, forward rotation to the left lateral needle device moving motor driver 129 is determined in step P39. While the command output is stopped, if NO, the process returns to Step P35.

  Next, after outputting a normal rotation command to the right horizontal needle device moving motor driver 133 in step P40, the count value is read from the right horizontal needle device position detecting counter 135 in step P41 to detect the right horizontal needle device position. Is stored in the count value storage memory M112 of the counter.

  Next, in step P42, the current right lateral needle device position is calculated from the count value of the right lateral needle device position detection counter 135 and stored in the current right lateral needle device position storage memory M113, and then in step P43. The target right lateral needle device position is read from the target right lateral needle device position storage memory M109.

  Next, in step P44, it is determined whether or not the current right lateral needle device position = target right lateral needle device position. If yes, forward rotation to the right lateral needle device moving motor driver 133 is determined in step P45. While the command output is stopped, if NO, the process returns to Step P41.

  When the left lateral needle device 12A is selected by the above operation flow, the left lateral needle device moving motor 130 is driven and controlled to move the left lateral needle device 12A to a position corresponding to the paper size of the paper W. On the other hand, the right lateral needle device moving motor 134 is driven and controlled so that the right lateral needle device 12B is moved to a position where the right end portion of the paper W can be detected by the second right end portion detector 126B. When the device 12B is selected, the right side needle device moving motor 134 is driven and controlled to move the right side needle device 12B to a position corresponding to the paper size of the paper W, while the left side needle device moving motor is moved. 130 is driven to move the left lateral needle device 12A to a position where the second left end detector 125B can detect the left end of the paper W.

That is, as shown in FIG. 5, when the left lateral needle device 12A is selected, when the left lateral needle device 12A is positioned at a position corresponding to the paper size of the paper W, the first left edge detector 125A performs paper feeding. The left end of W can be detected, and the right side needle device 12B can detect the distance L in the left-right direction between the first right end detector 126A and the second right end detector 126B from the position corresponding to the paper size of the paper W. _When the right edge portion of the paper W can be detected by the second right edge detector 126B when the right edge device 12B is selected, the second right edge device 12B is selected. Is positioned at a position corresponding to the paper size of the paper W, the right end portion of the paper W can be detected by the first right end detector 126A, and the left side needle device 12A can be detected from the position corresponding to the paper size of the paper W. the first left end detector 125A and the second left-side end portion detector It can detect the left edge of the paper W at the second left-side end detector 125B when positioned on the left side near the lateral direction of the distance L ₁ by the origin position between 25B. In this embodiment, the distance L ₁ = the distance L ₂ , and the value is set as a distance for letting the horizontal needle device escape from the paper edge.

  Next, when the print start switch 118 is turned on in step P46, the print speed is read from the print speed storage memory M102 in step P47.

  Next, in step P48, the printing speed is output to the driving motor driver 140 via the D / A converter 139. Then, in step P49, a paper feed start command is transmitted to the paper feeder 10, and in step P50. A print start command is transmitted to the printing apparatus 14.

  Next, in step P51, the count value is read from the printing press rotation phase detection counter 142 and stored in the count value storage memory M114 of the printing press rotation phase detection counter, and then the printing press rotation phase detection counter 142 in step P52. From the count value, the current rotation phase of the printing press is calculated and stored in the current printing press rotation phase storage memory M115.

  Next, after the corner break detection phase is read from the corner break detection phase storage memory M116 in step P53, it is determined in step P54 whether or not the current rotation phase of the printing press = corner break detection phase.

  Next, if yes in step P54, the contents of the horizontal needle device storage memory M100 selected in step P55 are read. If no, the process returns to step P51.

  Next, it is determined whether or not the content of the horizontal needle device storage memory selected in Step P56 = 1. If yes, the output of the first left end detector 125A is read in Step P57.

  Next, in step P58, it is determined whether or not the output of the first left end detector 125A is OFF. If yes, the process proceeds to step P66, which will be described later. If not, the second right edge is detected in step P59. Read the output of the end detector 126B.

  Next, in step P60, it is determined whether or not the output of the second right end detector 126B is OFF. If yes, the process proceeds to step P66 described later, and if no, the process proceeds to step P61.

  Next, if the answer is NO in Step P56, the output of the first right end detector 126A is read in Step P62.

  Next, in step P63, it is determined whether or not the output of the first right end detector 126A is OFF. If yes, the process proceeds to step P66 described later. If not, the second left side is detected in step P64. Read the output of the edge detector 125B.

  Next, in step P65, it is determined whether or not the output of the second left end detector 125B is OFF. If yes, the process proceeds to step P66 described later, whereas if no, the process proceeds to step P61.

  Next, in step P61, it is determined whether the print stop switch 119 is ON. If yes, a paper feed stop command is transmitted to the paper feeder 10 in step P66 described above. Return to.

  Next, after a print stop command is transmitted to the printing apparatus 14 in step P67, the stop command is output to the driving motor driver 140 in step P68.

  When the left side needle device 12A is selected by the above operation flow, the first left end detector 125A supported by the left side needle device 12A and the second side needle device 12B supported by the right side needle device 12B. When the corner break of the paper W is detected by a signal from the right edge detector 126B and the right lateral needle device 12B is selected, the first right edge detector supported by the right lateral needle device 12B. A corner break of the paper W is detected by a signal from the second left end detector 125B supported by 126A and the left side needle device 12A.

  Thus, according to the present embodiment, the pair of first and second left end detectors 125A and 125B and the first and second right end provided integrally with the left and right lateral needle devices 12A and 12B. The pair of first and second left end detectors 125A and 125B and the first and second detectors 126A and 126B are set in accordance with the setting of which one of the left and right lateral needle devices 12A and 12B is used. Since either the first or second left end detector 125A, 125B and right end detector 126A, 126B is used automatically among the right end detectors 126A, 126B, the operation is performed. It is possible to increase the rate and reduce the burden on the operator.

In the above embodiment, the left-right direction distance L ₁ between the first left end detector 125A and the second left end detector 125B, and the first right end detector 126A and the second right end. the lateral direction of the distance L ₂ between the parts detector 126B to the same value, and has been described as the distance to escape side lay device from the sheet edge, the distance L ₁ when the left side needle device 12A is positioned at the origin position The second left side edge detector 125B sets the distance at which the left edge of the paper W positioned by the right side needle device 12B can be detected, and the distance L2 is the _second when the right side needle device 12B is positioned at the origin position. If the distance can be detected on the right end portion of the sheet W, which is positioned on the left side lay device 12A in the right-side end detector 126B, as in the prior art, when the left side needle device 12A is selected, the left side lay The device 12A is positioned at a position corresponding to the paper size of the paper W. When attached, the first left edge detector 125A can detect the left edge of the paper W, and when the right lateral needle device 12B is retracted to the right origin position, the second right edge detector 126B detects the paper W. If the right side needle device 12B is selected, the right side needle device 12B is positioned at a position corresponding to the paper size of the paper W and the first right side edge detector 126A is used. The right end of the paper W can be detected, and when the left side needle device 12A is retracted to the left origin position, the second left end detector 125B can detect the left end of the paper W, as in the conventional case. When one of the horizontal needle devices is selected, both ends of the paper W can be detected even when the other horizontal needle device is in the retracted position.

  Further, the present invention is not limited to the above-described embodiments, and it is needless to say that various changes such as changes in the structure of the lateral needle device and the moving mechanism can be made without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 Paper feeder 11 Front contact 12A Left side needle device 12B Right side needle device 13 Swing 14 Printing device 15 Impression cylinder 16 Plate cylinder 17 Rubber cylinder 18 Intermediate cylinder 19 Transfer cylinder 20 Receiving cylinder 21 Conveyance chain 22 Paper discharge apparatus 30 Machine stand Frame 31 Bracket 32 Differential plate 33 Stay 34 Bracket 35 Plate spring 36 Cam shaft 37 Square stay 38A, 38B Paper guide 40 Paper receiving base 40a Main body 40b Upper plate 40c Bearing portion 41a, 41b Cam surface 42 Paper receiving roller 43 Cam follower 44 Spring hook 45 Tension spring 46 Roller arm 46a Long groove 46b General part 46c Shallow groove 47 Cam lever 48 Presser roller 49 Cam follower 50 Compression coil spring 51 Pin with knob 52 Bolt 53 Nut 54 Guide bolt 55 Nut 57 Holding plate 58 Side rest 59 Stop 60 female thread member 61 screw shaft 62 support block 63 L-shaped bracket 64 support frame 65 mounting plate 65a substrate portion 65b bifurcated plate portion 66 bolt 67 bracket 68 sensor 69 bolt 70 bolt 71 bolt 72 bolt 73 lead wire 100 control device 125A first Left end detector 125B Second left end detector 126A First right end detector 126B Second right end detector 130 Left lateral needle device moving motor 134 Right lateral needle device moving motor 141 Driving force Motor W Paper L ₁ Distance in the left-right direction between the first left end detector and the second left end detector L ₂ Left and right between the first right end detector and the second right end detector Directional distance

Claims (2)

A left side needle device that aligns the left end side position of each sheet-like material supplied to the printing unit from the sheet feeder of the sheet-fed printing press;
A right side needle device for aligning the right end side position of each sheet-like material supplied to the printing unit from the sheet feeder of the sheet-fed printing press;
Presence or absence of the sheet-like material at the left end and the right end of the front end portion of the sheet-like material provided at the downstream side in the conveying direction of the sheet-like material from the horizontal needle device and aligned by the one horizontal needle device. A detector to detect;
In a sheet-fed printing press equipped with
As the detector,
A first left end detector supported by the left side needle device;
A second left end detector supported by the left lateral needle device and provided at a position away from the first left end detector toward the center in the left-right direction;
A first right end detector supported by the right lateral needle device;
A second right end detector supported by the right side needle device and provided at a position away from the first right end detector toward the center in the left-right direction;
And providing
When the left lateral needle device is selected from the pair of lateral needle devices, a first left end detector supported by the left lateral needle device and a first lateral end device supported by the right lateral needle device. Only the right end detector of 2 detects the presence or absence of the sheet at the left end and the right end of the front end of the sheet,
When the right side lay device is selected by only the first right-hand end detector and a second left end detector that is supported by the left side lay device which is supported on the right side lay device Detecting the presence or absence of the sheet-like material at the right end and the left end of the front end of the sheet-like material,
A method of detecting sheet-like object corner breakage in a sheet-fed printing press. A left side needle device that aligns the left end side position of each sheet-like material supplied to the printing unit from the sheet feeder of the sheet-fed printing press;
A right side needle device for aligning the right end side position of each sheet-like material supplied to the printing unit from the sheet feeder of the sheet-fed printing press;
Presence or absence of the sheet-like material at the left end and the right end of the front end portion of the sheet-like material provided at the downstream side in the conveying direction of the sheet-like material from the horizontal needle device and aligned by the one horizontal needle device. A detector to detect;
In a sheet-fed printing press equipped with
As the detector,
A first left end detector supported by the left side needle device;
A second left end detector supported by the left lateral needle device and provided at a position away from the first left end detector toward the center in the left-right direction;
A first right end detector supported by the right lateral needle device;
A second right end detector supported by the right side needle device and provided at a position away from the first right end detector toward the center in the left-right direction;
And providing
When the left lateral needle device is selected from the pair of lateral needle devices, a first left end detector supported by the left lateral needle device and a first lateral end device supported by the right lateral needle device. The presence or absence of the sheet at the left end and the right end of the front end of the sheet is detected only by the signal from the right end detector of 2;
When the right lateral needle device is selected, from the first right end detector supported by the right lateral needle device and the second left end detector supported by the left lateral needle device . A sheet-like corner breakage detecting device for a sheet-fed printing machine, comprising a control device that detects the presence or absence of a sheet-like matter at the front end and the left end of the sheet-like object only by a signal .

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