JP2634875B2 - Automatic plate feeder for sheet-fed printing press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for cutting a piece of paper already cut into a predetermined size.
A support plate (hereinafter simply referred to as a "plate") that supports printed paper during the sheet removal operation of a sheet-fed printing press that discharges printed paper onto a pile and stacks them one by one. The present invention relates to an automatic plate support supply device for automatically supplying a plate support on a plate.

[Conventional technology]

Generally, in the discharge section of a sheet-fed printing press, FIGS.
As shown in the drawing, printed papers 3 are discharged one by one and stacked on a pallet 2 placed on a pile 1 that gradually descends. At this time, when a large number of papers 3 are stacked, the pressure between the papers is also increased by the weight, and the printing paper ink is pressed and transferred to the adjacent paper. Therefore, in order to prevent this transfer, when the stacking height of the printing paper 3 exceeds a predetermined value, the plate 5 is placed via the plate support 4 higher than the stacking height so that the printing paper 3 is not further stacked thereon. The printing paper 3 is stacked on the printing paper 5 in several stages such that the printing paper 3 is stacked from the beginning. Here, an angle material is usually used for the plate support 4, and as can be clearly understood from FIG. 9, two pieces are arranged on the front side and the rear side of the paper 3 accumulated on the pile 1. In this specification, “front side”
Indicates the downstream side (left side in FIG. 8) of the direction in which the printed paper is discharged, and "rear side" indicates the opposite side, that is, the printing press side.

In the above-described sheet discharge section of sheet-fed printing paper, a sheet removing operation of inserting the plate support 4 and the plate 5 at appropriate intervals is performed at the time of discharging the printing paper. This stripping operation is usually performed manually, and accordingly, the board support 4 is also manually placed on a predetermined position on the board 5 by the operator.

[Problems to be solved by the invention]

However, this work is heavy labor because the heavy board supports are handled by hand. In particular, the work to supply the board supports to the rear side of the accumulated paper 3 is a dangerous work due to the small work space due to the surrounding layout. there were. In addition, especially in recent printing presses, because of high-speed rotation, the interval between the board-cutting operations is short, so that the frequency of the board-cutting operation is increased, and the operator is busy with the board-cutting operation, and has extra time for other operations such as printed matter inspection. There was a problem that can not be done with.

Therefore, automation of this work is desired, and the present applicant has previously developed a device for supplying a plate support to a predetermined position on a plate and applied for a patent (see Japanese Patent Application No. 62-215223). . This device is provided at the positions indicated by two-dot chain lines 6 and 7 on the front side and the rear side of the pile 1 in FIG.
A telescopic arm that pivots from a vertical state to a horizontal state about a horizontal axis above it, and an electromagnet attached to the tip of the telescopic arm, extend the telescopic arm downward, and use the electromagnet at the tip to move the top of the top of the support table. Then, the telescopic arm is retracted by retracting the telescopic arm, and then the telescopic arm is turned upright by turning the telescopic arm horizontally, and then the telescopic arm is extended and the held telescopic post is placed on the pile. It can be supplied on a plate.

However, it has been found that the above-mentioned device for supplying the plate support has a new problem because it is provided in a considerable width area including the center of the pile on the front side and the rear side of the pile. In other words, a work space for the operator to check the quality of the printed matter is required at the front of the pile, but since the plate support supply device is provided at this position, there is no work space at the front of the pile, and the quality check work is performed. Becomes difficult. In addition, when the plate supports supplied on the support stand are exhausted, new plate supports need to be replenished. However, since the rear support stand is located at the back of the pile, paper is stacked on the pile. During operation, the pile and the paper piled on it make it difficult to replenish the plate struts.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an automatic plate support supply device capable of easily replenishing plate supports without significantly impairing the work space on the front side of the pile. I do.

[Means for solving the problem]

In order to achieve the above object, a first invention of the present application is a plate column automatic supply device for supplying a plate column on a support plate supporting a printing paper, which is provided in a discharge section of a sheet-fed printing press. A plate support stock means disposed at the front side or the rear side of the paper discharge section and on the side of the paper discharge section for holding a plurality of plate supports in an upright state; Plate holding means for holding the plate support, expansion and contraction means for holding the plate support so as to reciprocate horizontally, turning means for turning the expansion and contraction means in a horizontal plane, A gist of the present invention is an automatic plate support supply device for a sheet-fed printing press, which has a slide means for sliding the turning means horizontally in a direction intersecting with the center line of the printing press.

Further, a second invention of the present application is a plate support automatic feeder provided in a discharge section of a sheet-fed printing press for supplying a plate support between support plates for supporting printing paper. A plate support stock means disposed at the rear side and on the side of the paper discharge section for holding a plurality of plate supports in an upright state, and reciprocating the plate support stock means horizontally in a direction intersecting with the center line of the printing press; Moving means, a plate support holding means for holding the plate support, which is disposed closer to the center of the printing press than the plate support stock means, an arm for holding the plate support, and an arm in a horizontal plane. SUMMARY OF THE INVENTION A gist of the present invention is an automatic plate support supply device for a sheet-fed printing press, which has a turning means for turning the turning means and a sliding means for horizontally sliding the turning means in a direction substantially parallel to the center line of the printing press.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view schematically showing a sheet-feeding machine discharge section provided with an automatic plate support apparatus according to an embodiment of the present invention, FIG. 2 is a side view thereof, 1 is a pile, and 2 is a pallet. , 3 is accumulated paper, 4
Is a plate support, 5 is a plate, line XX is a center line of the printing press and the pile 1, and line X ₁ -X ₁ is a line parallel to the center line XX and passing through a plate support set position on the plate 5. is there. On both sides above the pile 1, plate insertion guides 8 which are parallel to each other and are movable in the left-right direction are provided. The board insertion guide 8 is for inserting a new board 5A, and a limit switch 9 for detecting a state in which the tip of the board 5A is set to the board insertion guide 8 is attached to a front end. In front of pile 1,
Two sets of automatic plate support devices 10 according to the first embodiment of the present invention are arranged, and two sets of automatic plate support devices 30 according to the second embodiment of the present invention are arranged at the rear side. Each of these is provided so as to be slightly lower than the boarding guide 8.

FIG. 3 and FIG. 4 are a front view and a plan view showing the plate support automatic supply device 10 in an enlarged manner. In the figure, reference numeral 11 denotes plate support stock means for holding a plurality of plate supports 4 in an upright state, and is arranged so as to be located on the front side and side of the sheet discharge section. The plate support stock means includes a pair of side plates 11A extending at right angles to the printing machine center line XX, and a plate support plate 11B attached between the side plates 11A. It is arranged so as to be overlapped and held in a direction perpendicular to the printing machine center line XX. Plate support plate 11
The mounting height of B is adjustable so that the upper surface of the plate support can be set at a predetermined height position even when the height of the plate support 4 changes.

Reference numeral 12 denotes an air cylinder which constitutes a telescopic means provided horizontally on the printing press center line side with respect to the plate support stock means 11, and the plate support means is attached to the tip of the piston rod 12a. The plate support means comprises a support plate 13 mounted on the piston rod 12a, a vacuum suction pad mounting plate 15 holding a vacuum suction pad 14, and the like.
The vacuum suction pad mounting plate 15 is provided so as to be pivotable in the direction of arrow A so that the vacuum suction pad 14 can sufficiently adhere even if the plate support 4 formed of an iron angle material is slightly deformed. (In the direction opposite to arrow A) by a spring (not shown). 16 is an air cylinder
This is an air-actuated actuator that constitutes a turning means for holding the air cylinder 12 through a member 17 and for turning the air cylinder 12 in a horizontal plane. The actuator 16 rotates the air cylinder 12 90 degrees in a direction substantially perpendicular to the printing machine center line XX (see FIG. 7B) and in a direction parallel to the printing machine center line XX (see FIG. 7C). Is what you can do.

The actuator 16 is mounted on a slide table 19 via an L-shaped member 18.
Reference numeral 19 is mounted on a slide shaft 20 via a bearing so that the slide can be performed smoothly. The slide table 19 includes a member 21 for fixing a slide shaft 20.
In addition, it is attached to a slide portion 24 of an air-operated rodless cylinder 23 attached via a member 22, and can be moved forward and backward by air pressure. Also, member 21
Is fastened to a gantry 26 fixed to the floor surface 25. The slide shaft 20 and the rodless cylinder 23
It is arranged at right angles to X. The slide table 19, the slide shaft 20, the rodless cylinder 23 and the like constitute a slide means for horizontally sliding the actuator 16 in a direction intersecting the printing machine center line (in this embodiment, at right angles). I do. The gantry 26 is arranged on the front side of the pile 1 and outside the line X ₁ -X ₁ .
The moving stroke of the slide table 19 is determined by moving the actuator 16 from the position where the plate support held by the plate support stock 11 can be sucked to the vacuum suction pad 14 by a line X ₁ −
It is selected so as to be able to move on the X _1.
By adopting such an arrangement of the gantry 26, a large work space can be secured in the front of the center of the pile, and at this position, an operator can easily perform operations such as taking out printed matter and performing quality inspection.

FIGS. 5 and 6 are an enlarged front view and a plan view, respectively, showing the automatic plate support device 30. In the drawing, reference numeral 31 denotes a plate support stock means for holding a plurality of plate supports 4 in an upright state, and is arranged on the side behind and behind the pile 1 of the paper discharge section. The plate support stock means 31 has a pair of side plates 31A extending at right angles to the printing machine center line XX and a plate support plate 31B mounted between the side plates 31A. Are arranged so as to be overlapped and held in a direction perpendicular to the printing machine center line XX.
The mounting height of the plate support plate 31B can be adjusted so that the upper surface of the plate support can be at a predetermined height position even when the height of the plate support 4 changes. Plate support stock means 31
Is connected to a slide table 50, and the slide table 50 is mounted on a slide shaft 51 via a bearing so that the slide table 50 can slide smoothly.
The slide table 50 is connected to a slide portion 55 of an air-operated rodless cylinder 54 which is attached via a member 532 to a member 52 fixing the slide shaft 51, and is capable of moving forward and backward by air pressure. It is. Also, the members
52 is fastened to a gantry 56 fixed to the floor 25. The gantry 56 is arranged so that the slide shaft 51 is perpendicular to the line X ₁ -X ₁ . The slide table 50, the slide shaft 51, the rodless cylinder 54, and the like constitute slide means for horizontally reciprocating the plate support stock means 31 in a direction intersecting with the center line of the printing press (in this embodiment, at right angles). I do. Here, the movement stroke of the slide table 50 is
The plate support stock means 31 is connected to the pile 1 as shown in FIG.
A position where the plate support 4 can be easily set thereon and a position where the plate support 4 held by the plate support stock means can be adsorbed to the vacuum suction pad 34 described later. Has been selected to be moved.

Reference numeral 32 denotes an arm disposed closer to the center of the printing press than the plate support stock means 31, and a plate support holding means for holding the plate support is attached to the tip of the arm. The plate support means has a support plate 32 attached to the tip of the arm 32, a vacuum suction pad mounting plate 35 holding a vacuum suction pad 34, and the like. The vacuum suction pad mounting plate 35 is also provided so as to be pivotable in the direction of arrow A so that the vacuum suction pad 34 can sufficiently adhere even if the plate column 4 is slightly deformed. In the direction). Reference numeral 37 denotes an air-actuated actuator which constitutes a turning means for holding the arm 32 and turning the arm 32 in a horizontal plane. This actuator 37 is attached to the arm 32
In a direction perpendicular to the printing press center line XX (see FIG. 7A) and a direction parallel to the printing machine center line XX (see FIG. 7C).
It can be turned by degrees.

The actuator 37 is a slide table via a member 38
Installed on 39. The slide table 39 is mounted on a slide shaft 40 via a bearing so that it can slide smoothly. The slide table 39 includes a member 41 to which the slide shaft 40 is fixed, and a member 42.
Air-operated rodless cylinder mounted via
Attached to the slide part 43 of 43, it can move forward and backward by air pressure. The member 41 is fastened to a gantry 46 fixed to the floor 25. The gantry 46 is arranged so that the slide shaft 40 is parallel to the line X ₁ -X ₁ and the actuator 37 is on the line X ₁ -X ₁ .
The slide tail 39, the slide shaft 40, the rodless cylinder 43, and the like constitute a slide means for sliding the actuator 37 horizontally in a direction parallel to the center line of the printing press. Here, the stroke of the slide table 39 changes the size of the paper 3 accumulated on the pile 1, so that even if the rear end position of the paper 3 on the pile 1 changes, the arm
It is specified that the plate support held at the leading end of 32 can be pressed against the rear end of the paper.

Next, the operation of the plate column automatic supply devices 10 and 30 having the above configuration will be described.

In FIG. 2, papers 3 printed by a sheet-fed printing press are discharged one by one at a discharge unit of the printing press and stacked on a plate 5 on a pile 1. At this time, the pile 1 is gradually lowered as the paper 3 is stacked, and the top surface of the stacked paper 3 is always kept at a constant height. When the stacking height of the paper 3 on the uppermost plate 5 exceeds a predetermined value, a plate removing operation is performed. That is, the tip of a new board 5A is inserted into the boarding guide 8, and at this time, the limit switch 9 provided on the boarding guide 8 is operated, and the pile 1 is lowered by a predetermined amount. Thereafter, the plate 5 is pushed in, and the paper to be discharged thereafter is accumulated thereon.

At this time, in the front plate support automatic supply device 10, the air cylinder 12 is contracted to the shortest length and is turned sideways by the actuator 16, and the slide table 19 is located at a position where it can pass from the printing machine center line XX. FIG. 7 (a)
As shown in (1), the vacuum suction pad 14 is in close contact with the top of the plate support 4 set on the plate support plate 11B. Also, in the rear plate column automatic supply device 30, the slide table 39 is in the retracted position, the arm 32 is turned sideways by the actuator 37, and the plate column plate 31B is moved to the position moved toward the center of the printing press. Yes, Fig. 7 (a)
As shown in FIG. 7, the vacuum suction pad 34 at the tip of the arm 32 is in close contact with the top of the plate support 4 set on the plate support plate 31B.

Then, the signal from the limit switch 9 is input, and the front plate column automatic supply device 10 applies a vacuum to the vacuum suction pad 14 to suck the plate column 4. Thereafter, the slide table is held with the vacuum suction pad 14 holding the plate support 4.
19 moves toward the center line XX, and the actuator 16 held thereon moves the line X ₁ -X as shown in FIG. 7 (b).
Move to the on X _1.

Next, the actuator 16 rotates the air cylinder 12 so as to be positioned on the line X ₁ -X ₁ as shown in FIG. 7 (c), and directs the plate support 4 held on the vacuum suction pad 14 toward the paper 3. . Next, the air cylinder 12 operates to push the plate support 4 onto the plate 5 and press it against the paper 3 on the plate 5, as shown in FIG. 7 (d). Thereafter, when the vacuum of the vacuum suction pad 14 is turned off and the vacuum suction is released, the plate support 4 is set at a predetermined position on the plate 5.

After this, the air cylinder 12 contracts and the actuator 16
Operates to return the air cylinder 12 to the position shown in FIG. 7 (e). Next, the slide table 19 slides outward from the center of the printing press, returns to the position shown in FIG. 7 (a), and waits for the next plate removing operation.

On the other hand, in the rear plate column automatic supply device 30, a signal from the limit switch 9 is input to apply a vacuum to the vacuum suction pad 34 to suck the plate column 4. Thereafter, the plate 31B of the plate support is moved to the center line X of the printing press as shown in FIG. 7 (b).
-Move outward from -X and retreat to a position where the rotation of the arm 32 is not hindered. When the supporting plate 31B of the plate support retracts to the stroke limit, the actuator 37 operates and the seventh position is set.
As shown in FIG. 3C, the arm 32 is positioned on the line X ₁ -X ₁ , and the plate support 4 held on the vacuum suction pad 14 is directed to the paper 3. Next, the slide table 39 slides, and the plate support 4 is pushed out onto the plate 5 and pressed against the paper 3 on the plate 5 as shown in FIG. Thereafter, when the vacuum suction pad 34 is turned off and the vacuum suction is released, the plate support 4 is set at a predetermined position on the plate 5.

After this, the slide table 39 moves back to the original position,
The actuator 32 returns the arm 32 to the position shown in FIG. 7 (e). Next, the plate 31B of the plate support slides toward the center of the printing press, returns to the position shown in FIG. 7 (a), and waits for the next plate removing operation.

After the front and rear plate supports 4, 4 are left on the plate 5 and on the front and rear sides of the paper 3 as described above, the pile 1 is raised and held by the plate insertion guide 8. Board support on board 5
The upper ends of the plates 4 and 4 are brought into contact with each other, and then the plate insertion guide 8 is opened to put the plate 5 on the plate columns 4 and 4. After that, the pile 1 is lowered to the home position. Thus, the sheet removing operation is completed, and new sheets are discharged onto the sheet 5 again one by one and stacked. When the stacking height of the paper 3 exceeds the predetermined value again,
Again, the above-mentioned stripping work is performed. By such a board removing operation, it is possible to effectively prevent the printing paper surface ink of the printing paper from being pressed and transferred to the adjacent paper surface.
In addition, by disposing the plate supports 4, 4 along the printing paper 3, it is possible to prevent the alignment of the printing paper from being disturbed by the vibration during the lifting and lowering of the pile 1 or the conveyance of the printing paper 3.

For the plate support 4 on the plate support plates 11B and 31B, the operator periodically replenishes the plate support work for about 40 times of the plate removing work. At this time, since the supporting plates 11B and 31B of the plate support are both located outside the pile 1, they can be easily refilled.

In the automatic plate support supply device 10 of the above embodiment, the plate support stock means 11 connects the plate support 4 to the printing machine center line X.
The slide table 19 is arranged so as to be held so as to be overlapped in a direction perpendicular to −X, and the slide table 19 is configured to reciprocate in a direction perpendicular to the center line XX of the printing press. The direction of movement of the slide table and the direction of movement of the slide table are not necessarily limited to this direction.
Any direction may be used as long as it intersects −X. Also in the automatic plate support supply device 30, the direction in which the plate supports of the plate support stock means 31 overlap and the direction in which the plate support stock means 31 moves are not limited to the direction perpendicular to the printing machine center line XX. The direction may intersect.

Further, in the above embodiment, the telescopic means, the turning means,
Although an air operated type is used as the sliding means, a hydraulically operated type may be used instead, or a motor may be used instead of the cylinder mechanism. The motor may be electric or hydraulic. Further, the expanding / contracting means and the turning means are not the same, and different ones of the above means may be combined. Further, in the above-described embodiment, vacuum suction is used as the plate column holding means, but a holding means such as an electromagnet may be used instead.

Further, in the drawings, the plate support automatic supply device 10 according to the first invention of the present application is disposed only in front of the paper discharge unit, but the plate support automatic supply device 10 is disposed behind the paper discharge unit, It can be used in place of the column automatic supply device 30. However, when the plate support automatic feeding device 10 is used behind the pile, the rear end position of the paper 3 changes with the change of the paper size, so that the stroke of the air cylinder 12 needs to be increased to cope with the change. There is. However, if the stroke of the air cylinder 12 is too large, a space for turning the air cylinder 12 by the actuator 16 may not be secured. Therefore, the automatic plate supporting device 10 is effective when the paper size change is not so large. On the other hand, the plate column automatic feeding device 30 has a configuration in which the pivoting portion is simply the arm 32 and the actuator 37 holding the arm 32 is moved toward the rear end of the paper 3 by the slide table 39. A large stroke can be taken on the table 39, and it is possible to cope with a large paper size change.

〔The invention's effect〕

As described above, according to the plate column automatic supply device of the first invention of the present application, when a large number of plate columns are stored in advance in the plate column stock means, the plate column at the tip is held by the expansion / contraction means. The holding means is held by the support means, the expansion means is moved toward the center of the printing press by the slide means, and then the expansion means is turned by the turning means so that the held plate support is opposed to the paper accumulated in the paper discharge section. After that, by moving the plate support forward by the expansion and contraction means, the plate support can be automatically supplied to a predetermined position on the plate stacked on the paper, and the plate support supply operation conventionally performed manually by an operator. Can be automated. In addition, since the plate support automatic feeder can be arranged in front of the sheet-fed printing press discharge section so as to leave a work space in the center, the work such as quality check of printed matter accumulated in the discharge section can be performed. Does not cause any trouble.

According to the plate column automatic supply device of the second invention of the present application, when a large number of plate columns are stored in advance in the plate column stock means, the plate column stock means is moved toward the center of the printing press by the slide means. The plate strut at the tip is held by the plate strut holding means in front of it, the plate strut stock means is retracted, and then the arm holding the plate strut holding means is turned by the turning means, and the held plate strut is released. By moving the turning means toward the paper with the sliding means, the holding plate support is automatically moved to a predetermined position on the paper collecting sheet by moving the turning means toward the paper. This makes it possible to automate the work of supplying the plate support, which has conventionally been performed manually by an operator. In addition, since the plate support stock means is located outside the paper discharge section, a new plate support can be easily replenished to the plate support stock means even during paper discharge. Further, since the plate support is supplied onto the plate by a slide means which reciprocates in parallel to the center line of the printing press, it is possible to cope with all paper sizes by increasing the stroke of the slide means.

As described above, the plate support automatic feeder according to the first and second aspects of the present invention is disposed at the front side and the rear side of the paper discharge unit of the printing press, respectively. The four plate supports can be automatically supplied on the upper side, and the operator does not need to perform any troublesome and dangerous manual work as in the related art. For this reason, even if the frequency of the board removing operation is increased due to the speeding up of the printing press, the operator can perform other operations such as the inspection of the printed material with a sufficient time.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing a paper ejection unit provided with an automatic plate support apparatus according to an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a plate support of FIG. FIG. 4 is an enlarged front view of the automatic supply device 10, FIG. 4 is a plan view thereof, FIG. 5 is an enlarged front view of the plate support automatic supply device 30 of FIG. 1, and FIG. FIG. 7 is a schematic plan view for explaining the operation of the above embodiment, FIG.
FIG. 9 is a view on arrow IX-IX of FIG. 1… Pile, 2… Pallet, 3… Paper, 4… Plate support, 5,5
A …… plate, 8 …… board insertion guide, 9 …… limit switch, 10
…… plate post automatic feeder, 11 …… plate post stock means, 11
A… side plate, 11B… plate support plate, 12… air cylinder, 1
3 ... Support plate, 14 ... Vacuum suction pad, 15 ... Vacuum suction pad mounting plate, 16 ... Actuator, 19 ... Slide table, 20 ... Slide shaft, 23 ... Rodless cylinder, 25
…… Floor surface, 26 …… Stand, 30 …… Automatic plate support feeder, 31…
... plate support stock means, 31A ... side plate, 31B ... plate support plate, 32 ... arm, 33 ... mounting plate, 34 ... vacuum suction pad,
35 …… Vacuum suction pad mounting plate, 37 …… Actuator, 39
… Slide table, 40… Slide shaft, 43… Rodless cylinder.

Claims (2)

(57) [Claims] 1. A plate support automatic feeder provided in a discharge section of a sheet-fed printing press for supplying a plate support on a support plate for supporting printing paper, the front or rear side of the discharge section. And a plate support stock means which is arranged on the side of the paper discharge section and holds a plurality of plate supports in an upright state, and which is arranged closer to the center of the printing press than the plate support stock means and holds the plate support. For supporting the column support, expansion and contraction means for holding the plate support horizontally so as to reciprocate horizontally, turning means for rotating the expansion and contraction means in a horizontal plane, and rotating the rotation means with respect to the center line of the printing press. And a slide means for sliding horizontally in a direction intersecting with the plate support of the sheet-fed printing press. 2. A plate support automatic supply device provided in a discharge section of a sheet-fed printing press for supplying a plate support between support plates for supporting printing paper, the apparatus being provided at a rear side of the discharge section and Plate support stock means arranged on the side of the paper discharge section for holding a plurality of plate supports in a stacked state, and slide means for horizontally reciprocating the plate support stock in a direction intersecting with the center line of the printing press. Plate holding means for holding the plate support, which is disposed closer to the center of the printing press than the plate support stock means, an arm for holding the plate support, and a swivel for rotating the arm in a horizontal plane. And a slide means for horizontally sliding the turning means in a direction substantially parallel to the center line of the printing press.