JPH0328020Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention is a sheet-fed printing machine that regulates the paper stacking position by regulating and aligning the edges of the paper stacked on the paper stacking table in order to feed it to the printing section in the front, back, left, and right directions. It is related to the device.

[Prior art]

A sheet-fed printing press is equipped with a paper stacking device that stacks paper supplied to a printing section to a predetermined height. 1 to 3 are a side view, a plan view, and a perspective view of a conventional paper stacking device of this type, in which a paper stacking table 2 is provided between the left and right paper feed frames 1 so as to be able to move up and down. Paper 3 is stacked on this paper stacking stand 2 via a plate 4. Then, the paper 3 is sucked and conveyed by a suction device (not shown) provided above, and is sent between the upper and lower paper feed rollers 5, and after being pulled out by the rotation thereof, is transferred onto the interfering plate by the paper feed tape 6. The paper stacking table 2 is automatically raised as the paper feed progresses as the paper is fed and further supplied to the printing section by the swing device. Paper stacking on the paper stacking table 2 is first performed prior to the printing operation, and thereafter, while the paper stacking table 2 is rising, stacking is carried out on an empty paper stacking table prepared in advance below, or the machine It is stopped and another stack is fed.

Such a paper stacking device is provided with a front end for aligning the front edges of the papers 3 and a horizontal aligning device for aligning the left and right edges when stacking the sheets. That is, the ends of the left and right paper feed frames 1 on the printing section side are connected by two upper and lower corner stays 7 formed in the shape of a square rod, and each corner stay 7 has a U-shaped corner stay 7 formed in a U-shape. A pair of left and right holders 8 are slidably fitted. A pair of left and right side supports 9 made of L-shaped steel are vertically attached to the upper and lower holders 8, and a plurality of front supports 10 are installed on the rear surface of the corner stay 7 on the paper feed frame 1 side. It is supported and attached to and stands vertically.

When stacking the paper 3 on the paper stacking table 2, the paper 3 loaded on the paper stacking table 2 is transported by a transport vehicle such as a forklift via the plate 4, and is lowered onto the paper stacking table 2, with the front end of the paper 3 facing forward. After the holder 8 is brought into contact with the stop 10 to align the registration in the vertical direction, the holder 8 is moved while looking at the scale on the scale plate 11, positioned according to the dimensions of the paper 3, and the holder 8 is fixed with the fixed handle 12. In this case, the horizontal support 9 is used on either the L side or the R side depending on the standard of the paper 3. For example, when performing double-sided printing with a single-sided printing machine, if the L side is used for front printing, the R side is used for back printing.
Use the side.

In such a conventional paper stacking position regulating device, if the horizontal support 9 is moved when the size of the paper 3 is small, it will interfere with the outer front support 10.
In order to avoid this, it is necessary to remove the front stopper 10 at the end and move it past the horizontal stopper 9, and then reinstall the removed front stopper, which is troublesome and takes a long time to move by loosening the bolts. This has significantly reduced the operating rate of the machine, especially in small machines where printing rods are small and paper size changes frequently due to the diversification of printing. However, if the cross support 9 is set to match the minimum paper size, there is a drawback that in the case of large size paper, the overall width of the front support 10 becomes too narrow, reducing the paper alignment effect.

In addition, during normal paper stacking work, while the paper 3 being fed is being raised together with the plate 4 by the lifting device,
In many cases, the next paper is prepared by stacking it below the plate 4. In that case, if the next paper has the same size as the paper 3 currently being fed, the side edge of the next paper is However, if the dimensions are small, it cannot be done, and there is a problem that one has to wait until the paper 3 being fed runs out.

[Summary of the idea]

The present invention was developed in view of the above points, and is configured such that the outer front guard is connected to the horizontal guard by a connecting member, and the outer front guard is moved in conjunction with the movement of the horizontal guard. This improves operability and productivity and makes it possible to align sheets under favorable conditions.Also, by providing an auxiliary cross support adjacent to the lower half of the cross support, which can be moved and adjusted independently from the support cross support. To provide a paper stacking position regulating device for a sheet-fed printing press, which is capable of aligning the left and right edges of the next small-sized paper prepared below the paper being fed. Embodiments of the present invention will be described in detail below with reference to the drawings.

〔Example〕

4 and 5 show an embodiment of the paper stack position adjusting device according to the present invention, and FIG. 4 is a cross-sectional view thereof;
FIG. 5 is a sectional view along line AA in FIG. 4. In the figure, the left and right paper feed frames 21 are connected at two upper and lower locations by corner stays 22, and a round stay 23 is supported by the paper feed frame 21 and is mounted on an axis in the middle of the upper and lower corner stays 22. A pair of left and right horizontal support holders 24 are slidably fitted to the round stay 23, and after sliding, they can be fixed at any position using a fixed handle 25. Left and right horizontal support holder 2
A pair of upper and lower L-shaped holders 27 fixed to the printing unit side plane are fixed to each of the corner stays 2 in a vertical manner.
2, and guides the horizontal abutment 26 while restricting its movement in the front-rear direction. The left and right side supports 26 each have a pair of upper and lower front support arms 28 as connecting members formed in a flat plate shape.
is fixed close to the corner stay 22 with a bolt 29, and projects horizontally toward the inside of the horizontal support 26. What is indicated by the reference numeral 30 is four front supports formed in a flat plate shape and vertically arranged in parallel with each other, of which two in the center are attached to the paper feed frame 2.
The two outer ones are fixed to the front end of the front arm 28 with bolts 31 at two places, upper and lower, respectively. By moving the horizontal support holder 24, the horizontal support 26 and the front support 30 are moved together. 32
are stoppers that are screwed into the round stay 23 to restrict both ends of the movement of the horizontal support holder 24. Also, 33
is a scale plate that is interposed between the L-shaped holder 27 and the lower corner stay 22 and displays the amount of movement of the horizontal support holder 24.

At the lower part of the horizontal support 26, a block-shaped upper horizontal support arm 34 and an L-shaped lower horizontal arm 35 are vertically parallel and protrude rearward. Round bar-shaped holders 38, 3 equipped with rectangular support plates are inserted into the inserted insertion holes 36, 37.
9 is pivotally supported so as to be slidable in the same direction as the moving direction of the horizontal support 26. On the upper and lower holders 38 and 39, an auxiliary cross rest 40 formed in a flat plate shape shorter and smaller than half of the cross rest 26 is fixed adjacent to and parallel to the cross rest 26, and is fixed to the horizontal support arm 34. It is configured so that it can be slid by loosening the screwed fixed handle 41, and can be fixed at any sliding position by tightening it.

In addition, the plate 4 shown in the conventional example of FIGS. 1 to 3, the paper 3 loaded on it, and rollers 5, 6
Since it is the same as the conventional one, the explanation will be omitted, and the same figure will be used in conjunction with the explanation of the operation that follows. In FIG. 4, the solid line 3 indicates the maximum paper, and the chain line 3A indicates the minimum paper.

The operation of the paper stack position regulating device configured as described above will be explained. Prior to printing work, the paper 3 loaded on the transport vehicle via the plate 4 is transported and lowered together with the plate 4 onto the paper stacking table 2, and the front end of the paper 3 is brought into contact with the front plate 30 to align the vertical direction of the paper 3. After aligning, fix the handle 2
5 is loosened and the horizontal support holder 24 is slid on the round stay 23, the horizontal support 26 integrated with this moves and the paper 3 is moved.
The paper 3 is aligned in the left-right direction by coming into contact with the side edge of the paper 3.
In this case, the front arm 2 protruding from the side arm 26
8 has an outer front rest 30 integrally fixed thereto, and when the side rest 26 is moved, the outer front rest 30 also moves in conjunction with this movement, so that the dimensions of the paper 3 are as shown in Fig. 4. From the largest paper 3 to the smallest paper 3A, it will be attached at the same distance inward from the edge of the paper, and even in the case of the smallest paper 3A, the front stopper 30 in the center will be moved or replaced. There's no need.

Furthermore, in paper stacking work using a paper stacking device, while the paper 3 being fed is being raised together with the board 4 by the lifting device, the next paper 3 is often loaded and prepared below the board 4. However, in this case, if the size of the next paper 3 is smaller than the paper 3 being fed, it is not possible to align the side edges of the next paper 3 with only the cross support 26, so in this case, the fixed handle is used. By loosening the fixed handle 41, moving the auxiliary cross support 40 and bringing it into contact with the small-sized paper 3, and loosening the fixed handle 41, the sheets can be aligned.

Although this embodiment shows an example in which there are four front supports 30, the number may be any number as long as the outer front supports 30 are movable and the central front supports 30 are fixed.

[Effect of idea]

As is clear from the above explanation, according to the present invention, in the paper stacking position regulating device of a sheet-fed printing press, the outer front and side supports are connected by a connecting member, and the outer side is By configuring the front cover to move, even if the width of the stacked paper changes, the dimensions from the edge of the paper will always remain the same and the optimum location will be brought into contact with the front cover. It is possible to always maintain an excellent paper alignment effect, which improves paper alignment performance, and also prevents paper dimensions from changing by preventing the front paper from interfering with each other when the horizontal paper is set to the minimum paper position. There is no need to replace or move the front cover even if the front cover is moved, and the paper alignment effect can be ensured by just moving the front cover, improving operability and reducing operating time, thereby increasing productivity. In addition, this invention
Since it is equipped with an auxiliary cross support that is adjusted to move in the same direction as the horizontal support, which is separate from the horizontal support for regulating the paper stack position, the next paper to be prepared below the paper being fed is If the size of the paper is smaller than that of the paper being fed, its side edges can be aligned in advance by the auxiliary cross-piece during the loading operation, thus making it possible to further shorten the operating time.

[Brief explanation of drawings]

1 to 3 show a conventional paper stacking position regulating device, FIG. 1 is a side view of a paper stacking device implementing this device, FIG. 2 is a plan view, and FIG. 3 is a perspective view, and FIG. 4 and 5 show an embodiment of the paper stack position regulating device for a sheet-fed printing press according to the present invention, FIG. 4 is a cross-sectional view thereof, and FIG. 5 is a cross-sectional view along AA of FIG. 4. 3,3A... Paper, 26... Horizontal arm, 28... Front arm, 30... Front arm, 40... Auxiliary horizontal arm.

Claims (1)

[Scope of utility model registration request] A front stop on the outside of the plurality of front supports that controls the paper stacking position by bringing the front edge of the stacked paper into contact with the front end, and a side stop for regulating the paper stacking position that can be adjusted forward and backward in the direction toward and away from the side edge of the stacked paper. are integrally connected by a connecting member, and an auxiliary crosspiece that is moved and adjusted independently in the same direction as the moving direction of the paper stack position regulating crosspiece is attached to the lower half of the paper stack position regulating crosspiece. A paper stacking position regulating device for a sheet-fed printing press, characterized in that it is provided adjacent to a section.