JPH0810554Y2 - Zigzag folding paper press shaping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is directed to stacking sheets stacked in a predetermined number by a zigzag folded sheet stacking device or the like and arranged in a certain order by the stacking device or the like. The present invention also relates to a press shaping device that aligns and shapes into a state that is extremely close to a rectangular parallelepiped.

[Conventional technology]

Conventionally, this type of press shaping device has not been used,
The sheets stacked and accumulated in the accumulator were packed in boxes as they were.

In addition, the lifting table of the stacking device is equipped with a push-up bar for curl correction, and the folding edges on both sides of the stack of stacked sheets on the lifting table are pressed on both sides of the lifting space of the lifting table. Then, a curl straightening press device for straightening the curl of the accumulated paper on the lift table is also provided.

[Problems to be solved by the device]

In the above-mentioned zigzag folded sheet stacking device, curls curved in the vertical direction of the sheets stacked by zigzag folding cannot be completely removed, and it is necessary to manually shape the curled sheets before packing them in a box.

The present invention has been made in view of the above, and it is possible to further shape shaped stacking sheets that are stacked and stacked in a stacking device and are shaped to a certain degree so as to be in an extremely rectangular parallelepiped state, and to perform box packaging as it is. The present invention aims to provide a press shaping device.

[Means for solving the problem]

In order to achieve the above object, a zigzag folded sheet press shaping device according to the present invention press-forms a stack of sheets stacked in the stacking device 23 downstream of a stacking device 23 that stacks zigzag sheets in the transfer direction. The first and second press shaping devices A and B are sequentially arranged in the transfer direction, and the first shaping device A is
A push-up bar 6 that pushes up the central portion of the lower surface of the stacking sheet in the transfer direction, a pressing plate 11 connected to the vertical moving means so as to press the center of the upper surface of the stacking sheet, and the pressing plate 11 is rotated to both sides in the transfer direction. It is composed of straightening plates 12a and 12b which are movably connected to each other and are connected to a rotating means to press the upper surfaces on both sides in the sheet conveying direction by rotating, and a second press shaping device B. The main press is composed of a support plate 37 fixed to the lower end of the vertically moving means, and pressing plates 38a and 38b that are attached downward on both sides of the support plate 37 in the transfer direction and press the upper surfaces of both sides of the stack sheet in the transfer direction. 32 and this main press 32
Correction presses 33a provided on both sides in the transfer direction of the main press 32 so as to advance and retreat in opposite directions by the cylinder devices 39a and 39b below the main press 32 to press the upper parts on both sides in the transfer direction of the stack of sheets. , 33b and.

[Action]

The accumulated zigzag sheets transferred from the accumulating device 23 are pushed up by the push-up bar 6 of the first press shaping device A.
Push-up, downward movement of the pressing plate 11, and both correction plates 12a, 12b
The first press shaping is performed by the rotation of. Then, in the second press-shaping device B, by downward movement of the supporting plate 37, the pressing plates 38a and 38b attached to both sides of the supporting plate 37 in the conveying direction are arranged on both sides of the zigzag sheet in the conveying direction, that is, in the vertical direction. The upper portions on both sides in the vertical direction are pressed to press the bent portions on both sides in the vertical direction, and the correction press 33a,
At 33b, the both sides in the vertical direction are aligned.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

In the figure, A is a first press shaping device, and B is a second press shaping device, which are sequentially arranged on the downstream side in the transport direction of a stacking device 23 for stacking zigzag paper, which will be described later.

First, the configuration and operation of the first press shaping device A will be described.

In the figure, 1 is a table horizontally supported by a frame 2, and a plurality of belts 3a, 3b, 3 are provided on the upper surface of the table 1.
There is provided a transfer conveyor 3 in which c, ... Are arranged side by side. The curl straightening position C is located substantially in the middle of the table 1 in the transfer direction, and the paper width abutting plates 4a, 4b are provided on both sides of the curl straightening position C in the width direction (direction perpendicular to the transfer direction). It is connected to the cylinder devices 5a and 5b supported by and is movable forward and backward in the paper width direction. A push-up bar 6 directed in the paper width direction is provided below the curl correction position C so as to be able to push up the table 1 from above the table 1 to above the table 1. The push-up rod 6 is connected to a push-up drive device (not shown). Also this push-up rod 6
Is located below the belt of the transfer conveyor 3, and the push-up operation of the belt causes the push-up rod 6 to push up the belt.

A curl straightening device 7 is provided above the curl straightening position C so as to be supported by the frame 2.

The curl straightening device 7 is connected to a pressing cylinder device 8 and moves up and down, and a pressing frame 9 is located below the vertically moving frame 9 and is connected to the vertically moving frame 9 by a connecting member 10. A plate 11 and correction plates 12a, 12b connected to both sides of the pressing plate 11 in the transfer direction so as to be vertically rotatable.
And a straightening cylinder device 14 which is connected to the straightening plates 12a and 12b via links 13a and 13b and is supported by the vertical moving frame 9.

Two sets of the curl straightening device 7 are provided in the width direction of the paper so that the two stacking papers 15a and 15b can be straightened at the same time. 16a and 16b are vertical guide bars.

Downstream alignment plate 17 is provided downstream of the curl straightening position C in the transfer direction.
Is arranged toward the upstream side. This downstream side alignment plate 17
Is supported so as to be movable in the vertical direction and the upstream and downstream directions.

That is, the bracket 18 supporting the downstream side aligning plate 17 is connected to the tip of the vertical movement cylinder device 20 supported by the support base 19, and the support base 19 is slidable in the frame 2 in the upstream and downstream directions. The moving cylinder device 21 supported by the frame 2 is connected to the supporting table 19.

An upstream aligning plate is provided upstream of the curl straightening position C in the transfer direction.
22 is arranged toward the downstream side. This upstream side alignment plate
22 is movable in the vertical direction, and is an elevating table of the stacking device 23 located upstream of the transfer conveyor 3 in the transfer direction.
It is movably supported from the upstream side of 24 to the upstream side of the curl straightening position C in the transfer direction.

That is, the bracket 22a that supports the upstream aligning plate 22
Is connected to the tip of a vertical movement cylinder device 26 supported by a support base 25, and the support base 25 is supported by the frame 2 slidably in the upstream and downstream directions. The support base 25 is connected to a chain 27a of a transfer device 27 extending in the upstream / downstream direction on the frame 2.

The stacking device 23 is zigzag-folded by a folding machine (not shown), and a predetermined number of sheets, for example, 2000 sheets are sent by a transfer conveyor 28 onto the lift table 24, and the lift table 24 is moved downward in conjunction with this. The stacking sheets 15a are stacked on top of each other, and when the feeding to the lift table 24 is completed and the lift table 24 is lifted again, the predetermined number of zigzag-folded accumulation sheets 15a,
15b is located on the same level as Table 2.

The upstream end 3e in the transfer direction of the transfer conveyor 3 provided on the table 2 has a knife edge shape.

The operation of the first press shaping device A having the above configuration will be described below.

Zigzag folding is performed by a folding machine (not shown), and a predetermined number of folding plates, for example, 2000 sheets are sent to the stacking device 23 by the transfer conveyor 28 and stacked there. At this time, the upstream aligning plate 22 is at the most upstream position in the transfer direction,
Moreover, the upper and lower cylinder devices 26 are moved upward so as not to interfere with the sheets fed to the stacking device 23.

Zigzag folded sheets are stacked as stacking sheets 15a and 15b on the lift table 24 of the stacking device 23, and the upstream aligning plate 22 is moved downward by the operation of the vertical movement cylinder 26 while the lift table 24 is raised, and then transferred. By operating the device 27, the accumulated sheets 15a and 15b on the elevating table 24 are moved to the downstream side and transferred to the curl correcting position C. At this time, the transfer conveyor 3 is also driven, and the accumulated sheets 15a and 15b are transferred from the elevating table 24 onto the transfer conveyor 3. At this time, since the upstream end 3e of the transfer conveyor 3 has a knife edge shape, abnormalities such as wrinkles and folds do not occur in the lowermost sheet when the sheet is moved from the elevator 24.

The stacking sheets 15a and 15b in a state of being stacked on the lift table 24 of the stacking device 23 become thicker than the central part due to insufficient bending pressure at both sides of the top and bottom. Therefore, as shown in FIG. It is curled so that both sides are higher.

When the stacking sheets 15a and 15b are transferred to the curl correcting position C, this is detected by a detector such as a photoelectric tube (not shown), and the transfer conveyor 3 stops.

Then, the push-up bar 6 rises to push up the center of the lower surface of the stacking sheets 15a and 15b, and reduce the amount of curl on the upper surface thereof.

Along with this, the upstream side aligning plate 22 that has transferred the stacking sheets 15a and 15b and the downstream side aligning plate 17 that has been waiting at the sheet stop position operate the transfer device 27 and the cylinder device 21 to stack the stacking sheets 15a, Hold both sides of 15b up and down in the vertical direction, aligning both sides of the vertical direction.

After that, the pressing cylinder device 8 is operated to move the curl straightening device 7 downward, and the pressing plate 11 of the curling straightening device 7 moves the accumulated paper 15a, 15b.
The central upper surface of the sheet is pressed, then the straightening cylinder 14 is operated to open the straightening plates 12a and 12b, and the upper and lower surfaces of the stacking sheets 15a and 15b are pressed to straighten the curl of this portion.

After that, the curl straightening device 7 is moved upward, and then the sheets 15a and 15b are rocked again by the both aligning plates 17 and 22 to be aligned.

The push-up bar 6 has been moved up to this point, but it descends after the second swing operation. Then, again, the curl straightening device 7 descends again and presses both sides of the top and bottom by the two straightening plates 12a and 12b.

After the straightening operation by the curl straightening device 7, the paper width abutting plates 4a and 4b are operated to align the width directions of the stack papers 15a and 15b.

When the above operation is completed, the transfer conveyor 3 is operated again, and the stacked sheets 15a and 15b that are pressed and aligned are transferred to the downstream side of the curl straightening device 7.

Next, the configuration and operation of the second press shaping device B arranged on the downstream side of the first press shaping device A in the transfer direction will be described.

In FIG. 1, reference numeral 30 indicates a second unit integrally provided on the downstream side of the transfer conveyor 3 of the first press shaping apparatus A.
Is a second transfer conveyor provided along the table 30a, and a substantially middle portion in the transfer direction of the transfer conveyor 30 is the second curl correcting position D. A second curl straightening device 31 is provided above the second curl straightening position D.

The second curl straightening device 31 includes a main press 32 and correction presses 33a and 33b provided on both sides of the main press 32 in the transfer direction so as to face each other.

The main press 32 includes a bracket 35 movably supported by the frame 34 in the transfer direction, and a support plate 37 fixed to the tip of a vertical movement cylinder device 36 supported by the bracket 35,
The support plate 37 is composed of pressing plates 38a, 38b mounted downward on both sides in the transfer direction.

The correction presses 33a and 33b are provided by cylinder devices 39a and 39b so as to be movable back and forth in opposite directions.

The bracket 35 of the main press 32 is connected to the frame 34 via a turnbuckle device 40. 40 is a support pillar.

The operation of the second press shaping device B having the above configuration will be described.

The accumulated sheets 15a and 15b that have been shaped to some extent by the first press shaping apparatus A and have been transported to the downstream side are transported by the second transport conveyor 30. When the accumulated sheets 15a, 15b reach the second curl correction position D, the transfer conveyor 30 is stopped by the detection means such as a photoelectric tube, and the accumulated sheets 15a, 15b are detected.
15b stops at the second curl straightening position D.

Then, the vertical movement cylinder device 36 operates and the press bar 37 starts moving downward. Then, just before the pressing plates 38a, 38b fixed to the press bar 37 contact the stacking sheets 15a, 15b, the downward movement is temporarily stopped. In this state, the correction press 33a, 33
b advances in the opposite direction and pushes both top and bottom surfaces of the stacking sheets 15a and 15b to align them. Then, in this state, the main press 31 descends again and the folded portions of the stacking sheets 15a and 15b are firmly pressed by the pressing plates 38a and 38b.

As a result, the curls on the upper portions of the stacking sheets 15a and 15b are completely corrected and shaped into an extremely rectangular parallelepiped shape.

A curl straightening device for the second curl straightening position D
The position of 31 is adjusted by the turnbuckle device 39.

In the above-described embodiment, the stacking sheets stacked by the stacking device 23
An example in which the curls 15a and 15b are straightened by the first press shaping device A at the first curl straightening position C and further curled by the second press shaping device B at the second curl straightening position D. However, the accumulation paper 15a, 15b,
When the curl is corrected by the stacking device 23 and aligned to some extent, the stacking sheets 15a and 15b are passed through the first press shaping device A and directly transferred to the second press shaping device B. Then, the press shaping may be performed only by the press shaping here.

[Effect of the Invention] According to the present invention, the stacking device is folded in a zigzag shape.
The stack of sheets stacked at 23 is shaped by two press shaping operations by the first shaping press device A and the second shaping press B while being transported to the downstream side of the stacking device 23,
In the stacking device 23, the stacked sheets stacked with curls on both sides in the transfer direction, that is, on both sides in the top-bottom direction can be shaped into a state in which the curls are completely corrected. Further, in the second shaping press device, in particular, both sides in the transfer direction of the stack of sheets, that is, the top and side surfaces of both sides in the vertical direction are straightened by the pressing plates 38a, 38b and the correction presses 33a, 33b to be aligned. As a result, the stacking sheet can be shaped into a state that is extremely close to a rectangular parallelepiped, so that it can be box-packed as it is, and the shaping of the stacking sheet can be completely mechanized without manual labor, and labor can be saved.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention. 30 is a transfer conveyor, 32 is a main press, 33a and 33b are correction presses, 36 is a vertically moving cylinder device, 37 is a support plate, and 38a and 38b are pressing plates.

Claims (1)

[Scope of utility model registration request] 1. A first and a second press shaping device A, B for press-shaping a stack of sheets stacked on the stacking device 23 in a transport direction downstream of a stacking device 23 for stacking zigzag sheets in the transport direction. The first shaping device A is arranged in sequence, and the first shaping device A is provided with a push-up bar 6 that pushes up the central portion of the lower surface of the stacking sheet in the transfer direction, and a pressing plate that is connected to the vertical moving means so as to press the center of the upper surface of the stacking sheet. 11 and correction plates 12a, 12b that are rotatably connected to both sides of the pressing plate 11 in the transfer direction and are connected to a rotating means, and press the upper surfaces of both sides of the stacking sheet in the transfer direction by rotating. The second press shaping device B includes a support plate 37 fixed to the lower end of the vertical movement means.
And pressing plates 38a, 38 mounted downward on both sides of the support plate 37 in the transfer direction and pressing the upper surfaces of both sides of the stack sheet in the transfer direction.
a main press 32 consisting of b and the main press 32 on both sides in the transfer direction, and on the lower side of the main press 32, they move forwards and backwards in opposite directions by mutually advancing and retracting operation means to the upper side on both sides in the transfer direction of the stack of sheets. A press shaping device for zigzag paper, which comprises a correction press 33a, 33b provided so as to press.