JPH0662246B2 - Sheet-like stack receiving device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a flexible sheet material, for example, a flat bag made of a synthetic resin film, a book cover, a synthetic resin sheet, a furoshiki, and the like, which are mainly made of a synthetic resin film. The present invention relates to a device for orderly stacking a predetermined number of sheets.

[Prior art]

Conventionally, as this type of apparatus, a flexible sheet-shaped feeding means 10 composed of a pair of upper and lower holding type conveyors (including rollers) and a sheet-shaped article-like main pedestal 11 provided at a position lower than this feeding level L _0. The lower end of the flexible sheet-like material A ₁ is sent onto the main receiving table 11 by the sending-out means up to a predetermined number of sheets and stacked at the lower end.
It has a downward comb-tooth-like or fork-shaped stopper 13 that slightly rises while removing a group of sheet-like objects A ₁ that have reached the top and stacked a predetermined number of them, and are upstream of the downstream side position of said stopper 13. Is provided with a comb-teeth-shaped auxiliary pedestal 14, and the comb-teeth of this auxiliary pedestal 14 pass through the teeth of the stopper 13 so as not to overlap and overlap the main pedestal 11. The position L ₁ is a position higher than the delivery level L ₀ by the conveyor, and the conveyor 10
In response to the signal (the count completion signal of the normal cycle counter) that the number of sheets A to be sent out reaches the set predetermined number, the auxiliary pedestal 14 is at a position L ₂ slightly lower than the conveyor level L _0. All at once, and after removing the sheet-like objects A ₁ stacked on the main pedestal 11 from the main pedestal 11, the auxiliary pedestal 14 is moved in the downstream direction,
A device is known in which the auxiliary receiving base 14 is pulled out, the sheet-like material on the auxiliary receiving base 14 is transferred to the main receiving base 11, and the auxiliary receiving base 14 is returned to the waiting position again (for example, Japanese Patent Laid-Open No. Sho 60).
-78730 gazette and FIG. 4).

However, in this known device, the sheet-like object group on the auxiliary receiving stand 14 is transferred to the main receiving stand 11 and the auxiliary receiving stand 1
4 when to move in a downstream direction, the auxiliary receiving member 14 and be cowpea slight frictional Sai force of the sheet A _1, the number of the sheet A ₁ on the auxiliary pedestal 14 is a very small, very Since it is lightweight, it may be carried along with the movement of the auxiliary pedestal 14 in the downstream direction, and the posture of the sheet-like objects A ₁ may be disturbed, or the sheet-like objects A ₁ may be stacked after the wrinkles or be difficult to perform post-processing.

[Problems to be solved]

Therefore, the present invention, when the auxiliary cradle is pulled out to the downstream side, some of the stacked sheet-like objects A ₁ group on the auxiliary pedestal are not moved to the downstream side together with this, and when viewed in a plane, at that position, Providing the market with a device for transferring to the main cradle,
This is because it does not disturb the stacking of the subsequent sheet-like substances and facilitates and ensures the post-treatment.

[Means for solving problems]

In the known device as described above, the present invention provides at least the lowermost sheet-like object on the auxiliary pedestal at the upstream side end portion of the hand pedestal or at substantially the same level position. The problem has been solved by providing a sheet-like object stacking and receiving device characterized in that a fixing means for temporarily temporarily fixing the objects to the cradle is provided.

[Embodiment]

Embodiment 1 It is shown in FIG. 1 and FIG. 2, and the known part is the fourth part.
It is exactly the same as the one illustrated. 15, 16, 1 in the figure
Denoted at 7 are drive means for moving the auxiliary pedestal 14, respectively.
And a third air cylinder device is used.

An embodiment of the fixing means 20 is shown in FIGS.
In the figure, the root of the main cradle 11, that is, the upstream end 21
And a vacuum pump 23 having a vacuum suction hole 22 whose upper surface is flush with the main pedestal 11 and a vacuum pump 2 connected to the vacuum chamber 23.
4 and a reduced pressure adsorption device. In this aspect, when the auxiliary pedestal 14 is lowered to the level of the main pedestal 11 in the decompression chamber 23 which is long in the width direction of the main pedestal 11, the auxiliary pedestal 14 is substantially flush with the main pedestal 11. Escape grooves 25 are provided corresponding to the comb teeth positions of the auxiliary pedestal 14 so that the auxiliary pedestal 14 can be lowered to a slightly lower position.

This depressurizing chamber 23 may be provided either at the center of the width of the main pedestal 11 or at the left and right with respect to the center line of the width.

In this mode, after a predetermined number of sheets are stacked on the main pedestal 11, the auxiliary pedestal 14 descends from the waiting position higher than the delivery level L _{0 of the} conveyor 10 to the state shown in FIG. Subsequent sheet-like materials that are sent out are received on the auxiliary pedestal 14 and the stopper 13 is slightly raised during this time, and the stacked sheet-like materials A on the main pedestal 11 are removed by an appropriate means. When it descends again and the auxiliary pedestal 14 is lowered to the level of the main pedestal 11, the lowermost _one of the sheet-like objects A ₁ stacked on the auxiliary pedestal 14 by about 2 to 7 sheets is the decompression chamber. 23
The pressure-reducing adsorption holes 22 are substantially flush with each other, that is, flush with each other, and are fixed by adsorption.

Then, the auxiliary pedestal 14 is pulled out to the downstream side of the stopper 13 by the air cylinder device 17.

Accordingly, the sheet-like materials are transferred to the main receiving table 11 as they are, and then stacked up to a predetermined number of sheets, and when they are collected and removed from the main receiving table 11, they are stronger than the suction force of the suction device. Remove by force. Alternatively, the adsorption system damper 25 when removing
May be temporarily closed.

In the other figures, reference numeral 26 is a cutting device provided immediately downstream of the feeding means 10, which is activated each time the intermittent operation of the feeding means 10 is stopped, cuts the fed tape into a predetermined size, and cuts each into a sheet shape. It is to be thing A ₁ .

Embodiment 2 It is shown in FIG. 3, in which the same reference numerals as those in FIGS. 1 and 2 indicate the same constituent elements or parts, and have the same operation.

The difference lies in the fixing means 20, which is provided with one or preferably two or four symmetrically holding claws 32 supported by a horizontal axis 31 parallel to the upstream end of the main pedestal 11. The pressing claw 32 is changed from the open state to the closed state (the position indicated by the chain line in FIG. 3) by the fourth drive means 34 in accordance with the detection signal of the sensor 33 that detects that the auxiliary pedestal 14 has descended to the level of the main pedestal 11. It is rotated by means of, and several sheet-like objects A ₁ group on the auxiliary pedestal 14 are pressed against the collective main pedestal 11. Needless to say, the positions pressed by the claws 32 are between the comb teeth of the auxiliary pedestal.

After the pressing operation by the pressing claw 32, the auxiliary receiving base 14 moves to the downstream side of the stopper 13. Therefore, the sheet material
Group A ₁ remains on the main cradle 11.

The pressing claws 32 may be released at any time after the auxiliary cradle is removed and after the next predetermined number of sheets are completely stacked until the sheet-shaped material A ₁ group on the main cradle is removed. The fourth drive means 34 in response to a signal from an appropriate operating part of
By operating in the opposite direction.

For example, the presser pawl 3 is activated by the detection signal of the limit sensor 33 which is turned on when the auxiliary pedestal 14 moves to the most downstream side.
Open two.

Embodiment 3 In FIG. 4 and FIG. 5, the same reference numerals as in the first and second embodiments indicate the same constituent elements or the same constituent parts, and achieve the same operation and effect. .

The difference is that the main pedestal 11a can reciprocate downward and downward separately from the support frame 40 of the feeding means 10, and the main pedestal 11a moves the sheet-like material A ₁ group to the next station. It also serves as a transferer for transporting to.

The auxiliary pedestal 14 is supplied by the air cylinder device 15, which is a single vertical drive means, to the delivery level L _{0 of the} delivery means 10.
It is provided so that a higher waiting position and a temporary receiving level lower than the sending level L ₀ can be selected.
Further, by the air cylinder device 17, the auxiliary pedestal 14 is
It is provided so as to be located downstream of the stopper 13 in the lower position.

In particular, the decompression adsorption device 20 of the first embodiment is provided on the support frame 40 at a position where it does not come into contact with the upstream ends of the main pedestal 11a and the auxiliary pedestal 14 and the level of the main pedestal 11a at the time of receiving the sheet-shaped material. It is provided at the same level and is where the upstream end of the sheet-like material A ₁ on the auxiliary pedestal 14 can be placed. This depressurized adsorption device 20 has a fourth air cylinder with respect to the support frame 40. The device 41 is provided so that its height can be changed from the height of the main pedestal 11 to a position substantially flush with the height of the auxiliary pedestal 14, and the height of the auxiliary pedestal 14 can be changed. Immediately before transferring the sheet-like object A ₁ group of the above to the main pedestal 11a, the fourth air cylinder device 41 lowers the waiting position (main From the same height of the pedestal 11) to the position of the auxiliary pedestal 14 Those that most positioned below the upstream end of the sheet A ₁ group on 14 adsorbed by temporarily fixed to the suction device 20, an auxiliary pedestal 14 along with the move in the downstream direction than the stopper 13, The reduced pressure adsorption device 20 is provided so as to descend to the level of the main pedestal 11a.

In the embodiment diagrams of FIGS. 4 and 5, the height difference between the main pedestal 11 and the auxiliary pedestal 13 is exaggeratedly displayed, but as an example, the length of each sheet-like object is Is 20 to 30 cm, the height difference is 15 to 30 mm, and even if the vacuum suction chamber 23 moves up and down, it is almost always in the same plane as the main pedestal 11. .

In this embodiment, the present invention is the same even if the depressurizing adsorption chamber 23 is provided instead of the presser pawl 32 in the machine frame 40 portion as in the case of the second embodiment. When the sheet-shaped material A ₁ group is transferred onto the main pedestal 11, they are temporarily fixed to the main pedestal 11 without being moved, so that the auxiliary pedestal 14 and the sheet-shaped material A ₁ group are fixed. Even if a part of the sheets temporarily contacts, there is no risk of the auxiliary pedestal 14 moving and the subsequent sheet-like objects are stacked accurately, and post-processing can be performed easily and accurately.

[Effect of Embodiment]

In the first embodiment, the fixing means is vacuum adsorption,
Since there is no moving member and the structure is simple, in the second embodiment, the decompression chamber 23 is unnecessary.

Although the pressing claws 32 are shown to press the upstream side of the sheet-like material A ₁ group in the above-mentioned example, the present invention is not different even if the both side parts are pressed.

In the third embodiment, the main pedestal 11 is movable, and the depressurization adsorption device 20 similar to that of the first embodiment is provided almost at the level of the main pedestal 11 for accurate stacking.

[Brief description of drawings]

The drawings relate to the present invention, and FIG. 1 shows the first embodiment.
2 is a mechanical front view of the fixing means portion of FIG. 1, FIG. 3 is a mechanical side view of the second embodiment, and FIG. 4 is a lateral side view of the third embodiment. A side view, FIG. 5 is a mechanical side view showing a state in which the sheet-like material is being transferred from the auxiliary receiving base of the embodiment of FIG. 4 to the main receiving base, and FIG. 6 is a mechanical side view of the prior art. In the figure, 11 ... main cradle, 14 ... auxiliary cradle, 20 ... fixing means.

Claims (3)

[Claims] 1. A pair of upper and lower anti-holding type flexible sheet-like article feeding means, a sheet-like article main pedestal horizontally provided at a position lower than the feeding level, and the flexible sheet on the main pedestal. While the sheet-like objects are sent out by the sending-out means and stacked up to a predetermined number, the lower end is on the upper surface of the main receiving table or lower than this, and the sheet-like objects are received by the predetermined number of stacking signals. It has a downward comb-tooth-like or fork-like stopper provided across the transverse direction of the main cradle that rises sufficiently for removal from above and waits, then returns again after removing the sheet-like material, A comb-teeth-shaped auxiliary pedestal is directed toward the upstream side from the position downstream of the stopper, and each comb tooth of the auxiliary pedestal passes while avoiding the comb teeth or the fork teeth of the stopper to form an auxiliary pedestal. At the position where it overlaps with the main cradle From a waiting position higher than the delivery level of the delivery means, a signal that the delivery means has delivered a predetermined number of sheets of the flexible sheet is lowered to a position slightly lower than the delivery level, and on the main cradle. After removing the stacked sheets, the auxiliary pedestal is further horizontally moved to a position downstream of the stopper and lifted, and then returned to the waiting position again. Sheet-like object stacking, characterized in that fixing means for temporarily temporarily fixing at least the lowermost sheet-like object among the sheet-like objects on the auxiliary pedestal is provided at approximately the same level position. Receiving device. 2. The pressure-reducing device having a suction hole, wherein the fixing means is at least approximately flush with the surface of the auxiliary pedestal from immediately before the auxiliary pedestal starts moving downstream from the stopper position to the completion of the movement. The sheet stack receiving device according to claim 1, which is a suction device. 3. The fixing means is provided on the sending-out means supporting frame or a member which is integral with the sending-out means and does not move in the upstream and downstream directions. 2. The sheet-like article according to claim 1, wherein the sheet-like object group on the auxiliary pedestal is a device for holding the auxiliary pedestal while the auxiliary pedestal moves from a position above the main pedestal to a position downstream of the stopper. Object stacking device.