JPH0662245B2 - Flexible sheet-like stacking and conveying device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Fields Used] The present invention is a pair of gripping type conveyors (including roller type ones) which are subjected to appropriate processing such as a flexible synthetic resin film band and a flat tube band, and are sequentially dimensioned. The present invention relates to an apparatus for feeding a sheet of flexible sheet material on a pedestal and sequentially conveying it to the next processing station or processing station.

The flexible sheet-like material is a flat synthetic resin bag, a book cover, a diaper cover, a furoshiki, etc., and mainly relates to the treatment of a flat synthetic resin bag or an intermediate bag until it becomes a bag.

[Prior art and problems]

Conventionally, this type of apparatus has been used for a product receiving part of a bag making machine for producing bags from a synthetic resin film band or a flat tube band, and as a conventionally known device, for example, Japanese Patent Laid-Open No. 60-
As can be seen in Japanese Laid-Open Patent Publication No. 82564, the pedestal provided on the carry-out side of the paired-holding type conveyor is fixed to the machine frame of the bag-making machine, and the flexible sheet-like material group B stacked on top of this is fixed. As a means for transporting to the next station, a carrier that can reciprocate to the next station is provided with a claw for holding the flexible sheet-like object group B, whereby the sheet-like object group B is moved to the next station. Although it is transported to, it has a complicated mechanism such as opening / closing and tilting of the claw, and reciprocating movement of the carrier, and when grasping the stacked sheet-like object group B with the claw and opening the claw placed on the next station, There is a risk that the sheet-like object group B that has been piled up orderly will be disturbed, and the yield in the next process will be reduced.

[Problems to be solved]

The present invention is to prevent the structure from becoming complicated as in the device described in the above publication and to prevent the stacked sheet-like objects from being disturbed as much as possible.

[Means for solving problems]

According to the present invention, a cradle is provided on the carry-out side of a pair of holding type conveyors to sequentially receive the flexible sheet-like objects sent from the conveyor, and the group of sheet-like objects stacked on the cradle is batched to the next station. In the transporting device, the pedestal is made of a flat receiving plate, and one of the upstream end and the downstream end thereof serves as a mounting base, and supports the next station from the first station, which is the receiving position of the conveyor unloading side. After moving horizontally to the base, further in the direction of the mounting base of the receiving base, a horizontal reciprocating drive means for moving the free end of the receiving base on the side opposite to the mounting base to the supporting base of the next station. The mounting base is connected, and a notch is provided at a part of the free end of the pedestal, and the pedestal reaches the support base of the next station and moves to the outside of the rear support base toward the mounting base. Do Up to the above, the sheet-like object group is pushed down on the support base at the position of the cutout portion, and at other times, a holding member is provided which is retracted outside the movement locus of the receiving base. The above-mentioned problems are solved by providing a flexible sheet-like material stacking and conveying device characterized by the following.

[Embodiment]

The device of the invention will now be described on the basis of the illustrated exemplary embodiment.

Embodiment 1 As shown in FIGS. 1 to 3, 10 is an intermittently driven upper and lower paired-holding type conveyor (including roller type), and at the time of stoppage of the conveyor 10 on the carry-out side. There is provided a cutting device 11 which operates in accordance with the above. Reference numeral 12 is a pedestal composed of a flat receiving plate, which is the delivery level of the conveyor.
It is provided horizontally at a position L ₁ which is sufficiently lower than L ₀ , and in the example shown in the drawing, it is possible to descend to the level L ₂ of the support table 20 of the next station, which is lower than the position L ₁ .
It is connected to the up-and-down reciprocating drive means 13, and is connected by a cantilever support type by the horizontal reciprocating drive means 14 and the base portion 15 at the downstream end so as to reciprocate at least the length of the pedestal 12 in the downstream direction. is there. The free end 16 of the pedestal 12 is provided with a cutout portion 17. The horizontal stroke of the pedestal 12 should be at least 1.5 to 2 times this length. If the length is longer than this, the device itself becomes large.

Reference numeral 18 denotes a stopper, which may move up and down like a known one, or may not move up and down.

In the illustrated example, the support base 20 is provided so as to be able to reciprocate ahead on a guide rail 22 laid on the machine frame 21 in the upstream and downstream directions, and by a motor 23 mounted on this part,
It is provided so as to precede the vehicle, and is further provided so as to travel to the stations one after another. Further, both wings of the support base 20 can be undulated from a horizontal position to an upright position, respectively, and a pair of both blades 20a are provided on the outer edges of both blades 20a.
A pair of holding plates 20b that can be turned from a position perpendicular to these blades 20a to a position parallel to them are provided. This support base 20 has a group of sheet-like objects B on the U-shape or V-shape.
It is for bending into a letter shape and feeding it to the next station (see FIG. 4).

Reference numeral 30 designates a holding member having a standby position at the upstream side position of the support stand 20 of the next station, and when the support stand 12 reaches the support stand position, the support stand 20 is provided at the notch 17 position of the support stand 12. It is for pressing a surface and is connected to a second horizontal reciprocating drive means 31 for reciprocating in the upstream and downstream directions and a second vertical reciprocating drive means 32 for slightly moving up and down.

In the other figures, reference numeral 40 denotes an auxiliary pedestal, which is indicated by a signal indicating that the number of sheets fed out by the conveyor 10 has reached a predetermined number from a standby position L ₃ which is higher than the feeding level L _{0 of the} conveyor 10. Then, the sheet is lowered to the temporary receiving level L ₄ which is slightly lower than the delivery level L ₀ at a stretch, and the sheet-like material is temporarily received on the auxiliary receiving table 40 and then on the receiving table 12 for a few operation frequency periods of the conveyor 10 thereafter. After the group of sheet-like objects B stacked in a predetermined number are conveyed onto the next supporting base 20, when the receiving base 12 returns to the position below the auxiliary receiving base 40, the auxiliary receiving base 40 comes out to the downstream side of the stopper 18, and again. It is provided to return to the standby position. These reciprocating operations are also performed by the third vertical reciprocating driving means 41 and the third horizontal reciprocating driving means 42.

Operation of Embodiment 1 In the present invention configured as described above, the pedestal 12 has the auxiliary pedestal 40 with the first station position of the position for receiving the sheet-like material sent out from the conveyor 10 as the start position. In, it is located in the standby position L ₃ .

When the operation is started, the synthetic resin film strip T is sequentially sent out by the conveyor 10 to a predetermined size.
Each time it is stopped, it is sequentially cut into a predetermined size by the cutting device 11 to form a sheet-like object (for example, a bag), which is neatly stacked on the pedestal 12 using the stopper 18 as a guide to reach a predetermined number. A signal (normal count completion signal of the cycle counter) causes the auxiliary pedestal 40 to descend from the standby position L ₃ to the temporary receiving position L ₄ at once. Auxiliary cradle 4
If there is no 0, the temporary conveyor 10 is stopped.

Next, the pedestal 12 is moved to the position of the support 20 of the next station in the horizontal state by the vertical reciprocating driving means 13 and the horizontal reciprocating driving means 14, and the pedestal 12 is placed at a predetermined position on the supporting pedestal 20. .

Next, the pressing member 30 advances from the standby position to move the sheet-like object group B on the receiving table 12 at the notch 17 position of the receiving table 12,
The support 20 is pressed.

Then, the pedestal 12 is horizontally moved by the horizontal reciprocating drive means 14 in the direction of the base thereof to a position where the pedestal 12 is completely removed from the sheet-like object group B.

Next, while the pedestal 12 is returned upward by the vertical reciprocating drive means 13, the pedestal 12 is returned to the position for receiving the first sheet-like material. During this time, the pressing member 30 is also attached to the supporting base 20 and the receiving base 1.
Return to the standby position outside the movement trajectory of 2.

Thus, when the auxiliary receiving table 40 is moved in the downstream direction, the number of sheets (about 2 to 7 sheets) accumulated on the auxiliary receiving table 40 is prevented from moving by the stopper 18. The sheet is then transferred onto the receiving table 12, and the subsequent sheet-like materials by the conveyor 10 are sequentially stacked on this.

In the device without the auxiliary pedestal 40, the operation of the conveyor 10 is restarted by the return signal of the pedestal 12.

The above operation is shown in FIG. 6 by an operation diagram.

In the other one shown in the figure, when the sheet-like object group B is transferred from the auxiliary receiving table 40 to the receiving table 12, the lowermost sheet-like object of the sheet-like object group A is rubbed with the auxiliary receiving table 40. In order to prevent it from moving and disturbing its posture, the pedestal 12
When the sheet is returned to the position for receiving the sheet-like object, a decompression suction plate 50 which is almost flush with the pedestal 12 is provided at a position just corresponding to the notch 17. This vacuum suction board 50 is moved up and down slightly so that the sheet-shaped material A is transferred from the auxiliary receiving stand 40 to the receiving stand 12.
When transferring, the effect becomes more remarkable if the interlocking function is provided in which the auxiliary pedestal 40 is once raised to the level and then slowly moved to the pedestal 12 level as the auxiliary pedestal 40 moves in the downstream direction. .

Embodiment 2 As shown in FIG. 5, the cantilever base portion of the pedestal 12 is on the upstream end side unlike the embodiment 1, and the free end 16 is on the downstream side.

Further, the pressing member 30 is adapted to press the position of the notch 17 of the pedestal 12 when the pedestal 12 overlaps the support 20 from the standby position on the side outside the movement locus of the pedestal 12. The other parts are the same as those in the first embodiment, and are not shown. Even in this mode, it is sufficient that the stroke of the pedestal 12 is set to be slightly longer than the length of the sheet-shaped object group placed on the pedestal 12.

Operation of Embodiment 2 The receiving table 12 on which a predetermined number of stacked sheet-like objects B are placed is the same as in the first embodiment from the position for receiving the sheet-like objects as the first station to the supporting stand 20 of the next station. Move to.

Then, the sheet-shaped object group B on the pedestal 12 is supported by the pressing member 30 at the position of the notch 17 of the pedestal 12.
Press on the 0 plane.

Next, the pedestal 12 is pulled out toward the base portion 15, that is, in the upstream direction, and is returned to the first station again. At the same time, the pressing member 30 also returns to the standby position.

As described above, in the apparatus according to the first and second embodiments, each operation is performed by the sequence controller including a pure mechanical, electromagnetic or electronic type and a combination thereof. Further, each reciprocating drive means is exemplified by an air cylinder device using air pressure, but other rotary, one using a linear servomotor, one using other pure mechanical cam lever, or these This combination is also the same as the present invention.

〔The invention's effect〕

In the apparatus of the present invention, the cradle 12 moves from the first station to the next station while maintaining the horizontal state. The cradle 12 receives the sheet-like objects one by one until the next station is reached. The flat plate-shaped pedestal 12 is laid on top of the pedestal 12 even if it is not held by the grip claws, is not re-loaded, or is transferred to the support 20 of the next station. Since the notch portion 17 is pressed to pull out toward the support base of the pedestal 12, the sheet-shaped object group B does not move largely up and down, and the sheet-shaped object group B is neatly stacked even at the time of transshipment. Is not disturbed, the transshipment operation is simple, and the structure is simplified.

In particular, the pedestal 12 is merely a combination of reciprocating motions, and the structure of the entire apparatus can be simplified.

[Effects of Embodiment 1] A series of operations is performed until the operation of the pedestal 12 reaches from the first station to the next station, and the stacked sheet-like object group B is further pressed by the pressing member 30 to pull out the pedestal 12. This can be done by moving in the same horizontal direction, which simplifies the operation.

[Effects of Embodiment 2] In this embodiment, when the pedestal 12 is once overlaid on the support 20 of the next station and then returned, the sheet-like object group B is pressed and left by the pressing member 30 on the support 20. Therefore, the horizontal stroke of the pedestal 12 can be shortened.

In addition, by combining with the auxiliary pedestal 40 that performs the operation shown in FIG. 1, without stopping the conveyor 10 at all, a predetermined number of sheets are stacked in a continuous operation and the first station, You can intermittently transfer to the next station.

In addition, by adding a vacuum suction board 50, the auxiliary cradle 4
The posture of the sheet-shaped material is not disturbed even when the sheet-shaped material is transferred from 0 to the pedestal 12.

In the above description, the film strip T is conveyed by the conveyor 10 and cut by the cutting device to form a sheet-like object. However, before being sent to the conveyor 10, it becomes an individual sheet-like object. However, the present invention is the same.

[Brief description of drawings]

The drawings show the present invention. FIG. 1 is a side view of the mechanical structure of the first embodiment, FIG. 2 is a perspective view of a pedestal portion, and FIG. FIG. 4 is a vertical sectional side view of the pedestal when pressed, FIG. 4 is a front view of the support pedestal, FIG. 5 is a perspective view of the pedestal of the second embodiment, and FIG. 6 is an operation diagram. In the figure, 10 ... conveyor, 12 ... pedestal, 13 ... vertical reciprocating driving means, 15 ... base, 14 ... horizontal reciprocating driving means, 16 ... free end, 17 ... notch, 20 ... support Base, 30 ... Holding member, T ... Synthetic resin film band, B ... Sheet-like group.

Claims (1)

[Claims] 1. A pair of holding type conveyors is provided with a receiving stand on the carrying-out side for sequentially accumulating the flexible sheet-like objects sent out from the conveyor, and the group of stacked sheet-like objects on the receiving stand is collectively described as follows. In the apparatus for transporting to a station, the receiving table includes a flat receiving plate, and one of an upstream end and a downstream end thereof serves as a mounting base, and the first station to the next station, which is a receiving position of the conveyor unloading side, Horizontal reciprocating drive that moves the free end of the pedestal on the opposite side of the mounting base to the outside of the next station's support base after moving horizontally to the support base of Means and the mounting base are connected, and a notch is provided at a part of the free end of the pedestal so that the pedestal reaches the support base of the next station and extends outside the rear support base. Move in the direction Until it comes down, the sheet-like object group is pushed down on the support base at the position of the cutout portion, and at other times, a holding member is provided which is retracted outside the movement locus of the receiving base. Flexible sheet-like material stacking and conveying device characterized by being