JPH06590B2 - Delivery device for sheet-like articles - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a sheet-like article delivering apparatus, and more particularly, to separating sheet-like articles stacked one by one and delivering the sheet-like article. As for the device, it can be used for delivering a foldable bag in a foldable bag unfolding device.

(Prior Art) Japanese Patent Publication No. 45-35599 and Japanese Patent Laid-Open No. 55-21 are known as conventional techniques relating to a sheet-like article feeding device.
The ones described in JP-A-373, JP-A-55-61542, JP-A-55-61543, and JP-A-58-17035 are known.

The conventional technique described in the above publication is briefly described in Japanese Examined Patent Publication (Kokoku) No. 45-35599, in which an outer drum having a small hole except for the α angle is integrally formed with a wall, and the middle is partitioned by a wall. Consisting of an inner drum having a chamber and a compressed air chamber and an inner drum, the vacuum chamber has an opening θ, the compressed air chamber has an opening δ,
It is described that the paper can be fed or stopped without stopping the rotation of the outer drum.

Further, in Japanese Patent Laid-Open No. 55-21373, a discharge pipe in which air is blown to the end face of the boundary between the plate-like body suction-held by a suction pad and the second-layer plate-like body from the outside. It is described that the vacuum state between the two plate-shaped bodies is broken.

Further, Japanese Patent Laid-Open No. 55-61542 discloses that the vicinity of both ends of the thin plate is slightly lifted by a suction device, and then the entire thin plate is lifted.

Further, Japanese Patent Application Laid-Open No. 55-61543 describes that the whole thin plate is lifted after slightly lifting the vicinity of one end of the thin plate by an adsorption device. In addition, JP-A-58-1
No. 7035, a suction force by air pressure is applied to a specific strip-shaped region of a transport roller body having a large number of holes formed around the transport roller body, and the transport roller body is always brought close to or in contact with the surface of the sheet. Describes that a sheet is adsorbed on a leaf-by-leaf basis, and the adsorbed sheet is conveyed by rotating a conveyance roller body.

(Problems to be Solved by the Invention) However, the above conventional techniques have the following problems. That is, JP-B-45-35599,
Alternatively, the device described in JP-A-58-17035 is
It is designed to suck up and feed paper one by one with a drum that rotates continuously, but when sheet-like articles made of thin films are stacked, they are in close contact with each other, so two or more sheets In some cases, the sheet-shaped articles of the above were simultaneously supplied.

Further, the plate-shaped body supply device described in JP-A-55-21373 is designed to break the vacuum state between the plate-shaped bodies and separate the plate-shaped bodies by blowing air into the plate-shaped body. However, even when used for a sheet-like article made of a thin film or the like, a sufficient effect was not obtained.

In addition, JP-A-55-61542 or JP-A-55-55
In the method for separating thin plates described in Japanese Patent No. 61543, since all the thin plates are sequentially lifted by the suction device, each suction device requires play (if there is no play, the suction device sucks on the thin plate. Must be slid while maintaining the above), and a complicated structure is required. Further, there is no description relating to the supply of separated thin plates.

Therefore, it is an object of the present invention to provide a sheet-like article feeding device capable of reliably separating the stacked sheet-like articles one by one and feeding them efficiently.

(Means for Solving the Problems) The present invention relates to a sheet-like article delivering device for separating and delivering sheet-like articles that are stacked one by one and adsorbing the above-mentioned sheet-like parts on a peripheral surface. A rotatable cylindrical delivery roller having a large number of holes, a delivery roller elevating device for raising and lowering the delivery roller, and a delivery for giving rotation to the delivery roller when the delivery roller is in a raised position. Roller drive device, and an auxiliary suction tool that is disposed on the side opposite to the direction in which the sheet-shaped article is fed with respect to the delivery roller and that releases suction when in the raised position,
An auxiliary suction device elevating device for elevating and lowering the auxiliary suction device,
In a state where the auxiliary suction tool is in the raised position and the suction of the sheet-like article is released, the delivery roller reaches the raised position and the delivery roller driving device rotates the delivery roller. The above object is achieved by providing a delivery device for a sheet-like article characterized by being made.

(Example) Hereinafter, an example in which the sheet-shaped article delivery device of the present invention is used in a folding bag unfolding device shown in the drawings will be described.

FIG. 1 is a front view showing an embodiment in which a sheet-shaped article delivery device of the present invention is used in a folding bag developing device, FIG. 2 is a plan view thereof, and FIG. 3 is a left side view thereof. In these drawings, (1) is a delivery device that separates the folding bags (8) stacked on the pool conveyor (5) one by one and supplies them to the transport conveyor (2), and (2) is a folding device. A conveyor that feeds the folding bags (8) one by one to the bag opening device (3) and holds the folding bags (8) at a predetermined position. (3) sucks the vicinity of the mouth of the folding bags (8). Opening bag opening device, (4) air blowing device that blows air into the open folding bag (8), (5) feeding the folding bag (8) to below the sending device (1) A pool conveyor, and (6) is a container conveyor that conveys a container (9) that stores an opening and a foldable bag (8) that has been expanded, and the delivery device (1) described above.
Corresponds to one embodiment of the sheet-shaped article delivery device of the present invention, and the folding bag deploying device of the above-mentioned embodiment using the sheet-shaped article delivery device of the present invention is a stackable foldable device. This is a device for separating the bags (8) one by one and deploying them efficiently and surely in a rectangular tube shape. In this embodiment, the two folding bag deploying devices are symmetrical with respect to the center line. It is installed in. In FIGS. 1 and 2, a part of the right-side pair of foldable bag unfolding devices is omitted.

Detailed description of each part in the embodiment, the delivery device (1) as a delivery device of the sheet-shaped article of the present invention,
A rotatable cylindrical delivery roller (11) having a large number of holes (11a) for adsorbing the folding bag (8) as a sheet-shaped article, and raising and lowering the delivery roller (11) A feed roller elevating device (12), a feed roller driving device (13) for rotating the feed roller (11) when the feed roller (11) is in a raised position, and a feed roller (11) An auxiliary suction tool (14) which is disposed on the opposite side of the foldable bag (8) from the direction in which the foldable bag (8) is fed, and which prevents the foldable bag (8) from being fed by two sheets, and the auxiliary suction tool (14). It is provided with an auxiliary suction tool lifting device (15) that moves up and down. As shown in FIG. 4, the delivery roller (11) is rotatably fitted to the outer peripheral surface of the inner cylinder (11b) and has a large number of holes for adsorbing the folding bag (8) on the peripheral surface. A part (11a) is formed. The holes (11a) are arranged in three rows and a large number of holes on the peripheral surface near both ends of the delivery roller (11). or,
The inner cylinder (11b) has notches (11c) on the peripheral surface near both ends, respectively.
Each one has a hole, and as the delivery roller (11) rotates
The (11a) is arranged so as to pass over the notch (11c). The inner cylinder (11b) is fixedly installed on the arm (12a) of the feeding roller elevating device (12) with the cutout portion (11c) facing downward, and the feeding rollers (11) are provided at both ends thereof. The roller drive device (13) is rotated via the pressing roller (11d).

Further, the sending roller elevating device (12) includes the sending roller (11).
Is equipped with an arm (12a) fixedly installed, an air cylinder (12b) and a support shaft (12c), and the arm (12a) is oscillated by the air cylinder (12b) with the support shaft (12c) as a fulcrum. Has become.

Further, the delivery roller driving device (13) includes a delivery roller (11).
Roller for pressing the feed roller (11) when is at top dead center
A drive roller (13a) in contact with (11d) and a motor (13b) are provided, and two drive rollers (13a) are arranged at positions corresponding to the pressing roller (11d). Further, (13c) is a conductive belt.

The auxiliary suction tool (14) has a cylindrical shape as shown in FIG. 5, urethane rubber (14a) is attached to the lower surface of the auxiliary suction tool (14), and the folding bag (14b) is attached to the suction hole (14b) on the lower surface. It is designed to assist the adsorption of 8).

The auxiliary suction tool elevating device (15) includes an air cylinder (15a) directly connected to the auxiliary suction tool (14).

Further, (16) is an air blowing nozzle for separating the folding bag (8) sucked by the feeding roller (11) from the feeding roller (11), and two air blowing nozzles are provided. It should be noted that instead of the air blowing nozzle (16), the inner cylinder (11
A vacuum chamber and a compressed air chamber are provided in b), and the folding bag is compressed air.
(8) may be sent out and separated from the roller (11).

Further, the transfer conveyor (2) includes an endless belt (21) having a large number of intake holes (21a), a decompression box (22) arranged inside the endless belt (21), and a folding bag (8). ) Is held at a predetermined position with a nip roll (23). The endless belt (21) is provided with two rows × a large number of intake holes (21a). Also, two long holes (22a) are provided on the upper surface of the decompression box (22),
The intake hole (21a) is arranged so as to pass over the elongated hole (22a) as the endless belt (21) rotates. In addition, nip roll (2
3) uses the spindle (23a) as a fulcrum to support the endless belt (2
Pressed on 1). Incidentally, (21b) is a motor with a brake for driving the endless belt (21), (23b) is a motor for driving the nip roll (23), and (21c) and (23c) are conduction belts.

In addition, the bag opening device (3) is a suction unit for sucking the folding bag (8).
A pair of suction tools (31) having (31a) and a suction tool opening / closing device (32) for opening and closing the suction tools (31) are provided, and one suction tool (31) has a link mechanism (31b). And a biasing member (31c) for biasing the link mechanism (31b). As shown in FIG. 6, each suction tool (31) is provided with three suction parts (31a), and the suction surface of each suction part (31a) is pasted with silicone rubber.
Further, one (right side in FIG. 6) suction tool (31) includes a parallelogram-shaped link mechanism (31b), and a biasing tool (31c) made of an elastic body for biasing the link mechanism and the link. A stopper (31d) for restricting the operation of the mechanism is provided.
In this embodiment, the suction device (31) including the link mechanism (31b)
Is moved by the suction tool opening / closing device (32), but the suction tool (31) not having the link mechanism (31b) may be moved,
Further, both suction tools (31) may be moved. Further, both the suction tools (31) may be provided with a link mechanism (31b) that shifts in opposite directions. A coil spring may be used as the urging tool (31c).

The suction tool opening / closing device (32) includes an air cylinder (32a) that moves one suction tool (31) and a guide rod (32b) that guides the movement of the suction tool (31).

In addition, the air blowing device (4) is a folding bag (8) with an opening.
Blower air nozzle (41) and 4
And a pressurized air nozzle (42). As shown in FIG. 7, the pressurized air nozzles (42) are arranged at the four corners of the blower air nozzle (41), and their tips are curved outward. The blown air nozzle (41) is connected to the blower (41c) via the rotary shutter (41b) operated by the rotary cylinder (41a). The pressurized air nozzle (42) is connected to an air compressor (not shown) via a valve (not shown). In FIG. 1, the pressurized air nozzle (4
2) is omitted.

Further, the pool conveyor (5) is an endless belt (51) having a partition wall (51a) and a pillow (51b) for loosening the bag (8),
And a drive unit (52) for driving the endless belt (51). Incidentally, (51c) is a hole formed in the endless belt (51) for detecting the presence or absence of the folding bag (8).

Further, the container transfer conveyor (6) is a roller conveyor, an appropriate drive device, and the container (9) that has been transferred.
It is preferable to provide an appropriate stopper to stop the operation.

The foldable bag unfolding device of the above embodiment is configured as described above, and therefore, for example, the foldable bag having the gusset (81) and the handle (82) is flatly folded as shown in FIG.
Although it can be suitably used when the (8) is expanded into a rectangular tube shape and stored in the container (9) as shown in Fig. 9, a foldable bag having no gusset (81) or handle (82), etc. Can also be applied to.
Incidentally, (83) is a seal portion.

That is, the folding bags (8) (hereinafter, also referred to as bags) supplied by stacking 100 sheets each in each section (53) partitioned by the partition wall (51a) of the pool conveyor (5) are 5) is conveyed in the direction shown by the arrow in FIG.
Stop below (1). When the bags (8) are delivered one by one by the delivery device (1) and the bags (8) in the compartment (53) are lost, the bags (8) are arranged between the drive pulley and the driven pulley of the endless belt (51). The reflected photo switch (not shown) detects that the bag (8) is not present and advances the endless belt (51) one pitch. Also, the reflective photo switch and the hole (5
A reflection plate (not shown) is provided on an extension of the line connecting 1c). It is preferable to provide an appropriate endless belt position detecting device (not shown) so that the endless belt (51) can be stopped at a predetermined position with respect to the sending device (1).

The bag (8) supplied below the delivery device (1) in the above embodiment as the delivery device for the sheet-like article of the present invention is 1
The sheets are separated one by one and supplied onto the transfer conveyor (2). That is, first, the auxiliary suction tool lifting device (15)
Go down (14). At the same time when the auxiliary suction tool (14) starts to descend, the vacuum generator (not shown) connected to the suction hole (14b) by a pipe (not shown) also starts operating (when the auxiliary suction tool (14) is at the top dead center). Only the vacuum generator is designed to stop). or,
At the same time, the feeding roller lifting device (12) feeds the feeding roller.
(11) also descends. The blower (not shown) connected to the inner cylinder (11b) of the delivery roller (11) by a pipe (not shown) is always in operation. When the bag (8) is adsorbed by the descending delivery roller (11) and the auxiliary suction tool (14), the delivery roller (11) and the auxiliary suction tool (14) rise. When the delivery roller (11) reaches the top dead center, the pressing roller (11d) comes into contact with the constantly rotating drive roller (13a), and the delivery roller (11) is rotated. With the rotation of the delivery roller (11), the delivery roller (11)
While the bag (8) adsorbed on the inner cylinder (11b) is sequentially sucked into the hole (11a) through the notch (11c), the hole (11a) is notched (1).
When it comes out of 1c), the adsorption state is gradually released, and the air blown from the air blowing nozzle (16) separates it from the delivery roller (11) and supplies it onto the conveyor (2). The auxiliary suction device (14) reaches the top dead center slightly before the delivery roller (11) reaches the top dead center, and the suction of the bag by the auxiliary suction device (14) is released. , The adsorbed and delivered bag (8) does not drag the bag (8) stacked below it, and the close contact state between these uppermost bag (8) and the bag (8) below it Has a loosening effect for destroying. Also, the driving roller (1) that is constantly rotating without operating the sending roller (11) by turning on or off the motor or clutch.
Since this is done by pressing the feeding roller (11) to 3a), it is possible to solve the problems such as the service life, which occur when the motor or the clutch is frequently turned on and off. Again,
In this embodiment, air is constantly blown out from the air blowing nozzle (16), but the delivery roller (11)
You may make it blow out only when the rise of.

The bag (8) sent out on the conveyor (2) is
It is transported to the specified position by 1) and stopped. That is,
The bag (8) is conveyed while being sucked through the intake hole (21a),
A reflection type photo switch (PH1), which hangs downward through the nip roll (23) and stops at a position where the handle (82) of the bag (8) is held by the nip roll (23),
It is controlled by (PH2). The photo switches (PH1) and (PH2) are turned on by the bag (8) at the predetermined position where the bag (8) should be stopped.
Is arranged so that the photo switch (PH2) is shielded from light and the photo switch (PH2) is not shielded from light (see FIG. 8).
When the photo switch (P
When detected by H1) and (PH2), the motor with brake (21b) and the motor (23b) stop, and the bag opening device (3) prepares to open the bag (8). Incidentally, the motor with brake (21b) and the motor (23b) are operated again when the bag (8) is adsorbed by the adsorbing tool (31) to prepare for the next conveyance of the bag (8). Also, if the container (9) has not arrived at the predetermined position, the brake motor (21b) and the motor (23b) are stopped when the photo switch (PH1) is shielded from light, and the container (9) arrives. Wait until you do. The photo switch (PH1) is located slightly above the upper surface of the container (9) transported on the container transport conveyor (6), and the photo switch (PH2).
Is preferably disposed at a position slightly above the adsorption portion (31a).

The bag (8) conveyed between the pair of suction tools (31) of the bag opening device (3)
Is designed to adsorb the vicinity of the lip located at the bottom of the handle (82) and open the bag. That is, the pair of suction tools (31) are closed by the suction tool opening / closing device (32), but at this time, since one suction tool (31) has the link mechanism (31b) (see FIG. 6). ), As the suction portions (31a) are pressed against the bag (8), first, the respective suction portions (31a) are opposed to each other at a position where they are opposed to each other.
(8) is adsorbed. A vacuum generator (not shown) is connected to the suction part (31a) by a pipe (not shown), and the vacuum generator is configured to start its operation simultaneously with the start of the closing operation of the suction tool opening / closing device (32). Yes. Further, by continuing to push the suction portion (31a) that is suctioning the bag (8), the suction portion (31a) on the right side in FIG. It shifts downwards. Therefore, even if the inner surface of the bag (8) is in close contact, the gusset (8
1) The portion is deformed by the displacement, a gap is created inside the bag (8), and air enters the gap to destroy the close contact state of the inner surface of the bag (8). After destroying the close contact state of the inner surface of the bag (8), the pair of suction tools (31) are opened by the suction tool opening / closing device (32) while adsorbing the bag (8), and the lip of the bag (8) is opened. Is opened.

Air is blown into the bag (8) with the mouth edge opened by the air blowing device (4), and the bag (8) is expanded into a rectangular tube shape. That is, a pair of suction tools (3) that suction the bag (8) by the suction tool opening / closing device (32).
When (1) is opened and the rim of the bag (8) is opened, blown air and pressurized air are blown toward the opening of the bag (8) by the air blowing device (4). For example, the folding size of the bag (8) is 32 width.
When the depth is 5 mm and the depth is 600 mm, the blown air used is preferably 0.5 m ³ / min or more at 5 mmHg.
More preferably, it is 1 m ³ / min or more in mmHg.

The pressurized air used is preferably 1 kg / cm ² or more, more preferably 2 kg / cm ² or more.

The blower air blower (41c) is always operating,
Rotary shutter (41b) by rotary cylinder (41a)
The blown air is controlled by adjusting the opening ratio of, but if the blower air pressure is low, the rotary cylinder (41
You may control so that a) is always kept open. In the air blowing device (4), the blown air is effective for expanding the bag (8) as a whole, and the pressurized air is effective for expanding the four corners of the bag (8). Therefore, by using these together, the bag (8) can be developed in a short time while the bag (8) is left open.

The expanded bag (8) is released from the suction state by the suction tool (31) and is naturally dropped into the container (9) transported by the container transport conveyor (6).

At the same time when the suction state of the suction tool (31) is released, the blowing by the air blowing device (4) is also stopped. Also, in this embodiment, one bag (8) is loaded into each container (9) from two sets of folding type bag developing devices. It is not limited.

The container (9) loaded with the bag (8) is unloaded by the container transfer conveyor (6). Although all the operations are completed by the above, for example, the bag (8) delivered by the delivery device (1)
When the next bag is being transported by the transport conveyor (2)
Regarding the bag (8) that can start sending (8), even if it takes about 8 seconds from the start of sending to the end of carrying out the container (9), one bag (8) and the next bag (8) The bag (8) can be deployed with a delivery interval of 3 to 4 seconds.

Although the embodiments of the delivery device for the sheet-like article of the present invention have been described above, the delivery device is not limited to these, and, for example, a sheet, a thin steel plate or the like is delivered instead of the folding bag (8). Can also be suitably used.

Further, the sheet-like article delivery apparatus of the present invention can be suitably used for delivering sheet-like articles such as a printing machine and a tally machine.

Further, the sheet-like article may not be supplied by the pool conveyor (5). For example, it may be directly supplied below the delivery device (1), or the sheet-like articles may be stacked on a pallet, and a lift device may be provided below the delivery device (1) to provide a lift device. The above-mentioned palletized sheet-like articles may be supplied.

(Effects of the Invention) As described above, the sheet-like article delivery device of the present invention includes a delivery roller, a delivery roller driving device, an auxiliary suction tool, and the like, and is configured to stack stacked sheet-like articles. It can be reliably separated one by one, and can be sent efficiently, and its industrial utility value is high.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment in which a sheet-like article delivery device of the present invention is used in a folding bag developing device, FIG. 2 is a plan view thereof, and FIG. 3 is a left side view thereof. 4 is a detailed view of the feeding roller, (a) is a sectional view, (b) is a view taken along the line AA,
FIG. 5 is an enlarged front view of the auxiliary suction device (shown in section) and the auxiliary suction device lifting device, FIG. 6 is an enlarged plan view of the main part of the bag opening device, and FIG. FIG. 8 is an enlarged perspective view of the main part of the compressed air nozzle, and FIG. 8 is a front view of the folding bag, which also shows the positional relationship with the photo switch.
FIG. 9 is a perspective view of the container. (1): Feeding device (11): Feeding roller (11a): Hole (12): Feeding roller lifting device (13): Feeding roller driving device (14): Auxiliary suction tool (15): Auxiliary Suction tool lifting device (8): Foldable bag (sheet-like article)

Claims (2)

[Claims] 1. A sheet-like article delivering device for separating and delivering stacked sheet-like articles one by one, and having a plurality of holes for adsorbing the sheet-like articles on a peripheral surface thereof. A cylindrical delivery roller, a delivery roller elevating device for raising and lowering the delivery roller, a delivery roller drive device for rotating the delivery roller when the delivery roller is in a raised position, and the delivery device An auxiliary suction tool that is disposed on the opposite side of the sheet roller in the direction in which the sheet-shaped article is sent out, and that is sucked off when in the raised position; and an auxiliary suction tool lifting device that moves the auxiliary suction tool up and down. In a state in which the auxiliary suction tool is in the raised position and the suction of the sheet-like article is released, the delivery roller reaches the raised position and the delivery roller driving device rotates the delivery roller. Delivery device of a sheet-like article, characterized in that are no way obtain. 2. A delivery roller according to claim 1, wherein the delivery roller is rotatably fitted to an outer peripheral surface of an inner cylinder having a cutout portion.
Item. A sheet-like article delivery device according to the item.