JPH05254679A - Feeder for sheet material - Google Patents

Abstract

PURPOSE:To carry a suitable amount of works to a prescribed position at a high speed by installing a delivery device provided with claws protruding from both sides for supporting the works from a transferring device and a work holding part which can advance and retreat, and a pair of endless belts for holding, and delivering the works in order to a prescribed position. CONSTITUTION:A stacked works block is lifted up a little from the carrying surface of a conveyer by a stacking device 2, and is moved onto the next delivery device 3. The stacked works block drop and are placed on the claws 19 of the delivery device. The stacked works block inserted in the delivery device is held by a work holding member 24 which is positioned higher than the claws, and the claws retreat. The works placed between the work holding member and the claws drop onto the extension part 27a of a belt positioned under it, where the works at the lowest part are first put between belts 27, 28 in order, and the works are fed to a prescribed position such as a pocket one after another, in a partially overlapped condition by works in the front and rear. It is thus possible to carry paper patterns or the like at a high speed to improve work efficiency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a certain degree of rigidity that can be handled as a sheet-shaped paper pattern in a state where a box is developed or a similar die-cutting sheet, or other similar single sheet. The present invention relates to a device for feeding an appropriate amount of a sheet-like material such as paper or a thin plate to a predetermined position such as a pocket.

[0002]

2. Description of the Related Art At a predetermined position such as a pocket for a sack machine for making paper boxes, an appropriate amount of work is always unraveled so that the work-like work can be taken out one by one. Must be stored in a stored condition. Various devices have been developed to meet such demands.
For example, JP-A-63-258331 and JP-A-62-29
Those disclosed in Japanese Patent No. 5837, Japanese Utility Model Laid-Open No. 63-169537, etc. are known. However, in recent years, for example, a pattern for a small box, for example, a pattern with one side of 100 to 200 mm, has been remarkably increased in speed, and a high-speed conveyance of about 3000 sheets / minute is required. It is sent in a state of overwrapping.

However, when the pattern paper is conveyed, it is particularly necessary to keep the overlap amount constant. If there is a variation in the overlap amount, the leading edge of the next work or the die-cutting edge is the previous work. This causes the situation where the die cannot be properly inserted into a pocket or the like by hitting the die cutting edge. In the conventional device, all are sent out.
The pressure applied to the ink fluctuates greatly, which causes variations in the amount of overlap, and it has been impossible for the sheet feeding device up to now to carry the pattern paper or the like at high speed. Therefore, in the paper pattern, the work is manually supplied.

[0004]

As described above, high-speed conveyance of a pattern or the like into a pocket for a sucking machine requires manpower, which is an obstacle to labor saving and may cause a work error in some cases. There was a problem that it could not sufficiently cope with the speedup.

An object of the present invention is to eliminate the above-mentioned problems of the prior art, and therefore, a sheet-like shape which enables high-speed conveyance of a work such as a template to a predetermined position by an appropriate amount. An object is to provide a supply device.

[0006]

A sheet feeding device according to the present invention comprises a placing conveyor 1 for supporting stacked works, and a stacking work on the conveyor sent to a predetermined position. A transfer device 2 that lifts and moves the work and transfers it to the discharge device 3, a device that drops the stacked work received from the transfer device by an appropriate amount and discharges, and a work received from the discharge device in order. Characterized in that it includes a supply conveyor 4 composed of a pair of endless belts that are held and conveyed to a predetermined position 5 such as a pocket.
The ejector has a pawl 19 for receiving the stacking work and a work at a predetermined position.
It has a work holding member 24 such as a pusher capable of advancing and retracting for pressing a work and dropping a work below that. The lower belt of the feed conveyor is preferably configured to receive the work from the discharge device with a horizontal extension.

[0007]

When the stack of works is placed on the loading conveyor, the stack is gradually moved, and when the stack reaches the leading end of the work, it is conveyed by the transfer device waiting at that position. It is lifted slightly above the surface, moved onto the next ejector and falls there to rest on the ejector pawls 19. The work stack inserted in the discharging device is held by the work holding member 24 above the claw and the claw retracts, so that the work held by the work holding member and the work above it. Although the work is supported, the work placed between the work holding member and the claw falls to the extension of the belt below it, where the work at the bottom is sequentially moved between the belts. The work is sandwiched, and the work is sent to a predetermined position such as a pocket while partially overlapping the work in front of and behind it.

[0008]

Embodiments of the present invention will now be described with reference to the drawings. As shown in FIG. 1, a sheet-like material supplying apparatus according to the present invention comprises a placing conveyor 1 for placing a stack A of sheet-like works, and a stacking apparatus on the conveyor. A device 2 for transferring the work, an ejecting device 3 for receiving the stacking work from the transferring device, an appropriate amount of work from the ejecting device, and a predetermined position such as a pocket 5. It is constituted by the feeding conveyor 4.

The loading conveyor 1 supports a plurality of work stacks A thereon and is preferably a pair of conveyor belts so that it can move gradually or as shown in FIGS. 2 and 3. It is composed of a pair of slat conveyors or a chain conveyor, and is driven by the motor 6 and the transmission member 7. An ejector 3 and a feed conveyor 4 are located adjacent one end of the conveyor, and the work stack on the conveyor 1 is driven towards the end where the feed conveyor 4 is.

The transfer device 2 is configured to move between a position near the end of the conveyor 1 and a position above the discharge device 3. As shown in FIGS. 2 and 4, the transfer device 2
Are a pair of side plates 8a and 8b arranged in parallel with each other to support the laminated work, a proper number of claws 9a and 9b provided at the lower end of each side plate so as to be able to move up and down, and the operation of the claws. In this embodiment, the operating device includes an air cylinder 10 for moving each claw up and down and an air cylinder 11 for moving the claw forward and backward. Although FIG. 4 shows the actuating device for the side plate 8a on one side, the actuating device for the other side plate 8b is similarly constructed. In addition, each claw is placed in the notch 12 at the lower end of the side plate and is common to each side.
Installed on.

As shown in FIGS. 2 and 3, the side plates 8a and 8b provided with these claws and their operating devices are guided by the guide 1.
4 and the chain 15 and the like are movable together,
Moreover, it is supported on an adjustable support base 16 and the interval between them is adjustable. Reference numeral 17 in FIG. 1 is a motor for driving the chain 15. The transfer device 2 is a wire on the conveyor 1.
It plays a role of lifting the stack by the claws on both sides and moving it to a position above the discharging device 3 as shown in FIG.

Like the transfer device 2, the discharge device 3 also includes a pair of side plates 18a and 18b for supporting the work stack A between them, as shown in FIG. The pawls 19a, 19b are provided, and the pawls on each side plate are actuated by a suitable actuating device, an air cylinder 20 in the illustrated example. These claws are also arranged in the notches or through holes 21 of the respective side plates, and the claws 19a and 19b on both sides are moved forward to support the work laminated body thereon.

A stopper member 22 is provided vertically on the front side between the side plates 18a and 18b in order to set the work laminated body supported on the claws at a predetermined position, and the work is attached to the stopper member. A pressing member 23 that pushes the stacked body is arranged. In the illustrated example, each of the stopper member and the pressing member is composed of a pair of elongated flat plates, but may have another structure. Although the actuating device of the pressing member 23 is omitted in the figure, the pressing member is operated to press the work stack by an air cylinder or the like.

Further, each side plate 18a,
Pushers 24a and 24b as work holding members that move forward and backward from a horizontally elongated slot 26 in 18b are installed, and each pusher is driven by an operating device such as an air cylinder 25. The pusher on each side is higher than the claws on each side by an appropriate size, and is provided at the same height position. Therefore, when the pushers on both sides are advanced, the work between them is suppressed and the work above it is held so as not to drop. It is configured to drop a certain work.

The supply conveyor 4 comprises a pair of endless belts 27,
28, between which the work is sequentially gripped and fed into the pocket 5, and in the work conveying path from the discharge device 3 to the pocket 5, the belt sandwiches the work and the belt is held between them. To contact. As shown in FIG. 5, the lower belt 27 is a belt with holes, and the belt 27 below the upper belt 28 extends horizontally or substantially horizontally at the position of the discharging device 3 and its extension. A portion 27a is located directly below the discharge device 3 and a vacuum box 29 is arranged below the extension portion as shown in FIG. 6 so as to suck the work through the hole of the belt 27. ..

Further, as shown in FIGS. 5 and 6, the lower end 22a of the stopper member 22 is preferably made of a material having appropriate elasticity such as a leaf spring or rubber, and is close to the surface of the extension portion 27a of the belt. In the meantime, each work is configured so as to partially pass therethrough. Therefore, as shown in FIG. 5, the air nozzles 30 are preferably arranged on both sides of the lower end of the stopper member 22, and when a pair of work overlaps with each other, as shown in FIG. The air is blown back slightly and the work is sequentially passed through the position with an appropriate partial overlap (L). Therefore, the lower end of the stopper member plays a role of squeezing the work to be sent out.

As shown in FIG. 1, the pair of endless belts 27 and 28 are driven by a motor 31 via a transmission member 32 such as a chain, and on the other side opposite to the discharging device 3, the pocket 5 is provided. Close to or connected to the
It is arranged so that it can be sequentially fed at an appropriate angle.

FIGS. 8 and 9 show the different stages of operation of the ejector 3, which are located between the pawl 19 and the pusher 24 of the device, as will be described below.
It is sent out on the belt 27 for each amount of the upper work. The work is placed on the loading conveyor 1 in a stacked state. The work stack A on the conveyor 1 is gradually fed toward the leading end of the transfer device 2, and when it reaches a predetermined position, the transfer device 2 that has been waiting in advance at that position is activated. The claws 9a, 9b on both sides advance and then rise to slightly lift the work stack from the conveyor surface of the conveyor 1. Then, the motor 17 is operated to move the transfer device 2 through the chain 15 to above the discharging device 3 as shown in FIG. 3, and the claws 9a and 9b are retracted to move the wafer onto the discharging device. -Drop the stack.

The claws 19a, 19b of the ejector are in the forward position in advance and support the work stack dropped on it as shown in FIG. 8 on the claws. Then, the pushers 24a and 24b are moved forward by the actuating devices on both sides to push and hold the work located between the pushers from both sides. Then, the pawls 19a and 19b on both sides are retracted by the operation of the air cylinder 20, and the amount of work that was under the pusher and was supported on the pawls up to that point is shown in FIG.
Falls on the extension portion 27a. At that time, pusher-2
The work held by 4a and 24b and the work above it remain in the discharge device.

While the work on the belt portion 27a is being conveyed, the claws 19a and 19b of the discharging device advance and the pusher retracts to the state shown in FIG. -When the amount of clogging is reduced, the work between the claw and the pusher is dropped onto the belt portion as described above, and the same is repeated thereafter. Although the work is held by the pusher in this embodiment, the work may be held by an edge that can be moved back and forth instead.

The work on the belt portion 27a is restrained by the stopper member 22 while receiving the pressure due to the weight of the work on the belt 27a, and the work at the lowermost portion of the work on the belt 27 is held by the vacuum box 29. While sucking through the hole, it moves with the belt 27, passes through the gap with the lower end 22a of the stopper member,
Hold it between the belts 27 and 28. Next work A above it
2 is also moved together with the lowermost work A1, but the movement is suppressed by the lower end of the stopper member and the air nozzle 30, and when the next work comes into contact with the belt 27 to some extent, it is sucked. Belt 2 under action
It moves together with 7, and is sandwiched between the belts and fed in a partially overlapped state as shown in FIG. At this stage, the works are loosened one by one.

An appropriate amount of wire is provided on the extension 27a of the belt.
Due to the presence of the crater, the pressure (gravity) applied to the lowermost work is not excessive and the range of the pressure is small, so that it is properly and similarly discharged. With the work, the accuracy of the partial overlap amount (L) becomes high and constant,
In that state, it is sent to pocket 5, and in the pocket the previous work
It is sent in sequence from Ku. When a suitable amount of work is accumulated in the pocket, the operation of the device is stopped by the control device so that the work can be taken out from the pocket to the sucking machine. -It operates when there is less power.

[0023]

As described above, according to the present invention, an appropriate amount of work is always placed in the pocket from the loading conveyor via the transfer device, the discharging device and the supply conveyor. Since it is possible to improve the accuracy of the overlap amount of the works adjacent to each other and make the overlap amount constant, it is possible to convey the pattern paper at a high speed,
This type of work efficiency is significantly improved.

[Brief description of drawings]

FIG. 1 is a side view showing an entire sheet-like material supplying apparatus according to the present invention.

FIG. 2 is a perspective view of a transfer device used in the present invention and members related thereto.

FIG. 3 is a perspective view showing a state in which the transfer device is moved to another position.

FIG. 4 is a perspective view of the transfer device.

FIG. 5 is a perspective view showing the relationship between the discharging device used in the present invention and the belt of the supply conveyor thereunder.

FIG. 6 is a side view of the portion shown in FIG.

FIG. 7 is an enlarged view of part B in FIG.

FIG. 8 is a vertical cross-sectional view showing one operation stage of the discharging device.

FIG. 9 is a vertical cross-sectional view showing another operation stage of the discharging device.

[Explanation of symbols]

 1 Loading Conveyor 2 Transfer Device 3 Ejecting Device 4 Supply Conveyor 5 Predetermined Position 19a Claw 19b Claw 24a Work Holding Member 24b Work Holding Member 27 Endless Belt 27a Extension 28 Endless Belt

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B65H 5/24 7111-3F

Claims (1)

[Claims] 1. A loading conveyor on which a work sheet, which is a laminated sheet-like object, is placed, and when a work on the conveyor is sent to a predetermined position, the work conveyor is lifted to lift it above a discharging device. A transfer device that moves to and discharges the work, a claw protruding from both sides for supporting a work from the transfer device, and a predetermined position above the claw when the claw retracts. Ruwer
A discharge device having a work-retaining member that holds the work so that the work above it does not fall and drops the work below it and discharges it; A supply conveyor including a pair of endless belts for receiving the discharged work at an extension of a lower endless belt of a pair of endless belts described later, and sequentially holding and conveying the work to a predetermined position. Sheet feeding device.