JPS60204563A - Thin material feeder - Google Patents

Abstract

PURPOSE:To convey a thin material through a simple mechanism without using a vacuum suction system, by using a first endless belt to elevate the foremost thin material, and thereafter pinching the material between the first endless belt and a second endless belt provided along the upside of the first endless belt. CONSTITUTION:A first endless belt 3 is provided with a lowermost roller 10 near the upstream end of a carry-in conveyor 2. The first endless belt 3 comes into contact with the face of a bent sheet conveyed to the upstream end of the carry- in conveyor 2, so that the bent sheet is elevated by the friction between the belt 3 and the sheet. A second endless belt 4 is provided along the upside of the first endless belt in such a manner that the lowest portion of the second endless belt is located over the top of the foremost bent sheet on the carry-in conveyor. As a result, the bent sheet is pinched between both the endless belts 3, 4 when the sheet ascends to a roller 12'.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention allows thin articles to be sequentially prepared in a predetermined manner. Relating to a device for supplying. It should be noted that the term "thin material" as used herein means a quire that is a component of a book, a unfolded sheet-like box paper, and other filter paper or thin plate that can be handled as a single object.

For example, in bookbinding, the signatures are stacked in a series of matching sheets, and the signatures are taken out one by one from the lower end of each pocket to collect one book and then bound. Therefore, it is necessary to always keep an appropriate amount of signatures in each pocket, and in the process of supplying the signatures, a conventional signature supply device uses a vacuum to attract and transport the signatures one by one. Because this method was adopted, a vacuum source was required, and the device had the drawbacks of being complicated and having a complicated mechanism. Furthermore, there is a drawback that if a thin object is fed in lying on the conveying surface, it cannot be picked up. Note that it is desirable to unravel one piece at a time during the supply process, such as when supplying other thin items, such as signatures.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a feeding device that can loosen thin objects during the feeding process and that can feed thin objects with a simple mechanism without using vacuum suction.

The thin article feeding device according to the present invention has the following features: 1. The first endless belt passing through that position rises to an extent due to friction with the most thin surface of the first endless belt, and then between the first endless belt and the second endless belt provided along the upper side of the first endless belt. It was designed to be carried by holding it in place.

Next, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show the entirety of a feeding device according to an example of the present invention, and in this embodiment, a case is shown in which thin signatures are fed to a collating machine (1). has been done. This feeding device basically consists of an infeed conveyor (2) installed horizontally, and a belt-type conveyor installed between the tip of the infeed conveyor (2) and the tip (1). The belt-type conveyor has the first and second conveyors.
It consists of endless belts (3) and (4).

A large number of signatures are placed on the feed conveyor (2),
Therefore, while the signatures are temporarily pooled, the signatures are gradually advanced against a belt-type conveyor located at the tip of the conveyor, and in the illustrated example, the signatures are arranged in parallel as shown in FIG. The guide plate includes a pair of endless chains (5) and a pair of guide plates (6) disposed on both sides of the endless chains at substantially the same height as the endless chains (5), and further includes side plates (7) if desired. Each chain (5) is connected to a suitable transmission member (9) by a motor (8).
) is driven through.

Note that the signatures are placed at an angle on the feed conveyor (2). This infeed conveyor (2) does not necessarily have to consist of a chain, but may also be another type of conveyor, such as a conventional belt conveyor or a slat conveyor.

The first endless belt (3), as shown in FIG.
It has a belt path that passes near the tip of the feed conveyor (2) and rises diagonally, and in that path, it contacts the surface of the signatures sent to the tip of the feed conveyor (2) and holds the signatures by friction with the belt. It's supposed to be raised. Therefore, at least one side of the endless belt (3) is a friction surface, or the endless belt (3) consists of a friction belt.

This first endless belt (3) extends to the position of the pocket (1). Old) is the roller near the pocket on which the endless belt (3) is hung. (1z is a series of rollers, one of which is supported resiliently by a spring, on which the belt rests in intermediate positions.

The second endless belt (4) is located above the first endless belt (3) as shown in FIG.
), the lower end of which is spaced above the upper end of the most advanced signature on the infeed conveyor (2), so that the second endless belt ( 4) The lower end roller Ol is provided at a suitable position on the tip of the infeed conveyor (2). And the second endless belt (4)
passes from the roller (QO) at the lower end of the first endless belt (3) to the roller (12') at the rising position and the roller (11') on the exit side.
The endless belt has a path at least partially along the belt path leading to the roller (12'), and in particular, in the ascending path leading to the roller (12'), the signatures are held between the first and second endless belts. As shown in FIG. 1, this second endless belt (4) has a roller Q31 at its lower end.

The first endless belt (3
), so that in that case the second
A roller (141) at the outlet end on which the endless belt (4) is hung is provided close to the outlet side extender a11 of the first endless belt (3). (151 is the second endless belt,
(4) is a series of intermediate rollers. There is no intermediate roller in the lower belt path from the roller Q31 of the second endless belt (4) to the exit roller (141), so the belt in between is connected to the first endless belt (3) V below it.
C is forced.

In particular, when supplying signatures to pocket (1), the first
As shown in the figure, the roller Q41 on the exit side of the second endless belt (4) is made to protrude toward the pocket side from the roller Q41 on the exit side of the first endless belt (3) below it, and Preferably, the end of the endless belt (4) overhangs the pocket +1), which allows the signatures to fall into the pocket with a relatively small slope.

In addition, it is preferable to provide a pair of brush wheels (IIEI, 0'7) rotatably driven on both sides of the endless belt in order to send out the signatures at the exit end to the pocket (1).
(3) and (4) are guide plates provided on both sides of the conveyance path.

It is desirable that the height of the lower end of the second endless belt can be adjusted depending on the dimensions of the signatures to be supplied, and a manually operated 7% handle (Is) is provided for this purpose. As shown in Figure 4, the handle 081
by turning the first reno (-Ql) to its fulcrum (1
A roller (13) pivots around a second lever (21) through a rod (a), pivots around a fulcrum (21'), and is connected to the lever (21). move the support arm (22) up and down. As shown in the figure, the end plate (23) of the Boke-Soto (1) and the roller (111) on the exit side of the first endless belt (3) are attached to the lever a9, and the second endless belt (4) is attached to the lever a9. Preferably, the end plate of the pocket and the roller (Ill) can be adjusted at the same time as well as the lower end position of the pocket.

Note that (24) in the figure is a support frame, which is arranged on both sides. (25) is a driving motor for the first endless belt (24), and therefore, the first endless belt (3) is driven by power, but the second endless belt (4) is driven by power. Since it is driven by contact, a free belt may be used.

During operation, the infeed conveyor (2) is loaded with an arbitrary amount of signatures (with N loaded, the infeed conveyor (2) is an endless pel) by the operation of the motor (8) and the motor (25). (3)
, (4), and sequentially transfer the signatures one by one. During the transfer process, as shown in Figure 5, the most advanced signature (shu) comes into contact with the surface of the first endless belt (3) while being pushed by the following signatures, and is slightly lifted by the friction between them. First and second endless belts (3)
, (4), and at the same time, the next signature A2 is lifted up by friction with the first endless belt (3) in the same way as the previous signature, and thereafter, it is transferred in the same way one after another. Ru. The signatures held between the belts are carried as they are to the position of the pocket (1), with both ends overlapping adjacent signatures, and fed into the pocket.

In this way, since the signatures are first lifted by friction with the first endless belt, the signatures on the feed conveyor (2) are properly transferred. Figure 7 shows the conventional vacuum transfer method, but in the vacuum suction method, as shown in the figure,
There was a drawback that if the signatures were lying on the conveyance surface on the infeed conveyor (2), that is, if they were sent almost perpendicularly to the vacuum suction part (26) K, they could not be suctioned, but this problem does not exist.

In the above embodiment, the second endless belt (4) runs along the first endless belt up to the position of the pocket (1) as shown in . It only needs to be along the endless belt (3), and may not necessarily extend to the position of the pocket (1).

In this case, each signature is conveyed from the middle to the pocket (1) while being placed on the endless belt (3), and the pocket (
1) properly fed into the interior.

Although the above embodiment deals with signatures, the same applies to the case where unfolded sheet-shaped boxes, flexible thin plates, and other thin objects are fed to predetermined positions.

Therefore, according to the present invention, a large amount of thin objects can be stored on the feed conveyor, and a large amount of thin objects can be handled at one time. At the tip of the feeding conveyor, the thin objects are lifted up one by one due to friction with the belt, so that they are loosened, held, and fed to a predetermined position. Therefore, it is transported appropriately and does not use vacuum suction, so
It does not require a vacuum source and is therefore compact and has a simple mechanism.

@Drawing 1 is an elevational view showing the structure of a thin material feeding device according to an example of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side view seen from direction B in FIG. 1, and FIG. FIG. 5 is an enlarged elevational view of a portion of the device in operation, and FIG. 6 is a schematic elevational view of another embodiment.
FIG. 7 is an elevational view showing a conventional vacuum suction method. In the figure, 1...predetermined position, 2... feeding conveyor, 3... first endless belt, 4... Second endless belt, 18...handle, 19.21...first pivot lever
Figure 2 Figure 5

Claims (1)

[Scope of Claims] (1) A feed conveyor provided almost horizontally on which a large number of thin objects to be fed are placed; a first endless belt which has a belt path extending to a position and which sequentially raises and conveys the thin articles one by one by friction in contact with the surface of the thin articles sent to the leading edge of the feeding conveyor; a portion located apart from above the upper end of the most advanced thin object on the feeding conveyor and located above the first endless belt for conveying the thin object by sandwiching the thin object between the conveyor and the first endless belt; A thin article feeding device including a second endless belt having a belt path that extends along the belt path. (2. The apparatus according to claim 1, wherein the second endless belt also extends to the predetermined position along the first endless belt.) In the device according to item 1,
The thin article is a signature, and a pocket for a collating machine is provided at the predetermined position, and the end of the second heating belt on the side of the pocket extends beyond the remainder of the first endless belt. Feeding device for thin materials that overhangs the ``pocket''. (4) 6% allowance In the device according to claim 1,
A thin material feeding device, wherein the position of the lower end of the second endless belt can be adjusted to a certain extent.