JPH01285539A - Fold leaf supplier - Google Patents

Abstract

PURPOSE:To prevent a fold leaf from generating a wrinkle and/or dislocation in no relation to a paper quality of the fold leaf and its applied back pressure or the like by lifting the fold leaf to be sucked placing its folded side in the bottom, in the case of a device automatically supplying the fold leaf to a pocket for a leaf binder. CONSTITUTION:This fold leaf supplier is provided with a supply conveyer 2 conveying a fold leaf A in a vertically placed condition, pocket 1 for a leaf binder and a transfer loading device between the pocket 1 and the supply conveyer 2. This transfer loading device contains a pair of endless belts 3, 4 lifting the fold leaf A to be successively held in the foremost end on the conveyer 2 and a vacuum device 5 for slightly lifting the fold leaf A to be sucked to the bet 3 before the fold leaf A is put between these belts. Because the fold leaf A on the conveyer 2 places the folded side in the bottom, when a side coming into contact with the belt 3 is sucked and lifted, also the opposite side is naturally lifted, and the fold leaf A generates no wrinkle and dislocation. While the lifted fold leaf A adapts its point end to a butt facing part 11 of a folding back member 10 to be folded back, and the fold leaf A is fed in a proper attitude into the pocket 1 for the leaf binder.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a signature feeding device for automatically feeding signatures into pockets for a collating machine.

(Prior Art) When binding various books such as magazines and paperbacks, a predetermined number of printed pages, ie, signatures, which are part of the book, are placed in a series of corresponding pockets.

A portion of the signatures are taken out from the lower end of each pocket, and one book is collected and bound.

Therefore, each pocket must always store an appropriate amount of signatures in an unraveled state.

In particular, the present invention includes a supply conveyor that supports a series or a large number of signatures in an upright position and conveys them at low speed, and at least a pair of endless conveyors that sequentially pinch the signatures sent to the tip of the supply conveyor and convey them to pockets. This is an improvement to a signature supply device consisting of a transfer device consisting of a belt, and a vacuum device located on the back side of one endless belt to adsorb the signatures and raise them slightly by the belt, As a conventional device of this type, the one shown in FIG. 6 is known. In Figure 6 (1)
is the pocket for the collating machine, (2) is the supply conveyor,
(3) and (4) are endless belts, and (5) is a vacuum device. One of the endless belts (3) extends upward from below the end of the delivery side of the supply conveyor (2), and a vacuum device is installed at a position where it can suck up the signatures at the end of the supply conveyor (2). (
5) is installed, and the vacuum device adsorbs the most advanced signature onto the endless belt (3), raises it slightly, and places the slightly raised signature between the endless belts (3) and (4) in a pocket. (1
).

(Problem to be Solved by the Invention) In the conventional apparatus, a series of signatures are each placed vertically on the supply conveyor (2) with the folded side facing up, and are therefore fed with the folded side first, and are then fed as they are. Back pressure applied to the leading signature being fed into the pocket if the paper quality of the signature is thin or being picked up, i.e. the leading signature is pushed forward by other signatures on the feed conveyor If the force is large, or if the signature has many pages and is therefore relatively heavy, the leaf (a,) of the signature on the side that is in contact with the endless belt (3), as shown in Figure 7, There is a problem that only one side is attracted and lifted while the other side is lifted with a delay, which causes deviations and wrinkles in the signatures, causing misaligned pages.

The purpose of the present invention is to solve the above-mentioned problems of the prior art, and therefore, it is possible to properly attract and lift a signature at all times, regardless of the paper quality of the signature, the number of pages, or the back pressure applied to the signature. It is an object of the present invention to provide a signature feeding device that can appropriately feed signatures into pockets.

(Means for Solving the Problems) A signature supply device according to the present invention includes a supply conveyor (2) that supports and conveys a series of signatures, and a pair of endless belts (2) that ascend while sequentially sandwiching the signatures on the conveyor. 3).

(4) and a vacuum device (5) for suctioning and slightly lifting the signatures before being sandwiched between the belts, and each signature is placed upright with its folded side down on the supply conveyor. , and includes a member (10) that folds back the signature raised between the pair of endless belts in the direction opposite to the traveling direction when the front end of the signature hits, and an abutment portion (10) of the member that the front end of the signature hits against.
The distance between the endless belt 11) and the upper end of the endless belt (3) where the vacuum device is located or the upper edge of the roller located ahead in the direction of movement of the endless belt (3) is approximately the same as the vertical dimension of the signature.

(Function) Since the folded side of the signatures placed vertically on the supply conveyor (2) is downward, when the side of the signatures in contact with the endless belt (3) is attracted and lifted, the opposite side of the signatures will naturally be lifted as well. , Therefore, both the front and back sides of the signature are lifted, and the signature is not shifted or wrinkled. Also, the tip of the signature lifted between the endless belts is at the abutment part (10) of the folding member (lO). 11)
The collating machine pocket (1)
It is sent in the correct position as it is.

(Example) Next, the present invention will be described in detail with reference to the drawings. 1st
2 and 2 show an example of a signature supplying apparatus according to the present invention, and in this signature supplying apparatus, as shown in the figure, a supply conveyor ( 2), and a transfer device between the collating machine pocket (1) and the supply conveyor (2), which transfer device sequentially transfers the signatures sent to the leading edge on the supply conveyor (2). It includes a pair of endless belts (3) and (4) that lift up while being sandwiched between the belts, and a vacuum device w (5) that attracts the signatures to the belts (3) and lifts them up slightly before being sandwiched between the belts. , one endless belt (3) is driven, and (6) is its driving device. The other endless belt (4) is driven by touching it.

Each of the endless belts (3) and (4) is wound around a series of rollers, and as shown in FIG. There is a vacuum device (5) extending from the bottom to the top and located via its belt (3) to be able to suction the most advanced signatures on the supply conveyor (2).

The feature of the device of the present invention is that the most advanced signatures on the supply conveyor (2) are suitably attracted and lifted by the vacuum device (5).
Each signature is placed vertically on the supply conveyor (2) with its folded side facing down, and is sucked and lifted up with its folded side facing down, and transported to an endless belt (3).

(4) In order to feed the signature sandwiched between the belts into the pocket (1) with the folded side leading, the signature lifted between the belts is moved in the opposite direction to the traveling direction.

That is, in the illustrated example, a folding member (lO) is provided to fold back the signature and send it into the pocket (1) with the folded side facing down.

Therefore, in this device, as clearly shown in FIG. 4, a member (1o) for folding back the lifted signature is provided further in the traveling direction of the end of the endless belt (3). In this embodiment, this member (lO) is formed of a plate whose tip is bent at a right angle, but it goes without saying that it may have another shape and does not need to be a plate at a right angle. The signature lifted between the belts is folded back by its front end hitting the abutment part (11) of the member, and is folded back toward the pocket (1).

To fold the signature (A) that is folded back by the member (lO) to a position that is out of the space between the endless belts (3) and (4).

A roller located at the upper end of the endless belt (3) or ahead of it in the traveling direction, that is, a roller (3) at the upper end of the endless belt (3).
a) or if an independent driven roller is placed above and alongside said roller (3a), the distance (D) between the upper edge of that roller and the abutment (ii) is equal to Vertical dimension (L
), i.e. the same or slightly smaller or slightly larger, so that the fold side of the lower or trailing edge of the signature is moved out of position between the belts (3), (4). Preferably, the interval (0) is slightly smaller than the vertical dimension (L) of the signature, so that the trailing edge of the signature is actively removed by the roller (3a) or a roller that plays the same role. is moved to the specified position.

The signature folded by the folding member (10) moves with the folding side at the beginning, is guided by a suitable guide, and is sent to the pocket (1), preferably as shown in FIG. A pair of endless belts (7), (8) are used which partially contact each other, and these endless belts (7), (8) are driven by a motor (9). Folded back by these endless belts, 1
In the example shown, the signatures to be lowered may be fed into the pocket (1) and stacked approximately horizontally, but preferably they are placed in an upright position at a slight incline, as shown. may be pulled downward from the leading signature in the pocket (1), in this case the lower edge of the roller (7a) at the lower end of the endless belt (7) on the side of the pocket (1) and the support surface of the pocket. The distance between (la) and (d) is the vertical dimension of the signature (L
) is preferably the same as or slightly smaller than
This has the advantage that the upper end of the signature that has descended into the pocket (1) comes into contact with the roller (7a), and that the signature is sent slightly forward so as not to interfere with the signature that descends next.

It goes without saying that the folded signatures may be guided by other arrangements, such as a series of guide rollers.

The device is equipped with a suitable control panel (12) (FIG. 1), which activates the device when the number of signatures stored in the pocket (1) is low. Due to the operation of the device, the signatures on the supply conveyor (2) are sent towards the endless belt (3), and the most advanced signature in contact with it is attracted by the vacuum device (5) and the signatures on the supply conveyor (2) are attracted by the friction with the endless belt (3). It is raised by At this time, as shown in Fig. 5, when the front side of the signature (al) in contact with the belt surface rises, the folded side is at the bottom, so the opposite side, that is, the back side (a3), is on the lower side. Since it is connected to the paper sheet (ao) on the front side on the folding side, it is lifted up together, and no deviation occurs between them.

Therefore, the signature is appropriately raised and raised between its endless belt (3) and its counterpart endless belt (4),
The upper end of the signature, that is, the open side, is the abutment part (1o) of the member (1o).
1), fold back in the opposite direction of the traveling direction, and use the upper end roller (3a) of the endless belt (3) or the roller beyond that to fold the lower end (folding side) of the signature into the endless belt (7) and (8). The paper is sent between the belts (7) and (8), descends, and is sent into the pocket (1) with the folded side at the beginning.

When a suitable amount of signatures is accumulated in the pocket (1), the operation is stopped.

Note that the endless belt (3) may be composed of a plurality of belts, including a perforated belt and other belts, if desired.Also, although the endless belt (3) is folded downward in the above embodiment, it may be folded in another direction, for example, in the horizontal direction. Needless to say, it is okay.

(Effects of the Invention) As described above, according to the present invention, the signatures are attracted and lifted with the folded side down, so that when the front side in contact with the belt surface rises, the back side always rises as well. Therefore, regardless of the paper quality of the signatures or the back pressure applied to the signatures, the signatures can be properly attracted and lifted without wrinkles or shifting, and the signatures can be lifted up while being sandwiched between the belts. It is possible to feed the paper into the folding machine pocket appropriately, that is, with the folded side at the beginning.

[Brief explanation of the drawing]

FIG. 1 is a side view of a signature feeding device according to an example of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a schematic diagram of a part thereof, and FIG. 4 is a member for folding signatures and related thereto. FIG. 5 is a side view showing the state in which signatures are sucked and lifted, FIG. 6 is a side view showing a conventional signature feeding device, and FIG. 7 is a side view showing how the conventional signature feeding device FIG. 3 is a side view showing a state in which the blade is attracted and raised. In the diagram, 1: pocket, 2: supply conveyor, 3゜4:! !
End belt, 5: Vacuum device, 10: Folding member, 11:
Collision section patent applicant: Yamada Machine Industry Co., Ltd.

Claims (1)

[Claims] (1) a supply conveyor that supports a series of signatures in an upright state with the folded side facing down and sends them to a first endless belt described below;
A first endless belt that successively vacuums the most advanced signatures on the supply conveyor and raises the signatures, and a signature that has been slightly lifted by the first endless belt is transferred between the first endless belt and the first endless belt. a second endless belt that is sandwiched and raised; and a member that is located further in the traveling direction of the end of the first endless belt and that folds back the signature in the opposite direction to the traveling direction when the front end of the signature comes into contact with the member; The signatures to be folded back by the member are sent into a pocket for a collating machine, and the front end of the signature comes into contact with the upper edge of the roller located at the upper end of the first endless belt or beyond it in the traveling direction. A signature feeding device in which the distance between the abutting portion of the signature and the signature is approximately the same as the vertical dimension of the signature. (2), the signature folded back by the member is guided between a pair of endless belts, and is received in an upright state within the pocket;
and the distance between the lower edge of the roller at the lower end of the endless belt on the pocket side and the support surface of the pocket is the same as or slightly smaller than the vertical dimension of the signature. Signature feeding device.