JPH0120363Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for stacking and bundling sheet materials. 2. Description of the Related Art Sheet-like or plate-like objects such as cardboard boxes and books, that is, sheet-like objects, are bundled into predetermined numbers for convenient handling and storage. However, in the past, in this type of bundling, the stacking of sheet materials was done manually, which required manpower, and also required a place to temporarily pool the sheet materials that flowed in at regular intervals. . Furthermore, the automatic stacking and bundling system required a special stacking device such as a relay conveyor, resulting in a large-scale device that required a large amount of space.

An object of the present invention is to provide a sheet binding device that can automatically stack and bundle sheet items with an extremely simple and compact configuration.

The feature of the sheet binding device according to the present invention is that it is stopped at a binding position by a stopper and binds the stacked sheets at that position.Hereinafter, embodiments of the present invention will be explained with reference to the drawings. do.

As shown in FIG. 1, in this embodiment, a pair of binding machines 1 are arranged side by side, and an input conveyor 10 is provided along each binding machine 1. This binding machine has an arm 2 that pivots up and down, a press device 3 that presses the sheet-like material from above, a binding mechanism 5 including a string presser 4, and a string stretched vertically between the string presser and the tip of the arm. The hook 6 includes a hook 6, as shown in FIG.
It is configured to be supported by a drive device 7 such as an endless belt and driven to reciprocate along the carry-in conveyor 10. 8 is a series of conveyance rollers provided following the conveyor 10. A stopper 11 for stopping a sheet-like object in a predetermined position is installed along the carry-in conveyor 10 or near an extension line thereof, and a stopper 11 for stopping the sheet-like object in a predetermined position is installed at a position relatively close to the entrance of the carry-in conveyor 10 between the sheet-like object and the conveyor 10. A pinch roller 12 for pinching objects is provided. In order to suitably perform bundling, the bundling mechanism 5 is provided near the rear end B of the sheet material stopped by the stopper 11, and therefore,
As clearly shown in FIG. 4, the conveying surface of the conveyor 10 is the same surface at the front position 10a and the rear position 10b of the rear end B of the sheet-like material A. The reason why the front position 10a and the rear position 10b of the rear end of the sheet-like object are made to be on the same plane is that if they are not on the same plane, for example, if there is a step or an angle difference (bend part) at that position, the sheet-like material may be fed. The coming sheet-like object collides with the bundling mechanism, and the sheet-like object cannot be sent to the bundling position.
Therefore, they cannot be stacked at the bundling position as described below.

This bundling device further includes a push-up device 13 that temporarily pushes up the workpieces stopped at the bundling position, and a sensing device 14 that senses the carried-in workpieces and operates the push-up device 13. This lifting device 13 is movable up and down and is preferably operated by a cylinder device 15 as shown in FIG.
Other mechanisms may be used, such as a rack and pinion. The sensing device 14 senses the front end of the workpiece and operates the push-up device 13 based on the detection signal, and is preferably a limit switch as shown in the figure, but an appropriate device such as a phototube or a proximity switch may be used. be able to. In addition, the carrying-in conveyor 10 is as shown in the figure.
A belt conveyor is preferred, but other types of conveyors are also possible. Further, it is preferable that the stopper 11 is configured to be movable forward and backward using a cylinder device or the like. The pinch roller 12 presses the workpiece on the conveyor 10 while rotating, so that the workpiece is conveyed without slipping against the surface of the conveyor.

When this binding device is in operation, a sheet-like workpiece A is carried in by the carry-in conveyor 10, and when it reaches the position of or in front of the strings that have been stretched vertically, the drive device 7 is activated and the workpieces are tied together. 6 hooks and pulls out the string and moves to a position beyond the stopper 11 to some extent, and following the movement of the claw 6, the workpiece is sent. When the workpiece reaches a predetermined position in front of the push-up device 13, the sensing device 14 detects the arrival of the workpiece.
is sensed, and the push-up device 13 is lowered and retracted. Next, as shown in FIG. 6, the workpiece passes through the position of the lifting device, comes into contact with the stopper 11, and is placed in the binding position. The lifting device 13 is installed at the rear of the workpiece thus stopped at a predetermined position, preferably under the rear end, and maintains the raised position until the next workpiece arrives, as shown in FIG. Therefore, the rear part of the workpiece in a predetermined position is lifted and placed in an inclined state. The next workpiece is brought in and located at the planned position, as shown by the imaginary line in Figure 7.
When the front end of the next workpiece is at or just before the rear end of the previous workpiece, the sensing device 14
is activated to lower the push-up device 13, and the workpiece is inserted under the previous workpiece as shown in FIG. The workpiece is fed while being pinched by the conveyor 10 and the pinch rollers 12, advances while pushing up the previous workpiece, and is stopped by the stopper 11. When the workpiece hits the stopper and stops, the sensing device 14 causes the push-up device 13 to rise again, resulting in the state shown in FIG. 4. By repeating such operations, the works are stacked at the binding position. During this time, the claw 6 returns to its original position. When a predetermined number of works are stacked at the binding position, the press device 3 presses the works, then the arm 2 descends and the binding mechanism 5 forms a knot, and as the string is cut, a new string end is pressed by the string presser 4.
The binding arm 2 rises and stops at the stopper 11.
moves backward, and the bound workpieces are sent out by the conveyor 10 and transport rollers 8, returning to the initial state.

Although the rear part of the workpiece is pushed up in this embodiment, it is also possible to push up both the front and rear parts near the stopper, which makes the mechanism more complicated, but allows the workpiece to be fed from below with less resistance. I can do it.

In a preferred form, the inlet conveyor 10, stopper 11, etc. are constructed as a single assembly;
Four wheels 1 provided at the bottom of the assembly
6 is placed on the rail 17, and a pair of such assemblies are placed opposite each other so that the spacing between them can be adjusted.

As described above, according to the present invention, the conveyor includes a pinch roller, a push-up device, and a sensing device, and the conveying surface of the conveyor is the same surface at the front and back positions of the rear end of the sheet-like objects stopped at the bundling position. Since a bundling mechanism is provided near the rear end of the sheets, the sheets can be sent to a bundling position where they can be directly stacked and tied. That is, with the bundling device of the present invention, the sheet-like objects can be stopped at a bundling position with a stopper, stacked at the bundling position, and tied at the stacked position. Therefore, the present invention does not require a stacking device or relay conveyor separate from the bundling device, resulting in a compact configuration and less space occupancy.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an example of the binding device according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is an end view thereof.
4 is a cross-sectional view taken along line A-A in FIG. 1, FIG. 5 is a partially cutaway plan view of a portion of the apparatus in FIG. 1, and FIGS. 6, 7, and 8 are respectively FIG. 3 is a side view showing the working stages of the binding device according to the present invention. In the figure, 8, 10... Conveyor, 11... Stopper, 12... Pinch roller, 13... Push-up device,
14... Sensing device, 15... Cylinder device.

Claims (1)

[Claims for Utility Model Registration] (1) Includes a binding machine for binding stacked sheet-like materials, and a conveyor for carrying the sheet-like materials into the binding position of the binding machine and carrying out the bundled sheet-like materials, The conveying surface is the same plane in front and rear positions of the rear end of the sheet material stopped at the binding position, and the binding mechanism of the binding machine is provided near the rear end of the sheet material, and furthermore, the conveyance surface is the same surface in front and behind the rear end of the sheet material stopped at the binding position, and the binding mechanism of the binding machine is provided near the rear end of the sheet material. a stopper that abuts the front edge of the sheet-like object to stop the sheet-like object at the bundling position; and a stopper for inserting the sheet-like object between the sheet-like object stopped by the stopper and the conveying surface of the conveyor. a pinch roller which is located near the rear of the rear end of the stopped sheet-like object and feeds the sheet-like object by sandwiching the sheet-like object between it and the conveyance surface of the conveyor; A bundling device for sheet-like objects, including a vertically movable push-up device that pushes up and descends when the next sheet-like object arrives, and a sensing device that senses the carried-in sheet-like object and operates the push-up device. (2) Utility Model Registration The device according to claim 1, wherein the push-up device is moved up and down by a cylinder device.