JPH0579574B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a binding member removal device for packaging bodies, and more specifically, the present invention relates to a binding member removal device for packaging bodies, and more specifically, it cuts and winds wires binding together compressed cardboard boxes, etc. It concerns a device for unpacking a body.

[Conventional technology]

Collected cardboard boxes and used paper are transported to paper mills for recycling, but in order to improve transportation efficiency and ease of handling, they are compressed and wrapped with wire, resin tape, etc. be united. The cardboard, etc., is put into a pulper or dissolving tank at a paper mill, but in order to prevent stirring in a semi-fluid or fluid state there, it is necessary to remove the binding member from the package beforehand. .

The work of removing the above-mentioned binding members is mainly done by
This is performed immediately before feeding into the pulper, and consists of cutting the binding members and collecting the binding members for separate disposal. Conventionally, workers cut each binding member such as wire with a tool, resulting in extremely low work efficiency. Moreover,
Since the binding members spread around the package and fall, it takes time to pick them up. In addition, the binding members may bounce during cutting or collecting operations, so
There are problems that require constant attention to the work.

By the way, Japanese Utility Model Application No. 61-77307 discloses a presser roller that presses the cut binding member on the opposite side of the package, and a grip that moves back and forth toward the back of the presser roller. ,
A winding and removing device is described which includes a fork-shaped pawl that advances from a direction perpendicular to the direction of advance and retreat of the grip and winds up the binding member located between the presser roller and the grip.

According to this, the table is moved so as to face the position where the package with the binding member cut is placed, the grip advances onto the table, and the binding member inserted between the upper and lower rollers of the presser roller is moved. Pinch the tip and move it back. When the retraction is completed, the upper roller descends to hold down the binding member, maintaining its tension, and the fork-like pawl advances into the tensioned portion, fitting the binding member into the groove at its tip and rotating it. It's getting old. The binding member is pulled from around the package, passed through a presser roller, and wound up. At the start of winding, the grip has released the binding member and is wound around the prongs and retrieved. Thereafter, the lump of the binding member is squeezed out by a removal ring that is displaced in the axial direction around the prongs.

[Problem to be solved by the invention]

In the device that operates as described above, the removal ring for removing the binding member has a cylindrical shape located on the outer periphery of the prongs, so that the inner periphery of the removal ring and the outer periphery of the prongs overlap. If the distance is small, interference with the removal ring that does not rotate when the pronged claw body rotates may generate abnormal noise, and there are disadvantages in that high machining accuracy of the removal ring is required. Note that if the gap is increased and supported separately, the generation of abnormal noise can be suppressed and the machining accuracy can be lowered.
There is a risk that the rolled up binding member may get caught between the ends, causing a problem that the removal work will not be smooth.

The present invention has been made in order to solve the above-mentioned problems, and its purpose is to allow the unpacking operation to be carried out extremely quickly, to pack cut binding members into small pieces, and to collect the wound binding members into small pieces. Not only can the removing member be reliably removed, but also the removing member can rotate together during the rotation of the fork-like claw body, preventing the generation of noise. Avoid working directly in front of the
It is an object of the present invention to provide a binding member removal device for a package that can be mechanically unpacked.

[Means to solve the problem]

The present invention provides a binding member removal method that involves inserting a fork-like claw body into a binding member that ties around the package, winding up the binding member with a winding device, and removing the wound-up binding member from the fork-like claw body. Applies to equipment.

As shown in FIG. 1 and FIG.
The auxiliary frame 2 has an insertion hole 27 through which the prongs 10 pass when the prongs 10 move up and down along the winding support 23 and are rotatably attached thereto.
8 is provided on the winding support 23 or the winding base 21 that supports it. The auxiliary frame 28 has a removal member 29 (see FIG. 7a) for removing the wound binding member 4 from the fork-like claw body 10 at a position corresponding to the lower end of the fork-like claw body 10 in the raised position. Intervened. The removal member 29 includes the claws 10a, 10b of the fork-like claw body 10 (see FIG. 3).
A passing portion 30 is formed to define a space 31 through which the binding member 4 is inserted, and to squeeze the binding member 4 as the forked claw body 10 is displaced. It is designed so that it can be rotated together with 10.

[Effect]

The package 2 is placed in the unpacking position 7, and the fork-like claws 10 of the winding device 6 located on the side thereof are in a raised state. In order to unpack the package 2, use the forked claw body 1.
0 descends and the binding member 4 binding the package 2
inserted into. The binding member 4 is cut separately or cut by rotation of the fork-like claw body 10, and the binding member 4 is wound up by the rotation of the fork-like claw body 10. At this time, the removal member 2 interposed on the auxiliary frame 28 provided on the winding base 21 or the winding support 23
Although the claws 10a, 10b, . .

The prongs 10 rise and the unpacked items are transferred.
The fork-like claw body 10 rises to a height that does not interfere with the carrying of the package 2, but during the rise, the fork-like claw body 10 passes through the insertion hole 27 of the auxiliary frame 28. There is a removal member 29 near the insertion hole 27, and the claws 10a, 10b of the fork-shaped claw body 10 are located in the space 31 defined by the passing portion 30 of the removal member 29.
... is inserted, and the binding member 4 wound around the fork-like claw body 10 is squeezed out as the fork-like claw body 10 is displaced. The binding member 4 falls, and the fork-like claw body 10 waits without the binding member 4 attached, and the next package 2 is ready to be unpacked.

〔Effect of the invention〕

According to the present invention, the binding member such as a wire that binds the package is wound up, and the binding member that is wound up in conjunction with the raising and lowering of the fork-like claw body is moved as the fork-like claw body is displaced. It can be removed by a removal member having a transition portion. Therefore, when the packages are unpacked one after another, the action of inserting the prongs into the binding member can be quickly performed, and the operator does not have to manually remove the rolled-up binding member. Unpacking work can proceed efficiently. The binding member is small and has low bulk, making it extremely easy to transport and dispose of it. Further, the removal member can rotate together with the pronged claw body, suppressing the generation of noise, and has the advantage that high processing accuracy is not required.

〔Example〕

The present invention will be explained in detail below based on examples.

FIG. 1 is an overall plan view of an unpacking device 1 including a binding member removing device, and a conveyor 3 for transporting packages 2 such as crushed cardboard boxes and compressed waste paper, as shown in FIG. Binding member 4 such as wire or resin tape that ties around the package 2
a cutting device 5 for cutting, and a binding member 4
It is equipped with a winding device 6 for winding up. It should be noted that the package 2 is bundled in order to increase the transportation efficiency during truck transportation and to make it easy to handle.

The conveyor 3 is a pan conveyor or the like that moves the package 2 to the unpacking position 7 and carries out the unpacked item. The above-mentioned cutting device 5 is installed along the conveying direction 8 of the package 2 on the conveyor 3 in order to cut the binding member 4 binding the package 2 on the conveyor 3 . It has a cutting blade 9 that cuts the binding member 4 by advancing and retracting in a direction intersecting the conveying direction 8, for example, in a right angle direction. Further, the winding device 6 is arranged to face the cutting device 5 with the conveyor 3 interposed therebetween, and includes a forked claw body 10 that is inserted into the binding member 4 and rotates. In order to facilitate unpacking operations such as cutting and winding the binding member 4 in each of these devices, the package 2 is placed on the conveyor 3 with the binding member 4 in a horizontal position. .

The fork-like claw body 10 provided on the winding device 6 can be raised or lowered, and the claws constituting the fork-like claw body 10 are inserted between the package 2 and the binding member 4, and the fork-like claw body 10 is When the body 10 is rotated, the binding member 4 is wound up by the rotational force.
For this purpose, as shown in FIG. 3, the forked claw body 10 has two or more claws 10a, 10b, for example, rod-shaped claws with pointed tips, extending in the vertical direction.
Consists of...

As shown in FIG. 4, an elevating cylinder 11 for elevating the fork-shaped claw body 10 to move away from or approach the package 2, and a rotary motor 12 for winding up the binding member 4 are provided. The actuator for this is, for example, a hydraulic type, and is automatically operated by sequence control of an electromagnetic switching valve or the like. The cutting blade 9 of the cutting device 5 is approximately at the same height as the package 2, and is capable of cutting the binding member 4 wound in multiple layers up and down at once. A cutting cylinder 13 for moving the cutting blade 9 forward and backward with respect to the package 2 is provided.
is controlled to advance when the package 2 reaches the unpacking position.

In addition to the above-mentioned devices, in this example, a pushing device 14 for pressing the package 2 onto the winding device 6
are installed on the left and right sides of the cutting device 5, as shown in FIG. This is provided with a push pad 15 that is approximately the same height as the package 2, and is moved by a push cylinder 16 or the like. On the other hand, a pushing device 14 is provided on the winding device 6 side.
A guide body 18 with a number of rollers 17, 17 that comes into contact with the pressed package 2 is mounted as shown in FIG.

This is done by fitting one binding member 4 between any vertically adjacent rollers 17, 17 shown in FIG.
After the binding member 4 is cut and wound up by the fork-shaped claw body 10, the binding member 4 is prevented from hanging down, and the binding members 4 are prevented from intersecting with each other by the fork-shaped claw body 10. It is. That is, the binding member 4 on the side facing the guide body 18 is supported substantially horizontally by each roller 17, and winding becomes extremely smooth. A turntable 19 (see FIG. 1) is installed on the downstream side of the conveyor 3, and the unpacked items are placed thereon and sorted and delivered to one of several pulpers (not shown). On the other hand, the wound-up binding member 4 is attached to the forked claw body 1.
0 as will be described later, and separately transferred to a predetermined position from the chute 20 directly below (see FIG. 4).

The structure of the winding device 6 will be described in more detail below. As shown in FIG. 4, by expanding and contracting the lifting cylinder 1 attached to the winding base 21, the lifting carriage 22 is moved to the winding post 23 which is erected on the winding base 21.
It is structured so that it can be moved along the A bearing box 24 that enables and supports the rotation of the fork-like pawl body 10 is attached to the lifting cart 22 via brackets 25 and 26, and the fork-like pawl body 10 is connected to the rotary motor 1.
It is hanging down to 2.

By the way, the fork-like claw body 10 moves up and down along the winding support 23 mentioned above, and the fork-like claw body 10 itself is rotatably attached.
An auxiliary frame 28 is provided on the winding base 21 that supports the winding column 23, and has an insertion hole 27 through which the winding support 27 passes when the winding support 23 moves up and down. The auxiliary frame 28 is provided with a removal member 29 for removing the wound binding member 4 from the fork-shaped claw body 10 at a position corresponding to the lower end of the fork-shaped claw body 10 in the raised position.

This removal member 29 is, for example, a rotating ring equipped with a transition portion 30 as shown in FIGS. 7a and 7b.
A space 31 is defined between each of the transition parts 30, through which the claws 10a, 10b, . . . of the pronged claw body 10 are inserted. The auxiliary frame 28 in which the above-mentioned insertion hole 22 is formed is provided with a ring attachment part 32 as shown in FIG. has been done.

Note that the guide body 18 equipped with the roller 17 described above
are arranged so as to face the package 2 together with the fork-like claw body 10 except for the position where the fork-like claw body 10 moves up and down. Therefore, the planar arrangement is as shown in FIG. 9, and winding is performed by the fork-like claws 10 with the roller 17 in contact with the package 2, and at that time, the vertical position of the binding member 4 is held,
Moreover, separation from the package 2 is prevented.

By the way, lifting cylinder 11, cutting cylinder 1
3 and the push cylinder 16 are started and stopped when the moving parts of the package 2 and each device are moved to a predetermined position by a limit switch or pressure switch (not shown), and when there is an abnormal increase in pressure in the hydraulic circuit. The system automatically opens and closes each electromagnetic switching valve by detecting the following.

According to the configuration described above, the binding member 4 of the package 2 is cut and wound up by operating as follows, and the wound binding member 4 is finally attached to the forked claw body 1.
It can be removed from 0.

The package 2, which has been transported by a truck or the like, is placed on the conveyor 3 while being bound by the binding member 4. At this time, the package 2 is placed in such a position that its binding member 4 is horizontal. Unpacking position 7
The cutting blade 9 of the cutting device 5 and the pushing part 15 of the pushing device 14 are retracted from above the conveyor 3, and the conveyor 3 is driven with the prongs 10 of the winding device 6 raised. When the package 2 reaches the unpacking position 7, the limit switch is activated.
The transport conveyor 3 is stopped.

The pushing cylinder 16 of the pushing device 14 is extended,
When the pushing pad 15 presses the package 2 in the direction of the winding device 6 and the package 2 comes into contact with the roller 17 of the guide 18, the extension of the pushing cylinder 16 is stopped. The elevating cylinder 11 of the winding device 6 is contracted and the fork-like claw body 10 is lowered and inserted into the binding member 4, and when the fork-like claw body 10 is lowered to a desired position, it is stopped.

Next, the cutting cylinder 13 of the cutting device 5 is extended, and the cutting blade 9 advances to cut the binding member 4.
Although the binding member 4 falls apart around the package 2, it is supported by the roller 17 of the guide body 18 on the winding device 6 side, and the crossing of the binding member 4 during winding by the fork-shaped claw body 10 is avoided. . Cutting cylinder 1
The extension of the cutting blade 9 is stopped, and the cutting blade 9 stops advancing.
When the pushing pad 15 is retracted by the contraction of the pushing cylinder 16, the cutting blade 9 is also retreated by the contraction of the cutting cylinder 13.

Simultaneously with the retreat of the cutting blade 9, the rotary motor 12 of the winding device 6 is driven, and the fork-like claw body 10 is rotated at high speed for a predetermined fixed time, and then the winding is stopped. Since the binding member 4 is wound up while being guided by the roller 17 of the guide body 18, the binding member 4
This prevents them from bouncing or getting tangled.

Finally, the lifting cylinder 11 is extended and the fork-like claw body 10 is raised. At this time, the fork-shaped claw body 10 passes through the insertion hole 27 of the auxiliary frame 28. There is a removal member 29 at the lower part of the insertion intersection 27, and the binding member 4 wound around the fork-like claw body 10 is squeezed out by the passing portion 30 and the surrounding ring surface 34 as the fork-like claw body 10 rises. , it is rolled up and removed without making a big noise. The binding member 4 falls, and the fork-like claw body 10 stands by without the binding member 4 attached. Note that since the removal member 29 is rotatable while inserting each claw of the fork-like claw body 10, it rotates together while the fork-like claw body 10 is rotating, and stops when the fork-like claw body 10 moves up and down. ing. The rolled mass falls into a chute 20 and is transported to a disposal site.

FIG. 10 shows an example in which the transfer portion is a flat ironing board 37 installed vertically. This ironing board 37 forms small overhangs 38 and 33 at the bottom,
It is manufactured separately from the retaining ring 39. and,
A retaining ring 39 is integrated by welding or the like, leaving a space above the projecting portion 38.

This removal member is fitted between the claws of the fork-like claw body 10 and rotates with the fork-like claw body 10 as in the case of FIGS. Insertion hole 2 of auxiliary frame 28
It must be rotatably attached to 7. A retaining ring 40 supporting the removal member 27 for this purpose
However, as shown in Figure 11, it has a two-split structure, and the first
As shown in Figure 2, the inner flange 41 is connected to the above-mentioned projecting part
8 and the retaining ring 34. The removal member 29 is inserted into the auxiliary frame 28 by attaching the retaining ring 40 to the auxiliary frame 28 with bolts or the like. In addition, auxiliary frame 2
It goes without saying that 8 can be integrally installed on the winding support 23 or the winding base 21, or can be constructed as a part of them.

Incidentally, the cross-sectional shape of the claw itself of the forked claw body 10 described above is not limited to a semicircle, but can be arbitrarily selected such as circular, rectangular, or triangular. Further, the shape of the tip of the claw may be a pointed shape that is sloped on the outer surface, sloped on the inner surface, or even sloped on both sides. In any case, a shape is selected that allows the prongs to be easily inserted into the binding member.

As can be seen from the above description, the binding members bound by the package are wound up around the fork-like claws and assembled into a low-volume product. Furthermore, the cutting device and the winding device are located at positions where they do not interfere with the conveyance of the package, so that the arrival of the package and the unpacking of the unpacked items are not hindered, and the unpacking operation can proceed smoothly.
The binding members wound around the fork-like claws are then squeezed out with a removal member while suppressing noise as the fork-like claws rise, and the binding members of the packages brought in one after another are successively removed. can do. Furthermore, even if the worker wants to work directly in front of the package, the package can be unpacked continuously mechanically, ensuring worker safety and improving work efficiency.

[Brief explanation of drawings]

FIG. 1 is a plan view of an unpacking device including a binding member removing device of the present invention, FIG. 2 is a perspective view of a package bound with a binding member, FIG. 3 is a schematic diagram of a pronged claw body, and FIG. FIG. 5 is a front view of the unpacking device, FIG. 5 is a view taken along the - line in FIG.
Figures 7a and b are plan views of a rotating ring that is an example of the removal member, Figure 8 is a cross-sectional view of the fork-like claws fitted into the removal member, and Figure 9 is a binding member guided by a roller. FIG. 10 is a perspective view of a removal member equipped with a vertical scraping plate, and FIG. 11 is a perspective view of a retaining ring with a split structure. , FIG. 12 is a cross-sectional view of the removal member supported by a two-split retaining ring. 2... Packing body, 4... Binding member, 6... Winding device, 10... Forked claw body, 10a, 10b... Claw,
21... Winding base, 23... Winding support, 27...
Insertion hole, 28...Auxiliary frame, 29...Removal member, 30...Transfer part, 31...Space, 37...Igoring board (transfer part).

Claims (1)

[Scope of Claims] 1. Insert the fork-shaped claw body into a binding member that ties around the package, wind up the binding member with a winding device, and remove the wound binding member from the fork-like claw body. The binding member removing device is provided with a fork-shaped pawl for winding up the binding member, which is attached to be able to move up and down and rotatably along a winding post, and an insertion hole is formed through which the fork-like pawl passes when moving up and down. An auxiliary frame is provided on the take-up support or a take-up base that supports the take-up support, and the support frame includes a take-up support frame at a position corresponding to the lower end of the forked claw in the raised position. A removal member is interposed for removing the tied binding member from the fork-like claw body, and the removal member defines a space through which each claw of the fork-like claw body is inserted, and that the removal member defines a space through which each claw of the fork-like claw body is inserted, and that the removal member removes the binding member from the fork-like claw body. A passing portion is formed for squeezing the binding member,
A binding member removal device for a package, characterized in that the removal member can be rotated together with the fork-shaped claw body via the transfer portion.