JPH0335173B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an improvement of an automatic binding device that tightens and bundles objects to be bound before wrapping a binding tape around the objects and binding the objects. It is related to.

Conventionally, automatic bundling devices have been developed, for example, by
- As disclosed in Publication No. 1612, a device equipped with a bundling device that wraps a binding tape around objects to be bound and ties the objects while tightening them is known. It is being In this conventional system, a chain conveyor serving as a conveyance means is provided with buckets as loading parts for objects to be bound at regular intervals in the direction of conveyance, and objects to be bound placed on the buckets are placed on the chain conveyor in the direction of conveyance. A bundling device installed in the middle is used to tighten and bundle the bundled items, and then the bundled items are bundled. Because of this configuration, it has the disadvantage that it extends long in the conveying direction, making it difficult to organize it compactly.

The present invention has been made in view of the drawbacks of the above-mentioned prior art, and its purpose is to provide an automatic bundling device that can be made compact. , a rotating disk is provided with a mounting section, and the mounting section is rotated around the center of rotation of the rotating disk.

Embodiments of the automatic bundling device according to the present invention will be described below based on the drawings.

In FIG. 1, 1 is a machine frame, 2 is a leg thereof, and on the upper part of the machine frame 1, a binding means 3 and a bundling means 4 are installed at a predetermined interval in the longitudinal direction of the machine frame 1. A belt conveyor 5 is installed at the bottom of the machine frame 1. The binding means 3 has a frame 6, which is fixed to the machine frame 1. This frame 6 has opposing plate portions that face each other at intervals in the width direction of the machine frame 1, and the reference numeral 3A is written on the opposing plate portion on the front side. A cylinder device 7 is attached to the rear portion 6B of the frame 6, and this cylinder device 7 has a function of driving the binding arm 8 and the rewinding mechanism 9. The rod 10 of the cylinder device 7 is provided with a rack portion 10A in its longitudinal direction, and the frame 6 is provided with a pinion 11 that meshes with the rack portion 10A.
The rack portion 10A and the pinion 11 constitute a part of the rewinding mechanism 9.

Guide holes are provided in the opposing plate portion of the frame 6 at predetermined intervals in the vertical direction, and the guide holes on the front side are denoted by numerals 12 and 13. These guide holes 12, 13
is configured to extend long in the reciprocating direction of the rod 10. The binding arm 8 is installed between opposing plate parts, and roller insertion holes 14 and 15 are provided in its base 8A. A roller 16 is inserted through the roller insertion hole 14 , and this roller 16 is fitted into the guide hole 12 . The roller 16 is provided with a locking shaft 17 , one end of a spring 18 is locked to the locking shaft 17 , and the other end of the spring 18 is locked to a locking pin 19 . At the rear end of the base 8A of the binding arm 8,
A shaft 19 is attached, and a roller 2 is mounted on this shaft 19.
0 is rotatably supported and fitted into the guide hole 13. The roller 16 and the roller 20 are configured to reciprocate along the guide holes 12 and 13 while rotating. A roller support member 21 is provided at the tip of the rod 10, and a shaft 22 is provided on this roller support member 21. A roller 23 is rotatably supported on this shaft 22, and an insertion hole 15 is provided on the shaft 22.
is inserted into. The binding arm 8 is erected by the action of a spring 18 when the rod 10 moves forward, and the insertion holes 14 and 15 are formed in the binding arm 8.
from the tilted position shown in FIG. 1 to the upright position shown in FIG. 2, the rollers 16, 2
3 is sized to allow displacement in the longitudinal direction of its base 8A.

The binding means 3 has a reel mounting plate 24, a reel 25 is provided on the reel mounting plate 24, and a binding tape 26 is attached to the reel 25. The binding tape 26 is configured to extend toward the tape holding device 27 via the free end 8B of the binding arm 8. This tape holding device 2
7 is fixed to the support plate 28 and has the function of holding the cut end of the binding tape, and its configuration is almost the same as that of the conventional one, so a detailed explanation thereof will be omitted. . The free end portion 8B of the binding arm 8 is provided with guide rollers 28 and 29 and a binding tape crimping/cutting mechanism 30, and the binding tape crimping/cutting mechanism 30 cooperates with the tape holding device 27. It has a function of crimping and cutting the winding ends of the binding tape 26 wound around objects to be bound, which will be described later.Since its structure is almost the same as that of the conventional one, the schematic structure will be shown here. stay.
A main roller 31 and a follower roller 32 are provided in the middle of the guide path of the binding tape 26.
has a larger diameter than the slave roller 32, a sprocket 33 is provided coaxially with the main roller 31, and a sprocket 34 is provided coaxially with the pinion 11.
A chain 35 is provided between the sprockets 33 and 34 so that the rotation of the pinion 11 is transmitted to the main roller 31. The main roller 31 and the subordinate roller 32 move the binding tape 26 backward in the direction of arrow A and
It has the function of applying tension to the reel 25.
A sprocket 36 is provided on the reel 25, and a chain 37 is placed over the reel 25 so that the rotation of the sprocket 33 is transmitted to the reel 25.
The binding tape 26 that has been moved backward by the main roller 31 and the follower roller 32 is wound up. Here, a one-way clutch (not shown) is used so that the rotation of the pinion 11 is transmitted to the main roller 31 when the rod 10 moves forward, and the rotation of the pinion 11 is not transmitted when the rod 10 moves forward. It is interposed between the main roller 31 and the pinion 33, and the main roller 31 and the follower roller 3
The winding force generated by the reel 2 is larger than the winding force of the reel 25. The main roller 31 and the follower roller 32 are provided to maintain the tension of the binding tape 26 at a predetermined value regardless of its diameter. The guide roller 29 is provided to prevent the binding tape, which has been retreated by the slave roller 32, from loosening and sticking to each other between the main roller 31 and the binding tape 26. It has a function of keeping the portion extending from 29 toward the tape holding device 27 substantially horizontal.

Here, the bundling means 4 is provided on a rotary disk 38, and the rotary disk 38 is attached to a rotary shaft 39 so as to rotate together with the rotary shaft 39, and 40 is a bearing thereof. This rotary disk 38 is provided with object placement parts 41, 42, and 43 at 120-degree symmetrical positions in the circumferential direction, and in FIG. 1, the position where the object placement part 41 is present is Placement station for objects to be bound, object placement section 4 for objects to be bound
The position where 2 exists is the binding station for the objects to be bound, the position where the object to be bound section 43 is located is the dropping station for the objects to be bound, and 44 indicates the objects to be bound. The rotary disk 38 is rotated in the direction of arrow B in FIG.
6 is its cam surface.

A shaft 47 is installed on the side surface of the rotary disk 38 at a symmetrical position of 120 degrees. This shaft 47 has a bundling means 4.
A drive plate 48, which constitutes a part of the drive plate 48, is rotatably provided. The drive plate 48 has a roller 49 and a toothed portion 50, is biased in the direction shown by a spring 51, and has a stopper pin 51'.
Rotation is stopped by. The roller 49 is configured to come into sliding contact with the cam surface 46 while the rotary disk 38 rotates. A gear 5 is provided on the side of the rotary disk 38.
2, this gear 52 is configured to rotate around a shaft 53, and a bundling member 54 is provided so as to rotate integrally with this gear 52. Here,
This bundling member 54 is roughly composed of an arc-shaped bundling plate 55 and an elastic bundling rope 56.
is the object to be bound 44 placed on the object to be bound section 41
During the process of the objects to be bound 44 from the loading station to the binding station, the drive plate 51 is rotated with its roller 49 in sliding contact with the cam surface 46, and this drive plate 48 The rotation is transmitted to the gear 52 to rotate the bundling member 54, and the objects to be bound 44 are bundled while being tightened from the loading station to the bundling station, and in this bundling station, the cylinder device 7 is driven, and as shown in FIG. 2, the binding arm 8 is erected and moves forward along the guide holes 12, 13 from the starting ends 12A, 13A on the waiting position side toward the terminal ends 12B, 12B on the binding position side. As the binding tape 26 is wound around the object 44, the guide holes 12, 13
Here, the lengths in the longitudinal direction are the same, and the starting end 12A on the waiting position side is set so that the binding arm 8 is in a tilted state in the waiting position.
is located closer to the bundling means 4 than the starting end 13A on the waiting position side, and the terminal end 13B on the bundling position side
After the binding tape 26 of the object to be bound 44 is wound, the binding arm 8 is used to press and cut the wound end portion of the binding tape 26 of the object to be bound 44.
It is arranged to be located on the side farther from the bundling means 4 than the binding position side terminal end 12B so that it is in a tilted state. After the objects 44 are bound by the binding means 3, they are released between the binding station and the falling station.The objects 44 that have fallen at the falling station are caught by the belt conveyor 5. , and are to be transported.

Here, a pasting brush 57 is provided on the support plate 28' so as to face the winding end of the binding tape 26 wound around the object 44.
7 is designed to improve the appearance of the bound objects by attaching the winding ends to the objects to be bound 44, and the spring 51 and stopper pin 51' are adjusted while the rotary disk 38 is rotating. It has a function of preventing the bundle member 54 and drive plate 50 from swinging.

The operation of this embodiment configured in this way will be described next. When the rotary disk 38 rotates, the cam 45 also rotates together. As the cam 45 rotates, the roller 49 of the drive plate 48 is guided into contact with the cam surface 46 . In FIG. 1, objects to be bound 44 are placed on an object to be bound portion 41 at an object to be bound station. In this state, the rollers 49 of the drive plate 48 are not in contact with the cam surface 46 of the cam 45, so the arc-shaped bundling plate 55 is in an upright state, and the objects 44 to be bound are placed on the object placement section 41. be able to. At this time, the binding arm 8 is in the state shown in FIG. 1, and the binding tape 26 is pulled out approximately horizontally across the binding station between the tape holding device 27 and the roller 29 provided at the tip of the binding arm 8. ing. When the rotary disk 38 rotates in the direction of arrow B, the drive plate 4
The roller 49 provided on the cam surface 46 comes into contact with and is guided by the cam surface 46, and the drive plate 48 is rotated so that its teeth 50 and the gear 52 provided on the swing shaft of the arc-shaped bundle plate 55 are rotated. Due to the engagement, the arc-shaped bundle plate 55
rotates in a direction approaching the object to be bound portion 41,
The objects 44 to be bound are wound and bound by a binding rope 56 and moved to a binding station. Then, the binding tape 26, which is pulled out substantially horizontally across the binding station, is pushed. At the same time, the binding arm 8 is attached to the rod 1 of the cylinder device 7.
0 pushes it toward the binding station. Due to this movement of the binding arm 8, the binding arm 8 is attached to the spring 1.
As the elastic force of the spring 18 increases, the binding arm 8 is elastically pulled in the upright direction by the spring 18.
Standing up becomes faster. When the rollers 16 and 20 provided on the binding arm 8 reach the binding position side terminal ends 12B and 13B of the guide holes 12 and 13, the binding arm 8 is moved by the spring 18 due to the positional difference between the two terminal ends.
is tilted against the elastic force of In this manner, the binding arm 8 first moves in the upright direction and then tilts during binding. By the combination of the movement of the binding arm 8 and the rotational movement of the rotary disk 38,
The binding tape 26 is wound around the object to be bound 44 and bound at a binding station. When the rotary disk 38 further rotates after binding at the binding station in this way, the abutment guide between the roller 49 of the drive plate 48 and the cam surface 46 is released, and the arc-shaped binding plate 55 moves to the object placement area. 41, and the bundled objects 44 are released from being held in a bundle at the falling station. As a result, the objects 44 to be bound fall onto the belt conveyor 5 provided at the bottom and are carried out. During this time, the binding arm 8 is moved backward by the rod 10, and the binding tape 26 whose cut end is held by the tape holding device 27 is pulled out. ,1
The tape is held in a tilted state due to the positional difference 3B, and the tape becomes approximately horizontal.

Although the embodiments have been described above, the present invention is not limited thereto and includes the following.

(1) In the embodiment, the binding tape 26 between the guide roller 29 and the tape holding device 27 is tilted substantially upward from the horizontal.
The starting end 12A on the standby position side is moved closer to the rear part 6B side than the illustrated position, and the binding arm 8 is further tilted, and the tape holding device 2 is moved from the guide roller 29.
It is also possible to adopt a configuration in which the binding tapes 26 up to 7 are inclined substantially downward from the horizontal.

(2) In the embodiment, a one-way clutch is provided between the main roller 31 and the sprocket 33 so that the rotation of the sprocket 33 is not transmitted to the main roller 31 and the sprocket 36 during the backward movement of the rod 10. However, the main roller 31 and the follower roller 32 may be separated from each other during the backward movement of the rod 10.

The effects of the above embodiments are as follows.

(1) Since the binding arm 8 is in a tilted state in the waiting position and the binding tape 26 is stretched approximately horizontally, the binding tape 2 is attached to the object 44 to be bound.
When winding 6, the winding resistance is reduced, and it is possible to prevent the binding tape from meandering during winding.

(2) Since the binding tape is rewound using the main roller 31 and the slave roller 32 provided in the middle of the guide path of the binding tape, regardless of the diameter of the binding tape 26,
The amount of unwinding of the binding tape 26 can be made constant.

As detailed above, according to the present invention, the rotary disk is provided with an object placement section, and a bundling member is rotatably provided facing the object placement section, so that the rotation disk rotates. Between the placing station and the binding station, the bundling member rotates in a direction approaching the object placement section, and between the bundling station and the drop station, the bundling member rotates the objects. Since a cam mechanism for rotating in a direction away from the placement part is provided, binding using a rotary disk becomes possible, and the automatic binding device can be made compact.

[Brief explanation of the drawing]

FIG. 1 is a front view of an automatic bundling device according to the present invention;
FIG. 2 is an explanatory diagram of the operation of the automatic bundling device according to the present invention. 4...Bundling station, 27...Tape holding device, 30...Crimping/cutting mechanism, 38...Rotary disk, 41...Bundled object placement section, 44...Bundled objects, 54...Bundling Element.

Claims (1)

[Claims] 1. An object placement section for placing objects to be bound is fixed on the outer periphery of a rotary disk, and an arc-shaped bundling plate is rotatably provided on the rotation disk facing the object placement section. An expandable and retractable bundling member is stretched between the arcs of the arc-shaped bundling plate, and when the rotary disk rotates, the stuff to be bound is placed from the loading station where the stuff to be bound is placed in the object placement section. The arc-shaped bundling plate rotates in a direction approaching the object placement section until reaching a bundling station, which is a position for bundling the objects, and
The arc-shaped bundling plate rotates in a direction away from the bound object placement section while the bound object placement section reaches a drop station where the bound objects are dropped from the binding station. An automatic binding device characterized by having a mechanism for.