JPH0146367B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for longitudinally binding sheet-like materials such as laminated long steel plates and other objects of similar shape using straps such as steel strips. .

(Prior art) To bind objects of this type in the horizontal direction,
Since the lateral dimensions are generally small and there are few dimensional differences between objects to be bound, it is relatively easy to use.As an automatic tying device, a chute is placed around the cross section of the objects to be bound, and the strap is fed through to attach the tip. A method is used in which the latched strap is pulled back and released inward from the chute, and then tightened around the object to seal it.

(Problem to be solved by the invention) However, the maximum length of the objects to be bound in the previous example is 10
Therefore, if a longitudinal binding device were to be constructed according to the above method, the chute would be long and complicated, and handling of the objects to be bound would be difficult.Moreover, with this configuration, it would be difficult to handle the objects to be bound. Since the strap must be sent out over a wide range of chute corresponding to the maximum length and then pulled back, automation is impossible due to the large amount of pulling back and various technical difficulties and time losses associated with this. It had been.

(Means for Solving the Problems) The present invention has been made in order to provide solutions to the above-mentioned problems regarding longitudinal binding of objects to be bound.
Pre-draping of straps (PRE-DRAPE preliminary loose winding) is performed by effectively utilizing the conveyance of objects to be bound. In order to make this possible, the binding device of the present invention can be used for front opening/closing chute, lower bayonet chute, and rear bayonet chute.
It is constructed by combining an advancing movement chute with a lifting head and a relay device that play the predetermined roles of forward and reverse feeding and stopping of the strap, and a relay device, and these chute operate in conjunction with each other at the advancing position in connection with the conveyance of the object to be bound. This allows the straps to be pre-draped, and when transporting objects to be bound, the straps are evacuated to a position where transport cannot be prevented and are on standby. These members are arranged so that their operations are performed at positions where they do not interfere with the conveyor for transporting the objects to be bound.

The overall specific configuration of the longitudinal binding device of the present invention is that the objects to be bound, which are made by laminating long sheet-like materials, are bound in the longitudinal direction by a binding strap, so that the objects to be bound are not supported at a point other than the binding point. For a conveyor that conveys the straps in the longitudinal direction, a strapping device frame is provided on the top of the pedestal that straddles the conveyor, and an elevating head is installed inside the frame to guide, feed, and pull back the straps, as well as sealing and cutting. A front opening/closing chute that moves between a standby position and a downward advancing position is provided at the front in the bundle conveyance direction, and a lower bayonet chute that moves forward and backward between a waiting position below the upper surface of the conveyor and an upward advancing position is provided below. The lower bayonet chute is connected at the advanced position so that the binding strap sent out by the elevating head is guided downward in front of the object to be bound before being transported, and the strap is placed at the proximal position of the lower bayonet chute while the object is being transported. A relay device is attached that has the function of temporarily holding the tip and then re-sending it out, and a rear bayonet chute that moves up and down between the advanced position connected to the output side of the relay device and the upper standby position is installed at the rear. The present invention is characterized in that the binding strap is connected to the relay device at the advancing position and the binding strap sent out by the relay device is guided to the lifting head behind the object to be bound which is stopped after being conveyed.

(Function) First, the front opening/closing chute and the lower bayonet chute are advanced to the front position of the object to be bundled on the transport conveyor, and the strap is sent out from the lifting head.If the tip of the strap reaches the relay device via these chute, it is relayed. Grip on the device.

Both chute are evacuated to the standby position, and the straps are freed in the elevating head to transport the objects to be bound forward. The strap is pulled out and pre-draped around the object to be tied.

The rear bayonet chute is advanced downward behind the object to be bound and connected to a relay device, and the strap is sent by the relay device and introduced into the lifting head, where the tip is gripped.

The strap is pulled back by the lifting head, the strap is detached from the chute and the relay device, and tightened around the object to be tied, and in the tightened state, the overlapping portion of the strap is sealed, and the strap is separated from the following strap.

This series of operations performs longitudinal binding.

(Examples) Hereinafter, the present invention will be explained in detail with reference to examples shown in the accompanying drawings. FIG. 1 shows a side view of a longitudinal binding device according to an embodiment of the present invention in its original standby position, and FIG. 2 shows a front view thereof.

Objects 1 to be bound made of elongated sheet-like materials are placed on a conveyor 2 having rollers arranged in rows, and are conveyed horizontally forward in the longitudinal direction indicated by arrow A. The objects to be bound are supported on the rollers on both sides as shown in FIG. 2, and the unsupported distance between them does not interfere with the transport of the straps on the binding line and the winding device thereof. To this extent, the conveyor 2 may be a chain conveyor or the like. 3 indicates the height position of the upper surface of the conveyor, that is, the lower surface of the objects to be bound.

A gate-shaped binding device frame 5 is provided over the conveyor 2 and above the pedestal 4. Inside the gate-shaped device frame 5, there is provided an elevating head 8 which is vertically guided by a vertical carriage 6 and connected to an air cylinder 7 to move up and down. A binding strap 10, such as a continuous steel strip, discharged from the dispenser 9 is guided downward through the upper guide 11 of the frame 5 and passes through the lifting head 8. The tying head 8 itself is equivalent to that for known horizontal tying machines and comprises the functions for guiding, delivering and pulling back the tying strap 10, as well as the functions for cutting and sealing. However, some of these functional parts can be installed separately if necessary. 1
0' indicates the tip of the binding strap 10. The head 8 waits at the upper limit position.

A front opening/closing chute 14 is provided at the front of the portal device frame 5, which is connected to an air cylinder 13 and moves between a standby position shown by a solid line in FIG. 1 and a downwardly advanced position 14' shown by a chain line.

In the standby position, the front opening/closing chute 14 is out of the path of the objects 1 to be bound passing below, and has a curved chute shape, and in the downward advancing position 14', the tip 1 of the binding strap sent out from the lifting head 8 is removed.
0' and generally guides it in a rearward and downward direction.

A lower bayonet chute 16 is provided below the portal device frame 5 and is connected to an air cylinder 15 and moves forward and backward between a standby position shown by a solid line and an upwardly advanced position 16' shown by a chain line. In the standby position, the lower bayonet chute 16 is located below the upper surface 3 of the conveyor and is out of the path of the objects 1 to be bound passing above, and in the upwardly advanced position 16', it advances forward and upward to connect to the front opening/closing chute 14' in the advanced position. and guides the tip 10' of the binding strap fed from the latter. At the proximal end of the lower bayonet chute 16, a relay device 17 is provided which has the functions of holding and delivering a strap. As shown in FIGS. 9 and 10, the relay device 17 includes a roller 20 and a passive pulley 2 on a shaft 19 rotatably supported by a bearing 18.
1. The reverse rotation prevention device 22 is installed, and the roller 20
A lever 24 rotatably supports a roller 23 facing the
is pivoted to a pivot 25 and can be opened and closed by a connected rod 26.

As shown in FIG.
In the closed position shown in FIG. 10, the distal end 10' of the strap is clamped between the rollers 20 and 23, and the strap 10 is fed out, and in the open position shown in FIG. 10, the strap 10 is released. . The roller 20 on the drive side is suitably a grooved roller to ensure the retention and advancement of the strap.

At the rear of the portal device frame 5, there is provided a rear bayonet chute 28 which is connected to the air cylinder 27 and moves up and down between a standby position shown by a solid line and a downward advancing position 28' shown by a chain line.

In the standby position, the rear bayonet chute 28 is out of the path of the object to be tied 1 passing below, and in the downward advancing position 28', it is connected to the outlet side of the relay device 17, so that the tip end 10' of the strap sent out from the latter is It is guided and introduced below the lifting head 8.

The chute 14, 16, 28 has a closed shape, for example, as shown in the cross-sectional view in FIG. It has a configuration shown by B that separates inward.

The longitudinal binding device of the present invention having the above configuration is operated in the order shown in FIGS. 1, 3 to 8.

In the original standby position shown in FIG. 1, the lifting head 8 is in the raised position and the chute 14, 16, 28 is in the standby position. The lifting head 8 is in a state in which the strap 10 is ready to be delivered, and the tip 10' is in the position shown.

First, as shown in FIG. 3, the front opening/closing chute 14 and the lower bayonet chute 16 are advanced and connected to each other. The strap 10 is sent out from the lifting head 8, and the tip 10' is connected to the relay device 17.
When reaching , the feeding is stopped, both rollers 20 and 23 of the relay device 17 are closed, and the tip end 10' is clamped.

Thereafter, the chute 14, 16 is returned to the standby position.
As shown in FIG. 4, the straps 10 are removed from these chutes. In this state, conveyance of the objects 1 to be bound is started. At this time, the delivery mechanism of the head 8 is opened and the strap is delivered freely or according to the transport speed as required. As shown in FIG. 5, as the object 1 to be bound moves, the strap 10 is pulled out from the dispenser 9 and is loosely wrapped around the object 1 to be bound.

As shown in FIG. 6, at a position where the rear end of the object to be bound 1 has passed the rear bayonet chute 28, the rear end is detected by the phototube 31, and the conveyance of the object to be bound 1 is stopped.

With the strap feeding mechanism in the lifting head 8 open, the rear bayonet chute 28 is lowered to the downwardly advanced position 28' and connected to the exit side of the relay device 17, as shown in FIG. 17 to guide the strap 10 and feed its tip 10' into the lifting head 8 and clamp it. At this time, the strap 10 is fed without interfering with the conveyor 2.

Thereafter, as shown in FIG. 7, the rear bayonet chute 28 is raised to the standby position as shown and detached from the strap 10, and the relay device 17
Also releases strap 10 as a release.

After winding is completed as described above, lift head 8
The inner strap feeding mechanism is in the engaged state, and the elevating head 8 is moved to the lowered position 8' as shown by the chain line in FIG.
While lowering the strap 10, the strap feeding mechanism of the head 8 is driven in the opposite direction to tighten the strap 10. At this time, the straps are chute 14, 16,
28 and is free from the relay device 17 and the conveyor 2. When the head 8 comes into contact with the object 1 to be bound, the strap 10 is finally tightened.

In this state, the head 8 itself is supported by a structure 12 that can float in the tightening direction in order to obtain a stronger tightening force that is more uniform throughout the strap. In this way, after the tightening is completed, sealing is performed, and at the same time, the strap is cut from the subsequent strap to complete the binding.

Thereafter, the head 8 rises and returns to its original standby position.
The bound objects are carried out and returned to the initial state.
The above operations can be easily controlled by a sequence operation control mechanism.

This sequence operation can be implemented with various modifications.

When the above-mentioned series of elevating heads 8 and linking devices are used to bind a plurality of objects 1 in the longitudinal direction,
Multiple sets can be installed as needed.

In the above embodiments, the explanation has been made regarding mainly long steel plates being used as sheet-like materials for the objects to be bound, and binding with steel band straps. However, the present invention can be applied even when the objects to be bound are made of different materials, and the straps may be made of polypropylene or the like. It can be made of synthetic resin.

(Effects of the Invention) As described above, according to the present invention, objects to be bound such as long sheet-like materials can be efficiently bound in the longitudinal direction regardless of the length. Since this binding device has a structure that is established regardless of the length of the objects to be bound, it can be constructed easily and lightweight, and the cost of the device is low. In addition, there is no difference in tightening time due to the difference between the largest and smallest objects to be tied, and the cycle time can be shortened. Conventionally, automatic bundling in the longitudinal direction was considered impossible in practice when the maximum-minimum difference was large, but this has become possible with the present invention.

[Brief explanation of drawings]

Fig. 1 is a longitudinal direction of one embodiment of the present invention, a side view of the binding device in its original standby state, Fig. 2 is a front view thereof, and Fig. 3 is a subsequent advancement of the front opening/closing chute and the lower bayonet chute. Figure 4 is a side view of the connected state, Figure 4 is a side view of the state in which the conveyance of the bound objects is started, Figure 5 is a side view of the conveyed articles during subsequent transport, and Figure 6 is the subsequent stop of the conveyed objects and the rear side view. Figure 7 is a side view of the strap in its lowered and advanced state; Figure 7 is a side view of the strap after it has been predraped; Figure 8 is a side view of the strap after it has been tightened, sealed, and cut; Figure 9 is its relay device. 10 is a front view of the roller in the strap release position, and FIG. 11 is a sectional view of the chute. DESCRIPTION OF SYMBOLS 1... Object to be bound, 2... Conveyor, 3... Conveyor top surface, 4... Frame, 5... Binding device frame, 6... Vertical carriage, 7, 13,
15, 27... Air cylinder, 8... Lifting head, 8'... Head lowering position, 9... Dispenser, 10... Binding strap, 10'... Strap tip, 11... Upper guide, 12... Flow 14...Front opening/closing chute, 14'...Front opening/closing chute advancement position,
15...Lower bayonet shot advance position, 16
... Lower bayonet shoot, 17 ... Relay device, 18 ... Bearing, 19 ... Shaft, 20, 23 ...
Roller, 21... Passive pulley, 22... Reverse prevention device, 24... Lever, 25... Pivot, 26
... Rod, 28... Rear Bayonet Shoot,
28'...Rear bayonet chute descent advance position,
29...Spring, 30...Cover, 31...Phototube, A...Bundling object conveyance direction, B...Strap detachment direction.

Claims (1)

[Scope of Claims] 1. In order to bind objects to be bound in the longitudinal direction by stacking long sheet-like materials with a binding strap, the conveyor is different from a conveyor in which the objects to be bound are supported at a place other than the binding point and conveyed in the longitudinal direction. A binding device frame is provided on the top of the pedestal, and an elevating head is installed inside the frame to have the functions of guiding, sending out, pulling back, sealing, and cutting the binding straps, and there is a standby position in front of the binding strap and a lower part. A front opening/closing chute is provided that moves between the advance position and the
A lower bayonet chute that moves forward and backward between the standby position below the upper surface of the conveyor and the upward advance position is provided below, and both chute are connected at the advance position to attach the binding straps sent out by the lifting head to the objects to be bound before being conveyed. A relay device is installed at the base end of the lower bayonet chute that has the function of temporarily holding the tip of the strap while conveying the object to be bound and then sending it out again. A rear spring chute that moves up and down between the advanced position connected to the exit side and the upper standby position is provided, and the rear spring chute that moves up and down is connected to the relay device at the advanced position so that the binding strap sent out by the relay device can be stopped after being conveyed. A longitudinal binding device characterized in that the rear of the bundled items is guided to an elevating head. 2. The longitudinal binding device according to claim 1, wherein the elevating head is provided with a floating mechanism.