JP3063012B2 - Automatic binding method and apparatus for rigid objects - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for fixing a rigid object to be tied, such as a case in which a metal strip or a metal wire is bound with a binding band in order to prevent the metal strip or metal wire from being unraveled. The present invention relates to an improved method and apparatus for automatically binding.

[0002]

2. Description of the Related Art For example, a coil of a metal strip or metal wire is conveyed to an automatic binding device by a roller conveyor or the like, and the automatic binding device binds the coil with a heat-fusible binding band such as a polypropylene band. Is being done.

[0003] This type of automatic binding apparatus generally has a receiving surface for receiving an object to be bound, the receiving surface being continuous with a conveying surface of a conveyor, and a body attached to the body and mounted on the receiving surface. A band winding and tightening mechanism for winding the binding band around the rigid binding object, and a fusion cutting section for fusing the overlapped portion of the binding band wound around the binding object and separating it from the subsequent binding band. Have.

[0004] The band winding and tightening mechanism is a band feeding and tightening means comprising a feeding roller for feeding a binding band from a binding band supply source, and is fed by the band feeding and tightening means. Arch-shaped band guide means for guiding the binding band around the binding object. After winding the binding band, the band feeding and tightening means is driven in a direction opposite to the feeding direction of the binding band to bind the binding band to the binding object.

[0005]

In the prior art automatic binding apparatus for a tied object, a gap is formed in the band wrap so that a fusion-bonding portion of the tying band can pass when the tied object is conveyed. It is formed between the machine frame plate of the attaching and tightening mechanism and the transport surface. For this reason, there has been a defect that the binding band that is bound to the coil to be bound is loosened. Usually, a compressible binding object can absorb the looseness of the binding band by its compressibility, but a rigid binding object such as a metal strip or a coil of a metal wire has no compressibility, so that the binding band is not compressed. Remains loose after binding.

On the other hand, a rigid binding object such as a metal strip or a coil of a metal wire cannot move easily on a conveyor because of its heavy weight, and has a rectangular cross-section at the winding portion of the binding band. For this reason, the four corners of this rectangular cross section cannot slide on the surface of the object to be tied when the tying band is tightened, so that the tying becomes insufficient. If the tightening force is increased, the tying band is tightened. At this time, the frictional resistance is integrated at the corners of the coil by the tightening force applied to the binding band in only one direction, so that the tension is maximized at the corner A of the coil 1 and the binding band 2 is There was a disadvantage of cutting at the portion A (see FIG. 9).

The object to be bound is tightened by tightening the binding band.
If there is no room for loosening,
Band feeding and tightening means (feed roller
Binding head) against the spring in the feeding direction of the binding band
Tightening force to the binding band displacement to me by the reaction of the spring to
Is added to the binding band at the corner on the winding start side of the binding band.
Has been proposed to bind together by absorbing looseness
(See JP-A-49-33795). But,
This device is used when there is no room for loosening the binding band.
In addition, the binding roller is driven in the
If you try to further tighten the cable, bind it through the binding band.
Since the head acts to be pulled by the object to be tied,
Excessive tension is applied to the binding band and the binding band ends
At the corner on the other side, it is pulled against large frictional resistance
The ties are damaged before the ties absorb the slack
There is a risk of slumping or cutting.

An object of the present invention is to avoid the above drawbacks, sintered
The bundled band is not damaged or cut,
Do not loosen the ties at any corner of the object.
It is possible to tie the binding band to the object
It is an object of the present invention to provide a method and apparatus for automatically binding a rigid body to be bound.

[0009]

First means for solving problems of the present invention According to an aspect of the binding band supplied from the bundling band source to the conveyance has been rigid material to be bound by the conveyor band feed-tightening means After being wound by a band winding / tightening mechanism including a band guide means and a band feeding / tightening means
In the automatic bundling method of the rigid bundling object, the binding band is driven by the feeding roller in the direction opposite to the band feeding direction to tighten the binding band, and the overlapping portion of the binding band is thermally fused. Band wrapping and tightening machine
The structure is elastic in both the feeding direction and the tightening direction of the binding band
An object of the present invention is to provide a method for automatically binding rigid objects to be bound, wherein the automatic binding is allowed.

[0010] The second means for solving the problems of the present invention is the first section.
An automatic binding method for rigid objects to be bound by the
The band feeding and tightening means clamps the binding band
Further includes a band tightening clamp for
After being tightened to the material to be bound by the feed roller, the band
This band while being clamped by the tightening clamp
Pull the tightening clamp back in the direction
Rigidity characterized by further tightening the binding band
An object of the present invention is to provide a method for automatically binding a body-bound object.

[0011] A third object of the present invention is to provide an airframe having a receiving surface provided continuously with a conveyor surface of the conveyor so as to receive a rigid binding object fed by the conveyor, A band winding and tightening mechanism that is attached and winds a binding band around the rigid binding object on the receiving surface;
A fusion cutting section for fusing the overlapped portion of the binding band wound around the rigid binding object and separating it from the subsequent binding band; the band winding and tightening mechanism is configured to supply the binding band from the binding band supply source. Feeding or tying band
A band feeding / tightening means having a feeding roller driven and tightened in the opposite direction, and a binding band fed by the band feeding / tightening means are wound around a rigid binding object. And a band guide means for guiding the band to be attached, and the feeding roller of the band feeding / tightening means drives the band in a direction opposite to the feeding direction of the band after the band is wound. In an automatic bundling apparatus for a rigid body to be bound so as to be bound to a body to be bound, a band winding and tightening mechanism freely and elastically displaces the body in both a feeding direction and a tightening direction of the binding band. An object of the present invention is to provide an automatic binding device for a rigid binding object, which is attached so as to be able to perform the binding.

According to a fourth aspect of the present invention, there is provided an automatic binding apparatus for a rigid object to be bound, which is a third aspect of the present invention, wherein the band feeding / tightening means clamps the binding band.
Further comprising a band tightening clamp for
Do not tighten the clamp in the direction opposite to the feeding direction of the binding band.
Is held so that it is driven in the
After being fastened to the material to be bound by the
While being clamped by the
Band tightening clamp retracts in the direction of banding band tightening
Rigid connection characterized by being able to perform
An object of the present invention is to provide an automatic binding device for bundles.

[0013]

In this manner, after the binding band is wound around the object to be bound, when the binding band is tightened in a direction opposite to the winding (feeding) direction, the binding band is wound by the band winding and tightening mechanism. If the binding band can be freely elastically displaced in both the feeding direction and the tightening direction of the
Since the bundle is swung from the left and right , the binding band is tightened evenly from both the corners A and B of the coil 1 (see FIG. 9), and thus the binding band is tightened. The maximum tension required to fit is halved and before the ties absorb the slack
Without damaging or cutting at the corners of the material to be tied,
The binding object can be effectively bound.

[0014] Also, the band feeding and tightening means is a binding band.
Further includes a band clamp for clamping
The binding band is fastened to the binding object by the feed roller.
After being set, it is clamped by the band tightening clamp.
While tightening the band tightening clamp
When the feed roller is retracted in the
In addition to the tightening, the banding band is further tightened
So, the binding band is effectively tied to the binding object without loosening
be able to.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIGS. 1 to 3 show an apparatus 10 for carrying out an automatic binding method of a rigid binding object according to the present invention. Reference numeral 10 denotes a roller conveyor 1 which receives the coil 1 which is a rigid object to be bound which is fed by the roller conveyor 12.
2 and a body 18 having a receiving surface 16 provided continuously with the transfer surface 14 (see FIG. 2), and a binding band 2 attached to the body 18 and attached to the rigid body 1 on the receiving surface 16.
(See FIGS. 7 to 9). A band winding / tightening mechanism 20 for winding the bundled portion 2c (see FIG. 9) of the binding band 2 wound on the rigid binding object 1 is fused to form a subsequent band. And a fusion cutting section (not shown) that separates from the binding band.
After the band winding and tightening mechanism 20 winds and binds the binding band 2 around the coil 1, the fusion cutting portion rises so as to engage with the overlapping portion 2 c of the binding band 2, 2 is fused and cut.

The band winding / tightening mechanism 20 includes a band feeding / tightening means 22 (see FIGS. 7 to 9) for feeding the binding band 2 from a binding band supply source (band reel), not shown. And band guide means 24 for guiding the binding band 2 fed by the band feeding / tightening means 22 around the coil 1. The band feeding / tightening means 22 and the band guide means 24 are mounted on a machine frame 30 having wheels 28 running on a running rail 26.

As shown in FIGS. 7 to 9, the band feeding and tightening means 22 includes a pair of feeding rollers 34 supported on the machine frame 30 via a support plate 32, and a band tightening clamp 36. (See FIG. 7). When the binding band 2 is wound, the band tightening clamp 36 is open and the feed roller 34 is driven so as to feed the binding band 2 in the winding direction (left direction in FIG. 7). Further, when the binding band 2 tightening Mbeki, feed roller 34, forming
Driven to tighten the bundle band 2 and tightening the band
After the clamp 36 is tightened by the feed roller 34,
A machine that closes to give the banding band 2 more tightening
The drive cam (not shown) built in the frame 30
It retracts in the tightening direction.

As can be seen from FIG. 3, the support plate 32 shown in FIG. 7 integrally has a fixing plate 38 having a slit 38a through which the overlapping portion 2c of the binding band 2 can pass. The plate 38 has a gap g with respect to the upper surface of the receiving surface 16, that is, the lower surface of the coil 1 which is the object to be tied (see FIG. 3). 2 is set to such an extent that the fused portion 2c can pass through. In FIG. 3, reference numeral 40 denotes a slide plate, and reference numeral 42 denotes a press block. These members have a function of sandwiching the overlapping portion 2c of the binding band 2 when the overlapping portion 2c is fused. After the fusion of the overlapping portion 2c, the slide plate 40
Is opened so as to be removed from the fusion polymerization section.

The band guide means 24 comprises a channel-shaped arch-shaped guide member 44 mounted on the machine frame 30. The coil 1 to be bound is conveyed to a part of the guide member 44 so as to straddle it. A lifting part 46 that can be raised and lowered so as not to interfere with the air cylinder.
8 ascends and descends. When winding the binding band 2 around the object to be bound, the object to be bound straddles the arch-shaped guide member 44, and then the elevating portion 46 is lowered by the air cylinder 48 to close the arch. When the binding band 2 is fed from the band feeding and tightening means 22, the binding band 2 is wound around the coil 1 to be bound through the channel of the closed arch-shaped guide member 44. You will be guided.

Machine frame 30 of band winding and tightening mechanism 20
As shown in FIGS. 1 and 4, one support rod 50 fixed to the body 18 and connected to and supported between the body 18.
It is elastically connected by a pair of springs 52, 52 '. That is, the end of the support rod 50 on the machine frame 30 side penetrates through the through hole 30a of the machine frame 30, and the spring receivers 54, 54 'attached to the rod portions on both sides of the machine frame 30 are sandwiched therebetween.
The springs 52, 52 ′ are arranged between and the machine frame 30, and are connected to the machine frame 30 via these springs 52, 52 ′. Therefore, the band winding and tightening mechanism 20 is connected to the body 1
8 is attached so that the binding band 2 can be freely and elastically displaced in both the feeding direction and the tightening direction.

In the automatic tying device 10, the fixing plate 38 of the band winding and tightening mechanism 20 comes into contact with the lower surface of the coil 1 to be tied, and the overlapping portion 2c of the tying band 2 approaches the lower surface of the coil 1. So that the band winding and tightening mechanism 2
The apparatus further includes lifting means 56 for lifting the zero machine frame 30. As shown in detail in FIGS. 5 and 6, the elevating means 56 supports the wheel 28 and is mounted on the machine frame 30 by a pin 58 so as to be pivotable with a pin 58. And an air cylinder 62 having a connected piston rod 62a. As shown in FIG. 5, when the piston rod 62a of the air cylinder 62 is contracted, the machine frame 30 is in a lowered state. However, as shown in FIG. Although the bracket 60 is to be lowered with the fulcrum 58 as a fulcrum, the machine frame 30 is relatively raised because the wheels 28 are on the traveling rail 26. The lifting stroke of the machine frame 30 corresponds to the gap g shown in FIG.

Next, the automatic tying method of the present invention will be described in detail with reference to FIGS. 7 to 9. As shown in FIG. The coil 1 is positioned as shown in FIG. 2 over the band guide means 24 where the arch is open.
In this state, after the elevating portion 46 of the band guide means 24 descends to close the arch-shaped guide member 44, the band is wound.
The band feeding and tightening means 22 of the tightening mechanism 20 is driven in the winding direction of the binding band 2 (the leftward direction in FIG. 7).
That is, the band tightening clamp 36 is opened, and the feed roller 3
4 is driven in the winding direction to feed the binding band 2 from the binding band supply source as shown in FIG.

When the binding band 2 is fed in this manner, the binding band 2 is guided around the coil 1 through a channel in the arch of the band guiding means 24. As shown in FIG. 8, when the tip 2a of the binding band 2 reaches the lower surface of the slide plate 40, the feeding of the feeding roller 34 is stopped. Then, as shown in FIGS. 8 and 9,
By driving the lifting / lowering means 56, the band winding / tightening mechanism 20
Is lifted so that the fixing plate 38 comes into contact with the lower surface of the coil 1, and the band feeding / tightening means 2 is
The second feeding roller 34 is driven in a tightening direction opposite to the feeding direction to perform primary tightening of the binding band 2. next,
The band tightening clamp 36 is closed and the feeding roller 3 is closed.
4 is stopped, and the band tightening clamp 36 is
9 by the rotation drive of a drive cam (not shown) built in
In the right direction (the direction of tightening the binding band) .
Secondary tightening is performed by further tightening the binding band 2. Before the primary fastening and the secondary fastening of the binding band 2 are performed, as shown in FIG.
The tip clamp 40 'for pressing the tip 2a of the binding band 2 from below so that the tip 2a of the binding band 2 is clamped between these positions is advanced to the clamping position by a clamp moving mechanism (not shown).

As mentioned above, the fixing plate 38 contacts the lower surface of the coil 1 and the band feeding / tightening means 2
2, the feeding roller 34 and the band tightening clamp 36 are connected by a pair of springs 52, 52 'to the body 18, that is, the coil 1 thereon, between the feeding direction and the tightening direction of the binding band 2. Since the degree of freedom is given so that both can be freely and elastically displaced, the binding band 2 is left
Because the shaken to the right, tightening of that, as shown in FIG. 9, it is evenly performed from both the corner portion A and B of the coil 1. Accordingly, the frictional resistance of the binding band 2 integrated at the corner of the coil 1 is reduced by half, and the maximum tension required to tighten the binding band 2 is reduced by half. For this reason, the binding band 2 can be bound without cutting at the corners of the coil 1. As described above, since the band winding and tightening mechanism 20 can be moved up and down by the elevating means 56, when the binding band 2 is bound, the overlapping portion 2c of the binding band approaches the lower surface of the binding object, and the binding band 2 Is preferable because the loosening can be more reliably absorbed at the time of tightening, but the elevating means 56 may be omitted.

In this way, the binding band 2 is used to
After that, the overlapping portion 2c of the binding band 2 is fused and cut between the slide plate 40 and the press block 42 by a fusion cutting portion (not shown). Thereafter, the lifting / lowering means 56 is driven in the opposite direction to drive the band winding and tightening mechanism 2.
0 descends to the original position, slide plate 40 fusion polymerization
The band guide means 2 is opened so as to be pulled out from the portion 2c.
Then, the ascending / descending portion 46 of the coil 4 is lifted to open the arch-shaped guide member 44, and the roller conveyor 12 is driven to carry out the coil 1. In this case, as described above, the fixing plate 38 of the machine frame 30 of the band winding and tightening mechanism 20 has a gap g from the lower surface of the coil 1 due to the lowering by the lifting / lowering means 56. Fixing plate 38 of machine frame 30 of band winding and tightening mechanism 20
Can be carried out without being caught by

In the above embodiment, the case where the object to be bound is a metal strip or a coil of a metal wire has been described. However, if the rigid body is not compressible and cannot be elastically bound to the binding band, For example, the present invention can be applied to other objects to be bound, such as a wire bundle coil and a packaging container such as a cardboard box.

[0027]

According to the present invention, when the binding band is tightened after the binding band is wound around the material to be bound as described above, the band feeding / tightening means is moved in the feeding direction of the binding band. And the tightening direction can be freely and elastically displaced in both directions, so that the tightening of the tying band is uniformly performed from both of the two corners of the material to be tied, maximum tension required to tightening the band by half, forming
Before the band absorbs its looseness,
Effective binding of objects to be tied without cutting at corners
can do.

Also, the band feeding / tightening means is a binding band.
Further includes a band clamp for clamping
The binding band is fastened to the binding object by the feed roller.
After being set, it is clamped by the band tightening clamp.
While tightening the band tightening clamp
When the feed roller is retracted in the
In addition to the tightening, the banding band is further tightened
So, the binding band is effectively tied to the binding object without loosening
be able to.

[Brief description of the drawings]

FIG. 1 is a schematic front view of an apparatus used for carrying out an automatic binding method of a rigid binding object according to the present invention.

FIG. 2 is a schematic top view of an apparatus used for carrying out an automatic binding method of a rigid binding object according to the present invention.

FIG. 3 is an enlarged side view showing a relationship between an object to be tied and an overlapping portion of a tie band in the apparatus of the present invention.

FIG. 4 is an enlarged side view of support means for supporting the band winding and tightening mechanism so that the mechanism can be elastically displaced in a feeding direction and a tightening direction of the binding band.

FIG. 5 is an enlarged front view of a main part of a lowering state of an elevating means for elevating and lowering a band winding and tightening mechanism.

FIG. 6 is an enlarged front view of a main part of a lifting means for lifting and lowering a band winding and tightening mechanism.

FIG. 7 is an enlarged front view of a main part in a state where feeding has been started to wind a binding band around a binding object;

FIG. 8 is an enlarged front view of a main part in a state where a binding band is wound around an object to be bound;

FIG. 9 is an enlarged front view of a main part in a state where a binding band is fastened to a binding object.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 coil 2 binding band 2a tip of binding band 2b rear end of binding band overlapping portion 2c binding band overlapping portion 10 automatic binding device for rigid body to be bound 12 roller conveyor 14 transfer surface 16 receiving surface 18 body 20 band winding / Tightening mechanism 22 Band feeding / tightening means 24 Band guide means 26 Running rail 28 Wheel 30 Machine frame 32 Support plate 34 Feed roller 36 Band tightening clamp 38 Fixing plate 38a Slit 40 Slide plate 40 'Tip clamp 42 Press block 44 arch-shaped guide member 46 elevating part 48 air cylinder 50 support rod 52 spring 52 'spring 54 spring receiver 54' spring receiver 56 elevating means 58 pin 60 bracket 62 air cylinder 62a piston rod

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65B 13/00-13/34 B65B 27/00-27/12

Claims (4)

(57) [Claims] 1. A band wrapping / tightening mechanism including a band feeding / tightening means and a band guide means for winding a tying band supplied from a tying band supply source onto a rigid body to be conveyed by a conveyor. After attaching the band ,
A rigid binding unit that drives the binding band in a direction opposite to the band feeding direction by a feeding roller of a fastening unit to tighten the binding band, and heat-fuses the overlapping portion of the binding band. In the automatic tying method of an object, when the tying band is tightened, the band wrapping / tightening mechanism is provided with the tying band.
An automatic binding method for a rigid binding object, wherein elastically displacing in both the feeding direction and the tightening direction is allowed. 2. The automatic binding of a rigid object to be bound according to claim 1.
A bundling method, wherein the band feeding / tightening means is
Update the band tightening clamp to clamp the binding band.
The binding band is moved by the feed roller to the
After being tightened to the material to be tied,
The band tightening clamp is clamped by
In the direction of tightening the binding band.
Automatic binding method for rigid objects to be bound. 3. A fuselage having a receiving surface continuously provided on a conveyor surface of the conveyor so as to receive a rigid binding object fed by the conveyor, and a rigid body attached to the fuselage and on the receiving surface. A band winding and tightening mechanism for winding the binding band around the binding object, and a fusion cutting section for fusing the overlapped portion of the binding band wound around the rigid binding object and separating it from the subsequent binding band. Equipped with the band winding
Tightening mechanism feeds zip ties from zip tie supply
Or drive the binding band in the direction opposite to the feeding direction.
Band feeding and tightening means having a feeding roller for tightening and tightening, and band guiding means for guiding the binding band fed by the band feeding and tightening means so as to be wound around the rigid binding object. After the winding of the binding band, the feeding roller of the band feeding / tightening means drives the binding band in a direction opposite to the feeding direction of the binding band to attach the binding band to the object to be bound. In the automatic binding device for binding a rigid object to be bound,
The tightening mechanism is attached to the body so that it can be freely and elastically displaced in both the feeding direction and the tightening direction of the tying band. Binding unit. 4. The automatic tying of a rigid object to be tied according to claim 3.
A bundling device, wherein the band feeding / tightening means includes:
Additional band tightening clamp to clamp the binding band
And the band fastening clamp includes
Is held so that it is driven in the direction opposite to the
The binding band is moved by the feeding roller to the
After being tightened to the material to be tied,
The band tightening clamp is clamped by
Can be retracted in the tightening direction of the binding band.
Automatic binding of rigid objects to be bound, characterized in that
apparatus.