JP3151545B2 - Binding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tying apparatus which enables tying of vacuum-packed bags and the like, thereby eliminating wrapping and trays.

[0002]

2. Description of the Related Art Since a conventional binding device aims at strongly binding relatively hard materials such as Chinese cabbage and green onion, the tension of a binding tape is increased at the time of binding. An example of this conventional binding device is shown in FIG.
6), an endless chain 3 is hung on a sprocket 2 provided on a frame 1, and a number of buckets 4 for holding the object W to be bound are attached to the endless chain 3. Is transported in the direction of the arrow, the binding tape 6 is drawn out of the tape 5 via a plurality of guide rollers so as to cross this transport path, and the end thereof is gripped by the lower binding head 7.

[0003] Then, the binding tape W is pulled out across the transport path by pushing the binding tape 6 with the binding target material W being conveyed, thereby pulling out the binding tape 6 and binding the binding tape 6 to the binding object. The tape 5 is rotated in the reverse direction while pulling the binding tape 6 while holding the binding object W pressed against the bucket 4 by the binding object presser 9 to increase the winding force (hereinafter referred to as back tension). ,
Next, the lower binding head 7 and the upper binding head 8 are brought close to each other, and the end of the wound binding tape 6 is pressed and cut. The objects W to be tied in this manner are attached to the bucket 4
When the objects W are sequentially conveyed and arrive at the object-to-be-tied presser 10, the object-to-be-tied W bound by the object-to-be-tied presser 10 is pressed from above to hold the object-to-be-tied W in the bucket 4, and to be stuck with a sticker 11 The crimp cut end of the tie tape was to be processed.

[0004]

Accordingly, for example, thinly sliced hams are vacuum-packed to enhance their preservation, and three or five such vacuum-packed bags are collectively displayed on a window. If you do
A predetermined number of bags packed in a vacuum are placed in a tray and wrapped. The work of using and wrapping trays in this way is troublesome and inefficient, and the most serious problem is the new problem of pollution caused by disposal of trays and wraps. It is that you are. Under such circumstances, it has been demanded that products be displayed in stores without using a tray.

On the other hand, when the vacuum-packed bag is put into the tray, the bag is shifted little by little so that the product name printed on the bag can be seen, and the bag placed in the tray is trimmed. To improve the appearance and product value.

Therefore, when a predetermined number of bags vacuum-packed using the above-mentioned conventional binding apparatus are shifted little by little so that the printed product name can be seen, the conventional binding apparatus uses a back tension on the binding tape. 9, the edge 12 of the vacuum pack W on which the binding tape 6 is first applied is rolled up like 12 'by the back tension of the binding tape 6, as shown in FIG. The bags W of the vacuum packs that have been lifted up or shifted little by little are gathered together, and the bags are shifted little by little so that the product name printed on the bags can be seen, and the tray However, there is a problem in that it is not possible to unite such that the shape of the bag put in the bag is improved to enhance the appearance and the product value.

[0007] Further, since the cause of the above-mentioned problem is that the backing tension is applied to the binding tape 6, when the binding is performed with the binding tape 6 having no back tension, the binding tape 6 meanders, and FIG. As shown, the binding tape 6 may be hung obliquely to the bag W as shown at 6 '. When the binding tape 6 is skewed obliquely as described above, the appearance of the binding tape 6 is degraded, and when the ends of the binding tape 6 are pressed by the upper and lower binding heads 9 and 10, the ends of the binding tape 6 are shifted. Therefore, the pressure-bonding between the adhesive surfaces is insufficient, and in some cases, there is a problem that the cut ends of the binding tape do not overlap and the pressure-bonding between the adhesive surfaces cannot be performed.

Further, when the bags arranged side by side are shifted little by little while the back tension of the binding tape 6 is lost, the conventional binding object pressers 9 and 10 are provided only on the upper side of the transport path. Since the objects to be tied are pressed against the bucket 4 to hold the objects to be tied W, the tying tape cannot be adhered to the surfaces of the bags which are shifted little by little and tied. Even later, there is a problem that bags are gathered and sometimes dropped in an intermediate process such as transportation.

According to the present invention, even if bags such as vacuum packs are shifted and tied in a line, the edges of the bags are not bent, and the binding tape is prevented from meandering, and each of the bags which are skewed is arranged. It is an object of the present invention to provide a binding device capable of coping with a pollution problem by securely affixing a binding tape to the surface to eliminate the displacement of the bag, and at the end, eliminating the use of wrapping and the use of a tray.

[0010]

Means for solving the above-mentioned problems according to the present invention are as follows. An object to be tied is placed on a large number of buckets provided in an endless chain, conveyed, and a wrapping tape is wound around the object to be tied. In a binding device in which the end of the binding tape is turned and then cut by pressing the binding tape end with the upper and lower binding heads, a tape pull-out arm is provided so as to be reciprocable in parallel with the movement direction of the chain, and at the tip of the tape pull-out arm. A tape guide roller is provided rotatably, and a bracket is provided rotatably on a support shaft of the tape guide roller, an auxiliary roller is supported on the bracket, and a portion of the binding tape wound around the binding object is vertically moved. The tape pressing member for pressing from above is provided so as to be vertically movable.

[0011]

According to the present invention, the following operations are provided. That is, a tape pull-out arm is provided so as to be reciprocally movable in parallel to the moving direction of the chain for carrying the objects to be tied on a large number of buckets provided on the endless chain, and
Since the tape guide roller is rotatably provided at the tip of the tape pull-out arm, the tape is pulled out by advancing the tape pull-out arm and pulled out by the tape guide roller. It is possible to prevent the tape from being rolled up by pulling out the tape.

The tape pull-out arm is provided so as to be able to reciprocate in parallel with the moving direction of the chain, and
Since the auxiliary roller is pivotally supported on a bracket rotatably provided on the support shaft of the tape guide roller, the auxiliary roller is retracted when retracting the tape withdrawal arm and winding the extracted tape around the object to be bound. The binding tape placed on the binding tape by the weight of the auxiliary roller via the bracket and wound around the binding tape is guided by the auxiliary roller, thereby preventing the binding tape from meandering.

Next, since a tape pressing member for vertically pressing a portion of the binding tape wound around the binding object is provided so as to be movable up and down, the binding tape portion of the bound binding object is moved up and down. It becomes possible to perform pressure bonding so as to be sandwiched by the tape pressing member from the direction, and it becomes possible to attach the binding tape wound around the binding object to the surface of the binding object.

[0014]

An embodiment of the present invention will be described below.
In FIG. 1, an endless chain 3 is hung on a sprocket 2 provided on a frame 1, and a number of buckets 17, which will be described later, are mounted on the endless chain 3. Objects to be tied on the bucket 17 are arrows. Is transported in the direction of. Air jet nozzles 18 and 19 connected to a high-pressure blower 21 via a duct 20 in this order from the upstream side in the conveying direction are provided vertically above and below the conveying path, and air jetted from the air jet nozzles 18 and 19 is provided. Thus, the binding tape is reliably adhered by removing the moisture in the binding tape wound portion of the binding object on which the binding tape is wound, and then the lower binding head, which is already known, is used. The upper binding head 7 and the upper binding head 8 are provided so as to be separated from each other so as to sandwich the transport path, and are configured to cut the end of the binding tape wound around the binding object by pressing, and then to bind the binding object. An object presser 9 for pressing and holding the sheet against the bucket 17 and a tape crimping member 12 for pressing a binding tape wound around the object to be bound are provided above the transport path.

Further, there is provided a spatula sticking unit 13 which will be described after having a tape crimping member 22 which is located below the conveying path in opposition to the tape crimping member 12. Reference numeral 14 denotes a tape pull-out arm, which will be described later, and is provided so as to be able to reciprocate by a cylinder 23 in parallel to the moving direction of the chain 3. The tape 15 is rotatably supported on a tape reel having no back tension mechanism, and a roller 25 provided at the tip of an arm 16 rotatably provided in place of the back tension mechanism always has a tape 25 by a spring 24.
The end of the binding tape 6 is gripped by the lower binding head 7 so as to apply an appropriate tension to the binding tape 6 pulled out across the transport path.

The object-to-be-tied press 9 and the tape crimping member 12 are supported by a support member 27 via a connecting rod 28. 12 can be raised and lowered at the same time. 29 is a guide bar. The chain 3 is driven by a belt 32 wrapped around a pulley 31 provided on the power unit 30 and a pulley 33 fixed to the shaft of the sprocket 2, and the power of the power unit 30 is transmitted to the pulley 33.

Next, the tape pull-out arm 14 will be described in more detail with reference to FIGS. 2 and 3. A shaft 35 is provided at the tip of the tape pull-out arm 14 at a substantially right angle. A roller 34 is supported, and the shaft 35
Brackets 36 on both sides so as to sandwich the roller 34
Is rotatably provided, and an auxiliary roller 37 is supported by a shaft 38 at the end of the bracket 36. A stopper is provided on the bracket 36 to prevent the bracket 36 from jumping up, so that the auxiliary roller 37 does not rise more than necessary (above the roller 34). Further, a static elimination sheet (for example, Sandalon SS-N (trade name) manufactured by Nippon Silk Wool Dyeing Co., Ltd.) is wrapped around the surfaces of the roller 34 and the auxiliary roller 37 to remove static electricity and prevent tape from escaping. As described above, the auxiliary roller 34 may be a roller with a flange to more reliably guide the tape.

In FIG. 6, the base end of the tape pull-out arm 14 is supported via a mounting member 42 provided on a slider 40 that slides along a rail 39 fixed to the frame 1. 14 is bent in a U-shape so as not to interfere with the binding object presser 9 provided above the bucket 17, and the tape guide roller 34 shown in FIG. A roller 37 is mounted, and the bucket 17 is driven by the tape guide roller 34 and the auxiliary roller 37.
The binding tape 6 that is pulled out across the transport path is guided by utilizing the gap between the comrades.
The slider 40 is connected to the rod 43 of the cylinder 23, so that the tape pull-out arm 14 can be reciprocated along the rail 39. 44 is a cylinder
It is a stopper for regulating the stroke of 23 and determining the amount of the bundled tape 6 pulled out by the tape pull-out arm 14.

Next, the sticking unit 13 will be described with reference to FIG. The tape crimping member 22 is configured by adhering a pressing member 46 made of a soft member such as sponge to a bottom plate 45 that is gently bent in a U shape, and the bottom plate 45 is fixed to a base 47. A bracket 48 is fixed to one end of the bottom plate 45, and a link 49 bent substantially in an L-shape is provided on the bracket 48 so as to be rotatable around the pin P1. Is provided with a vera sticking arm 50 rotatably via a pin P3. A cylinder 52 for pivoting the link 49 is provided on the bracket 48 so as to be swingable, and a tip of a rod of the cylinder 52 is connected to the link 49 by a pin P2.

A tension spring 54 is provided between the link 49 and the sticking arm 50, and the elastic force of the spring 54 causes the sticking arm 50 to always rotate toward the link 49 around the pin P3. Is given. Further, a stopper 53 for restraining the rotation of the sticker sticking arm 50 is fixed to the link 49. Reference numeral 51 denotes a wrench sticking roller provided at the tip of the wrench sticking arm 50.

A rod 60 and a guide bar 61 of a cylinder 59 are fixed to the base 47. The cylinder 59 is supported by brackets 58 attached to members 56 and 57 fixed to the frame 55. Thus, the tape crimping member 22, the link 49, and the sticking arm 50 are moved up and down together by the cylinder 59. The tape crimping member 22 and the link 49 and the sticking arm 50 of the sticking unit 13 are shown in FIG.
, That is, the bucket 17 is disposed so as to be in the same positional relationship as the binding tape 6, and the tape crimping member 12 is disposed to face the tape crimping member 22 of the stapling unit 13. I have.

Next, referring to FIG. 5 and FIG.
Will be described. Bucket 17 has bolt 70 on chain 3
With two bases 62 and 63 mounted in
A vertical front wall 67 is formed, and a front mounting plate 64 that is bent at a predetermined angle and is inclined is fixed, and a base wall 63 is formed with a stopper wall 68 that is inclined toward the front mounting plate 64. A plurality of rear mounting plates 66 which are bent at a predetermined angle and inclined are fixed. Further, a rear stopper 69 inclined toward the rear mounting plate 66 is fixed to the base 63 at the rearmost portion of the rear mounting plate 66.
The bucket 17 is attached to the endless chain 3 with a predetermined gap C so that the binding tape 6 shown in FIG. 6 can pass therethrough. Further, the front mounting plate 64 is provided with claws 65 for locking the edge of the binding object W.

The operation of the present embodiment having the above-described structure will be described below. First, as shown in FIG. 8, the object W to be tied has a front mounting plate 64 and a rear mounting plate inclined at a predetermined angle.
It is put on 66. This work is performed manually, but the front mounting plate 64 and the rear mounting plate 66 are inclined,
In addition, since the stopper wall 68 and the rear stopper 69 are provided, the object W to be tied is simply slipped on the front mounting plate 64 and the rear mounting plate 66 so that the object W is slipped and shifted. Be aligned in a certain posture.

The high-pressure blower 21 is driven (or may be constantly driven) when the material W to be bound placed and transported on the bucket 17 reaches the air ejection nozzles 18 and 19 in this manner. Thus, high-pressure air is ejected from the air ejection nozzles 18 and 19 to remove moisture from the portion of the object W to which the tape is attached. In particular, frozen products are effective because they condense on the surface of the pack during binding.

After the predetermined portion of the material to be bound W has been removed, the material to be bound W is continuously conveyed and the leading end 12 of the material to be bound W (see FIG. 9) is moved to a predetermined position on the tape guide roller 34. The sensor detects that approaching
Is driven, and the tape pull-out arm 14 moves forward in parallel with the movement of the chain 3. As a result, the binding tape 6 pulled out by the tape guide roller 34 does not hit the leading end 12 of the binding object W, so that it is possible to prevent the leading end 12 of the binding object W from being rolled up by the binding tape 6. Also,
The auxiliary roller 37 is supported by a bracket 36 that is rotatably provided as shown in FIG.
Due to its own weight, it can be positioned vertically below,
It is possible to prevent the pulling out of the binding tape 6 from being affected.

At this time, the tension of the binding tape 6 is provided by a roller 25 constantly pressed against the outer periphery of the tape 15. The pressing force of the roller 15 is
Since the elastic force of the tension spring 24 is weakened in inverse proportion to the rotational torque at the time of pulling out the binding tape 6 which changes with the decrease in the diameter of the binding tape 6, the tension of the pulled out binding tape 6 is always kept constant.

The amount of the binding tape 6 pulled out at this time is shown in FIG.
Is a length close to the width L of the binding object W shown in FIG. The pulling amount of the binding tape 6 is adjusted by the stopper 44 (FIG. 6).
This is performed by restricting the stroke amount of the cylinder 23 according to FIG. Further, the width L of the binding object W is
Are aligned in a fixed posture by the bucket 17, so that accuracy is improved.

In this way, the movement of the chain 3 is stopped by detecting that the binding tape 6 has been pulled out to the predetermined length by the stopper 44, and the cylinder 23
Rod 43 is retracted, and the tape pull-out arm 14 is retracted. With the retraction of the tape pull-out arm 14, the auxiliary roller 34
The bracket 36 is rotated to be lifted by the binding tape 6 drawn out to a predetermined length, and guided while regulating the deflection of the binding tape 6 under the weight of the auxiliary roller 34 'as shown in FIG. It becomes possible to do. As a result, the binding tape 6 is prevented from meandering, and as shown in FIG.

By winding the binding tape 6 at a predetermined position on the material W to be bound in this way, the winding end of the binding tape 6 is not displaced, and the winding end of the binding tape 6 is The binding heads 7 and 8 securely press and cut. When this step is completed, the chain 3 starts to move, conveys the material W to be bound, and stops when it reaches the position of the tape pressing member 12. At this time, the subsequent binding object W has reached the position of the binding object presser 9.

When the object W on which the binding tape 6 is wound in the above step reaches the position of the tape crimping member 12 and stops, the cylinder 26 operates to lower the tape crimping member 12 and at the same time the cylinder 59 (FIG. 4). ) Also works and the sticker unit 13
Rises. Since the tape crimping members 12 and 22 are provided to oppose each other so as to press the binding tape 6 wound around the binding object W, the tape crimping members 12 and 22 are attached to the binding tape 6 wound around the binding object W. The portion can be pressed from above and below by the tape pressing members 12 and 22, so that the binding tape 6 can be securely adhered to the surface of the binding object W.

On the other hand, the link 49 and the sticking arm 50 are fixed to the common base 47 with the tape crimping member 22, so that the sticking roller is pushed up from below the sticker 71 shown in FIG. The link 49 is pulled toward the binding object W shown in FIG. As a result, the wrench pasting roller 51 rides on the object W to be pressed while pressing the wrench 71 while rotating the wrench pasting arm 50 around the pin P3 against the elastic force of the spring 54. Thereby, the wrench 71 is bent like a 71 'and stuck on the binding tape 6 wound around the binding object W, and the wrench 71 can be processed at the same time. In this way, the binding of the binding objects W is all completed.

[0032]

As described above in detail, according to the present invention, the tape pull-out arm is provided so as to be reciprocally movable in parallel with the moving direction of the chain for carrying the objects to be tied on a number of buckets provided on the endless chain. Since the tape guide roller is rotatably provided at the end of the tape pull-out arm, pulling out the binding tape is performed by advancing the tape pull-out arm and being pulled out by the tape guide roller. It is not rolled up by pulling out the binding tape.

The tape pull-out arm is provided so as to reciprocate in parallel with the moving direction of the chain, and
Since the auxiliary roller is pivotally supported on a bracket rotatably provided on the support shaft of the tape guide roller, the auxiliary roller is retracted when retracting the tape withdrawal arm and winding the extracted tape around the object to be bound. The binding tape placed on the binding tape by the weight of the auxiliary roller via the bracket and wound around the binding tape can be guided by the auxiliary roller to prevent the binding tape from meandering.

Further, since a tape pressing member for pressing the portion of the binding tape wound on the binding object from above and below is provided so as to be vertically movable, the binding tape portion of the binding object to be bound can be moved in the vertical direction. Thus, it is possible to perform pressure bonding so as to be sandwiched by the tape pressing member, and the binding tape wound around the binding object can be securely adhered to the surface of the binding object.

In this way, it is possible to prevent the edges of the binding object from being turned up, prevent the binding tape from meandering without back tension, and securely attach the binding tape to the surface of the binding object. Therefore, it is possible to obtain a binding device that can shift the vacuum-packed bags and bind them, eliminate the use of wraps and trays, and deal with pollution.

[Brief description of the drawings]

FIG. 1 is an overall side view of a binding device showing one embodiment of the present invention.

FIG. 2 is a partial longitudinal sectional view showing, in an enlarged manner, a tip end of a tape pull-out arm in FIG.

FIG. 3 is a left side view of FIG. 2 showing an operation state of a guide roller and an auxiliary roller of FIG. 2;

FIG. 4 is an enlarged side view of the vera sticking unit in FIG. 1;

FIG. 5 is an enlarged side view of the bucket in FIG. 1;

FIG. 6 is a perspective view of a portion for holding a material to be bound in FIG. 1;

FIG. 7 is a perspective view of a bucket part in FIG. 1;

FIG. 8 is a side view showing a state where an object to be bound is placed on the bucket in FIG. 1;

FIG. 9 is an explanatory diagram showing a state in which objects to be bound are shifted and bound.

FIG. 10 is a plan view of FIG. 9;

FIG. 11 is a side view showing the whole of a conventional binding device.

[Description of sign]

 1 Frame 2 Sprocket 3 Chain 6 Binding tape 7 Lower binding head 8 Upper binding head 12 Tape crimping member 14 Tape pull-out arm 15 Tape 17 Bucket 22 Tape crimping member 34 Tape guide roller 35 shaft 36 Bracket 37 Auxiliary roller

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65B 27/08 B65B 13/04 B65B 13/18 B65B 27/00-27/06 H01B 13/00 B65B 27 / 10-27/12

Claims (1)

(57) [Claims] 1. A method in which an object to be bound is placed and transported on a number of buckets provided on an endless chain, a binding tape is wound around the object to be bound, and a binding tape end is crimped by upper and lower binding heads and then cut. In the binding device described above, a tape pull-out arm is provided so as to be reciprocable in parallel with the movement direction of the chain, a tape guide roller is rotatably provided at the tip of the tape pull-out arm, and the tape guide roller is turned around a support shaft of the tape guide roller. A bracket is movably provided, an auxiliary roller is pivotally supported on the bracket, and a tape crimping member for vertically pressing a portion of the binding tape wound on the binding object is provided so as to be vertically movable. Binding unit.