JPH0451133Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement of a bag opening tying device used for tying the opening of a bag filled with bulk materials such as powder or granules.

(Prior Art) Conventionally, bags filled with bulk materials such as powder and granules are often tied together at the bag opening with aluminum clips or the like to form a so-called kinchaku bag.

For such binding, for example, a bag opening binding device 50 shown in FIG. 15 has been used.

This consists of a main body 51 that is supported by a suitable support or by hand, a gate 52 that is rotatably provided on the main body 51 and can hold the bag opening B of the bag A to be bound in a completely squeezed state, and a gate 52 that is provided on the main body 51. A clip holder 53 that accommodates a clip C having a substantially U-shape, a punch 54 provided on the main body 51 and capable of fitting the clip C of the clip holder 53 into the bag opening B in a completely squeezed state; Get punch cylinder 55
and a die 56 that can make a clip C, which is provided on the main body 51 and fitted onto the bag opening B, into an annular shape between it and the punch 54.

Such a bag opening tying device 50 is constructed by manually tightening the bag opening B of a bag A filled with loose items completely beforehand, and then inserting the bag between a main body 51 and a gate 52 into the gate 52. is clamped by closing as shown by the chain line in FIG.

Next, the punch 54 is punched by the punch cylinder 55.
is activated to push the lowest clip C housed in the clip holder 53 so that it fits into the bag opening B which is in a completely squeezed state, and then the clip C is deformed into an annular shape by the pressing action of the punch 54 and the die 56. Bind the bag opening B using the same clip C.

In other words, the bag opening binding device 50 has a structure substantially similar to that of a stapler (commonly called a stapler).

However, the conventional bag opening tying device has the disadvantage that the bag opening must be completely squeezed manually before tying, which requires a lot of effort and time and has very low work efficiency.

(Problems that the invention attempts to solve) This invention was created in view of the problems mentioned above and to solve them, and its purpose is to:
To provide a bag opening tying device which does not take much time and effort in tying and improves work efficiency.

(Means for Solving the Problems) The bag opening tying device of the present invention includes a base body, a single movable body supported by the base body and capable of approaching and approaching the bags to be bound, and a movable body provided on the movable body to a pair of guide bars that can gradually pinch the bag opening to make it narrow as the bag approaches the bag, and a squeezing arm that is rotatably provided on the movable body and can make the narrow bag opening half squeezed. A gate that is rotatably provided on the movable body and can change the opening of a bag from a partially squeezed state to a fully squeezed state; a clip holder that is provided on the movable body and accommodates a clip that is approximately U-shaped; Consisting of a punch that is provided so that the clip of the clip holder can be externally fitted onto the bag opening in a safely squeezed state, and a die that is provided on the movable body and that can make the clip that is externally fitted onto the bag opening into an annular shape between the punch and the punch. There are characteristics in what you do.

(Function) The bag to be bound is held by a holder such as a hook so that the bag mouth is open, and loose items are stuffed inside the bag.

By moving the movable body relative to the base body, the movable body is brought closer to the bag to be bound.

As the movable body approaches the bag to be bound, the bag opening is gradually pinched by the pair of guide bars, resulting in a narrow state.

When the bag opening becomes narrow, the opening arm is rotated relative to the movable body, so that the opening of the bag is gradually narrowed to a semi-squeezed state.

When the bag opening is in a partially squeezed state, the gate is rotated relative to the movable body, so that the bag mouth is further narrowed and becomes a fully squeezed state.

When the bag opening is fully squeezed, the punch moves relative to the movable body, and the approximately U-shaped clip housed in the clip holder is pushed and fitted onto the fully squeezed bag opening. The clip is deformed into an annular shape by the pressing action of the moving punch and die.

Therefore, a bag filled with loose items is tied at its opening with a clip to form a so-called kinchaku bag.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 is a plan view showing the general structure of a bag opening binding device according to an embodiment of the present invention. FIG. 2 is a perspective view with some parts omitted. 3 to 10 are front views taken along lines a to h in FIG. 1, showing the process of narrowing the bag opening. 1st
FIG. 1 is a perspective view showing a bag to be bound filled with loose items.
FIGS. 12 to 14 are plan views showing the bag opening in a narrow state, a half-squeezed state, and a fully squeezed state, respectively.

The main parts of the bag opening binding device 1 include a base body 2, a movable body 3, a guide bar 4, a squeeze arm 5, a gate 6, a clip holder 7, a punch 8, and a die 9.

The base body 2 has a predetermined height and is fixed at an installation location.

The movable body 3 is supported by the base body 2 and is movable toward and near the bag A to be bound.

In this example, the rear part of the base body 2 is rotatably pivoted to the upper part of the base body 2, and the front part of the base body 2 is movable toward and away from the bag to be bound A located near the base body 2.

Therefore, between the base body 2 and the movable body 3, the base body 2
Movable cylinder 1 for rotating the movable body 3 against
0 is inserted.

The guide bars 4 are a pair of guide bars that are provided on the movable body 3 and can gradually pinch the opening B of the bag A as it approaches the bag A to narrow the width of the bag.

In this example, each proximal end is fixed to the front upper surface of the movable body 3, and each tip gradually expands toward the bag A to be tied, so that it has a substantially V-shaped plan view. ing.

The diaphragm arm 5 is rotatably provided on the movable body 3 and can bring the narrow bag opening B into a semi-squeezed state.

In this example, there is an arm plate 11 whose base is rotatably pivoted to the front part of the movable body 3, and an arm plate 11 whose lower base end is curved in plan and has a substantially U-shape from the front.
1 and an arm rod 12 fixed to the guide bar 1, and is arranged below the guide bar 4 so as not to interfere with it.

Therefore, between the movable body 3 and the arm plate 11,
An arm cylinder 13 is interposed to rotate the arm plate 11 relative to the movable body 3.

The gate 6 is rotatably provided on the movable body 3 and can bring the bag opening B, which is in a partially squeezed state, into a fully squeezed state.

In this example, the aperture arm 5 has a substantially U-shaped cross section.
Its base end is rotatably connected to the movable body 3 located further back, and is arranged so as not to interfere with the lower side of the guide bar 4. It is designed so that it does not pass through and interfere with this.

A gate cylinder 14 is interposed between the movable body 3 and the gate 6 to rotate the gate 6 relative to the movable body 3.

The clip holder 7 is provided on the movable body 3 and accommodates a clip C having a substantially U shape.

In this example, the movable body 3 is installed upright near the gate 6, and like the conventional one, a large number of clips C are accommodated in a stacked state inside the movable body 3.
When the lowest clip C is sent out, the remaining clips descend and are sent out one by one.

The punch 8 is movably provided on the movable body 3 and is capable of fitting the clip C of the clip holder 7 onto the bag opening B in a completely squeezed state.

In this example, the tip is formed into a semicircular concave portion in accordance with the curved portion of the clip C, and is provided on the movable body 3 so as to be movable from the lower rear side to the front side of the clip holder 7. The lowest clip C housed in the clip C is then pushed forward in a horizontal state, and the movable body 3 and the gate 6 are provided with guide grooves 15 for guiding the clip C to the horizontal body. is formed.

A punch cylinder 16 is interposed between the movable body 3 and the punch 8 to move the punch 8 with respect to the movable body 3.

The die 9 is capable of making a clip C, which is provided on the movable body 3 and fitted onto the bag opening B, into an annular shape between it and the punch 8.

In this example, the part fixed to the front part of the movable body 3 and facing the punch 8 is made into a semicircular concave part, and both free ends of the clip C pushed by the punch 8 are gradually moved inward. By deforming it, it is made into a ring shape.

As shown in FIG. 11, the bag A to be tied is held by a holder 17 such as a hook so that the bag opening B is open, and loose items are stuffed inside the bag A, and the bag A is held in a container 1.
It is placed on 8.

Next, the operation will be explained based on such a configuration.

As shown in FIG. 11, the bag A to be tied is filled with loose materials and held by a holder 17, and is sent to the vicinity of the base 2 while being placed on a tray 18.

When the bags A to be tied reach the vicinity of the base body 2, the movable body 3 is pivoted from the state shown in FIG. 1 to the state shown in FIG. 12 by the operation of the movable cylinder 10.

When the movable body 3 is rotated, its front portion approaches the bag A to be tied as shown by the arrow in FIG. As shown in the figure, it is gradually sandwiched between a pair of guide bars 4 and becomes narrow as shown in FIGS. 10 and 12.

When bag mouth B becomes narrow, arm cylinder 1
3, the aperture arm 5 is pivoted from the state shown in FIG. 12 to the state shown in FIG.

When the aperture arm 5 is rotated, the narrow bag mouth B is gradually constricted to a semi-restricted state as shown in FIG. 13.

When the bag mouth B is in a half-restricted state, the gate 6 is pivoted from the state shown in FIG. 13 to the state shown in FIG. 14 by the operation of the gate cylinder 14.

When the gate 6 is rotated, the bag opening B is in a half-restricted state.
is further narrowed down to a completely narrowed state as shown in FIG.

When the bag opening B is completely squeezed, the punch 8 is moved toward the die 9 by the operation of the punch cylinder 16.

When the punch 8 moves, the lowest clip C housed in the clip holder 7 is pushed and moved in a horizontal state by the guide groove 15, and after it is externally fitted into the bag mouth B which is in a completely squeezed state. , the clip C is deformed into an annular shape by forcefully joining both free ends to the die 9.

Then, the bag opening B of the bag A to be tied is tied and closed by the annular press-formed clip C, forming a kinchak bag shape. H in Figure 10
indicates the binding height position.

After the binding is completed, return to the original position shown in Fig. 1 in the reverse order described above, and then proceed to the same sequence to tie the bag A.
The bag opening B is tied.

Although the movable body 3 is pivoted relative to the base body 2 in the previous embodiment, the movable body 3 is not limited to this, and may be positioned in a straight line relative to the base body 2, for example, to rotate relative to the bags A to be tied. It is also possible to make it look far away.

In the previous embodiment, the aperture arm 5 and the gate 6 were
They were installed at the front of the movable body 3 and near the rear, respectively.
The present invention is not limited to this, and for example, the arrangement may be reversed.

Although the clip holder 7 accommodates a large number of clips C in the previous embodiment, the clip holder 7 is not limited to this, and may accommodate a single clip C.

In the previous embodiment, the die 9 and the punch 8 were provided at the front part and the rear part of the movable body 3, respectively, but the present invention is not limited to this, and for example, they may be provided in reverse.

Although the die 9 is fixed to the movable body 3 in the previous embodiment, the die 9 is not limited to this, and may be movable toward the punch 8, for example.

In the previous embodiment, the bags A to be bound were sent to the vicinity of the base body 2 in the state shown in FIG. 11, but the present invention is not limited to this. 18, and the inside of such a bag A to be tied may be filled with loose items.

(Effects of the invention) As described above, according to the present invention, the following excellent effects can be achieved.

(1) Since it consists of a base, a movable body, a guide bar, a squeeze arm, a gate, a clip holder, a punch, and a die, it is possible to perform not only simple bundling but also tightening of the bag opening automatically without manual intervention. can.

Therefore, it is possible to save a lot of time and effort in bundling, and to improve work efficiency.

(2) A guide bar, a squeeze arm, a gate, a clip holder, a punch, and a die are installed on the movable body that is supported by the base and can approach and approach the bags to be tied.
Bag openings can be narrowed and tied without moving the bags to be tied.

Therefore, extremely accurate and reliable narrowing and binding can be performed.

(3) The bag opening is made to be narrowed by the guide bar, semi-squeezed by the squeezing arm, and fully squeezed by the gate, allowing for smooth and effortless squeezing.

Therefore, the bags to be tied will not be damaged.

(4) Since the bag opening is made narrow by utilizing the distance movement of the movable body relative to the bags to be tied, it is sufficient to simply provide a guide bar on the movable body, and the bag opening can be made narrow. Special actuation means can be omitted.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the general structure of a bag opening binding device according to an embodiment of the present invention. FIG. 2 is a perspective view with some parts omitted. 3 to 10 are front views taken along lines a to h in FIG. 1, showing the process of narrowing the bag opening. 1st
FIG. 1 is a perspective view showing a bag to be bound filled with loose items.
FIG. 12 to FIG. 14 are plan views showing the bag opening in a narrow state, a half-squeezed state, and a fully squeezed state, respectively. 15th
The figure is a plan view showing the general structure of a conventional bag opening binding device. DESCRIPTION OF SYMBOLS 1... Bag opening binding device, 2... Base body, 3... Movable body, 4... Guide bar, 5... Squeezing arm, 6...
...Gate, 7...Clip holder, 8...Punch, 9...Die.

Claims (1)

[Scope of utility model registration request] A base body, a single movable body supported by the base body and capable of approaching and approaching the bag to be bound, and a pair of movable bodies that are provided on the movable body and can gradually pinch the opening of the bag as it approaches the bag to be bound to make it narrower. a guide bar, a squeezing arm that is rotatably provided on the movable body and can bring a narrow bag opening into a semi-squeezed state, and a gate that is provided on the movable body and can change a half-squeezed bag mouth to a fully squeezed state. a clip holder provided on the movable body and housing a clip having a substantially U-shape; a punch movably provided on the movable body and capable of fitting the clip of the clip holder into the mouth of the bag in a safely squeezed state; A bag opening binding device comprising: a die capable of forming an annular shape between a punch and a clip provided on the body and fitted over the bag opening.