JPS59199404A - Bundling device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is a binding device that uses tape to bind comparatively long and narrow objects such as vegetables and other agricultural products, industrial materials, or the openings of bags containing objects. Regarding.

(Prior art) This type of device generally has a binding arm pivotably attached to a base having a rotatable tape reel, and is pulled out from the tape reel by tilting the binding arm. The tape is wound around an object to be bound, and the winding end is bound to the tape end on the tape holder. When tying, first, when the tying arm is raised, the object to be bound is applied from the outside to the tape extending along the tilting trajectory of the tip of the tying arm, and the tape is pushed down toward the base to bind the object. It is necessary to insert the tape between the binding arm and the base. However, in conventional devices, when inserting objects to be bound and raising the binding arm, as mentioned above, the tape is inserted between the tip of the binding arm and the base. The tape stretches along its trajectory, and therefore, before the object to be bound, which is applied to the tape, reaches the base, the tape must be displaced considerably from its initial position; It is necessary to rotate the tape reel in the rewinding direction.

By the way, if the tape reel is in a state where it can rotate completely freely, if objects to be bound are suddenly inserted, the tape reel rotates due to the tension of the tape applied at the time of insertion, and the objects to be bound will be placed on it. Even after the tape reaches the mounting table and the tape is no longer under tension, if it continues to rotate for a certain period of time due to inertial force, the tape will become unwound and become loose. Therefore, such a mounting unit is provided with a braking means for braking the rotation of the tape reel to some extent. Therefore, when the binding arm is raised, the tape reel is not in a state where it can rotate freely, and in order to insert the object to be bound, a force sufficient to overcome the braking force applied to the tape reel is required. become.

Furthermore, if adhesive tape is used as the tape,
The tape wound on the tape reel adheres to each other,
Therefore, in order to unwind the tape (when inserting the object to be bound), a force sufficient to overcome the adhesive force is required.

When inserting the articles to be bound, a force that overcomes the above-mentioned braking force and a force that overcomes the adhesive force are required. Therefore, as mentioned above, even if the rotation angle or number of rotations of the tape reel is large, it is not a big burden when the number of times of tying is small, but from the standpoint of tying quickly and easily in large quantities, it is difficult for the operator to do so. This results in a considerable burden.

Furthermore, when tying work is in a hurry, it is difficult to insert the objects to be bound in such a way as to prevent the objects from swaying sideways and to prevent the twisting tape from meandering. Because the distance to the table is long, it is difficult to suppress the horizontal movement of the objects to be bound, and therefore the two tapes on the top and bottom of the objects are bound in a shifted state. Become.

However, if the items to be bound are placed on the side away from the tape holder on the mounting table, the gap between the overlapping part of the tape and the winding part of the tape wound around the items after binding will be removed. The tapes will not adhere to each other and will therefore be loosely wound and tied together. Therefore, it is preferable that the objects to be bound be placed on the tape holder side on the mounting table, but in the above conventional example, the objects to be bound are inserted from diagonally above the mounting table, so the objects are placed on the tape holder side. It was difficult to position.

(Object of the Invention) An object of the present invention is to provide a binding device that has low insertion resistance of objects to be bound and can accurately position tapes.

(Structure of the Invention) The present invention has a binding arm pivotably mounted on a base so that it can be raised and lowered, and the tape pulled out from a rotatable tape reel is wound around an object by the tilting operation of the binding arm. In a binding device that binds the wound end to the tape end on a tape holder, the tape located between the tip of the binding arm and the tape holder is inserted between the base and the binding arm. By providing tape positioning means for displacing the tape in the direction, the insertion distance of the objects to be bound is shortened, the insertion resistance of the objects to be bound is reduced, and the tapes are prevented from shifting from each other during binding. .

(Embodiment) The present invention will be described below with reference to the embodiment shown in the drawings. As shown in FIG.
), a tape reel (3) and a tape holder (4) located on one of both sides of this binding arm (2) are installed. (1) a and a support plate (1) b erected on the support plate (1) b.
The binding arm (2) is rotatably supported on the support plate (1)b, and the tape (5) from the tape reel (3) is rotatably held on the support plate (1)b. Guide rollers (Nijiia, (2)h,
(2) The binding arm (2) by being wrapped around c.
It is stretched across the longitudinal plane 1C.

The above holder (4)! qt, when the binding arm (2) is lowered (
position shown by the two-dot chain line), and is installed at the position where the tips meet, and! 5-This holder (4) holds the tip of the tape (5) pulled out from the tip of the binding arm (2), so when the binding arm (2) is raised (position shown by the solid line), the tape (5) will extend along the undulating locus of the tip of the binding arm (2), but this portion of the tape (5) will be moved by the tape positioning means (6) described below. The object to be bound (7) is displaced in the insertion direction, that is, in the direction in which the object to be bound (7) is placed on the mounting table (8) that has been completely installed on the substrate (1) a.

The positioning means (6) is placed on the support (9) on the substrate (]) a as shown in No. 2M. The fc swing link (il) is swingably supported via the shaft (11), and the elastic member (6) made of a coil spring or the like whose base end is attached to the shaft (11). Bind arms (2) as shown
The displacement link 00 is rotatably supported on a part of the carrier 0* or the binding arm (2) via an axis a→.

An engaging pin 0■a is fixed to one end of this displacement link CJO, and the pin (1υa) is the swing link (1υa).
The notch Ql)aK formed at the tip of the elastic member (14) can be freely engaged and detached, and the tip of the elastic member (14) is attached to the retaining pin 00a.

A shock absorber (A) consisting of a plunger (LQ a and a cylinder nci b) is attached to the carrier (13), and the tip of the plunger (M a) is attached to the shaft (I4) of the displacement link 0υ. It is installed between the other end.
Not limited to cylinder types such as pneumatic and hydraulic types, but also springs,
An elastic member such as rubber may also be used.

Note that the tape reel (3) is attached to the binding arm (2) or the binding arm (
2) may be attached to the rotation axis (1η).

Next, the operation of the tying machine with the above configuration will be described. As shown in FIG. 1, when the tying arm (2) is in the position shown by the solid line, that is, when the tying arm (2) is in the upright state The tape (5) that is located between the tip of the binding arm (2) and the holder (4) and extends in the vertical direction is wrapped around the roller (to) b rotatably attached to the other end of the displacement link 0. let At this time, the engagement pin aa a at one end of the binding arm (2)
When the tape (5) is engaged with the swinging link (1υ notch ([υa), the tape (5) is displaced parallel to the surface of the mounting table (8) by being wrapped around the roller 0$b. It is now possible to do so.

After displacing the tape (5) in this way, insert the object to be bound (7) from between the tip of the binding arm (2) and the holder (4), and place it parallel to the mounting table (8). The tape that became (5)
The object to be bound (7) is placed on the mounting table (8) by pushing down the tape (5) toward the mounting table (8).

Next, when holding the upper grip part α of the binding arm (2) and rotating it counterclockwise in the drawing, the displacement link (1υ) will also move counterclockwise, and as a result, , the swing link (1]) also swings, and when it swings to a predetermined angle, the link (11) comes into contact with the strike buckle 071 fixed to the support body (9), as shown in FIG. When the binding arm (2) is further rotated from this state, the engagement pin α0a of the displacement link αυ is moved to the notch 0 of the swing link αD.
1) It will come off from a, and at the same time the elastic member @
Since the elastic force acts on one end of the displacement link (old end), the link Q$ will suddenly swing clockwise around the carrier (axis 04 of 13), as shown in the figure. The other end of the displacement link αυ separates from the tape (5), and at the same time the loosened tape (5) is rewound by the tape reel (3)r.

When the binding arm (2) is further rotated from this state, the tape (5) is gradually wound around the object to be bound (7), and the tip of the binding arm (2) is attached to the holder (4). ), that is, when the binding arm (2) is rotated to the laid down position shown by the two-dot chain line in Fig. 1, the tip of the tape (5) held by the holder (4) and the covered The tape (5) wound around the bundle (7) is pressed against each other on the holder (4). It will not be cut by a cutter.

Next, the object to be bound (7)? After taking it out, if you turn the binding arm (2) clockwise in the opposite direction to the above, the displacement link 0υ will also be excited in the same direction, and after passing through the state shown in Figure 4. , the retaining pin (10a) of the displacement link tm is pulled by the elastic member @ and the notch (11) of the swinging link (tυ)
a, and at the same time the other force arm (1) is in contact with the tape (5), and the binding arm (2)
When the swinging link (1υi-i') is rotated, it will be rotated clockwise, and as the link αυ is rotated, the displacement link α~ will also be rotated counterclockwise around the axis I+41 of the carrier d4. The tape (5
) in the direction of insertion of the objects to be bound, and reach the upright position shown in FIG.

By the way, since the binding arm (2) is normally tilted at a considerable speed, during the rising operation, the engaging pin (a) b
During the period from when the tape (5) comes into contact with the tape (5) until it reaches the state shown in Figure 1, the tape (5) is suddenly subjected to a tensile force, which may cause the tape (5) to break or the holder (4) to Therefore, it is preferable to provide the above-mentioned Shonoku Apunba α clause.

In the above description, in a preferred embodiment, the other end of the displacement link a is located at the position where the tape (5) is placed on the mounting table (8).
Although the displacement link aO is set at a position parallel to the surface, the other end of the displacement link aO is not limited to this, and it is sufficient that the other end of the displacement link aO is located at a position where the tape (5) is displaced in the direction of insertion of the object to be bound.

As described above, in the present invention, since the tape is displaced in the direction of insertion of the object to be bound by the tape positioning means,
When inserting objects to be bound, the distance to push down the tape is short, and therefore the number of rotations or rotation angle of the tape reel is small, so the insertion resistance of objects to be bound is small, and the possibility of meandering of the tape is small, which makes bundling easier. Even when tying is carried out quickly and in large quantities, it is foolish to prevent the tape from shifting between the top and bottom of the objects to be bound as much as possible during tying.
Since the insertion resistance is low, there is no burden on the operator even during long hours of tying work.

In particular, if the position of the displacement link is set so that the tape is parallel to the mounting part of the base or inclined in the direction in which the bent part of the tape approaches the base when the binding arm is raised, The objects to be bound can be inserted at a position on the tape holder side of the mounting portion, so that it is easy to place the objects to be bound on the tape holder side.

Moreover, when the tape is set parallel to the base in this way, the distance between the tape and the mounting part is shortened, so there is almost no possibility of the tape meandering, and the possibility of tape meandering is reduced. No, the insertion resistance becomes even smaller.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of the binding machine according to the present invention, Fig. 2 is a sectional view taken along line 11-II in Fig. 1, and Fig. 3 is a sectional view taken along line IJI-111 in Fig. 1. FIG. 4 is a schematic side view showing the operating state of the binding machine. (1)... Base (2)... Binding arm (3)... Tape reel (4) °... Tape holder (5)... Tape (7)... Items to be bound (etc.) 1 person) 22 figure 11 spear 3 figure

Claims (1)

[Claims] A binding arm is pivotally attached to a base so that it can be tilted up and down, and by the tilting operation of the binding arm, the tape drawn out from a rotatable tape reel is wound around the object to be bound, and the winding end is attached to a tape holder. In a binding device that binds to an upper tape end, tape positioning displaces the tape located between the tip of the binding arm and the tape holder in the insertion direction of the object to be bound between the base and the binding arm. A binding device characterized by comprising means.