JPH0327925Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a binding machine that wraps a string around objects to be bound and binds them, and after tying, moves the knot formed on the lower surface of the objects to the side. Regarding.

(Prior Art) Usually, a knot forming mechanism is provided under a table on which objects to be tied are placed, so that the knot is formed on the lower surface of the objects to be tied. As a result, the objects to be tied do not sit well and are unstable after being tied, and when stacked, such instability becomes even more pronounced, and the positions of the objects to be tied are damaged. In order to overcome such shortcomings, the special public
A device for moving the lower knot laterally after tying, as seen in Japanese Patent No. 3681, was also developed, but it had the following drawbacks.

(Problem to be solved by the invention) In conventional tying machines that move the knot to the side of the object to be bound, the lower part of the string around the object to be bound is sandwiched between a pair of members, and the conveyor is moved in this state. The device is driven to move the lower knot laterally, so the conventional structure requires a conveyor that passes through the tying machine, and the knot is moved laterally by the slip between the conveyor belt and the object to be tied. There was a problem that there were cases where it was impossible to move.

The purpose of the present invention is to solve the above-mentioned problems of the prior art, and to provide a tying machine that can reliably move a knot made on the lower surface of an object to the side.

(Means for Solving the Problems) The tying machine according to the present invention is characterized by an arm which is pivotally fixed to the underside of the objects to be bound on a table on which the objects are placed, and which is provided along the arm. The movable member includes a movable member, and a string passing through the lower surface of the object to be bound is held between the rising part of one end of the arm and the end of the movable member, and the movable member is moved forward and backward from the rising part of the arm. It includes an actuation device and a device for rotating the arm about its pivot point.

(Operation of the above means) After the binding is completed, the movable member is moved forward by the actuating device to sandwich the string between the movable member and the rising portion of the arm,
In addition, the arm is pivoted by the operation of the rotation device, and the end of the arm that clamps the string is moved in the direction in which the string is wound, thereby shifting the knot to the side of the object to be tied. Then, the space between the movable member and the upright portion is opened to release the string, and the arm is rotated to its original position, waiting for the next binding.

(Example) The figure shows an example of a binding machine according to the present invention, in which 1 is a stringing arm that swings up and down, 2 is a table on which objects to be bound are placed, and a table is placed under the table 2. is equipped with a knot forming mechanism 3. The mechanism 3 includes a beak 3a for tying a knot, a string presser 3b for pressing the end of the string, an insertion rod 3c for drawing the string to the beak, and a string hooking bar 3 for hooking the string to the string presser.
It consists of d, etc. A main shaft 4 is rotated by a drive motor 5. The lacing arm 1 and the knot forming mechanism 3 are actuated via the main shaft 4 in order to operate at scheduled timings. 6 is a clutch pedal, and 7 is a string guide.

A feature of this binding machine is that it is equipped with a mechanism 10 for laterally moving the knot formed on the lower surface of the object to be bound.As shown in FIGS. An arm 11 that is pivoted with a pin or the like to the lower side of the object to be bound placed on it, for example, the lower surface of the table 2 as shown in the figure, and a member 12 that is movably provided above the arm along the arm.
advancing the member 12 along the axis of the arm 11;
The retracting actuator, preferably the rotary actuator 13 and the arm 11, are connected to its pivot point 14.
It is composed of a device 15 that rotates around .

The arm 11 is arranged approximately at right angles to the string S hung on the object to be bound, and its tip is bent upward to form a rising portion 16. Arm 1
1 rising portion 16 and the movable member 12 adjacent to it
When the movable member 12 moves forward with respect to the rising portion 16, the string S passes between the end portion 12a of the table 2 and the end portion 12a of the table 2, and as shown in FIGS. to hold. 17 is a guide for the movable member 12 and is fixed to the arm 11.

The movable member 12 has a slot 18 along its length, as shown in FIG.
accept. Further, the movable member 12 has a long hole 19 at a wide end 12b opposite to the end 12a, and an eccentric shaft 20 attached to the actuator 13 is received therein.

The rotation device 15 is configured to be interlocked with the main shaft 4, and in this embodiment, as shown in FIG.
and a cam follower 23 provided on a link 22 connected to the other end of the arm 11, that is, the end opposite to the rising portion 16. The link 22 is pivoted at one end 22a and has a notch 22b at the other end.
is provided, and the arm 11 is connected to the arm 11 via a pin 24 that engages therein and a bracket 25 that supports the pin.
connected to. 26 is a return spring for the link 22.

Objects to be bound A sent onto table 2 during operation
When the string is wrapped around the string arm 1, the second
As shown in the drawings and FIG. 6, a string S passes between the rising portion 16 of the arm 11 and the end portion 12a of the movable member. Next, the knot forming mechanism 3 forms a knot 30 on the lower surface of the object as shown in FIG.
The cord is cut with a cutter. At the same time or immediately after that, the movable member 12 is moved forward by actuation of the actuator 13, and the string is held between the rising portion 16 and the end portion 12a of the movable member. Next, due to the engagement of the cam 21 and the cam follower 23, the link 2
2 and bracket 25, the arm 11 is rotated around the pivot point 14 as shown by the arrow a in FIG. Knot 3 on the underside of an object
0 to the side 30'. After moving, the movable member 12 is moved back to release the string, and the arm 11 is rotated to its original position. If the objects to be bound are lightweight or for other reasons the objects to be bound also move due to movement of the string, a stopper or the like may be provided to temporarily hold down the objects to be bound.

In the above embodiment, the movable member 12 moves forward and backward with respect to the rising portion 16 of the arm 11, but the arm 11 may move forward and backward with respect to the member 12 in the opposite manner. Furthermore, the movable member 12 is moved forward and backward by a rotary actuator, the elongated hole 19, and the eccentric shaft 20, which has the advantage of being lightweight and compact. A device can also be used.

The rotation device 15 is composed of a cam 21 and a cam follower 23, and has the advantage that it does not require an actuator for this purpose and can be constructed compactly. It can also be composed of

(Effects of the invention) As described above, according to the invention, the lower knot is moved laterally by pinching and moving a part of the string, so a conveyor is required to move the knot. The knot can be moved without any slippage between the objects to be bound and the conveyor, and therefore the knot can be reliably moved laterally.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an example of a binding machine according to the present invention, Fig. 2 is a perspective view of the main parts thereof, Fig. 3 is a plan view of the main parts, and Fig. 4 is a sectional view taken along line BB in Fig. 3. , 5th
The figure is a perspective view of one member constituting the main part, FIG. 6 is a plan view of the main part showing another state, and FIG. 7 is a side view of the object to be bound. In the figure, 1: string hanging arm, 3: knot forming mechanism, 4: main shaft, 11: pivot arm, 1
2: Movable member, 13: Actuating device, 15: Rotating device, 19: Long hole, 20: Eccentric shaft, 21: Cam, 2
2: Link, 23: Come Follower.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a tying machine that wraps a string around objects to be bound using a string hooking arm and ties the strings using a knot forming mechanism, there is a device attached to the underside of the objects to be tied on a table. The device includes a stopped arm and a movable member provided on the arm, a string passing through the lower surface of the object to be bound is sandwiched between a rising portion of the arm and the movable member, and the movable member or an actuating device that moves one of the rising portions forward and backward relative to the other, and a device that rotates the arm about its pivot point in conjunction with a main shaft that transmits power to the string hanging arm and the knot forming mechanism. A binding machine comprising: (2) The binding machine according to claim 1, wherein the actuating device is attached to the arm and moves the movable member forward and backward. (3) The binding machine according to claim 2, wherein the actuating device is a rotary actuator that rotates an eccentric shaft fitted into a long hole of the movable member. (4) The binding machine according to claim 1, wherein the arm rotation device comprises a cam attached to the main shaft and a cam follower provided on a link connected to the other end of the arm.