JPH04339719A - Tying machine for annular object - Google Patents

Abstract

PURPOSE:To provide a tying machine which can automatically perform tying of annular objects and save labor, using a vinyl tape as a tying tape for annular objects, and by which cut chips of the tape are not generated. CONSTITUTION:For the title tying machine, a vacuum pad 9 which suction-holds around the end of a vinyl tape B, which is led along a throw-in bar 2 in which a plurality of endless belts A are thrown in, a cylinder device 7 which changes the direction and position of the vacuum pad 9, and a rotational actuator 8 are integrally combined on the top and bottom, and they move accompanying with the revolution of a feed screw 6. Under a condition in which the end of the tape B which is pulled out by the vacuum pad 9 is guided and placed on the top of an appropriate location of the tape B to make a loop, the overlapped location of the tape B is welded and cut by fusing at the same time by a heating rod 12.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tying machine mainly used for annular objects such as endless power transmission belts (hereinafter simply referred to as belts).

0002

[Prior Art] Multiple circular objects such as tapes and strings (hereinafter referred to as
When binding together with tape (simply called tape), the general method is to pass the tape through the inside of the circular object and then glue, tie, or staple the ends to form a loop. It is.

One of the binding machines that performs such binding work is
For example, there is a stapler type as shown in FIG. The binding machine has a stapler base D and a binding needle E at the tip.
It is composed of an arm G having a cutting blade F and a tape end clamp claw J, a handle H, and a tape reel C. When binding the belt A, first grasp the handle H and press the arm G against the base plate D. Then, the tape end clamp claw J at the tip of the arm G grasps the end of the tape B on the base plate D. At this point, by returning the handle H, the tape B is fed out. In the bundling operation, the belt A is thrown into the base plate D by a feeding means (not shown) or manually. By doing so, tape B is further unrolled by the required length. Then, grab the handle H and move the arm G to the base plate D.
When pressed, the staple E at the tip of the arm G stitches the tape B together, and at the same time the cutting blade F cuts the tape B, making the tape B into a loop and binding the belt A.

0004

SUMMARY OF THE INVENTION In the above-mentioned conventional binding machines, the tape used to bind the belts is often a string specifically designed for packing, such as a PP (polypropylene) liner. However, the PP liner is too stiff and there is a risk of damaging the belt A at its edge. Further, although the ends of the PP liner are bonded, there are problems such as the adhesive force being too strong and it being difficult to peel off the bonded portion. Furthermore, the PP liner tends to be cut at an angle, making it dangerous to handle. Therefore, it is recommended to use flexible vinyl tape as the binding cord, and there is a need to develop a binding machine suitable for this purpose.

By the way, in the binding machine shown in FIG.
Vinyl tape is still used today, but when binding belts with tape, cut scraps are generated, which is troublesome to dispose of.At the same time, the manual binding machine slows down automation and causes waste. time is wasted on tasks.

The present invention has been made in view of the above, and provides a binding machine that uses vinyl tape as a tape for binding circular objects, can automate the binding of circular objects, save labor, and does not produce tape cut waste. is intended to provide.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the binding machine of the present invention includes: a) a tape pull-out mechanism for binding a circular object such as an endless belt by passing a binding tape inside the belt; An annular object binding machine equipped with an adhesion/cutting mechanism, wherein: b) the tape pull-out mechanism includes a vacuum pad for sucking and gripping the vicinity of an end of the tape guided along an annular object input bar; c) a moving means for changing the direction and position of the pad, and c) the tape adhesion/cutting mechanism guides the end of the tape by the vacuum pad and overlaps it at a proper position on the tape to form a loop. , has heating means for simultaneously welding and fusing the overlapped portions of the tapes.

[0008]

[Operation] Regarding the binding machine of the present invention having the above configuration,
To explain its action along with the operating procedure, ■ Tape is pulled out from a tape reel etc. along the input bar of the annular object, the tip of the tape is held near the tip of the input bar, and it is tied in this state. Multiple circular objects to be
For example, when the tape is fed from a feeding device and placed into a feeding bar, the vacuum pad moves to approach the end of the tape and adsorb it. (2) The vacuum pad moves while adsorbing the tape and the tape is pulled out, and the annular object on the input bar is moved onto the pulled out tape. ■The direction of the vacuum pad with the tape still adsorbed is changed to the direction of the input bar by the moving means, the vacuum pad is returned to the direction of the input bar, and the vacuum pad is placed near the tip of the input bar for the tape. The ends of the tapes that are attracted to the holder are overlapped, forming a loop. (2) At the same time that the overlapping portions of the tape are welded by the heating means by the vacuum pad, the portions of the tape that are not used are fused and cut. ■On the other hand, the loop-shaped tape part that was fused becomes a bundle of belts,
Sent to the next process. After welding and fusing the tape, the vacuum pad releases the tape and completes the series of operations. Thereafter, the vacuum pad returns to the starting position and repeats the same operation as described above to continuously form a bundle of tied belts.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the binding machine of the present invention will be explained with reference to the drawings. Fig. 1 is a plan view showing the entire endless belt binding machine, Fig. 2 is a side view seen from the left side of Fig. 1, and Figs. 3(a) to 3(a).
(f) shows the sequence of the binding process by the binding machine of FIG. 1, and each figure is a partially enlarged front view of the binding machine.

As shown in FIGS. 1 and 2, a tape reel 3 is disposed on the base end side (right side in FIG. 1) of a horizontally placed input bar 2, and a tape reel 3 is disposed on the upper surface of the input bar 2. A groove 4 is formed so that the tape is pulled out from the tape reel 3. As shown in FIG. 3(a), this groove 4
is provided over the entire length up to the tip 2a, and the tip 2a
Nearby, a groove 4a is also provided on the lower side, and a groove 4a on the lower side is also provided.
a is connected to the upper groove 4 by a gap 4b.

A cylinder device 5a for discharging the belt is disposed parallel to the input bar 2, and a belt discharge member 5 attached to the tip of the piston rod is movable onto the input bar 2 as shown in FIG. and is configured to reach at least the tip 2a of the input bar 2. Also, on the opposite side of the cylinder device 5a, a feed screw 6 is provided parallel to the input bar 2.
is arranged, and the base end of this feed screw 6 is connected to the motor 6.
It is connected to a and rotates.

A cylinder device 7 for gripping the tape and a rotary actuator 8 are vertically integrated and are mounted so as to move on a linear guide 11 as the feed screw 6 rotates. The piston rod of the cylinder device 7 is attached at right angles to the feed screw 6, and a rotary actuator 8 is attached to the tip of the piston rod so that it can approach or separate from the input bar 2. A vacuum pad 9 capable of sucking the tape B is attached to the rotary actuator 8, and the vacuum pad 9 is configured to be rotated by 90 degrees.

[0013] Also, near the tip 2a of the input bar 2,
A tape presser stand 10 is movably arranged along a linear guide 11a arranged perpendicularly thereto. This holding table 10 is connected to a piston rod of a cylinder device 10a and moves to below the input bar 2.

Further, a soldering iron-shaped heating rod (heating means) 12 for welding and fusing the tape B is installed near the tip 2a of the input bar 2. This heating rod 12 is
It is attached to the tip of the piston rod of the cylinder device 12a and is moved by the cylinder device 12a.

A tape pressing mechanism 13 used for welding and fusing the tape B is arranged near the input bar 2. This tape pressing mechanism 13 includes a cylinder device 13a.
and an arm 13b, which presses the tape B with the tip of its piston rod.

Next, a binding machine 1 according to an embodiment of the above configuration will be described.
The operation of this will be explained. In FIG. 1, tape B is first pulled out from tape reel 3, and the end of tape B is inserted into groove 4.
Guide the top surface of the loading bar 2 to the tip 2a along the
The end of the tape B is made to slightly protrude from the tip 2a.

In this state, when the switch (not shown) of the binding machine 1 is turned on, a certain number of belts A are sent to the input bar 2 by a belt feeding device (not shown) as shown in FIG. 3(b). be provided. In order to bind these belts A, by retracting the piston rod of the tape gripping cylinder device 7, the vacuum pad 9 is moved downward near the tip 2a of the input bar 2, and at the same time, the rotary actuator 8 is rotated. This places the vacuum pad 9 into the groove 4a. Next, connect the feed screw 6 to the motor 6.
By rotating the vacuum pad 9 by
moves near the end of tape B.

At this time, the position of the vacuum pad 9 is as follows:
As shown in FIG. 3(b), it is located at a distance s from the tip of tape B. After the vacuum pad 9 suctions the vicinity of the end of the tape B, the vacuum pad 9 is moved to the left in the direction of arrow t while adsorbing the tape B, and the tape B is pulled out. After tape B is fully pulled out,
By operating the belt discharge cylinder device 5a and moving the belt discharge member 5 to the left along the input bar 2, the belt A on the input bar 2 is moved to the tip 2a of the input bar 2.
Insert the tape onto tape B which is being pulled out from the tape. This state is shown in FIG. 3(c).

Next, as shown in FIG. 3(d), the rotary actuator 8 is rotated to change the direction of the vacuum pad 9 from the direction shown in FIG. 3(c) to a direction facing the input bar 2.

As shown in FIG. 3(e), the cylinder device 1
0a, move the tape presser stand 10 to the tip 2a of the loading bar 2.
Move the vertical surface 10b of the base plate directly below the tip 2.
a, and the vacuum pad 9 is moved to the tip 2a of the input bar 2 by rotation of the feed screw 6. As a result, the tape B becomes a loop and its end portion is overlapped with the unused portion of the tape B. At this time, the end of the tape B attracted to the vacuum pad 9 is pressed onto the vertical surface 10b. Then, the tape pressing mechanism 13 shown in FIG. 1 presses the tape B on the input bar 2 by operating the cylinder device 13a.

Further, the heating rod 12 is moved in the direction of arrow r by the cylinder device 12a. Then, as shown in FIG. 3(f), the heating rod 12 is pressed against the overlapped portion of the tapes B to weld them together and to melt and cut that portion. After that, when the suction operation of the vacuum pad 9 is released and the vacuum pad 9 is separated from the vertical surface 10b of the base plate by rotation of the feed screw 6, the bundle of belts A bound by tape B falls and is collected. Ru. On the other hand, the vacuum pad 9 returns to its origin and the same operation is repeated.

By the way, the heating rod 12 is used to weld tape B.
As a result of experiments, it was confirmed that the following conditions are suitable for simultaneously performing fusing. That is, vinyl chloride with a thickness of 0.05 to 0.10 mm is used as the tape B, the outer diameter of the heating rod 12 is 4 to 6 mm, and the surface temperature (heating temperature) is 100±5°C. In addition, by setting the moving speed of the heating rod 12 to 11 to 13 mm/sec, tension is applied to the tape B by the heat of melting of the tape B by the heating rod 12 and the pressing force of the heating rod 12, and the tape B is reliably heated. Welding and cutting were possible. Note that if the heating temperature becomes low, the tape B will be forcibly torn off by the pressing force of the heating rod 12 rather than being fused, and welding will not be possible. Also, if the heating temperature becomes too high,
Although the tape B can be cut by fusing, the tape B may be welded to the heating rod 12 and burnt.

[0023]

[Effect of the invention] As is clear from the above explanation,
The annular object binding machine of this invention has the following effects.

[0024] Unlike conventional methods, stable binding is possible using weak vinyl tape, and its adhesive strength is relatively low (usually around 300g), so it does not damage circular objects such as endless belts. Moreover, the adhesive part of the vinyl tape can be easily separated. Moreover, a series of operations such as drawing out the tape, creating a loop, joining the ends, and separating the loop can be performed automatically, so it is possible to automate the bundling of circular objects and save labor. Furthermore, when adhering and cutting vinyl tape, there is no cut waste like in the past, so
It is also easy to process.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the entirety of an annular object binding machine according to an embodiment of the present invention.

FIG. 2 is a left side view of the binding machine of FIG. 1;

3(a) to 3(f) sequentially show the sequence of the binding process by the binding machine of FIG. 1, and each figure is an enlarged front view of a part of the binding machine.

FIG. 4 is a front view showing a conventional general binding machine.

[Explanation of symbols]

1 Binding machine 2 Insertion bar 3 Tape reel 4 groove 5 Belt discharge member 6 Feed screw 7 Cylinder device 9 Vacuum pad 12 Heating rod A Endless belt (circular object) B Vinyl tape

Claims (1)

[Claims] 1. A binding machine for circular objects, comprising a tape pulling mechanism and a tape adhesion/cutting mechanism for binding a circular object such as an endless belt by passing a binding tape inside the belt, the tape pulling mechanism comprising: has a vacuum pad that sucks and grips the vicinity of the end of the tape guided along the input bar of the annular object, and a moving means that changes the direction and position of the vacuum pad, and the tape adhesion/cutting mechanism is , a bundling of annular objects characterized by having a heating means for welding and simultaneously fusing and cutting the overlapping portions of the tapes in a state in which the end portions of the tapes are guided by the vacuum pad and overlapped at appropriate positions of the tapes to form a loop shape; Machine.