JPH0586912B2 - - Google Patents

Abstract

PURPOSE:To feed a tape piece by piece positively in a short period by a method wherein, in a case when one piece of tape is taken out from a magazine and fed, the inside of an adsorption pad is made negative pressure for adsorbing the tape, revolution is given by a revolving body in the manner that the locus of the cramping part of a cramping device and an adsorption pad draw a form in circular path. CONSTITUTION:The mechanism concerned is as follows: by lowering an adsorption pad 26, one end side of the lowermost tape 21 accommodated in a magazine 22 is drawn right downward of the magazine through the take out port 22a located in the bottom of the magazine, while a part of the tape is located on the upper surface of an accepting stand 30b, while the other end side is still staying in the magazine device 22. A cramping device 28 is operated to mechanically fix the tape 21 at the tape accepting stand 30b. With this state, the revolving body 24 is rotated, the adsorption pad 26 and cramping part 30 unitarily move downward in the manner that the two parts depict a locus of a circular path causing the movement that the other side end of the tape 21 is is drawn laterally overcoming the weight of the accommodated tape coming out of the tape take-up port 22a located at the bottom part of the magazine device 22, and riding on the holding body 31 sequentially, and the drawn out tape is disposed on the circular path being the moving path.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a tape supply device, and more specifically, for example, when a tape-shaped non-slip material is welded to the surface of a pallet of a synthetic resin molded product. Regarding the supply device.

(Prior art) Conventionally, for example, a device for welding a tape-shaped anti-slip material made of a polymer material to the pallet surface of a synthetic resin molded product was developed as a surface treatment device for synthetic resin molded products.
It is disclosed in No. 63-25937 and is well known. The conventional surface treatment device disclosed in the above-mentioned publication includes a conveyor device 2 for conveying a pallet 1, which is a synthetic resin molded product, in a fixed direction, as shown in FIG.
A device 4 for supplying a tape-shaped anti-slip material 3 made of synthetic polymer material is placed above the conveyor device 2.
and a pallet 1 moved by a conveyor device 2
A press roller 5 is arranged near the surface of the pallet 1 and is movable up and down to press the anti-slip material 3 onto the surface of the pallet 1 that is passing through the pallet. It mainly consisted of a feeding guide tube 6 for guiding the pallet 1, and a heating device 7 for heating the anti-slip material 3 to the surface of the pallet 1 in order to weld them together.

In such a conventional surface treatment device, in particular, the anti-slip material supplying device 4 is equipped with a magazine device 8 in which a fixed length of anti-slip material 3 is loaded and stored. A belt conveyor device 9 is arranged so that the anti-slip materials 3 dropped one by one from the lower part of the magazine device 8 are transferred to the feeding guide tube 6 by the belt conveyor device 9.
is sent to the position of the feed roller 10 disposed above. The anti-slip material 3 is pulled out from the belt conveyor device 9 by the feed roller 10 and the clamping roller 11 and fed into the feed guide tube 6.

(Problem to be solved by the invention) However, the conventional anti-slip material supply device 4
Since each anti-slip material 3 is conveyed from the magazine device 8 to the belt conveyor device 9 to a predetermined position, that is, the position where the feeding guide tube 6 is arranged, the anti-slip material 3 is conveyed to the predetermined position. There was a problem in that it took a very long time to do this, and it was very difficult to accurately stop the feeder at a predetermined position and feed it into the feeding guide tube 6. Therefore, the magazine device 8 is installed above the feed guide tube 6, the anti-slip material 3 is dropped from the bottom of the magazine device 8 onto a suitable receiving plate, and the feed roller 10 moves it onto the feed guide tube 6.
Although it has been considered to draw the feed roller 10 inward, even in this case, the feed roller 10 can be reliably pushed into the anti-slip material 3.
There was no guarantee that the material would be clamped, and this caused the problem that the reliability of the feeding device could not be obtained.

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for reliably feeding tapes one by one from the top to the bottom in a short period of time.

(Means for Solving the Problems) The tape supply device of the present invention includes a support rod that is reciprocatable in the axial direction, a suction pad provided at the tip of the support rod, and a suction pad that communicates with the suction pad to create a negative pressure inside the suction pad. a tape pull-out device equipped with a vacuum supply source, a magazine device disposed above the tape pull-out device and accommodating a plurality of tapes therein; and a magazine device disposed adjacent to the tape pull-out device;
a clamping device having a clamping portion that clamps the tape when the suction pad comes into contact with the lower surface of one end of the lowest tape in the magazine device to perform vacuum suction and pull out the one end of the tape from the bottom of the magazine device; The apparatus includes a rotating body that supports both the tape drawing device and the clamping device, and is installed such that the suction pad and clamping portion of each device can rotate in an arc.

(Function) According to the tape supply device of the present invention, when one tape is taken out from the magazine device and supplied,
First, the support rod is raised to bring the suction pad at its tip into contact with the lower surface of one end of the tape located at the lowest position in the magazine device. At the same time, a vacuum supply source is activated to create a negative pressure inside the suction pad, and the tape is suctioned. By lowering the support rod in this state, one end of the tape is pulled out from the bottom of the magazine device. Next, the tape with one end pulled out from the magazine device is firmly fixed by a clamp device, and then when the clamp portion of the clamp device and the suction pad are rotated in an arc by a rotating body, Along with this, the other end of the tape is pulled out from the magazine device. Then, the clamp section of the clamp device is released, the supply of negative pressure to the suction pad is stopped, and the suction pad is separated from the tape by movement of the support rod, so that the tape is fed in a predetermined direction.

(Embodiments) Hereinafter, the tape supply device of the present invention will be described in more detail with reference to embodiments shown in the accompanying drawings.

FIG. 1 shows a tape supply device 20 according to an embodiment of the present invention. When welding a tape-shaped anti-slip material made of a synthetic polymer material to the surface of a pallet, which is a synthetic resin molded product, the tape supply device 20 of this embodiment pulls out the anti-slip material from the magazine device and supplies it to the surface of the pallet. ``Tape'' refers to a non-slip material. This tape supply device 20 is equipped with a magazine device 22 that stores an appropriate number of tapes 21 in a loaded state.
It is said that

A tape pull-out device 23 is attached to a rotating body 24 and is disposed directly below the tape take-out port 22a at the bottom of the magazine device 22. This tape drawing device 23 is a cylinder device 2 that is vertically supported with a piston rod 25a facing upward.
5, and a suction pad 26 is attached to the end of the piston rod 25a of the cylinder device 25. One end of a negative pressure introduction pipe 27 is connected to this suction pad 26, and this negative pressure introduction pipe 27
The other end is connected to a vacuum source (not shown), thereby creating a negative pressure in the suction pad 26 as required.

The rotating body 24 to which such a tape drawing device 23 is attached is further provided with a clamping device 28 arranged and attached in line with the tape drawing device 23. This clamp device 28 also includes a cylinder device 29 supported vertically with a piston rod 29a facing upward, and a clamp portion 30 is provided at the end of the piston rod 29a. As shown in FIG. 2, this clamp section 30 includes a lever 30a pivotally connected to a piston rod 29a, and the end of the lever 30a is rotatably fitted onto a shaft 30c fixed to the side of a tape holder 30b. It is fixedly connected to the mated sleeve 30d. One end of the presser plate 30e is fixed to this sleeve 30d, so that by rotation of the sleeve 30d, the presser plate 30e moves between a horizontal position where it covers the top surface of the tape holder 30b and an upright position where it opens. Pivot.

As shown in FIG. 1, one end of an arc-shaped tape holder 31 is fixed to the end of the tape holder 30b, and the other end is fixed to a rim 32 attached to the rotating body 24.
Supported by. This tape holder 31
When the rear end of the tape 21 is pulled out from the magazine device 22, it prevents the rear end from hanging down and serves as a guide during feeding.

A rotating body 24 that supports the tape drawing device 23, the clamping device 28, and the tape holder 31 together.
is rotatably installed around an appropriate position such that the suction pad 26 of the tape pull-out device 23 and the clamp portion 30 of the clamp device 28 move in an arc. The driving means for rotating the rotating body 24 is constituted by various known means such as an electric motor and a cylinder device.

Next, the tape supply device 20 according to the above-mentioned embodiment
The operation will be explained.

For example, when feeding the tape 21 in the magazine device 22 to the pallet surface treatment device (FIG. 4), the cylinder device 25 of the tape pull-out device 23 is activated to raise the piston rod 25a at high speed, and the piston rod 25a is attached to its tip. The suction pad 26 comes into close contact with the bottom surface of the tape at the bottom of the magazine device 22, which is exposed to the tape outlet 22a. At the same time, the vacuum supply source acts to create a negative pressure inside the suction pad 26, so that the tape 21 is attracted to the suction pad 26.

Next, the suction pad 26 is attached to the cylinder device 25.
As a result of this action, the tape holder 30b is lowered to approximately the same position as the upper surface of the tape holder 30b. By lowering the suction pad 26, the lowermost tape 2 in the magazine device 22 is removed.
1 is pulled out directly below from the tape outlet 22a at the bottom, and a part of it is pulled out from the tape receptacle 3.
0b, but the other end of the tape 21 is still inside the magazine device 22. Therefore, one end of the tape 21 is pulled horizontally to pull it out, but the other end of the tape 21 has the weight of an appropriate number of tapes in the magazine device 22, so the suction pad 26 is able to absorb it. It is not possible to apply a large pulling force in the lateral direction using force.
Therefore, the clamp device 28 acts and the tape 2
1 is mechanically fixed to the tape holder 30b.

That is, when the piston rod 29a is raised by the operation of the cylinder device 29, the lever 30a rotates about the shaft 30c, and the sleeve 30d is accordingly rotated. As a result, sleeve 30d
A presser plate 30e fixed to rotates to cover the upper surface of the tape holder 30b and clamp the tape 21.

In this state, the rotating body 24 is rotated, and as a result, the suction pad 26 and the clamp part 30 both move downward in an arc, and the tape 21
On the other end side, one tape 21 is pulled out laterally from the tape ejection port 22a at the bottom of the magazine device 22 by overcoming the weight of the stored tape, and while being pulled out, one tape 21 sequentially rides on the tape holder 31 and moves. It is placed on an arc-shaped route. The rotating body 24 is shown by a virtual line (two-dot chain line) in Fig. 1.
A pair of feed rollers 10a, 10 are stopped when they reach an approximately horizontal position as shown in FIG.
One side of the tape 21 moves and pinches the end of the tape 21.

At the same time, the supply of negative pressure into the suction pad 26 is stopped and the suction is released, and the suction pad 26 is separated from the tape 21 by the action of the cylinder device 25. Then, the clamp device 28 also releases the tape 21 from being clamped by the clamp section 30. In synchronization with this, a pair of feed rollers 10a, 1
0b is driven, and the tape 21 is fed into the feeding guide tube 6. At this time, the other end of the tape 21 is guided by the tape holder 31 and flows to the feeding guide tube 6 without coming off its path.

When one tape 21 is thus supplied to the surface treatment apparatus, the rotating body 24 returns to its original position and repeats the same operation again.

By the way, as described above, this tape supply device 20 pulls out one end of the lowermost tape 21 directly below from the tape ejection port 22a at the bottom of the magazine device 22 disposed directly above, and then uses the clamp device 28 to pull out that end of the tape 21. Clamping device 28 using rotating body 24 by firmly grasping one end side.
The rotation of the tape 21 causes the other end of the tape 21 to be pulled out laterally from the tape ejection port 22a of the magazine device 22, overcoming the weight of the loaded tape. If too much weight is added, it will not be possible to pull it out smoothly. Therefore, the magazine device 22 disposed directly above the tape supply device 20 does not contain too many tapes, and is replenished as needed when running low.

That is, as shown in FIG. 3, there is a tape main magazine device 3 on the side of the tape supply device 20.
3 is installed, and a suction transfer device 34 provided above the main magazine device 33 distributes tapes 21 one by one from the top of the main magazine device 33 to each magazine device 22 of the tape supply device 20.
Incidentally, since there is usually a plurality of anti-slip materials welded to the surface of the pallet, a corresponding number of tape supply devices are naturally arranged in the horizontal direction. Therefore, the suction transfer device 34 performs an operation of distributing the tapes 21 from the main magazine device 33 to each magazine device 22 one after another.

(Effects of the Invention) As explained above, according to the tape supply device of the present invention, it is possible to reliably supply the tapes housed in the magazine device one by one to a predetermined device in a short time. Supply reliability can be significantly improved.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a tape feeding device according to an embodiment of the present invention, FIG. 2 is a side view showing a clamping device constituting the tape feeding device, and FIG. 3 is a tape housed in a main magazine device. Fig. 4 is a front view showing a conventional pallet surface treatment device, and Fig. 5 shows a non-slip material in a conventional pallet surface treatment device. It is a perspective view partially showing a supply means. 6... Feeding guide tube, 20... Tape supply device, 21... Tape, 22... Magazine device, 2
2a... Tape take-out port, 23... Tape pull-out device, 24... Rotating body, 25a... Piston rod, 26... Suction pad, 27... Negative pressure introduction pipe,
28... Clamp device, 30... Clamp section.

Claims (1)

[Claims] 1. A tape drawer comprising a support rod capable of reciprocating in the axial direction, a suction pad provided at the tip of the support rod, a vacuum source communicating with the suction pad to create a negative pressure inside the suction pad, and the tape drawer. A magazine device is placed above the device and stores a plurality of tapes therein, and a magazine device is placed adjacent to the tape pull-out device, and the suction pad hits the bottom surface of one end of the lowest tape in the magazine device. a clamp device having a clamp portion that clamps the tape when the tape is vacuum-suctioned and pulled out from the bottom of the magazine device; and a clamp device that supports both the tape pull-out device and the clamp device and A tape supply device including a rotary body in which the suction pad and the clamp portion are rotatably installed so as to draw an arc.