JPH0155176B2 - - Google Patents

Abstract

PURPOSE:To reliably transfer a transported article without deteriorating the quality of the article by providing a transfer device for a long material like a tape in a manufacturing process of a slide fastener with means for transporting the transported article with low tension and keeping no relaxation in feed. CONSTITUTION:A pair of rotors 3, 7 having a plurality of mountain portions projected at equal spaces on each periphery thereof are supported on shafts 2, 6 parallel to each other. Further, while one mountain portion 12 is fitted in a valley portion 14 positioned between the opposite mountain portions 12, with the respective center lines aligned with each other, a gap a little larger than the thickness of a flexible transported article 15 is formed between the outer periphery of the mountain portion 12 and the outer periphery of the valley portion 14 in such a manner as to hold the article. A rotation driving source is coupled to at least one of the rotors 3, 7. When the transported article 15 is inserted between the rotors 3, 7 and the rotors are driven, the transported article 15 is drawn in step by step by the respective mountain portions 12. When the article is fitted in the opposite valley portion 14, the article 15 is curved in zigzag to enlarge the area of the article contacting the outer periphery of each mountain portion 12, so that the article is fed out by the frictional force.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is capable of transporting a long and flexible belt-shaped object such as a tape with low tension without applying strong tension. This article relates to a transfer device that can do this.

[Conventional technology]

In the process of manufacturing slide fasteners,
Heat setting is applied to the fastener tape or fastener chain (a pair of fastener stringers with elements attached to the tape that are interlocked) to shrink the tape and stabilize its structure, as well as to control the attachment of the element to the tape. This will lead to closer ties. Therefore, heat setting is generally performed using a hot air blower.
A large number of fastener tapes or fastener chains are arranged side by side, inserted into one side of the hot air blower, and sent out from the other side.

By the way, the conventional feeding means uses rubber-coated nipping rollers to feed the tape by applying rotational force to one side of the roller, and by the time the tape is fed out, the tape has not completely cooled down and is still in a fixed set state. Therefore, it would be ideal if the tape could be transported smoothly without applying strong tension and without loosening, but since it uses clamping rollers, it is necessary to adjust the feeding speed to take into account shrinkage of the tape. However, in reality, it is difficult to adjust this, and even if it were ideally adjusted, the degree of tape shrinkage is not necessarily constant over the entire length, and it is impossible to change the feed speed each time. can be,
Also, if there is slack in the tape feeding, it will interfere with the feeding since multiple strips are being processed, so the tape is actually fed out under tension.
There were many defects that degraded the quality.

[Purpose of the invention]

This invention was devised and developed in order to solve the above problems, and provides a transfer device that can operate reliably with a simple structure without causing loosening of a flexible belt-shaped object under low tension. It is about providing.

[Structure of the invention]

The low-tension transfer device of the present invention consists of a roller having a plurality of peaks protruding from the circumference at equal intervals, and is driven and a flexible belt-shaped object to be transferred is placed on the outer peripheral surface of the roller. A driving-side rotating body to be covered with a plurality of peaks protruding from the circumference at equal intervals, and the belt-shaped object to be transported is held down by the peaks into a valley between both peaks of the driving-side rotating body. The presser-side rotating body is supported by the tip of a swinging arm in parallel with the driving-side rotating body, and is attached by a spring toward the driving-side rotating body. a stopper that maintains a gap slightly wider than the thickness of the belt-shaped object to be transported between the outer circumferential surfaces of the ridges and the outer circumferential surfaces of the troughs that are engaged with each other on the driving side rotary body and the presser side rotary body; It is equipped with the following.

〔Example〕

As shown in FIG. 1, a drive shaft 2 is connected to a rotary drive source (not shown) such as a motor on the side of the base 1.
A rotating body 3 on the driving side is fixedly fitted onto the driving shaft 2, and a flexible belt-shaped object 15 is covered on the upper surface of the rotating body 3 on the driving side. Further, an arm 5 is pivotally supported between a pair of columns 4, 4 protruding from the base 1 so as to be able to swing up and down, and a support shaft 6 is attached to the free end side of the arm 5 parallel to the rotation shaft 2. A presser-side rotating body 7 similar to the drive-side rotating body 3 is rotatably supported on the support shaft 6, and a regulating plate 8 is vertically disposed on the free end side of the arm 5. An adjustable stopper 9 with a screw rod is provided protruding toward the base 1, and a tension spring 1 is provided between the base 1 and a bolt 10 screwed into the lower part of the stopper 9.
1 is interposed, and the belt-shaped object 15 placed on the upper surface of the drive-side rotor 3 is pushed into the trough 14 between the peaks 12, 12 of the drive-side rotor 3, and sent out while being bent. It is something.

Both of the rotating bodies 3 and 7 mentioned above have a star shape with a plurality of ridges 12 protruding radially at equal intervals on the outer peripheral surface of the roller, and the driving side rotating body 3 has a core part and ridges. 12, and the holding side rotating body 7 has a pair of star-shaped end plates 13,
Although a pipe is fixed to each mountain portion between the rotors 13 and 13, both rotating bodies 3 and 7 may be formed with any of the structures described above. Further, as shown in FIG. 4, the peaks 12 may be formed like the teeth of a gear.

Furthermore, as shown in FIG.
When the tape is fitted into the valley 14 between the two peaks 12, 12 of the other party with their center lines aligned with each other, the tape is inserted between the outer circumferential surface of the inserted peak 12 and the outer circumferential surface of the valley 14. The stopper 9 is adjusted to restrict the swinging range of the presser-side rotating body 7 so that a gap slightly wider than the wall thickness of the belt-shaped object 15 is maintained. is biased toward the drive-side rotating body 3 by the spring 11.

When transporting a flexible belt-shaped object 15 with the device having the above structure, the stopper 9 is adjusted according to the thickness of the belt-shaped object 15 to be sent, and the drive-side rotating body 3 and presser After setting a gap with the side rotating body 7, the belt-shaped object to be transferred 15 is placed over the driving side rotating body 3 and guided between the peaks 12, 12 of both the rotating bodies 3, 7. It is sent out by rotating the drive-side rotary body 3 by a motor, and the belt-shaped object 15 is pulled in so as to be folded up by the peaks 12, 12 of both the rotors 3, 7, and the object 15 is drawn into the trough of the other party. When the belt-shaped object 15 is fitted into the section 14, the belt-shaped object 15 is bent into a meandering shape, and the area in contact with the outer peripheral surface of each peak 12 of the belt-shaped object 15 increases, and the object is sent out by the frictional force. . Moreover, since the presser-side rotating body 7 is driven and rotates by inertia, even if the peak portion 12 of the presser-side rotating body 7 is inserted into the trough portion 14 of the other party as shown in FIG. Also the third
As shown in the figure, even if the opposing crest 12 is inserted into the trough 14 of the presser-side rotating body 7 and is pinched, the belt-shaped object 15 to be transported is not strongly pressed, and is lightly pinched and sent out. It is.

Furthermore, if the belt-shaped object 15 to be transported is, for example, a fastener tape, a large number of long fastener tapes are sequentially spliced and heat set, and the spliced portion has a thick wall. When the meat part passes, the presser side rotating body 7 is swingable and is biased by the spring 11, so the presser side rotating body 7 is released by the thick part, and after passing, It is returned to its original state by a spring 11, and even when passing through this thick part, it is lightly pinched and sent out.

〔Effect of the invention〕

The low-tension transfer device of the present invention includes a drive-side rotating body having a plurality of peaks arranged at equal intervals on the outer periphery of a roller, and a presser-side rotating body having the same structure.
The presser-side rotating body is able to swing relative to the driving-side rotating body, the swinging range is restricted by a stopper, and the spring is biased toward the driving-side rotating body, making it flexible. A certain belt-shaped object to be transported is placed on the drive-side rotating body, and sent out while being bent at the peaks and valleys of both rotating bodies, and the outer surface of the peak and the outer circumferential surface of the valley are meshed by adjusting the stopper. Since the distance between the belt-shaped object and the object to be transported is kept slightly wider than the thickness of the object to be transported, the object to be transported in the belt-like shape is folded into each peak of the drive-side rotating body, and the distance between the belt-shaped object and the object to be transported is kept slightly wider than the thickness of the belt-shaped object. It is fed by being pinched between the ridges, but the pinching force is light, so the belt-shaped object is not strongly compressed, and it can be fed smoothly with low tension and without any loosening during feeding. be.

Furthermore, since the presser-side rotating body is urged toward the drive-side rotating body by the spring, even if the belt-shaped object to be transported has a thick part, that part can be fed out without any hindrance, and the thick part can also be fed out. Even after this occurs, it returns to its original state and continues to feed smoothly.

If the above-described apparatus is used, even a band-shaped object whose tissue is easily changed can be transferred normally without any hindrance.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a low-tension transfer device of the present invention, FIGS. 2 and 3 are sectional views showing a state in which a belt-shaped object is sent, and FIG. 4 is a sectional view showing a similar example of the device of the present invention. It is. 1...Base, 2...Drive shaft, 3...Drive side rotating body, 5...Arm, 6...Spin shaft, 7...Presser side rotating body, 9...Stopper, 11...Spring,
12... Mountain portion, 14... Valley portion, 15... Band-shaped object to be transported.

Claims (1)

[Claims] 1. A drive-side rotating body 3 consisting of a roller with a plurality of peaks 12 protruding from the circumference at regular intervals, which is driven and whose outer peripheral surface is covered with a flexible belt-shaped object to be transported 15. Similarly, a plurality of peaks 12 are protruded at equal intervals on the circumference, and the peaks 12
and a presser-side rotating body 7 consisting of a roller that presses and bends the transferred object 15 into the trough 14 between the peaks 12, 12 of the drive-side rotating body 3, and the presser-side rotating body 7. The body 7 is supported at the tip of the swinging arm 5 in parallel with the drive-side rotor 3, and is biased toward the drive-side rotor 3 by a spring 11. A stopper 9 is provided for maintaining a gap slightly wider than the wall thickness of the belt-shaped object 15 between the outer circumferential surfaces of the ridges 12 and the troughs 14 of both the presser-side rotating body 7 and the interlocking ridges 12. Transfer device with low tension.