JP2709451B2 - Wrapping material and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band wound body in which a band such as a foam material is spirally wound over a plurality of steps around an outer peripheral surface of a winding frame, and a method of manufacturing the band wound body.

[0002]

2. Description of the Related Art For example, a drain hose for an air conditioner or a duct hose for a house is made of a synthetic resin pipe formed by densely spirally winding a band made of a foam material such as urethane around the outer peripheral surface of a synthetic resin pipe. It is configured by covering with a cover. This band of the foam material is for preventing dew condensation and the like, and the manufacturer of the band has a form in which the band is wound by a predetermined length around the outer peripheral surface of the cylindrical portion of the bobbin having the brim plates at both ends. Things (hereafter,
"Bound material wrapping") as a product to manufacturers of drain hoses and duct hoses.

In a drain hose or duct hose production line, a bobbin of a band wound body is rotatably supported, and a band drawn from the band wound body is supplied to a winding device.
As the band material is wound around the outer peripheral surface of the synthetic resin tube by the winding device, a tensile force acts on the band material of the band material wound body, and the band material is freely rotated while the band material is rotated from the band material. Is drawn out. When the band material of one band material is exhausted, a new band material is drawn from another band material prepared in advance and supplied to the winding device. When exchanging the band wound body, it is necessary to connect the end of the band of the previously used band wound body to the beginning of the band of the band wound body to be used next. Suspend the operation of the device.

[0004]

However, it is necessary to stop the operation of the wrapping device every time the wrapping material is replaced, so that the production line is temporarily stopped and the production efficiency is reduced. It becomes a factor. In addition, if the winding device is temporarily stopped while winding the band material around the synthetic resin tube, the winding condition of the band material changes at that point, and there is a possibility that defective products may be generated.

In order to solve the above-mentioned problem, a plurality of rollers are interposed in a path from a rotatably supported band material winding body to a winding device, and the band material is detoured by the rollers. A method has been devised for supplying to the attachment device.

According to this method, there is enough time to pass through the roller before the end of the band material sent from the winding frame is taken into the winding device. During this operation, it is only necessary to join with the start end of the band of the new band wound body, and the band wound body can be replaced without stopping the winding device. However, in order to provide sufficient time to join the strips, a new configuration, such as a roller that creates a detour for the strips, is required, which increases equipment costs and increases the size of factory equipment. There is.

The present invention has been made in view of the above problems, and by devising a method of winding a band material around a bobbin, no special equipment is required and the production line is replaced without stopping. An object of the present invention is to provide a wrapped band material that can be made and a method for manufacturing the wrapped body.

[0008]

According to the present invention, there is provided a band wound body in which a band is spirally wound around an outer peripheral surface of a winding frame in a plurality of steps , and the winding frame is provided at an appropriate position on the outer peripheral surface. includes a temporary fixing portion, wherein the strip is folded Kaetan unit is provisionally fixed Rutotomoni, terminating the strip material to the temporary fixing portions that occasion Kaetan of the winding frame folded a predetermined length from the end With the side down
On top of that, the band material body which is the starting end side of the band material
By being spirally wound around the outer peripheral surface of the bobbin, folding
In the double winding part by the turning end and the band material body, only the band material body
The single winding part is continuous.

According to the second aspect of the present invention, the winding frame is provided with a stop hole for inserting and temporarily fixing the folded end of the band material.

[0010] According to a third aspect of the present invention, the band material is provided on the outer peripheral surface of the bobbin.
A method for manufacturing a strip wound body wound spirally over a plurality of steps , comprising folding a predetermined length from the end of the strip and temporarily fixing the folded end to the outer peripheral surface of the winding frame. With the folded end, which is the end side of the strip, facing down
Then, with the strip body on the starting end side of the strip overlapped,
By spirally wrapping the outer peripheral surface, the folded end and the belt
Single winding part only for the band material body to the double winding part by the material body
The method is characterized in that a foamed band wound body in which is continuously formed is manufactured.

[0011]

In the band wound body according to the first and third aspects of the present invention, a predetermined length is folded back from the end of the band, and the folded end is temporarily fixed to the temporary fixing portion of the winding frame. End down
Side of the reel with the band material body
Since it is spirally wound around the surface, the band material
When pulling out the single winding part, the double winding part is wound
When it reaches the place where it is
The folded ends are sequentially pulled out from the tip.

According to the second aspect of the present invention, since the folded end of the strip is inserted into the stopper hole and temporarily fixed, no return line is formed at the folded portion of the strip.

[0013]

FIG. 1 shows the appearance of a band wound body 1 according to an embodiment of the present invention. The band-wound body 1 has a cylindrical tubular portion 2.
And a band member 5 having a fixed width wound spirally around the outer peripheral surface of the cylindrical portion 2 of the winding frame 4. The winding frame 4 is made of corrugated cardboard, plastic material, or the like, and the inside of the tubular portion 2 is hollow. The band member 5 is used for a drain hose of an air conditioner or a duct hose for a house, and is made of a foamed material such as urethane or polyethylene, and is densely and multiply so as not to overlap with an adjacent winding by manual winding or mechanical winding. It is wound. In addition, in the figure, the dashed line h is the height of the last step of the strip 5 wound multiple times.

As shown in FIG. 2, a stop hole 10 as a temporary fixing portion is provided at one end of the cylindrical portion 2 of the winding frame 4, and the strip 5 has a predetermined length from one end. By folding back, the folded end 6 is inserted into the hollow portion of the cylindrical portion 2 through the stopper hole 10 to be temporarily fixed to the cylindrical portion 2.

If the end of the strip 5 is the folded end 5A and the starting end is the strip main body 5B with the folded end 6 interposed therebetween, the strip 5
Is used as the starting point of the winding with the folded back end 6 temporarily fixed.
As shown in FIG. 3, the belt material 5B is spirally wound around the outer peripheral surface of the tubular portion 2 in a state where the band material main body 5B is overlaid on the folded end portion 5A.

In this embodiment, the folded end portion 5A is
When spirally wound around the outer peripheral surface of the cylindrical portion 2, the length is set to a length from one end of the cylindrical portion 2 to the other end,
Therefore, the first winding of the winding frame 4 is performed at the folded end portion 5A.
And the band material main body 5B, and the subsequent winding becomes a single winding part 8 of only the band material main body 5B.

In this embodiment, the folded end 6 serving as a winding start point is temporarily fixed by the stopper hole 10. However, the temporary fixed portion is not limited to this, and an adhesive tape having a relatively weak adhesive force is used. Alternatively, a pin parallel to the outer peripheral surface of the cylindrical portion 2 may be provided near the end of the cylindrical portion 2 to hook the folded end 6. When temporarily inserted and inserted into the stopper hole 10 as in this embodiment,
Since the folded end 6 can be temporarily fixed without being bent, a folded line is not generated, and the quality of the band 5 made of a material having a low restoring force such as a foamed material of polyethylene does not deteriorate.

In a drain hose or duct hose production line, a winding device for supporting the winding frame 4 of the band-wound body 1 manufactured in this way freely and winding the band 5 around a synthetic resin pipe is used. On the other hand, the front end of the band material main body 5B is supplied. As the winding device winds the band material 5 around the synthetic resin tube, a tensile force acts on the band material 5 of the band material winding body 1 so that the winding frame 4 rotates freely, and the band material 5 Is delivered.

FIG. 4 shows a state where the first-stage winding around the cylindrical portion 2, that is, the double winding portion 7 formed by the folded end portion 5A and the band material main body 5B is unwound. When the band material main body 5B is pulled in the direction b by the winding device, the winding frame 4 rotates in the direction c, so that the band material main body 5B is unwound and wound around the band material main body 5B at the same time. The winding of the folded end portion 5A is also unwound, and the folded end portion 5A is unreeled from the cylindrical portion 2 of the winding frame 4 in the a direction from the tip. When the double winding portion 7 of the strip 5 is completely unwound and the folded back end 6 comes out of the stop hole 10, the strip 5 is completely released from the winding frame 4, and the strip wound body is wound. 1 is exhausted.

When the feeding of the double winding portion 7 of the strip 5 is started, that is, when the tip of the turned end 5A (end of the strip 5) appears, the tip of the turned end 5A is wound. By the time when the winding device is taken into the device, the end of the band material 5 is joined to the start end of the band material of the band material to be used next, so that the winding device can be stopped without stopping the winding device. Can be replaced. At this time, various methods such as heat welding and bonding using an adhesive tape or an adhesive are used for joining the end of the strip and the start of the strip to be used next.

The folded end portion 5A is used to replace the end of the band of the currently used band and the band of the band to be used next when replacing the band. Since it is provided as a "clearance" that allows enough time to join the start end, it is not necessary to set the length to a length that can be spirally wound from one end to the other end of the cylindrical portion 4 as in this embodiment. Instead, an appropriate length may be set in consideration of the winding speed of the winding device, the time required for joining the strips, and the like.

The band member 5 in the embodiment is a foamed material such as urethane or polyethylene. However, if the band member is a long band that can be spirally wound around a winding frame, any material such as a paper tape can be used. It may be made of a material.

[0023]

According to the present invention, a predetermined length is folded back from the end of the strip , and the folded end is attached to the temporary fixing portion of the reel.
Temporarily fix, with the folded end down, and the
Is the spiral wound around the outer peripheral surface of the bobbin
When pulling out the single wound part of the band material from this band wound body
When it reaches the point where the double winding is wound,
At the same time as the main body is pulled out , the folded end is pulled out from the front end , so that the end of the band is joined to the start of the band of the next band wound body without using special equipment. Can be. Therefore, there is no need to temporarily stop the production line halfway to replace the band wound body, thereby improving the production efficiency and preventing the occurrence of defective products.

According to the second aspect of the present invention, since the folded end of the strip is inserted into the stopper hole provided in the bobbin and temporarily fixed, no return line is formed at the folded portion of the strip, and There is no deterioration in the quality of the material.

[Brief description of the drawings]

FIG. 1 is a front view showing the appearance of a band wound body according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a method of temporarily fixing a folded end of a strip.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a perspective view showing a state in which a folded end portion of the strip is pulled out.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wrapping material 4 Wrap frame 5 Wrap material 5A Folded end part 10 Stop hole

Claims (3)

(57) [Claims] 1. A plurality of strips spirally formed on an outer peripheral surface of a bobbin.
It is a band material wound body wound around, The winding frame is provided with a temporary fixing portion at an appropriate position on the outer peripheral surface, The band material is folded back a predetermined length from the end, and the folded end There is temporarily fixed to the temporary fixing portion of the winding frame Rutotomoni, the strip
With the folded end, which is the end side, facing down,
Spiral on the outer peripheral surface of the bobbin with the band material body at the end side stacked
By being wound in a shape, the folded end and the band material main body
The single winding part of only the band material is continuous with the double winding part
A foam band wound body made of 2. The band-wound body according to claim 1, wherein the winding frame is provided with a stop hole for inserting and temporarily fixing a folded end of the band. 3. A plurality of strips spirally formed on an outer peripheral surface of a bobbin.
A method of making a strip wound body wound over, after the that occasion Kaetan folded back end from a predetermined length of the strip was temporarily fixed to the outer peripheral surface of the winding frame, the strip At the end
The folded end is on the lower side, and on top is the starting end of the strip
Spirally wound around the outer surface of the bobbin with the band material body
The double winding part by the folded end and the band material body
A method for manufacturing a wound band material, which comprises manufacturing a foamed band wound body in which a single wound portion of only a band body is continued .