JP2848758B2 - Automatic splicing method for web - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for successively adding and connecting webs used as a base material of an adhesive tape without interruption.

[0002]

2. Description of the Related Art Generally, a raw material of an adhesive tape or the like is wound around a core to form a roll. In the production process of the pressure-sensitive adhesive tape, the raw material is continuously supplied by successively adding and connecting the roll materials so that the supply of the raw material is not interrupted for each roll.

[0003] Conventionally, as a connection raw material used for this reconnection, an adhesive tape is attached to the end of the wound raw material such that the adhesive surface faces outward, and It is known that an end portion of a tape is attached to an outer peripheral surface of a raw material by a tape piece.

Further, as a method of continuously adding and connecting the raw materials using the connecting raw material, a method using a two-axis turret automatic feeding device or the like is known.

That is, when the supplied material in the supply state is in the last stage of supply, the supply material is brought into contact with the surface of the supply material by inverting the supplied material and the connection material. Then, the supply material and the connection material are instantaneously connected via the adhesive tape portion of the connection material. at the same time,
By instantaneously cutting and separating the supply material from the winding core, the supply material is continuously connected to the connection material without interruption.

[0006]

By the way, when the above-mentioned conventional connection material is used in an automatic feeding device, the connection material rotates (so-called pre-drive) during the reversing operation.
I do. At this time, the adhesive tape portion, which is the end portion of the raw material for connection, must be sufficiently adhered with a tape piece so as not to peel off and vary. Further, when the connection material is turned over and then brought into contact with the supply material, the tape piece is easily peeled off and the adhesive tape portion and the supply material must be instantaneously connected.

[0007] However, in the case of the above-mentioned conventional raw material for connection, since the adhesive tape portion provided at the end of the raw material is simply attached and stopped with a piece of tape, it is possible to achieve both of these purposes. Inconvenience such as difficulty arises.

In addition, in the case of the replenishing connection by the automatic feeding device, the supply material and the connection material must be instantaneously connected and the supply material must be cut and detached from the core at the same time. In the case where the raw material is a cloth-like woven fabric, there is a disadvantage that the material cannot be cut instantaneously. Therefore, in the case of such a source material, as shown in FIG.
Are fast-forwarded and stored in a predetermined container b, and while the stored supply material a is being unwound, the supply material a is manually
And the connection material c must be cut and joined to the sewing machine d, which complicates the operation. Further, if the supply source a is fast-forwarded at the time of reconnection, the tension of the supply source a held by the roller e is lost, so that the supply source a
And the connection material c is slackened, and these material a,
Quality inconveniences such as the weft forming the cloth c being skewed tend to occur.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a method capable of performing an additional connection by an automatic feeding device even when the raw material is a cloth-like fabric. .

[0010]

The automatic splicing method of the present invention for solving the above-mentioned problems is performed in a wound state.
The connection material having an adhesive portion at its end is brought into contact with the surface of the supply material in the last stage of feeding, and the supply material and the connection material are instantaneously connected through the adhesion portion of the connection material. At the same time, the supply material is cut and detached from the winding core instantaneously and automatically spliced from the supply material to the connection material without interruption. Is cut by a cutting blade in which a plurality of rotary blades are arranged on one straight line .

[0011]

[0012]

According to the automatic splicing method of the present invention, the supplied material is cut by the cutting blade in which a plurality of rotary blades are arranged in a straight line, so that the material is formed even if the material is cloth. Each fiber is instantly cut by the rotating blade.

[0013]

[0014]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 show the outline of the whole configuration of the connection web 1, and FIG. 3 shows the outline of a two-axis turret automatic feeding device 2 using the connection web 1.

An adhesive tape 3 is attached to an end of the wound raw material 11 so that the adhesive surface 31 faces outward. In addition, this adhesive tape 3
Is adhered to the outer peripheral surface of the raw material 11 by a plurality of (five in this embodiment) tape pieces 4 having perforations. Then, when the adhesive surface 31 of the adhesive tape 3 comes into contact with the surface of the supplied raw material 10 being supplied, the connection between the supplied raw material 10 and the adhesive tape 3 is instantaneously performed. The tape piece 4 fixes the adhesive tape 3 on the outer peripheral surface of the raw material 11 until the adhesive surface 31 of the adhesive tape 3 comes into contact with the supplied raw material 10 being supplied. When the base material 31 comes into contact with the supply source material 10 being supplied, it is torn off from the perforations.

As the material 11, various hydrophilic and hydrophobic materials can be used. Specifically, various materials 11 such as polyester fabric, vinylon fabric, kraft paper, plastic film and the like can be used. Can be used.

The adhesive tape 3 is not particularly limited as long as it has an adhesive force enough to adhere to the supplied raw material 10 when it comes into contact with the surface of the supplied raw material 10 during supply. Instead, for example, Synnuno Tape (manufactured by Sekisui Chemical Co., Ltd.) or the like can be used. The adhesive surface 31 of the adhesive tape 3 is not particularly limited as long as it can obtain an adhesive force enough to adhere to the supplied raw material 10 when it comes into contact with the surface of the supplied raw material 10 during supply. However, it may be provided with a width of about 100 mm, for example.

As the tape piece 4, as shown in FIG.
An adhesive layer 42 is formed on the surface of a base material 41, and a tape piece 4 having perforations formed by a plurality of pores 43 on the entire piece 4 can be used. Specifically, the thickness 10
On the surface of a base material 41 made of a low-density polyethylene film of 0 μm or less, an acrylic adhesive is applied with a thickness of 50 μm or less to form an adhesive layer 42, and pores 43 are perforated throughout. Is mentioned. The place where the tape piece 4 is adhered is not particularly limited as long as the adhesive tape 3 can be fixed to the outer peripheral surface of the raw material 11 so as not to disperse, and an appropriate place as needed. (Five places in the width direction in this embodiment). The size of the tape piece 4 is not particularly limited as long as the adhesive tape 3 can be fixed on the outer peripheral surface of the raw material 11.
m and a length of about 10 mm can be used.
Further, the number of the pores 43 perforated in the tape piece 4 indicates that the adhesive surface 31 of the adhesive tape 3 is
There is no particular limitation as long as the holes are perforated at such a density that they can be easily cut off when they come into contact with the surface of No. 0.

Next, the operation of the two-axis turret automatic feeding device 2 using the connection material 1 will be described.

A supply source 10 and a connection source 1 are set in the automatic biaxial turret feeding device 2. The supply source 10 is conveyed by the rollers 6, immersed in the vat 8 containing the anchor liquid 7, and then supplied through the preliminary drying 9 to the tape manufacturing process. In addition, as shown in FIG. 5, the two-axis turret automatic feeding device 2 includes a
It has cutting blades 5 arranged in a straight line.

First, when the supply raw material 10 being supplied disappears, the supply raw material 10 and the connection raw material 1 are reversed, and the surface of the supply raw material 10 being supplied is connected to the connection raw material 10. Anti 1 is brought into contact. Then, the adhesive surface 31 of the adhesive tape 3 of the connection material 1 adheres to the supply material 10 being supplied, and is pulled by the transport force of the supply material 10. As a result, the tape piece 4 on which the adhesive tape 3 is fixed is cut off and separated, and
An additional connection is made from 0 to the connection fabric 1.

Simultaneously with the connection, the cutting blade 5 instantaneously cuts and separates the supply raw material 10. At this time, since the cutting blade 5 in which the plurality of rotary blades 51 are arranged on one straight line is used for cutting the supply raw material 10, even if the supply raw material 10 is cloth-like, Each fiber constituting the web 10 can be cut accurately and instantly by the rotary blade 51.

Then, as shown in FIG. 6, in a state where the replenishment connection is completed, the replenishment portion between the raw material 11 of the connection raw material 1 and the supply raw material 10 is connected by the adhesive tape 3.

According to this method, the rotary blade 51
Since the various supply raw materials 10 in the supply state can be cut, any of the supply raw materials that can be connected by the adhesive tape 3 is added to the various supply raw materials 10 by the original material 1 of the connection raw material 1.
1 can be connected. Therefore, it is possible to add and connect various combinations such as a connection between hydrophilic raw materials, a pair of hydrophobic raw materials, and a connection between a hydrophilic raw material and a hydrophobic raw material.

After the reconnection, the web 11 of the connection web 1 is conveyed by the rollers 6 and is supplied to the tape manufacturing process after immersion of the anchor solution 7 and preliminary drying 9.

However, in the case where the supply material 10 or the material 11 of the connection material 1 is a hydrophilic material, if the material is immersed in the anchor solution 7, the adhesive tape 3 of the connection part which has been adhered to the anchor liquid 7 will be used. It may peel off. for that reason,
When the hydrophilic material is added and connected, the bat 8 is lowered at an appropriate timing when the added portion passes, so that the added portion is not immersed in the anchor liquid 7.

[0028]

As described above, according to the present invention, even if the material is cloth-like, each fiber constituting the material forms a rotary blade .
Since it is cut instantaneously by the cutting blades arranged on one straight line, there is no need for the trouble of fast-forwarding the raw material and adding and connecting by hand as in the past. Can be added and connected. In addition, since the original sheet does not sag due to the fast-forwarding of the original sheet, it is possible to supply the added and connected original sheets with stable quality.

[0029]

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing an overall configuration of a connection web.

FIGS. 2A and 2B are a partially enlarged front view and a partially enlarged side view showing a main part of a connection web.

FIG. 3 is a line diagram showing a process of transporting a raw material by a two-axis turret automatic feeding device.

FIG. 4 is a partial perspective view schematically showing the entire configuration of a tape piece.

FIG. 5 is a perspective view schematically showing the overall configuration of a cutting blade.

FIG. 6 is a side view showing an additional connection portion of the raw material.

FIG. 7 is a line diagram showing a conventional material transfer process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection raw material 10 Supply raw material 11 Raw material 3 Adhesive tape 31 Adhesive surface 4 Tape piece 43 Pore (perforation) 5 Cutting blade 51 Rotary blade

Claims (1)

(57) [Claims] An original material for connection having a wound state and having an adhesive portion at an end thereof is brought into contact with the surface of the supply material in the last stage of feeding, and the adhesive material of the original material for connection is passed through the adhesive portion. At the same time that the supply material and the connection material are instantaneously connected, this supply material is instantaneously cut off and detached from the winding core, so that the supply material is automatically spliced from the supply material to the connection material without interruption. An automatic splicing method of a raw material , comprising cutting a supplied raw material by a cutting blade in which a plurality of rotary blades are arranged in a straight line .