JPS59186851A - Sheet winding preparing device - Google Patents

Abstract

PURPOSE:To provide a device which applies adhesive or an index on the overall width of a sheet before entering a slitter 1, cuts the sheet by means of a slitter, reliably adheres the cut end to a new winding shaft in a no-warp manner, and automatically restarts winding of the sheet. CONSTITUTION:Adhesive or an index, in case the sheet S has an adhesive surface, is applied on the overall width of the sheet S, present before entering a slitter 1, by an adhesive or index applying device 2. Thereafter, the sheet S is started to run, and when a running distance attains a given value, a counting device 4 is actuated to stop running of the sheet, and an adhesive applied part A is brought to a stop on a winding shaft 3 or an index applied part B in a position over the winding shaft 3. Thereafter, in a condition that an adhesive surface immediately subsequent to a sheet adhesive applied part A' or an index applied part B' is pressed against the new winding shaft 3 by a pressurizing device 5, the rear sheet of a sheet roll is cut along a pressurizing device by the use of a cutting device 6.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet winding preparation device. The purpose is to mechanize the preparatory work of cutting the sheet and gluing the cut end onto a new winding shaft to resume winding with high quality.

In the past, the above preparatory work was mechanized, but this involved cutting the sheet roughly and gluing the cut ends to the winding shaft by blowing compressed air. It was of low quality. Therefore, when high quality is required, the cut ends are manually glued to the winding shaft.

When done manually, skill is required, but it is troublesome, especially when dividing a wide sheet using a slitter and winding it into several strips. The present invention provides a simple device that can perform high-quality cut end bonding without using manual labor in the split winder. The key point is that adhesive is applied to the sheet before it enters the slitter, instead of applying adhesive to the roll shaft in advance or to the cut section of the sheet as in the past.

If the sheet itself has an adhesive side, attach a sheet of paper. Therefore, the slitter separates the adhesive-applied portion and the pick-up paper-applied portion and directs them toward the winding shaft, but the sheet is equipped with a counting or detection device that stops the sheet running the moment it reaches or crosses the winding shaft. It also has a pressure device that presses the adhesive part of the stopped sheet against the winding shaft, and a cutting device that cuts the sheet along the pressure member, so even if the sheet is divided into many strips, all of them will be accurately distorted. Since it attaches to the roll shaft without any problem and is cut immediately near it, there is no need to worry about excess sheets being rolled up, and the cut-off paper ends up being attached to the rear of the sheet roll.

Next, the configuration and embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a detailed explanatory diagram of this invention. A device for applying and pasting paper in a straight line, and a sheet S
The adhesive-applied part A of has reached the new winding shaft 3.
- a counting device II (or a detecting device) that stops the sheet running at the instant or the moment when the cut-off paper application portion B exceeds the top of the winding shaft 3;
A pressurizing device advances from the standby position and presses the adhesive surface of the sheet S immediately after the adhesive-applied portion A1 or the paper-applied portion B onto a new winding shaft 3, and the pressurizing member presses the sheet along α. A sheet winding preparation comprising a cutting device 6 for cutting the trailing sheet of the reel R, and each roller (circuit) that comes into contact with the adhesive application portion A or the adhesive surface of the sheet itself has a non-adhesive surface. It is a device.

The device for applying adhesive or adhesive paper in a straight line across the sheet S is shown in the figure as a device in which a reel of double-sided adhesive tape or adhesive paper is pulled along a rail by hand or with a chain. The adhesive may be applied by running a section.

(S) A backing λα is provided on the back side of the S.

The front side is the side that is wound around the winding shaft 3, and is the adhesive-applied surface or the adhesive surface of the sheet itself.

The traveling distance of the sheet S from the position where the adhesive and paper is applied to the position where the new winding shaft 3 enters the winding position remains unchanged. Therefore, when the sheet S is stopped and adhesive and paper is applied, and when it resumes running and the distance traveled reaches a certain value, the counting device q sends a signal to stop the sheet running, and the adhesive application section is stopped. It is possible to make it stop at A' which rests on the winding shaft 3, and at B' which exceeds the top of the winding shaft 3, and the pick-up paper application section B stops at B' which is above the winding shaft 3. The counting device 1 may count not the traveling of the sheet S but the rotation angle of the feeder.

In addition, the detection device may be used to detect when the adhesive (cutting paper) applied part A Leave it up to the on-site engineer to invent such things as attaching the

The pressurizing device presses the pressurizing member α against the winding shaft 3 using, for example, a fluid pressure cylinder 7 shown in FIG. During winding, the arm is rotated and retracted by a drive mechanism (not shown). Rubber or the like is pasted on the pressure surface of the pressure member α so that pressure can be applied evenly.

The cutting part W6 is drawn simply because it is well known, but -7- it is retracted when not in use, and the pressurizing device is connected to the winding shaft 3.
It comes out only when pressed against the pressure member α and moves and cuts the sea) S using the pressure member α as a guide. In this example, the running mechanism uses a chain to pull and run the blade.

Note that g in FIG. 1 is a turret plate for rotating and changing the winding shaft 3 and the sheet roll R.

The rollers, including the slitter, which come into contact with the adhesive surface of the adhesive application portion A or the sheet itself may be made of silicone rubber to prevent adhesion, or their surfaces may be roughened to prevent adhesion.

FIG. 2 shows an embodiment in which the present invention is applied to a vertically distributed winding machine. The illustration of the counting (or detection) device is omitted. Guide roller 9 for vertically distributing the sheet S divided by the slitter l. This is coaxial with the rotating arm 10 for advancing and retracting the pressurizing device S.

The arm 10 is further provided with a guide roller // and a touch roller 7.2 that comes into contact with the surface of the sheet roll to prevent air entrainment. The illustration of the hydraulic cylinder for swinging the arm 10 is omitted. Since the device shown in FIG. 2 is also the same in principle as that shown in FIG. 1, the explanation of its operation will be omitted.

3 and 4 show two ways of cutting the sheet 8 in which the adhesive-applied portion A' is parked on the winding shaft 3. In the case of Fig. 3, the sheet S is cut along the edge of the adhesive application part A', but in the case of Fig. 4, the adhesive application part A' is divided into front and back parts, and the front part is cut at the rear of the sheet roll. This is an example of an adhesive part for sealing the edge of the sheet.

In addition, as shown as B' in FIGS. 1 and 2, the edge paper application portion B is located at the rear end of the adhesive surface of the trailing sheet of the sheet roll.
This serves as a knob when rewinding the sheet roll R.

The embodiments of the present invention have been described above for both the case where the sheet is a normal (non-adhesive) sheet and the case where the sheet has an adhesive surface. In either case, a designer can make various changes and applications according to implementation conditions using well-known techniques without changing the gist of the invention.

The present invention has provided the simplest and highest quality winding preparation device for a split winder in which winding preparation is extremely troublesome.

That is, before entering the slitter, adhesive or paper is applied to the entire width of the sheet F, and this is divided by the slitter, so each divided sheet is completely coated with adhesive and paper, and the guide Since the surfaces of the rollers, etc. are made non-adhesive, the adhesive will not peel off and the roller side will not get dirty.

Especially in the case of regular sheets, the divided sheets travel straight along the travel path and the adhesive-applied parts adhere to each core of the roll shaft all at once, so there is no misalignment or distortion in the adhesion positions that would otherwise occur if done manually. .

Since the sheet is cut along the pressure member right next to the bonding position, the sheet can be cut accurately, and there is no risk of excessive play being rolled up along the bonding part and interfering with precision winding. Since the adhesive application position can be precisely stopped on the winding shaft by a counting or detecting device, a small amount of adhesive is sufficient, and the area required for bonding the sheet can be reduced accordingly.

In addition, if the sheet itself has an adhesive surface, simply pressing the sheet onto a new roll shaft and cutting it is extremely efficient, as the cut edge paper is attached to the cut end on the sheet roll I/O roll side. The opening sheet perfectly matches the width of the sheet roll.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the simplest embodiment of the present invention, Fig. 2 is an explanatory diagram of an embodiment of a vertically distributed split winder, and Figs. 3 and 4 are illustrations of the adhesive application area and the cutting position. It is an explanatory diagram showing two states of flashing. K... Adhesive or paper application device, l... Counting device, E... Pressure device, t... Cutting device, A HA'・
... Adhesive-applied portion, B, E'... Initial paper-applied portion.

Claims (2)

[Claims] (1) In a sheet dividing winder that replaces a wound sheet roll with a new winding shaft in a turret type manner, a device that applies adhesive to the sheet in a straight line across a sheet travel path before entering the slitter; A counter that stops the sheet running at the moment the adhesive-applied portion of the roller reaches the new winding shaft. comprises a detection device, a pressure device that advances from a standby position and presses the adhesive-applied portion of the sheet onto a new roll shaft, and a cutting device that cuts the trailing sheet of the sheet roll along the pressed pressure member. A sheet co-winding preparation device, characterized in that each of the rollers in contact with the adhesive application portion has a non-adhesive surface. (2) In a sheet dividing winder that replaces a rolled-up sheet roll with a new winding shaft in a turret style, a sheet of paper is passed in a straight line across the travel path of the sheet with an adhesive surface before entering the slitter, and onto the adhesive surface. a counting or detecting device that stops the sheet traveling the moment the above-mentioned cut-off paper applied portion of the sheet crosses over a new reel; It is equipped with a pressure device that presses the adhesive surface onto a new roll shaft, and a cutting device that cuts the trailing sheet of the sheet roll along the pressed pressure member, and each roller that comes into contact with the adhesive surface of the sheet has a non-adhesive surface. A sheet winding preparation device characterized in that it is flexible.