JPS6326053B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a processing device for the tail of a dividedly wound sheet, in which a wide sheet is divided into several strips by a slitter and wound one after another in fixed quantities, and when mass producing fixed quantity sheet rolls, the rolled up sheet roll is The purpose is to mechanize the trailing process by cutting the trailing sheet, gluing the upstream cut end to a new roll shaft, and, if necessary, gluing the downstream cut end to the circumferential surface of the sheet roll.

In the mass production of fixed-quantity sheet rolls using sheet dividing and winding devices, most of the processes are mechanized, including winding control, preparatory work such as positioning of the slitter blade and winding arm, and conveyance of the sheet rolls. However, it is difficult to mechanize the above-mentioned sheet roll trailing process without reducing productivity, and to this day the process has relied on manual labor. However, manual processing of the trailing edge of the sheet tends to cause wrinkles and misalignment, resulting in a decrease in product quality. and,
This work is carried out by one person who holds the cut edge of the trailing sheet without distortion, and another person who applies double-sided adhesive tape equal to the width of the sheet horizontally, or places a spirally wound roll (paper tube) close to the cut edge and glues it. This is done in cooperation with the above, so the more sheets are divided, the more labor and time it takes.

This invention was created not just by mechanizing conventional manual work, but by fundamentally reconsidering the tail processing method itself. That is, when adhering the cut end of the sheet to a new winding shaft, the entire width is adhered, but this only needs to be able to hold the sheet until it wraps around the outer circumference of the winding shaft once. The trailing end of the sheet roll may be glued to prevent it from being rewound during transportation.

Therefore, there was no need for full-width bonding of the trailing sheet cut end on either the downstream side, where it is bonded to the circumferential surface of the sheet roll, or the upstream side, where it is bonded to the new winding shaft.

Next, the configuration and embodiments of the present invention will be described with reference to the drawings.

In the present invention, the term "adhesive" refers to an adhesive material, and includes adhesive tapes as well as glues and adhesives.

1 to 3 are examples in which the present invention is applied to a divisional distribution winding device with the best performance. A contact roller 1 is fixed in the center, and divided sheet winding arms 2 are lined up on the left and right sides by the number of divisions. Each pair of arms 2
The winding shafts C ₁ and C ₂ are held between the tips, and the divided sheet S
Make sheet rolls R ₁ and R ₂ by winding only a certain amount.
The winding shafts C ₁ and C ₂ initially wind the divided sheet S in contact with the sheet winding positions P ₁ and P ₂ on the circumferential surface of the contact roller 1 as shown by the chain lines, and as the sheet roll grows, the arms 2 gradually rise. go. After a certain amount of winding is completed, the sheet rolls R ₁ and R ₂ are separated from the contact roller 1 by standing the arm 2 vertically as shown by the solid line in Figure 1. The trailing sheets S of the sheet rolls R ₁ and R ₂ are connected to the peripheral surface of the contact roller 1 which is separated from the sheet rolls R 1 and R 2 . Conventionally, the connected trailing sheet S is cut manually, the sheet rolls R ₁ and R ₂ are carried out, new roll shafts C ₁ and C ₂ are attached to the ends of the arms, and the contact roller 1 is re-assembled as shown by the chain line in Figure 1. Bring it to the wrapping position. By then, the sheet S cut end (upstream side)
was held down by hand on the circumferential surface of the contact roller, and the cut end or the winding shaft was adhered to the winding shaft (paper tube) with an adhesive (generally double-sided adhesive tape) applied in advance to the winding shaft. The cut ends of the sheet rolls that were carried out were also glued together manually. Note that the wide sheet S ₀ rises through each roller below the contact roller 1 and is turned into divided sheets S by the slitter 3 and hung on the contact roller 1 . The common contact roller 1 distributes every other divided sheet S to the left and right, and the divided sheets S are wound onto the winding shafts C ₁ and C ₂ on both sides, respectively.

Now, the outline of the apparatus of the present invention will first be described with reference to the embodiment shown in _FIG . The sheet rolls are fed onto centrally driven winding shafts C ₁ and C ₂ , respectively.
In the dividing winding device that winds up R ₁ and R ₂ , it is installed on the running path of the divided sheet S between the slitter 3 and the winding positions P ₁ and P ₂ , and applies adhesive partially to each divided sheet. The adhesive applying device 4 and the adhesive applying portion of the divided sheet S to which the adhesive T has been applied by the adhesive applying device 4 are connected to the winding axis C ₁ ,
A means for advancing the adhesive applying device 4 to near the winding positions P ₁ and P ₂ by driving C ₂ , a lateral positioning mechanism 5 for laterally positioning the adhesive applying device 4 , and a means parallel to each winding roller movable beam 6,
When each of the wound sheet rolls R ₁ and R ₂ is released from the contact roller 1, the beam 6 is moved to the standby position 6.
A beam drive mechanism 7 moves parallel from ₀ to near the winding position and brings each trailing sheet into contact with winding positions P ₁ and P ₂ on the surface of the contact roller 1, and the movable beam 6 is used as a rail to wind each divided sheet S. Attached position P ₁ ,
A cutting device 9 for cutting at P ₂ and a sheet roll R ₁ ,
When R ₂ is rolled up, the adhesive applying device 4 applies adhesive T to the necessary parts of each divided sheet S,
After advancing the entire sheet S a little so that the adhesive application position is near the winding positions P ₁ and P ₂ , the beam 6 is advanced to the vicinity of the winding positions P ₁ and P ₂ on the surface of the contact roller to separate each part. The back side of the sheet S in the vicinity of the adhesive T application position is attached or adsorbed to the above-mentioned winding positions P ₁ and P ₂ , and the cutting device 9 cuts each trailing sheet S as it is.
Either the adhesive is cut just before the adhesive, or each adhesive is separated into two parts.

Although the adhesive applying device 4 may be one that sprays an adhesive liquid, in this embodiment, the adhesive T is a double-sided adhesive tape that has conventionally been used manually. At the current stage, the device that automatically cuts and pastes an appropriate length from a roll of adhesive tape has a large volume and is not suitable for this example, so we cut the adhesive tape to the required length in advance as shown in Figure 6. The piece T was used by temporarily adhering it to a strip material 10 that is easy to peel off. A round hole 11 between the tape pieces T is for position detection. The adhesive tape pieces T are advanced one by one from the roll 12 around which the band material 10 is wound to the tip of the applicator 4, and the round hole 11 is detected and positioned, and the tape is placed on standby.

When the position where the adhesive should be applied to the divided sheet S has arrived, the machine frame 15 is pushed out by the fluid pressure cylinder 14, and the adhesive tape piece T is pressed against the sheet S and bonded. The strip material 10 that has lost the tape piece T is reel 1
6. 13 is a guide roller, and 17 is a motor. The machine frame 15 is slidably attached to the inclined surface of the traversing table 5a, and the traversing table 5a slides on the traversing base 5b for positioning by rotation of the threaded rod 5c.

The movable beam 6 is simply shown in the figure, but it is made by providing a square steel pipe with a slit through which a razor blade runs, and attaching a wheel to the support of the blade so that it can run inside the pipe. The surface in contact with the surface adhesive T is treated so as not to be bonded, or such a material is pasted on it. The cutting device 9 is not limited to a razor blade.

The drive mechanism 7 for the beam 6 advances the beam 6 from the standby position to the vicinity of the winding position P of the contact roller 1 and back again. However, since this embodiment uses a distributed winding method, the winding position is not around the contact roller 1. Since there are winding devices on both sides, first proceed to winding position P ₁ on the right side of Figure 1, cut the divided sheets S on this side all at once, then turn to winding device P ₂ on the left side of Figure 1 and perform the same function. and then return to the standby position. To facilitate such operations, the drive mechanism 7 of this embodiment is coaxially stopped at both ends of the contact roller 1 at all times.
A beam 6 is fixed between a pair of discs and a rotating mechanism (not shown) that rotates as needed.

Next, the handling of the embodiment apparatus shown in FIG. 1 will be explained.
In this embodiment, the only additions to the conventional equipment are an adhesive applicator 4 and a suction port 8 on the surface of the contact roller 1, and the movable beam 6 is a beam that has been conventionally used as a cutting device for the contact roller 1.
Simply move it along the surface of the sheet and use it to attract the divided sheet S. Therefore, it is necessary to handle new and old parts in such a way that the post-processing method of the present invention can be implemented.

Now, as shown in FIG. 5, the adhesive applying device 4 is positioned in advance so that a pair of divided sheets S are lined up across the boundary line B, and an adhesive (double-sided adhesive tape) is applied to the tip.
T is placed on standby, the movable beam 6 is placed at the standby position ₆₀ , and sheet division and winding proceed as before. When the sheet rolls R ₁ and R ₂ are wound up at the winding positions P ₁ and P ₂ on both sides of the contact roller 1, the sheet traveling is stopped and the winding arm 22 is erected vertically as in the conventional manner, resulting in the state shown in FIG. This may be done before the arms 2 and 2 are erected, but first, only the adhesive applying device 4 placed along both edges of the divided (trailing) sheet S that advances to the winding position P ₂ is activated, and the adhesive T is applied to the sheet S side. Move to.

Next, the entire sheet S is run for a length equal to the distance between the winding positions P ₁ and P ₂ and then stopped. Then, this time, the adhesive applying device 4 is activated toward both edges of the divided (trailing) sheet S that advances to the wrapping position _P1 . The adhesive T is now applied alternately as shown in FIG.

The adhesive T applying device 4 is arranged in three places along both edges and in the center for a wide divided sheet S, and in one place in the center for a narrower divided sheet S. do it. It is also a good idea to prepare two types of adhesive applicators, one for wide widths and one for narrow widths, and replace them as appropriate. By selecting and using the placement and function of the application device, adhesives T can be applied in several places in the width direction of the sheet S, in one place widely in the center, in a thin strip in the running direction of the sheet S, or in the width direction. It can be changed in various ways, such as by attaching it to a long and thin line. Traveling, stopping, and travel distance detection of the entire seat S can be automatically performed using known equipment.

Next, the entire sheet S is advanced by the distance from the adhesive applying device 4 to the winding position P ₁ (sheet roll R ₁ ,
(Rewind to R ₂ ). Each trailing sheet S with adhesive T
is stretched tangentially from each sheet roll R ₁ , R ₂ to the contact roller 1 and connected.

Therefore, both plates of the beam drive mechanism 7 are rotated around the axis of the contact roller 1, and the movable beam 6 is first advanced to the vicinity of the winding position _P1 . This is also easy to automate since it is a fixed amount rotation. The trailing sheet S pushed by this beam 6 has a slight sheet roll R ₁
is rewound and wound around the circumferential surface of the contact roller 1, and is connected to the sheet roll _R1 from the winding position _P1 via the beam 6, as shown by the solid line in FIG. Then, the back side of the sheet S at the adhesive application position is placed on the wrapping position P.

In this embodiment, the central part of the length of the adhesive T is above the winding position P, and only the rear part thereof is placed on the circumferential surface of the contact roller. Since the traveling control of the seat S is performed precisely, it is easy to position it as shown above.

The adhesive T is bent and is at a position to be cut approximately at its center.

Then, the cutting device 9 that was waiting on the side is run and all (in this case, two) trailing sheets S on the side of the sheet roll _R1 are cut at once. At the same time, each adhesive T is also divided into front and back parts and attached to both cut ends.

Next, the disc of the drive mechanism 7 is moved to the winding positions P ₁ and P ₂
Turn the movable beam 6 to move the distance between the two.
The movable beam 6 has now reached around the winding position _P1 ,
Also for the trailing sheet S on the sheet roll R ₂ side,
Perform sheet alignment and cutting in the same way as near P ₁ . The beam 6 is then returned to its standby position ₆₀ .

In this way, the upstream side of the trailing sheet cut end is attracted to the winding positions P ₁ and P ₂ and remains on the contact roller 1, and the downstream cut end is attached to the sheet rolls R ₁ and R _{2 .}
They hang down from each other. The latter is bonded via the first half of the adhesive T by winding up the sheet rolls R ₁ and R ₂ before transporting them and pressing them lightly against the roll circumferential surface using simple equipment or by hand.

Sheet rolls R ₁ and R ₂ are carried out, and new roll shafts C ₁ and
After attaching C ₂ to winding arm 2, arm 2
to the contact roller 1. Then the winding shaft
C ₁ and C ₂ are at the winding positions P ₁ and P ₂ as shown in Fig. 3.
It hits the adhesive T on the cut end of the divided sheet S that has been adsorbed and remains, and adheres it. Therefore, upon resuming the winding operation, the divided sheets S are placed on their respective winding shafts.
It grows by being wrapped around C ₁ and C ₂ .

The processing device of the present invention can be variously modified using techniques well known to those skilled in the art without changing the gist thereof. The present invention can be applied regardless of the type of split winding device. In addition to adhesive tape pieces,
Glue or a commercially available adhesive may be applied by spraying, as long as it can be applied automatically to the sheet. The way you attach it is also free.

In the above embodiment, the case where each adhesive T is divided into front and back parts is illustrated, but if the beam 6 is gathered a little more by the drive mechanism 7, the sheet S will be cut just before the adhesive T. In this case, the adhesive T is attached only to the tip of the trailing sheet on the upstream side, and the new winding shaft C ₁ ,
It will be used only for adhesion to C ₂ .

A contact roller with a suction port is not essential to the implementation of this invention. In other words, the means for leaving the upstream side of the trailing sheet cut end on the contact roller surface is not limited to vacuum suction; for example, selecting a position such as winding position _P2 where it remains attached to the contact roller surface even after the sheet is cut due to its own weight, If the sheet is relatively easy to adapt, it is up to the engineer to take advantage of the natural adhesion caused by static electricity generated on the contact roller during the winding process, or proactively apply a little adhesive to the other side of the sheet. .

This invention paved the way for efficient mechanization of the processing of the trailing portion of a split winding sheet. This eliminates the conventional common sense of trailing treatment in which the entire width of the cut end of the trailing sheet is glued to the winding shaft and the circumferential surface of the sheet roll, and shows that it is sufficient to glue only a portion of each trailing sheet cut. In addition, even if adhesive is used for a relatively long time in the longitudinal direction of the sheet, the amount required is drastically reduced compared to conventional adhesives, and by cutting the trailing sheet, adhesive can be applied to both cut ends at once, and each adhesive Since the length can be made longer in the sheet traveling direction, deviations in the cutting position due to mechanical errors in the sheet traveling stop mechanism can be largely tolerated, and effects such as easy mechanization can be obtained. Moreover, this invention can be realized by utilizing conventional equipment and simply modifying its application, drive mechanism, and operation control. Moreover, since the divided sheet to which adhesive has been applied is cut after reaching the winding position under a predetermined tension, the divided sheet to be used for the next winding is adhered to the winding shaft without distortion or sagging. With this invention, the conventional large amount of labor and time required for tail processing can be changed to a short time by pressing a button, making it more efficient.
The quality effect is enormous.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of one embodiment of the present invention, Fig. 2 is a developed plan view of each sheet roll, trailing sheet and adhesive position, Fig. 3 is an explanatory diagram when winding is restarted, and the fourth and fifth The figures are front and side views of an embodiment of the adhesive application device, and FIG. 6 is a plan view of an example of the adhesive application band material. 4... Adhesive application device, 5... Positioning mechanism thereof, 6... Movable beam, 7... Drive mechanism thereof, 9
...cutting device.

Claims (1)

[Claims] 1. A belt-shaped sheet is divided into a plurality of strips using a slitter,
In the dividing winding device, which feeds the divided sheets onto a centrally driven winding shaft via a contact roller and winds them onto sheet rolls, each divided sheet is provided on the sheet running path between the slitter and the winding position, and an adhesive application device that applies adhesive partially to the sheet; and an adhesive application device that applies adhesive to the divided sheet by the adhesive application device to the vicinity of the wrapping position by driving the winding shaft. a means for advancing the adhesive; a lateral positioning mechanism for laterally positioning the adhesive applying device; a movable beam parallel to each winding roller; and when each wound sheet roll is separated from the contact roller; A beam drive mechanism that moves the beam in parallel from a standby position to near the winding position and brings each divided sheet into contact with the surface of the contact roller, and a cutting device that uses the movable beam as a rail to cut each divided sheet at the winding position. When the sheet roll is wound up, the adhesive application device applies adhesive to the necessary parts of each divided sheet, and after the entire sheet is advanced a little so that the adhesive application position of the divided sheet is near the winding position. , the beam is advanced to the vicinity of the winding position on the surface of the contact roller so that the back side of each divided sheet near the adhesive application position is attached or adsorbed to the winding position, and each divided sheet is then cut by the cutting device. A processing device for the tail end of a split winding sheet.