JPH02219719A - Method and apparatus for gathering in roll package - Google Patents

Abstract

PURPOSE:To fold a fold formed offset with respect to a radial direction of an end face of a material roll toward inside of the end face and make a folding line occurring at the end face of the material roll direct toward the radius of the end face as much as possible by inserting a moving piece via a specified angle toward the radius of a cylindrical part. CONSTITUTION:Respective installation angles at a guide rod 15 and a ball screw 16 are provided tilted via a small angle alpha toward a direction of a radius of a support plate 11. Since each moving piece 13 is moved along the guide rod 15, a fold 6 is formed slantly with respect to the direction of the radius of an end face 1a. By folding this slantly formed fold 6 inward, a folding line formed at the end face 1a of a material roll is formed in a status closer to the radial direction of the end face, that is, in a state directed toward the center.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a gathering method and device for roll packaging, and in particular to a roll that can finish an elegant appearance even on large-diameter raw materials. The present invention relates to a gathering method and device in packaging.

[Conventional technology]

For example, when wrapping a roll of paper, film, etc. with wrapping paper, the roll of paper, film, etc. is usually wrapped in wrapping paper that has a width sufficient for the length of the roll. After that, finishing is done by folding (gathering) the cylindrical parts (cylindrical parts) that protrude from both ends of the original fabric along the end faces of the original fabric. Conventionally, the outer diameter of the original fabric was several lOIII1
For products with a relatively small diameter of about 1,000 yen, gathering in roll packaging is carried out using a device as shown in FIG. 13 or 14, for example. In the figure, reference numeral 1 denotes the raw material to be wrapped, 2 the wrapping paper, 2a the end (rtJ-shaped part) of the wrapping paper 2 protruding from the end la of the raw material I' in a cylindrical shape, and 3 the raw material l. A paper tube 4 is located at the center of the paper tube for holding the roll shape of the raw fabric l, and 4 is a roller that rotatably supports the raw fabric l. As shown in FIGS. 13 and 14, on the outer periphery of the cylindrical portion 2a of the wrapping paper 2, a plurality of claws ( Moving piece) 5,5. ...are arranged in a circle.

Now, from the state shown in Figure 13.14, the six claws are 5°5...
When folded inside the cylindrical portion 2a as shown by the arrow in FIG. 13, a mountain-shaped fold 6.6. ... is formed.

Thereafter, when the raw fabric l with the claw 5 fixed thereon is slowly rotated on the roller 4, the folds 6 are folded (folded) along the end surface 1a of the raw fabric 1 by the claw 5,
As a result, gathering is performed as shown in FIG. 17. Normally, after the gathering is completed, a label sticker or the like is attached to the center portion 7, thereby sealing the gathering portion.

[Problem to be solved by the invention]

By the way, when the outer diameter of the raw fabric 1 is relatively small as in the above example, even with the apparatus shown as an example above, it is possible to perform gathering that is acceptable for product quality to some extent. However, when the original fabric 1 has a large diameter, the following disadvantages occur.

That is, as described above (when gathering is carried out by the conventional means), as shown in FIG. Therefore, as shown in Figure 17,
When folding the folds 6 toward the end surface 1a, the fold line C appearing on the end surface 1a is deviated greatly from the circular radius of the end surface 1a, and is formed in an oblique direction.

Even in the above situation, if the original fabric 1 has a small diameter, the folds 6 that are formed will also be small, so they will not deviate extremely from the radial direction, and no major inconvenience will occur. Since most of the folded portions are completely damaged by pasting of the label stickers and the like mentioned above, the fold line C can be made completely invisible.

On the other hand, if the original fabric 1 has a large diameter, the folds 6
It will be understood that as the angle increases, the fold line C deviates obliquely from the radial direction of the end surface 1a. As a result, the folds 6 overlap each other in the center portion 7 with considerable deviations from each other, which not only results in an inferior appearance (but also requires a large label seal for sealing).

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method and device for gathering in roll packaging, which can perform gathering with an elegant appearance even for large-diameter raw materials. It is.

[Means to solve the problem]

The invention according to claim 1 provides a method for inserting a plurality of movable pieces into a cylindrical part protruding from both ends of the original fabric of wrapping paper wound into a roll on an original fabric from the outer surface side of the cylindrical part. In the gathering method in roll packaging, in which the gathering is completed by forming chevron-shaped folds between the moving pieces, and then folding the folds along the end face of the original fabric, It is characterized by inserting the cylindrical part through a predetermined angle with respect to the radial direction of the cylindrical part, and thereby folding the fold formed at a predetermined angle with respect to the radial direction of the end surface to the inner side of the end surface. That is.

Further, the invention according to claim 2 provides a method for finishing the wrapping paper by folding the cylindrical portions protruding from both ends of the original fabric so as to follow the end faces of the original fabric. A gathering device for roll packaging, wherein a plurality of gathering devices are arranged in a circular shape at equal intervals along the outer periphery of the cylindrical portion, and are inserted into the cylindrical portion at a predetermined angle with respect to the radial direction of the end surface. It is characterized by having a moving piece.

[Effect]

Inserting a plurality of movable pieces from the outer surface of the cylindrical part toward the center of the cylindrical part protruding from both ends of the original web of wrapping paper wound in a roll on the original web. As a result, chevron-shaped folds are formed between the moving pieces. Gathering is performed by folding these folds into the end face of the original fabric. At this time, the movable piece is inserted at a predetermined angle with respect to the radial direction of the cylindrical part, so the folds are folded into the edge of the original fabric. It is formed obliquely offset with respect to the radial direction of the end face. By folding (folding) these diagonally formed folds inward,
The fold line formed on the end face of the original fabric is formed in a state closer to the radial direction of the end face, that is, in a state facing toward the center.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 12.

In FIGS. 1 and 2, what is generally designated by the reference numeral 10 is a roll packaging gathering device (hereinafter abbreviated as "gathering device") according to the present invention. Also,
In FIG. 1, etc., the same reference numerals as those in FIG. 13, etc., indicate the same components, and the explanation thereof will be omitted.

The reference numeral 11 in the figure is a disk-shaped support plate that is provided parallel and concentrically to the end surface 1a of the web 1, and is used to support a moving piece to be described later, a driving part of the moving piece, etc. be. The support plate 11 is supported in this case by a frame 12 and has a diameter of about 11 in this embodiment. A plurality of movable pieces 13. l
3°... are the feeding mechanisms 14, 14. It is attached via... In this embodiment, 12 of these movable pieces 13 are provided.

As shown in FIG. 1, the feed mechanism 14 includes a guide rod 15, a ball screw 16 provided parallel to the guide rod 15, support members 17 and 17 that support both ends of the guide rod 15 and the ball screw 16, and the like. It is composed of The guide rod 15 and the ball screw 16 extend approximately radially from the outer circumferential portion of the support plate 11 to near the center of the support plate 11.
The books are evenly spaced from each other. i.e. 3 each other
They are arranged radially with an opening degree of 0°.

However, the individual installation angles of these guide rods 15 (ball screws 16) do not coincide with the radial direction of the support plate 11 at all, and as shown in FIG. 10o).

A timing pulley 18 is provided at one end of the ball screw 16, that is, one end located on the outer peripheral side of the support plate 11. On the other hand, near the outer periphery of the other surface (back surface) of the support plate 11, twelve servo motors 19. l9. ... are provided, and a timing pulley 20 provided on the output shaft of these servo motors 19 and the ball screw 1 are provided.
6 is connected to a timing pulley 18 via a timing belt 21. A movable piece 13 is attached to the guide rod 15 and the ball screw 16.
A movable base 22 for holding the guide rod 15 is provided so as to be screwed into the ball screw 16 and to be slidable on the guide rod 15.

Since the movable piece 13 is attached to the movable base 22,
In this embodiment, the inner edge 2 facing inward of the support plate 11
3a has a wedge-shaped movable piece main body 23, and two projecting members 24° 24 provided on the front edge of the movable piece main body 23 (on the side opposite to the support plate). It becomes. The two springing members 24 are provided parallel to the guide rod 15 and the like, and have a length that is at least longer than the movement stroke of the moving piece 13.

Further, these two projecting members 24 are pin-coupled with one end facing inward of the support plate 1l by a pin 25 provided perpendicularly to the support plate 11. Further, a second guide rod 26 is provided on the supporting plate 11 side of the springing member 24 so as to be parallel to the guide rod 15 and the like by being fixed to the movable piece main body 23. In this case, the movable piece main body 23 has a shape in which the inner end portion to which the pin 25 is fixed extends in the opposite direction to the support plate 11, and the second guide rod 26 extends in the opposite direction to the support plate 11. The back surface 23b' of the portion 23b and the movable piece main body 2
3 and a support piece 28 provided on the outside. A sliding block 27 is provided on this second guide rod 26 . Further, this sliding block 27 is connected to the tip of a rod 31a provided in an air cylinder 31 via a connecting rod 30 extending parallel to the second guide rod 26 toward the support piece 28. ing. Reference numeral 32 in FIG. 4 indicates the movable piece main body 23.
This is a bearing for supporting the connecting rod 30 slidably in the axial direction. The air cylinder 31 in this case is an extremely small item and is called a pin cylinder. This air cylinder 31 is fixed to the support piece 28, and is moved to the sliding block 27 via the connecting rod 30 by the operation of a compressed air adjustment device (not shown).
can be pulled toward the support piece 28 side. Further, a second pin 33 is provided on the surface of the sliding block 27 facing the springing member 24 side.
5, the pin 33 protrudes perpendicularly to the support plate 11, and as shown in FIG. has been done. Pin insertion holes 34 a, 34 a are formed at the other ends of the link members 34 and 34, respectively, and also penetrate through the longitudinal center of the springing member 24 in a direction perpendicular to the support plate 11. Pin insertion hole 24 a
, 24a are formed respectively, and a third pin 35 is inserted into both of these push-through holes 24a, 34a, so that the other ends of the pop-out member 24 and the link member 34 are connected by a pin. It becomes.

Next, the function of the gathering device 10 configured as described above and the gathering method in roll packaging according to the present invention will be explained.

The raw fabric 1 in this example has a diameter of approximately 500 mm! 1111
It is assumed that the wrapping paper 2 is already wrapped around the original fabric 1 in the form of a roll.

First, the raw material 1 to be gathered is
a is set so that it faces parallel to the support plate 11 of the gathering device 10 and is concentric with the support tall. At this time, the eleven moving pieces 13. l
3. As shown in FIG.
The cylindrical portion 2a of the wrapping paper 2 protruding from the movable pieces 13, l3. ... is inserted into the inside of the circle formed by the inner edge 23a of. The position of the web l in the axial direction is only a few meters where the end face 1a reaches the front end of the moving piece 13 (the front end of the pop-out member 24).
(Refer to the position of the chain line in Figure 1).

Once the original fabric 1 is set as described above, the 12 servo motors 19.19. Activate... As a result, the timing pulley 18, timing belt 2
1. The ball screw 16 rotates via the timing pulley 20. Since the movable base 22 guided by the guide rod 15 is screwed into the ball screw 16, the movable base 22 moves along the guide rod 15 due to the rotation of the ball screw 16, and thereby the 12 movable pieces 13 move. 7th
As shown in the figure (- Guide rod 15 (ball screw 16)
) inwardly of the support plate 11. The movable pieces 13 are moved inward to the cup, so that the inner edges 23a of each movable piece 13 become close to each other.

By moving the movable piece 13 inward on the support plate 11, the wrapping paper 2
The portions of the cylindrical portion 2a that are in contact with the inner edges of the movable pieces 13 are pushed inward, and as a result, the cylindrical portion 2a
As shown in FIG. 8, those moving pieces 13, 13.・
Into the troughs pushed inward by the . The folds 6 here are formed in a triangular shape like the one shown in FIG. 2a), these folds 6 are formed obliquely shifted from the radial direction of the end surface 1a. Further, the pop-out member 24 is
Since it moves along the end surface la of the raw fabric l, the valley portion A is almost pressed against the end t la by the springing member 24 .

When the above state is reached, a compressed air adjustment device (not shown) is operated to operate each moving piece 13.13. The air cylinder 31.31. ...supplies compressed air to... When the air cylinder 31 receives compressed air, it contracts its rod 31a and closes the connecting port and door 30.
the sliding block 27 through the second guide rod 26
The cylinder 31 is moved along the axial direction toward the support piece 28 to which the cylinder 31 is fixed.

As described above (when the sliding block 27 moves, the two link members 34, 34 which connect the sliding block 27 and the pop-out member 24, 24 by pin connection cause the two link members 34, 34 to connect as shown in FIG. The spring-out members 24.24 are opened in a V-shape with the pin 25 as the center of rotation.At this time, the opening degree formed by both spring-out members 24.24 is 30.
'It's Toshishita. In this way, the 12 moving pieces 13
As shown in FIG.
One of the spring-out members 24 of No. 3 is in a state in which they are parallel to each other and substantially close to each other. By the way, since a triangular fold 6 is formed between each movable piece 13, the above operation causes this fold 6 to open between adjacent spring-out members 2.
The triangular shape is crushed into a tightly creased tsuba-like shape (Fig. 10, 1).
(See Figure 1). However, as mentioned earlier, each movable piece 13 moves in an oblique direction offset by a predetermined angle α (100 in the example) with respect to the radial direction of the support plate 11, so the folds formed here The pleats 6 are also formed obliquely with respect to the radial direction of the end surface 1a, as shown in FIG.

Once the above state is reached, the original fabric 1 may be rotated in the direction of the arrow in FIG. 10 while the movable pieces 13 are in the above state. With the above rotation, l 21[S
] The shadow-formed folds 6 are pushed down inward of the end surface 1a of the web 1 by the moving piece 13 (springing member 24),
Gathering is completed as shown in FIG. The gathering part completed in this way is folded into 6 folds.
is formed in an oblique direction, so that the fold line C appearing on the end surface 1a approaches the radial direction of the end surface 1a.

Note that when rotating the original fabric 1, each moving piece 13, 13. ... is rotated with the gap between the protruding members 24 that are close to each other being slightly widened by slightly returning the folding member 24 to the outer circumferential direction, the folding of the fold 6 into the end surface 1a is smooth. It is preferable to do so.

After gathering, the servo motor 19°19,
By reversing..., all the moving pieces 13 are moved away from the center of the end surface 1a to the outer periphery. However, at this time, in order to prevent the folded gathering part from returning due to the curl of the paper, the pop-out member 24 is kept in an unfolded state, and the pop-out member 24 is not completely removed from the end surface 1a, but at least the outer periphery is part of the movable part. Leave it in a state where it is held down by 13. Then, after sealing the gathering part by, for example, pasting a label sticker on the center part 7 of the gathering in this state, the movable piece 13 is moved back to the initial position and the pop-out member 24 is closed.

As described above, according to the gathering device IO, the movable piece 13 is inserted in a state offset by a predetermined angle with respect to the radial direction of the cylindrical portion 2a, so that the folds 6 are formed obliquely with respect to the radial direction of the end surface 1a. By folding it inward, the folding line C is formed closer to the end surface 1a in the radial direction. Therefore, the appearance is superior to the conventional gear ring, and the central part 7 of the gather ring is also
As is clear from the comparison with Fig. 7, since the deviation of the overlapping portion of each fold 6 is reduced, when sealing the center portion 7 with a label sticker, etc., the label sticker can be small, making it economical. There is also.

Furthermore, in this embodiment, the moving piece 13.13°...
inward to form folds 6 on the cylindrical portion 2a of the wrapping paper 2.
After forming, the folded folds 6 are sandwiched by spreading the spring-out member 24, and since the triangular folded folds 6 are formed into flakes (feathers) in advance, the folded folds 6 are formed on the end surface by rotating the original fabric 1. When folding into 1a, the folds 6 can be folded in an extremely orderly manner without being disturbed.

Furthermore, it goes without saying that the present gathering device 10 can be applied not only to the large-diameter original fabric 1 but also to the small-diameter original fabric, and the above-mentioned effect is the same for the small-diameter original fabric 1 as well. It goes without saying that even if the original fabric 1 has a small diameter, it is possible to perform gathering with a better appearance than that achieved by the conventional apparatus.

In the embodiment, the movable piece having the above-mentioned configuration was used, but the movable piece according to the present invention is not limited to this, and for example, a conventional movable piece as shown in FIGS. (Claw 5) may be used. Even in that case, the same effect can be obtained if the claws 5 are configured to be inserted into the cylindrical portion 2a at a predetermined angle with respect to the radial direction.

In addition, in the embodiment, the original fabric 1 is rotatably supported so that the original fabric 1 is rotated when folding the folds 6. Since it is sufficient that relative rotation occurs between the movable pieces 13 and the movable pieces 13, a configuration may be adopted in which each movable piece 13 is rotated with respect to the fixed original fabric l.

〔Effect of the invention〕

As explained above, according to the present invention, the movable piece is inserted at a predetermined angle with respect to the radial direction of the cylindrical part, so that the folds are offset with respect to the radial direction of the end surface of the original fabric. By folding the folds thus formed inward toward the end surface, it becomes possible to form the fold line generated on the end surface of the original fabric so that it points as much as possible in the radial direction (direction toward the center) of the end surface. As a result, it is possible to create a product with a beautiful appearance, and the misalignment of the overlapping part of the folds in the center of the gathering is also reduced, so it is possible to downsize the sealing label and reduce costs. It is possible to achieve excellent effects such as:

[Brief explanation of the drawing]

Figures 1 to 12 show an embodiment of the present invention. Figure 1 is an overall elevational view showing a roll packaging gathering device together with wrapping paper to be processed, and Figure 2 is an illustration of the roll packaging gathering device. An overall perspective view, FIG. 3 is a front view of the support plate on which the feeding mechanism etc. are attached, FIG. 4 is a side view showing the feeding mechanism, and FIG. 5 is a front view showing the springing member in the movable piece and its function. , Fig. 6 is a front view illustrating the operation of the roll packaging gathering device according to this embodiment, and shows the support plate with the feeding mechanism attached, Fig. 7 is a front view also showing the support plate, and Fig. 8 is the original. Front view showing the opposite end surface, No. 9
The figures are for explaining the operation of this embodiment, and are a front view showing the support plate on which the feeding mechanism is attached, Figure 1O is a front view showing the end surface of the original fabric, Figure 11 is a side view thereof, and Figure 12 is a front view showing the end surface of the original fabric after gathering has been completed;
3 to 17 show the prior art, and FIG. 13 is a side view showing the gathering device together with the original fabric, etc., and FIG.
The figure is a front view, FIG. 15 is a side view of the original fabric showing the function of the gathering device, FIG. 16 is a front view of the same, and FIG. 17 is a front view of the completed gathering unit. l...Original fabric, 1a...
...End face, 2...Wrapping paper, 2a.
...Cylindrical part, 6...Folding fold, 10...Roll packaging gathering device 13...
...Moving piece. Figure 6 Figure 7 Figure 4 Figure 8 Figure 9 Figure 5 Figure 11 Figure 10 Figure 12

Claims (2)

[Claims] (1) A plurality of movable pieces are inserted from the outside of the cylindrical part into the cylindrical part protruding from both ends of the original web of wrapping paper wound in a roll on the original web to move them. In a gathering method in roll packaging, in which gathering is completed by forming chevron-shaped folds between the pieces and then folding the folds along the end surface of the original fabric, each of the moving pieces is moved along the radius of the cylindrical part. A roll packaging characterized in that the fold is inserted at a predetermined angle with respect to the direction, and the folds formed at a predetermined angle with respect to the radial direction of the end face are folded inward of the end face. Gathering method. (2) A gathering device in roll packaging for finishing wrapping paper by folding in the cylindrical parts protruding from both ends of the wrapping paper along the end surface of the wrapping paper, which is wound into a roll against the original wrapping paper. A plurality of movable pieces are arranged in a circular shape at equal intervals along the outer periphery of the cylindrical part, and are inserted into the cylindrical part at a predetermined angle with respect to the radial direction of the end surface. Gathering device for roll packaging.