JP2001322751A - Web splicing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a web splicing device easily a web in a short time without using a temporary fixing tape. SOLUTION: This web splicing device is so constituted that a splicing mount 8 having a web holding face 11 capable of fixing of fixing and holding the web in its whole width and a web cutting groove 12 provided in its center is held to a rotating arm 6 rotatably held to an original cloth holding shaft 4 for holding an original cloth roll 2, an old web 3 is cut, patterns of a new web 3A is matched and cut, and an adhesive tape 16 is stuck to the web surface side on the splicing mount 8, and then the rotating arm 6 is rotated to support the splicing part of the webs 3 and 3A with its turned over so that the adhesive tape17 is stuck to the rear side is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for joining webs in an apparatus for handling webs such as paper and film, such as a web processing machine.

[0002]

2. Description of the Related Art In a web processing machine or the like, a web drawn from a new web is connected to a web being processed, or a defective portion or the like in a web is cut out and the ends of the web before and after the web are connected together. Splicing work is being performed. As a splicing specification, the rear end of one web and the front end of the other web are butt together while matching the pattern of the web, and a bonding tape (usually a tape having an adhesive layer on one side) is attached to both sides thereof. There are many things. The connecting operation was manually performed by a worker using a ruler, a cutter, a temporary fixing tape, a joining tape, and the like, and in the following procedure. 1. On the web roll, the vicinity of the end of the web is cut along a horizontal line using a straightedge to form a connecting edge. If there is a defective portion, the defective portion is cut and removed. 2. The end of one web is overlapped on the other web while matching the pattern, and is temporarily fixed with a small temporary fixing tape (a tape having an adhesive layer on one side). 3. A bonding tape is applied over the entire width of the web on the front side of the web joint. 4. The web is turned over and the excess part of the splice is cut off using a straightedge (this leaves the edges of the webs on both sides abutted). 5. A bonding tape is applied to the back side over the entire width of the web, and the joining operation is completed.

[0003]

However, in such a conventional method, since the web is cut or bonded on an unstable material roll, the work is difficult and requires a great deal of skill. There is a problem that it takes a lot of work time. In addition, the web is turned upside down in order to attach the joining tape to the back side, but this requires a long paper path, and the web becomes slack, it hits the floor and causes hygiene problems, wrinkles and scratches on the web There was also the problem of sticking.
Further, there is a problem that the webs need to be temporarily fixed with a temporary fixing tape, so that extra materials must be consumed.

An object of the present invention is to provide a web connecting apparatus which can easily and quickly connect a web without using a temporary fixing tape. I do.

[0005]

According to the present invention, a web holding surface capable of fixing and holding a web over its entire width and a web substantially at the center of the web holding surface are provided in order to facilitate the web joining operation. A tie provided with a web cutting groove formed in the width direction and having a length longer than the entire width of the web; and a web roll held rotatably on a web holding shaft holding the web roll. And a revolving arm that is outside the maximum outer diameter of the above and that holds the web holding surface outward.

[0006] In the web linking apparatus of this configuration, web linking work can be performed as follows. That is, first, in a state where the running of the web being pulled out from the web roll is stopped, the turning arm is turned to put the web on the web holding surface of the connecting stand, and in that state, the web is fixed and held on the web holding surface. Then, the web is cut in the width direction with a cutter knife using the web cutting groove.
Next, the web roll is removed from the web holding shaft, a new web roll is set on the web holding shaft, the web is pulled out from the web roll, and the web fixed and held on the web holding surface is held. The web is cut in the width direction with a cutter using a web cutting groove in that state, and a pattern is put on the web, and the web is fixed and held on the web holding surface. As a result, the edges of the webs to be joined are brought into a state where the picture patterns are joined and butted, and thereafter, a joining tape is attached to the surface of the joining portion. At this time, the connecting part of the web is supported by the work surface of the cutting table,
The joining tape can be easily attached. Next, swivel the swivel arm to separate the tether from under the web,
Further turning in the same direction, pushing the web from the front side of the web, exposing the back side of the web to the front side, supporting the web with the web, and positioning the web portion on the web. And attach the joining tape to the joint. By the above operations, the edges of the web to be connected are butt-matched with the pattern matched,
A bonding tape can be attached to each side to connect them.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic perspective view showing a paper feeding section of a web processing machine provided with a web connecting device according to a first embodiment of the present invention, and FIG. 2 is a schematic sectional view thereof.
1 is a web processing machine such as a slit device, 2 is a web roll set in a paper feeding unit of the web processing machine 1, and 3 is a web drawn from the web roll 2. When it is necessary to distinguish the new material roll and the web drawn from it from the original material roll and the web, the new material roll and the web are denoted by reference symbol A. 4
Is a web holding shaft holding the web roll 3, 5 is a frame of the web processing machine 1, 6 is a revolving arm that is rotatably held on the web holding shaft 4, 8 is a tip of the revolving arm 6 and a web. This is a tie that is attached outside the maximum outer diameter of the anti-roll.

As shown in FIG. 3, the connecting stand 8 has a number of vacuum suction ports 13 and has a web holding surface 11 capable of fixing and holding the web 3 by vacuum suction over the entire width thereof.
At substantially the center thereof, there is provided a web cutting groove 12 formed in the width direction of the web so as to have a length longer than the entire width of the web, and the swivel arm 6 (see FIG. 1) so that the web holding surface 11 faces radially outward. 2). The web cutting groove 12 is for guiding by inserting the tip of a cutter knife for cutting the web. An operator holds the cutter knife in his hand and inserts the tip into the web cutting groove 12. By moving the inside of the groove, the web can be easily and accurately cut in the width direction. The swing arm 6 is shown in FIGS. 4 (a), (c), and (e).
And stopped at each position shown in FIG. Here, as means for fixing the turning arm 6 so as not to move at a predetermined position, a ball plunger,
Latch, set screw, etc. are optional.

Next, a web connecting operation using the connecting device having the above-described configuration will be described. During a normal operation of the web processing machine, the connecting stand 8 is retracted to the position shown in FIG. 4A so as not to interfere with the running of the web 3. When the web roll 2 runs out and it is necessary to switch to a new web roll, the running of the web 3 is stopped, and the turning arm 6 is turned to the position shown in FIG. At a position where the web 3 rides on the web holding surface 11.
Next, the web 3 is fixed and held on the web holding surface 11 by applying a vacuum to the tie 8. The state at this time is shown in FIG.
This is the state shown in FIG. Next, the operator holds the cutter knife 14 in his / her hand, inserts the cutting edge into the web cutting groove 12, and moves along the groove 12, thereby cutting the web 3 in the width direction. Then, the web holding shaft 4 (FIG. 2)
The web 3 on the web roll side is removed from the web holding surface 11.

Next, as shown in FIG. 5B, a new material roll 2A is set on the material holding shaft 4 (see FIG. 2).
Then, the new web 3A drawn out is put on the web holding surface 1
The web 3A is superposed on the web 3 sucked and held in 1, the picture is matched, and the web 3A is also sucked and held on the web holding surface 11. Next, the operator holds the cutter knife and inserts the cutting edge into the web cutting groove 12, and
By moving the web 3A, the web 3A is cut, and unnecessary portions on the tip side are removed. As a result, as shown in FIG. 5C, the webs 3 and 3A are held on the web holding surface 11 in a state where the webs 3 abut against each other.
An operator attaches the joining tape 16 to the upper surface of the joint between the webs 3 and 3A. At this time, since the connecting portions of the webs 3 and 3A are supported by the web holding surface 11, the joining tape 16 can be easily and neatly stuck.

As shown in FIG. 4C, the webs 3, 3A
After attaching the joining tape 16 to the front side of the joint,
This time, the swivel arm 6 is swung in a direction in which the splicing stand 8 moves away from the back surface of the web 3, and further spun as shown in FIGS. 5 (d) and 5 (e). I push it. Then, when the connecting base 8 is moved to the position shown in FIG. 4E and stopped, the connecting portions of the webs 3 and 3A are placed on the web holding surface 11 first, and the joining tape 1
6 with the surface side facing down facing downward,
Is to be held with the back side to be attached facing upward. In this state, the joining tape 17 is attached to the joint between the webs 3 and 3A. In addition, when the connecting portion of the webs 3 and 3A is at a position separated from the web holding surface 11 when the connecting base 8 is set to the position shown in FIG. 4E, the webs 3 and 3A are pulled by hand. What is necessary is just to perform positioning.

Thereafter, as shown in FIG. 4 (f), the turning arm 6 is turned back to the original position, and
A is rotated in the direction in which the web is taken up, so that the web 3A
Is wound on the raw roll 2A to eliminate the slack. As described above, the edges of the webs to be connected are butted together with the pattern matched, and the bonding tape 1 is attached to both sides thereof.
6 and 17 can be attached and connected.

As described above, when this connecting device is used, the cutting of the old web 3 and the cutting of the new web 3A are performed by using the web cutting grooves 12 while the webs 3 and 3A are fixed to the web holding surface 11. Can be performed with the web 3, 3A fixed to the web holding surface 11, so that it can be performed easily and promptly, and it is necessary to use a temporary fixing tape. Nor. Furthermore, since the joining tape can be attached to the lower surface side of the web by simply turning the swivel arm 6, the web can be turned over and the connecting portion can be held on the web holding surface 11,
This can be easily performed in that state, and the drawbacks that have conventionally arisen when performing the operation of turning over the web and applying the joining tape can be eliminated. As a result, the connection work time can be significantly reduced, and the connection quality can be improved, stabilized, and skillless.

FIG. 6 shows a web connecting device according to a second embodiment. In this embodiment, the second turning arm 6A is attached to the turning arm 6 supporting the connection stand 8.
Is formed as an integral structure, and the back surface mounting table 8A is provided at the tip thereof.
Is installed. The back-side adhering table 8A is for supporting the web joining portion when attaching the joining tape 17 to the back side of the web joining portion, and has a flat web supporting surface 20 on the radially outer surface. It has. Other configurations are the same as those of the embodiment shown in FIGS.

Next, a web linking operation will be described. During normal operation of the web processing machine, the connecting stand 8 and the back-side attaching base 8A are retracted to the positions shown in FIG. 6A so as not to interfere with the running of the web 3. When the remaining amount of the material roll 2 is exhausted and it is necessary to switch to a new material roll, as in the first embodiment, FIG.
As shown in (b) and (c), by the same operation as in the first embodiment, the tips of the new and old webs 3 and 3A are cut and butted, and the joining tape 1 is attached to the surface side of the joint portion.
6 is pasted. When this attachment is completed, the pivoting arms 6, 6A are pivoted next as shown in FIGS. 6D and 6E, so that the connecting portions of the webs 3, 3A are brought into contact with the front side (the joining tape 16 first). The side on which the bonding tape 17 is to be newly bonded is faced downward, and the back side to which a new bonding tape 17 is to be bonded is faced up and supported by the back surface bonding stand 8A, and the bonding tape 17 is bonded to the back side. Thereafter, as shown in FIG. 6 (f), the turning arms 6, 6A are turned back to the original position, and the web roll 2A is rotated to wind the web 3A onto the web roll 2A. Eliminate slack. As described above, the edges of the webs to be connected can be abutted in a state where the patterns are aligned, and the joining tapes 16 and 17 can be attached to both surfaces thereof to be connected. In this embodiment, after the bonding tape 16 is attached to the front surface of the web, there is an advantage that the angle at which the swivel arms 6 and 6A are swiveled to the position for attaching the bonding tape 17 to the back surface of the web can be reduced. Can be

In the above-described embodiment, the connecting stand 8 and the back-side adhering stand 8A are arranged at positions 180 degrees apart from each other with respect to the center of rotation. However, the mounting angle can be changed as appropriate. Further, instead of forming the swing arms 6 and 6A into an integral structure, each of the swing arms 6 and 6A may be configured to be able to swing separately. When the swing arms 6 and 6A have an integral structure as in the illustrated embodiment, there is an advantage that the structure can be simplified and the operation of turning can be simplified.

In the above embodiment, the connecting base 8
The web is fixed and held by vacuum suction on the web holding surface 11, but the web fixing and holding means is not limited to vacuum suction, and other methods such as fixing, holding, and tackiness of the web by static electricity are used. Fixing and holding the web with a tape, fixing and holding from above with a magnet, and the like may be used.

In the above-described embodiment, the turning arms 6, 6A are turned by hand. However, the turning arms 6, 6A may be turned using a motor, an actuator or the like.

[0019]

As described above, according to the present invention, a web holding surface capable of fixing and holding a web over its entire width, and a substantially center of the web holding surface, in the width direction of the web and more than the full width of the web. The new and old webs are cut by using a configuration in which a tie with a web cutting groove formed in a long length is held by a swivel arm that is rotatably held on a web holding shaft holding a web roll. It is possible to quickly and easily carry out the work of aligning the picture and attaching the joining tape to the front side of the web on the connecting stand without using the temporarily used tape, and the swing arm is swung. As a result, the web can be turned upside down and supported by the connecting base, so that the bonding tape attaching operation on the back side can be easily performed, and the connecting operation time can be greatly reduced. Improvement and stabilization of the joint quality with wear, has such an effect can be achieved skills-less.

Here, if a back surface attaching table and a revolving arm that can hold and rotate the back surface are provided, the joining tape attaching operation to the back surface side of the web is performed using the back surface attaching table. And the effect of reducing the turning angle of the turning arm can be obtained.

Further, if the swing arm holding the connecting stand and the swing arm holding the back surface attaching stand are integrally swung, the structure of the swivel arm can be simplified and the operation of swiveling those arms can be performed. Can be easily obtained.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a paper feeding unit of a web processing machine provided with a connecting device according to a first embodiment of the present invention.

FIG. 2 is a schematic sectional view of a portion shown in FIG.

FIG. 3 is a schematic perspective view of a connection base of the connection device shown in FIG. 1;

FIG. 4 shows (a), (b), (c), (d), (e),
(F) Schematic cross-sectional view illustrating the procedure of the connecting work

FIGS. 5A, 5B, and 5C are schematic cross-sectional views illustrating a connection operation procedure.

FIG. 6 (a), (b), (c), (d), (e),
(F) is a schematic sectional view for explaining the procedure of the connecting operation in the connecting device according to the second embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 web processing machine 2, 2A material roll 3, 3A web 4 material holding shaft 5 frame 6, 6A swivel arm 8 connecting stand 8A back surface attaching stand 11 web holding surface 12 tape cutting groove 14 cutter knife 16, 17 joining Tape 20 web support surface

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masayuki Murata 1-1-1, Ichigaya Kagacho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Inventor Teruo Tsuchiya 1-chome, Ichigaya-cho, Shinjuku-ku, Tokyo No. 1-1 Dai Nippon Printing Co., Ltd. F-term (reference) 3F064 AA01 AA04 BB02 BB06 BB07 BB18 BB23

Claims (3)

[Claims] 1. A web holding surface capable of fixing and holding a web over its entire width, and substantially at the center of the web holding surface.
A tie having a web cutting groove formed in the width direction of the web and having a length longer than the entire width of the web, and a web holding shaft holding the web roll so as to be rotatable; A web linking device having a turning arm that is outside the maximum outer diameter of the anti-roll and that holds the web holding surface outward. 2. A backside attaching table having a web supporting surface for supporting a web over the entire width thereof, and a backside attaching table rotatably held by the material holding shaft. 2. The web connecting device according to claim 1, further comprising a turning arm that is outside a maximum outer diameter and holds the web support surface outward. 3. The web splicing device according to claim 2, wherein the swivel arm holding the splicing stand and the swivel arm holding the back surface attaching stand are swung together.