JP2002020003A - Device and method for automatically joining web - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set a second roll in such a manner that the angular position of a starting end need not correspond to the rotational angle of a rotational angle sensor block. SOLUTION: When the second roll is set to a second roll supporting shaft, the rotational angle of the starting end of a web of the second roll to a rotary arm is inputted, the rotational angle of the second roll supporting shaft to the rotary arm is detected, the second roll supporting shaft is rotated based on the rotational angle of the starting end of the web of the second roll and the rotational angle of the second roll supporting shaft, the starting end of the web of the second roll is set to the position facing a joining means, and the starting end of the web of the second roll is joined in the vicinity of a terminating end of the web of a first roll.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic web splicing apparatus and an automatic web splicing method.

[0002]

2. Description of the Related Art Conventionally, when a strip-shaped sheet material made of resin, paper, cloth, or the like is processed to produce a container, bag, lid (lid), etc., the sheet material as a raw material is a core. Is supplied to the manufacturing process in the form of a roll wound around.

[0003] In the manufacturing process, the material roll is set rotatably in a material supply device.
For example, by a web feeder consisting of a plurality of rollers,
The material is automatically unwound from the rotating material roll and sent to a processing device for processing the material, thereby producing containers, bags, lids, and the like.

In the above-mentioned manufacturing process, just before the first set roll is consumed, so that the supply of the raw roll is not interrupted, the second set roll is set at the end of the raw roll. The starting ends of the anti-rolls need to be added and connected, and the raw material needs to be supplied continuously. Therefore, a device for automatically adding the raw material to the raw material supply device,
That is, the automatic splicing device of the raw material is attached.

FIG. 2 is a plan view of a conventional automatic splicing apparatus of a web, and FIG. 3 is a side view of the conventional automatic splicing apparatus of a web.

As shown in FIG. 3, an automatic splicing device 140 for a web has a turret arm support frame 141 and a roller support frame 142.

The turret arm support frame 141
, The turret arm 111 is rotatably mounted around the center of the turret arm 111, and an arm supporting two auxiliary rollers 147 coaxially with the center of the turret arm 111 is rotatably mounted. .

As shown in FIG. 2, at both ends of the turret arm 111, a roll already set is provided.
That is, the first material roll 131a and the roll set next, that is, the roll support shafts 112a and 112b that support the second material roll 131b are rotatably attached. Then, the roll support shafts 112a, 112
Support shaft sleeves 113a and 113b are provided surrounding 2b, respectively.

Further, the support shaft sleeves 113a, 113
3b surrounding the sensor block support sleeve 114a,
The reference numerals 114b are provided so as to be relatively movable in the axial direction, that is, slidable. Key grooves (not shown) are formed on the outer peripheral surfaces of the support shaft sleeves 113a and 113b and the inner peripheral surfaces of the sensor block support sleeves 114a and 114b, respectively.
6a and 116b are inserted, and the support shaft sleeve 113 is inserted.
a, 113b and sensor block support sleeve 114
The keys 114a and 114b are slidable in the axial direction by the keys 116a and 116b, but are coupled so as to rotate integrally.

Rotation angle sensor blocks 115a and 115b are fixed to the outer peripheral surfaces of the sensor block support sleeves 114a and 114b, respectively. A proximity sensor (not shown) is provided with the rotation angle sensor block 11.
By detecting the proximity of 5a and 115b, it is detected that the rotation angles of the roll support shafts 112a and 112b have reached a predetermined angle.

Furthermore, the sensor block support sleeve 11
4a, 114b are bearings 120a, 120b, 1
The turret arm 111 is connected via the
Are mounted rotatably and immovably in the axial direction.

Adjustable outer cylinders 117a and 117b are fixed to both ends of the turret arm 111 on the same axis as the roll support shafts 112a and 112b, respectively. Then, female threads are formed on the inner peripheral surfaces of the adjusting outer cylinders 117a and 117b, and the adjusting inner cylinders 118a and 118b having male threads formed on the outer peripheral surface are screwed.

The support shaft sleeves 113a, 113
One end (left end in FIG. 2) of the bearing 3 b
a, 122b through the adjusting inner cylinder 118a, 118b
To be rotatable and immovable in the axial direction.

One end (the right end in FIG. 2) of the roll support shafts 112a and 112b is
Each of the cores 130a and 130b of 1b is fitted (fitted) to one end (the left end in FIG. 2). In addition, the core 13
Roll holders 123a and 123b are fitted into the other ends (the right ends in FIG. 2) of the first and second cores 130a and 130b, respectively.
It is sandwiched and fixed between 112b and roll holders 123a and 123b.

A lower pester arm 145 is swingably mounted on the roller support frame 142, and a lower pester roller 146 is rotatably mounted on the lower pester arm 145. Further, a tension arm 143 is swingably mounted on the roller support frame 142, and a tension roller 144 is rotatably mounted on the tension arm 143. Further, the roller support frame 14
A plurality of transport rollers 148 for transporting the web 132 unwound from the first web roll 131a are rotatably attached to 2. Here, it is desirable that at least one of the transport rollers 148 is rotated by a power source such as a motor (not shown) to transport the raw fabric 132.

The automatic splicing device 14 for the web 132 having the above configuration.
At 0, first, the first material roll 131a is set at one end of the roll support shaft 112a.

Next, the raw material 132 is fed from the first material roll 131a, passes through each of the transport rollers 148 and the tension roller 144, and is fed into a processing device (not shown). Then, the raw material 132 of the first raw material roll 131a is controlled so that the supply of the raw material 132 is not interrupted.
The second material roll 131b is set at one end of the roll support shaft 112b with a margin in time before is consumed.

At this time, as shown in FIG.
2 is unrolled from the lower side of the first material roll 131a, that is, is set in a state of being pulled down, and the second material roll 131b is also set in a state of being pulled down.

Next, the turret arm 111 is rotated counterclockwise in FIG. When the turret arm 111 is rotated to the standby position, the turret arm 111 is stopped.

Next, the lower Pester arm 145 is swung, the lower Pester roller 146 is raised, and is placed near the refilling connection position.

Here, since the rotation angle of the rotation angle sensor block 115b corresponds to the starting end of the material roll 132 of the second material roll 131b, the second angle is maintained until the proximity sensor detects the rotation angle sensor block 115b. Material roll 131b
Is rotated, the material 1 of the second material roll 131b is rotated.
32 is located at a position where the starting end faces the lower pester roller 146. In addition, an adhesive is applied or an adhesive tape is stuck to the starting end of the material roll 132 of the second material roll 131b.

Next, the lower pester roller 146 is further raised and placed at the splicing connection position, and the web 132 fed from the first web roll 131a is fed to the web of the second web roll 131b. 132, and the starting end of the web 132 of the second web roll 131b is
The raw material roll 131a is fixed to the raw material 132 by the adhesive or the adhesive tape, and is added and connected.

By using the automatic web splicing device 140, it is possible to automatically and promptly replace the web roll and add the end portions of the web 132 without stopping the processing apparatus. As a result, the raw material 132 can be continuously supplied without requiring any manpower, so that not only the overall cost of the process of processing the sheet material is reduced, but also the throughput is improved.

[0024]

However, in the conventional automatic web splicing apparatus 140, when the second web roll 131b is set to one end of the roll support shaft 112b, the second web roll 131b is set. It is necessary to set the starting end of the raw material 132 of 131b so as to correspond to the rotation angle of the rotation angle sensor block 115b. Then, when the turret arm 111 is rotated to the standby position, the second material roll 131b is rotated until the proximity sensor detects the rotation angle sensor block 115b, whereby the material of the second material roll 131b is rotated. Since the starting end of the web 132 is located at a position facing the lower pester roller 46, the starting end of the web 132 of the second web roll 131b does not correspond to the rotation angle of the rotation angle sensor block 115b. In this case, the starting end of the web 132 of the second web roll 131b is not fixed to the web 132 of the first web roll 131a.

However, since the material roll is generally heavy, the second material roll 131b is connected to the roll supporting shaft 11b.
When setting at one end of 2b, the second material roll 131
It is hard labor to rotate b to set the starting end of the web 132 to correspond to the rotation angle of the rotation angle sensor block 115b.

The rotation angle sensor block 115b
After the second material roll 131b is set on one end of the roll support shaft 112b, the angular position of the rotation angle sensor block 115b is set to the material 132. It is also conceivable that the rotation angle sensor block 115b attached to the outer periphery of the roll support shaft 112b, which is a member that rotates at high speed, is attached to an uncovered portion so that the angular position can be adjusted. Is a safety issue.

Further, the set first material roll 1
If the starting end of the raw material 132 of the base material 31b does not correspond to the rotation angle of the rotation angle sensor block 115b, the raw material 132 may be cut off from the starting end to a position corresponding to the rotation angle of the rotation angle sensor block 115b. It is conceivable that the amount of the raw material 132 to be discarded increases, which is uneconomical.

The present invention solves the problem of the above-mentioned conventional material automatic splicing device, and when setting the second material roll, the angle position of the starting end corresponds to the rotation angle of the rotation angle sensor block. It is an object of the present invention to provide an automatic splicing apparatus and an automatic splicing method of a raw material that need not be performed.

[0029]

For this purpose, in the automatic web splicing apparatus of the present invention, a first roll support shaft on which a first roll is set and a second roll support shaft on which a second roll is set. A roll support shaft, a rotating arm to which the first and second roll support shafts are mounted, and setting a roll on the second roll support shaft, and confirming that the mounting operation of the starting end of the material roll has been completed. Input means for inputting, rotation angle detecting means for detecting a rotation angle of the second roll support shaft with respect to the rotary arm, and a raw material of the second roll near the end of the raw material of the first roll. The raw material of the first roll is consumed on the basis of the additional connecting means for adding and connecting the start end and the input rotation angle of the second roll and the detected rotation angle of the second roll support shaft. Just before being exhausted, the second Rotate the Lumpur support shaft, the raw starting end of the second roll fit at a position opposed to the replenishing connecting means, then, and a control device for operating the replenishing connection means.

In the automatic splicing method of the present invention,
The web is unwound from the first roll, and the second roll is
After setting the starting end of the material roll of the second roll with respect to the rotating arm at a predetermined position and performing the gluing operation, inputting the completion of the work and inputting the second And detecting the rotation angle of the second roll supporting shaft, and consuming the raw material of the first roll based on the rotation angle of the starting end of the raw material of the second roll and the rotation angle of the second roll supporting shaft. Immediately before being exhausted, the second roll supporting shaft is rotated to add the starting end of the raw material of the second roll to a position facing the connecting means, and thereafter, in the vicinity of the end of the raw material of the first roll. Then, the starting end of the material roll of the second roll is added and connected.

[0031]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a plan view of an automatic web splicing apparatus according to a first embodiment of the present invention, and FIG. 4 is a side view of the automatic web splicing apparatus according to the first embodiment of the present invention. 5 is a perspective view of a principal part of the rotation angle sensor and the rotation angle sensor block according to the first embodiment of the present invention, and FIG. 6 is a view taken along the line AA in FIG.

The automatic web splicing apparatus 40 according to the present embodiment has a turret arm support frame 41 and a roller support frame 42, and processes a band-shaped sheet material, that is, the web 32, into containers, bags, In the manufacturing process for manufacturing the lid and the like, the raw material 32 is supplied to the processing device.

The raw material 32 is made of resin, paper, cloth,
Use of materials composed of metals, ceramics, etc., mixtures of all or some of these materials, composites of all or some of these materials, or laminates of all or some of these materials Is done.

Then, the raw fabric 32 has a core 30a in advance.
The raw material rolls 31a and 31b are rotatably set, and the raw material 32 is automatically fed out from the rotating raw material roll 31a. Forming machines for processing, machines with affixing machines,
It is fed into a processing device (not shown) such as a welding machine, a rolling machine, or a laminating machine, and is processed into containers, tubes, bags, lids, corrugated sheets, adhesive tapes, laminated films, and the like.

A turret arm 11 as a rotating arm is rotatably mounted on the turret arm support frame 41 around the center of the turret arm 11, and two turret arms 11 are coaxial with the center of the turret arm 11. An arm supporting the auxiliary roller 47 is rotatably mounted.

As shown in FIG. 1, both ends of the turret arm 11 are provided with a set roll, ie, a first material roll 31a as a first roll.
The first and second roll supporting shafts 12a and 12b that support the roll set next, that is, the second material roll 31b as the second roll, are rotatably mounted. Then, support shaft sleeves 13a, 13b are provided so as to surround the roll support shafts 12a, 12b, respectively.

Further, the support shaft sleeves 13a, 13b
Around the sensor block support sleeves 14a, 14b
Are disposed so as to be relatively movable in the axial direction, that is, slidably. The support shaft sleeves 13a, 13
b and sensor block support sleeves 14a, 14a, 1b
A key groove (not shown) is formed on the inner peripheral surface of 4b, and keys 16a and 16b are inserted into the key grooves. The support shaft sleeves 13a and 13b and the sensor block support sleeves 14a and 14b Although it is slidable in the axial direction by 16b, it is connected so as to rotate integrally. The support shaft sleeve 13
a, 13b and the sensor block support sleeves 14a,
Instead of the keys 16a and 16b, for example, a spline that is slidable in the axial direction can be used as means for connecting the 4b.

Further, the sensor block support sleeve 14
a, 14b are bearings 20a, 20b, 21a, 2
The turret arms 11 are rotatably attached to the turret arms 11 via 1b so as to be immovable in the axial direction.

The rotation angle sensor block 15 is provided on the outer peripheral surfaces of the sensor block support sleeves 14a and 14b.
a and 15b are fixed respectively. In addition, the rotation angle sensor units 67a and 67b detect that the rotation angle sensor blocks 15a and 15b are close to each other,
It detects that the rotation angles of the roll support shafts 12a and 12b have reached a predetermined angle. The rotation angle sensor block 15a,
15b and the rotation angle sensor units 67a, 67b function as rotation angle detection means for detecting the rotation angles of the first and second roll support shafts 12a, 12b.

Here, the rotation angle sensor block 15
a and 15b are made of a magnetic material, a metal, a dielectric, or the like, while the rotation angle sensor units 67a and 67b are non-magnetic sensors that detect a change in magnetism, a change in capacitance, reflected laser light, reflected ultrasonic waves, or the like. It is a contact type sensor.

As shown in FIG. 5, the rotation angle sensor blocks 15a and 15b are provided with first blocks 15a-1 and 15b-1, which are mounted in the sensor block support sleeves 14a and 14b in the axial direction. And second blocks 15a-2 and 15b-2. Further, FIG.
As shown in FIG. 2, the first blocks 15a-1, 15a-1
5b-1 is the sensor block support sleeve 14a,
It is mounted over a range of 180 degrees on the outer circumference of 14b. Further, the second blocks 15a-2 and 15b-2
Are mounted over the range of 180 degrees on the outer circumference of the sensor block support sleeves 14a and 14b and shifted by 90 degrees with respect to the first blocks 15a-1 and 15b-1.

The rotation angle sensor unit 67
a, 67b are the first blocks 15a-1, 15b
-1 and a first rotation angle sensor 67 disposed at a position corresponding to each of the second blocks 15a-2 and 15b-2.
a-1, 67b-1 and a second rotation angle sensor 67a-
2, 67b-2. The first rotation angle sensors 67a-1 and 67b-1 and the second rotation angle sensor 67
a-2, 67b-2, first and second roll support shafts 1
The positions of the rotation angles 2a and 12b are equal to each other.

The first rotation angle sensor 67a-
1, 67b-1 and second rotation angle sensors 67a-2, 67
7b-2 is preferably mounted on a long axis passing through the center of rotation of the turret arm 11 and outside the first and second roll support shafts 12a and 12b with respect to the center of rotation.

Accordingly, the rotation angles of the first and second roll support shafts 12a and 12b and the first rotation angle sensor 67
a-1, 67b-1 and the second rotation angle sensor 67a-
2 and 67b-2, assuming that the rotation state shown in FIG. 5 is a reference state (rotation angle 0 degree), Table 1
become that way.

[0046]

[Table 1]

Thus, the first rotation angle sensors 67a-1 and 67b-1 and the second rotation angle sensor 67a
From the signals transmitted by the turret arms 1 of the first and second roll support shafts 12a and 12b.
The rotation angle with respect to 1 can be detected. When the rotation position of the turret arm 11 shown in FIG.
The position of the application of the adhesive at the beginning of the raw roll or the application of the adhesive tape is determined with respect to the position. This position is set as the standard material roll start end setting position.
And the second roll support shafts 12a and 12b are located at substantially the same height. In short, a position where a person can easily work is set as the standard raw roll start position. Therefore, the standard roll start position is always determined for the turret arm 11. The rotation angles of the first and second roll support shafts 12a and 12b with respect to the turret arm 11 can be detected from the signal.

Adjustable outer cylinders 17a and 17b are fixed to both ends of the turret arm 11 on the same axis as the roll support shafts 12a and 12b, respectively. The adjusting outer cylinders 18a, 17a and 17b each have a female screw formed on the inner peripheral surface thereof and a male screw formed on the outer peripheral surface thereof.
18b is screwed.

The support shaft sleeves 13a, 13b
One end (the left end in FIG. 1) is a bearing 22a, 2
It is rotatably attached to the adjustment inner cylinders 18a and 18b via 2b so as to be immovable in the axial direction. Since the adjusting inner cylinders 18a and 18b are rotated using a power source such as a motor (not shown), the first and second roll supporting shafts 12a and 12b and the supporting shaft sleeves 13a and 13b are rotated.
b, adjusting outer cylinders 17a, 17b, and adjusting inner cylinders 18a, 1
8b cooperate with the first and second raw material rolls 31a, 31
It functions as a position adjusting means for adjusting the position of b in the axial direction.

The first and second roll support shafts 12a, 12
1 (right end in FIG. 1) is connected to one end (FIG. 1) of the cores 30a, 30b of the first and second raw rolls 31a, 31b.
At the left end). Roll presses 23a and 23b are fitted into the other ends (right ends in FIG. 1) of the cores 30a and 30b, respectively. The roll pressers 23a, 23b function as first setting means and second setting means in cooperation with the first and second roll support shafts 12a, 12b, and the cores 30a, 30b are respectively sandwiched and fixed. You.

A lower pester arm 45 and an upper pester arm 49 serving as a connecting means are added to the roller support frame 42 so as to be swingable.
A lower pester roller 46 and an upper pester roller 50 are rotatably attached to the fifth and upper pester arms 49, respectively. A tension arm 43 is swingably mounted on the roller support frame 42, and a tension roller 44 is rotatably mounted on the tension arm 43. Further, the roller support frame 42 includes:
A plurality of transport rollers 48 for transporting the web 32 unwound from the first web roll 31a are rotatably mounted. Here, at least one of the transport rollers 48 is rotated by a power source such as a motor (not shown),
It is desirable to transport the web 32.

The automatic splicing device 40 has a control device 60. The control unit 60 includes a CPU (central operator) 61, a memory 62, an input unit 63 including a keyboard, a joystick, and the like, which also functions as an input unit for inputting that the mounting operation of the starting end of the material roll has been completed, a display device. 64, and I / O (input / output interface) 6
And a rotation angle sensor 67 via the I / O 65.
a and 67b are connected to the control device 60 so as to be able to transmit and receive control signals. The control device 60 controls the rotation of the adjustment inner cylinders 18a and 18b, detects the angular position θ of the rotation angle sensor blocks 15a and 15b, rotates the turret arm 11, swings the lower pester arm 45, and the like. The operation of the automatic splicing device 40 is generally controlled. Note that the control device 60 is not independent, and may be integrated with another control device as a part of a control device such as a processing device into which the raw fabric 32 is fed.

Next, the operation of the automatic web splicing apparatus having the above configuration will be described.

FIG. 7 is a first diagram showing the operation of the automatic web splicing apparatus according to the first embodiment of the present invention, and FIG. 8 is an automatic web splicing apparatus according to the first embodiment of the present invention. FIG. 9 is a third diagram showing the operation of the automatic splicing apparatus of a raw material according to the first embodiment of the present invention, and FIG.
0 is a fourth diagram showing the operation of the automatic web splicing apparatus according to the first embodiment of the present invention, and FIG. 11 shows the operation of the automatic web splicing apparatus according to the first embodiment of the present invention. Fifth
And FIG. 12 is a sixth diagram showing the operation of the automatic splicing apparatus for a web in the first embodiment of the present invention.

First, the first material roll 31a is set at one end of the roll support shaft 12a. In this case, the first material roll 31a is transported from right to left in FIG. 1 until one end of the roll support shaft 12a fits into one end of the core 30a. Thereafter, the roll retainer 23a is attached, and the core 30a is attached to the roll support shaft 12a and the roll retainer 2a.
3a so as to be clamped from both sides.

Next, from the first material roll 31a to the material 3
2 is fed out, passes through each transport roller 48 and the tension roller 44, and is fed into a processing device (not shown). Then, in order to keep the supply of the raw fabric 32 uninterrupted,
Before the material 32 of the material roll 31a is consumed, the second material roll 31b is attached to one end of the roll support shaft 12b in a manner similar to that of the first material roll 31a with a margin in time. Set.

At this time, as shown in FIG.
Is unreeled from the lower side of the first material roll 31a.
That is, the second raw material roll 31b is set to be in the lowering state, and is in the lowering state.
The raw material roll 31b is cut such that the starting end thereof is at the standard raw roll starting end set position, and an adhesive is applied or an adhesive tape is applied.

Then, the completion of the operation of the starting end of the second material roll 31b is input via the input means 63 and the like. At this time, based on signals transmitted by the first rotation angle sensor 67b-1 and the second rotation angle sensor 67b-2,
Since the rotation angle of the second roll support shaft 12b with respect to the turret arm 11 has already been detected, the starting position of the raw material 32 of the second material roll 31b exists at any position of the second roll support shaft 12b. Is calculated. Thus, the rotation angle of the starting end of the web 32 of the web roll 31b can be detected from the signals transmitted by the first rotation angle sensor 67b-1 and the second rotation angle sensor 67b-2.

In addition, since the upper pester arm 49 and the upper pester roller 50 are not used when adding and connecting the raw fabric 32 in the lowering state, the upper pester arm 49 and the upper pester roller 5 are used in FIGS.
0 is omitted. In addition, the first and second material rolls 31
When both a and 31b are set to be in the state of being pulled upward, the lower pester arm 45 and the lower pester roller 46 are not used when the original fabric 32 is added and connected. Further, when the position where the raw material 32 is fed out is different between the first material roll 31a and the second material roll 31b, that is, when the upper pulling and the lowering are switched, the lower pester arm 45 is used. And the upper Pester arm 49, the lower Pester roller 46 and the upper Pester roller 50 are used.

Next, as shown in FIG. 8, the turret arm 11 is rotated counterclockwise in the figure by a power source (not shown). In this case, since the first material roll 31a moves to the right in the drawing, the tension applied to the supplied material 32 fluctuates, but the fluctuation of the tension is absorbed by the swing of the tension arm 43. You. When the turret arm 11 is rotated to the standby position shown in FIG. 9, the turret arm 11 is stopped. In addition,
At this time, the web 32 of the first web roll 31a is passed through the auxiliary roller 47.

Here, the material 3 of the first material roll 31a
If the end of the web 2 is displaced from the starting end of the web 32 of the second web roll 31b in the axial direction, a step occurs at the side edge of the connection portion of the web 32. To prevent this, the adjustment inner cylinder 18a or the adjustment inner cylinder 18b is rotated to move the first roll support shaft 12a or the second roll support shaft 12b in the axial direction, and the first material roll 31a is rotated. Of the material 32 and the material 32 of the second material roll 31b.
Is adjusted so that the position in the axial direction matches the start end of. In this case, it is necessary to keep the moving speed in the axial direction of the first raw material roll 31a from which the raw material 32 is unreeled, so that the adjustment inner cylinder 18a is rotated at a low speed.

Next, as shown in FIG. 10, the lower pester arm 45 is swung by a power source (not shown), the lower pester roller 46 is raised, and is placed near the reconnecting connection position.

Here, the first rotation angle sensor 67b-
From the signals transmitted by the first and second rotation angle sensors 67b-2, the starting end of the web 32 of the second web roll 31b is detected,
The second roll support shaft 12b is rotated so that the start end is located at a position facing the lower pester roller 46. Note that an adhesive is applied or an adhesive tape is attached to a start end of the raw material 32 of the second material roll 31b.

Next, as shown in FIG. 11, the lower pester roller 46 is further raised and placed at the splicing connection position, and the material 32 fed out of the first material roll 31a is moved to the second material. Of the material roll 32 of the second material roll 31b, and the starting end of the material 32 of the second material roll 31b is fixed to the material 32 of the first material roll 31a by the adhesive or the adhesive tape. Connected.
At this time, at the same time, the cutter 51 attached to the lower pester arm 45 operates, and the first raw roll 3
The rear end of the web 32 of 1a is cut. As a result, the raw fabric 3
2 is completed.

Then, the web 32 fed from the second web roll 31b is continuously fed into the processing device following the web 32 fed from the first web roll 31a.

Next, as shown in FIG. 12, the lower pester arm 45 is swung, and the lower pester roller 46 is returned to the original position. On the other hand, the web 32 remaining on the first web roll 31a is wound up by a winding tube (not shown) and then discarded or recycled.

By repeating the above operation, new raw rolls are sequentially set, the raw rolls 32 are added and connected, and the raw rolls 32 are continuously fed to the processing apparatus.

As described above, in the present embodiment, regardless of the rotation angle of the starting end of the web 32 when the second web roll 31b is set to one end of the second roll support shaft 12b, the starting end is set to The second roll support shaft 12 is detected so that the start end is located at a position facing the lower pester roller 46.
When the second material roll 31b is set, the second material roll 31b is rotated so that the starting end corresponds to the rotation angle of the rotation angle sensor block 15b. The sensor block 15b may be attached to the turret arm 11 so as to be adjustable in angular position.
It is not necessary to cut off the raw material 32 up to the position corresponding to the rotation angle of 5b.

Therefore, there is no heavy labor for rotating the second material roll 31b, and the rotation angle sensor block 15
There is no safety problem due to the mounting structure of b, and the amount of discarded raw material 32 does not increase, so it is not uneconomical.

Next, a second embodiment of the present invention will be described. The description of the same components and operations as those of the first embodiment will be omitted.

FIG. 13 is a perspective view of a main part of a rotation angle sensor and a rotation angle sensor block according to a second embodiment of the present invention, and FIG. 14 is a view taken along the line BB in FIG.

As shown in FIG. 13, the rotation angle sensor blocks 15a and 15b according to the present embodiment are composed of first blocks 51a-1 which are attached in the axial direction of the sensor block support sleeves 14a and 14b. , 5
1b-1, second blocks 51a-2 and 51b-2, third blocks 51a-3 and 51b-3, and fourth blocks 51a-4 and 51b-4.

Further, as shown in FIG. 14, the first blocks 51a-1 and 51b-1 are attached over a range of 180 degrees around the sensor block support sleeves 14a and 14b. Further, the second block 51a-2, 51b-2, the third block 51a-
3, 51b-3 and fourth blocks 51a-4, 5
1b-4 is also the sensor block support sleeve 14a,
The outer periphery of 14b is attached to the first blocks 51a-1 and 51b-1 sequentially over the range of 180 degrees and shifted by 45 degrees.

The rotation angle sensor unit 67
a, 67b are the first blocks 51a-1, 51b.
-1, the first blocks provided at positions corresponding to the second blocks 51a-2 and 51b-2, the third blocks 51a-3 and 51b-3, and the fourth blocks 51a-4 and 51b-4. , Rotation angle sensors 68a-1, 68b-1, second rotation angle sensors 68a-2, 68b-2, third rotation angle sensors 68a-3, 68b-3, and fourth rotation angle sensor 68.
a-4, 68b-4. The first rotation angle sensors 68a-1 and 68b-1 and the second rotation angle sensor 6
8a-2, 68b-2, third rotation angle sensor 68a-
3, 68b-3, and a fourth rotation angle sensor 68a-4,
68b-4 are equal to each other with respect to the rotation angles of the roll support shafts 12a and 12b.

Accordingly, the rotation angles of the first and second roll support shafts 12a and 12b and the first rotation angle sensor 68
a-1, 68b-1, a second rotation angle sensor 68a-2,
68b-2, third rotation angle sensors 68a-3, 68b-
The relationship between the third and fourth rotation angle sensors 68a-4 and 68b-4 and the signals transmitted is as shown in Table 2 when the rotation state shown in FIG. 13 is a reference state (rotation angle 0 degree). .

[0076]

[Table 2]

In this manner, the first rotation angle sensors 68a-1 and 68b-1 and the second rotation angle sensor 68a-
2, 68b-2, third rotation angle sensors 68a-3, 68
b-3, and fourth rotation angle sensors 68a-4, 68b-
4 transmits the first and second roll supporting shafts 1
2a, 12b are the rotation angle sensor units 67a, 67
The rotation angle with respect to b can be detected. Since the positions at which the rotation angle sensor units 67a and 67b are attached to the turret arm 11 are fixed and known, the first and second roll support shafts 1 are obtained from the signal.
The rotation angle of the turret arm 11 with respect to the turret arm 11 can be detected.

As described above, in the present embodiment, the rotation angle sensor blocks 15a and 15b are attached to the first blocks 51a-1 and 51b-1 in which the sensor block support sleeves 14a and 14b are mounted at a distance in the axial direction. , The second blocks 51a-2 and 51b-2, and the third block 51
a-3, 51b-3, and a fourth block 51a-4,
51b-4, the rotation angle sensor units 67a, 67
7b are the first rotation angle sensors 68a-1, 68b-1,
Since it is composed of the second rotation angle sensors 68a-2, 68b-2, the third rotation angle sensors 68a-3, 68b-3, and the fourth rotation angle sensors 68a-4, 68b-4, the first and second rotation angle sensors 68a-4, 68b-4 are provided. The rotation angles of the second roll support shafts 12a and 12b with respect to the turret arm 11 can be detected with higher accuracy than in the first embodiment, that is, at 45-degree intervals.

Therefore, since the rotation angle of the starting end of the web 32 of the second web roll 31b can be detected with higher accuracy, the position of the starting end can be more strictly controlled, and the web 32 can be more precisely controlled. Can be more reliably and better implemented.

The first and second roll support shafts 12
Instead of a combination of the rotation angle sensor blocks 15a and 15b and the rotation angle sensor units 67a and 67b, which are proximity sensors, as a device for detecting the rotation angles of a and 12b,
A rotary encoder can also be used.

In this case, the rotation angle sensor block 15
Instead of a and 15b, a disk having a plurality of slits formed in the circumferential portion in the radial direction or a disk having a scale on the circumferential surface is attached to the first and second roll support shafts 12a and 12b. Preferably, the rotation angle sensor units 67a and 67b are optical sensors or magnetic sensors that read the slit or the scale by detecting reflected light, transmitted light, or the like, instead of the proximity sensor. Alternatively, an optical sensor of a type that detects a rotation angle by directly reading scales provided on the circumferential surfaces of the first and second roll support shafts 12a and 12b may be used.

Further, the rotation angle sensor block 15
a, 15b and rotation angle sensor units 67a, 67b,
Alternatively, the mounting position of the rotary encoder may not be inside the turret arm 11, but in this case, it is desirable to provide a cover from the viewpoint of safety.

The present invention is not limited to the above-described embodiment, but can be variously modified based on the gist of the present invention, and they are not excluded from the scope of the present invention.

[0084]

As described above in detail, according to the present invention, in the automatic web splicing apparatus, the first roll supporting shaft on which the first roll is set and the second roll are set. A second roll supporting shaft, a rotating arm to which the first and second roll supporting shafts are attached,
Input means for inputting that the work of mounting the starting end of the material roll has been completed, and rotation angle detection means for detecting the rotation angle of the second roll support shaft with respect to the rotation arm Near the end of the source roll of the first roll, replenishing connection means for replenishing and connecting the start end of the source roll of the second roll, and the input rotation angle of the second roll and the detected On the basis of the rotation angle of the second roll supporting shaft, just before the raw material of the first roll is consumed, the second roll supporting shaft is rotated to set the starting end of the raw material of the second roll. A control device that adjusts the position to face the additional connection means, and then activates the additional connection means.

In the method of automatically splicing a web, the web is fed from the first roll, and when the second roll is set on the second roll support shaft, the web of the second roll with respect to the rotating arm is used. After setting the starting end of the counter to a predetermined position and performing the gluing operation, inputting the completion of the operation and detecting the rotation angle of the second roll support shaft with respect to the rotating arm, the original of the second roll is obtained. The second roll support shaft is rotated just before the raw material of the first roll is consumed, based on the rotation angle of the starting end of the counter and the rotation angle of the second roll support shaft, Then, the starting end of the material roll of the first roll is added to the position facing the connecting means, and then the starting end of the material roll of the second roll is added and connected near the end of the material roll of the first roll.

In this case, the position of the start end relative to the second roll support shaft is detected irrespective of the rotation angle of the start end of the raw material when the second roll is set on the second roll support shaft, and the start end is detected. The second roll support shaft is rotated so that the second roll support shaft is positioned at a position facing the refill connection means.
When setting the second roll, it is necessary to rotate the second roll, to have a structure in which the rotation angle detecting means is attached to the outside so that the angular position can be adjusted, and to cut off the raw material from the starting end. There is no.

Accordingly, there is no heavy labor for rotating the second roll, no safety problem due to the mounting structure of the rotation angle detecting means, and the amount of raw material to be discarded does not increase, so that it is not uneconomical.

[Brief description of the drawings]

FIG. 1 is a plan view of an automatic splicing apparatus for a web according to a first embodiment of the present invention.

FIG. 2 is a plan view of a conventional automatic splicing device for a web.

FIG. 3 is a side view of a conventional automatic splicing device for a web.

FIG. 4 is a side view of the automatic splicing apparatus for a web according to the first embodiment of the present invention.

FIG. 5 is a perspective view of a main part of a rotation angle sensor and a rotation angle sensor block according to the first embodiment of the present invention.

FIG. 6 is a view taken in the direction of arrows AA in FIG. 5;

FIG. 7 is a first diagram illustrating an operation of the automatic splicing device for a web according to the first embodiment of the present invention.

FIG. 8 is a second diagram illustrating the operation of the automatic splicing apparatus for a web according to the first embodiment of the present invention.

FIG. 9 is a third diagram illustrating the operation of the automatic splicing device for a web according to the first embodiment of the present invention.

FIG. 10 is a fourth diagram showing the operation of the automatic splicing apparatus for a web according to the first embodiment of the present invention.

FIG. 11 is a fifth diagram showing the operation of the automatic splicing apparatus for a web according to the first embodiment of the present invention.

FIG. 12 is a sixth diagram illustrating the operation of the automatic splicing apparatus for a web according to the first embodiment of the present invention.

FIG. 13 is a perspective view of a main part of a rotation angle sensor and a rotation angle sensor block according to a second embodiment of the present invention.

14 is a view as viewed in the direction of arrows BB in FIG.

[Explanation of symbols]

 11 Turret Arm 12a, 12b Roll Support Shaft 31a, 31b Material Roll 32 Material 45 Lower Pester Arm 49 Upper Pester Arm 60 Controller 63 Input Means 67a, 67b Rotation Angle Sensor Unit

Claims (2)

[Claims] (A) A first roll on which a first roll is set
(B) a second roll support shaft on which a second roll is set; (c) a rotating arm to which the first and second roll support shafts are attached; An input means for setting that the roll is set on the roll support shaft of No. 2 and inputting that the work of mounting the starting end of the material roll has been completed;
(E) a rotation angle detecting means for detecting a rotation angle of the second roll support shaft with respect to the rotary arm; and (f) near the end of the raw material of the first roll, (G) a raw material of the first roll based on the input rotation angle of the second roll and the detected rotation angle of the second roll support shaft, A control device for rotating the second roll support shaft so that the starting end of the material roll of the second roll is positioned at a position facing the replenishing connection means, and immediately before the replenishment connection means is operated, just before the replenishment connection means is consumed. And an automatic splicing device for a web. 2. A starting end of a source roll of the second roll with respect to the rotating arm when (a) feeding the raw roll from the first roll and (b) setting the second roll on the second roll support shaft. Is set at a predetermined position, and after the gluing operation is performed, the completion of the operation is input, and the rotation angle of the second roll support shaft with respect to the rotating arm is detected. The second roll support shaft is rotated just before the raw material of the first roll is consumed, based on the rotation angle of the starting end of the anti-roll and the rotation angle of the second roll support shaft. And adding the starting end of the material roll of the second roll to the position facing the connecting means, and then adding and connecting the starting end of the material roll of the second roll near the end of the material roll of the first roll. Automatic splicing method of the web.