JP2775439B2 - Web feeder - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an apparatus for supplying a web (flexible strip) such as a thermal paper for color printing, a plastic film, a metal film and the like.

[Prior art] Conventionally, when a web wound on a web roll is drawn out and supplied, a web supply table provided with a web holder that supports the web roll of the web is provided.
The web is drawn out from the web roll of the web holder set at the web drawing position.

Further, in the above-described conventional web supply device, an edge detector detects an edge position of a web to be unwound in order to stabilize a position in a width direction of the unwound web and prevent meandering or waving of the web. In some cases, an edge adjustment driving unit is driven based on the detection result of the edge detector, thereby adjusting the edge position of the web.

[Problems to be Solved by the Invention] However, in the conventional web supply apparatus, since the web supply table is provided with only one web holder, each time the type of web to be supplied changes, a different web material is used. The productivity is low, for example, the web holder supporting the roll must be attached to and detached from the web table.

Further, the web supply device includes a plurality of drive units and a power transmission path thereof, such as a drive unit for web feeding, a drive unit for edge position adjustment of the web web, and the like. Is desired to be simplified.

The present invention makes it possible to efficiently handle a plurality of web rolls and supply those webs with high productivity.
It is an object to simplify the drive system for web supply as much as possible.

Means for Solving the Problems The present invention comprises a web supply table provided with a web holder for supporting a web roll of a web, and the web can be fed from the web roll of the web holder set at the web feeding position. A web feeder comprising: an edge detector for detecting an edge position of a web to be extracted; and an edge adjustment drive unit for adjusting an edge position of the web to be extracted based on a detection result of the edge detector. In the web supply table, a plurality of web holders are arranged side by side in the width direction of the material roll supported by them, and a table driving unit that moves the table so that each web holder is selectively set at the web extraction position. The table drive unit also constitutes the edge adjustment drive unit. The driving unit is
The table can be moved so that each web holder can be selectively set to the web extension position, and the table can be moved to adjust the edge position of the extracted web based on the detection result of the edge detector. It is what it was.

[Operation] According to the present invention, the web supply table includes a plurality of web holders, and each of the web holders can be selectively set at the web extraction position. Accordingly, by supporting the web roll on each of the web holders, the web roll of the currently fed web can be immediately set to the web feeding position, and the web can be immediately fed.
Therefore, a plurality of material rolls can be handled efficiently and their webs can be supplied with high productivity.

In addition, since the web holders are arranged in parallel in the width direction of the material rolls supported by the web holders, the moving direction (the width direction of the material roll) for the table driving unit to set each material roll to the web extraction position. In this case, the moving direction (the width direction of the raw roll) used by the edge adjustment drive unit to adjust the edge position of the currently fed web coincides. Therefore, the table driving unit also constitutes an edge adjustment driving unit, and both of the above-mentioned moving operations can be performed by driving control of the web supply table by the driving unit. That is, the drive unit and the power transmission path for the above two moving operations can be unified. Therefore,
The drive system for web supply can be simplified as much as possible.

FIG. 1 is a front view showing a web take-up device, and FIG.
FIG. 3 is a schematic view showing a web driving mechanism, FIG. 4 (A) and (B) are schematic views showing a web cutting device, and FIG. 5 is a defective web cutting and discharging device. FIG. 6 is a schematic view showing an edge detector, and FIG.
(A) and (B) are schematic views showing a web connection device, and FIG.
(A) and (B) are schematic views showing a transfer device, FIG. 9 is a perspective view showing a transfer device, and FIG. 10 is a schematic diagram showing a web pressing device and a cutting device.

As shown in FIGS. 1 and 2, the web take-up device 10 includes a web supply unit 11, a web take-up unit 12, and a web feed unit 13.
And a bobbin supply / discharge unit 14.

The web supply unit 11 includes a web holder 16 that supports the web roll 15 of the web W, and enables the web to be fed from the web roll 15 of the web holder 16 set at the web feeding position. The web take-up unit 12 includes a web take-up shaft 18 to which the take-up bobbin 17 can be attached and detached, and the web can be taken up by the take-up bobbin 17. The web feed unit 13 is a dancer roll
19, the web is fed from the web supply unit 11 to the web take-up unit 12
To guide. The bobbin supply / discharge unit 14 includes a primary winding bobbin 17A that winds the web this time, and a secondary winding bobbin 17B that is joined to a winding end of the web wound on the primary winding bobbin 17A.
And a product discharging section 21 for discharging the primary winding bobbin 17A and the secondary winding bobbin 17B after web winding.

Hereinafter, the web supply unit 11 and the web winding unit 12 will be described in detail.

(A) In the web supply unit 11, as shown in FIGS. 1 and 2, a guide rod 23 provided on a gantry 22 is provided with a web supply table 24. The web supply table 24 has 3
The web holders 16A to 16C are arranged side by side in the width direction of the material rolls 15A to 15C that they support. Here, the web holders 16A to 16C are set at the same level. In this embodiment, the material roll 15A is the leader tape W1, the material roll 15B is the ribbon tape W2, and the material roll 1
5C is composed of each web of the end tape W3.

The web supply unit 11 includes a position adjusting motor 25 such as a servomotor, and a feed screw 26 connected to the motor 25.
Are screwed into the web supply table 24. Dogs 100A to 100C corresponding to the respective web holders 16A to 16C are provided at three positions of the web supply table 24.
A sensor 101 that is turned on by 0A to 100C is provided, and the sensor 101 can detect that each of the web holders 16A to 16C is set at the web extending position. The control device 27 controls the rotation amount of the motor 25, obtains the output of the sensor 101, and moves the web supply table 24 so as to selectively set any one of the web holders 16A to 16C to the web extraction position. .

In the web supply unit 11, as shown in FIG. 3, each web roll 15A in each web holder 16A to 16C.
A position adjusting motor 29 such as a servomotor for driving the drawing shafts 28A to 28C to which the positions .about.15C are attached is provided. Clutches 31A to 31C are interposed in a power transmission path between a driving shaft 30 connected to the motor 29 and each of the drawing shafts 28A to 28C,
The control device 27 controls the web holder 16 set at the
Only the clutches 31 (31A to 31C) are connected. Further, the control device 27 controls the amount of rotation of the motor 29 so that a predetermined amount of web can be extracted from the web holder 16. In FIG. 3, reference numeral 32 denotes a driven shaft.

Further, the web supply unit 11 is provided with an edge detector 33 for detecting the edge position of the web to be drawn, on the side of the web drawing line. The edge detector 33 is
As shown in FIG. 6, the vertical cylinder 34 moves up and down along the vertical guide 35, and can be moved forward and backward in the width direction of the web along the forward and backward traveling guide 37 by the forward and backward traveling cylinder 36. When the web holder 16 moves in and out of the protruding position, the edge detector 33 can be retracted to a position where it does not interfere with each web, and the edge detector 33 can be set to an optimal work position for detecting the edge of each web. I have to. Further, in the web supply unit 11, an edge detector
The detection result of 33 is transferred to the control device 27, and the control device 27 controls the motor 25 for driving the table, and adjusts the edge position of the resulting web to an appropriate position. In other words, in the web supply unit 11, a single motor 25 shares a drive unit for moving the web supply table 24 and a drive unit for adjusting the edge of the web.

In the web supply unit 11, the primary winding bobbin 17
The end tape W3 is wound around A as the beginning of winding, the ribbon tape W2 is connected to the end of the end tape W3 using the connection tape 38, and the ribbon is continuously wound, and the connection tape 38 is wound on the end of the ribbon tape W2. Is used to connect the leader tape W1 and to continuously wind the leader tape W1. For this purpose, a web connecting device 38A as described below is provided. As shown in FIG. 7 (A), the web connection device 38A
The suction holding units 39A to 39C provided in 6A to 16C, the suction holding unit 41 of the tape sticking table 40 installed on the drawing line so as to face the web supply table 24, and the suction of the tape sticking table 40. The holding unit 41 and the suction holding unit 39A (39) of the web holder 16A (16B or 16C) set at the protruding position.
B or 39C), a cutting device 42 provided in a boundary region sandwiched between the cutting device 42, a superposition mechanism 43 disposed on the tape attaching table 40 and driving the suction holding portion 41, and a cutting device 42 It is configured as follows, with the tape sticking device 44 installed.

That is, the suction holding section 41 of the tape attaching table 40 constitutes a preceding web suction holding section, and sucks and holds the preceding web.
Also, the suction holding portions 39A to 39C of the web holders 16A to 16C are provided.
Constitutes a succeeding web suction holding unit, and sucks and holds the succeeding web. The cutting device 42 constitutes a preceding web cutting device and a succeeding web cutting device, and cuts an end of the preceding web protruding from the suction holding portion 41 functioning as a preceding web suction holding portion, and also functions as a subsequent web suction holding portion. The end of the subsequent web protruding from the suction holding units 39A to 39C is cut. The web rolls 15A to 15C are located at both ends of the web feed-out position.
Cutting is performed by the cutting devices 45 and 46 facing the suction holding sections 39A to 39C of 6C, and the distal end surface is adjusted. Cutting equipment 42, 45
Is constructed as shown in FIGS. 4A and 4B, and the web is cut by a cutter blade 49 provided on a slider 48 running along a guide shaft 47 by a driving device (not shown). The cutting device 46 is also configured as shown in FIG. 5, and cuts the web by a cutter blade 52 provided on a slider 51 traveling along the guide shaft 50 by a driving device (not shown). The cutting device 46 can discharge the web by sandwiching the web between an upper roller 54 driven by a motor 53 and a lower roller 55 pressed against the roller.

Further, the superposition mechanism 43 is provided on the tape affixing table 40 and is a forward / backward moving cylinder 57 for moving the forward / backward moving table 56 forward and backward.
And an up / down cylinder 59 provided on the forward / backward moving table 56 to move the up / down table 58 up and down, and the suction holding section 41 of the tape attaching table 40 provided on the up / down table 58 to swing around the support shaft 60. The swing cylinder 61 is configured. Each web holder 16
For A to 16C, a vertical cylinder 62 for raising and lowering the suction holding units 39A to 39C is provided. Thereby, the superposing mechanism unit 43 is configured such that the suction holding units 39A to 39C and the suction holding unit 41 are set to the same height level in the web drawing line by the vertical cylinder 59 and the vertical cylinder 62, and 7
As shown in FIG. 7B, first, the suction holding section 41 is rocked by the swing cylinder 61, and then the suction holding section 41 is moved to the suction holding sections 39A to 39C by the forward / backward moving cylinder 57. By returning the suction holding unit 41 to the original position by the swing cylinder 61, the end of the preceding web (for example, the end tape W3) protruding from the suction holding unit 41 and the subsequent web (for example, the ribbon tape) protruding from the suction holding units 39A to 39C. Lay on top of W2).

Next, the tape affixing device 44 sucks and holds the connection tape 38 unwound from the raw tape roll 63.
64 and a tape sticking cylinder that moves the tape chuck 64 up and down
The connecting tape 38 is carried on the tape chuck 64, and the connecting tape 38 is attached from above the overlapping portion of the preceding web and the succeeding web. The connection tape 38 carried by the tape chuck 64 is cut to a fixed length by the cutter blade 66, and the release paper unwound from the raw tape roll 63 is wound on a release paper take-up roll 67.

(B) In the web take-up section 12, a pulse counter 69 is connected to a motor 68 for driving the web take-up shaft 18, and this count value is transferred to the control device 27, whereby the current take-up web is wound. The quantity can be counted. The operation of the control device 27 causes the web take-up device 10 to operate the web take-up shaft 18.
The end tape W described above is attached to the primary winding bobbin 17A attached to
3. The ribbon tape W2 and the leader tape W1 can be sequentially wound by a predetermined amount.

At this time, the web supply unit 11 continuously draws out the end tape W3, the ribbon tape W2, and the leader tape W1 via the connection tape 38. In the web winding unit 12, the web W1 to W3 After winding on the next take-up bobbin 17A, the secondary take-up bobbin 17B is joined to the end of the leader tape W1 and the start end of the end tape W3 newly connected to the leader tape W1 via the connection tape 38. The leader tape
Separating from W1 and winding on another new primary winding bobbin 17A are repeated.

The web take-up unit 12 performs the web take-up operation, which is repeated as described above, using a control device 27 (a take-up control unit), a transfer device 70, a web pressing device (a web holding device) 71, a cutting device, and the like.
According to 72, execution is performed as follows.

That is, the controller 27 transfers the count value of the above-described pulse counter 69, temporarily stops the motor 68 of the web winding shaft 18 in the process of winding the predetermined amount of the end tape W3 on the primary winding bobbin 17A. Then, the front end of the ribbon tape W2 is connected to the rear end of the end tape W3 via the connection tape 38 by the above-described web connection device 38A, and after winding the end tape W3, the ribbon tape W2 is removed by a predetermined amount. In the process of winding on the next winding bobbin 17A, the motor 68 is temporarily stopped, and the front end of the leader tape W1 is connected to the rear end of the ribbon tape W2 via the connection tape 38 by the web connection device 38A.
After winding the ribbon tape W2, a predetermined amount of the leader tape W1 is wound around the primary winding bobbin 17A.
8 is temporarily stopped, the front end of the new end tape W3 is connected to the rear end of the leader tape W1 via the connection tape 38 by the web connection device 38A, and the above-described operation is performed under the completion of the winding of the leader tape W1. The connecting tape 38 between the leader tape W1 and the new end tape W3 used in step 2 is set to the cutting work position (position where the cutting device 72 is disposed).

The transfer device 70 is, as shown in FIGS. 8 and 9,
It has a new primary take-up bobbin suction chuck 73, a secondary take-up bobbin suction chuck 74, a connection tape suction portion 75, and a primary take-up bobbin locking chuck 76, and is provided with a feed screw 78 driven by a feed motor 77. It moves between the bobbin supply / discharge unit 14 and the web take-up unit 12 described above. The feed motor 77 is controlled by the control device 27.

The transfer device 70 vacuum-adsorbs each of the primary winding bobbin 17A and the secondary winding bobbin 17B supplied to the bobbin supply table 20 to the new primary winding bobbin suction chuck 73 and the secondary winding bobbin suction chuck 74. Adsorbed by action, while setting these winding bobbins 17A, 17B on both sides of the above-mentioned cutting work position in the web path line of the web winding section 12,
The connection tape sucking portion 75 capable of vacuum suctioning the connection tape 38 is set at the above-described cutting operation position, and the primary winding bobbin 17A in the completed winding state on the web winding shaft 18 is engaged with the primary winding bobbin locking chuck 76. Chuck with. The primary winding bobbin locking chuck 76 opens and closes a pair of claws 77A facing each other with a claw opening / closing cylinder 78A, and locks both ends of the primary winding bobbin 17A by receiving portions 79 of the claws 77A. 79A is a spring. Note that the transfer device 70 is
Are provided with a pair of web holding portions 80 on both sides of the web holding portion. 80A is a backup spring for the holding section 80. In addition, the suction chucks 73 and 74, the connection tape suction section 75, the locking chuck 7
6. A rubber plate 81 for preventing slippage is provided on the holding portion 80 for holding the bobbin, the connection tape 38 and the web, respectively, as shown in FIG.

As shown in FIG. 10, the web pressing device (web holding device) 71 is opposed to the suction chucks 73 and 74 of the transfer device 70 set on the web winding unit 12 with the web pass line interposed therebetween. Each pair includes a first pressing portion 82 and a second pressing portion 83. The first pressing portion 82 includes a cutting device 72
Before cutting the web as will be described later, it rises from the original position below the web path line, and the leader tape W1 and the end tape W3 on both sides of the connection tape 38 set at the cutting work position.
Are pressed and held on the primary winding bobbin 17A and the secondary winding bobbin 17B chucked by the suction chucks 73 and 74, respectively, and are prepared for the cutting operation of the cutting device 72. 2nd pressing part
83 holds the leader tape W1 and the end tape W3 on both sides of the connection tape 38 between the web holding unit 80 before the cutting operation of the cutting device 72 and prepares for the cutting operation of the cutting device 72. After the cutting device 72 has completed the cutting operation,
Ascending from the original position below the web path line, the web holding unit 80 is pushed up while holding the end of the leader tape W1 and the end of the end tape W3 by vacuum suction, and these webs W
1, W3 is pressed against the bobbin surfaces of the opposing bobbins 17B and 17A,
These ends are joined to a double-sided adhesive tape provided on the bobbin surface.

As shown in FIG. 10, the cutting device 72 includes the leader tapes W1 on both sides of the connection tape 38 set at the above-described cutting operation position.
And the end tape W3, each bobbin 17
Cut the part sandwiched between the parts to be joined to B and 17A. The cutter blades 84 of the cutting device 72 are provided on both sides of the slider 85. The slider 85 is slidably supported by a guide shaft 86 provided below the web path line and orthogonal to the path line, and is moved by a cylinder 87. . At this time, the cut connection tape 38 is suction-held by the connection tape suction portion 75.

After cutting the webs on both sides of the connection tape 38, the transfer device 70 moves laterally, and attaches the new primary winding bobbin 17A, which is chucked by the suction chuck 73, to the web winding shaft 18,
The primary winding bobbin 17A and the secondary winding bobbin 17B after the web is wound by the locking chuck 76 and the suction chuck 74.
(Product) is transferred to the product discharge section 21. Further, the cut connection tape 38 held by the connection tape suction unit 75 is transferred to the tape discharge unit 21A.

The web take-up device 10 includes a web defective portion processing device as described below. That is, the defective portion processing device includes the control device 27 as a drawing control unit, the cutting device 42 as a leading end cutting device for the defective portion, the cutting device 46 as a rear end cutting device for the defective portion, The web connection device 38A for connecting a non-defective web to the web from which the part has been removed, and a fault detector 88 for detecting a fault display of the web.

That is, the defect detector 88 is disposed on the side of the web drawing line, on the upstream side of the above-mentioned edge detector 33, and detects a defect display attached before and after the defective portion of each web, The detection result is transferred to the control device 27. The control device 27 stops web extraction on condition that the defect detector 88 detects a defect. The cutting device 42
The leading end of the defective portion of the web, which has been stopped, is cut by the above-described cutting operation in the drawing line. The cutting device 46 holds the rear end of the defective web in a state in which the web holders 16A to 16C of the defective web whose front end of the defective portion is cut face the cutting device 46 and are laterally moved outside the drawing line. Cutting is performed by the above-described cutting operation, and the defective portion is discharged by the above-described upper and lower rollers 54 and 55. The web connecting device 38A is provided with a cutting device 46A at the rear end of the preceding web that has been removed from the defective web and is stopped in the drawing line.
The leading ends of the non-defective webs of the web holders 16A to 16C, which have been returned to the drawing line again from the position opposing the above, are connected by the above-described connection operation using the connection tape 38.
After that, the control device 27 restarts the continuous drawing of the non-defective web.

Hereinafter, the primary winding bobbin by the web winding device 10 will be described.
A one-cycle winding operation in which each of the webs W1 to W3 is continuously wound on 17A and the secondary winding bobbin 17B is attached to the end of the leader tape W1 will be described.

Prior to winding, each web holder of the web supply unit 11
Material rolls 15A to 15C of the webs W1 to W3 are mounted on 16A to 16C. The bobbin supply table 20 of the bobbin supply / discharge unit 14
Are supplied with a primary winding bobbin 17A and a secondary winding bobbin 17B. In addition, the web holder 16 of the end tape W3 is inserted into the web feeding line of the web supply unit 11 by driving the motor 25.
C is set, and the primary winding bobbin 17A is mounted on the web winding shaft 18 of the web winding section 12, and the winding start end of the end tape W3 is joined to the primary winding bobbin 17A. At this time, the distal ends of the web holders 16A and 16B are held by the suction holding sections 39A and 39B, and are in a standby state.

Next, the motor 29 and the motor 68 of the web winding shaft 18 are driven to wind a predetermined amount of the end tape W3 on the primary winding bobbin 17A. In the process of winding the end tape W3, the motor 2
9 and 68 are temporarily stopped, and the cutting device 42 cuts the end tape W3. Then, by driving the motor 25, the ribbon tape W2
The web holder 16B is set to be moved laterally, and the front end of the ribbon tape W2 is overlapped and connected to the rear end of the end tape W3 via the connection tape 38 by the web connection device 38A.

By restarting the motors 29 and 68, the ribbon tape W2 is wound on the bobbin 17A following the end tape W3. In the process of winding the ribbon tape W2 by a predetermined amount, the motors 29 and 68 are temporarily stopped, and the ribbon tape W2 is cut by the cutting device. Then, the web supply unit 11 is driven by the drive of the motor 25.
The web holder 16A of the leader tape W1 is set to be moved laterally to the web drawing line, and the leading end of the leader tape W1 is overlapped and connected to the rear end of the ribbon tape W2 via the connection tape 38 by the web connection device 38A. You.

By restarting the motors 29 and 68, the leader tape W1 is wound on the bobbin 17A following the ribbon tape W2. Even in the process of winding the leader tape W1 by a predetermined amount, the motor 29,
68 is suspended and the leader device W1
Is disconnected. Then, by driving the motor 25, the web holder 16C of the end tape W3 is set to be moved laterally in the web drawing line of the web supply unit 11, and
By 8A, the front end of a new end tape W3 is overlapped and connected to the rear end of the leader tape W1 via the connection tape 38.

When the winding on the primary winding bobbin 17A is completed, the connection tape 38 between the leader tape W1 used above and the new end tape W3 is set to a cutting work position (position where the cutting device 72 is disposed). I do.

Next, the new primary winding bobbin suction chuck 73 of the transfer device 70 and the secondary winding bobbin suction chuck 74 chuck the primary winding bobbin 17A and the secondary winding bobbin 17B of the bobbin supply table 20, and the feed motor It is carried into the web take-up section 12 under the drive of 77. When the transfer device 70 faces the web pressing device (web holding device) 71, the cutting device 72
Cuts the web part at the end of the connection tape 38 between the end tape W3 and the leader tape W1 that are parked above,
The connection tape 38 is held by the connection tape suction portion 75. On the other hand, the end of the end tape W3 cut and separated by the cutting device 72 is joined to the new primary winding bobbin 17A, and the leader tape W
The rear end of 1 is joined to the secondary winding bobbin 17B. At this time, the primary take-up bobbin locking chuck 76 holds the primary take-up bobbin 17A whose winding has been completed.

Next, the transfer device 70 is laterally moved again by the driving of the feed motor 77, and the new primary winding bobbin suction chuck 73 is moved.
The new primary winding bobbin 17A, which has been chucked, is mounted on the web winding shaft 18 to prepare for a new winding operation.
The primary winding bobbin 17A and the secondary winding bobbin 17B after web winding, which are gripped by the next winding bobbin locking chuck 76 and the secondary winding bobbin suction chuck 74, are transferred to the product discharge section 21,
The cut connection tape 38 held by the connection tape suction unit 75 is discharged to the tape discharge unit 21A.

In addition, when the web is drawn out in the above-mentioned,
The edge position of each web is adjusted to an appropriate position by driving the motor 25 based on the detection result of the edge detector 33.

Also, when the web is drawn out in the above-mentioned,
The defective portion of each web is cut and removed inside and outside of the drawing line by the cutting devices 42 and 46 based on the detection result of the defect detector 88, and the web after the removal of the defective portion is connected to the web connection device 38.
It is reconnected by A and it comes out.

 Next, the operation of the above embodiment will be described.

According to the web winding device 10, the web supply table 24 includes a plurality of web holders 16A to 16C.
A to 16C can be selectively set at the web extraction position. Therefore, the web rolls 15A-1A are attached to the web holders 16A-16C.
By supporting 5C, this time the web W1
The web rolls 15A to 15C of the webs W1 to W3 can be immediately set at the web feeding position, and the webs W1 to W3 can be immediately fed. Therefore, the plurality of web rolls 16A to 16C can be efficiently handled, and the webs W1 to W3 can be supplied with high productivity.

In addition, since the above web holders 16A to 16C were arranged in parallel in the width direction of the material rolls 15A to 15C that they supported,
The moving direction for the table driving unit to set the web rolls 15A to 15C at the web feeding position (width direction of the web roll), and the moving direction for the edge adjustment driving unit to adjust the edge position of the web drawn this time. (The width direction of the raw roll). Therefore, the edge adjustment drive section is also constituted by the motor 25 as the table drive section, and the above-mentioned two moving operations can be performed by the drive control of the web supply table 24 by the motor 25. That is, the drive unit and the power transmission path for the above two moving operations can be unified. Therefore, the drive system for web supply can be simplified as much as possible.

In the practice of the present invention, the plurality of web holders of the web supply table respectively support the web rolls of the same type of web, and after the completion of the preceding web roll, the other web rolls are transferred. The same web may be used so that the same web is continuously cut out by setting it at the web drawing position.

[Effects of the Invention] As described above, according to the present invention, a plurality of material rolls can be handled efficiently, their webs can be supplied with high productivity, and a drive system for supplying the webs can be provided. Can be simplified.

[Brief description of the drawings]

1 is a front view showing a web take-up device, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a schematic diagram showing a web drive system, and FIGS. 4 (A) and 4 (B) are webs. 5 is a schematic diagram showing a device for cutting and discharging defective webs, FIG. 6 is a schematic diagram showing an edge detector, and FIGS. 7A and 7B are web connection devices. FIGS. 8A and 8B are schematic diagrams showing a transfer device, and FIGS.
The figure is a perspective view showing a transfer device, and FIG. 10 is a schematic diagram showing a web pressing device and a cutting device. 10 ... Web take-up device, 11 ... Web supply unit, 15, 15A
-15C ... raw roll, 16, 16A-16C ... web holder, 24 ... web supply table, 25 ... motor (table drive, edge adjustment drive), 33 ... edge detector.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masato Yamaguchi 598 Terayamacho, Midori-ku, Yokohama-shi, Kanagawa Prefecture (72) Inventor Noboru Yamato 1-4-162-1 Nakatomigaoka, Nara-shi, Nara Prefecture (72) Inventor Toshihiko Morita Suginami, Tokyo 2-16-7-1A, Igusa-ku, Japan (72) Inventor Hideki Yoshikawa 212, Kanonji-cho, Kashihara-shi, Nara (56) References JP-A-49-21196 (JP, A) Jpn. Sho 62-144855 (JP, U) Japanese Utility Model Application Showa 60-36958 (JP, U) Japanese Examined Patent Application 50-35846 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65H 19/10

Claims (1)

(57) [Claims] 1. A web supply table provided with a web holder for supporting a web roll of a web, wherein the web can be fed from a web roll of the web holder set at a web feeding position, and the web to be fed is provided. A web supply table comprising an edge detector for detecting the edge position of the web, and an edge adjustment drive unit for adjusting the edge position of the extracted web based on the detection result of the edge detector. A table drive unit for placing the web holders in parallel in the width direction of the material rolls supported by the web drive units and moving the table so that each web holder is selectively set at the web extraction position. An edge adjustment drive is also configured, and the table drive is The table can be moved so as to be selectively set at a web extraction position, and the table can be moved so as to adjust the edge position of the extracted web based on the detection result of the edge detector. A web supply device characterized by the above-mentioned.