JPH0295646A - Web take-up method and device therefor - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for winding webs (flexible strips) of thermal paper for color printing, plastic films, metal films, and the like.

[Prior Art] Conventionally, for example, three types of webs W1 to W3 are successively connected endlessly using a connecting tape, and each set of webs W1 to W3 is
3 and winding each set of webs W1 to W3 onto each winding bobbin, the winding end of the preceding web wound on the preceding winding bobbin (web W
The winding end of web W3 (the winding end of web W3) and the winding start end of the subsequent web (the winding start end of web W3) to be wound onto the subsequent winding bobbin are separated.

[Problem to be solved by the invention] However, in the above conventional web winding method,
When the separating position of the leading web and the trailing web is located at the winding end of the leading web, the connecting tape remains at the winding start end of the trailing web, and when the trailing web is wound, a portion of the connecting tape is placed on the winding core side. Since the winding thickness of the bobbin is locally increased, uneven winding may occur, which may impair the winding appearance of the subsequent winding bobbin.

On the other hand, if the separating position of the leading web and the trailing web is located at the winding start end of the trailing web, the connection tape remains and is exposed at the winding end of the leading web, impairing the winding appearance of the leading winding bobbin.

In addition, when separating the preceding web and the following web,
It is desirable to quickly and reliably cut these webs along predetermined cutting lines.

In the present invention, a leading web and a trailing web are connected with a connecting tape, the leading web is wound onto a leading winding bobbin, and the trailing web separated from the leading web is wound onto the trailing winding bobbin. The purpose is to improve both the winding form of a take-up bobbin and the winding form of a subsequent winding bobbin.

Another object of the present invention is to improve the workability of separating the preceding web and the succeeding web.

[Means for Solving the Problems] The present invention according to claim 1 connects a portion corresponding to the winding start end of the connecting web to a portion corresponding to the winding end end of the preceding web by using a trailing tape, so that the leading web and the following web are connected to each other. Continuously pump out,
A web winding method in which the preceding web is wound onto a winding bobbin, and then the winding start end of the succeeding web is separated from the preceding web and wound onto another new winding bobbin. In the process of joining the winding bobbin to another new winding bobbin, a part of the leading web at the end of winding that is close to the connecting tape and does not contain the connecting tape, and a part of the succeeding web that is close to the connecting tape and does not contain the connecting tape at the winding start end of the following web. of,
Two adjacent parts are cut with a connecting tape in between.

The present invention as set forth in claim 2 provides a method of connecting a portion corresponding to the winding end of the connecting web to a portion corresponding to the winding end of the preceding web using a trailing tape, and continuously feeding out the preceding web and the following web.
In a web winding device that repeatedly winds the preceding web onto a winding bobbin, then cuts off the winding start end of the succeeding web from the preceding web and winds it onto another new winding bobbin, In the process of joining to another new winding bobbin, a web holding device holds each of the leading web and trailing web on both sides of the connecting tape, and the web holding device holds the leading web and trailing web on both sides of the connecting tape. The device includes a cutting device that cuts the portion sandwiched between the held portions.

[Function] According to the present invention as set forth in claim 1.2, the leading web and the trailing web are separated at both the winding end end of the leading web and the winding start end of the trailing web, which sandwich the connecting tape. It is carried out as Therefore, the connecting tape is used only for the continuous unwinding of the leading and trailing webs and does not remain on either the leading winding bobbin that winds the leading web or the trailing winding bobbin that winds the trailing web. As a result, the leading web and the trailing web are continuously drawn out using the connecting tape, the leading web is wound onto the leading winding bobbin, and the trailing web separated from the leading web is wound onto the trailing winding bobbin. There is no possibility that a part of the connecting tape will remain at the end of the winding of the preceding web and be exposed, or a part of the connecting tape will remain at the beginning of winding of the succeeding web and locally increase the winding thickness on the core side. Both the winding form and the winding form of the subsequent winding bobbin can be made good.

Further, according to the present invention as set forth in claim 2, since the webs are cut by the cutting device while the side edges of the cut portions of the preceding web and the following web are held by the web holding device, the webs are cut in a predetermined manner. It is possible to quickly and reliably cut along a line, and the workability of separating the leading web and the trailing web can be improved.

[Embodiment] Fig. 1 is a front view showing the web winding device, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a schematic diagram showing the web unwinding drive system, Fig. 4 (A), ( B) is a schematic diagram showing a web cutting device, FIG. 5 is a schematic diagram showing a defective web cutting and discharging device, FIG. 6 is a schematic diagram showing an edge detector, and FIGS. 7 (A) and (B) are Schematic diagram showing the web connection device, Fig. 8 (
A) (B) is a schematic diagram showing a transfer device, FIG. 9 is a perspective view showing the 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 winding device 10 includes a web supply section 11, a web winding section 12, a web feeding section 13, and a bobbin supply/discharge section 14. ing.

The web supply unit 11 includes a web holder 16 that supports a web roll 15 of the web W, and is capable of feeding out the web from the web roll 15 of the web holder 16 set at a web feeding position.

The web winding section 12 includes a web winding shaft 18 on which the winding bobbin 17 can be wound, and can wind the web onto the winding bobbin 17. The web feeding section 13 includes a dancer roll 19
from the web supply section 11 to the web winding section 1.
I will guide you to 2. The bobbin supply/discharge unit 14 includes a primary winding bobbin 17A for winding the web this time, and a primary winding bobbin 17.
A bobbin supply stand 20 is provided with a secondary winding bobbin 17B to be joined to the winding end of the web wound on A, and the primary winding bobbin 17A and 2 after web winding are provided.
A product discharge section 21 is provided to discharge the next winding bobbin 17B.

The web supply section 11 and web winding section 12 will be described in detail below.

(A) In the web supply section 11, as shown in FIGS. 1 and 2, a web supply table 24 is provided on a guide rod 23 provided on a pedestal 22. Web supply table 2
4, three web holders 18A to 16C are arranged in parallel in the width direction of the web rolls 15A to 15C that they support. Here, each web halter 16A to 16C is set at the same level. Also, in this example,
The raw fabric roll 15A is a leader tape W1. Raw roll 1
5B is composed of a ribbon tape W2, and the raw roll 15C is composed of each web of an end tape W3.The thickness of the tapes Wl and W3 is about 0.1 mm, and the thickness of the tape W2 is about 10μ.

The web supply unit 11 includes a position-adjustable motor 25 such as a servo motor, and a feed screw 26 connected to the motor 25 is screwed into the web supply table 24 . Further, dogs 100A to 100C corresponding to the web holders 16A to 16C are provided at three positions on the web supply table 24, and a sensor 101 that is turned on by the dogs 100A to 100C is provided on the pedestal 22.
It is possible to detect that each of the web holders 16A to 16C is set at the web extending position.

The control device 27 controls the amount of rotation of the motor 25, obtains the output of the sensor 101, and controls each web halter 16A.
The web supply table 24 is moved so as to selectively set any one of the positions 16C to 16C to the web feeding position.

In addition, in the web supply section 11, as shown in FIG. 3, in each web holder 16A to 16C, each web roll 15A to 15C is attached to a drawing shaft 28A to 28C.
A position-adjustable motor 29 such as a servo motor that drives the
It is equipped with Clutches 31A to 31C are interposed in the power transmission path between the driving shaft 3o connected to the motor 29 and each of the protruding legs 28A to 28C, and the control device 27 controls the web holder 16 set at the protruding position. Only the clutches 31 (31A to 31C) are in the connected state. Further, the control device 27 controls the amount of rotation of the motor 29, thereby making it possible to feed out a predetermined amount of web from the web holder 16. In addition, in FIG. 3, 32 is a driven shaft.

Further, the web supply section 11 is provided with an edge detector 33 on the side of the web feeding line for detecting the edge position of the web being fed out. Edge detector 33
As shown in FIG.
This allows the web to move forward and backward in the width direction of the web along the forward and backward movement guide 37, thereby allowing the edge detector 33 to be retracted to a position where it does not interfere with each web when each web holder 16 moves in and out of the extended position, and The edge detector 33 can be set at the optimal working position for edge detection of each web.

Furthermore, in the web supply section 11, an edge detector 3
3 is transferred to the control device 27, and the control device 27 controls the motor 25 for driving the above-mentioned chietzle, and adjusts the edge position of the resulting web to an appropriate position. That is, in the web supply section 11, a single motor 25 is used as a drive section for moving the web supply table 24 and a drive section for adjusting the edge of the web.

In addition, in the web supply section 11, the primary winding bobbin 1
7A as the beginning of winding, connect the ribbon tape W2 to the end of the end tape W3 using the connecting tape 38 and wind it continuously, and then wrap the end tape W3 around the end of the ribbon tape W2 using the connecting tape 38. Use leader tape W
1 is connected and further wound continuously, and for this purpose a web connecting device 38A as described below is provided. As shown in FIG. 7(A), the web connection device 38A includes suction holding sections 39A to 39C provided in each web holder 16A to 16C, and a web supply table 24.
The suction holding part 41 of the tape application stand 40 installed on the feed line so as to face the tape application stand 40
The suction holding part 41 of the web holter 16A (16B or 16C) set at the extended position
(39B or 39C) and the overlapping mechanism section 4 disposed on the tape application table 40 and driving the suction holding section 41 thereof.
3 and a tape applying device 44 installed above the cutting device 42, and is configured as follows.

That is, the suction holding section 41 of the tape application stand 40 constitutes a preceding web suction holding section and holds the preceding web by suction. In addition, the suction holding section 3 of each web holder 16A to 16C
9A to 39C constitute a trailing web suction/holding section, which sucks and holds the trailing web. The cutting device 42 constitutes a leading web cutting device and a trailing web cutting device, and cuts the end of the leading web protruding from the suction holding portion 41, which functions as a leading web suction holding portion, and also functions as a trailing web suction holding portion. The ends of the trailing web protruding from the suction holding parts 39A to 39C are cut. In addition, each raw roll 1
The most extreme parts of 5A to 15C are the suction holding parts 3 of web holders 16A to 16C located on both sides of the web extending position.
It is cut by cutting devices 45 and 46 opposite to 9A to 39C, and its tip surface is prepared. The cutting devices 42, 45 are constructed as shown in FIGS. 4(A) and 4(B), and cut the web by a cutter blade 49 provided on a slider 48 that runs along a guide shaft 47 by a drive device (not shown). disconnect. The cutting device 46 is also constructed as shown in FIG.
The web is cut by a cutter blade 52 provided on a slider 51 that runs along a guide shaft 50 by a drive device (not shown). Note that the cutting device 46 can sandwich the web between an upper roller 54 driven by a motor 53 and a lower roller 55 in pressure contact with the upper roller 54 and eject the web.

The overlapping mechanism section 43 also includes a forward/reverse cylinder 57 provided on the tape application table 40 to move the forward/reverse table 56 back and forth, and a vertical cylinder 57 provided on the forward/reverse table 56 to move the up/down table 58 up or down. 59, and a swinging cylinder 61 which is provided on the up-down stand 58 and swings the suction holding part 41 of the tape application stand 4° around a support shaft 60. Each of the web holders 16A to 16C is provided with a vertical cylinder 62 for raising and lowering the suction holding parts 39A to 39C. As a result, the overlapping mechanism section 43 is configured to operate the suction holding sections 39A to 39C and the suction holding section 41 at the same height level on the web feeding line using the vertical cylinder 59 and the vertical cylinder 62. As shown in FIG. 7(B), first the suction holding part 41 is swung by the swing cylinder 61, then the suction holding part 41 is moved to the side of the suction holding parts 39A to 39C by the forward and backward movement cylinder 57, and then By returning the suction holding part 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 part 41 is fixed to the trailing web (for example, Lay it on top of the ribbon tape W2).

Next, the tape applicator 44 has a tape chuck 64 that sucks and holds the connecting tape 38 unwound from the tape roll 63 and a tape applicator cylinder 65 that moves the tape chuck 64 up and down, and is connected to the tape chuck 64. The tape 38 is supported and the connecting tape 38 is applied from above the overlapping portion of the leading web and the trailing web. The connection tape 38 supported by the tape chuck 64 is cut into a fixed length by a cutter blade 66, and the release paper unwound from the tape original roll 63 is wound onto a release paper take-up roll 67.

(B) In the web winding section 12, the web winding shaft 18
A pulse counter 69 is connected to a motor 68 that drives the motor 68, and by transmitting this count value to the control device 27, it is possible to count the amount of winding of the web to be wound this time.

The web winding device 10 sequentially winds the aforementioned end tape W3, ribbon tape W2, and leader tape W1 by predetermined amounts onto the primary winding bobbin 17A mounted on the web winding shaft 18 by the operation of the control device 27. It is possible.

At this time, the web supply section 11 continuously feeds out the end tape W3, the ribbon tape W2, and the leader tape W1 via the connecting tape 38, and the web winding section 12 feeds out the end tape W3, the ribbon tape W2, and the leader tape W1 one by one. After winding onto the next winding bobbin 17A, the secondary winding bobbin 17B is joined to the winding end of the leader tape W1, and an end tape W3 is newly connected to the leader tape W1 via the connecting tape 38.
Don't delay in separating the winding start end of the leader tape W1 from the leader tape W1 and winding it onto another new primary winding bobbin 17A.

The web winding section 12 performs the repeated web winding operations as described above, including a control device 27 (winding control section), a transfer device 70, a web pressing device (web holding device) 71,
The cutting device 72 performs the following steps.

That is, the control device 27 uses the pulse counter 69 described above.
The count value of Connect the tip of the ribbon tape W2 to the rear end of the tape W3 via the connecting tape 38, and
After winding the end tape W3, in the process of winding a predetermined amount of the ribbon tape W2 onto the primary winding bobbin 17A, the motor 68 is temporarily stopped, and the web connecting device 38A
Connect the tip of the leader tape W1 to the rear end of the ribbon tape W2 via the connecting tape 38, and
In the process of winding the leader tape W1 by a predetermined amount onto the primary winding bobbin 17A, the motor 68 is temporarily stopped and the web connecting device 38A connects the leader tape W1 to the rear end of the leader tape W1. Connect the tip of the new end tape W3 via the connecting tape 38, and connect the leader tape W3.
The leader tape W used in above ■ under the winding completion state of 1.
1 and the new end tape W3 is set at the cutting work position (the position where the cutting device 72 is installed).

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

The transfer device 70 transfers each of the primary winding bobbin 17A and the secondary winding bobbin 17B supplied to the bobbin supply table 20 to the vacuum of a new primary winding bobbin suction chuck 73 and a secondary winding bobbin suction chuck 74. A connection tape suction unit 75 that can adsorb the connection tape 38 by vacuum suction and set these winding bobbins 17A and 17B on both sides of the above-mentioned cutting work position in the web pass line of the web winding unit 12. is set at the above-mentioned cutting operation position, and (2) the primary winding bobbin 17A, which has been completely wound on the web winding shaft 18, is chucked by the primary winding bobbin locking chuck 76. The primary winding bobbin locking chuck 76 is
A pair of opposing pawls 77A are opened and closed by a pawl opening/closing cylinder 78A, and the receiving portion 79 of the pawl 77A opens and closes the primary winding bobbin 1.
Lock both ends of 7A. 79A is a spring.

Note that the transfer device 70 has a connection tape adsorption section 75.
A pair of web pressing parts 80 are provided on both sides of the web. 80
A is a buffer lapse blink of the holding portion 80. In addition, as shown in FIG. 9, non-slip rubber plates are attached to the bobbin, connecting tape 38, and web holding parts of the suction chucks 73 and 74, the connecting tape suction part γ5, the locking chuck 76, and the holding part 80. 81 is provided.

As shown in FIG. 10, the web pressing device (web holding device) 71 is disposed opposite to the suction chucks 73 and 74 of the transfer device 70 set in the web winding section 12 with a web pass line in between. Each set of first pressing parts 8
2. It has a second pressing part 83. First pressing part 8
2 rises from the original position below the web pass line and cuts the leader tape W1 and end tape W3 on both sides of the connecting tape 38 set at the cutting work position before the cutting device 72 cuts the web as described later. , the primary winding bobbin 1 chucked on the suction chucks 73 and 74.
7A, it is pressed and held against the secondary winding bobbin 17B in preparation for the cutting operation of the cutting bag N72. 2. Before the cutting operation of the cutting device 72, the second pressing section 83 holds each of the glue tape W1 and the end tape W3 on both sides of the connecting tape 380 between the web holding section 80 and the cutting device 72. In preparation for the cutting operation, (1) After the cutting device 72 completes the cutting operation, it rises from its original position below the web pass line and cuts the web while holding the ends of the leader tape W1 and the end tape W3 by vacuum suction. The presser part 80 is pushed up to press these webs Wl and W3 against the bobbin surfaces of the corresponding bobbins 17B and 17A, and their ends are joined to the double-sided adhesive tape provided on the bobbin surfaces.

As shown in FIG. 10, the cutting device 72 joins each bobbin 17B, 17A with the leader tape W1 and end tape W3 on both sides of the connecting tape 38 set at the above-mentioned cutting position by the second pressing part 83. Cut the part that is sandwiched between the two parts. The cutter blades 84 of the cutting device 72 are provided on both sides of a slider 85, and the slider 85 is slidably supported by a guide shaft 86 provided below the web path line and perpendicular to the path line, and is moved by a cylinder 87. . At this time, the disconnected connection tape 3
8 is suctioned and held by the connection tape suction section 75.

After cutting both side webs of the connecting tape 38, the transfer device 7o moves laterally, attaches the new primary winding bobbin 17A chucked by the suction chuck 73 to the web winding shaft 18, and attaches it to the locking chuck 76. Primary winding bobbins 17A and 2 after web winding are chucked by the suction chuck 74
The next winding bobbin 17B (product) is transferred to the product discharge section 21. Further, the cut connection tape 38 held by the connection tape adsorption section 75 is transferred to the tape ejection section 21A.

The web winding device 10 includes a web defect treatment device as described below. That is, this defective part processing device includes the control device 27 as a pull-out control section, the cutting device 42 as a device for cutting the leading end of the defective portion, the cutting device 46 as a device for cutting the rear end of the defective portion, and the cutting device 46 as a device for cutting the rear end of the defective portion. The web connecting device 38A connects the non-defective web to the web from which the portion has been removed, and a defect detector 88 detects a defective indication of the web.

That is, the defect detector 88 is disposed on the side of the web feed-out line, upstream of the edge detector 33 described above, and detects the defect display attached in advance to the front and rear of the defective portion of each web. This detection result is transferred to the control device 27. The control device 27 stops feeding out the web on condition that the defect detector 88 detects a defect. The cutting device 42 cuts the defective end of the web whose feeding has been stopped within the feeding line by the above-described cutting operation. The cutting device 46 is configured to cut the web holders 16A to 16C of the defective web with the tip of the defective portion cut off.
6, the rear end of the defective web is cut by the above-mentioned cutting operation, and the defective portion is discharged by the above-mentioned upper and lower rollers 54 and 55. The web connecting device 38A connects the rear end of the preceding web, which has been removed as a defective web and remains in the feeding line, to the web holder 16A, which is returned to the feeding line from a position opposite to the cutting device 46.
The leading ends of the non-defective webs of ~16C are connected by the connection operation using the connection tape 38 described above. After this, the control device 27 resumes continuous feeding of the non-defective web.

Hereinafter, each web W1 to W3 is continuously wound around the primary winding bobbin 17A by the web winding device 10, and the secondary winding bobbin 17B is attached to the winding end of the leader tape W1. I will explain about the picking work.

■Prior to winding, each web roll 15 of each web W1 to W3 is placed in each web holder 16A to 16C of the web supply section 11.
A to 15C will be installed. In addition, the bobbin supply/discharge section 1
A primary winding bobbin 17A and a secondary winding bobbin 17B are supplied to the bobbin supply stand 20 of No. 4. Further, by driving the motor 25, the web holder 16C of the end tape W3 is set on the web feed line of the web supply section 11, and the primary winding bobbin 17A is attached to the web winding shaft 18 of the web winding section 12. Then, the winding start end of the end tape W3 is joined to this primary winding bobbin 17A. At this time, the tips of the web holders 16A and 16B are held by the suction holding parts 39A and 39B, and are in a standby state.

(2) 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 onto the primary winding bobbin 17A. In the process of winding the end tape W3, the motor 29.68 is temporarily stopped, and the cutting device 4
At step 2, the end tape W3 is cut. and motor 25
The web holder 16B of the ribbon tape W2 is laterally moved and set on the web feeding line of the web supply section 11 by the drive of The tips of the two are overlapped and connected.

(2) By restarting the motor 29.68, the ribbon tape W2 is wound onto the bobbin 17A following the end tape W3. Even in the process of winding up a predetermined amount of ribbon tape W2, the motors 29 and 68 are temporarily stopped, and the ribbon tape W2 is cut by the cutting device 42. Then, by driving the motor 25, the web holder 16A of the leader tape W1 is laterally moved and set on the web feeding line of the web supply section 11, and the web connecting device 38A moves the web holder 16A of the leader tape W1 to the web feeding line of the web supply section 11.
2 through the connecting tape 38 to the rear end of the leader tape W.
The tip portions of 1 are overlapped and connected.

(2) By restarting the motor 29.68, the leader tape W1 is wound onto the bobbin 17A following the ribbon tape W2. In the process of winding this leader tape W1 by a predetermined amount,
The motor 29.68 is temporarily stopped, and the cutting device 42 cuts the leader tape W1. Then, by driving the motor 25, the web holder 16C of the end tape W3 is laterally moved and set on the web feeding line of the web supply section 11, and the web holder 16C of the end tape W3 is set by the web connecting device 38A to the rear end of the leader tape W1 via the connecting tape 38. Then, the leading end of the new end tape W3 is overlapped and connected.

■ With the winding completed on the primary winding bobbin 17A, the above ■
Leader tape W1 and new end tape W3 used in
The connection tape 38 between the cutting work position (cutting device 72
installation position).

0 Next, the new primary winding bobbin suction chuck 73 and secondary winding bobbin suction chuck 74 of the transfer device 70 chuck the primary winding bobbin 17A and the secondary winding bobbin 17B of the bobbin supply table 20, and feed them. The web is conveyed into the web winding section 12 under the drive of the motor 77. Transfer device 70
is opposed to the web pressing device (web holding device) 7], the cutting device 72 cuts the leading and trailing web portions of the connecting tape 38 between the end tape W3 and the leader tape W1 that are stopped at the point (3) above. The connection tape 38 is held in the connection tape adsorption section 75. On the other hand, the leading 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 rear end of the leader tape W1 is joined to the secondary winding bobbin 17B. Further, at this time, the primary winding bobbin locking chuck 76 holds the primary winding bobbin 17A which has been completely wound.

■Next, the transfer device 70 is moved laterally again by the drive of the feed motor 77, and attaches the new primary winding bobbin 17A chucked by the new primary winding bobbin suction chuck 73 to the web winding shaft 18. In preparation for a new winding operation, the primary winding bobbin 17A and the secondary winding bobbin after web winding are chucked by the primary winding bobbin locking chuck 76 and the secondary winding bobbin suction chuck 74. 17B is transferred to the product discharge section 21, and the cut connection tape 38 held by the connection tape adsorption section 75 is discharged to the tape discharge section 21A.

(2) Note that when the webs are fed out in steps (1) to (3) above, 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.

■Furthermore, when the webs are fed out in steps (■) to (■) above, the defective portions of each web are cut and removed inside and outside the feeding line by the cutting device 42, 46 based on the detection results of the defect detector 88, and the defective portions are removed. The subsequent web is reconnected and fed out by the web connecting device 38A.

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

According to the web winding device 10, separation of the leading web (leader tape) Wl and the trailing web (end tape) W3 is performed at the end of the winding of the leading web W1 and the winding start of the trailing web W3, which sandwich the connecting tape 38. Both positions are used as cutting positions. Therefore, the connecting tape 38 is used only for continuous unwinding of the leading web W1 and the trailing web W3, and is used both on the side of the leading winding bobbin that winds the leading web W1 and on the side of the trailing winding bobbin that winds the trailing web W3. It doesn't remain either. As a result, a portion of the connecting tape 38 may remain on the winding end side of the preceding web W1 and be exposed, or a portion of the connecting tape 38
This portion does not remain on the winding start end side of the trailing web W3 and locally thicken the winding thickness on the winding core side, and the winding shape of the preceding winding bobbin and the winding shape of the succeeding winding bobbin are both good. be able to.

Further, according to the web winding device 10, the preceding web W1 and the following web W3 are held by the web pressing device (web holding surface) 71 on the side edge of the cut portion, while the webs W1,
Since W3 is cut by the cutting device 72, the webs W1 and W3 can be cut quickly and reliably along the predetermined cutting line, and the preceding web W1 and the following web W3 can be cut quickly and reliably.
This improves the separation workability.

[Effects of the Invention] As described above, according to the present invention, a leading web and a trailing web are connected with a connecting tape, the leading web is wound on a leading winding bobbin, and the trailing web is separated from the leading web. When winding onto the subsequent winding bobbin, both the winding form of the preceding winding bobbin and the winding form of the succeeding winding bobbin can be made good.

Further, according to the present invention, it is possible to improve the workability of separating the preceding web and the succeeding web.

[Brief explanation of the drawing]

Figure 1 is a front view showing the web winding device, Figure 2 is a plan view of Figure 1, Figure 3 is a schematic diagram showing the web unwinding drive system, Figures 4 (A) and (B) are the web winding device. 5 is a schematic diagram showing a defective web cutting and ejecting device, FIG. 6 is a schematic diagram showing an edge detector, and FIG. 7 (A) and (B) are schematic diagrams showing a web connecting device. Schematic diagram shown in Figure 8 (
A) (B) is a schematic diagram showing a transfer device, FIG. 9 is a perspective view showing the transfer device, and FIG. 10 is a schematic diagram showing a web pressing device and a cutting device. 10... Web winding device, 17. 17A, 17B... Winding bobbin, 38... Connection tape, 71... Web pressing device (web holding device), 72...
... Cutting device, Wl... Leader web (following web) W3... End tape (preceding web). Agent Patent Attorney Osamu Shiokawa Figure 4 (A) Figure 4 (B) Figure 5 Figure 8 (A) Figure 8 (B) 7A IsoA

Claims (2)

[Claims] (1) Use a connecting tape to connect the part corresponding to the winding end of the preceding web to the part corresponding to the winding start end of the trailing web, continuously feed out the leading web and the trailing web, and wind the leading web onto a take-up bobbin. In a web winding method in which the winding start end of the trailing web is repeatedly separated from the preceding web and wound onto another new winding bobbin, the trailing web is joined to another new winding bobbin. In the process of rolling, a part of the leading web at the end of winding that is close to the connecting tape and does not contain the connecting tape, and a part of the trailing web at the beginning of winding that is close to the connecting tape and does not contain the connecting tape are adjacent to each other with the connecting tape in between. A web winding method characterized by cutting two parts. (2) Use a connecting tape to connect the part corresponding to the winding end of the preceding web to the part corresponding to the winding start end of the trailing web, continuously feed out the leading web and the trailing web, and wind the leading web onto a winding bobbin. After that, in a web winding device that repeatedly separates the winding start end of the trailing web from the preceding web and winds it onto another new winding bobbin, the trailing web is joined to another new winding bobbin. In the process of cutting, a web holding device holds each of the leading web and trailing web on both sides of the connecting tape, and the leading web and trailing web on both sides of the connecting tape are cut at the portions that are sandwiched between the parts held by the web holding device. 1. A web winding device comprising a cutting device.