JPH022774B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is capable of cutting a web of paper, plastic film, etc. when it reaches full volume, cutting the web while continuously conveying the web without stopping. This invention relates to an automatic web winding device that automatically performs a core switching operation for winding a web.

Various devices have been proposed for this type of automatic web winding device. A typical example of this is to use a serrated cutter to cut the web, and arrange an arcuate web guide along the surface of a new winding core so as to form a web path between the two. An example of such a device is a device that guides the web passage through a web path using an air flow that blows out the web after cutting, and winds the web around a new core.

However, in such devices, the tip of the web is not fixed, so it does not come into close contact with the surface of the new core, and the tip of the web is cut into a triangular wave shape, so when it is wrapped with the next web, the web is The leading edge of the web frequently breaks, and the presence of air jets in the web path makes the web conveying state unstable, resulting in wrinkles at the leading edge of the web during winding. .

For webs such as toilet paper, where the quality in the vicinity of the roll core does not need to be given much importance, the above-mentioned apparatus may be sufficient; In the case of photographic film, etc., if the web continues to be wound with the leading edge of the web broken, the shape of the broken part will be transferred to the web from the next round, impairing the flatness of the web, and causing pressure capping. It also becomes. Furthermore, if wrinkles occur in the initial stage of winding, they will also cause plastic deformation in subsequent parts of the web, causing a decline in the quality and yield of the entire web. Losses in the initial stage of winding eventually lead to large losses in terms of money.

Conventionally proposed devices are unsuitable for winding photographic film because they often cause scratches on the web or damage the film due to static electricity called static electricity, and lack reliability in switching operations. Therefore, in the conventional winding of photographic film, when changing the winding core, the web conveyance is temporarily stopped and the switching operation is carried out by obtaining the core. Therefore, equipment called an accumulator is required to store the web while the winding device is stopped, and this also hinders labor saving. Furthermore, with conventional equipment, automation increases the equipment cost for the simple task of cutting the web and winding it around the core. Devices that enable so-called double-sided winding, such as double-sided winding, have had drawbacks such as being extremely complex.

The present invention was developed based on the above circumstances, and its purpose is to make it possible to unmanned the work of changing the web core, and to transport the web without stopping the device. It is possible to perform core switching work with high reliability, and there is no risk of web tip bending or wrinkling, making it ideal for photographic film, etc., where the quality of the wound material near the winding core is important. It is an object of the present invention to provide an automatic winding device that can be suitably used for winding, and furthermore, to provide an automatic winding device that has a simple structure, has low equipment costs, and is capable of winding on both sides.

The present invention is characterized by a double-sided adhesive tape pasting mechanism for pasting a double-sided adhesive tape piece on a double-sided adhesive tape pasting area on the surface of the web to be conveyed, and a leading edge of the double-sided adhesive tape pasting area of the web. a cutting mechanism; a holding and guiding mechanism that holds and guides the leading part of the subsequent web cut by the cutting mechanism using a holding member, and adheres the double-sided adhesive tape piece of the web to the surface of a new core; The point is that it is equipped with the following.

Examples of the present invention will be described below.

FIG. 1 is a front view showing an outline of an automatic web winding device according to an embodiment, and W indicates a web such as photographic film. This web W runs along a web conveyance path P, and the web conveyance path P continues to a turret type winder 1. In this turret type winding machine 1, a winding core 12, 13 and two guide rollers 14, 15 are installed at both ends of a cross-shaped turret arm 11, which is attached to rotate around a rotation center axis 16. In this state, the web W is attached to one winding core 12.
is being wound.

The web conveyance path P includes a guiding and feeding mechanism 2 that performs a guiding operation and a feeding operation of the web W by switching from the upstream side to the downstream side, and a leading part of the web W when the winding core is changed. A pull-back mechanism 3 that pulls back the web W to adjust the position of the web W, and a double-sided adhesive tape sticking mechanism (hereinafter referred to as the ``applying mechanism'') that affixes a double-sided adhesive tape piece (hereinafter referred to as the ``tape piece'') to the traveling web W. )4, Web W
A cutting mechanism 5 for cutting the web W, and a holding and guiding mechanism 6 for guiding the cutting leading part of the subsequent web W to the surface of a new core 13 are provided.

The guide feeding mechanism 2 has an air cylinder 2 at its base end.
An arm 23 is attached to the arm 23 and swings around a shaft 22; a guide roller 24 is attached to the tip of the arm 23; The shaft end of the lead-in roller 25 is connected to an electric motor via an electromagnetic clutch (not shown). has been done.

The pull-back mechanism 3 consists of an arm 33 whose base end is attached to an air cylinder 31 and swings around a shaft 32, and a guide roller 34 attached to the tip of this arm 33, so that the web W is always As shown in FIG. 1, the air cylinder 31 is guided along the surface of the lead-in roller 25.
The guide roller 34 is arranged so as to remain below the lead-in roller 25 even when the cylinder rod moves backward and the arm 33 rises to the position indicated by the two-dot chain line.

The pasting mechanism 4 includes a first double-sided adhesive tape piece sticking machine (hereinafter referred to as "sticking machine") 40 that sticks a tape piece to one side S of the web W, and the other side of the web W.
It consists of a second applicator 40' for applying the tape strip to S', and the first applicator 40 and the second applicator 40' are alternatively driven. The first labeling machine 40 can be a commercially available labeling machine, and includes, for example, a press block 44 disposed opposite to the web conveyance path P, and a tape piece supply roll 41 via this press block 44. It consists of an interleaving paper 45 facing the interleaving paper take-up roll 42, an air cylinder 46 for moving the pressing block 44 forward and backward, and a pedestal 47 which also serves as the pressing block 44' of the second pasting machine 40'. Paper 45 has strips of tape 43 set at intervals along its length on a release layer on its surface. The second pasting machine 40' includes:
It has the same configuration as the first pasting machine 40. Since these pasting machines 40, 40' are driven alternatively, they function as a pressing block for one pasting machine and a pedestal for the other pasting machine, so that the first pasting machine 40 pressing blocks 44
When the tape piece 43 is placed on the pressing surface of the second applicator 40', the operation is performed so that the tape piece 43' is not placed on the pressing surface of the pressing block 44' of the second applicator 40'. When attaching the tape piece 43' to the other surface S' of the web W, the above-mentioned relationship is reversed. 4 in the diagram
1' is a tape piece supply roll, 42' is a paper take-up roll, 45' is a paper sheet, 46' is an air cylinder, 47'
is a pedestal that also serves as a pressing block 44 for the first pasting machine 40.

The cutting mechanism 5 includes a first cutter rotor 51 and a second cutter rotor 51', which are provided to face each other via the web conveyance path P, and each of these cutter rotors 51 and 51'. These cutter rotors 51 and 51' are composed of cutting blades 52 and 52' that protrude upward from the upper back and extend over the entire width of the web W.
2, 52' is an axis X extending in the width direction of the web W,
It rotates at a speed that matches the conveyance speed of the web W at the contact point b with the web conveyance path P along a circular locus that is centered on X' and extends along the circumference of a circle that has a tangent to the surface of the web W. The cutting blades 52 and 52' are mounted on a frame (not shown) in FIG. 1, and are rotated in synchronization with each other, so that the tips of the cutting blades 52 and 52' simultaneously pass through the contact point b. The relative position of the cutter rotors 51, 51' with respect to the pasting mechanism 4 and the rotation start timing are such that the cutting blades 52, 52' cut the web W at the leading edge of the tape piece pasting area, for example, at the leading edge position of the tape piece. The setting is such that the cutting occurs at . The rotation start timing of the cutter rotors 51, 51' varies depending on the conveyance speed of the web W, and a known method can be used to control the rotation start timing. As the drive source (not shown) for the cutter rotors 51, 51', it is preferable to use a DC servo motor with good response. Here, in the first cutter rotor 51 and the second cutter rotor 51',
The holding guide mechanism 6 is installed in each case,
The cutter rotors 51, 51' and the holding guide mechanism 6 have the same structure for the web W, so the cutter rotors 51, 51' and the holding guide mechanism 6 are provided on one side of the web conveyance path P. 6,
This will be explained with reference to FIGS. 2 and 3. At both ends of the first cutter rotor 51, tubular shaft bodies 53A and 53B having the axis X as the central axis are provided. Frame FA,
It is rotatably supported by the FB. this frame
Between the FA and FB, the above-mentioned guide and feed mechanism 2, pullback mechanism 3, tape piece sticking mechanism 4, etc. are arranged, and the shafts of each mechanism are attached. Inside the cutter rotor 51, one shaft body 53 is provided.
A ventilation passage 532 communicating with the cavity 531 of B is formed, and this ventilation passage 532 is connected to the cavity 5
31 along the axis X, and is bent 90 degrees from the center of the cutter rotor 51 to reach the surface of the cutter rotor 51. The cavity 53
1 communicates with a compressed air source, also not shown, from the shaft end of the shaft body 53B via a rotary joint, not shown. In FIG. 1, 55 and 55' are guide rollers.

The holding and guiding mechanism 6 includes a first holding and guiding mechanism that adheres the tape piece on one side S of the web W to the surface of the winding core, and a first holding and guiding mechanism that adheres the tape piece on the other side S' side of the web W to the surface of the winding core. However, in this embodiment, as will be clear from the operation described below, the functions of the first holding and guiding machine and the second holding and guiding machine are interchanged. , have the same mechanical configuration, and the first holding guide device has brackets 56, 56' that protrude rearward from the back surfaces of the cutter rotors 51, 51'.
A support arm 62, 62' is attached to rotate around the shaft portion 61, 61' along a plane parallel to the plane in which the arm 1, 51' is rotated, and an upper end of the support arm 62, 62'. It consists of hollow boxes (hereinafter referred to as "pressing drums") 63, 63' as holding members, which are provided so as to extend over the entire width of the web W, and these pressing drums 63, 63' are formed on pressing surfaces 631, 631' along the circular locus of rotation of the cutting blades 52, 52'. The lower ends of the support arms 62, 62' are connected via tension springs 64, 64' to brackets 57, 57' extending from the lower ends of the cutter rotors 51, 51', and The support arm 62 attached to the second cutter rotor 51 is constrained counterclockwise in the figure, and the support arm 62' attached to the second cutter rotor 51' is constrained clockwise in the figure. Protrusions 621, 621' are formed near the lower ends of the support arms 62, 62',
These protrusions 621, 621' are connected to the holding guide mechanism 6.
When the cutter rotor 5 is not operated, the cutter rotor 5
Stopper 65 provided on the back of 1,51',
65'. Here, on the tops of the stoppers 65, 65', as shown in FIG.
51 is preferably provided. Reference numeral 66 in FIG. 3 is a stopper for regulating the stop position of the rotated pressing drum 63, and it is preferable to similarly provide a shock absorbing material 661 at the top of this stopper 66. This stopper 66 is omitted in FIG. 2. The press drum 63 will be explained with reference to FIG.
is formed, and the hollow portion is connected to the ventilation passage 53 in the cutter rotor 51 with a hose 68.
It is connected to 2. As will be described later, the pressing drum 63 sandwiches the web W between itself and the winding core 13 and fixes the web W to the winding core 13 through the tape piece using the contact pressure, so the surface layer on the pressing surface 631 is made of neoprene. It is preferably made of a cushioning material such as rubber. As shown in FIG. 2, a shaft member 69 is fixed to one end of the pressing drum 63, and a cam follower 691 is rotatably supported at the tip of the shaft member 69. These are omitted in FIG. 3.

Inside the frame FA, a cam plate 692 is disposed in a section where the oscillating motion of the press drum 63 is required, as will be described later, and as the cutter rotor 51 rotates, the cam follower 691 comes into contact with and separates from the cam plate 692. As a result, the pressing drum 63 is at a protruding position (indicated by a solid line in FIG. 3) where the pressing surface 631 protrudes outward from the circular locus 5 of the cutting blade 52.
The pressing surface 631 performs an oscillating motion between a storage position (indicated by a two-dot chain line in FIG. 3) where the pressing surface 631 is stored inward from the circular locus 5 of the cutting blade 52. That is, this cam plate 692 is configured so that when the cutter rotor 51 rotates from the position shown in FIG. After the pressing drum 63 rotates from the protruding position to the storage position and the back of the pressing drum 63 passes near the contact point b in the circular locus 5 of the cutting blade 52, the pressing drum 63 rotates from the protruding position to the storage position.
is formed into a shape that returns to the protruding position by the restoring action of the spring 64.

In an embodiment with such a configuration, the core on which the web W is wound is switched in the following manner. While the web W is being wound around the winding core 12, the cylinder rod of the air cylinder 21 in the guide and feed mechanism 2 is retracted, the guide roller 24 is separated from the lead-in roller 25, and the lead-in roller 25 is not shown in the figure. The connection with an electric motor (not shown) is cut off by a clutch that does not work, and the roller functions as a free roller. At this time, the cylinder rod of the air cylinder 31 of the pullback mechanism 3 moves forward and the guide roller 3
4 is in the lowered position as shown by the solid line in Figure 1,
The web W is wound around the core 12 via the lead-in roller 25, the guide rollers 34, 55, and 14. On the other hand, a piece of tape 43 to be pasted next is set on a pressing block 44 associated with the first pasting machine 40 of the pasting mechanism 4. When it is detected by an appropriate means that winding of the web W by the winding core 12 is nearing completion, the lead-in roller 25
When the driving electric motor starts rotating and reaches a rotational speed corresponding to the conveying speed of the web W, the clutch acts and the driving force of the electric motor is transmitted to the lead-in roller 25. Next, the air cylinder 21 associated with the guide and feed mechanism 2 operates to lower the arm 23, thereby causing the guide roller 24 to move toward the lead-in roller 2.
Insert the web W together with 5. At this time, since the circumferential speed of the lead-in roller 25 matches the conveyance speed of the web W as described above, the lead-in roller 25
By forming the nip roller portion with 5, the web W does not slip. On the other hand, in the turret type winder 1, the winding core 13, which will next wind up the web W, is accelerated by an electric motor (not shown) until its circumferential speed matches the transport speed of the web W. In the winding roll in which the web W is wound around the winding core 12, the tension is controlled by an electric motor (not shown) connected to the winding core 12 before the above-mentioned nip roll portion is formed. After the nip roller portion is formed, the winding is controlled to be constant tension. Subsequently, when the winding of the web W by the winding core 12 is completed, the end of winding is detected by an appropriate means, and the air cylinders 46, 4 of the pasting mechanism 4 are activated.
6' is actuated, thereby pushing the pressure blocks 44,
44' moves forward and instantly nips the web W,
The tape piece 43 on the pressing block 44 of the first applicator 40 is applied to one side S of the web W. Here, since a release layer is formed on the interleaving paper 45, the adhesive force between the tape piece 43 and the web W is stronger than the adhesive force between the tape piece 43 and the web W.
The adhesive force between the tape piece 43 and the interleaving paper 45 is stronger than that between the tape piece 43 and the interleaving paper 45. Therefore, the tape piece 43 is easily peeled off from the interleaving paper 45 and the web W
will be transferred to. And cutter rotor 51,5
1' begins to rotate toward the web transport path P in synchronization, and as shown in FIG.
is cut at the front edge position of the tape piece 43. When the cutting of the web W is completed in this way, a limit switch (not shown) is activated to issue a cutting completion signal, and in response to this signal, the cylinder rod of the air cylinder 31 of the pull-back mechanism 3 retreats, thereby causing the arm 33 and the guide roller 34 rises to the position shown by the two-dot chain line. The amount of swing of the pull-back mechanism 3 up to the guide roller 34 is determined by the amount of swing of the lead-in roller 25 as shown in FIG. The path length from the intersection A of the web W to the intersection B of the web W at the guide roller 34 at the solid line position, and the path length from the intersection A to the intersection B via the intersection C of the web W at the guide roller 34 at the two-dot chain line position. The difference from the path length is approximately the same as the distance L described above. On the other hand, the pressing drum 6
Between the contact points of the circular loci l6 and l6' drawn in the protruding position, 3 and 63' are placed in the stowed position and rotated as shown in FIG. placed in the protruding position as shown in the figure. The subsequent web W, which has been pulled back upward after cutting, is continuously fed out by the lead-in roller 25, so that the leading part of the web W advances downward in an unrestrained state, but before the cutting of the web W is completed. Compressed air from a compressed air source (not shown) is injected from the air outlet 67 of the pressing drum 63' related to the second cutter rotor 51', so that the leading portion of the web W is directed toward the first cutter rotor 51'. The rotor 51 is in a state as if it were stuck to the pressing surface 631 of the pressing drum 63, that is, it is held by the pressing drum 63. As the cutter rotor 51 rotates, the pressing drum 63 moves to the protruding position while holding the leading part of the web W from the other surface S', and then rotates along the circular locus l6. The winding core 13 on which the winding is to be carried out has its surface touching this circular locus l6 or is located slightly inside the circular locus l6 (however, in FIGS. 4 to 6, the winding core 13 is not shown for convenience). ), as shown in FIG. 6, the tape piece on one side S of the web W is guided to the surface of the winding core 13 and pressed, thereby adhering it.
As a result, the leading portion of the web W is fixed to the new winding core 13 via the tape piece 43. After cutting, the web W continues to advance until it reaches the pressing drum 63.
When the web W is guided to the surface of the winding core 13 by the dotted lines in FIG. However, since the web W is pulled back by a length corresponding to L by the pull-back mechanism 3, it is positioned at the front end of the pressing surface 631. As the cutter rotor 51 rotates further, the press drum 63 releases a new core 1.
3, a limit switch (not shown) is activated to issue a fixation completion signal, and in response to this signal, the cylinder rod of the air cylinder 31 of the pull-back mechanism 3 moves forward, and the guide roller 34 is lowered to the position shown by the solid line in FIG. Ru. It is sufficient that the fixing completion signal is issued before the leading end of the web W wraps with the next web W, so-called winding. When winding is completed, the new core 13 is rotated at a circumferential speed slightly faster than the conveyance speed of the web W, and the new core 13 is rotated between the nip roller section formed by the guide roller 24 and the lead-in roller 25 and the new core 13. When the slack of the web W is absorbed and an appropriate tension is generated in the web W, the cylinder rod of the air cylinder 21 of the guide feed mechanism 2 is moved back to raise the guide roller 24 and release the nip condition, and at the same time, the clutch (not shown) is released. When activated, the lead-in roller 25 is released from the driving force of the electric motor and becomes free. Further, the winding speed of the new winding core 13 is controlled to match the conveying speed of the web W at the time when the nip state is released. After cutting the web W, the electric motor for driving the winding core 12 decelerates and stops according to a predetermined deceleration curve. This completes the core switching cycle, and the turret arm 11
The winding roll is rotated counterclockwise around the rotation center axis 16 to a position where it becomes almost horizontal in FIG. counterclockwise to the normal winding position.

Here, when winding the web W around the winding core 13 clockwise in the figure, a tape piece 43' is pasted on the other side S' of the web W by the second pasting machine 40', and
Pressure drum 6 related to first cutter rotor 51
Compressed air may be injected from the air outlet No. 3 to press the leading portion of the web W against the pressing surface 631' of the pressing surface 63' related to the second cutter rotor 51'.

Accordingly, the present invention applies a tape piece to one side of the web being conveyed, cuts the web at the leading edge of the tape piece application area, for example, at the front edge position of the tape piece, and also cuts the web at the leading edge position of the tape piece. Holding and guiding the leading part of the web cut by the member,
Since the configuration is such that the tape piece of the web is adhered to the surface of a new core, (a) the conventional manual core switching work can be performed automatically and with high reliability.

b) Temporarily stopping the device by applying the tape pieces instantaneously, and by operating the parts related to cutting the web and the holding members related to the holding guide at a speed that matches the conveyance speed of the web. It is possible to continuously change the winding core while the web is being conveyed without any need for additional equipment such as an accumulator.

C) As in the embodiment, the pasting mechanism is constituted by a first pasting machine and a second pasting machine that are driven alternatively, and the holding guide mechanism is configured by the first holding guide machine and the second holding guide machine. By configuring the mechanism, it is possible to obtain a so-called double-sided winding device with a simple configuration.

The web is then cut at the leading edge of the area where the tape piece is applied, and the leading part, that is, the cut end, is guided to the winding core, so the leading part of the web is conveyed in close contact with the winding core through the tape piece. Therefore, a) the web is securely wrapped around the next web during winding, and there is no risk of the web tip being bent.

b) Since the conveyance condition of the leading part of the web on the surface of the winding core is stable, there is no risk of wrinkles occurring in the leading part of the web, and as a result, the quality of the wound product near the winding core is important. It can also be used for winding photographic film, etc.

Furthermore, in the above embodiment, the following effects are obtained in addition to the effects of the present invention.

The cutting blades 52, 52' of the cutting mechanism 5 and the pressing drums 63, 63' of the holding and guiding mechanism 6 are rotated by a common rotary cutter 51, 51', and the pressing drums 63, 63' are rotated by the cutting blades 52, 5.
The configuration of the cutting mechanism 5 and the holding guide mechanism 6 is such that the swinging motion is performed between the storage position retracted inward from the circular locus l5, l5' related to 2' and the protruding position protruding outward. In addition, the web W can be cut by a length approximating the path length corresponding to the distance between the cutting blades 52, 52' and the pressing drums 63, 63' in the protruding position.
Since the pull-back mechanism 3 is provided to pull back the web W in the direction opposite to the traveling direction, the leading part of the web W can be reliably positioned at the tips of the pressing drums 63, 63' of the holding and guiding mechanism 6, and the Can be closely attached.

Since the cutting blades 52, 52' cut the web W at a speed matched with the conveying speed of the web W, the web W can be cut easily and sharply.

Pressing drum 63' facing one side S of web W
The compressed air is ejected from the web W to the pressing surface 631 of the pressing drum 63 facing the other surface S' of the web W.
Press the leading part of the tape to make it look like it's stuck,
Since the configuration is such that the pressing drum 63 is guided to the surface of the winding core 13 along the rotation locus and pressed, the unrestrained web W after cutting can be reliably conveyed to the winding core 13. The holding and guiding operation can be performed with higher reliability, and the leading portion of the web W can be brought into close contact with the surface of the winding core 13 with certainty.

Although the embodiment capable of double-sided winding has been described above, the automatic web winding device according to the present invention may be configured only for single-sided winding. In this case, the pasting mechanism 4 may be configured only by the first pasting machine 40, and the holding and guiding mechanism 6 may be configured only by the first holding and guiding machine. Specifically, For example, in FIG. 1, the second cutter rotor 5
1', the cutting blade 52' is fixed to the frames FA, FB, so-called fixed blades, and instead of using the press drum 63, the air jet nozzle is fixed to the frames FA, FB.
and a pressing block 4 related to the pasting mechanism 4.
Instead of 4', a pedestal fixed to the frames FA and FB may be used.

In addition, in the present invention, the pull-back mechanism is not necessarily necessary, and if it is not used, for example, a hollow member having a suction port on the surface, which is a component of the holding and guiding mechanism, can be inserted into the back surface of the cutting blade. It may be provided so as to be able to protrude freely along the hollow member, and the leading part of the web may be guided to the surface of the winding core while being sucked by the hollow member.

In the present invention, the leading part of the web may be attracted to a holding member using static electricity, or may be held by a holding member and guided to the surface of a new winding core.

As described above, according to the present invention, it is possible to make the web core switching operation unmanned, and it is also possible to perform the core switching operation with high reliability while the web is being transported without stopping the device. To provide an automatic winding device that can be used suitably for winding photographic film, etc., where the quality of the winding material near the winding core is important, without the risk of the web tip being bent or wrinkled. Further, it is possible to provide an automatic winding device with a simple structure, low equipment cost, and capable of winding on both sides.

[Brief explanation of drawings]

FIG. 1 is a front view showing an outline of an embodiment of the present invention, FIG. 2 is a plan view showing a part of the cutting mechanism and holding guide mechanism shown in FIG. 1, and FIG. A front view showing a part of the cutting mechanism and a part of the holding guide mechanism, and FIGS. 4 to 6 are operation explanatory diagrams showing the operations of the cutting mechanism and the holding guide mechanism, respectively. 1... Turret type winding machine, 12, 13... Winding core, 2... Guide feeding mechanism, 24... Guide roller,
25... Lead-in roller, 3... Pull-back mechanism,
4...Double-sided adhesive tape piece pasting mechanism, 43, 43'
...Double-sided adhesive tape piece, 44, 44'... Pressing block, 45, 45'... Interleaf paper, 5... Cutting mechanism,
51,51'... cutter rotor, 52,5
2'... Cutting blade, 6... Holding guide mechanism, 62, 6
2'... Support arm, 63, 63'... Pressing drum, 631, 631'... Pressing surface, 67... Air outlet, P... Web conveyance path, W... Web.

Claims (1)

[Scope of Claims] 1. A double-sided adhesive tape sticking mechanism for sticking a double-sided adhesive tape piece to a double-sided adhesive tape piece sticking area on the surface of the web being conveyed; a cutting mechanism that cuts the web using the cutting mechanism, and a holding and guiding mechanism that holds and guides the leading part of the subsequent web cut by the cutting mechanism using a holding member, and adheres the double-sided adhesive tape piece on the web to the surface of a new core. An automatic web winding device comprising: 2 The cutting mechanism has a cutting blade that cuts the web and is located downstream of the holding member in the web conveyance path, and the cutting mechanism cuts the web so that the leading part of the subsequent web is located on the holding member. The automatic web winding device according to claim 1, further comprising a pull-back mechanism for pulling back the web. 3. The double-sided adhesive tape sticking mechanism includes a first double-sided adhesive tape sticking machine that sticks a double-sided adhesive tape piece on one side of the web and a first double-sided adhesive tape piece sticking machine that sticks a double-sided adhesive tape piece on the other side of the web, which are alternatively driven. The holding and guiding mechanism includes a first holding and guiding machine that adheres the double-sided adhesive tape piece pasted on one side of the web to the surface of the core; 3. The automatic web winding device according to claim 1, which comprises a second holding and guiding device that adheres the double-sided adhesive tape piece affixed to the surface of the core to the surface of the core.