JP2001247237A - Web winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a web winder that can tightIy wind up even an elongation- prone web such as an embossed one. SOLUTION: The web winder comprises a first winding roller 10A for rotating a paper core C in winding motion while feeding it with a web W, a second winding roller 20 for rotating the winding paper core C while supporting it, and a third winding roller 30 for restraining the winding paper core C, and feeds the paper core C into a winding space and winds the web W on the paper core C. The web winder is provided with a paster 40 for applying a band of adhesive ad to the periphery of the paper core C along the length thereof, a core inserter 50 for inserting the paper core C in the winding space from between the first and second winding rollers 10A and 20, a vacuum device 60A formed for web suction in circumferential part of the first winding roller 10A, and an acceleration/deceleration controller for accelerating and decelerating the independent rotating speeds of the second and third winding rollers 20 and 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a web winding machine. More specifically, the present invention relates to a web winding machine for winding a web that becomes toilet paper or kitchen paper to manufacture a toilet roll or kitchen roll. Web winding methods include a method using a paper tube and a method not using a paper tube. The paper tube is a cylindrical core made of cardboard.The most common type of toilet roll is a paper tube wound with paper.The paper tube is wound around a metal spool without using a paper tube. After the completion of the winding, the core is removed to form a coreless toilet roll. The present invention relates to a web winding machine (referred to as a thin strip of paper or nonwoven fabric) for manufacturing roll products such as toilet rolls and kitchen rolls using the former paper tube.

[0002]

2. Description of the Related Art As a conventional example of a web winding machine using a paper tube, Japanese Patent Laid-Open Publication No. Sho 56-52345, Japanese Patent Publication No. Hei 6-990 is disclosed.
No. 61, Japanese Patent Application Laid-Open No. Hei 7-117903, and Patent No. 2
There are techniques described in, for example, Japanese Patent No. 925598 and Japanese Patent No. 2648908. Each of these prior arts is shown in FIG.
As shown in FIG. 2 (A), three winding rolls 101, 102, 10
Place the paper core C in the winding space surrounded by 3 and take up three winding rolls.
Basically, the web W is wound around the paper core C by rotating the paper core C at 101, 102 and 103. And FIG.
As shown in (B), the web W
A glue ad for bonding the starting end of the sheet to the paper tube C is applied. This glue ad is applied in a circumferential shape on the peripheral surface of the paper tube C, and a large number thereof are applied in the axial direction. 114mm long
In the case of the toilet roll, the number of the glue ad is a ratio of 1 to 2;
The glue ad of the book is applied. Glue ad as above
Is placed in a winding space, and the web W is supplied along the winding roll 101, the web W is wound around the outer circumference of the paper tube C. What is taken is called log L. However, while the paper tube C is being inserted into the winding space from between the winding rolls 101 and 102, the web W has not yet been wound on the paper tube C. For this reason, if the winding roll 102 is a roll having a flat surface, the glue ad just applied to the paper tube C is transferred to the roll surface,
The glue is transferred to the surface of the web W wound around the paper tube C again, so that the log L after winding the web W becomes an unusable log in which the paper cannot be peeled. Therefore, on the roll surface of the take-up roll 102, the same number of grooves 104 are formed circumferentially to avoid the glue ad applied to the paper tube C. Since the web W is always present on the surface of the winding roll 101, there is no need to provide a circumferential groove.
The winding roll 103 also operates to hold down the web W after the web W is wound around the paper tube C, so that it is not necessary to provide a circumferential groove. With the above configuration, the web W can be wound around the paper tube C without any problem in the related art.

[0003]

Incidentally, roll products such as toilet rolls and kitchen rolls include hard rolls and soft rolls. The hard-wound roll is obtained by hardly winding the web W around the paper tube C and increasing the length of the web within the same roll diameter. The soft-wound roll loosely winds the web W around the paper tube C. Although the length of the web is shortened, the feeling of touch is softened. In the above-mentioned conventional web take-up machine, the production of a soft-wound roll has no problem. However, the production of a hard-wound roll has the following problems. That is, (a) hard winding is relatively easy for a web that has not been embossed and does not easily elongate. (b) Hard-rolling is not possible for webs that have been embossed and are easily stretched. because,
There are a number of circumferential grooves on the surface of the take-up roll 102, and even if the rider is holding down the roll that is being taken up, it will not be able to be pressed down sufficiently and the tension will be insufficient. This is because if the pressing force is reduced so as not to cause wrinkles, soft winding is only possible due to insufficient tension.

[0004] In view of the above circumstances, an object of the present invention is to provide a web winding machine which can hardly wind even a web which is liable to elongate as if embossed.

[0005]

According to a first aspect of the present invention, there is provided a web take-up machine, comprising: a first take-up roll for rotating a paper tube being wound while supplying a web; A second take-up roll to be rotated; and a third take-up roll for suppressing a paper tube being taken up. The take-up roll surrounded by the first take-up roll, the second take-up roll, and the third take-up roll. A web winding machine that supplies a paper tube to a space and winds the web around the paper tube, and a gluing device that applies a band-shaped glue to the outer surface of the paper tube along a surface length direction; A core insertion device for inserting the paper core into the winding space from between the first winding roll and the second winding roll, and a web suction device formed on a part of the first winding roll in a circumferential direction. And the rotation speed of the second take-up roll is controlled independently of the speed of the first take-up roll by accelerating and decelerating the third take-up roll. The rotational speed of Lumpur, characterized by comprising a deceleration control apparatus for acceleration or deceleration controlled independently of the first winding roll and the second winding roll. Claim 2
The web winding machine according to the first aspect of the present invention, wherein the gluing device performs a gluing operation on a paper tube supplied to a support portion of the core insertion device at a standby position. A posture-changeable posture between a preparation position where the operation is not performed, and a cylindrical glue tank having substantially the same length and arranged in parallel with the paper tube at the standby position, and a glue tank provided outside the glue tank. And a glue application unit for receiving a supply of the glue inside and applying a band-shaped glue on the outer surface of the paper tube in the surface length direction. According to a third aspect of the present invention, in the web winder according to the first aspect, a suction hole is formed on an entire surface of the first winding roll, and the vacuum device includes:
Along the outer surface of the first take-up roll, a web fed with the rotation of the first take-up roll is fixed inside the first take-up roll so as to be adsorbed at an entrance portion of the take-up space. And a suction means connected to the suction duct. According to a fourth aspect of the present invention, in the web winding machine according to the third aspect, the vacuum device includes an air supply duct disposed forward of the suction duct of the first winding roll in a rotation direction; Air supply means connected to the air duct. According to a fifth aspect of the present invention, in the web winding machine according to the first aspect, a suction slot is formed in a surface length direction of a roll surface of the first winding roll, and the vacuum device is provided with the suction slot. And a suction means connected to the suction duct. According to a sixth aspect of the present invention, in the web winding machine according to the first aspect, the core insertion device includes an arm having a paper tube supporting portion at a distal end, and the arm having a standby position and the paper tube being the first winding device. A swinging means for swinging between an insertion preparation position contacting the take-up roll, and a paper tube rotated by contacting the first take-up roll after moving the arm from the standby position to the insertion preparation position. And an insertion guide rail that is supported, rolled, and inserted into the winding space. According to a seventh aspect of the present invention, in the invention according to the first aspect, a perforation roll unit for forming a perforation in the web is disposed in a web supply path leading to the first winding roll. It is characterized by. In a web winding machine according to an eighth aspect of the present invention, in the invention according to the sixth aspect, the gluing device is provided vertically up and down below the insertion preparation position of the insertion guide rail, and is supplied to the insertion preparation position. Placed parallel to the paper tube,
A cylindrical glue tank having substantially the same length, and a glue applying unit provided at an upper portion of the glue tank for receiving the glue in the glue tank and applying a band-like glue on the outer surface of the paper tube in the surface length direction. And, when ascending, with respect to the paper tube supplied to the insertion preparation position,
The paper gluing device, which is glued by the glue applying unit and does not perform the gluing operation when descending, is provided vertically up and down below the insertion preparation position of the insertion guide rail, and is supplied to the insertion preparation position. A cylindrical glue tank of approximately the same length, which is arranged in parallel with the glue tank, is provided at the upper part of the glue tank, receives the glue in the glue tank, and has a belt-like shape in the surface length direction on the outer surface of the paper tube. A glue application unit for applying glue, wherein the glue is applied by the glue application unit to the paper tube supplied to the insertion preparation position when ascending, and the gluing operation is not performed when descending.

According to the first aspect of the present invention, when a glue is applied to the paper tube in a band shape in the surface length direction by the gluing device, and the paper tube is inserted into the winding space by the core insertion device, the second shape is obtained. When the rotation of the take-up roll is reduced and the rotation of the third take-up roll is decelerated, the preceding web hangs downward from the portion of the first take-up roll that is being sucked by the vacuum device. When the paper tube is inserted into the winding space in this state, the glue on the surface of the paper tube becomes the second.
Only the web comes into contact without contacting the roll surface of the take-up roll, and the web starts to wind around the paper tube. Then third
When the rotation of the take-up roll is increased, the web is cut between the log that has already been wound and the new paper tube around which the web is slightly wound, so that the paper tube can continue winding the web. As described above, since the glue on the surface of the paper core does not adhere to the second winding roll, the second winding roll may be basically a flat roll, and the winding by the second winding roll and the third winding roll. You can strongly pinch the log inside, and even in that case, you can not wrinkle. Therefore, even if the web is embossed or the like and the web itself is easily stretched, the web can be hard-wound. According to the invention of claim 2, the gluing device is
It has a glue application section that can apply band-like glue in the surface length direction, so it can be applied in a belt shape on the outer surface of the paper tube, and the posture can be changed between the work position to be glued and the preparation position, so that the gluing work While ensuring that the supply of the core to the core insertion device is not hindered. According to the third aspect of the present invention, the vacuum device adsorbs the web to the first winding roll at the entrance portion of the winding space and causes the web at the preceding portion to hang down therefrom. In this case, the web is bonded to the paper core with a band-shaped glue so that the glue on the paper core is not transferred to the second winding roll. According to the invention of claim 4, since the pressure air is blown out from the air supply duct to the web before the portion where the web is adsorbed on the first winding roll and is forced to hang downward, the second winding roll is Before transferring the paste on the paper tube, the web can be securely adhered to the band-like paste on the paper tube. According to the fifth aspect of the present invention, the function of adsorbing the web on the first winding roll is the same as that of the third aspect of the invention. Simple structure and low cost. According to the sixth aspect of the present invention, when the arm is swung while the paper tube is stably supported by the paper tube supporting portion, the paper tube can be moved to the insertion preparation position, and the insertion guide rail can be moved from there. In this case, the paper tube rotating in contact with the first winding roll rolls on the insertion guide rail to enter the winding space, and the web is wound therebetween. As described above, according to the core insertion device of the present invention, the paper tube can be reliably inserted into the winding space only by swinging the arm and by the movement of the existing first winding roll. Can be wound around the web. According to the invention of claim 7, perforations are formed in the web by the perforation roll unit before the web enters the winding space, so that the web is wound around the roll and the paper tube that have been wound in the winding space. When tension is applied between the web and the web, the web breaks at the perforation, the web is easily cut, and the cut edge is finished finely. According to the eighth aspect of the present invention, the gluing device can be raised to move the glue application section to the insertion preparation position. Glue can be applied in a belt shape along the surface length direction. For this reason, it is not necessary to hold the paper tube so as not to rotate, so that the paper tube can be conveyed quickly. Moreover, since the glue applied to the paper tube immediately adheres to the web, it is possible to prevent the glue on the paper tube from attaching to portions other than the web.

[0007]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view of the web winder of the first embodiment. As shown in the figure, the web winding machine of the first embodiment includes a first winding roll 10, a second winding roll 20, a third winding roll 30, a gluing device 40, a core inserting device 50, a vacuum The apparatus comprises a device 60A and a perforation roll unit 70. Symbols 2 and 3
Indicates a feed roll. The web W sent through the feed rolls 2 and 3 is processed by the perforation roll unit 70 and is surrounded by the first winding roll 10, the second winding roll 20, and the third winding roll 30. The winding space is wound around the paper tube C.

First, the first winding roll 10 will be described. The first winding roll 10 is provided so as to be rotatable around a horizontal rotation axis in a state where the cylindrical roll 11 is tilted. A large number of suction holes 11h are formed on the entire roll surface of the roll 11, the reason of which will be described later.

Next, the perforated roll unit 70
Will be described. A pair of right and left perforation rolls 71A, 71B are rotatably provided at positions sandwiching the web W in a supply path of the web W from the feed rolls 2, 3 to the first winding roll 10. . A plurality of perforation forming blades 72 (four in the figure) extending in the width direction are attached to the roll peripheral surface of one perforation roll 71A at an equal angle. A perforation forming blade 73 extending in the width direction is provided on the roll peripheral surface of the other perforation roll 71B.
(One in the figure) is attached. According to the perforation roll unit 70, a pair of left and right perforation rolls 71A and 71B are rotated, and the perforation forming blade 72 and the perforation forming blade 73 overlap each other to form a perforation on the web W. Can be done. The number of the perforation forming blades 72 in the perforation roll 71A and the number of the perforation forming blades 7 in the perforation roll 71B.
Any number of 3 may be used, and the number of rotations of each perforation roll 71A, 71B may be adjusted. Furthermore,
The perforation roll unit 70 may not be necessarily provided, but if the perforation roll unit 70 is provided, as will be described later, the final end of the web W wound around the paper tube C is positioned at the perforation. This is suitable because it can be cut cleanly along.

Next, the second winding roll 20 will be described.
A second take-up roll 20 is rotatably provided diagonally below the first take-up roll 10. The second take-up roll 20 is disposed at an interval wider than the diameter of the paper core C so that the paper core C passes between the second take-up roll 20 and the first take-up roll 10. The second winding roll 20 can rotate the paper tube C while supporting the paper tube C being wound. The rotation speed of the second winding roll 20 is controlled independently of the first winding roll 10 by an acceleration / deceleration control device (not shown).

Next, the third winding roll 30 will be described.
A third take-up roll 30 is rotatably provided on the side of the first take-up roll 10 and above the second take-up roll 20. The third take-up roll 30 is provided so as to be able to approach and separate from the first take-up roll 10 and the second take-up roll 20 by moving means (not shown), for example, a cam. By the third winding roll 30, the paper core C being wound
Can be suppressed. The rotation speed of the third take-up roll 30 is controlled independently of the first take-up roll 10 and the second take-up roll 20 by an acceleration / deceleration control device (not shown).

A space surrounded by the first winding roll 10, the second winding roll 20, and the third winding roll 30 is a winding space for winding the web W around the paper tube C.
In this winding space, the web W is moved by the first winding roll 10.
While the paper core C being wound is rotated while the paper core C is being supplied, the paper core C is held down by the third winding roll 30 while the paper core C is supported by the second winding roll 20, and the web W
Can be wound up.

Next, the core insertion device 50 will be described. FIG. 4 is a diagram illustrating the operation of the web winder according to the present embodiment in operation. 1 and 4, reference numeral 51 indicates an insertion guide rail. This insertion guide rail 51
Is a rail for guiding the paper tubes C sequentially provided by a paper tube supply device (not shown). The insertion guide rail 51 has four continuous parts, that is, a descending part 51a.
, A standby section 51b, a rising section 51c, and an insertion preparation section 51d. The descending portion 51a is inclined forward and obliquely downward so that the paper tube C rolls. A concave standby portion 51b is formed to be continuous with the descending portion 51a. The paper core C rolled on the descending part 51a can be kept on standby by the standby part 51b. Continuing to the standby section 51b,
A rising portion 51c that is inclined forward and obliquely upward is formed.
Continuing from the rising portion 51c, a smooth concave and arc-shaped insertion preparation portion 51d is formed. This insertion preparation unit 51d
Constitute the insertion preparation position referred to in the claims. The leading end of the insertion preparation section 51d extends to the winding space.

The standby section 51 of the insertion guide rail 51
An arm 52 is provided in the vicinity of b so as to be vertically swingable. At the tip of the arm 52, a fork-shaped paper tube supporting portion 52f is formed to support the paper tube C. Although not shown, the base end of the arm 52 is pivotally connected with a pin or the like.
Although not shown, a swinging means such as a cam is provided on the frame, and the swinging means moves the paper tube supporting portion 52f of the arm 52 to the standby portion 51b and the insertion preparation portion 51d which is the insertion preparation position. Can be rocked between.

Next, the gluing device 40 will be described. Below the standby portion 51b of the insertion guide rail 51, a cylindrical glue tank 41 is provided so as to be swingable back and forth around a horizontal axis in a direction in which the cylinder is turned down. This glue tank 41
This is a tank for storing the glue ad, and is a cylindrical tank having substantially the same length as the paper tube C, and is arranged in parallel with the paper tube C waiting in the standby section 51b. On the peripheral surface of the glue tank 41, an elongated notch is formed along the axial direction. As the glue ad stored in the glue tank 41, for example, a water-soluble polymer or a modified starch whose main component is suitable is used.

Outside the cutout of the glue tank 41, a glue application section 42 is attached along the cutout. The glue application section 42 is provided with an impregnating material such as sponge or felt. At the base of the impregnating material of the second winding roll 20, the glue ad stored in the glue tank 41 can be supplied.

By swinging the glue tank 41 back and forth, the posture is set between a standby portion 51b, which is a working position for gluing the glue applying portion 42 to the paper tube C, and a preparation position for not performing the gluing operation. Can be changed. In the working position, the glue ad can be applied along the surface length direction to the outer peripheral surface of the paper tube C waiting at the standby unit 51b by the tip end of the adhesive application unit 42, as shown in FIG. . In addition, the glue application section 4 is made to correspond to the width of the rail of the insertion guide rail 51.
It is preferable to arrange a plurality of (for example, three) impregnating materials in series with a gap at the end of 2, since it is possible to prevent the adhesive ad from adhering to the rail.

Next, the vacuum device 60A will be described.
As shown in FIG. 1, a vacuum device 60A is provided inside the first winding roll 10. The vacuum device 60A includes a suction duct 61 and a suction pump (not shown). The suction duct 61 is fixedly provided inside the roll 11 of the first winding roll 10. The suction duct 61 has an elongated opening formed in the lower part of the upper cylindrical portion along the width direction thereof, and a duct having an eight-shape in cross section extending outside the opening. The duct of the suction duct 61 is brought close to the lower inner peripheral surface of the roll 11, and the insertion guide rail 5
The web W is arranged so as to adsorb the web W at the entrance of the winding space toward the first insertion preparation section 51d.

A suction pump (not shown) includes a suction duct 61
Is connected to the upper cylindrical part. For this reason, when the inside of the suction duct 61 is set to a negative pressure by the suction pump, a negative pressure can be generated in the suction hole 11h located in the duct of the suction duct 61 among the plurality of suction holes 11h of the roll 11. Therefore, the web W can be sucked into the suction hole 11h.

Next, the operation and effects of the web winder according to the first embodiment will be described. 2 to 5 are explanatory diagrams of the operation of the web winder according to the first embodiment. As shown in FIGS. 1 and 2, the web W sent through the feed rolls 2 and 3 is moved by a vacuum device 60 </ b> A at the entrance of the winding space at the entrance surface of the first winding roll 10. Is adsorbed.

In the winding space surrounded by the first winding roll 10, the second winding roll 20, and the third winding roll 30, the paper tube C is rotated by these, and the peripheral surface of the paper tube C is rotated. The web W is wound up, and a log L is formed.

As shown in FIG. 2, while the log L is formed in the winding space, the next paper tube C is inserted into the insertion guide rail 51.
In the standby unit 51b. Therefore, the glue tank 41 of the gluing device 40 is swung to change the posture of the glue applying section 42 to the standby section 51b which is the working position. Then, the glue ad can be applied to the paper tube C by the tip of the glue application unit 42. That is, as shown in FIG. 6, the glue device 40 can apply the glue ad to the outer surface of the paper tube C in a belt shape along the surface length direction.

Thereafter, as shown in FIG. 3, the gluing device 40 changes its posture to a preparation position where the gluing operation is not performed.
The gluing device 40 can change the posture between the standby portion 51b for gluing and the preparation position, so that the feeding of the paper tube C to the core insertion device 50 can be prevented while reliably performing the gluing operation.

When the web W having a predetermined length is wound on the log L, the perforated roll unit 70 shown in FIG.
Thereby, a perforation is formed on the web W.

Next, the rotation speed of the second winding roll 20 is reduced by the acceleration / deceleration control device with respect to the rotation speed of the first winding roll 10 so that the first winding roll 10 and the second winding roll 20 are connected to each other. Independently reduce the rotation of the third winding roll 30. Then, the preceding web W hangs downward from the portion that is sucked by the vacuum device 60 </ b> A with respect to the first winding roll 10, and comes into contact with the surface of the second winding roll 20.

When the arm 52 is swung upward while the paper tube C is stably supported by the paper tube support portion 52f, the paper tube C is ready for insertion, that is, the insertion preparation portion 51d of the insertion guide rail 51. And the first take-up roll 10. Then, since the paper tube C is in contact with the first winding roll 10, the paper tube C is in contact with the first winding roll 10.
, And is advanced toward the winding space while rolling between the first winding roll 10 and the insertion preparation section 51d of the insertion guide rail 51.

As described above, only by swinging the arm 52, the movement of the existing first take-up roll 10 is performed.
The paper tube C can be reliably inserted into the winding space, and the web W can be wound around the paper tube C during the insertion. That is, the paper core C glued by the gluing device 40 by the core insertion device 50 is moved from its standby position through the gap between the first winding roll 10 and the second winding roll 20, It can be inserted into the winding space.

As shown in FIGS. 3 and 4, when the paper tube C starts rolling between the first take-up roll 10 and the insertion guide rail 51, immediately after that, the glue ad of the paper tube C becomes the web W. It is stuck on. For this reason, the web W is wound around more than half the circumference of the paper tube C before the paper tube C is sent to the surface of the second winding roll 20. Therefore, the glue ad of the paper tube C does not come into contact with the roll surface of the second take-up roll 20 but only contacts the web W, and the web W starts to wind around the paper tube C.

As described above, since the glue ad on the surface of the paper tube C does not adhere to the second winding roll 20, the second winding roll 2
0 is basically a flat roll, and the second winding roll 2
The pinching of the log L during winding by the 0 and the third winding roll 30 can be strengthened, and even in that case, no wrinkles can be formed.
Therefore, even if the web W is embossed or the like and the web itself is easily stretched, the web W can be hard-wound.

Next, the rotation of the third take-up roll 30 is increased by the acceleration / deceleration control device independently of the first take-up roll 10 and the second take-up roll 20. Then, tension is generated between the log L that has already been wound up and the web W slightly wound around the next paper core C, and the web W is cut. In addition, since the perforations are formed in the web W in this portion by the perforation roll unit 70, the web W is cut cleanly along the perforations.
That is, before the web W enters the winding space by the perforation roll unit 70, the perforations are formed in the web W, so that the web L that has been wound around the log L and the paper tube C that have been wound up in the winding space. When tension is applied between the web W and the web W, the web W is cut off from the perforation, the web W can be easily cut, and the cut edge is also finely finished.

After the web W is cut, the third winding roll 30 is moved to the second winding roll 20 by the acceleration / deceleration control device.
When accelerating faster, the log L is discharged.

As shown in FIG. 5, a new paper tube C moves from between the first winding roll 10 and the second winding roll 20 to the winding space. Then, the third take-up roll 30 returns to the original position by the moving means (not shown). First take-up roll 10, second take-up roll 20, and third take-up roll 30
As a result, the web W is wound on the peripheral surface of the paper tube C.

The above steps are repeated, so that the web W can be continuously wound around the paper tube C to form the log L.

As described above, according to the web winding machine of the first embodiment, there is an effect that a hard winding is possible even with the web W which is easily stretched as in the case of embossing.

Next, a web winding machine according to a second embodiment will be described. FIG. 7 is a side view of the web winder according to the second embodiment. As shown in the figure, the web winding machine of the second embodiment includes a first winding roll 10, a second winding roll 20, a third winding roll 30, a gluing device 40, a core inserting device 50, a vacuum The apparatus comprises a device 60B and a perforated roll unit 70 (not shown). That is, the web winder of the second embodiment has a configuration in which only the vacuum device 60A among the components of the web winder of the first embodiment is replaced with the vacuum device 60B.

The vacuum device 60B will now be described.
In the vacuum device 60B, an air supply duct 63 is disposed in the rotation direction forward of the suction duct 61 of the first winding roll 10. As an air supply means to the air supply duct 63,
An air supply pump (not shown) is connected.

Therefore, according to the web winding machine of the second embodiment, the air is blown from the air supply duct 63 to the web W ahead of the portion where the web W is adsorbed on the first winding roll 10 to be forced downward. Since the adhesive W on the paper tube C is transferred to the second take-up roll 20, the web W can be securely adhered to the band-shaped adhesive ad on the paper core C before the transfer. .

Next, a web winding machine according to a third embodiment will be described. FIG. 8 is a side view of the web winder according to the third embodiment. As shown in the figure, the web winding machine of the third embodiment includes a first winding roll 10C, a second winding roll 20, a third winding roll 30, a gluing device 40, a core inserting device 50, a vacuum It comprises a device 60C and a perforated roll unit 70 (not shown). That is, the web winding machine of the third embodiment uses only the first winding roll 10 and the vacuum device 60A among the components of the web winding machine of the first embodiment, and the first winding roll 10C and the vacuum device, respectively. Replaced with 60C.

Therefore, the first winding roll 10C and the vacuum device 60C will be described. The first take-up roll 10C has a long suction hole 12 formed in the roll surface of the roll 11C.

A suction duct 61C is provided inside the roll 11C. The suction duct 61C is provided with the suction slot 1
It communicates with 2. The suction duct 61C is connected to a suction pump (not shown).

Next, the operation and effect of the web winder according to the third embodiment will be described. FIG. 9 is an explanatory diagram of the operation of the web winder according to the third embodiment. FIG. 10 is an operation explanatory view of the web winder of the third embodiment, following FIG. 9. As shown in FIGS. 9 to 10, when the inside of the roll 11C is made to have a negative pressure by the vacuum device 60C, the web W can be adsorbed on the peripheral surface of the roll 11C. Therefore, the paper tube C being wound can be rotated while the web W is supplied by the first winding roll 10C.

According to the web winding machine of the third embodiment, the function of adsorbing the web W on the first winding roll 10C is the first function.
The same as the web winder of the embodiment, except that the suction slot 12
Is sufficient, the structure is simpler and the cost is lower than the structure in which a large number of suction holes 11h are provided in the roll 11.

Next, a web winding machine according to a fourth embodiment will be described. FIG. 11 is a side view of the web winder according to the fourth embodiment. As shown in the figure, the web take-up machine of the fourth embodiment includes a first take-up roll 10, a second take-up roll 20,
It comprises a winding roll 30, a gluing device 40D, a core inserting device 50, a vacuum device 60A, and a perforated roll unit 70 (not shown). That is, the fourth
The web winding machine of the embodiment is obtained by replacing only the sizing device 40 of the components of the web winding machine of the first embodiment with a sizing device 40D.

The gluing device 40D will now be described. The gluing device 40D, like the gluing device 40, includes a glue tank 41 and a glue application unit 42. This gluing device 40D
Unlike the gluing device 40, the glue application unit 42 is disposed below the insertion preparation unit 51d of the insertion guide rail 51 so that the glue application unit 42 faces the upper portion of the glue tank 41, and is provided so as to be able to move up and down. I have. When the gluing device 40D rises, the upper end of the glue application unit 42 moves so as to project slightly above the upper surface of the insertion preparation unit 51d, and when the gluing device 40D descends, the glue application unit 42 moves to the insertion preparation unit 51d. Is moved below the upper surface of the.

Next, the operation and effect of the web winder according to the fourth embodiment will be described. When the paper tube C is sent to the insertion preparation section 51d of the insertion guide rail 51, the gluing device 40D is raised. Then, the upper end of the glue application section 42 of the gluing device 40D protrudes slightly upward from the upper surface of the insertion preparation section 51d. For this reason, the glue a is formed on the outer surface of the paper tube C, which moves while rolling on the insertion preparation unit 51d, in a band shape along the surface length direction.
d can be applied. Moreover, the glue ad applied to the paper tube C immediately adheres to the web W, and the web W is wound around a half circumference or more of the paper tube C before the paper tube C is sent to the surface of the second winding roll 20. .

Therefore, according to the web winding machine of the fourth embodiment, the adhesive ad of the paper tube C is brought into contact only with the web W,
This has the effect of preventing adhesion to portions other than the web W such as the roll surface of the take-up roll 20. Further, it is not necessary to hold the paper tube C so that the paper tube C does not rotate while the paper tube C is fed by the arm 52 from the standby portion 51b of the insertion guide rail 51 to the insertion preparation portion 51d. Therefore, the transfer speed of the arm 52 can be increased, and there is no need to provide the paper tube support 52f at the tip of the arm 52.

[0047]

According to the web winding machine of the present invention, a glue is applied to the paper tube in a belt-like shape in the surface length direction by the gluing device, and the paper tube is inserted into the winding space by the core insertion device. When
When the rotation of the second take-up roll is reduced and the rotation of the third take-up roll is reduced, the preceding web hangs downward from the portion of the first take-up roll that is being sucked by the vacuum device.
In this state, when the paper tube is inserted into the winding space, the glue on the surface of the paper tube contacts only the web without contacting the roll surface of the second winding roll, and the web starts to wind around the paper tube. Then, when the rotation of the third take-up roll is accelerated, the web is cut between the log that has already been wound and the new paper core around which the web is slightly wound, so that the paper core continues to wind the web. it can. As described above, since the glue on the surface of the paper core does not adhere to the second winding roll, the second winding roll may be basically a flat roll, and the winding by the second winding roll and the third winding roll. You can strongly pinch the log inside, and even in that case, you can not wrinkle. Therefore, even if the web is embossed or the like and the web itself is easily stretched, the web can be hard-wound. According to the web winding machine of the second aspect, since the gluing device has the glue applying portion capable of applying the band-like glue in the surface length direction, the gluing device can apply the belt-like glue to the outer surface of the paper tube. Since the posture can be changed between the working position to be prepared and the preparation position, the supply of the core to the core inserting device can be prevented while reliably performing the gluing operation. According to the web winding machine of the third aspect, the vacuum device adsorbs the web to the first winding roll at the entrance of the winding space and causes the web of the preceding portion to hang down therefrom. The web can be adhered to the paper tube with the upper band-shaped glue in contact with the paper tube to enter, so that the glue on the paper tube is not transferred to the second winding roll. According to the web winding machine of the fourth aspect, the pressure air is blown out from the air supply duct to the web ahead of the portion where the web has been adsorbed on the first winding roll, and is forced to hang downward. Before transferring the glue on the paper tube to the take-up roll, the web can be securely adhered to the band-like glue on the paper tube. According to the web winding machine of the fifth aspect, the function of adsorbing the web to the first winding roll is the same as that of the invention of the third aspect, but the length of the suction slot is one.
Since the number of suction holes is sufficient, the structure is simpler and lower in cost than the structure in which a number of suction holes are provided. According to the web winding machine of claim 6, when the arm is swung in a state where the paper tube is stably supported by the paper tube supporting portion, the paper tube can be moved to the insertion preparation position, and from there, If supported by the insertion guide rail, the paper tube rotating in contact with the first winding roll rolls on the insertion guide rail to enter the winding space, and the web is wound therebetween. As described above, according to the core insertion device of the present invention, the paper tube can be reliably inserted into the winding space only by swinging the arm and by the movement of the existing first winding roll. Can be wound around the web. According to the web winding machine of claim 7, since the perforations are formed in the web by the perforation roll unit before the web enters the winding space, the roll and the paper tube that have been completely wound in the winding space. When tension is applied between the web and the web that has begun to be wound, the web is cut from the perforation, the web is easily cut, and the cut edge is finished finely. According to the web winding machine of the eighth aspect, since the gluing device can be raised to move the glue application section to the insertion preparation position, the outside of the paper tube moving while rolling on the insertion guide rail can be moved. Glue can be applied to the surface in a band shape along the surface length direction. For this reason, it is not necessary to hold the paper tube so as not to rotate, so that the paper tube can be conveyed quickly.
In addition, since the glue applied to the paper tube immediately adheres to the web, it is possible to prevent the glue on the paper tube from attaching to portions other than the web.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a web winder according to a first embodiment.

FIG. 2 is an explanatory diagram of an operation of the web winder according to the first embodiment.

FIG. 3 is an explanatory view of the operation of the web winder of the first embodiment following FIG. 2;

FIG. 4 is an operation explanatory view of the web winder of the first embodiment, following FIG. 3;

FIG. 5 is an operation explanatory view of the web winder of the first embodiment, following FIG. 4;

FIG. 6 is a perspective view of a paper tube C on which a glue ad is applied.

FIG. 7 is a side view of a web winder according to a second embodiment.

FIG. 8 is a side view of a web winder according to a third embodiment.

FIG. 9 is an operation explanatory view of the web winder according to the third embodiment.

FIG. 10 is an explanatory view of the operation of the web winder according to the third embodiment, following FIG. 9;

FIG. 11 is a side view of a web winder according to a fourth embodiment.

FIG. 12 is an explanatory view of a conventional web take-up machine.

[Explanation of symbols]

 Reference Signs List 10 First winding roll 11 Roll 11h Suction hole 12 Long suction hole 20 Second winding roll 30 Third winding roll 40 Gluing device 40D Gluing device 41 Glue tank 42 Glue coating unit 50 Core insertion device 51 Insertion guide rail 51b Standby unit 51d Insertion preparation unit 52 Arm 60 Vacuum device 60B Vacuum device 60C Vacuum device 61 Suction duct 70 Perforated roll unit ad Glue C Paper tube L Log W Web

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kunitomi Kamei 1514 Kawanoe-cho, Kawanoe-shi, Ehime Prefecture Kawanoe Zoki Co., Ltd. F-term (reference)

Claims (8)

[Claims] A first take-up roll for rotating a paper tube being wound while supplying a web;
A second take-up roll to be rotated; and a third take-up roll for suppressing a paper tube being taken up. The take-up roll surrounded by the first take-up roll, the second take-up roll, and the third take-up roll. A web winding machine that supplies a paper tube to a space and winds the web around the paper tube, and a gluing device that applies a band-shaped glue to the outer surface of the paper tube along a surface length direction; A core insertion device for inserting the paper core into the winding space from between the first winding roll and the second winding roll, and a web suction device formed on a part of the first winding roll in a circumferential direction. And the rotation speed of the second winding roll is controlled independently of acceleration and deceleration of the first winding roll, and the rotation speed of the third winding roll is controlled by the first winding roll and the second winding roll. A web winding machine comprising: an acceleration / deceleration control device that performs acceleration / deceleration control independently of a take-up roll. 2. The posture changing device according to claim 1, wherein the gluing device changes a posture between a work position for gluing a paper tube supplied to a support portion of the core inserting device at a standby position and a preparation position where no gluing operation is performed. A tubular glue tank of substantially the same length, which is arranged in parallel with the paper tube at the standby position, and is provided outside the glue tank; 2. The web winding machine according to claim 1, further comprising a glue application section for applying a band-shaped glue on the outer surface of the tube in the surface length direction. 3. A suction hole is formed on the entire surface of the first take-up roll, and the vacuum device rotates the first take-up roll along the outer surface of the first take-up roll. A suction duct fixedly arranged inside the first winding roll, and suction means connected to the suction duct so that the web sent together with the web is sucked at the entrance of the winding space. The web winding machine according to claim 1, wherein: 4. The vacuum apparatus has an air supply duct disposed forward of the suction duct of the first take-up roll in the rotational direction, and air supply means connected to the air supply duct. The web winder according to claim 3, wherein: 5. A suction slot is formed in a surface length direction of a surface of the first winding roll, and the vacuum device is connected to a suction duct communicating with the suction slot and the suction duct. The web winder according to claim 1, further comprising suction means. 6. The core insertion device according to claim 1, wherein the arm is provided with a paper tube support at the tip thereof, and the arm is swung between a standby position and an insertion preparation position where the paper tube contacts the first take-up roll. The swinging means for moving the arm and the arm are moved from the standby position to the insertion preparation position, and then supported and rolled while supporting the paper tube which is rotated while being in contact with the first winding roll, and inserted into the winding space. The web winding machine according to claim 1, comprising an insertion guide rail. 7. A web winding machine according to claim 1, wherein a perforation roll unit for forming a perforation on the web is arranged in a web supply path leading to the first winding roll. . 8. The gluing device is provided vertically below the insertion preparation position of the insertion guide rail so as to be able to move up and down, and is disposed in parallel with the paper tube supplied to the insertion preparation position. It has a cylindrical glue tank and a glue application unit provided at the upper part of the glue tank, for receiving the glue in the glue tank, and applying a band-like glue on the outer surface of the paper tube in the surface length direction. 7. The web winding machine according to claim 6, wherein the glue is applied to the paper tube fed to the insertion preparation position by the glue application unit when the paper is raised, and the gluing operation is not performed when the paper tube is lowered.