JPS62185664A - Web roller manufacturing device - Google Patents

Abstract

PURPOSE:To enable manufacturing of a web roller with excellent outside appearance, by using a hollow web winding core with air suction holes communicating with a hollow portion defined on its cylindrical circumferential surface and winding a web winding start edge around the circumferential surface of the winding core by sucking air in a hollow portion. CONSTITUTION:There is used a hollow web winding core having a cylindrical circumferential surface and having air suction holes 78 defined on the circumferential surface communicating with a hollow portion 77. There is provided a web winding unit 2 for winding the winding start edge of a web around a roller 71b of the web winding core by sucking air in the hollow portion 77 by a blower 91. Therefore, when the winding start edge of the web makes contact with the circumference of the roller 71b, it is so acted that the web is sucked instantaneously and the web is not liable to displace in an axial direction with respect to the roller 71b. As a result, the web roll is difficult to deform to a bamboo- shape, whereby a web roll of excellent appearance can be manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a web roll manufacturing apparatus for manufacturing a web roll formed by winding a web into a coreless roll.

(Prior Art) Conventionally, as shown in FIG. 10, a wet tissue sonoyu \V wound into a roll is stored in a cylindrical container Outlet X
11. Containerized roll ik wafer r h nano 11. wet tissue can be cut into predetermined lengths and taken out from a container. Sea rh<Sora Do6 λ11L).

The roll-shaped etty sonyu W shown in FIG. 10 is
A long web of I sheets, which has been subjected to cutting machine cutting Y at intervals of a predetermined length (for example, 20 to 30 cm), is cut into (II)
(The web roll is wound in a core state, and the web roll is further wetted with water and stored in a cylindrical container -JQ It is designed to be taken out from the side end Wa side, and if the inner side end 1<l, Va of the roll-shaped sewage soy sauce W is pinched with fingers and pulled out strongly, the first sewing machine 1 is removed. When the processed Y portion is pulled out from the outlet Xa, it is cut at the minced processed Y portion to obtain a wet tissue of a certain length.

By the way, the present applicant has already filed a patent application (Japanese Patent Application No. Sho GO-295592) for a web roll manufacturing apparatus for such a rolled wet tissue.

As shown in FIGS. 11 to 13, the web roll manufacturing apparatus of this prior application continuously unwinds the web Q from the raw roll P to the web unwinding device +01 with a solution < f
1 - a thread processing device 103 for unwinding the web Q from the web Q at a predetermined interval so as not to perform the sewing process using a sewing machine; and a winding start H, j, H part 1
'? an air-jet type web end winding device +02 for winding the web winding core 171 around the web winding core 171; Web winding device 101 for winding web 1N
1, and a web cutting device 1 for cutting off the web wound body S formed around the web winding core 171 from the web R.
05 and the web winding core 171 separated from the web R.
The web roll 'F supported by the web winding core 1
71 without removing the web [1-Role removal device 10
It is equipped with 6. This web roll manufacturing equipment is
The perforation device 103 sequentially perforates the web Q unwound from the original roll at predetermined intervals, and then the perforated web R is wound around the web winding core 171 of the web winding device 104. Then, when a predetermined length of web is wound around the web winding core 171, the web wound body S is cut into the web cutting device 10.
5, and then the web roll 'r separated from the web R and supported on the web winding core +71 is removed from the web winding core 171 by the web roll removing device 106. It is possible to produce web rolls continuously.

However, in the web roll manufacturing device of this already applied application, the web winding core +7 used in the web winding device +04
1 is formed into a cylindrical shape with a smooth outer periphery, so that the web winding start end when the leading end 11a (FIGS. 12 and 13) of the web Tl approaches the web winding core +71. The frictional force between the web end winding device +02 and the outer peripheral surface of the web winding core +71 is relatively small. 11
Since the web end Ra is simply wound around the outer circumferential surface of the web winding core with the air ejected from the air nozzles 124, 125. Song Z-1) 1 Na?
) Light 7, l) There were cases in which the leading end Ra of the inner nib did not immediately wrap around the outer circumferential surface of the web take-up core 171 and was wound after going a little too far. In this way, when the web is wound with the web winding start end shifted in the axial direction of the web winding core 171, the wound web roll T shifts in the width direction of the web in a bamboo-like shape, as shown in FIG. If the web winding start end approaches the outer circumference of the web winding core 171 and is not quickly wound around the outer circumference, the web R may be continuously fed. As a result, a slack portion is formed on the side of the web winding start end, which causes the problem that the web winding start end becomes wrinkled (or folded) as indicated by the symbol fla', as shown in FIG. arise. Note that if the outer periphery of the web winding core 171 is made of a material with a low frictional force such as rubber, the web winding start end will be close to the web winding core 17.
1. Does the web winding core +
After forming the web roll T around 71, when the web roll 'r is removed from the web winding core +71 by the web roll removing device 10G, the web winding start end and the outer peripheral surface of the web winding core 171 are removed. Because the frictional force between the web roll and the web roll is large, the web roll may not be pulled out properly, or it may be pulled out and the center portion of the web roll tends to shift like a bamboo shoot, as shown in FIG.

(Object of the Invention) The present invention has been made in view of the problems of the web roll manufacturing device of the applicant's previous application, and to manufacture a coreless web roll with a simple configuration and good appearance. The object of the present invention is to propose a web roll manufacturing apparatus that can obtain the following results.

(Means for Achieving the Object) A web roll manufacturing apparatus of the present invention includes a web unwinding device for unwinding a web from a raw roll, and a web unwinding device for unwinding a web from a raw roll, and a web unwinding device for unwinding a web from a raw roll. A perforation device for perforating cutting in the web width direction at predetermined intervals; and a web having a hollow, cylindrical outer circumferential surface and forming air suction holes communicating with the hollow portion in the outer circumferential surface. Using a winding core, the winding start end of the web can be wound around the outer peripheral surface of the web winding core by suctioning air in the hollow part of the web winding core with an air suction device. a web end winding device; a web winding device capable of winding a perforated web around the web winding core; A web cutting device for cutting off the web wound body formed around the web winding core from the 1111 web; The web roll removing device is configured to remove the web roll from the core.

(Function) The web roll manufacturing device of the present invention starts winding the web by sucking the air in the hollow part of the web winding core, which has air suction holes reaching into the hollow part on the outer peripheral surface, with an air suction device. Equipped with a web end winding device that can wind the end around the outer circumferential surface of the web winding core.
When the web winding start end comes into contact with the outer peripheral surface of the web winding core, the web winding start end comes to be immediately attracted to the outer peripheral surface of the web winding core. When the web winding start end is attracted to the outer peripheral surface of the web winding core in this way, the web winding start end becomes difficult to shift in the axial direction with respect to the web winding core.
Moreover, it has the effect of making it difficult for slack to form at the end of the web winding.

(Embodiment) The present invention will be described in detail with reference to FIGS. 1 to 9. FIG. 1 shows the overall configuration of a web roll manufacturing apparatus according to an embodiment of the present invention. The device includes a web unwinding device 1 for continuously unwinding a web Q from a raw fabric roll I), and a web unwinding device 1 for continuously unwinding a web Q from a raw fabric roll I), and a web unwinding device 1 for perforating the web Q unwound from a raw fabric roll P at predetermined intervals in the length direction. a perforation processing device 3 for applying the perforations, and a plurality of perforations (six in this embodiment) for winding up the perforated web R.
web winding cores 'M, 'M... for sequentially and intermittently circulating and moving each of the web winding cores 71, 71, etc. to three positions to be described later. a web end winding device 2 for winding the winding start end of the web around the outer peripheral surface of the web winding core 71; and a web winding device 2 for winding the web R around the web winding core 71. Removal device 4
And the web winding core 7! A web cutting device 5 for cutting off the web wound body S formed around the web R from the web R, and a web winding core 7 that is cut off from the web R! a web roll removal device 6 for removing the web roll T supported by the web take-up core 71 from the web take-up core 71; and circulation driving of the web unwinding device 1, perforation processing device 3, and web take-up core circulation transfer device 7. A common drive device 8 that drives a web winding device 4 and a web cutting device 5 (described later).

The above-mentioned raw roll P1 web unwinding device 11 perforation processing device 3, web winding core circulation transfer device 7, web winding device 4, web cutting device 5 and web roll removing device 6
are supported on one side of a single vertical plate 10 having a large area.

The drive device 8 has a single motor 8I and an endless chino 82 that is caused to circulate through a rotating shaft 83 that is rotated by the motor 81. The endless cheno 8
2 is a web unwinding device I on the back side of the vertical plate IO.
, are wound around the sprockets of the perforation processing device 3, web winding device 4, and web cutting device 5, and are required to run the endless chino 82 (), 3.4.5)
are set to operate at the same time.

The web unwinding device I has an endless belt 11 that is circulated by the endless chain 82, and by bringing the endless belt It into contact with the outer circumferential surface of the raw fabric roll P, the web unwinding device I The web Q can be unwound continuously.

The perforation processing device 3 is constructed by arranging a fixed roll 31 having a cutter 33 on its outer circumferential surface and a rotating roll 32 having a cutter 34 on its outer circumferential surface adjacent to each other. The web Q is passed between both rolls 31 and 32, and when the rotating roll 32 rotates and the blade 34 on the rotating roll 32 side contacts the blade 33 on the fixed roll 31 side,
Web Q has a sewing machine opening. The rotating C1-rule 32 is designed such that its outer circumferential length is the same as the interval between perforations to be formed in the web Q (for example, 20 to 30 am). This perforation process will be explained next so that the r: Noeb can be easily cut when cutting the web, and when it is made into a product, it can be separated by a certain length l;7] and taken out. This is the reason for doing so.

A web cutting device 5 for cutting the web R is provided at a position on the downstream side of the perforation processing device 3 in the web running direction and on the upstream side of the web winding device 4. This web cutting device 5 uses a mechanism to be described later to apply tension instantaneously to the running web R in the longitudinal direction while continuously slowing down the web winding action without interrupting the web winding action, thereby turning the web R into a sewing machine. It is designed to be cut by tearing it off at the textured part.

The web cutting device 5 is constructed using a part of the web feeding device 9 for transferring the web R from the perforation device 3 section to the web winding device 4 section. This web feeding device 9 includes a pair of left and right upper web feeding rolls 13A, 13B, a middle web feeding roll 14A,
14B, lower web feed roll +5A, 15B are installed with a predetermined interval (for example, about LO cm) in the downward direction. One of the left and right web feed rolls in each pair of left and right upper, middle, and lower web feed rolls (the right web feed roll 3A in Figure 1)
, +4A, +5A are the other (left side) web feed rolls on the drive side or each web feed roll on the drive side] 3A
, I Contact with 4A, 15A and rotate t? It is the driven side that is ignored. Drive side web feed roll l 3A,
I4A and ISA, as shown in FIG.
The lower web feed roll 15Δ and the middle web feed roll l 4 A are wrapped around each other with a rope I6, and then the lower web feed roll 15A and the upper web feed roll ! 3A and the flat belt I7
When the endless chino 82 of the drive device 8 runs, the web feed rolls of the web feed device 9 with a total of 6 gI rotate at the same speed (the web feed rolls 13A, I4A, and I5A on the right side rotate counterclockwise, Each web feed roll 13B, i4B on the left side.

+5I3 can be rotated clockwise).

The rope pulley 18 provided on the middle web feed roll +4A moves the middle web feed roll l ll by lobe transmission from the lower web feed roll 15A when the foot I9 of the middle web feed roll 14A itself is not driven. A is rotated at the same speed as the lower web feed roll 15A (and the upper web feed roll 13A), and as described later, the middle web feed roll I tI A
When the nosuke 19 is rotated at a faster speed than the rotational speed of the rope wheel 18, the middle web feed rolls 147 to 147 are rotated at a faster speed than the lower web feed roll +5A (or the upper web feed roll 13A). Become.

The web cutting device 5 includes the two left and right upper web feed rolls 13Δ, 13B, the two left and right middle web feed rolls 14A, 14B, and the right middle web feed roll 14A.
and a rotary drive device 51 that instantaneously rotates at high speed.

The rotation drive device 51 is a right middle web feed roll +4A.
A rotating body 52 that freely rotates around the outer circumference of the end 19a of the support 19
, a belt 54 wound around a pulley 50 (FIG. 1) rotated by an endless chain 82 of the drive device 8 and a pulley 53 provided on a rotating body 52;
2 is provided with an electromagnetic clutch 55 that connects the shaft 19 to the shaft 19 in a freely contactable and removable manner. The rotating body 52 is configured to be continuously rotated while the endless chain 82 of the drive device 8 is running, and the rotating body 52 is driven by receiving power from the lower web feed roll 15A. The rotational speed of the middle web feed roll +4A when
(about 1,500 revolutions per minute, for example). The electromagnetic clutch 55 receives a signal from a counter device (for example, detects the rotational speed of the shaft of the web unwinding device l) that detects when the web is unwound from the raw roll P by the length of the web per 1 g of product. The clutch plate 56 is brought into contact with the rotating body 52 momentarily (for example, only for about one second) in response to a signal, thereby transmitting the rotational force of the rotating body 52 to the shaft I9.

In this web cutting device 5, the electromagnetic clutch 55 is actuated by a signal from the counter device as described above.
When the rotary body 52 and the shaft I9 are connected, the right middle web feed roll 14A receives power from the rotary body 52 and is rotated at a higher speed than the normal rotation speed (at this time, the left middle web feed roll 14A receives power from the rotary body 52 and rotates at a higher speed than the normal rotation speed). Roll 14B is also rotated at high speed), upper web feed roll +3A, 1
3B and middle web feed roll +4. A difference in rotational speed occurs between the upper web feed rolls 13A and 14B, and the upper web feed rolls 13A and 13
13 and the middle web feed rolls 14A and 14B, tension is applied to the web R portion in the web length direction, so that the web R is traveling between the upper web feed roll and the middle web feed roll. The web R is torn off at the perforated portion.

The left and right web feed rolls (13A, 13 [3, +4A, 1413, 15
The web R transferred between A and 15I3) is carried by a flat belt 17 wound between the upper and lower web feed rolls 13A and 15A on the right side, and an endless belt 41 to be described later.
An air jet nozzle 80 is provided which acts to press the web against the flat bell.
It is transferred to the lower side while being biased towards the 17 side.

The web winding core circulation transfer device 7 includes a total of six web winding cores 71, 71, . Each web winding core 71, 71... is attached to the web winding core 7.
1 around 1 buko out Dal is l + suuchincho goshi 5j how many! Web winding position B where the web R is wound around the web winding core 71 and the web roll T wound around the web winding core 71 is moved to the web winding position B where the web R is wound around the web winding core 71 The web roll is moved intermittently between the web roll removal position C and the web roll removal position C.

The circulation drive device 70 transmits power from a rotating shaft 83 rotated by a motor 81 of the drive device 8 to an endless chino 72 via a clutch device (with a brake device) 74 and a power transmission device such as a belt 75 and a chain 76. The sprocket shaft 73 is rotated.

As will be described later, the cludge device 74 generates a signal (a signal generated by a web winding device 23 to be described later) that is emitted immediately after the web end Ra is wound around the web winding core 71 at the web end winding position A. immediately after the activation of the
(The end chain 72 is cut after traveling 1/6 of its total length. In other words, one operation of the circulation drive device 70 allows the web winding core 71 to be cut from the web end winding. The web winding core 71 at the web winding position B is moved from the position A to the web winding position B.
In this embodiment, the web roll removal position C is reached after the circulation drive device 70 operates three times.

Each web winding core 71, 71... is provided with a roller 71b that is rotatable around a shaft 71a fixed to an endless chino 72 and that forms a cylindrical outer peripheral surface as shown in FIG. , the web R is wound around the roller 7. Each web winding core 71, 71... has its shaft 7
A space (hollow part 77) is formed between the outer peripheral surface of 1a and the inner peripheral surface of roller 71b. Also, applicable! An air passage 79 is formed inside the shaft 71a to reach a hollow part 77 in the roller 71b from the base end surface 71c of the shaft 71a, and an air passage 79 is formed in the outer peripheral surface of the roller 71b to communicate with the hollow part in the roller 71b. Several air suction holes 78, 78... are formed, and as will be described later, when the air suction device 90 suctions the air in the hollow portion 77 from the base end lower part 9a of the air passage 79 in the shaft 71a. , air near the outer peripheral surface of the roller 71b is sucked in from air suction holes 78, 78, . . . on the outer peripheral surface of the roller 71b. In this embodiment, the air suction hole 78 is [! - A total of six side installations (F) are provided, three on each side, at positions facing each other in the circumferential direction of the rough 1b and at predetermined intervals in the axial direction. This is Shino.

The web winding device 1 passes through the web end winding position A and the web winding position B8 from the lower right side web feed [J-ru 15Δ (175) and reaches a position further below the lower end of the endless chain 72. The endless belt 4I is provided with an endless belt 4I that is made to run in circulation within the range.This endless heald 41 is wound around the lower right web feed roll 15A, and is made to run in circulation by the lower right web feed roll +5A. Also, this endless belt 4I contacts the outer peripheral surface of the web winding core 71 located at the web end winding position A and wraps the web end around the web winding core 71 located at the web end winding position A. (Top end of trailing side web) When Ra is wound, it contacts the outer circumferential surface of the web winding body S wound around the web winding core 71 located at the web winding position B. The web winding body S can be grown around the web winding core 71 at the web winding position.

Incidentally, as the diameter of the web wound body S increases at the web winding position B, the endless belt 41 becomes tensioned, so the endless belt 41 is provided with an adjusting device 42 for adjusting the belt tension. ing. This adjustment device 42 is adapted to adjust the belt tension by expanding and contracting an air cylinder 43 and moving a tension roller 44 according to the belt tension.

At the web end winding position A, a roller 45 is provided for pressing the endless heald 41 against the outer peripheral surface of the web winding core 71 located at the web end winding position A.

A web end winding device 2 is provided at the web end winding position A for winding the web end (the leading end of the trailing web) lla around the web winding core 71 at the web end winding position Δ. However, the hollow part 7 of the web end winding device winding core 71
By suctioning the air in 7, the end of the Uso winding is attracted to the outer peripheral surface of the web winding core 71. The air blowing system has first, second, and third nozzles 24, 25, and 2G that are provided at three positions and blow air toward the outer peripheral surface of the web winding core 71 on the lower side in the rotational direction. Nora is provided.

As shown in FIG. 4, the air suction device 90 includes an air passage 79 formed in the heel 71a of the web winding core 71, an intake pipe 92 communicating with the open lower 9a at the 9th end, and the intake vibrator 92. The blower 91 that sucks the air in the hollow part 77 of the web winding core 71 and the tip opening 92a of the suction vibrator 92 are brought into contact with and separated from the core 9a between the proximal side of the air passage 79 of the tube 71a (fill). The intake pipe is equipped with an elastic paragin 911 at the tip of the intake vibe 92.
is provided.

This air suction device 90 connects the air cylinder 93 to
-'c ++-A J-r'+ Shigo59j
I lost my ffi plan △ 1. = A A +'7
An intake pipe 92 is connected to the τ-buy winding core 71, and a tip opening 92a of the intake pipe 92 communicates with the proximal end lower part 9a on the web winding core 71 side.
When air is sucked from the web winding core 71, the air is sucked into the hollow portion 77 from the air suction holes 78, 78, . . . of the web winding core 71. Note that the blower 91 may take in air continuously or may take in air intermittently only when the air cylinder 93 is extended. The air cylinder 93 is extended once before the trailing web end Ra of the web R cut by the web cutting device 5 reaches the web end winding position (at that time, the blower 91 performs the suction action). When the trailing side web end Ra of the cut web R contacts the outer peripheral surface of the web winding core 71, the air suction hole 7
8. The web end R due to the air suction action from 78...
a immediately comes to be attracted to the outer circumferential surface of the web winding core. Further, the air cylinder 93 is configured to contract immediately after the web end Ra is wound around the outer peripheral surface of the web winding core, thereby separating the intake pipe 92 from the web winding core 71 side. This allows the web take-up core 71 to float freely when the web take-up core circulation transfer device 7 is driven after the web end is wound.

Also, each nozzle 211, 25 is used for the air blowing.

As shown in FIG. 7, 26 indicates the first, second, and High-pressure air is blown out from each nozzle 24, 25, 26 of 3 in sequence with a small time difference, and the high-pressure air blowing acts to urge the web end Ra toward the outer peripheral surface of the web winding core 71. This allows the air suction device 90 to reliably perform the web end adsorption action. By these web end winding actions and the web winding core 71 operations by the endless belt 41 of the web winding device 4, the web end Ra can be quickly and reliably wound around the web winding core 71. It is now possible to do so.

In this embodiment, the second nozzle 25 is provided at the tip of the rod of the air cylinder 27, and is normally retracted to a position where it does not collide with the web take-up core 71 when the circulation drive device 70 is activated. Air cylinder 2 just before blowing out
7 is extended and approaches the web take-up core 71.

Immediately after the web end Ra is wound around the web winding core at the web end winding position A, the web winding core circulation transfer device 7 is activated to wind the web around which the web end fla is wound. The core 71 is transferred from the web end winding position to the web winding position B.

At the web winding position B, the endless belt 41 of the web winding device 4 is in contact with the outer surface of the web wound around the web winding core 71. It acts to grow the web roll S.

At the web roll removal position C, the web roll T formed around the web winding core 71 is removed from the web winding core 71.
A web roll removal device 6 is provided for removal from 1. As shown in FIG.
By extending the air cylinder 61, the web roll T formed around the web winding core 71 located at the web roll removal position C can be pushed off from the web winding core 71. It looks like this. In this web roll removing device 6, the air cylinder 61 is shifted from expanding and contracting only once every time the circulation drive device 70 of the web winding core circulation transfer device 7 operates once.

Next, to explain the usage and operation of the illustrated web roll manufacturing device, first, the web end from the raw roll P is passed through the perforation device 3, the web feeding device 9, and then the web end winding position A. As shown in FIG. 5, the web is wound around the outer periphery of the web winding core 71 located at the web winding position B. Then, when the motor 81 of the drive device 8 is energized in this state, the endless chain 82 is caused to circulate, the web unwinding device 1 unwinds the web Q from the raw roll P, and the perforation device 3 unwinds the web Q. The web is perforated at predetermined intervals, and the web winding body S is grown around the web winding core 71 at the web winding position B by the web winding device 4 (FIG. 6). When a predetermined length of web Q is unwound from the raw roll P, a signal is emitted from a counter device, and the electromagnetic clutch 55 of the web cutting device 5 is actuated by the signal, as shown in FIG. Upper web feed roll +
Tension is applied to the web R running between 3A, 13r3 and the middle stage +4A, 14B in its length direction, causing the web ■)
will be cut at the perforated area. Both ends of the cut web R (leading side web end flb, trailing side web end fla) are connected to the flat heald 17 or belt = 11
is guided to the web end winding position A side. As shown in FIG. 7, the leading web end Rb is wound as it is around the outer periphery of the growing web roll S at the web winding position B, and the trailing web end Ra is moved to the web end winding position. The outer peripheral surface of a certain web winding core 71 (air suction hole 78
), the web is instantly drawn around the 11× core 71 by the air suction action from the air suction device 90 (FIG. 8). Web end α
Immediately after the web end Ra is attracted to the web inspection nearer 1 at position i+'2, A, the web winding core circulation (multi-feeding device 7 is activated and the web is rolled up as shown in FIG. 9). The web winding core 71 that was in the winding position B with the web roll already wound is moved down, and the web winding core 71 that was in the position A with the web end winding completed is moved down. The web is moved to the web winding position B, and the web roll S is grown there. In this way, the web roll T is sequentially formed around the web winding core 71. When the web winding core 71 formed with the web roll T moves to the web roll removing position C, the web roll 'I' is moved to the web winding core 7 by the web roll removing device 6.
It will be pushed out from 1.

This web roll manufacturing apparatus can continuously manufacture web rolls 'r without interrupting the winding operation as described above, eliminating time loss.

In addition, the web roll T manufactured in this way does not shift like a bamboo shoot or have wrinkles (or folds) at the end of the web winding start, as shown in FIG. 14 or FIG. 15, for example. It looks good.

(Effects of the Invention) The web roll manufacturing apparatus of the present invention includes a web winding core 71 having a hollow cylindrical outer circumferential surface and an air suction hole 78 communicating with the hollow portion 77 formed in the outer circumferential surface. The air suction device 9 uses air in the hollow part 77 of the web winding core 71 to
The web end winding device 2 is provided so that the winding start end Ra of the web can be wound around the outer circumferential surface of the web catching core 71 by each suction.
When the web winding start end comes into contact with the outer peripheral surface of the web winding core 71, the web winding start end is instantly attracted to the outer peripheral surface of the web winding core 71 by the air suction action of the air suction device 90. As a result, it becomes difficult for the web winding start end to shift in the axial direction with respect to the web winding core 71, making it difficult for the web roll to shift in a bamboo-like shape. This has the effect of making it possible to produce a web roll with good appearance, since the end of the web winding becomes wrinkled and looks short.

[Brief explanation of drawings]

FIG. 1 is an overall front view of a web roll manufacturing apparatus according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a perspective view of the vicinity of the web winding device in FIG. 1. , Figure 4 is the third
The cross-sectional view of the web end winding device shown in the figure, FIGS. 5 to 9 are respectively explanatory views of the operating method of the web roll manufacturing device of FIG. 1, and FIG. 1O is a cross-sectional view of the web roll manufacturing device of FIG. FIG. 11 is an overall IE view of the web roll manufacturing apparatus according to the applicant's previous application; FIG. 12 is a perspective view of the vicinity of the web winding device in FIG. 1I;
Figure 3 is an explanatory diagram of the operation of the web end winding device in Figure 11;
4 and 15 are perspective views of conventional web rolls, respectively. l... Web unwinding device 2... Web end winding device 3... Perforation processing device 4... Web winding device 5... Web cutting device 6... Web roll removal device 7... Web winding core circulation transfer device 8... Drive device 9... Web feeding device 71... Web winding core 77 ...Hollow part 78...Air suction hole 90...Air suction device A...Web end winding position B...Web winding position C...Web Roll removal position L]...Original roll Q...Web R...Web na...Web winding start end S...Web winding body T... ...Web Roll/J Figure 3 Figure 5 Figure 7 Figure 8 Figure 10

Claims (1)

[Claims] 1. A web unwinding device (1) for unwinding the web (Q) from the raw fabric roll (P), and a web unwinding device (1) for unwinding the web (Q) from the raw fabric roll (P), and a web unwinding device (1) for unwinding the web (Q) from the raw fabric roll (P), and a predetermined device installed in the web length direction a perforation device (3) for making perforations for cutting in the width direction of the web at intervals, and an air suction device having a hollow, cylindrical outer peripheral surface and communicating with the hollow portion (77) on the outer peripheral surface. The web winding is started by using a web winding core (71) with holes (78) formed therein and sucking air in the hollow part (77) of the web winding core (71) with an air suction device (90). a web end winding device (2) capable of winding the end (Ra) around the outer peripheral surface of a web winding core (71);
The perforated web (R) is
1), and a web winding device (4) formed around the web winding core (71) on the upper side in the web running direction from the web winding device (4). The rolled web body (S) is rolled into the web (R).
a web cutting device (5) for cutting the web roll (T) cut off from the web (R) and supported by the web winding core (71);
1) A web roll manufacturing apparatus comprising: a web roll removing device (6) for removing the web roll from 1).