JPH0417858B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a web roll that can be continuously manufactured by winding a web into a roll without interrupting the web winding action. This invention relates to a roll manufacturing device.

(Prior Art) Conventionally, as shown in FIG.
A roll-shaped wet tissue packaged in a container is commercially available, which can be stored in a cylindrical container X and taken out by cutting the wet tissue into predetermined lengths from the outlet Xa of the cylindrical container X, for example, when wiping hands. There is.

The roll-shaped wet tissue W shown in FIG. 11 is made by winding a single long web with perforations Y for cutting at intervals of a predetermined length (for example, 20 to 30 cm) in a coreless state. Furthermore, the web roll is stored in a cylindrical container X in a wet state. The rolled wet tissue in a container is taken out from the inner end Wa side of the rolled wet tissue W.
The inner end of the rolled wet tissue W
If you pinch Wa with your fingers and pull it out strongly, when the first perforated Y part is pulled out from the outlet Xa, it will be cut at the perforated Y part and a certain length of wet tissue will be produced. It is becoming possible to obtain it.

By the way, this type of wet tissue is 1
The larger the amount (area) taken out per batch, the easier it is to use, but in the conventional rolled wet tissue in a container shown in Fig. 11, if the width of the web is widened, the width of the rolled wet tissue W becomes wider. However, the height of the cylindrical container (The distance to pull out the tissue became longer) and there was a risk that the wet tissue would break during removal.
In particular, the conventional roll wet tissue W is
Since it is made by winding a single long web as it is, its tensile strength is relatively weak and it tends to break easily when taken out.

In addition, if a single long web is folded in the width direction and wound into a roll, the tissue width can be narrowed and the tensile strength will be strong relative to the width. A web roll manufacturing apparatus that winds the web into a roll while folded in the width direction has not yet been developed.

(Object of the Invention) In view of the problems of the conventional roll-shaped wet tissue as described above, the present invention makes it possible to manufacture a narrow web roll without reducing the amount of web per certain length (web area). A continuously operating web roll that allows such web rolls to be manufactured continuously without interrupting the web winding action, and that allows the web roll to be cut cleanly without using a knife when separating the web rolls. The purpose is to propose manufacturing equipment.

(Means for achieving the object) The continuous operation type web roll manufacturing apparatus of the present invention has the following features:
A web unwinding device for unwinding the web from the original fabric roll; a web folding device for continuously folding the web unwound from the original fabric roll in the width direction; A perforation device for cutting perforations in the web width direction, a plurality of web winding cores for winding the web, and a web end winding position for winding the web end and a web winding position for winding the web. a web winding core circulation transfer device that sequentially circulates between a web winding position where the wound web roll is removed from the web winding core and a web roll removal position where the wound web roll is removed from the web winding core; a web winding device for sequentially winding the perforated folded web around each of the web winding cores while continuously running the folded web at a take-up position; By applying tension to the perforated portion of the web in the longitudinal direction of the web while continuously running the web and tearing off the perforated portion, the web wound body formed around the web winding core is a web cutting device configured to cut the web from the web; and a web roll removing device configured to remove the web roll cut from the web and supported by the web winding core from the web winding core at the web roll removing position. It is characterized by having the following.

(Function) According to the present invention, a plurality of web winding cores are sequentially circulated between a web end winding position, a web winding position, and a web roll removal position, and the web is kept running continuously. The web end is wound around the web take-up core at the web end winding position, and after winding the web to a predetermined length at the web winding position, the web is cut by a web cutting device, and then at the web roll unloading position. The web roll supported by the web take-up core can be removed, allowing continuous operation without stopping the machine drive system (web unwinding device, web take-up device, etc.) .

Further, in the present invention, the web cutting device tears off the perforated portion of the web by applying tension to the perforated portion, thereby eliminating the need for a blade for cutting the web. It becomes possible to cut neatly (in a straight line) along the

Furthermore, since the folded web folded in the width direction by the web folding device is wound around the web winding core by the web winding device, the amount of web per certain length can be reduced. Narrow web rolls can be manufactured without any problems.

(Effects of the invention) The continuous operation type web roll manufacturing apparatus of the present invention has the following features:
As described above, a flat web is folded in the width direction by a web folding device, the folded web is wound into a roll around a web take-up core by a web take-up device, and then the web is sent to a web cutting device. After separating the web roll from the folded web,
The web roll formed around the web take-up core can be removed from the web take-up core by a web roll removal device, and the web winding action can be interrupted in a series of web roll manufacturing processes. Since the process can be carried out continuously without any problems, one web roll manufacturing device has the advantage of being able to continuously manufacture web rolls made by winding folded webs into rolls from original rolls. .

In addition, the web cutting device tears off the perforated part by applying tension to the perforated part, thereby eliminating the need for a blade for cutting the web and eliminating the need to replace the blade. The effect is that you can cut cleanly (in a straight line) at the perforated part without using a knife.

Furthermore, the web roll manufactured by this continuous operation type web roll manufacturing equipment has a narrower width without reducing the area per unit, which increases the tensile strength in the longitudinal direction of the web. For example, when using a web roll as a rolled wet tissue in a container, the height of the container can be lowered, reducing storage and transportation costs of the product, and the stability of the container during use can be reduced. There is also the effect that the condition becomes better.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. 1 to 10. The continuous operation type web roll manufacturing apparatus of the embodiment shown in FIGS.
As shown in the figure, a web roll T is manufactured.

The web roll T shown in FIG. 10 is formed by winding a folded web in which both ends of the web in the width direction are folded in advance to an appropriate width G into a coreless roll. The height H of the entire T is smaller by the amount by which both ends are folded (twice the width G) compared to a web roll wound without folding both ends (for example, the web roll shown in FIG. 11).

FIG. 1 shows the overall configuration of the continuous operation type web roll manufacturing apparatus of this embodiment, and this continuous operation type web roll manufacturing apparatus has the following functions: A web unwinding device 1, a web folding device 2 for folding the web Q unwound from the raw roll P in the width direction, and a web folding device 2 for folding the web Q unwound from the raw roll P in the width direction, and a web folding device 2 for folding the web R folded by the web folding device 2 to determine its length. A perforation device 3 for perforating at predetermined intervals in the direction, and a plurality of (six in this embodiment) web winding cores 71, 71 for winding the folded web R. and each web winding core 71, 71... will be described later.
A web winding core circulation transfer device 7 for sequentially and intermittently circulating the web winding core, a web winding device 4 for winding the folded web R around the web winding core 71, and the web winding core 71. A web cutting device 5 for cutting off the web roll S formed around the folded web R from the folded web R; A web roll removing device 6 for removing the web roll from the winding core 71, the web unwinding device 1, the perforation processing device 3, a circulation drive device (described later) for the web winding core circulation transfer device 7, and the web winding device 4. and a common drive device 8 that drives the web cutting device 5.

The above-mentioned raw roll P, web unwinding device 1, web folding device 2, 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 as follows: Each of them is supported on one side of a single vertical plate 10 having a large area.

The drive device 8 includes a single motor 81 and the motor 8
The chain 82 has an endless chain 82 that circulates through a rotation shaft 83 that is rotated by a rotation shaft 83. The endless chain 82 is wound around each sprocket of the web unwinding device 1, perforation device 3, web winding device 4, and web cutting device 5 on the back side of the vertical plate 10.
When the vehicle 2 runs, the devices 1, 3, 4, and 5 operate simultaneously.

The web unwinding device 1 has an endless belt 11 that is circulated by the endless chain 82, and by bringing the endless belt 11 into contact with the outer peripheral surface of the raw fabric roll P, the web unwinding device 1 unwinds the raw fabric roll P. A flat web Q can be unwound continuously from P.

The web folding device 2, as shown in FIG.
A folding web R having a “dog”-shaped side surface, a tapered naper-like base side 21a, and a folded tip side 21b.
Rectangular guide plate 2 with the same width as the width H of
1, and left and right 2 adjacent to one side of the guide plate 21.
It is configured with two folded plates 22, 22. This web folding device 2 folds a wide (width F) flat web Q with no folds onto a guide plate 21.
along the outside of the web Q, and both ends Qa of the web Q,
By passing Qa in a folded state between the side part of the tip side 21b of the guide plate 21 and each folding plate 22, 22, both ends in the width direction are folded by the width G, as shown by the symbol R. A continuous folded web is formed.

The perforation processing device 3 includes two rotating rolls 3.
1 and 32 are brought into contact with each other and rotated in opposite directions, and a cutter 33 for perforation is attached to one of the rotating rolls 31. The rotating roll 31 on the side to which the cutter 33 is attached is designed so that its outer circumferential length is the same as the interval of perforations to be formed in the folded web R (for example, 20 to 30 cm). This perforation process allows the folded web to be easily cut when cutting the folded web, which will be explained next.
This is so that the product can be cut into pieces of a certain length and taken out.

A web cutting device 5 for cutting the folded web R is provided at a position below the perforation processing device 3 in the web running direction and above the web winding device 4. This web cutting device 5 uses a mechanism to be described later to instantly apply tension to the running folded web R in its longitudinal direction while continuously operating without interrupting the web winding action. It is designed to be cut by tearing it off at the perforated part.

The web cutting device 5 is constructed using a part of the web feeding device 9 for transferring the folded 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, interrupted web feeding rolls 14A, 14B, and lower web feeding rolls 15A, 15B, each with a predetermined interval (for example, about 10 cm) in the vertical direction. is set up.
One of the left and right web feed rolls (the right web feed roll in FIG. 1) in each of the left and right pairs of upper, middle, and lower web feed rolls 13
A, 14A, and 15A are the drive side, and the other (left side) web feed roll is a driven side that is rotated by contacting with each of the drive side web feed rolls 13A, 14A, and 15A. As shown in FIG. 3, the drive-side web feed rolls 13A, 14A, and 15A are configured such that the lower web feed roll 15A is rotated (rotated counterclockwise) by the endless chain 82 of the drive device 8, and the lower web feed roll 15A is roll 15
A and the middle web feed roll 14A with the rope 16
The lower web feed roll 15
A and the upper web feed roll 13A are connected to the flat belt 1.
7, and the endless chain 8 of the drive device 8
2 runs, a total of six web feed rolls of the web feed device 9 rotate at the same speed (each of the web feed rolls 13A, 14A, 15A on the right side rotates counterclockwise; each of the web feed rolls 13B, 14 on the left side rotates to the left).
B and 15B are designed to be rotated clockwise). Furthermore, a flat belt 17 is also installed between the upper web feed roll 13B and the lower web feed roll 15B on the left side.
is wrapped around each left and right flat belt 17,1.
7, it guides the folded web R being transferred between the left and right web feed rolls.
When the shaft 19 of the middle web feed roll 14A is not driven, the rope wheel 18 provided on the middle web feed roll 14A is
The middle web feed roll 14A is connected to the lower web feed roll 15A (and the upper web feed roll 1) by the rope transmission from the lower web feed roll 15A.
3A), and when the shaft 19 of the middle web feed roll 14A is rotated at a speed faster than the rotational speed of the rope wheel 18, as will be described later, the middle web feed roll 14A rotates at the same speed as the lower web feed roll. 15A (or the upper web feed roll 13A).

The web cutting device 5 includes the two left and right upper web feed rolls 13A, 13B, the two left and right middle web feed rolls 14A, 14B, and a rotation drive device 51 that momentarily rotates the right middle web feed roll 14A at high speed. It is configured.

The rotation drive device 51 includes a rotary body 52 that freely rotates around the outer periphery of the end 19a of the shaft 19 of the right middle web feed roll 14A, and a pulley 50 (a first
A belt 54 is wound between the rotating body 52 and a pulley 53 provided on a rotating body 52, and an electromagnetic clutch 55 connects the rotating body 52 to the shaft 19 so as to be able to come into contact with and separate from the shaft 19. 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 middle web feeding roll 14A can be rotated at a much higher speed (for example, about 1500 rotations per minute) than the rotational speed of the intermediate web feed roll 14A (for example, about 500 rotations per minute) when the middle web feed roll 14A is running. The electromagnetic clutch 55 is connected to a counter device (for example, detects the rotational speed of the shaft of the web unwinding device 1) that detects when the web is unwound by the web length per product from the original roll P. The clutch plate 56 is moved instantaneously (for example, only for about 1 second) by the
The rotational force of the rotating body 52 is transmitted to the shaft 19 by contacting with the rotating body 52 .

In this web cutting device 5, when the electromagnetic clutch 55 is activated by a signal from the counter device and the rotating body 52 and the shaft 19 are connected, the right middle web feeding roll 14
A receives power from the rotating body 52 and is rotated at a higher speed than the normal rotation speed (at this time, the left middle web feed roll 14B is also rotated at a high speed). Then, the upper web feed roll 13
A, 13B and middle web feed rolls 14A, 14
A difference in rotational speed occurs between the upper web feed rolls 13A, 13B and the middle web feed roll 14.
Tension is now applied to the folded web R portion transferred between A and 14B in the web length direction,
As a result, the folded web R is torn off at the perforated portion of the folded web R running between the upper web feed roll and the middle web feed roll. Note that both ends of the web cut at the perforated portion are attached to the flat belts 17, 17.
It is transferred to the downstream side while being guided from both sides by the .

The web winding core circulation transfer device 7 has a total of six web winding cores 71, 71... attached at equal intervals to an endless chain 72 which is intermittently circulated by a circulation drive device 70, which will be described later. The web winding cores 71, 71, . a web winding position B for winding the web;
The web roll T wound around the web take-up core 71 can be sequentially and intermittently moved between a web roll removal position C where the web roll T wound around the web take-up core 71 is removed from the web take-up core 71.

The circulation drive device 70 transmits power from a rotating shaft 83 rotated by a motor 81 of the drive device 8 through a clutch device (with a brake device) 74 and a power transmission device such as a belt 75 and a chain 76. Sprocket shaft 73 of endless chain 72
It is designed to rotate. Further, as will be described later, the clutch device 74 wraps the web end around the web winding core 71 at the web end winding position A.
It is connected by a signal emitted immediately after Ra is wound (emitted from a timer or the like immediately after the operation of the web end winding device 23 described later), and by that connection, the endless chain 72 is It is designed so that it can be cut after running for a length of 6. That is, with one operation of the circulation drive device 70,
The web winding core 71 is moved from the web end winding position A to the web winding position B.
Note that the web winding core 71 at the web winding position B
In this embodiment, the web roll removal position C is reached when the circulation drive device 70 operates three times.

Each web take-up core 71, 71... is provided with a roller 71b that is rotatable around a shaft 71a fixed to an endless chain 72, as shown in FIG. Can be wrapped.

The web winding device 4 is an endless endless chain that circulates in a range from the position of the right lower web feed roll 15A through the web end winding position A and the web winding position B to reach a position further below the lower end of the endless chain 72. A belt 41 is provided. This endless belt 41 is connected to the right lower web feed roll 15A.
The web is wound around the web, and is made to circulate by the lower right web feed roll 15A. Further, this endless belt 41 contacts the outer circumferential surface of the web winding core 71 located at the web end winding position A, and wraps the web end ( The leading end of the trailing web) Ra is wound, and the web is wound by contacting the outer peripheral surface of the web winding body S wound around the web winding core 71 located at the web winding position B. At position B, the web roll S can be grown around the web take-up core 71. Note that when 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 adjustment position 42 for adjusting the belt tension. ing. This adjustment device 42 is capable of adjusting 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, the endless belt 41 is attached to the web winding core 71 located at the web end winding position A.
A pressing roller 45 is provided for pressing against the outer circumferential surface of.

A lower left web feed roll 1 is located close to the outer surface of the endless belt 41 that runs between the right lower web feed roll 15A and the pressing roller 45.
A web guiding belt 39 is stretched between the pulley 5A and the pulley 38 provided below it, and the folded web R is stretched between the lower web feed roll position and the web end winding position A between both belts 41 and 39. I try to guide them.

At the web end winding position A, a web end winding device 23 for winding the web end (the leading end of the trailing side web) Ra around the web winding core 71 at the web end winding position A is provided. There is. This web end winding device 23 is of an air blowing type in this embodiment, and has first, second, and third nozzles 24, 2 at three positions outside the periphery of the web winding core 71.
5 and 26 are installed toward the outer peripheral surface of the web take-up core 71 on the lower side in the rotational direction. As shown in FIG. 7, when the trailing web end Ra of the folded web R cut by the web cutting device 5 approaches the web end winding position A, the first, second, The third nozzles 24, 25, and 26 sequentially blow out high-pressure air with a slight time difference, and the high-pressure air blowing action and the web winding core 71 times by the endless belt 41 of the web winding device 4 The web end Ra can be wound around the web take-up core 71 depending on the operation. Note that in this embodiment, the third nozzle 2
6 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.
Immediately before air is blown out, the air cylinder 27 is extended to approach the web take-up core 71.

Immediately after the web end Ra is wound around the web take-up core at the web end winding position A, the web take-up core circulation transfer device 7 is activated to unwind the web around which the web end Ra is wound. Core 71
is transferred from the web end winding position A to the web winding position B.

At the web winding position B, the web winding core 7
Since 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, the web winding body S acts to grow around the web winding core 71. .

A web roll removal device 6 is provided at the web roll removal position C for removing the web roll T formed around the web take-up core 71 from the web take-up core 71. As shown in FIG. 4, this web roll removal device 6 is constructed by attaching a push plate 62 to the rod tip of an air cylinder 61. By extending the air cylinder 61, the web roll removal device 6 is moved to the web roll removal position C. The web roll T formed around the take-up core 71 can be pushed off from the web take-up core 71. The web roll removing device 6 is configured such that the air cylinder 61 expands and contracts only once every time the circulation drive device 70 of the web take-up core circulation transfer device 7 operates once.

Next, to explain the usage and operation of the continuous operation type web roll manufacturing apparatus shown in the figure, first, the web end from the raw roll P is passed through the web folding device 2, the perforation processing device 3, and the web feeding device 9, and then the web is further processed. The web winding core 71 is wound around the outer periphery of the web winding core 71 which has passed through the end winding position A and is now at the web winding position B as shown in FIG. Then, in that state, the drive device 8
When the motor 81 is energized, the endless chain 82 is caused to run in circulation, the web unwinding device 1 unwinds the web Q from the raw roll P, and the web folding device 2 folds both ends of the flat web Q in the width direction.
Qa and Qa are folded back by the width G (Fig. 2), perforations are made on the folded web R at predetermined intervals by the perforation processing device 3, and the web is moved to the web unwinding position B by the web winding device 4. In this step, a web roll S is grown around the web take-up core 71 (FIG. 5). When a predetermined length of web Q is unwound from the raw roll P, a signal is emitted from, for example, a counter device, and the electromagnetic clutch 55 of the web cutting device 5 is actuated by the signal, as shown in FIG. Then, tension is applied in the longitudinal direction to the folded web R running between the upper web feed rolls 13A, 13B and the middle stages 14A, 14B, so that the folded web R is cut at the perforated portion. Both ends of the cut folded web R (leading side web end Rb, trailing side web end Ra) are sandwiched between both flat belts 17, 17 or belts 41, 39, and are placed as they are on the web end winding position A side. be transported. As shown in FIG. 7, the leading web end Rb is wound around the outer periphery of the growing web S at the web winding position B, and the trailing web end Ra is at the web winding position A. Immediately after passing a certain web take-up core 71, high-pressure air is blown out from each nozzle 24, 25, 26 of the web end winding device 23, so that the web is wound around the web take-up core 71. (Figure 8). Web end at web end winding position A
Immediately after Ra is wound around the web take-up core 71, the web take-up core circulation transfer device 7 is activated, and as shown in FIG. The web winding core 71 is moved downward, and the web winding core 71 with the web end wound thereon, which is in the web end winding position A, is moved to the web winding station B, where the web winding body S is moved.
will be allowed to grow. In this way, the web roll T is sequentially formed around the web winding core 71, and when the web winding core 71 on which the web roll T has been formed reaches the web roll removing position C, the web roll removing device 6 As a result, the web roll T is pushed out from the web take-up core 71.

As described above, this continuous operation type web roll manufacturing apparatus can continuously manufacture web rolls T without interrupting the winding action, eliminating time loss.

Further, the web cutting device 5 is designed to tear the web at the perforated part by applying tension to the perforated part, so there is no need for a knife for cutting the web, and the web can be torn in a straight line along the perforation. Can be cut. When the cut end is straight, it becomes easy to start winding the end of the web on the web take-up core 71, and the end of winding the web roll becomes neat.

Furthermore, the web roll T manufactured in this manner can have a narrow product width H without reducing the amount (area) of web per certain length, as shown in FIG. Since the web is folded back, the tensile strength in the longitudinal direction of the web can be increased in proportion to its width H. The web roll T shown in FIG. 10 is placed in a cylindrical container as shown in FIG. 11 and used as a rolled wet tissue. At this time, since the product width H is narrow, a cylindrical container for storing the product can also be of low height.

[Brief explanation of drawings]

FIG. 1 is an overall front view of a continuous operation type web roll manufacturing apparatus according to an embodiment of the present invention, and FIG.
3 is a cross-sectional view of the perforation processing device shown in FIG. 1, FIG. 4 is a perspective view of the vicinity of the web winding device shown in FIG. Figure 1 is an explanatory diagram of the operating method of the continuous operation type web roll manufacturing apparatus, Figure 10 is a perspective view of the web roll manufactured by the continuous operation type web roll manufacturing apparatus of Figure 1, and Figure 11 is an illustration of the conventional web roll manufacturing apparatus. FIG. DESCRIPTION OF SYMBOLS 1... Web unwinding device, 2... Web folding 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, 2
3... Web end winding device, 71... Web winding core, A... Web end winding position, B... Web winding position, C... Web roll removal position, P... Original fabric roll, Q ...Web, R...Folding web,
S...Web roll body, T...web roll.

Claims (1)

[Claims] 1. A web unwinding device 1 for unwinding a web Q from a raw roll P, and a web folding device for continuously folding the web Q unwound from the raw roll P in the width direction. 2, a perforation device 3 for cutting perforations in the web width direction at predetermined intervals in the web length direction, and a plurality of web winding cores 71 for winding the web R; 71... are defined as a web end winding position A where the web end Ra is wound, a web winding position B where the web R is wound, and a web roll removal position C where the wound web roll T is removed from the web winding core 71. a web winding core circulation transfer device 7 that sequentially circulates between the web winding cores; and a folded web R that has been perforated at the web end winding position A and the web winding position B.
While continuously running the web winding core 7,
a web winding device 4 for sequentially winding the web around 1, 71, etc.; a web cutting device 5 configured to cut off the web wound body S formed around the web winding core 71 from the web R by applying tension in the transverse direction and tearing off the perforated portion; The web roll T separated from the web R and supported by the web take-up core 71 is moved to the web roll removal position C.
1. A continuous operation type web roll manufacturing apparatus, comprising: a web roll removing device 6 for removing the web roll from 1.