JPS6348591Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a web roll manufacturing device for manufacturing a web roll made by winding a web such as toilet paper or towel paper into a roll. be.

(Prior Art) A web roll (for example, toilet paper or towel paper) manufactured by this type of conventional web roll manufacturing apparatus is a continuous sheet from the beginning to the end of the roll, as shown in FIG. It is constructed by winding a continuous web W′ of material.

However, with such conventional web rolls, the continuous web W′ must be cut into predetermined lengths suitable for use each time it is used, which makes the web cutting process troublesome, and the cut end The edges were sometimes not cut neatly in a straight line, resulting in poor appearance. Incidentally, there are conventional web rolls in which a continuous web is perforated at predetermined intervals for cutting the web, but even with these perforated web rolls, it is necessary to cut the perforated portions when using the web roll. At the same time, each time the device is used, it is necessary to search for the perforation, which is relatively difficult to identify, and this work becomes troublesome.

(Purpose of the invention) In view of the above-mentioned problems with conventional web rolls, the present invention has developed a web roll that allows a certain length of web to be taken out in a separated state by simply unwinding the web each time it is used. The object of the present invention is to provide a web roll manufacturing apparatus that can produce web rolls.

(Means for Achieving the Object) The present invention includes a bed roll for winding a continuous web unwound from a raw roll, and a bed roll for winding the continuous web, and sequentially forming the continuous web into a regular length web of a predetermined length on the outer peripheral surface of the bed roll. a web cutting device for cutting the web; and a web cutting device that is located on the side in the web traveling direction from the web cutting position on the outer circumferential surface of the bed roll, is brought close to the outer circumferential surface of the bed roll, and is cut at a circumferential speed lower than the circumferential speed of the outer circumferential surface of the bed roll. A retard roll that is rotated in a direction opposite to the rotation direction of the retard roll, and a part of a web winding device that is located close to the outer peripheral surface of the retard roll and that functions to wind up each long web into a roll shape. Further, the bed roll is provided with a vacuum device for forwarding the regular length web cut by the web cutting device in the web running direction with the fixed length web cut by the web cutting device adsorbed onto the outer peripheral surface of the bed roll. The regular length web adsorbed on the outer circumferential surface of the bed roll is transferred onto the outer circumferential surface of the retard roll.
The winding roll is equipped with a vacuum device for transferring and adsorbing the regular length web transferred and adsorbed onto the outer peripheral surface of the retard roll onto the outer peripheral surface of the winding roll. At least, after the regular length webs cut into predetermined lengths on the outer circumferential surface of the bed roll are sequentially superimposed on each other on the outer circumferential surface of the retard roll, the ends of the adjacent regular length webs are mutually overlapped by a predetermined length. The web is characterized in that it is configured so that it can be transferred onto the outer circumferential surface of the winding roll and sequentially wound into a roll in a web winding section.

(Function) The web roll manufacturing device of the present invention sequentially cuts a continuous web fed out from a raw roll into regular length webs of predetermined length on the outer peripheral surface of the bed roll using a web cutting device. Each standard length web is adsorbed by a vacuum device provided on the bed roll, retard roll, and winding roll, and the circumferential speed of the outer peripheral surface of the retard roll is made slower than the peripheral speed of the outer peripheral surface of the bed roll. The web is configured such that each end of the web is overlapped with each other by a predetermined size and transferred to the web winding section, and each fixed length web can be wound into a roll in the web winding section. Therefore, the entire process from sequentially cutting the continuous web unwound from the raw fabric roll into fixed-length webs to sequentially winding the fixed-length webs into rolls can be performed continuously. .

(Embodiments) Several embodiments of the present invention will be described with reference to FIGS. 1 to 6. FIGS. 1 and 2 show a web roll manufacturing apparatus Z ₁ according to the first embodiment of the present invention. ,
Figure 5 shows the web roll manufacturing apparatus of the second embodiment.
Z ₂ are shown respectively. Further, FIGS. 3 and 4 show a web roll Y 1 manufactured by the web roll manufacturing apparatus Z ₁ of the first embodiment, and FIG. 6 shows a web roll Y ₁ manufactured by the web roll manufacturing apparatus Z ₂ of the second embodiment. A web roll Y ₂ is shown respectively. Each of the web roll manufacturing apparatuses Z ₁ and Z ₂ of the first and second embodiments is for manufacturing a web roll formed by winding a web such as toilet paper or towel paper into a roll. The web roll manufacturing device Z ₁ of the first embodiment produces a web roll Y ₁ made of a monofilament web, and the web roll manufacturing device Z ₂ of the second embodiment
is a biplane (two-layered) web roll Y ₂
They are for manufacturing each.

The web roll manufacturing apparatus Z ₁ of the first embodiment shown in FIGS. 1 and 2 includes a relatively large-diameter bed roll 1 for winding a continuous web W unwound from a raw roll P, and a bed roll 1 having a relatively large diameter. A web cutting device 5 installed near the bed roll 1 for sequentially cutting the continuous web W into regular length webs X, X, etc. each having a predetermined length M on the outer circumferential surface 1a of the bed roll 1.
and the bed roll outer peripheral surface 1a which is on the web running direction side from the web cutting position (installation position of the web cutting device 5) on the bed roll outer peripheral surface 1a.
Retard roll 2 installed in a position close to
and a web winding device 3 which is located close to the outer circumferential surface 2a of the retard roll 2 and has the function of winding each of the regular length webs X, X, . . . around the winding core Q.

The continuous web W on the side of the original fabric roll P is continuously fed out by the web feeding device 20.

The continuous web W fed out from the raw roll P is
A suitably wide width (for example, 2000 mm) is used, and this web roll manufacturing apparatus is designed to manufacture a web roll having the same length as the web width of the continuous web W. Note that the long web roll manufactured by this web roll manufacturing apparatus is cut into desired product dimensions in a post-process.

The web cutting device 5 is constructed by attaching a knife 7 to the outer surface of a roll 6 for attaching a knife. The circumferential speed of the outer circumferential surface 6a of this cutter attachment roll 6 is set to be the same as the circumferential speed of the outer circumferential surface 1a of the bed roll 1. Further, the diameter of this cutter attachment roll 6 is set so that its outer circumferential length is equal to the length M (FIG. 3) of one regular length web X of the web roll _Y1 to be manufactured. In addition, the length M of the standard length web
is set to an appropriate length depending on the type of product.
Further, in this embodiment, the outer circumferential length of the bed roll 1 is set to three times the outer circumference length of the cutter attachment roll 6, and the outer peripheral surface 1a of the bed roll 1 is
Concave grooves 8, 8, 8 (three locations) for inserting the cutter are formed at positions corresponding to the cutter 7. Therefore, in this web cutting device 5, the blade attachment roll 6 rotates three times while the bed roll 1 rotates once, so that the cutting action is performed three times in total.

The retard roll 2 is used to roll each end of each regular length web X, which has been cut into a predetermined length M, as will be described later.
This retard roll 2 is used to sequentially polymerize Xa and
is installed at a position spaced apart from the web cutting device (the installation position of the web cutting device 5) on the bed roll outer peripheral surface 1a by a length M corresponding to one sheet of the standard length web X in the bed roll rotation direction (arrow L direction). ing.

The bed roll 1 is provided with a vacuum device 11 for forwarding the regular length web X cut by the web cutting device 5 in the web running direction while adsorbing it onto the bed roll outer peripheral surface 1a. This vacuum device 11 has a bed roll outer peripheral surface 1a.
A total of nine suction holes, one each at a position close to both sides of each groove 8, 8, 8 for fitting a cutter, and one each at an intermediate position between each groove 8, 8, 8. 11a, 11b...11i respectively from the inside of the bed roll 1 to the bed roll outer peripheral surface 1.
It is installed and configured to open toward a. Further, the vacuum device 11 moves from a position A on the outer circumferential surface 1a of the bed roll, which is an appropriate length away from the web cutting device in the direction of bed roll rotation (direction of arrow L), to a position B immediately before the installation position of the retard roll 2. The suction action is performed within the angular range α 1 up to ₁ , and the suction action is stopped within the other angular range β ₁ (the angular range from position B to position A in the rotational direction). Therefore, when the continuous web W wound around the outer circumferential surface 1a of the bed roll is cut by the web cutting device 5, the cut-off regular length web X has the following end portion Xb and the intermediate portion Xc. By applying suction to the suction holes (for example, 11b and 11c) located at two locations, the web will not peel off from the outer circumferential surface 1a of the bed roll, and the cut end of the continuous web W side will also be placed in the suction holes (for example, 11
Due to the suction action from a), the bed roll outer peripheral surface 1
This prevents it from being adsorbed onto the surface of a and peeling off. still,
As shown in FIG. 1, when the continuous web W is cut by the web cutting device 5, the suction hole (for example, 11d) located at the leading end Xa of the cut-off regular length web It is located at a position slightly past the position B where the action is stopped, and is in a state immediately after the suction action is stopped, and at this time the leading end Xa of the fixed length web X is on the outer circumferential surface 1a of the bed roll. becomes a free state.

The retard roll 2 is rotated in a direction opposite to the rotational direction of the bed roll 2 (in the direction of arrow R) while being brought close to the bed roll outer circumferential surface 1a. Moreover, this retard roll 2 has its outer peripheral surface 2a
The rotational speed is set so that the peripheral speed of the bed roll is slower than the peripheral speed of the bed roll outer peripheral surface 1a by an appropriate speed, and the diameter (outer peripheral length) of the retard roll 2 is changed every time the bed roll 1 rotates once. 2 is also set to rotate exactly once.

Further, this retard roll 2 is provided with a vacuum device 12 for sequentially transferring and adsorbing the regular length web X, which has been cut and adsorbed on the outer peripheral surface 1a of the bed roll, onto the outer peripheral surface 2a of the retard roll. The vacuum device 12 on the retard roll 2 side has three suction holes 12a, 12 arranged at equal intervals in the circumferential direction on the outer peripheral surface 2a of the retard roll.
b, 12c are provided. In addition, the vacuum device 12 on the retard roll 2 side moves from a position C in the rotational direction immediately before the rotational direction of the retard roll outer circumferential surface 2a at a position that closely corresponds to the bed roll outer circumferential surface 1a to the winding roll of the web winding device 3 (described later). ) The suction action is performed within the angular range α ₂ up to the position D just before the corresponding position in the rotational direction, and the suction action is performed within the other angular range β ₂ (from the position D to the position C in the rotational direction). angle range)
It is set so that the suction action is stopped within the chamber. Also, this vacuum device 1 on the retard roll side
2, each suction hole 11a, 11d, 11g located close to the upper side (upper side in the web running direction) of each concave groove 8 in the vacuum device 11 on the bed roll side is sequentially attached to the retard roll 2. The two suction holes are positioned so that they closely correspond to each other when the two suction holes approach each other. Therefore, when this web roll manufacturing apparatus Z ₁ is operated, the leading end of the regular length web X separated from the continuous web W on the outer circumferential surface 1a of the bed roll
Xa is in a free state with respect to the outer peripheral surface 1a of the bed roll (in the state shown in FIG. 1, the suction hole 11d is stopped for suction), and the suction hole 12a on the retard roll 2 side is on the other hand. Therefore, it can be smoothly transferred and adsorbed from the bed roll outer peripheral surface 1a side to the retard roll outer peripheral surface 2a side. Further, the regular length web X whose leading end Xa is attracted to the retard roll 2 side is
As shown in FIGS. 1 and 2, the intermediate portion Xc becomes slack on the side between the bed roll 1 and the retard roll 2, and the leading side of the regular length web X that is about to be transferred to the retard roll 2 side. The end Xa has already been retard roll 2 in advance.
It enters inside the trailing side end Xb of the fixed length web X that has been transferred to the side, and
The ends Xa and Xb of X overlap each other by a predetermined length N (1/3 of the length M of the regular length web X), and each of the regular length webs With the ends overlapped with each other, the web is sequentially fed forward in the web running direction as the outer circumferential surface 2a of the retard roll rotates.

A pressure roll 10 that contacts the retard roll outer circumferential surface 2a is installed between a position close to the bed roll 1 and a close position of the winding roll 4, which will be described later, on the outer circumferential surface 2a of the retard roll. This press roll 10 eliminates air between the overlapping portions of the ends of each of the regular length webs X, which pass between the press roll outer circumferential surface 10a and the retard roll outer circumferential surface 2a, and This is to bring Xb into close contact with each other so that both regular length webs X, X are difficult to separate.

The web winding device 3 includes two winding rolls 4 and 14 and a presser roll 15. One of the two winding rolls 4 and 14 (hereinafter referred to as the first winding roll) 4
has the same diameter as the diameter of the retard roll 2, and is rotated at a position close to the outer peripheral surface 2a of the retard roll 2 at the same speed as the retard roll 2 and in the opposite direction (direction of arrow L). It is being done. The other winding roll (hereinafter referred to as the second winding roll) 14
The diameter of the winding roll 14 is considerably smaller than that of the first winding roll 4, and the second winding roll 14 is installed close to the outer peripheral surface 4a of the first winding roll 4. Note that the outer peripheral surface of this second winding roll 14 is similar to that of the first winding roll 14.
The winding roll 4 is rotated at the same peripheral speed and in the same direction (in the direction of arrow L) with respect to the outer peripheral surface 4a of the winding roll 4. A web winding section 9 is located above between the first and second winding rolls 4 and 14.
is formed. The presser roll 15 is provided at the tip of the swing arm 16, and the presser roll 1
5 is designed to be able to swing toward and away from the web winding section 9.

On the first winding roll 4, each fixed-length web X, A vacuum device 13 is provided to sequentially transfer and adsorb onto the outer peripheral surface 4a of the first winding roll 4. This vacuum device 13 is configured by providing a total of six suction holes 13a to 13f at equal intervals in the circumferential direction of the first winding roll outer peripheral surface 4a. Moreover, this vacuum device 13 has a first
A suction action is performed within an angular range α 3 from a position E in the rotational direction immediately before the position close to the retard roll outer peripheral surface 2a to a position F corresponding to the web winding device 9 on the winding roll outer peripheral surface _4a , The suction action is stopped within the other angular range β ₃ (angular range from position F to position E in the rotational direction). Also, among the suction holes 13a to 13f of the vacuum device 13 on the first winding roll 4 side, every other suction hole (for example, 13a, 13c, 13e) is the same as each suction hole 12a, 12b on the retard roll side. , 12c, respectively. Therefore, when the web roll manufacturing apparatus Z ₁ is in operation, the suction hole (for example, reference numeral 12c in FIG. The suction hole (suction hole) is stopped, and the suction hole (for example, the suction hole 13a in FIG. 1) of the vacuum device 13 on the side of the first winding roll is suctioned. 2 and the first winding roll 4, the leading side end Xa of each regular length web X, The regular length webs X, X, . . . are sequentially transferred to the web winding device 9 side.

The web winding unit 9 is configured so that the winding cores Q are automatically supplied one by one while the continuous web W is being fed out from the raw roll P and each roll and each device are stopped. It's summery. In addition, the winding core Q
As the feeding method, the method used in conventional web roll manufacturing equipment (for example, toilet paper manufacturing equipment) can be adopted as is.

In addition, the web feeding device 20, the web roll 1,
The web cutting device 5, retard roll 2, web winding device 3, etc. are driven using a single motor (not shown) and several transmissions, and the motor is powered on. By controlling the above, all the devices can be operated or stopped at the same time.

The web roll manufacturing apparatus _Z1 of this first embodiment is as follows:
When the operation is started, a continuous web W is unwound from the raw roll P, and a predetermined length M is sequentially cut from the leading end of the continuous web W onto the outer peripheral surface 1a of the bed roll by the web cutting device 5. The length web X is cut at a time. Each of the standard length webs X, X...
is transported forward in the web running direction while being adsorbed on the bed roll outer peripheral surface 1a, and is attracted and transferred to the retard roll outer peripheral surface 2a side at a position close to the retard roll, but at this time, the bed roll outer peripheral surface 1a and the retard roll are Due to the difference in circumferential speed with the outer circumferential surface 2a, the trailing side end of the leading side regular length web
Leading side end Xa of trailing side regular length web X inside Xb
The end portions Xa and Xb of both the leading and trailing length webs X and X are overlapped with each other. Each of the regular length webs X,
... are sequentially transferred and adsorbed onto the outer circumferential surface 4a of the first winding roll 4, and then sequentially wound around the winding core Q from the leading end in the web winding section 9. . At this time, the leading end Xa of the trailing set length web X is overlapped by a predetermined length N inside the trailing end Xb of the leading set length web X (sandwiched). )
Therefore, each of the regular length webs X, X, etc. can be wound one after another without being easily separated.
In the web winding section 9, when a predetermined number of webs X of a fixed length are wound around the winding core Q (for example, counted by a counter), the energization of the motor is controlled in response to the signal, and the web X is continuously wound. The feeding of the web W, each roll and each device are stopped immediately, the web roll formed in the web winding section 9 is discharged from the web winding section 9, and a new web roll is then transferred to the web winding section 9. The winding core Q is now supplied. When a new winding core Q is supplied to the web winding section 9, the motor is energized in response to the signal, and the above-described operations are sequentially performed.

The long web roll manufactured by the web roll manufacturing apparatus Z ₁ of the first embodiment is cut into desired product dimensions in a separate process to produce the web roll Y ₁ in the final product form as shown in FIG. It is formed.
The web roll _Y1 shown in FIG. 3 is formed by winding a monofilament web. Further, this web roll _Y1 is used by being attached to a web roll support stand 21 as shown in FIG. When taking out the standard length web X from this web roll _Y1 ,
By pinching and pulling out the winding trailing side end Xb of the fixed length web X at the winding end, the fixed length web X is unwound and separated from the web roll _Y1 side. In addition, when the standard length web X is separated from the web roll Y ₁ side, the winding trailing side end Xb of the next standard length web
By overlapping the ends of each standard length _web This makes it easier to unwind and unwind.

The web roll manufacturing apparatus Z ₂ of the second embodiment shown in FIG. The web winding device 3 is provided at the upper part for winding up the monofilament fixed-length web rows joined together into a roll. Monoplane fixed-length web row production line 3 with integrated left and right sides
Reference numerals 0 and 31 each include a web feeding device 20, a bed roll 1, a web cutting device 5, and a retard roll 2 having the same structure as in the first embodiment, and a fixed length on each side of the retard roll 2 on the lower side in the web running direction. It is configured to include web winding rolls 4 and 34 for closely adhering and joining the web rows to each other. The production lines 30 and 31 for manufacturing monofilament regular length webs are installed such that members of the same type are arranged symmetrically with each other.
In this embodiment, a web winding device 3 is provided on the downstream side in the web running direction of one (left) monofilament fixed-length web production line 30, and the The web winding roll 4 acts as a winding roll.

The outer circumferential surface 4a of the winding roll 4 on the left monofilament fixed-length web production line 30 side and the outer circumferential surface 34a of the web winding roll 34 on the right monofilament fixed-length web production line 31 side are close to each other or in contact with each other. It is installed in the same position. Further, the winding roll 4 and the web winding roll 34 are each provided with vacuum devices 13 and 35 having a total of six suction holes. The vacuum device 35 on the side of the web winding roll 34 is set so that the suction action is stopped from the operating state at approximately the same position H as the position where the winding roll outer circumferential surface 4a closely corresponds. The vacuum device 13 on the winding roll 4 side is set so that the suction action is stopped from the operating state at a position J that corresponds to the web winding section 9 after the web winding roll outer circumferential surface 34a has passed the position corresponding to the adjacent web winding roll 4. ing. In addition, in each vacuum device 11, 12, 13, 35 used for each roll ₁ , ₂ , 4, ₃₄ in the web roll manufacturing apparatus _Z2 of FIG. The angular range denoted by α ₄ indicates the part where the suction action takes place, while the sign β ₁ ,
The angular ranges β ₂ , β ₃ , and β ₄ indicate the portions where the suction action is stopped.

In the web roll manufacturing apparatus Z ₂ of this second embodiment, monofilament regular length web row manufacturing lines 3 on each side
0 and 31, respectively (the ends of each of the fixed length webs X and and the outer circumferential surface 34a of the web winding roll 34 to bring them into close contact with each other, and the biplane regular length web row is guided to the winding roll 4 side and sequentially wound in the web winding section 9 from the tip side. By winding the web around the core Q, it is possible to manufacture a web roll Y ₂ consisting of a biplane regular length web as shown in FIG. The web roll Y ₂ made of biplane web shown in FIG. 6 has each web on the trailing side end Xb of the biplane regular length web
Leading side end of biplane regular length web X on the trailing side of winding
Xa' is polymerized by a predetermined length N, and the polymers are successively sandwiched from both sides. This biplane type web roll _Y2 also functions in the same way as the monoplane type web roll _Y1 (FIGS. 3 and 4).

(Effect of the invention) The web roll manufacturing apparatus of the invention sequentially rolls out the continuous web W from the original roll P to a predetermined length M.
A process of cutting the standard length webs X, There is an effect that all the steps for manufacturing a web roll (made by sequentially winding the regular length webs X, X), such as the step of winding up the regular length webs X, In addition, when taking out the web from the web rolls Y ₁ and Y ₂ manufactured by this web roll manufacturing apparatus, the web on the front side (end of roll) is simply unwound from the web roll, and no web cutting operation is required. It is possible to separate and take out a web of a predetermined length M without having to carry out any steps, and the web taking-out action can be performed easily.Moreover, the edges of the taken-out standard length web are neatly aligned in a straight line. This has the effect of improving appearance.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a web roll manufacturing apparatus according to a first embodiment of the present invention, FIG. 2 is a state change diagram of FIG. 1, and FIG. 3 is a diagram of a web roll manufacturing apparatus manufactured by the web roll manufacturing apparatus of FIG. 1. A perspective view of the web roll, Figure 4 is the third
A perspective view showing the state of use of the web roll shown in Fig. 5.
The figure is a schematic view of a web roll manufacturing apparatus according to a second embodiment of the present invention, FIG. 6 is a perspective view of a web roll manufactured by the web roll manufacturing apparatus of FIG. 5, and FIG. 7 is a conventional web roll. FIG. 1...Bed roll, 1a...Outer peripheral surface, 2...
Retard roll, 2a... outer peripheral surface, 3... web winding device, 4... winding roll, 4a...
...Outer peripheral surface, 5... Web cutting device, 11, 12,
13...Vacuum device, P...Material roll, Q
... Winding core, W ... Continuous web, X ... Regular length web, Xa, Xb ... Ends.

Claims (1)

[Scope of utility model registration request] A bed roll 1 is provided for winding the continuous web W unwound from the raw roll P, and the continuous web W is sequentially cut into regular length webs X, X, etc. each having a predetermined length L on the outer circumferential surface 1a of the bed roll 1. a web cutting device 5 for cutting the web, which is located on the web running direction side of the web cutting position on the bed roll outer peripheral surface 1a, is brought close to the bed roll outer peripheral surface 1a, and is cut at a peripheral speed lower than the peripheral speed of the bed roll outer peripheral surface 1a; Moreover, the retard roll 2 is rotated in a direction opposite to the rotation direction of the bed roll, and each fixed length web X, which is located close to the outer peripheral surface 2a of the retard roll 2,
A winding roll 4 constituting a part of the web winding device 3 that functions to wind up the web X into a roll shape is provided, and the bed roll 1 is equipped with a winding roll 4 which is a part of the web winding device 3 that functions to wind up the web X into a roll shape. Vacuum device 11 for forwarding the web in the running direction while adsorbed onto the surface 1a
The retard roll 2 is provided with a vacuum device 12 for transferring and adsorbing the regular length web X adsorbed on the outer circumferential surface 1a of the bed roll onto the outer circumferential surface 2a of the retard roll, and the winding roll 4 is provided with a vacuum device 12 for transferring and adsorbing the regular length web Said retard roll outer peripheral surface 2
A vacuum device 13 for transferring and adsorbing the fixed length web X onto the winding roll outer circumferential surface 4a is provided, and the web X is cut into predetermined lengths M on the winding roll outer circumferential surface 1a. After sequentially superimposing the end portions Xa and Xb of the adjacent regular length webs X, X by a predetermined length N each other on the outer peripheral surface 2a of the retard roll, A web roll manufacturing apparatus characterized in that it is configured to be able to be transferred onto the outer circumferential surface 4a of a dewing roll and sequentially wound into a roll in a web winding section 9.