JPH0453532B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a rolled wet towel manufacturing apparatus that sprays water onto a sheet material from a water sprinkling means to impart moisture necessary for the wet towel to the sheet material. The present invention relates to a water sprinkling method capable of forming accurate folds with aligned leading edges of a sheet material by sprinkling water intermittently.

BACKGROUND OF THE INVENTION In coffee shops, restaurants, and other eating and drinking establishments, ``wrapped towels'' (wrapped towels) are provided as a customer service. Because this type of facility uses a large amount of "wrapped wet towels" per day, most of the towels are currently supplied by wet towel manufacturers. However, while ``rolled wet towels'' made of towel cloth can be used repeatedly, they not only have the problem of being extremely unsanitary if the recycling process is incomplete, but also have the drawback of increasing costs.

Therefore, the applicant of this case has been working diligently to develop a compact rolling towel manufacturing device that can make inexpensive and disposable "wrapped towels" made of paper or non-woven fabric at home, and has filed multiple utility model registration applications. Summer. The rolled wet towel manufacturing apparatus according to these applications can fully automatically and efficiently manufacture a "wrapped wet towel" in which a sheet material made of paper or nonwoven fabric is wound into a roll.

The manufacturing apparatus is equipped with a water sprinkling pipe having a plurality of water sprinkling holes drilled in the vicinity of the feeding route of the sheet material as a means for imparting moisture necessary for wet towels to the sheet material pulled out from the sheet roll. . Then, at the required timing when the sheet material arrives at the front side of the water sprinkling pipe, water is continuously sprinkled from the pipe for a predetermined period of time, thereby imparting the required moisture to the sheet material.

Problems to be Solved by the Invention In the above-mentioned rolled wet towel manufacturing apparatus, in order to reliably roll up the sheet material cut to a predetermined length,
A folded portion is formed by folding the sheet material twice at the leading end of the sheet material, which is the starting end of the winding, and the sheet material is rolled up into a roll using this folded portion as a core.

Here, the sheet material whose paper is made of nonwoven fabric is
When it does not contain water, it is difficult to create creases, but when it contains water, it has the property of being able to create creases easily. However, in the above device, since water is sprayed over the entire sheet material including the folded portion, it is easy to create a crease, but the crease is not easily formed in the sheet material as shown in FIG. 7a. Sometimes it is attached diagonally in the width direction. In this case, when the sheet material is rolled up into a roll with the folded portion as the core, the sheet material is rolled up into a so-called "bamboo shoot" shape as shown in FIG. 7b, which has the disadvantage of poor appearance.

Purpose of the Invention The present invention has been proposed in view of the above-mentioned problems and to suitably solve the problems. The purpose is to provide a means for manufacturing ``.

Means for Solving the Problems In order to overcome the above-mentioned problems and suitably achieve the intended purpose, the present invention cuts a sheet material drawn and supplied from a supply source into a predetermined length using a cutting mechanism, and cuts the sheet material as required. In the wet towel manufacturing apparatus, the sheet material is sprayed with water by the water sprinkling means, and then the sheet material is supplied with a folded end formed at the tip thereof to a rolled wet towel manufacturing unit, where the sheet material is rolled up into a roll. The first water sprinkling is performed for a predetermined time at the timing when the scheduled turning point of the sheet material arrives in front of the sheet material, and the second water sprinkling is then started after the elapse of a predetermined time.

Embodiments Next, the water sprinkling method of the rolled wet towel manufacturing apparatus according to the present invention will be described below with reference to preferred embodiments and the accompanying drawings. In addition, since the present invention relates to a water sprinkling method for a rolled wet towel manufacturing apparatus, in order to contribute to the understanding of the present invention, the schematic configuration of the rolled wet towel manufacturing apparatus will first be explained (About the schematic configuration of the rolled wet towel manufacturing apparatus) FIG. 1 is a longitudinal cross-sectional view of a rolled wet towel manufacturing device in which the water sprinkling method according to the present invention is suitably carried out. A storage section 12 that opens upward is formed in the device main body 10 formed in a rectangular shape. Part 12
For example, a sheet material 14a made of non-woven fabric is used.
A sheet roll 14, which is wound in a roll shape around a paper tube serving as a core, is housed so as to be freely rotatable.
In addition, a water tank 18 for supplying water to a watering pipe 16, which will be described later, is detachably stored in the storage portion 12. will be pumped to.

On the left side of the storage section 12, a feed roller 20 is rotatably installed between a pair of side plates 10a, 10a (only one is shown) constituting the main body 10, and the roller 20 is connected to a drive motor (not shown). It is designed to be rotated counterclockwise through the Further, a plurality of O-rings 22 protruding outward in the radial direction are wound around the feed roller 20 at predetermined intervals in the axial direction.
It functions to prevent the roller from slipping on the roller. In addition, on the opposite side of the storage section 12 with the feed roller 20 in between, the both side plates 10a, 10a are provided.
A presser plate 24 is rotatably supported in between. The holding plate 24 is normally pressed against the O-ring 22 of the feed roller 20 by a torsion spring 26, and the sheet material 14a pulled out from the sheet roll 14 is held between the O-ring 22 and the holding plate 24. It is configured to be fed in a pinched state.

As shown in FIG.
A fixed blade bracket 30 having a fixed blade 28 disposed between a is arranged parallel to the width direction of the sheet material 14a. Further, on the opposite side of the fixed blade bracket 30 across the sheet material 14a, there is a rotary blade mounting roller 3 extending parallel to the fixed blade bracket 30.
2 is rotatably supported, and a rotary blade 34 is disposed on this roller 32. Therefore, the sheet material 14a passing between the fixed blade bracket 30 and the rotary blade mounting roller 32 can be moved between the rotary blade 34 and the fixed blade 28 by rotating the rotary blade mounting roller 32 in a predetermined direction. Cut widthwise under interlocking action. Note that the shaft 36 of the rotary blade mounting roller 32 is configured to be rotationally driven in synchronization with the feed roller 20 by the drive motor.

Further, as shown in FIG. 3, a cam 38, which will be described later, is provided at the end of the shaft 36 of the rotary blade mounting roller 32 protruding from one side plate 10a so as to be able to rotate integrally with the shaft 36. By detecting the rotation of the cam 38 by two detection means S ₁ and S ₂ (described later), the operation of the manufacturing apparatus including the water sprinkling timing is controlled.

A rolled wet towel manufacturing section 40 is disposed below the fixed blade bracket 30, and the rotary blade 34
The sheet material 14a, which is cut into a required length by a cutting mechanism consisting of a fixed blade 28, is supplied to the rolled wet towel manufacturing section 40, where it is rolled into a roll having a desired diameter to become a "wrapped wet towel". As shown in FIGS. 1 and 2, the rolled wet towel manufacturing section 40 has a water supply system that functions to guide the sheet material 14a hanging down from the cutting mechanism to the manufacturing section 40 and to receive water from the sprinkler pipe 16. A plate 42 is provided.

As shown in FIG. 2, the water tray 42 consists of a vertical back plate 42a and a plurality of ribs 42b arranged at appropriate intervals in the longitudinal direction of the back plate 42a.
The lower end portion of this rib 42b bulges to the left, and the bulged end portions of each rib 42b are connected by a dam member 42c. Note that the water tray 42 also has the function of forming a fold at the tip (hanging end) of the sheet material 14a. That is, the lower end of the sheet material 14a that is supplied hanging down from the feed roller 20 is
By coming into contact with the bulge of the sheet material 14b and restricting its movement, the portion of the sheet material 14a above a predetermined height from the lower end is bent, thereby forming a folded portion, as shown in FIG. 5b. be done.

As shown in FIG. 2, the water sprinkling pipe 16 is removably installed between both side plates 10a, 10a on the front side of the water tray 42. As shown in FIG. The water pipe 16 is provided with a plurality of water holes 16a pointing toward the water tray 42, and water pumped from the water tank 18 through the pump 19 through the water holes 16a is directed to the back plate 42a of the water tray 42. Water is sprinkled towards the target. This results in
On the sheet material 14a hanging from the feed roller 20 and located in front of the back plate 42a in the water tray 42,
It provides the necessary moisture as a wet towel. Furthermore, by impregnating the sheet material 14a with water,
The folded portion can be easily formed by making the sheet material 14a flexible.

(Regarding control means for watering timing) As explained above, in the rolled wet towel manufacturing apparatus, the sheet material 14a is sprayed and supplied with a required amount of water from the watering pipe 16.
In addition to imparting moisture necessary for a wet towel to a, the folded portion can be easily formed. Therefore, in the illustrated embodiment, the timing of water sprinkling from the water sprinkling pipe 16 is controlled by a cam 38 that rotates integrally with the shaft 36 of the rotary blade mounting roller 32. In addition, as a control means,
This is not limited to a cam, but can also be performed by detecting the position of the sheet material with a detection means, or by using a timer.

As shown in FIG. 3, the disc-shaped cam 38 disposed on the shaft 36 of the rotary blade mounting roller 32 has five cam parts 44, 46, 48, 50, 52 on its outer peripheral surface.
is formed. That is, on the outer peripheral surface of the cam 38, a first cam portion 44 with a radius r ₁ , a second cam portion 46 and a fourth cam portion 50 with a radius r ₂ , a third cam portion 48 and a fifth cam portion with a radius r ₃ are formed. These cam portions 44, 46, 48, 50, and 52 are formed such that their radii satisfy the relationship r ₁ > r ₂ > r ₃ . Further, the second cam portion 46, the third cam portion 48, the fourth cam portion 50, and the fifth cam portion 52 are connected to the cam 38.
located adjacent to the counterclockwise direction. In addition,
The first cam part 44 is on the second cam part 46,
It is provided at a position close to the side plate 10a.

In a portion of the side plate 10a close to the cam 38,
A first detection means S ₁ and a second detection means S ₂ are arranged,
The detection pieces 54 and 56 are configured to resiliently abut against the outer peripheral surface of the cam 38. Also the first
The detection piece 54 of the detection means S ₁ is provided at a position where it can come into contact with the first cam portion 44 formed on the outer peripheral surface of the cam 38, and the detection piece 56 of the second detection means S ₂ is
It is positioned so as not to come into contact with the first cam portion 44. Then, due to the rotation of the cam 38, each cam portion 44, 46, 48, 50, 52 detects each detection piece 54,
56, each detection means S ₁ , S ₂
performs on and off operations. As this detection means, a micro switch which switches contacts by operating a detection piece is preferably used. In addition, in the operation standby state of the rolled wet towel manufacturing apparatus, the detection piece 54 of the first detection means S ₁ is in contact with the first cam part 44 , and the detection piece 56 of the second detection means S ₂ is in contact with the second cam part 4 .
6 (the state shown in FIG. 4a).

Here, for example, the first detection means _S1 is turned off when the detection piece 54 is pressed by the first cam part 44 of the cam 38, and the detection piece 54
It is set to turn on when you move away from it. That is, the first detection means S ₁ functions to engage only the first cam portion 44 of the cam 38 to detect that the cam 38 has made one revolution.

Further, the second detection means _S2 is turned off when the detection piece 56 is pressed by the second cam part 46 and the fourth cam part 50 of the cam 38, and the detection piece 54 is in the third
It is set to be in the on state while facing the cam portion 48 and the fifth cam portion 52. While the detection piece 56 of the second detection means S ₂ faces the third cam part 48 and the fifth cam part 52,
The pump 19 is energized and water is sprayed onto the sheet material 14a via the water sprinkling pipe 16. Note that the ON and OFF operations of the first detection means S ₁ and the second detection means S ₂ may be reversed to the above-mentioned settings, and can be handled by simply changing the control circuit (not shown).

Effects of the Embodiment Next, the effects of the water sprinkling method of the rolled wet towel manufacturing apparatus according to the embodiment will be explained in relation to the apparatus that implements the method.

First, when manufacturing a "wrapped wet towel", the leading end of the sheet material 14a is pulled out from the sheet roll 14 stored in the storage section 12, and is interposed between the feed roller 20 and the presser plate 24. At this time, as shown in FIG. 4a, the detection piece 54 of the first detection means _S1 is located on the first cam 44 of the cam 38,
The detection piece 56 of the second detection means S ₂ is located on the second cam portion 46 of the cam 38 .

In this state, when you press the manufacturing button (not shown) for the "wrapped wet towel", the drive motor (not shown)
starts, and the feed roller 20 rotates counterclockwise. As a result, the feed roller 20 and the presser plate 2
The sheet material 14a held between the sheet rollers 4 and 4 is pulled out from the sheet roll 14 and fed vertically downward as the feed roller 20 rotates (see FIG. 1).
Further, the rotary blade mounting roller 32 starts rotating clockwise, and as shown in FIG. 4b, the first detection means
The first cam portion 44 of the cam 38 is separated from the detection piece 54 of S ₁ and the first detection means S ₁ is turned on (the cam 38 rotates counterclockwise in FIG. 4).

As the drive motor continues to rotate, the sheet material 1
4a is fed downward by a predetermined length, passes through the gap defined between the fixed blade 28 and the rotary blade mounting roller 32, and hangs down to the surface of the water tray 42 (see FIG. 5a). . Then, as shown in Figure 4b,
The detection piece 56 of the second detection means S ₂
When facing the cam portion 48, the second detection means _S2 is turned on, thereby driving the pump 19 to forcefully feed water from the water tank 18 to the water sprinkling pipe 16, and through each water sprinkling hole 16a to the sheet material 14a. Water is sprinkled on the required areas (folds).

When the cam 38 further rotates, the detection piece 56 of the second detection means _S2 moves from the third cam part 48 to the fourth cam part 50, as shown in FIG.
_S2 is turned off again. As a result, the operation of the pump 19 is stopped, and the water sprinkling on the sheet material 14a is interrupted. As shown in FIG. 5b, the hanging end of the sheet material 14a fed by the feed roller 20 is located at the lower bulge of the rib 42b of the water tray 42, and its movement is restricted, so that the water sprinkling is prevented. The bent portion bends and falls in the direction away from the water tray 42. That is, at this time, the sheet material 1
Since water is only partially supplied to 4a,
In the water-containing area, the sheet material 14a
As shown in FIG. 6a, the edges are accurately bent with their ends aligned.

Next, when the cam 38 is further rotated by the required angle, the detection piece 56 of the second detection means S ₂ is opened as shown in FIG. 4d.
faces the fifth cam portion 52, and water sprinkling on the sheet material 14a is started again (see FIGS. 5c and 5d).
Further, the rotary blade 34 disposed on the rotary blade mounting roller 32 comes into contact with the fixed blade 28, and the double blades 28, 3
The sheet material 14a located between 4 is cut. When the sheet material 14a is cut to a predetermined length, the upper part of the sheet material 14a collapses in a direction away from the water tray 42, and is supplied to the rolled wet towel manufacturing section 40. At this time, since the leading edge of the sheet material 14a in the feeding direction is accurately folded as shown in FIG. As shown in the figure, it is rolled up into a neat roll. Furthermore, since sufficient water can be supplied to the rear end of the sheet material 14a, it is possible to prevent the rolled-up wet towel from unwinding.

Further, the cam 38 rotates, and the first detection means S ₁
When the detection piece 54 faces the first cam portion 44, the detection means _S1 is turned off and detects that the cam 38 has rotated once. Further, at this time, since the detection piece 56 of the second detection means _S2 faces the second cam portion 46, the water sprinkling on the sheet material 14a is stopped.

In addition, in the embodiment, the case where the second water sprinkling on the sheet material 14a is continuously performed has been described, but the present invention is not limited to this, and for example, the second water sprinkling may be performed intermittently. good. In this case, the amount of water to be sprinkled on the sheet material 14a can be adjusted by adjusting the timing of discontinuation.

Effects of the Invention As explained above, according to the water sprinkling method of the rolled wet towel manufacturing apparatus according to the present invention, by intermittently sprinkling water on the sheet material, it is possible to form accurate folds with aligned tips on the sheet material. can. Therefore, it is possible to produce a "rolled wet towel" that rolls up neatly.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a rolled wet towel manufacturing apparatus in which the water sprinkling method according to the present invention is suitably carried out, and FIG. 2 is a schematic perspective view showing the main parts of the manufacturing apparatus shown in FIG. 1.
Fig. 3 is a side view of the main part of the manufacturing device showing a cam that controls water spray tamming, and Figs. Figures 5 a to d are explanatory diagrams showing the state of watering over time in the manufacturing process of rolled wet towels, and Figure 6 a is an explanatory diagram showing the state of watering over time in the manufacturing process of rolled wet towels. An explanatory diagram of a sheet material, FIG. 6b is an explanatory diagram showing a state in which the sheet material shown in FIG. 6a is wound into a roll,
FIG. 7a is an explanatory view of a sheet material whose leading end is folded back diagonally, and FIG. 7b is an explanatory view showing a state in which the sheet material shown in FIG. 7a is wound into a roll. 14a...sheet material, 16...watering pipe, 2
8... Fixed blade, 34... Rotating blade, 40... Rolled towel manufacturing department.

Claims (1)

[Claims] 1. Sheet material 14a drawn and supplied from a supply source
The sheet material 1 is cut into a predetermined length by the cutting mechanisms 28 and 34, and the sheet material 1 is cut into a predetermined length by the required watering means 16.
After spraying water onto the sheet material 14a, the tip of the sheet material 14a is folded and supplied to the rolled wet towel manufacturing section 40, where the sheet material 14a is rolled up into a roll. Watering in a rolled wet towel manufacturing apparatus characterized in that the first watering is performed for a predetermined time at the timing when the scheduled turning point of the sheet material 14a arrives, and then the second watering is started after a predetermined time has elapsed. Method.