JPS63252877A - Wet towel making device - Google Patents

Abstract

PURPOSE:To have sure automated operations by equipping a towel folding device with a seam position matching mechanism, and by supplying two-folded towels to a towel takeup device from the side of the seam by the use of a flow attitude head changing device. CONSTITUTION:Each towel spread T<1> is transported by conveyor belts 12, 14 arranged on the left and right, and between them, a space 16 is provided to allow insertion of two-folded towels. The towel transported T<1> is controlled by sensors 20a, 20b of the belts 12, 14 on the right and left in transport direc tion, which are driven individually, wherein the fold position is aligned, and folded in two into the space 16 by a guide member 26 of a two-folding device 22. Each two-folded towel T2 is transported with its fold situated ahead on an elevating/sinking conveyor 42, which then sinks, and further transported by another conveyor 50 with the side place ahead to the inlet to a takeup de vice. This ensures that towel is folded in two certainly, taken up in proper attitude, and that automation is facilitated.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention involves folding a wet towel in half, rolling the folded towel in half from the side of the fold, and rolling it up into a roll. The present invention relates to a wet towel manufacturing device that wraps a towel in a synthetic resin film in a -C manner, and is particularly designed so that the accurately folded towel can be fed from the side of the fold to a towel winding device for the next process. .

<Prior Art> A wet towel manufacturing device usually has the following configuration.

In other words, between a running surface made of an endless conveyor belt or the like that runs in one direction and a friction cover member provided with a friction surface made of a rubber material or the like provided opposite to this running surface, the belt is folded in two in advance. Feed the towel from the side of the fold,
A towel winding device capable of winding up a bifold towel transported along the running direction of the running surface into a roll via the frictional force of the friction surface, and a roll rolled up by the towel winding device. The present invention is comprised of a film packaging device which can tightly wrap towels one by one using a belt-shaped synthetic resin film fed out from a film holding roller through welding means and cutting means.

In such a wet towel manufacturing apparatus, there are two types of means for folding the towel to be rolled up into the towel winding device in advance and feeding it from the side of the fold line: a manual method and an automated method.

Among these methods, the manual method involves installing a towel placing section that extends the endless conveyor belt of the towel winding device in the opposite direction to the running direction, and manually placing towels one by one on this towel placing section. While folding it in half, it must be placed on the running belt with the side of the fold accurately facing the belt running direction. This work is extremely difficult, and there is no way to accurately fold it in half and place it on the belt. The reality is that we cannot expect that.

On the other hand, as an automated system, for example,
A wet towel manufacturing apparatus disclosed in Japanese Patent No. 2760-1 is known. This wet towel manufacturing device is equipped with a belt that extends backward from the end of the belt in the middle of a wide conveyor, and the end of the belt faces the entrance of the wet towel winding device. By placing the towel spread out, the towel is folded in half on the belt, and in this state is supplied to the wet towel winding device. However, the following disadvantages are pointed out in this device. In other words, in order to obtain a towel with an accurate bifold shape, it is necessary to place the towel on the running belt and conveyor so that the center line along the flow direction of the towel coincides with the belt line. Accurate placement work is extremely difficult, and accurate placement work can never be expected.

<Problems to be solved by the invention> The present invention was developed in view of the above circumstances, and the problems to be solved are as follows:
To provide an automated wet towel manufacturing device capable of folding the towel in half and accurately feeding the folded towel from the side direction of the fold to a towel winding device in the next step.

Means for Solving the Problems> In order to achieve the above object, the towel manufacturing apparatus of the present invention includes a towel bifolding device equipped with a towel fold position alignment mechanism, and a towel forming device that is folded into two by the towel bifolding device. The towel flow orientation and direction changing device is capable of supplying the folded towel in half from the side direction of the fold to the entrance of the towel winding device for the next step.

The towel folding device includes a pair of conveyor belts that run in the same direction and are arranged oppositely with a slight retraction gap in the running direction, and are disposed above the retraction gap, and are disposed above the retraction gap. and a crease forming guide member capable of extending its tip along the section to form a crease in the spread towel, and each of the conveyor belts has a crease forming guide member that extends its tip along the section and forms a crease in the spread towel. It is formed by left and right conveyor belts that are separated and driven independently, and this folding line is formed at a position where a desired fold position perpendicular to the flow direction of the spread towel transported by the left and right conveyor belts is aligned with the gap. The alignment position is detected by first towel position detectors provided corresponding to the left and right conveyor belts, respectively, and the towel fold position can independently stop and control the traveling drive of the left and right conveyor belts corresponding to each detector based on the detection command. The fold forming guide member is provided with an alignment mechanism, and controls the fold forming guide member to move in the advancing direction when the fold position of the spread towel is aligned with the gap and the aligned positions are detected by the respective detectors. The structure is configured such that each conveyor belt can be driven in the direction of the gap so that the towel can be pulled in from the direction of the fold, and the direction of the towel flow can be changed. The device is capable of transporting the two-folded towel supplied from the two-folding device along the folding direction thereof, and the transport direction side thereof is provided between a group of endless conveyor belts I, which is constructed by a group of lifting rolls, and the endless belt group. a group of transport rollers installed in the gap so as to be able to rotate orthogonally to the running direction of the group of endless belts, and whose two surfaces are normally located below the transport surface of the group of endless belts; When the two-folded towel transported along the running direction of the endless belt group is located above the transport roll group, this position is detected by a second towel position detector, and this detection command causes the endless belt group to run. The operation is controlled to stop, and the lifting roll group is moved downward to displace the transport surface of the endless belt group installed on the lifting roll group downward relative to the upper surface of the roller of the conveying roller group. the towel is configured to be able to transfer the bifold towel onto the group of conveying rollers in a stopped posture position, and the towel flow posture direction changing device transfers the bifold towel whose fold side direction is directed toward the flow direction of the group of conveying rollers. A towel winding device comprising a running surface that runs in the same direction as the transport direction of a group of conveying rollers 11, and a friction surface that is opposed to the running surface with a gap such that a two-folded towel can be rolled up along the running direction of the running surface. It is characterized by being configured so that it can be supplied to the inlet of the device.

In addition, in order to achieve the objective of picking up towels, another wet towel manufacturing apparatus of the present invention uses this towel flow posture direction changing device instead of the multi-layered towel flow posture direction changing device. A pel is attached to the supply position of the bifold towel so that the bifold towel can be transferred along the folding direction, and one end of the bifold towel along the transfer direction can be transferred with one end protruding from the belt side edge. 1 - A conveyor belt arranged with its running surface shifted to one side, and a side end of the belt so that the bifold towel transferred by the conveyor belt can be pulled out and transferred in a direction perpendicular to the running direction of the conveyor and in a direction opposite to the conveyor. It consists of a pair of pull-out rollers that are arranged oppositely with a protruding part of the two-folded towel protruding from the holder, and when the conveyor runs, the pull-out rollers are arranged in a spaced apart state, and the protruding part of the towel is placed between the pull-out rollers. When the traveling operation of the conveyor belt is controlled to be stopped by a detection command of a second towel position detector capable of detecting the position of the transferred towel, the second towel is moved from the separated position to a pressure contact position capable of pinching the protruding part of the towel. The folded towel is configured to be able to be pulled out and transferred in a direction perpendicular to the running direction of the conveyor and in a direction opposite to the conveyor via a pull-out roller at a stopped position, and this towel flow direction changing device allows the folded towel to be transferred with the folded side direction at the top. One scoop of the bifold towel transferred is placed between a running surface that runs in the same direction as the pulling direction of the pull-out roller and a gap such that the bifold towel can be rolled along the running direction of the running surface. The invention is characterized in that it is configured such that it can be supplied to the inlet of the towel wrapping device, which has friction surfaces facing each other.

<Example> Hereinafter, an example of the wet towel manufacturing apparatus of the present invention will be described based on the drawings.

In FIGS. 1 and 2, reference numeral 10 denotes a towel folding device, and the towel folding device 10 is generally composed of a pair of conveyor belts 12, 14 and a fold forming guide member 22, which will be described later.

As is clear from FIG. 1, the pair of conveyor belts 12 and 14 are run slightly diagonally in the -L direction along the transport direction of the spread towel T1, and are slightly tilted along the transport direction of the spread towel T1. They are arranged opposite to each other in series with a lead-in gap 16 in between. The pull-in gap 16 is formed so that a towel folded in two can be pulled in and compressed by the opposed surfaces of the conveyor belts 12 and 14 facing each other. The conveyor belt 12.14 is equipped with a towel fold position alignment mechanism, which will be explained below.As is clear from FIG. The left conveyor belts 12a, 14a and the right conveyor belt 12 are divided into left and right sides, respectively, with the center line along the flow direction of `` as the border.
b, 14b.

And these left and right conveyor belts 12a.

14a, 12b, and 14b are constructed so that they can be independently driven. That is, these left and right conveyor belts 12a, 14a.

12b and 14b are different drive rollers 13
a, 13b, 15a, 15b, these drive rollers 13a, 13b, 15a
.

], 5b, and are configured to be independently driven by four step motors 18a, 18b, 18c, and 18d connected in correspondence with each other. In addition, the symbols 13c, 13d, and 15c.

15d is the left and right conveyor belt 12a, 14a, 12
b, the construction roller that constructs 14-b.

The left and right conveyor belts 12a and 14a are configured to be able to run and drive independently in this manner.

12b and 14b are the desired fold positions perpendicular to the flow direction of the spread towel T1 transferred by these left and right conveyor belts, that is, the left and right positions of the center line perpendicular to the flow direction of the spread towel T1, respectively. At the position aligned with the gap 16, left conveyor belts 12a, 14a and right conveyor belts 12a, 1 are installed so that the left and right ends of the spread towel T1 can be detected independently.
The eighteenth towel position detectors 20a and 20b, each consisting of a photoelectric sensor provided corresponding to the towel T1, independently detect that the light reception of the photoelectric element is obstructed by the left and right ends of the transferred spread towel T1. When detected,
Left and right conveyor belts 12a, 14a, 12b, 14 corresponding to each detector 20a, 20b
Each drive roller 13a, 13b, 15a that drives b.

Each step motor 18a is connected to 15b.

The rotations of the conveyor belts 18b, 18c, and 18d are each controlled to stop, and the running operation of each of the left and right conveyor belts is stopped. For example, in the case of a misaligned spread towel indicated by the symbol T'C in FIG. 20a detects the arrival of the left conveyor belts 1.2a, 14a, and the running operation of the left conveyor belts 1.2a, 14a is controlled to stop, but the right conveyor belts 12b, 14. b continues its travel independently until the arrival of the right end of the spread towel is detected by the other detector 20b corresponding to the right conveyor belt. As a result, the spread towel T1, which is in the misaligned position T1C where the retraction gap 16 and the fold position of the towel do not match, is corrected to the alignment position T''B where the retraction gap 16 and the fold position of the towel match. be able to.

By the way, if the fold position of the spread towel with respect to the retraction gap 16 is extremely misaligned and it is difficult to correct it to the alignment position T'B, for example, one side of the spread towel may be The allowable time from when the arrival of one tip is detected by the corresponding detector 20 until the arrival of the other tip is detected by the corresponding detector 20 is set, and when this allowable time is exceeded, are left and right conveyor belts 12a, 14a, i, 2b,
Both towels 14b may be driven in the initial towel transport direction and dropped from the terminal position of the conveyor belt 14 disposed on the terminal end side in the transport direction and removed.

The above-mentioned crease forming guide member 22 is connected to a pair of conveyor bells h12, 1.
4, and a crease forming guide whose base side is supported by the rod 25 of the air cylinder 24 and whose tip can move forward and backward along the gap line of the gap 16. The folding guide plate 26 is configured to be able to form a fold ``1'' on the spread towel T1 by moving the fold forming guide plate 26 in the advancing direction.

When the fold position of the spread towel and the pull-in gap 16 are aligned by the above-described towel fold position alignment mechanism, the spread towel is folded into two.
The folding means will be explained. The fold position of the expansion towel is aligned with the retraction gap 16 and each of the detectors 20a
.

2ob detects this aligned position, the fold forming guide plate 26 of the fold forming guide member 22 advances along the gap 16 as shown by the arrow in response to the command from each of the detectors 20a and 20b, and the expanded towel The conveyor belts 12 and 14 each run in six directions in opposite directions, such that the spread towel can be retracted from the direction of the fold along the fold. It is controlled so that it can be driven. In this way, the spread towel T1 placed at the alignment position T1B has a crease formed on its center line by the crease forming guide member 22, and the conveyor belts 12 are rotated in opposite directions from the crease portion. The belt is drawn into the pull-in gap 16 of .14 and pinched between the belt facing surfaces to form a two-fold shape.

Thus, the unfolded towel can be folded by the towel folding device 1-
O is used to fold the paper into a precise two-fold shape.

119= Note that the starting point side of the conveyor belt 12 on the near side with respect to the towel transport direction functions as a placing section 28 for the spread towel T1, and on this placing section 28 there is a A mounting table 29 like this is provided. A leading edge 29a of this mounting table 29 in the belt running direction is formed to be perpendicular to the belt running direction. When manually placing the spread towel on the conveyor belt 2 that is running, the first
As shown in the figure, place the rear end side of the expanded towel T1 on the mounting table 29.
By aligning the leading end 929 a of the mounting table 29 with the tip side picked up while placing the towel on the second towel, the hanging rear end side of the spread towel will come into contact with the conveyor belt 12 before the leading end side. In addition, it can be used as a guideline for determining the correct placement position, and in short, it can be expected that the placement work will be more accurate.

Bi-folded towel T2 formed in this way
The towels are sent to the towel flow attitude direction changing device 40 in the next step via the feeding conveyor 30 with the folded [1 direction being the top]. As shown in FIG. 1, the feeding conveyor 30 is connected to a pair of endless conveyor belts 31, 32 that run diagonally downward as shown by the arrows from directly below the gap 16 between the conveyor belts 12, 1.4. It has become. The belt 31.
32 are installed at such a distance that the two-folded towel T2 can be sandwiched and transferred between opposing belt surfaces. In FIG. 1, reference numeral 33 denotes a step motor for synchronously transporting and driving the feeding conveyor 30 and a group of endless belts of a towel flow attitude direction changing device 40, which will be described later.

Next, the towel flow attitude direction changing device 40 will be explained with reference to FIG. 3. This towel flow posture direction changing device 40
The endless belt group 42... and the conveyance roller group 50...
・It is generally composed of.

The endless belt group 42... is the feeding conveyor 30.
The starting end is installed on the construction roller 34 at the terminal end of the endless conveyor belt 31 arranged on the lower stage side, and the terminal end is installed on the elevating roll group 44... and runs horizontally as shown by the arrow in Fig. 1. . The lifting roll group 44 is integrally supported by a lifting rod 46 of a lifting device 45 shown in FIG. 3, and is moved up and down integrally.

Further, the conveyance roller group 50 is installed in a gap between the endless belt groups 42 so as to be able to rotate perpendicular to the flow direction of the endless belt groups 42. In the endless belt group 42, the upper surface of the roller is disposed below the transport surface of the endless belt group 42. Incidentally, the conveying roller group 50... is a drive belt 54 which is hung around the drive shaft of a drive motor indicated by reference numeral 52 in FIG.
Rotational driving force is applied via the drive belt 5.
4 is also applied to a drive roller 74 of an endless conveyor belt 72 that constitutes a running surface 73 of a towel winding device 70, which will be described later, so that the conveyance roller group 50 and the endless conveyor belt 72 rotate synchronously in the same direction. It is configured as follows.

The endless belt group 42... is the endless belt group 42.
When the two-folded towel T2 transported along the flow direction is positioned above the transport roller group 50 as shown in FIGS. 1 and 2, the position is detected by a photoelectric sensor. The second towel position detector 48 consisting of
- is configured to stop and control the driving of the step motor 33, which is the drive source of the endless belt group 42, and thereby to stop and control the conveying operation of the endless belt group 42, and according to the detection command of the detector 48. The elevating roller group 44 of the elevating device 45 is lowered to lower the elevating roll group 44 from the solid line position shown in FIGS. 1 to 3 to the imaginary line position. The conveying surface of the endless belt group 42 installed on... is the conveying roller group 50.
It is configured to be displaced downward relative to the upper surface of the roller. Therefore, the endless belt group 42.
The two-folded towel T2 placed on the transfer surface of .

In this way, the two-folded towel T2 transported by the feeding conveyor 30 with the fold direction at the top is changed by the towel flow attitude direction changing device 40 in a direction perpendicular to the previous flow direction and with the direction of the fold side facing. It will be transported first.

In this way, the towel flow attitude direction changing device 40 changes the fold side direction to the conveying roller group 50...
The two-folded towel -r2 oriented in the rotational direction is sent to the towel winding device 70 for the next step.

Here, before explaining the towel winding device 70 for the next step, the drawings of FIGS. 4 to 6 showing other embodiments of the above-mentioned towel flow attitude direction changing device 40 will be explained.

The towel flow attitude direction changing device 40 shown in FIGS. 4 to 6 is a conveyor belt 24=56 that transports the two-folded towel T2 supplied from the two-folding device 10 with its folding direction at the top. and a pair of pull-out rollers 60, 62 that can pull out the folded towel T2 transferred by the conveyor belt 56 from the side of the fold and transfer it in the pull-out direction.

To further explain the conveyor belt 56, as shown in FIG. 4, the conveyor belt 56 runs obliquely downward to the position directly below the retraction gap 16 of the two-folding device 10, that is, to the supply position of the two-folded towel T2. It is arranged to run horizontally with a feeding conveyor 30 consisting of a pair of endless conveyor belts 31 and 32 interposed therebetween.

In this way, the two-folded towel T2 supplied from the two-folding device 10 with the folding direction at the top passes through the nipping conveyor 30 and reaches a predetermined position on this conveyor belt 56 in the same direction, that is, with the folding direction at the top. Furthermore, as shown in FIG. 5, the conveyor belt 56 is fed so that one end side of the two-folded towel T2 along the transport direction protrudes from the belt side end 56a. It is characterized in that the pel 1 to the running surface are arranged to one side with respect to the supply position of the two-folded towel from the feeding conveyor 30.

In FIGS. 4 to 6, reference numeral 58 is disposed with its pel 1 to running surface facing the running surface of the conveyor belt 56, and runs in synchronization with the running operation of the conveyor belt 56. This is a guide belt configured to The guide belt 58 transports the folded towel T2 in a fixed state while being sandwiched between it and the running surface of the conveyor belt 56.

Further, the pair of pull-out rollers 60 and 62 are arranged at belt side ends so that the two-folded towel T2 transferred by the conveyor belt 56 can be pulled out and transferred in a direction perpendicular to the running direction of the conveyor 56 and in a direction opposite to the conveyor. They are arranged opposite to each other with a protrusion Ta of the two-folded towel protruding from 56a interposed therebetween. This pulling roller 60.62
To explain in more detail, the pair of pull-out rollers 60 and 62 are used to pull out two folded towels T, as shown in FIG.
It is composed of a drive roller 60 arranged below the transfer track of the second protrusion Ta and a pressure free roller 62 arranged above. The press-contact free roller 62 is rotatably supported by a lifting shaft 66 attached to the rod of an air cylinder 64, and is moved away from the drive roller 60 as shown by a solid line in response to a command from a second towel position detector 68, which will be described later. It is controlled so that it can move forward and backward from the position to a pressing position where it can press the protrusion Ta of the towel, which is indicated by a two-dot chain line. Incidentally, as shown in FIG. 6, the drive roller 60 is driven by an endless conveyor belt 61 that is hung on a roller of an endless conveyor belt 72 that constitutes a running surface 73 of a towel wrapping device 70, which will be described later. It is configured to run synchronously in the same direction as the running direction of the conveyor belt 72.

In FIG. 4, reference numeral 68 indicates a second towel position detector, and the running operation of the conveyor belt 56 and the movement of the pressure free roller 62 are controlled by detection commands from the second towel position detector 68. Ru. That is, the conveyor belt 56 allows the conveyor belt 56 to:
When the protrusion Ta of the two-folded towel T2 transported along the flow direction is located between the drive roller 60 and the pressure free roller 62 as shown in FIGS. 4 and 5,
A second towel position detector 6 consisting of a photoelectric sensor detects this position.
8, and in response to this detection command, the drive of a step motor (not shown) which is the drive source of the conveyor belt 56 is stopped and controlled, and therefore the running operation of the conveyor belt 56 is stopped. Furthermore, when the conveyor belt 56 is running, the pressure contact free roller 62 is provided at a position spaced apart from the drive roller 60 as shown by solid lines in FIGS. 4 and 6. When the traveling operation of the conveyor belt 56 is controlled to be stopped by a command, the lifting shaft 66 attached to the rod of the air cylinder 64 is lowered to lower the press-contact free roller 62 rotatably supported by the lifting shaft 66. As shown by the two-dot chain line, the drive roller 60 is controlled so that it can advance from the separated position shown by the solid line to the pressing position where it can pinch the protrusion Ta of the towel, shown by the two-dot chain line. Therefore, when the two-folded towel T2 placed on the transfer surface of the conveyor belt 56 is in its stopped position, the protrusion Ta protruding from the belt side end 56a is rotated by the drive roller 60 in the pulling direction. By being pinched between the and the pressure contact free roller 62,
It is pulled out in a direction perpendicular to the running direction of the conveyor belt 56 and in a direction opposite to the conveyor, and is transported in this pulling direction.

In this way, the two-folded towel T2 transported by the feeding conveyor 3o with the fold direction at the top is also moved by the towel flow attitude direction changing device 40 shown in FIGS. Similar to the towel flow attitude direction changing device 40 shown in FIG. 3, the towel is transferred to the next stage, the towel winding device 7o, in a direction perpendicular to the previous flow direction, and with the fold side direction at the beginning. become.

As shown in FIGS. 2 and 3, the towel winding device 70 is run synchronously in the same direction as the rotational direction of the conveying roller group 5o of the towel flow attitude direction changing device 40, and its starting end position is The conveyance roller group 50...
An endless conveyor belt 72 disposed near the end roller of the endless conveyor belt 72 and an upper surface of the running surface 73 of the endless conveyor belt 72 are connected to each other through a gap such that the two-folded towel T2 can be rolled up along the running direction of the running surface 73. A friction cover member 75 is provided with a friction surface 76 made of a rubber material or the like. By the way, this towel winding device 70 itself is already known as a wet towel manufacturing device, but to explain further, the friction surface 76 of the friction cover member 75
The gap width between the running surface 73 of the endless conveyor belt 72 and the running surface 73 of the endless conveyor belt 72 is
The towel is gradually expanded according to the roll shape of the towel rolled up along the running direction of the endless belt conveyor 72. In addition, in FIG. 3, reference numeral 78 indicates the friction cover member 7.
5 is a compression spring stretched between the machine frame holding the friction cover member 75, and 80 is a compression spring tensioned between the running surface 73 of the endless conveyor belt 72 and the running surface 73 of the endless conveyor belt 72 against the spring pressure of the compression spring 78. This is an adjustment screw that can adjust the gap between the friction cover member 75 and the friction surface 76 disposed opposite to the surface 73 on the distal end side, that is, the opening width of the inlet portion 82. Further, the friction cover member 75
The rear end side is hinged to the machine frame so that the front end side can be opened by removing the compression spring 78.

Thus, the two-folded towel T2, which is transported by the conveying roller group 50 of the towel flow attitude direction changing device 40 with the fold side direction at the beginning, is moved in the same direction as the conveying roller group 50. It is transferred to the running surface 73' of the endless conveyor belt 72 which is running synchronously, and during the transfer process, the friction surface 76 of the friction cover member 75 causes the winding process to be shown in FIG. The rolled towel T3 thus rolled up is dropped downward from the end position of the endless conveyor bell l-72, as shown in FIG.

Incidentally, the relationship between the pulling roller 60 and the endless conveyor belt 72 of the towel wrapping device 70 in the embodiment shown in FIGS. 4 to 6 is similar to that of the transport roller group 50 in FIGS. Since the relationship is the same as that with the endless conveyor belt 72, the explanation thereof will be omitted.

The roll-shaped towel T3 rolled up in this manner is sealed in a film wrapping device 90 in the next step, and the film wrapping device 90 will be explained below mainly based on FIG. 1.

This film packaging device 90 intermittently wraps a strip of film F wound around a film holding roller 92 at predetermined length intervals in synchronization with the intermittent supply of rolled towels T3 that are intermittently supplied at predetermined intervals. A feeding roller 94 that can be fed out, a folding guide member 96 that can form the belt-like film F fed out from the feeding roller 94 into a substantially U-shape with the fins facing upward, and A feeding conveyor device 100 that intermittently feeds the film F folded into a U-shape in a predetermined direction at predetermined length intervals in synchronization with the film feeding operation; Film F
A flow direction sealing device 102 capable of welding both rising parts of a strip film F formed into a substantially U-shape along the flow direction in synchronization with the intermittent feeding operation, and a flow direction sealing device 102 capable of welding both rising parts of the strip film F formed into a substantially U-shape along the flow direction, A sealing member 10 capable of welding the welded film strip in a direction perpendicular to the film flow direction in synchronization with the intermittent feeding operation of the film strip and cutting the welded portion.
5 and a cut-and-seal device 104 having a cutting member 106.

To explain in more detail, the rolled towel T3 rolled up by the towel wrapping device 70 in the previous step is dropped downward from the end position of the endless conveyor belt 72.
The folding guide member 96 is disposed at this falling position as shown by the arrow in the drawing, and the folding guide member 96 folds the rolled towels that are intermittently dropped and supplied at predetermined intervals.
6, the receiver is configured to stop on the strip-shaped film F which is being folded into a substantially U-shape in a state in which the end side is at the top in the flow direction. In this way, the folded JW-shaped film is fed in a predetermined direction by the feeding conveyor device 100 while holding the rolled towel T3, and this feeding direction is set by the towel wrapping device. It is disposed so as to be perpendicular to the towel flow direction of 70 and opposite to the towel flow direction of the towel folding device 10. As a result, the flow direction of the towel that sequentially passes through the towel folding device 10, the towel flow posture direction changing device 40, the towel winding device 70, and the film wrapping device 90 is formed into a substantially U-shape when observed from a planar direction. It turns out. In this way, a nearly U-shaped towel flow line is formed from the star 1 position where the expanded towel T1 is placed on the placing portion 28 of the conveyor belt 12 to the goal position where the film wrapping of the rolled towel is completed. As a result, the position at which the film-wrapped towel roll is supplied almost returns to the position where the unfolded towel is placed manually. This has the advantage of making confirmation work easier. In FIG. 2, reference numeral 08 is a control 1-roll box.

Incidentally, the film feeding and feeding operations of the feeding roller 94 and the feeding conveyor device 100 are synchronized with the intermittent supply of the rolled towel T3, and have the following configuration. A towel passage detector 110 consisting of a photoelectric sensor capable of detecting the passage of a falling towel is provided at the falling supply position of the rolled towel 1-3. The feeding roller 94 and the feeding conveyor device 1
00 each drive roller 1.00 a.

10ob is controlled to be started a predetermined time after the towel passage detector 110 detects the falling passage of the towel, in accordance with the detection command. Then, when the photoelectric sensor 112 detects the register mark, the photoelectric sensor 112, which is capable of detecting register marks attached at predetermined intervals in the length direction of the film, sends a detection command to the unrolled and fed film. The rotational drive of the feeding roller 94 and each drive roller 100a, 100b of the feeding conveyor device 100 is controlled to stop, thereby stopping feeding and feeding.

In FIG. 1, reference numeral 114 denotes a roller for feeding the rolled towel wrapped in film, which is driven in synchronization with the feeding and feeding operations of the film 11 of 〇〇. Yes, also code 116
118 is a film squeezing roller capable of squeezing the edge of a towel strip folded into a substantially U-shape along the flow direction, and 118 is a guide plate; 120
The shooter 1 reference numeral 122 is a pushing member that can push the film-wrapped rolled towel supplied onto the guard plate 118 toward the shooter 120.

In this way, the rolled towel T3 rolled up by the towel winding device 70 in the previous step is intermittently dropped and supplied to the strip-shaped film F which is being folded into a substantially U-shape. The film is held in a belt-like film which is intermittently unwound and fed at predetermined length intervals in synchronization with the process, and is intermittently sent sequentially to the machine direction sealing device 102 and the cut-and-seal device 1.04. Then, the roll-shaped towel that is intermittently fed while being held in the strip-shaped film F that is folded into a substantially U-shape is moved along the flow direction by the flow direction sealing device 102 to seal both rising parts of the strip-shaped film. They are sequentially welded, and the cut-and-seal device 104 welds the tip side perpendicular to the flow direction, and by cutting and separating this welded part, each piece is sealed in a film package, completing the entire process.

<Effects of the Invention> As described above, the wet towel manufacturing apparatus according to the present invention includes a towel folding device including a towel fold position alignment mechanism in the front stage of the towel winding device, and a towel flow posture direction changing device. First, fold the unfolded towel that has been aligned to the correct two-fold position using the towel folding mechanism [1 position alignment mechanism], and fold it along the exact fold line. By drawing the towel into the drawing gap of the conveyor belt which is rotated in each direction and pinching it, it is possible to obtain a towel that is accurately folded into two.
The two-folded towel that has been transferred with the fold direction at the top is fed to the supply port of the towel winding device for the next process in a direction perpendicular to the previous flow direction and with the direction of the fold side facing at the top. It's something you get.

Therefore, according to the wet towel manufacturing apparatus according to the present invention,
The towel can be accurately folded in half, and the folded towel can be accurately fed from the side of the fold to the towel winding device for the next process. The excellent effect of being able to obtain towels can be expected.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the wet towel manufacturing apparatus according to the present invention, in which FIG. 1 is a schematic side view, FIG. 2 is a schematic plan view, and FIG. 3 is a towel flow diagram. FIG. 4 is a schematic rear view showing a posture direction changing device and a towel winding device, and FIGS. 4 to 6 mainly show other embodiments of the towel flow posture direction changing device, and FIG. 4 is a schematic side view thereof. FIG. 5 is a schematic plan view, and FIG. 6 is a schematic rear view. 10...Towel folding device in two, 12.14...Conveyor belt, 12a, 14a...Left side conveyor belt, 12b, 14. b...Right side conveyor belt,
l 6 ... Gap portion, 13a, 13b, 15a. 15b--Drive roller, 18a, 18b, 18c
, 18d--step motor, 20a, 20b...
First towel position detector, 22... Crease formation guide member, 30... Feeding conveyor, 33... Step motor, 40... Towel flow posture direction changing device, 42...
...Endless belt group, 44... Lifting roll group,
48... Second towel position detector, 50... Conveyance roller group, 56... Conveyor belt, 60.62...
・Pull J friend roller, 64・・Air cylinder, 68・
... Towel position second detector, 70 ... Towel winding device, 72 ... Endless conveyor belt 173 ... Running surface, 75 ... Friction cover member, 76 ... Friction surface, 82
... Entrance section, 90... Film packaging device, T1... Expanded towel, T2... Bi-folded towel, T3... Rolled towel.

Claims (2)

[Claims] (1) A pair of transport conveyor belts that run in the same direction and are arranged in series with a slight retraction gap apart along the running direction; and a crease forming guide member capable of extending its tip along the section to form a crease in the spread towel. It is made up of left and right conveyor belts that are each driven independently.
At a position where a desired fold position perpendicular to the flow direction of the spread towel transferred by the left and right conveyor belts is aligned with the gap, this alignment position is moved to a first towel position provided corresponding to the left and right conveyor belts. The towel fold position alignment mechanism is equipped with a towel fold position alignment mechanism that detects each one using a detector and can independently stop and control the traveling drive of the left and right conveyor belts corresponding to each detector based on the detection command, so that the fold position of the unfolded towel is aligned with the gap. When the aligned positions are detected by the respective detectors, the fold forming guide member is controlled to move in the extending direction to form a fold on the towel, and the towel can be retracted from the direction of the fold. a towel bifolding device that is controlled so that each conveyor belt can be driven in the direction of the drawing gap, and a towel bifolding device that can transport the bifolded towel supplied from the bifolding device along the folding direction, and It is installed in the gap between an endless conveyor belt whose side is constructed by a group of lifting rolls and the endless belt group so as to be able to rotate perpendicular to the traveling direction of the endless belt group. and a transport roller group with the upper surface of the roller disposed below the transport surface, and when the bifold towel transported along the running direction of the endless belt group is located above the transport roll group, the position is The towel position is detected by a second detector, and in response to this detection command, the running operation of the endless belt group is controlled to be stopped, and the lifting roll group is moved downward to control the endless belt group installed on the lifting roll group. and a towel flow attitude direction changing device configured to displace the transfer surface downward relative to the upper surface of the rollers of the conveyance roller group so as to transfer the folded towel in half onto the conveyance roller group in a stopped position. , A bi-folded towel whose fold side surface direction is directed to the flow direction of the conveyance roller group by the towel flow attitude direction changing device is moved between a running surface and a running surface on which the bifold towel is run in the same direction as the conveyance direction of the conveyance roller group. What is claimed is: 1. A wet towel manufacturing device, characterized in that it can be supplied to the entrance of a towel winding device, which has friction surfaces facing each other with a gap therebetween so as to wind up a two-folded towel along the direction. (2) a pair of conveyor belts that run in the same direction and are arranged in series with a slight gap between them along the running direction; and a crease forming guide member capable of extending its tip along the section to form a crease in the spread towel. It is made up of left and right conveyor belts that are each driven independently.
At a position where a desired fold position perpendicular to the flow direction of the spread towel transferred by the left and right conveyor belts is aligned with the gap, this alignment position is moved to a first towel position provided corresponding to the left and right conveyor belts. The towel fold position alignment mechanism is equipped with a towel fold position alignment mechanism that detects each one using a detector and can independently stop and control the traveling drive of the left and right conveyor belts corresponding to each detector based on the detection command, so that the fold position of the unfolded towel is aligned with the gap. When the aligned positions are detected by the respective detectors, the fold forming guide member is controlled to move in the extending direction to form a fold on the towel, and the towel can be retracted from the direction of the fold. a towel bifolding device that is controlled so that each conveyor belt can be driven in the direction of the drawing gap, and a towel bifolding device that is capable of transporting the bifolded towel supplied from the bifolding device along the folding direction; a conveyor belt arranged with a belt running surface shifted to one side with respect to a supply position of the bifold towel so that one end side of the bifold towel along the line can be transferred with one side end protruding from the side edge of the belt, and the conveyor belt A pair of double-folded towels placed opposite each other with a protrusion of the two-folded towel protruding from the side edge of the belt interposed therebetween so that the two-folded towel transferred by the belt can be pulled out and transferred in a direction perpendicular to the running direction of the conveyor and in a direction opposite to the conveyor. The pull-out rollers are arranged in a spaced-apart manner when the conveyor runs, and the protruding part of the towel is transferred between the pull-out rollers and the position is detected by a detection command of a second towel position detector. When the running operation of the conveyor belt is controlled to stop, it is moved from the separated position to the pressure contact position where it can pinch the protruding part of the towel, so that the two-folded towel is pulled out at the stopped position and perpendicular to the running direction of the conveyor. and a towel flow attitude direction changing device configured to be able to pull out and transfer the towel in the direction opposite to the conveyor, and the two-folded towel transferred by the towel flow attitude direction changing device with the fold side direction at the beginning. A towel winding device comprising a running surface that runs in the same direction as the pulling direction of a pulling roller, and a friction surface that is opposed to the running surface with a gap such that the towel can be rolled up in two along the running direction of the running surface. A wet towel manufacturing device characterized in that it is configured to be able to supply wet towels to an entrance.