JP3672275B2 - Method and apparatus for unfolding and shaping rectangular cloth such as hand towel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and an apparatus for washing a relatively small square cloth piece such as a wet towel or naphthkin in a laundry factory and the like, and then unfolding, fringing and folding.
[0002]
[Problems to be solved by the invention]
Conventionally, in a laundry factory, soiled square cloth pieces received together are washed or washed with water or a detergent, and the cloth pieces are cleaned in a washing process and then introduced into a dehydration process. The piece is dehydrated, the entanglement of the block of cloth is unwound, and the piece of cloth is piled up in a state where the entanglement is released. However, in order to take out and fold one piece of the cloth piece from the pile of the piece of cloth, the edge (side) of the piece of cloth must be aligned and supplied to the folding device with the piece of cloth being unfolded.
[0003]
Therefore, the dehydrated piece of cloth is flexible and easily deformed, so it cannot be mechanized and manually unfolded, edged and supplied with the edge aligned in parallel with the folding device, and packed in the folding packaging process. Shipped after temporary storage.
However, it takes a lot of labor to pick up each piece of cloth piled up by hand under a hot and humid adverse environment and arrange it in a folding device. There were problems such as high.
[0004]
According to the present invention, the piles of cloth pieces are taken out and spread one by one by a machine without manual operation, and the edges of the cloth pieces are placed or supplied parallel or perpendicular to the axis of the processing apparatus. The object is to solve the above problems.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, after washing and dewatering, one piece is picked up from a piece of rectangular cloth that has been unraveled and piled up, and one corner of the piece of cloth is diagonally opposed to this one corner. After gripping a corner (hereinafter referred to as a diagonal corner) and hanging the cloth piece,
[0006]
The folded triangular piece of cloth is placed and moved on the first belt conveyor, and one piece on the piece of cloth that is folded in a triangular shape and folded is grasped by a grasping device, and pressure air is blown out. The cloth piece is spread (expanded) by blowing air from the mouth or by rapidly moving the gripping device in the flow direction of the first belt conveyor, and is sent to the second belt conveyor.
[0007]
Since the edge of the cloth spread on the second belt conveyor is inclined by about 45 degrees with respect to the flow direction of the second belt conveyor, a cloth piece rotating plate for rotating the surface of the cloth piece on the second belt conveyor is provided. 2 Lightly press the cloth piece on the belt conveyor surface, rotate the cloth piece rotating plate in a direction to align the sides (edges) of the cloth piece, and make the edge of the cloth piece perpendicular and parallel to the flow direction of the second belt conveyor. To do. Further, in order to accurately extend the edge of the cloth piece with respect to the flow direction of the second belt conveyor so as to be parallel or perpendicular, the left and right second sensors and second sensors for detecting adjacent corner edges of the cloth piece Left and right second gripping devices are provided to receive the signal from the left and right to grip the edge near the corner of the cloth, and the edge near the corner of the cloth receives the signal of the second sensor for detecting the edge of each corner. Each is gripped, and compressed air is blown to widen the cloth piece, and the edge is linearly moved and moved to the third belt conveyor.
[0008]
A sensor for detecting the center line of the cloth piece placed on the third belt conveyor parallel to or perpendicular to the flow direction is provided on the upper part of the third belt conveyor, and a linear air nozzle that operates in response to a signal from the sensor. The belt conveyor that overlaps the place where the center line of the cloth piece rises and floats by the pressure air blown from the linear air nozzle that blows upward on the center line of the cloth piece, and the cloth piece is folded in half. It is folded, placed on a belt conveyor, moved, and fed into a roll winding device or a folding device.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
First, after washing and dewatering, grab a piece of hand towel (square-shaped cloth piece) 1 that has been unraveled and piled up, and grab one corner of hand towel 1 at the bottom end of the hand towel 1 that has been picked up When the grabbed grip is removed, the hand towel hangs down by gripping one corner of the hand towel 1. Since the diagonal part comes to the lower end of the hand towel that hangs down, the hand towel 1 is gripped by one corner and the diagonal part when it is hung with both corners held horizontally. And it will be in the state hung by the inverted triangle shape folded by making the line of a diagonal part into a ridge. The hand towel 1 suspended in an inverted triangular shape is moved onto the first belt conveyor 2.
[0010]
As shown in FIG. 1, a folded triangular hand towel 1 is placed on the first belt conveyor 2, and the hand towel 1 is provided at the end of the first belt conveyor 2 by the flow of the first belt conveyor 2. Move to one gripping device 3.
[0011]
As shown in FIG. 2, when the hand towel 1 reaches the position of the first gripping device 3, a sensor is caught and the first gripping device 3 is actuated by a command from the control device to grip the upper one of the folded hand towel 1. Pressure air is blown from the pressure air outlet to the folding interval of the hand towel 1 produced by this.
[0012]
As shown in FIG. 3, the first gripping device 3 that holds the top of the hand towel 1 is removed, the pressure air blown from the pressure air outlet is sprayed on the hand towel 1, the hand towel 1 is reversed, and the first belt conveyor 2 The hand towel 1 is pulled out and placed by the second belt conveyor 4 having a higher speed than the first belt conveyor 2 provided in series below.
[0013]
The edge of the hand towel 1 spreading on the second belt conveyor 4 is not parallel to the flow direction of the second belt conveyor 4 and is inclined by approximately 45 degrees. It is necessary to correct this inclination so that the edge of the hand towel 1 is parallel and perpendicular to the flow of the second belt conveyor 4, and the side (edge) of the hand towel 1 and the directionality (position) of the pattern are aligned.
[0014]
As shown in FIG. 4, the towel 1 has a large edge and a small edge of the fold of the edge (side), and the size of the fold width of the edge of each towel 1 is aligned at the same position and each towel 1 Therefore, the first sensor 5 for detecting the width of the wrapping edge of the hand towel 1 is provided, and the edge of the hand towel 1 that is mounted on the second belt conveyor 4 and moves is provided. Is captured by the first sensor 5, a signal from the first sensor 5 is sent to the control device, and the control device calculates the difference in folding of the edge of the hand towel 1, and any side of the hand towel 1 is folded back with a large width. Send a command.
[0015]
As shown in FIG. 5, the command determined by the control device is sent to the cloth piece rotating plate 6 provided on the upper part of the second belt conveyor 4, and the cloth piece rotating plate 6 receives the instruction and the towel 1 on the second belt conveyer 4. It is pressed lightly onto the hand towel 1 and is rotated about 45 degrees in the right or left direction while blowing and extending the pressure air onto the towel 1.
[0016]
As shown in FIG. 6, the smaller folding width at the edge of the towel 1 is perpendicular to the flow direction of the second belt conveyor 4, and the larger folding width at the edge of the towel 1 is relative to the flow direction of the second belt conveyor 4. Therefore, the hand towel 1 is rotated in the right direction with respect to the flow of the second belt conveyor 4.
[0017]
As shown in FIG. 7, the edge of the hand towel 1 whose surface is rotated by the cloth piece rotating plate 6 on the second belt conveyor 4 is not exactly parallel and perpendicular to the flow direction of the second belt conveyor 4 only by the surface rotation. Therefore, in order to align the edge of the hand towel 1 with the second belt conveyor 4 more precisely, the edge of the hand towel 1 that is placed on the second belt conveyor 4 flows right and left at right angles to the flow direction of the second belt conveyor 4. If the edge of the hand towel 1 is not parallel to the second sensor 7, it will appear as a signal time difference. Therefore, the left and right second gripping devices 8 are operated according to the time difference. Then, the edge of the hand towel 1 is gripped at right angles to the flow of the second belt conveyor 4, moved rearward, and the hand towel 1 is placed on the third belt conveyor 9 provided at right angles or in series with the second belt conveyor 4.
[0018]
As shown in FIG. 8, the centerline of the towel 1 is detected by the third sensor 10 while the towel 1 is moved by the third belt conveyor 9, and the towel 1 placed parallel or perpendicular to the third belt conveyor 9 is detected by the third belt conveyor 9. 9 and the third belt conveyor 9, straddling the fourth belt conveyor 11 provided in series, and when the center line of the hand towel 1 comes between the third belt conveyor 9 and the fourth belt conveyor 11, The pressure air blown from the linear air nozzle 12 is blown from the lower side to the center line of the hand towel 1 according to the command, the hand towel 1 is folded, and the hand belt 1 in which the sixth belt conveyor 14 superimposed on the fifth belt conveyor 13 is instantaneously folded. It is bitten and folded, placed on the fifth belt conveyor 13 and moved to the roll winding device or folding device in the next process.
[0019]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
Since it is possible to perform washing and finishing of rectangular cloth pieces without using human hands, it can be operated in an environment that is harmful to the sterilization treatment and the human body, and can be operated continuously day and night, so it is safe and inexpensive. It can be processed quickly.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic explanatory diagram at the time of spreading a folded rectangular cloth piece.
FIG. 2 is a schematic explanatory diagram at a time when an upper piece of a rectangular cloth piece folded by a grasping device is grasped and pressurized air is blown.
FIG. 3 is a schematic explanatory diagram when a rectangular cloth piece is spread by pressure air and placed on a second belt conveyor.
FIG. 4 is a schematic explanatory view showing a sensor for detecting an edge of a rectangular cloth piece.
FIG. 5 is a schematic explanatory view showing a cloth piece rotating plate for rotating a square cloth piece on a belt conveyor.
FIG. 6 is a schematic explanatory diagram at the time when a square cloth piece is rotated on a belt conveyor.
FIG. 7 is a schematic explanatory view showing a gripping device for accurately placing a rectangular cloth piece on a belt conveyor.
FIG. 8 is a schematic explanatory diagram at the time of folding a rectangular cloth piece in half.
[Explanation of symbols]
1 Hand towel (square-shaped piece of cloth)
2 1st belt conveyor 3 1st grip device 4 2nd belt conveyor 5 1st sensor 6 cloth piece rotating plate 7 2nd sensor 8 2nd grip device 9 3rd belt conveyor
10 Third sensor
11 4th belt conveyor
12 Linear air nozzle
13 5th belt conveyor
14 6th belt conveyor

Claims (10)

First Berutokonbea (2) first Berutokonbea (2) Write folded placed on a triangular shape on the shape cloth at the end near the a piece on the (1) raising viewed掴, pressure air between the upper and lower surfaces In the state where the cloth piece (1) is pulled out and spread out to the second belt conveyor (4) having a higher speed than the first belt conveyor (2) provided in series below the first belt conveyor (2). deployment shaping method of square-shaped piece of cloth such as towel, characterized in that it comprises a you placing step. The edges of the rectangular cloth pieces (1) having different width folds spread on the belt conveyor (4) are detected by the sensor (5), and any side has a large width based on the signal from the sensor (5). The cloth piece (1) is rotated to the right or left by the cloth piece rotating plate (6) while being spread by blowing compressed air on the cloth piece (1). A method of developing and shaping a rectangular cloth piece such as a hand towel , characterized by comprising a step of making the belt conveyor (4) parallel and perpendicular to the belt conveyor (4). The edges of the rectangular cloth pieces (1) having different width folds spread on the first belt conveyor (4) are detected by the first sensor (5), and based on the signal from the sensor (5), It is judged whether the side is folded back with a large width, and the cloth piece (1) is rotated to the right or left by the cloth piece rotating plate (6) while being blown with compressed air to spread the cloth piece (1). The edges of 1) are parallel and perpendicular to the first belt conveyor (4),
The edge of the cloth piece (1) is detected by the left and right second sensors (7) arranged at right angles to the flow direction of the first belt conveyor (4), and based on the time difference of the signal from the second sensor (7). The gripping device (8) grips the left and right corners of the fabric piece (1) at right angles to the flow of the first belt conveyor (4) and moves backward to make a right angle with respect to the first belt conveyor (4) or further comprising the step of placing said fabric piece (1) in a state of being parallel and at right angles second Berutokonbea (9) piece of cloth on the edge of (1) to the second Berutokonbea (9) provided in series A method for unfolding and shaping square shaped cloth pieces such as hand towels . The center line of the rectangular cloth piece (1) placed in parallel or at right angles on the first belt conveyor (9) is detected by the sensor (10) , and in series with the first belt conveyor (9). when the center line of the piece of cloth (1) between the second Berutokonbea provided with (11) and the first Berutokonbea (9) came to, it increased blowing pressure air from below the centerline cloth It folded in two to Fujogara pieces (1),
The first belt conveyor (9) and the second belt conveyor ( 11 ) are folded in half between a third belt conveyor ( 13 ) provided to be inclined and a fourth belt conveyor ( 14 ) stacked above the third belt conveyor ( 13 ) . deployment shaping method of square-shaped piece of cloth such as towel, characterized in that the fabric piece (1) piece of cloth by Rukoto Mase bite the a (1) a step of folding the folio. At the end near the first Berutokonbea (2), raised seen掴a piece on the square-shaped pieces of cloth (1) having a wrapping different widths folded in placed on triangular on the first Berutokonbea (2), The cloth piece (1) is applied to the second belt conveyer (4), which is higher in speed than the first belt conveyer (2) provided in series below the first belt conveyer (2) by spraying pressure air between the upper and lower surfaces. Pull out and place it in an open state,
The edge of the fabric piece (1) on the second belt conveyor (4) is detected by the first sensor (5), and which side is a large width fold based on the signal from the first sensor (5) , And the surface of the cloth piece (1) is rotated to the right or left by the cloth piece rotating plate (6) while blowing the compressed air on the cloth piece (1) to spread the edge of the cloth piece (1) to the second belt conveyor ( 4) parallel and perpendicular to
The edge of the cloth piece (1) is detected by the left and right second sensors (7) arranged at right angles to the flow direction of the second belt conveyor (4), and based on the time difference of the signal from the second sensor (7). A gripping device (8) grips the edge of the fabric piece (1) at a right angle to the flow of the second belt conveyor, moves rearward, and a third belt provided at a right angle or in series with the second belt conveyor (4). Place the fabric piece (1) on the belt conveyor (9) with the edge of the fabric piece (1) parallel and perpendicular to the second belt conveyor (9),
A center line of the cloth piece (1) is detected by a third sensor ( 10 ), and a third belt conveyor (9) and a fourth belt conveyor ( 11 ) provided in series with the third belt conveyor (9) in between. When the center line of the cloth piece (1) comes in between, the pressurized air is blown up from below the center line to lift the cloth piece (1) and fold it in half.
A fifth belt conveyor ( 13 ) provided with an inclination immediately above between the third belt conveyor (9) and the fourth belt conveyor ( 11 ) and a sixth belt conveyor ( 14 ) superimposed thereon are folded in half. A method for unfolding and shaping a rectangular cloth piece such as a hand towel, the method comprising the step of folding the cloth piece (1) in half by biting the cloth piece (1) . A first belt conveyor (2) and a gripping device for gripping an upper piece of a square cloth piece (1) folded on a triangle placed on the first belt conveyor (2) in the vicinity of the terminal end of the first belt conveyor (2) and (3), a pressure air outlet which Ru is reversed by blowing a pressurized air between the upper and lower surfaces of the fabric piece raised gripping (1), first Berutokonbea provided in series below the first Berutokonbea (2) (2) A device for unfolding and shaping a rectangular cloth such as a hand towel having a second belt conveyor (4) having a higher speed . A sensor (5) for detecting an edge of a square cloth piece (1) having different widths folded on the belt conveyor (4) , and rotating the square cloth piece (1) on the belt conveyor (4) . Based on the signal from the cloth rotating plate (6), the pressure air outlet that spreads the cloth piece (1) by pressurized air in the vicinity of the cloth rotating plate (6), and the signal from the sensor (5) The side of the cloth piece (1) is rotated in the right or left direction while blowing the pressure air, and the edge of the cloth piece (1) is parallel to the belt conveyor (4). An apparatus for unfolding and shaping a rectangular cloth piece such as a hand towel having a control device for making a right angle . A first belt conveyor (4) and a second belt conveyor (9) provided at right angles or in series with the first belt conveyor (4);
A first sensor (5) for detecting the edges of the rectangular cloth pieces (1) having different widths folded on the first belt conveyor (4), and a square cloth piece (on the first belt conveyor (4)) 1) From the cloth sensor rotating plate (6) for rotating the surface, the pressure air outlet for spreading the cloth cloth (1) by pressurized air in the vicinity of the cloth rotating plate (6), and the first sensor (5) The side of the cloth piece (1) is rotated by rotating the cloth piece rotating plate (6) in the right direction or the left direction while blowing the compressed air. A control device parallel and perpendicular to the first belt conveyor (4);
Based on the time difference between the left and right second sensors (7) arranged at right angles to the flow direction of the first belt conveyor (4) for detecting the edge of the cloth piece (1) and the signal from the second sensor (7). piece of cloth the corner portions of the left and right (1) gripping at right angles to the flow of the first Berutokonbea (4), moves backward, the fabric piece on the second Berutokonbea (9) the edges of the (1) An unfolding and shaping device for a rectangular cloth piece such as a hand towel, having a gripping device (8) for placing the cloth piece (1) in a state parallel and perpendicular to the second belt conveyor (9) . The first belt conveyor (9), the second belt conveyor ( 11 ) provided in series with the first belt conveyor (9) in series, and immediately above the first belt conveyor (9) and the second belt conveyor ( 11 ). An inclined third belt conveyor ( 13 ) and a fourth belt conveyor ( 14 ) superimposed above ,
A sensor (10) for detecting the center line of the rectangular cloth piece (1) placed in parallel or at a right angle on the first belt conveyor (9) , a second belt conveyor ( 11 ) and a first belt conveyor (9 When the center line of the cloth piece (1) comes in between, a linear air nozzle that blows up pressure air from below the center line to lift the cloth piece (1) and fold it in half. 12) and has a,
(1) Development of a rectangular cloth piece such as a hand towel which is folded in half by engaging the cloth piece (1) which is lifted and folded in the third belt conveyor ( 13 ) and the fourth belt conveyor ( 14 ). Shaping device. A first belt conveyor (2) , a second belt conveyor (4) higher in speed than the first belt conveyor (2) provided in series below the first belt conveyor (2), and a right angle to the second belt conveyor (4) or The third belt conveyor (9) provided in series, the fourth belt conveyor ( 11 ) provided in series with the third belt conveyor (9) in between , the third belt conveyor (9) and the fourth belt conveyor ( 11 ). A fifth belt conveyor ( 13 ) provided to be inclined immediately above and a sixth belt conveyor ( 14 ) superposed thereon ,
A first grip for gripping an upper piece of a square cloth piece (1) having folded backs of different widths folded in a triangular shape placed on the first belt conveyor (2) in the vicinity of the terminal end of the first belt conveyor (2). A first pressure air outlet for spraying pressure air between the device (3) and the upper and lower surfaces of the gripped cloth piece (1) and reversing it;
A first sensor (5) for detecting the edge of the cloth piece (1) on the second belt conveyor (4) , and a cloth piece rotating plate for rotating the surface of the square cloth piece (1) on the second belt conveyor (4) (6), a second pressure air outlet for spreading the cloth piece (1) with pressurized air in the vicinity of the cloth piece rotating plate (6), and any side based on a signal from the first sensor (5). Is turned to a large width, and the cloth rotating plate (6) is rotated to the right or left while blowing the pressure air from the second pressure air blowing port, and the edge of the cloth piece (1) is moved to the belt conveyor. A control device parallel and perpendicular to (4);
Piece of cloth and second Berutokonbea (4) the second sensor (7) the flow direction and arranged at right angles to the left and right to detect the edge (1), based on the time difference between the second signal from the sensor (7) The right and left corners of the cloth piece (1) are grasped at right angles to the flow of the second belt conveyor (4) and moved rearward so that the edge of the cloth piece (1) is placed on the third belt conveyor (9). A second gripping device (8) for placing the cloth piece (1) in a state parallel and perpendicular to the third belt conveyor (9) ;
A third sensor (10) for detecting the center line of the rectangular cloth piece (1) placed in parallel or at a right angle on the third belt conveyor (9), a third belt conveyor (9), and a fourth belt conveyor. When the center line of the cloth piece (1) comes between (11), the air is blown up from below the center line to lift the cloth piece (1) and fold it in half. With an air nozzle (12) ,
A device for unfolding and shaping a rectangular cloth such as a hand towel that is folded in half by biting the cloth piece (1) that is lifted and folded in the fifth belt conveyor (13) and the sixth belt conveyor (14).

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