JPH115670A - Method and device for spreading work such as cloth piece of indeterminate form - Google Patents

Abstract

PROBLEM TO BE SOLVED: To more practically automize and to accelerate work spreading by providing the method including a first process of throwing a work in a container and rotating the container to give rotation to the work, and a second process of dropping the rotating work in the air outside the container to spread the work with centrifugal force. SOLUTION: A work is thrown in a rotating container 10 through an acceptor 18 of an upper end opening to give rotation to the work. At this time, the thrown work rotates in the state of being positioned in a work storing part 13 by its dead load. As the work storing part 13 is gradually throttled to be an inverted pyramid-like, the work is rotated while being automatically guided to the central part near the center of rotation of the work storing part 13. When the work is rotated at a required number of rotation, an electric current is applied to the respective electromagnets 36 simultaneously to open movable blades 31 at the same time, so that the work is dropped from the storing part 13 by its dead load to be dropped in the air. As the dropped work is rotated, the centrifugal force acts on the work itself so that the work drops while spreading.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for developing a workpiece such as a cloth piece having an irregular shape due to twisting or bending, and more particularly, to centrifuging an irregular shaped cloth piece before ironing in a laundry factory or the like. The present invention relates to a technology that can be effectively used to develop a laundry finishing process by using force to automate a laundry finishing process.

[0002]

2. Description of the Related Art In industrial laundry such as a laundry factory, for example, when cleaning a large amount of cloth pieces (hereinafter referred to as "work") such as a seat back cover of a train or napkins, washing, dehydration, semi-drying, and development. It is common to carry out processes such as ironing, packaging and the like.

[0003] Conventionally, various attempts have been made to automate all of these steps, but they have not yet reached the stage of realization. In the current work, the work from loading to washing, dewatering and semi-drying is almost automated, but the finishing process from spread (development) to ironing is hardly automated. Therefore, in reality, all the work of unfolding the work one by one in an unfolded state is performed manually so that the work after semi-drying can be ironed.

[0004]

When attention is paid to the proportion of workers required in such a conventional industrial washing process, it has been found that automation is progressing in the work process from load work to washing and semi-drying. In contrast, only about a few percent of the required personnel are required, while about 80% of the total number of workers is in the finishing process. Therefore, automation of this part can have a very significant effect.

However, in order to automate the finishing step, a large amount of works are surely separated one by one, and then the work is mechanically unfolded so that the work can be ironed. Technology is required. Although it is not difficult for humans to perform these operations, there are many difficulties in the device configuration because the object is a wet cloth,
It is considered that automation was delayed due to the following properties. (1) Since the work is soft, it is deformed by a slight force. (2) The friction is large and it is difficult to handle. (3) It is necessary to develop a large amount in a short time.

[0006] As one proposal, it is conceivable to attach a piece of cloth to a frame in a dry state before washing, and to perform washing to finishing consistently as it is. It is not very desirable because it will drastically change the line.

As an idea for automating the developing process when the work is a rectangular cloth piece, for example, Japanese Unexamined Patent Publication No.
As described in Japanese Patent No. 231998, there is also proposed a technique of using a plurality of chuck devices to grasp and develop a corner of a cloth piece and a corner sharing one side with the corner. However, this method has drawbacks that cannot be applied to a piece of cloth that is twisted or bent in a state where the corners are not exposed, and furthermore, it needs to be deployed through many mechanical gripping and pulling steps. There is a problem that takes time because there is. Therefore, it is far from practical and not realistic.

The present invention has been made in consideration of the above points, and develops an irregularly shaped workpiece by centrifugal force, thereby realizing a practical automation of an irregularly shaped cloth piece or the like. It is an object to provide a method and a deployment device. A further object of the present invention is to provide a developing device including a separating device that can surely separate a large number of irregular-shaped workpieces one by one before being developed.

[0009]

In order to solve the above-mentioned problems, the method of the present invention is a method for developing a work such as a cloth piece having an irregular shape due to torsion, bending, or the like. A first step of feeding the work into the container and rotating the work by rotating the container, and a second step of spreading the work by centrifugal force by dropping the rotating work into the air outside the container. . Here, when the container is rotated about a vertical axis and the work is dropped into the air outside the container, the work can be dropped by utilizing its own weight and dropped. Further, the apparatus of the present invention is an apparatus used for developing a work such as a cloth piece having an irregular shape due to twisting or bending, and a container for applying rotation to the work, and rotating the container. A drive mechanism, and the container is a cylindrical container body arranged rotatably around a vertical axis about its own axis, and a work accommodating portion provided at a lower portion of the container body and accommodating a work. The work accommodating portion includes an opening / closing device for dropping the work by its own weight and dropping it into the air. Here, the work accommodating portion has an inverted conical shape or an inverted pyramid shape, and the opening / closing device includes a plurality of movable blades in a form in which a peripheral wall portion of the work accommodating portion is vertically divided and equally divided in a circumferential direction. The upper ends of the blades may be hinged to the lower portion of the container body, and the lower ends of the movable blades may be movable around the hinges in directions approaching and moving away from each other. Further, the opening operation of the opening / closing device may be performed by centrifugal force generated in the movable blade based on rotation of the container. Further, a configuration may be adopted in which a holding mechanism for holding the movable blade at the closed position is provided between the container body and the movable blade. Further, the holding mechanism includes a permanent magnet fixed to the movable blade side and an electromagnet fixed to the container body side, and arranges these permanent magnets and the electromagnets at opposing positions. Can be set to generate a magnetic force that repels the magnetic field. Further, the holding mechanism includes an electromagnet fixed to one of the movable blade side and the container body side, and an iron piece fixed to the other, and the electromagnet and the iron piece are arranged at opposing positions. You can also. Furthermore, in the present invention, in a device for unfolding a work such as an irregularly shaped cloth, a separation device for untangling and separating the entanglement between the irregularly shaped works before being put into the work unfolding device is included. A cylindrical drum main body having a work input port on one end side and a work outlet on the other end side; a driving mechanism for applying a rotational force to the drum main body; and a driving mechanism provided in the drum main body. A configuration is provided that includes a separation plate for untangling the work in association with the rotation, and a posture control mechanism for imparting an inclination with the outlet side downward with respect to the drum main body.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the attached FIGS. (Embodiment 1) FIG. 1 is a front view showing an embodiment of an apparatus suitable for realizing the work unfolding method of the present invention, FIG. 2 is a plan view thereof, and FIG. Figure,
FIG. 4 is a partial side view of the movable blade.

As can be understood from these drawings, the work spreading device 1 of the present invention has a rectangular back cover (hereinafter referred to as a work) in which twisting and bending have occurred through washing, spin-drying, semi-drying, and separating steps. A) a container 10 for giving rotation to K, and a drive mechanism 11 for rotating the container 10. The container 10 has a cylindrical container body 12 rotatably arranged around a vertical axis about its own axis.
And a work accommodating portion 13 provided at a lower portion of the container body 12 and accommodating the work K. Work storage unit 13
Includes an opening / closing device 30 for dropping the work K by its own weight and dropping it into the air.

Next, these details will be described. The container main body 12 is cylindrical, and the support bearing mechanism (sroller bearing) 1 at two upper and lower positions is mounted on the gantry 14.
It is rotatably supported via 5, 16. That is, two thick upper and lower support plates 14a, 1
4b are spaced horizontally from each other and bolts 14
It is fixed by c and the connecting plate 14d. Therefore, the container body 12 is directly connected to the support plates 14a, 1
4b. Both the upper and lower ends of the container body 12 are open, and the upper end is provided with a hopper-shaped receptacle 1 for reliably guiding the workpiece K to be charged.
8 are provided.

On the outer periphery of the upper part of the container body 12,
A driven pulley 19 serving as a driven timing pulley is fixed. A drive pulley 20 serving as a drive-side timing pulley is fixed to an output shaft 22 of a drive motor 21. Then, the timing belt 23 is wound between the driven pulley 19 and the driving pulley 20, whereby
A rotation drive mechanism 11 for the container 10 is configured.

The work accommodating portion 13 provided at the lower portion of the container body 12 is formed in a regular hexagonal inverted pyramid shape as shown in the cross sectional view of FIG. The work accommodating portion 13 also serves as an opening / closing device 30 for dropping the work K into the air. That is, the work storage unit 1
3 is provided with six movable blades 31 in a form in which the peripheral wall portion is vertically divided into six equal parts in the circumferential direction.

The upper end of each of the movable blades 31 is hinged to the lower portion of the container body 10 via a shaft pin 32, and the lower end of each of the movable blades 31 is centered on the shaft pin (hinge portion) 32. Are configured to be movable in directions approaching and moving away from each other. Thereby, when the work accommodating part 13 rotates integrally with the rotation of the container body 10,
A centrifugal force acts on each movable blade 31, and the centrifugal force causes each movable blade 31 to vertically rotate as shown by a virtual line in FIG. 1, so that the entire work accommodating portion 13 is opened. In addition, the shaft pin 32 is located inside the movable blade 31 and is eccentric, and when the centrifugal force becomes extremely small,
Alternatively, when the rotation of the container 10 stops, the movable blade is designed to be closed by its own weight.

Further, a holding mechanism 33 is provided between the container body 10 and each of the movable blades 31 for holding each of the movable blades 31 in a closed position by using a magnetic force. The holding mechanism 33 includes a permanent magnet 35 fixed to the movable blade 31 and an electromagnet 36 fixed to the container body 10. The permanent magnet 35 and the electromagnet 36 are arranged at opposing positions, and always exert an action of holding the movable blade 31 in the closed position by the magnetic force of the permanent magnet 35,
When the electromagnet 36 is energized, a repulsive magnetic force is generated against the permanent magnet 35. For example, when the N pole of the permanent magnet 35 is disposed on the side facing the electromagnet 36, the N pole repelling the N pole is set to be generated in the electromagnet 36. Thereby, it is considered that the movable timing of each movable blade 31, that is, the timing at which the work accommodating portion 13 is brought into the fully opened state at once can be electrically determined. Of course, it is also possible to set the movable blade 31 to be closed when the power is supplied.

There are various methods for energizing the electromagnet 36. In consideration of the fact that the entire container rotates, a power supply method using a slip ring 37 and a power supply brush 38 is adopted. That is, the slip ring 37 is provided on the outer periphery of the container body 12, and the power supply brush 38 is provided on the gantry side. The power supply brush 38 is held by a brush holder 39, and is
Biased to the side. The brush holder 40 is fixed on the support plate 14b. Similarly, if the electromagnet 36 is always energized, a device in which the permanent magnet is simply an iron piece can also be configured.

A protection plate 41 is provided on the upper support plate 14a to protect a rotating part of the driving mechanism 11 and the like from above. The protection plate 41 is fixed to the upper support plate 14B by a plurality of mounting bolts 43. Reference numeral 45 denotes a mounting plate for the motor 21.

In order to use the work expanding device 1 having the above-described configuration to expand the work K having a rectangular backrest cover having an irregular shape due to, for example, torsion or bending, first, the work accommodating portion 13 is removed. The container 1 is rotated by the drive motor 21 while the container 1 is kept closed. Then, the work K is supplied from the receptacle 18 at the upper end opening of the container 10 in the rotating state, and the work K is rotated. At this time, the loaded work K is rotated by its own weight in a state where it is positioned in the work accommodating section 13. Also, the work accommodating section 13
The work K is rotated while being automatically guided to the center of the work accommodating portion 13 that is close to the center of rotation, since the work K has a tapered inverted pyramid shape.

Next, when the work K has reached the required number of revolutions, the electromagnets 36 are energized all at once to move the movable blade 31.
Are simultaneously opened, and the work K is dropped from the storage section 13 by its own weight and dropped into the air. Since the dropped work K is given rotation, a centrifugal force acts on itself, and the work K unfolds at a stretch and falls while spreading to the original shape of the original rectangular cover. At this time, the work K in the middle of falling is added with air resistance, so that the work K falls while being spread.

According to the experimental results, when the torsion or bending generated in the work K is small, the centrifugal force given by rotating the work K can be sufficiently developed even if it is relatively small. On the other hand, it has been proved that when the work K has a large torsion or deflection, the work K can be deployed by applying a correspondingly large centrifugal force. Therefore, when controlling the rotation speed of the container 10 for applying the centrifugal force to the work K, the torsion and bending state of the work K, the material and size of the work K itself, the degree of drying and the overall weight are taken into consideration. Will be determined. Incidentally, in the experiment, good results were obtained under the following conditions.

Target work: a train seat back cover. Number of rotations: 330 rpm to 350 rpm. Shape ……… Spreading (movable blades) No protrusion at the lower end. A state where the work has entered due to natural fall (not packed). Fall height: approx. 43 cm from the bottom of the spring. Constant-speed rotation time: about 1.9 seconds.

(Embodiment 2) FIG. 5 shows a principle diagram suitable for a case where the work developing device 1 according to the present invention is applied to a backrest cover finishing work automation line. With reference to this principle diagram, a finishing work automation line will be schematically described. In FIG. 5, for convenience of explanation, the side view and the plan view are used together.

After a washing step, a dehydrating step and a semi-drying step in the preceding stage, the work K consisting of a backrest cover, which has been entangled and separated, is separated by a first conveyor 50 having a partition 51 on the surface. The images are sequentially transferred one by one to the primary developing device 1.

The primary developing device 1 has the work developing device described in the first embodiment. Therefore,
The works K transported by the first conveyor 50 are sequentially loaded one by one into the primary unfolding device 1, where the unfolded work K is dropped onto a wide second conveyor 52 arranged below. And transferred to the subsequent stage. 1
A is a closing detector. Above the second conveyor 52, a left / right position detector 53 for the work K is disposed.
The relative position of the work K on the conveyor 52 is detected.

Next, the work K on the second conveyor 52
Are transferred to a third conveyor 54 having a left-right alignment function. The third conveyor 54 is movable left and right in accordance with the position of the work K on the second conveyor 52, as shown by the arrow B, and operates based on the output of the left and right position detector 53. The work K transferred onto the third conveyor 53 is moved by the front and back detector 55 during the transfer.
Are detected, and the selection reversing device 56 operates based on the detection result. For example, when the work K is transported with the back side up as shown in the figure, the selection reversing device 56 is operated to reverse the work K so that the front side of the work K is up, and then deliver the work K to the fourth conveyor 57. .

On the fourth conveyor 57, a secondary developing device 60 is arranged. The secondary unfolding device 60 has an angle adjusting and unfolding function before the work K is sent out to the iron roller 70 at the subsequent stage. That is, the secondary deployment device 60
Is provided with a turntable 61 which can be moved up and down in a state where a velvet type fastener (velcro) K1 provided on the work K is adsorbed at a lower portion thereof, and the angle determination device 6
It is configured to operate based on the determination result of 2. The angle determination device 62 has a function of determining the angle around the horizontal of the work K by, for example, image processing, and outputs a rotation angle command signal of the turntable 61 based on the determination result.

After the turntable 61,
The remover 64 and the deployment determination device 65 are arranged in order. The remover 64 has a function of dropping the work K sucked on the turntable 61 onto the fourth conveyor 57 in such a manner as to enter between the two from the rear side, and cooperates with the vertical movement of the turntable 61. It is configured to do this.

The deployment judging device 65 is located near the rear end of the fourth conveyor 57 and judges whether or not the work K transferred to the fifth conveyor 66 is normally unfolded. Here, if it is normal, it is transferred to the fifth conveyor 66, and then transferred to the iron roller 70 to perform iron finishing. At this time, the work K is sent to the iron roller 70 while pulling the rear end of the work K by the tensioner 71, so that a good iron finish can be performed.

On the other hand, when the deployment determining device 65 determines that the deployment is abnormal, the work K is dropped into the collection bucket 74 and returned to the first first conveyor. Therefore, for the work having the unusual deployment, the primary deployment device 1
Then, it is sent to the iron roller 70 via the secondary developing device 60.

The iron-finished work K is stored in the stacker 71 after a visual inspection, and is appropriately packed by an automatic packing means or the like. The work K determined to be defective by visual inspection is also returned to the first first conveyor.

When such a finishing work automation line is constructed, first, the work K is unfolded by the primary unfolding device 1 and the angle adjustment (posture correction) of the work K before ironing is performed by the secondary unfolding device 60. )It can be performed. As a result, the finishing operation can be fully automated, and the finishing process can be performed accurately and quickly.

(Embodiment 3) FIGS. 6 to 10 show a preferred embodiment as a separating apparatus for unraveling a large number of works K which are entangled in a dehydrating step or a semi-drying step. For example, it can be arranged in front of the first conveyor and used in combination with the primary developing device 1. Hereinafter, this separation device will be described.

This separating device 80 has a cylindrical drum main body 83 having a work input port 81 at one end and a work outlet 82 at the other end, and a drive for applying a rotational force to the drum main body 83. A mechanism 84, a plurality of separation plates 87 provided in the drum main body 83 for loosening the entanglement of the work with the rotation of the drum main body 83, and the inclination of the drum main body 83 such that the outlet 82 side thereof is downward. And a posture control mechanism 90 for performing the operation.

The outer peripheral plate 86 of the drum body 83 is constituted by a punching plate having a large number of small holes for draining the work and increasing the coefficient of friction with the work. As shown in FIG. 9, the outer peripheral plate 86 includes a unit outer peripheral plate 86B divided into five equal parts in the circumferential direction, and each unit outer peripheral plate 86B.
It is composed of a connecting plate 86C for connecting B to each other. Each connecting plate 86C is bent inward by approximately 90 degrees to form a raised portion 86R protruding inward of the drum main body 83. This raised part 86R
Exerts an effect of lifting the work upward with the rotation of the drum main body 83. The connecting plate 86C also serves as a shaft cover.

Further, a plurality of baffle plates 87 arranged at intervals in the axial direction are provided in the drum main body 83 to constitute a separation plate. These baffle plates 8
7 has holes 87B at the center as shown in FIG. 10, and the work is sequentially moved to the exit side through these holes 87B. Each of the holes 87B is gradually increased toward the outlet 82 side. Therefore, the input port 81
A part of the work is successively passed to the next stage by the action of the inclination of the drum main body 83 and the action of each baffle plate 87 having a different size of the hole 87B, thereby making the passing amount uniform. , Stochastic separation can be performed.

The drum main body 83 is configured such that the outer peripheral portions at both ends covered with the shaft cover 85 are supported by support rollers 91 of the attitude control mechanism 90.
, Each of which is rotatable about its axis at two points, and rotated at a constant speed by the drive mechanism 84. The drive mechanism 84 includes a pinion 9 disposed on a base 92.
3 and a driven gear 95 provided on an outer peripheral portion near the center of the drum main body 83, and a chain 96 wound between the pinion 93 and the driven gear 95. 89B indicates a band member, and 89C indicates a baffle fixing plate W3O.

The posture control mechanism 90 includes casters 97 provided at the four corners of a base 92 and support legs 98 which can move up and down.
Are provided near the four corners, and the posture of the drum body 83 can be controlled by adjusting the length of these support legs 98. In FIG. 6, reference numeral 100 denotes a cradle used to supply a work to the input port 81 of the drum main body 83.

In the separating device 80, a large amount of work entangled in the dehydration step or the semi-drying step is fed into the input port 81.
, It is possible to discharge the works separated one by one from the outlet 82. Therefore,
It is very effective when it is arranged in front of the above-described work developing device 10 and used in combination with the work developing device 10.

In each of the above embodiments, in the work developing device 1 used for the primary development, each movable blade 31 is
Although an example is shown in which the device is opened by utilizing the centrifugal force accompanying the rotation of the device, the device may be forcibly opened and closed using a mechanical or electric power source. In such a case, since the movable blade 31 can be opened faster than the deployment speed of the work deployed by centrifugal force, there is no danger that the work immediately after being dropped into the air becomes entangled with a part of the movable blade. You can also.

Further, in the embodiment, a technique suitable for the case where the present invention is mainly applied to a work made of a cloth piece such as a back cover or a napkin has been described. However, the present invention is not limited to this, and the present invention is not limited thereto. Needless to say, the present invention can be applied to a work having a different material, a material, and a work having a different shape.

[0042]

As described above, according to the present invention, a work made of cloth or the like, which has an irregular shape due to twisting or bending, is put into a container, and the work is rotated by rotating the container. By dropping the work into the air outside the container, the work is spread by centrifugal force, so the work can be instantaneously developed by applying a simple method of applying the centrifugal force to the work and dropping it. This makes it possible to achieve more practical automation and higher speed for work development.

Further, when the container is rotated around a vertical axis and the work is dropped into the air outside the container, the work is dropped by utilizing its own weight to drop the work.
It is possible to reliably drop into the air without adopting a special method for dropping.

On the other hand, according to the apparatus of the present invention, there is provided a container for imparting rotation to a work, and a drive mechanism for rotating the container, and the container is rotated about a vertical axis about its own axis. It has a cylindrical container main body arranged so as to be capable of being provided, and a work storage portion provided at a lower portion of the container main body for storing a work, and the work storage portion drops the work by its own weight and drops the work into the air. The opening / closing device for the work can be configured so that the work for developing the work can be automated by a device having a relatively simple structure, and the working cost can be reduced.

The work accommodating portion has an inverted conical shape or an inverted pyramid shape, and the opening / closing device includes a plurality of movable blades each having a form in which a peripheral wall portion of the work accommodating portion is vertically divided and equally divided in the circumferential direction. The upper end of each movable blade is hinged to the lower part of the container body, and the lower end of each movable blade can be moved toward and away from each other with the hinge as the center. The device can be configured integrally, and by making it an inverted cone,
The work can be automatically positioned at the center of the work accommodating portion, whereby the work can be accurately dropped while imparting rotation to the work without bias.

Further, the opening operation of the opening / closing device is performed by centrifugal force generated in the movable blade based on the rotation of the container, thereby eliminating the need for a mechanical power source.
Accordingly, simplification of the apparatus and reduction of the manufacturing cost can be achieved.

Further, by providing a holding mechanism for holding the movable blade in the closed position between the container body and the movable blade, the work is inserted into the work accommodating portion when the work is loaded. Can be kept.

Further, the holding mechanism includes a permanent magnet fixed to the movable blade side and an electromagnet fixed to the container body side. The permanent magnet and the electromagnet are arranged at opposing positions, and when the electromagnet is energized. By setting such that a magnetic force repelling the permanent magnet is generated in the above, each movable blade can be opened instantaneously and simultaneously. In this case, since the magnets repel each other, a force in the opening direction can be simultaneously applied to each movable blade.

The holding mechanism includes an electromagnet fixed to one of the movable blade side and the container body side and an iron piece fixed to the other, and the electromagnet and the iron piece are arranged at opposing positions. By doing so, the holding mechanism can be simplified. In that case, each movable blade can be controlled to be in a closed state when the electromagnet is energized, and to be opened when the electromagnet is shut off.

Further, according to the present invention, the work developing device includes a separating device for untangling and separating the entanglement between the works before being put into the work developing device, and the separating device has one end of the work. Has an inlet,
A cylindrical drum main body having a work outlet on the other end side, a drive mechanism for applying a rotational force to the drum main body, and a drive mechanism provided in the drum main body for untangling the work with the rotation of the drum main body By providing a separation plate and a posture control mechanism for imparting a tilt such that the outlet side of the drum body is downward, a large amount of works before being unfolded can be separated one by one. This can contribute to full automation of the work finishing operation.

[Brief description of the drawings]

FIG. 1 is a front view of a deployment device according to a first embodiment of the present invention.

FIG. 2 is a plan view of the developing device according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view of a main part of the deployment device according to the first embodiment of the present invention.

FIG. 4 is a partial side view of the deployment device according to the first embodiment of the present invention.

FIG. 5 is a principle diagram of an automation line according to a second embodiment of the present invention.

FIG. 6 is a side view of a separation device according to a third embodiment of the present invention.

FIG. 7 is a front view of a separation device according to a third embodiment of the present invention.

FIG. 8 is a partially omitted side view of a separation device according to a third embodiment of the present invention.

FIG. 9 is a cross-sectional view of a drum outer peripheral plate according to a third embodiment of the present invention.

FIG. 10 is a schematic view of a separation device according to a third embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 work deployment device (primary deployment device) K work 10 container 11 drive mechanism 12 container body 13 work storage portion 14 gantry 14a support plate 14b support plate 15, 16 support bearing mechanism 18 receiving port 19 driven pulley 20 drive pulley 21 drive motor 22 output Shaft 23 Timing belt 30 Opening / closing mechanism 31 Movable blade 32 Shaft pin 33 Holding mechanism 35 Permanent magnet 36 Electromagnet 37 Slip ring 38 Power supply brush 39 Brush holder 40 Spring 41 Protection plate 50 First conveyor 51 Partition 52 Second conveyor 53 Left / right position detection device 54 Third conveyor 55 Front / back detection device 56 Selection reversing device 57 Fourth conveyor 60 Secondary unfolding device 61 Turntable K1 Velvet type fastener (velcro) 62 Angle judging device 64 Remover 6 Deployment determination device 66 Fifth conveyor 70 Iron roller 71 Tensioner 72 Collection bucket 73 Stacker 80 Separation device 81 Input port 82 Exit 83 Drum main body 84 Drive mechanism 85 Shaft cover 86 Outer plate 86B Unit outer plate 86C Connecting plate 86R Raised portion 87 Separating plate (Baffle plate) 87B hole 90 attitude control mechanism 91 support roller 92 base 93 pinion 94 motor 95 driven gear 96 chain 97 caster 98 support leg 100 support base.

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Kimiaki Sasaki 2-8-8 Hikaricho, Kokubunji-shi, Tokyo 38 Within the Railway Technical Research Institute (72) Yukio Nishiyama 2-8-8 Hikaricho, Kokubunji-shi, Tokyo 38 Inside the Railway Technical Research Institute (72) Inventor Tatsuro Kishimoto 2- 10-8 Yaesu, Chuo-ku, Tokyo Central Linen Supply Co., Ltd. (72) Inventor Hiroshi Maejima 32-24 Maeuemachi, Kawaguchi-shi, Saitama Toto Folder Industry Co., Ltd.

Claims (9)

[Claims] 1. A method for developing a workpiece such as a cloth piece having an irregular shape due to torsion, bending, or the like,
A first step of putting the work into a container and rotating the work by rotating the container, and a second step of spreading the work by centrifugal force by dropping the rotating work into the air outside the container. And a method for developing a workpiece such as an irregularly shaped cloth piece. 2. The method according to claim 1, wherein the container is rotated around a vertical axis, and when the work is dropped into the air outside the container, the work is dropped by utilizing its own weight. Work deployment direction of the irregular shaped cloth piece or the like described in 1. 3. A device for unfolding a workpiece such as a cloth piece having an irregular shape due to twisting or bending, etc., wherein a container for rotating the workpiece and a driving mechanism for rotating the container are provided. The container is provided with a cylindrical container main body rotatably arranged around a vertical axis about its own axis, and a work accommodating portion provided at a lower portion of the container main body and accommodating the work. Wherein the work accommodating portion includes an opening / closing device for dropping the work by its own weight and dropping the work into the air, wherein the work deploying device is an irregular shaped cloth piece or the like. 4. The work accommodating portion has an inverted conical shape or an inverted pyramid shape, and the opening / closing device includes a plurality of movable blades in a form in which a peripheral wall portion of the work accommodating portion is vertically divided and equally divided in a circumferential direction. The upper end of each movable blade is hinged to the lower part of the container body, and the lower end of each movable blade is configured to be movable in the direction of approaching and separating from each other about the hinge. The work development device for irregularly shaped cloth pieces or the like according to claim 3. 5. The irregular cloth piece according to claim 4, wherein the opening operation of the opening / closing device is performed by a centrifugal force generated in the movable blade based on the rotation of the container. Deployment device. 6. The container according to claim 4, wherein a holding mechanism for holding the movable blade in a closed position is provided between the container body and the movable blade. Deployment device for irregular shaped cloth pieces. 7. The holding mechanism includes a permanent magnet fixed to the movable blade side and an electromagnet fixed to the container body side, and the permanent magnet and the electromagnet are arranged at opposing positions and are connected to the electromagnet. 7. The unfolding device for irregularly shaped cloth or the like according to claim 6, wherein a magnetic force repelling the permanent magnet is generated when the current is supplied. 8. The holding mechanism includes an electromagnet fixed to one of the movable blade side and the container body side, and an iron piece fixed to the other, and the electromagnet and the iron piece are arranged at opposing positions. 7. The method according to claim 6, wherein
A device for unfolding irregularly shaped cloth pieces or the like according to the above. 9. The apparatus for unfolding irregular-shaped cloth or the like according to claim 3, further comprising a separating device for untangling and separating the untangled workpieces before being put into the unfolding apparatus, The separation device has a cylindrical drum main body having a work input port on one end side and a work outlet on the other end side, a driving mechanism for applying a rotational force to the drum main body, and A separating plate for unraveling the entanglement of the work with the rotation of the drum main body, and a posture control mechanism for imparting an inclination of the drum main body such that an outlet side thereof is downward. Characteristic, a device for unfolding work such as irregular shaped cloth pieces.