JPH0728997B2 - Square fabric spreading device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a square cloth spreading device for spreading square cloth such as wrapping cloth, sheets, bed cloth or hanging cloth.

[0002]

2. Description of the Related Art For example, in a laundry factory or the like, a rectangular cloth having a relatively large edge width such as sheets is pressed by a rotary roll type cloth product pressing machine or folded by a conveyor type cloth product folding machine. Although the dripping work is performed, when supplying the rectangular cloths to these processing devices (hereinafter, simply referred to as a press machine), it is necessary to spread the rectangular cloths into a rectangular shape in advance. Conventionally, two workers have searched for the four corners of the square cloth and grasped the corners respectively, and the two workers who have grasped the respective corners respectively perform the unfolding work of such a square cloth. It was done by expanding both hands as much as possible.

The applicant of the present invention, as disclosed in Japanese Patent Laid-Open No. 4-9198, uses a holding means to hold one corner of a rectangular cloth and a part of the edge adjacent to the corner. We have proposed a square-shaped cloth edging device that can automatically carry out the edging of a square-shaped cloth by simply holding it.

As shown in FIG. 9, this known (Japanese Patent Laid-Open No. 4-9198) quadrilateral edging device holds two left and right holders provided on a movable body 2 which is movable back and forth in a gantry front and rear direction. With the means 22 and 23 holding one corner of the rectangular cloth Y and the edge adjacent thereto, the moving body 2 is drawn in from the cloth mounting position P ′ by the chain line 2 ′. The conveyors 5A to 5E are independently driven in the forward and reverse directions by the detection signals from the side edge detectors 71A to 71E that detect the presence or absence of the side edges of the cloth. The one side edge portion Yb of the square-shaped cloth on each of the conveyors is aligned (lined out) linearly. As the holding means 22 and 23, an automatic holding device called an air chuck is used, and an edge portion (including one corner portion) of a rectangular cloth is set to a predetermined length (for example, 30 to 4).
By applying the two edge portions to the respective holding means 22 and 23 in a state of being stretched by about 0 cm), the edge portions of the cloth can be automatically held by the respective holding means 22 and 23. There is. . Also, in this way, the conveyor 5A-
The square-shaped cloth Y edging on 5E is discharged to the next process side (for example, the press process side) by the discharging device as indicated by arrow A, with the rimmed side edge portion Yb as the leading side. .

[0005]

However, when the square cloth having a relatively large area is unfolded, two workers respectively search and grasp the corners as in the conventional example described above. -When unfolding, there are two people involved in the unfolding work and the efficiency of the unfolding work is poor, and moreover, both hands with each corner have to be widely spread, and a lot of labor is required for the unfolding work. There was a problem that became.

Further, when the known edging device Z'shown in FIG. 9 is used, one edging operation of one of the rectangular shaped cloths can be performed relatively easily, but the side facing the edged side edge portion Yb is opposite. The edge portion Yd side remains unaligned (wrinkles) on each of the conveyors 5A to 5E, and for example, it was necessary to manually extend the uneven portion (symbol Yd portion) before pressing with a pressing machine. .

In view of the above-mentioned conventional problems, the invention of the present application, when unfolding the square-shaped cloth, is performed by only one operator and after edging one square-shaped cloth, It is an object of the present invention to provide a quadrangular cloth spreading device capable of automatically expanding the quadrangular cloth.

[0008]

SUMMARY OF THE INVENTION A rectangular cloth deploying device according to the invention of claim 1 of the present application is a rack having a front and back length longer than a length of a long side of a rectangular cloth to be treated, and a rack of the rack. A movable body that can move back and forth in the longitudinal direction of the gantry at a position near the upper part, and two holding means provided on the movable body and capable of detachably holding two edges of one edge of a rectangular cloth with a space therebetween. A moving body drive device for moving the moving body forward and backward within a range from a cloth delivery position near the front part of the gantry to a cloth pulling position near the rear part of the gantry; A mounting table that can support the rectangular cloth from below when the moving body retracts while holding the position, and a part of the mounting table described above, which is oriented in a horizontal orthogonal direction to the moving body moving direction. Installed and the forward and reverse of the conveyor Conveyor drive device that can be run in the direction, at a predetermined position on the conveyor, a side edge detector that detects whether or not the side edge of the rectangular cloth is located, the edge on the mounting table. The square-shaped cloth that has been taken out is sent out in a state in which the edged side edge portion is the leading side, and is sent from the top of the placing table to the end of the placing table on the cloth feeding side. A pinching conveyor that can feed the coming square-shaped cloth while pressing it, and the square-shaped cloth in a state in which the edging-side side edge portion of the square-shaped cloth is pinched and held at the starting end of the pressing conveyor. It is characterized in that an extension device having a vacuum device for sucking the trailing side portion of the same kind in a direction opposite to the transfer direction of the pressure conveyor is provided.

Further, in the invention of claim 2 of the present application, in the rectangular cloth spreading device of claim 1, a method of drawing the pressure-feeding conveyor side between the starting end of the pressure-feeding conveyor and the vacuum device. It is characterized in that a second stretching device for stretching the shaped cloth in a direction orthogonal to the traveling direction of the rectangular cloth is provided.

[0010]

The operation of the present invention will be described in relation to the method of using the rectangular cloth unfolding device. In the unfolding device of the first aspect of the invention, one worker, for example, dries the product while drying it (rounding). Searching for any one corner of the rectangular cloth (in the state of being), and moving the corner and an appropriate position of the edge adjacent to the corner (for example, a position away from the corner about the shoulder width of the person) It is held by each holding means of the body. In the expanding device shown in the figure, two temporary holding means are provided on the upper side of each holding means of the moving body, and when the two temporary holding means are held at two places of the cloth edge portion, the cloth edge portion is held. Are transferred to each holding means on the moving body side. For the sake of convenience, in the following description, the edge portion of the rectangular cloth held by the two holding means is referred to as a holding edge portion, and the edge portion opposite to the holding edge portion is referred to as an end edge portion. The side edge on the side of the holding means that holds the cloth corner between the edge and the end edge is referred to as the edge side edge, and the side edge opposite to the edge side edge. Will be referred to as a side edge portion on the opposite edge side.

Next, when the edge of the cloth is held by each holding means on the side of the moving body (one holding means holds the corner of the cloth), the moving body driving device moves (retracts) the moving body backward, The lower surface of the hanging portion of the rectangular cloth has a contact resistance with respect to the front edge of the mounting table and is sequentially drawn rearward. At that time, due to the contact resistance, the rectangular cloth is pulled in while being stretched in the longitudinal direction of the gantry.

Next, the rectangular cloths are sequentially drawn inward of the gantry by the retreating operation of the moving body, but when the side edge detector does not detect the existence of cloths, the signal drives the conveyor drive. The device is made to run the conveyor from the holding means side holding the cloth edge to the holding means side holding the cloth corner, and conversely the side edge detector detects the presence of cloth. In this state, the signal causes the conveyor drive device to drive the conveyor from the holding means side holding the cloth corner portion to the holding means side holding the cloth edge portion. Then, from this, the side edges of the rectangular cloth placed on the conveyor are positioned substantially linearly within the width of the reaction region of the side edge detector.

When the rectangular cloth is pulled over the mounting table over the entire length, the holding of the corners and edges of the cloth by both holding means is released, and the rectangular cloth is placed on the mounting table. It is placed with the edge portion on the rimming side extending linearly.

Subsequently, the square-shaped cloth with the edging is sent out from the mounting table in a state in which the edge-side edge of the cloth is the leading side. Is clamped and held at the start end of the squeezing conveyor of the stretching device, and at that moment, the trailing side part of the rectangular cloth is sucked by the vacuum device of the stretching device, The side portion is pulled in the direction opposite to the transfer direction of the pinching conveyor. Then, from that state, the squeezing conveyor is being driven, so that the rectangular cloth is fed later while being stretched in the traveling direction. Therefore, the square-shaped cloth that has passed through the pinching conveyor portion is in a state of being developed into a neat square, and is directly supplied to the post-process side (for example, the press process side).

After that, if the movable body is set to the initial state, the next work of expanding the rectangular cloth can be performed.

As described above, according to the rectangular cloth unfolding device of the invention of claim 1, when the rolled rectangular cloth is unfolded, one corner portion and the corner are formed at the cloth mounting operation position. By simply holding the proper positions of the adjacent edges by each holding means (temporary holding means), the process until the expanded square-shaped cloth is discharged out of the machine can be automatically performed.

Further, in the expanding device of the invention of claim 2 of the present application, in the expanding device of claim 1, the rectangular cloth which is drawn from the mounting table side to the pinching conveyor side by the second expanding device. Since it can be stretched in a direction orthogonal to the traveling direction of the square-shaped cloth, in combination with the stretching action in the cloth traveling direction by the stretching device according to claim 1, Shaped fabrics can be extended in both front and back and left and right directions.

[0018]

According to the quadrilateral cloth unfolding device of the invention of claim 1 of the present application, the two edge portions (one corner portion) of the quadrilateral cloth to be treated are respectively held by two holding means. , After the edging of one side edge of the square-shaped cloth, it is possible to automatically perform the whole process until the square-shaped cloth is developed into a square.
There is an effect that the unfolding work of the rectangular cloth can be easily performed by only one worker.

Further, in the rectangular cloth deploying device of the invention of claim 2, in addition to the stretching action of the stretching device of claim 1 in the fabric traveling direction, the fabric traveling direction of the second stretching device is Since the stretching action in the orthogonal direction works, there is an effect that the square-shaped cloth can be developed into a more neat square.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described with reference to FIGS. 1 to 8. FIGS. 1 to 7 show a square cloth spreading device according to the embodiments of the present invention. Shows the unfolded state of the rectangular cloth treated in this example.

The expansion device Z of the embodiment shown in FIGS.
For example, as shown in FIG. 8, for edging a rectangular cloth Y such as a sheet, a rectangular three-dimensional frame 1 having frame members assembled in the front, rear, left, right, and top, and the frame 1 A movable body 2 which can move back and forth in the longitudinal direction of the gantry at a position near the upper part of the gantry, and two positions which are provided at a predetermined distance in the horizontal left-right direction of the movable body 2.
In the range from the cloth transfer position P at the front part of the gantry to the cloth pull-in position Q at the rear part of the gantry, the two holding means 22 and 23 capable of detachably holding the two edge portions Ya respectively. The movable body drive device 3 for advancing and retreating, and the cloth mounting work position R on the front part of the gantry are provided at two positions separated by a predetermined distance in the horizontal direction, and two parts of the cloth edge part Ya are detachable. Two temporary holding means 82 capable of holding,
83, a position changing device 101 for displacing each of the temporary holding means 82, 83 between the cloth mounting work position R and the cloth transfer position P, and one provided on the gantry 1 and drawn to the rear of the gantry. Mounting table 4 for supporting the shape cloth Y from below
And conveyors 5A to 5D forming a part of the mounting table 4.
(A total of four in the illustrated example), conveyor drive devices 6A to 6D (a total of four) that can move the respective conveyors 5A to 5D in the forward and reverse directions, respectively, and the rim side of the rectangular cloth Y. Side edge detectors 71A to 71D (four in total) that detect the edge Yb, an edge detector 72 that also detects the edge Yc of the rectangular cloth Y, and an edge on the mounting table 4. Device 1 for extending the formed rectangular cloth Y in the cloth advancing direction
1 (hereinafter, referred to as a first stretching device), a second stretching device 16 for stretching the rectangular cloth Y in a direction orthogonal to the traveling direction thereof, and the stretched rectangular cloth for the next process side. The discharge device 9 for discharging to (for example, the press process side) and the controller 10 for controlling the operation of the rimming device Z have a basic configuration.

Before giving a detailed description of each component, the outline of the operation of the edging device Z will be described. At the cloth mounting work position R, one corner C ₁ of the rectangular cloth Y (see FIG. 8) and the appropriate position (Ya 'or Yb') of the edge (Ya or Yb) adjacent to the corner C ₁ are held by the two temporary holding means 82, 83, respectively. Then, the position changing device 1
01 operates to move both temporary holding means 82 and 83 holding the square-shaped cloth upward while being displaced by an angle of 90 ° in the horizontal direction, so that both temporary holding means 82 and 83 temporarily transfer the cloth. The height H ₂ of each holding means 22, 23 waiting at the position P
(FIG. 4) After being raised to a higher position H ₃ , it is lowered to the same height as the holding means 22 and 23, and the height position H ₂
It is stopped by. Then, at the cloth transfer position P, the rectangular cloth Y held by the temporary holding means 82, 83 is transferred to the respective holding means 22, 23 on the moving body 2 side, and then the moving body 2 retracts. Then, the rectangular cloths held by the holding means 22 and 23 are pulled inward on the mounting table 4. At that time, each side edge detector 71A to 71
D, each conveyor 5A to 5D, and each conveyor drive device 6
A to 6D act so that one side edge portion Yb of the rectangular cloth Y is aligned linearly on the mounting table 4. Then, after the holding means 22 and 23 are released from holding, the edging rectangular cloth Y is stretched in the cloth advancing direction by the first stretching device 11 and the second stretching device 16 is provided. 8 is stretched in a direction orthogonal to the cloth traveling direction by
As shown in (3), it is fully unfolded, and subsequently, the discharging device 9 operates so as to discharge the square-shaped cloth Y to the next process side while unfolded. In addition, the moving direction of the moving body 2 (rear direction)
And the discharge direction of the cloth by the discharge device 9 (the right direction indicated by the arrow A in FIG. 7) are displaced by 90 ° in the horizontal direction.

The gantry 1 has a front-rear length longer than the length of the long side of the rectangular cloth Y to be treated, and the rectangular cloth Y
It has a height slightly higher than the length on the long side of.

In this unfolding device Z, one side of the front part of the gantry 1 on the side opposite to the cloth discharging direction (right direction) and orthogonal to the cloth discharging direction is used as the temporary holding means 82, 83. A cloth mounting work position R for holding the edge of the rectangular cloth Y is set. Therefore, the work of mounting the rectangular cloth is performed from the side surface opposite to the cloth discharging direction.

The temporary holding means 82, 83 are mounted on a rod-shaped mounting base 81 at predetermined intervals (for example, at intervals of 40 to 50 cm, which is about the shoulder width of a person). Each temporary holding means 8
2,83 are clip type air chucks that operate with compressed air.

Each of the temporary holding means 82 and 83 is operated by the position changing device 101 by the cloth mounting work position R and the cloth transfer position P.
I am trying to be able to displace between and. The position changing device 101 includes a vertical drive device 102 having a servo motor 103, an elevating body 105 that can be moved up and down by the vertical drive device 102, and guide members 107 and 108 that change the posture of a mounting base 81. There is.

The mounting base 81 on which the temporary holding means 82 and 83 are mounted is mounted on the lifting body 105 so that the posture can be freely changed between a posture parallel to the front-rear direction and a posture parallel to the left-right direction. There is. When the lifting body 105 is at the lowermost position, the mounting base 81 is maintained in a horizontal posture parallel to the front-rear direction at a position close to the left side surface of the machine body, and the lifting body 105 waits for the holding means 22, 23. It is designed so that the mounting base 81 is changed in posture in the horizontal direction by an angle of 90 ° while being raised, and is in a posture parallel to the left-right direction.

The lift 105 is suspended and supported by a pair of left and right chains. Then, the servo motor 103
By the reverse rotation drive, the lifting / lowering body 105 can be stopped at each of the lowermost moving position, the uppermost moving position, and an intermediate position slightly lower than the uppermost moving position. Further, at the lowermost moving position of the lifting body 105, each temporary holding means 8
2, 83 are located at the mounting work height H ₁ (FIG. 4), and at the intermediate upper moving position of the lifting body 105, the temporary holding means 82,
83 is located at the same height H ₂ as the holding means 22 and 23 on the moving body 2 side waiting at the cloth delivering position P, and as shown in FIG. The whole (or almost the whole) of the rectangular cloth Y hung from the temporary holding means 82, 83 is positioned at a high height H ₃ so as to be separated from the floor surface F.

On the upper part of the gantry 1, one guide rail 1a is erected in the front-rear direction at an intermediate position in the left-right direction. The guide rail 1a guides the movable body 2 so that it can move back and forth in the longitudinal direction of the gantry. As shown in solid lines in FIGS. 1 and 2, the movable range of the moving body 2 in the front-rear direction is such that the moving body 2 is at the front part of the gantry and the holding means 22, 23 hold the square cloth Y temporarily holding means 82. , 83 from the cloth transfer position P that can be received from the cloth transfer position P, the movable body 2 is at the rear part of the gantry as shown by the chain line in FIG. It is set in the range up to.

The moving body 2 is a flat plate 2 having a length in the left-right direction which is slightly smaller than the shoulder width of a person (a length of about 30 to 40 cm).
Hanging plate 2 bent downward on both left and right sides of 0
1, 21 are provided. Further, holding means 22 and 23 for holding cloths are attached to the front end portions of the hanging plates 21 and 21, respectively. The space (40 to 50 cm) between the temporary holding means 82 and 83 is larger than the space (30 to 40 cm) between the two holding means 22 and 23, and the temporary holding means 82 and 83 hold the holding means. Two
At the positions corresponding to 2 and 23, both holding means 22 and 23 are inserted between the temporary holding means 82 and 83. Also, in this embodiment, when viewed from the front side of the gantry,
The holding means 22 located on the right side is for holding the cloth corner portion C ₁ (FIG. 8), and the holding means 23 located on the left side is for holding the cloth edge portion.

Each holding means 22, 23 is a temporary holding means 8
As with Nos. 2 and 83, clip-type air chucks that operate with compressed air are used.

The movable body drive device 3 has an end chain between the sprockets provided at the front and rear portions of the gantry 1, and winds each end of the chain around the sprocket. By fixing the sprocket to one side and rotating one sprocket in both forward and reverse directions by a motor (servo motor) 31, the moving body 2 can be moved forward or backward along the guide rail 1a.

The mounting table 4 is installed at a position slightly lower than the forward and backward height positions of the holding means 2, 23. In this embodiment, the mounting table 4 includes a base plate 41 that is relatively short in the front-rear direction, and a total of four conveyors 5A to 5D that are sequentially arranged side by side at the rear edge of the base plate 41. .

At the front edge of the base plate 41, there is formed a protruding portion 42 that protrudes forward in a tapered shape immediately below the forward / backward movement position of the moving body 2. The projecting portion 42 has a function of spreading the cloths to the left and right and expanding the cloths when the cloths are held by the holding means 22 and 23 and pulled inward.

Each of the conveyors 5A to 5D is arranged so as to be able to travel in a direction orthogonal to the moving body moving direction.
The length of each of the conveyors 5A to 5D in the front-back direction of the gantry is set to be substantially the same as or longer than the length of the long side of the rectangular cloth Y to be processed.

The conveyors 5A to 5D are made to travel in both forward and reverse directions by individual conveyor drive devices 6A to 6D.

Immediately above each of the conveyors 5A to 5D, side edge detectors 71A to 71D for detecting whether or not a side edge of the cloth exists at a predetermined position on each of the conveyors 5A to 5D are provided. Correspondingly installed. In this embodiment, photoelectric tubes are used as the side edge detectors 71A to 71D. Each of the side edge detectors 71A to 71D is fixed to the frame of the gantry 1 that is assembled in parallel with the moving body advancing / retreating direction, and is closer to one end in the traveling direction of each of the conveyors 5A to 5D (cloth corner). It is possible to detect whether or not the cloth side edge portion is present on the upper surface of the portion holding means 22 side (closer to the end portion). Moreover, each of the conveyors 5A to 5D is
The lines connecting the respective detection positions are arranged in a straight line.

The signals from the side edge detectors 71A to 71D are transmitted to the controller 10, respectively.
Based on the respective signals, the controller 10 individually operates the conveyor drive devices (6A to 6D) of the conveyor corresponding to the detection position of the side edge detector in either the forward or reverse direction. That is, when the side edge detector (for example, the side edge detector 71A) is in the cloth non-detection state, the side edge detector 71 in the cloth non-detection state
A conveyor drive device 6A corresponding to A is connected to the conveyor 5
A is operated so as to run in the cloth pushing direction (to the right), and conversely, when the side edge detector (for example, the side edge detector of reference numeral 71A) is in the cloth detection state, the cloth detection is performed. The conveyor drive device 6A corresponding to the side edge detector 71A in the state is operated so that the conveyor 5A travels in the cloth drawing direction (left direction). As described above, when the conveyors 5A to 5D corresponding to the side edge detectors 71A to 71D are individually made to travel in the forward and reverse directions based on the signals from the side edge detectors 71A to 71D, the conveyors 5A to 5D are placed on the mounting table 4. Conveyor 5A for rectangular cloth
The portions located above 5D are corrected in position, and the side edge portion Yb of the rectangular cloth Y is linearly edged at a predetermined position.

Further, in each of the conveyors 5A to 5D, after the holding means 22 and 23 release the holding of the cloth (after the framing of the rectangular cloth Y is completed on the mounting table 4), the mounting table is set. The square-shaped cloth Y on 4 is driven at the same speed at the same time until it is completely sent out from the end of the conveyors 5A to 5D. The simultaneous driving of the conveyors 5A to 5D is also performed by a signal from the controller 10.

In this embodiment, four conveyors, four conveyor drive devices, and four side edge detectors are used. However, in other embodiments, they are used (conveyor, conveyor drive device, and side edge detectors). Part detectors) may be used one by one. In that case, the conveyor is installed with a width of about one as shown in the drawing, and is installed close to the rear end of the base plate 41, and another conveyor having a length reaching the cloth drawing position Q is provided at the rear end of the conveyor. It is necessary to provide a base plate. or,
Each of the conveyors 5A to 5D in the illustrated example may be divided into a plurality of narrow width conveyors, and one unit of narrow width conveyor may be wound around a common roll.

In this embodiment, a photoelectric tube is used as the end edge detector 72, and when the end edge Yc of the rectangular cloth Y approaches the frontmost conveyor 5A on the mounting table 4. In addition, the presence of the end edge portion Yc is detected. Then, the end edge detector 72 transmits to the controller 10 whether the cloth is detected or not detected. When the end edge detector 72 detects the presence of the cloth end edge Yc, the controller 10 is detected based on the signal.
The signal from causes the operation of the moving body drive device 3 to be immediately stopped.

At the end (right end) side of each of the edging conveyors 5A to 5D, a square cloth Y edging on the mounting table 4 is extended to the left and right (the cloth advancing direction). 1
And a second stretching device 16 for stretching the rectangular cloth Y in the front-back direction (direction orthogonal to the cloth advancing direction).

As shown in FIGS. 3, 5 and 6, the first extension device 11 includes a vacuum device 12 installed immediately below the end of the edging conveyors 5A to 5D, and a suction device of the vacuum device 12. Mouth 124 and edging conveyors 5A-5D
A damper device 13 that switches the course of the rectangular cloth Y sent from the end of the edging conveyors 5A to 5D between the end of the damper and the conveyor 13 of the damper device 13.
1 and a pinching conveyor 14 that is intermittently continuous.

The vacuum device 12 uses ducts 122, 122 by the blowers 121, 121 in the suction chamber 123 installed immediately below the ends of the edging conveyors 5A-5D.
It can be sucked through. Suction chamber 123
Is for accommodating a part of the quadrangular cloth Y that has been edged out and sent out from the end of the edging conveyors 5A to 5D, and has a front and rear length slightly longer than the front and rear length of the quadrangular cloth Y. It has a rectangular box shape having an appropriate depth.
The suction chamber 123 is open upward, and the upper opening serves as the suction port 124.

The damper device 13 includes the edging conveyor 5
It has a conveyor 131 interposed between the end of A to 5D and the start of the pinching conveyor 14, and a cylinder 132 that swings the conveyor 131 left and right. A roll 133 on the upper side of the conveyor 131 of the damper device 13 is pivotally supported, and the lower side of the conveyor 131 can be swung left and right by a push / pull operation by the cylinder 132. Then, in the contracted state of the cylinder 132, as shown in FIG. 5, the lower side of the conveyor 131 is pulled to the left side, and the lower end of the conveyor 131 is continuously connected to the starting end of the pinching conveyor 14 and the edging conveyors 5A to 5A.
The connection between the end of D and the suction port 124 is cut off. On the contrary, in the extended state of the cylinder 132, as shown in FIG. 6, the lower side of the conveyor 131 is pushed further to the right from the suction port 124, and the lower end of the conveyor 131 is separated from the starting end of the pinching conveyor 14 and sucked. Mouth 12
4 is to be released. 5 and 6, reference numeral 134 is a switching valve for the cylinder 132, and the switching valve 134 is operated by a signal from the controller 10 so that the cylinder 132 expands and contracts.

The pinching conveyor 14 includes two belts 1 on the left and right.
With 41 and 142 in contact with each other, the contact portions of both belts are driven to run downward.

Then, the first extension device 11 operates as follows. That is, during the edging operation of the cloth edge portion on the edging conveyors 5A to 5D side, the cylinder 132 of the damper device 13 is contracted as shown in FIG.
1 is pulled to the left. Then, when the edging work of the cloth edge portion is completed on the edging conveyors 5A to 5D, the edging rectangular cloth Y is the end of the edging conveyors 5A to 5D as indicated by the reference symbol Y ₁ . Is guided to the conveyor 131 of the damper device 13, and the leading-side end portion Yb ₁ of the rectangular cloth Y ₁ is sandwiched by the starting end portion of the pressure-conveying conveyor 14 while being linearly edged. Subsequently, latte emitted signal from the controller 10 at that moment, the cylinder 132 is caused to stretch the conveyor 131 of the damper device 13 as shown in FIG. 6 is pushed to the right, after that time how shape cloth Y ₁ The row side portion is sucked and housed in the suction chamber 123 by the suction action from the suction port 124, as indicated by reference numeral Y ₂ . Next, the trailing side portion of the rectangular cloth housed in the suction chamber 123 is the pinching conveyor 1.
4 is driven and is drawn to the pinching conveyor 14 side while being sequentially extended. Then, the rectangular cloth drawn to the side of the pinching conveyor 14 is transferred to the discharging device 9 side in a state of being completely expanded in a rectangular shape as indicated by reference numeral Y ₃ in FIG.

In this embodiment, the first extension device 11
Although the damper device 13 is provided in the first embodiment, the damper device 13 can be omitted in other embodiments. In that case, the start end of the pinching conveyor 14 is brought close to the end of each of the conveyors 5A to 5D for edging, and each of the conveyors 5A to 5D.
The edge of the square-shaped cloth on the edge side is directly inserted into the starting end of the pressure conveyor 14 from the end of
It is preferable that the suction action of the vacuum device 12 be intermittently activated so as to start at the moment when the edge portion of the rectangular cloth on the edge-out side is sandwiched by the starting end portion of the pressure conveyor 14.

The second extension device 16 includes a suction chamber 123.
It is provided between the suction port 124 and the starting end of the pinching conveyor 14. This second extension device 16 is shown in FIGS.
Also, as shown in FIG. 6, two horizontally long circulation brushes 161 and 162 are arranged side by side in the front-rear direction. As shown in FIG. 3, the circulation brushes 161 and 162 circulate in a direction in which upper surfaces are separated from each other by a motor (not shown) (the front circulation brush 161 travels forward and the rear circulation brush 162 moves forward). I will drive toward the rear).

In the second extension device 16, the circulation brushes 161 and 162 come into contact with the rectangular cloth Y ₂ pulled out from the suction chamber 123 as described above while traveling forward or backward. The rectangular cloth can be extended in the front-rear direction.
Although the first stretching device 11 described above stretches a rectangular cloth in the left-right direction, the second stretching device 16
Is for extending a rectangular cloth in the front-rear direction, and the cloth can be completely expanded into a rectangular shape by both of the stretching devices 11 and 16.

The start end of the discharging device 9 is connected to the end portion of the belt 142 on the side of the pinching conveyor 14 on which the square-shaped cloth is fed later. In this discharge device 9, the conveyor 9
1 is used, and the rectangular cloth Y ₃ (FIG. 6) that is transferred in the unfolded state on the belt 142 of the pinching conveyor 14 can be directly transferred onto the conveyor 91 of the discharging device 9. It has become. The conveyor 91 of the discharge device 9 is installed so as to travel in one direction (right direction) which is a horizontal orthogonal direction (horizontal direction) to the moving body advancing / retreating direction (front-back direction). In addition, for example, a conveyor on the side of the pressing device is connected to the end side of the conveyor 91 of the discharge device 9, and the cloth Y ₄ spread in a rectangular shape can be transferred from the conveyor 91 to the next process side as it is. It is like this.

The method of use and the operation of the rectangular cloth developing device Z shown in FIGS. 1 to 6 will be described. First, at the cloth mounting work position R, one corner C of the rectangular cloth Y to be processed
₁ (Fig. 8) and the proper place (Ya 'or Y) adjacent to it
b ') is mounted on each of the temporary holding means 82, 83 waiting at the mounting work height indicated by reference numeral H ₁ in FIG. Then, in response to the cloth holding signals of the temporary holding means 82 and 83, the servo motor 103 of the position changing device 101 operates in the chain winding direction, and the temporary holding means 82 and 83 remain in the cloth holding state. It can be moved upward while changing its posture in the range of 90 ° in the horizontal direction. The temporary holding means 82, 83 holding the cloths are temporarily held by the holding means 2 on the moving body 2 side.
Standby height of 2, 23 H ₂ are caused to upper moving to a height indicated at H ₃ high position than (Fig. 4), then the temporary holding means 8
The entire cloth held by Nos. 2 and 83 is lifted until it is separated (or almost separated) from the floor surface F as shown by reference numeral Y ₀ in FIG. 4, and the cloth Y ₀ is vertically stretched by its own weight. Like

Next, each temporary holding means 82, 83 descends from the height of H ₃ to the same height H ₂ as the holding means 22, 23 on the moving body 2 side and stops there, and then the temporary holding means 82. , 83
Then, the edge of the cloth held by the cloth is transferred to the holding means 22, 23 waiting at the cloth transfer position P.
The handing of the cloth edges is performed by holding the cloth edges between the holding means 22 and 23 between the temporary holding means 82 and 83, and then holding the temporary holding means 82 and 83. Be seen. The temporary holding means 82, 8
When 3 passes up and down the standby height H ₂ of the holding means 22 and 23, the moving body 2 moves slightly backward from the most advanced position (position of reference numeral 2 ″) in FIG.
Position) and the moving body 2 is advanced to the most advanced position indicated by reference numeral 2 ″ when the cloth edge portion is delivered.

When the cloth edges are transferred to the holding means 22, 23 on the moving body 2 side, the moving body driving device 3 is driven by the signal from the controller 10 to move the moving body 2 backward. At that time, one edge (right side) of the rectangular cloth Y is placed on the mounting table 4 by the edging device including the side edge detectors 71A to 71D, the conveyors 5A to 5D, and the conveyor drive devices 6A to 6D. The edges will be lined up in a straight line.

When the moving body 2 further moves backward and the end edge detector 72 no longer detects the presence of cloth as shown in FIG. 2 (the cloth end edge Yc is the end edge). Immediately after passing the detection position by the partial detector), the operation of the moving body drive device 3 is immediately stopped by the signal from the end edge detector 72. At this time, the conveyor drive devices 6A to 6D may be stopped at the same time. Next, when the holding by the holding means 22 and 23 is released,
The cloth edge portion Ya held by the holding means 22 and 23.
Falls on the mounting table 4. In this state, the two corner portions C ₁ and C ₂ (FIG. 8) of the edge portion Yb on the rimming side are linearly extended. In this embodiment, the temporary holding means 82, 83 and the holding means 22, 23 are used to form a rectangular cloth Y.
Although a part Ya ′ (FIG. 8) of the edge portion Ya on the short side in FIG. 8 is held, in another example of use, a portion of the edge portion on the long side (for example, the symbol Yb in FIG. 8 is indicated. It is also possible to retain the part ('). In that case, the side edge portion of the rectangular cloth Y on the short side (edge portion Yc in FIG. 8) is edged.

When the framing of the rectangular cloth Y is completed on the placing table 4, the signals from the controller 10 cause the edging conveyors 5A to 5D to operate simultaneously in the pushing direction (to the right), and the placing table is moved. The quadrangular cloth Y on the top of 4 is discharged from the end of the conveyor. In this way, the square-shaped cloth discharged from the end of the conveyor is guided by the conveyor 131 of the damper device 13 at the leading edge of the squeezed edge, and is sandwiched between the start ends of the pressure conveyors 14 (reference numeral in FIG. 5). Yb ₁ ), at that moment, the cylinder 132 of the damper device 13 extends to push the conveyor 131 of the damper device to the right side as shown in FIG. Then, due to the suction action of the vacuum device 13, the symbol Y in FIG.
The trailing side portion of the rectangular cloth at the position ₁ is once sucked and housed in the suction chamber 123, as indicated by reference numeral Y ₂ .

Then, from that state, the pinching conveyor 14
Is operated, the trailing side portion Y of the rectangular cloth is
₂ is drawn in between the pinching conveyors 14 while being stretched in the forward direction and being stretched in the front-rear direction by the circulation brushes 161 and 162 of the second stretching device 16, so that the cloth is rectangular. Will be able to be deployed.

Cloth Y expanded in a square shape in this way
₃ (FIG. 6) is transferred onto the conveyor 91 of the discharge device 9, and then transferred from the conveyor 91 side to the next process (for example, press process) side.

After the position changing device 101, the moving body driving device 3, the damper device 13 and the like operate as described above,
Each is returned to the initial state, and the next framing work can be performed.

FIG. 7 shows an installation example in which a plurality of the rectangular cloth expanding devices Z shown in FIGS. 1 to 6 are arranged in parallel.
In this rectangular cloth unfolding device Z, the cloth mounting operation position R for mounting the cloth edges on the temporary holding means 82, 83 is
Since it is provided on the side of the machine body opposite to the discharge direction (right direction in FIG. 7) of the unfolded rectangular cloth Y, a state in which the interval W between the rectangular cloth edging devices Z, Z is reduced Even if they are installed side by side, there is no problem in their work. Further, the movable carriage X that carries the cloth to be treated may be located in an extra space on the side of the cloth mounting work position R as shown in FIG. As described above, in the rectangular cloth expanding device Z of the illustrated embodiment, when a plurality of the cloth expanding devices Z are installed side by side in the factory,
It can be installed in a small space.

[Brief description of drawings]

FIG. 1 is a perspective view of a rectangular cloth deploying device according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a view on arrow III in FIG.

FIG. 4 is an explanatory view of a method of using the rectangular cloth deploying device of FIG.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a state change diagram of FIG.

FIG. 7 is a plan view when a plurality of the rectangular cloth deploying devices of FIG. 1 are installed side by side.

8 is a development view of a rectangular cloth processed by the rectangular cloth expanding device of FIG. 1. FIG.

FIG. 9 is a plan view of a known rectangular cloth edging device.

[Explanation of symbols]

1 is a pedestal, 2 is a moving body, 3 is a moving body driving device, 4 is a mounting table, 5A to 5D are conveyors, 6A to 6D are conveyor driving devices, 9 is a discharging device, 10 is a controller, 11 is an extending device, 12 Is a vacuum device, 13 is a damper device, 1
4 is a pinching conveyor, 16 is a second extension device, 22, 23
Is a holding means, 71A to 71D are side edge detectors, 82, 8
3 is a temporary holding means, 101 is a position changing device, 102 is an up-and-down drive device, 105 is an elevating body, 107 and 108 are guide members, P is a cloth delivery position, R is a cloth loading work position, Y
Is a rectangular cloth.

Claims (2)

[Claims] 1. A gantry (1) having a front-rear length longer than a length of a long side of a rectangular cloth (Y) to be treated, and a reciprocating movement in a gantry front-rear direction at a position near an upper portion of the gantry (1). A movable body (2) that can be freely moved, and two movable body (2) that are provided on the movable body (2) and that can hold two edge portions (Ya) of a rectangular cloth (Y) detachably at intervals. A moving body drive device for moving the holding means (22, 23) and the moving body (2) back and forth within a range from a cloth transfer position (P) near the front of the gantry to a cloth retracting position (Q) near the rear of the gantry. (3) and each of the holding means (2) on the mount (1)
2, 23) while holding the two positions of the edge of the cloth, when the moving body (2) retracts, a mounting table (4) capable of supporting the square cloth (Y) from below, A conveyor (5A to 5D) that is a part of the writing table (4) and is installed in a direction orthogonal to the moving body moving direction, and the conveyor (5).
A-5D) and a conveyor drive device (6A-6D) capable of traveling in forward and reverse directions, and the conveyor (5A-5D)
Side edge detectors (71A to 71) that detect whether or not the side edge (Yb) of the rectangular cloth (Y) is located at a predetermined position above.
D) and the rectangular cloth (Y) edging on the mounting table (4) is sent out in a state where the edged side edge portion is the leading side, and Stand (4)
And a clamping conveyor (14) capable of conveying the rectangular cloth (Y ₁ ) fed out from the placing table (4) to the end portion of the cloth feeding side of the same while nipping it, and the clamping conveyor (14). (14)
At the start end of the rectangular cloth (Y ₁ ) on the edge side (Y
An extension device (11) having a vacuum device (12) for sucking the trailing side portion of the rectangular cloth in the direction opposite to the transfer direction of the pressure conveyor (14) while holding and holding b ₁ ). ) Is provided, the device for deploying a rectangular cloth. 2. The pinching conveyor (1) according to claim 1,
Between the starting end of 4) and the vacuum device (12), the rectangular cloth (Y ₂ ) drawn into the pinching conveyor (14) side is orthogonal to the traveling direction of the rectangular cloth. A device for deploying a rectangular cloth, comprising a second stretching device (16) for stretching the fabric in the direction of movement.