JPH1024200A - Bed sheet automatic placement method in washed bed sheetspreader and automatic placement device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To place washed bed sheets automatically in a washed bed sheet spreader. SOLUTION: A bed sheet is grasped and lifted by an intermediate part of a bed sheet clamping means A, after the lowermost end of the bed sheet is grasped and released by a lowermost bed sheet end clamping means B and the intermediate part clamping means A, it is guided and moved by a guiding means C and the Iowermost bed sheet end clamping means B, the last edge of the bed sheet is grasped by a last bed sheet end clamping means D, the lower left end of a bed sheet suspended by a lower left bed sheet end clamping means E is grasped and developed flat by turning the lower left end clamping means E, and the lowermost end clamping means B, the last edge clamping means D and the lower left end clamping means E are moved and returned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically inserting sheets in a washed sheet extender and an apparatus for automatically loading sheets in a washed sheet extender.

[0002]

2. Description of the Related Art Various types of washed sheet extenders have been developed for spreading a flat article such as a washed sheet (hereinafter referred to as a sheet) before finishing the ironing. Then, the sheets are manually mounted on the washed sheet extender by a worker.

[0003]

In this prior art, there is a problem that the worker is indispensable during the mounting work because the mounting is performed manually by the worker.

The present invention has been made for the purpose of solving such problems of the prior art.

[0005]

Means for solving the above problems will be described below with reference to FIG. 1 corresponding to one embodiment.
explain. The present invention grasps and lifts the washed sheets S which have been rolled up by the sheet middle clamping means A which moves in the vertical direction, and grasps the lowermost end of the sheets S by the sheet bottommost clamping means B. After releasing the sheet S, the sheet S is guided and moved by the guide means C and the sheet lowermost clamp means B,
The bottom end of the sheet S is grasped by the sheet end clamp means D, and the lower left end of the sheet S suspended by the sheet bottom end clamp means B and the sheet rear end clamp means D by the sheet lower left end clamp means E. The sheet S is developed by turning the left end clamp means E to unfold the sheets S in a plane, and moving and returning the sheet bottom end clamp means B, the sheet rear end clamp means D, and the sheet bottom left end clamp means E to wash the sheets S. This is a method for automatically inserting sheets in a washed sheet extender that automatically inserts sheets into a sheet.

[0006] In such a configuration, when the rolled washed sheet S is placed under the intermediate sheet clamping means A and the intermediate sheet clamping means A is actuated, the washed sheets S become one piece. Each sheet is automatically loaded into the washed sheet extender.

[0007]

FIG. 1 is a diagram showing an embodiment of the present invention. In FIG. 1, A is a sheet intermediate clamping means, B is a sheet bottommost clamping means, C is a guide means, D is a sheet end clamping means, and E is a sheet lower left end clamping means.

As shown in FIG. 2, the sheet middle clamping means A moves downward to grip (activate) the washed sheets S, and moves upward to lift the washed sheets S.

As shown in FIG. 3, the lowermost sheet clamping means B moves leftward to grasp the lowermost end of the sheet S (actuate), and returns to the right to move the sheet S rightward. The lowermost end of the sheet S is detected by a sensor B1 constituting the sheet lowermost clamp means B. Sensor B1
, The height of the sheet intermediate portion clamping means A is controlled.

When the sheet bottom end clamping means B grasps the lowermost end of the sheet S, the sheet intermediate clamping means A returns to release the sheet S as shown in FIG. The sheet bottom end clamping means B holds one of the four corners (any of a to b) of one sheet shown in FIG. Even if several sheets are picked up by the sheet middle clamping means A,
Since the sheet has only one lowermost point, the sheet lowermost clamping means B holds only one sheet.

As shown in FIG. 6, the guide means C guides the sheet S which moves rightward by the lowermost sheet clamp means B, ie, moves rightward by return. A pipe is used as the guide means C.

As shown in FIG. 7, the sheet rear end clamping means D moves upward to grip the rear end of the sheet S (operation). The lowermost end of the sheet S is detected by a sensor D1 constituting the sheet end clamp means D. By the operation of the sensor D1, the sheet rear end clamping means D operates. When the bottommost sheet clamping means B grasps the corner A of the sheet S shown in FIG. 4, the rearmost end of the sheet S guided by the guide means C becomes a corner C which is diagonal to the corner A, and the sheet last. The end clamping means D grasps the corner C as shown in FIG.

As shown in FIG. 8, the sheet lower left end clamping means E moves upward to grip the lower left end of the sheet S suspended by the sheet lowermost clamping means B and the sheet rearmost clamping means D (see FIG. 8). Operation). The lower left end of the sheet S is detected by a sensor E1 constituting the sheet lower left end clamping means E. By the operation of the sensor E1, the sheet lower left end clamping means E moves up, down, left and right, and grasps the lower left end of the sheet S (operation). When the sheet bottommost clamp means B grabs the corner A of the sheet S shown in FIG. 5, the sheet lower left end clamp means E grabs the corner B as shown in FIG.

When the lower left end of the sheet is gripped at the lower left end of the sheet, the sheet lower left end clamping means E turns 90 degrees upward from the front of the sheet to the rear and upward. Then, as shown in FIG. 9, the sheets are developed in a plane. The corner d is hanging.

Sheet bottommost clamping means B, sheet bottom end clamping means D and sheet bottom left end clamping means E
As shown in FIG. 10, the sheet is moved onto a conveyor C constituting a washed sheet expanding machine, and the sheet bottom-most clamp means B, the sheet-end clamp means D, and the sheet-bottom left-end clamp means E are returned, that is, the sheets are returned. When S is released, the sheet S is put on the conveyor C and is automatically loaded into the washed sheet extender (claim 1).

As shown in FIG. 8, when the lower left end (corner b) of the sheet is located behind the lower right end (corner d) of the sheet, the lower left end clamping means E of the sheet is moved upward from the front of the sheet to the rear and upward. Even if the sheet S is turned 90 degrees, the sheets S do not overlap. However, as shown in FIG. 11, when the sheet bottom left end (corner b) is forward and the sheet bottom right end (corner d) is back, the sheet lower left end clamping means E is turned 90 degrees from the front to the back and upward from the front of the sheet. If this is done, the sheet S will be folded, and in that state, the sheet S will be thrown into the washed sheet extender. Therefore, as shown in FIG. 11, a sheet overlap front / rear detecting means F for detecting the front / rear overlap of the lower right end of the sheet and the lower left end of the sheet is provided (claim 2). The sheet overlap front / rear detecting means F does not include the sheet S in front of the sheet overlap front / rear detecting means F when the sheet lower left end clamp means E turns and the sheet lower left end overlaps with the sheet lower right end. On the other hand, if the sheet bottom left end and the sheet bottom right end overlap and do not turn (as shown in FIG.
Turn. ), A sheet S exists in front of the sheet overlap front / rear detecting means F. The turning direction of the sheet lower left end clamping means E is determined based on the presence or absence. In the case shown in FIG. 11, when the sheet lower left end clamp means E is turned 90 degrees from the front to the rear and upward from the paper surface, the sheets S are folded and the sheet overlap front / rear detecting means F is activated. When the sheet overlap front / rear detecting means F operates, the sheet lower left end clamping means E is turned in the opposite direction. When the sheets S no longer overlap, the sheet overlap front / rear detecting means F returns, but the sheet lower left end clamp means E is further turned in the reverse direction. In this case, the lower right end of the sheet hangs down and is located in front of the conveyor C, the lower left end of the sheet is horizontal and located behind the conveyor C, but the driving of the conveyor C, the sheet bottom end clamping means B, and the sheet end end clamping means When the timing of returning the sheet D and the sheet lower left end clamping means E is set, the sheets S do not overlap.

The above is the case where the sheet lower left end clamp means E is provided. As shown in FIG. 12, instead of the sheet lower left end clamp means E, a sheet lower right end clamp means G including a sensor G1 is provided. The sheet S suspended by the sheet lowermost clamp means B and the sheet rearmost clamp means D by the sheet lower right end clamp means G
The lower right end of the sheet is grasped, and the sheet lower right end clamping means G is turned to unfold the sheet S in a plane, and the lowermost sheet lowermost clamping means B, the sheet rearmost end clamping means D, and the sheet lower right end clamping means G are moved and returned. The sheets S may be automatically loaded into the washed sheet extender (claim 3). Also in this case, the sheet overlap front / rear detecting means F for detecting the front / rear overlap between the lower right end of the sheet and the lower left end of the sheet.
When the sheet lower right end and the sheet lower left end overlap and turn by the turning of the sheet lower right end clamping means G, the turning direction of the sheet lower right end clamping means G is detected. Then, the sheet lower left end clamping means G is turned in the reverse direction to prevent the sheets S from being folded.

Further, the above is the case where the sheet lower left end clamp means E or the sheet lower right end clamp means G is independently provided. As shown in FIG. 13, the sheet lower left end clamp means E, the sheet lower right clamp means are provided. G are provided, the lower left end of the sheet and the lower right end of the sheet are grasped, and the lower left end clamping means E and the lower right end clamping means G of the sheet are turned in opposite directions to each other to unfold the sheet S into a flat shape. B, the sheet rear end clamp means D, the sheet lower left end clamp means E, and the sheet lower right end clamp means G are moved and returned to the sheet S.
May be automatically loaded into the washed sheet extender (claim 5). In this case as well, a sheet overlap front / rear detecting means F for detecting the front / rear overlap of the lower right end of the sheet and the lower left end of the sheet is provided. When the left end overlaps and turns, the turning direction of the sheet lower left end clamping means E is detected, the sheet lower left end clamping means E is turned in the opposite direction, and the sheet lower right end clamping means G grasps the sheet lower right end and turns. (Claim 6) or when the lower right end of the sheet and the lower left end of the sheet overlap by turning of the lower right end clamp means G of the sheet, the turning direction of the lower right end clamp means G of the sheet is detected, and the lower right end clamp means G of the sheet is detected. Is turned in the opposite direction, and the sheet lower left end clamping means E is By gripping the end and turning (claim 7), the sheet lower left end clamp means E and the sheet lower right end clamp means G simultaneously grab the sheet lower left end and the sheet lower right end and approach the sheet S by the reverse turning approaching. Not to be damaged.

The above operations are sequentially controlled by control means (not shown).

Further, the above is a method of automatically feeding sheets in a washed sheet extender, and is an invention of the method. The sheet sheet intermediate portion clamping means A for grasping, lifting and releasing a rolled washed sheet, Sheet lowermost clamp means B for grasping the lowermost end of the sheet, guide means C for guiding the sheet to be moved by the movement of the sheet lowermost clamp means B, sheet rearmost clamp means D for grasping the rearmost end of the sheet, The sheet lower left end clamp means E for grasping the lower left end of the sheet suspended by the sheet bottom end clamp means B and the sheet rear end clamp means D, and control means for controlling the respective means (Claim 8) ) Or a sheet bottom gripping the lower right end of the suspended sheet instead of the sheet lower left end clamping means E The right end clamp means G is inserted (claim 10), the sheet lower right end clamp means G is added to the sheet lower left end clamp means E (claim 12), and the overlap before and after the sheet lower right end and the sheet lower left end are detected. The invention similar to the method of the present invention can be realized by adding a sheet overlap before and after detecting means F (claims 9, 11, 13, and 14) to the invention of a product, that is, an automatic sheet feeding device in a washed sheet extender. Is obtained.

FIG. 14 shows an example of a washed sheet extender into which washed sheets are loaded by the automatic sheet loading method or the automatic sheet loading apparatus according to the present invention. That is, the input conveyor means 1 for transferring sheets from the front to the rear of the machine, and the input conveyor means 1
Guide panel 2 positioned on both sides of the sheet to reduce the width of the sheet
Detecting means 3 located at the rear end of the feeding conveyor means 1 for detecting both corners of the rear end of the sheet; and detecting the sheet at a lower position behind the feeding conveyor means 1 after the sheet is detected. A detection clamp means 4 for clamping both corners of the end; a rearward position of the detection clamp means 4 for advancing forward to receive both rear corners of the sheet from the detection clamp means 4; And extension clamp means located at the rear sides of the machine and advancing to the center to receive both rear corners of the sheets from the transport clamp means 5 and then returning to the original position 6 and control means 7 for controlling the feeding conveyor means 1, the detection clamp means 4, the transport clamp means 5, and the expansion clamp means 6, and automatically detects, clamps and transports both corners at the rear end of the sheet. To expand It is.

In the apparatus constructed as described above, when sheets are put into the feeding conveyor means 1, both rear corners of the sheets are sandwiched by the detecting clamp means 4 and mounted on the washed sheet expanding machine.

The feeding conveyor means 1 is for transferring sheets from the front to the rear of the machine.
Is for narrowing the width of the sheets positioned on both sides of the feeding conveyor means 1. When the sheet is placed on the moving conveyor C, the front end of the sheet is transported rearward by the conveyor C as the leading end. Both sides of the sheet are squeezed along the guide panel 2, and the sheet is fed in an elongated state. The two corners at the back end of the sheet are necessarily the last.

The detecting means 3 is located at the rear end of the feeding conveyor means 1 and detects both corners at the rear end of the sheet.
A pair of corner sensor reflectors, a corner sensor, and a detector (not shown) that receives the outputs of the corner sensor and detects both corners at the rear end of the sheet. A plurality of corner sensors are arranged on the left and right sides, each detecting a change (gradually narrowing) in width to the rear end corner of the sheet formed in an approximately inverted triangle, or detecting the rear end corner of the sheet. Each passage is detected. The detector detects both the rear corners of the sheet.

The detecting clamp means 4 is located at the lower rear side of the feeding conveyor means 1 and clamps both corners of the sheet at the detected rear end. The clutch / brake drive roll 41, the clutch / brake idler It is composed of a roll 42 and the like. Clutch / brake drive roll 4
1 and the clutch / brake idler roll 42 are divided into two parts, left and right, and operate separately. A part of the sheet leaving the feeding conveyor means 1 is a corner at the rear end of the sheet,
Until each comes, clutch / brake drive roll 41,
It is fed downward while being sandwiched between the clutch / brake idler rolls 42. When the corner at the rear end of the sheet is detected, the clutch / brake drive roll 41 or the clutch / brake idler roll 42 on either the left or right detected by the detecting means 3 brakes and sandwiches the rear end corner of the sheet. On the other hand, the corner at the back end of the sheet is not detected,
It is fed by a clutch / brake drive roll 41 and a clutch / brake idler roll 42 that have not been brake-stopped. When the rear end corner of the sheet is detected, the clutch / brake drive roll 41 and the clutch / brake idler roll 42 stop the brake and sandwich the rear end corner of the sheet.

The transport clamp means 5 is located behind the detection clamp means 4 and moves forward to move forward.
And then return to the original position, so that the rear corners of the sheet held by the detection clamp means 4 can be moved to a predetermined position.

The expansion clamping means 6 is located at the rear side of the machine, advances to the center, receives both corners at the rear end of the sheet from the transportation clamping means 5, and then returns to the original position. Both corners of the rear end of the sheet held by the clamping means 5 can be widened.

The control means 7 controls the feeding conveyor means 1 and in accordance with the output from the detection means 3, the detection clamp means 4, the transport clamp means 5, and the expansion clamp means 6 are sequentially operated.
Control.

Next, the operation will be described. When the power of the control means 7 is turned on, the feeding conveyor means 1 and the detection clamp means 4 are driven. When the sheets are put into the feeding conveyor means 1, the sheets are conveyed backward by the feeding conveyor means 1, and both corners at the rear end thereof are sandwiched by the detection clamp means 4. After confirming that it has been caught,
Operates to receive both corners at the rear end of the sheet from the detecting clamp means 4, and thereafter return to the original position. Upon confirming that the transport clamp means 5 has returned, the expansion clamp means 6 is activated, receives the rear corners of the sheet from the transport clamp means 5, and then returns to its original position.

[0030]

As described above, the present invention provides:
Grasp the washed sheets rolled up by the sheet middle clamping means moving up and down, lift and grab the lowermost end of the sheets by the sheet lowermost clamp means,
After the sheet is released by the sheet intermediate clamping means, the sheet is guided and moved by a guiding means and a sheet lowermost clamping means, and a sheet rear end clamping means is gripped at the rear end of the sheet, and a sheet lower left end clamping means. Gripping the lower left end of the sheet suspended by the sheet bottom end clamping means and the sheet rear end clamping means, and turning the sheet lower left end clamping means to unfold the sheet into a planar shape, and The sheet is automatically loaded into the washed sheet extender by moving and returning the clamp means, the sheet end clamp means and the sheet lower left end clamp means. Therefore, the washed sheets are automatically loaded into the washed sheet extender. Therefore,
According to the present invention, an effect is obtained that an operator is not required during the mounting operation.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing one embodiment of the present invention.

FIG. 2 is a diagram illustrating a sheet intermediate portion clamping means constituting the present invention.

FIG. 3 is a view for explaining a sheet bottom end clamping means constituting the present invention.

FIG. 4 is a view for explaining a sheet bottommost clamp means constituting the present invention;

FIG. 5 is a view showing a corner of a sheet.

FIG. 6 is a diagram illustrating guide means constituting the present invention.

FIG. 7 is a view for explaining a sheet rear end clamping means constituting the present invention.

FIG. 8 is a view for explaining a sheet lower left end clamping means constituting the present invention.

FIG. 9 is a view showing a state after turning of a sheet lower left end clamping means constituting the present invention.

FIG. 10 is a diagram showing a state in which sheets are put into a washed sheet extender.

FIG. 11 is a diagram illustrating a sheet overlap front / rear detecting means which constitutes the present invention.

FIG. 12 is a view for explaining a sheet lower right end clamping means constituting the present invention.

FIG. 13 is a diagram illustrating a case where both a sheet lower left end clamping unit and a sheet lower right end clamping unit are provided.

FIG. 14 is a diagram illustrating a washed sheet extender.

[Explanation of symbols]

 A Sheet middle clamping means B Sheet bottom end clamping means C Guide means D Sheet bottom clamping means E Sheet bottom left end clamping means F Sheet overlap front / rear detection means G Sheet bottom right end clamping means

Claims (14)

[Claims] 1. A rolled washed sheet is gripped and lifted by an up-down moving sheet intermediate portion clamping means, the lowermost end of the sheet is gripped by sheet lowermost clamping means, and the sheet is clamped by the sheet intermediate clamping means. After releasing the sheet, the sheet is guided and moved by the guide means and the sheet bottom clamp means, the sheet rear end is clamped by the sheet rear end clamp means, and the sheet bottom end clamp means and the sheet lower end clamp means are clamped by the sheet lower end clamp means. The lower left end of the sheet suspended by the sheet end clamp means is gripped, and the sheet lower left end clamp means is turned to unfold the sheet in a plane, and the sheet bottom end clamp means, the sheet rear end clamp means And movement and return of the sheet bottom left end clamping means. Automatic sheet feeding method in a washed sheet extender for automatically feeding the sheets into a washed sheet extender 2. A sheet overlap front / rear detecting means for detecting a front / rear overlap of a sheet lower right end and a sheet lower left end, and the sheet lower right end and the sheet lower left end are turned by the sheet lower left end clamping means by the sheet overlap front / back detecting means. 2. A method for automatically inserting sheets in a washed sheet extender according to claim 1, wherein when the sheets are overlapped and turned, the turning direction of the sheet lower left end clamping means is detected and the sheet lower left end clamping means is turned in the opposite direction. 3. A washed sheet which has been rolled up by an intermediate sheet clamping means which moves vertically, is lifted, the lowermost end of the sheet is grasped by sheet lowermost clamping means, and the sheet is clamped by the sheet intermediate clamping means. After releasing the sheet, the sheet is guided and moved by the guide means and the sheet bottom end clamp means, the sheet rear end is clamped by the sheet end clamp means, and the sheet bottom end clamp means and the sheet bottom right end clamp means are attached to the sheet. The lower right end of the sheet suspended by the sheet end clamp means is gripped, and the sheet lower right end clamp means is pivoted to unfold the sheet into a plane. The sheet bottom end clamp means, the sheet rear end clamp means And movement and return of the sheet bottom right end clamping means. Automatic sheet feeding method in a washed sheet extender for automatically feeding the sheets into a washed sheet extender 4. A sheet overlap front / rear detecting means for detecting before and after the overlap between the lower right end of the sheet and the lower left end of the sheet, and the lower right end of the sheet and the lower left end of the sheet are turned by the rotation means of the lower right end of the sheet. 4. A sheet automatic loading method in a washed sheet extender according to claim 3, wherein when the sheet is overlapped and turned, the turning direction of the sheet lower right end clamping means is detected and the sheet lower right end clamping means is turned in the opposite direction. 5. A washed sheet which has been rolled up by an intermediate sheet part clamping means which moves vertically, is lifted, the lowermost end of the sheet is grasped by sheet lowermost means clamping means, and the sheet is clamped by the sheet intermediate clamping means. After releasing the sheet, the sheet is guided and moved by the guide means and the sheet bottom clamp means, the sheet rear end is clamped by the sheet rear end clamp means, and the sheet bottom end clamp means and the sheet lower end clamp means are clamped by the sheet lower end clamp means. The lower left end of the sheet suspended by the sheet rear end clamp means is gripped, the lower right end of the sheet suspended by the sheet lower right end clamp means is gripped, the sheet lower left end clamp means and the sheet lower right clamp means. Are turned in opposite directions to each other to The sheets are automatically spread to a washed sheet extender by moving and returning the sheet bottom end clamping means, the sheet bottom end clamping means, the sheet bottom left end clamping means, and the sheet bottom right end clamping means. Automatic sheet feeding method for the loaded sheet expander 6. A sheet overlap front / rear detecting means for detecting a front / rear overlap between a sheet lower right end and a sheet lower left end, and the sheet lower right end and the sheet lower left end are turned by turning of the sheet lower left end clamping means by the sheet overlap front / rear detecting means. When overlapping and turning, the turning direction of the sheet lower left end clamping means is detected, the sheet lower left end clamping means is turned in the opposite direction, and the sheet lower right end clamping means grips the lower right end of the sheet and turns. Item 5. Automatic sheet feeding method in the washed sheet extender according to item 5 7. A sheet overlap front / rear detecting means for detecting the overlap before and after the lower right end of the sheet and the lower left end of the sheet, and the sheet lower right end and the lower left end of the sheet are turned by the sheet lower right end clamp means by the sheet overlap front / back detecting means. When overlapping and turning, the turning direction is detected, the sheet lower right end clamp means is turned in the opposite direction, and the sheet lower left end clamp means grasps the sheet lower left end,
6. A method for automatically feeding sheets in a washed sheet extender according to claim 5, wherein the sheet is turned. 8. A sheet intermediate clamping means for grasping, lifting and releasing a rolled washed sheet, a sheet bottom clamping means for grasping the lowermost end of the sheet, and a movement by movement of the sheet bottom clamping means. Guide means for guiding the sheet, sheet rear end clamp means for grasping the rear end of the sheet, sheet lower left end for grasping the lower left end of the sheet suspended by the sheet lower end clamp means and the sheet rear end clamp means The sheet comprises a clamp means, and a control means for controlling each of the means. The sheet is developed in a plane by turning the sheet lower left end clamp means, and the sheet lowermost clamp means, the sheet rearmost clamp means, and the sheet lower part. The sheet is automatically transferred to the washed sheet extender by moving and returning the left end clamping means. Automatic sheet feeding device in a pre-washed sheet extender 9. A sheet overlap front / rear detecting means for detecting the front / rear overlap of the lower right end of the sheet and the lower left end of the sheet, and the lower right end of the sheet and the lower left end of the sheet are rotated by the lower left end clamping means. 9. The sheet automatic loading device in a washed sheet extender according to claim 8, wherein, when the sheet is overlapped and turned, the turning direction of the sheet lower left end clamping means is detected and the sheet lower left end clamping means is turned in the opposite direction. 10. Grasping the rolled washed sheets,
Lifting and releasing the sheet middle clamping means, sheet lowermost clamping means for grasping the lowermost end of the sheet, guide means for guiding the moving sheet by movement of the sheet lowermost clamping means, and a rear end of the sheet. The sheet bottom end clamping means for grasping, the sheet bottom right end clamping means for grasping the lower right end of the sheet suspended by the sheet bottom end clamping means and the sheet rear end clamping means, and control means for controlling each of the means. The sheets are developed in a plane by turning the sheet lower right end clamping means, and the sheets are washed by moving and returning the sheet bottom end clamping means, the sheet rear end clamping means and the sheet lower right clamping means. Washed sheets automatically loaded into the expander Sheets in the expander Dynamic insertion device 11. A sheet overlap front / rear detecting means for detecting a front / rear overlap between a lower right end of the sheet and a lower left end of the sheet,
When the sheet lower right end and the sheet lower left end overlap and turn by the sheet lowering right and left clamp means, the sheet overlap detecting means detects the turning direction of the sheet lower right end clamp means and reverses the sheet lower right end clamp means. 11. The automatic sheet filling device in the washed sheet extender according to claim 10, which is turned in a direction. 12. Grabbing the rolled washed sheets,
Lifting and releasing the sheet middle clamping means, sheet lowermost clamping means for grasping the lowermost end of the sheet, guide means for guiding the moving sheet by movement of the sheet lowermost clamping means, and a rear end of the sheet. A sheet lower end clamp means for gripping the sheet, a sheet lower left end clamp means for gripping a lower left end of the sheet suspended by the sheet lowermost clamp means and the sheet rear end clamp means, and a lower right end of the suspended sheet. The sheet lower right end clamp means to be gripped and control means for controlling the respective means, and the sheet lowers the sheet lower left end clamp means and the sheet lower right end clamp means to expand the sheet into a plane, and the sheet lowermost end clamp means The sheet end clamp means, the sheet lower left end clamp Moving stage and the sheets lower right end clamping means, sheets automatic insertion device in laundry pre sheets expander that automatically put the sheets in the washing already Sheets expander by the return 13. A sheet overlap front / rear detecting means for detecting a front / rear overlap between a lower right end of the sheet and a lower left end of the sheet,
When the sheet lower right end and the sheet lower left end overlap and turn by the sheet lowering left and right clamp means, the sheet overlap detecting unit detects the turning direction of the sheet lower left end clamp means and reverses the sheet lower left end clamp means. 13. The automatic sheet feeding device in the washed sheet extender according to claim 12, wherein the sheet lower right end clamping means grips the lower right end of the sheet and turns the sheet while turning the sheet. 14. A sheet overlap front / rear detecting means for detecting a front / rear overlap between a lower right end of the sheet and a lower left end of the sheet,
When the sheet lower right end clamp and the sheet lower right end clamp turn, and the sheet lower right end and the sheet lower left end overlap and turn by the sheet overlap front / rear detecting means, the turning direction of the sheet lower right end clamp is detected and the sheet lower right end clamp is turned in the reverse direction. 13. The automatic sheet feeding device for a washed sheet extender according to claim 12, wherein the sheet lower left end clamping means grips the lower left end of the sheet and turns.