JP2018015201A - Cloth feeding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cloth feeding machine which can significantly reduce failure in gripping cloth such as a sheet.SOLUTION: A feeding machine for delivering cloth to a different apparatus after gripping and suspending the cloth includes a chuck 2 for gripping the end edge of the cloth. The chuck 2 has a lower projection piece 3b and an upper projection piece 3c formed on the lower face and the upper face of a recess for inserting the end edge of the cloth therein, and has a structure allowing a claw to be opened and closed in the recess. On the lower projection piece 3b, there is provided a guide piece which is wider than the lower projection piece 3b and extended ahead of the tip of the lower projection piece 3b. When an operator stands in front of the chuck 2 and looks down at it obliquely from above, the lower projection piece 3b is obstructed by the upper projection piece 3c and is not well visible. However, when there is the guide piece larger than the lower projection piece 3b, it is possible to estimate a place where the lower projection piece 3b is present by using the guide piece as a mark. As a result, since it is possible to easily and reliably perform operation for inserting the cloth in the chuck 2 to grip it, productivity is improved.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cloth feeder. More specifically, when washing and ironing cloths such as washed sheets and wrapping (bag-like items such as a two-cloth bedding cover), pillowcases, towels, tablecloths, clothing, etc. A cloth unfolding device is used to unfold the cloth into a quadrilateral and supply it to a next process apparatus such as a press or a folding machine. A cloth throwing machine is used to put the washed cloth into the cloth unfolding apparatus. The present invention relates to such a cloth feeder.

A large amount of sheets are used in hotels and hospitals, and the used sheets are generally washed and ironed in a laundry factory and used again in hotels and hospitals.
In a laundry factory, a work such as a sheet having a relatively large size such as a sheet is washed and then pressed by a pressing machine or folded by a folding machine. In order to supply cloths to these processing apparatuses, it is necessary to develop the cloths in a square shape in advance.
When a worker performs an operation of expanding a cloth into a quadrangle, since a great amount of time and labor are required for the operation, in recent years, the operation is performed by an expansion device that automatically performs the operation. In addition, the cloths that have already been washed must first be thrown into the unfolding apparatus, but the throwing-in is mechanized and the throwing machine is used.

The basic configuration of the conventional deployment device and input machine described in Patent Document 1 is roughly configured as follows.
In FIG. 5, reference numeral 80 denotes a cloth feeding machine such as a sheet, which is provided at both left and right ends of the developing device. When the worker holds the sheet Y on the hanger 81 in the cloth feeding machine 80, the hanger 81 once moves up to the uppermost end and moves slightly to the back side. Deliver sheet Y to 20L. Next, one side of the cloth is grabbed by the transverse chuck 20R or 20L and pulled onto the belt conveyor 10, and the belt conveyor 10 is driven forward to cause the cloth to hang down to the front of the apparatus. Grasp both ends in the width direction of the cloth with 40L and hang it by pulling. The cloth is drawn into and discharged from the apparatus in a state of being expanded into a quadrangle as described above, and sent to a press machine or the like.

The hanger 81 has chucks 82 attached to both ends thereof. The conventional chuck 82 will be described with reference to FIGS.
The chuck 82 includes a chuck body 83 and a claw piece 84. The chuck body 83 includes a lower protruding piece 85 and an upper protruding piece 86 so as to form a recess recessed in the lateral direction. A claw piece 84 is rotatably supported by a pin 87 on the upper projecting piece 86, and a spring 88 is stretched between the upper portion of the claw piece 84 and the chuck body 83.

  The lower protruding piece 85 and the upper protruding piece 86 have the same width and the same length. As shown in FIG. 6, when the nail piece 84 is pulled up by the spring 88, the lower end portion of the nail piece 84 comes into contact with the surface of the lower projecting piece 85, so that a sheet or the like can be sandwiched therebetween.

However, the conventional example has the following problems.
As shown in FIG. 7, when an operator hooks a sheet on the chuck 82, the chuck 82 is looked down obliquely from above (about 45 °). Since the interval w between the leading ends of 85 is narrow, the lower projecting piece 85 as a member for supporting the sheet from below is operated without being clearly seen by the upper projecting piece 86. In this case, an operation error that the sheet cannot be properly inserted into the upper surface of the lower protruding piece 85 is likely to occur. This problem is easy to avoid if it is skilled, but it is still not perfect and has been a hindrance to improving work efficiency.

JP, 2006-106893, A

  In view of the above circumstances, an object of the present invention is to provide a cloth throwing machine that can greatly reduce mistakes in gripping cloth such as sheets. Another object of the present invention is to provide a cloth throwing machine capable of improving the efficiency of the gripping operation.

A cloth throwing machine according to a first aspect of the present invention is a throwing machine for gripping and hanging a cloth and then delivering it to another apparatus, and includes a chuck for gripping an edge of the cloth. A lower projecting piece and an upper projecting piece are formed on a lower surface and an upper surface of a recess for inserting an edge of cloth, and a claw is opened and closed in the recess, and the lower projecting piece includes the lower projecting piece. And a guide piece that is wider than the front end of the lower protrusion and extends forward.
According to a second aspect of the present invention, there is provided the cloth feeding machine according to the first aspect, wherein the chuck includes a spring that normally urges the claw in the closing direction, and a claw opening / closing cylinder that moves the claw in the opening direction. To do.
According to a third aspect of the present invention, there is provided a cloth throwing machine according to the second aspect, wherein the claw opening / closing cylinder is contracted based on a sensor that detects that a cloth piece has been inserted into the recess of the chuck and a detection signal from the sensor. And a control circuit incorporating a sensor to be operated.

According to the first invention, when the worker stands in front of the chuck and looks down from above, the lower projecting piece is obstructed by the upper projecting piece and cannot be seen well, but if there is a guide piece larger than the lower projecting piece, , Using it as a landmark, you can register where the lower protrusion is. For this reason, since the operation of inserting the cloth into the chuck can be easily and reliably performed, the productivity is improved.
According to the second aspect of the invention, the claw closing operation in the catch is performed by the spring, and the opening operation is performed by the claw opening / closing cylinder, so that the manual operation for the opening operation is not required, so that the work efficiency is improved. To do.
According to the third invention, when the operator inserts into the recess of the catch, the claw opening / closing cylinder is operated by the drive signal from the sensor that detects the insertion to close the claw. Since the nail closing operation is automatically performed as described above, the work of gripping the cloth piece is efficiently performed.

It is drawing of the chuck | zipper A in the cloth injection | throwing-in apparatus which concerns on this invention, Comprising: (A) is a side view, (B) is a top view, (C) is a front view. It is action | operation explanatory drawing of the chuck | zipper A shown in FIG. It is explanatory drawing of the holding mechanism of the chuck | zipper A. FIG. FIG. 10 is an explanatory diagram of the gripping operation of the chuck A. It is a front view of the cloth deployment apparatus and cloth carrying-in machine which concern on a prior art example and this invention. It is structure explanatory drawing of the conventional catch. It is explanatory drawing of the problem of a prior art.

Next, an embodiment of the present invention will be described with reference to the drawings.
The cloth unfolding device to which the charging machine of the present invention is applied is a device for unfolding various shapes and forms of cloth Y and supplying them to another apparatus such as an ironer in the next process. A thrower is used to put freshly washed cloths into the developing device. The “separate apparatus” in the claims corresponds to a next process apparatus such as an ironer.
In this specification, the front / rear, left / right and up / down directions of the cloth unfolding apparatus A are defined as shown in FIGS.

  Since the basic configuration of the cloth deployment device shown in FIG. 5 is inherited in the present invention, the basic configuration will be described again with reference to FIG. The cloth unfolding apparatus shown in the figure accepts cloth Y such as a sheet fed from a cloth throwing machine, unfolds the entire cloth Y into a square shape, and removes the unfolded cloth Y. It is a device that performs a discharging operation for performing and delivering the fabric Y after staking to a next process device.

Among the basic configurations of the cloth deployment device A in the present embodiment, the same components as those in the prior art are given the same reference numerals, and the reference symbols are listed below.
10: Loading platform 11: Loading conveyor
20L, 20R: Traverse chuck

  As shown in FIG. 5, the loading table 10 is a table for transferring the fabric Y forward after the fabric Y is taken in from the loading machine, and is composed of a loading conveyor 11. The stacking conveyor 11 includes a plurality of belts, and the cloth Y can be fed forward by these belts. The loading table 10 is longer than the long side of the cloth Y to be processed.

  In the developing device A of the present embodiment, the fabric Y is supplied from the side shown in FIG. The supply of the fabric Y may be from both the left and right sides, or one of the left and right sides. The present invention is characterized by a cloth feeding machine attached to the developing device.

Next, the characteristic part of the cloth feeding machine will be described with reference to FIGS. 1 to 2, and the characteristic part is in the chuck 2 attached to the hanger 81.
The chuck 2 includes a chuck body 3 and a claw piece 4. The chuck body 3 is a U-shaped block body having a recess 3h that is recessed from the front to the back, and includes a base 3a, a lower protrusion 3b, and an upper protrusion 3c. A pin 7 is passed through the tip of the upper protruding piece 3c, and a substantially intermediate portion of the claw piece 4 is rotatably supported by the pin. A spring 8 is stretched between the upper portion of the claw piece 4 and the chuck body 3.

  As shown in FIG. 2, when the nail piece 4 is pulled up by the spring 8, the lower end of the nail piece 4 contacts the surface of the lower protrusion piece 5, and therefore a cloth Y such as a sheet is sandwiched between them. Can do.

  A guide piece 9 is attached to the lower surface of the lower protrusion piece 3b. The shape of the guide piece 9 is arbitrary, but in the illustrated embodiment, the guide piece 9 has a U-shaped cross section with standing walls rising on both sides, and the both standing walls are attached with the lower protrusion 3b interposed therebetween. Further, the attachment to the chuck body 3 including the lower protruding piece 3b of the guide piece 9 is arbitrary, and means such as screwing or adhesion can be employed without any particular limitation.

The guide piece 9 is wider than the lower protruding piece 3b and has a longer length than the lower protruding piece 3b and protrudes forward.
For example, the total width is about 20 to 40 mm, which is about 2 to 10 mm wider than the lower protrusion 3 b. Moreover, it protrudes about 2-40 mm from the front-end | tip of the lower protrusion piece 3b ahead.

  The height of the upper surface of the distal end portion of the guide piece 9 is slightly higher than the height of the lower protruding piece 3b, for example, about 1 mm. If a step is provided in this way, when the cloth Y such as a sheet is inserted, it can be sensed that the cloth such as the sheet can be inserted into the back with a sense of hand.

  As described above, when the guide piece 9 is large, when the worker stands in front of the chuck 2 and looks down from the oblique upper side, the distance between the tip of the upper protrusion piece 3a and the tip of the guide piece 9 That is, since the opening W of the recess 3h widens, the location of the lower protrusion 3b can be easily recognized. For this reason, the work for holding the sheet on the chuck 2 can be easily performed without fail, and the work efficiency is increased.

  The chuck 2 shown in FIG. 1 is configured to grasp the cloth Y or the like by the elastic force of the spring 8. The nail piece 4 is normally pulled by a spring 8; however, when the cloth Y is pushed in by hand, the nail piece 4 is pushed and moved, and the cloth Y enters the depth of the recess 3h. The cloth Y can be sandwiched between the bottom end of the base plate and the lower projecting piece 3b.

Next, an automatic opening / closing mechanism for automatically opening / closing the claw piece 4 in the chuck 2 will be described.
As shown in FIG. 3, a claw opening / closing cylinder 5 is attached to the chuck 2. The claw opening / closing cylinder is formed of an air cylinder, and includes a cylinder body 51, a piston rod 52, and a pressing metal 53. The pressing metal 53 is attached to the tip of the piston rod 52 via a bolt, and the position of the tip of the pressing metal 53 can be adjusted to be long or short. For this reason, the opening amount of the claw 4 can also be adjusted.

The expansion / contraction operation of the claw opening / closing cylinder 5 is automated by using a sensor.
For example, if the nail opening / closing cylinder 5 is contracted when the non-contact sensor (photoelectric sensor or the like) detects that the cloth Y such as a sheet is inserted into the recess 13h of the chuck 2, the chuck 2 of the cloth Y The nail | claw 4 can be closed interlocking with insertion in the. The opening of the claw may be configured such that the claw opening / closing cylinder 5 is extended by detecting, with a limit switch, that the chuck 2 has come to a position for delivering the cloth Y to the next process mechanism.

  The automatic control as described above can be performed by using a control circuit that drives a solenoid of a directional control valve incorporated in the air circuit of the claw opening / closing cylinder 5 by inputting a sensor signal.

  The chuck 2 can be swung in the front-rear direction (left-right direction in the drawing) about the support shaft 61 by a rotating cylinder 6 formed of an air cylinder. This is to make it easier to insert the fabric Y with the opening side of the chuck 2 facing the operator, or to make the fabric Y easier to pass back to the next process mechanism.

  FIG. 4A shows a state in which the chuck 2 is open and the cloth Y is to be inserted. The operator holds the cloth Y in his / her hand and inserts the edge of the cloth Y toward the openings (recesses 3 h) of the pair of left and right chucks 2. At this time, if the guide piece 9 is large, the location of the lower protrusion piece 3b can be easily recognized even when the operator's line of sight is looked down obliquely from above.

  FIG. 4B shows a state where the chuck 2 is closed. The closing operation of the chuck 2 is as described above. When the sensor detects that the fabric Y has been inserted into the recess 13h of the chuck 2, the claw opening / closing cylinder 5 contracts and interlocks with the insertion of the fabric Y into the chuck 2. Then, the nail 4 can be closed. For this reason, since the opening operation | movement of the nail | claw in a catch is performed by a nail | claw opening-and-closing cylinder, work efficiency improves because the manual operation for an opening operation becomes unnecessary.

Although the said embodiment demonstrated what was applied to the cloth expansion | deployment apparatus for square-shaped cloth, the cloth throwing-in machine of this invention is not restricted to this, For non-square clothes (yukata, sick clothes, etc.) It can also be applied to a charging device.
Further, even in the cloth unfolding apparatus, the present invention can be applied not only to the unfolding apparatus shown in FIG. 5 but also to a loading machine for the unfolding apparatus having a different configuration. Furthermore, the basic configuration of the feeder itself is not limited to that shown in the drawing, and the present invention can be applied if a chuck is used.

DESCRIPTION OF SYMBOLS 1 Hanger 2 Chuck 3 Chuck main body 3a Base 3b Lower protrusion 3c Upper protrusion 4 Claw piece 5 Claw opening / closing cylinder 8 Spring

Claims (3)

A dosing machine for holding and hanging the cloth and then delivering it to another device,
It has a chuck to grip the edge of the fabric,
The chuck has a structure in which a lower projecting piece and an upper projecting piece are formed on a lower surface and an upper surface of a recess into which an edge of cloth is inserted, and a claw is opened and closed in the recess,
The cloth projecting machine, wherein the lower projecting piece has a guide piece that is wider than the lower projecting piece and extends forward from the tip of the lower projecting piece. The chuck is
A spring for normally urging the claw in the closing direction;
The cloth feeding machine according to claim 1, further comprising a claw opening / closing cylinder that moves the claw in an opening direction. A sensor for detecting that a piece of cloth has been inserted into the recess of the chuck, and a control circuit incorporating a sensor for contracting the claw opening / closing cylinder based on a detection signal from the sensor. The cloth throwing machine according to claim 2, characterized in that:

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