JPH0725412B2 - Laundry counter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention enables automatic counting of the number of laundry items for linen supplies (sheets, wrapping cloth, yukata, pillowcases, towels, towels, uniforms, mats, etc.). The present invention relates to a laundry counting device.

(Prior art) The linen supply business owns linen in-house, delivers the required amount every day at the request of customers (hotels, hospitals, etc.), takes used dirty laundry home, and launders it at the factory. It is a business that receives rental fees from customers based on the cost of laundry and laundry. Therefore, for a linen supplier, the number of dirty linens that customers bring home every day is
This is an important point in terms of cost. However, since the number of linens we handle daily is large, it is almost impossible to count them manually, so in the past it was not possible to offer to the customer even if the number of items received at the factory was less than the delivery amount. In addition, since it was not possible to grasp the number of incoming linen, it was difficult to accurately control production, which was a cause of pressure on profits in the linen supply industry.

(Problems to be Solved by the Invention) The present invention intends to solve the above-mentioned problem of inability to count laundry for linen supplies and to provide a counting device capable of counting easily.

(Means for Solving the Problems) Therefore, the present invention is a soft object in a device for detecting a metal recognition piece attached to a laundry passing on a passage by a detection head provided in the passage. In the overlapping portion of the laundry, a piece of metal, metal fiber or metal-mixed fiber, which has a different size for each type of laundry or is sewn on and attached with a recognition piece made of different material for each type, is attached. By changing the magnitude of the induced current flowing in the same recognition piece,
The number of sheets of each type of laundry is automatically counted, and this is used as a means for solving the problem.

(Function) A metal recognition piece made of metal pieces, metal fibers or metal-mixed fibers is sewn on and attached to the overlapping portion of the laundry, and the collected dirty laundry passes through the passage having the detection head. By doing so, it is possible to detect the number of sheets by discriminating the number of sheets, type, etc. according to the magnitude of the induced current flowing through the recognition piece. In addition, by attaching the recognition piece to the overlapping part of the laundry by attaching it, the metal piece does not directly touch the sensitive bare skin, so there is no risk of feeling foreign matter or scratching the skin. It is possible to prevent allergies from occurring even for people with metal allergies.

That is, the size of the recognition piece is different for each kind of laundry or the material is changed for each kind of laundry. When the size of the recognition piece is changed in this way, the magnitude of the induced current generated is different. In addition, the magnitude of the induced current varies depending on the difference in metal material. Therefore, according to the present invention,
The number of sheets can be counted for each type of laundry, and unmanned sorting for each type of laundry is possible, resulting in various advantages in factory operation.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. The drawing shows an embodiment of the present invention, FIG. 1 (a) shows a case where the linen 1 is a towel, and FIG. 1 (b) is a yukata. Shows the case. 2 is a detailed view of part A of FIG. 1, FIG. 3 is a perspective view of the linen number counting device, and FIG. 4 is a perspective view of the same counting device different from FIG. Linen 1 includes sheets, wrapping, pillowcases,
It is a general term for laundry such as towels, hand towels, mats or yukatas, and uniforms. Reference numeral 2 denotes a metal recognition piece, which is sewn into each linen 1 and is made to have a different size for each type of linen 1 or a different material for each type.

Reference numeral 4 denotes a detection head, which is a metal detection sensor based on the principle of a proximity switch, which constitutes a part of a high frequency transmission circuit and generates a magnetic field. When the metal recognition piece 2 passes through the detection head 4, an induction current flows in the metal piece due to the electromagnetic induction effect. The magnitude of the induced current generated varies depending on the size of the metal piece. Also, the magnitude of the induced current generated varies depending on the difference in metal material. Reference numeral 5 is a conveyor for carrying the linen 1, and the detection head 4 is installed with the conveyor 5 sandwiched therebetween. Reference numeral 6 is a belt that constitutes the conveyor 5, and is made of an insulating material such as rubber or resin so as not to adversely affect the detection head 4. Reference numeral 7 is an air shooter in the embodiment of FIG. 4, which is a device for conveying the linen 1 by suction air. Reference numeral 10 denotes a controller, which detects that when the metal object passes through the detection head 4 part, the inductance and loss of the sensor change due to the electromagnetic induction action and the oscillation amplitude and the oscillation frequency change, and an output signal is generated.
Reference numeral 11 is an output monitor, which is an output monitor output from the controller 10. 12 is a counter, controller 10
Counts and displays the number of times the output signal level of exceeds the preset sensitivity setting value.

Next, the operation of the embodiment configured as described above will be described. First, the recognition piece 2 is attached to the linen 1. That is, when the linen 1 is sewn, metal pieces, metal fibers, or metal-mixed fibers are sewn on and attached to a portion of the linen 1 that is double or more, such as an ear portion or a collar portion. Further, when the size of the recognition piece 2 is changed for each type of the linen 1, the output signal at the time of detection changes, so that it is possible to automatically count the number of sheets and automatically journal the plural types of linen 1. By changing the material of the metal piece depending on the product type, it is possible to automatically sort a plurality of product types.

Next, the counting operation by the conveyer shown in FIG. 3 will be described. Dirty linen collected from hotels, hospitals, etc. is washed by a washing machine. On the way to the washing machine, the linen 1 is separated by combining a rotating basket, an air shooter, a conveyor, etc., which are not shown, and placed on the conveyor 5 to detect the head 4.
Pass through. When counting the number of linen 1 after washing, it may be folded and then placed on the conveyor 5.

The detection head 4 is a recognition piece 2 attached to the linen 1.
Detected, the signal is controller 10, output monitor 11
to go into. At this time, the number of output signals which is equal to or more than a preset signal value is sent to the counter 12, and the counter 12 outputs the number of linens 1 which have passed through the detection head 4.

Next, the counting operation by the conveyance by the air shooter of FIG. 4 will be explained. The linen 1 is conveyed by the air shooter 7, and the detection head 4 is installed outside the air shooter 7, and as in the case of FIG. Count linen.

(Effects of the Invention) As described in detail above, according to the present invention, metal recognition pieces made of metal pieces, metal fibers or metal-mixed fibers are sewn on and attached to overlapping portions of laundry, and these pieces are collected. By passing the dirty laundry through the passage having the detection head, it is possible to detect the number of sheets by discriminating the number, type, etc. according to the magnitude of the induced current flowing through the recognition piece. In addition, by attaching the recognition piece to the overlapping part of the laundry by attaching it, the metal piece does not directly touch the sensitive bare skin, so there is no risk of foreign matter feeling or scratching the skin. It is possible to prevent allergies from occurring even for people with metal allergies.

Further, the size of the recognition piece is different for each kind of laundry, or the material is changed for each kind of laundry. When the size of the recognition piece is changed in this way, the magnitude of the induced current generated is different. In addition, the magnitude of the induced current varies depending on the difference in metal material. Therefore, according to the present invention, it is possible to count the number of sheets for each type of laundry, and it is possible to perform unmanned sorting for each type of laundry, which brings about various advantages in factory operation.

[Brief description of drawings]

1 and 2 are perspective and front views of different types of laundry with recognition pieces attached, FIG. 2 is an enlarged side view of part A of FIG. 1, and FIGS. 3 and 4 are books, respectively. FIG. 6 is a perspective view of a laundry counting device showing a different embodiment of the invention. Description of main parts of the figure 1 …… Linen (laundry) 2 …… Identification piece 4 …… Detection head 5 …… Conveyor 7 …… Air shooter 10 …… Controller 11 …… Output monitor 12 …… Counter

Claims (1)

[Claims] 1. A device for detecting a metal recognition piece attached to a laundry passing on a passage by a detection head provided in the passage, wherein a metal piece is placed on an overlapping portion of the laundry, which is a soft object, The size of the induced current flowing in the recognition piece, which is made of metal fiber or metal-mixed fiber, and whose size is different for each type of laundry, or whose material is changed for each type A laundry counting device, which automatically counts the number of laundry items for each type of laundry by changing.