JPH054704A - Selective indication device for part-storing box in part-shelf - Google Patents

Abstract

PURPOSE:To offer a selective indication device for parts-storing box by which the work for shifting the storing position of a parts-storing box stored in a storing room of a parts-shelf can be carried out simply and with good workability and by which no error is made in parts-installation. CONSTITUTION:In order to ease the parts-assembling work to a partially fabricated item, the system by this invention is provided with a host computer 13, a controlling means 15, and an infrared transmitter 16 in addition to infrared receives 20, 20', 20'' and indication lamps 21, 21', 21'' which are installed in parts-storing boxes 18, 18', 18'' accommodated in a storing room of a parts-shelf 2, respectively. The infrared rays transmitted from the transmitter is received by the receiver. Owing to the receiver, only the indication lamp of a parts- storing box, which contains the parts designated to be installed on the partially fabricated item being carried by a belt conveyor 1, is turned on, so that only the parts in the parts-storing box indicated by the indication lamp are used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for selectively displaying, by turning on an indicator lamp, a component storage box accommodated in a component shelf using infrared rays.

[0002]

2. Description of the Related Art For example, in a factory for assembling electric products, while a semi-finished product is being conveyed by a belt conveyor, an operator turns on an indicator lamp from a large number of parts storage boxes accommodated in a parts shelf installed beside the belt conveyor. It is performed to take out and assemble the parts in an arbitrary selected and selected parts storage box. This is shown in FIG. 4, and 1 is a belt conveyor that conveys semi-finished products in the direction of the arrow, and a parts shelf 2 is installed beside the conveyor. Parts shelf 2 is belt conveyor 1
It is a box type with an open side, and is a box (accommodation chamber) formed in multiple rows in multiple rows vertically and horizontally.
5, 3 ', 3' ... accommodates component storage boxes 4, 4 ', 4 "... As shown in FIG. 5 ', 5 "
... is stored. Indicator lamps 6, 6 ', 6 "... Through a bracket fixed to the component shelf 2 above the storage chambers 3, 3', 3" ... In which the component storage boxes 4, 4 ', 4 "...
Is provided, and the indicator light is connected to the wiring 7, as shown in FIG.
7 ', 7 "... and 8, 8', 8" ... are connected to the external power source 10 via the external selection conditions 9, 9 ', 9 "... And the external selection conditions 9, 9'. , 9 ″ ... any one of
When one is selected by the control of a control means such as a computer, only the indicator light of the component storage box of the selected external selection condition is lit and displayed, and the component in the component storage box of the lit indicator light is used. It is convenient for assembling parts to semi-finished products. The control means selects the necessary parts for each type of semi-finished product and turns on the indicator lamp according to the conditions.

[0003]

By the way, in the above-mentioned device, the accommodating chambers 3, 3 ', 3 "of the component shelf 2 are ...
When the component storage boxes 4, 4 ', 4 "... Are to be accommodated, the frequently used components 5, 5', 5" ... However, since the frequently used parts 5, 5 ', 5 ", ... differ depending on the type of the semi-finished product, the accommodating positions of the parts storage boxes 4, 4', 4", ... In addition to this movement, the indicator lights 6, which are installed at the top of the containment chamber,
6 ′, 6 ″ ... and wirings 7, 7 ′, 7 ″ ... and 8, 8 ′,
8 ″ ... also had to be moved at the same time, and the work of moving was difficult, and the workability was extremely poor. Moreover, if the wiring was changed incorrectly during the movement, wrong parts would be attached to the semi-finished product, resulting in a defective product. There was a problem that was completed.

In view of the above, the present invention solves the above-mentioned problems of the prior art, makes it easy to move the storage position of the component storage box, has good workability, and has no error in component mounting. The purpose is to provide.

[0005]

In order to achieve the above object, the present invention provides an indicator lamp on the front surface of each component storage box in the component storage box selection display device of the component shelf as described above. A control means is provided for selecting the component storage box in which the component is stored from the designated components and for encoding and outputting the selection information for turning on the indicator light of the selected component storage box. An infrared transmitter is provided which converts the selection information output from the control means into an optical signal and projects it on the entire front surface of the component shelf. The light signal emitted from the transmitter is received, the received light signal is converted into selection information and decoded, and it is determined from the decoded selection information whether or not it is the component storage box selected. Each component storage box is provided with an infrared receiver that turns on the indicator light of the selected component storage box and does not turn on the indicator light of the box when the component storage box is not selected. In the above, the host computer is designed to specify the parts. In addition, a conveyor is provided on the front side of the component shelf to transport the semi-finished products to which the components in the selected component storage box are attached.

[0006]

The control means selects a component storage box in which the component is stored from the designated components, creates a code for turning on the indicator light of the component storage box, and outputs this as selection information to the infrared transmitter. . The infrared transmitter converts this selection information into an optical signal and projects it on the entire front surface of the component shelf. An infrared receiver provided on the front surface of each component storage box receives an optical signal emitted from a transmitter, converts the received optical signal into selection information, decodes it, and selects from this decoded selection information. It is determined whether it is a component storage box. When the infrared receiver is the component storage box selected based on this determination, it turns on the indicator light of the box.

[0007]

1 is a perspective view showing an embodiment of the present invention. In FIG. 1, the same parts as those in FIG. 4 showing the conventional example are denoted by the same reference numerals and the description thereof will be omitted. In the following, a new part will be mainly described.

Reference numeral 13 denotes a host computer, which automatically designates necessary parts to the control means 15 according to the type of semi-finished product conveyed by the belt conveyor 1. The control means 15 selects the component storage box in which the component is stored from the components designated by the host computer 13, and encodes the selection information for turning on the indicator light of the selected component storage box, and the infrared transmitter 16 It is designed to output to. The infrared transmitter 16 is installed at a position facing the parts shelf 2 across the belt conveyor 1 as shown in the figure. The infrared transmitter 16 converts the selection information output from the control means 15 into an optical signal, as shown by the dotted line in FIG. In addition, the light is projected onto the entire front surface of the parts shelf 2. Storage room 3, 3 ', 3 "of parts shelf 2 ...
In the lower part of each of the component storage boxes 18, 18 ', 18 ", which are housed in, the infrared receiver 20, which receives the optical signal emitted from the infrared transmitter 16 as shown in FIG. 20 ', 2
0 ″ ... is provided. Reference numerals 21, 21 ′, 21 ″ ... are indicator lights provided on the lower front surfaces of the component storage boxes 18, 18 ′, 18 ″.

FIG. 3 shows the transmitter 16 and the receivers 20, 20 ',
As shown in the block diagram, such as 20 ″ ...
Is composed of a photocoupler 23, an FSK modulator 24, an amplifier 25, a light emitting diode (LED) 26, and a wide-angle lens 27,
The receiver 20 (20 ', 20 "... is the same) is the interference filter 31,
It comprises a photodiode 32, an amplifier 33, an FSK detector 34, a decoder 35, a judging device 36, and a display LED 37. L
The ED 26 emits infrared rays having a wavelength of 870 nm, for example. The interference filter 31 passes only infrared light having a wavelength of 870 nm and removes other light.

Next, the operation of this embodiment will be described. When the semi-finished product conveyed by the belt conveyor 1 is determined, the host computer 13 automatically designates the parts required for this semi-finished product to the control means 15. The control means 15 selects a component storage box in which the component is stored from the designated components, creates a code for turning on the indicator light of the component storage box, and outputs this to the infrared transmitter 16 as selection information. The infrared transmitter 16 insulates the selection information from the control means 15 from the outside by the photo coupler 23, modulates it into an optical signal by the FSK modulator 24, amplifies it by the amplifier 25, and projects it as infrared light from the LED 26 through the wide-angle lens 27. The surface is widened and the whole front surface of the parts shelf 2 is projected.

On the other hand, the infrared receivers 20, 20 ', 20 "... Provided in the component storage boxes 18, 18', 18" ... Light is received by passing only the corresponding infrared ray, the received light signal is converted into photoelectric information by the photodiode 32 (photoelectric conversion), amplified by the amplifier 33, and detected by the FSK detector 34. Then, the decoder 35 decodes it, and the judging device 36 judges whether or not it is the component storage box selected from the decoded selection information. Then, when the component storage box selected based on the determination of this determination device is, for example, the component storage box 18, the indicator light 21 of the box is turned on, and the indicator lights of the component storage boxes 18 ', 18 ", ... Which have not been selected. Do not turn on 21 ', 21 "...
In this example, since the interference filter 31 is used and the light modulation method is adopted, it is hardly affected by other light such as fluorescent light, mercury light, and sodium light.

Therefore, the assembly worker is
The parts 5, 5 ', 5 "in the lit parts storage boxes 18, 18', 18" of 21 ', 21 "... are judged to be necessary parts, and the parts in the boxes are taken out and placed on the belt conveyor 1. Can be attached to the semi-finished product that is being transported, and can be attached without error.
Also, when the type of semi-finished product changes and the parts to be attached to it also change, the parts storage box 1
It is necessary to move the 8, 18 ', 18 "... to the storage chambers 3, 3', 3" ... of the parts shelves 2 at the positions most easily taken out, but in this case, move only the necessary parts storage boxes. Well, there is no need to move together with the indicator lights and wiring as in the past.

In the above embodiment, the component storage boxes 18, 18 ', 18 "... Stored in the storage chambers 3, 3', 3" of the component shelf 2 provided beside the belt conveyor 1 are indicated by the indicator lights 21, 21 '. , 21 ″ ... are lit up for selective display, but the present invention is not limited to such an example. In addition to this, for example, a parts storage box in which necessary parts are stored for taking out necessary parts in a warehouse. Which can also be applied to those which selectively display, or selectively display a parts storage box containing the parts so that a plurality of parts can be installed without error in a plurality of workstations for assembling semi-finished products, etc. Is.
Further, the configurations of the transmitter and the receiver shown in the above embodiments are examples of preferable designs, and other designs may be adopted within a range not changing the gist at the time of implementation.

[0014]

According to the first aspect of the present invention, since the wiring for connecting the indicator lamp and the external power source is not required unlike the prior art, the housing position of the parts storage box in the storage room of the parts shelf is eliminated. Can be easily moved, and workability is improved. Moreover, since the movement can be performed without any mistake, no mistake will be made in component mounting. Also, since infrared rays are used for transmission and reception, it is not affected by electrical noise and radio waves in the factory. According to the second aspect of the invention, the parts can be designated automatically by the host computer, and the apparatus can be more completely automated. According to the third aspect of the present invention, it is possible to correctly take out a component to be attached to a semi-finished product conveyed by a conveyor and attach it to the semi-finished product.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view of the above.

FIG. 3 is a block diagram of the above.

FIG. 4 is a perspective view corresponding to FIG. 1 of a conventional example.

FIG. 5 is a partially enlarged sectional view of a conventional example.

FIG. 6 is a circuit diagram showing a control system of a conventional example.

[Explanation of symbols]

1 belt conveyor 2 parts shelf 3,3 ', 3 "storage room 5,5 ', 5 "parts 13 Host computer 15 Control means 16 infrared transmitter 18, 18 ', 18 ″ parts storage box 20, 20 ', 20 ″ infrared receiver 21,21 ', 21 ″ indicator light

Claims (3)

[Claims] 1. A component shelf provided with a large number of storage chambers whose front faces are opened, and a component storage box which stores components in the storage chambers of the component shelves from the front opening side. In the component storage box selection display device of a component shelf for selectively displaying the component storage box in which the components to be used are stored by lighting an indicator light provided in the storage chamber area on the front side of the storage box, An indicator light is provided on the front of each component storage box, and the component storage box in which the component is stored is selected from the specified components, and the selection information for turning on the indicator light of this selected component storage box is coded. An infrared transmitter is provided that outputs the control information, converts the selection information output from the control device into an optical signal, and projects the optical signal on the entire front surface of the parts shelf, and receives the optical signal projected from the transmitter. As well as The radiated optical signal is converted into selection information and decoded, and it is judged from the decoded selection information whether or not it is the selected component storage box, and when it is the selected component storage box, the indicator light of the box. And a component storage box selection display device for a component shelf, wherein each component storage box is provided with an infrared receiver that does not turn on the indicator light of the component storage box that is not selected. 2. A component storage box selection display device for a component shelf according to claim 1, wherein the host computer is designed to designate a component. 3. A component storage box selection display device for a component shelf according to claim 1 or 2, wherein a conveyor for transporting a semi-finished product to which the component in the selected component storage box is attached is provided on the front side of the component shelf. .