JPS6173007A - Detecting device for style of packing - Google Patents

Abstract

PURPOSE:To detect whether a body to be conveyed is in a style of packing of less than prescribed size or not by detecting two conveyance-directional surfaces and height-drectional projection of the conveyed body. CONSTITUTION:A photoelectric detection part is composed of right and left posts 4, photoelectric switches 8 fitted thereto, and a projection detection part which inputs output states of the photoelectric switches 8 and detect the conveyance-directional projection of a package. Two photoelectric detection parts are provided in the conveyance direction to check whether there is the projection in the conveyance direction. Further, a bracket 5, roller 6, wire rope 7, and limit switch 9 fitted to the post 4 of one photoelectric detection part constitute a wire type detection part. The wire rope 7 is drawn in three right, left, and height directions and the projections of surfaces in the three directions is detected. Consequently, whether a style of packing is within the prescribed size or not is detected automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a package shape detection device that detects the package shape of a conveyed object conveyed by a conveyor, a truck, or the like.

[-Background of the invention]

Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 55-35708, phototubes are placed on both sides above the conveyed object, and the operation signal of the phototube is used to detect the collapse of the load (the shape of the load). There are known devices that detect abnormalities (abnormalities).

However, this device can detect abnormalities in the appearance of the load only in the left-right direction of the load (direction perpendicular to the transport direction), and cannot detect abnormalities in the transport direction of the load or abnormalities in the height direction of the load. When the conveyed item is multiple items loaded on a pallet, it is difficult to perfect the appearance of the items when placing the items on the pallet. This will significantly reduce efficiency. However, being transported in poor condition is
This is undesirable as it may cause the problem of the load falling during transportation or being unable to store it properly when stored on the warehouse shelf. When storing it, it must be within the specified dimensions so that it does not interfere with rack columns, etc., and packaging that exceeds these dimensions must be judged as abnormal. Considering this, the conventional apparatus described above is insufficient, and it is required to check the condition of the transported object in the transport direction, left-right direction, and vertical direction as well.

[Purpose of the invention]

An object of the present invention is to provide a package shape detection device that detects whether the package shape is within specified dimensions.

[Summary of the invention]

The present invention includes two sets of photoelectric detectors installed in the conveyance direction to detect protrusions on two sides in the conveyance direction of the conveyed object, and two sets of photoelectric detection units provided on two sides in the direction perpendicular to the conveyance direction of the conveyed object. The present invention is characterized in that it is provided with a linear detection section that detects a protrusion and a protrusion in the height direction, and detects an abnormality in the packaging condition of the conveyed object using the operation signals of each detection section.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail using FIGS. 1 and 2. FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a diagram showing the principle of detecting the protrusion of a conveyed object in the conveyance direction.

In Figures 1 and 2, l is a chain conveyor;
2 is a roller conveyor that can be moved up and down, and 3 is a chain conveyor. Objects (not shown in FIG. 1) are conveyed to their destinations by these conveyors. 4 is a post for mounting a photoelectric switch. 5 is a bracket attached to the upper part of one of the posts 4, 6 is a roller, and 7 is a linear body, in which a wire rope is used. 8 is a photoelectric switch attached to the post 4 in the height direction.

9 is a limit switch, which operates when some tension is applied to the wire rope 7. In addition, 10 is a rotating light, 11 is a display box, 1 is a display light, 13 is a cover, 14 is an operation box, 16 is a control device, 16 is a load, and 17 is a pallet. In Fig. 1, the left and right posts 4, the photoelectric switch 8 attached to the posts, and the protrusion detection unit (7) that detects the output state of the photoelectric switch 8 and detects the protrusion in the transport direction of the load (7).
(not shown) constitutes a photoelectric detection section. An OR circuit can be used as the simplest protrusion detection section.

The output of the photoelectric switch 8 may be input into a microcomputer or the like to detect the protrusion.

Two sets of photoelectric detection units are prepared in the transport direction.

These two sets of photoelectric detectors check whether there is any protrusion in the transport direction. Also, there is a bladder button 5 attached to the post 4 of one of the photoelectric detectors. The roller 6, wire rope 7, and limit switch 9I constitute a linear body type detection section. The wire rope 7 is stretched in three directions: the left-right direction and the height direction, so that protrusions in the three directions can be detected.

Next, the operation of the apparatus shown in FIG. 1 will be explained. First, the goods to be transported are placed on the warehousing station (2) using a forklift or the like. After this placement, two sets of photoelectric detectors detect the protrusion of the load in the transport direction. As shown in FIG.
18) in the figure can be detected by determining that there is a projecting area. Further, since a plurality of photoelectric switches 8 are arranged in the height direction, it is possible to detect which load is protruding depending on which position of the photoelectric switch blocks the light. When there is a business trip, the revolving light 10 lights up and the indicator light in the display box 11 lights up to display which part of the load is on the business trip. Since the protrusion on the two sides in the conveyance direction is eliminated, the conveyed object is conveyed in the direction from ■ to ■. At this time, the linear body type detection unit detects the presence or absence of a protrusion on the surface of the conveyed object in the remaining direction. If a business trip is detected,
The conveyors 2 and 3 immediately stop and the revolving light 10 lights up. In this case, the conveyed item is returned to direction (3), the packing form is corrected, and then conveyed again in the direction (2).

Note that as the above-mentioned linear body, metal wires such as piano wires, ordinary ropes, strings, etc. can be used.

According to this embodiment, it is possible to easily detect whether the package is within the specified dimensions, which greatly contributes to improving work safety, improving efficiency, and saving labor. .

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to automatically detect whether the package is within the specified dimensions.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram for explaining detection of protrusion in the transport direction of a transported object. 1.3...Chain conveyor, 2...
Laura Konobeya, 4...Post, 5...
・Bracket, 6...Roller, 7...Wire rope, 8...Bokukoden Suibuchi, 9...Limit Nuitchio 1 figure, 2 figures

Claims (1)

[Claims] 1. In a package detecting device for detecting the package shape of a conveyed object, two sets of photoelectric detectors are provided in the conveying direction to detect protrusions on two sides in the conveying direction of the conveyed object; ,
A linear detection unit is provided to detect the protrusion on two sides in the direction perpendicular to the conveyance direction and the protrusion in the height direction, and the operation signals of the respective detection units are used to detect the packaging state of the conveyance item. A packaging detection device characterized by detecting an abnormality in.