JP3020865B2 - Plastic box inspection equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic box for storing a container such as a bottle, and more particularly to a plastic box inspection device for detecting damage to a handle.

[0002]

2. Description of the Related Art Bottles filled with beverages and the like produced at a conventional production site are stored in a plastic box 2 as shown in FIG. 4 and shipped to a distribution site. And returned to the production site again, washed and reused. By the way, such a plastic box 2, especially its handle 5, may be damaged in the course of its distribution.

[0003]

The plastic box thus damaged cannot be reused and must be removed after cleaning. Then, the inspection of the box is performed, and such an inspection is to detect the damage by looking at the box one by one. However, some of the damage
We can distinguish that it is obviously damaged, such as partial loss
There are some, but in the case of fine cracks (cracks),
It was difficult to detect by visual inspection by humans. As a result, it is difficult to determine whether or not the worker is damaged, resulting in excessive work being performed by the worker.Also, the determination may vary due to changes in the working conditions of the worker, or the determination may be made for each worker. There is a problem that it is difficult to obtain an appropriate result due to individual differences.

[0004] Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional inspection method and to solve the problem of minute cracks (cracks).
The inspection of whether or not the plastic box including (h) has been damaged can be carried out without visual inspection of the worker, and the worker is not overworked.
Another object of the present invention is to provide a plastic box inspection apparatus that can obtain an appropriate result without causing a variation in the determination due to a change in the working condition of the worker or an individual difference of the worker.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a plastic box inspection apparatus, comprising: a plastic box inspection apparatus having an open upper surface; disposed within, comprise a pressing member for distorting the plastic box making, and damage detecting means for detecting damage to the plastic box making optically, the pressing
The components are inside the plastic box,
Is located at the position where the handle is pushed out, and the damage detection means
Installed outside the plastic box
A light projecting member that projects light on the handle, and a light projecting member
Therefore, monitor the part of the plastic box where the light was projected
It is characterized by being constituted by a camera .

According to a second aspect of the present invention, there is provided a supporting machine frame,
For transporting plastic boxes on the supporting machine frame
And a conveyor provided above the conveyor.
Rotor that rotates in synchronization with the movement of
And transported inside the plastic box
An opening and closing arm that is movable in a direction perpendicular to the direction,
An opening and closing arm provided on the supporting machine frame for opening and closing the opening and closing arm.
Closing means, and the pressing member is attached to the tip of the opening / closing arm.
It is characterized by being attached .

According to the third aspect of the present invention, the opening and closing arm is
The base end is pivotally supported by a bracket provided on the
It has a follower, and the opening / closing means is a cap attached to the supporting body.
The camshaft is configured with the rotation of the rotor.
When the follower engages the cam, the opening / closing arm
It is characterized by expanding and pressing the inner surface of the plastic box .

According to the invention described in claim 4, the conveyor has one end.
Are pivotally supported by a supporting body and are rotatable .

[0009]

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention shown in the drawings includes a supporting machine frame 1, a conveyor 3 provided on the supporting machine frame 1 for transporting a plastic box 2, and a conveyor 3.
And a rotor 4 which rotates in synchronization with the movement of the conveyor 3 and which is provided on the rotor 4 and is movable inside the plastic box 2 in a direction perpendicular to the carrying direction thereof. Opening / closing arm 6 and supporting machine frame 1
And a damage detecting means 8 provided outside the plastic box 2 for optically detecting damage to the plastic box 2.

The conveyor 3 has a conveyor member 13 wound around a drive pulley 11 and a driven pulley 12 rotatably supported at front and rear ends of a support member 9 disposed below the rotor 4. . The rotating shaft 14 of the driving pulley 11 is
The support member 9 is supported at its center by an upper end of a screw rod 16 that is rotatably provided on the support frame 1.
The screw rod 16 is screwed to a bevel gear 17 rotatably supported by the supporting machine frame 1, and a bevel gear 18 meshed with the bevel gear 17.
Is rotatably supported by the supporting machine frame 1, and the bevel gear 18 is mounted on a rotating shaft 19 rotatably supported by the supporting machine frame 1, and the rotating shaft 19 is rotated by a handle 21. It is supposed to be.

The rotor 4 has a pair of rotor members 23 which are attached to a rotating shaft 22 rotatably supported by the supporting machine frame 1 at a distance and opposed to each other. The box 2 has a plurality of substantially radial protrusions 24 having a width smaller than the length of the toe surface of the box 2. The projection 24 is provided with a slot 20 in the same direction as the projection 24, and a pair of brackets 26 are provided along the slot 20 on the radially inner surface of the projection 24. A base end of the opening / closing arm 6 disposed in the slot 20 is pivotally supported by the bracket 26, and a spring 27 is stretched between the opening / closing arm 6 and the bracket 26.
Is biased so that its free end is at an inner closed position, and a pressing member 25 composed of a plurality of rotating rollers is attached to the free end at different positions in the radial direction.

The opening / closing arm 6 is a cam follower.
When the rotor 4 rotates, the cam follower 28 engages with a cam 29 attached to the supporting body 1 which is a component of the opening / closing means 7, thereby expanding the opening / closing arm 6 and pressing the cam member. 25 presses the inner surface of the handle 5 of the plastic box 2.

A sprocket 31 is provided on the rotating shaft 14 of the driving pulley 11 of the conveyor 3, and a sprocket 32 is provided on the rotating shaft 22 of the rotor 4.
And sprockets 34 and 35 are mounted on a rotating shaft 33 supported by the supporting machine frame 1 between them, and a sprocket 38 is mounted on a driving member 37 provided on a base 36. And chain 39 to sprockets 31, 34, 38
, And a chain 41 is wound around the sprockets 32 and 35.

When the plastic box 2 is conveyed to the conveyor 3 and passes through the inspection position, and the inner surface of the handle 5 is pressed by the opening / closing arm 6 as described below, the handle 5 is moved to the handle 5 as shown in FIG. Damage detecting means 8 is arranged on the supporting machine frame 1 at a position facing the same. And this damage detecting means 8
Has a light projecting member 42 made of a halogen light, and a detecting member 43 made of a CCD camera for monitoring the handle 5 of the plastic box 2 on which light is projected by the light projecting member 42. Reference numeral 45 denotes a proximity switch for detecting the original position of the rotor 4.

According to the first embodiment, when the plastic box 2 is inspected, when the leading plastic box 2 is conveyed from the right in FIG. 1 and reaches the position A, a sensor (not shown) detects this. Then, the driving member 37 is actuated by control means (not shown) to rotate the sprocket 38, and the sprockets 31, 34
Is rotated. Then, the conveyor 3 is operated by the rotation of the sprocket 31, and at the same time, the rotor 4 is rotated by rotating the sprocket 32 via the chain 39. In this manner, in synchronization with the advance of the plastic box 2 as indicated by the arrow in FIG. 2, the rotor 4 rotates clockwise as indicated by the arrow.

When the rotor 4 rotates in this manner, the cam follower 28 is engaged with the cam 29, and as shown in the lower part of FIG. 3, the opening / closing arm 6 of the opening / closing means 7 is expanded outward, and The handle 5 on which light is projected by the light projecting member 42 of the plastic box 2 is pushed open. By this, handle part 5
If there is a flaw, the detection member 43 detects that the flaw is spread and observing the same part, and this is transmitted to the control means, and the plastic box 2 is discarded in a discard area (not shown) of the transport destination. Is done.

In the inspection as described above, when the plastic box 2 is large, the pressing member 25 arranged radially inward of the opening / closing arm 6 causes a small box. Has a pressing member arranged radially outward
25 presses the inner surface of the plastic box 2.

In this way, after the inspection is completed, the cam follower 28 is disengaged from the cam 29 by the rotation of the rotor 4, and the opening / closing arm 6 of the opening / closing means 7 is contracted inward as shown in the upper part of FIG. Then, the plastic box 2 moves upward away from the handle 5 and the inspection of the plastic box 2 is completed.

The second embodiment of the present invention shown in FIG. 5 uses a working cylinder 46 utilizing fluid pressure as an opening / closing means for opening / closing the pressing member 25, and the working cylinder 46 is arranged horizontally. A fluid pipe 47 is connected, and pistons 48 are provided at both ends thereof so as to be able to advance and retreat, and can be moved up and down as shown by an arrow by an operating mechanism (not shown), and the movement thereof is synchronized with the plastic box 2. It is installed so that it can move in the direction.

When inspecting the plastic box 2 according to the second embodiment, the conveyor 3 is operated to move the plastic box 2 in the same manner as in the first embodiment, and at the same time, in synchronization with the operation. The working cylinder 46 located above the plastic box 2 is moved downward. Then, in synchronization with this movement, fluid pressure is caused to flow through the fluid pipe 47 into the working cylinder 46, and the piston 48
Is moved outward, and as shown in FIG.
Thus, the opening / closing arm 6 of the opening / closing means 7 is opened outward, the handle 5 of the plastic box 2 is pushed open, and the light projection member 42 and the detection member 43 inspect the flaw.

After the inspection is completed, the piston 48 is moved inward of the working cylinder 46, separated from the handle 5 of the plastic box 2, and the working cylinder 46 is moved upward.
The inspection of the plastic box 2 is completed.

The third embodiment of the present invention shown in FIG. 6 uses a bag member 49 that expands by fluid pressure as an opening / closing means for opening / closing the pressing member 25.

According to the third embodiment, when inspecting the plastic box 2, the conveyor 3 is operated to move the plastic box 2 in the same manner as in the first embodiment, and at the same time, the plastic box 2 is moved in synchronism therewith. The bag member 49 located above the box 2 is moved downward. Then, in synchronization with this movement, a fluid pressure is supplied from a fluid pressure source (not shown) into the bag member 49 to expand the bag member 49,
As shown in FIG. 6, the opening / closing arm 6 of the opening / closing means 7 is opened outward by the bag member 49, and the handle 5 of the plastic box 2 is pushed open, so that the light projecting member 42 and the detecting member 43 Inspection of

After the completion of the inspection, the flow of the fluid pressure from the fluid pressure source is stopped, the bag member 49 is communicated with the atmosphere to reduce the size, and the bag member 49 is separated from the handle 5 of the plastic box 2 and moved upward. The inspection of the plastic box 2 is completed.

The mechanism for pushing and opening the handle portion 5 of the plastic box 2 is not limited to the above-described embodiment, and other than these, a mechanism using a crank mechanism (not shown) may be used. Is also good.

During the inspection as described above, if a trouble occurs in the apparatus, the handle 21 is operated to rotate the rotating shaft 19 and the bevel gear 18 to rotate the bevel gear 17. Then, the screw rod 16 is lowered, and the plastic box 2 is taken out of the apparatus by inclining the conveyor 3 about the rotation shaft 14 as shown by a chain line in FIG.

[0028]

The present invention is as described above. In the plastic box inspection apparatus, the invention described in claim 1 is:
Placed inside a plastic box with an open top,
It comprises a pressing member for distorting the plastic box making, and damage detecting means for detecting damage to the plastic box making optically
And the pressing member is inside the plastic box,
It is located at the position where the handle of the plastic box is pushed out,
The damage detection means is provided outside the plastic box,
A light projecting member that projects light onto the handle of the plastic box,
Of the plastic box on which light is projected by the light
Because it is composed of cameras that monitor the parts,
About damage of plastic box including small crack (crack)
There are, to be able to perform without a check whether it is damaged by visual workers, without being a excessively heavy labor workers, also a variation in its determination by a change in working conditions of the personnel There is no effect and there is no individual difference between workers, and there is an effect that an appropriate inspection result can be obtained automatically.

[0029] The invention according to claims 2 , 3 and 4 provides a supporting machine.
The frame and the plastic box mounted on the frame
And a conveyor provided above the conveyor,
A rotor that rotates in synchronization with the movement of the conveyor and this rotor
Provided inside the plastic box,
An opening and closing door that is movable in the direction perpendicular to the transport direction
Arm and the open / close arm provided on the support frame.
Closing means for opening and closing, and a pressing member of the opening and closing arm is provided.
It is attached to the tip, and the open / close arm is mounted on the rotor.
Cam follower whose base end is pivotally supported by a bracket
The opening / closing means is provided by a cam attached to the supporting body.
The cam follower as the rotor rotates.
By engaging with the cam, the open / close arm expands.
Presses the inner surface of the plastic box, one end of the conveyor is supported
Because it is pivotally supported by the fuselage and can be rotated , the inner surface of the plastic box can be accurately and reliably pushed out without performing any special manual operation at the time of inspection , and it is also affected by environmental changes etc. It is possible to accurately and evenly determine the presence or absence of scratches without any problems, and if an accident occurs in the equipment, easily remove the plastic box on the conveyor that interferes with the processing by a simple operation There are effects such as being able to.

[Brief description of the drawings]

FIG. 1 is a front view of a first embodiment of the present invention.

FIG. 2 is an enlarged front view of a main part of the above.

FIG. 3 is a right side view of the above and is an operation explanatory view.

FIG. 4 is an explanatory view of the operation of the damage detection means.

FIG. 5 is a schematic front view of a second embodiment of the present invention.

FIG. 6 is a schematic front view of a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Supporting machine frame 2 Plastic box 3 Conveyor 4 Rotor 5 Handle 6 Opening / closing arm 7 Opening / closing means 8 Damage detecting means 9 Support member 11 Drive pulley 12 Follower pulley 13 Conveyor member 14 Rotating shaft 16 Screw bar 17 Bevel gear 18 Bevel gear 19 Rotating shaft 21 Handle 22 Rotating shaft 23 Rotor member 25 Press member 26 Bracket 28 Cam follower 29 Cam 31 Sprocket 32 Sprocket 33 Rotating shaft 34 Sprocket 35 Sprocket 37 Driving member 38 Sprocket 39 Chain 41 Chain 42 Light projection member 43 Detection member 46 Operation Cylinder 47 Fluid pipe 48 Piston 49 Bag member

Continuation of the front page (56) References JP-A-5-52759 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01N 21/84-21/958

Claims (4)

(57) [Claims] 1. A are arranged inside the plastic box making the upper surface is opened, a pressing member to provide a strain in the plastic box making, comprise a damage detecting means for detecting damage to the plastic box making optically, the pressing The member is a plastic box
Inside, push the handle of the plastic box
The damage detection means is located outside the plastic box.
Light that projects and shines light on the handle of a plastic box
A projection member and a projector on which light is projected by the light projection member.
Consists of a camera that monitors the plastic box
And plastic box making inspection and wherein the are. 2. A support frame and a support frame provided on the support frame.
Conveyor for transporting plastic boxes and this conveyor
It is provided above and rotates in synchronization with the movement of the conveyor.
Rotor and the plastic provided on the rotor.
Can be moved in the box at right angles to the transport direction
Opening / closing arm and the supporting machine frame
Opening and closing means for opening and closing the opening and closing arm.
The material is attached to the tip of the opening / closing arm.
The plastic box inspection apparatus according to claim 1, wherein 3. An opening / closing arm includes a bracket provided on a rotor.
With a cam follower pivoted at its base end
The closing means is constituted by a cam mounted on the supporting body.
The cam follower is moved to the cam with the rotation of the rotor.
Engagement opens and closes the open / close arm, which increases plastic
3. The method according to claim 2, wherein the inner surface of the box is pressed.
Plastic box inspection device. 4. The conveyor has one end pivotally supported by a supporting body.
4. The apparatus according to claim 3, wherein
The described plastic box inspection device.