JPS594641B2 - Glass container inspection equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for inspecting the surface shape of a glass container.

Conventionally, as a device for simultaneously inspecting the surface condition of a glass container, that is, the ellipse, eccentricity, and external diameter, a mold-like body having a standard-shaped hollow part is lowered from above, and the mold-like body is placed at a predetermined position. There was a type of bottle in which if the bottle did not descend to a certain point, it was rejected as a defective bottle.

However, this device can only check the maximum diameter, and if the bottle surface is partially depressed or the diameter of the body is less than the specified dimensions, it will be judged as good, and if the bottle has a concave body, the concave part cannot be inspected at all. It had various drawbacks such as, and lacked practicality. The present invention has been completed in order to solve these drawbacks, and includes a bottle transport means for transporting the bottles to be inspected, a bottle interval adjustment means for arranging the bottles to be inspected at equal intervals, and a means for adjusting the intervals between the bottles to be inspected. means for conveying while rotating; and a pair of link mechanisms that support a pair of measuring rods that are in contact with the height of the bottle body above the reference block forming the rotational reference line so as to be able to move only in parallel. and a measuring means comprising a device for detecting the moving distance of the link mechanism, and a means for determining the presence or absence of deformation, depression, eccentricity, etc. in the bottle to be inspected based on the signal from the measuring means. be.

In the following, the present invention will be explained in more detail with reference to illustrated embodiments.

The glass container 1 transferred by a conveyor (not shown) is transferred to a machine conveyor 2, and a reference block 3 placed on one side of the machine conveyor 2 (upper side in FIG. 1) and on both sides of the machine conveyor 2 are placed. It moves forward while being guided by the guide blocks 4 and 5 placed there.

Note that the guide block 4 is located above the reference knob 3 as shown in FIG. The glass container 1 is placed on a star wheel 6 installed on the side of the machine conveyor 2.
The reference blocks 3 are arranged at equal intervals, are pressed against the reference block 3 by a rotating transfer belt T provided on the opposite side of the reference block 3, and are sent to the detection section C while rotating. This rotating transfer belt T is 2 to 3 times the upper surface of the machine conveyor 2.
It is installed at an angle of 30 degrees, and when the inspection speed is increased, the glass container 1 is prevented from lifting off the machine conveyor 2, and the glass container 1 is rotated while being pressed against both the reference block 3 and the machine conveyor 2. It is ready to be transported. Furthermore, the rotational speed of said rotation 35 transfer belt T is such that the machine-once conveyor is such that only one glass container 1, which is arranged at equal intervals by the star wheel 6, is placed into the measuring rod 13a, b. It is adjusted to rotate at a speed that is sufficiently faster than the transport speed of No. 2.

A pair of left and right ring plates 11 are provided on both sides of the machine conveyor 2 of the detection section C.

Each ring plate 11 includes an arm 10a rotatably attached to a shaft 9a, 9b provided upright on the bed 8;
It is supported at the tip of 10b via shafts 12a and 12b. These shafts 9a, 9b1 shafts 12a, 12b constitute four corners of a parallelogram,
The ring plate 11 is supported so as to be able to move only in parallel. A similar support arrangement is provided on the opposite side of the ring plate 11 as shown. Measuring rods 13a and 13b are attached to the inside of each ring plate 11, and a differential transformer 14 is attached behind each measuring rod.

These measuring rods 13a, 13b are pressed by the spring of the differential transformer 14, and are normally projected slightly inward from the guide blocks 4, 5 and the reference block 3.
It is also possible to provide a ring plate and a measuring rod for mouth inspection at a height that contacts the mouth of the glass container 1 as shown in the diagram.

The signal from the differential transformer 14 is configured to pass through a known pass/fail determining circuit and turn on and off a defective product exclusion device (not shown). A pair of measuring rods 13a and 13b arranged on the same plane with the machine conveyor 2 in between are arranged on the same plane when the glass container 1 is deformed into an elliptical shape. simultaneously move in the direction away from the machine conveyor 2 (hereinafter referred to as the 10 direction), and at the same time the short axis touches the machine conveyor 2 (hereinafter referred to as the 10 direction).
move in one direction) at the same time.

In addition, if the glass container 1 has a depression, the measuring rod 13a,
Only one of the measuring rods 13b moves in one direction, and if the glass container 1 is eccentric, one of the measuring rods 13a and 13b moves in one direction and the other moves in one direction. Furthermore, if the outer diameter of the glass container 1 is too large, the measuring rods will move in ten directions; on the other hand, if it is too small, the measuring rods will move in one direction. Therefore, by detecting the moving distance of these measuring rods using the differential transformer 14, it is possible to determine whether the glass container is deformed, dented, eccentric, etc. Note that by using the measuring rod for measuring the mouth described above, deformation of the mouth of the glass container can be similarly inspected. As described in detail above, according to the apparatus of the present invention, the ellipse, eccentricity, and size of the outer diameter of a glass container can be inspected at the same time. Most of the shape defects that are unacceptable for glass containers can be detected.

Therefore, the present invention has great practical value.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being a plan view and FIG. 2 being a front view. 1...Glass container, 2...Machine conveyor, 3...Reference block, 6...Star wheel, 7...Rotating transfer belt ,9a,
9b...Shaft, 10a, 10b...
・Arm, 11...Ring plate, 12a,
12b...Shaft, 13a, 13b...
...Measuring rod, 14...Differential transformer.

Claims (1)

[Claims] 1. A bottle transport means for transporting the bottles to be inspected, a bottle interval adjustment means for arranging the bottles to be inspected at equal intervals, a means for transporting the bottles to be inspected while rotating, a reference block forming the rotation reference line, and Measuring means comprising a pair of link mechanisms that support a pair of measuring rods above the rotating transfer belt and in contact with the height of the bottle body so that they can only move in parallel, and a device that detects the distance traveled by the link mechanisms; A glass container inspection device comprising means for determining the presence or absence of deformation, depression, eccentricity, etc. in the bottle to be inspected based on a signal from the measuring means.