JPH0545102A - Gage for discriminating bottom part of vessel - Google Patents

Abstract

PURPOSE:To discriminate the quality of a bottom part of a vessel easily and in a short time. CONSTITUTION:A gate-shaped frame body 1 set on a reference plane 3, a plurality of measuring pieces 7 disposed linearly and inserted through this frame body 1 so that they can move up and down, and a limit gage 8 provided in the upper part of the frame body 1 in proximity to these measuring pieces 7 and having a slit 9 of a required height dimension width, are provided. According to this constitution, the lower end of each measuring piece 7 is brought into contact with the inner bottom surface 11 of a vessel 10 placed on the reference plane and discrimination is made according to whether necessary parts of the measuring pieces are positioned inside the slit 9 or not.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container bottom discriminating gauge, and more particularly to a container bottom discriminating gauge for discriminating whether or not the thickness of the bottom of a container made of fired refractory such as a bowl is good or not. ..

[0002]

2. Description of the Related Art Conventionally, in order to determine the quality of the bottom of a container of this type, the wall thickness of the bottom is measured with a pass, a micrometer, a height gauge, a caliper, a ruler, etc. I judge and go.

[0003]

However, in the above-mentioned conventional technique, when the thickness of the bottom portion of the container is measured by a measuring instrument, it cannot be measured unless the container has a low edge because of its structure. Since the shape is limited or the bottom wall thickness cannot be measured directly, the bottom wall thickness must be calculated from the measured values of other parts,
It was not possible to quickly measure all of the containers produced in large quantities, which hindered the improvement of productivity.

Further, not only the thickness of the bottom portion but also the height from the reference surface to the inner bottom surface of the container when the container is placed on the reference surface must be measured at several points. In addition, the strain on the bottom affects the accuracy of the measurement, which further hinders the improvement of productivity. Therefore, the present invention can easily determine the quality of the bottom of the container in a short time,
The purpose of the present invention is to provide a gauge for discriminating the bottom of a container that can contribute to productivity improvement.

[0005]

In order to solve the above-mentioned problems, a bottom discrimination gauge of a container according to the present invention comprises a gate-shaped frame body placed on a reference plane, and a linear arrangement on the frame body. It is provided with a plurality of measuring elements that are vertically movable and a limit gauge that is provided in the upper part of the frame in the vicinity of these measuring elements and that has a slit with a required height dimension width. Further, it is preferable that the frame body includes a mirror that projects an image of the tracing stylus array that has passed through the slit.

[0006]

In the above means, the lower end of each probe is brought into contact with the inner bottom surface of the container placed on the reference surface, and the bottom of the container is determined depending on whether or not the required portion of these probes is located in the slit. It is determined whether the wall thickness and strain of are within the required range. Further, the provision of the mirror facilitates the visual recognition. The reflecting surface of the mirror preferably has a variable angle, and by doing so, the visual recognition position of the image of the tracing stylus row can be freely set.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a bottom discrimination gauge of a container according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a gate-shaped frame body placed on a reference surface 3 such as a surface plate 2 and side plates 4 standing upright to face each other.
And a horizontal connecting plate 5 for connecting the vicinity of the upper portions of these side plates 4 and supporting a probe to be described later. The connecting plate 5 is provided with a plurality of guide holes 6 penetrating in the up-down direction in a linear shape spaced apart in the longitudinal direction, and each guide hole 6 has a rod-shaped probe 7 having a required length. Is inserted so that it can move up and down. Then, each of the tracing stylus 7 is provided so that one end thereof is connected to the upper end thereof and the other end thereof can be collectively lifted by a string (not shown) connected to a ring-shaped handle. There is.

A limit gauge 8 extending in the up-down direction is provided in the upper part between the both side plates 4 of the frame body 1 in the vicinity of the row of the measuring heads 7. The limit gauge 8 has a required height. A rectangular slit 9 having a width is formed. Here, the required height dimension width is, for example, the height obtained by adding the desired thickness dimension of the bottom portion 11 of the container 10 to the upper end position of the probe whose lower end is in contact with the reference surface 3, Is a value obtained by adjusting the thickness of the bottom portion 11 of the container 10 and the allowable dimension of strain.
Further, the mirror 12 for projecting the image of the 7 rows of the measuring elements through the slits 9 is arranged on the upper portion between the both side plates 4 of the frame body 1 so that the reflection surface is about 45 ° with respect to the reference surface 3. Are provided.

In the bottom discriminating gauge of the container having the above construction, after the frame 1 is placed on the reference surface 3, the measuring elements 7 are collectively lifted by the handle to place the container 10 on the reference surface 3. Then, remove the handle and attach the lower end of the probe 7 to the bottom 11
Abut. Then, the image of the upper end of each probe 7 that has passed through the slit 9 is observed from above by the mirror 12, and when the image of the upper end is projected on the mirror 12, the container 10
While the bottom portion 11 is determined to be good, it is determined to be defective when the image at the upper end is not projected on the mirror. In addition, the height of the frame 1 and the container 10 is large,
Alternatively, when the reference surface 3 is high, it is determined whether or not the upper end of the probe 7 is within the slit 9 without using the mirror 12. Here, the time required to determine the bottom portion 11 of the container 10 was shortened to 5 seconds from the conventional 5 minutes to 1/60, and productivity was dramatically improved.

The mounting of the frame 1 on the reference surface 3 is not limited to the above-mentioned case, the frame 1 is supported by an appropriate fixing system, and the surface plate 2 on which the container 10 is mounted is fixed from below. You may make it contact | abut to the frame body 1. In this case, the tracing stylus 7 is not supported by a string or the like, and a stopper ring is fitted at a required position of each tracing stylus 7, or as shown in FIG. While providing 72, an engaging recess 61 for accommodating the large diameter portion 72 is provided above the guide hole 6 of the connecting plate 5 to prevent the measuring element 71 from falling out of the guide hole 6. When the means shown in FIG. 2 is used, when the frame 1 is placed on the reference surface 3, the upper end surface of the probe 71 and the connecting plate 5 are connected.
Is preferably flush with the upper surface of the
It is desirable that the length of the large-diameter portion 72 is slightly shorter than the depth of the engaging recess 61 of the guide hole 6. In order to prevent the measuring element 71 from falling off by taking the means shown in FIG.
As shown in FIG. 4, the container 10 is placed on the reference surface 3, and then, as shown in FIG. 4, the frame body 1 having the probe 71 is placed, and the upper end 72 of the probe 71 is passed through the slit 9. By visually recognizing the state, the quality of the bottom portion 11 of the container 10 is determined, and thereafter, as shown in FIG. 5, the frame 1 is removed, the container 10 is removed, and the container 10 to be determined next is mounted on the reference surface 3. It may be placed.

Further, the required height dimension width of the slit 9 is
It is not limited to the case where the thickness of the bottom portion 11 of the container 10 and the allowable dimension of strain are adjusted to the reference position described above, and a transparent plate is fitted to have a wider width than this, and the above-mentioned dimension width is expressed on this transparent plate. A reference line may be inserted. In these cases, it is not limited to the case where the upper end of each of the measuring heads 7 and 71 is used as a mark, and each measuring head 7 may be marked with a scale or the like.

Furthermore, the mirror 12 is not limited to the case where the reflecting surface is fixed, and for example, as shown in FIG. 6, a cylindrical shaft portion 131 is provided at the lower edge portion of the mirror 13, and the shaft portion 131 is made of felt. The shaft core 14 having a higher frictional force may be inserted by winding the same, and the shaft core 14 may be horizontally mounted between the side plates 4 to semi-fix the reflection surface by the frictional force so that the angle can be varied, or as shown in FIG. In addition, a screw 16 is screwed into the shaft portion 131 of the mirror 13 from the side plate 4 by interposing a spring 15 to semi-fix the reflecting surface by a spring force so that the angle can be changed, or as shown in FIG. The thumbscrew 17 is screwed into the shaft 131 from the outside of the side plate 4, and the mirror 1
Alternatively, the thumbscrew 17 may be screwed in after the reflecting surface of 3 is set to a desired angle, and fixed by the frictional force between the side plate 4 and the shaft portion 131. By thus changing the angle of the reflecting surface of the mirror 13, the visual recognition position of the image of the tracing stylus row can be freely set, and the discrimination work becomes easy.

[0013]

As described above, according to the bottom discriminating gauge of the container of the present invention, the lower end of each measuring element is brought into contact with the inner bottom surface of the container placed on the reference surface, and the required parts of these measuring elements are contacted. It is determined whether the thickness and strain of the bottom of the container are within the required range depending on whether or not the bottom of the container is located within the slit. It is possible to make a distinction, which in turn contributes to improved productivity. Also, by providing a mirror,
Since the visual recognition becomes easy, the workability can be further improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a bottom discrimination gauge of a container according to an embodiment of the present invention.

FIG. 2 is a sectional view of an essential part of a bottom discrimination gauge of a container according to another embodiment of the present invention.

3 to 5 are perspective views showing a process of using the bottom discrimination gauge of the container of FIG.

FIG. 6 is an explanatory view showing another mounting means of the mirror of the bottom discrimination gauge of the container.

FIG. 7 is a front view showing still another mounting means of the mirror of the bottom discrimination gauge of the container.

FIG. 8 is a perspective view showing still another attachment means of the mirror of the bottom discrimination gauge of the container.

[Explanation of symbols]

 1 Frame 3 Reference plane 7 Stylus 8 Limit gauge 9 Slit 12 Mirror 13 Mirror

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsumasa Hasegawa No. 1 Minamito, Ogakie-cho, Kariya city, Aichi Toshiba Ceramics Co., Ltd. Kariya factory

Claims (2)

[Claims] 1. A gate-shaped frame body mounted on a reference plane, a plurality of measuring elements linearly arranged in the frame body and vertically movably inserted, and a frame close to these measuring elements. A bottom determination gauge for a container, comprising: a limit gauge provided on an upper part of the body and having a slit having a required height and width. 2. The bottom discrimination gauge for a container according to claim 1, further comprising: a mirror for projecting an image of the tracing stylus array that has passed through the slit in the frame.