JPH0742086Y2 - Posture control device for molded products - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a posture control device for a molded product, and more specifically,
When the appearance of a molded product is inspected using a TV camera, the molded product is elastically deformed so that the inspected part of the molded product can be easily brought into the field of view of the TV camera.

[Conventional technology]

An image processing system using a TV camera was developed to inspect the appearance of the molded product, and as a part of that, an attitude control device was developed that elastically deforms the molded product and makes it easier to put the inspected part of the molded product into the field of view of the TV camera. Has been done. The visual inspection is carried out to check whether or not the molded product has a surface defect such as unnecessary unevenness.

This will be described by taking the oil seal (1) of FIG. 2 as an example. The outer appearance of the annular lip (2) provided in the oil seal (1) (3, a groove (3) into which the garter spring is fitted is checked by the appearance inspection. If there is 4), the outer peripheral surface (3) is checked for surface defects by using the inner wall of the groove (4), the same applies hereinafter) as the inspected portion. The annular lip (2) is entirely molded with a rubber-like elastic material. As shown in FIG. 3, the oil seal (1) is fitted into the upper surface recess (6) of the turntable (5), and is arranged above while being rotated together with the turntable (5) by a rotary drive source (not shown). Take a picture with the TV camera (7). The reason why the oil seal (1) is rotated is to inspect the oil seal (1) over the entire circumference after the photographing area of the TV camera (7) is fixedly set. However, if the TV camera (7) is arranged above the oil seal (1), the outer peripheral surface (3) of the annular lip (2) cannot be brought into the field of view of the TV camera (7), and the field of view is also entered. However, since the TV camera (7) and the outer peripheral surface (3) of the annular lip (2) do not face each other, a clear image may not be obtained in some cases. Therefore, conventionally, an attitude control device including a pressing member (8) as shown in FIG. 3 is provided, and the pressing member (8) is moved forward and backward by a drive source (not shown) in the direction of the arrow to move the pressing member (8). ), A part of the annular lip (2) is tilted in the inner peripheral direction, and imaging is performed in this state (FIG. 4).

[Problems to be solved by the device]

 The following problems are pointed out with respect to the above conventional techniques.

That is, firstly, since the pressing member (8) presses and deforms one portion of the circumference of the annular lip (2), the photographing area of the TV camera (7) is defined as the position where the annular lip (2) is deformed. Must match, for this TV camera (7)
There is no degree of freedom in the installation, and it takes time to install.

Secondly, in order to remove the TV camera (7) from the operating range of the pressing member (8), it is necessary to install the TV camera (7) far from the oil seal (1), which is why the TV camera (7) is installed.
A lens with a long focal length must be used. Lenses with long focal lengths are generally expensive and uneconomical.

Thirdly, since the oil seal (1) is fitted and fixed in the upper surface recess (6) of the turntable (5), the attaching and detaching work is complicated. In addition, it is necessary to prepare the rotary table (5) having the recesses (6) of different sizes each time the outer diameter of the oil seal (1) is different.

[Means for Solving the Problems]

In view of the above points, the present invention has an object to solve the problems found in the above-mentioned prior art, and in order to solve this problem, it has an annular lip made of a rubber-like elastic material, In a device for elastically deforming a molded product integrally formed with a film-shaped burr on the inner peripheral side near the tip, it has a substantially cylindrical shape and is rotatably supported by a support member with a substantially vertical center axis as the center of rotation. A toy that mounts the molded product on the upper end face and is connected to a rotary drive source to rotate, and a reciprocatingly arranged inner peripheral side of the toy along the center axis of the yarn toy, and the molded product at the upper end portion. There is provided an attitude control device including an adsorption member that is brought into contact with and separated from the burr, is connected to a reciprocating drive source and reciprocates, and a pipe portion that connects the adsorption unit to an exhaust device.

[Action]

A molded product in which a film-shaped burr is integrally molded on the inner peripheral side near the tip of the annular lip is placed on the yatoy, and the suction member is raised to bring the suction portion of the suction member into contact with the burr. The exhaust device is driven to adsorb the burr on the adsorbing portion, and in this state, the adsorbing member is lowered to a predetermined height position. The burr adsorbed on the adsorbing portion moves downward as the adsorbing member descends, and accordingly the annular lip is tilted toward the inner peripheral side over the entire circumference. In this state, rotate the toy to rotate the molded product and perform necessary inspection work such as shooting with a TV camera. After the work, the exhaust device may be stopped to release the negative pressure in the adsorption section. Burrs will be removed in a later process. Molded products include various lip seals such as dust seals as well as oil seals.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the device has an annular lip (2) made of a rubber-like elastic material, and a film-like burr (9) is integrally formed on the inner peripheral side near the tip of the annular lip (2). The molded oil seal (1) is a control target, has a cylindrical shape, and is rotatably supported by a supporting member (10) via a bearing (11) with a vertically oriented central axis as a center of rotation, and has an upper end surface. A toy (12) that carries the molded product (1) and is rotated by being connected to a rotary drive source (not shown), and coaxially to the inner peripheral side of the toy (12) and to the central axis of the (2). Is arranged so as to be reciprocally movable, and has an adsorption portion (14) at the upper end portion that comes in contact with and separates from the burr (9) of the molded product (1), and is connected to a reciprocating drive source (17) such as an air cylinder. An adsorbing member (13) that reciprocates, and a pipe section (18) that connects the adsorbing section (14) to an exhaust device (not shown). The it has. Piping part (1
8) has an exhaust hole (19) formed in the suction member (13) and a joint (20) connected to the suction member (13) so as to be rotatable relative to each other. A concave portion (15) for adsorption is provided on the upper surface of the adsorption portion (14), and a communication hole (16) that communicates the concave portion (15) and the exhaust hole (19) is formed. The suction recess (15) is formed in an annular groove shape, but may be a plurality of recess groups depending on the case. Communication hole (16)
Are provided in a radial pattern.

As shown in FIG. 1, the oil seal (1) is placed on the toy (12), and the suction member (13) is raised to burr the upper surface of the suction portion (14) of the suction member (13). The suction device (13) is brought down to a predetermined height position while contacting the lower surface of 9) and driving the exhaust device to suck the burr (9) to the suction portion (14). The burr (9) adsorbed to the adsorbing portion (14) moves downward as the adsorbing member (13) descends, and accordingly the annular lip (2) is tilted toward the inner peripheral side over the entire circumference. In this state, rotate the toy (12) to rotate the oil seal (1) together,
Perform necessary inspection work such as shooting with a camera. After the operation, the evacuation device is stopped without raising the suction member (13) to release the negative pressure of the suction portion (13), and the annular lip (2) is restored to its original shape.

The device has the following effects with the above operation.

That is, firstly, the burr (9) of the oil seal (1) is adsorbed by the adsorbing portion (14) of the adsorbing member (13) and lowered to simultaneously tilt the annular lip (2) over the entire circumference. Therefore, a desired position on the circumference can be photographed by the TV camera, and the freedom of installation of the TV camera is increased, and the installation work is simplified.

Secondly, the TV is located above the oil seal (1).
Since it is only a camera, the TV camera has an oil seal (1)
And a relatively inexpensive lens with a short focal length can be used in the TV camera.

Thirdly, since the oil seal (1) is placed on the yatoy (12) and the oil seal (1) is adsorbed to the adsorbing portion (14) of the adsorbing member (13), the attaching and detaching work is easy. . Moreover, the oil seals (1) having different outer diameter dimensions can be used as they are, and the versatility is excellent.

Fourthly, since the tilt angle of the annular lip (2) is uniformly controlled by the descending amount of the suction member (13) without depending on the exhaust capacity of the exhaust device, the elasticity of the annular lip (2) is different. The tilt angles of the annular lips (2) can be made uniform while keeping the exhaust capacity constant for the types of oil seals (1), and this is also versatile.

Fifthly, even if a part of the burr (9) is broken, as long as this broken part and the suction part by the suction part (14) do not match,
The burr (9) can be attracted to tilt the annular lip (2).

[Effect of device]

The control device of the present invention has the following effects due to the above configuration and operation.

Since the burr of the oil seal is attracted to the suction part of the suction member and lowered, the annular lip is simultaneously tilted over the entire circumference, so that a desired position on the circumference can be photographed by the TV camera. The degree of freedom in installing the camera is increased, and the installation work becomes easier.

Since only the TV camera is arranged above the oil seal, the TV camera can be brought close to the oil seal, and a relatively inexpensive lens having a short focal length can be used for the TV camera.

Since the oil seal is placed on the toy and the oil seal is sucked by the suction portion of the suction member, the attaching / detaching work is easy. You can also use this adsorption equipment as it is for oil seals with different outer diameter dimensions.
It has excellent versatility.

Since the tilt angle of the annular lip is controlled uniformly by the amount of lowering of the suction member without depending on the exhaust capacity of the exhaust device, it is possible to keep the exhaust capacity constant for many types of oil seals with different elasticity of the annular lip. The tilt angles of the lips can be made uniform, and from this aspect it is also highly versatile.

Even if a part of the burr is broken, the burr can be sucked and the annular lip can be tilted as long as the broken part and the suction part by the suction part do not match.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a posture control device for a molded product according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of an oil seal, and FIGS. 3 and 4 are explanatory views showing a work procedure of a conventional technique. . (1) ... Oil seal (molded product), (2) ... Annular lip, (3) ... Outer peripheral surface, (4) ... Groove, (5) ... Rotation table, (6) ... Top recess , (7) …… TV camera,
(8) …… Pressing member, (9) …… Burr, (10) …… Supporting member, (11) …… Bearing, (12) …… Gear, (1
3) ... Suction member, (14) ... Suction part, (15) ... Suction recess, (16) ... Communication hole, (17) ... Reciprocating drive source,
(18) …… Piping section, (19) …… Exhaust hole, (20) …… Joint

Claims (1)

[Scope of utility model registration request] 1. A molded product (1) having an annular lip (2) made of a rubber-like elastic material, and integrally forming a film-shaped burr (9) on the inner peripheral side near the tip of the annular lip (2). In a device for elastically deforming, a substantially cylindrical shape is rotatably supported by a support member (10) with a substantially vertical center axis as the center of rotation, and the molded product (1) is placed on the upper end surface to drive the rotation. Source (12) which is connected to the source and rotates, and said unit (1)
A suction part (14) is provided on the inner peripheral side of 2) so as to be able to reciprocate along the central axis of the yatto (12), and at the upper end part, a suction part (14) that comes in contact with and separates from the burr (9) of the molded product (1). An adsorbing member (13) connected to the reciprocating drive source (17) to reciprocate, and a pipe section (18) connecting the adsorbing section (14) to an exhaust device.
Attitude control device for molded products.