JPS6315219Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a posture correction device for an article, which is mainly a long industrial part. The invention relates to a device for inserting an article transferred by a magnetic chuck of a robot from above the input opening of a correction chute having a substantially V-shaped cross section, and correcting the posture of the article in the correction chute. be.

(Prior Art) When taking out articles stacked in bulk on a storage pallet and feeding the articles to the next process, it is necessary to correct the posture of the articles.

Conventionally, in order to correct the posture of an article, as shown in FIG. A modified chute 3' was used which was closed by a front plate 3a'. Then, the articles W stacked in bulk in the storage pallet are adsorbed by the magnetic chuck of the robot and transferred to above the input port of the correction chute 3'.
The posture of the article W in the longitudinal direction is corrected by releasing the magnetic chuck, throwing the article W into the correction chute 3', and sliding the article W along the inside of the chute 3'.

(Problems to be Solved by the Invention) In the above-mentioned conventional method, only by sliding the article W along the inside of the correction chute 3',
This is intended to correct the posture of the article W in the longitudinal direction. Therefore, if the article W that has been attracted by the magnetic chuck and transferred to above the input port of the correction chute 3' is in a bad posture, the article placed into the correction chute 3' will be damaged as shown in FIG. Without correcting the attitude of W, the shoot 3'
In some cases, the article W may slide to a position where it hits the front plate 3a', and there is a problem in that the article W is supplied to the next process without being properly corrected. In addition, there were also problems such as foreign objects and fragments getting mixed into the storage pallet, and problems such as the foreign objects and fragments being fed into the correction chute 3' and then being supplied to the next process. .

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, in this invention, the input port of the correction chute has a first part for preliminarily correcting the vertical posture of the article. A preliminary correction guide member and second and third preliminary correction guide members for preliminarily correcting the posture in the left and right direction are respectively disposed, and further, the front end of the correction chute is opened to serve as a discharge port, and the The discharge port is provided with an opening/closing shutter which is controlled to open and close by an article detection sensor and is opened when there is a foreign article in the correction chute.

(Function) This invention allows the first, second, and third preparatory correction guide members to maintain the vertical and horizontal posture of the article even when the posture of the article transferred by the magnetic chuck is bad. Preliminary correction prevents incorrect posture correction of the article, and when a foreign article is thrown into the correction chute, or in the unlikely event that the posture of the article is not corrected, the detection signal of the detection sensor The function is to open the opening/closing shutter and discharge foreign articles or articles whose posture has been incorrectly corrected from the discharge port of the correction chute.

(Example) An example of this invention will be described below with reference to the drawings.

In FIG. 1, which shows a side cross section of the posture correction device, a correction chute 3 is attached to the upper surface of a base 1 by support legs 2. As shown in FIG. This modified shot 3
has a slope sufficient to allow the article W to slide under its own weight, and is formed in a substantially V-shape in cross section.
Furthermore, the correction chute 3 is opened at its front end (the right end in FIG. 1), and this opening serves as a discharge port. An opening/closing shutter 5, which is opened and closed by an opening/closing cylinder 4, is disposed at the discharge port so as to be openable and closable.

Further, a predetermined number of through holes 6 to 6 are provided at predetermined positions of the correction chute 3, and these through holes 6 to
At a position corresponding to 6, detection sensors 7 to 7 are arranged using phototubes having an arc tube and a light receiving tube. The opening/closing cylinder 4 is operated in response to a detection signal from these detection sensors 7 to 7 of a foreign article, a fragment, or an article whose posture has been improperly corrected, and the opening/closing shutter 5 is set to be opened.

In addition, in this embodiment, a slit-shaped discharge hole 8 is provided along the V-shaped bottom of the correcting chute 3 in order to discharge small debris etc. thrown into the correcting chute 3.
is formed.

On the base 1 on the input port side of the correction chute 3 (on the left side in FIG. 1) are the upper and lower sections of the article W to be transferred toward the input port of the correction chute 3 by the magnetic chuck A of the robot. First preliminary correction guide member 1 for preliminary correction of orientation
1 are arranged at a predetermined height. The first preliminary correction guide member 11 is formed with an inclined guide surface 11a that gradually becomes higher in the direction in which the article W is transported.

Further, second and third preliminary correction guide members 12 and 13 for preliminarily correcting the posture of the article W in the left-right direction are disposed on the left and right sides of the correction chute 3 on the input port side. These second and third preliminary correction guide members 12 and 13 are formed with guide surfaces 12a and 13a, respectively, which are gradually narrowed in the direction of conveyance of the article W and are opposed to each other in a planar shape. has been done. In this embodiment, the second and third preliminary correction guide members 12 and 13 are displaced by a predetermined amount in the front-rear direction (horizontal direction in the figure), as shown in FIGS. 2 and 5. They are facing each other.

Further, in this embodiment, a receiving box 14 for receiving foreign objects and debris is provided in front of the discharge port of the correction chute 3, and a receiving tray 15 for receiving small fragments is provided below the slit-shaped discharge hole 8 of the correction chute 3. It is arranged.

In this embodiment configured as described above, the articles W stacked in bulk in the storage pallet are
is attracted by the magnetic chuck A of the robot, and the correction chute 3 is shown from the left in Fig. 1.
is transferred to the upper part of the input port.

While the article W is being transferred to above the input opening of the correction chute 3, if the article W being attracted by the magnetic chuck A is in a bad posture, for example, the magnetic chuck A may move the article W in the longitudinal direction. When one end of the article W is attracted and faces downward, the vertical posture of the article W is preliminarily corrected by the first preparatory correction guide member 11, as shown in FIG. Further, when the article W is attracted by the magnetic chuck A in a biased manner to the left or right side, as shown in FIG. 5, the second preliminary correction guide member 12 or the third preliminary correction guide The horizontal posture of the article W is preliminarily corrected by the member 13 .

As mentioned above, when the pre-corrected article W is transferred to above the input port of the correction chute 3, the article W is released by the magnetic chuck A, and the article W is thrown into the correction chute 3. . Then,
The article W slides inside the correction chute 3, thereby correcting its longitudinal posture, and is stopped at a take-out position that hits the opening/closing shutter 5 at the front end of the chute 3. In this way, within the correction chute 3, the longitudinal posture of the article W is corrected in the forward or reverse direction. Then, a predetermined number of detection sensors 7
-7, the forward and reverse orientations of the article W with respect to the longitudinal direction are detected. Then, the same magnetic chuck A as above processes the article W, picks up the article W, and then rises. Then, only when the attitude of the article W is reversed, the detection sensor 7
~7 detection signals cause magnetic chuck A.
is rotated by 180 degrees, and after the longitudinal direction of the article W is corrected in the positive direction, it is fed to the next process.

Further, each time the article W at the take-out position in the correction chute 3 is taken out by the magnetic chuck A, the opening/closing cylinder 5 opens the opening/closing shutter 5. For this reason, if the modified shot 3
Even when small pieces or the like are thrown in along with the article W, these pieces fall from the open discharge port of the correction chute 3 and are discharged into the receiving box 14.

Through the steps described above, the posture of the articles W is corrected, but foreign articles and fragments are mixed in with the regular articles W stacked in bulk on the storage pallet, and these foreign articles are transferred to the magnetic chuck A. If the foreign object is small, it will be absorbed by the slit-shaped discharge hole 8 at the bottom of the correction chute 3.
It passes through and falls into the saucer 15. If the above-mentioned foreign article cannot pass through the discharge hole 8 of the correction chute 3, the foreign article slides inside the correction chute 3 and is stopped at the removal position where it hits the opening/closing shutter 5 of the chute 3. Then, the foreign article is detected by a predetermined number of detection sensors 7 to 7,
In response to this signal, the opening/closing cylinder 4 is activated, opening/closing shutter 5 is opened, and foreign objects are removed from the correction chute 3.
It is discharged into the receiving box 14 from the discharge port.

In addition, in the event that the longitudinal posture of the regular article W is not corrected in the correction chute 3,
When the article W slides to the removal position where it hits the opening/closing shutter 5 of the correction chute 3, the article W is recognized as a foreign article by detection by a predetermined number of detection sensors 7 to 7, and the opening/closing shutter is activated by the signal. 5 is opened and discharged into the receiving box 14 from the discharge port of the correction chute 3 in the same manner as foreign articles.

Therefore, the problem that a foreign article or an article whose posture has been improperly corrected at the take-out position of the correction chute 3 is fed to the next process from which it is taken out by the magnetic chuck A is eliminated.

In the above embodiment, phototubes are used as the detection sensors 7 to 7 for articles, but the present invention is not limited to this, and for example, proximity switches may be used. Furthermore, the slit-shaped discharge hole 8 need not necessarily be formed at the bottom of the correction chute 3.

(Effect of the invention) That is, according to this invention, by preliminarily correcting the posture of the article in the vertical and horizontal directions using the first, second, and third preliminary correction guide members, defective posture correction of the article can be prevented. and when a foreign article is thrown into the correction chute, or in the unlikely event that the posture of the article is not corrected, the opening/closing shutter is opened by the detection signal of the detection sensor. From the outlet of the correction chute,
It is possible to eject foreign articles or articles whose posture has been incorrectly corrected. As a result, it is possible to eliminate the problem of a foreign article or an article whose posture has been incorrectly corrected being fed to the next process by the correction chute.

[Brief explanation of drawings]

The drawing shows one embodiment of this invention.
The figure is a side sectional view of the posture correction device, the second figure is a plan view,
Figure 3 is a sectional view taken along the - line in Figure 1, and Figure 4 is a cross-sectional view of Figure 1.
a side sectional view showing an enlarged preliminary correction guide member;
FIG. 5 is an enlarged plan view of the second and third preliminary correction guide members. 6 and 7 show a conventional device, with FIG. 6 being a perspective view and FIG. 7 being a side sectional view. 3...Correction shot, 5...Opening/closing shutter, 7
...Detection sensor, 11...First preliminary correction guide member, 12...Second preliminary correction guide member, 13
...Third preliminary correction guide member.

Claims (1)

[Scope of utility model registration request] A device for inserting an article from above the input opening of a correction chute having a slope sufficient to allow the article to slide under its own weight and having a substantially V-shaped cross section, and correcting the posture of the article within the correction chute. On the entrance side of the correction chute, there are provided a first preliminary correction guide member for preliminary correction of the vertical posture of the article, and second and third preliminary correction guide members for preliminary correction of the horizontal direction posture of the article. Further, the front end of the correction chute is opened to form a discharge port, and the discharge port is controlled to open and close by a detection sensor for articles, and a foreign material is provided inside the correction chute. A posture correcting device for an article, characterized in that an opening/closing shutter that is opened when an article is present is arranged to be openable and closable.