JPH07187356A - Arranging device for article having external shape of cylinder - Google Patents

Abstract

PURPOSE:To provide an arranging device for an article having an external which the inputted article can be accurately arranged besides the inputted article can be sent out in input order. CONSTITUTION:An article arranging device 1 has a pipe having an article receiving part 2 and an article discharging part 3 and having a cylindrical inside surface 4, a permanent magnet 8 to magnetically attract a cylindrical bush 7 inputted inside (6) of the pipe from the article receiving part 2 and a timing belt 15 to move relatively the permanent magnet 8 to the pipe in order to move the cylindrical bush 7 attracted to the permanent magnet 8 toward the article discharging part 3 from the article receiving part 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a bush (cylindrical bearing).
The present invention relates to an apparatus for aligning articles having a cylindrical outer shape such as.

[0002]

2. Description of the Related Art For example, in the manufacture of a cylindrical bush,
First, a blank is formed into a cylindrical body by pressing, and this is aligned in a certain direction via a parts feeder and conveyed to the next shaping step or the like. The parts feeder gives vibration to the cylindrical body put therein and aligns the cylindrical body in a certain direction.

[0003]

By the way, in the conventional parts feeder, it is relatively difficult to align a cylindrical body which is inserted in a specific direction or a cylindrical body whose diameter and length are substantially equal to each other. There is a degree of misalignment in each individual piece, and at present, such misalignment is manually eliminated. Further, in the conventional parts feeder, the thrown-in cylinders are randomly sent out regardless of the order in which they are thrown in, so when a manufacturing defect or the like occurs, it is difficult to determine when it occurred. It takes a lot of time to identify the bush to be discarded or the bush to be reprocessed. The above problems occur not only in the case of the cylindrical bush but also in the case of aligning articles having a generally cylindrical outer shape.

The present invention has been made in view of the above points, and an object thereof is to accurately align magnetically attractable articles having a cylindrical outer shape, In addition, another object of the present invention is to provide an article aligning device having a cylindrical outer shape that can send out the articles in the order in which they are loaded.

[0005]

According to the present invention, the above object is to provide a non-magnetic hollow article receiver having an article receiving portion and an article discharging portion and having an inner surface having a curved cross section of a predetermined curvature. A magnetizing member disposed outside the hollow article receiver so as to magnetically attract an article having a cylindrical outer shape, which is thrown into the hollow article receiver from the article receiving section, and is attracted to the magnetizing member. And a moving means for moving the magnetizing member relative to the hollow article receiving body so as to move the article from the article receiving section toward the article discharging section. It

In the present invention, the magnetizing member is composed of a permanent magnet in one preferred example, but it may be an electromagnet. Further, in one preferable example, the plurality of magnetizing members are provided at a predetermined interval along the moving direction of the article, and more preferably at equal intervals.

In the present invention, a pipe having a cylindrical inner surface can be shown as a preferred example of the hollow article receiver, but the present invention is not limited to this. For example, a gutter-shaped member having a semi-cylindrical inner surface may be used, and the inner surface thereof may be , The cross section may be a perfect circle, may be an ellipse, or may be a curved cross section that draws a parabolic line. The article receiver may have an inner surface having a curved cross section with a predetermined curvature. The inner surface of the hollow article receiver is coated with a resin having low friction such as polytetrafluoroethylene to prevent the article from moving smoothly on the inner surface and scratching the article during movement. Good. Examples of the non-magnetic hollow article receiver include those manufactured from stainless steel, aluminum, non-ferrous metal, plastic, and glass fiber. The degree of curvature of the curved cross section can be determined in relation to the size of the articles to be aligned, particularly the length thereof and the outer diameter thereof. For example, in the case of a cylindrical bush having a length of about 10 mm, it is 1/20 m.
A curvature of the order of m can be shown as a preferred example.

The moving means comprises, in one example, an endless belt which is juxtaposed to the hollow article receiving body and which carries a magnetizing member, and a drive device for running the endless belt. As the endless belt, a timing belt is preferable because it can be synchronized with the supply of articles, but the endless belt is not necessarily limited to this and may be a normal flat belt. The belt traveling speed may be constant or variable.

The article to be aligned by the aligning device of the present invention may be either a magnetically attractable cylindrical body or a solid cylindrical body, as long as the outer shape is cylindrical. Further, it is not necessary that the whole is formed of a magnetic material such as iron. For example, even if the cylindrical outer surface is formed of a synthetic resin layer, the inner solid portion of the cylindrical body is made of synthetic resin and has a cylindrical shape. The outer surface may be formed of a magnetic material.

[0010]

In the aligning device of the present invention, the article having the cylindrical outer shape is loaded into the non-magnetic hollow article receiver through the article receiving portion. Then, the magnetizing member is moved relative to the hollow article receiver by the operation of the moving means. The articles thrown into the hollow article receiver by this movement are attracted by the magnetizing member and moved toward the article discharge section. By this movement, the articles inside the hollow article receiver are aligned and aligned in a stable constant direction by the inner surface having a predetermined curvature in the cross section of the hollow article receiver and the attractive force of the magnetizing member.

Next, the present invention will be further described based on the specific examples shown in the drawings. The present invention is not limited to these specific examples.

[0012]

SPECIFIC EXAMPLE In FIG. 1, an aligning device 1 of this example has a non-magnetic hollow article receiver having an article receiving section 2 and an article discharging section 3 and an inner surface 4 having a curved cross section with a predetermined curvature. In this example, an aluminum pipe 5 and an article having a cylindrical outer shape, which is put into the interior 6 of the pipe 5 from the article receiving portion 2,
In this example, a magnetizing member arranged outside the pipe 5 so as to magnetically attract the iron cylindrical bush 7 whose outer surface is coated with copper, and in this example, the disk-shaped permanent magnet 8 and the permanent magnet 8 are attracted. The moving means 9 is provided for moving the permanent magnet 8 relative to the pipe 5 in order to move the formed cylindrical bush 7 from the article receiving portion 2 toward the article discharging portion 3.

The inner surface 4 of the pipe 5 is cylindrical with a circular cross section. In this example, the article receiving section 2 is formed by cutting out the upper portion of the pipe 5, and the article discharging section 3 is formed by one open end of the pipe 5. The moving means 9 is provided with an endless timing belt 15 that is juxtaposed to the pipe 5 and carries the permanent magnets 8, and a drive device 16 that runs the belt 15. The drive device 16 includes an electric motor 17, a toothed drive pulley 18 attached to a rotation output shaft of the electric motor 17, and a toothed driven pulley 19. The timing belt 15 includes a drive pulley 18 and a driven pulley 19. It is suspended in the middle. In this example, a large number of permanent magnets 8 are attached to the outer surface of the timing belt 15 at predetermined equal intervals. The moving means 9 does not need to be composed of the timing belt 15, the electric motor 17, the toothed pulleys 18 and 19, and the like, but is composed of, for example, a slider carrying the permanent magnet 8 and a linear motor for moving the slider. You may. In this example, the permanent magnet 8 does not come into contact with the outer surface 21 of the pipe 5 in its movement, but the outer surface 21 is not limited to this.
You may make it move in sliding contact with.

In the aligning device 1 formed as described above,
By the operation of the electric motor 17, the belt 15 travels in the A direction via the pulley 18, and the permanent magnet 8 carried on the belt 15 also travels in the A direction. In this state, when the cylindrical bush 7 is thrown into the inside 6 of the pipe 5 from the article receiving portion 2 via the chute 31, the cylindrical bush 7 is the closest permanent magnet among the permanent magnets 8 carried by the belt 15. The magnet 8 is attracted and conveyed in the direction A along with the movement of the permanent magnet 8.

Here, in the aligning device 1, immediately after being introduced into the interior 6, the cylindrical outer surface 32 of the cylindrical bush 7 makes line contact with the inner surface 4 as shown in FIG. 2, in other words, in both axial directions. When the cylindrical bush 7 is conveyed in the A direction by being attracted by the permanent magnet 8 so that the cylindrical bush 7 is parallel to each other, the magnetic bush is regulated by the inner surface 4 and becomes a stable magnetic attraction state, and the cylindrical bush 7 remains as it is. With the movement of the permanent magnet 8, it is further conveyed in the A direction and discharged from the article discharge section 3,
3, the cylindrical bush 7 is conveyed in the A direction by being attracted by the permanent magnet 8 so that the outer surface 32 of the cylindrical bush 7 makes point contact with the inner surface 4 at two points as shown in FIG. When the cylindrical bush 7 moves in the direction A, the outer surface 32 thereof may come into line contact with the inner surface 4 as shown in FIG. The cylindrical bush 7 is rotationally displaced while being guided by the inner surface 4. In addition, in any case where the cylindrical bush 7 is conveyed inside the inside 6 other than the state shown in FIG. 2, during movement of the cylindrical bush 7 in the A direction,
The cylindrical bush 7 is guided by the inner surface 4 and is rotationally displaced so that the outer surface 32 comes into line contact with the inner surface 4 as shown in FIG. The above facts were also confirmed by experiments. Therefore, the cylindrical bush 7 aligned in a certain direction can be obtained from the article discharge unit 3, and in particular, the cylindrical bush having the same length L and outer diameter R, which were relatively difficult to align in the conventional part feeder. It was found that even No. 7 can be aligned in a certain direction. During the movement, the permanent magnet 8
For example, by rotating about the axis 25,
Furthermore, the cylindrical bush 7 can be easily oriented in a certain direction. In the present example, the cylindrical bush 7 discharged from the article discharge unit 3 has the mounting table 33 arranged with a step between the mounting table 33 and the pipe 5, and the cylindrical bush 7 attracted the cylindrical bush 7 at this portion. Since 8 moves downward, it is rotated 90 ° and mounted on the mounting table 33 as shown in FIG.

In the aligning device 1, the cylindrical bushes 7 are ejected from the article ejecting section 3 after being aligned in a certain direction in the order of being put into the interior 6, so that even if a manufacturing defect occurs in the previous process, it is always possible. At that time, in other words, it becomes easy to determine from which cylindrical bush 7 it originated, and the cylindrical bush 7 to be discarded or reprocessed can be easily specified. Further, in the present aligning device 1, the cylindrical bush 7 can be automatically aligned in a fixed direction inside the pipe 5 regardless of the throwing posture.
The machine in the previous process can be designed without being restricted by the loading method, and the degree of freedom in design is increased. In addition, since it is possible to align the cylindrical bush 7 regardless of its size, it is not necessary to prepare an aligning device corresponding to each.

By the way, the alignment apparatus of the present invention can be used in various steps as shown in FIG. That is, in FIG. 4, the first aligning device 51 aligns the cylindrical bushes 7 molded by the press molding machine 52 and conveys them to the shaping machine 53 in the shaping process, and the second aligning device 54.
Is arranged and conveyed to the drying step 55 while cleaning the cylindrical bush 7 to which the processing oil is attached in the shaping of the shaping machine 53, and the third aligning device 56 dries the cylindrical bush 7 washed in the cleaning step. While aligning and transporting to the next process. The first alignment device 51 includes a cylindrical article receiving portion 2 and an article discharging portion 3
And a non-magnetic pipe 5, a permanent magnet 8 and a moving means 9 composed of a timing belt 15 for moving the permanent magnet 8 relative to the pipe 5. The cylindrical bushes 7 put into the inside 6 of the pipe 5 via the article receiving section 2 are aligned and placed on the mounting table 33 via the article discharging section 3. The cylindrical bush 7 that is sequentially mounted on the mounting table 33 is a pusher (not shown).
And the like and is supplied to the shaping processing machine 53. The second aligning device 54 has a tubular article receiving portion 2 and an article discharging portion 3, and is a non-magnetic pipe 5, a permanent magnet 8, and moves the permanent magnet 8 relative to the pipe 5. And a moving means 9 including a timing belt 15,
The cylindrical bushes 7 put into the inside 6 of the pipe 5 from the shaping machine 53 through the article receiving section 2 are aligned and conveyed toward the article discharging section 3. Then, in the second aligning device 54, the cleaning liquid is supplied to the inside 5 of the pipe 5 that is inclined by the cleaning liquid supply device 64 including the cleaning liquid tank 61, the pump 62, and the supply pipe 63. The cylindrical bushes 7 are supplied in a circulating manner through the port 65, and the cylindrical bushes 7 which are aligned and conveyed in the inside 6 of the pipe 5 are washed with a washing liquid.
The third aligning device 56 includes the article receiving section 2 and the article discharging section 3
And a non-magnetic pipe 5, a permanent magnet 8, and a moving means 9 having a timing belt 15 for moving the permanent magnet 8 relative to the pipe 5, and a cleaned cylindrical bush. 7 through the article receiving portion 2 to the pipe 5
It is received in the inside 6 of the sheet, is aligned, and is conveyed toward the article discharge section 3. In the third aligning device 56, the blower pipe 7
A strong wind is supplied to the inside 6 through the inside 1, and the washed cylindrical bush 7 is aligned and conveyed while being dried in the inside 6. As a result of the dried cylindrical bush 7 coming into contact with the traveling block 72, the cylindrical bush 7 is released from the attraction force of the permanent magnet 8 and discharged from the article discharge unit 3. In this example, the cylindrical bush 7 is transferred from the cleaning process to the drying process by using the second and third aligning devices 5.
The arrival timings of the permanent magnets 4 and 56 are synchronized in a predetermined manner.

As described above, in the aligning device of the present invention, if the hollow article receiver is constituted by the pipe 5 or the like, it can be used for the washing step, the drying step, and also the rust preventing step (not shown). It may be possible to do other work at the same time as the alignment.

[0019]

As described above, according to the present invention, the loaded articles can be accurately aligned, and the loaded articles can be sent out in the order in which they are loaded.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a preferred specific example of the present invention.

FIG. 2 is an operation explanatory diagram of the specific example shown in FIG.

FIG. 3 is an operation explanatory diagram of the specific example shown in FIG.

FIG. 4 is an explanatory diagram of an example in which the specific example shown in FIG. 1 is used in various steps.

[Explanation of symbols]

 1 Article Aligning Device 2 Article Receiving Section 3 Article Discharging Section 4 Inner Surface 5 Pipe 6 Inside 7 Cylindrical Bush 8 Permanent Magnet 9 Moving Means

Claims (7)

[Claims] 1. A non-magnetic hollow article receiver having an article receiving section and an article discharging section and having an inner surface having a curved cross section with a predetermined curvature, and the article receiving section is loaded into the hollow article receiving body. Also, the magnetizing member arranged outside the hollow article receiver so as to magnetically attract the article having the cylindrical outer shape, and the article attracted by the magnetizing member are moved from the article receiving section toward the article discharging section. In order to make the magnetizing member move relative to the hollow article receiver, a device for aligning articles having a cylindrical outer shape is provided. 2. The aligning device according to claim 1, wherein the magnetizing member comprises a permanent magnet. 3. The aligning device according to claim 1, wherein the hollow article receiver comprises a pipe. 4. The moving means comprises an endless belt which is juxtaposed to the hollow article receiver and which carries a magnetizing member, and a drive device for running the endless belt.
The aligning device according to any one of 1 to 3. 5. The aligning device according to claim 1, wherein a plurality of magnetizing members are provided at predetermined intervals along the article moving direction. 6. The aligning device according to claim 1, wherein an inner surface of the hollow article receiver is cylindrical or semi-cylindrical. 7. The aligning device according to claim 1, wherein an inner surface of the hollow article receiver has a parabolic cross section.