JPH048095Y2 - - Google Patents

Description

[Detailed description of the invention] A. Field of industrial application The present invention is an alignment and supply device for magnetic axial parts such as axial type electronic parts having magnetic lead wires. This invention relates to a device that cuts out shaft-shaped parts one by one and sends them out to a stamping process or the like.

B. Prior art In general, diodes, resistors, etc. have two leads 2 (hereinafter simply referred to as leads) that are externally led out from a component body 1 and are also made of ferromagnetic material, as shown in Fig. 1.
There are many axial types that lead out in the opposite direction by 180 degrees, and this type of electronic component 3 requires soldering and cleaning of the lead 2.
After going through processes such as drying, the final part body 1
The product is manufactured by stamping the polarity, product name, etc. on the surface. In the stamping process, it is necessary to align and feed the axial type electronic components 3 (hereinafter referred to as shaft-shaped components) in parallel, and this alignment supply means includes the leads 2 of the shaft-shaped components 3.
In most cases, this kind of material is actually Fe−Ni
A supply device that takes advantage of the fact that it is a magnetic material such as a magnetic material is used.

For example, a conventional example of the above-mentioned feeding device will be explained based on FIGS. 2 and 3. Reference numeral 3 represents the shaft-shaped component, and 4 represents a magnetic box. Magnet Box 4
is a pair of rectangular magnet plates 4a magnetized in the plate thickness direction.
In order to protect at least the inner surface of the magnetic plate 4a, a pair of flat plates 4b made of a non-magnetic material are arranged so that the polarity surfaces of the magnetic plates are substantially parallel and narrow toward the front. Near the inner side between 4a,
They are arranged parallel to each other at an interval slightly wider than the entire length of the shaft-like part 3. Therefore, a substantially parallel magnetic field is formed between the magnet plates 4a, and the parallel magnetic field becomes stronger toward the narrow front end of the magnet plate 4a, creating a difference in magnetic field strength. Reference numeral 5 denotes a cylindrical rotating drum that is partially inserted into the front end of the magnetic box 4. On the cylindrical curved outer circumferential surface of the rotating drum 5, there are grooves along the axial direction of the rotating drum 5 at regular angular intervals. A V-groove 5a is formed, and a magnet 6 is embedded in the bottom of the V-groove 5a. Further, an annular groove 5b (see FIG. 3) is formed in the circumferential direction of the outer peripheral surface of the rotating drum 5. Reference numeral 7 denotes a component removal mechanism, for example, a conveyor. The conveyors 7 are a pair of two conveyors and extend horizontally from both sides of the upper part of the rotating drum 5 to the outside.

An example of the operation of the supply device having the above configuration will be shown below. First, when a large number of shaft-shaped parts 3 are supplied from above the magnet box 4 between the flat plates 4a, 4a in an arbitrary posture, the magnet plate 4 is fed between the flat plates 4b, 4b.
The positions of the respective shaft-like parts 3 are regulated by the substantially parallel magnetic fields formed by a and 4a, and the shaft-like parts 3 are aligned in parallel.

On the other hand, since the magnet plates 4a, 4a are arranged narrower toward the front, the magnet boxes 4
The parallel magnetic field is strong at the front end of the shaft-shaped parts 3, and the shaft-like parts 3 gradually move forward in an aligned state to reach the rotating drum 5. The shaft-shaped parts 3 that have reached the rotating drum 5 are magnetically attracted to the outer peripheral surface of the rotating drum 5 one by one. That is, at the same time that the lead 2 of the shaft-shaped component 3 is attracted to and fitted into the V-groove 5a of the rotating drum 5,
The component body 1 is inserted into the annular groove 5b of the rotating drum 5. Then, by rotating the rotating drum 5 from the bottom to the top in the figure, the shaft-like parts 3 are cut out one by one and rotated together with the rotating drum 5. When they reach the upper part of the drum, they are transferred onto the conveyor 7 for stamping process etc. The pieces are arranged and supplied one by one.

By the way, when the shaft-like part 3 is cut into the rotating drum 5, the shaft-like part 3' is attracted to the V-groove 5a next to the V-groove to which it should originally be attracted, and the two shaft-like parts 3' are Parts 3 and 3' may be mistakenly picked up together. That is, when the shaft-shaped part 3 is in the magnetic box 4, the magnetic lead 2 is weakly magnetized in a strong parallel magnetic field, so if the shaft-shaped part 3 is not in a completely parallel state, the 2 The lead 2 of the book may be attracted to the same V groove 5a first.
As a result, the lead 2 to be sucked later is sucked into the adjacent V-groove 5a by the rotation of the rotary drum 5, and the shaft-like component 3' is sucked in an incorrect posture as shown in FIG.

When the shaft-shaped part 3' in such a bad posture is taken out to the conveyor 7, it may be taken out incorrectly and fall, and if the conveyor 7 is a chain conveyor, it may get caught in the chain and cause a malfunction. . Furthermore, since the two shaft-like parts 3 and 3' are attracted to the same V-groove 5a, counting errors may occur in subsequent steps.

Furthermore, some lead bending may occur within the magnetic box 4 due to factors such as entanglement between parts. Then, as shown in FIG. 4, if the shaft-shaped component 3'' with the bent lead is fed to the rotary drum 5 in that state for the subsequent stamping process, a defective stamp will naturally occur.

C. Purpose of the invention As explained above in the prior art, the purpose of the present invention is to cut out shaft-like parts suspended in a parallel magnetic field and aligned in parallel using a rotating drum, and when supplying the shaft-like parts in alignment to a subsequent process. It is an object of the present invention to provide a supply device that can automatically remove defective shaft-shaped parts due to main suction, lead bending, etc.

D. Structure of the invention The present invention consists of a pair of magnetic plates arranged narrowly opposite each other with their polar surfaces facing approximately parallel to each other. Concave grooves are formed at regular intervals in the direction, and a rotating drum with magnets embedded is partially inserted into the bottom of the concave grooves, and the magnets are supplied into the magnet box and floated in parallel alignment within the parallel magnetic field. The shaft-shaped parts are magnetically adsorbed in grooves on the outer circumferential surface of the rotating drum, cut out one by one to the take-out part, and arranged and supplied to the post-processing process, in which the shaft-like parts are passed from the magnetic box through the rotary drum to the take-out part. The above-mentioned magnet is used to remove shaft-like parts whose leads are magnetically attracted to one of the grooves of the rotary drum or whose supply posture is poor, such as when the leads are bent. It is arranged near the outer peripheral surface of the rotating drum.

E. Example The following is a fifth example of the feeding device according to the present invention.
It is shown and explained in FIG. 6 and FIG. The same reference numerals as those in the apparatus of FIGS. 2 and 3 indicate the same parts, and the explanation thereof will be omitted. The feature of the device according to the present invention compared to conventional devices is that it is provided with a magnet for removing parts with incorrect feeding orientation. In FIGS. 5 and 6, reference numeral 8 indicates a position in which the shaft-shaped component 3 is disposed near the outer peripheral surface of the rotating drum 5 while being transferred from the magnetic box 4 to the conveyor 7 by the rotating drum 5. This is a magnet for removing defective parts.

When the shaft-like parts 3 are fed in an aligned state to the marking process by the above-mentioned feeding device, the large number of shaft-like parts 3 fed to the magnetic box 4 in arbitrary postures is different from the conventional apparatus shown in FIGS. 2 and 3. Similarly, it is transferred to the transfer conveyor 7. Then, when normal shaft-like parts 3 with no lead bending are sucked one by one in a state parallel to the axial direction of the rotating drum 5, the leads 2 of the shaft-like parts 3 are attached to the rotary drum 5. It fits into the V-groove 5a on the outer peripheral surface and is held by suction. Even if the shaft-like part 3 is located below the magnet 8 due to the rotation of the rotating drum 5 as shown in FIG. Since the attraction force by the magnet 6 of the drum 5 is stronger, the shaft-like part 3
is transferred to the conveyor 7 while being attracted to the rotating drum 5.
be transferred to. On the other hand, as shown in FIG. 4, even with the normal shaft-like parts, two shaft-like parts 3' were attracted in a bad posture tilted with respect to the axial direction of the rotating drum 5, and the lead 2 was bent extremely. The lead 2 of the shaft-shaped component 3'' does not completely fit into the V-groove 5a on the outer circumferential surface of the rotary drum 5, and the attraction and holding by the magnet 6 is incomplete.

As shown in FIG. 8, the shaft-like parts 3', 3" which are not fully attracted and held by the magnet 6 are positioned below the magnet 8 by the rotation of the rotating drum 5. Then, the attraction force of the magnet 8 extends to the shaft-shaped parts 3', 3'', and the attraction force of the magnet 8 becomes stronger than the attraction force of the magnet 6 of the rotating drum 5, and these shaft-shaped parts 3' with poor posture are The parts 3'' with bent leads are attracted by the magnet 8 and removed from the rotating drum 5.

Then, the magnet 8 may be moved to scrape off the shaft-shaped parts 3', 3'' attracted thereto by an appropriate means.

F. Effects of the invention According to the invention, in a device that uses a rotary drum to cut out shaft-like parts that are aligned in parallel while floating in a parallel magnetic field and then align and supply them to a subsequent process, a magnet that attracts shaft-like parts that are in a bad feeding orientation is used. By installing this, shaft-like parts with poor supply orientation can be removed from the rotating drum, thereby preventing equipment failures, counting errors, etc. in subsequent processes caused by these defective shaft-like parts, as well as problems in the stamping process. Bad markings, etc. are eliminated, and the operating rate of equipment can be improved.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an example of a shaft-shaped component, Fig. 2 is a partial sectional view showing a specific example of a conventional feeding device, Fig. 3 is a plan view of Fig. 2, and Fig. 4 is the same as Fig. 3. FIG. 5 is a cross-sectional view showing an embodiment of the apparatus for aligning and feeding shaft-shaped parts according to the present invention; FIG. 6 is a partial enlarged plan view of the rotating drum shown in FIG. Enlarged side views, Figures 7 and 8 are Y in Figure 5.
It is a partially enlarged sectional view taken along the -Y line. 3... Shaft-shaped part, 3', 3''... Part with defective feeding posture, 4... Magnetic box, 4a... Magnet plate, 5... Rotating drum, 5a... Concave groove, 6... Magnet, 7 ...Ejecting section, 8...Magnet.

Claims (1)

[Claims for Utility Model Registration] At the front end of a magnetic box, a pair of magnetic plates with different polarities facing forward and narrowly facing each other with different polarities are arranged. A shaft-shaped component in which concave grooves are formed at regular intervals in the direction, and a rotating drum with a magnet embedded in the bottom of the concave groove is inserted, and is supplied into the magnet box and floats in parallel alignment within the parallel magnetic field. is magnetically adsorbed on the outer circumferential surface of the rotating drum and cut out one by one into the take-out part. A magnet is installed near the outer circumferential surface of the rotating drum to remove the leads of two shaft-like parts that are magnetically attracted to the two grooves or the shaft-like parts that have a bad feeding posture such as bent leads. Characteristic alignment and feeding device for shaft-shaped parts.