JPS5878911A - Parts feeder - Google Patents

Abstract

PURPOSE:To provide an oscillation-type parts feeder which can supply minute parts in line by providing an adsorption disc to adsorb stored parts upward and transfer same onto an aligning track. CONSTITUTION:Parts are put in a storing portion 1 and rotated and moved toward the outer periphery by centrifugal force produced by rotation of the storing portion 1. When the parts are moved to a position below an adsorber 8, that is, an adsorbing position 10 by rotation, the parts are sucked by the adsorber 8 to be adsorbed to the lower surface of an adsorbing disc 6, and carried above an aligning track 3 by rotation of the adsorbing disc 6. When the parts arrive below a separator 9, that is, at a separating position, suction is cancelled so that the parts drop upon the aligning track 3 to be carried by rotation of the aligning track 3. During such operations, the parts other than the parts of required posture are fed back to the storing portion 1 by an attachment fixed to the outside wall by utilizing a head, and only the parts of required posture are discharged from an outlet.

Description

[Detailed description of the invention] The present invention relates to arranging and supplying articles.

Conventionally used vibrating parts feeders move objects by reciprocating vibrations, which not only causes scratches and damage to shiny objects such as plastics, but also
Because it relies on the resonance of the vibration system formed by the bowl, spring, and articles, it was not possible to feed articles at high speed. To improve these shortcomings, it is transferred at the same height to an alignment track whose outer circumference tilts and rotates due to the rotation of the disk,
Using attachments installed on the outer wall, items that are not in the desired position are dropped using height differences and returned to the disk, and only items that are in the desired position are taken out to the outside. Because of the gap between the plate and the curved fall-off prevention wall at the bottom of the alignment track on the outer periphery, it was impossible to feed minute parts.

In addition, objects stored in the center are moved to the outer periphery by the centrifugal force caused by the rotation of the disk and moved to the alignment track, but for objects with different friction on the front and back sides or objects with extremely large friction, the disk moves at high speed. Only the rotation moves to the alignment track, and only the position with high friction remains on the disc, or it forms a lump and collides with the outer wall to prevent it from falling off, which has the disadvantage of hindering smooth supply. .

The present invention integrates the recess for storing parts and the alignment track on its outer periphery to eliminate gaps, sucks the stored parts upward and transfers them onto the alignment track, thereby making it possible to supply minute parts in an aligned manner. This makes it possible to supply parts with different friction on the front and back sides, such as those with rubber pasted on only one side.

The present invention will be explained by examples. FIG. 1 is a view of the present invention from above, and FIG. 2 is a sectional view taken along line AA in FIG. A drive shaft 5 is attached to the center of a circular reservoir 1 that stores supplied parts, and the reservoir 1 is rotated via the drive shaft 5 by a rotation source (motor, pneumatic-hydraulic motor) not shown. The storage part 1 is designed to prevent the stored parts to be supplied to the outside from falling off.
A fall prevention wall 2 is provided in an annular shape on the outer periphery of the fall prevention wall 2.
A planar annular alignment track 3 is provided at the upper end of the drive shaft 5 in a plane perpendicular to the drive shaft 5, and is integrated with the fall prevention wall 2, the reservoir 1, and the drive shaft 5. An outer wall 4 is provided on the outside of the alignment track 3 to which an attachment for alignment and an outlet (none of which are shown) are attached, and the outer wall 4 is attached and fixed to a pedestal (not shown).

A suction disk 6 having a diameter smaller than ten of the outer diameter of the alignment track 3 is rotated by a motor (not shown) via a rotating shaft 7, facing above the storage portion 1 and the alignment track 3. On the upper side of the adsorption disk 6, an adsorption device 8 is installed above a part of the storage section 1.
is fixed to the outer wall 4 by a member not shown, and a detacher 9 is fixed to the outer wall 4 above the suction disk 6 and facing the alignment track 3 by a member not shown.

The operation will be explained with reference to FIGS. 1 and 2.

The parts to be supplied are put into the storage section 1, and rotated while moving toward the outer periphery due to centrifugal force due to the rotation of the storage section 1. The parts to be supplied are rotated to the lower part of the suction device 8, that is, the suction position 10.
When it reaches the point, the parts to be supplied are sucked by the suction device 8, and
The supplied parts are attracted to the lower surface of the suction disk 6, are carried above the alignment track 3 by the rotation of the suction disk 6, and when they reach the bottom of the separator 9, that is, the separation position 11, the suction is cut off and the supplied parts are aligned. Components that fall onto the track 3 and are carried by the rotation of the alignment track 3 are returned to the storage section 1 using the head difference by an attachment attached to the outer wall 4, and are returned to the storage section 1 using the head difference. Only the supplied parts are discharged from the outlet.

In FIG. 3, the suction disk 6 is composed of a non-suction disk 12 that does not have a suction function and a suction ring 13 that has a suction function on the outer periphery of the non-suction disk 12. When the parts are attracted to the suction disk, they are attracted only to the suction ring 13, and by setting the width of the suction ring 13 according to the size of the parts to be attracted, the parts to be attracted are attracted in a line, so that the alignment track When the parts to be supplied are released on the alignment track 3, the parts to be supplied are fed in a line onto the alignment track 3. therefore,
There is no need for an attachment to be attached to the outer wall 4 for aligning the supplied parts on the alignment track 3.

Although the integrated alignment track 3 and the motor connected to the drive shaft 5 that rotates the storage section 1 and the motor connected to the rotation shaft 7 that rotates the suction disk 6 have been described as being separate, the rotation shaft 7 and the drive shaft 5 by a mechanical element such as a gear, a pulley, or a belt, and a single motor is used, this does not change the spirit of the present invention.

FIG. 4 shows an example of vacuum suction. Figure 5 is the 4th
FIG. The suction disk 6 is composed of a non-suction disk 12 and a suction ring 13. The suction ring 13 is made of a breathable material such as sintered metal or continuous sponge rubber, and the non-adsorption disc 12 is a disc made of metal or plastic. It is optional to provide appropriate holes in order to reduce the weight of this disc.

``The static electricity 15 is formed in the shape of a part of a fan-shaped ring concave downward, and is provided above the storage section 1 in a semicircular ring shape from near the center of the storage section 1 toward the alignment track 3.

The lower opening of the static electricity 15 is the non-adsorption disk 12 and the adsorption ring 131.
In contact with ζ, the suction disk 6 can be slidably rotated into the opening below the static electricity 15 for suction. Intake pipe 1 installed in static I5
4 is connected to a vacuum source (not shown). The parts to be supplied stored on the storage section 1 are transported to the suction position 10 below the static electricity 15 by the rotation of the storage section 1. Static electricity 15 is intake pipe 14
Since the air flows from the suction position 10 below the suction device 8 through the suction ring 13 to the static electricity 15, the parts to be supplied on the reservoir 1 that have reached the suction position 13, and by the rotation of the suction disk 6, the parts to be supplied are carried above the alignment track 3 while being attracted to the bottom surface of the suction ring 13. Therefore, suction to the suction ring 13 stops at the detachment position 11, and the supplied parts fall onto the alignment track 3. When the supplied parts are difficult to separate from the suction ring 13, it does not change the spirit of the present invention to accelerate the separation by blowing air from above the suction ring 13 above the alignment track 3.

Fig. 6 is a plan view of an embodiment in which electrostatic adsorption is performed;
The figure shows a cross section. Supplied parts such as ceramics and plastics are attracted by static electricity. The reservoir 1'' has a conical shape with a concave center 5 and is provided so that the reservoir 1 and the suction disk 6 are almost parallel.The suction disk rotated by the rotating shaft 7 is made of an insulating material. A suction electrode 16 is slidably attached to the outer wall via an insulator above the suction disk.

The adsorption electrode 16 is connected to the non-grounded side of a high voltage DC power supply (not shown). As shown in FIG. 6, the suction electrode 16 is composed of a semicircular metal plate from the suction position 10 to the upper part of the alignment track.The suction electrode 16 is composed of a semicircular metal plate from the pickup position 11 to the inner circumference of the alignment track 3. configured.

A detachment electrode 17 is located above the attraction disk 6 and is fixed to the outer wall with a member not shown. - electrode 17 is connected to the ground side power source of the high voltage DC power source. It does not change the spirit of the present invention to apply a potential having a sign opposite to that of the attracting electrode to the detachment electric current to facilitate detachment of the attracted component. The drive shaft of the reservoir 1 is also grounded via a bearing (not shown). The supplied parts placed on the reservoir 1 are moved to the suction position 10 by the rotation of the reservoir 1 . At the suction position, an electric charge is induced in the supplied parts due to the potential gradient between the suction electrode 16 and the reservoir 1, and the parts are suctioned onto the suction disk 6.
As a result of the rotation, the charges induced by the grounded detachment electrode 17, which are carried to the detachment position 11, also disappear and fall onto the alignment track.

FIG. 81 shows an embodiment in which an appropriate number of suction tools are attached to the suction disk 6, and FIG. 9 is a sectional view thereof. A suitable number of suction tools 20, 21, 22, 23, 24, 25 are attached to the inside of the outer periphery of the suction disk 6, and a distributor 19 is attached to the rotating shaft 7. The trapping tools 20, . . . 25 are realized by using electromagnets or vacuum pads. A rotatably mounted distributor 19 is attached to the rotating shaft 7.

The suction tools 20, . . . 25 are vacuum pads when the parts to be supplied are attracted by vacuum, and electromagnets are used when the parts to be supplied are attracted by magnetic force. Distributor 19
is a valve for distributing when vacuum suction is performed, and the vacuum pad is piped to the distributing valve, and the distributing valve is connected to a vacuum source (not shown). The area from the vacuum pad at position 25 to position 21 through position 23 is connected to the vacuum source via a distribution valve 19, and from position 20 through position 24 to position 25 O,
The area between the two positions is opened to the atmosphere via the distribution valve 19.

The 1-distribution valve 19 is attached to the outer wall 4 using a member (not shown) so that it can be rotated by the drive shaft 7.

Due to the rotation of the storage section 1, the parts to be supplied reach the lower part of the suction disk 6 equipped with a vacuum butt, and the vacuum butt reaches the distributing valve 19.
Since the suction is performed by the vacuum pad, the parts to be supplied are attracted by the vacuum pad, and the alignment track 3 is
When the vacuum pad passes the position 20, the vacuum pad is opened to the atmosphere, and the parts to be supplied are moved onto the alignment track 3. When the vacuum pad is vented to the atmosphere and suction is stopped, instead of venting to the atmosphere to facilitate withdrawal.
Blowing pressurized air into the vacuum pad does not change the spirit of the invention.

The electromagnet is attached to the suction tools 20, 21, 22, and 20 in FIGS. 8 and 9.
When used for 23, 24, and 25, the distributor 19 is realized by a changeover switch that acts to energize the electromagnet between the positions 25, 23, and 21. The parts to be supplied placed on top of the storage section 1 are rotated by the drive shaft 5 and moved below the attraction disk 6, where they are attracted to the attraction disk 6 by an excited electromagnet and transported onto the alignment track 3. , 20, 24, and 25, the electromagnet is de-energized, so the supplied parts fall onto the alignment track 3, form a -line, rotate together with the alignment track 3, and are aligned. be done. Providing a wiper for scraping the supplied parts off the suction disk 6 to help the supplied parts fall onto the alignment track 3 does not change the gist of the present invention.

Moreover, the distributor 19 realized by a change-over valve, a change-over switch, etc. is not attached to the rotating shaft 7, but is fixed at the position of the suction device 8 shown in FIGS. Even if an electric circuit and a pneumatic circuit are formed to the suction tools 20, . . . 25, the gist of the present invention will not be changed.

With the present invention, it is now possible to align the parts to be supplied by lifting them from the stored bowl and transferring them to the alignment truck, making it possible to align and automatically feed minute electronic parts and precision mechanical parts at high speed. This will greatly contribute to the automation of production equipment, including speeding up automatic assembly machines.

[Brief explanation of the drawing]

Fig. 1: A plan view of the present invention seen from above Fig. 2: An explanatory diagram showing the A-A cross section of Fig. 1 Fig. 3: An explanatory diagram of a suction disk with a suction ring Fig. 4: By vacuum suction Figure 6: An explanatory diagram of the embodiment seen from above using static electricity. Figure 7: A sectional view taken along line A-A in Figure 6. Figure 8: A suction disc with a suction device. Explanatory diagram of the embodiment seen from above Figure 9: Explanatory diagram of cross section A-A in Figure 8 1: Reservoir section
2: Fall prevention wall 3: Alignment track 4: Outer wall 5: Drive shaft 6: Adsorption disk 7: Rotating shaft 8: Adsorption device 9
: Detachment device 10: Adsorption position 11: Detachment position 12: Non-adsorption disc

Claims (1)

[Claims] (1) An annular alignment track, a circular storage part integrated with the alignment track, a mechanism for rotating the storage part, a part of the alignment track, and a part of the storage part facing each other. In a parts feeder consisting of a rotating suction disk, the parts to be fed are carried below the suction disk by the rotation of the storage section, and are attracted to the suction disk, lifted up above the alignment track, and dropped onto the alignment track. (2) A rotating disc-shaped reservoir and a drop-off prevention device that is integrally provided on the outer periphery of the reservoir so as to be concave upwards. a wall, an annular alignment track integrally provided on the outer periphery of the upper end of the fall prevention wall, a suction disk that rotates in opposition to a portion of the alignment track and a portion of the storage portion; a suction device disposed above the suction disk and above the storage portion, the suction device adsorbing the parts to be supplied from the storage portion via the suction disk;
A parts feeder (3) characterized by having a suction disk that suctions the parts to be supplied and transfers them to the alignment track. (4) A rotating disk-shaped storage part, and a rotating disc-shaped storage part, and a part supplying machine comprising a suction ring that can pick up the parts, and a disc in the center that does not do suction. A drop-off prevention wall that is integrally provided so as to be concave upward, an annular alignment track that is integrally provided on the outer periphery of the upper end of the fall-off prevention wall, and a portion of the alignment track and a portion of the storage portion that are opposed to each other above. It consists of a suction disk that rotates, one or more suction tools provided on the outer periphery of the suction disk, and a distributor, and it sucks the parts to be supplied on the storage part by controlling the distributor. A parts supply machine characterized by having a suction plate having one or more suction devices for transferring onto an alignment track.