JPH031211B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a spiral vibrating component feeder.

In general, a spiral type vibrating parts feeder is also called a parts feeder, and is equipped with a spiral track, and is widely used to transfer parts on the track by applying torsional vibration force to feed the parts one by one to the next process. . Furthermore, in most cases, parts are fed in a desired posture, and for this purpose parts feeders are equipped with various parts feeding means. However, some parts are very easy to tangle with each other; for example, the filaments used in light bulbs are easily tangled with each other, but a large amount of such parts were put into the center of a ball with a spiral track. In most cases, they are intertwined. Therefore, in order to supply one filament in a desired posture, the filaments must first be disentangled. For this purpose, it is known that auxiliary means such as blowing air are added, but in general, a large vibration angle and a large vibration width are desirable for loosening entanglements. However, a small vibration angle is generally desirable for conveying parts, and on the other hand, in order to increase the transport speed of parts, the amplitude must be increased depending on the vibration frequency and vibration angle. Therefore, it is extremely difficult to determine the optimum frequency, vibration angle, amplitude, etc. for a certain part.

The present invention was made in view of the above-mentioned problems, and it is an object of the present invention to provide a spiral type vibrating parts feeder that can easily set optimal vibration conditions for arbitrary parts, sorting means, and actions. This purpose, according to the invention, includes a first vibrating section having a first helical track, a first vibrating force generating section that applies torsional vibrating force to the first vibrating section, and an outer periphery of the first vibrating section. The wall portion is disposed on the radially outer side with a space smaller than the parts to be conveyed substantially concentrically, and extends substantially concentrically with the first helical track;
a second vibrating section provided with a second helical track provided with a parts handling means; and a second vibrating section that applies torsional vibration force to the second vibrating section and is independent of the first vibrating force generating section and vibrates separately from the first vibrating force generating section. a second vibration force capable of generating different vibration forces in at least one of width, frequency, and vibration angle;
a vibrating force generating section, and a notch formed in the outer peripheral wall corresponding to the terminal end of the first helical track to disentangle parts that are easily entangled in the first helical track; This is achieved by a spiral type vibrating component feeder, characterized in that the component is guided into the second spiral track through the notch and beyond the gap.

Alternatively, a vibratory elevator is provided with a first torsional vibration drive section that winds a track spirally around a vertical cylindrical body and generates a torsional vibration force around the axis of the vertical cylindrical body; The track of the vibrating elevator is arranged radially outward from the outer circumferential wall of the upper end or lower end of the track and is spaced approximately concentrically from the outer circumferential wall of the vibration elevator. a helical track that extends substantially concentrically and is provided with a parts handling means, and a second torsion that applies a torsional vibration force to the helical track and that is controllable independently of the first torsional vibration drive section. a vibrating parts feeder equipped with a vibrating drive section, the parts are passed through a notch formed in the peripheral wall corresponding to the terminal end of the track of the vibratory elevator, and beyond the gap to the track of the vibrating parts feeder. This is achieved by a spiral type vibrating parts feeder, which is characterized in that it is guided inward.

The details of the present invention will be explained below based on the illustrated embodiments.

1 to 6 show a first embodiment of the present invention. In the figures, the spiral type vibrating parts feeder is indicated as a whole by 1, and the vibrating part is a ball with a shape similar to the ball of a conventional parts feeder. 1 vibrating part 2, and a substantially ring-shaped second vibrating part 3 disposed concentrically with this outer peripheral wall part 6 with a gap S therebetween.
The size of the gap S is smaller than the size of the part m to be sorted, as clearly shown in FIG. First vibrating part 2
A helical track 4 is formed on the inner circumferential wall surface of the vibrating section 3, and is also wound around the second vibrating section 3 in the same direction as the track 4, forming a helical track 5 that is approximately one turn around. These tracks 4 and 5 are the second
As shown in FIGS. 5 and 6, it is slanted slightly downward radially outward. First vibrating part 2
A notch 6a is formed in the outer circumferential wall 6 of the vibrating part 3, and the parts are guided into the track 5 of the second vibrating part 3 through this notch 6a. It is assumed that a component transporting means or a component posture correcting means A is disposed on or in close proximity to the track 5 of the second vibrating section 3. FIG. 3 shows this abstractly and virtually.

As shown in FIG. 2, a movable core 7 is fixed to the bottom of the first inner vibrating section 2, and is connected to a lower base block 8 by a leaf spring 9. The leaf springs 9 are arranged at equal angular intervals on the base block 8, as shown in FIG.
The lower end portion is fixed to a mounting slope 8a formed on the outer periphery of the base block 8 (see FIGS. 2 and 4) with bolts.
As a result, the leaf spring 9 is arranged to be inclined at a predetermined angle α. An electromagnet 10 is fixed on the base block 8 facing the movable core 7, and has a coil 11 wound thereon. The base block 8 is supported on a base plate 13 by a vibration-isolating coil spring 12.

Four plate spring mounting blocks 15 are fixed at equal angular intervals to the bottom of the ring-shaped second vibrating part 3, and each of these is coupled to a ring-shaped base block 19 by a plate spring 20 (see FIG. 1). reference). Fourth
As shown in the figure, mounting slopes 19a are formed on the outer periphery of the base lock 19 at equal angular intervals, the lower end of the leaf spring 20 is fixed to these with bolts, and the upper end is attached to the slope of the leaf spring mounting block 15. Fixed with bolts. As a result, the leaf spring 20
is inclined at a predetermined angle β. According to this embodiment, the inclination angle α of the leaf spring 9 on the first vibrating part 2 side
(see FIG. 2) is larger than the inclination angle β (see FIG. 1) of the leaf spring 20 on the second vibrating section 3 side.

As shown in FIGS. 1 and 4, two movable cores 1 are further provided at the bottom of the second vibrating section 3, facing each other in the radial direction.
4 are fixed, and an electromagnet 16 is mounted on the base block 19 via a mounting part 18 so as to face them.
is fixed. Each electromagnet 16 has a coil 17 wound around it. As shown in FIG. 4, the ring-shaped base block 19 is arranged with a gap S between it and the inner base block 8, and is supported on the base plate 13 by a vibration-isolating coil spring 21.

As described above, each vibrating force generating part for the first vibrating part 2 and the second vibrating part 3 is constructed, and the whole is covered with a cylindrical cover 22. In this embodiment, the electromagnet 10 of the vibration force generating section on the first vibrating section 2 side
The coil 11 is supplied with half-wave rectified alternating current from commercial power (50 Hz). This generates a 50Hz vibration force. Further, the alternating current of the same commercial power source (50 Hz) is directly supplied to the coil 17 of the electromagnet 16 of the vibration force generating section on the second vibrating section 3 side. This generates a 100Hz vibration force.

The first embodiment of the present invention is constructed as described above, and its operation will be explained next.

When the coils 11 and 17 of the electromagnets 10 and 16 are energized as described above, a torsional vibration force is generated, and the first vibrating part 2 moves in the direction shown by the dotted arrow a in FIG. 1, that is, in the longitudinal direction of the leaf spring 9. It vibrates torsionally in a direction (vibration angle α) that is almost perpendicular to the direction of vibration. Further, the second vibrating portion 3 torsionally vibrates in the direction shown by arrow b, that is, in a direction substantially perpendicular to the longitudinal direction of the leaf spring 20 (vibration plane β). Although not shown in FIG. 3, it is assumed that a large number of parts m are inserted into the ball-shaped first vibrating part 2. It is also assumed that parts m are parts that can be easily entangled with each other without specifying their shapes. Since the vibration angle α and amplitude (preset) of the first vibrating section 2 are sufficiently large, the mutual entanglement between the parts m is sufficiently loosened by the large jumping motion. As shown in FIG. 6, the part m that has ascended the track 4 of the first vibrating section 2 and reached the notch 6a is guided by the notch 6a, crosses the gap S, and reaches the track 5 of the second vibrating section 3. guided inward. It is assumed that the amplitude of the second vibrating section 3 is set to be optimal for the sorting action of the parts sorting means A. Also, the vibration angle β is sufficiently small and the vibration frequency is 100.
Hz, so part m is stably and efficiently transported by means A.
It receives a redirecting action. The parts m subjected to the shuffling action are supplied from the discharge end 5a of the track 5 to the next process.

Next, a spiral vibrating component feeder according to a second embodiment of the present invention will be described with reference to FIGS. 7 to 9.

In the vibrating parts feeder of this embodiment, a so-called vibrating elevator 30 is used as the first vibrating part,
A parts feeder 31 having a ring-shaped second vibrating section 46 is disposed around its upper end.

In the vibratory elevator 30, a track 3 is arranged in a spiral manner around a long vertical cylinder 32, as is known in the art.
3 is wound around the ball 34, and a ball 34 that accommodates a large number of parts is integrally fixed to the lower end of the ball 34. A base plate 35 is fixed to the bottom of the ball 34, and a pair of motor mounting plates 36, 37 are further fixed to the center of the bottom surface of the base plate 35, which are connected to a connecting plate 38,
Reinforced by 39. Motor mounting plate 3
A pair of vibration electric motors 40 and 41 are fixed to 6 and 37 so that their rotating shafts are tilted at predetermined angles in different directions. A substantially semicircular unbalanced weight W is fixed to both ends of each rotating shaft. The base plate 35 is supported on a base 42 by four coils 43.

The vibration elevator 30 is constructed as described above, and its upper end passes through the through hole 45 of the base block 44 of the parts feeder 31, and a spiral track is formed concentrically around the through hole 45 as shown in FIG. A second vibrating section 46 having 48 is provided.
The track 48 is formed approximately all the way around, and is slanted slightly downward in the radial direction as in the first embodiment. It is assumed that a parts sorting means A is provided on the track 48 or in the vicinity thereof. A sufficiently small gap S is provided between the vibrating elevator 30 and the ring-shaped second vibrating part 46.

The second vibrating part 46 is made of the leaf spring 4 as in the first embodiment.
It is connected to the base block 44 by 7, has a similar electromagnet and a movable core (not shown), and receives torsional vibration force.

In general, vibratory elevators are widely used not only to transport parts and various materials upward through a certain height, but also to heat, cool, or dry them during this process. For this reason, the floor of trough 33 is
They have a multilayered structure to allow some type of refrigerant or heating medium to flow through them, or they have a closed structure to allow these media to flow through them. Although a configuration for this purpose is not particularly illustrated in this embodiment, it is assumed that the cooling action is applied during the stroke. Alternatively, it may be simply air-cooled by air in the atmosphere.

The second embodiment of the present invention is constructed as described above, and its operation will be explained next.

When the pair of vibrating electric motors 40 and 41 are driven, centrifugal force is generated by the rotation of the unbalanced weight W, and this applies a torsional vibrating force to the ball 34 of the vibrating elevator 30, that is, the track 33 in the direction shown by the arrow d. A large amount of the heated part m is in the ball 3
It will be introduced within 4. The part m rises on the track 33, and since this journey is sufficiently long, it is sufficiently cooled during this time and reaches the upper end of the track 33. The parts m are guided from the discharge end 33a of the track 33 across the gap S to the track 48 of the parts feeder 31, as shown in FIG. When the electromagnet (not shown) is energized, the second vibrating section 46 also performs torsional vibration in the direction shown by the arrow e, and the component m moves along the track 48.
The parts are transported along the same direction, and are fed to the next process one by one from the discharge end 48a under the sorting action by the parts sorting means A in a desired attitude.

The torsional vibration drive unit of the vibration elevator of this embodiment consists of a pair of vibration motors 40 and 41 as described above, but the vibration motor is generally an induction motor, and if it is a four-pole induction motor, it is powered by a commercial power supply. When connected, it rotates at a speed of approximately 1450 PRM. As a result, an excitation force is obtained by the centrifugal force of the unbalanced weight built into these, and the torsional amplitude of the track 33 due to this is approximately 1 mm in the case of an electromagnetic drive unit.
This vibration is extremely large at about 30 mm compared to the 30 mm, and due to such vibrations, the parts on the track 33 are subjected to a transfer force due to large vibrations, are reversed and stirred, and are thereby subjected to cooling or heating effects during this transfer process. Since it can receive this effect uniformly and is introduced into the track of the second vibrating section 46 after a long stroke, it can be uniformly and sufficiently heated or cooled and supplied to the second vibrating section 46. I can do it.

FIG. 10 shows a third embodiment of the invention. This embodiment is composed of a vibration elevator 50 and a parts feeder 51 like the second embodiment, but unlike the second embodiment, the vibration elevator 50 is of a suspended type, and the parts feeder 51 is disposed around the lower end of the vibration elevator 50. be done.

In the vibratory elevator 50, like the vibratory elevator 30 of the second embodiment, a track 53 is spirally wound around a vertical cylinder 52, and a ball 54 is integrated at the upper end to accommodate a large number of parts. is fixed. A motor mounting plate 55 is also fixed to the ball 54, and a pair of vibration motors 56 are fixed to this in the same arrangement as in the second embodiment. Further, a pair of spring receivers 57, 58 are engaged with the motor mounting plate 55, and coil springs 59, 60 are engaged with the motor mounting plate 55.
is supported. The spring receivers 57 and 58 are suspended from suspension devices 61 and 62 fixed to a part of the building.

In the lower parts feeder 51, the lower end of the vibration elevator 50 faces a central through hole of a ball 63 serving as a ring-shaped second vibration section, and a spiral track 64 is formed on the inner peripheral wall. The ball 63 is connected to a lower base block 65 by a leaf spring 66. A pair of movable cores 67 are arranged at the bottom of the ball 63 in the same manner as in the first embodiment.
are fixed to the base block 65, and an electromagnet 69 is fixed to the base block 65 via a mounting member 68 in opposition to these. The entire parts feeder 51 is made of anti-vibration rubber 70
is supported on the ground by

When the pair of vibrating motors 56 are driven, the parts move down the track 53 from the ball 54, and are guided from the discharge end of the track 53 into the track 64 of the ball 63 of the parts feeder 51. The operation is exactly the same as the second embodiment except that the parts are transferred downward.

11 to 14 show a fourth embodiment of the present invention. This embodiment differs from the first embodiment in the configuration of the second vibrating section, but is otherwise completely the same, so corresponding parts are given the same reference numerals and detailed explanation thereof will be omitted.

In this embodiment, a spiral track 81 having approximately two turns is formed on the inner wall of the ring-shaped second vibrating section 80, as shown in FIG. Also, a specific parts handling means 82 is arranged on the track 81. As shown in FIG. 13, in the parts sorting means 82, a step-like arcuate notch 83 is formed in a part of the track 81. As shown in FIG. As a result, track 8
1 is a narrow path as shown by 81a. The width of this narrow passage 81a is slightly smaller than the width of component m. Further, an upper wall forming member 84 is attached to this portion, and the size of the gap between this upper wall and the narrow passage 81a is slightly larger than the thickness of the component m.

When the coils of the respective electromagnets are energized, the first vibrating section 2 and the second vibrating section 80 perform torsional vibration as in the first embodiment. 80 into a track 81. As shown in FIG. 14, when multiple rows reach the parts sorting means 82, all the parts m in the radially inner row fall downward, and only the parts m in the outermost row It moves towards the side wall and continues to move forward. Further, when the parts m overlap, the overlap is removed by the upper wall forming member 84. In this case, since the peripheral wall surface of the upper wall forming part 84 is formed in an arc shape, the overlapping part m is guided by this and falls smoothly into the notch 83.

The parts m are sorted into single rows and single layers by the sorting means 82, and generally, in such sorting, the smaller the vibration angle, the better the sorting efficiency. Therefore, it is desirable that the inclination angle β of the leaf spring 20 on the second vibrating section 80 side including the adjusting means 82 is small. On the other hand, since the transport speed of part m due to vibration depends on the vibration angle,
The inclination angle α of the leaf spring 9 may be selected so as to supply the second vibrating portion 80 at a high supply speed.

Although each embodiment of the present invention has been described above,
Of course, the present invention is not limited to these, and various modifications can be made based on the technical idea of the present invention.

For example, in the first and fourth embodiments, electromagnets are used for both vibrating force generating parts, but a pair of vibrating electric motors may be used for one or both of them.
Alternatively, other driving sources may be applied.

Further, in the second and third embodiments, a pair of vibrating electric motors were used as the driving source of the vibrating elevator, but an electromagnet may be used instead.

Further, in the embodiment shown in FIGS. 7 to 10, the process of heating or cooling the parts in the vibrating elevator 30 or 50 with its long spiral track 32 or 53 is not limited to this, but it is possible to simply heat or cool the parts from below or from above. It may also be used as a means for transporting parts to a vibrating parts feeder for sorting and supplying parts to a device at a certain height.

As described above, according to the spiral type vibrating parts feeder of the present invention, the first vibrating part and the second vibrating part can independently perform torsional vibration, so that desired effects on various parts can be obtained. The vibration conditions can be optimally selected for each vibrating section, and the overall component feeding efficiency, that is, the feeding efficiency of the components fed from the second helical track of the second vibrating section in a desired state can be improved. This can be further improved than before.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of the cover of a spiral vibrating component feeder according to a first embodiment of the present invention, and FIG. 2 is a partially cutaway side view of the cover of the same feeder. , Figure 3 is a plan view of the feeder,
Figure 4 is a sectional view in the - line direction in Figure 1, Figure 5 is a sectional view in the - line direction in Figure 3, and Figure 6 is a sectional view in the - line direction in Figure 3.
The figures are a cross-sectional view in the - line direction in FIG. 7 is a sectional view in the - line direction, FIG. 10 is a partially sectional side view of a spiral type vibrating component feeder according to a third embodiment of the present invention, and FIG. 11 is a helical type vibrating component supplying machine according to a fourth embodiment of the present invention. FIG. 12 is a plan view of the feeder, FIG. 13 is an enlarged sectional view in the − direction of FIG. 12, and FIG. 14 is a part of FIG. 12. FIG. In the figure, 1... spiral type vibrating component feeder, 2... first vibrating part, 3... second vibrating part, 4,
5... Spiral track, 7, 14... Movable core, 9, 20... Leaf spring, 10, 16... Electromagnet, 11, 17... Coil, 30, 50... Vibration elevator, 31, 51... ...Parts feeder, 3
3, 53...Spiral track, 40, 41, 5
6... Vibration electric motor, 46, 63... Second vibrating section,
47, 66... leaf spring, 48, 64... spiral track, 69... electromagnet.

Claims (1)

[Claims] 1. A first vibrating section having a first helical track, and a first vibrating section that applies torsional vibration force to the first vibrating section.
The vibrating force generating section and the outer circumferential wall of the first vibrating section are arranged radially outward with a space smaller than the parts to be conveyed substantially concentrically, and a second vibrating section including a second helical track extending substantially concentrically with the second helical track and provided with a component feeding means; It consists of a second vibration force generation section that is independent of the vibration force generation section and is capable of generating a vibration force that is different from this in at least one of the amplitude, frequency, and vibration angle, and the second vibration force generation section is capable of generating a vibration force that is different from the second vibration force generation section in at least one of the amplitude, frequency, and vibration angle, and passing through a notch formed in the outer peripheral wall corresponding to the terminal end of the first spiral track in an untangled state;
A spiral type vibrating parts feeder, characterized in that the parts are guided into the second spiral track beyond the gap. 2. A vibratory elevator comprising a first torsional vibration drive section that winds a track in a helical manner around a vertical cylindrical body and generates a torsional vibration force around the axis of the vertical cylindrical body; It is disposed radially outward from the outer circumferential wall of the upper end or lower end of the track, with a space smaller than the parts to be conveyed substantially concentrically, and is connected to the track of the vibration elevator. a helical track extending substantially concentrically and provided with a parts handling means; and a second torsional vibration that applies a torsional vibration force to the helical track and is controllable independently of the first torsional vibration drive section. a vibrating parts feeder equipped with a drive section, the parts are passed through a notch formed in the outer peripheral wall corresponding to the terminal end of the track of the vibratory elevator, and beyond the gap into the track of the vibrating parts feeder. A spiral type vibrating parts feeder characterized by being adapted to guide. 3. The helical vibrating component feeder according to claim 2, wherein the first torsional vibration drive section comprises a pair of vibrating motors, and the track of the vibrating elevator is provided with heating means or cooling means.