JP2504933Y2 - Vibration parts feeder - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention transfers a component by vibration, and supplies a component to the next process in a predetermined posture by the component feeding means during the transfer. Regarding the device.

[Conventional technology and its problems]

Parts are fed from a vibrating parts storage hopper arranged on the upstream side having multi-row linear tracks, each of which is provided with parts feeding means, and the parts feeding means makes a predetermined posture to carry out the next step. A vibrating component feeding apparatus having a vibrating feeder adapted to feed one from the above-mentioned multi-row truck is well known. However, in this multi-row vibrating feeder, the parts that were not fed or the parts that were supplied from the vibrating parts storage hopper on the upstream side in the state of overflow are dropped downward, but by some part receiving means, For example, by storing at the downstream end of the trough, the worker periodically stops the vibrating component supply device, and manually returns the unfed components to the vibrating component storage hopper. There is. Such work is very tedious, and if this work is neglected, the load on the trough of the vibrating feeder becomes large, and therefore the driving force is constant and the amplitude becomes small. Since the vibration mode is deformed, it may not be possible to perform a predetermined feeding operation.

Further, the present applicant has previously arranged a linear vibration feeder for returning components in at least one of the multiple rows of linear vibration feeders in the vicinity thereof, and the downstream side end portion of the multiple rows of linear vibration feeders is The part receiving means receives the overflowed part or the part that has not been fed, and an opening formed on the upstream side of the linear vibration feeder for returning the part through an opening provided in the part receiving means by some guide means. To the lower end of the vibrating component storage hopper arranged on the upstream side of the multi-row linear vibrating feeder, and the spiral track formed inside this is guided. There is proposed a device which is transferred by vibration and is guided into the above-mentioned multi-row linear vibration feeder from a component discharge chute provided at the upper end thereof. Although it is possible to completely automate this, the vibrating component storage hopper is provided with a drive unit of a so-called spiral vibrating part feeder, and the multi-row linear vibrating feeder is provided with a drive mechanism for performing linear vibration, Further, the linear vibration feeder for returning the components, which is arranged in the vicinity of this, also has a similar linear vibration drive mechanism, although its capacity is smaller than that of the drive mechanism of the multi-row vibration feeder. Therefore, it is equipped with three vibration drive units.
One of them is very expensive, which greatly increases the cost of the entire apparatus as a whole, and the return straight line formed at the downstream end of the component receiving portion formed below the multi-row vibrating feeder. It is very important to align the opening for transferring to the trough of the vibrating feeder with the opening formed in the trough of the linear vibrating feeder for returning the parts, and to adjust the gap between them, especially when the parts are small. Difficult,
If it is too small, vibrations in opposite directions cause vibration interference, which may impair the original function of the component feeding means in the multi-row vibration feeder.

[Problems to be solved by the invention]

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a vibrating component supply apparatus which can significantly reduce the apparatus cost and can be completely automated.

[Means for solving problems]

The above-mentioned object is to form a multi-row transfer track, and to oscillate a linear trough provided with a part adjusting means on each of the transfer tracks to transfer the parts along the trough. A linear vibrating feeder for feeding parts to a next process in a predetermined posture, and a constant diameter on the inner peripheral wall surface of a substantially cylindrical component receiver arranged on the upstream side of the linear vibrating feeder and performing torsional vibration. To form a spiral part transfer track, store a large amount of parts, transfer the parts along the part transfer track, and use a chute-shaped part discharge means provided at the upper end of the part to transfer the trough of the linear vibration feeder. A vibratory component storage device for supplying a component to the component, and a component not fed by the component feeding means below the trough of the linear vibration feeder, and A component receiving means for roughly receiving a component supplied in an overflow state is integrally provided, and the component receiving means is inclined downward toward the upstream side of the trough at least at a portion for receiving the component falling from the trough. And having an inclined surface narrowing in a V shape, the vibrating component storage device is provided with an annular guide track concentrically with the component receiver and fixed to an outer peripheral wall portion below the component receiver, The transfer surface of the guide track is formed downward toward the outer peripheral wall of the component receiver, an opening is formed in the outer peripheral wall of the component receiver, and the component discharged from the inclined surface is guided by the guide track and the guide track. The vibrating component supply device is characterized in that the vibrating component is returned to the lower end of the component transfer track of the vibrating component storage machine through the opening.

[Action]

The components stored in large quantity in the component receiver of the vibrating component storage machine rise up along the spiral component transfer track due to the torsional vibration, and are supplied to the trough of the linear vibration feeder from the chute-shaped component discharging means. While the parts are transferred along the multi-row transfer tracks formed in the trough, the parts are arranged in a predetermined posture by the part aligning means provided on each of the transfer tracks and supplied to the next process. The parts that have not been fed by the feeding means and the components that have been supplied to the trough in the overflow state fall on the inclined surface of the component receiving means below the trough and are transferred to the upstream side of the trough. Then, the components supplied to the annular guide track provided in the vibration component storage device are transferred by torsional vibration along the transfer surface formed downward toward the outer peripheral wall portion of the component receiver, and the components are received. It is returned to the lower end of the component transfer truck through an opening formed in the peripheral wall of the container.

The vibration driving unit in the vibrating component supply device is necessary only for the linear vibrating feeder and the vibrating component storage device, and the driving means for returning to the vibrating component storage device side is not separately provided, so that the device cost is significantly reduced. In addition, since the component receiving means is integrally formed on the linear trough below the trough, the overall structure is compact, and the component is reliably returned to the lower end of the vibration component storage device on the upstream side. be able to. Further, even when the device is assembled, a structure for returning the device is not particularly required, which is very easy. Therefore, the production cost can be significantly reduced.

〔Example〕

Hereinafter, a multi-row vibrating component supply apparatus according to an embodiment of the present invention will be described with reference to the drawings.

1 and 2 show the whole of the present apparatus, the whole apparatus is shown by (1) in the figure, and mainly for storing a large amount of parts and supplying this to the downstream side of the present invention. Arranged behind the vibrating bowl feeder (2) for storage as a component vibrating part storage, the multi-row linear vibrating feeder (3) as a linear vibrating feeder as a component of the present invention, and the vibrating bowl feeder for storage. And a rotary drive (4). The bowl feeder (2) is provided with a bowl portion (5) as a cylindrical component receiver, and a component transfer track (6) is formed in a spiral shape on the inner peripheral wall surface thereof. An annular guide track (7) for receiving components is integrally fixed to the outer peripheral wall portion on the lower end side of the bowl portion (5). A movable core (8) is integrally formed on the lower surface of the bowl portion (5) and is connected to the base block (9) by an inclined leaf spring (11) arranged at equal angular intervals. . An electromagnet (13) wound with a coil (12) is fixed on the base block (9). The known torsional vibration drive unit is constructed as described above, and the whole is covered with the cover (14). The whole vibrating bowl feeder for storage (2) configured as described above is the above-mentioned multi-row linear vibrating feeder (3),
It is mounted on the common base (15) together with the rotary drive (4) with its height adjusted.

The base block (9) of the storage vibrating bowl feeder (2) is installed on the base (15) via the rotary drive mechanism (10) whose details are clearly shown in FIGS. 3 to 5. As shown in FIG. 3, a thrust bearing (17) is attached to the central portion of a pedestal (16) fixed to the base (15), which comprises an upper rotating disc (18) and a bolt (18). 20). That is, the screw portion of the bolt (20) is screwed and fixed in the screw hole formed in the central portion of the pedestal (16) and is fitted to the inner race of the bearing (19) attached to the rotating disc (18). The outer race is fitted to the rotating disc (18).

The base block (9) of the storage vibrating bowl feeder (2) is connected to the base (15) via the rotary drive mechanism (10) as described above, but the base block (9) is Anti-vibration rubber (2
It is connected to the rotating disc (18) by 1). That is, the details of the anti-vibration rubber (21) are shown in FIG. 3, and are substantially cylindrical, and the threaded portion (21b) is formed on the upper surface side thereof, which is screwed into the screw hole of the base block (9). The screw portion (21a) that is embedded in the lower surface of the rotary disc (1a)
The anti-vibration rubber (21) is securely held between the base block (9) and the rotating disc (18) by being inserted into the hole of 8) and screwed and fixed by a nut, and also 9) The vibration force transmitted to 9) is prevented from being transmitted to the rotating disc (18) and the pedestal (16) side.

The rotary drive device (4) has a motor (22) as a rotary drive means as a main structure, and it has a built-in speed reduction mechanism, and its output shaft (23) is a reverse shaft as shown in FIG. It is fitted and fixed in the center hole of the coupling (24) having a T-shaped cross section. The crank pin (29) is screwed and fixed as shown in FIG. 4 while being displaced from the center of the coupling (24). The crank pin (29) is connected to one end of the crank lever (25) via a bearing B. That is, the crank pin (29) is fitted and fixed to the inner race of the bearing B, and the outer race is fitted and fixed to the hole of the crank lever (25). As shown in FIGS. 5A and 5B, the output shaft (23) of the motor (22) is located at the center of the coupling (24), but it is deviated from this and the crank pin (29) described above is pivoted. This deviation distance G has a relationship as shown in FIGS. 5A and 5B, which is related to the length of the crank lever (25) and the bowl portion of the bowl feeder (2). It is set in correspondence with a desired swing angle range of the discharge chute (27) as the component discharge means fixed to the upper end side of the outer peripheral wall of (5).

As shown in FIGS. 5A and 5B, the coupling (2
4) rotates in the direction of the arrow, but crank pin (2
When 9) comes to the position shown by the chain double-dashed line, the crank lever (2
5) takes the position shown by the chain double-dashed line, at which time the discharge chute (27) takes the position shown by the chain double-dashed line. Similarly, as shown in FIG. 5B, the discharge chute (27) takes the positions indicated by the one-dotted flow line and the two-dot chain line in other rotation phases. As described above, the discharge chute (27) is configured to vibrate at an angle of 2α. The other end of the crank lever (25) is pivotally attached to the rotating disc (18) via a pivot pin (26). That is, the pivot pin (26) has the bearing B attached to one end side.
Fitted and fixed to the inner race side of bearing B ', similar to
The outer race is fitted and fixed in the hole of the crank lever (25).

Next, a multi-row linear vibrating feeder (3) according to the present invention
Will be described in detail. In the multi-row linear vibration feeder (3), the movable part (30) is composed of the multi-row track portion T and a receiving box (45) as a component receiving means which is integrally fixed to the lower part of the multi-track section T. The receiving box (45) Is coupled to the base block (31) by a pair of front and rear inclined leaf springs (32) (33), and an electromagnet (35) around which a coil (34) is wound is fixed on the base block (31). This faces the movable core (36) fixed to the receiving box (45) side with a gap. The base block (31) is fixed to a height adjusting frame (37), which is connected to the base block (40) by a pair of upright leaf springs (38, 39). The spring constants of the leaf springs (38) (39) are sufficiently small,
Moreover, the frame (37) has a sufficiently large mass, which constitutes a vibration isolation system.

As clearly shown in FIG. 8, the multi-row track portion T is composed of a plurality of track portions T ₁ , T ₂ and T ₃ , each of which has a groove (41A) (41B) as a suspension track of the component m. )
And (41C) are multi-rows, and 10 rows are formed in this embodiment. Also, the grooves (41B) (41B) in the track portions T ₂ and T ₃
Parts drop holes (42B) (42C) as shown in FIG. 7 are formed on both sides of C). This hole (42B) (42
The component m that has overflowed via C) or the component m that has not taken the suspended posture is configured to drop into the lower receiving box (45). Further, as shown in FIGS. 1 and 2, a transparent holding plate (43) is provided above the track portion T _3.
Are attached with bolts (44).

Next, the receiving box (45) will be described with reference to FIGS. 6 and 8. This is a rectangular shape as a whole and is formed on the upper surfaces of the side walls (46a) (46b) formed at both edges. Both side edges of the track portions T ₁ , T ₂ and T ₃ are screwed and fixed to the formed screw hole (100) with a bolt (44). Further, the screw hole (101) is also formed between the side walls (46a) (46b).
(102) (51a) (51b) are formed so that the track portions T ₁ , T ₂ and T ₃ are more firmly fixed to the receiving box (45). Side wall (46a) (46b) of receiving box (45)
A flat surface portion ( 47 ) is formed on the downstream side, and an inclined surface portion ( 48 ) is formed on the upstream side. In addition, the vibration direction of the multi-row linear vibrating feeder (3) is the inclined surface portion ( 48 ).
The inclination of the inclined surface portion ( 48 ) is larger than the transfer force due to the vibration of the multi-row linear vibrating feeder (3). A ridgeline (49) is formed between them, and the component m that falls from the drop hole (42) of the multi-row track portion T described above.
Is designed to fall on this inclined surface ( 48 ).
That is, it falls on the upstream side of the ridgeline (49). The projecting portions (50a) (50b) are formed on the inclined surface portion ( 48 ), and the above-mentioned screw holes (51a) (51b) are formed in this, and also in this portion, the track portions T ₁ , T ₂ are formed. Is fixed so that secondary bending vibration does not occur due to vibration. Further, although it also falls into the passage between the projecting portions (50a) and (50b), the component m dropped by these inclined surface portions ( 48 ) is smoothly guided to the above-mentioned vibrating bowl feeder for storage (2). Is configured. Further, side walls (52a) (52b) are formed on both sides of the inclined surface portion ( 48 ) so as to be inclined toward each other toward the center line of the inclined surface portion ( 48 ). It is adapted to be supplied to the guide track (7) of 2).

The multi-row vibrating component supply apparatus according to the present embodiment has been described above. Next, this operation will be described.

It is assumed that a large amount of parts m (screws) are put into the bowl portion (5) of the storage vibrating bowl feeder (2), which is shown only in a scattered manner in FIG. When an alternating current is applied to the coil (12), a torsional vibration force is generated, whereby the component m is transferred by vibration on the component transfer track (6) in the bowl portion (5) and goes up, as shown in FIG. Stopper (120) formed at the top as shown
From here, parts are supplied to the multi-row linear vibrating feeder (3) through the discharge chute (27).

On the other hand, the rotation drive device (4) allows the coupling (24)
The crank lever (25) pivotally attached to the
Swing as shown in Figure 5B. That is, the crank pin (29), which is eccentrically and pivotally attached to the output shaft (23) by rotating the coupling (24) in the direction of the arrow, that is, in the clockwise direction in the figure, does not appear at the position shown by the solid line in FIG. 5A. The discharge chute (27) fixed to the upper end of the peripheral wall of the bowl (5) is shown by the alternate long and short dash line because the pivot point of the tip of the crank lever (25) to the bowl (5) is at the position shown in the figure. Takes the position indicated by. That is, the linear vibration feeder (3) is located along the center line thereof. The component m is dropped and supplied from this position. Then the second
The crank pin (2
When 9) rotates, the crank lever (25) takes the position shown by the chain double-dashed line, which causes the discharge chute (27) to take the position shown by the chain double-dashed line. That is, it takes a position that is oscillated by α degrees in the clockwise direction from the position indicated by the alternate long and short dash line. As a result, the component m is preferentially supplied to the track portion on the right side of the center line of the track portion T of the linear vibration feeder (3) in the transfer direction. Next, as shown in FIG. 5B, when the crank pin (29) rotates to the position shown by the solid line, the crank lever (25) takes the position shown by the solid line. As a result, the discharge chute (27) takes the position shown by the alternate long and short dash line. That is, it is the position in the initial rotation phase in FIG. 5A. Then, when the crank pin (29) rotates to the position shown by the chain double-dashed line, the discharge chute (27) takes the position shown by the chain double-dashed line. That is, the component m is preferentially supplied to the left track portion in the transfer direction due to the vibration of the track portion T. As described above, the discharge chute (27) oscillates in the range of twice the angle a degrees shown in FIG. 5A, so that the ten rows of grooves (41A) of the track portion T in the linear vibration feeder (3) are Parts m are supplied by being uniformly distributed.
As shown in FIG. 8, the component m is the track portion T ₁ on the most upstream side.
In the above, since the shaft portion is slightly larger than the depth to the bottom wall portion, the shaft portion is slightly tilted and transferred by vibration while the lower end of the shaft portion is in contact. Then, when reaching the second track portion T ₂ (the top surface thereof is at the same level as the bottom surface of the track portion T ₁ ), the lower end of the shaft portion is transferred while being in contact with the bottom surface of the track portion T ₁ , so that the suspension posture The second track portion T ₂ is transferred in a completely suspended posture while falling down as it is without breaking. In the third truck portion T ₃ , the suspended transfer road surface is higher than the bottom wall portion of the second truck portion T ₂ , and the bottom wall portion thereof is lower than the bottom wall portion of the second truck portion T _2. After all, it is dropped so as to take a stable suspended posture without breaking the suspended posture and is guided to the track portion T ₃ . Even if the vibrating bowl feeder (2) supplies the linear vibrating feeder (3) to the linear vibrating feeder (3) in an overflow state due to the level difference between the track portions T ₁ , T ₂ and T ₃ as described above, the overflowed parts are not allowed to fall into the dropping holes. It smoothly falls through the (42), and the part m not in the suspended posture also falls through the dropping hole (42) and into the lower receiving box (45).

As described above, since the grooves (41C) of the multi-row track portion below the holding plate (43) are supplied with a proper interval in a suspended posture, the blockage phenomenon at the inlet of the holding plate (43) It is possible to stably maintain the suspended posture and supply it to the next process up to that posture without causing the above.

On the other hand, the component m dropped on the inclined surface portion ( 48 ) of the receiving box (45) slides toward the guide track (7) of the storage vibrating bowl feeder (2) due to the downward inclination toward the upstream side. The vibration direction to the receiving box (45) is almost perpendicular to the longitudinal direction of the pair of front and rear inclined leaf springs (32) (33), but a few degrees to this inclined surface portion ( 48 ). Therefore, the transfer force due to the vibration is much smaller than that of the flat portion ( 47 ), and the gravity action due to the downward inclination toward the upstream side is larger, and the transfer can be smoothly performed toward the upstream side. Although the transfer force due to vibration is small, a large amount of it drops on the inclined surface part ( 48 ) and causes a blockage phenomenon in the narrow path between the protruding parts (50a) (50b) or between these and the side wall parts (52a) (52b). Also, since this will be destroyed by vibration, it assists the smoother transfer to the upstream side. The shape of the protrusions (50a) and (50b) also promotes the destruction of the blocking phenomenon. As a result, even if the shape of the component is a tangled component such as a coil, the component can be smoothly transferred without being blocked. As shown in FIG. 8, the part m dropped on the inclined surface portion ( 48 ) of the receiving box (45) is the guide track (7).
The part m is transferred in the clockwise direction in FIG. 2 because it is subjected to torsional vibration, and is passed through an opening (150) formed in a part of the side wall of the bowl part (5). ) Is guided to the lower end of the spiral part transfer track (6) formed on the inner wall surface of (4), and this is similarly transferred by torsional vibration and transferred to the upper side, and the stopper at the upper end thereof. The portion (120) comes into contact with the multi-row track portion T of the linear vibrating feeder (3) through the discharge chute (27) and is supplied with the distribution action.

Since the apparatus of this embodiment has the above-described structure and operates, the parts are evenly distributed and supplied to the multi-row track portion T of the linear vibrating feeder (3) to undergo a predetermined alignment operation. Are supplied to the next process, but the misaligned parts m or overflowed parts m
5) It is guided to the guide track (7) of the vibrating bowl feeder (2) for storage through this inclined surface portion ( 48 ), and the part transfer track (6) formed from this to the inner wall surface. The linear vibrating feeder (3) is guided to and is again distributed to the linear vibrating feeder (3). However, in the linear vibrating feeder (3), there is only one vibrating drive unit, which is arranged on both sides or one side as in the conventional case. A vibration drive for returning is provided,
As a result, unlike the above-described configuration in which a transfer force in the opposite direction to the linear vibration feeder is applied to recirculate to the upstream storage vibration bowl feeder, the configuration is much simpler and the apparatus cost can be greatly reduced.

Furthermore, it is completely automated compared to the conventional method of temporarily storing unaligned parts or overflowed parts below the downstream end of the multi-row truck and manually returning them to the storage bowl. Therefore, the production cost can be significantly reduced.

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

For example, in the above embodiment, the storage vibrating bowl feeder (2) is oscillated by the rotary driving device (4) through its rotary driving mechanism (10), so that the linear vibrating feeder (3) is uniformly provided with parts. I tried to distribute
This swinging motion may not be performed, that is, the position of the discharge chute (27) may be fixed, and the supporting end of the distribution track in the linear vibration feeder (3) may be formed radially. Alternatively, instead of the rotary drive mechanism of the embodiment, as previously proposed by the present applicant (Japanese Patent Application No. 63-145126), a distribution mechanism which swings in a direction perpendicular to the transfer direction of the multi-row track portion. May be provided so that the tracks are uniformly distributed and supplied to the tracks in multiple rows.

Further, in the above embodiment, multiple rows of tracks are formed in the trough of the linear vibration feeder, and a groove smaller than the diameter of the head of the component feeding means, that is, the head of the component screw, and larger than the shaft is formed in each trough to suspend the component. Although one piece is supplied to the next step in a suspended posture, such a part feeding means is not limited to this as described above.

Further, in the above-mentioned embodiments, the component aligning means is configured to simply take the posture of suspending the components, but various known aligning means may be provided instead.

[Effect of device]

As described above, according to the vibrating component supply device of the present invention, components that are not automatically aligned or components that are in an overflow state are returned to the storage bowl portion without increasing the device cost as compared with the conventional device. You can

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a multi-row linear vibrating feeder according to an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a partially cutaway side view of a part thereof, and FIG. Figures 5A and
FIG. 5B is a plan view for explaining the operation of the same part, FIG. 6 is a partial plan view of an essential part of the present invention, and FIG. 7 is an enlarged perspective view of a part of the multi-row linear vibrating feeder in FIG. FIG. 8 is an enlarged sectional view taken along line VIII-VIII in FIG. In the figure, (2) …… Vibration bowl feeder for storage (3) …… Multi-row linear vibration feeder (5) …… Bowl part (6) …… Part transfer truck (7) …… Guide track (45)… … Inbox ( 48 ) …… Sloping surface

Claims (3)

(57) [Scope of utility model registration request] 1. A multi-row transfer track is formed, and linear troughs provided with parts adjusting means on each of the transfer tracks are vibrated to transfer parts along the trough, and the parts adjusting means are provided. The linear vibrating feeder for feeding the parts to the next process in a predetermined posture by the linear vibrating feeder, and a constant cylindrical shape on the inner peripheral wall surface of the cylindrical cylindrical component receiver disposed on the upstream side of the linear vibrating feeder and performing torsional vibration. A spiral component transfer track is formed with a diameter, a large amount of parts are stored, parts are transferred along the part transfer track, and a chute-shaped part discharge means provided at the upper end portion of the linear vibration feeder In a vibrating component supply device including a vibrating component storage device for feeding a component to a trough, a component not fed by the component feeding means below the trough of the linear vibrating feeder, and Provided the part receiving means for receiving the rough supplied with overflow state component integrally,
The component receiving means has an inclined surface that is inclined downward toward the upstream side of the trough and narrows in a V shape at least in a portion that receives the component falling from the trough,
The vibrating component storage device is provided with an annular guide track concentric with the component receiver and fixed to an outer peripheral wall portion below the component receiver, and a transfer surface of the guide track is an outer peripheral wall portion of the component receiver. Formed downwards toward the outer peripheral wall portion of the component receiver, the component discharged from the inclined surface through the guide track and the opening,
A vibrating component supply device, wherein the vibrating component storage device is returned to the lower end of the component transfer truck. 2. The vibrating component storage device is disposed on a rotary drive mechanism, and swings in a predetermined angle range by a rotary drive means, thereby swinging the component discharge means in a predetermined angle range. The vibrating component supply device according to claim 1, wherein components are uniformly distributed to the multi-row transfer trucks. 3. The vibration direction of the linear vibrating feeder is inclined at a few degrees with respect to the inclined surface, and the gravity action by the inclined surface is larger than the transfer force by the vibration of the linear vibrating feeder. The vibrating component supply apparatus according to claim 1, wherein the component is transferred toward the upstream side of the trough.