WO2015122327A1

WO2015122327A1 - Vibrating-type parts transporting device

Info

Publication number: WO2015122327A1
Application number: PCT/JP2015/053064
Authority: WO
Inventors: 浩氣向井; 昌良松島; 高橋　亨
Original assignee: Ntn株式会社
Priority date: 2014-02-17
Filing date: 2015-02-04
Publication date: 2015-08-20
Also published as: JP2015151243A; TW201538408A

Abstract

The purpose of the invention is to effectively suppress propagation of horizontal vibrations and vertical vibrations to the floor in a vibrating-type parts transporting device that transports parts linearly. Four vibrating bodies (1-4) are disposed in parallel on a base (5). The first and second vibrating bodies (1, 2) and drive springs (6, 7) connecting the bodies to the base (5) constitute one set of a paired vibration system. The third and fourth vibrating bodies (3, 4) and drive springs (8, 9) connecting the same to the base (5) constitute another set of the paired vibration system. The direction of incline of the two drive springs (6, 7) for the one paired vibration system is opposite of that for the two drive springs (8, 9) for the other paired vibration system. The two vibrating bodies of each paired vibration system vibrate in mutually opposite phases.

Description

Vibrating parts conveyor

The present invention relates to a vibration type component conveying apparatus that conveys a component linearly by vibrating a vibrating body and a conveying trough attached thereto by an excitation force generated by an excitation mechanism.

The vibration-type component conveying device is often used as a means for aligning and conveying components and supplying them to subsequent processes in the manufacturing process of various devices. The general structure is that the base and the upper vibrator arranged above it are connected by a slanted drive spring, and a transport trough having a linear part transport path is attached to the upper vibrator and the vibration is applied. In many cases, the vibration force generated by the mechanism vibrates the upper vibrating body and the conveyance trough in the horizontal direction and the vertical direction, and conveys the components linearly almost horizontally.

However, in such a vibration type component conveying device, vibration is also generated in the base due to the reaction force of the vibration of the upper vibration body, and the vibration propagates to the floor (floor base installation surface), and the same floor May affect the operation of other equipment installed on the surface.

On the other hand, in the vibration type parts conveying device, a counter vibrating body with a return trough is attached to the upper vibrating body in order to return the parts that have failed to be aligned in the conveying trough or the parts overflowing from the conveying trough to the upstream side of the conveying trough. The counter vibrator is connected to the base with a drive spring inclined in the direction opposite to the drive spring for the upper vibrator and is vibrated together with the return trough by the vibration mechanism. Some are transported in the opposite direction to the transport trough.

In this type of vibratory component conveying device that circulates components, the horizontal vibration of the base is offset by vibrating the upper vibrating body and the counter vibrating body in opposite phases to cancel the horizontal reaction force received by the base. Propagation of directional vibration to the floor can be suppressed. However, since the vertical reaction force received by the base is added, the propagation of the vertical vibration of the base to the floor surface increases. For this reason, the vertical direction of the base is usually increased by increasing the mass of the base or by providing a vibration spring such as a coil spring or a horizontally extending leaf spring between the base and the floor surface. An attempt is made to suppress propagation of vibrations to the floor (for example, see Patent Document 1 below).

JP 58-144010 A

However, in the conventional vibration type component conveying device that vibrates the upper vibrating body and the counter vibrating body in opposite phases, the vertical reaction force received by the base is greatly affected, and the mass of the base is increased as described above. And vibration isolation springs cannot be used to sufficiently reduce or absorb the vertical vibrations of the base, and the vertical vibrations may propagate to the floor. .

Therefore, an object of the present invention is to effectively suppress the propagation of horizontal vibration and vertical vibration to the floor surface in a vibration type component conveying apparatus that conveys components linearly.

In order to solve the above-described problems, the vibration component conveying device according to the present invention includes a base installed on the floor, two vibrators arranged in parallel above the base, and the vibrators as bases. A plurality of pairs of vibration systems that form a pair with the drive springs to be coupled, and an excitation mechanism that applies vibration to each of the vibration bodies, each of the pair vibration systems has two vibration bodies at the same inclination angle. It is connected to the base by an arranged drive spring, and vibrations having opposite phases are applied by the excitation mechanism, and the inclination direction of the drive spring of at least one pair of vibration systems is the other A conveying trough having a linear component conveying path is attached to at least one vibrating body of a pair vibration system having a driving spring in a predetermined inclination direction that is opposite to the inclination direction of the drive spring of the pair vibration system, Drive spring with reverse tilt direction At least one vibrator pairs oscillation system having adopted a configuration in which the return trough for transporting the components to the conveying trough opposite direction are mounted.

According to the above configuration, the two vibrating bodies of each pair vibration system vibrate in opposite phases to each other while being connected to the base by the drive spring having the same inclination angle. Both horizontal reaction force and vertical reaction force received from the body can be canceled to reduce horizontal and vertical vibrations of the base, and to the floor surface of the horizontal and vertical vibrations Can be effectively suppressed. Since the transport trough and the return trough are attached to a vibrating body whose drive springs are inclined in opposite directions, the parts are stably circulated between the transport trough and the return trough, and the parts are efficiently supplied to the subsequent process. be able to.

When two sets of the pair vibration systems are provided, the four vibration bodies of each pair vibration system form a single vibration body row, and the vibration bodies of both pair vibration systems are arranged inside the vibration body row. It is desirable to arrange one by one and vibrate the two vibrating bodies inside the vibrating body row in the same phase. In this way, the two vibrating bodies inside the vibrating body row vibrate in the same phase, and the two outer vibrating bodies vibrate in the opposite phase, thereby suppressing the rolling motion and yawing motion of the base. And more stable parts transportation. In this case, if the conveying trough is attached to one of the two vibrating bodies inside the vibrating body row and the return trough is attached to the other, the stability of parts transportation can be further improved.

In addition, when two pairs of the pair vibration systems are provided, four vibration bodies of each pair vibration system form a single vibration body row, and two pairs of the pair vibration systems are formed inside the vibration body row. An oscillating body is arranged, and the transport trough is divided into an upstream portion and a downstream portion, and an upstream portion of the transport trough is provided on one of the two vibrating bodies inside the vibrator row, and a downstream portion of the transport trough is provided on the other. It is also possible to adopt a configuration in which the return trough is attached to each of the two vibrating bodies outside the vibrating body row. In this way, it is easy to adjust the weight of each vibrating body including the trough, and thus it is easy to realize stable component conveyance in this respect.

And as the said excitation mechanism, what consists of the electromagnet attached to one of the two vibrating bodies of each said pair vibration system, and the movable iron core attached to the other, or the electromagnet attached to the said base, What consists of a movable iron core attached to each said vibrating body is employable.

As described above, the vibration type component conveying apparatus of the present invention is configured so that the horizontal reaction force and the vertical reaction force received by each vibration body from each vibrating body are canceled out. The horizontal vibration and the vertical vibration can be reduced, and the propagation of the horizontal vibration and the vertical vibration to the floor surface can be effectively suppressed. Therefore, there are fewer restrictions to suppress the influence on surrounding equipment than the conventional type that circulates parts, and the amplitude of the vibration of the conveyance trough and return trough is increased or the frequency is increased to increase the frequency of parts conveyance. High speed can be realized.

Top view of the component conveying apparatus of the first embodiment Front view of FIG. Right side view of FIG. Partially cut away top view of each trough shown in FIG. Top view of the component conveying apparatus of the second embodiment Top view of the component conveying apparatus of the third embodiment Sectional view along line VII-VII in FIG. Right side view of FIG. Top view without troughs in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show a first embodiment. In this vibration type component conveying apparatus, a pair of rectangular columnar first to fourth vibrating bodies 1 to 4 are arranged in parallel above a base 5 and each of a pair of front and rear (downstream side and upstream side in the component conveyance direction) pair. The drive springs 6 to 9 are connected to the base 5, and a transport trough 10 is attached to the third vibrator 3, and a return trough 11 is attached to the second vibrator 2. The vibration mechanisms 12 are respectively provided between the vibration bodies 2 and between the third vibration body 3 and the fourth vibration body 4. The base 5 may be installed directly on the floor, or may be installed on the floor via a vibration-proof member such as a vibration-proof rubber or a vibration-proof spring. Each of the drive springs 6 to 9 is a plate spring, but other elastic bodies can be used instead.

Among the vibrating bodies 1 to 4, the first vibrating body 1 and the second vibrating body 2 constitute a pair vibration system with the

drive springs

6 and 7 connected to the base 5, respectively. The third vibration body 3 and the fourth vibration body 4 constitute another pair vibration system with the

drive springs

8 and 9 that are connected to the base 5 respectively. The two

drive springs

6 and 7 of one pair vibration system are arranged to incline forward (right side in FIGS. 1 and 2) at the same inclination angle, and the two

drive springs

8 and 9 of the other pair vibration system. Are arranged to incline backward (left side in FIGS. 1 and 2) at the same inclination angle.

The conveyance trough 10 is formed with a substantially horizontal linear component conveyance path 10 a on the upper surface side, and the lower surface side is attached to the third vibrating body 3. On the other hand, the return trough 11 is formed with a straight part return path 11a which is formed higher on the upper surface side toward the upstream side in the component conveying direction, and the lower surface side is attached to the second vibrating body 2. The

troughs

10 and 11 are arranged so as to be adjacent to each other, and a part overflowing from one side of the part transport path 10 a of the transport trough 10 falls to the part return path 11 a of the return trough 11. Further, the rear part of the part return path 11a is higher than the part transport path 10a, and the parts returned and transported by the return trough 11 are transferred from the rear end part of the part return path 11a to the part transport path 10a as will be described later. It has become.

Each excitation mechanism 12 includes an electromagnet 13 attached to one lower surface side of two vibrating bodies of each pair vibration system and a movable iron core 14 attached to the other lower surface side (see FIGS. 2 and 4). ). Then, the electromagnet 13 and the movable iron core 14 are arranged so as to face each other at a predetermined interval in the component conveyance direction, and the electromagnet 13 and the movable iron core are acted upon by energizing the electromagnet 13 to apply an electromagnetic attractive force. Exciting force is generated between the two vibration systems 14 and vibrations having opposite phases are imparted to the two vibrating bodies of each pair vibration system.

In this embodiment, the electromagnet 13 of the vibration mechanism 12 is attached to the first vibrating body 1 and the fourth vibrating body 4, and the movable iron core 14 is attached to the second vibrating body 2 and the third vibrating body 3, respectively. The first vibration body 1 and the second vibration body 2 of one pair vibration system vibrate in opposite phases, and the third vibration body 3 and the fourth vibration body 4 of the other pair vibration system are opposite to each other. It comes to vibrate in phase. In addition, in each excitation mechanism 12, the vibration frequency of both pair vibration systems is the same, the first vibration body 1 and the fourth vibration body 4 vibrate in the same phase, and the second vibration body 2 and the third vibration body 12 The vibrating body 3 is adjusted so as to vibrate in the same phase.

Further, the weights of the vibrating bodies 1 to 4 are adjusted so that the weights including the members (

troughs

10, 11, electromagnet 13, movable iron core 14, weight adjusting weight not shown) attached to the vibrators 1 to 4 are substantially the same. Has been. As a result, the resonance frequency can be made substantially the same and the adjustment of the vibration frequency can be made simply by aligning the spring constants of the drive springs 6 to 9 (for example, the same number of leaf springs forming the drive spring). It has become.

The vibration mechanisms 12 are arranged in such a manner that the movable iron core 14 is attached to the vibrating

bodies

2 and 3 on the

troughs

10 and 11 side as in this embodiment, and the vibrating

bodies

1 and 4 on the side where the

troughs

10 and 11 are not provided. When the electromagnet 13 is attached, the weights of the vibrators 1 to 4 (including the members attached to each) can be easily adjusted. On the other hand, if the electromagnet 13 is attached to the vibrating

bodies

2 and 3 on the

troughs

10 and 11 and the movable iron core 14 is attached to the vibrating

bodies

1 and 4 on the side where the

troughs

10 and 11 are not provided, It becomes easy to align the height direction positions of the centers of gravity of the bodies 1 to 4, and stable vibration can be obtained.

As described above, this vibration type component conveying apparatus includes two pairs of vibration systems. In each vibration system, two vibrating bodies (1, 2, or 3, 4) are arranged at the same inclination angle. The drive springs (6, 7 or 8, 9) connected to the base 5 are vibrated in opposite phases by the vibration mechanism 12, and the drive springs ( 6, 7 and 8, 9) are inclined in opposite directions, the return trough 11 is attached to the second vibrating body 2 of one pair vibration system, and the third vibrating body 3 of the other pair vibration system is attached A transport trough 10 is attached.

Then, when vibration is applied to each vibrating body 1 to 4 by each vibration mechanism 12, the conveyance trough 10 conveys the parts on the component conveyance path 10a forward and supplies them to the subsequent process, and overflows from the component conveyance path 10a. The parts are transported back by the return trough 11 in the parts return path 11a and returned to the upstream part of the parts transport path 10a.

At this time, in each pair vibration system, the two vibrating bodies (1, 2 or 3, 4) are mutually opposite in a state where they are connected to the base 5 by the drive springs (6, 7 or 8, 9) having the same inclination angle. Since it vibrates in phase, both the horizontal reaction force and the vertical reaction force that the base 5 receives from the vibrating bodies 1 to 4 via the drive springs 6 to 9 are canceled out. Here, as the vibration mechanism 12 that vibrates each of the vibrators 1 to 4, a configuration is adopted in which the electromagnet 13 is attached to one of the two vibrators of each pair vibration system, and the movable iron core 14 is attached to the other. The reaction force received by the base 5 from the two vibrating bodies is surely offset.

This makes it difficult for the base 5 to generate horizontal vibration or vertical vibration, and the vibration hardly propagates from the base 5 to the floor surface. Therefore, it is possible to carry parts at a high speed by increasing the amplitude of the vibration of the transport trough 10 and the return trough 11 or increasing the frequency without considering the influence on surrounding equipment.

In addition, four vibrating bodies 1 to 4 of each pair vibration system form one vibrating body row, and two vibrating bodies (second vibrating body 2 and second vibrating body 2 are arranged inside the vibrating body row). The third vibrating body 3) vibrates in the same phase, and the two vibrating bodies (the first vibrating body 1 and the fourth vibrating body 4) arranged outside in the opposite phase vibrate, so that the base 5 Rolling movement and yawing movement can be suppressed, and stable parts can be conveyed. Here, the conveying trough 10 is attached to one of the two vibrating bodies inside the vibrating body row (third vibrating body 3), and the return trough 11 is attached to the other (second vibrating body 2). This contributes to improving the stability of parts conveyance.

Next, an example (second and third embodiments) in which the arrangement of the pair vibration system is changed based on the above-described first embodiment will be described. In addition, about the member which has the same function as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

First, in the second embodiment shown in FIG. 5, the first vibrating body 1, the third vibrating body 3, and the drive springs 6 and 8 that connect the vibrating

bodies

1 and 3 to the base 5 are combined. A pair of vibration systems is composed of the second vibration body 2, the fourth vibration body 4, and the drive springs 7 and 9 connecting the

vibration bodies

2 and 4 to the base 5, respectively. Is configured. The drive springs 6 and 8 of one pair vibration system are arranged so as to incline forward (right side in FIG. 5) at the same inclination angle, and the drive springs 7 and 9 of the other vibration system are rearward (see FIG. (Left side of 5). A transport trough 10 is attached to the second vibrating body 2, and a return trough 11 is attached to the third vibrating body 3. Moreover, although illustration is abbreviate | omitted, arrangement | positioning of each excitation mechanism 12 is the same as 1st Embodiment.

Therefore, when the vibrating bodies 1 to 4 are vibrated by the respective excitation mechanisms 12, the first vibrating body 1 and the third vibrating body 3 of one pair vibration system vibrate in mutually opposite phases, and the other pair vibrations. The second vibrating body 2 and the fourth vibrating body 4 of the system vibrate in mutually opposite phases, and the second vibrating body 2 and the third vibrating body 3 vibrate in the same phase. The parts are transported forward, and the return trough 11 transports the parts back.

As in the first embodiment, the horizontal reaction force and the vertical reaction force received by the base 5 from the vibrating bodies 1 to 4 via the drive springs 6 to 9 are canceled out. 5, the horizontal vibration and the vertical vibration hardly occur, and there is almost no propagation of vibration from the base 5 to the floor surface. Further, two vibrating bodies (second vibrating body 2 and third vibrating body 3), which are arranged inside the vibrating body row and to which the transport trough 10 and the return trough 11 are respectively attached, vibrate in the same phase. Since the two vibrating bodies (the first vibrating body 1 and the fourth vibrating body 4) arranged on the outside in opposite phases vibrate, the rolling motion and yawing motion of the base 5 are unlikely to occur. For this reason, high-speed and stable component conveyance can be performed.

6 to 9 show a third embodiment. In this embodiment, the first vibrating body 1, the fourth vibrating body 4, and the driving springs 6 and 9 that connect the vibrating

bodies

1 and 4 to the base 5 respectively constitute a pair of vibration systems. The second vibrating body 2, the third vibrating body 3, and the driving springs 7 and 8 for connecting the vibrating

bodies

2 and 3 to the base 5 constitute another pair vibration system. The drive springs 6 and 9 of one pair vibration system are arranged to incline forward (right side in FIGS. 6 and 7) at the same inclination angle, and the drive springs 7 and 8 of the other pair vibration system have the same inclination angle. It is arranged to tilt backward (left side in FIGS. 6 and 7).

The transport trough 15 is divided and attached to the second vibrating body 2 and the third vibrating body 3, and the

return troughs

16 and 17 are attached to the first vibrating body 1 and the fourth vibrating body 4, respectively. ing. The conveying trough 15 is divided into an upstream portion 15a attached to the second vibrating body 2 and a downstream portion 15b attached to the third vibrating body 3, and a component conveying path 15c is formed at the center in the width direction of each. Is formed.

In this embodiment, as the vibration mechanism 18, two electromagnets 19 are attached to the upper surface of the base 5, and the lower surfaces of the vibrating bodies 1 to 4 are opposed to the electromagnet 19 with a predetermined interval in the component conveying direction. A movable iron core 20 is attached. Among the movable iron cores 20, those attached to the first and second vibrating

bodies

1 and 2 are arranged behind the electromagnet 19, and those attached to the third and fourth vibrating

bodies

3 and 4 are electromagnets. 19 (see FIG. 9).

When the vibrating bodies 1 to 4 are vibrated by the vibration mechanism 18, the first vibrating body 1 and the fourth vibrating body 4 of one pair vibration system vibrate in mutually opposite phases, and the other pair vibration system The second vibrating body 2 and the third vibrating body 3 vibrate in mutually opposite phases, and the vibration of the first vibrating body 1 and the vibration of the second vibrating body 2 are the same phase, The vibration and the vibration of the fourth vibrating body 4 are also in phase. The upstream part 15a and the downstream part 15b of the transport trough 15 transport the parts on the parts transport path 15c forward, and the parts overflowing from the parts transport path 15c to both sides thereof are returned to the parts of the

return troughs

16 and 17, respectively. It is conveyed back by the

paths

16a and 17a and returned to the upstream part of the component conveying path 15c.

Also in the third embodiment, as in the first and second embodiments, the reaction force received by the base 5 is canceled both in the horizontal direction and in the vertical direction, so that there is almost no propagation of vibration to the floor surface and high speed. Can carry parts. Further, since each of the vibrating bodies 1 to 4 is provided with the same movable iron core 20, and one of the transport trough upstream portion 15a, the transport trough downstream portion 15b, and the

return troughs

16, 17, the first and second The weight adjustment of each vibrating body 1 to 4 is easier than in the second embodiment, and stable conveyance is possible. Furthermore, since the electromagnets are not attached to the vibrators 1 to 4, the weight including the members attached to the vibrators 1 to 4 can be reduced as compared with the first and second embodiments. For this reason, it is possible to vibrate each of the vibrating bodies 1 to 4 at a higher frequency, and the component conveying speed can be increased.

Moreover, the conveyance trough can be attached to each of the second vibrating body 2 and the third vibrating body 3 as in the first and second embodiments, which is not divided. In addition, when using a transport trough that is not divided, the arrangement is replaced with the return trough, that is, the transport trough is attached to the first and fourth vibrating

bodies

1 and 4, respectively, and the second and third vibrating

bodies

2 and 3 are attached. It is also possible to attach a return trough to each of these.

Furthermore, since the number of pairs of the pair vibration system only needs to be a plurality of sets, in the above-described embodiments, the number of pairs is two, but may be three or more.

1-4 Vibration body 5 Base 6-9 Drive spring 10 Transport trough 10a Parts transport path 11 Return trough 11a Parts return path 12 Excitation mechanism 13 Electromagnet 14 Movable iron core 15 Transport trough 15a Upstream section 15b Downstream section 15c

Parts transport path

16 , 17

Return troughs

16a, 17a Parts return path 18 Excitation mechanism 19 Electromagnet 20 Movable iron core

Claims

A plurality of sets of a pair vibration system comprising a base installed on the floor, two vibrators arranged in parallel above the base, and drive springs connecting the vibrators to the base, respectively. An excitation mechanism for applying vibration to each vibrating body,
Each pair vibration system is connected to the base by a drive spring in which two vibrating bodies are arranged at the same inclination angle, and is provided with vibrations having opposite phases by the vibration mechanism, At least one vibration body of a pair vibration system having a drive spring in a predetermined inclination direction, wherein the inclination direction of the drive spring of at least one pair vibration system is opposite to the inclination direction of the drive springs of the other pair vibration systems And a return trough that carries a component in a direction opposite to the conveyance trough to at least one vibrating body of a pair vibration system having a drive spring having a linear component conveyance path and having a drive spring having a reverse inclination direction. Vibrating component transport device with attached.
Two pairs of vibration systems are provided, and four vibration bodies of each pair vibration system form a single vibration body row, and one pair of vibration bodies of both pair vibration systems is provided inside the vibration body row. 2. The vibrating component conveying device according to claim 1, wherein two vibrating bodies arranged inside each of the vibrating body rows are vibrated in the same phase.
3. The vibratory component transport device according to claim 2, wherein the transport trough is attached to one of the two vibrators inside the vibrator row, and the return trough is attached to the other.
Two pairs of the pair vibration systems are provided, and four vibration bodies of each pair vibration system form a single row of vibration bodies, and two vibration bodies of one pair of vibration systems are arranged inside the vibration body row. Arranged, dividing the transport trough into an upstream part and a downstream part, attaching the upstream part of the transport trough to one of the two vibrating bodies inside the vibrating body row, and attaching the downstream part of the transport trough to the other, The vibration type component conveying apparatus according to claim 1, wherein the return trough is attached to each of two vibrating bodies outside the vibrating body row.
5. The excitation mechanism according to claim 1, wherein the excitation mechanism includes an electromagnet attached to one of the two vibrators of each pair vibration system and a movable iron core attached to the other. The vibratory component conveying device according to 1.
5. The vibrating component according to claim 1, wherein the excitation mechanism includes an electromagnet attached to the base and a movable iron core attached to each vibrating body. Conveying device.