TWI516427B - Parts feeder - Google Patents

Description

Component supply device

The present invention relates to a component supply device that utilizes vibration to transfer a conveying element.

In the prior art, a component supply device such as a linear component feeder that supplies the components to the downstream side in the transport direction by applying vibration to the transport element has been proposed (see, for example, Patent Document 1 below). The component supply device has a fixing portion (anti-vibration mount) and a movable portion (balance weight), and the fixed portion and the movable portion are coupled by a plate-shaped vibration spring, and the conveying member provided on the movable portion is vibrated in the horizontal direction. The conveying element is supplied to the downstream side in the conveying direction.

The vibration spring has a width equal to the width of the movable portion in the left-right direction (the width in the direction orthogonal to the conveyance direction), and the upper end portion of the vibration spring is attached to the movable portion and the vibration spring is along the left-right direction of the movable portion. Further, the vibration spring is disposed in pairs on the upstream side in the transport direction of the movable portion and the downstream side in the transport direction.

However, in order to smoothly convey the conveying member, it is necessary to prevent the conveying member from causing a behavior such as a pitching phenomenon or a rolling phenomenon. For this reason, it is generally necessary to adjust the inclination angle of the vibration spring (the inclination angle in the conveying direction).

In order to adjust the inclination angle of the vibration spring, for example, the technique shown in Patent Document 2 has been proposed. The component supply device of Patent Document 2 is configured to be able to adjust the inclination angle of the vibration spring using a spacer.

Patent Document 1: Japanese Laid-Open Patent Publication No. 2007-168936

Patent Document 2: Japanese Laid-Open Patent Publication No. 2007-276963

In the component supply device, the vibration springs are arranged in pairs in the conveying direction of the movable portion. Therefore, by adjusting the inclination angle of the vibration spring, it is possible to avoid the occurrence of the pitching phenomenon of the conveying member. However, the vibration spring has a width equal to the width of the movable portion in the left-right direction, and the vibration spring is attached in the left-right direction of the movable portion. Therefore, even if the inclination angle of the vibration spring is adjusted, the rolling member and the vibration in the left-right direction cannot be prevented from occurring. In order to prevent the rolling member from rolling and the vibration in the right and left direction, it is necessary to replace the vibration spring itself with an object that does not cause a rolling phenomenon or a vibration in the left and right direction. However, it is very difficult to select such a vibration spring, and it is large depending on the chance, and therefore, it is not practically adjustable so as not to cause a rolling phenomenon or a vibration in the left-right direction. Further, the above-described problem is not limited to the use of a plate-shaped vibration spring, and the above-described problem is also caused in the case where a coil spring is used instead of the plate-shaped vibration spring.

Accordingly, an object of the present invention is to provide a component supply device that can be easily adjusted so that the conveying member does not cause a rolling phenomenon or vibration in the right and left direction.

The present invention provides a component supply device including a fixing portion, a movable portion, a conveying member provided on the movable portion, and a vibration spring that connects the fixing portion and the movable portion, and is disposed in the movable portion by vibration of the vibration spring The upper conveying member vibrates to convey the conveying member supplied to the conveying member, wherein the vibration spring is provided with the first and second vibration springs at intervals in the conveying direction of the conveying member, and the fixing portion is The movable portion is coupled to the first and second vibration springs, and at least one of the first and second vibration springs is configured to be separated by a horizontal direction perpendicular to the conveyance direction, and each of the fixed portion and the movable portion is coupled The side portion and the angle of inclination to the above-described conveying direction can be changed.

In the component supply device of the above-described configuration, the first and second vibration springs can be changed by connecting the fixed portion and the movable portion to the first and second vibration springs that are disposed at intervals in the conveyance direction of the conveyance element. The angle of inclination of at least one of the parties. In this configuration, by adjusting the inclination angle (tilt angle) in the front-rear direction of the vibration spring, it is not easy to cause a pitch phenomenon in the conveyance member. In addition, at least one of the first and second vibration springs is divided in the left and right (width) directions perpendicular to the conveyance direction, and the side portions of the fixed portion and the movable portion are coupled. In other words, both sides in the width direction of the conveying member are individually supported by the vibration spring. Therefore, the phenomenon that the conveying member can vibrate in the width direction does not occur. Further, it is possible to prevent the traveling member around the axis along the conveyance direction from being a swing phenomenon, that is, the roll phenomenon does not occur. In this case, the vibration spring may be either a leaf spring or a coil spring.

In the component supply device of the present invention, the fixing portion has a base portion, and each of the first and second vibration springs has vibration damping for attenuating vibration transmitted from the fixing portion toward the base portion. a spring and a drive spring that elastically deforms the fixed portion and the movable portion in opposite phases, and the vibration-proof spring is provided separately in the width direction, and the inclination angle with respect to the conveyance direction can be changed. Preferably.

In the above configuration, when the vibration-proof spring is separated in the width direction and the inclination angle can be changed, the pitching phenomenon, the rolling phenomenon, and the vibration in the width direction of the conveying member can be easily prevented from occurring. In the above configuration, the anti-vibration springs are separated in the width direction. It is assumed that the amplitude of the drive spring is lowered when the drive springs are separated in the width direction. In this case, the carrying capacity of the conveying member in the conveying member is lowered. However, in the above configuration, since the vibration isolating spring is provided separately in the width direction, the conveying ability of the conveying member does not decrease.

In the component supply device of the present invention, the vibration-proof spring includes: a first vibration-proof spring located in the first vibration spring; and a second vibration-proof spring located in the second vibration spring, the first and second The anti-vibration springs are separately provided in the width direction described above, and it is preferable to change the inclination angle with respect to the conveyance direction.

According to this configuration, since the first anti-vibration spring and the second anti-vibration spring are separated in the width direction and the inclination angle can be changed, the inclination of the vibrating spring can be adjusted from four places of the conveyance member, and the conveyance member can be unstable. The move will not happen.

In the component supply device of the present invention, the vibration-proof spring is preferably configured such that the upper portion thereof is rotatably movable in the fixing portion by the transmission support shaft, and the inclination angle can be changed. According to this configuration, the inclination angle of the vibration-proof spring can be adjusted by an easy operation of rotating the vibration-proof spring around the support shaft.

According to the component conveying device of the present invention, the fixing portion and the movable portion are coupled to each other by the first and second vibration springs arranged at intervals in the conveying direction, and at least one of the first and second vibration springs is The width direction perpendicular to the conveyance direction is provided separately, and the respective side portions of the fixed portion and the movable portion are coupled, and the inclination angle with respect to the conveyance direction can be changed. Therefore, by adjusting the inclination angle (tilt angle) of at least one of the first and second vibration springs, the pitch phenomenon can be easily prevented from occurring in the conveyance member. At least one of the first and second vibration springs is separated in the width direction perpendicular to the component conveying direction, and the fixing portion and the movable portion are connected to each other by the side portion. Therefore, the phenomenon in which the conveying member vibrates in the width direction can be caused, and the further rolling phenomenon does not occur.

Hereinafter, an embodiment of the component supply device of the present invention will be described based on the drawings. 1 is a side view showing the entire structure of the component supply device, FIG. 2 is a rear view as seen from the downstream side (rear side) in the conveying direction, FIG. 3 is a front view of the regulating member, and FIG. 4 is a view showing the shape of the anti-vibration spring. Rear view. In the following description, the front-rear direction is the conveyance direction of the element, the left-right direction is the width direction which is perpendicular to the conveyance direction, and the height direction is the vertical direction which is perpendicular to the conveyance direction.

Moreover, in the following embodiment, the component supply device is a micro-component supply device, and is a linear feeder 300 that linearly transports and supplies the micro-element. The conveying member 305 of the linear feeder 300 is connected to a conveying path of a component feeder (not shown), and is provided on a table (not shown) together with the component feeder.

As shown in FIG. 1, the linear feeder 300 has a base portion 301, a movable weight 302, a balance weight 303, a vibration transmission portion 304, a conveying member 305, a coupling plate 370, a drive spring (support spring) 380, and an anti-vibration spring. 390. In addition, an adjustment member having an inclination angle of the anti-vibration spring 390 is provided. The drive spring 380 and the anti-vibration spring 390 correspond to a vibration spring.

A movable weight 302 is provided above the base portion 301. A balance weight 303 is provided above the movable weight 302 via a drive spring 380.

Further, inside the movable weight 302 and the balance weight 303 of FIG. 1, a fixed side core 401, a movable side core 402, a coil portion 403, and an electromagnet core 404 are provided. The fixed side core 401 is fixed to the balance weight 303, and the movable side core 402 is fixed to the movable weight 302, and the electromagnetic core 404 is disposed on the coil portion 403 so as to face the movable side core 402 so as to face each other. Vibration is generated by applying an alternating voltage to the electromagnet core 404, and the balance weight 303 and the movable weight 302 vibrate in directions opposite to each other.

A vibration transmitting portion 304 is provided at an upper portion of the balance weight 303. The vibration transmission portion 304 is fixed by a coupling plate 370 that is fixed to the movable weight 302 by a bolt (the reference numeral is omitted). That is, the vibration transmission unit 304 performs an operation in synchronization with the vibration of the movable weight 302. Further, on the upper surface of the vibration transmission portion 304, a conveying member 305 is detachably provided by a bolt (the reference numeral is omitted). By applying vibration to the conveying member 305, the element moves in a conveying groove provided on the conveying member 305.

The drive spring 380 is composed of a flat elastic member. Two through holes are provided on one end side of the drive spring 380, and two through holes are provided on the other end side. In Figures 1 and 2, reference numeral 385 shows a bolt. The bolt 385 has a spring washer and a flat washer, and the bolt 385 passes through a through hole on one end side of the drive spring 380 and is fixed to the balance weight 303.

In Figures 1 and 2, reference numeral 395 shows a bolt. The bolt 395 has a spring washer and a flat washer, and the bolt 395 passes through the through hole on the other end side of the drive spring 380 and is fixed to the movable weight 302.

The linear feeder 300 has an anti-vibration spring mechanism 500. The anti-vibration spring mechanism 500 is disposed apart from each other in the front-rear direction of the element transport direction. According to this configuration, the base portion 301 and the balance weight 303 are coupled at four positions by the vibration-proof spring mechanism 500. Each of the anti-vibration spring mechanisms 500 at the four positions has the same structure.

As shown in FIGS. 2 and 3, each of the anti-vibration spring mechanisms 500 has a pair of front and rear anti-vibration springs 390 and a partition 510 sandwiched between the anti-vibration springs 390. As shown in FIG. 4, each of the vibration-proof springs 390 is formed of a flat elastic member having a predetermined size in the vertical direction and the horizontal direction. A through hole 390a that is open at the top and a through hole 390b that is open at the lower side are formed at the upper and lower ends of each of the vibration isolating springs 390.

As shown in FIG. 3, the partition 510 is composed of an upper spacer 520 and a lower spacer 530. The upper spacer 520 is disposed at an upper portion between the anti-vibration springs 390, and is formed in a square column shape. A slight gap 540 is provided between the upper spacer 520 and the lower spacer 530. The lower spacer 530 is integrally formed by the square column-shaped clamped portion 531 and the rotation guide portion 532. The clamped portion 531 is sandwiched between the anti-vibration springs 390 at the lower portion of the anti-vibration spring 390, and the rotation guide portion 532 extends in the front-rear direction on the lower side of the anti-vibration spring 390. A through hole 520a in the left-right direction is formed in the intermediate portion in the height direction of the upper spacer 520. A guide hole 532a having an arc shape viewed from a side surface centering on the through hole 520a is formed in the rotation guide portion 532. The left and right widths of the upper spacer 520 and the left and right widths of the lower spacer 530 are respectively set to be equal to the left and right widths of the vibration isolating spring 390. Bolt through holes 520b and 531a penetrating in the front-rear direction are formed in the upper portion of the upper spacer 520 and the height of the sandwiched portion 531 of the lower spacer 530, respectively.

In FIG. 3, reference numeral 600 shows a bolt that sandwiches the partition 510 with an anti-vibration spring 390 having a spring washer and a flat washer. Further, the bolts 600 are coupled by the nut 601, and the isolation portion 510 is reliably held by the vibration-proof spring 390. The flange portions 610 of the respective bolts 600 and 600 pass through the through holes 399a and 390b of the vibration isolating spring 390 and the bolt through holes 520b and 531a.

Upper and lower bolt holes 303a and 303a are formed in the left and right portions of the front and rear lower portions of the balance weight 303 from the side surface toward the center in the left-right direction. The lower bolt holes 301a and 301a are formed on the left and right of the front and rear portions of the base portion 301 from the side surface toward the center in the left-right direction. The lower bolt holes 301a and 301a are arranged in pairs before and after each of the left and right portions of the front and rear portions of the base portion 301. The height positions of the lower bolt holes 301a, 301a are equal.

In Fig. 1, reference numerals 700, 710 respectively show upper and lower bolts for mounting the anti-vibration spring mechanism 500, and each of the bolts 700, 710 has a spring washer and a flat washer. The crotch portion 701 of the upper bolt 700 passes through the through hole 520a of the upper spacer 520, and the front end portion of the crotch portion 701 is inserted into the upper bolt hole 303a of the balance weight 303. The crotch portion 711 of the lower bolt 710 is passed through the guide hole 532a of the rotation guide portion 532, and the front end portion of the crotch portion 711 is inserted into the lower bolt holes 301a, 301a of the base portion 301. By tightening the bolts 700 and 710, the base portion 301 as the fixed portion is coupled to the balance weight 303 as the movable portion by the vibration-proof spring mechanism 500.

Further, in the linear feeder 300 of the present embodiment, the drive spring 380 and the vibration-proof spring 390 are slightly separated in the left-right direction, and are disposed to overlap each other in the vertical direction. The overlap in the up-and-down direction refers to a structure in which the upper end portion of the anti-vibration spring 390 is located at an intermediate position in the height direction of the drive spring 380, and the lower end portion of the anti-vibration spring 390 is located below the lower end portion of the drive spring 380. .

In the above configuration, the drive spring 380 for connecting the balance weight 303 and the movable weight 302 and the vibration-proof spring 390 (anti-vibration spring mechanism 500) for coupling the base portion 301 and the balance weight 303 are in the up and down direction. They are arranged on top of each other. According to this configuration, the length of the linear feeder 300 in the vertical direction can be reduced, and the linear feeder 300 can be made lower in height. In other words, the position of the center of gravity of the linear feeder 300 can be lowered, and therefore, when the movable portion vibrates, the vibration of the conveying member 305 is stabilized, and accordingly, stable supply of the components can be achieved.

However, in order to supply a more stable component, it is necessary to prevent the conveying member 305 from being subjected to a pitching phenomenon, a rolling phenomenon, or a vibration in the left-right direction. In order to avoid such a phenomenon, in the linear feeder 300 of the embodiment of the present invention, the inclination of the anti-vibration spring 390 (the anti-vibration spring mechanism 500) in the front-rear direction is adjusted without changing the inclination angle of the drive spring 380 in the front-rear direction. The corner is coming. That is, by adjusting the inclination angle of the anti-vibration spring 390 in the front-rear direction, the vibration of the drive spring 380 that changes according to the position of the center of gravity of the so-called sprung mass is adjusted to a desired vibration.

In general, the above phenomenon can be eliminated by the relationship between the position of the center of gravity of the linear feeder 300 and the inclination angle of the anti-vibration spring 390 depending on the shape, length, mounting position, and the like of the conveying member 305 to be used. In this case, by simultaneously loosening the bolt 700 and the bolt 710, the inclination angle of the anti-vibration spring mechanism 500 around the bolt 700 can be adjusted. The anti-vibration spring mechanism 500 can be rotated about the bolt 700 by the guide hole 532a being guided by the bolt 710 located in the guide hole 532a.

Further, the inclination angle of the vibration-proof spring 390 is an angle at which the above phenomenon does not occur, and the bolt 700 and the bolt 710 are tightened again. Such an operation is performed in accordance with the vibration-proof spring mechanism 500 in sequence or simultaneously, and can be selected in accordance with the state of occurrence of the above-described phenomenon.

Further, in the configuration of the above-described embodiment, the anti-vibration spring mechanism 500 provided at the four positions can be adjusted at each position. That is, it is possible to set the anti-vibration spring mechanisms 500 at four positions to different inclination angles. Further, the anti-vibration spring mechanism 500 is connected to the movable portion and the fixed portion at the left and right side portions, respectively.

In other words, the anti-vibration spring mechanism 500 is configured to be supported by the anti-vibration springs 390 that are separated in the left-right direction. Therefore, according to the position of the center of gravity of the entire linear feeder 300, it is possible to particularly easily prevent the conveying member 305 from generating unnecessary vibration and rolling in the left-right direction.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and scope of the invention. In Fig. 5 and Fig. 6, another embodiment of the anti-vibration spring is shown. In the above-described embodiment, the vibration-proof spring mechanism 500 is composed of the vibration-proof spring 390 and the partition portion 510 that is sandwiched by the vibration-proof spring 390 from the front-rear direction, and the vibration-proof spring 390 is disposed to have a predetermined width in the left-right direction. structure.

On the other hand, in the anti-vibration spring mechanism shown in FIG. 5, each of the anti-vibration spring mechanisms provided at the four positions is constituted by the anti-vibration spring 800. In this case, the anti-vibration spring 800 is integrally formed by the rotating portion 801 that is attached to the balance weight 303 by the bolt 700 and the rotation guide portion 802 that is fixed to the base portion 301. The rotation direction of the rotation portion 801 is the longitudinal direction, and the rotation guide portion 802 is the longitudinal direction in the front-rear direction. The anti-vibration spring 800 is formed in a T-shape that is vertically inverted as viewed from the side. The bolt 700 is passed through the upper end portion of the rotating portion 801 in the left-right direction, whereby the upper end portion of the rotating portion 801 is rotatably attached to the balance weight 303. A guide hole 802a is formed in the rotation guide portion 802. The guide hole 802a is formed in an arc shape centering on the bolt 700, and the pair of front and rear bolts 710 are passed through the guide hole 802a. Thereby, the rotation guide portion 802 can be guided and rotated by the bolt 710. The configuration of the other portions is the same as that of the embodiment shown in FIGS. 1 to 4, and thus the description thereof will be omitted. Further, in the embodiment shown in Fig. 5, in order to prevent the above-described phenomenon of the conveying member 305, the inclination angle can be adjusted in the vertical plane of the front-rear direction at the four positions of the linear feeder 300, in order to avoid the above phenomenon. , can make fine adjustments. The other operational effects are the same as those of the embodiment shown in FIGS. 1 to 4 .

In the anti-vibration spring mechanism shown in FIG. 6, each of the anti-vibration spring mechanisms provided at the four positions is constituted by the anti-vibration spring 900. The anti-vibration spring 900 is integrally formed by a rotating portion 901 that is attached to the balance weight 303 by a bolt 700 and a rotation guide portion 902 that is fixed to the base portion 301. The anti-vibration spring 900 is different from the anti-vibration spring 800 shown in FIG. 5 in that a plurality of slits 903 up to the upper portion of the rotation guide portion 902 are formed in the rotating portion 901. The bolt 700 is passed through the upper end portion of the rotating portion 901 in the left-right direction, whereby the upper end portion of the rotating portion 901 is rotatably attached to the balance weight 303. A guide hole 902a is formed in the rotation guide portion 902. The guide hole 902a is formed in an arc shape centering on the bolt 700, and a pair of front and rear bolts 710 are passed through the guide hole 902a. Thereby, the rotation guide portion 902 can be guided and rotated by the bolt 710. The other structure is the same as that of the embodiment shown in FIGS. 1 to 4 .

In the embodiment shown in FIG. 6, in order to prevent the above-described phenomenon from occurring in the conveying member 305, the inclination angle can be adjusted in the vertical plane of the front-rear direction at the four positions of the linear feeder 300, in order to avoid the above phenomenon, Make minor adjustments. The other operational effects are the same as those of the embodiment shown in FIGS. 1 to 4 .

The specific configuration of the other parts is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and scope of the invention. For example, in the above embodiment, the anti-vibration spring mechanism is disposed at the four corners of the linear feeder 300. However, the arrangement position of the anti-vibration spring mechanism can be disposed at two positions on either side of the left and right sides, or at two positions on either side of the left and right sides.

Further, in the above-described embodiment, the vibration-proof spring is disposed to be laterally offset with respect to the drive spring. However, a part or all of the vibration-proof spring may be overlapped with the drive spring in the left-right direction. In this case, in the embodiment shown in FIGS. 1 to 4 , it is possible to arrange the vibration-proof spring by shifting the center side in the left-right direction or to increase the left-right width of the vibration-proof spring.

300. . . Linear feeder

301. . . Base part

301a, 301a. . . Lower bolt hole

302. . . Movable weight

303. . . Balance weight

303a. . . Upper bolt hole

304. . . Vibration transmission unit

305. . . Conveying member

370. . . Link board

380. . . Drive spring

385. . . bolt

390. . . Anti-vibration spring

390a. . . Through hole

395. . . bolt

399a, 390b. . . Through hole

401. . . Fixed side core

402. . . Movable side core

403. . . Coil part

404. . . Electromagnetic core

500. . . Anti-vibration spring mechanism

510. . . Isolation department

520. . . Upper spacer

520a. . . Through hole

520b, 531a. . . Bolt through hole

530. . . Lower spacer

531. . . Clamped part

532. . . Guide hole

532a. . . Guide hole

540‧‧‧ gap

600‧‧‧ bolt

601‧‧‧ nut

610‧‧‧胴

700‧‧‧ bolts

701‧‧‧胴

710‧‧‧ bolt

711‧‧‧胴

800‧‧‧Anti-vibration spring

801‧‧‧Rotation

802‧‧‧Rotary Guide

802a‧‧‧ Guide hole

900‧‧‧Anti-vibration spring

901‧‧‧Rotation

902‧‧‧Rotary guide

902a‧‧‧ Guide hole

903‧‧‧slit

1 is a side view showing the overall configuration of a component supply device according to an embodiment of the present invention.

Fig. 2 is a rear elevational view as seen from the downstream side (rear side) in the conveying direction of the component supply device.

Fig. 3 is a front elevational view of the regulating member of the component supply device.

Fig. 4 is a rear elevational view showing the form of an anti-vibration spring of the component supply device.

Fig. 5 is a side view showing an embodiment of another anti-vibration spring mechanism.

Figure 6 is a side elevational view showing an embodiment of a further anti-vibration spring mechanism.

300. . . Linear feeder

301. . . Base part

302. . . Movable weight

303. . . Balance weight

304. . . Vibration transmission unit

305. . . Conveying member

370. . . Link board

380. . . Drive spring

385. . . bolt

390. . . Anti-vibration spring

395. . . bolt

401. . . Fixed side core

402. . . Movable side core

403. . . Coil part

404. . . Electromagnetic core

500. . . Anti-vibration spring mechanism

532. . . Guide hole

532a. . . Guide hole

600. . . bolt

700. . . bolt

710. . . bolt

Claims (2)

A component supply device including a fixing portion, a movable portion, a conveying member provided on the movable portion, and a vibration spring that connects the fixing portion and the movable portion, and the conveying provided on the movable portion by the vibration of the vibration spring The member vibrates and conveys the conveying member supplied to the conveying member, wherein the vibration spring is provided with the first and second vibration springs at intervals in the conveying direction of the conveying member, and the fixing portion and the movable portion are The first and second vibration springs are coupled to each other, and the movable portion includes a movable weight and a balance weight provided above the movable weight, and the movable weight is provided on an upper portion of the balance weight. The first and second vibration springs include a vibration-proof spring that couples the balance weight and the base portion of the fixed portion, and a connection between the movable weight and the balance weight. a drive spring that generates vibrations of the opposite phases, and at least one of the first and second vibration springs is configured to be capable of changing the tilting direction of the transport direction Angle, and provided separately from the position for the left-right direction perpendicular to the transport direction of the both sides, and the left and right ends of the movable portion outside position deviated toward the right and left direction. The component supply device according to the first aspect of the invention, wherein the upper portion of the anti-vibration spring is rotatably fixed to the upper portion via a support shaft The movable portion is described so that the tilt angle can be changed.