JP2002120934A - Sucking mechanism of article supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sucking mechanism of an article supply device capable of smoothly performing holding and releasing operation of a supply object article in respective processes for supplying an a article while surely holding the supply object article. SOLUTION: This sucking mechanism is provided with a rotary ring 5A integrally rotated by being coaxially installed on a rotary table 3A of an electronic part supply device 1 and a fixed plate 5B for slidingly contacting in a plane orthogonal to a rotary shaft with this rotary ring 5A. Plural grooves 5Ab respectively corresponding to a part holding part 4 are formed on the same circumference of a sliding contact surface of the rotary ring 5A, and grooves 5Bb communicated in the one-to-one relationship with the grooves 5Ab when positioning the part holding part 4 in a process position and communicated in a state of straddling the adjacent two grooves 5Ab when moving the part holding part 4 between process positions, are formed in a position corresponding to the respective process positions of the sliding contact surface of the fixed plate 5B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction mechanism for holding an article to be supplied in an article holding section of an article supply apparatus.

[0002]

Generally, in taping for supplying parts to an assembly line of a product or when assembling parts in an assembly line, the parts are taped at an appropriate position or assembled at an appropriate position of the product. As such, accurate positioning is required for the parts supplied.

For example, small electronic components such as semiconductor chips mounted on an electronic device are supplied to an assembly line by firstly taping (temporarily) in a state of being aligned in a predetermined direction on a strip-shaped ribbon or tape. Stopped).

[0004] For this reason, the supply of an electronic component, which is an object to be supplied, by the electronic component supply device is performed so that the electronic component is accurately fitted to a mounting portion when the electronic component is mounted on a printed circuit board or a semiconductor substrate on an assembly line. This is performed by performing various steps necessary for supply of correction of the position and orientation while moving the parts.

[0005] In the process for supplying the electronic parts, the holding state of the electronic parts must be maintained when the process operation is performed, and the holding state of the electronic parts must be temporarily released. Some of the components must be released or the components need to be released arbitrarily.Therefore, the electronic component supply device must ensure that the components are held when moving between processes. It is required that the operation of maintaining and releasing the holding state of the electronic component at each process position is performed while performing the operation so that the smooth supply of the electronic component is performed.

SUMMARY OF THE INVENTION The present invention has been made to satisfy the above-mentioned requirements for a device for supplying articles such as electronic components. That is, the present invention provides a suction mechanism of an article supply apparatus that can smoothly hold and release a supply target article in each step of article supply while securely holding the supply target article. The purpose is.

[0007]

According to a first aspect of the present invention, there is provided a suction mechanism of an article supply apparatus for holding an article to be supplied in an article holding member of the article supply apparatus and supplying the article to a required portion. A rotating mechanism that is coaxially attached to a rotating member that moves the article holding member along a circumferential process path in which a process for supplying articles is performed, and that rotates integrally with the rotating member. A plate member, and a fixed plate member fixed to a fixed portion of the article supply device and slidably in contact with the rotary plate member on a plane orthogonal to a rotation axis of the rotary plate member; A plurality of rotation-side grooves respectively corresponding to the plurality of article holding members attached to the rotating member are formed on the same circumference of the surface that comes into sliding contact with the member, and are in sliding contact with the rotating plate member of the fixed plate member. Surface When the article holding member is located at the process position at a position corresponding to each process position where the article supply process is performed on the circumference having the same diameter as the circumference on which the transfer-side grooves are arranged. When the article holding member moves between the process positions with the rotation of the rotating member, the article holding member and the rotating side groove corresponding to the article holding member located at each process position are communicated with the side groove portions in a one-to-one relationship. A fixed-side groove communicating with the rotating groove corresponding to the article holding member that is moved next while maintaining the communication state is formed, and the rotating groove is used to supply the article to be supplied to the corresponding article holding member. It is characterized in that it is connected to a suction part for holding by suction, and the fixed-side groove is connected to a suction device.

In the suction mechanism of the article supply apparatus according to the first aspect of the present invention, a plurality of article holding members attached to the rotation member rotate around the rotation member to perform a process for supplying the article. It is moved along the path and sequentially located at each process position.

When the rotating member is rotated, the rotating plate member attached so as to rotate integrally with the rotating member is rotated with respect to the fixed plate member fixed to the fixed portion of the article supply device. Rotate while sliding on a plane orthogonal to the rotation axis of the.

At this time, each fixed side groove formed in the sliding contact surface of the fixed plate member with the rotating plate member is formed in the sliding contact surface of the rotating plate member with the fixed plate member corresponding to each article holding member. The suction is connected to the fixed-side groove by maintaining the state in which each of the rotation-side grooves communicates with the fixed-side groove by straddling the two adjacent rotation-side grooves that are formed. Since the negative pressure by the device is always applied to the suction portion of the article holding member via the rotation side groove, the holding state of the supply target article is maintained while the article holding member moves between the respective process positions.

When the article holding member is located at each process position for supplying the article, each rotary side groove formed on the turntable member corresponding to each article holding member corresponds to each process position. The stationary side grooves formed in the stationary plate member are communicated with each other in a one-to-one relationship, whereby the load of the negative pressure on the suction portion of the article holding member is reduced by the rotation side grooves corresponding to the respective article holding members. This is performed only through the fixed-side groove portion that is communicated in a one-to-one relationship.

Therefore, according to the first aspect, even when the article holding member is moved between the respective process positions, the load state of the negative pressure by the suction device on the article holding member is always maintained, and the supply object is supplied. When the article holding member is located at the process position while the article can be held reliably,
Since the negative pressure by the suction device is applied only through the fixed side groove corresponding to the process position, the supply target articles corresponding to the process operation of each process by individually connecting and disconnecting the negative pressure to each fixed side groove. Can be smoothly held and released.

According to a second aspect of the present invention, in order to achieve the above object, the suction mechanism of the article supply apparatus according to the first aspect of the present invention provides a suction mechanism for the article to be supplied which has been released from the holding state by the article holding member. A switching member for connecting and disconnecting suction by the suction device is connected between the fixed side groove corresponding to the process position where the step operation is performed and the suction device.

According to the suction mechanism of the article supply apparatus according to the second aspect of the present invention, the process operation for the article to be supplied needs to be performed in a state where the holding by the article holding member is released. By operating the switching member connected between the corresponding fixed-side groove and the suction device, the negative pressure load by the suction device can be individually cut off, thereby providing the supply target corresponding to the process operation of each process. The article can be held and released smoothly.

According to a third aspect of the present invention, there is provided a suction mechanism for an article supply apparatus, wherein the rotary side groove portion extends in the circumferential direction of the rotary member in addition to the configuration of the first aspect. , And are arranged at equal angular intervals of the turntable member.

According to the suction mechanism of the article supply apparatus according to the third aspect of the present invention, the rotary groove portion extends in an arc shape along the circumferential direction of the rotary member, and is provided at equal angular intervals of the rotary disk member. By being formed, it is easy to maintain the communication state between the rotation-side groove portion and the fixed-side groove portion due to the rotation of the turntable member, whereby it is possible to reliably hold the supply target article by the article holding member. become able to do.

According to a fourth aspect of the present invention, there is provided a suction mechanism for an article supply apparatus, wherein the fixed-side groove portion extends in the circumferential direction of the rotating member in addition to the configuration of the first aspect. , And are arranged at equal angular intervals of the fixed platen member.

According to the suction mechanism of the article supply device according to the fourth aspect of the present invention, the fixed-side groove portion extends in an arc shape along the circumferential direction of the rotating member, and is positioned at an equal angular interval of the fixed plate member. By being formed, it is easy to maintain the communication state between the rotation-side groove portion and the fixed-side groove portion due to the rotation of the turntable member, whereby it is possible to reliably hold the supply target article by the article holding member. become able to do.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below in detail with reference to the drawings.

The present invention can be applied to an article supply apparatus for supplying various articles such as parts.
In addition, the present invention can be applied not only to the taping of parts but also to an apparatus for directly supplying parts to a product assembly line. Of the present invention applied to an electronic component supply device used for taping for the following will be described.

FIG. 1 is a plan view showing an example of an electronic component supply device (article supply device) provided with a suction mechanism according to the present invention.

In FIG. 1, a rotary drive unit 3 having a rotary table 3A that rotates around an axis in a horizontal plane is disposed substantially at the center of the base 2 of the electronic component supply device 1. Component holding parts 4 are respectively attached at eight equal angular intervals on the outer peripheral part of the table 3A, and further, the electronic parts to be supplied are sucked and held by the component holding part 4 at the center of the upper surface of the turntable 3A. Is attached.

Then, at the same angular interval on the circumference surrounding the rotary drive unit 3 on the base 2, the component suction units 11, 11 are arranged in a counterclockwise direction from the right side position of the rotary drive unit 3 in FIG. The suction detecting unit 12, the component direction detecting unit 13, the component direction correcting unit 14, the centering unit 15, the component checking unit 16,
A component supply unit 17 and a component supply confirmation unit 18 are provided.

A taping section 20 for temporarily fixing electronic components to a tape is disposed on the base 2 to the right of the component supply section 17 in FIG.

FIG. 2 is a side view showing the rotation drive unit 3. In FIG. 2, the rotary table 3A has a center attached to a rotation axis of a DD motor 3C supported upright on a motor base 3Ba of a support frame 3B fixed on the base 2, and has a horizontal orientation. It is rotatably supported.

A support plate 3D externally fitted to the DD motor 3C is provided at a fixed position spaced below the rotary table 3A.
Are four pillars 3B erected on the motor base 3Ba.
b, and is supported coaxially with the turntable 3A. Further, between the support plate 3D and the turntable 3A, an elevating plate 3E is disposed coaxially with the turntable 3A. It is supported to be able to move up and down freely.

An elevating mechanism 3F for supporting the elevating board 3E has a stepping motor 3Fa supported by a support frame 3B below the motor base 3Ba so that the rotation axis is oriented horizontally, and is attached to the rotation axis of the stepping motor 3Fa. FIG. 3 is arranged at a central position below the motor base 3Ba and rotated in a vertical plane.
, A lift plate 3Fc disposed between the cam 3Fb and the motor base 3Ba so as to be able to move up and down, and mounted on the lower surface of the lift plate 3Fc to rotate with respect to the outer peripheral surface of the cam 3Fb. A driven roller 3Fd that is movably contacted and four slide shafts 3Fe that are erected on the lift plate 3Fc and coaxially penetrate through the columns 3Bb of the support frame 3B and are connected to the lift plate 3E. It is configured.

The lifting mechanism 3F is moved up and down by rotating the cam 3Fb stepwise in both directions by a stepping motor 3Fa, lifting and lowering the lift plate 3Fc via a driven roller 3Fd, and sliding the slide shaft 3Fe in the axial direction. The board 3E is moved up and down.

The cam 3Fb of the lifting mechanism 3F
Are exchangeable with respect to the rotation axis of the stepping motor 3Fa.

FIG. 4 is a side view showing the component holder 4, and FIG. 5 is a front view thereof. 4 and 5, each of the component holders 4 attached to eight locations on the outer periphery of the turntable 3A has a support arm 4A that projects horizontally outward in the radial direction of the turntable 3A.
A vertically extending nozzle shaft 4B and a guide shaft 4C are slidably mounted along the axial direction.

The nozzle shaft 4B and the guide shaft 4C are connected by a holder 4D whose upper end is located above the support arm 4A, and whose lower end is located below the support arm 4A. Holder 4
They are connected by E and are integrally slid up and down with respect to the support arm 4A.

On the lower end surface of the nozzle shaft 4B,
As will be described later, a nozzle 4Ba for sucking and holding the chip-shaped electronic component in a horizontal state is provided, and a suction hose connecting portion 4Bb is provided at the upper end.

The holder 4 located above the support arm 4A
D and a supporting arm 4A, a pair of tension springs 4F disposed on each side are interposed, and the nozzle shaft 4B and the guide shaft 4C are connected to the supporting arm 4A.
A is urged in the direction of sliding downward with respect to A.

At the inner end (left end in FIG. 4) of the holder 4E located below the support arm 4A, a cam follower 4G is provided around a horizontal axis along the longitudinal direction of the support arm 4A. It is rotatably mounted.

As shown in FIGS. 1 and 2, the component holding portion 4 rotates the inner end (left end in FIG. 4) of the support arm 4A at each of the eight mounting positions of the turntable 3A. Fixed on the upper surface of the table 3A,
The cam follower 4G attached to the inner end of the holder 4E is mounted on the outer peripheral surface of the lift plate 3E of the rotary drive unit 3 so that its longitudinal direction extends radially outward of the rotary table 3A. It is located at a position where it touches and turns on this lift board 3E.

The suction hose 6 connected to the suction mechanism 5 is connected to the suction hose connecting portion 4Bb of the nozzle shaft 4B.
Are connected.

As shown in a one-side sectional view of FIG. 6, the suction mechanism 5 is coaxially arranged on the upper surface of the center of the turntable 3A and fixed so as to rotate integrally with the turntable 3A. 5A and this rotating ring 5
A fixed plate 5 which is coaxially disposed on A and has a central portion non-rotatably and vertically movable connected to a fixed portion of the DD motor 3C and a lower surface slidingly contacting the upper surface of the rotating ring 5A.
B, a support plate 5C which is coaxially arranged at an interval above the fixed plate 5B and whose center is fixed to a fixed portion of the DD motor 3C, and an upper end is fixed to a lower surface of the support plate 5C and an upper end is formed. A plurality (four in the example shown) of shafts 5D interposed so that the part is fitted on the upper surface of the fixed plate 5B so as to extend vertically between the support plate 5C and the fixed plate 5B; The fixed plate 5 is fitted to the shaft 5D so as to be fitted to the outside.
B and the fixed plate 5 interposed between the support plate 5C.
And a compression spring 5E for urging B downward.

FIG. 7 is a side view showing one side of the rotating ring 5A, and FIG. 8 is a plan view of the rotating ring 5A.

7 and 8, the rotating ring 5
A is a suction hose connecting portion 5A to which a suction hose 6 (see FIG. 2) is connected at eight equal angular intervals on the outer periphery thereof.
a is formed.

Eight arc-shaped grooves 5Ab arranged on the same circumference are formed at equal intervals at positions on the upper surface of the rotary ring 5A corresponding to the suction hose connecting portions 5Aa. Suction hose connection part 5A corresponding to each groove 5Ab
a through the communication holes 5Ac.

FIG. 9 is a bottom view showing the fixing plate 5B, and FIG. 10 is a side sectional view of the rotating ring 5A.
9 and 10, the fixed plate 5B has suction hose connecting portions 5Ba to which suction hoses 7 (see FIG. 6) connected to a vacuum pump (not shown) are connected at eight equal angular intervals on the upper surface thereof. Each is formed.

On the bottom surface of the fixed plate 5B, eight arc-shaped grooves 5Bb arranged at equal intervals on the circumference having the same diameter as the circumference on which the grooves 5Ab of the rotating ring 5A are arranged are formed. Each groove 5Bb is connected to a corresponding suction hose connecting portion 5Ba via a communication hole 5Bc.

A portion surrounding the groove 5Bb on the outer periphery of the bottom surface of the fixed plate 5B is provided with a ring-shaped sealing material 5B.
Bd is stuck.

As shown in FIG. 12, each groove 5Bb of the rotating ring 5A is in contact with each groove 5Bb of the rotating ring 5A when the rotating ring 5A is positioned at a process position as described later with its rotation. When the rotating ring 5A rotates between the respective process positions, as shown in FIG. 13, each groove 5Bb straddles two adjacent grooves 5Ab of the rotating ring 5A. Each is communicated in a state.

The seal between the groove 5Bb and the groove 5Ab is held by a sealing material 5Bd, and the fixed plate 5B is rotated by a compression spring 5E interposed between the fixed plate 5B and the support plate 5C. By being urged in the direction pressed by 5A, the degree of sealing is ensured.

Each suction hose connecting portion 5A of the rotating ring 5A
The other end of the suction hose 6 whose one end is connected to the suction hose connection part 4Bb of the nozzle shaft 4B of the component holding part 4 is connected to a.

Suction hose connection part 5B of fixed plate 5B
A suction hose 7 connected to a vacuum pump (not shown) is connected to the suction pipe 7 from above while being inserted into and supported by a through hole formed in the support plate 5C.

The suction hose 7 connected to the suction hose connecting portion 5Ba and the groove 5Bb formed corresponding to the component confirmation portion 16 and the component supply portion 17 is not shown. A solenoid valve is attached, and the suction by the suction hose 7 is turned on / off.

The electronic component suction unit 11 is provided with an electronic component P as shown in FIG. 11 which is fed from an electronic component feeding unit 11A arranged on the upper right portion of FIG.
This is a mechanism for sucking the components one by one into the component holding unit 4. As can be seen from FIG. 1, the components in which the component feeding lines 11 </ b> B from the electronic component feeding unit 11 </ b> A The electronic component P extends below the holding part 4.
Is supplied to a suction position described later.

The suction detecting section 12 is a mechanism for detecting whether or not the electronic component P is sucked and held by the component holding section 4 in the electronic component sucking section 11.
A, the electronic component P is supplied to the nozzle 4Ba of the component holding unit 4.
Is held or not.

The component direction detecting unit 13 is a component
1 is a mechanism for detecting the direction of the electronic component P held by the component holding unit 4 and includes a camera unit 13A, and a nozzle 4B photographed by the camera unit 13A.
The orientation of the electronic component P is detected by analyzing the image of the electronic component P held in a by the image analysis program of the control device.

The component direction correcting unit 14 is provided with the electronic component suction unit 1.
1 is a mechanism for correcting the direction of the electronic component P to be aligned with the set direction when the direction of the electronic component P sucked by the component holding unit 4 is different from the set direction.
A component holder 14A that is rotated in both forward and reverse directions by a stepping motor (not shown) is provided. The electronic component P held by the component holding unit 4 is locked to the component holder 14A and integrally rotated, whereby the electronic component is rotated. The direction of the component P is corrected.

The centering section 15 is a part direction correcting section 1
4 is a mechanism for centering the electronic component P whose direction has been corrected in the component holding unit 4 while holding the electronic component P in the component holding unit 4. When the nozzle 4Ba of the component holding unit 4 is positioned at the lowered position, a cam (not shown) The electronic component P held by the nozzle 4Ba is urged from all sides by the slide plate 15A operated by the structure, so that the holding position of the electronic component P with respect to the nozzle 4Ba is corrected (centered). I have.

The component confirmation unit 16 is a mechanism for detecting whether or not the electronic component P has fallen from the component holding unit 4 or is attracted to the component holding unit 4 in a correct posture after centering in the centering unit 15. Optical fiber sensor 16
By A, the presence / absence and posture of the electronic component P held by the nozzle 4Ba of the component holding unit 4 are detected.

The component checking unit 16 includes a discard box (not shown) for dropping an electronic component P that is not held in the attitude set in the nozzle 4Ba of the component holding unit 4.

The component supply section 17 is a section for performing a seventh step of mounting the electronic component P sucked by the component holding section 4 on an emboss belt for taping.

As shown in FIG. 1, the component supply section 17 is provided at a position directly below the nozzle shaft 4B of the component holding section 4 located above the component supply section 17 with a tangent to the rotation direction of the turntable 3A. An emboss belt 17A is arranged so as to travel along the direction.

The embossed belt 17A is designed to run endlessly from the left side in FIG. 1 in the direction of the taping portion 20. The surface of the embossed belt 17A has substantially the same shape as the outer shape of the electronic component P, and will be described later. The fitting holes 17Aa into which the electronic components P are fitted are formed at regular intervals along the running direction of the belt and such that the longitudinal direction is oriented in the width direction of the emboss belt 17A.

The emboss belt 17A is moved by a stepping motor (not shown)
The traveling drive is performed so that the fitting holes 17Aa are sequentially positioned directly below the nozzle shaft 4B of the component holding unit 4 positioned above.

The component supply unit 17 includes a component on a frame 17B that forms a traveling path of the emboss belt 17A at a position immediately downstream of a supply position of the electronic component P to the emboss belt 17A by the component holding unit 4. It crosses the upper side of the traveling path of the supply unit 17 at right angles, and faces the upper surface of the emboss belt 17A and the upper surface of the electronic component P fitted in the fitting hole 17Aa of the emboss belt 17A with a slight gap therebetween. The supply error detection plate 17C is placed at a position above the upper surface of the frame 17B so as to be freely separated from the upper surface.

The end face of the supply error detecting plate 17C on the downstream side in the running direction of the emboss belt 17A is connected to the cover plate 17 fixed on the frame 17B.
D, and is positioned at the above-mentioned fixed position on the frame 17B by engaging with a projection (not shown) provided on the frame 17B.

Further, a supply error detecting plate 17C is provided on the frame 17B with the emboss belt 17A interposed therebetween.
Pair of detection heads 1 arranged on both sides of
An optical fiber sensor 17E having 7Ea and 17Eb is attached.

The pair of detection heads 17Ea and 17Eb are mounted at a position where the path of the light beam irradiated therebetween passes just above the upper surface of the supply error detection plate 17C at a fixed position.

The component supply confirming section 18 is a mechanism for detecting the electronic component P held by the component holding section 4, and is provided by the optical fiber sensor 18A.
In 7, the electronic component P which is not supplied and is held by the nozzle 4Ba is detected.

The taping section 20 attaches an adhesive tape T to an embossed belt 17A running from the component supply section 17 while the electronic component P is fitted into the fitting hole 17Aa. The fitted electronic component P is taped (temporarily fixed) to the adhesive tape T.

Next, the operation of the suction mechanism will be described together with the component supply operation of the electronic component supply device 1.

In the component supply of the electronic component supply device 1, the rotary drive 3 drives the DD motor 3C to rotate the rotary table 3A in steps of 45 degrees at preset time intervals. Each of the component holding units 4 arranged on the outer periphery includes an electronic component suction unit 11, a suction detection unit 12, a component direction detection unit 13, a component direction correction unit 14, a centering unit 15, a component confirmation unit 16,
It is sequentially performed by sequentially moving to a position facing the component supply unit 17 and the component supply confirmation unit 18 and going through each process.

At this time, while each component holder 4 is moving between each process position by the step rotation of the rotary table 3A, as shown in FIG. Are positioned with the part with the largest diameter right above.

As a result, the portion of the cam 3Fb having the largest diameter comes into contact with the driven roller 3Fd, and the lift plate 3E is positioned at the raised position via the lift plate 3Fc and the slide shaft 3Fe (shown in FIG. 2). In this state, the cam followers 4G of the component holders 4 rolling on the lift board 3E are supported at the raised position, and the nozzle shaft 4B of the component holder 4 is held at the raised position.

Each of the component holding units 4 includes an electronic component suction unit 11 and a suction detection unit 12, a component direction detection unit 13, a component direction correction unit 14, a centering unit 15, and a component confirmation unit 1.
6, the stepping motor 3Fa of the elevating mechanism 3F is synchronized with the drive of the DD motor 3C when positioned at a position facing the component supply unit 17 and the component supply confirmation unit 18, respectively.
Is driven, the cam 3Fb is rotated, and this cam 3Fb
Are positioned so that the portion with the smaller diameter of the is located directly above.

During the rotation of the cam 3Fb, the lift plate 3Fc and the lift plate 3E descend as the driven roller 3Fd descends along the cam surface of the cam 3Fb. When the nozzle shaft 4B is lowered together with the cam follower 4G by the urging force of the nozzle 4F, the nozzle 4 at the lower end of the nozzle shaft 4B
Ba is located at each operation position in each section as described later.

When the set time elapses after the above-described lowering operation, the elevating mechanism 3F is driven in the opposite direction, and the cam 3Fb is rotated in the opposite direction. By returning to the state located in
The lift plate 3E ascends via the driven roller 3Fd, the lift plate 3Fc, and the slide shaft 3Fe to return to the original ascending position, so that the cam follower 4G is lifted, and the nozzle shaft 4B of each of the component holders 4 becomes a tension spring. It is raised against 4F.

Then, in synchronization with the lifting operation of the lifting mechanism 3F, the DD motor 3C is driven to rotate the rotary table 3A.
Is rotated stepwise, whereby each component holder 4 is moved to the next process position.

The above-described synchronous control of the driving of the DD motor 3C and the stepping motor 3Fa is performed by a control device (not shown).

Further, during the component supply operation of the electronic component supply device 1, the grooves 5B of the fixing plate 5B of the suction mechanism 5 are provided.
b, each suction hose 7 (FIGS. 6, 9, 1)
0) is connected, and a vacuum pump (not shown) is driven to perform suction by each suction hose 7.

When the driving of the electronic component supply device 1 as described above is started, the electronic component suction unit 11 in which the first step of the component supply operation is performed, the electronic component P loaded into the electronic component feeding unit 11A. Are arranged in a line by the centrifugal force generated in the electronic component feeding section 11A, and are fed toward the suction position by the component holding section 4 along the component feeding line 11B.

At this time, the electronic component P fed through the component feed line 11B is in a face-up state (a direction in which the terminal Pa faces downward in FIG. 11), and its longitudinal direction is along the feeding direction. Are aligned in the orientation.

When the component holding unit 4 is positioned at the suction position by the component holding unit 4 (hereinafter, referred to as a first process position) by the step rotation of the turntable 3A at the first process position, as described above. The height at which the nozzle shaft 4B is lowered by the operation of the elevating mechanism 3F, and the nozzle 4Ba provided at the lower end thereof is almost in contact with the upper surface of the leading electronic component P fed by the component feed line 11B. Position.

At this time, the fixing plate 5B of the suction mechanism 5
5B formed corresponding to the electronic component suction portion 11 of FIG.
b and a groove 5A formed in the rotary ring 5A corresponding to the component holding portion 4 located at the first process position at that time.
b is communicated in a one-to-one correspondence (see FIG. 12), and the nozzle 4Ba of the component holding part 4 has the nozzle shaft 4B and the suction hose 6, the groove 5Ab of the rotating ring 5A, the groove 5Bb of the fixed plate 5B, and the suction hose. By performing suction by the vacuum pump via 7, the leading electronic components P fed to the first process position are sucked one by one by the nozzles 4Ba of the component holding unit 4 at the lowered position.

Thereafter, the raising / lowering mechanism 3F of the rotary drive unit 3 performs the above-described raising operation, whereby the nozzle shaft 4B of the component holding unit 4 is raised, and the electronic component P sucked by the nozzle 4Ba is removed from the component. Lifted from the feed line 11B.

Then, as described above, the rotary table 3A is driven by the driving of the DD motor 3C of the rotary drive unit 3 as described above.
Is step-rotated, the component holding unit 4 is moved from the first process position to a position facing the next suction detection unit 12 (hereinafter, a second process position) and positioned.

Even when the component holder 4 is moved by the step rotation of the rotary table 3A, the groove 5Ab of the rotating ring 5A of the suction mechanism 5 is always straddled between the corresponding two grooves 5Bb of the fixed plate 5B. By communicating with the suction hose 7 (see FIG. 13), suction at the nozzle 4Ba is maintained.

When the component holder 4 moved from the first process position is positioned at the second process position, the nozzle shaft 4B is lowered by the lowering operation of the raising / lowering mechanism 3F of the rotary drive unit 3 as described above. If the electronic component P is held by the nozzle 4Ba, the electronic component P
Is detected by the optical fiber sensor 12A. At this time, the suction by the suction mechanism 5 is maintained.

After the detection of the electronic component P, the nozzle shaft 4B is raised by the lifting operation of the above-mentioned lifting mechanism 3F of the rotary drive unit 3, and further, the component holding unit 4 is moved by the step rotation of the rotary table 3A. It is moved and positioned from the two process positions to a position facing the next component direction detection unit 13 (hereinafter, a third process position) while maintaining the suction state.

In this third process position, when the component holder 4 moved from the second process position is positioned,
The nozzle shaft 4B is lowered by the lowering operation of the elevating mechanism 3F of the rotary drive unit 3, and the electronic component P sucked by the nozzle 4Ba is positioned at the photographing position by the component direction detection unit 13.

Then, the bottom surface (see FIG. 11) of the electronic component P is photographed by the camera unit 13A of the component direction detecting unit 13, and its image signal is transmitted to a control device (not shown), and the image is analyzed by an image analysis program. Thus, the front and rear directions of the electronic component P sucked by the nozzle 4Ba are detected. At this time, the suction by the suction mechanism 5 is maintained.

After detecting the direction of the electronic component P, the nozzle shaft 4B is raised by the lifting operation of the rotary drive unit 3 by the lifting mechanism 3F, and further, by the step rotation of the rotary table 3A, the component holding unit 4 is moved to the third position. It is moved from the process position to a position facing the next component direction correcting unit 14 (hereinafter, a fourth process position) while maintaining the suction state, and positioned.

In this fourth process position, when the component holder 4 moved from the third process position is positioned,
The nozzle shaft 4B is lowered by the lowering operation of the elevating mechanism 3F of the rotary drive unit 3, and the electronic component P sucked by the nozzle 4Ba is locked by the component holder 14A of the component direction correcting unit 14.

Then, the component holder 14A is rotated 90 degrees in a direction corresponding to the holding direction of the electronic component P detected by the component direction detector 13 as described later, so that the holding direction of the electronic component P is changed. Is corrected to face the set direction.

At this time, if there is a possibility that the upper surface of the electronic component P coming into contact with the nozzle 4Ba may be damaged during rotation, it corresponds to the component direction correcting section 14 of the fixed plate 5B of the suction mechanism 5. An electromagnetic valve is attached to the suction hose 7 connected to the groove 5Bb, and the electronic component P is attached to the component holder 14.
By stopping the suction by the nozzle 4Ba during the rotation by C, the electronic component P can be separated from the nozzle 4Ba.

After the correction of the holding direction of the electronic component P is performed as described above, the nozzle shaft 4B is raised by the lifting operation by the lifting mechanism 3F of the rotary drive unit 3, and further, the step rotation of the rotary table 3A is performed. Accordingly, the component holding unit 4 moves the next centering unit 15 from the fourth process position.
Is moved to a position (hereinafter, referred to as a fifth process position) while maintaining the suction state, and positioned.

In the fifth process position, when the component holder 4 moved from the fourth process position is positioned,
The nozzle shaft 4B is lowered by the lowering operation of the elevating mechanism 3F of the rotary drive unit 3, and the electronic component P sucked by the nozzle 4Ba is positioned at the centering position of the centering unit 15.

At this time, if there is a possibility that the upper surface of the electronic component P in contact with the nozzle 4Ba may be damaged during centering, the groove corresponding to the centering portion 15 of the fixing plate 5B of the suction mechanism 5 is provided. By attaching an electromagnetic valve to the suction hose 7 connected to 5Bb and stopping the suction by the nozzle 4Ba only while the electronic component P is centered, the electronic component P is separated from the nozzle 4Ba. You can also.

After the centering by the centering portion 15, the electronic component P is raised together with the nozzle shaft 4B by the raising operation by the lifting mechanism 3F of the rotary driving portion 3, and further, the component holding portion is rotated by the step rotation of the rotary table 3A. 4 is moved and positioned from the fifth process position to a position facing the next component confirmation unit 16 (hereinafter, a sixth process position) while maintaining the suction state.

When the component holder 4 moved from the fifth process position is positioned at the sixth process position,
The nozzle shaft 4B is lowered by the lowering operation of the raising / lowering mechanism 3F of the rotary drive unit 3, and the optical fiber sensor 16A
As a result, it is detected whether or not the electronic component P is held by the nozzle 4Ba and, if the electronic component P is held, whether or not the holding attitude is the set attitude.

At this time, if the control device detects that the electronic component P is not held in the set posture, it connects to the groove 5Bb corresponding to the component confirmation portion 16 of the fixed plate 5B of the suction mechanism 5. The nozzle 4Ba is closed by closing the solenoid valve attached to the suction hose 7
The electronic component P adsorbed on the device is dropped into the disposal box and discarded.

After confirming the suction state of the electronic component P, the nozzle shaft 4B is raised by the lifting operation of the rotary drive unit 3 by the lifting mechanism 3F.
By the step rotation of A, the component holding unit 4
It is moved and positioned from the process position to a position facing the next component supply unit 17 (hereinafter, a seventh process position) while maintaining the suction state.

When the component holder 4 moved from the sixth process position is positioned at the seventh process position,
The nozzle shaft 4B is lowered by the lowering operation of the raising / lowering mechanism 3F of the rotary drive unit 3, and the nozzle 4Ba is positioned at the position where the electronic component P is inserted into the fitting hole 17Aa of the emboss belt 17A. Fixing plate 5B
The solenoid valve of the suction hose 7 connected to the groove 5Bb corresponding to the component supply unit 17 is closed by the control of the control device.

As a result, the component holding portion 4 located at the seventh process position is attached to the nozzle 4Ba by the electronic component P.
When the electronic component P held by the nozzle 4Ba is closed by closing the electromagnetic valve of the suction hose 7, the electronic component P held by the nozzle 4Ba is placed in the fitting hole 17Aa of the emboss belt 17A located immediately below. (See FIGS. 1 and 12).

When the component holder 4 is detached from the nozzle 4Ba, the electronic component P is not completely inserted into the fitting hole 17Aa of the emboss belt 17A, and a supply error occurs. Of the electronic component P project upward from the inside of the fitting hole 17Aa.
The supply error detection plate 17C is lifted by the portion protruding from Aa, and the optical fiber sensor 17
The path of the light beam irradiated between the pair of detection heads 17Ea and 17Eb of E is blocked, so that the electronic component P
Is not completely accommodated in the fitting hole 17Aa, that is, occurrence of a supply error is detected by a control device (not shown) connected to the optical fiber sensor 17E.

When the control device detects this supply error, it stops driving the electronic component supply device 1 so that the electronic component P that is not completely accommodated in the fitting hole 17Aa performs the subsequent process. This prevents the occurrence of trouble in the taping unit 20 by being moved to the taping unit 20.

The component supply unit 17 of the electronic component P as described above
Is normally performed, the nozzle shaft 4B is raised by the raising operation by the lifting mechanism 3F of the rotary drive unit 3, and the component holding unit 4 is moved to the seventh process position by the step rotation of the rotary table 3A. Is moved to a position (hereinafter, referred to as an eighth process position) facing the next component supply confirmation unit 18 and positioned.

Then, at this eighth process position, the electronic component P is detected by the optical fiber sensor of the component supply confirmation unit 18.
When it is detected that is held by the component holding unit 4, each process operation performed after the next first process position is canceled.

As described above, each of the component holders 4 is moved from the first to the eighth by the step rotation of the turntable 3A.
The electronic components P are fitted in the fitting holes 17Aa of the emboss belt 17A of the component supply unit 17 in a state where they are aligned in the same direction.

The electronic components P fitted into the fitting holes 17Aa of the emboss belt 17A are sequentially sent into the taping section 20 as the emboss belt 17A runs, and the adhesive tape is applied to the tape section 20 at the taping section 20. Taped at T (see FIG. 1).

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of an embodiment of an electronic component supply device to which a suction mechanism according to the present invention is attached.

FIG. 2 is a side view showing a drive mechanism of the electronic component supply device.

FIG. 3 is a side view showing a cam of the driving mechanism.

FIG. 4 is a side view showing a component holding unit of the electronic component supply device.

FIG. 5 is a front view of the component holding unit.

FIG. 6 is a one-side sectional view showing an example of an embodiment of a suction mechanism according to the present invention.

FIG. 7 is a one-side sectional view showing a rotating ring of the suction mechanism.

FIG. 8 is a bottom view of the rotating ring.

FIG. 9 is a bottom view showing a fixing plate of the suction mechanism.

FIG. 10 is a sectional view taken along line XX of FIG. 9;

FIG. 11 is a bottom view showing an electronic component to be supplied by the electronic component supply device.

FIG. 12 is an explanatory view showing a stopped state of the suction mechanism at a process position.

FIG. 13 is an explanatory view showing a state of movement of the suction mechanism between process positions.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Electronic component supply apparatus (article supply apparatus) 2 ... Base 3 ... Rotation drive part 3A ... Rotary table (rotary member) 3C ... DD motor 3E ... Elevating board 3F ... Elevating mechanism 3Fa ... Stepping motor 3Fb ... Cam 3Fc ... Lift Plate 3Fd: driven roller 3Fe: slide shaft 4: component holding unit (article holding member) 4A: support arm 4B: nozzle shaft 4Ba: nozzle (suction unit) 4F: tension spring 4G: cam follower 5: suction mechanism 5A: rotating ring ( 5Aa ... Suction hose connecting part 5Ab ... Groove (rotating side groove part) 5Ac ... Communication hole 5B ... Fixed plate (fixed disk member) 5Ba ... Suction hose connecting part 5Bb ... Groove (fixed side groove part) 5Bc ... Communication hole 5Bd ... Seal material 6 ... Suction hose 7 ... Suction hose 11 ... Part suction part 11A ... Part Feeding part 11B ... Component feeding line 12 ... Suction detecting part 12A ... Optical fiber sensor 13 ... Part direction detecting part 13A ... Camera part 14 ... Part direction correcting part 14A ... Part holder 15 ... Centering part 15A ... Slider plate 16 ... Part Confirmation unit 16A Optical fiber sensor 17 Component supply unit 17A Emboss belt 17Aa Fitting hole 17B Frame 17C Supply error detection plate 17D Cover plate 17E Optical fiber sensor 17Ea, 17Eb Detection head 18 Component supply Confirmation part 18A… Optical fiber sensor P… Electronic parts (supplied articles)

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Koji Imagawa Inventor 6-1-1, Fujimi, Tsurugashima-shi, Saitama F-term in Pioneer F.A. Co., Ltd. KA01 KC01 KC05 KC07 KC10 KC17 KC18 KE06

Claims (4)

[Claims] 1. A suction mechanism for holding an article to be supplied on an article holding member of an article supply device and supplying the article to a required portion, wherein a circumferential step in which a step for supplying the article is performed. A rotatable member mounted coaxially with the rotatable member to be moved along the path and rotated integrally with the rotatable member; and a rotatable member fixed to a fixed portion of the article supply device and being fixed to the rotatable member. A fixed plate member that is slid in contact with a plane orthogonal to the rotation axis; and a plurality of article holding members attached to the rotation member on the same circumference of a surface of the rotator member that is slid in contact with the fixed plate member. A plurality of rotation-side grooves corresponding to each of the rotation-side grooves are formed, and the article is supplied on the circumference of the same diameter as the circumference on which the rotation-side grooves on the surface of the fixed plate member that are in sliding contact with the rotation plate member are arranged. Process When the article holding member is located at the process position, the article holding member is communicated in a one-to-one relationship with the rotating groove when the article holding member is located at the process position, and the article holding member moves between the process positions as the rotating member rotates. In this case, the fixed side groove communicated with the rotating groove corresponding to the article holding member that is moved next while maintaining the communication state with the rotating groove corresponding to the article holding member located at each process position. Wherein the rotation-side groove is connected to a suction unit that suctions and holds the supply target article of the corresponding article holding member, and the fixed-side groove is connected to a suction device. Suction mechanism of the article supply device to perform. 2. A suction device for connecting and disconnecting suction by a suction device between a fixed-side groove portion corresponding to a process position where a process operation is performed on a supply target article released from a holding state by the article holding member and a suction device. The suction mechanism of the article supply device according to claim 1, wherein a switching member is connected. 3. The suction mechanism of the article supply device according to claim 1, wherein the rotation-side groove has an arc shape extending in a circumferential direction of the rotation member, and is arranged at an equal angular interval of the rotation disk member. . 4. The suction mechanism of the article supply device according to claim 1, wherein the fixed-side groove portion has an arc shape extending in a circumferential direction of the rotating member, and is arranged at equal angular intervals on the fixed plate member. .