JPH104290A - Part feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a part feeder which is capable of transferring a part smoothly. SOLUTION: Permanent magnets M are arranged at a regular interval under a region of a belt 7 which is used for transferring a part P, and the part P transferred by the belt 7 is attracted by the magnetic force of the permanent magnets M to be brought into close contact with the surface of the belt 7. Therefore, even if the contact resistance of the part P in transit to a guide groove 5a is applied to the part P, the parts P are surely prevented from being levitated or tilted and smoothly transferred as kept proper in arrangement. Moreover, a permanent magnet M is not provided under the belt 7 at a part outlet position, so that the part P is not prevented from being led onto the belt 7 from a vertical passage 5b and from being turned over by the magnetic force of the magnet M with the movement of the belt 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supplying apparatus for supplying chip-shaped components in a loose state in a line in a predetermined direction.

[0002]

2. Description of the Related Art Conventionally, Japanese Patent Application Laid-Open No. 6-232596 discloses a component supply apparatus of this type.

[0003] The component supply device disclosed in the publication discloses a storage box for storing loose chip-shaped components (hereinafter simply referred to as "components"), a component extraction tube inserted vertically through the lower surface of the storage box. A mechanism for moving the component take-up tube up and down, a component carry tube extending downwardly in communication with the component take-out tube, and a component disposed at the end position of the component carry tube and transporting components discharged from the component carry tube. A belt, a mechanism for intermittently moving the belt at a predetermined pitch, a grooved cover for aligning components on the belt, a stopper for stopping components conveyed by the belt at a predetermined position, and a stopper at the same position as the component stop position And a mechanism for displacing it to a position distant from the camera.

In this component supply device, the components in the storage box are moved in a predetermined direction by moving the component extraction tube up and down.
The parts can be taken into the individual part take-out tube, discharged through the parts conveying tube onto the belt, and the discharged parts can be conveyed by the belt in the stopper direction. Further, after the transport component is stopped by the stopper, the stopper is displaced forward so as to be separated from the leading component, so that the force (pinching force) applied to the leading component among the components arranged in a line on the belt can be released. Like that.

[0005]

The parts handled by this kind of parts supply apparatus are small in size and extremely light in weight, so that only a small contact resistance or the like is added to the parts being conveyed. There is a problem that the parts are not properly satisfactorily conveyed due to the rise or inclination of the parts, and the arrangement of the conveyed parts is broken.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a component supply device capable of carrying out components in a satisfactory manner.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a hopper for accommodating chip-shaped components in a loose state, and a component deriving unit for taking one component in the hopper in a predetermined direction and guiding it downward. In a component supply device including a passage and a component transport path that transports a component derived from the component lead-out path in a predetermined direction, a magnet corresponding to a component transport area excluding a component lead-out position is provided and transported by the magnetic force of the magnet. The main feature is that the components are brought into close contact with the component transport path.

According to the present invention, a magnet is provided corresponding to the component transport area excluding the component lead-out position, and the transport component is brought into close contact with the component transport path by the magnetic force of the magnet. Can be conveyed in a predetermined direction while being in close contact with the component conveying path. Accordingly, even when contact resistance or the like is applied to a part being conveyed, it is possible to prevent the part from rising, tilting, etc., and to keep the state of arrangement of the parts conveyed properly. Further, since there is no corresponding magnet at the component lead-out position, the magnetic force does not hinder the component lead-out from the component lead-out path to the component transport path.

[0009]

FIG. 1 is a side view of a component supply apparatus according to the present invention, wherein 1 is a frame, 2 is a hopper, 3 is a fixed pipe, 4 is a movable pipe, and 5 is a component guide. , 6 is a belt guide, 7 is a belt, 8 is a pair of pulleys in front and rear, 9 is a component stopper, 10 is a pipe vertical movement mechanism,
11 is a belt feed mechanism, and 12 is a stopper displacement mechanism.

As shown in FIGS. 1 and 3, the hopper 2 has a storage chamber 2a, a cover plate 2b for opening and closing the upper end opening of the storage chamber 2a, and a movable plate formed through the bottom of the storage chamber 2a. A circular sliding hole 2c for a pipe is provided, and the side surface thereof is detachably fixed to the frame 1.

A chip-shaped component P (hereinafter, simply referred to as a component P) having a cylindrical, prismatic, or flat prismatic shape as shown in FIG. One kind of a component P represented by an inductor, a chip resistor, or the like is stored in a large number in a loose state. The component P accommodated in the hopper 2 moves by its own weight toward the sliding hole 2c along the bottom slope with the component supply.

As shown in FIGS. 3 and 4, the fixed pipe 3 is made of a thin circular pipe material having a predetermined length, and has a lower end fixed to the component guide 5, and the upper end thereof is higher than the upper end of the sliding hole 2c. The sliding hole 2c is positioned so as to be slightly lower.
It is vertically inserted and arranged at the center position in the inside. The inner diameter of the fixed pipe 3 is slightly larger than the maximum length of the end face of the component P to be supplied, and the component P in the storage chamber 2a is taken into the upper end opening of the fixed pipe 3 in the longitudinal direction, and the pipe remains in the same direction. It falls under its own weight and is guided downward.

As shown in FIGS. 3 and 4, the movable pipe 4 has an outer diameter slightly smaller than the sliding hole 2c and a fixed pipe 3 as shown in FIG.
Is made of a circular pipe material of a predetermined length having an inner diameter slightly larger than the outer diameter of the fixed pipe 3, and moves up and down outside the fixed pipe 3 in a positional relationship such that the upper end is slightly lower than the upper end of the fixed pipe 3. It is arranged as possible. The movable pipe 4 has a thickness slightly larger than the maximum length of the end face of the component P to be supplied, and has a horn-shaped guide face 4a inclined downward toward the center at the upper end face. I have. Further, engaging flanges 4b and 4c are formed at an outer surface intermediate portion and an outer surface lower end portion of the movable pipe 4, respectively. Coil springs S1 and S2 having a force relationship of S1 <S2 are interposed above and below the intermediate flange 4b. I have.

The parts guide 5 is shown in FIGS.
As shown in the figure, a linear guide groove 5a having a predetermined width and depth corresponding to the supply component is provided on the lower surface, and the side surface thereof is fixed to the frame 1. At the rear end of the guide groove 5a, a vertical passage 5 having a circular or rectangular cross section communicating with the inner hole of the fixed pipe 3.
In this embodiment, the component P in the hopper 2 is formed by the inner hole of the fixed pipe 3 and the vertical passage 5b.
Are drawn out in the longitudinal direction, and a component lead-out passage (no reference numeral) is formed and guided downward. A component outlet 5c for exposing the top surface of the leading component P to the outside is formed at the front of the component guide 5.

As shown in FIGS. 3, 7, 8, and 12, the belt guide 6 has a linear guide groove 6a having a predetermined width and depth corresponding to the belt 7 on the upper surface.
Are arranged below the component guide 5 such that the center in the width direction of the guide groove 5a coincides with the center in the width direction of the guide groove 5a.

Further, as shown in FIG. 7, on the bottom surface of the guide groove 6a corresponding to the lower side of the area used for conveying the parts of the belt 7, a part leading position (pointing to the part leading point X1 and its vicinity) is shown. Except for the part stop position (indicating the part stop point X2 and the vicinity thereof), a plurality of rare earth permanent magnets M having a flat cylindrical shape are arranged at equal intervals along the center in the width direction of the guide groove 6a. The magnets M are buried such that the upper surface thereof coincides with the bottom surface of the guide groove 6a, or the upper surface of each magnet M is slightly lower than the bottom surface of the guide groove 6a.

The above-mentioned "area used for conveying the components of the belt 7" includes the component deriving point X1 of the belt 7 (the center point when components are led out onto the belt from the component deriving passage). It indicates an area portion up to the component stop point X2 (the center point when the first component on the belt stops at the component stopper).

Further, as shown in FIGS. 7 and 8, the bottom surface of the guide groove 6a has a component take-out position (the component take-out point X3 (when the leading component is displaced forward together with the component stopper) as shown in FIGS. Center point) and points near it)
A similar permanent magnet M is provided on the lower side, and a transport component 1 is provided between the permanent magnet M and the permanent magnet M on the rear side.
About or more gaps are formed.

Incidentally, in the illustrated example, the guide groove 6
The diameter of the magnet P provided on the bottom of
Are used which are larger than the longitudinal dimension of. The polarity of the surface of the plurality of permanent magnets M facing the belt 7 sandwiched between the component deriving point X1 and the component stopping point X2 is such that N poles and S poles are alternately arranged in order from the leading permanent magnet M. I have. Furthermore, if the polarity (S-pole) of the surface of the permanent magnet M facing the belt 7 corresponding to the component take-out position is different from the polarity (N-pole) of the surface of the component stopper 9 facing the leading component P of the permanent magnet J described later. I have. Moreover, the magnetic force exerted by the permanent magnet J of the component stopper 9 on the component P displaced to the component extracting position is set to be smaller than the magnetic force exerted by the permanent magnet M corresponding to the component extracting position on the component P. .

The belt 7 is shown in FIG. 3, FIG. 8, FIG.
As shown in FIG. 4, a nonmagnetic flat belt or a timing belt formed of synthetic rubber or soft resin or the like has a magnetic permeability in itself, and is turned around the frame 1 at the front and rear positions of the belt guide 7. It is wound around a pair of pulleys 8 movably supported, and its upper part is located in the guide groove 6a of the belt guide 6, and the part is movably in contact with the lower surface of the component guide 5 by the winding tension. .

The parts stopper 9 is shown in FIGS.
As shown in the figure, the guide groove 5a is made of a non-magnetic rectangular plate having the same thickness as the groove depth, and one end of the guide groove 5a is horizontally supported by a stopper support member 9b via a pin 9a at a front position. Have been. The component stopper 9 is urged in the counterclockwise direction in FIG. 14 by the coil spring S3, and when the one surface thereof comes into contact with the front end of the guide groove 5a (see FIG. 15), the expected component stop position is secured. I do.

Further, a rectangular parallelepiped rare earth permanent magnet J is provided at a position facing the leading component P of the component stopper 9 so that its N-pole surface is in contact with the leading component P. In the illustrated example, as the permanent magnet J, the height dimension substantially matches the height dimension of the transport component P, and the width dimension is the transport component P
Are shown, the height of the permanent magnet J may be smaller than the height of the component P, and the width may be smaller than the width of the component P.

On the upper or lower side of the permanent magnet J, a substantially semicircular magnetic plate F larger than the upper or lower surface of the permanent magnet J is disposed. They are provided to match.
The magnetic plate F is used to adjust the magnetic field of the permanent magnet J, and is made of a magnetic material such as iron. The magnetic plate F suppresses magnetic flux leakage above or below the permanent magnet J, and has a surface facing the leading component P. The portion having a strong magnetic force is shifted upward or downward from the center in the height direction.

In the example shown in the drawing, a stopper supporting member 9b for rotatably supporting the component stopper 9 is connected to a component guide via a pin 9c so that the component P on the belt 7 can be easily discharged. 5 is attached to the front part so as to be rotatable upward. In other words, the component stopper 9 can maintain the horizontal state by engaging the front portion thereof with the leaf spring 9d provided at the front end of the component guide 5, and can maintain the horizontal state.
Is released from the belt 7 by rotating the stopper supporting member 9b upward by releasing the engagement with the belt, and the upward movement enables the movement of the component by the component stopper 9 to be released and the component P on the belt 7 to be released. Can be discharged from the front end of the guide groove 5a.

As shown in FIG. 3, the pipe up-and-down moving mechanism 10 includes an operation lever 10a, a relay lever 10b disposed below the operation lever 10a, and a positioning stopper 10c for defining a return position of the operation lever 10a. It is configured.
The operation lever 10a is provided with a pin 10 provided on the frame 1.
One end of the lever is supported by d, so that it can rotate vertically, and in the standby state, the upper surface of the center of the lever is in contact with the positioning stopper 10c. The relay lever 10b is supported at its center by a pin 10e provided on the frame 1 and is capable of turning in the vertical direction. The relay lever 10b has a round hole or a U-shaped portion formed at one end (the right end in the drawing) mounted between the lower end flange 4c of the movable pipe 4 and the lower coil spring S2. The roller 10f, which is urged downward by the coil spring S1 and provided at the other end, is in contact with the lower surface at the center of the operation lever 10a.

Incidentally, the positioning stopper 10c is composed of a disk and a screw for fixing the disk at an eccentric position. By changing the fixing direction of the disk, the return position of the operating lever 10a, that is, the lowering of the movable pipe 4 The position can be adjusted arbitrarily. For example, if the positioning stopper 10c is changed to the position indicated by the broken line in FIG. 3, the return position of the operation lever 10a can be shifted downward from the solid line position, and the movable pipe 4 can be displaced upward. .

In this pipe vertical movement mechanism 10, as shown in FIG. 5, by applying a downward force F to the end of the operation lever 10a, the operation lever 10a is turned counterclockwise about the pin 10d. The operating lever 10
a downward force can be applied to the roller 10f of the relay lever 10b on the lower surface of the relay lever 10b to rotate the roller 10f counterclockwise around the pin 10e.
Of the coil spring S1 via the coil spring S2
The movable pipe 4 can be moved upward while contracting.

By releasing the force F applied to the end of the operating lever 10a in the state shown in FIG. 5, the movable pipe 4 is moved downward by the urging force of the coil spring S1, and the relay lever 10b is accordingly turned clockwise. The operation lever 10a is rotated clockwise by pushing up with the roller 10f, and when the operation lever 10a comes into contact with the positioning stopper 10c, the rotation of the operation lever 10a is stopped. It can be returned to the standby state.

The belt feed mechanism 11 is shown in FIGS.
As shown in FIG. 5, an operation lever 11a, a relay lever 11b rotatably connected thereto, and a feed lever 1 rotatably connected thereto and rotatable on the same axis as the front pulley 8.
1c and a claw 1 rotatably provided on the feed lever 11c.
1d and a ratchet wheel 11 coaxially fixed to the front pulley 8
e, a positioning stopper 11f for defining a return position of the operation lever 11a, a positioning stopper 11g for defining a rotation limit position of the operation lever 11a, and the operation lever 11a is urged clockwise in the drawing. A coil spring S4 and a coil spring S5 for pressing the pawl 11d against the ratchet wheel 11e.
It is composed of The operation lever 11a has one end supported by a pin 10d common to the pipe up-and-down movement mechanism 10 to be able to rotate vertically, and the center of the lever side surface is brought into contact with the positioning stopper 11f in the standby state by the urging force of the coil spring S4. Abut. The operation lever 11a of the belt feed mechanism 11 and the operation lever 10a of the pipe vertical movement mechanism 10 described above are disposed so as to face each other up and down via a coil spring SS. The downward force applied to the end of the ten operation levers 10a can be transmitted to the end of the operation lever 11a of the belt feed mechanism 11 via the coil spring SS.

The positioning stopper 11g, like the positioning stopper 10c, is composed of a disk and a screw for fixing the disk at an eccentric position. The movement limit position, that is, the feed amount of the belt 7 can be arbitrarily adjusted. For example, as shown in FIG.
1, the operation lever 11
The belt feed amount can be increased by shifting the rotation limit position a to the right side of the solid line position.

In the belt feed mechanism 11, a downward force F is applied to the end of the operation lever 10a of the pipe up-and-down movement mechanism 10, and a downward force is applied to the end of the operation lever 11a via the coil spring SS. As shown in FIG. 11, the operation lever 11a is rotated counterclockwise around the pin 10d against the urging force of the coil spring S4,
The feed lever 11c can be rotated in the counterclockwise direction via the relay lever 11b.
The hook wheel 11e engaging with the hook 11d of 1c is connected to the front pulley 8
, The belt 7 can be moved forward by a distance corresponding to the rotation angle.

Further, in the state shown in FIG.
0 by releasing the force F on the end of the operating lever 10a to release the force on the end of the operating lever 11a, thereby rotating the operating lever 11a clockwise by the urging force of the coil spring S4, and positioning the stopper 11f. When the control lever 11a comes into contact with the control lever 11a, the rotation of the operation lever 11a is stopped, and the relay lever 11b and the feed lever 11c can be returned to the standby state shown in FIG. 1, and the claw 11d of the feed lever 11c is adjacent in the clockwise direction. It can be moved to and engaged with the groove.

The stopper displacement mechanism 12 is shown in FIGS.
As shown in FIG. 4, a ratchet wheel 12a coaxially fixed to the front pulley 8, a stopper operation plate 12c rotatably attached to the side surface of the frame 1 by a pin 12b, and a stopper operation plate 12c are attached to the front. Energizing coil spring S6
A component holding lever 12e horizontally movably attached to a front portion of the component guide 5 by a pin 12d, a coil spring S7 for urging the component holding lever 12e clockwise in the drawing, and a front side surface of the guide groove 5a. And a coil spring S8 for urging the component holding pin 12f outward.

In the standby state in which the stopper operating plate 12c is at the front position, as shown in FIG.
e is urged in the clockwise direction in the figure by the coil spring S7, whereby the component holding pin 12f is pushed into the guide groove 5a against the urging force of the coil spring S8, and the second component from the top is pushed by the component holding pin 12f. The component P is pressed against the inner surface of the guide groove 5a and is held at the same position. In addition, the component stopper 9 is displaced forward (a component removal position separated from the component removal position forward) by the pressing of the stopper operation plate 12c. Together they are displaced forward and completely away from the second part P.

In the stopper displacement mechanism 12, the ratchet wheel 12
In the process in which a rotates together with the ratchet wheel 11e of the belt feeding mechanism 11 described above (the process in which the belt 7 moves forward by a predetermined distance), the stopper operating plate 12c is raised and lowered by one pawl of the ratchet wheel 12a. Utilizing it, it can be moved backward by a predetermined distance. When the stopper operation plate 12c moves backward, as shown in FIG. 15, the component stopper 9 abuts on the front end of the guide groove 5a by the urging force of the coil spring S3, and the component stop position is secured. At the same time, the component holding lever 12
The rear end protruding portion 12e 'is pushed inward by the stopper operating plate 12c against the urging force of the coil spring S7 and rotates counterclockwise in the drawing, and the component holding pin 12f pushes the urging force of the coil spring S8. As a result, the second component P is moved outward and the holding of the second component P is released, and the entire components arranged on the belt 7 can be advanced.

The operation of the above-described component supply device will be described below. Operation lever 10a of pipe vertical movement mechanism 10
When the leading component P on the belt 7 is taken out from the component take-out port 5c by a suction nozzle or the like, the end portion is pressed downward by a part of the suction nozzle or the like or another operating device.

In the state where the movable pipe 4 is at the lowered position,
As shown in FIG. 4, the upper end of the movable pipe 4 and the sliding hole 2c
An annular pocket E is formed between the inner surface of the fixed pipe 3 and the outer surface of the fixed pipe 3, and a small amount of a component P enters the annular pocket E.

Operation lever 10a of pipe up / down movement mechanism 10
As described above, the movable pipe 4 is raised from the lowered position by a predetermined stroke by the rotation of the operation lever 10a and the relay lever 10b, and the upper end of the hopper 2 receives the hopper 2. It enters the room 2a.

In the process of moving the movable pipe 4 from the lowered position to the raised position, as shown in FIG.
As a result, the component P in the annular pocket E is lifted upward and the storage component in the storage chamber 2a is opened, and even if there is a component P lying on the fixed pipe 3, the component P is pushed away from the same position. In the same process, the storage component P in the hopper 2 is taken into the upper end opening of the fixed pipe 3 in the longitudinal direction by utilizing the inclination of the upper guide surface 4a of the movable pipe 4, and the inside of the fixed pipe 3 is kept in the same direction. It falls by its own weight and is guided downward.

When the pressing of the end of the operating lever 10a of the pipe up / down moving mechanism 10 is released, as described above, the relay lever 10b and the operating lever 10a are rotated and returned by the biasing force of the spring. The movable pipe 4 also returns downward from the raised position by the spring urging force.

In the process of moving the movable pipe 4 from the raised position to the lowered position, as shown in FIG.
Again, a small number of parts P enter again, and the whole stored parts descend. Also in this process, one storage component P is taken into the upper end opening of the fixed pipe 3 in the longitudinal direction by utilizing the inclination of the upper end guide surface 4a of the movable pipe 4, and falls in the fixed pipe 3 with its own weight. I do.

As described above, the parts are taken into the fixed pipe 3 during both the ascending and descending steps of the movable pipe 4. The component P taken one by one in the fixed pipe 3 in the longitudinal direction falls by its own weight in the fixed pipe 3 and is taken into the lower vertical passage 5b in the same direction, and is taken in the lower vertical passage 5b.
The inner part falls under its own weight, and one end thereof abuts on the upper surface of the belt 7, and the subsequent components P are stacked thereon in the longitudinal direction (see FIG. 12).

On the other hand, when a downward force is applied to the end of the operation lever 10a of the pipe up / down movement mechanism 10, as described above, the belt feed mechanism 11 is moved via the coil spring SS.
The end of the operation lever 11a is also pressed downward, and the rotation of the relay lever 11b and the feed lever 11c causes the claw 11 to move.
The ratchet wheel 11e with which d engages rotates counterclockwise together with the front pulley 8, and the belt 7 moves forward by a distance corresponding to this rotation angle, preferably a distance larger than the longitudinal dimension of the component P. Moving.

In the process in which the belt 7 moves forward by a predetermined distance, the part P whose one end is in contact with the upper surface of the belt 7 is pulled forward by the frictional resistance with the belt 7, rolls over, and lies on the belt 7. The one end of the component P contacts the upper surface of the belt 7 (see FIG. 13).

Since the movement (intermittent movement) of the belt 7 is repeated every time the leading part P is taken out from the part taking-out port 5c, the lowermost part P in the vertical passage 5b moves forward while receiving the same rollover action as described above. Move sequentially. This allows
The plurality of components P are arranged in a line on the belt 7 while being aligned by the guide groove 5a, and are conveyed forward in the aligned state in accordance with the intermittent movement of the belt 7.

As described above, since a plurality of permanent magnets M are arranged at equal intervals below the area of the belt 7 used for component conveyance, the component P conveyed forward by the belt 7 is Is attracted downward by the magnetic force of the permanent magnet M, and is conveyed in a state of being in close contact with the belt surface. Further, since the polarity of the surface of the permanent magnet M facing the belt 7 is such that the N pole and the S pole are alternately arranged along the belt 7, the component P on the belt 7 is located at any position in the component transport area. Even if there is, the above-mentioned adhesion action can be appropriately exerted. Therefore, the guide groove 5 is formed in the part P being transported.
Even when contact resistance with a is applied, it is possible to reliably prevent the parts P from rising and tilting, and to carry out the parts satisfactorily while keeping the arrangement state of the parts P properly. Further, since the permanent magnet M is not provided below the component leading-out position of the belt 7, the belt 7 is
There is no hindrance by the magnetic force to lead the components upward and the component rolling action by the belt 7 described above.

On the other hand, when the ratchet wheel 11e of the belt feed mechanism 11 rotates together with the front pulley 8 and the belt 7 moves forward, the ratchet wheel 12a of the stopper displacement mechanism 12 which rotates in the same direction as this. The stopper operation plate 12c is retracted by a predetermined distance, whereby the component stopper 9 is displaced rearward by the spring urging force, and the rear end surface abuts on the front end of the guide groove 5a to secure an intended component stop position. That is, the components P conveyed by the belt 7 stop when the leading component P abuts against the component stopper 9 and are arranged in a line in the longitudinal direction on the belt 7 without any gap. After the regulation, only the belt 7 moves forward by utilizing the sliding with the component contact surface (FIG. 15).
reference).

After the ratchet wheel 12a of the stopper displacement mechanism 12 has rotated by a predetermined angle (for one pawl) together with the ratchet wheel 11e of the belt feed mechanism 11, as described above, the stopper operating plate 12c is turned. As shown in FIG. 14, the component holding lever 12c is rotated back to return to the component holding pin 12f.
Is projected into the guide groove 5a, the second component P from the top is held, and the component stopper 9 is displaced forward and away from the front end of the guide groove 5a, so that the first component P is sucked. As it moves, it moves to the component take-out position, moves away from the second component P, and a gap C is forcibly formed between the first component P and the second component P.

As shown in FIG. 8, a gap of about one part or more is formed between the permanent magnet M provided below the part taking-out position of the belt 7 and the permanent magnet M located behind the part. Therefore, the separation of the first component P from the second component P and the holding of the second component P by the component holding pins 12f are not hindered by the magnetic force.

In a state where the component stopper 9 is displaced forward and the leading component P is completely separated from the second component P, as shown in FIG. At a position directly above the magnet M (a position where the longitudinal center of the component P coincides with the center of the permanent magnet M, or a position where the longitudinal center of the component P is slightly behind the center of the permanent magnet M); Part P is placed in a magnetic field formed between two permanent magnets J and M. That is, the component P displaced to the component unloading position receives the component stopper 9 by the magnetic force of the permanent magnet J.
While being attracted downward by the magnetic force of the lower permanent magnet M and closely contacting the upper surface of the belt 7, and being held in a stable position at the component take-out position by the magnetic force of the two permanent magnets J and M. .

Further, the magnetic force exerted by the permanent magnet J of the component stopper 9 on the component P displaced to the component extracting position is set to be smaller than the magnetic force exerted by the permanent magnet M on the lower side of the component P. Therefore, the component P sucked by the component stopper 9 can be securely brought into close contact with the upper surface of the belt 7 to prevent the component P from floating.

Further, the permanent magnet J of the component stopper 9
Since the magnetic plate F for adjusting the magnetic field is provided on the upper surface or the lower surface of the magnetic head, the magnetic plate F suppresses the leakage of the magnetic flux upward or downward of the permanent magnet J, and the magnetic force of the surface facing the leading component P is strong. By shifting the portion above or below the center in the height direction, it is possible to prevent the component P sucked by the component stopper 9 from rising or tilting.

When the leading part P is taken out by the suction nozzle or the like, as shown in FIGS. 8 and 14, the part stopper 9 is displaced forward to completely separate the leading part P from the second part P. Since the components P displaced to the component removal position are held in the same position by the magnetic force in a stable posture, the first component P does not interfere with the second component P and has a stable posture. Can be taken out.

As described above, according to the above-described component supply apparatus, the plurality of permanent magnets M are arranged at equal intervals below the region used for component conveyance of the belt 7, and the component P conveyed by the belt 7 is arranged. Are attracted to and adhered to the belt surface by the magnetic force of these permanent magnets M. Therefore, even when the contact resistance with the guide groove 5a is applied to the part P being conveyed, the part P rises or tilts. The components can be reliably transported while reliably preventing the transport components P from being properly arranged.

Further, since the permanent magnet M is not provided below the position of the belt 7 where the parts are led out, the magnetic force prevents the parts from being led out from the vertical passage 5b onto the belt 7 and the parts rolling action by the belt 7 is hindered. There is no.

Also, since the polarity of the surface of the plurality of permanent magnets M facing the belt 7 is such that N poles and S poles are alternately arranged along the belt 7, the components P on the belt 7 can be transported. At any position in the area, the above-described close contact action can be appropriately exerted, and the parts can be conveyed accurately.

Further, by displacing the component stopper 9 forward after the component is stopped, the first component P among the components arranged on the belt 7 is displaced to the component extracting position while the component stopper 9 is being sucked by the component stopper 9 and the second component is displaced. Therefore, even if the first component P and the second component P are stuck or stuck due to the influence of moisture or the like, this can be easily solved.

Further, since a gap of about one component or more is provided between the permanent magnet M provided below the component take-out position of the belt 7 and the permanent magnet M at the rear thereof, a component stopper is provided. Leading parts P and 2 due to forward displacement of 9
Separation from the second component P and holding of the second component P by the component holding pins 12f are not hindered by magnetic force.

Further, the component P displaced to the component extracting position is attracted to the component stopper 9 by the magnetic force of the permanent magnet J, and is stuck to the belt surface by the magnetic force of the lower permanent magnet M, and is stabilized at the same position. Since the component P can be held in the posture, the posture of the component P displaced to the component removal position is appropriately maintained until the component P is taken out, and the component P can be satisfactorily taken out in the same posture.

Further, the permanent magnet J of the component stopper 9
Of the surface facing the first part P of the belt guide 6 and the belt guide 6
By making the polarity of the surface of the permanent magnet M facing the same component different from that of the permanent magnet M, the magnetic force of the two permanent magnets J and M can be effectively used, and the component holding action by the magnetic force can be effectively exhibited.

Furthermore, the magnetic force exerted by the permanent magnet J of the component stopper 9 on the component P displaced to the component unloading position is set to be smaller than the magnetic force exerted by the permanent magnet M below the component stopper 9. The component P sucked to the belt 9 can be securely brought into close contact with the upper surface of the belt 7.

Further, the permanent magnet J of the component stopper 9
Since the magnetic plate F for adjusting the magnetic field is provided on the upper surface or the lower surface of the magnetic head, leakage of magnetic flux upward or downward of the permanent magnet J is suppressed, and the strong magnetic force of the surface facing the leading component P is reduced. Is shifted upward or downward from the center in the vertical direction, so that the component P
Rise and inclination can be prevented.

Further, the diameter (dimension in the component conveying direction) of the permanent magnet M provided below the component P displaced to the component extracting position is set to be larger than the longitudinal dimension of the component P. The magnetic force from the magnet M can be accurately applied to the component P displaced to the component extracting position.

FIG. 16 shows a modification of the component stopper, which is different from the component stopper shown in FIG. 9 in that the permanent magnet J and the magnetic plate F are slightly retracted from the surface facing the guide groove 5a. The structure is different in that the surface of the magnet J and the magnetic plate F facing the leading component is covered with a low-magnetic or non-magnetic non-magnetic plate H.

In the component stopper shown in the figure, the magnetic force from the permanent magnet J to the leading component P can be controlled by the thickness t of the non-magnetic plate H, and the component stopper can be controlled according to the component shape and size. 9 is useful for changing the component suction force.

FIG. 17 shows a modification of the permanent magnet on the guide groove side, which differs from the embodiment shown in FIGS. 1 to 15 in that a rectangular parallelepiped permanent magnet is used as the permanent magnet M. The structure is different in that the width of the magnet M is approximated to the width of the component P to be transported.

In the structure shown in the figure, the magnetic force of the lower permanent magnet M can be effectively used for the transport component P and the component P displaced to the component stop position. Can be avoided to prevent component shake. Of course, the same effect can be expected even if the exposed shape (magnetic flux passage area) of the flat columnar permanent magnet M is controlled by a non-magnetic mask plate or the like.

In the above-described embodiment, a flat belt or a timing belt made of synthetic rubber or soft resin is used as a belt for conveying components, but a belt made of a material having a hygroscopic property is used instead. If it is used, the adhesion between the belt and the components on the belt can be further increased, and the slip of the components can be suppressed more reliably.

In the above-described embodiment, the belt is used as the component conveying path. However, the belt and the guide groove of the belt guide are eliminated, and the guide groove of the component guide and the upper surface of the belt guide have a predetermined cross section. May be formed so that the components guided to the transport path can be rolled over and the components after the rollover can be transported by blowing air from behind the transport path.

[0070]

As described in detail above, according to the present invention,
Parts can be transported in close contact with the component transport path, so even if parts that are being transported are subject to contact resistance, etc.
It is possible to reliably prevent the parts from being lifted or tilted, and to carry out the parts satisfactorily while keeping the arrangement state of the transferred parts properly. Moreover, since there is no corresponding magnet at the component leading position, the magnetic force does not hinder the component leading from the component leading path to the component transport path.

[Brief description of the drawings]

FIG. 1 is a side view of a component supply device according to the present invention.

FIG. 2 is a perspective view of a supply target component.

FIG. 3 is a detailed view of a pipe vertical movement mechanism.

FIG. 4 is a detailed view showing a state where the movable pipe is at a lowered position.

FIG. 5 is an explanatory view of the operation of the pipe up-down movement mechanism.

FIG. 6 is a detailed view showing a state in which the movable pipe is at a raised position.

FIG. 7 is a partial top view of a belt guide.

FIG. 8 is a partial sectional view of a belt guide.

FIG. 9 is a top view of the component stopper and its bb line view.

FIG. 10 is a detailed view of a front pulley portion.

FIG. 11 is a diagram illustrating the operation of the belt feed mechanism.

FIG. 12 is a view showing an operation of deriving components onto a belt.

FIG. 13 is a diagram showing an operation of deriving components onto a belt.

FIG. 14 is a detailed view of a stopper displacement mechanism.

FIG. 15 is an operation explanatory view of a stopper displacement mechanism.

FIG. 16 is a view showing a modification of the component stopper.

FIG. 17 is a diagram showing a modification of the permanent magnet on the guide groove side.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Frame, 2 ... Hopper, P ... Parts, 3 ... Fixed pipe, 4 ... Movable pipe, 5 ... Parts guide, 6 ... Belt guide, M ... Permanent magnet, 7 ... Belt, 8 ... Pair of front and rear pulleys, 9 ... Parts stopper, J: permanent magnet, 10: pipe up / down movement mechanism, 11: belt feed mechanism, 12: stopper displacement mechanism.

Claims (6)

[Claims] 1. A hopper for accommodating chip-shaped components in a loose state, a component lead-out passage for receiving one component in the hopper in a predetermined direction and leading it downward, and a component led out from the component lead-out passage in a predetermined direction. In a component supply device having a component transport path for transporting, a magnet corresponding to a component transport area excluding a component lead-out position is provided, and the transport component is brought into close contact with the component transport path by the magnetic force of the magnet. Parts supply device. 2. A magnet for closely contacting a transport component with a component transport path is composed of a plurality of magnets arranged at equal intervals, and the polarity of a surface of the plurality of magnets facing the transport component is alternately N-pole and S-pole. The component supply device according to claim 1, wherein the component supply device is arranged in a row. 3. A component stopper for stopping a leading component on a component conveying path at a predetermined component stop position by mutual contact, and a stopper for displacing the component stopper to a component removal position separated from the component stop position and the same position. A displacement mechanism is provided, and a magnet is provided on the component stopper so that the first component on the component conveying path can be displaced to the component removal position while being attracted to the component stopper by the magnetic force of the magnet, and a magnet corresponding to the component removal position is provided. The component supply device according to claim 1 or 2, wherein a component displaced to a component removal position by the magnetic force of the magnet is brought into close contact with the component transport path. 4. A magnetic force exerted on a component displaced to a component removal position from a magnet of a component stopper by a magnetic force exerted on a component displaced to a component removal position from a magnet for closely adhering the component to a component transport path. The component supply device according to claim 3, wherein the size is also set to be small. 5. The polarity of the surface of the component stopper facing the magnet component and the polarity of the surface facing the magnet component for bringing the component displaced to the component removal position into close contact with the component transport path are different. 5. The component supply device according to item 3 or 4, wherein 6. A gap for at least one component is provided between a magnet for bringing a transport component into close contact with a component transport path and a magnet for bringing a component displaced to a component removal position into close contact with the component transport path. The component supply device according to any one of claims 3 to 5, wherein: