JP3284011B2 - Square chip parts supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a square chip component feeder used in a chip component mounting machine for mounting square chip components on a printed circuit board, and more particularly to a bulk (bulk) square chip component. The present invention relates to a square chip component supply device suitable for separating, supplying, and aligning and supplying components front and back or component polarity.

[0002]

2. Description of the Related Art Japanese Patent Application No. 5-3453 proposed by the present applicant.
The No. 18 square chip component supply device is configured such that, when a square chip component is put into a hopper as a storage portion in a loose shape, the square chip component falls smoothly into a separation and alignment pipe as the hopper moves up and down, and an alignment chute is formed. In this configuration, square chip components are arranged and supplied to a component extraction opening at the tip.

[0003]

SUMMARY OF THE INVENTION The aforementioned Japanese Patent Application No. 5-34.
The chip component supply device of No. 5318 has a function of aligning bulk square chip components, but does not have a function of aligning and supplying the front and back surfaces or the polarities of the square chip components that need to be distinguished from each other to one side. However, there is a problem that the applicable range is narrow because only square chip components having no front and back sides are supplied.

Japanese Unexamined Patent Application Publication No. 5-193725 discloses a front / back discriminating type separation / alignment device for chip components. When a sensor installed near the entrance of an alignment path discriminates front and back of a chip component, a blast from a fumarole is used. One of the chip components is blown back into the diffusion chamber, but the components may be damaged during the blow-back, and it is not suitable for a configuration in which the front and back of square chip components that fall vertically from the hopper are aligned. It has a simple structure.

A first object of the present invention is to provide a square chip component supply device capable of aligning and supplying bulk square chip components with the same front and back surfaces and polarities.

A second object of the present invention is to provide a highly reliable corner chip capable of reliably performing separation of a square chip part, directional change for aligning the front and back and polarity of the square chip part, and feeding after the directional change. It is to provide a component supply device.

[0007] Other objects and novel features of the present invention will become apparent in embodiments described later.

[0008]

In order to achieve the above object, a square chip component supply device according to the present invention comprises: a vertically moving storage portion for storing a square chip component; and one square chip component in the storage portion. A component drop passage having a through hole or a groove having a cross-sectional shape capable of passing therethrough, a sensor provided at the middle or lower end position of the component drop passage for detecting the front and back of the component or component polarity, and a fixing portion having a lateral fixed passage, A rotation part circumscribing the fixed part, a rotation drive part of the rotation part, and a direction conversion mechanism having a slit formed at a position symmetrical in the diameter direction with respect to the rotation part and capable of storing one square chip component; A lateral component feed path connected to the lateral fixed passage and the slit in a state where the slit coincides with the slit, and the lateral fixed passage
In the state of coincidence with the slit,
A fume path communicating with a slit located on the opposite side .

[0009] The rotation direction of the rotating part, which receives the square chip component falling through the component drop passage by the slit, is controlled and selected according to the detection result of the sensor, and the slit is supplied to the lateral component supply. Tomo When you connect to a sending passage
The angle in the slit due to the fumarole from the fumarole path
The chip component is sent out to the horizontal component feed path .

[0010]

In addition, a component pick-up opening is provided at a component pick-up position on the tip side of the horizontal component feed path, and a shutter for opening and closing the component pick-up opening is provided.
Providing an air suction path for sucking air in the horizontal component feeding path, performing air suction in the horizontal component feeding path in a state where the shutter is closed, and providing the air suction path in a state where the shutter is opened. May be shut off.

Further, a component passage detection sensor is provided at an intermediate position in the horizontal component feed path, and after the component passage detection sensor detects that the square tip component has been sent out from the direction conversion mechanism, the next corner chip is detected. A configuration may be adopted in which components are received by the direction changing mechanism.

[0013]

In the corner chip component supply device of the present invention, a component having a cross-sectional shape through hole or groove capable of passing one square chip component by vertically moving a storage portion for storing a bulk square chip component. The component is dropped into the drop passage, and the front and back or the polarity of the square chip component is detected by a sensor provided at the middle or lower end of the component drop passage for detecting the front and back of the component or the polarity of the component. Then, after receiving the square chip component after detecting the front and back or polarity of the component with the slit of the rotating part of the direction changing mechanism, for example, when the front side of the square chip component is detected by the sensor, the slit containing the square chip component The rotary unit is driven to rotate in the first direction so as to be directly connected to the horizontal feed path, and is sent out from the slit to the horizontal feed path. Conversely, when the back side of the square chip component is detected by the sensor, the rotating portion is driven to rotate in a second direction opposite to the first direction, and the horizontal portion of the fixing portion of the direction changing mechanism is provided. The slit containing the square chip component is connected to the lateral feed path via the fixed direction passage, and the square chip component is delivered to the horizontal component feed path through the fixed horizontal passage. Since the front and back of the square chip component are reversed between the rotation in the first direction and the rotation in the opposite second direction, the rotation direction of the rotation unit is controlled according to the detection result of the front and back of the sensor. Thus, the square chip component can be sent out with its front and back aligned in the lateral feed path.

In the case where there is a fume path communicating with the slit located on the opposite side of the lateral component feed path in a state where the lateral fixed passage and the slit coincide with each other, the fumes from the fume path cause the fumes to enter the slit. Can be reliably sent to the lateral component feeding path.

A component pick-up opening is provided at a component pick-up position on the distal end side of the horizontal component feed path, a shutter for opening and closing the component pick-up opening is provided, and air in the horizontal component feed path is provided. When an air suction path for suction is provided, air is sucked in the horizontal component feeding path with the shutter closed to generate a gas flow toward a component pick-up position, and the square chip component is securely connected to the component. It can feed to the pickup position. Further, when the shutter is opened, the air suction path is shut off,
It is possible to smoothly take out the square chip component by the pickup means such as the suction pin.

In the case where a component passage detection sensor is provided at an intermediate position in the lateral component feed path, after the component passage detection sensor detects that a square chip component has been sent from the direction conversion mechanism, the next corner detection sensor detects that a corner chip component has been sent out. The chip component can be received by the direction changing mechanism, the operation of the direction changing mechanism can be ensured, and the occurrence of troubles such as component clogging can be detected quickly.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a square chip component supply apparatus according to the present invention.

FIG. 1 is a front view showing the entire configuration of an embodiment of the present invention. In this drawing, what is indicated by a virtual line 1 is a supply unit base of the chip component mounting machine, and the main body frame 10 of the square chip component supply device is mounted on the supply unit base 1.

A support 51 is fixed to the left side of the main frame 10, and a precision ball slide 11 is slidably mounted on the left end of the support 51 in the vertical direction. Of the hopper base 12 is fixed. The hopper 13 as a storage unit for storing the square chip components is provided with the hopper base 1.
2 and the hopper 13
The lower penetrating portion 15 penetrates the horizontal portion 12b. The lower penetrating portion 15 has a hole 15a communicating with the lowermost portion of the funnel-shaped space 16 inside the hopper and opening at the lower end surface.

On a support 51 fixed to the main body frame 10, a separating and aligning pipe 55 as a component separating member is provided in a pipe fixing block 5 in a vertical direction (up and down direction).
It is erected and fixed at 6. The separating and aligning pipe 55 is made of, for example, metal. As shown in FIG.
5a.

A hopper base 12 on which the hopper 13 is mounted is attached to a left end of a support body 51 fixed to the left side of the main body frame 10 by a precision ball slide 11 so as to be able to move up and down. A hopper elevating DC motor 42 is fixed to the support 51 for driving. This motor 42 has a speed reducer 42A, and as shown in FIGS. 1 and 2, a cam 43 is fixed to the rotating shaft, and a pin 43A fixed to the cam 43 is connected and fixed to the lower end of the hopper base 12. The cam follower 44 is fitted in a long hole (a horizontally long hole) 44a. Accordingly, the rotation of the motor 42 causes the hopper base 12 and the hopper 13 to reciprocate up and down. that time,
When the hopper 13 is lowered, the upper part of the separation and alignment pipe 55 projects from the opening of the hole 15a into the funnel-shaped space 16 inside the hopper 13. However, FIGS. 1 and 2 show the raised position of the hopper 13.

The hopper elevating DC motor 42 is turned on and off by operating a switch 45. The switch 45 is turned on during operation, but turned off when the hopper 13 is replaced. And

As shown in FIG. 3, the separating and aligning pipe 55 has a through-hole 55a having a rectangular cross-section having a cross-sectional shape through which one long side of the square chip component passes vertically.
As shown in FIGS. 1 and 4, a grooved plate member 1 having a rectangular vertical groove 17a connected to and communicated with the lower end of the through hole 55a.
7 is fixed to a support body 51 which stands upright in the vertical direction. The grooved plate 17 is made of, for example, metal. As shown in FIG. 4, a rectangular cross section 1 formed in the grooved plate 17 is formed.
7a is a vertical groove in the vertical direction.
The front opening of “a” is covered with a blocking plate 18 made of a transparent resin or the like to form an upper and lower pipeline 19 from which the square chip component falls. Therefore, the through hole 55a of the separation and alignment pipe 55 and the upper and lower conduits 19
These form a component drop passage 21 in which the square chip component falls by gravity. The groove width of the rectangular vertical groove 17a having the same cross section as the through hole 55a is slightly larger than the thickness of the square chip component, and the groove depth is set to the short side of the square chip component (the short side of the wide surface of the square chip component). ) Is set slightly larger than the length. When the closing plate 18 is transparent, there is an advantage that the state of the square chip component falling in the rectangular vertical groove 17a can be seen from the outside.

As shown in FIG. 1, a component detection sensor 22 is arranged at a position in the middle of the component drop passage 21 (for example, a position slightly below the intermediate point). The component detection sensor 22 is an optical sensor.
One is a light-emitting part and the other is a light-receiving part with the light-transmitting groove or hole traversing the rectangular vertical groove 17a so that light from the light-emitting part enters the light-receiving part when there is no square chip component. It is formed as follows. When a square chip component is present in the vertical rectangular groove 17a between the light emitting portion and the light receiving portion of the sensor 22 and the sensor 22 detects the presence of the square chip component,
The power of the DC motor 42 is turned off, the movement of the hopper 13 is stopped, and the supply of square chip components is stopped. Note that the sensor 22 is turned on and off instantaneously when the component passes, but the motor 42 has inertia and does not actually stop. When the chip component 20 is 1
The motor 42 stops when the aligned end of the row continuously blocks the light of the sensor 22. This ensures that an appropriate number of square chip components are present in the component drop passage 21.

As shown in FIGS. 5 to 10, a direction changing mechanism 30 is provided below the component drop passage 21.
The direction changing mechanism 30 has, for example, a disk-shaped fixed portion 31 with a groove made of metal and a flat bottomed cylindrical rotating portion 32 made of metal or the like.

The grooved disk-shaped fixing portion 31 has a transverse groove (horizontal straight groove) 31a having a rectangular cross section in the diameter direction.
Is covered with a cover plate 33 made of a transparent resin or the like to form a horizontal fixed passage 34 serving as a conduit. The lid plate 3
The fixing plate 3 and the fixing portion 31 are fixedly integrated with each other by bonding or the like, and the cover plate 33 is fixed to the grooved plate 17 with screws 36. The groove width of the rectangular cross section 31a is set slightly larger than the thickness of the square chip component 20, and the groove depth is set slightly larger than the length of the short side of the square chip component. When the cover plate 33 is transparent, the direction changing mechanism 30
There is an advantage that the inside of the square chip component 20 can be seen through from the outside.

As shown in FIG. 6, the flat bottomed cylindrical rotating portion 32 is disposed inside the circular concave portion 17c of the grooved plate member 17, and the cylindrical portion 32a of the flat bottomed cylindrical rotating portion 32 is The outer peripheral surface of the fixed portion 31 is slidably slidable on the outer peripheral surface of the fixed portion 31 (the inner peripheral surface of the cylindrical portion is in contact with the outer peripheral surface of the fixed portion). In the cylindrical portion 32a, slits 35 are formed at symmetric positions with respect to the center of the rotating portion 32, respectively. The pair of slits 35 formed in the cylindrical portion 32a penetrates between the inner and outer peripheral surfaces of the cylindrical portion 32a in the diametric direction, and as shown in FIG.
0 has a length dimension substantially equal to the length of the long side, the width is slightly larger than the thickness of the square chip component 20, and the depth is slightly larger than the length of the short side of the square chip component 20. (In this embodiment, the slit 35 is formed by a groove formed on the front end surface of the cylindrical portion 32a.) That is, the component drop passage 21 opening above the circular recess 17c
And a continuous passage.

As shown in FIG. 6, a pinion 37 is rotatably mounted on a grooved plate 17 and a support 51 on the back side thereof by a bearing 38. A flat bottomed cylindrical rotary member is provided on the front side of the pinion 37. The part 32 is fixed with screws 39. Further, a rack 40 that engages with the pinion 37 is provided on the support body 51 so as to be slidable in the horizontal direction, and the pinion 37 is rotated by ± 90 degrees by the lateral movement of the rack 40. .

FIG. 7 shows a cylinder mechanism 110 for moving the rack 40 right and left from the neutral position in order to rotate the pinion 37 by ± 90 degrees. The cylinder mechanism 110 has an air cylinder 111 having the same stroke.
a and 111b are mounted on the slider 112 with their backs facing each other. That is, the slider 112 is slidable in the horizontal direction with respect to the horizontal portion of the cylinder mounting frame 113 fixed to the support 51, and the slider 1
12, the main body of each of the air cylinders 111a and 111b is fixed. The piston rod of the air cylinder 111a is fixed to the end of the cylinder mounting frame 113, and the piston rod of the air cylinder 111b is
Is connected to an extension rod 40a which is integral with the rack 40.

In this cylinder mechanism 110, in a state shown in FIG. 7 in which both air cylinders 111a and 111b are in a contracted state, the flat bottomed cylindrical rotating portion 32 is moved in FIG.
9 is a state in which the pinion 37 is rotated forward by 90 degrees in the direction of arrow A from FIG. 9 (since FIG. 7 is a view seen from the back side of FIG. 1, the left rotation of the pinion 37 in FIG. Then it is equivalent to right rotation.) Also, the air cylinders 111a, 1
If one of 11b is contracted and the other is extended, the rack 40 is in the neutral position, and the flat bottomed cylindrical rotating part 32 is in the state of FIG. If both of the air cylinders 111a and 111b are in the extended state, the rotating part 32 moves from the arrow B in FIG.
The state shown in FIG. 10 is reversed by 90 degrees in the direction of. In this manner, the pinion 37, the rack 40, and the cylinder mechanism 110 constitute a rotation drive unit of the flat bottomed cylindrical rotation unit 32.

As shown in FIGS. 1, 5 and 8 to 10, a component front / back detection sensor 120 is provided at the lower end of the component drop passage 21. This part front and back detection sensor 1
The component 20 is fixed to the support body 51 side to detect the front and back of the square chip component 20 located immediately before entering the slit 35, that is, the lowest position in the component drop passage 21. The light transmitting groove or hole 121 for allowing the light to reach the component drop passage 21 is formed by the grooved plate 1.
7 is formed. The component front / back detection sensor 120 is, for example, a reflection type optical sensor, and can determine the brightness (brightness) of the surface of the square chip component 20 facing the sensor. For example, when the square chip component 20 is a chip resistor,
Since the front side with the carbon resistance film is black and the back side, which is the surface to be mounted on the printed circuit board, is white, it can be determined by the reflection type optical sensor.

A horizontal groove (horizontal groove) 17b having a rectangular cross section is formed in the lower portion of the grooved plate member 17, and the front opening of the horizontal groove 17b is made of a transparent resin or the like as shown in FIG. It is covered with the closing plate 18 to form a horizontal pipe 122 for feeding the square chip component 20. The cross-sectional rectangular lateral groove 17b is opened to the right of the circular concave portion 17c, and has the same cross-section as the lateral groove 31a and the slit 35 on the fixed portion 31 side, and can configure a component passage continuous therewith. An opening is provided at a position opposite to the rectangular transverse groove 17b across the fixing portion 31 and the cylindrical portion 32a (a circular recess 17c).
(Opened on the left side of the nozzle) is formed in the grooved plate member 17 at the tip end of the fume path 125. As shown in FIG. 1, compressed air is supplied to the external connection port 126 of the blast line 125.

A component passage detection sensor 130 is provided at an intermediate position of the rectangular cross section 17b. The component passage detection sensor 130 is an optical sensor. If it is a transmission type, one is a light emitting portion and the other is a light receiving portion across the vertical groove 17b having a rectangular cross section, and emits light when the square chip component 20 is not present. A light transmitting groove or hole 131 is formed so as to cross the rectangular cross-sectional lateral groove 17b so that the light of the portion enters the light receiving portion. Then, when the square chip component 20 passes through the rectangular lateral groove 17b between the light emitting portion and the light receiving portion of the sensor 130 and the light is blocked, the sensor 130 detects the passage of the square chip component.

As shown in FIGS. 1, 11 and 12, a linear chute 61 is provided along the upper side of the main body frame 10. The straight chute 61 is formed by covering a chute lid 64 made of a transparent resin or the like on the upper surface of a linear base 63 made of metal or the like having a rectangular cross-sectional linear groove 63a fixed to the main body frame 10 and opened on the upper surface. The chute lid 64 is fixed to the linear base 63 by screwing a lid mounting screw 65 into a screw hole on the linear base 63 side from above. A distal end side chute lid 68 made of metal or the like is fixed to the upper surface on the distal end side of the linear base 63 by screwing a lid mounting screw 69 into a screw hole on the linear base 63 side.
At this time, positioning pins 63b fixed to the linear base 63
By fitting the positioning hole 68a on the tip chute lid 68 side to the tip chute lid 68, the tip chute lid 68 can be fixed in an accurately positioned state. As a result, the upper opening of the cross-sectional rectangular straight groove 63a is closed by the chute lids 64, 68 to form the horizontal pipe 123, and the horizontal pipes 122, 123 connected and communicated with the same cross section, feed the horizontal parts. A road 70 is configured. The horizontal component feeding path 70 is preferably substantially airtight except for the openings at both ends. The groove depth of the rectangular cross-section linear groove 63 a is set slightly larger than the thickness of the square chip component 20, and the groove width is set slightly larger than the length of the short side of the square chip component 20.

The linear base 63 is provided with a component stopper 71 (fixed to the linear base 63) at the tip (right end) of a linear groove 63a having a rectangular cross section. Further, a shutter 73 is supported on the linear base 63 by a fixed guide 72 so as to be slidable in the horizontal direction. The component stopper 71 positions the square chip component 20 at the component pick-up position P (indicated by a dashed line in FIG. 12) by abutting the end of the most advanced square chip component 20, and enables air suction. Therefore, a gap is provided so as not to block the entire surface of the rectangular straight groove 63a. The shutter 73 has an air suction hole 74 opened on the back surface of the stopper 71 and communicating with the linear groove 63a having a rectangular cross section. In a closed state, the shutter 73 shown in FIG. 11 is brought into contact with the distal end of the distal end side chute lid 68, and at this time, the air suction hole 73 communicates with the air suction hole 75 provided in the thin portion 63b of the linear base 63. It has become. The top end of the shutter 73 closes the upper surface of the rectangular cross-section linear groove 63a in the shutter closed state, and the component pick-up opening 100 at the component pickup position P shown in FIG. This position is to cover the gap above the groove 63a between the shutter 73 and the chute lid 68).

The external connection port 7 is provided at the lower end of the air suction hole 75.
6 is connected to a negative pressure source such as a vacuum generator (vacuum ejector) via a hose. That is, in the shutter 73 closed state, the air suction hole 74 on the shutter 73 side communicates with the air suction hole 75 on the linear base 63 side, and is connected to the negative pressure source through the external connection port 76 and the hose.

As shown in FIG. 12, when the shutter 73 is fully opened, the bottom surface of the shutter 73 closes the upper end opening of the air suction hole 75 to cut off the air suction path, and the component take-out opening 100 is opened. Even if the air suction by the source is continued, the suction force does not act on the square chip component 20.
As described above, since the suction force is not applied when the shutter 73 is open, it is possible to prevent the unnecessary force accompanying the suction of air from being applied to the square chip component 20 located in the component extraction opening 100, Disturbance of the floating posture of the square chip component 20 can be prevented.

As shown in FIG. 13 (a view from the opposite side of FIG. 1), a pin 81 A at the upper end of a shutter opening / closing arm 81 is engaged with the shutter 73. The shutter opening / closing arm 81 is rotatably supported by a support shaft 82 fixed to the main body frame 10, and has an engagement portion 83 at a lower end. A rotary lever 84 is also rotatably supported on the support shaft 82, and the engaging portion 8
An engaging pin 85 with which the third arm 3 is engaged is provided, and one end of a connecting arm 86 is pivotally attached to the lower end. The shutter opening / closing arm 81 and the rotating lever 84 are connected by a tension spring 87, and urges them so that the engaging portion 83 of the shutter opening / closing arm 81 engages with the engaging pin 85 on the rotating lever side. . That is, when the rotation lever 84 rotates leftward in FIG. 13, the shutter opening / closing arm 81 rotates leftward so that the engagement portion 83 follows the engagement pin 85, and the shutter 73 slides leftward to open. When the rotation lever 84 rotates clockwise, the shutter opening / closing arm 81 rotates clockwise by the engagement portion 83 being pushed by the engagement pin 85, and the shutter 73 slides rightward to close.

The other end of the connecting arm 86 is pivotally connected to an operating lever 88. The operation lever 88 is rotatably supported by a support plate 89 fixed to the main body frame 10, and an operation unit 91 provided at an upper portion is operated by an operation force of a chip component mounting machine side pressing member 95. Figure 1 in response to F
In 3, the camera rotates left. It should be noted that the operating force F is such that the suction pin (component pickup pin) 2 on the chip component mounting machine side shown in FIG.
During the operation of sucking the square chip component 20 by the
It is added in conjunction with the decline of. A tension spring 92 is provided between the lower end of the operation lever 88 and the main body frame 10. When the suction pin 2 returns to the raised position and the operation force F to the operation section 91 is released, the operation lever is released. 88 is urged to rotate clockwise. When the operation lever 88 receives the operation force F of the drive source, the operation lever 8
8 rotates counterclockwise, pulls the connecting arm 86, and rotates the rotation lever 84 counterclockwise. When the operation force F of the drive source to the operation lever 88 is released, the operation lever 88 is rotated rightward by the tension spring 92, pushing the connecting arm 86, and rotating the rotation lever 84 rightward in FIG.

As described above, the shutter 73 is opened and closed by the shutter opening / closing arm 81, the rotating lever 84, the connecting arm 8
6 and the operation lever 88 are operated in conjunction with each other. At this time, the shutter opening / closing arm 81 and the rotary lever 8
4 is connected by a tension spring 87, and the left rotation of the shutter opening / closing arm 81 follows the left rotation of the rotation lever 84, so that any obstacle occurs during the opening operation of the shutter 73 (sliding to the left in FIG. 13). Occurs, and when a force that prevents the shutter opening / closing arm 81 from rotating to the left, that is, a force greater than the tension force of the tension spring 87 is applied, the force is applied to the tension spring 87.
The shutter opening / closing arm 81 is prevented from forcibly following the left rotation of the rotation lever 84. Further, the shutter opening / closing arm 81 and the rotating lever 8
4 is rotated to the right by the operation lever 88 and the body frame 1.
0 (the operating lever 8).
8 is biased in the clockwise direction) through the connecting arm 86, so that some trouble occurs during the operation of closing the shutter 73 (sliding to the right), and the shutter opening / closing arm 81 and the rotation When a force that hinders the right rotation of the lever 84, that is, a force equal to or greater than the pulling force of the tension spring 92, is applied, the rotation of the operation lever 88 stops, and the shutter opening / closing arm 81 and the rotation lever 84 are not forcibly rotated right. Has become. Accordingly, when the shutter 73 is opened and closed, the square chip component 20 is located at the gap between the shutter 73 and the tip-side chute cover 68 and the component removal opening 100
Even if some troubles occur, such as being caught on the device, the opening / closing operation is not forcibly performed.

As shown in FIG. 1, the main body frame 10
On the lower side, a feeder lock lever 101 and a lock claw 102 are attached. The feeder lock lever 101 and the lock claw 102 are pivotally attached to the main body frame 10, respectively, and both are connected via a connection link 103. Although not shown, a spring is provided between the feeder lock lever 101 and the main body frame 10 to bias the feeder lock lever 101 in a locking direction (counterclockwise direction in FIG. 1). The lock claw 102 is disengaged from the pin 104 provided on the supply unit base 1 of the chip component mounting machine when the feeder lock lever 101 is pulled up as shown by the imaginary line Q in FIG. And it is possible to remove all the mechanisms attached thereto. When the feeder lock lever 101 is in the state shown by the solid line in FIG. 1, it is in the mounted state, and the lock claw 102 is engaged with the pin 104.

Next, the operation of the overall configuration of the above embodiment will be described.

First, a large number of bulk (rose) square chip components 20 are stored in the hopper 13, and the switch 45 is turned on to set the hopper up / down DC motor 42 in a rotatable state. , Direction changing mechanism 30
The rotational position of the flat-bottomed cylindrical rotating portion 32 is kept on standby with the horizontal fixed passage 34 and the slit 35 aligned as shown in FIG. This is to prevent the corner chip component 20 that has fallen in the component drop passage 21 from directly falling into the slit 35.

When the component detection sensor 22 has not detected the aligned end of the square chip components 20 in the component drop passage 21 in one row, the DC motor 42 rotates and the hopper base 12 and the hopper 13 is moved up and down. For this reason, the separation and alignment pipe 55 is
5 enter and exit the funnel-shaped space 16 through the hole 15a, and the square chip component 20 in the funnel-shaped space 16 is raised, lowered, and slightly moved. With this, the bulk square chip component 20 in the hopper is
3 enters (falls) in a separated state into the through hole 55a of the separation and alignment pipe 55 shown in FIG. The square chip component 20 drops by gravity toward the lower end of the component drop passage 21 through the through hole 55a of the pipe 55. Initially, the lower end opening of the component drop passage 21 has a flat bottomed cylinder as shown in FIG. Since it is closed by the cylindrical portion 32 a of the rotary part 32, it is aligned and accumulated in the component drop passage 21 in the vertical direction from below. Then, the operation of the DC motor 42 is continued until the component detection sensor 22 detects a row (aligned end) of the square chip components 20 at the arrangement position. When the component detection sensor 22 detects a vertically aligned series of the square chip components 20, the operation of the DC motor 42 is stopped, the vertical movement of the hopper 13 is stopped, and the square chip components 20 Stop supplying.

In the direction changing mechanism 30, immediately after the operation of the apparatus is started, the component detecting sensor 22 detects the square chip component 20.
The operation is started after detecting the up-down sequence. The direction changing mechanism 30 receives the fall of the square chip component 20 in the component drop passage 21 in the state of FIG. 5, and the corner chip component located at the lowermost end of the component drop passage 21 when the square chip component 20 below the passage 21 is stopped. The front and back 20 are detected by the component front and back detection sensor 120. Thereafter, the cylindrical portion 32a of the flat-bottomed cylindrical rotating portion 32 returns to the neutral state in FIG. 8, and the slit 35 formed in the cylindrical portion 32a is connected to and communicates with the component drop passage 21 to detect front and back. Only one square chip component 20 is taken into the slit 35.

If the detection signal of the component front / back detection sensor 120 indicates that the surface of the square chip component 20 facing the sensor is the front surface, the cylinder mechanism 11
9 by operating the flat bottomed cylindrical rotating portion 32 by 90 degrees as shown by an arrow A in FIG.
The slit 35 containing the square chip component 20 is directly connected to the horizontal pipe 122 of the horizontal component feed path 70 as shown in FIG.
In the state of FIG. 9, the surface of the square chip component 20 faces upward (the back surface which is the surface to be mounted on the printed circuit board faces downward), and when the posture of FIG. The fumes are emitted from the opening of the passage 125 through the empty slit 35 and the lateral fixed passage 34 on the opposite side, and the component take-out opening 100 at the component pick-up position P at the tip of the linear chute 61 is closed by the shutter 73 as shown in FIG. In this state, the suction force due to the negative pressure due to the air suction paths of the air suction holes 74 and 75 also acts. As a result, the square chip component 20 is supplied in the direction of arrow C in FIG. Under the feeding force, the horizontal component feed path 70 is moved in the order of the horizontal pipe 122 and the horizontal pipe 123, and as shown in FIG. Contact with stops goods stopper 71. That is, the leading edge chip component 20 is positioned and stopped at the component pick-up position P of the component extraction opening 100.

On the other hand, if the detection signal of the component front / back detection sensor 120 indicates that the surface of the square chip component 20 facing the sensor is the back surface, the cylinder mechanism 110
Then, as shown by arrow B in FIG. 8, the flat bottomed cylindrical rotating portion 32 performs reverse rotation of 90 degrees (left rotation), and the slit 35 in which the square chip component 20 is inserted as shown in FIG. 122
Is connected to the lateral fixed passage 34 of the fixed part 31 on the opposite side. In the state of FIG. 10 as well, the surface of the square chip component 20 faces upward (the back surface which is the surface to be mounted on the printed circuit board faces downward). Since the fumes are emitted from the opening of the fume path 125 and the component take-out opening 100 at the component pick-up position P on the tip side of the linear chute 61 is closed by the shutter 73 as shown in FIG. , 75 also acts as a suction force due to the negative pressure, and as a result, a gas flow in the direction of arrow D is generated and the square chip component 20 is fed in the direction of arrow D in FIG. The horizontal fixed passage 34, the empty slit 35, and the horizontal component feed path 70
Then, the corner chip component 20 at the forefront comes into contact with the component stopper 71 and stops, as shown in FIG.

The component passage detection sensor 130 at a position halfway along the horizontal conduit 122 in the horizontal component feed path 70
When one passing of the square chip component 20 is detected, the direction changing mechanism 30 returns to the neutral position in FIG. 8 again, and accepts one square chip component 20 after the front / back discrimination into the slit 35 to repeat the above operation. .

When the number of square chip components 20 in the horizontal component feed path 70 increases and the aligned ends of the square chip components 20 continuously block the light of the component passage detection sensor 130, Suspends the operation of the direction changing mechanism 30.

If the component passage detection sensor 130 cannot detect the passage of the square chip component 20 from the state shown in FIG. 9 or FIG. 10, there is a high possibility that the square chip component 20 is clogged. Stop.

For the square chip component 20 sent to the component pick-up position P on the distal end side of the horizontal component feed path 70, a pick-up operation is performed by the suction pin 2 on the chip component mounting machine side. That is, the suction pin 2 on the chip component mounting machine side is lowered, and an operation force F is applied to the operation portion 91 of the operation lever 88 as shown in FIG. 13 to link the connecting arm 86 and the rotation lever 84 in FIG. The opening / closing arm 81 is rotated to the left in FIG.
(FIG. 13 is viewed from the back side of FIG. 1, FIG. 11 and FIG.
3 slides rightward. ). As a result, the shutter 7
3 is opened (the component removal opening 100 is fully opened), the bottom surface of the shutter 73 closes the upper end opening of the air suction hole 75, the air suction path is cut off, and air suction does not work on the square chip component 20. The state continues. And
The suction pin 2 on the mounting machine side descends to suction the tip chip component 20 at the component pick-up position P, and lifts and transports it. At this time, since the air suction path is shut off, no lateral feeding force acts on the respective square chip components 20, and the respective square chip components 20 are loosened from each other. There is no failure.

Then, when the suction pin 2 sucks the square chip component 20 and moves upward, the operation force F of the operation lever 88 to the operation portion 91 is released, and the operation lever 88 is moved rightward in FIG. The shutter 73 is rotated to rotate the shutter opening / closing arm 81 clockwise in conjunction with the connection arm 86 and the rotation lever 84 to slide the shutter 73 rightward (leftward in FIG. 12). As a result, the shutter 73 is closed, the component removal opening 100 is closed, the air suction hole 74 communicates with the air suction hole 75 on the side of the linear base 63, and the air suction hole 7 is closed.
The air suction of 4 becomes effective. Then, the square chip component 20 in the horizontal component feed path 70 receives the feeding force in the right direction in FIG. 1 by the air suction, and the most advanced square chip component 20 abuts against the component stopper 71 to open the component removal opening. The position is stopped at the component pick-up position P of 100, and a standby state for picking up components by the suction pin 2 is set.

According to the above embodiment, the following effects can be obtained.

(1) A mechanism for separating and aligning the bulky square chip components 20 by moving the hopper 13 up and down with respect to the separation and alignment pipe 55 as a component separating member. Can be aligned and fed,
The square chip component 20 can be supplied with almost no damage or dirt, and can be applied to supply of various square chip components, and the application range is wide.

(2) The component drop passage 21 can be formed almost vertically in the first half with the direction changing mechanism 30 interposed therebetween.
0 can be reliably taken out of the hopper 13 by falling due to gravity. Subsequently, in the second half, the square chip component 20 can be reliably fed through the horizontal component feed path 70 disposed substantially horizontally by the fumarole behind the square chip component 20 and the suction by the negative pressure in front thereof, and the reliability is high. An apparatus for supplying square chip components is obtained.

(3) A component passing detection sensor 130 is provided, and the component passing detecting sensor 130
After detecting that the square chip component 20 has been sent from the device, the next square chip component 20 is received by the direction changing mechanism 30, so that the operation of the direction changing mechanism 30 is ensured, and the occurrence of troubles such as clogging of the parts is promptly prevented. Can be detected.

(4) The component detection sensor 22 is provided in the middle of the component drop passage 21, and if a certain amount or more of the square chip component 20 exists in the component drop passage 21, the hopper lifting / lowering D
In this configuration, the vertical movement of the hopper 13 is stopped by stopping the C motor 42.
Is not agitated more than necessary, so that damage to the square chip component 20 can be suppressed.

In the above embodiment, the direction changing mechanism 30 is used.
As shown in FIG. 6, the pinion 37, the rack 40, and the cylinder mechanism 1 are used to rotationally drive the flat bottomed cylindrical rotating portion 32 of FIG.
Although the rotation drive unit consisting of 10 is used, the flat bottomed cylindrical rotation unit 32 can be directly driven by a motor.
This case is shown in FIG. 14 as a modification of the rotation drive unit.

In FIG. 14, reference numeral 140 denotes a pulse motor, which is a flat bottomed cylindrical rotating portion 32 of the direction changing mechanism 30.
The extension shaft portion 32b is directly connected to the rotation shaft of the pulse motor 140 via a joint 141. Joint 1
A rotation detection plate 142 is fixed to 41, and a rotation detection sensor 143 is provided to detect the rotation of the rotation detection plate 142. Note that the pulse motor 140 and the rotation detection sensor 143 are fixed to a support body 51 fixed to the main body frame by a mounting bracket (not shown). The rotation detection sensor 143 is a transmission type optical sensor,
It is used to detect the origin of 40. In the rotation detection plate 142,
One slit or detection hole for detecting the origin is provided. After detecting the origin, the rotation of the pulse motor 140 is controlled by a pulse signal. With such a configuration, the cylindrical portion 32a of the flat bottomed cylindrical rotating portion 32 in FIG. 8 can be rotated forward 90 degrees (clockwise) as shown in FIG.
It is possible to reverse 90 degrees as shown in FIG. In FIG. 14, the same or corresponding parts as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The rotary drive unit of the flat bottomed cylindrical rotary unit in the direction changing mechanism may have other configurations as long as it can rotate ± 90 degrees accurately from the neutral state in FIG.

In the above embodiment, the separating and aligning pipe 55 is used as the component separating member.
Instead of 5, it is also possible to use a part-separating member that is formed in a pair of half-split cylinders and has grooves formed close to or opposed to each other.

Also, in the above embodiment, the front and back detection of the square chip component was performed by the component front and back detection sensor 120. However, a probe capable of directly contacting the electrode of the square chip component was provided, and the electrical characteristics of the square chip component were reduced. A detectable polarity detection sensor can be used. In this case, it is possible to detect the polarity of the square chip component with polarity, and control the forward and reverse rotations of the direction change mechanism according to the detection result, so that the polarity is aligned with the horizontal component feed path. Can feed square chip parts.

Although the embodiment of the present invention has been described above, it is obvious to those skilled in the art that the present invention is not limited to this and various modifications and changes can be made within the scope of the claims. Would.

[0064]

As described above, according to the square chip component supply device of the present invention, a vertically moving storage section for storing the square chip parts and a cross section through which one square chip part in the storage section can pass. A component drop passage having a through hole or groove having a shape,
A sensor provided at the middle or lower end position of the component drop passage for detecting the front and back of the component or the polarity of the component, and a direction having a rotating part for converting the direction of the square chip component ± 90 degrees and sending it to the horizontal component feed path. And a rotation mechanism of the rotary unit that receives the square chip component that has fallen down the component drop passage by a slit, according to a detection result of the sensor, and controls and selects the slit. By connecting to the directional component feed path, it is possible to accurately send out the square chip component while aligning the front and back or polarity of the component with respect to the horizontal component feed path. For this reason, it is possible to supply a square chip component that needs to be supplied with the front and back sides and the polarity being distinguished, and it is possible to expand the applicable range.

Further, the component drop passage can be disposed substantially perpendicularly to the vertically moving storage portion in which the square chip component is stored, so that the square chip component can be reliably dropped to the direction changing mechanism. The delivery of the square chip components from the direction changing mechanism to the substantially horizontal lateral component feed path can be reliably performed by using both blast and air suction.

[Brief description of the drawings]

FIG. 1 is a partially sectional front view showing the entire configuration of an embodiment of a square chip component supply device according to the present invention.

FIG. 2 is a left side view in which a part of the embodiment is omitted.

FIG. 3 is a plan view of a peripheral portion of the separation and alignment pipe of the embodiment as a cross section.

FIG. 4 is a partial plan sectional view showing a component drop passage in the embodiment.

FIG. 5 is a front view of the direction changing mechanism in the embodiment.

FIG. 6 is a plan sectional view of the same.

FIG. 7 is a rear view of a cylinder mechanism for rotationally driving the direction changing mechanism in the embodiment.

FIG. 8 is a front view of the direction changing mechanism in the embodiment in a neutral state.

FIG. 9 is a front view when the flat-bottomed cylindrical rotating unit is rotated forward by 90 degrees.

FIG. 10 is a front view when the flat-bottomed cylindrical rotating unit is rotated 90 degrees.

FIG. 11 is a front sectional view showing a state where a shutter is closed at a component pickup position P of the embodiment.

FIG. 12 is a front sectional view showing a state where a shutter is opened.

FIG. 13 is a rear view showing a mechanism for opening and closing a shutter in the embodiment.

FIG. 14 is a plan sectional view showing a modification of the rotation drive unit of the direction changing mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Supply part base 2 Suction pin 10 Main body frame 11 Precision ball slide 12 Hopper base 13 Hopper 20 Square chip component 21 Component drop passage 22 Component detection sensor 30 Direction conversion mechanism 31 Grooved disk-shaped fixing part 32 Flat bottomed cylindrical rotation Part 32a Cylindrical part 34 Horizontal fixed passage 35 Slit 42 DC motor for hopper elevating and lowering 55 Separation and alignment pipe 61 Linear chute 63 Linear base 64 Chute lid 68 Tip side chute lid 70 Lateral parts feed path 71 Parts stopper 72 Guide 73 Shutter 74, 75 Air suction hole 100 Part removal opening 110 Cylinder mechanism 120 Parts front and back detection sensor 122, 123 Lateral pipeline 125 Fume path 130 Component passage detection sensor 140 Pulse motor

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-183200 (JP, A) JP-A-5-162284 (JP, A) JP-A-60-149198 (JP, A) JP-A-59-1984 4100 (JP, A) JP-A-4-182221 (JP, A) JP-A-5-193725 (JP, A) JP-A-52-64479 (JP, U) JP-A-2-34516 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) H05K 13/02

Claims (1)

(57) [Claims] 1. A component drop passage having a vertically moving storage portion for storing a square chip component, a through-hole or groove having a cross-sectional shape through which one square chip component in the storage portion can pass, and a component drop passage. A sensor provided at the middle or lower end for detecting the front and back of the component or the polarity of the component, a fixed portion having a lateral fixed passage, a rotating portion circumscribing the fixed portion, a rotation driving portion of the rotating portion, and the rotating portion. On the other hand, a direction changing mechanism having slits formed respectively at symmetrical positions in the diameter direction and capable of accommodating one square chip component, and a lateral direction connecting to the slit in a state where the lateral fixed passage and the slit coincide with each other. The parts feeding path , the horizontal fixed path and the slit are aligned in front of each other.
Communicates with the slit located on the opposite side of the horizontal component feed path
And a rotating direction of the rotating unit that receives the square chip component dropped in the component drop passage by the slit in accordance with a detection result of the sensor, so that the slit is supplied to the lateral component component. Connected to the airway,
Supply the square chip component in the slit to the lateral component.
A square chip component supply device for sending out to a transmission path .