JP4611764B2 - Linear transport mechanism and transport apparatus equipped with the same - Google Patents

Description

  The present invention relates to a linear conveyance mechanism that conveys a rectangular parallelepiped object in a preset direction, and a conveyance apparatus including the linear conveyance mechanism.

  For example, in an appearance inspection apparatus for inspecting the appearance of a rectangular parallelepiped electronic component (object), a straight line (first) conveyance mechanism that conveys the object in a linear direction, and an object discharged from the linear conveyance mechanism A second transport mechanism for further transporting the object is provided, and the linear transport mechanism transports the object while maintaining the posture of the object in order to ensure delivery of the object between the respective transport mechanisms. It is configured as follows.

  As such a linear conveyance mechanism, one disclosed in, for example, Japanese Patent Application Laid-Open No. 7-2340 has been known, and this linear conveyance mechanism has a guide groove having a V-shaped cross section that opens on the upper surface. Includes a transport body formed linearly along a predetermined transport direction, and reciprocating drive means for applying a horizontal reciprocating motion to the transport body in the transport direction.

  The conveying body is provided with plate-like members having different friction coefficients on the inclined surfaces on the upper side and on the lower side of the guide groove, and the upper side of the guide groove is more frictional than the lower side. Is configured to be large.

  According to this linear transport mechanism, when an object is supplied onto the transport body, the transported object is transported in the transport direction along the guide groove by causing the transport body to reciprocate horizontally by the reciprocating drive means. It is transported from the upstream side toward the downstream side in the transport direction.

  At this time, the object is in a fallen state (longitudinal outer peripheral surface is in contact with each inclined surface of the guide groove) whose longitudinal direction is along the conveying direction, or its longitudinal direction is along the inclined direction of the guide groove inclined surface. In the upright state (the longitudinal outer peripheral surface is in contact with only one of the guide groove inclined surfaces), a member having a higher friction coefficient than the lower side is provided on the upper side of the guide groove inclined surface. Therefore, an object in a falling state with a low center of gravity position is conveyed as it is, but an object in a standing state with a high center of gravity position is guided by a difference in the amount of movement generated between the upper side and the lower side. Falls inside and is transported in a fallen state.

  Thus, in this linear transport mechanism, the object supplied onto the transport body is transported to the downstream side in the transport direction with its posture adjusted to the overturned state.

JP-A-7-2340

  However, in the above-described conventional linear transport mechanism that causes the object to fall in the transport direction, if the distance between the objects to be transported along the guide groove is narrow, when the object in the standing state falls over, There is a problem that the posture cannot be overturned due to overlapping with an object, and that a large horizontal reciprocating motion has to be given in order to cause the object to fall.

  The present invention has been made in view of the above circumstances, and a linear transport mechanism capable of transporting a rectangular parallelepiped object so that its longitudinal direction follows a preset transport direction, and The purpose is to provide a transporting device provided.

To achieve the above object, the present invention provides:
A transport device for transporting a rectangular parallelepiped object,
A conveying member in which a guide groove having a V-shaped cross section opening on the upper surface is formed linearly along a preset conveying direction;
A vibration applying means for supporting the conveying member and applying vibration to the conveying member;
The conveying member has a step between the upper surfaces on both sides of the guide groove, and has a section with a lower upper surface height on one side and a section with a lower upper surface height on the other side in at least a part of the conveying direction. and, and, if the height the upper surface height of the lower part, the object is in an upright state, the longitudinal outer circumferential surface thereof is conveyed in contact with the inclined surface of the guide groove continuing to the upper surface, the The present invention relates to a linear transport mechanism characterized in that it is set at a height that falls by vibration applied to the transport member from the vibration applying means and is discharged out of the transport system.

  According to this linear transport mechanism, when an object is supplied onto the transport member, the supplied object is overturned in the longitudinal direction along the transport direction by the vibration applied to the transport member from the vibration applying means. State (a state in which the outer peripheral surface in the longitudinal direction is in contact with each inclined surface of the guide groove) or a standing state in which the longitudinal direction is along the inclination direction of the inclined surface in the guide groove (the outer peripheral surface in the longitudinal direction is in contact with only one of the inclined surfaces of the guide groove In this state, the sheet is transported along the guide groove from the upstream side in the transport direction to the downstream side in the transport direction, but in the middle of the transport, the upper surfaces on both sides sandwiching the guide groove pass through a section having a step between them. .

In the section where the height of the upper surface on one side is low, the object in the fall state or the standing state along the longitudinal direction in the inclined direction of the inclined surface of the guide groove connected to the upper surface of the other side is conveyed along the guide groove. The standing object whose longitudinal direction extends along the inclined direction of the inclined surface of the guide groove connected to the upper surface of the one side falls down and is discharged out of the conveying system because the height of the upper surface of the one side is low. On the other hand, in a section where the other side upper surface is low, an object in a falling state or a standing state whose longitudinal direction extends along the inclination direction of the inclined surface of the guide groove connected to the upper surface of the one side is conveyed along the guide groove. However, the standing object whose longitudinal direction extends along the inclined direction of the inclined surface of the guide groove connected to the upper surface on the other side falls down and is discharged out of the conveying system because the upper surface height on the other side is low. .

Thus, according to this linear transport mechanism, the standing object is excluded from the guide groove when passing through the section in which the step is formed on the upper surface of the transport member, so that the object in the fall state, that is, the longitudinal Only an object whose direction is along the transport direction can be transported downstream in the transport direction. The height of each upper surface can be set based on a mathematically calculated value or an empirically obtained value.

In addition, the transport member includes a section in which the upper surfaces on both sides sandwiching the guide groove are at the same height in the transport direction, and a section having the step, and each of the sections having the step. The higher upper surface height may be set higher than the upper surface height of the same height section, and the lower upper surface height may be set lower than the upper surface height of the same height section.

Further, the present invention comprises the linear transport mechanism, and a rotary transport mechanism connected to the linear transport mechanism on the downstream side in the transport direction,
The rotary transport mechanism is
A V-shaped and annular suction groove that is provided to be rotatable about a horizontal rotation center axis set in a direction orthogonal to the transport direction of the linear transport mechanism is formed in the outer peripheral surface. A rotating body with an intake space communicating with the inside,
Rotation driving means for rotating the rotating body around the rotation center axis;
Suction means for sucking air in the intake space of the rotating body,
The rotating body is located above the downstream end of the transport member in the transport direction, and the suction groove is disposed so as to face the guide groove of the transport member. .

  According to this transport apparatus, the object transported to the downstream end in the transport direction with the longitudinal direction being along the transport direction by the linear transport mechanism is rotated around the rotation center axis by the rotary drive mechanism. At the same time, since the air in the intake space is sucked by the suction means, it is sucked and sucked into the suction groove and conveyed in the rotation direction of the rotating body.

  By the way, for example, when the rotating body of the rotary transport mechanism is connected to the side of the downstream end in the transport direction of the transport member of the linear transport mechanism, a step is generated between the downstream end of the transport member and the rotating body. Due to this step, the posture may change when the object is transferred from the downstream end to the rotating body. That is, in the linear transport mechanism, even if the longitudinal direction is transported in a fall state along the transport direction, the posture is disturbed after being discharged from the transport member and being sucked into the suction groove of the rotating body ( In other words, the suction groove may not be attracted to the suction groove when the longitudinal direction is along the rotation (conveyance) direction (the outer peripheral surface in the longitudinal direction is in contact with each inclined surface of the suction groove of the rotating body).

  Therefore, if the rotating body is provided above the conveying member as described above, the suction force of the suction means sucks the object from the guide groove side to the upper suction groove side without disturbing the posture of the object. Therefore, it can be made to adsorb | suck to the said adsorption | suction groove in the state where the longitudinal direction followed the rotation direction.

  Thus, according to the linear conveyance mechanism according to the present invention, it is possible to remove the standing object from the guide groove and convey only the overturned object downstream in the conveying direction. Further, according to the transport device according to the present invention, when the object is transferred from the linear transport mechanism to the rotary transport mechanism, the posture is disturbed by sucking the object from the guide groove side to the suction groove side above it. Since it can prevent, a target object can be made to adsorb | suck to an adsorption | suction groove in the state where the longitudinal direction followed the conveyance direction.

  Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. 1 is a front view showing a schematic configuration of an appearance inspection apparatus according to an embodiment of the present invention, FIG. 2 is a plan view of the appearance inspection apparatus shown in FIG. 1, and FIG. It is sectional drawing of the arrow AA direction in FIG.

  As shown in FIGS. 1 to 3, the appearance inspection apparatus 1 of the present example is, for example, a supply mechanism 10 that supplies an electronic component (object) having a rectangular parallelepiped shape (0.5 mm × 0.5 mm × 1.0 mm). A rotary transport mechanism 20 that sucks and transports the electronic components supplied from the supply mechanism 10 in a predetermined transport direction, and an inspection mechanism 40 that inspects the appearance of the electronic components transported in the transport direction by the rotary transport mechanism 20. And a recovery mechanism 50 that sucks and collects the electronic components conveyed by the rotary conveyance mechanism 20 according to the inspection result of the inspection mechanism 40 according to good and defective products, the supply mechanism 10, the rotary conveyance mechanism 20, and the inspection mechanism. 40, a support mechanism 60 that supports the recovery mechanism 50, and the like.

  The supply mechanism 10 includes a bowl feeder 11 that supplies electronic components, and a vibration feeder 13 (linear conveyance mechanism) that conveys electronic components supplied from the bowl feeder 11 in a predetermined linear conveyance direction (arrow direction). .

  The bowl feeder 11 is formed in a mortar shape, and a spiral conveyance path 12a is formed on an inner peripheral surface thereof. The bowl feeder 11 includes a container body 12 containing electronic components therein, and vibrates the container body 12. The electronic components are conveyed from the bottom side to the upper side while being aligned along the conveyance path 12a and discharged to the vibration feeder 13 side. The container body 12 is appropriately formed with a discharge port (not shown), and electronic components are discharged from the discharge port.

  The vibration feeder 13 includes two conveying members 14 whose longitudinal directions are arranged horizontally along the conveying direction, a vibrator 15 that supports the lower surface of each conveying member 14 and propagates vibrations thereto, and a vibrator 15. And a support base 16 on which is disposed.

  As shown in FIGS. 4 to 6, the transport member 14 is provided with a guide groove 14 a that is open on the upper surface and has a V-shaped cross section formed along the transport direction, and has an end on the upstream side in the transport direction. It is connected to the outer peripheral surface of the container body 12, and the electronic component H discharged from the bowl feeder 11 is supplied into the guide groove 14a. Further, the conveying member 14 is formed such that the upper surface 14b, 14c on both sides sandwiching the guide groove 14a is formed horizontally and at the same height, and the upper surfaces 14b, 14c on both sides are formed on inclined surfaces, respectively. A step is formed between the upper surfaces 14b and 14c so that the height of the upper surface of the one side 14b (the height of the position where the inclined upper surface 14b and the inclined surface of the guide groove 14a intersect) is low and the height of the upper surface of the other side 14c. A section having a low height (height at a position where the inclined upper surface 14c and the inclined surface of the guide groove 14a intersect) is provided in the transport direction.

  For example, when the height of each of the upper surfaces 14b and 14c is based on the height when set to the same height, the upper surface with the higher height is set higher than this reference height, and the height is The lower upper surface is set lower than this reference height. Further, the height of the upper surface with the lower height is determined based on a mathematically calculated value or an empirically obtained value, due to vibration propagating from the vibrator 15 to the conveying member 14. It is set to a height that allows it to fall over and be discharged out of the transport system. The height of the section in which the upper surfaces 14b and 14c are set to the same height is set to a height that prevents the standing electronic component H from falling.

  According to the vibration feeder 13, the bowl feeder 11 is supplied into the guide groove 14 a of the conveying member 14 and the longitudinal direction is in a fall state along the conveying direction (the outer circumferential surface in the longitudinal direction is in contact with each inclined surface of the guide groove 14 a. Electronic component H in a state where the longitudinal direction is along the inclination direction of the inclined surface of the guide groove 14a (state in which the outer peripheral surface in the longitudinal direction is in contact with only one of the inclined surfaces of the guide groove 14a) Due to the vibration propagating from the vibrator 15 to the conveying member 14, it is conveyed along the guide groove 14a downstream in the conveying direction.

  In the middle of the conveyance, the vehicle passes through a section in which a step is formed between the upper surfaces 14b and 14c, so that in a section where the height of one side 14b is low, the fall state or the longitudinal direction is guided to the other side 14c. Although the electronic component H in the standing state along the inclined direction of the inclined surface of the groove 14a is conveyed along the guide groove 14a, the electronic component H in the standing state along the inclined direction of the inclined surface of the guide groove 14a on the one side 14b is transported along the guide groove 14a. The electronic component H falls down and is discharged out of the transport system because the height of the one side 14b is low.

  Conversely, in a section where the height of the other side 14c is low, the electronic component H in a falling state or a standing state along the inclined direction of the inclined surface of the guide groove 14a on the one side 14b is along the guide groove 14a. Although being conveyed, the electronic component H in a standing state whose longitudinal direction is along the inclined direction of the inclined surface of the guide groove 14a on the other side 14c falls down and is discharged out of the conveying system because the height of the other side 14c is low. The

  Thus, in the vibration feeder 13, the electronic component H in the standing state is excluded from the guide groove 14 a when passing through the section where the step is formed on the upper surface of the conveying member 14, that is, the electronic component H in the fall state, that is, Only the electronic component H whose longitudinal direction is along the transport direction can be transported downstream in the transport direction. Moreover, since each upper surface 14b and 14c is an inclined surface, the electronic component H excluded from the guide groove 14a can be reliably dropped from the conveying member 14 and discharged. The electronic component H removed from the guide groove 14 a falls from above the conveying member 14 and is collected in the collecting box 17 disposed below the stepped section of the conveying member 14, and then the container of the bowl feeder 11. The body 12 is appropriately refluxed.

  The rotary transport mechanism 20 is disposed above the vibration feeder 13 and is transported by a first rotary transport unit 21 that sucks and transports the electronic components transported by the vibration feeder 13, and the first rotary transport unit 21. It consists of the 2nd rotation conveyance part 35 which adsorb | sucks and conveys an electronic component, and each rotation conveyance part 21 and 35 is arrange | positioned at an up-down direction, and the 1st rotation conveyance part 21 is provided in the lower side.

  The first rotary transport unit 21 is disposed on the upstream side in the transport direction of each transport member 14 of the vibration feeder 13, and has two rotators 22 disposed in vertical planes parallel to each other, and the interior is hollow. A rotary shaft 25 formed and fixed to one end side of each rotary body 22, a support member 26 supported by the support mechanism 60 and rotatably supported around the rotary shaft 25, and the rotary shaft 25. A rotation drive device 27 that rotates about the axis, and a connection member 32 that is fitted into the hollow portion from the other end of the rotation shaft 25 and is appropriately non-rotatably supported by the support mechanism 60 and the like, and the inside is hollow. The suction pump 33 is connected to the hollow portion of the connection member 32.

  The rotating body 22 includes a dish-shaped first member 23 and a second member 24 having a recessed central portion, and the first member 23 and the second member 24 face each other on the one end side of the rotating shaft 25. Fitted. As shown in FIG. 7, the first member 23 and the second member 24 are each provided with an inclined surface at the outer peripheral side edge, and each inclined surface opens to the outer peripheral surface of the rotating body 22. The adsorbing groove 22a is configured, and the first member 23 and the second member 24 are provided at a predetermined interval in the axial direction of the rotating shaft 25, and are located between the first member 23 and the second member 24. A clearance, that is, an intake space 22b communicating with the suction groove 22a is formed in the rotating body 22. In addition, this adsorption | suction groove | channel 22a is formed so that two surfaces of the electronic component H can contact | abut.

  Each rotating body 22 is in a state in which the suction groove 22a is positioned in the same plane as the guide groove 14a of the conveying member 14, and the lower suction groove 22a faces and approaches the guide groove 14a. It is arranged to be.

  A through hole 25 a that opens to the intake space 22 b of the rotating body 22 is formed on the outer peripheral surface of the rotating shaft 25, and a sealing member 25 b is attached to one end of the rotating shaft 25. The suction pump 33 sucks the air in the intake space 22b of the rotating body 22 through the hollow portion of the connecting member 32, the hollow portion of the rotating shaft 25, and the through hole 25a of the rotating shaft 25, whereby the electronic component H Is sucked and sucked into the suction groove 22a.

  The rotary drive device 27 includes a first pulley 29 fixed to an output shaft, a drive motor 28 supported by the support mechanism 60, a second pulley 30 fitted on the other end side of the rotary shaft 25, A drive belt 31 spanned between the pulleys 29 and 30, and the rotational power of the drive motor 28 is transmitted to the rotary shaft 25 via the first pulley 29, the drive belt 31 and the second pulley 30, and the rotation The shaft 25 (rotating body 22) is rotated in the direction of the arrow about the axis.

  According to the first rotary conveyance unit 21, the electronic component conveyed by the vibration feeder 13 along the guide groove 14 a to the downstream side in the conveyance direction with the longitudinal direction along the conveyance direction is absorbed by the suction pump 33. Then, it is sucked and sucked into the suction groove 22a of each rotating body 22 rotated by the rotation driving device 27.

  By the way, for example, when the rotating body 22 of the first rotary transport unit 21 is connected to the side of the downstream end in the transport direction of the transport member 14 of the vibration feeder 13, the downstream end of the transport member 14, the rotating body 22, and the like. Therefore, the step may change when the electronic component is transferred from the downstream end to the rotating body 22 due to the step. In other words, even if the vibration feeder 13 is transported in a state where the longitudinal direction is in the fall direction along the transport direction, the posture is taken after being discharged from the transport member 14 and being sucked into the suction groove 22a of the rotating body 22. Disturbed (changed) and not attracted to the suction groove 22a in a state in which the longitudinal direction is along the rotation (conveyance) direction (the outer peripheral surface in the longitudinal direction is in contact with each inclined surface of the suction groove 22a of the rotating body 22). There is.

  In this example, since the rotating body 22 is provided above the conveying member 14 as described above, the posture of the electronic component is not disturbed by the suction force of the suction pump 33 and the upper side of the electronic component from the guide groove 14a side. Is sucked to the suction groove 22a side, and is sucked to the suction groove 22a in a state where the longitudinal direction is along the rotation direction. The sucked electronic component is transported in the rotation direction of the rotating body 22.

  Thus, in the first rotary conveyance unit 21, when the electronic component is transferred from the vibration feeder 13 to the first rotary conveyance unit 21, the suction is performed without disturbing the posture of the electronic component along the conveyance direction in the longitudinal direction. The groove 22a can be sucked and adsorbed.

  The second rotary transport unit 35 has the same configuration as the first rotary transport unit 21 and will not be described in detail. However, the second rotary transport unit 35 is adsorbed on the lower side of the rotating body 22 of the first rotary transport unit 21. The electronic component transported to the upper side is sucked and transported on the lower side of the rotating body 22 of the second rotational transport unit 35. The rotating body 22 in the second rotation transport unit 35 is set to have the rotation direction opposite to that of the first rotation transfer unit 21 (in the direction indicated by the arrow) and the rotation speed to the same speed.

  In addition, the adsorption conveyance section of the electronic component in the 1st rotation conveyance part 21 is from the lower part side of the said rotary body 22 to the upper side in the rotation direction of the rotary body 22, and an electronic component is conveyed to the upper side. Then, it is attracted to the rotating body 22 of the second rotary transport unit 35. In order to attract the electronic component on the first rotation conveyance unit 21 side to the second rotation conveyance unit 35 side, for example, a blocking plate (not shown) that closes the through hole 25a in the rotation shaft 25 is non-rotatably arranged. Or by providing a suction pump 33 corresponding to each of the rotary transfer units 21 and 35 and setting the suction force of the second rotary transfer unit 35 to be larger than that of the first rotary transfer unit 21. Electronic components can be delivered from the 21 side to the second rotary conveyance unit 35 side.

  The inspection mechanism 40 is provided in the middle of transporting the electronic component in the first rotary transport unit 21, and is provided in the middle of transporting the electronic component in the first imaging unit 41 that images the electronic component and the second rotary transport unit 35. The second imaging unit 42 that images the electronic component, and a determination unit (not shown) that analyzes the image of the electronic component captured by each of the imaging units 41 and 42 and determines whether the electronic component is good or bad.

  The first imaging unit 41 and the second imaging unit 42 are appropriately attached to the support mechanism 60 by an attachment member 43, and include a plurality of CCD cameras (not shown) for imaging six surfaces of the electronic component. ing. For example, the first imaging unit 41 captures a total of three surfaces including two surfaces that are parallel to the longitudinal direction and are not in contact with the suction groove 22a of each rotating body 22 and a surface on the conveyance direction side, and the second imaging unit 42 Then, two surfaces that are parallel to the longitudinal direction and are not in contact with the suction groove 22a of each rotating body 22 (when being transferred from the first rotary transport unit 21 to the second rotary transport unit 35 to the suction groove 22a of the electronic component) The two contact surfaces are reversed, so that a total of three surfaces are imaged, that is, the two surfaces in contact with the suction groove 22a in the first rotation transport unit 21 and the surface opposite to the transport direction.

  The determination unit (not shown) analyzes the images of the six surfaces of the electronic components obtained from the CCD cameras of the imaging units 41 and 42 to determine whether each surface is good or bad, and even one of the six surfaces is defective. If detected, the electronic component is determined to be defective and a defective product recovery signal is determined. If no defect is detected, the electronic component is determined to be non-defective and the non-defective product recovery signal is output to the recovery mechanism 50. Send to.

  The recovery mechanism 50 is provided with two non-defective product recovery nozzles 51 provided on the downstream side in the transport direction with respect to the second imaging unit 42 so that the front end faces the suction groove 22a of each rotating body 22 of the second rotary transport unit 35. And a defective product collection nozzle 52, a suction pump (not shown) connected to each collection nozzle 51, 52, an on-off valve (not shown) provided on each collection nozzle 51, 52, and an on-off valve (not shown). 1), and the opening / closing valve (not shown) opens, the rotation of the second rotary conveyance unit 35 is caused by the suction action of the suction pump (not shown). The electronic component sucked in the suction groove 22a of the body 22 can be sucked into the recovery nozzles 51 and 52.

  Each of the collection nozzles 51 and 52 is appropriately attached to the support mechanism 60 by a mounting member 53, and the non-defective product collection nozzle 51 is disposed upstream of the defective product collection nozzle 52 in the transport direction. The suction pump (not shown) is set to have a suction force larger than that of the suction pump 33 of the rotary conveyance mechanism 20.

  The valve control unit (not shown) receives the non-defective product recovery signal and the defective product recovery signal transmitted from the determination unit of the inspection mechanism 40, and the electronic device that has passed through the imaging units 41 and 42 for a predetermined time from the reception. When the received recovery signal is a non-defective product recovery signal after the time until the part reaches the suction area of each recovery nozzle 51, 52), an on-off valve (not shown) of the non-defective product recovery nozzle 51 is When the signal is a defective product collection signal, the on-off valve (not shown) of the defective product collection nozzle 52 is opened. As a result, the electronic component conveyed by the second rotary conveyance unit 35 is sucked into the non-defective product collecting nozzle 51 or the defective product collecting nozzle 52, and the electronic component sucked into the non-defective product collecting nozzle 51 is collected in the non-defective product collecting box 54. On the other hand, the electronic component sucked by the defective product collection nozzle 52 is collected in the defective product collection box 55.

  The support mechanism 60 includes a first support plate 61 disposed horizontally, a second support plate 62 erected on the upper surface of the first support plate 61, and a front surface of the second support plate 62 along the vertical direction. The guide rail 63 disposed in front of the second support plate 62, a lower first moving member 64 and an upper second moving member 65 arranged in parallel in the vertical direction, and each moving member 64, First, which is fixed to the back surface of 65, is engaged with the guide rail 63 and is movable along the guide rail 63, and the position of the first moving member 64 and the second moving member 65 in the vertical direction is adjusted. The position adjustment unit 67 and the second position adjustment unit 75 are included. The bowl feeder 11, the vibration feeder 13, the collection boxes 17, 54, 55 and the suction pump 33 are placed on the upper surface of the first support plate 61.

  Through holes 64a and 65a are formed in the central portions of the moving members 64 and 65, and the support members 26 of the rotary transport portions 21 and 35 and the second pulley 30 are formed in the through holes 64a and 65a. It is fitted and fixed from the front side so that it is located between the 2nd support plate 62 and each moving member 64 and 65, and the axis line of the rotating shaft 25 follows a front-back direction. The drive motor 28 is disposed on the back surface of each moving member 64, 65 so that the first pulley 29 is positioned between the second support plate 62 and each moving member 64, 65.

  Further, the first imaging unit 41 is disposed on the front surface of the first moving member 64 via the mounting member 43, and the second imaging unit is disposed on the front surface of the second moving member 65 via the mounting member 43. 42, the non-defective product collecting nozzle 51 and the defective product collecting nozzle 52 are disposed through the mounting member 53.

  Two through holes 62a larger than the through holes 64a and 65a are formed in the second support plate 62 at positions corresponding to the formation positions of the through holes 64a and 65a of the moving members 64 and 65, The drive motor 28 and the connecting member 32 are located in the through holes 62a.

  As shown in FIGS. 1 to 3, 8, and 9, the first position adjusting unit 67 is configured so that the protruding portion 68 a protrudes forward from the front surface of the second supporting plate 62. A first projecting member 68 fixed on the back surface, a second projecting member 69 disposed below the first projecting member 68 and projecting rearward from the back surface of the first moving member 64, and an upper end portion of the first projecting member 68, the lower end portion of which is attached to the second projecting member 69, and is arranged between the tension coil spring 70 that urges the first moving member 64 upward and the guide rail 63 on the front surface of the second support plate 62. The first fixing member 71, the axis is disposed horizontally and in the front-rear direction, the first adjusting shaft 72 is rotatably supported about the axis by the first fixing member 71, and the axis is disposed vertically. The first fixing member 71 is rotatably supported about the axis. A second adjustment shaft 73 having a thread groove 73a formed on the outer periphery of the upper end portion, and a screw hole 74a that is disposed at the lower part of the back surface of the first moving member 64 and engages with the screw groove 73a of the second adjustment shaft 73. And a second fixing member 74.

  The inside of the first fixing member 71 is hollow, and in this hollow portion, a first gear 72 a provided on one end side of the first adjustment shaft 72 and a lower end portion side of the second adjustment shaft 73 are provided. A second gear 73b that is provided and meshes with the first gear 72a is accommodated.

  According to the first position adjustment unit 67, when the first adjustment shaft 72 is rotated about the axis, the rotational force is transmitted to the second adjustment shaft 73 via the first gear 72a and the second gear 73b, and the first adjustment shaft 72 is rotated. 2 The adjustment shaft 73 rotates about the shaft center. As a result, the second fixing member 74, that is, the first moving member 64 is moved from the guide rail 63 and the second fixing member 74 due to the screwed relationship between the second adjustment shaft 73 and the second fixing member 74. It is guided by the slider 66 and moves up and down.

  Since the first moving member 64 is biased upward by the tension coil spring 70, the backlash between the first gear 72a and the second gear 73b, or between the screw groove 73a and the screw hole 74a. Therefore, the position of the first moving member 64 in the vertical direction can be adjusted with high accuracy.

  Thus, in the first position adjustment unit 67, the first adjustment shaft 72 is rotated to adjust the position of the first moving member 64, so that the rotating body 22 and the vibration feeder 13 of the first rotation conveyance unit 21 are adjusted. Position adjustment with respect to the conveying member 14 can be performed with high accuracy.

  The second position adjustment unit 75 has the same configuration as the first position adjustment unit 67, and detailed description thereof is omitted. However, the second adjustment shaft 73 has a thread groove 73a formed on the outer periphery of the lower end thereof. The second gear 73b is provided on the upper end side. The second fixing member 74 is disposed on the upper surface of the back surface of the second moving member 65.

  The second position adjustment unit 75 also adjusts the position of the second moving member 65 in the vertical direction by rotating the first adjustment shaft 72 in the same manner as the first position adjustment unit 67. Position adjustment between the rotary body 22 of the rotary transport unit 35 and the rotary body 22 of the first rotary transport unit 21 can be performed with high accuracy.

  According to the appearance inspection apparatus 1 of the present example configured as described above, the electronic component housed in the container body 12 is supplied into the guide groove 14 a of the conveying member 14 of the vibration feeder 13 by the bowl feeder 11. The supplied electronic component is transported downstream in the transport direction along the guide groove 14a.

  In the middle of the conveyance, the electronic component in the standing state is discharged from the guide groove 14a by passing through a section in which a step is formed between the upper surfaces 14b and 14c of the conveyance member 14, and only the electronic component in the fall state is conveyed. It is conveyed to the downstream side. The electronic component discharged from the guide groove 14 a falls from the conveying member 14 and is collected in the collection box 17, and then appropriately refluxed into the container body 12 of the bowl feeder 11.

  The electronic component transported to the downstream side in the transport direction of the transport member 14 is sucked and sucked into the suction groove 22a of the rotating body 22 of the first rotary transport unit 21 rotated by the rotation driving device 27 by the suction action of the suction pump 33. However, since the rotating body 22 is provided above the transport member 14, the posture is not disturbed, and the suction is performed from the guide groove 14a side to the suction groove 22a side above, and the longitudinal direction rotates ( Adsorbed to the adsorption groove 22a in a state along the (conveyance) direction (a state where the outer circumferential surface in the longitudinal direction is in contact with each inclined surface of the adsorption groove 22a of the rotating body 22).

  The sucked electronic component is conveyed in the rotation direction from the lower side to the upper side by the rotation of the rotating body 22, and the outer surface of the electronic component is imaged by the first imaging unit 41 in the conveyance process. Thereafter, the electronic component transported to the upper side of the rotating body 22 is attracted to the rotating body 22 of the second rotating transport unit 35 and is similarly transported in the rotating direction by the rotation of the rotating body 22. And in the conveyance process, the 2nd imaging part 42 images the outer surface (unimaged outer surface) of the electronic component.

  The image of the outer surface of the electronic component captured by each of the image capturing units 41 and 42 is analyzed by a determination unit (not shown) to determine whether it is acceptable or not, and when it is determined to be a non-defective product, the non-defective product recovery signal is determined to be a defective product. In this case, a defective product collection signal is transmitted to a valve control unit (not shown).

  When a non-defective product collection signal is received by a valve control unit (not shown), an open / close valve (not shown) of the non-defective product collection nozzle 51 is opened and sucked and conveyed by the rotating body 22 of the second rotary conveying unit 35. The electronic component is sucked from the non-defective product collection nozzle 51 and collected in the non-defective product collection box 54. On the other hand, when a defective product collection signal is received by a valve control unit (not shown), an open / close valve (not shown) of the defective product collection nozzle 52 is opened, and an electronic component sucked and conveyed by the rotating body 22 is opened. The product is sucked from the defective product collection nozzle 52 and collected in the defective product collection box 55.

  When adjusting the positions of the rotary transport units 21 and 35, first, the position of the rotating body 22 of the first rotary transport unit 21 is set to the transport member 14 of the vibration feeder 13 by the first position adjusting unit 67. Next, the position of the rotary body 22 of the second rotary transport section 35 is adjusted with respect to the rotary body 22 of the first rotary transport section 21 whose position has been adjusted by the second position adjusting section 75. Such position adjustment is performed according to the size of the electronic component to be conveyed (inspected).

  Thus, according to the appearance inspection apparatus 1 of the present example, in the vibration feeder 13, the standing electronic component can be eliminated and only the electronic component in the fall state can be conveyed downstream in the conveying direction, and the vibration feeder At the time of delivery of the electronic component from 13 to the first rotary conveyance unit 21, it is possible to prevent the posture from being disturbed by sucking the electronic component from the guide groove 14a side to the suction groove 22a side above the longitudinal direction. Can be sucked into the suction groove 22a in a state along the transport direction. Thereby, the longitudinal direction of the electronic component can be transported along the transport direction, and the outer surface of the electronic component can be accurately imaged by each of the imaging units 41 and 42, and the appearance inspection can be performed with high accuracy.

  Further, since the moving members 64 and 65 are urged upward by the tension coil spring 70, between the first gear 72a of the first adjustment shaft 72 and the second gear 73b of the second adjustment shaft 73, Further, it is possible to prevent a decrease in positioning accuracy due to backlash between the screw groove 73a of the second adjustment shaft 73 and the screw hole 74a of the second fixing member 74, and each of the moving members 64, 65, that is, each of the rotary conveying units. The rotary bodies 22 of 21 and 35 can be positioned with high accuracy.

  As mentioned above, although one Embodiment of this invention was described, the specific aspect which this invention can take is not limited to this at all.

  In the above example, two conveying members 14 of the vibration feeder 13 and two rotating bodies 22 of the rotary conveying units 21 and 35 are provided to increase the processing capability. However, if the processing capability is not a problem, one unit is provided. You may comprise from the conveyance member 14 and the rotary body 22 of each rotation conveyance part 21 and 35. FIG.

  In the above example, the rectangular electronic component is conveyed by the vibration feeder 13 and the rotary conveying units 21 and 35 to perform the appearance inspection. However, the object is such an electronic component. It is not limited to.

It is the front view which showed schematic structure of the external appearance inspection apparatus which concerns on one Embodiment of this invention. It is a top view of the external appearance inspection apparatus shown in FIG. It is sectional drawing of the arrow AA direction in FIG. It is sectional drawing of the arrow BB direction in FIG. It is sectional drawing of the arrow CC direction in FIG. It is sectional drawing of the arrow DD direction in FIG. It is sectional drawing which showed schematic structure, such as an adsorption groove of the rotary body which concerns on this embodiment. It is sectional drawing of the arrow EE direction in FIG. It is sectional drawing of the arrow FF direction in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Appearance inspection apparatus 10 Supply mechanism 11 Bowl feeder 13 Vibrating feeder 14 Conveyance member 14a Guide groove 20 Rotation conveyance mechanism 21 1st rotation conveyance part 22 Rotating body 22a Adsorption groove 25 Rotating shaft 27 Rotation drive device 33 Suction pump 35 2nd rotation conveyance Unit 40 inspection mechanism 41 first imaging unit 42 second imaging unit 50 recovery mechanism 51 non-defective product recovery nozzle 52 defective product recovery nozzle 60 support mechanism 62 second support plate 64 first moving member 65 second moving member 67 first position adjusting unit 75 Second position adjuster

Claims (3)

A transport device for transporting a rectangular parallelepiped object,
A conveying member in which a guide groove having a V-shaped cross section opening on the upper surface is formed linearly along a preset conveying direction;
A vibration applying means for supporting the conveying member and applying vibration to the conveying member;
The conveying member has a step between the upper surfaces on both sides of the guide groove, and has a section with a lower upper surface height on one side and a section with a lower upper surface height on the other side in at least a part of the conveying direction. and, and, if the height the upper surface height of the lower part, the object is in an upright state, the longitudinal outer circumferential surface thereof is conveyed in contact with the inclined surface of the guide groove continuing to the upper surface, the A linear conveyance mechanism characterized in that the linear conveyance mechanism is set to a height that falls by vibration applied to the conveyance member from the vibration applying means and is discharged out of the conveyance system. The transport member has a section in which the upper surface on both sides sandwiching the guide groove is at the same height in the transport direction and a section having the step, and each of the sections having the step is higher The upper surface height is set higher than the upper surface height of the same height section, and the lower upper surface height is set lower than the upper surface height of the same height section. The linear conveyance mechanism according to 1. The linear conveyance mechanism according to claim 1 or 2 , and a rotation conveyance mechanism connected to the linear conveyance mechanism on the downstream side in the conveyance direction,
The rotary transport mechanism is
A V-shaped and annular suction groove that is provided to be rotatable about a horizontal rotation center axis set in a direction orthogonal to the transport direction of the linear transport mechanism is formed in the outer peripheral surface. A rotating body with an intake space communicating with the inside,
Rotation driving means for rotating the rotating body around the rotation center axis;
Suction means for sucking air in the intake space of the rotating body,
The said rotating body is located in the upper direction in the conveyance direction downstream end of the said conveyance member, and the said adsorption groove is arrange | positioned so that the guide groove of the said conveyance member may be opposed, The conveyance apparatus characterized by the above-mentioned.

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