JP6417288B2 - Component mounter, component disposal method - Google Patents

Description

  The present invention relates to a technique for discarding components attached to a head unit.

  In a component mounter that mounts a component sucked by a head unit on a substrate, if the posture of the sucked component is inappropriate, the component is discarded. At this time, the component mounter is required to be able to discard various components, depending on the size of components to be mounted on the board.

JP 2006-165281 A

  However, as pointed out in Patent Document 1, even if an operation for discarding parts such as air blow from the head unit is performed, small parts may continue to adhere to the head unit and fail to be discarded. It was. For this reason, there has been a demand for a technique capable of reliably discarding small parts adsorbed by the head unit.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique suitable for discarding small parts attracted by the head unit.

  In order to achieve the above object, the component mounter according to the present invention holds the substrate by sucking the component supply unit that supplies the component, the substrate holding unit that holds the substrate, and the component supplied by the component supply unit. A head unit mounted on a board held in the unit, a first component disposal unit that can discard both a first type component and a second type component that is smaller than the first type, and a first type component cannot be discarded A second component discarding unit dedicated to the second type of component that can discard the second type of component, a first disposal operation for discarding the component adhering to the head unit to the first component discarding unit, and adhering to the head unit A control unit that selectively executes a second discarding operation for discarding the component to be discarded to the second component discarding unit by controlling the head unit, and the control unit discards the component adhering to the head unit. Is needed vs. discarded When the first discarding operation is performed on the part, and the second type of part is included in the part to be discarded, the second type of part to be discarded adheres to the head unit after the first discarding operation is performed. And determining that the second type of component to be discarded is attached to the head unit, the second discarding operation is performed on the second type of component to be discarded.

  In the parts disposal method according to the present invention, when the parts attached to the head unit need to be discarded in order to achieve the above object, both the first kind of parts and the second kind of parts smaller than the first kind are discarded. A step of executing a first discarding operation for discarding a component adhering to the head unit to a first component discarding unit that can be discarded, and a case where a second type of component is included in the discarding target Has determined that the second type of parts to be discarded adheres to the head unit after execution of the first disposal operation and that the second type of parts to be discarded has adhered to the head unit. In such a case, the second disposal operation for discarding the parts adhering to the head unit to the second part disposal unit dedicated to the second kind of parts which cannot be discarded but the second kind of parts can be discarded. The target for disposal And a step of performing the part of the second variety.

  As described above, the present invention (component mounting machine, component disposal method) includes the first component disposal unit that can discard both the first product type and the second product type that is smaller than the first product type. When the component attached to the unit needs to be discarded, a first disposal operation for discarding the component attached to the head unit to the first component disposal unit is performed on the component to be discarded. In other words, taking advantage of the first part disposal unit that can discard both the first and second types of parts, when the part disposal becomes necessary, first the parts to be discarded are discarded to the first part disposal unit. A first discarding operation is performed for this purpose. In this way, it is possible to discard a component to be discarded with simple control such as executing the first discarding operation without particularly considering the size of the component.

  Incidentally, even if the first discarding operation is performed for the second type of parts, that is, small parts, the disposal may fail. Therefore, in the present invention, when the second type of part is included in the part to be discarded, it is confirmed whether the part of the second type to be discarded is attached to the head unit after the first discarding operation is performed. When it is determined that the second type of component to be discarded is attached to the head unit, a second disposal operation for discarding the component to the second component disposal unit dedicated to the second type of component, that is, a small component, is performed. This is executed for the second type of parts that adhere to the head unit. This makes it possible to reliably discard small parts attached to the head unit.

  In addition, the present invention can be particularly suitably applied to a component mounting machine having a configuration in which the head unit can simultaneously suck a plurality of components. That is, in such a component mounting machine, the head unit can simultaneously suck both large and small components of the first and second varieties, so there are cases where both large and small components are mixed in the disposal target. On the other hand, in the technique of the above-mentioned patent document 1, since the first component recovery station and the second component recovery station are selectively used according to the size of the component, when both large and small components are mixed in the disposal target, it is large. In order to discard the parts, it is necessary to perform a discarding operation in the first component recovery station, and it is necessary to perform a discarding operation in the second component recovery station in order to discard a small part. That is, it becomes necessary to perform the discarding operation at each of the two parts collection stations.

  On the other hand, in the present invention, taking advantage of the first part discarding part that the parts of both the first type and the second kind can be discarded, when the part discarding becomes necessary, first, the first part discarding part A first discarding operation for discarding a part to be discarded is executed. Therefore, if the small part is successfully discarded to the first part discarding unit in the first discarding operation, the disposal of both large and small parts can be completed by performing the first discarding operation only once. There is no need to execute the second discarding operation for discarding the parts. As a result, it is possible to shorten the time required for component disposal.

  In addition, the head unit sucks the component by the nozzle, the second component discarding section has a nozzle insertion hole into which the nozzle is inserted, and the second disposal operation inserts the nozzle to which the second type of component is attached into the nozzle insertion hole. The component mounter may be configured to be executed as described above.

  At this time, the control unit determines that the second-type component to be discarded is attached to the head unit after the first discard operation is performed, and the nozzle to which the second-type component to be discarded is attached is inserted into the nozzle. The component mounter may be configured to execute the second discarding operation when the size is such that it can be inserted into the hole. In such a configuration, the second disposal operation can be performed by appropriately inserting the nozzle to which the second type of component to be discarded adheres into the nozzle insertion hole of the second component discarding unit. Variety of parts can be discarded more reliably.

  In addition, even if the control unit determines that the second-type component to be discarded is attached to the head unit after the first discard operation is performed, the nozzle to which the second-type component to be discarded is attached is inserted into the nozzle. If it has a size that cannot be inserted into the hole, the component mounter may be configured to notify the operator that the component has failed to be discarded without performing the second discarding operation. As a result, the worker can promptly perform maintenance work to cope with the failure of parts disposal.

  In addition, the component mounting machine is configured so that a plurality of nozzles are arranged in the head unit, a plurality of nozzle insertion holes are arranged in the second component disposal unit, and a plurality of nozzles can be simultaneously inserted into the plurality of nozzle insertion holes. You may do it. In such a configuration, the second discarding operation can be performed simultaneously on a plurality of second-type components, and the time required for component disposal can be shortened.

  In addition, the control unit checks whether the second type of component to be discarded is attached to the head unit after executing the second discarding operation, and determines that the second type of component is attached to the head unit. The component mounter may be configured to notify the operator that the component disposal has failed. As a result, the worker can promptly perform maintenance work to cope with the failure of parts disposal.

  In addition, the control unit confirms whether the first type of component to be discarded is attached to the head unit after the first discarding operation is performed, and if the first type of component to be discarded is attached to the head unit. If determined, the component mounter may be configured to notify the operator that the component disposal has failed. As a result, the worker can promptly perform maintenance work to cope with the failure of parts disposal.

  By the way, in the present invention, since the second disposal operation is performed and the second component disposal unit is used only when the disposal of the second type of component fails in the first disposal operation, the second component disposal unit is used. The frequency of use is relatively low. Therefore, the component mounter may be configured such that a plurality of head units share one second component disposal unit. As a result, the number of second component disposal units can be suppressed, and the space saving or cost reduction of the component mounting machine can be achieved.

  At this time, the control unit may not enter the predetermined range including the second component disposal unit while one of the plurality of head units is positioned in the second component disposal unit for the second disposal operation. The component mounter may be configured to be prohibited for the head unit. As a result, even when two or more head units need the second discarding operation at the same time, they are prevented from interfering with each other trying to be located in the second component discarding unit at the same time.

  Incidentally, in such a configuration, when the necessity for the second discarding operation occurs simultaneously for two or more head units, the other head unit is in the second component disposal unit for the second discarding operation. The head unit will wait. However, according to the present invention, since the second discard operation is executed and the second component discard unit is used only when the discard of the second type of component fails in the first discard operation, the second component is used. The frequency of use of the waste section is relatively low. Therefore, the frequency of the standby of the head unit is relatively low, and it is possible to suppress time loss due to the standby of the head unit.

  Moreover, you may comprise a component mounting machine so that the 1st component disposal part and the 2nd component disposal part are comprised integrally. In such a configuration, since the first component disposal unit and the second component disposal unit are disposed relatively close to each other, the transition from the first disposal operation to the second disposal operation can be performed quickly, It can be said that it is efficient.

  In addition, the image pickup unit further includes an image pickup unit that can take an image of a part that is attached to the head unit and adheres to the head unit, and the control unit attaches a second type of component to be discarded to the head unit based on an image pickup result of the image pickup unit. The component mounter may be configured so as to confirm whether or not it is working. In such a configuration, the imaging unit attached to the head unit moves with the head unit. Therefore, regardless of the location of the head unit, the component attached to the head unit can be quickly imaged by the imaging unit, and the control unit attaches the second type component to be discarded to the head unit based on the imaging result. You can quickly check whether you are doing.

  According to the present invention, it is possible to reliably discard small parts that are adsorbed by the head unit.

It is a top view which shows typically the partial structure of the component mounting machine concerning one Embodiment of this invention. It is a block diagram which shows partially the electric constitution with which the component mounting machine of FIG. 1 is provided. It is a side view which shows typically the partial structure of the head unit with which the component mounting machine of FIG. 1 is equipped, and an imaging part. It is a perspective view which shows the external appearance structure of a 2nd components disposal part. It is sectional drawing which shows partially the cross section of the 2nd components disposal part of FIG. It is a flowchart which shows an example of the mounting turn performed with the component mounting machine of FIG. It is a flowchart which shows an example of the operation | movement of the discard sequence performed with the flowchart of FIG.

  FIG. 1 is a plan view schematically showing a partial configuration of a component mounter according to an embodiment of the present invention. FIG. 2 is a block diagram partially showing an electrical configuration of the component mounter of FIG. In FIG. 1 and the drawings shown below, an XYZ orthogonal coordinate system including a substrate transport direction X, a width direction Y, and a vertical direction Z is shown as appropriate. Further, the arrow side of each coordinate axis is referred to as one side, and the opposite side of the arrow of each coordinate axis is appropriately referred to as the other side.

The component mounter 1 includes a control unit 100 (FIG. 2) that controls the entire apparatus. The control unit 100 includes a CPU (Central Processing Unit) and a RAM (Random Access).
A main control unit 110 configured by a memory) and a storage unit 120 configured by a storage device such as a hard disk drive (HDD). Then, the drive control unit 130, the image processing unit 140, the pressure control unit 150, the blow control unit 160 and the input / output control unit 170 provided in the control unit 100 are stored in the program stored in the storage unit 120 by the main control unit 110. Based on the control, the board S on which components are mounted is produced.

  As shown in FIG. 1, the component mounter 1 has a schematic configuration in which a component supplied by a component supply unit 3 is transferred by a head unit 4 to a substrate S loaded in a transfer lane 2. More specifically, two transport lanes 2 extending in parallel with the substrate transport direction X, and two component supply units 3 provided on each side of the transport lane 2 in the width direction Y, The component mounter 1 includes four head units 4.

  Each of the two transfer lanes 2 has a common configuration, and a board carrying-in operation for carrying the board S from the upstream side in the board carrying direction X and stopping at a predetermined stop position 20 and component mounting at the stop position 20 The substrate unloading operation is performed to unload the received substrate S downstream in the substrate transport direction X. At this time, each transport lane 2 has a configuration capable of stopping the substrate S at each of two different stop positions 20 in the substrate transport direction X, for example. Each of the two transfer lanes 2 is composed of two transfer conveyors 21 extending in parallel with the board transfer direction X. In the component mounter 1, the four transfer conveyors 21 are arranged in the width direction Y. Out of the four transport conveyors 21, the outer two are fixed conveyors fixed in the width direction Y, and the inner two are movable conveyors movable in the width direction Y. Therefore, the width of the transfer lane 2 can be adjusted according to the width of the substrate S by moving the movable conveyor 21 in the width direction Y.

  Incidentally, the mode of substrate transfer in the two transfer lanes 2 is not limited to that illustrated in FIG. That is, FIG. 1 illustrates a case where two stop positions 20 are set in each of the two transfer lanes 2 and the substrate is transferred while setting a total of four stop positions 20. Regarding the transfer lane 2, one stop position 20 can be set on the right side and the other on the left side, so that a total of two stop positions 20 can be set. In addition, when the substrate S cannot be executed simultaneously in the two transfer lanes 2 due to the wide width of the substrate S, the substrate transfer is executed only in one of the two transfer lanes, and the substrate is transferred on the other side. There is no need to execute the conveyance.

  Two component supply units 3 are arranged in the substrate conveyance direction X on each side of the conveyance lane 2 in the width direction Y, and the component mounter 1 is provided with a total of four component supply units 3. Each component supply unit 3 has a configuration in which a plurality of tape feeders 31 are arranged in the substrate transport direction X. Each tape feeder 31 has a schematic configuration in which a tape for storing small-sized electronic components such as an integrated circuit (IC), a transistor, a capacitor and the like is wound around a reel, and the electronic lane 2 is intermittently conveyed from the reel. Electronic parts are supplied by feeding to the side end. The type of feeder constituting the component supply unit 3 is not limited to a tape-type feeder, and may be a tray-type feeder that supplies electronic components while being placed on a tray.

  One head unit 4 is provided for each of the four component supply units 3, and a total of four head units 4 are provided. Each of the four head units 4 has three mounting heads 41 arranged at equal intervals in the X direction. A Z-axis servo motor 42 and an R-axis servo motor 43 are attached to each mounting head 41. Therefore, the mounting head 41 can be moved up and down by driving the mounting head 41 in the vertical direction Z by the Z-axis servomotor 42. Further, the mounting head 41 can be rotated by driving the mounting head 41 in the rotation direction by the R-axis servo motor 43.

  Further, a pressure switching mechanism 44 communicates with each mounting head 41. The pressure switching mechanism 44 is connected to a utility such as a positive pressure source or a negative pressure source provided in a factory where the component mounting machine 1 is installed, and the pressure control unit 150 controls the pressure switching mechanism 44 to implement the mounting. Positive pressure, negative pressure, or atmospheric pressure can be applied to the nozzle 45 (FIG. 3) attached to the tip of the head 41.

  Therefore, when picking up a component from the component supply unit 3, the drive control unit 130 controls the Z-axis servo motor 42 to lower the mounting head 41 and supply the nozzle 45 at the tip of the mounting head 41 to supply the component. It is made to contact | abut to the components which the part 3 supplies. Subsequently, the pressure control unit 150 controls the pressure switching mechanism 44 to apply a negative pressure to the nozzle 45 at the tip of the mounting head 41 and suck the component onto the nozzle 45. From this state, the drive control unit 130 controls the Z-axis servo motor 42 to raise the mounting head 41, so that components can be picked up.

  Further, when the picked-up component is mounted on the substrate S, the drive control unit 130 controls the Z-axis servo motor 42 to lower the mounting head 41 and is attracted to the nozzle 45 at the tip of the mounting head 41. The component thus placed is brought into contact with the substrate S. The pressure control unit 150 controls the pressure switching mechanism 44 to apply a positive pressure to the nozzle 45 at the tip of the mounting head 41. As a result, the component is detached from the nozzle 45 and mounted on the substrate S.

  In this way, each head unit 4 picks up a component from the corresponding tape feeder 31 by the nozzle 45 at the tip of the mounting head 41 and mounts it on the substrate S stopped at the stop position 20.

  In addition, each head unit 4 is equipped with an imaging unit 5 described later with reference to FIG. Then, based on the result of imaging the vicinity of the tip of the nozzle 45 of the mounting head 41 provided in the corresponding head unit 4 by the imaging unit 5, the image processing unit 140 determines whether the component adsorption state by the mounting head 41 is good or bad. . In the case where the suction state of the component by the mounting head 41 is inappropriate (for example, the posture of the sucked component is inclined), the component is the first component discarding unit 6 or the second component discarding unit 7. Discarded.

  One first component disposal unit 6 is provided for each component supply unit 3. Each first component disposal unit 6 is disposed between the corresponding component supply unit 3 and the transport lane 2. For example, the minimum component P2 having a long side length of 0.2 mm to 0.4 mm, and the minimum component P2. Both parts P (FIG. 3) of the larger normal part P1 can be discarded. In the present embodiment, the minimal component P2 is a component having a size that can be inserted into a nozzle insertion hole 71 described later, and the normal component P1 is a component having a size that cannot be inserted into the nozzle insertion hole 71. The first component discarding unit 6 is a box-shaped container having a single opening wide enough to contain all of the three mounting heads 41 arranged in the head unit 4 in plan view.

  Then, when it is necessary to discard the components, the head unit 4 moves above the first component discarding unit 6 corresponding to the component supply unit 3 that supplied the components to be discarded, and the three mounting heads 41 are moved to the first. The one-component disposal unit 6 is positioned directly above the opening. Subsequently, the pressure control unit 150 controls the pressure switching mechanism 44 to apply a positive pressure (first positive pressure) to the nozzle 45 at the tip of the mounting head 41, so that air is blown from the nozzle 45 and the component to be discarded. Is detached from the mounting head 41. The part thus detached falls from the mounting head 41 and is discarded to the first component disposal unit 6.

  One second component disposal unit 7 is provided for each pair of two component supply units 3 facing each other in the width direction Y. Each second component discarding unit 7 is disposed between two component supply units 3 constituting a corresponding pair, and more specifically, the width direction Y of the corresponding two component supply units 3. Between the component supply unit 3 on one side and the transport lane 2. The second component discarding unit 7 is configured exclusively for the disposal of the minimal component P2. The normal component P1 cannot be discarded, and only the minimal component P2 can be discarded. In the second component disposal unit 7, four nozzles 45 insertion holes 71 are arranged in the board conveyance direction X, and the nozzles 45 of a single mounting head 41 can be inserted into and removed from each nozzle 45 insertion hole 71. . Among these four nozzle insertion holes 71, the interval between the three nozzle insertion holes 71 on one side in the substrate transport direction X is equal to the interval at which the three mounting heads 41 of the head unit 4 are aligned. The three mounting heads 41 of the head unit 4 can be simultaneously inserted into the nozzle insertion holes 71. The details of the configuration of the second component disposal unit 7 will be described later with reference to FIGS. 4 and 5.

  When the parts need to be discarded, the head unit 4 moves above the second parts disposal unit 7 corresponding to the parts supply unit 3 that supplied the minimal parts P2 to be discarded, and sucks the minimal parts P2. The mounting head 41 is positioned directly above the nozzle insertion hole 71. Subsequently, the drive control unit 130 controls the Z-axis servomotor 42 to lower the mounting head 41 and insert the nozzle 45 that sucks the minimal component P2 to be discarded into the nozzle insertion hole 71 together with the minimal component P2. . In this state, the pressure control unit 150 controls the pressure switching mechanism 44 to apply a positive pressure (second positive pressure) to the nozzle 45 inserted into the nozzle insertion hole 71, so that air is blown from the nozzle 45 and discarded. The target minimal component P2 is detached from the mounting head 41. The minimal component P2 detached in this manner falls from the mounting head 41 and is discarded in the transport lane 2. Incidentally, the second positive pressure applied to the nozzle 45 at the time of component disposal at the second component disposal unit 7 is larger than the first positive pressure applied to the nozzle 45 at the time of component disposal at the first component disposal unit 6. The time for applying the second positive pressure to the nozzle 45 at the time of component disposal at the second component disposal unit 7 is the time to apply the first positive pressure to the nozzle 45 at the time of component disposal at the first component disposal unit 6. Longer than.

  Moreover, in the component mounting machine 1, the head drive mechanism 8 is provided in order to move the head unit 4 as described above. Specifically, four head drive mechanisms 8 are provided corresponding to the four component supply units 3. The four head driving mechanisms 8 each drive one head unit 4.

  Each head driving mechanism 8 has a configuration in which an X-axis beam 81 extending in the X direction is supported so as to be movable in the Y direction while supporting the head unit 4 so as to be movable in the X direction. An X-axis ball screw 82 attached to the head unit 4 and extending in the X direction, and an X-axis servo motor 83 that rotationally drives the X-axis ball screw 82 are attached to the X-axis beam 81. When the X-axis servo motor 83 rotates the X-axis ball screw 82, the head unit 4 to which a nut (not shown) that is screwed into the X-axis ball screw 82 is fixed moves along the X-axis beam 81 in the X direction. Each head drive mechanism 8 includes a Y-axis ball screw 84 to which one end of an X-axis beam 81 is attached and extends in the Y direction above the transport lane 2, and a Y-axis servo motor that rotationally drives the Y-axis ball screw 84. 85. When the Y-axis servo motor 85 rotates the Y-axis ball screw 84, the X-axis beam 81 to which a nut (not shown) that is screwed to the Y-axis ball screw 84 is fixed moves in the Y direction along with the head unit 4. The other end of the X-axis beam 81 is slidably supported by one of two rails 86 that straddle the Y direction above the center of the two conveyance lanes 2 in the X direction.

  Each head drive mechanism 8 configured in this way rotates between the X-axis servo motor 83 and the Y-axis servo motor 85 as appropriate, so that it is between the corresponding component supply unit 3 and the substrate S above the stop position 20. Thus, the head unit 4 in charge can be moved. As a result, the head unit 4 can pick up the components supplied by the component supply unit 3 with the mounting head 41 and transfer them to the substrate S stopped at the stop position 20.

  Incidentally, in FIG. 1, the Y-axis ball screw 84 of each head drive mechanism 5 on one side (lower side) in the width direction Y is a length from the component supply unit 3 on one side to the distance between the two transport lanes 2 in the width direction Y. Have Therefore, the head unit 4 driven by these head driving mechanisms 8 can move in the width direction Y from the one-side component supply unit 3 to between the two transport lanes 2.

  On the other hand, in FIG. 1, the Y-axis ball screw 84 of each head drive mechanism 8 on the other side (upper side) in the width direction Y extends beyond the transport lanes 2 from the component supply unit 3 on the other side in the width direction Y. It has a length that extends to the front of the component supply unit 3 on one side. Therefore, the head unit 4 driven by the head driving mechanism 8 moves in the width direction Y from the other-side component supply unit 3 to the front side of the one-side component supply unit 3 beyond both conveyance lanes 2. be able to. Thus, the movement range of each head unit 4 on the other side in the width direction Y is set wider than the movement range of each head unit 4 on one side in the width direction Y. This is because each head unit 4 can access the second component disposal unit 7.

  FIG. 3 is a side view schematically showing a partial configuration of a head unit and an imaging unit included in the component mounter of FIG. 1. In the component mounter 1, four pairs of the head unit 4 and the imaging unit 5 are provided. Since each pair has the same configuration, only one pair will be described here. The head unit 4 includes a mounting head 41 extending downward, and a nozzle 45 is detachably attached to the lower end of the mounting head 41. The head unit 4 is provided with a ball screw 46 extending in the substrate transport direction X and an imaging unit drive motor 47 that drives the ball screw 46. Then, the imaging unit 5 is screwed into the ball screw 46.

  The imaging unit 5 includes a frame 51 that is screwed onto the ball screw 46, an illumination 52, and a camera 53, and the illumination 52 and the camera 53 are fixed to the frame 51. The frame 51 has a shape extending downward from the head unit 4 and supports an illumination 52 and a camera 53 facing each other in the width direction Y across the tip of the nozzle 42 in a side view of FIG. Therefore, the illumination 52 and the camera 53 can be driven in the substrate transport direction X integrally with the frame 51 by rotating the ball screw 46 by the imaging unit drive motor 47.

  When determining the suction state of the component, the drive control unit 130 controls the imaging unit drive motor 47 so that one of the three mounting heads 41 included in the head unit 4 is the one to be imaged. The camera 53 is made to face the nozzle 45 from the width direction Y. Subsequently, an image of the vicinity of the tip of the nozzle 45 is acquired by imaging the nozzle 45 with the camera 53 while irradiating light from the illumination 52 to the nozzle 45. The image obtained in this way is transmitted to the image processing unit 140, and the image processing unit 140 determines whether the component 45 is attracted or not based on the image. On the other hand, the drive control unit 130 adjusts the position of the image pickup unit 5 by controlling the image pickup unit drive motor 47 except when determining the component suction state, so that the three mounting heads 41 included in the head unit 4 can be changed to the board. The imaging unit 5 is retracted to a retracted position deviated in the transport direction X (for example, in the lower left head unit 4 in the figure, the image capturing unit 5 is at the retracted position).

  FIG. 4 is a perspective view showing an external configuration of the second component disposal unit. FIG. 5 is a cross-sectional view partially showing a cross section of the second component disposal unit of FIG. The second component disposal unit 7 includes a support frame 72 erected in the vertical direction Z, a nozzle insertion unit 73 attached to the upper part of the support frame 72, a component collection container 74 attached to the lower part of the support frame 72, and nozzle insertion. A part recovery pipe 75 and an air blow mechanism 76 (gas blow part) for connecting the part 73 and the part recovery container 74 are provided.

  In the nozzle insertion portion 73, four nozzle insertion holes 71 arranged in the substrate transport direction X are extended in the vertical direction Z, respectively. The opening 71 </ b> A at the upper end of the nozzle insertion hole 71 has a circular shape and opens upward on the upper surface of the planar nozzle insertion portion 73. Only the minimal component P2 can be inserted into the nozzle insertion hole 71, and the normal component P1 cannot be inserted. The nozzle insertion hole 71 includes an upper nozzle introduction space 77 and a lower blow space 78.

  The nozzle introduction space 77 includes a columnar portion 771 having a columnar shape extending downward from the opening 71A and a constricted portion 772 having a truncated cone shape that becomes narrower downward from the lower end of the columnar portion 771. The diameter of the lower end of the nozzle introduction space 77 is shorter than the diameter of the opening 71A. In this way, the inner wall of the nozzle introduction space 77 has a constricted shape 773 that tapers at the lower end portion as the distance from the opening 71A increases. Incidentally, the nozzle introduction space 77 is shorter than the insertion length of the nozzle 45 into the nozzle insertion hole 71 in the insertion / removal direction of the nozzle 45 with respect to the nozzle insertion hole 71, that is, in the vertical direction Z. Therefore, as shown in FIG. 5, the tip portion of the nozzle 45 inserted into the nozzle insertion hole 71 protrudes from the nozzle introduction space 77 to the blow space 78.

  The blow space 78 includes an extended portion 781 that widens from the lower end of the constricted portion 772 downward, a cylindrical portion 782 having a cylindrical shape that extends downward from the lower end of the extended portion 781, and a lower portion of the cylindrical portion 782 downward. A reduction portion 783 having a truncated cone shape that becomes narrower as it goes. A blowout port 761 of the air blow mechanism 76 is open on the inner wall of the extended portion 781 in the horizontal direction. The air blow mechanism 76 is connected to a positive pressure source that is a utility provided in a factory where the component mounting machine 1 is installed, and the blow control unit 160 (FIG. 2) controls the air blow mechanism 76 to Air (gas) can be blown from the outlet 761 into the expansion portion 781 using positive pressure from the pressure source.

  Further, an airflow control surface 784 is formed on the inner wall of the extension portion 781 at a portion facing the air outlet 761 from the horizontal direction. This airflow control surface 784 is a slope facing the opposite side of the nozzle introduction space 77 in the insertion / removal direction of the nozzle 45 with respect to the nozzle insertion hole 71, that is, the vertical direction Z, and the airflow blown out from the blowout port 761 to the blow space 78. It functions to change the direction away from the nozzle introduction space 77.

  In the blow space 78, the air outlet 761 and the airflow control surface 784 face each other in the horizontal direction with the tip of the nozzle 45 inserted into the nozzle insertion hole 71 and protruding from the nozzle introduction space 77 into the expansion portion 781. Then, the airflow blown out in the horizontal direction from the outlet port 761 blows away the components attached to the tip of the nozzle 45 and then strikes the airflow control surface 784 and changes its direction downward. As a result, a downward airflow is generated in the blow space 78, and the parts detached from the nozzle 45 by the air blow ride on the airflow toward the lower cylindrical portion 782 and the reduction portion 783.

  Incidentally, as described above, air blow is also performed from the nozzle 45 at the time of component disposal in the second component disposal unit 7. That is, the component is detached from the nozzle 45 in response to the airflow blown downward from the nozzle 45 and the airflow blown in the horizontal direction from the blowout port 761.

  The cylindrical part 782 and the reduction part 783 are arranged so that the respective center lines are horizontally deviated with respect to the center line of the nozzle introduction space 77. Further, the reduction part 783 has a truncated cone shape as described above, and the lower end part of the reduction part 783 is connected to the hollow passage in the component recovery pipe 75. Thus, the inner wall of the blow space 78 has a shape 785 that tapers smoothly toward the part recovery pipe 75 side at the lower end thereof.

  Then, the part that has reached the lower end of the contracting part 783 rides on the air current, passes through the hollow passage of the part recovery pipe 75, and is recovered in the part recovery container 74. As described above, the nozzle insertion portion 73 is provided with four nozzle insertion holes 71. Correspondingly, the component collection pipe 75 is attached to each of the four nozzle insertion holes 71, and each nozzle insertion hole 71 communicates with a common component collection container 74 via the respective component collection pipe 75. ing. The part collection container 74 is provided with a mesh filter 741, and the airflow that has passed through the part collection pipe 75 from the nozzle insertion hole 71 passes through the mesh filter 741 to the outside. The parts collection container 74 is configured to be detachable from the support frame 72 by a latch mechanism or a fastening member such as a bolt or a nut, and the parts collection container 74 is removed from the support frame 72. It also comes off from the part collection pipe 75.

  FIG. 6 is a flowchart showing an example of a mounting turn executed by the component mounting machine of FIG. FIG. 7 is a flowchart showing an example of the operation of the discard sequence executed in the flowchart of FIG. Each step in FIG. 6 and FIG. 7 is executed under the control of the main control unit 110 based on a program stored in the storage unit 120. That is, the main control unit 110 causes the head unit 4 to repeatedly perform the mounting turn of FIG. 6 to mount a predetermined component on the board S, and when the component disposal becomes necessary, the disposal sequence of FIG. 7 is appropriately performed. Run.

  In step S <b> 101, the head unit 4 moves above the corresponding component supply unit 3 and causes the mounting head 41 to pick up the component. At this time, for example, the components can be picked up by all three mounting heads 41 included in the head unit 4. In step S <b> 102, an image of the tip of the nozzle 45 of each mounting head 41 is acquired by the imaging unit 5, and the quality of the component suction state by the nozzle 45 of each mounting head 41 is confirmed based on the result. In step S103, it is determined on the basis of the confirmation result in step S102 whether or not there is a component that needs to be discarded due to a suction failure, that is, a component to be discarded is among the components that are attracted to the head unit 4. If there is no part to be discarded (in the case of “NO” in step S103), the head unit 4 moves above the substrate S, mounts each component to be sucked on the substrate S, and ends the mounting turn. To do.

  On the other hand, if there is a part to be discarded (in the case of “YES” in step S103), the process proceeds to step S105 to execute the discard sequence (FIG. 7). In step S <b> 201, a first discarding operation for discarding the components adhering to the head unit 4 to the first component discarding unit 6 is executed. Specifically, the drive control unit 130 moves the head unit 4 above the first component disposal unit 6. Subsequently, of the three mounting heads 41 of the head unit 4, the pressure control unit 150 selectively applies positive pressure (first positive pressure) to the nozzle 45 of the mounting head 41 that sucks the component to be discarded. Air blow from the nozzle 45 is executed.

  In step S202, it is confirmed whether or not all the components to be discarded have been successfully discarded by the first discarding operation in step S201. Specifically, the imaging unit 5 captures an image in the vicinity of the tip of the nozzle 45 that has attracted the component to be discarded. Then, the image processing unit 140 determines whether or not a component is detached from the nozzle 45 based on the imaging result of the imaging unit 5. If all of the parts to be discarded have been successfully discarded ("YES" in step S202), the process proceeds to step S207, while if there is a part to be discarded that has adhered to the nozzle 45 and failed to be discarded (in step S202). If “NO”), the process proceeds to step S203.

  In step S <b> 203, it is determined whether or not the nozzle 45 to which the disposal target component that has failed to discard has a size that can be inserted into the nozzle insertion hole 71 of the second component disposal unit 7. That is, the storage unit 120 stores nozzle data 121 in which the size of the nozzle 45 attached to the mounting head 41 is recorded, and the main control unit 110 stores the nozzle insertion hole of the corresponding nozzle 45 based on the nozzle data 121. Whether or not insertion into 71 is possible is determined. If it is determined that the corresponding nozzle 45 cannot be inserted into the nozzle insertion hole 71 (NO in step S203), the process proceeds to step S209. In addition, when a plurality of disposal target parts have failed to be discarded, if there is even one nozzle 45 that cannot be inserted into the nozzle insertion hole 71 among the plurality of nozzles 45 to which the disposal target part has adhered, “NO” in step S203. Judge. On the other hand, when it is determined that the corresponding nozzle 45 can be inserted into the nozzle insertion hole 71 (“YES” in step S203), the process proceeds to step S204. Note that, when a plurality of disposal target parts have failed to be discarded, “YES” is determined in step S203 only when all of the plurality of nozzles 45 to which the disposal target parts are attached can be inserted into the nozzle insertion holes 71.

  In step S204, it is determined whether or not the part to be discarded that has failed to be discarded has a size that can be inserted into the nozzle insertion hole 71 of the second part discarding unit 7, that is, whether it is a minimal part P2. That is, the storage unit 120 stores component data 122 in which the size of each component is recorded, and the main control unit 110 inserts the component to be discarded into the nozzle insertion hole 71 that has failed to be discarded based on the component data 122. Determine whether or not. Then, when it is determined that the corresponding part to be discarded cannot be inserted into the nozzle insertion hole 71 (in the case of “NO” in step S204), the process proceeds to step S209. If a plurality of parts to be discarded fail to be discarded, if any one of the parts to be discarded cannot be inserted into the nozzle insertion hole 71, “NO” is determined in step S204. On the other hand, if it is determined that the relevant part to be discarded can be inserted into the nozzle insertion hole 71 (“YES” in step S204), the process proceeds to step S205. If a plurality of parts to be discarded have failed to be discarded, “YES” is determined in step S204 only if all of the parts to be discarded can be inserted into the nozzle insertion hole 71.

  In step S <b> 205, a second disposal operation for discarding the components attached to the head unit 4 to the second component disposal unit 7 is executed. Specifically, the drive control unit 130 inserts the nozzle 45 to which the disposal target component adheres into the nozzle insertion hole 71 of the second component disposal unit 7. Subsequently, the pressure control unit 150 selectively applies positive pressure (second positive pressure) to the nozzle 45 of the mounting head 41 to which the disposal target component is attached among the three mounting heads 41 of the head unit 4. When air is blown from the nozzle 45, the blow control unit 160 executes air blow from the outlet 761. Note that the time for blowing air from the nozzle 45 in the second discarding operation is longer than the time for blowing air from the nozzle 45 in the first discarding operation.

  In step S206, it is confirmed in the same manner as in step S202 whether or not all of the parts to be discarded have been successfully discarded by the second discarding operation in step S205. If all the parts to be discarded have been successfully discarded (in the case of “YES” in step S206), the process proceeds to step S207, while if there is a part to be discarded that has adhered to the nozzle 45 and failed to be discarded (in step S206). If “NO”), the process proceeds to step S209.

  Thus, if “YES” is determined in step S202, or “YES” is determined in all of steps S203, S204, and S206, and it is confirmed that the disposal target component is not attached to the head unit 4, the step is performed. S207 is executed. In this step S207, it is confirmed whether or not there is a mounting head 41 that adsorbs a mounting target component among the three mounting heads 41 of the head unit 4. Then, if there is no mounting target component (in the case of “NO” in step S207), the discard sequence in FIG. 7 is terminated, while if there is a mounting target component (in the case of “YES” in step S207), step After the component to be mounted is mounted on the substrate S in S208, the discard sequence in FIG.

  On the other hand, if “NO” is determined in step S202, and further “NO” is determined in any of steps S203, S204, and S206, it is confirmed that the parts to be discarded attached to the head unit 4 cannot be discarded. After executing steps S209 and S210, the discard sequence in FIG. 7 is terminated. That is, the main control unit 110 stops the mounting turn that is being executed (step S209), and controls the display 9 via the input / output control unit 170, so that the display 9 (notification unit) indicates that the component disposal has failed. To inform the operator.

  As described above, in the present embodiment, the first component discarding unit 6 that can discard both the normal component P1 (first type of component) and the minimal component P2 (second type of component) smaller than the normal component P1 is provided. Has been. When the component attached to the head unit 4 needs to be discarded, the first disposal operation for discarding the component attached to the head unit 4 to the first component disposal unit 6 is performed on the component to be discarded. (Step S201). In other words, taking advantage of the first part discarding unit 6 that both the normal part P1 and the very small part P2 can be discarded, the parts to be discarded are first sent to the first part discarding part 6 when the parts need to be discarded. The first discarding operation for discarding is performed. In this way, it is possible to discard a component to be discarded with simple control such as executing the first discarding operation without particularly considering the size of the component.

  By the way, regarding the minimal component P2, the disposal may fail even if the first disposal operation is performed. Therefore, if the component to be discarded includes the minimal component P2, it is confirmed whether or not the minimal component P2 to be discarded is attached to the head unit 4 after the first discard operation is performed (steps S202 and S204). When it is determined that the minimal component P2 to be discarded is attached to the head unit 4, the second disposal operation for discarding the component to the second component disposal unit 7 dedicated to the minimal component P2 is attached to the head unit 4. This is executed for the minimal component P2 to be performed (step S205). Thereby, it is possible to reliably discard the minimal component P2 to which the head unit 4 adheres.

  In addition, the configuration of the present embodiment is particularly suitable for the component mounting machine 1 having a configuration in which the head unit 4 can simultaneously suck a plurality of components as described above. That is, in such a component mounting machine 1, since the head unit 4 can simultaneously suck both the normal component P1 and the very small component P2, there are cases where both the large and small components are mixed in the disposal target. On the other hand, in the technique of the above-mentioned patent document 1, since the first component recovery station and the second component recovery station are selectively used according to the size of the component, when both large and small components are mixed in the disposal target, it is large. In order to discard the parts, it is necessary to perform a discarding operation in the first component recovery station, and it is necessary to perform a discarding operation in the second component recovery station in order to discard a small part. That is, it becomes necessary to perform the discarding operation at each of the two parts collection stations.

  On the other hand, in this embodiment, taking advantage of the first component discarding unit 6 that both the normal component P1 and the extremely small component P2 can be discarded, first, when the component disposal becomes necessary, the first component A first discarding operation for discarding a part to be discarded is performed in the discarding unit 6. Therefore, if the minimal component P2 is successfully discarded to the first component disposal unit 6 in the first disposal operation, the disposal of both large and small components can be completed by performing the first component disposal unit 6 only once. It is not necessary to execute the second disposal operation for discarding the parts to the parts disposal unit 7. As a result, it is possible to shorten the time required for component disposal.

  Furthermore, since the second disposal operation is executed only when the disposal of the minimal component P2 fails in the first disposal operation, the frequency of the second disposal operation is suppressed to a low level. On the other hand, as described above, the time for blowing air from the nozzle 45 in the second discarding operation is longer than the time for blowing air from the nozzle 45 in the first discarding operation, and it takes a long time to complete the second discarding operation. Therefore, it is not preferable to frequently perform the second discarding operation from the viewpoint of shortening the cycle time. On the other hand, this embodiment has an advantage that the execution frequency of the second discarding operation is suppressed to be small, and the cycle time can be shortened.

  In the present embodiment, the control unit 100 determines that the minimal component P2 to be discarded is attached to the head unit 4 after the first discarding operation is performed (“NO” in step S202), and is yet to be discarded. When the nozzle 45 to which the minimal component P2 is attached has a size that can be inserted into the nozzle insertion hole 71 (“YES” in step S203), the second discarding operation is executed. In such a configuration, the second component discarding unit 7 can be executed by properly inserting the nozzle 45 to which the minimal component P2 to be discarded adheres into the nozzle insertion hole 71 of the second component discarding unit 7. Can be disposed of more reliably.

  Further, even if the control unit 100 determines that the minimal component P2 to be discarded is attached to the head unit 4 after the execution of the first discarding operation, the nozzle 45 to which the minimal component P2 to be discarded adheres is a nozzle insertion hole. If it has a size that cannot be inserted into 71, the second discarding operation is not executed, and the operator is informed that the component has failed to be discarded (step S210). As a result, it is possible to prevent the nozzle 45 having the wrong size from being forcibly inserted into the nozzle insertion hole 71 and damage the nozzle 45 or the nozzle insertion hole 71. The maintenance work can be performed promptly.

  Further, the plurality of nozzles 45 arranged in the head unit 4 can be simultaneously inserted into the plurality of nozzle insertion holes 71 arranged in the second component disposal unit 7. With such a configuration, the second discarding operation can be performed simultaneously on the plurality of minimal components P2, and the time required for component disposal can be shortened.

  Further, the control unit 100 checks whether or not the minimal component P2 to be discarded is attached to the head unit 4 after the second discarding operation is performed (step S206), and if the minimal component P2 is attached to the head unit 4. When the determination is made (“NO” in step S206), the operator is notified that the component has failed to be discarded (step S210). As a result, the worker can promptly perform maintenance work to cope with the failure of parts disposal.

  Further, the control unit 100 checks whether or not the normal component P1 to be discarded is attached to the head unit 4 after the first discarding operation is performed (step S204), and the normal component P1 to be discarded is attached to the head unit 4. If it is determined that the component has been discarded ("NO" in step S204), the operator is notified that the component has failed to be discarded (step S210). As a result, the worker can promptly perform maintenance work to cope with the failure of parts disposal.

  In addition, an imaging unit 5 is provided which can image a component attached to the head unit 4 and attached to the head unit 4, and the control unit 100 determines the minimal component P2 to be discarded based on the imaging result of the imaging unit 5. Is attached to the head unit 4. In such a configuration, the imaging unit 5 attached to the head unit 4 moves with the head unit 4. Therefore, regardless of the location of the head unit 4, the component attached to the head unit 4 can be quickly imaged by the imaging unit 5, and the control unit 100 determines that the minimal component P2 to be discarded is the head unit based on the imaging result. 4 can be quickly confirmed.

  Further, the second component disposal unit 7 (component disposal device) has a blowout port 761 opened on the inner wall of the nozzle insertion hole 71, and is directed to the component attached to the tip of the nozzle 45 inserted into the nozzle insertion hole 71. Air is blown from the outlet 761. In addition, an air flow control surface 784 is provided in a portion of the inner wall of the nozzle insertion hole 71 that faces the blowout port 761, and the direction of the airflow that comes out of the blowout port 761 and hits the airflow control surface 784 is changed to a direction away from the opening 71A. It is done. As a result, an air flow is generated in the nozzle insertion hole 71 in the direction away from the opening 71A. Therefore, the component removed from the nozzle 45 can be put on this airflow and blown away in a direction away from the opening 71A. Therefore, it is possible to suppress the occurrence of a situation in which the minimal component P2 wound up by the air flow accompanying the air blow pops out from the gap generated between the nozzle 45 and the nozzle insertion hole 71, and the minimal component P2 adsorbed by the head unit 4 is discarded. It is suitable for.

  Further, the inner wall of the nozzle insertion hole 71 has a constricted shape 773 that tapers away from the opening 71A between the opening 71A and the outlet 761 in the direction in which the nozzle 45 is inserted and removed, that is, in the vertical direction Z. Is provided. Accordingly, the constriction shape 773 can prevent the minimal part P <b> 2 from passing from the blow space 78 to the nozzle introduction space 77. As a result, it is possible to suppress the occurrence of a situation in which the minimal component P2 wound up by the air flow accompanying the air blow pops out from the gap generated between the nozzle 45 and the nozzle insertion hole 71, and the minimal component P2 adsorbed by the head unit 4 is discarded. It is suitable for.

  Incidentally, the minimal component P2 detached from the nozzle 45 by the air blow is collected in the component collection container 74 via the component collection pipe 75. On the other hand, the inner wall of the nozzle insertion hole 71 has a shape 785 that tapers smoothly toward the component recovery tube 75 at the end on the component recovery tube 75 side. Therefore, the minimum component P2 can be smoothly flowed from the nozzle insertion hole 71 to the component recovery pipe 75 and recovered in the component recovery container 74, which is suitable for discarding the minimum component P2 adsorbed by the head unit 4. Yes.

  The component collection container 74 is configured to be detachable from the component collection tube 75. Therefore, when the parts collection container 74 is filled with the minimal parts P2, the parts collection container 74 can be removed from the parts collection pipe 75, and the minimal parts P2 in the parts collection container 74 can be removed. It can be said that this is a preferable configuration for the second component disposal unit 7 that collects the minimal component P2 that adsorbs the component in the component collection container 74.

  As described above, in this embodiment, the component mounter 1 corresponds to an example of the “component mounter” of the present invention, and the component supply unit 3 corresponds to an example of the “component supply unit” of the present invention. Lane 2 corresponds to an example of the “substrate holding portion” of the present invention, the head unit 4 corresponds to an example of the “head unit” of the present invention, the nozzle 45 corresponds to an example of the “nozzle” of the present invention, The one-part disposal section 6 corresponds to an example of the “first-part disposal section” of the present invention, the second-part disposal section 7 corresponds to an example of the “second-part disposal section” of the present invention, and the nozzle insertion hole 71 is provided. It corresponds to an example of the “nozzle insertion hole” of the present invention, the imaging unit 5 corresponds to an example of the “imaging unit” of the present invention, the control unit 100 corresponds to an example of the “control unit” of the present invention, and is a normal part P1 corresponds to an example of “parts of the first type” of the present invention, and the minimum part P2 is “part of the second type” of the present invention. It corresponds to an example of ".

  The present invention is not limited to the above-described embodiment, and various modifications can be made to the above-described one without departing from the spirit of the present invention. For example, in the above embodiment, the second component discarding unit 7 is used because the second discarding operation is executed only when the discarding of the minimal component P2 fails in the first discarding operation. The frequency of use of 7 is relatively low. Accordingly, one second component disposal unit 7 is shared by the two head units 4 facing in the width direction Y. Thereby, it is possible to reduce the number of second component disposal units 7 and to save space or reduce the cost of the component mounting machine 1.

  At this time, the control unit 100 includes a predetermined range including the second component disposal unit 7 while one of the plurality of head units 4 is positioned in the second component disposal unit 7 for the second disposal operation. Another head unit 4 may be prohibited from entering. As a result, even when two or more head units 4 require the second disposal operation at the same time, they are prevented from interfering with each other trying to be located in the second component disposal unit 7 at the same time.

  Incidentally, in such a configuration, when the necessity of the second disposal operation occurs simultaneously for the two head units 4, one head unit 4 is located in the second component disposal unit 7 for the second disposal operation. In the meantime, the other head unit 4 waits. However, according to the above embodiment, the second component discarding unit 7 is used by executing the second component discarding operation 7 only when the disposal of the minimal component P2 fails in the first discarding operation. The frequency of use of the discard unit 7 is relatively small. Therefore, the frequency with which the standby of the head unit 4 occurs is relatively low, and time loss due to the standby of the head unit 4 can be suppressed.

  However, it is not always necessary to share one second component disposal unit 7 among the plurality of head units 4. Therefore, one second component disposal unit 7 can be arranged for each head unit 4.

  Moreover, the 1st components disposal part 6 and the 2nd components disposal part 7 can also be comprised integrally. In such a configuration, since the first component discarding unit 6 and the second component discarding unit 7 are disposed relatively close to each other, the transition from the first discarding operation to the second discarding operation can be quickly performed. Can be said to be efficient.

  Further, the imaging of the component suction state has been executed by the imaging unit 5 mounted on the head unit 4. However, for example, the head unit 4 is imaged from the lower side by a camera provided separately from the head unit 4 and provided below the head unit 4 so that the suction state of the component to the nozzle 45 is imaged. Also good.

  Moreover, in the said embodiment, the operator was alert | reported by displaying on the display 9 that component disposal failed. However, it is possible to notify the worker by various notification means such as a warning light or a warning sound.

  By the way, in the above-described embodiment, when the parts need to be discarded, the first discarding operation is executed first, and when the disposal of the minimal part P2 by the first discarding operation is failed, the second discarding operation is executed. . As a result, a technique suitable for disposal of the minimal component P2 adsorbed by the head unit 4 is realized. However, the above embodiment includes a configuration that can realize a technique suitable for discarding the minimal component P2 attracted by the head unit 4 without depending on the control. This will be described in detail as follows.

  For example, in Patent Document 1, a parts collection station is provided exclusively for discarding small parts. The component collection station has an insertion hole through which the nozzle can be inserted and removed, and the component attached to the tip of the nozzle is discarded by blowing gas to the tip of the nozzle inserted into the insertion hole. However, in such a configuration, there are cases in which a small part wound up by an air flow accompanying the blow of gas jumps out of a gap generated between the nozzle and the insertion hole.

  On the other hand, the above-described parts disposal apparatus has an opening that is open to the outside, and a nozzle insertion portion provided with a nozzle insertion hole through which the nozzle can be inserted and removed from the outside, and a nozzle insertion hole And a gas blowing part for blowing gas from the blowing port toward a part attached to the tip of the nozzle inserted into the nozzle insertion hole. The nozzle insertion part has a nozzle insertion hole. A portion of the inner wall facing the air outlet has an air flow control surface, and changes the direction of the air flow coming out of the air outlet and hitting the air flow control surface in a direction away from the opening.

  Such a component disposal apparatus has a blowout opening opened on the inner wall of the nozzle insertion hole, and blows gas from the blowout opening toward the component attached to the tip of the nozzle inserted into the nozzle insertion hole. In addition, an airflow control surface is provided in a portion of the inner wall of the nozzle insertion hole facing the air outlet, and the direction of the airflow that has come out of the air outlet and hits the airflow control surface is changed in a direction away from the opening. As a result, an air flow in a direction away from the opening is generated in the nozzle insertion hole. Therefore, the component removed from the nozzle can be put on this air flow and blown away in the direction away from the opening. Therefore, it is possible to suppress the occurrence of a situation in which a small part wound up by an air flow accompanying gas blow-out occurs from a gap generated between the nozzle and the nozzle insertion hole, and is suitable for discarding a small part adsorbed by the head unit. It has become.

  In addition, the component disposal apparatus includes a nozzle insertion portion having an opening that opens to the outside, and a nozzle insertion hole through which the nozzle can be inserted and removed from the outside, and an inner wall of the nozzle insertion hole And a gas blowing part for blowing gas from the blowing port toward a part adhering to the tip of the nozzle inserted into the nozzle insertion hole. Between the opening and the outlet in the insertion / removal direction, it has a constricted shape that tapers away from the opening.

  Such a component disposal apparatus has a blowout opening opened on the inner wall of the nozzle insertion hole, and blows gas from the blowout opening toward the component attached to the tip of the nozzle inserted into the nozzle insertion hole. In addition, the inner wall of the nozzle insertion hole is provided with a constriction shape that tapers away from the opening between the opening and the outlet in the direction in which the nozzle is inserted and removed. Therefore, it is possible to suppress the occurrence of a situation in which a small part wound up by an air flow accompanying gas blowing pops out from a gap generated between the nozzle and the nozzle insertion hole, and is suitable for discarding a small part adsorbed by the head unit. It has become.

  By the way, in patent document 1, the small components which removed from the nozzle by the blow of gas are collect | recovered by the components filter through a guide tube. In such a parts collection station, since the parts are small, there are cases where the parts are bounced off by a step on the wall surface before reaching the guide tube and jump out of a gap formed between the nozzle and the insertion hole. Therefore, it is preferable to smoothly flow the component removed from the nozzle to the guide tube and collect it in the component filter.

  On the other hand, the above-described parts disposal apparatus has an opening that is open to the outside, and a nozzle insertion portion that is provided with a nozzle insertion hole through which the nozzle can be inserted and removed from the outside. It has a blowout opening that is open on the inner wall, and is connected to the nozzle insertion hole, connected to the nozzle insertion hole, connected to the nozzle insertion hole, and a gas blowing part that blows gas from the blowout opening toward the part attached to the tip of the nozzle inserted into the nozzle insertion hole. A part recovery pipe for guiding the part detached from the inserted nozzle to the part recovery container, and the inner wall of the nozzle insertion hole tapers smoothly toward the part recovery pipe side at the end of the part recovery pipe side Has a shape.

  Such a component disposal apparatus has a blowout opening opened on the inner wall of the nozzle insertion hole, and blows gas from the blowout opening toward the component attached to the tip of the nozzle inserted into the nozzle insertion hole. Then, the parts removed from the nozzle by this gas blowing are collected in the parts collection container through the parts collection pipe. Moreover, the inner wall of the nozzle insertion hole has a shape that tapers smoothly toward the component collection tube at the component collection tube end. Therefore, it is possible to smoothly flow the component from the nozzle insertion hole to the component recovery pipe and collect it in the component recovery container, which is suitable for discarding small components that are adsorbed by the head unit.

  By the way, in patent document 1, the small components which removed from the nozzle by the blow of gas are collect | recovered by the components filter through a guide tube. Such a configuration has an advantage that a small part separated from the nozzle can be collected in the part filter without being scattered outside, and there is a problem that the part filter is filled with parts as the number of discarded parts increases. .

  On the other hand, the above-described parts disposal apparatus has an opening that is open to the outside, and a nozzle insertion portion provided with a nozzle insertion hole through which the nozzle can be inserted and removed from the outside, and a nozzle insertion hole A gas blower that blows gas from the blowout port toward a part that adheres to the tip of the nozzle inserted into the nozzle insertion hole, a part collection container, a nozzle insertion hole, and a part A part recovery pipe is connected to the recovery container and guides the part detached from the nozzle inserted into the nozzle insertion hole to the part recovery container, and the part recovery container is configured to be detachable from the nozzle insertion hole. .

  Such a component disposal apparatus has a blowout opening opened on the inner wall of the nozzle insertion hole, and blows gas from the blowout opening toward the component attached to the tip of the nozzle inserted into the nozzle insertion hole. Then, the parts removed from the nozzle by this gas blowing are collected in the parts collection container through the parts collection pipe. As a result, there is an advantage that small parts detached from the nozzle can be collected in the parts collection container without being scattered outside. In addition, the component collection container is configured to be detachable from the component collection tube. Therefore, when the parts collection container is full of parts, the parts collection container can be removed from the parts collection tube, the parts in the parts collection container can be removed, and the small parts that the head unit adsorbs can be removed. It can be said that this is a suitable configuration for the parts disposal device to be recovered.

DESCRIPTION OF SYMBOLS 1 ... Component mounting machine 2 ... Conveyance lane (board holding part)
DESCRIPTION OF SYMBOLS 3 ... Component supply part 4 ... Head unit 45 ... Nozzle 5 ... Imaging part 6 ... 1st component disposal part 7 ... 2nd component disposal part (component disposal apparatus)
71 ... Nozzle insertion hole 71A ... Opening 73 ... Nozzle insertion part 74 ... Parts collection container 75 ... Parts collection pipe 76 ... Air blow mechanism (gas blow part)
761 ... Air outlet 784 ... Airflow control surface 100 ... Control unit (control part)
S ... Board P ... Part P1 ... Normal part (Part 1)
P2 ... minimal parts (parts of the second type)

Claims (13)

A component supply unit for supplying components;
A substrate holder for holding the substrate;
A head unit that sucks the component supplied by the component supply unit and mounts it on the substrate held by the substrate holding unit;
A first part disposal unit capable of discarding both a first kind of part and a second kind of part smaller than the first kind;
A second component discarding unit dedicated to the second type of component that cannot discard the first type of component and can discard the second type of component;
A first discarding operation for discarding a component adhering to the head unit to the first component discarding unit, and a second discarding operation for discarding a component adhering to the head unit to the second component discarding unit. A control unit that executes selectively by controlling the head unit,
The control unit performs the first discarding operation on the component to be discarded when the component adhering to the head unit needs to be discarded, and the component of the second type is included in the component to be discarded. Confirms whether the second type of parts to be discarded adheres to the head unit after execution of the first discarding operation, and determines that the parts of the second type to be discarded adhere to the head unit Then, a component mounting machine that executes the second discarding operation on the component of the second type to be discarded.   The component mounting machine according to claim 1, wherein the head unit can adsorb a plurality of components simultaneously.   The head unit adsorbs a component by a nozzle, the second component discarding unit has a nozzle insertion hole into which the nozzle is inserted, and the second discarding operation has the nozzle to which the second type of component is attached. The component mounting machine according to claim 1, wherein the component mounting machine is executed by being inserted into a nozzle insertion hole.   The control unit determines that the second-type component to be discarded is attached to the head unit after the first discard operation is performed, and the nozzle to which the second-type component to be discarded is attached The component mounting machine according to claim 3, wherein the second discarding operation is performed when the second disposal operation has a size that can be inserted into the nozzle insertion hole.   Even if the control unit determines that the second type of component to be discarded is attached to the head unit after the first discarding operation is performed, the second type of component to be discarded is attached to the head unit. 5. The component mounting machine according to claim 4, wherein when the nozzle has a size that cannot be inserted into the nozzle insertion hole, the second discarding operation is not performed and the worker is notified that the component disposal has failed.   The plurality of nozzles are arranged in the head unit, the plurality of nozzle insertion holes are arranged in the second component disposal unit, and the plurality of nozzles can be simultaneously inserted into the plurality of nozzle insertion holes. 5. The component mounting machine according to 5.   The control unit confirms whether the second type of component to be discarded is attached to the head unit after the second discarding operation is performed, and the second type of component is attached to the head unit. The component mounter according to any one of claims 1 to 6, wherein when the determination is made, the operator is notified that the component disposal has failed.   The control unit checks whether the first type of parts to be discarded is attached to the head unit after the first discarding operation is performed, and the parts of the first type to be discarded are attached to the head unit. The component mounting machine according to any one of claims 1 to 7, wherein when the determination is made, the operator is notified that the component disposal has failed.   The component mounting machine according to claim 1, wherein a plurality of the head units share one second component discarding unit.   The control unit enters the predetermined range including the second component discarding unit while one of the plurality of head units is positioned in the second component discarding unit for the second discarding operation. The component mounting machine according to claim 9, wherein other head units are prohibited.   The component mounting machine according to any one of claims 1 to 10, wherein the first component discarding unit and the second component discarding unit are integrally configured. An imaging unit capable of imaging a part attached to the head unit and attached to the head unit;
The component according to any one of claims 1 to 11, wherein the control unit confirms whether the second type component to be discarded is attached to the head unit based on an imaging result of the imaging unit. Mounting machine. When it is necessary to discard the parts attached to the head unit, the parts attached to the head unit are discarded to the first part disposal section where both the first kind parts and the second kind parts smaller than the first kind can be disposed. Performing a first discarding operation on the parts to be discarded;
A step of checking whether the second type of parts to be discarded adheres to the head unit after the first discarding operation when the second type of parts are included in the target to be discarded;
When it is determined that the second type of component to be discarded is attached to the head unit, the first type of component cannot be discarded and the second type of component can be discarded. And a step of executing the second discarding operation for discarding the component adhering to the head unit to the second component discarding unit dedicated to the second type of component to be discarded.

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