JP5503724B1 - Component reversing unit - Google Patents

Abstract

An apparatus for shortening the processing time required to invert a component upside down is provided.
A tray transport system includes a reversing unit that reverses components mounted on a tray in units of rows. The reversing unit includes a first holder that holds a plurality of parts arranged in at least one row along a first axis, and a symmetrical position that sandwiches the first axis with respect to the first holder. A second holder that holds a plurality of components side by side, a first drive unit that rotates the first holder about a first axis, and in synchronization with and independently of the first drive unit And a second drive unit that rotates the second holder about the first axis.
[Selection] Figure 1

Description

  The present invention relates to an apparatus including a function for inverting a component upside down.

  Patent Document 1 describes that electronic component pickup, upside down, and horizontal movement can be performed in parallel, and that the height of delivery to the mounting apparatus can be made the same even when upside down. Has been. Therefore, in Patent Document 1, an electronic component is picked up from a component preparation unit in a face-up state, and a pickup head that moves in a horizontal direction and an electronic component that is moved in the horizontal direction by the pickup head are centered on a horizontal axis. By means of reversing means for reversing the electronic component by rotating the rotating member halfway around the axis, and the reversed electronic component in the face-down state, or by the pickup head A horizontal transfer means for receiving the electronic component in the face-up state directly transferred by the receiving unit and transferring the electronic component to the mounting apparatus; the holding unit receives the electronic component before reversing; It is described that the height of the receiving portion of the horizontal transfer means to be passed is substantially the same.

JP 2009-194306 A

  When processing the front and back sides of the parts stored in the tray or performing an appearance inspection on the front and back sides, it is necessary to flip the parts upside down. On the other hand, if the parts are reversed one by one as in the technique disclosed in Patent Document 1, man-hours are required, which is not appropriate in the mass production process. Therefore, there is a demand for an apparatus that can invert components efficiently.

  According to one embodiment of the present invention, a first holder that holds a plurality of components arranged in at least one row along a first axis, and the first holder at a symmetrical position that sandwiches the first axis with respect to the first holder. A second holder for holding a plurality of components side by side along the axis, a first drive unit for rotating the first holder about the first axis, in synchronization with the first drive unit, and A component reversing unit having a second drive unit that independently rotates a second holder about a first axis.

  In this component reversing unit, the first drive unit and the second drive unit are synchronized with each other to rotate the first holder and the second holder around the common first axis, thereby allowing a plurality of components to be rotated. Can be reversed while being sandwiched between the first and second holders. Further, by independently rotating the first and second holders, the first and second holders can be opened and closed, and a plurality of parts can be dispensed and received simultaneously. Therefore, a plurality of parts can be reversed in a short time.

  The first holder and the second holder include a plurality of recesses that respectively hold a plurality of components, and each bottom portion of the plurality of recesses includes a portion that defines the position of each component, and each of the plurality of recesses The opening preferably includes a portion that leads to a portion that defines the individual component. Since the positioning of the plurality of parts in the respective recesses of the first and second holders is automatically performed, it becomes easy to put in and out the plurality of parts with the pickup.

When the first holder and the second holder are opened and closed across the first shaft, the component reversing unit has a bottom portion of each of the plurality of recesses of the lower holder of the first holder and the second holder. having a suction unit for sucking the individual components in lower by contacting the underside of the respectively lower holder through holes for suction provided. In the first holder and the second holder, each of the suction through holes is independently rotated away from the suction unit. It is easy to further improve the positioning accuracy of each component, and it is possible to suppress the component from moving when the first or second holder is opened and closed.

  One of the different aspects of the present invention is the above-described component reversing unit, a receiving unit that receives a tray in which a plurality of components are stored in a matrix, and a first holder that holds the plurality of components arranged in the tray in a row unit. And a pickup unit that moves to the center. A plurality of parts can be moved and reversed in units of tray rows (one or a plurality of rows).

  The pickup unit preferably includes a function of moving a plurality of parts from the second holder to the tray or different trays in a row unit after moving the plurality of parts to the first holder in a row unit. Since a plurality of parts can be carried in and out of the part reversing unit in one round trip, the tact time can be shortened.

  The pickup unit preferably includes a sensor that operates when the distance between each of the plurality of parts when picking up is shorter than a predetermined value. Abnormalities in the storage state of parts can be detected by the height of the parts.

One of the different aspects of the present invention is a method including reversing a component by an apparatus including a component reversing unit, and the reversing includes the following steps.
Accept multiple parts in the first holder.
A plurality of parts received by the first holder are respectively sucked downward by a suction unit through a suction through hole .
Each of the through holes for suction of the second holder is separated from the suction unit and rotated independently of the first holder by the second drive unit to face the first holder and the second holder.
The first drive unit and the second drive unit rotate the first holder and the second holder around the first axis in synchronism with each other, and each of the suction holes of the first holder is set to the suction unit. overlapping a first holder on the second holder away from, Rukoto that Sessu the respective through holes for the suction of the second holder to the suction unit.
A plurality of parts received by the second holder are respectively sucked downward by a suction unit through a suction through hole .
The first holder is rotated independently of the second holder by the first drive unit, to return the first holder in a position to accept a plurality of parts, the through-hole for sucking the first holder Contact each with a suction unit .

  When reversing a plurality of parts stored in the tray, accepting the plurality of parts may include moving the plurality of parts arranged in the tray to the first holder in a row unit by the pickup unit. desirable. Further, between receiving the plurality of parts and facing the first holder and the second holder, moving the plurality of parts from the second holder to the tray or different trays in a row unit. It is effective to include. Tact time can be shortened.

  Moving to the tray preferably includes rotating the pickup unit 180 degrees in the horizontal direction while holding a plurality of components. The direction in the front-rear direction of the inverted part can be restored. When a plurality of parts are transported to the first holder by the pickup unit, that is, before the plurality of parts are set in the holder of the part reversing unit, the front and rear may be switched by rotating 180 degrees in the horizontal direction.

The top view which shows the layout of a tray conveyance system. The top view which expands and shows the layout of an inversion unit. The side view which shows a mode that components are conveyed. The figure which shows the outline | summary of a pickup unit. FIGS. 5A to 5C are views showing a process of reversing a component by a reversing unit. FIGS. 6A to 6C are views showing a process of reversing a component by a reversing unit. The figure which shows the timing of operation | movement of a pick-up unit, and operation | movement of an inversion unit. The flowchart which shows the process outline | summary of a tray conveyance system.

  FIG. 1 shows an outline of a tray transport system having a component reversing function. This tray transport system 1 functions as a conveyor, and performs the same or different processing on a tray 3 that stores a plurality of pieces (parts, workpieces) 2 such as semiconductor parts and electronic / electric parts from a device that performs a certain process. It constitutes a part of the route for transporting to the device to be performed. The tray 3 includes concave portions 4 that individually store a plurality of components 2 in a matrix shape. An example of a process connected by a route including the tray transport system 1 is a process of performing soldering, welding, or engraving on each part 2 in the tray 3 or performing an appearance inspection of each part 2.

  The tray transport system 1 includes a receiving side (receiving unit, load unit) 70 that receives a tray 3 in which a plurality of parts 2 are stored in a matrix, and a paying side (payout unit, unload unit) 75 that pays out the tray 3. The component reversing unit (reversing unit) 10 disposed between the receiving unit 70 and the dispensing unit 75 is included. The receiving unit 70 includes a belt conveyor 71, a tray guide 72, and a conveyor driving motor 73. The payout unit 75 includes a belt conveyor 76, a tray guide 77, and a motor 78 for driving the conveyor.

  The tray transport system 1 further includes a pickup unit 60 that transports a plurality of components 2 from the tray 3 to the component reversing unit 10. The pickup unit 60 picks up a plurality of components 2 arranged in a line in the width direction y of the tray 3, transports them to the component reversing unit 10, and returns the components 2 whose top and bottom are reversed by the component reversing unit 10 to the tray 3. The pickup unit 60 includes a suction unit 61 that sucks a plurality of components 2, a drive unit 62 that moves the suction unit 61 in the direction of the component reversing unit 10, in this example, the traveling direction x of the tray 3, and the suction unit 61 in the horizontal direction. And a rotating unit 63 that rotates 180 degrees. The tray transport system 1 further includes a control unit 80 that controls the receiving unit 70, the dispensing unit 75, the pickup unit 60, and the component reversing unit 10.

  FIG. 2 shows the component reversal unit 10 extracted and enlarged. The component reversing unit 10 includes a first holder 11 that holds the plurality of components 2 in a line along the first axis 19, and a symmetrical position with the first axis 19 interposed between the first holder 11 and the first holder 11. The second holder 12 that holds the plurality of components 2 side by side along the first axis 19, the first drive unit 13 that rotates the first holder 11 around the first axis 19, and the first The second drive unit 14 rotates the second holder 12 around the first shaft 19 in synchronization with and independently of the drive unit 13.

  The first holder 11 and the second holder 12 include a plurality of recesses 15 that respectively hold the plurality of components 2, and the bottom portions (bottom surfaces) 15 a of the plurality of recesses 15 define the positions of the individual components 2. Part 15b to be included. Furthermore, each opening 15 c of the plurality of recesses 15 includes a portion 15 d that leads to a portion 15 b that defines the individual component 2. In this example, the outer peripheral shape of the component 2 is a trapezoid, and the first holder 11 and the second holder 12 are formed with a plurality of recesses 15 arranged in a line along the first shaft 19. Yes. The number of the plurality of concave portions 15 arranged in a row is the same as or larger than the number of the components 2 arranged in the width direction of the tray 3, so that the components 2 arranged in the width direction of the tray 3 can be reversed in a batch. It has become.

  The bottom 15a of each recess 15 has a trapezoidal size that matches the outer periphery of the component 2 as a whole, and the edge of the bottom 15a is a portion 15b that defines the position of the component 2. When the components 2 are dropped into the individual recesses 15, the orientation (position) of the components 2 in the holders 11 and 12 is determined at a predetermined position. The opening 15c of the recess 15 is a trapezoid that is slightly larger than the outer peripheral size of the component 2, and a tapered guide portion 15d is provided from the opening 15c toward the bottom surface 15a. The component 2 is unlikely to interfere with the opening 15c, and the component 2 that has passed through the opening 15c is guided to the bottom surface 15a along the guide portion 15d and reaches the bottom surface 15a having a shape that matches the outer periphery of the component 2. The position is automatically determined.

  The four corners 15e of the recess 15 are rounded and chamfered so as to be slightly larger than the component 2 by a drill or the like, so that the corner portion of the component 2 and the corner portion of the recess 15 do not interfere with each other. Therefore, in this example, the positioning of the component 2 by the concave portion 15 is not performed at the corner, but is performed mainly at the side or the edge portion where damage is unlikely to occur even if there is mechanical contact with each other. Yes. The diameter of the chamfering hole 15e is preferably 1.0 mm or more, and is preferably half or less of the area of the bottom 15a.

  The recesses 15 of the first holder 11 and the second holder 12 are connected by a groove 18 extending along the shaft 19. The groove 18 connects portions of the recess 15 that are not related to the positioning and the like, reduces the weight of the holders 11 and 12, and reduces the moment of inertia, and the air flow between the recesses 15. And function as a route. The groove 18 may not be provided.

  A hole 15h for sucking the component 2 is provided at the bottom 15a of each recess 15. These holes 15h are connected to the lower suction unit 31 when the first holder 11 and the second holder 12 are opened with the first shaft 19 interposed therebetween, and function as a unit that adsorbs the component 2. By forcibly adsorbing the component 2 to the bottom 15a of one holder (the lower holder), it is possible to suppress the component 2 from being attached to the opened holder by static electricity or friction. The suction method may be a method of sucking air into a negative pressure or a method of adsorbing by a magnetic force or an electric field. However, in the case of an electrical component, air is sucked in order to avoid an influence on a circuit or the like. The method is suitable.

  The first drive unit 13 includes a drive motor 21, a first shaft 22 extending along the first shaft 19, and bearings 23 and 24. The second drive unit 14 includes a drive motor 25, a second shaft 26 extending along the first axis 19, and bearings 27 and 28. The first shaft 22 and the second shaft 26 are arranged separately (oppositely) along the common axis 19 to the left and right (up and down in the drawing), and the first shaft 22 is the first shaft 22. The second shaft 26 is mechanically connected to the second holder 12. The second shaft 26 is mechanically connected to the holder 11. The bearings 24 and 28 that support the ends of the shafts 22 and 26 opposite to the motors are housed in the same housing 29, and are basically a common and integral bearing. Accordingly, the first shaft 22 and the second shaft 26 can be supported along the first axis 19 in a state in which an axial deviation is unlikely to occur.

  The pair of motors 21 and 25 may be actuators that can rotate the shafts 22 and 26, respectively, and may be air cylinders or the like. The mechanism for driving the shafts 22 and 26 is such that a common motor is connected to the shafts 22 and 26 via a power transmission mechanism such as a train wheel, and the shafts 22 and 26 are rotated independently and synchronously. It may be.

  FIG. 3 shows a state in which the component 2 mounted on the tray 3 is turned upside down and stored again in the tray transport system 1 and moved from the receiving side to the dispensing side. In this example, the component 2 is turned upside down and then returned to the same tray 3, but may be moved to a different tray 3.

  Explaining the processing in the n-th column, the pickup unit 60 moves the suction unit 61 to the position Pn in the n-th column of the tray 3 and picks up the n-th part 2 by the suction unit 61. Next, the suction unit 61 is moved to the position P <b> 1 of the first holder 11 of the reversing unit 10, and the n-th part 2 is set in the first holder 11. Further, the suction unit 61 is moved to the position P2 of the second holder 12, the upside down part 2 is picked up from the second holder 12, and moved to the position Pn-1 of the (n-1) th row of the tray. The part 2 that has been turned upside down (front and back) is returned to the (n−1) th row of the tray 3. In the case of the front / rear or left / right asymmetric part 2, the front / rear of the part 2 is adjusted by rotating the suction unit 61 180 degrees in the horizontal direction while returning the suction unit 61 from the position P 2 to the position Pn−1.

  Of the holders of the reversing unit 10, the holder in which the component 2 is first set may be the first holder 11 or the second holder 12. If the component 2 is front-rear or left-right asymmetric, the component 2 is set in a holder (in this example, the first holder 11) in which the direction of the component 2 mounted on the tray 3 matches the shape of the concave portion 15 of the holder. can do. Further, when setting the holder, the suction unit 61 may be rotated by 180 degrees in the horizontal direction, and the parts may be set in the holder (the second holder 12 in this example) whose front and rear directions are reversed. When all the components 2 stored in the tray 3 are stored again in an upside down (front and back) state, the tray 3 passes through the upper part of the reversing unit 10 and is moved from the receiving side 70 to the paying side 75, It is supplied to a device that performs the following processing.

  The receiving side 70 and the payout side 75 of the tray transfer system 1 may be reversed, and the reversing unit 10 may be disposed so as to be sandwiched between the receiving side 70 and the payout side 75 and along the transfer path. Or may be arranged in parallel with the conveyance path at a position away from each other. The pickup unit 60 may be any unit that supplies the component 2 stored in the tray 3 to the reversing unit 10 and returns (moves) the reversed component 2 to the tray 3. Various configurations are possible depending on the relationship.

  FIG. 4 shows the suction unit 61 of the pickup unit 60. The suction unit 61 includes a plurality of suction heads 64 as many as or more than the number of recesses 15 provided in the holder of the reversing unit 10, and a sensor 65 that monitors the vertical position of the suction head 64. An example of the sensor 65 is an optical sensor. When the distance between each component 2 and the suction unit 61 when picking up is shorter than a predetermined value and the position of the suction head 64 moves beyond a predetermined range, the sensor 65 is moved to the suction head. 64 motions are detected. If the component 2 that the suction head 64 is trying to suck does not fit in the concave portion 4 of the tray 3 or the concave portion 15 of the holder and protrudes or the position is not horizontal, the suction head 64 is moved from a predetermined position. Therefore, the sensor 65 can detect these abnormalities.

  Each suction head 64 includes a flow sensor. The pick-up error of the component 2 can be detected when the flow does not become a predetermined amount or less in spite of the state (position, height) where the component 2 is attracted. The method of sucking or picking up the component 2 by the suction head 64 is not limited to the method of sucking air (negative pressure), but mechanically gripping (holding) the component 2 or using a magnetic field or electric field. A method of adsorbing parts may be used.

  FIG. 5 and FIG. 6 show how the component 2 is reversed by the reversing unit 10. As shown in FIG. 5A, the suction unit 61 of the pickup unit 60 transports the component 2 to the position P <b> 1 and sets the component 2 in the concave portion 15 of the first holder 11. Next, as shown in FIG. 5B, the first holder 11 sucks and supports the set component 2 by the suction unit 31. On the other hand, the suction unit 61 moves to the position P <b> 2 and picks up the inverted part 2 released from the suction unit 31 in the recess 15 of the second holder 12.

  As shown in FIG. 5C, the suction unit 61 moves to the position Pn−1 on the tray 3, and returns the component 2 that has been turned upside down to the tray 3. At this time, if the component 2 is asymmetrical in the front-rear direction, the suction unit 61 is rotated 180 degrees horizontally to return to the original front-rear direction. In parallel with the operation of the pickup unit 60, the second drive unit 14 moves independently in the reversing unit 10, and the second holder 12 is overlaid on the first holder 11.

  When the first holder 11 and the second holder 12 are overlapped as shown in FIG. 6A, the component 2 is released from the suction unit 31, and the first driving is performed as shown in FIG. 6B. The unit 13 and the second drive unit 14 are moved synchronously, and the first holder 11 and the second holder 12 are vertically rotated around the common first axis (axis extending in the horizontal direction) 19. Rotate degrees.

  Furthermore, as shown in FIG. 6C, the component 2 is held by the suction unit 31 in the second holder 12, and the first holder 11 is opened by moving the first drive unit 13 independently. As a result, the upside down part 2 remains in the second holder 12, and the first holder 11 is ready to receive the next part 2. 5 and 6, in the reversing unit 10 exemplifying a state in which one component 2 is reversed, the concave portion 15 and the second holder of the first holder 11 arranged symmetrically with respect to the first axis 19. Using the twelve recesses 15, the plurality of components 2 are simultaneously reversed in parallel.

  In this example, the sum of the depth of the recess 15 of the first holder 11 and the depth of the recess 15 of the second holder 12 is set to be slightly larger than the thickness of the component 2. Therefore, the first holder 11 and the second holder 12 of the reversing unit 10 are arranged around the common shaft 19 in a state in which the component 2 is housed in a space (cavity) formed by a concave portion 15 that is vertically aligned. Rotate to. The depth of the concave portions 15 of the first holder 11 and the second holder may be smaller than the thickness of the component 2, and in this case, the reversing unit 10 is configured by the first holder 11 and the second holder 12. These holders 11 and 12 are rotated around a common axis 19 with 2 being sandwiched up and down.

  In any case, since the holders 11 and 12 are rotated synchronously around the common shaft 19, there is no deviation between the concave portion 15 of the holder 11 and the concave portion 15 of the holder 12 during the rotation. The top and bottom (front and back) can be reversed without applying a load to the component 2. In the point that the part 2 can be safely turned upside down without being removed from the holders 11 and 12 without applying the pressure sandwiched between the parts 2, the recessed part 15 fitted up and down like the reversing unit 10 of this example. It is desirable to rotate the holders 11 and 12 with the component 2 completely housed in the cavity.

  FIG. 7 shows the movement of the reversing unit 10 and the pickup unit 60 by a timing chart. At time t1, the suction unit 61 of the pickup unit 60 picks up the plurality of parts 2 in the n-th row at the position Pn of the tray 3, and at time t2, the suction unit 61 moves to the position P1 of the first holder 11 and moves to the plurality of parts. 2 is set in the reversing unit 10. In the first holder 11, the component 2 set by the suction unit 31 of the recess 15 is fixed to each recess (receiving tray) 15. At time t3, the suction unit 61 picks up the inverted part 2 from the second holder 12 at the position P2, moves to the position Pn-1 of the tray 3 at time t5, and has been inverted to the (n-1) th column. Return part 2. During this time, the suction unit 61 rotates 180 degrees if necessary. Instead of turning the suction unit 61 to return the front / rear direction of the part 2 when returning the reversed part 2, the front / rear direction of the part 2 is changed in advance by turning the suction unit 61 when transporting the part 2 to the reversing unit 10. As described above, this may be done.

  In the reversing unit 10, the second holder 12 is independently rotated at time t3 in parallel (in parallel) with the movement of returning the reversed component 2 of the pickup unit 60 to the tray 3, and the holders 11 and 12 are closed. Then, the fixing of the component 2 by the suction of the lower first holder 11 is released, and the first holder 11 and the second holder 12 are rotated synchronously and set in the holder 11 at time t4. The top and bottom of the parts 2 for one row are reversed simultaneously (simultaneously).

  At time t7, the component 2 is sucked downward by the suction unit 31 of the concave portion 15 of the second holder 12 on the lower side. Thereby, the component 2 is reliably fixed to the recessed part 15 of the 2nd holder 12 from the upper 1st holder 11, and the 1st holder 11 is rotated independently after that and the holders 11 and 12 are opened.

  During this time, the pickup unit 60 moves to the position Pn + 1 of the next n + 1th row of the tray 3 at time t6 and picks up the parts 2 for one row. Then, at time t8, the (n + 1) th row component 2 is moved to the position P1 of the first holder 11, and at time t9, the inverted nth row component 2 at the position P2 of the second holder 12 is picked up. Return to the nth column of the tray 3 at time t10. Thus, in the tray conveyance system 1 of this example, the reversing unit 10 can be used to exchange the top and bottom of the plurality of components 2 in units of rows. Therefore, the upper and lower parts 2 are exchanged in a short time, and the tray 3 can be moved to the next process in which the upper and lower parts 2 are exchanged.

  In this system 1, the upper and lower sides of the components 2 are inverted in units of one row, but the upper and lower sides of the components 2 can be inverted in units of two rows or more. In that case, the first and second holders 11 and 12 of the reversing unit 10 need to be provided with a plurality of rows of recesses 15.

  Further, in this system 1, the process of reversing the component 2 of the reversing unit 10 and the process of conveying the component 2 of the pickup unit 60 are moved in parallel, but a single flow may be used. That is, the pickup unit 60 transports the component 2 to the first holder 11, waits for the reversing unit 10 to reverse the component 2, picks up the reversed component 2 from the second holder 12, and You may return to 3.

  FIG. 8 is a flowchart showing an outline of processing in the tray transport system 1. This process is performed by the control unit 80 executing a program (program product). The control unit 80 includes resources as a computer including a CPU and a memory.

  In step 91, the control unit 80 controls the pickup unit 60 to receive the parts 2 from the tray 3 in units of rows into the first holder 11 of the reversing unit 10. In step 92, the reversed parts 2 are taken out from the second holder 12 of the reversing unit 10 in units of rows and returned to the tray 3. In parallel with this processing, in step 93, the second holder 12 is rotated independently of the first holder 11 by the second drive unit 14 so that the first holder 11 and the second holder 12 face each other. Close it. For example, the control unit 80 outputs a drive signal only to the motor 25 of the second drive unit 14.

  In step 94, the first drive unit 13 and the second drive unit 14 rotate the first holder 11 and the second holder 12 around the first shaft 19 in synchronism with each other. The first holder 11 is stacked on top. For example, the control unit 80 supplies the same drive pulse to the motor 21 of the first drive unit 13 and the motor 25 of the second drive unit 14.

  In step 95, the first holder 11 is rotated independently of the second holder 12 by the first drive unit 13, and the first holder 11 is returned to a position (open position) for receiving a plurality of parts. In step 96, if there is a next row of parts 2 in the tray 3, the pick-up unit 60 is transporting the parts 2 in units of rows at this stage. Repeat the process. If the reversal processing of all the components 2 mounted on the tray 3 has been completed, the components 2 of the next tray 3 are conveyed to the reversing unit 10 by the pickup unit 60 in step 97, and in the same manner as above, in units of rows. Repeat the inversion process for the part 2.

  As described above, the recesses (receiving trays) 15 of the first and second holders 11 and 12 of the reversing unit 10 have shapes for receiving the back surface and the front surface of the component 2, respectively. By aligning the holder 12, the component 2 can be rotated in a fixed state. In the above example, the shape of the back surface and the front surface of the component 2 is the same. However, the component 2 may have a different shape on the front surface and the back surface. It can be changed according to the shape of the part 2. Then, by rotating the first holder 11 and the second holder 12 around the same shaft 19, the rotation reference (reversal reference) is prevented from shifting, and the component 2 is not damaged accurately. In addition, the upper and lower sides (front and back) of the plurality of components 2 can be reversed in units of columns.

  Further, in this tray transport system 1, the components 2 are picked up and reversed in units of rows, so that even if there is a shortage in the rows of the trays 3, when the pick-up unit 60 transports them to the reversing unit 10. In addition, the reversal process can be performed without recognizing the presence or absence of each component by recognizing the missing item from the beginning. Further, the conveyance process by the pickup unit 60 and the reversing process by the reversing unit 10 can be performed in parallel for each column, and the time (tact time) required for the reversing process of the component 2 can be shortened.

1 tray transport system, 10 parts reversing unit, 60 pickup unit

Claims (9)

A first holder for holding a plurality of components in at least one row along a first axis;
A second holder for holding the plurality of parts side by side along the first axis at a symmetrical position with respect to the first holder with respect to the first axis;
A first drive unit that rotates the first holder about the first axis;
A second drive unit that rotates the second holder about the first axis in synchronization with and independently of the first drive unit;
The first holder and the second holder include a plurality of recesses that respectively hold the plurality of components, and suction through holes provided at the bottoms of the plurality of recesses,
Furthermore, when the first holder and the second holder are opened and closed across the first shaft, the plurality of recesses of the lower holder of the first holder and the second holder are by contact with respectively lower side of the lower holder of the respective through holes for the suction provided at the bottom have a suction unit that sucks the individual components in lower, the first holder and The second holder is a component reversing unit in which each of the suction through holes rotates independently from the suction unit. Parts according to claim 1, the bottom of each of said plurality of recesses includes a portion that defines the position of the individual parts, respective openings of said plurality of recesses guiding the individual parts to the prescribed portions Including parts reversing unit. 3. The component reversing unit according to claim 1, wherein a depth of each of the plurality of recesses is smaller than a thickness of the individual component . The component reversing unit according to any one of claims 1 to 3,
A receiving unit for receiving a tray in which the plurality of parts are stored in a matrix;
A pickup unit configured to move the plurality of parts arranged on the tray to the first holder in a row unit; In claim 4,
The pickup unit includes a function of moving the plurality of parts from the second holder to the tray or different trays in a row unit after moving the plurality of parts to the first holder in a row unit. .   6. The apparatus according to claim 4, wherein the pickup unit includes a sensor that operates when a distance between each of the plurality of parts when picking up is shorter than a predetermined value. A method comprising reversing a component by means of a device comprising a component reversing unit,
The component reversing unit is
A first holder for holding a plurality of components in at least one row along a first axis;
A second holder for holding the plurality of parts side by side along the first axis at a symmetrical position with respect to the first holder with respect to the first axis;
A first drive unit that rotates the first holder about the first axis;
A second drive unit that rotates the second holder about the first axis;
The first holder and the second holder include a plurality of recesses that respectively hold the plurality of components, and suction through holes provided at the bottoms of the plurality of recesses,
The component reversing unit is further configured so that when the first holder and the second holder are opened and closed across the first shaft, the lower holders of the first holder and the second holder has a suction unit for sucking the individual components in lower by contact with the underside of each said lower holder through holes for the suction provided in the respective bottoms of the plurality of recesses,
The inversion is
Receiving the plurality of parts in the first holder;
And aspirating the lower respectively by the first of the suction unit via the through holes for the suction of said plurality of parts received in the holder,
Each of the suction through-holes of the second holder is moved away from the suction unit and rotated independently of the first holder by the second drive unit, and the first holder and the second holder are rotated. To face the holder,
The first drive unit and the second drive unit rotate the first holder and the second holder synchronously around the first axis, and the suction of the first holder each through hole away from the suction unit overlapping the first holder on said second holder, Sessu the respective through holes for the suction of said second holder to the suction unit Rukoto When,
And aspirating the lower respectively by the suction unit via the through holes for the suction of said plurality of parts received in the second holder,
Wherein the second holder by the first holder first drive unit to rotate independently to return the first holder in a position for receiving the plurality of parts, the first holder Contacting each of the suction through holes with the suction unit . The apparatus according to claim 7, wherein the apparatus receives a tray in which the plurality of parts are stored in a matrix.
A pickup unit that moves the plurality of parts between the tray and the first holder and the second holder;
Receiving the plurality of parts includes moving the plurality of parts arranged in the tray to the first holder in a row unit by the pickup unit;
The inversion further includes
Moving the plurality of parts from the second holder to the tray or different trays in rows between receiving the plurality of parts and facing the first and second holders A method comprising:   9. The method according to claim 8, wherein moving to the tray includes rotating the pickup unit 180 degrees in a horizontal direction while holding the plurality of parts.

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