JP2006219230A - Parts feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a parts feeder capable of enhancing positioning accuracy in placing a part on an escape and enabling stable carriage and extraction of the part. <P>SOLUTION: This parts feeder is provided with: a carrying mechanism 1 having a carrying passage for moving a part; and an escape mechanism 3 for receiving the part from the carrying mechanism 1 and for transferring the part to a carrying means for carrying the part between process processing mechanisms for executing various kinds of processes for the part. The escape mechanism is provided with a rotary escape 31 for receiving the part from the carrying mechanism while rotating and for transferring the part to the carrying means; and the rotary escape 31 is provided with a mounting part for holding the part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a parts feeder for transporting small electronic components such as semiconductor elements and supplying them to a processing apparatus that performs various processing steps.

  Small electronic components such as semiconductor elements are transported and delivered between various processing devices in the manufacturing process and the mounting process. In this way, parts feeders have been developed as devices for transporting and supplying electronic components to various processing devices. In general, vibrations are applied to the transport route for transporting components and the transport route. A vibration mechanism for continuously moving the parts, an escape mechanism for picking up and taking out the parts, and supplying the parts to the processing apparatus are provided.

  For example, the parts feeder described in Patent Document 1 is a combination of a circular vibration part feeder and a linear supply vibration feeder, and continuously conveys a large number of parts. Is picked up and taken out.

FIG. 4 schematically shows a supply vibration feeder in such a parts feeder. In this supply vibration feeder, the electronic components S arranged on the conveyance path 13 provided with the left and right guide portions 12 are sequentially conveyed on the conveyance path 13 by applying vibrations obliquely with respect to the conveyance direction. . The electronic component S transported to the end of the transport path 13 is controlled to stop and advance at a predetermined position by the stopper 22 and sequentially delivered to escape (cutout). When the electronic component S is received, the escape moves in parallel and delivers the electronic component S to the holding mechanism 4 provided in the conveying means for conveying between various processing steps such as appearance inspection and electrical inspection.
JP 63-218421 A

  In the conventional parts feeder as described above, as shown in FIG. 4, when the escape moves from the position where it receives the electronic component S from the transport path 13 to the position where it is delivered to the holding mechanism 4, If the component S is not sufficiently held, the electronic component S on the escape is displaced due to the movement of the escape, or the component falls into the gap 15 at the end of the conveyance path 13 generated between the conveyance path 13 and the escape. It may end up. Then, when the escape is moved again to the conveyance path 13 side, the gap 15 may be clogged with parts.

  In addition, since the escape reciprocates between the position where the electronic component S is received from the transport path 13 and the position where the electronic component S is delivered to the holding mechanism 4, there is a limit to high-speed transport, which is inefficient. .

  Furthermore, as shown in FIG. 5A, when the electronic parts S to be transported are elongated, they are not transported in an orderly manner when transporting in the transport path 13. Therefore, when the electronic component S is placed on the escape, the posture of the electronic component S on the escape becomes unstable, the positioning accuracy is low, and the electronic component S falls from the escape due to the movement of the escape, or a suction error and suction Troubles such as clogging occurred.

  Further, since the elongated electronic component S is scattered when the components are sequentially conveyed by applying vibration, the leads are left and right with respect to the conveying direction as shown in FIG. It was not possible to carry by the normal method as positioned, and as shown in FIG. 5B, the carrying method was such that the leads were positioned in the front and rear directions with respect to the carrying direction. For this reason, as shown in FIG. 5C, the front and rear electronic components S may overlap each other, or the rear electronic component S may enter the gap between the guide and the preceding electronic component S. When such a situation occurs at the delivery position to the escape, for example, the two electronic components S are delivered while being overlapped. For example, there is no means for delivering the electronic components S in order with respect to the escape. It was necessary.

  The present invention has been proposed in order to solve the above-described problems of the prior art, and the object thereof is high positioning accuracy when placing parts on the escape, and stable transportation and removal of parts. It is to provide a parts feeder that makes it possible.

  In order to achieve the above object, the invention described in claim 1 includes a conveyance mechanism having a conveyance path through which a component moves, and a process processing mechanism that receives the component from the conveyance mechanism and performs various processes on the component. In the parts feeder provided with an escape mechanism that delivers a part to the transport means that transports the rotary mechanism, the escape mechanism receives a part from the transport mechanism while rotating and also delivers the part to the transport means An escape is provided, and the rotary escape is provided with a mounting portion for holding a component.

  According to the above aspect, when the rotary escaper receives a part from the transport path, it reciprocates by parallel movement between the transport mechanism having the transport path and the transport means for transporting the received part between the process processing mechanisms. Without rotating, the parts can be received from the transport path and transferred to the transport mechanism for transporting between the respective process processing mechanisms by rotating on the spot. In addition, since the transport mechanism and the rotary escape can be installed adjacent to each other without generating a gap between the transport path and the rotary escape, the electronic component does not fall or clog the gap.

  According to a second aspect of the present invention, in the parts feeder according to the first aspect of the present invention, a suction portion for sucking and holding the received component is provided.

  According to the above aspect, the conveyance path and the rotary escape come into contact with each other to move the part, and when the part is delivered to the part mounting part, the suction part is operated to suck the part and mount the part. The positioning accuracy of the component placed on the part is increased.

  According to a third aspect of the present invention, in the parts feeder according to the first or second aspect, the mounting portion is provided so as to be shifted in the rotational direction from the diameter of the rotary escape, and the mounting is performed. The portion is provided in parallel with the diameter.

  If the mounting portion is provided on the diameter of the rotary escape, the lead of the electronic component placed on the mounting portion and the electronic component at the end of the transport path is engaged with each other by rotating the rotary escape. Together, it is not possible to move only the mounted electronic components appropriately.

  However, according to the third aspect of the present invention, since the mounting portion is provided so as to be deviated from the diameter in the rotational direction, the rotary escape after the parts are received from the transport path, and then the parts on the rotary escape. The electronic component placed on the mounting portion is moved to the conveying means so as to be separated from the final end of the conveying path along the rotation outer peripheral track of the rotary escape. Therefore, the component placed on the component mounting portion and the electronic component positioned at the end of the transport path come into contact with each other, and the electronic component can be smoothly placed on the component mounting portion and the transporting means without the mutual leads entering. Can be moved to.

  According to a fourth aspect of the present invention, in the parts feeder according to any one of the first to third aspects, the rotary escape has four mounting portions arranged at equal intervals. Features.

  According to the above aspect, depending on the type of the process processing mechanism, for example, when the parts placed on the rotary escaper need to hold the lead portion in the horizontal direction, or the lead portion needs to be held in the vertical direction. By providing a plurality of component mounting portions in the case where there is, it is possible to cope with various types of process processing mechanisms by shifting the delivery position for each type of conveying means, and the versatility is enhanced.

  According to a fifth aspect of the present invention, in the parts feeder according to any one of the first to fourth aspects, the electronic component is placed on the mounting portion on the rotary escape in the rotary escape. When the delivery mistake part discharge position is reached, the apparatus includes a part discharge unit that discharges an electronic part by causing air to flow backward from the suction portion.

  According to the above aspect, even when the electronic component placed on the rotary escape is not picked up by the holding mechanism provided in the transport mechanism, it is not necessary to remove the component from the component mounting portion. It is possible to avoid a machine failure or the like caused by a part left on the part mounting part on the rotary escape.

  A sixth aspect of the present invention is the parts feeder according to any one of the first to fifth aspects, wherein a stopper for stopping the conveyed component and a component in the middle of conveyance are provided at the conveyance path end portion. And an adsorption mechanism for controlling the stop and progress of the operation.

  According to the above aspect, for the components behind the electronic components mounted on the component mounting portion from the conveyance path, the movement of the electronic components is restricted by the interlocking of the vacuum stopper and the stopper installed in the conveyance mechanism. Without being connected to the electronic components that are mounted, only the final electronic components can be delivered in order according to the timing of receiving the rotary escaper, and the electronic components behind the final electronic components in the transport path More appropriate guidance is possible.

  ADVANTAGE OF THE INVENTION According to this invention, the positioning accuracy at the time of mounting components on an escape is high, can implement | achieve the stable conveyance and taking-out of components, and can provide the parts feeder which can be drive | operated at high speed.

  Next, the best mode for carrying out the present invention will be described with reference to FIGS.

[Configuration of the embodiment]
As shown in FIGS. 1 (a) and 1 (b), the parts feeder of the present embodiment is configured by a transport mechanism 1, a stopper mechanism 2, and an escape mechanism 3 having a rotary escape 31 that is a main part of the present invention. Has been.

The conveyance mechanism 1 includes a conveyance path 13 including a linear component conveyance surface 11 on which the electronic component S moves, a guide portion 12 that guides the left and right directions of the electronic component S on both sides of the electronic component S, and a conveyance path 13. It comprises a vacuum suction type vacuum stopper 21 constituting the stopper mechanism 2 provided at the end portion and a stopper 22 provided so as to be rotatable above the transport path 13.
The vacuum stopper 21 and the stopper 22 constituting the stopper mechanism 2 are attracted or lifted in conjunction with the rotation of the escape 3 described later.

  Timing of rotation (up and down) of the stopper 22 and intermittent rotation timing of the rotary escape 31 for moving the mounted component, or holding and releasing of the vacuum stopper 21 for temporarily stopping the final end component on the transport path 13 All timings are linked.

  The escape mechanism 3 includes a rotary escape 31 and a drive motor 5 that drives the rotary escape 31. The rotary escape 31 has four component mounting grooves 32 that receive the electronic components S from the transport mechanism 1 and four suction portions 33 that are directly connected to the component mounting grooves 32 arranged at equal intervals on the rotary escape 31. Four component mounting grooves 32 provided at equal intervals on the rotary escape 31 are shifted from the diameter L of the rotary escape 31 in the rotation direction, and an offset portion 16 is provided on the rotary escape 31. It is arranged on a parallel line M parallel to the diameter L.

  The component mounting groove 32 has a concave groove shape dug from the upper surface of the rotary escape 31. Further, a cover 34 is provided on the upper surface to guide the mounted component from both sides and the back or upper surface. , Play a role of positioning. In addition, a suction portion 33 that sucks the mounted electronic component S is provided on the lower surface on the back side of the component mounting groove 32, and the cover 34 provided on the upper surface is an electronic component mounted in the component mounting groove 32. It also plays a role in enhancing the adsorption effect of S.

  A holding mechanism 4 that receives the electronic component S from the rotary escape 31 is provided on the turntable 17 that is a transfer means for transferring to the process processing mechanism.

  In the rotary escape 31, as shown in FIG. 1A, delivery positions A and delivery positions B are picked up by the holding mechanism 4 that picks up the electronic component S for delivery to the transport means in the next process. In addition, a delivery error discharge position C is provided. That is, every time the rotary escape 31 rotates intermittently by ¼, the electronic component S is sequentially moved to the delivery position A, the delivery position B, and the delivery error discharge position C.

[Operation of the embodiment]
The electronic components S sent to the transport path 13 of the transport mechanism 1 are sequentially transported in the direction of the escape mechanism 3 while being guided in the left-right direction on the component transport surface 11 by the guide portion 12 by vibration and air.

  The electronic component S transported to the end of the transport path 13 is temporarily stopped when the stopper 22 is rotated downward, and the component mounting groove 32 of the rotary escape 31 is stopped at a predetermined position. After that, the stopper 22 rotates upward, and the electronic component S at the final end is guided to the component mounting groove 32 of the rotary escape 31. At this time, the suction portion 33 directly connected to the component mounting groove 32 is operated to suck the electronic component S to be delivered, so that the electronic component S is predetermined using the component mounting groove 32 or the cover 34 of the rotary escape 31 as a guide. It is mounted at the position.

  Thereafter, at the same time as being mounted in the component mounting groove 32, the stopper 22 is lowered again, and the electronic component S <b> 1 to be delivered next is stopped, and at the same time, the rotary escape 31 is rotated by ¼ to reach the delivery position A. Move S1. The electronic component S1 that has moved to the delivery position A is sucked by the suction holding mechanism 4 and conveyed to the next process processing mechanism.

If the electronic component S is not picked up at the delivery position A, when the electronic component S moves to the delivery mistake discharge position C due to the rotation on the rotary escape 31, the presence or absence of the electronic component S is detected by the sensor. The electronic component S is forcibly discharged by making a determination and causing air to flow backward from the suction portion 33 toward the component mounting groove 32.
[Effect of the embodiment]

  According to the present embodiment, when the rotary escape 31 receives the electronic component S from the transport path 13, the electronic device S is received from the transport path 13 by rotating on the spot without reciprocating by parallel movement, and the holding mechanism. 4 can be handed over. Therefore, since it becomes possible to install adjacently without generating a gap between the conveyance path 13 and the rotary escape 31, the electronic component S falls between the conveyance path 13 and the rotary escape 31, There is no clogging. Moreover, since the rotary escape 31 rotates to move the placed electronic component S, it can be rotated at a higher speed than the conventional reciprocating motion, so that the electronic component S is efficiently conveyed. be able to.

  In addition, since the component mounting groove 32 disposed on the rotary escape 31 is formed in a concave groove shape, the electronic component S moved from the transport path 13 is surrounded by the component mounting groove 32 in three directions. In addition to being placed in a state, the electronic component S placed by the action of the suction portion 33 and the cover 34 is sucked, so that the positioning accuracy of the component is increased and the component can be transported stably.

  Further, the electronic component S that is left without being collected by the holding mechanism 4 at the delivery error discharge position C on the rotary escape 31 is forcibly discharged by causing the suction portion 33 to flow back air. Thereby, it is possible to avoid a failure such as the electronic component S being clogged in the component mounting groove 32 caused by the electronic component S being left in the component mounting groove 32 on the rotary escape 31.

  Further, as shown in FIG. 2A, the component mounting groove 32 is formed on the parallel line M so as to be shifted in the rotational direction from the diameter L of the rotary escape 31. After receiving the electronic component S12 from the electronic component S12, the electronic component S12 placed in the component mounting groove 32 on the rotary escape 31 is moved from the electronic component S13 at the final end of the transport path 13 along the rotation outer peripheral track of the rotary escape 31. It is conveyed to a conveyance means so that it may leave | separate. Therefore, as shown in FIG. 2B, the electronic component S12 is smoothly placed in the component mounting groove 32 without the leads of the rear electronic component S13 and the preceding electronic component S12 entering each other, and the holding mechanism 4 It is possible to deliver the electronic component S stably.

  When the electronic component S on the transport path 13 moves to the rotary escape 31, the stopper 22 and the vacuum stopper 21 operate in conjunction with each other so that the final electronic component S to be delivered to the escape mechanism 3 is When moving, the electronic component S thereafter is restricted from being moved by the vacuum stopper 21, and the electronic component S can be sent out in order in accordance with the reception timing of the rotary escape 31, so that the rotary escape from the transport path 13. The delivery to the component mounting groove 32 on 31 can be performed smoothly.

  In addition, since the holding mechanism 4 picks up the electronic component S to be transported to the next process on the rotary escape 31, two delivery positions are provided, not only a single next process processing mechanism but also a purpose. Accordingly, it is possible to connect to a plurality of process processing mechanisms. For example, when the conveying means needs to hold the lead portion in the horizontal direction or when the lead portion needs to be held in the vertical direction, by providing a plurality of component mounting grooves 32, various process processing mechanisms are provided. It can correspond to.

[Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, as shown in FIG. 3, it is used as a satellite table 14 in each process processing mechanism such as test contact (electric characteristic inspection), marking, and appearance inspection. Is possible.

  The test contact processing process usually requires a longer processing time for each component than other process processing mechanisms. For this reason, the processing time for the test contact is rate-determined, which affects the productivity. As a countermeasure, if the concept of the rotary escape 31 is taken in and parts are passed to the satellite table 14 during the test, the main table can be rotated without waiting for the end of the test.

  Even in the marking process, if it is used as the satellite table 14, it is small and can be processed at high speed without taking up space. Similarly, in the appearance inspection process, if it is used as the satellite table 14, it can be installed compactly and can be processed at high speed.

The top view (a) and side view (b) which show the whole structure of the parts feeder in embodiment of this invention. The enlarged view which shows the structure of the escape mechanism in embodiment of this invention. The block diagram which shows other embodiment of this invention. The block diagram which shows the conventional escape mechanism. The block diagram which shows the conventional escape mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Conveyance mechanism 2 ... Stopper mechanism 3 ... Escape mechanism 4 ... Holding mechanism 5 ... Drive motor 11 ... Component conveyance surface 12 ... Guide part 13 ... Conveyance path 14 ... Satellite table 15 ... Gap 16 ... Offset part 17 ... Rotary table 21 ... Vacuum stopper 22 ... Stopper 31 ... Rotary escape 32 ... Part mounting groove 33 ... Suction part 34 ... Cover A, B ... Delivery position C ... Delivery error discharge position L ... Diameter M ... Parallel line S, S1, S12, S13 ... Electronic parts

Claims (6)

A transport mechanism having a transport path for moving the component, and an escape mechanism for receiving the component from the transport mechanism and delivering the component to the transport means for transporting between the process processing mechanisms for performing various processes on the component. In the parts feeder
The escape mechanism includes a rotary escape that receives parts from the transport mechanism while rotating and delivers parts to the transport means, and the rotary escape includes a mounting portion that holds the parts. Parts feeder.   The parts feeder according to claim 1, wherein the mounting part is provided with a suction part that sucks and holds a received part.   The mounting portion is provided so as to be shifted from the diameter of the rotary escape toward the rotation direction, and the mounting portion is provided in parallel with the diameter direction. The parts feeder according to 2.   The parts feeder according to any one of claims 1 to 3, wherein the rotary escape is provided with four mounting portions arranged at equal intervals.   The rotary escape includes a component discharge means for discharging the electronic component by reversing the air from the suction portion when the delivery error component discharge position is reached while the electronic component is mounted on the mounting portion on the rotary escape. The parts feeder according to any one of claims 1 to 4, wherein the parts feeder is provided. The said conveyance path | route termination | terminus part is equipped with the stopper which stops the conveyed components, and the adsorption | suction mechanism which controls the stop and progress of the components in the middle of conveyance, The any one of Claim 1 thru | or 5 characterized by the above-mentioned. The parts feeder described in the item.

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