JP2010272684A - Electronic-component feeder and surface mounting machine using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic-component feeder that stabilizes component feed operation, and a surface mounting machine. <P>SOLUTION: The electronic-component feeder is mounted to a mounting-machine body so as to feed out each component EC to a prescribed position by vibrating a container 4 having a long hollow shape and storing the components therein. The electronic-component feeder includes: a container holding part 37 for holding the container 4; a vibration generating device 39 being a generation source of a vibration for vibrating the container holding part 37; and a controller 32 for controlling a driving state of the vibration generating device 39. The controller 32 drives the vibration generating device 39 on the basis of a vibration pattern including at least two vibrations having frequencies different from each other and allows the frequencies of the at least two vibrations and duration of the vibration at each frequency to be respectively arbitrarily settable. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electronic component supply device configured to vibrate a hollow long container in which components are stored and to send the components to a predetermined position, and to a surface mounter using the electronic component supply device.

  2. Description of the Related Art Conventionally, surface mounters that mount electronic components at predetermined positions on a printed circuit board are known. The surface mounter includes a component supply device that sequentially supplies electronic components to a predetermined component supply position.

  There are various types of component supply devices. As one type, a multi-stick feeder is known in which electronic components housed in a hollow long stick are sequentially moved to a component supply position by vibration. .

  The conventional multi-stick feeder is mainly generated by a vibration generator that is fixed to the container holder with a space between the container holder on which a plurality of sticks are placed, a vibration generator that is a source of vibration, and a container. It is comprised by a pair of diaphragm which receives the vibration which was made to vibrate a container holding part, and various support members, such as a vibration prevention board which supports the both ends of the vibration generator which protruded the outer side of the diaphragm.

  In such a multi-stick feeder, a plurality of sticks are placed on the container holding portion in an inclined posture such that the front end side is lower than the rear end side. Then, when the predetermined vibration generated by the vibration generator is transmitted to the container holding unit and the electronic component in the stick, the electronic component in the stick moves in the longitudinal direction of the stick (see Patent Document 1).

Patent Registration No. 3994557

  However, in the above-described conventional technology, when supplying electronic components with a multi-stick feeder, an ON / OFF control that selects one of two, whether to vibrate or not to vibrate, is used. I was driving.

  In such ON / OFF control, the applied vibration becomes monotonous. Therefore, when the electronic component is to be moved, a static frictional force is applied and the electronic component does not start moving. When the component is to be stopped, an inertial force is applied and the electronic component moves to a position shifted from the component suction position. Therefore, there is a problem that the electronic component cannot be accurately positioned at the component suction point, and the component supply operation is not stable.

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide an electronic component supply device capable of stabilizing the component supply operation and a surface mounter using the electronic component supply device. Yes.

  The electronic component supply device of the present invention is an electronic component supply device that is mounted on a mounting machine body, vibrates a hollow long container in which components are stored, and sends the components to a predetermined position. A container holding unit that holds the container; a vibration generation device that is a vibration generation source that vibrates the container holding unit; and a controller that controls a driving state of the vibration generation device, the controllers being different from each other. The vibration generator is driven based on a vibration pattern including at least two vibrations having a frequency, and the frequency of the at least two vibrations and the duration of vibration at each frequency can be arbitrarily set. It is characterized by.

  According to this invention, the controller drives the vibration generating device based on a vibration pattern including at least two vibrations having different frequencies, and determines the frequency of the at least two vibrations and the duration of vibration at each frequency. Each can be arbitrarily set. That is, the vibration state of the vibration generator is adjusted as desired, and the force applied to the component to move the component can be more appropriately controlled according to the situation. Therefore, the parts supply operation can be stabilized.

  In addition, the controller has a start-up section in which the part is started by vibration having a relatively large frequency, a moving section in which the part is moved by vibration having a predetermined frequency smaller than that in the start-up section, and the frequency becomes 0 with time. It is preferable that the vibration generator is driven based on a vibration pattern including a stop section in which a component is stopped at a predetermined position by vibration that attenuates toward the position.

  According to the present invention, the vibration pattern has a start section in which the part is started by vibration having a relatively large frequency, a moving section in which the part is moved by vibration having a constant frequency smaller than that in the start section, and the frequency has elapsed over time. And a stop section in which the component is stopped at a predetermined position by vibration that attenuates toward zero, and the vibration generator is configured to be driven based on this vibration pattern. In other words, it is possible to apply different vibrations to the container at the start of movement of the part, at the time of movement of the part, and at the time of stoppage. Sometimes it is prevented from stopping at a predetermined position as much as possible, and an appropriate vibration according to each stage is given, so that the parts are sent out smoothly.

  Further, the controller is configured to select a vibration pattern corresponding to the type of component to be supplied from a plurality of types of vibration patterns, and to drive the vibration generator based on the selected vibration pattern. Is preferred.

  According to the present invention, since a vibration pattern corresponding to the type of component is selected from a plurality of types of vibration patterns, the supply operation can be finely adjusted according to the difference in the component, and the form and weight of the component can be adjusted. Depending on the situation, different supply operations can be realized.

  The container holding unit holds a plurality of containers, and the controller is configured to select a vibration pattern corresponding to a part that is most difficult to send out among a plurality of types of parts supplied from the plurality of containers. It is preferable that

  According to the present invention, when selecting a vibration pattern, the vibration pattern corresponding to the part that is most difficult to send out is selected. Therefore, even when supplying a plurality of types of parts, the part that is most difficult to send out is not in a predetermined position. You can prevent the situation from reaching. Therefore, the component can be reliably sent to a predetermined position regardless of the type of the component.

  The surface mounter of the present invention is a surface mounter that transports and mounts components supplied from an electronic component supply device to a predetermined position of a substrate carried on a base, and the electronic component supply device The electronic component supply apparatus according to any one of the above is used.

  According to the present invention, the component supply operation can be stabilized.

It is a top view which illustrates a surface mounting machine roughly. It is a side view for demonstrating an electronic component supply apparatus. It is the elements on larger scale of an electronic component supply apparatus. It is a partial rear view of an electronic component supply apparatus. It is a conceptual diagram for demonstrating the vibration generator of an electronic component supply apparatus. It is a conceptual diagram for demonstrating the main body side controller provided in the mounting machine main body side, and the controller provided in the electronic component supply apparatus side. It is a graph explaining the relationship between the motor rotation speed and time of a vibration generator. It is a graph for demonstrating the relationship between the amplitude at the time of driving a vibration generator, and time, (a) shows the amplitude of the front-back direction, (b) shows the amplitude of an up-down direction. It is a flowchart at the time of driving a vibration generator. It is a graph explaining the relationship between the motor rotation speed of a vibration generator, and time, and is a vibration pattern which adjusted the movement area. It is a graph explaining the relationship between the motor rotation speed and time of a vibration generator, and is a vibration pattern adjusted by increasing or decreasing the steady value and the maximum value. It is a graph explaining the relationship between the motor rotation speed of a vibration generator and time, and is a vibration pattern which adjusted the movement area, the steady value, and the maximum value. It is a graph for demonstrating the other form of a vibration pattern, (a) shows the vibration pattern which repeats the increase and decrease of motor rotation speed in a movement area, (b) shows that motor rotation speed progresses time in a movement area. (C) shows a vibration pattern in which the motor rotation speed decreases with time in the movement section.

Hereinafter, the electronic component supply apparatus according to the present embodiment will be described in detail with reference to the drawings.
(Embodiment 1)
FIG. 1 is a plan view for schematically explaining a surface mounter equipped with a multi-stick feeder (electronic component supply device) 3 according to the first embodiment.

  In the surface mounter, the head unit 14 provided so as to be movable in the horizontal direction on the base 10 sucks and conveys the electronic component EC supplied from the component supply unit Sup and puts it at a predetermined position on the base 10. It is configured to be mounted at a predetermined position on the printed circuit board (substrate) P that has been carried in.

  Specifically, as shown in FIG. 1, the surface mounter of Embodiment 1 includes a base 10, a pair of conveyors 11 that convey a printed board P to a predetermined position on the base 10, and a print A component supply unit Sup that sequentially supplies the electronic components EC mounted on the substrate P, and a component conveyance unit that conveys the electronic components EC supplied by the component supply unit Sup from the component supply unit Sup to the printed circuit board P (described in detail later) ), A nozzle station 16 for storing a plurality of replacement nozzles for adsorbing the electronic component EC, a component imaging unit 15 for recognizing the posture of the electronic component EC held by the component transport unit with a camera from below, The main body side controller 5 (refer FIG. 6) which controls these collectively is provided.

  The printed circuit board P is placed so as to straddle the pair of conveyors 11. Then, the printed circuit board P is transported to a predetermined position on the base 10 by the operation of the pair of conveyors 11. Hereinafter, the conveyance direction of the printed circuit board P is the X direction, the direction orthogonal to the X direction, the horizontal direction is the Y direction, and the direction orthogonal to the XY plane formed by the X direction and the Y direction is the Z direction. explain.

  The component supply unit Sup is disposed outside the pair of conveyors 11. The component supply unit Sup includes a tape feeder 2 and a multi-stick feeder 3. The component supply unit Sup will be described in detail later.

  The component conveying means includes a Y direction moving means 12 fixed on the base 10, an X direction moving means 13 supported by the Y direction moving means 12 so as to be movable in the Y direction, and an X direction moving means 13 in the X direction. And a head unit 14 supported so as to be movable.

  The head unit 14 is configured to be freely movable in the XY directions on the base 10. That is, when the servo motor 12a of the Y-direction moving unit 12 is driven, the ball screw shaft 12b of the Y-direction moving unit 12 starts rotating by receiving the driving force of the servo motor 12a. The X direction moving means 13 is attached to the ball screw shaft 12b via a ball nut 12c, and moves in the Y direction along the fixed rail 12d as the ball nut 12c moves in the longitudinal direction of the ball screw shaft 12b. Further, when the servo motor 13a of the X direction moving means 13 is driven, the ball screw shaft 13b of the X direction moving means 13 starts rotating by receiving the driving force of the servo motor 13a. The head unit 14 is attached to the ball screw shaft 13b via a ball nut (not shown), and moves in the X direction as the ball nut moves in the longitudinal direction of the ball screw shaft 13b.

  The head unit 14 includes a plurality of suction heads 14a that suck the electronic component EC and move it up and down in the Z direction. In the present embodiment, six suction heads 14a are arranged in the head unit 14 so as to form a row parallel to the X direction. Each suction head 14a is configured to move up and down in the Z direction with respect to the head unit 14 by a lifting mechanism (not shown), and each suction head 14a has its own axis with respect to the head unit 14 by a rotation mechanism (not shown). It is configured to rotate around. Each suction head 14a is provided with a nozzle for sucking electronic components at the tip.

  In the surface mounter, the operation of transporting and mounting the electronic component EC from the component supply unit Sup to the printed board P is repeatedly performed by the above-described component transport unit. When the mounting operation on the printed circuit board P is completed, the printed circuit board P is unloaded from the base 10 by the conveyor 11.

  The base 10 of the surface mounter is provided with a main body controller 5 (see FIG. 6). The main body side controller 5 includes a main control unit 51 that comprehensively controls the surface mounting machine, a storage unit 52 that stores various programs, mounting order, component information, a plurality of vibration patterns that will be described in detail later, and a servo motor 12a. , 13a, a motor control unit 53 for controlling driving, an image processing unit 54 for processing images captured by various cameras, a communication control unit 55 for exchanging information with each unit of the surface mounter, and a mounting machine main body side And an I / O control unit 56 that performs control between the various input / output devices.

  Here, the component supply unit Sup will be described. A plurality of tape feeders 2 that sequentially supply relatively small electronic components EC such as ICs, transistors, capacitors, etc. to the component supply position while winding the tape containing the electronic components along the longitudinal direction in the component supply unit Sup. And a multi-stick feeder 3 that sequentially moves electronic components EC accommodated in a hollow long stick (container) 4 to a component supply position by vibration. The multi-stick feeder 3 and the tape feeder 2 are attached to the base 10 so that the component supply positions of various feeders are aligned on a straight line in the X direction as the entire component supply unit Sup.

  Each tape feeder 2 includes a tape that accommodates a large number of electronic components EC along the longitudinal direction, a reel around which the tape is wound, and a feeding mechanism that intermittently feeds the tape by rotating the reel. Each tape feeder 2 is assembled to a feeder base provided on the base 10.

  FIG. 2 is a side view for explaining the multi-stick feeder 3. FIG. 3 is a partially enlarged view of the multi-stick feeder 3. FIG. 4 is a rear view of a part of the multi-stick feeder 3.

  As shown in FIG. 2, the multi-stick feeder 3 includes a container holding unit 37 that holds a plurality of sticks (containers) 4, a vibration generation device 39 that is a vibration generation source that vibrates the container holding unit 37, and a container Four diaphragms 36 each having an upper end fixed at four locations on the lower surface of the holding portion 37, a diaphragm support member 35 that supports the lower end of the diaphragm 36, and the diaphragm support member 35 are protected against each other. A base member 33 connected via a vibration member 34, a mounting member 31 fixed to the base member 33 and mounted on the surface mounter body, and fixed to the mounting member 31 to control driving of the vibration generating device 39. And a controller 32.

  The container holding part 37 includes a tray-like bottom plate 37a and a side plate 37b that protrudes upward from the bottom plate 37a and extends rearward.

  On the upper surface of the bottom plate 37a, a plurality of hollow sticks 4 (with a rectangular cross section) in which the electronic component EC is accommodated are placed with the longitudinal direction of the sticks 4 parallel to the Y direction. . Each stick 4 accommodates different types of electronic components EC. For this reason, the width of the stick 4 differs depending on the type (weight, length in the moving direction, etc.) of the electronic component EC housed therein. Each stick 4 is arranged on the container holding portion 37 in an inclined posture such that the rear side is supported at a predetermined height by the side plate 37b and the front end side is lower than the rear end side.

  In addition to this, on the front side end of the container holding part 37, on the upper part of the bottom plate 37a, there is a pressing mechanism for pressing the tip of each stick 4, and a passage for the electronic component EC supplied from the stick 4. A stopper 30 and the like for stopping the feeding path and the electronic component EC at a predetermined position on the feeding path (that is, a parts supply position) are provided.

  FIG. 5 is a conceptual diagram for explaining the vibration generating device 39 of the multi-stick feeder 3 and is a cross-sectional view taken along the line VV of FIG. The vibration generator 39 according to the present embodiment is configured to be able to arbitrarily set the vibration frequency and the vibration duration time at each frequency.

  As shown in FIG. 5, the vibration generator 39 includes a motor 39a, a crank mechanism including an eccentric shaft 39b that converts the rotational motion of the motor 39a into a reciprocating motion in the supply direction of the electronic component EC, and an eccentric shaft. A connecting rod 39c having one end rotatably connected to 39b and the other end rotatably connected to the lower surface of the bottom plate 37a of the container holding portion 37, a motor 39a and a crank mechanism for supporting the diaphragm And a suspended plate 39d supported at a predetermined height so as to be suspended from the member 35.

  The motor 39a is provided so that the axis of the rotation axis thereof is parallel to the X direction (direction perpendicular to the longitudinal direction of the stick 4). A first gear 39a1 is fixed to the rotation shaft of the motor 39a. The eccentric shaft 39b of the crank mechanism is provided with a second gear 39a2 at one end. The first gear 39a1 meshes with the second gear 39a2, and rotates the eccentric shaft 39b in conjunction with the rotational movement of the motor 39a. The eccentric shaft 39b is set so that the center axis T of the power transmission portion with respect to the connecting rod 39c is deviated from the rotation center axis Ax of the second gear 39a2 by δ (for example, about 0.1 to 0.3 mm). The connecting rod 39c having one end rotatably connected to the eccentric shaft 39b receives a rotational movement of the eccentric shaft 39b, and reciprocates in the Y and Z directions. To communicate. Thus, since the connecting rod 39 c is connected to the bottom plate 37 a of the container holding part 37, the predetermined vibration generated by the vibration generating device 39 can be directly transmitted to the container holding part 37. Moreover, desired vibration can be generated by appropriately adjusting the rotation speed of the motor 39a.

  The suspended plate 39d is fixed in a state where both side portions thereof are placed on the upper surface of the diaphragm support member 35 (a flat plate portion 35a described later).

  The vibration plate 36 is a front vibration plate 36a fixed to the front side (side closer to the conveyor 11) of the bottom plate 37a of the container holding portion 37, and the rear side fixed to the rear side (side far from the conveyor 11) of the bottom plate 37a. It consists of 2 pairs of board | plate materials which make the diaphragm 36b 1 set. Specifically, the upper end portions of the four diaphragms 36 are respectively fixed to the container holding portion 37 via mounting brackets. The front diaphragm 36a and the rear diaphragm 36b are inclined at a predetermined angle with respect to the bottom plate 37a of the container holding portion 37 in a side view (the state shown in FIGS. 2 and 3). It is fixed in the space.

  When the vibration of the vibration generating device 39 is transmitted through the container holding part 37, the vibration plate 36 vibrates so as to amplify the vibration of the container holding part 37. In this way, receiving the vibrations of the vibration generating device 39 and the diaphragm 36, the container holding unit 37 vibrates so as to move the electronic component EC housed in the stick 4 to the component supply position at a predetermined speed.

  The vibration plate supporting member 35 extends in the Y direction, and is provided below the flat plate portion 35a provided in a posture substantially parallel to the bottom plate 37a of the container holding portion 37, and the front end of the flat plate portion 35a (the end closer to the conveyor 11). Is provided so as to protrude downward, at the front support portion 35b that is substantially L-shaped in a side view, and at the rear end of the flat plate portion 35a (the end on the side far from the conveyor 11), And a rear support portion 35c having a substantially L shape in a side view. The lower end part of the front diaphragm 36a is fixed to the front support part 35b, and the lower end part of the rear diaphragm 36b is fixed to the rear support part 35c. Thus, by fixing each diaphragm 36a, 36b with the front support part 35b and the back support part 35c which protruded downward from the flat plate part 35a, the fixing position of the upper end part of each diaphragm 36a, 36b and the lower end part A predetermined distance is secured from the fixed position. Further, an opening 35a1 is formed at a predetermined position in the flat plate portion 35a (see FIGS. 3 and 4). The above-described suspension plate 39d is provided so as to straddle the opening 35a1, and the connecting rod 39c, the crank mechanism, and the motor 39a are arranged in a state of being inserted through the opening 35a1. Therefore, even if the diaphragm supporting member 35 is provided, the vibration generating device 39 is disposed in the opening 35a1 formed in the diaphragm supporting member 35, and thus the installation position is not easily restricted.

  The vibration isolating member 34 is a member for preventing vibration generated by the vibration generating device 39 from being transmitted to the base member 33 and further to the surface mounting machine main body via the mounting member 31. Therefore, the vibration isolation member 34 is provided so as to separate the diaphragm support member 35 and the base member 33. The anti-vibration member 34 includes a block-like anti-vibration rubber and a pair of attachment members that sandwich the anti-vibration rubber from both upper and lower ends. In the present embodiment, the vibration isolation members 34 are arranged one by one at the four corners of the lower surface of the diaphragm support member 35. As described above, the vibration plate support member 35 and the base member 33 are connected via the elastic member, so that the vibration energy is absorbed before being transmitted to the base member 33.

  The base member 33 is a plate-like member disposed substantially horizontally below the diaphragm support member 35 so as to overlap the diaphragm support member 35 in plan view. The base member 33 is detachably attached to the vibration isolation member 34 and is fixed to the mounting member 31 with screws or the like. In other words, the base member 33 is also a member that supports the diaphragm support member 35 supported by the four vibration isolation members 34.

  The base member 33 has an opening 33a having a predetermined size at a predetermined position. The vibration generator 39 is provided in the opening 33a. Therefore, it is possible to avoid interference between the base member 33 and the vibration generating device 39 while arranging the vibration generating device 39 and the base member 33 at substantially the same height. That is, since it is not necessary to shift the position of the vibration generating device 39 in the height direction with respect to the base member 33, the multi-stick feeder 3 can be made compact in the vertical direction.

  The mounting member 31 is a member extending in the Y direction for mounting the multi-stick feeder 3 to the mounting machine body. The mounting member 31 protrudes forward in the Y direction, and is inserted into a predetermined position of the feeder base to sandwich the positioning pin 31a for positioning the mounting member 31 and a predetermined portion of the feeder base. And a clamp 31b that attaches to the feeder base at a predetermined position. The mounting member 31 supports the lower surface of the base member 33, and a controller 32 for controlling the drive of the vibration generating device 39 is fixed to the mounting member 31 so as to protrude downward.

  As described above, in the present embodiment, various support members (base member 33, vibration isolation member 34, diaphragm support member 35) and the front diaphragm 36a and the rear diaphragm 36b, as viewed from the side, A vibration generator 39 is provided. Thereby, the support position of the container holding part 37 (that is, the fixed position of the front diaphragm 36a and the rear diaphragm 36b) is separated in the Y direction, the support state of the container holding part 37 is stabilized, and the container holding part 37 Suppresses swinging. Further, the various support members and the vibration generator 39 are housed between the front diaphragm 36a and the rear diaphragm 36b so as not to spread in the horizontal direction. Thereby, the multi-stick feeder 3 realizes a compact configuration as a whole.

  As shown in FIG. 6, the controller 32 drives the main control unit 32A, various programs, a storage unit 32B for storing a vibration pattern for controlling the driving state of the motor 39a of the vibration generating device 39, and the motor 39a. The motor drive unit 32C that performs this operation, the current detection unit 32D that detects the current flowing through the motor drive unit 32C, and the controller 32 on the multi-stick feeder 3 side and the body-side controller 5 on the mounting machine body side are responsible for the exchange of information. Communication control unit 32F. The vibration generator 39 is controlled by the controller 32 based on a vibration pattern including at least two vibrations having different frequencies.

  For example, the controller 32 stops driving the vibration generator 39 after the electronic component EC has moved to the component supply position. Specifically, the vibration of the vibration generator 39 is stopped at a timing when a predetermined time set for a timer in the controller 32 (time required for the electronic component EC to move to the component supply position) has elapsed.

  Here, in the present embodiment, a temporal change (hereinafter referred to as a vibration pattern) of vibration applied to the container holding portion 37 will be described. FIG. 7 is a graph for explaining the start section A, the movement section B, and the stop section C in relation to the motor rotation speed and time. FIG. 8 is a graph for explaining the relationship between the amplitude of the traveling part of the electronic component EC and the time in the container holding part 37 when the vibration generator is driven, and (a) is the front-rear direction (Y direction). (B) shows the vertical amplitude.

  Specifically, as shown in FIG. 7, a starting section A that starts a part by vibration of a relatively large frequency, and the part is moved at a predetermined speed by vibration of a constant frequency that is smaller than that in the starting section A. A moving section B to be stopped, and a stopping section C to stop the component at a predetermined position by vibration whose frequency decreases with time.

  Specifically, the starting section A is a vibration that is applied for a predetermined time (up to the first switching point T1 in FIG. 7) from the start of driving of the vibration generating device 39, and the maximum static frictional force on the electronic component EC. In order to apply a force exceeding the above, the rotational frequency of the motor 39a is greatly increased, the vibration frequency is increased, and a large acceleration is applied to the container holding portion 37. Thereby, the delay of the electronic component EC when the vibration generator 39 starts to be driven is avoided, and the electronic component EC starts smoothly at an appropriate timing.

  The moving section B is a vibration that acts after the starting section A for a predetermined time (from the first switching point T1 to the second switching point T2 in FIG. 7) following the starting section A, and the rotation of the motor 39a. The number is kept constant, the vibration frequency is kept constant, and a constant acceleration is applied to the container holding portion 37. Thereby, the moving speed of the electronic component EC supplied from the stick 4 is kept at a predetermined speed.

  The stop section C is a vibration that acts after the movement section B and continues to the movement section B for a predetermined time (from the second switching point T2 to the stop point T3 in FIG. 7), and the rotation speed of the motor 39a is reduced. Decreasing with the passage of time, the vibration frequency is decreased, the acceleration acting on the container holding portion 37 is changed so as to be gradually decreased, and the electronic component EC is stopped. As a result, when the rotation of the motor 39a is completely stopped, the electronic component EC is prevented from colliding with the stopper 30 at a high speed and bounced off due to the inertial force and deviating from the component suction position.

  Thus, by changing the frequency of the vibration by increasing / decreasing the number of rotations of the motor 39a, the container holding portion 37 can move in the vertical direction and the front / rear direction as shown in FIGS. 8 (a) and 8 (b). Vibrates in (Y direction). That is, the magnitude of the amplitude of the container holding part 37 changes corresponding to the change of the frequency. In the starting section A, the amplitude is amplified and vibrates with a larger amplitude than the other two sections B and C. Then, it vibrates with a constant amplitude smaller than that of the start section A, and in the stop section C, the amplitude attenuates as time passes.

  The lengths (vibration durations) and frequencies of the sections A, B, and C of the vibration pattern are determined based on the type (weight, length in the moving direction, etc.) of the supplied electronic component EC. The These vibration patterns are associated with the type of electronic component EC and stored in the storage unit 52 of the main body controller 5 on the mounting machine main body side.

  The operation of this electronic component supply apparatus will be described in detail below.

  FIG. 9 is a flowchart for driving the vibration generator 39.

  When driving the vibration generating device 39, as shown in FIG. 9, the main body side controller 5 on the mounting machine main body side and the controller 32 on the multi stick feeder 3 side are provided with communication control units 55 and 32F provided respectively. The drive of the vibration generator 39 is controlled while exchanging information via the.

  Specifically, first, in the main body controller 5 on the mounting machine main body side, the main control unit 51 selectively selects a vibration pattern (frequency, vibration duration, etc.) from the component information in the mounting program stored in the storage unit 52. (Step S1). The storage unit 52 stores a plurality of types of vibration patterns as shown in FIGS. 10 to 12 with different rotation speeds and vibration duration times of the motor 39a. Then, the main control unit 51 of the main body controller 5 selects a vibration pattern corresponding to the type of the electronic component EC from a plurality of types of vibration patterns. Therefore, the supply operation can be finely adjusted according to the difference in the electronic component EC, and a different supply operation can be realized according to the form and weight of the electronic component EC.

  Here, the second switching point T2, the motor rotation speed steady value N1, and the motor rotation speed maximum value N2 in FIGS. 10 to 12 will be described. The second switching points T2a, T2b, and T2c in FIG. 10 have a relationship of T2a <T2b <T2c, and the stop points T3a, T3b, and T3c in FIG. 10 have a relationship of T3a <T3b <T3c. Further, the steady values N1a, N1b, and N1c of the motor rotational speed in FIG. 11 have a relationship of N1a <N1b <N1c, and the maximum values of the motor rotational speed N2a, N2b, and N2c in FIG. 11 are N2a <N2b < N2c relationship. Further, the second switching points T2a, T2b, and T2c in FIG. 12 are in a relationship of T2a <T2b <T2c, and the stop points T3a, T3b, and T3c are in a relationship of T3a <T3b <T3c, in FIG. The motor rotation speed steady values N1a, N1b, and N1c have a relationship of N1a <N1b <N1c, and the motor rotation speed maximum values N2a, N2b, and N2c in FIG. 12 have a relationship of N2a <N2b <N2c.

  The main control unit 51 acquires a vibration pattern corresponding to the electronic component EC that is most difficult to send out among the plurality of types of electronic components EC supplied from the multi-stick feeder 3. Here, the electronic component EC that is most difficult to send out is, for example, the electronic component EC that is the heaviest or has the longest length in the moving direction of the component. When selecting a vibration pattern, a vibration pattern corresponding to the electronic component EC that is most difficult to send out (for example, a vibration pattern in which the motor rotation speed (ie, the vibration frequency) indicated by reference sign S1 in FIG. 11 or reference sign S2 in FIG. 12 is greater than the others) When is selected, even when a plurality of types of electronic components EC are supplied, it is possible to prevent a situation in which a component that is most difficult to send out does not reach a predetermined position. Therefore, even when a plurality of types of electronic components EC are supplied onto the bottom plate 37a of the container holding portion 37, the electronic components EC can be reliably delivered to a predetermined position regardless of the type of the electronic components EC.

  Next, the main control unit 51 transmits a drive command and a vibration pattern from the mounting machine main body side to the multi-stick feeder 3 side via the communication control unit 32F (step S2).

  Then, in the controller 32 on the multi-stick feeder 3 side, the main control unit 32A receives and acquires the drive command and vibration pattern transmitted from the mounting machine main body side via the communication control unit 32F (step S3). Then, the main control unit 32A stores the acquired drive pattern in the storage unit 32B.

  Next, the main control unit 32A drives the vibration generator 39 with the vibration pattern acquired in step S3 (step S4). Specifically, the drive of the vibration generator 39 is completed through a start section A for increasing the frequency, a movement section B for maintaining a predetermined frequency, and a stop section C for decreasing the frequency (step S5).

  When the driving of the vibration generating device 39 is completed, the controller 32 on the multi-stick feeder 3 side transmits a signal for notifying the completion of driving via the communication control unit 32F to the main body side controller 5 on the mounting machine main body side. (Step S6).

  Next, in the main body side controller 5 on the mounting machine main body side, the main control unit 51 receives a signal notifying the completion of driving transmitted from the controller 32 on the multi stick feeder 3 side in step S6 via the communication control unit 55. Then, the driving process of the vibration generator 39 is finished (step S7).

  According to the above embodiment, the controller 32 drives the vibration generator 39 based on the vibration pattern including at least two vibrations having different frequencies, and determines the vibration frequency and the vibration duration time at each frequency. Each can be arbitrarily set. That is, the vibration state of the vibration generator 39 is adjusted as desired, and the force applied to the electronic component EC to move the electronic component EC can be controlled more accurately. Therefore, the supply operation of the electronic component EC can be stabilized.

  Furthermore, the vibration pattern has a start section A in which the part is started by vibration of a relatively large frequency, a movement section B in which the part is moved by vibration of a predetermined frequency smaller than that in the start section A, and the frequency is time. And a stop section C in which the component is stopped at a predetermined position by vibration that attenuates toward zero as time passes, and the motor 39a of the vibration generator 39 is driven based on this vibration pattern. That is, different vibrations can be applied to the stick 4 when the electronic component EC starts to move, when the electronic component EC moves, and when the electronic component EC moves, and when the electronic component EC should start moving, It prevents the electronic component EC from stopping at a predetermined position when it should not stop or the electronic component EC should be stopped. Sent out.

  In the embodiment described above, the vibration pattern is described as being stored in the storage unit 52 of the main body controller 5 on the mounting machine main body side. However, the present invention is not limited to this, and the vibration pattern is not limited to this. The form memorize | stored in the memory | storage part 32B of the controller 32 of the multi stick feeder 3 may be sufficient.

  In the above embodiment, the vibration pattern in which the motor rotation speed is constant in the movement section B has been described, but the present invention is not limited to this. FIG. 13 is a graph for explaining another form of the vibration pattern. For example, as shown in FIG. 13 (a), a vibration pattern in which the motor rotation speed (frequency) is repeatedly increased and decreased in the movement section B may be used, or as shown in FIG. 3 (b), A vibration pattern in which the motor rotational speed (frequency) increases in the moving section B with the passage of time may be used, and the motor rotational speed (frequency) in the moving section B is as shown in FIG. It may be a vibration pattern that decreases with the passage of time.

10 Base 3 Multi-stick feeder (Electronic component feeder)
32 Controller 37 Container holding part 39 Vibration generator 4 Stick (container)
EC electronic parts
A Start section B Move section C Stop section P Printed circuit board (board)

Claims (5)

An electronic component supply device that is mounted on a mounting machine body, vibrates a hollow long container in which components are stored, and sends the components to a predetermined position,
A container holding unit for holding the container;
A vibration generating device that is a source of vibration for vibrating the container holding portion;
A controller for controlling the driving state of the vibration generator,
The controller drives the vibration generator based on a vibration pattern including at least two vibrations having different frequencies, and can arbitrarily set the frequency of the at least two vibrations and the duration of vibration at each frequency. An electronic component supply device characterized in that it is configured as described above.   The controller starts a part with a vibration having a relatively large frequency, a moving part in which the part is moved with a vibration having a predetermined frequency smaller than that in the starting part, and the frequency goes to zero as time passes. The electronic component supply device according to claim 1, wherein the vibration generating device is driven based on a vibration pattern including a stop section in which the component is stopped at a predetermined position by vibration that is attenuated.   2. The controller is configured to select a vibration pattern corresponding to the type of component to be supplied from a plurality of types of vibration patterns, and to drive the vibration generator based on the selected vibration pattern. Or the electronic component supply apparatus of 2.   The container holding unit holds a plurality of containers, and the controller is configured to select a vibration pattern corresponding to a part that is most difficult to send out among a plurality of types of parts supplied from the plurality of containers. The electronic component supply apparatus according to claim 3. A surface mounter that transports and mounts components supplied from an electronic component supply device to a predetermined position of a substrate carried on a base,
The surface mounter using the electronic component supply apparatus of any one of Claims 1-4 as said electronic component supply apparatus.

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