WO2016170644A1 - Feeder device and carrier tape feeding method for feeder device - Google Patents

Abstract

The present invention is the feeder device (3) which is equipped to a component mounting machine (1) and comprises: a reel bearing part (39) for bearing rotatably a supply reel (8) around which a carrier tape (81) has been wound; and a tape feeding mechanism (37) where the constitution includes a drive motor (36) allowing for intermittent drive, and where the carrier tape is pulled out by separation pitch from the supply reel and fed until reaching a component supply position (32). The feeder device (3) further comprises: a number-of-turns detection unit (calculation function of step S2) for detecting the remaining number of turns (Mr) for the carrier tape remaining on the supply reel; and a drive motor control unit (38) for controlling, according to the remaining number of turns, a drive current Id (IS, IM, IL) flowing in the drive motor. In this manner, the drive current is controlled appropriately according to a change in the torque required when the carrier tape is pulled out, and the waste of electrical energy is suppressed.

Description

Feeder device and feeder tape carrier feeding method

The present invention relates to a feeder device that is mounted on a component mounting machine and that feeds a component by feeding out a carrier tape, and a carrier tape feeding method.

Equipment that produces boards with a large number of components mounted on them includes solder printers, component mounters, reflow machines, and board inspection machines. It has become common to configure a substrate production line by connecting these facilities. Among these, the component mounting machine includes a substrate transfer device, a component supply device, a component transfer device, and a control device. As a representative example of the component supply device, there is a feeder device that feeds out a carrier tape holding a component from a supply reel. The carrier tape includes a bottom tape that stores and holds components in component storage portions formed at a predetermined separation pitch, and a cover tape that is bonded to the bottom tape and covers the component storage portions. As a driving source for feeding out the carrier tape, a pulse motor suitable for intermittent driving at intervals of a separation pitch is frequently used. Patent Documents 1 and 2 disclose technical examples related to this type of feeder device.

Patent Document 1 discloses an electronic component supply apparatus that moves a supply table mounted with a large number of component supply units to a component supply position by driving a motor. The electronic component supply device includes a control device that controls the motor and means for calculating the thrust and the load weight of the supply table from the drive current value of the motor, and the control device is obtained from the calculated load weight and the maximum thrust. It is characterized by controlling the movement of the supply table with the maximum acceleration. According to this, even if the load weight changes, the acceleration that can always maintain the maximum output of the motor can be calculated and operated with the optimum tact time, thereby improving the production efficiency.

In addition, the component supply device disclosed in Patent Document 2 includes a feed motor that intermittently feeds a carrier tape, a take-off motor that pulls (peels off) a cover tape to expose an electronic component, and a constant speed during acceleration of the feed motor. A motor control unit that variably sets the motor current value of the take-up motor in response to high speed rotation and deceleration. According to this, the cover tape cannot be slackened, and the cover tape can be reliably taken up.

JP 2002-141695 A JP 2014-127517 A

By the way, in the technique of Patent Document 1 in which the entire supply table mounted with a large number of component supply units is moved, the amount of electric energy consumed is large. For this reason, in recent years, as shown in Patent Document 2, a configuration in which a mounting nozzle of a component transfer device moves to access a large number of component supply units has become mainstream. Moreover, regarding the take-off (peeling) of the cover tape, the form of performing complete peeling exemplified in Patent Document 2 and the form of peeling one side edge of the cover tape and maintaining the adhesive state of the other side edge are used. It has been.

In any form, a drive motor (feed motor) is used for the purpose of pulling out (sending out) the carrier tape from the supply reel. The required torque required to pull out the carrier tape generally increases with a decrease in the number of remaining turns of the carrier tape remaining on the supply reel, and reaches the maximum required torque just before the remaining number of turns disappears. In the prior art, a mechanism for detecting the required torque is not provided, and the drive current flowing through the drive motor is controlled so as to always ensure the maximum required torque. For this reason, when the remaining number of turns is large, an unnecessarily large driving current flows and electric energy is wasted. Patent Documents 1 and 2 do not disclose techniques relating to control of drive current of a drive motor (feed motor).

The present invention has been made in view of the problems of the background art described above, and appropriately controls the drive current flowing through the drive motor in response to a change in the required torque when the carrier tape is pulled out from the supply reel, thereby It is an object to be solved to provide a feeder device and a carrier tape feeding method of the feeder device that suppresses waste of waste.

The feeder device of the present invention that solves the above problems includes a reel support portion that rotatably supports a supply reel on which a carrier tape holding components at a predetermined separation pitch is wound, and a drive motor capable of intermittent drive. And a tape feeding mechanism that pulls out the carrier tape from the supply reel in increments of the separation pitch and feeds the carrier tape to a component supply position, and is mounted on a component mounter, and the component is removed from the carrier tape at the component supply position. A feeder device for sequentially supplying a winding number detecting unit for detecting the remaining number of windings of the carrier tape remaining on the supply reel, and driving for controlling a driving current flowing in the drive motor in accordance with the remaining number of windings A motor control unit.

Further, the carrier tape feeding method of the feeder apparatus according to the present invention includes a reel support portion for rotatably supporting a supply reel wound with a carrier tape holding components at a predetermined separation pitch, and a drive motor capable of intermittent drive. And a tape feeding mechanism that pulls out the carrier tape from the supply reel at intervals of the separation pitch and feeds the carrier tape to a component supply position, and is mounted on a component mounting machine from the carrier tape at the component supply position. A carrier tape feeding method of a feeder device for sequentially supplying parts, wherein a winding number detecting step for detecting a remaining number of turns of the carrier tape remaining on the supply reel, and a drive motor corresponding to the remaining number of turns And a drive motor control step for controlling the flowing drive current.

According to the feeder device of the present invention, the drive motor control unit controls the drive current flowing through the drive motor in accordance with the remaining number of windings of the carrier tape detected by the winding number detection unit. Therefore, the drive current is appropriately controlled in accordance with the change in required torque when the carrier tape is pulled out, and waste of electric energy is suppressed.

Further, according to the carrier tape feeding method of the feeder device of the present invention, the waste of electric energy is suppressed similarly to the effect of the feeder device described above.

It is the top view which illustrated the whole structure of the component mounting machine equipped with the feeder apparatus of 1st Embodiment. It is the side view which showed typically the structure of the feeder apparatus of 1st Embodiment, and has shown the state with many remaining windings of a carrier tape. It is the side view which showed typically the structure of the feeder apparatus of 1st Embodiment, and has shown the state with few remaining winding numbers of a carrier tape. It is a figure of the control flow explaining the control function of a drive motor control part. It is the figure which showed that a drive motor control part controls a drive current in steps. It is the wave form diagram which showed typically the pulse signal and voltage signal which a drive motor control part sends out to a drive motor, and has shown the case of a small drive current. It is the wave form diagram which showed typically the pulse signal and voltage signal which a drive motor control part sends out to a drive motor, and has shown the case of a big drive current. It is the figure which showed that a drive motor control part variably controls a drive current. It is the side view which showed typically the structure of the feeder apparatus of 2nd Embodiment.

(1. Overall configuration of component mounting machine 1)
First, the whole structure of the component mounting machine 1 equipped with the feeder apparatus 3 of 1st Embodiment of this invention is demonstrated. FIG. 1 is a plan view illustrating the overall configuration of a component mounter 1 equipped with the feeder device 3 of the first embodiment. The direction from the right side to the left side in FIG. 1 is the X-axis direction for loading and unloading the substrate K, and the direction from the rear side on the lower side to the front side on the upper side is the Y-axis direction. The component mounter 1 is configured by assembling a substrate carrier device 2, a plurality of feeder devices 3, a component transfer device 4, a component camera 5, a control device 6, and the like on a machine base 11. The substrate transfer device 2, each feeder device 3, the component transfer device 4, and the component camera 5 are controlled by the control device 6, and each performs a predetermined operation.

The substrate transport device 2 carries the substrate K into the mounting position, positions it, and carries it out. The substrate transfer device 2 is composed of a pair of guide rails 21 and 22, a pair of conveyor belts, a backup device, and the like. The pair of guide rails 21, 22 extends in the transport direction (X-axis direction) across the center of the upper surface of the machine base 11 and is assembled to the machine base 11 in parallel with each other. A pair of endless annular conveyor belts (not shown) are juxtaposed inside the pair of guide rails 21 and 22 facing each other. The pair of conveyor belts rotate in a state where both edges of the substrate K are placed on the conveyor conveyance surface, and carry the substrate K into and out of the mounting position set in the center of the machine base 11. A backup device (not shown) is disposed below the mounting position. The backup device pushes up the substrate K, clamps it in a horizontal position, and positions it at the mounting position. As a result, the component transfer device 4 can perform the mounting operation at the mounting position.

The plurality of feeder devices 3 sequentially supply parts. The plurality of feeder devices 3 have a flat shape with a small size in the width direction, and are arranged side by side on the pallet table 12 on the upper surface of the machine base 11. Each feeder device 3 includes a main body portion 31, a reel support portion 39 provided on the rear side of the main body portion 31, a component supply position 32 provided in an upper portion near the front end of the main body portion 31, and the like. The reel support portion 39 rotatably supports the supply reel 8 around which the carrier tape 81 is wound. The detailed configuration of the feeder device 3 will be described later.

The component transfer device 4 sucks components from the component supply positions 32 of the plurality of feeder devices 3 and conveys and mounts them to the positioned substrate K. The component transfer device 4 is an XY robot type device that can move horizontally in the X-axis direction and the Y-axis direction. The component transfer device 4 includes a pair of Y-axis rails 41 and 42 and a Y-axis slider 43 constituting a head driving mechanism, a mounting head 44, a nozzle tool 45, a suction nozzle 46, a substrate camera 47, and the like. The pair of Y-axis rails 41 and 42 are disposed near both side surfaces of the machine base 11 and extend in the front-rear direction (Y-axis direction). A Y-axis slider 43 is movably mounted on the Y-axis rails 41 and 42. The Y-axis slider 43 is driven in the Y-axis direction by a Y-axis ball screw mechanism.

The mounting head 44 is movably mounted on the Y-axis slider 43. The mounting head 44 is driven in the X-axis direction by an X-axis ball screw mechanism. The nozzle tool 45 is held by the mounting head 44 in a replaceable manner. The nozzle tool 45 has one or a plurality of suction nozzles 46 for sucking components and mounting them on the substrate K. The substrate camera 47 is provided on the mounting head 44 along with the nozzle tool 45. The substrate camera 47 images the position reference mark attached to the substrate K and detects the accurate position of the substrate K.

The component camera 5 is provided upward on the upper surface of the machine base 11 between the substrate transfer device 2 and the feeder device 3. The component camera 5 images the state of the component sucked by the suction nozzle 46 while the mounting head 44 moves from the feeder device 3 onto the substrate K. When the image pickup data of the component camera 5 reveals an error in the component adsorption posture, a shift in the rotation angle, or the like, the control device 6 finely adjusts the component mounting operation as necessary. Control to discard.

The control device 6 corresponds to the overall control unit of the component mounting machine 1. The control device 6 is assembled to the machine base 11, and the arrangement position thereof is not particularly limited. The control device 6 holds a mounting sequence that specifies the type and mounting order of components to be mounted on the substrate K, the feeder device 3 that supplies the components, and the like. The control device 6 controls the component mounting operation according to the mounting sequence based on the imaging data of the board camera 47 and the component camera 5, the detection data of the sensor (not shown), and the like. In addition, the control device 6 sequentially collects and updates operation status data such as the number of boards K that have been produced, the mounting time required for component mounting, and the number of occurrences of component suction errors. The control device 6 includes a display unit for displaying information to the operator and an input unit for performing input settings by the operator.

(2. Configuration of the feeder device 3 of the first embodiment)
Next, the structure of the feeder apparatus 3 of 1st Embodiment is demonstrated. 2 and 3 are side views schematically showing the configuration of the feeder device 3 of the first embodiment. 2 shows a state in which the remaining number of turns Mr of the carrier tape 81 wound around the supply reel 8 is large, and FIG. 3 shows a state in which the number of remaining turns Mr of the carrier tape 81 is small.

The reel support portion 39 on the rear side of the main body portion 31 is configured to include two outer peripheral support rollers 391 and 392 that rotatably support the outer periphery of the supply reel 8. However, the present invention is not limited to this, and the reel support portion may have a structure for rotatably supporting the shaft center of the supply reel 8. A carrier tape 81 is wound around the supply reel 8. The carrier tape 81 includes a bottom tape that accommodates and holds components in a component storage portion formed at a predetermined separation pitch, and a cover tape that is bonded to the bottom tape and covers the component storage portion.

A tape guide roller 33 is rotatably supported near the rear of the upper portion of the main body 31. A feeding rail 34 extends from the vicinity of the tape guide roller 33 at the top of the main body 31 to the front end. A component supply position 32 is provided in the upper part near the front end of the feed rail 34. A tape peeling mechanism (not shown) is provided in the middle of the feed rail 34.

A drive sprocket 35 is rotatably supported on the lower side of the feeding rail 34 on the rear side of the component supply position 32. The teeth of the drive sprocket 35 protrude from a groove formed in the feed rail 34 and fit into a sprocket hole formed in the carrier tape 81. The drive sprocket 35 is rotationally driven intermittently by a drive motor 36. The drive sprocket 35 and the drive motor 36 constitute a tape feeding mechanism 37. The carrier tape 81 is pulled out along the supply rail 34 from the supply reel 8 via the tape guide roller 33 by the tape supply mechanism 37. Further, the carrier tape 81 is fed to the component supply position 32 after the cover tape is peeled off from the bottom tape by a tape peeling mechanism.

The driving motor 36 is a pulse motor suitable for intermittent driving at intervals of a separation pitch. The power supply unit 361 of the drive motor 36 adjusts the drive current Id based on the pulse signal CP and the voltage signal CV received from the drive motor control unit 38. The drive motor control unit 38 is an electronic control unit that incorporates a CPU and operates by software. The drive motor control unit 38 is communicatively connected to the control device 6 on the main body side of the component mounter 1. The drive motor control unit 38 calculates the remaining number of turns Mr of the carrier tape 81 wound around the supply reel 8 by a function corresponding to the number of turns detection unit of the present invention. Furthermore, the drive motor control unit 38 generates a pulse signal CP and a voltage signal CV that are control signals based on the calculation result, and sends them to the power supply unit 361 of the drive motor 36.

As the production of the substrate K proceeds in the component mounter 1, the carrier tape 81 is sequentially pulled out, and the remaining number of turns Mr remaining on the supply reel 8 decreases. That is, the state transitions from the state of FIG. 2 to the state of FIG. The required torque required to pull out the carrier tape 81 generally increases as the remaining number of windings Mr decreases. The relationship between the remaining number of windings Mr and the required torque can be calculated using the shape and weight of the supply reel 8 and the carrier tape 81 and the frictional resistance of the outer peripheral support rollers 391 and 392. Further, the relationship between the remaining number of turns Mr and the required torque can also be obtained experimentally. Therefore, the drive motor control unit 38 can obtain the required torque based on the remaining number of turns Mr, and can obtain the drive current Id of the drive motor 36 necessary for generating the required torque.

(3. Operation and Action of Feeder Device 3 of First Embodiment)
Next, the operation and action of the feeder device 3 according to the first embodiment will be described mainly with respect to the function of the drive motor control unit 38. FIG. 4 is a control flow diagram for explaining the control function of the drive motor control unit 38. In step S <b> 1 of FIG. 4, the drive motor control unit 38 acquires information on the total number Nt of parts initially held on the carrier tape 81 and the remaining number Nr of parts remaining on the carrier tape 81 from the control device 6. To do.

Here, the supply reel 8 and the carrier tape 81 set in each of the plurality of feeder devices 3 are collectively managed by the control device 6. That is, the control device 6 knows the type, total number Nt, and remaining number Nr of the parts stored in the carrier tape 81 of each feeder device 3. When a new supply reel 8 is set in the feeder device 3, the control device 6 grasps the total number Nt of parts held on the carrier tape 81 and sets the remaining number Nr = total number Nt as an initial value.

When the supply reel 8 that has been used is set, the control device 6 grasps the total number Nt of parts initially held before the start of use of the carrier tape 81 and the current remaining number Nr. Regardless of whether the supply reel 8 is new or used, the control device 6 counts down the remaining number Nr each time the carrier tape 81 is pulled out and the parts are sucked. For this reason, the drive motor control unit 38 first acquires information on the total number Nt of components, and sequentially acquires information on the remaining number Nr.

In the next step S2, the drive motor control unit 38 calculates the remaining winding number Mr of the carrier tape 81 based on the total number Nt and the remaining number Nr. This calculation can be easily performed using parameters such as the outer diameter of the shaft center of the supply reel 8, the thickness of the carrier tape 81, and the separation pitch of the component storage portion. The calculation function of step S2 corresponds to the winding number detection unit and the winding number detection step of the present invention.

In the next step S3, the drive motor control unit 38 determines whether the remaining number of windings Mr is large, medium, or small by three choices. In order to make the determination, a first specified number of turns M1 and a second specified number of turns M2 (where M1> M2) are determined. When the remaining number of turns Mr is larger than the first specified number of turns M1, the drive motor control unit 38 controls the drive current Id to a small drive current IS in step S4. When the remaining number of turns Mr is equal to or less than the first specified number of turns M1 and greater than the second specified number of turns M2, the drive motor control unit 38 controls the drive current Id to a medium drive current IM in step S5. When the remaining number of turns Mr is less than or equal to the second specified number of turns M1, the drive motor control unit 38 controls the drive current Id to a large drive current IL in step S6.

FIG. 5 is a diagram showing that the drive motor control unit 38 controls the drive current Id step by step. As shown in the figure, the drive motor control unit 38 selectively controls the three stages of drive currents IS, IM, and IL so that the drive current Id increases in response to the decrease in the remaining number of turns Mr. The drive currents IS, IM, and IL represent values when the carrier tape 81 is pulled out at a constant speed in a constant speed period T2, which will be described later.

In step S7 following any of steps S4, S5, and S6, the drive motor control unit 38 sends the pulse signal CP and the voltage signal CV to the power supply unit 361 of the drive motor 36 so as to generate the obtained drive current Id. . As a result, the carrier tape 81 is pulled out from the supply reel 8 by the distance of the separation pitch.

6 and 7 are waveform diagrams schematically showing the pulse signal CP and the voltage signal CV sent from the drive motor control unit 38 to the drive motor 36. FIG. FIG. 6 shows the case of a small drive current IS, and FIG. 7 shows the case of a large drive current IL. The pulse signal CP is a signal for driving the drive motor 36 by a predetermined angle. Therefore, the number of occurrences of the pulse signal CP represents the drawing length of the carrier tape 81, and the frequency of the generation of the pulse signal CP represents the drawing speed of the carrier tape 81. Actually, control using a larger number of pulse signals CP than shown is performed.

On the other hand, the voltage signal CV is a signal for controlling the drive current Id flowing through the drive motor 36. That is, the drive current Id that is approximately proportional to the magnitude of the voltage signal CV flows. Normally, the voltage signal CV and the drive current Id are set with a certain margin for the torque required to pull out the carrier tape 81. As a result, the electric energy supplied to the drive motor 36 is satisfied, and driving at a predetermined angle is repeated. At this time, the electrical energy corresponding to the margin is surplus and is wasted by being converted into heat or vibration. If the voltage signal CV and the drive current Id are too small with respect to the required torque, the electric energy supplied to the drive motor 36 is insufficient, and the drive becomes less than a predetermined angle, causing a problem.

In the acceleration period T1 of FIG. 6 in the case of a small driving current IS, the frequency of generation of the pulse signal CP gradually increases, and the waveform of the voltage signal CV rises sharply and then gradually decreases to the steady value CVS. As a result, the drawing of the carrier tape 81 is started, and the drawing speed is accelerated. In the next constant speed period T2, the large occurrence frequency of the pulse signal CP and the steady value CVS of the voltage signal CV are maintained. The steady value CVS is a control signal corresponding to a small drive current IS. Thereby, the carrier tape 81 is pulled out at a constant speed. In the next deceleration period T3, the frequency of generation of the pulse signal CP gradually decreases and disappears, and the voltage signal CV also gradually decreases and disappears. Thereby, the drawing speed of the carrier tape 81 is decelerated and stopped.

On the other hand, in FIG. 7 in the case of a large drive current IL, the change in the frequency of generation of the pulse signal CP is almost the same as in FIG. Thereby, the time required for pulling out the carrier tape 81 by the separation pitch can be kept constant. Further, the waveform of the voltage signal CV is obtained by enlarging the waveform of the voltage signal CV in FIG. 6 at a substantially constant magnification. The steady value CVL of the voltage signal CV in the constant speed period T2 becomes a control signal corresponding to a large drive current IL. Thus, even if the remaining number of turns Mr decreases and the required torque increases, the carrier tape 81 can be reliably pulled out by driving with a large driving current IL.

The calculation control function of steps S3 to S7 corresponds to a drive motor control step in the carrier tape feeding method of the feeder device of the present invention.

In the prior art, the maximum required torque was always ensured by the control shown in FIG. 7 regardless of the number of remaining turns Mr of the carrier tape 81. For this reason, when the remaining number of turns Mr is large and medium, a large drive current IL is used for a small required torque, and electric energy corresponding to a large margin is wasted. On the other hand, in the first embodiment, when the remaining number of turns Mr is large and medium, it is possible to control the waste of electric energy by controlling to a small driving current IS or a medium driving current IM.

It should be noted that variable continuous control can be adopted instead of the step control of the drive current Id shown in FIGS. FIG. 8 is a diagram showing that the drive motor control unit 38 variably and continuously controls the drive current Id. As shown in the figure, the drive motor control unit 38 can set the minimum drive current Imin at the maximum value Mmax of the remaining number of turns Mr and the maximum drive current Imax at the minimum value Mmin of the remaining number of turns Mr. Further, the drive motor control unit 38 can control the drive current Id to gradually increase from the minimum drive current Imin to the maximum drive current Imax in response to the decrease in the remaining number of turns Mr.

(4. Aspects and effects of the feeder device 3 of the first embodiment)
The feeder device 3 according to the first embodiment includes a reel support portion 39 that rotatably supports a supply reel 8 around which a carrier tape 81 holding components at a predetermined separation pitch is wound, and a drive motor 36 that can be intermittently driven. And a tape feeding mechanism 37 for pulling out the carrier tape 81 from the supply reel 8 at intervals of a separation pitch and feeding it to the component supply position 32, and is mounted on the component mounter 1, and the carrier tape 81 is provided at the component supply position 32. A feeder device 3 that sequentially supplies components from the winding reel, and a winding number detection unit (calculation function in step S2) for detecting the remaining number of turns Mr of the carrier tape 81 remaining on the supply reel 8, and a reduction in the remaining number of turns Mr. Correspondingly, a drive motor control unit 38 for controlling the drive current Id flowing through the drive motor 36 to be large is further provided.

According to this, the drive motor control unit 38 controls the drive current Id flowing through the drive motor 36 so as to increase in response to the decrease in the remaining number of turns Mr of the carrier tape 81 detected by the winding number detection unit. That is, when the remaining number of turns Mr is large and the required torque is small, the drive current IS is controlled to be small, and when the remaining number of turns Mr is decreased and the required torque is increased, the drive current IL is controlled to be large. Therefore, the drive current Id is appropriately controlled in accordance with the change in required torque when the carrier tape 81 is pulled out, and waste of electric energy is suppressed. In other words, a large energy saving effect can be obtained.

Further, the drive motor control unit 38 functions as a winding number detection unit, and the total number Nt of components initially held on the carrier tape 81 from the control device 6 of the component mounter 1 and the components remaining on the carrier tape 81. Is obtained, and the remaining number of turns Mr is calculated based on the total number Nt of parts and the remaining number Nr of parts. According to this, since a sensor for detecting the remaining number of turns Mr is unnecessary, no additional cost is generated.

Furthermore, the drive motor 36 is a pulse motor. According to this, regardless of the magnitude of the drive current Id, the pulling speed of each time the carrier tape 81 can be similarly controlled by the pulse signal CP, so that the component supply operation is stabilized.

Further, the feeder device 3 of the first embodiment can be implemented as a carrier tape feeding method. In other words, the carrier tape feeding method of the feeder device 3 according to the embodiment includes a reel support portion 39 that rotatably supports the supply reel 8 around which the carrier tape 81 holding the components at a predetermined separation pitch is wound, and intermittent drive. And a tape feeding mechanism 37 that pulls out the carrier tape 81 from the supply reel 8 by a distance pitch and feeds the carrier tape 81 to the component supply position 32. 32 is a method of feeding out the carrier tape 81 of the feeder device 3 that sequentially supplies components from the carrier tape 81, and the step of detecting the number of turns to detect the remaining number of turns Mr of the carrier tape 81 remaining on the supply reel 8 (the calculation function of step S2). ) And the drive current Id flowing through the drive motor 36 corresponding to the decrease in the remaining number of turns Mr is large. A drive motor control step of controlling the Kunar so (the operation control function of the steps S3 ~ S7), the.

The effect of the carrier tape feeding method of the feeder device 3 of the embodiment is the same as the effect of the feeder device 3 of the first embodiment.

(5. Feeder device 3A of the second embodiment)
Next, regarding the feeder device 3A of the second embodiment, differences from the first embodiment will be mainly described. FIG. 9 is a side view schematically showing the configuration of the feeder device 3A of the second embodiment. In the second embodiment, the first and second winding number sensors 91 and 92 are used to detect the remaining winding number Mr of the carrier tape 81. More specifically, the first and second winding number sensors 91 and 92 are provided on the reel support portion 39 so as to face the supply reel 8. The first winding number sensor 91 is disposed at a position close to the outer periphery of the supply reel 8 corresponding to the first specified number of windings M1. The second winding number sensor 92 is disposed at a position corresponding to the second specified number of winding times M2 on the center side of the first winding number sensor 91.

On the other hand, the supply reel 8 has two notch windows 82 extending in the radial direction in the reel flange. Therefore, the first and second winding number sensors 91 and 92 can detect that the remaining number of turns Mr of the carrier tape 81 has decreased to the first specified number of turns M1 and the second specified number of turns M2 through the notch window 82. Examples of the first and second winding number sensors 91 and 92 include optical sensors that determine the presence or absence of the carrier tape 81 by blocking and reaching the light passing through the notch window 82, and are not limited thereto. The first and second winding number sensors 91 and 92 send a detection signal for determining the presence or absence of the carrier tape 81 to the drive motor control unit 38A.

The drive motor control unit 38A does not acquire information on the total number Nt of components and the remaining number Nr of components from the control device 6, but instead receives detection signals from the first and second winding number sensors 91 and 92. Based on the detection signal, the drive motor control unit 38A controls the drive current Id in a stepwise manner as in the first embodiment.

In the feeder device 3A of the second embodiment, the winding number detection unit is a first and second winding number sensors 91 and 92 that are provided in the reel support unit 39 and detect the remaining number of windings Mr of the carrier tape 81. . According to this, even if the supply reel 8 is used without being conscious of whether it is a new article or a use, the drive current Id is appropriately controlled, and waste of electric energy is suppressed.

(6. Application and modification of embodiment)
If the technical idea of the first embodiment is applied, it is possible to directly calculate the drive current Id from the total number Nt of components and the remaining number Nr without calculating the remaining winding number Mr. For example, the relationship between the tape remaining rate obtained by dividing the remaining number Nr by the total number Nt and the appropriate drive current Id in the remaining number Nr is obtained in advance and stored in the form of a list in the memory attached to the drive motor control unit 38. Can be kept. Then, the drive motor control unit 38 can calculate the tape remaining rate from the total number Nt and the remaining number Nr acquired from the control device 6, and can directly obtain the drive current Id by referring to the list. The present invention can also be applied to a feeder device that uses a drive motor other than a pulse motor and a feeder device that uses two drive motors in combination. Various other applications and modifications are possible for the present invention.

1: Component mounter 2: Board transfer device 3, 3A: Feeder device 32: Component supply position 36: Drive motor 37: Tape feeding mechanism 38, 38A: Drive motor control unit 39: Reel support unit 4: Component transfer device 5 : Component camera 6: Control device 8: Supply reel 81: Carrier tape 91, 92: First and second winding number sensor

Claims (5)

A reel support portion for rotatably supporting a supply reel wound with a carrier tape holding components at a predetermined separation pitch;
A tape feeding mechanism configured to include a drive motor capable of intermittent driving, and draws out the carrier tape from the supply reel to the component supply position by pulling out the carrier tape at intervals.
A feeder device that is equipped in a component mounting machine and sequentially supplies the components from the carrier tape at the component supply position,
A winding number detection unit for detecting the remaining number of windings of the carrier tape remaining on the supply reel;
A feeder device further comprising: a drive motor control unit that controls a drive current flowing through the drive motor in accordance with the remaining number of turns. The winding number detection unit obtains information on the total number of components initially held on the carrier tape from the overall control unit of the component mounting machine, and information on the remaining number of components remaining on the carrier tape, The feeder device according to claim 1, wherein the remaining number of windings is calculated based on a total number and a remaining number of parts. The feeder device according to claim 1, wherein the winding number detection unit is a sensor that is provided in the reel support unit and detects the remaining number of windings of the carrier tape. The feeder device according to any one of claims 1 to 3, wherein the drive motor is a pulse motor. A reel support portion for rotatably supporting a supply reel wound with a carrier tape holding components at a predetermined separation pitch;
A tape feeding mechanism configured to include a drive motor capable of intermittent driving, and draws out the carrier tape from the supply reel to the component supply position by pulling out the carrier tape at intervals.
A carrier tape feeding method of a feeder device that is equipped in a component mounting machine and sequentially supplies the components from the carrier tape at the component supply position,
A winding number detecting step of detecting the remaining number of windings of the carrier tape remaining on the supply reel;
And a drive motor control step of controlling a drive current flowing through the drive motor in accordance with the remaining number of windings.

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