JP7800481B2 - Electronic component transport device - Google Patents

Description

The present invention relates to a conveying device for electronic components.

2. Description of the Related Art Conventionally, electronic component conveying devices have been known.
Patent Document 1 describes an electronic component conveying device that conveys electronic components by detecting the amount of workpieces accumulated near a gate at two points using two sensors.

Japanese Patent Application Publication No. 10-218334

In the electronic component conveying device described in Patent Document 1, two sensors detect the amount of workpieces accumulated near the gate at only two points, so in order to adjust the desired supply amount, the sensor position must be manually changed each time, posing a productivity issue.

In addition, because a transmission-type photoelectric sensor is used to detect the supply amount of workpieces, it may only be able to detect a portion of the transported workpieces, and may not be able to accurately detect the entire supply amount of the transported workpieces.

The object of the present invention is to provide an electronic component conveying device that can accurately detect the supply amount of work being conveyed and improve productivity.

An electronic component conveying device having a container, a conveying mechanism, a sensor, a container tilting mechanism, a knocking mechanism, and a control unit. The container has a storage section that stores multiple electronic components and a discharge outlet through which the multiple electronic components are discharged. The conveying mechanism has a conveying section that conveys the multiple electronic components discharged from the discharge outlet. The sensor is a cross-sectional area sensor that detects the total cross-sectional area of the multiple electronic components conveyed in the conveying section. The container tilting mechanism is a mechanism that tilts the container. The knocking mechanism is a mechanism that taps the container to discharge the multiple electronic components from the discharge outlet. The control unit controls the container tilting mechanism to adjust the tilt angle of the container based on the detection result of the total cross-sectional area of the multiple electronic components detected by the sensor when the multiple electronic components discharged from the discharge outlet are conveyed by the conveying section.

This invention provides an electronic component conveying device that can accurately detect the supply amount of work being conveyed, thereby improving productivity.

FIG. 1 is a schematic perspective view of a conveying device for electronic components. FIG. 2 is a side view of the electronic component transport device. 1 is a view of the electronic component transport device as seen from the direction of the arrow A; FIG. 2 is a block diagram showing functional blocks of a control unit. 10 is a graph showing the relationship between the container angle and the total cross-sectional area of the electronic component. 10 is a graph showing the relationship between the container angle and the weight of the electronic component. 10 is a flowchart of a method for controlling the transport amount of electronic components of an electronic component transport device. 10 is a flowchart showing an example of details of a container tilting step in the method for controlling the transport amount of electronic components.

The following describes an electronic component conveying device according to an embodiment of the present invention. Figure 1 is a schematic perspective view of the electronic component conveying device. Figure 2 is a side view of the electronic component conveying device. Figure 3 is a view of the electronic component conveying device as seen from direction A. Note that an XYZ Cartesian coordinate system is shown in Figures 1 and 2. As shown in Figure 1, the X direction is parallel to the direction in which the electronic components are conveyed. The Y direction is the width direction of the electronic component conveying device. The Z direction is the height direction of the electronic component conveying device.

As shown in FIG. 1, the electronic component conveying device 1 includes a container 10, a conveying mechanism 20, a sensor 30, a knocking mechanism 40, a container tilting mechanism 50, and a control unit 100. The electronic components include multilayer ceramic capacitors and other chip-type electronic components. The control unit 100 may be located in the electronic component conveying device 1 or may be provided in a server (not shown). The control unit 100 may also be located in multiple locations.

The container 10 includes a storage section 11, a discharge port 12, a lid 13 that forms a tilting surface, and a bottom surface 14. The storage section 11 of this embodiment has a container body and the lid 13 that forms the tilting surface. The discharge port 12 is provided at the bottom of the lid 13. This facilitates the storage of electronic components and makes it easier to discharge the electronic components from an appropriate position. In this embodiment, the angle between the lid 13 and the bottom surface 14 is 90°. The storage section 11 stores multiple electronic components 22 inside the storage section 11.
The discharge port 12 is also positioned so as to be close to the transport mechanism 20 in the vertical direction.

The conveying mechanism 20 includes a conveying unit 21 that conveys the electronic components. For example, the conveying unit 21 may be a conveying belt. The conveying unit 21 is disposed at a position lower than the discharge opening 12 of the storage unit 11. The conveying unit 21 conveys a plurality of electronic components 22 discharged from the discharge opening 12 of the storage unit 11. In this embodiment, the conveying unit 21 horizontally conveys the electronic components in the X direction.
The conveying mechanism 20 may be, but is not limited to, a belt conveyor. The conveying mechanism 20 may also be a conveying mechanism that uses vibration. For example, it may be a vibrating feeder that utilizes the resonance action of electromagnetic vibration and a leaf spring, or it may be a mechanism that uses a vibration motor or an air vibrator, or various other mechanisms may be used.

The sensor 30 includes a laser emission mechanism (not shown) and a camera (not shown). The sensor 30 is disposed above the conveying unit 21 and measures the transport amount of the plurality of electronic components 22 transported by the conveying unit 21. As shown in FIGS. 1 , 2 , and 3 , the sensor 30 emits a band-shaped laser beam 31 from the laser emission mechanism toward the conveying unit 21 and the plurality of electronic components 22 transported by the conveying unit 21. The camera included in the sensor 30 observes the reflected light from positions where the band-shaped laser beam 31 strikes the surfaces of the plurality of electronic components 22. As shown in FIG. 3 , the camera included in the sensor 30 observes the positions of the reflected light, and calculates a total cross-sectional area 32 of the plurality of electronic components 22 transported by the conveying unit 21 based on the results obtained using the principle of triangulation. The process of calculating the total cross-sectional area 32 may be performed by a sensor controller included in the sensor 30 or by the control unit 100 described below. When the control unit 100 performs the calculation, the functional block of the control unit 100 that calculates the total cross-sectional area 32 is considered as a sensor controller that constitutes part of the sensor 30.
For example, the sensor controller calculates the total cross-sectional area 32 of the plurality of electronic components 22 transported by the transport unit 21 using the principle of triangulation based on the position of the reflected light captured by the camera of the sensor 30 .
The total cross-sectional area 32 of the electronic components 22 can be measured by sampling in a short time. The sampling period may be 10 Hz or more and 1000 Hz or less. In this embodiment, the sensor 30 is disposed so as to emit a band-shaped laser beam 31 parallel to the Y direction.

The knock mechanism 40 includes a knock piece 41 and an actuator (not shown). In this embodiment, the knock mechanism 40 is disposed on the Y-direction side of the storage section 11. When the container 10 is tilted by the container tilting mechanism 50 (described below), the multiple electronic components 22 stored therein become caught due to friction between the multiple electronic components 22. At this time, the knock piece 41 of the knock mechanism 40 knocks the container 10. As a result, the multiple electronic components 22 stored in the storage section 11 are easily ejected from the ejection port 12.

The container tilting mechanism 50 is arranged to rotatably support the container 10. In this embodiment, the container tilting mechanism 50 tilts the container 10 by rotating about an axis arranged parallel to the Y direction. The tilt angle α of the container 10 refers to the angle between the lid 13, which forms the tilting surface, and a so-called horizontal plane that is perpendicular to the direction of gravity. The tilt angle α of the container 10 shown in FIG. 2 is tilted at more than 90° with respect to the horizontal plane.
The tilt angle β of the container 10 refers to the angle β between the bottom surface 14 and a so-called horizontal plane that is perpendicular to the direction of gravity. The tilt angle β of the container 10 shown in Figure 2 is tilted at an angle of less than 90° with respect to the horizontal plane.
When the electronic components 22 are being ejected, the container tilting mechanism 50 preferably operates the container 10 with a tilt angle α in the range of 90° to 135°. This allows the electronic components to be ejected appropriately. More preferably, the tilt angle α is in the range of 90° to 125°, and even more preferably, in the range of 100° to 125°. If the tilt angle is in the range of 105° to 115°, the electronic components 22 are ejected even more smoothly.

4 is a block diagram showing functional blocks of the control unit 100. The control unit 100 includes a container tilt control unit 101, a transport mechanism control unit 102, a knock mechanism control unit 103, a measurement information acquisition unit 104, and a determination unit 105.
The control unit 100 is electrically connected to each of the conveying mechanism 20, the sensor 30, the knocking mechanism 40, and the container tilting mechanism 50. The control unit 100 acquires the detection result of the sensor 30. The control unit 100 also outputs signals to control each of the conveying mechanism 20, the knocking mechanism 40, and the container tilting mechanism 50.

The control unit 100 is composed of an arithmetic processor, such as a PLC (Programmable Logic Controller), DSP (Digital Signal Processor), or FPGA (Field-Programmable Gate Array). The various functions of the control unit 100 are realized, for example, by executing specific software (programs) stored in a memory unit. The various functions of the control unit 100 may be realized by a combination of hardware and software, or by hardware (electronic circuits) alone.

The measurement information acquisition unit 104 acquires the total cross-sectional area 32 of the multiple electronic components 22 transported by the transport unit 21 as the detection result of the sensor 30.

The container tilting control unit 101 controls the container tilting mechanism 50 to adjust the tilt angle α of the container. Furthermore, when the transport unit 21 transports the plurality of electronic components 22 discharged from the discharge port, the container tilting control unit 101 controls the container tilting mechanism 50 to adjust the tilt angle α of the container 10 based on the acquired total cross-sectional area 32. In this embodiment, the container tilting control unit 101 controls the container tilting mechanism 50 so that the acquired total cross-sectional area 32 becomes a predetermined target cross-sectional area. As a result, the container tilting mechanism 50 drives the container 10 so that the container 10 becomes the predetermined tilt angle α based on the acquired total cross-sectional area 32.
For example, the container tilting control unit 101 controls the container tilting mechanism 50 based on a comparison result between the set target cross-sectional area and the acquired total cross-sectional area 32 so that the total cross-sectional area 32 approaches the target cross-sectional area. This control may be, for example, feedback control. For example, PID control may be adopted as the feedback control.

The determination unit 105 determines whether electronic components 22 stored in the storage unit 11 are being transported. Specifically, if feedback control is being performed appropriately, the determination unit 105 determines that multiple electronic components 22 are being transported by the transport unit 21. On the other hand, if feedback control is not being performed appropriately and the presence of multiple electronic components 22 cannot be confirmed for a certain period of time based on the acquired total cross-sectional area 32, the determination unit 105 determines that transport of the multiple electronic components 22 by the transport unit 21 has been completed. If feedback control is not being performed appropriately and the presence of multiple electronic components 22 can be confirmed, the determination unit 105 may issue a notification to notify that feedback control is not being performed appropriately.

The transport mechanism control unit 102 controls the transport mechanism 20, which transports multiple electronic components 22, to maintain a predetermined transport speed.

The knock mechanism control unit 103 controls the knock operation frequency of the knock mechanism 40. The knock mechanism control unit may change the knock operation frequency based on the acquired total cross-sectional area 32. In this case, the frequency with which the knock mechanism 40 knocks the container 10 is controlled based on the value of the total cross-sectional area 32 detected by the sensor 30. For example, the knock operation frequency may be increased when the acquired total cross-sectional area 32 is smaller than the target cross-sectional area by a predetermined amount or more, and may be decreased when the acquired total cross-sectional area 32 is larger than the target cross-sectional area by a predetermined amount or more.

The control unit 100 may also have a registration unit (not shown). The registration unit registers information about the transport amount in a memory unit. Specifically, information about the transport amount required of the electronic component transport device 1 is stored in the memory unit. This registration operation is performed, for example, by an input operation by an operator or by control of a higher-level system, etc. The transport amount information may be a target cross-sectional area, or may be information that can be converted into a target cross-sectional area.

Next, a method for controlling the transport amount of electronic components in the electronic component transport device 1 of this embodiment will be described with reference to Fig. 7. Fig. 7 is a flowchart for explaining a method for controlling the transport amount of electronic components in the electronic component transport device 1.
The method for controlling the transport amount of electronic components in the electronic component transport device 1 includes a knocking step (step S10), a transporting step (step S11), and a container tilting step (step S12).

In the knocking process (step S10), the knocking mechanism control unit 103 controls the knocking mechanism 40 to achieve the set knocking operation frequency. The knocking mechanism 40 begins to knock the container 10 at the set operation frequency.

In the conveying process (step S11), the conveying mechanism control unit 102 controls the conveying mechanism 20, which conveys multiple electronic components 22, to achieve a predetermined conveying speed. The conveying unit 21 of the conveying mechanism 20 begins to operate at the predetermined conveying speed.

In the container tilting process (step S12), the container tilting control unit 101 controls the container tilting mechanism 50 based on the total cross-sectional area 32 of the multiple electronic components 22 obtained from the sensor 30. The container tilting mechanism 50 drives the container 10 so that it is tilted at a predetermined tilt angle α based on the obtained total cross-sectional area 32.

The order of each step can be changed as appropriate; for example, step S10 and step S11 may be reversed.

FIG. 8 is a flowchart showing an example of the details of the container tilting step in the method for controlling the transport amount of electronic components.
The container tilting step (step S12) includes a container angle adjustment start step (step S13), a container angle feedback step (step S14), a determination step (step S15), and a stop processing step (step S16).

In the container angle adjustment start process (step S13), the container tilt control unit 101 tilts the container tilting mechanism 50 to a predetermined tilt angle α with respect to the container 10, which has been waiting at a standby angle (α = 0°).

In the container angle feedback control process (step S14), the measurement information acquisition unit 104 acquires the total cross-sectional area 32 of the multiple electronic components 22 transported by the transport unit 21 as a detection result from the sensor 30. Then, the container tilt control unit 101 feedback-controls the container tilting mechanism 50 based on the acquired total cross-sectional area 32 so that the acquired total cross-sectional area 32 becomes a predetermined target cross-sectional area.

In the determination process (step S15), the determination unit 105 determines whether the electronic components 22 stored in the storage unit 11 are being transported. Specifically, if feedback control is being performed appropriately, the determination unit 105 determines that multiple electronic components 22 are being transported by the transport unit 21, and continues the container angle feedback control process (step S14).

On the other hand, in the judgment process (step S15), if feedback control is not being performed appropriately and the presence of multiple electronic components 22 cannot be confirmed for a certain period of time based on the acquired total cross-sectional area 32, the judgment unit 105 determines that the conveyance of multiple electronic components 22 by the conveyance unit 21 has been completed. In this case, the process proceeds to the stop processing process (step S16).

In the stop processing step (step S16), the container tilt control unit 101 controls the container tilting mechanism 50 to set the container 10 at the standby angle (α = 0°). The knock mechanism control unit 103 also controls the knocking operation of the knock mechanism 40 to stop. The transport mechanism control unit 102 also controls the drive of the transport unit 21 of the transport mechanism 20 to stop. This stops the method of controlling the transport amount of electronic components by the electronic component transport device 1.

The measurement of the total cross-sectional area 32 of the multiple electronic components 22 by the sensor 30 can be sampled in a short time. As a result, the sensor 30 can detect the conveyance amount of the multiple electronic components 22 as a continuous value. In Patent Document 1, the workpieces were detected at two detection points, a high-position sensor and a low-position sensor, so in order to supply the desired amount, the sensor position had to be manually changed each time. However, by using the above configuration, the supply amount of the conveyed workpieces can be accurately detected, and furthermore, the work of manually changing the sensor position is no longer necessary, improving productivity.

Figure 5 is a graph showing the relationship between the container angle and the total cross-sectional area of electronic components. The graph in Figure 5 is the result of the following experiment. In this experiment, the tilt angle α of the container 10 was increased and decreased between 100° and 125°, and the cross-sectional area of the workpieces passing through the conveying section 21 was measured. Note that data from 60 seconds before the workpieces were discharged and data from 95 seconds after the workpieces were completely discharged from the storage section 11 of the container 10 are excluded from the data range of the graph. Note that in this experiment, the knock mechanism 40 was continuously operated. The cross-sectional areas on the right side of the graph in Figure 5 are normalized values. The cross-sectional areas in Figure 5 are relative values based on the maximum cross-sectional area detected when the container was first tilted to an angle of 115° 60 seconds after the start of the experiment.

5 , based on the experimental results of the relationship between the container angle and the total cross-sectional area of the electronic components, it is more preferable to operate the knock mechanism 40 constantly and set the tilt angle α of the container 10 to 100° or more and 125° or less. By operating the knock mechanism 40 constantly, the likelihood of the electronic components 22 getting caught on each other is reduced. Furthermore, by operating the container 10 at the angle α of 100° or more and 125° or less, the gravity of the electronic components 22 becomes greater than the frictional force generated between the electronic components 22 near the discharge port 12, making it less likely that the electronic components 22 will become clogged near the discharge port 12.
By eliminating clogging of the electronic components 22 near the discharge port 12, it is possible to reduce the stochastic variation in the amount of transport of the electronic components 22, thereby making it possible to constantly discharge the electronic components 22 like a liquid from the container 10. If the tilt angle α of the container 10 is 100° or more and 125° or less, the relationship between the tilt angle of the container 10 and the amount of transport becomes nearly proportional, making it easier to handle PID control and therefore making it easier to arbitrarily set the amount of transport.

The operation frequency of the knock mechanism 40 controlled by the knock mechanism control unit 103 is preferably 1 time per second or more and 10 times per second or less. It is even more preferably 2 times per second or more and 3 times per second or less. Setting the operation frequency of the knock mechanism 40 to 2 times per second or more can almost completely eliminate workpiece jamming. Setting it to 3 times per second or less can reduce the number of times the workpiece vibrates, lowering the possibility of chipping or cracking of the workpiece.

Figure 6 is a graph showing the relationship between container angle and electronic component weight. The graph in Figure 6 shows the results of the following experiment. In this experiment, (a) the container tilt angle α was increased by 5° from 90°, up to a maximum of 125°. (b) If the workpiece jam was not cleared after the 5° increase, the angle was increased by another 5°. (c) If the workpiece jam was cleared and the workpiece was ejected after the 5° increase, the angle was maintained until all the workpieces were ejected or the workpiece jammed again. The above procedure was tried five times in total. The fourth trial ended without clearing the workpiece jam. In the other trials, almost all the workpieces were ejected. Note that the knock mechanism 40 was not used during the experiment. The electronic component weights in Figure 6 are normalized values. The electronic component weights on the vertical axis of the graph in Figure 6 represent relative values based on the weight of the electronic components placed in the container in the experiment.

From the graph of FIG. 6 showing the relationship between the container angle and the weight of electronic components, it can be seen that if the tilt angle α of the container 10 is between 105° and 115°, the electronic components 22 can be easily discharged.
With such an angle, clogging of the electronic components 22 near the discharge port 12 can be eliminated, and the stochastic variation in the transport amount of the electronic components 22 can be reduced.
If the tilt angle α of the container 10 is less than 105°, the electronic components 22 will not be sufficiently discharged from the discharge port 12 unless the knocking mechanism 40 for striking the container 10 is used.

The electronic component conveying device 1 of this embodiment described above provides the following advantages:

(1) The electronic component conveying device 1 of this embodiment includes a container 10, a conveying mechanism 20, a sensor 30, a container tilting mechanism 50, a knocking mechanism 40, and a control unit 100. The container 10 includes a storage section 11 that stores a plurality of electronic components 22 therein and a discharge outlet 12 that discharges the plurality of electronic components 22. The conveying mechanism 20 includes a conveying section 21 that conveys the plurality of electronic components 22 discharged from the discharge outlet 12. The sensor 30 detects a total cross-sectional area of the plurality of electronic components 22 conveyed in the conveying section 21. The cross-sectional area sensor has a measuring unit that measures the total cross-sectional area 32, the container tilting mechanism 50 is a mechanism that tilts the container 10, the knocking mechanism 40 is a mechanism that knocks the container to discharge multiple electronic components 22 from the discharge outlet 12, and when the multiple electronic components 22 discharged from the discharge outlet 12 are transported by the transport unit 21, the control unit 100 controls the container tilting mechanism 50 to adjust the tilt angle α of the container 10 based on the detection result of the total cross-sectional area 32 of the multiple electronic components 22 detected by the sensor 30.
This makes it possible to provide a conveying device for electronic components that can accurately detect the amount of work being conveyed and improve productivity.
According to this embodiment, by providing a cross-sectional area sensor instead of a photoelectric sensor or a laser displacement sensor that detects only a portion, it is possible to accurately detect the entire supply amount of workpieces transported by the transport unit. Furthermore, because the amount of workpieces detected by the sensor can be detected continuously, there is no need to manually change the sensor position each time as in conventional technology, which improves productivity.

(2) In the electronic component conveying device 1 described in (1), the tilt angle α of the container 10 is an angle between the lid 13 that forms the tilt surface with the discharge outlet 12 and a horizontal plane perpendicular to the direction of gravity that is greater than or equal to 90° and less than or equal to 135°.
This eliminates clogging of the electronic components 22 near the discharge port 12, reducing the stochastic variation in the amount of transport of the electronic components 22, and allowing the electronic components 22 to be constantly discharged like a liquid from the container 10. The relationship between the angle of the container 10 and the amount of transport becomes nearly proportional, making it easier to handle PID control and making it easier to arbitrarily set the amount of transport.

(3) In the electronic component conveying device 1 described in (1) to (2), the tilt angle α of the container 10 is an angle between the lid 13 constituting the tilt surface with the discharge outlet 12 and a horizontal plane perpendicular to the direction of gravity that is 90° or more and 125° or less.
This makes it possible to more effectively eliminate clogging of the electronic components 22 near the outlet 12 .

(4) In the electronic component conveying device 1 according to any one of (1) to (3), the frequency of striking the container 10 is 1 time/second or more and 10 times/second or less.
This can sufficiently reduce the likelihood of the electronic components 22 getting caught on each other.

(5) In the electronic component conveying device 1 according to any one of (1) to (4), the frequency of striking the container 10 is between 2 times/second and 3 times/second.
This almost completely eliminates workpiece clogging. Also, by reducing the number of times the workpiece vibrates, the possibility of chipping or cracking of the workpiece can be reduced.

(6) In the electronic component conveying device 1 described in (1) to (5), the frequency of striking the container is controlled based on the value of the total cross-sectional area 32 of the plurality of electronic components measured by the cross-sectional area sensor.
This allows the transport amount of the plurality of electronic components 22 to be effectively controlled.

(7) In the electronic component conveying device 1 described in (1) to (6), the container 10 further has a lid 13, and the lid 13 has a discharge outlet 12 located at the bottom of the lid 13, and the conveying mechanism 20 is located at a position lower than the discharge outlet 12.
By arranging the discharge outlet 12 below the lid 13 of the container 10, the outlet from which the electronic components 22 are discharged can be limited to only the discharge outlet 12 located at a position close in height to the transport section 21. This makes it possible to limit the height at which the workpieces fall onto the transport section 21, and to prevent the electronic components 22 from chipping or cracking due to falling from the storage section 11.
For example, in Patent Document 1, there is no limit to the height to which the workpiece and the tray can be dropped. When a workpiece falls beyond the gate, if the height from which the workpiece and the tray are dropped exceeds a certain level, the impact of the drop increases the possibility of chipping or cracking the workpiece.

The present invention is not limited to the configuration of the above embodiment, and can be modified and applied as appropriate within the scope that does not deviate from the gist of the present invention. The present invention includes the following combinations.

<1> A conveying device for electronic components having a container, a conveying mechanism, a sensor, a container tilting mechanism, a knocking mechanism, and a control unit,
The container comprises:
a housing portion that houses a plurality of electronic components therein;
an outlet for discharging the plurality of electronic components;
The transport mechanism includes:
a conveying unit that conveys the plurality of electronic components discharged from the discharge port,
The sensor
a cross-sectional area sensor for detecting a total cross-sectional area of the plurality of electronic components transported by the transport unit;
The container tilting mechanism includes:
a mechanism for tilting the container,
The knock mechanism includes:
a mechanism for striking the container to eject the plurality of electronic components through the ejection port,
The control unit
An electronic component conveying device that, when the plurality of electronic components discharged from the discharge outlet are conveyed by the conveying section, controls the container tilting mechanism to adjust the tilt angle of the container based on the detection results of the total cross-sectional area of the plurality of electronic components detected by the sensor.

<2> The tilt angle of the container is
The electronic component conveying device according to <1>, wherein an angle between the surface including the discharge port and a horizontal plane perpendicular to the direction of gravity is 90° or more and 135° or less.

<3> The tilt angle of the container is
The electronic component conveying device according to <1> or <2>, wherein an angle between the surface including the discharge port and a horizontal plane perpendicular to the direction of gravity is 90° or more and 125° or less.

<4> The electronic component conveying device described in any one of <1> to <3>, wherein the frequency at which the knocking mechanism knocks on the container is 1 time/second or more and 10 times/second or less.

<5> The electronic component conveying device described in any one of <1> to <4>, wherein the frequency at which the knocking mechanism knocks on the container is between 2 times per second and 3 times per second.

<6> An electronic component conveying device described in any one of <1> to <5>, wherein the frequency with which the knocking mechanism strikes the container is controlled based on the total cross-sectional area of the electronic components detected by the sensor.

<7> The container further has a lid,
The lid has the outlet disposed at a lower portion of the lid,
The transport mechanism includes:
The electronic component transport device according to any one of <1> to <6>, which is disposed at a position lower than the discharge port.

<8> The control unit
The electronic component conveying device according to any one of <1> to <7>, wherein when the plurality of electronic components discharged from the discharge outlet are conveyed by the conveying section, the container tilting mechanism is feedback-controlled based on the detection result of the total cross-sectional area of the plurality of electronic components detected by the sensor, to adjust the tilt angle of the container.

<9> The control unit
The electronic component conveying device according to any one of <1> to <8>, wherein when the plurality of electronic components discharged from the discharge outlet are conveyed by the conveying section, the container tilting mechanism is PID controlled based on the detection result of the total cross-sectional area of the plurality of electronic components detected by the sensor, to adjust the tilt angle of the container.

REFERENCE SIGNS LIST 1 Electronic component conveying device 10 Container 11 Storage section 12 Discharge outlet 13 Lid 20 Conveying mechanism 21 Conveying section 22 Multiple electronic components 30 Sensor 40 Knocking mechanism 50 Container tilting mechanism 100 Control section

Claims (9)

A conveying device for electronic components, comprising: a container; a conveying mechanism; a sensor; a container tilting mechanism; a knocking mechanism; and a control unit,
The container comprises:
a housing portion that houses a plurality of electronic components therein;
an outlet for discharging the plurality of electronic components;
The transport mechanism includes:
a conveying unit that conveys the plurality of electronic components discharged from the discharge port,
The sensor
a cross-sectional area sensor for detecting a total cross-sectional area of the plurality of electronic components transported by the transport unit;
The container tilting mechanism includes:
a mechanism for tilting the container,
The knock mechanism includes:
a mechanism for striking the container to eject the plurality of electronic components through the ejection port,
The control unit
An electronic component conveying device that, when the plurality of electronic components discharged from the discharge outlet are conveyed by the conveying section, controls the container tilting mechanism to adjust the tilt angle of the container based on the detection results of the total cross-sectional area of the plurality of electronic components detected by the sensor. The tilt angle of the container is
2. The electronic component conveying device according to claim 1, wherein the angle between the surface having the discharge outlet and a horizontal plane perpendicular to the direction of gravity, as viewed in a rotation direction from the surface having the discharge outlet to the inside of the storage section that stores the plurality of electronic components, is 90° or more and 135° or less. The tilt angle of the container is
2. The electronic component conveying device according to claim 1, wherein the angle between the surface having the discharge outlet and a horizontal plane perpendicular to the direction of gravity, as viewed in a rotation direction from the surface having the discharge outlet to the inside of the storage section that stores the plurality of electronic components, is 90° or more and 125° or less. The electronic component conveying device according to claim 1 or 2, wherein the frequency at which the knocking mechanism strikes the container is between 1 strike per second and 10 strikes per second. The electronic component conveying device of claim 1 or 2, wherein the knocking mechanism knocks the container at a frequency of 2 times per second or more and 3 times per second or less. The electronic component conveying device described in claim 1 or claim 2, wherein the frequency with which the knocking mechanism strikes the container is controlled based on the total cross-sectional area of the electronic components detected by the sensor. The container further comprises a lid;
The lid has the outlet disposed at a lower portion of the lid,
The transport mechanism includes:
3. The electronic component transport device according to claim 1, wherein the electronic component transport device is disposed at a position lower than the discharge port. The control unit
3. The electronic component conveying device according to claim 1, wherein when the plurality of electronic components discharged from the discharge outlet are conveyed by the conveying section, the container tilting mechanism is feedback controlled based on the detection results of the total cross-sectional area of the plurality of electronic components detected by the sensor, to adjust the tilt angle of the container. The control unit
3. The electronic component conveying device according to claim 1, wherein when the plurality of electronic components discharged from the discharge outlet are conveyed by the conveying section, the container tilting mechanism is PID controlled to adjust the tilt angle of the container based on the detection results of the total cross-sectional area of the plurality of electronic components detected by the sensor.