Electronic component transport device

Abstract

To provide a transfer device for electronic components that can accurately detect the supply of workpieces to be conveyed and improve productivity.SOLUTION: The transfer device for electric components 1 includes: a container 10; a transfer mechanism 20; a sensor 30; a container tilting mechanism 50; a knock mechanism 40; and a control unit 100. The container 10 has a storage unit 11 and a discharge port 12, the transfer mechanism 20 has a transfer unit 21 that transfers a plurality of electronic components 22, and the sensor 30 is a cross-sectional area sensor that detects a total cross-sectional area 32 of the plurality of electronic components 22. The container tilting mechanism 50 is a mechanism for tilting the container 10. The knocking mechanism 40 is a mechanism for knocking the container 10. When the plurality of electronic components 22 is ejected from the discharge port 12 by the transfer unit 21, the control unit 100 controls the container tilting mechanism 50 to adjust a tilting angle of the container 10 based on detection results of the total cross-sectional area 32 of the plurality of electronic components 22 detected by the sensor 30.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a conveying device for electronic components. [Background technology]

[0002] 2. Description of the Related Art Conventionally, electronic component conveying devices have been known. Patent Document 1 describes a conveying device for electronic components that uses two sensors to detect the amount of workpieces accumulated near a gate at two points and conveys the electronic components. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-218334 Summary of the Invention [Problem to be solved by the invention]

[0004] In the electronic component conveying device described in Patent Document 1, two sensors detect the amount of work accumulated near the gate at only two points, so in order to adjust the supply amount as desired, the sensor position must be manually changed each time, which poses a problem in productivity.

[0005] Furthermore, since a transmission type photoelectric sensor is used to detect the amount of workpiece supplied, it may only be able to detect a portion of the transported workpiece, and may not be able to accurately detect the entire amount of workpiece being transported.

[0006] SUMMARY OF THE INVENTION An object of the present invention is to provide a conveying device for electronic components that can accurately detect the amount of work being conveyed and improve productivity. [Means for solving the problem]

[0007] an electronic component conveying device having a container, a conveying mechanism, a sensor, a container tilting mechanism, a knocking mechanism, and a control unit, wherein the container has a storage section that stores a plurality of electronic components therein and a discharge outlet through which the plurality of electronic components are discharged; the conveying mechanism has a conveying section that conveys the plurality of electronic components discharged from the discharge outlet; the sensor is a cross-sectional area sensor that detects a total cross-sectional area of ​​the plurality of electronic components conveyed in the conveying section; the container tilting mechanism is a mechanism that tilts the container; and the knocking mechanism is a mechanism that taps the container to discharge the plurality of electronic components from the discharge outlet; and the control unit, 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 result of the total cross-sectional area of ​​the plurality of electronic components detected by the sensor. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a conveying device for electronic components that can accurately detect the amount of work being conveyed and improve productivity. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic perspective view of a conveying device for electronic components. [Figure 2] FIG. 2 is a side view of the electronic component transport device. [Figure 3] 1 is a view of the electronic component transport device as seen from the direction of the arrow A. FIG. [Figure 4] FIG. 2 is a block diagram showing functional blocks of a control unit. [Figure 5] 10 is a graph showing the relationship between the container angle and the total cross-sectional area of ​​the electronic component. [Figure 6] 10 is a graph showing the relationship between the container angle and the weight of the electronic component. [Figure 7] 10 is a flowchart of a method for controlling the transport amount of electronic components of an electronic component transport device. [Figure 8]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. DETAILED DESCRIPTION OF THE INVENTION

[0010] An electronic component conveying device according to an embodiment of the present invention will now be described. Fig. 1 is a schematic perspective view of the electronic component conveying device. Fig. 2 is a side view of the electronic component conveying device. Fig. 3 is a view of the electronic component conveying device as seen from the arrow A. An XYZ Cartesian coordinate system is shown in Figs. 1 and 2. As shown in Fig. 1, the X direction is a direction parallel to the direction in which the electronic components are conveyed. The Y direction indicates the width direction of the electronic component conveying device. The Z direction indicates the height direction of the electronic component conveying device.

[0011] 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.

[0012] The container 10 comprises a storage section 11, a discharge port 12, a lid 13 constituting a tilting surface, and a bottom surface 14. The storage section 11 of this embodiment has a container body and the lid 13 constituting 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. Furthermore, the discharge port 12 is positioned so as to be close to the transport mechanism 20 in the vertical direction.

[0013] 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 one that uses a vibration motor or an air vibrator, or various other mechanisms may be used.

[0014] The sensor 30 includes a laser emission mechanism (not shown) and a camera (not shown). The sensor 30 is disposed above the conveyor 21 and measures the conveyance amount of the electronic components 22 conveyed by the conveyor 21. As shown in FIGS. 1, 2, and 3, the sensor 30 emits a strip-shaped laser beam 31 from the laser emission mechanism toward the conveyor 21 and the electronic components 22 conveyed by the conveyor 21. The camera included in the sensor 30 observes the reflected light from the positions where the strip-shaped laser beam 31 strikes the surfaces of the 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 electronic components 22 conveyed by the conveyor 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 conveyed by the conveying 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 multiple 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 strip-shaped laser beam 31 parallel to the Y direction.

[0015] The knock mechanism 40 includes a knock piece 41 and an actuator (not shown). In this embodiment, the knock mechanism 40 is disposed on a side surface of the storage unit 11 in the Y direction. When the container 10 is tilted by a container tilting mechanism 50 (described later), the electronic components 22 stored therein are caught due to friction between the electronic components 22. At this time, the knock piece 41 of the knock mechanism 40 knocks the container 10. As a result, the electronic components 22 stored in the storage unit 11 are easily ejected from the ejection port 12.

[0016] 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 Fig. 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 to tilt the container 10 at 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 will be ejected even more smoothly.

[0017] 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.

[0018] The control unit 100 is configured with an arithmetic processor such as a PLC (Programmable Logic Controller), a DSP (Digital Signal Processor), or an FPGA (Field-Programmable Gate Array). The various functions of the control unit 100 are realized by executing predetermined software (programs) stored in a storage unit, for example. The various functions of the control unit 100 may be realized by a combination of hardware and software, or may be realized only by hardware (electronic circuits).

[0019] The measurement information acquisition unit 104 acquires the total cross-sectional area 32 of the plurality of electronic components 22 transported by the transport unit 21 as the detection result of the sensor 30 .

[0020] The container tilt control unit 101 controls the container tilting mechanism 50 to adjust the tilt angle α of the container. Furthermore, when the conveying unit 21 conveys 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 tilt angle α of the container 10 becomes the predetermined target cross-sectional area 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.

[0021] The determination unit 105 determines whether the electronic components 22 accommodated in the accommodation 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 the 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.

[0022] The transport mechanism control unit 102 controls the transport mechanism 20 that transports the electronic components 22 so as to transport the electronic components 22 at a predetermined transport speed.

[0023] The knock mechanism control unit 103 controls the knocking operation frequency of the knock mechanism 40. The knock mechanism control unit may change the knocking 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 knocking 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.

[0024] 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 or the like. 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.

[0025] 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 amount of transport 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).

[0026] In the knocking step (step S10), the knocking mechanism control unit 103 controls the knocking mechanism 40 so as to achieve the set knocking operation frequency. The knocking mechanism 40 starts to knock the container 10 at the set operation frequency.

[0027] In the conveying step (step S11), the conveying mechanism control unit 102 controls the conveying mechanism 20 that conveys the plurality of electronic components 22 to a predetermined conveying speed. The conveying unit 21 of the conveying mechanism 20 starts to be driven at the predetermined conveying speed.

[0028] In the container tilting step (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 acquired from the sensor 30. The container tilting mechanism 50 drives the container 10 so that the container 10 is tilted at a predetermined tilt angle α based on the acquired total cross-sectional area 32.

[0029] The order of the steps can be changed as appropriate. For example, step S10 and step S11 may be reversed in order.

[0030] 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).

[0031] In the container angle adjustment start step (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 that has been waiting at a standby angle (α=0°).

[0032] In the container angle feedback control process (step S14), the measurement information acquisition unit 104 acquires the total cross-sectional area 32 of the plurality of electronic components 22 transported by the transport unit 21 as the detection result of 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.

[0033] In the determination step (step S15), the determination unit 105 determines whether or not the electronic components 22 accommodated in the accommodation unit 11 are being transported. Specifically, if feedback control is being performed appropriately, the determination unit 105 determines that a plurality of electronic components 22 are being transported by the transport unit 21, and continues the container angle feedback control step (step S14).

[0034] On the other hand, in the determination step (step S15), if the feedback control is not performed appropriately and the presence of the plurality of 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 the conveyance of the plurality of electronic components 22 by the conveyance unit 21 has been completed. In this case, the process proceeds to a stop processing step (step S16).

[0035] In the stop processing step (step S16), the container tilting control unit 101 controls the container tilting mechanism 50 so that the container 10 is at the standby angle (α=0°). Furthermore, the knock mechanism control unit 103 controls the knocking operation of the knock mechanism 40 to be stopped. Furthermore, the transport mechanism control unit 102 controls the driving of the transport unit 21 of the transport mechanism 20 to be stopped. This stops the method of controlling the transport amount of electronic components by the electronic component transport device 1.

[0036] The measurement of the total cross-sectional area 32 of the plurality of electronic components 22 by the sensor 30 can be sampled in a short time. Therefore, the sensor 30 can detect the conveyance amount of the plurality of electronic components 22 as a continuous value. In Patent Document 1, because the workpieces were detected at two detection points, a high-position sensor and a low-position sensor, it was necessary to manually change the sensor position each time to supply a desired amount of work. However, by providing 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 eliminated, thereby improving productivity.

[0037] 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 shows the results 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 the data range of the graph excludes data from 60 seconds before the workpieces were discharged and data from 95 seconds after the workpieces were completely discharged from the container 10's storage section 11. 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.

[0038] 5, experimental results of the relationship between the container angle and the total cross-sectional area of ​​the electronic components indicate that it is more preferable to operate the knock mechanism 40 at all times and set the tilt angle α of the container 10 to 100° or more and 125° or less. By operating the knock mechanism 40 at all times, the likelihood of the electronic components 22 getting caught on each other is reduced. Furthermore, by operating the container 10 at an 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 get stuck 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 electronic components 22 being conveyed, and this makes 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 conveyance becomes nearly proportional, making it easier to handle PID control and therefore easier to set the amount of conveyance as desired.

[0039] The frequency of operation of the knock mechanism 40 by the knock mechanism control unit 103 is preferably 1 time / second or more and 10 times / second or less. More preferably, it is 2 times / second or more and 3 times / second or less. When the frequency of operation of the knock mechanism 40 is 2 times / second or more, it is possible to almost completely eliminate the occurrence of workpiece clogging. Furthermore, by setting it to 3 times / second or less, it is possible to reduce the number of times the workpiece vibrates, thereby reducing the possibility of chipping or cracking of the workpiece.

[0040] Figure 6 is a graph showing the relationship between the container angle and the weight of electronic components. 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 discharged after the 5° increase, the angle was maintained until all the workpieces were discharged or the workpiece jammed again. The above procedure was repeated five times. The fourth trial ended without clearing the jam. In the other trials, almost all the workpieces were discharged. Note that the knock mechanism 40 was not used during the experiment. The weight of electronic components in Figure 6 is a normalized value. The weight of electronic components on the vertical axis of the graph in Figure 6 indicates a relative value based on the weight of electronic components placed in the container in the experiment.

[0041] From the graph of the relationship between the container angle and the weight of electronic components shown in FIG. 6, it can be seen that if the tilt angle α of the container 10 is 105° or more and 115° or less, multiple electronic components 22 can be easily discharged. Such an angle can eliminate clogging of the electronic components 22 near the discharge port 12, and reduce the stochastic variation in the amount of transport of the electronic components 22. 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.

[0042] According to the electronic component conveying device 1 of this embodiment described above, the following effects are achieved.

[0043] (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 for storing a plurality of electronic components 22 therein and a discharge outlet 12 for discharging the plurality of electronic components 22. The conveying mechanism 20 includes a conveying section 21 for conveying the plurality of electronic components 22 discharged from the discharge outlet 12. The sensor 30 detects the 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.

[0044] (2) In the electronic component conveying device 1 described in (1), the tilting angle α of the container 10 is an angle between the lid 13 constituting the tilting 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 electronic components 22 being conveyed, and allowing the electronic components 22 to be constantly discharged from the container 10 like a liquid. The relationship between the angle of the container 10 and the amount of conveyance is nearly proportional, making it easier to handle PID control and making it easier to set the amount of conveyance as desired.

[0045] (3) In the electronic component conveying device 1 described in (1) to (2), the tilting angle α of the container 10 is an angle between the lid 13 constituting the tilting 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 125°. This makes it possible to more effectively eliminate clogging of the electronic components 22 near the outlet 12 .

[0046] (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.

[0047] (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.

[0048] (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.

[0049] (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 conveying section 21. This makes it possible to limit the height at which the workpieces fall onto the conveying 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.

[0050] The present invention is not limited to the configurations of the above-described embodiments, and can be applied by making appropriate modifications within the scope of the present invention. The present invention includes the following combinations.

[0051] <1> 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.

[0052] <2> The tilt angle of the container is The angle between the surface having the outlet and a horizontal plane perpendicular to the direction of gravity is 90° or more and 135° or less. <1> The electronic component conveying device according to claim 1.

[0053] <3> The tilt angle of the container is The angle between the surface having the outlet and a horizontal plane perpendicular to the direction of gravity is 90° or more and 125° or less. <1> or <2> The electronic component conveying device according to claim 1.

[0054] <4> The frequency at which the knocking mechanism knocks on the container is 1 time / second or more and 10 times / second or less. <1> from <3> 10. The electronic component transport device according to claim 9, wherein the electronic component transport device is a

[0055] <5> The frequency at which the knocking mechanism knocks on the container is 2 times / second or more and 3 times / second or less. <1> from <4> 10. The electronic component transport device according to claim 9, wherein the electronic component transport device is a

[0056] <6> The frequency at which the knocking mechanism strikes the container is controlled based on the total cross-sectional area of ​​the electronic components detected by the sensor. <1> from <5> 10. The electronic component transport device according to claim 9, wherein the electronic component transport device is a

[0057] <7> The container further comprises a lid; The lid has the outlet disposed at a lower portion of the lid, The transport mechanism includes: Located at a position lower than the outlet. <1> from <6> 10. The electronic component transport device according to claim 9, wherein the electronic component transport device is a

[0058] <8> The control unit When the plurality of electronic components discharged from the discharge port are transported by the transport unit, 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. <1> from <7> 10. The electronic component transport device according to claim 9, wherein the electronic component transport device is a

[0059] <9> The control unit When the plurality of electronic components discharged from the discharge port are transported by the transport unit, 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, thereby adjusting the tilt angle of the container. <1> from <8> 10. The electronic component transport device according to claim 9, wherein the electronic component transport device is a [Explanation of symbols]

[0060] 1. Electronic component transport device 10 containers 11 Storage section 12 Outlet 13 Lid 20 Transport mechanism 21 Conveyor 22 Multiple electronic components 30 sensors 40 Knock mechanism 50 Container tilting mechanism 100 control section

Claims

1. 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.

2. 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.

3. 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.

4. 3. The electronic component conveying device according to claim 1, wherein the frequency of said knocking mechanism striking said container is from 1 time per second to 10 times per second.

5. 3. The electronic component conveying device according to claim 1, wherein the frequency of said knocking mechanism striking said container is between two and three times per second.

6. 3. The electronic component transport device according to claim 1, wherein the frequency with which said knocking mechanism strikes said container is controlled based on the value of the total cross-sectional area of ​​said plurality of electronic components detected by said sensor.

7. 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.

8. 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.

9. 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.

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