JP7448383B2 - Parts supply device and parts management system - Google Patents

Description

The present invention relates to a parts supply device and the like that supplies parts stored in a storage warehouse in bulk to a supply position.

The following patent document describes a technology related to a component supply device that supplies components stored in a storage warehouse in bulk to a supply position.

Japanese Patent Application Publication No. 2000-77894

An object of the present invention is to appropriately supply parts stored in a storage warehouse in bulk.

In order to solve the above problems, the present specification includes a storage that stores a plurality of parts in a loose state, and a sensor that detects the remaining amount of the parts stored in the storage, A component supply device that supplies the plurality of components stored in the storage warehouse to a supply position, wherein the sensor detects the plurality of components stored in the storage warehouse during a predetermined period of time from the timing when the components stored in the storage warehouse are supplied to the supply position. Detecting the remaining amount of parts stored in the storage warehouse multiple times , and based on the results of the multiple detections, detecting whether the remaining amount of the parts stored in the storage storage is an appropriate amount. A component supply device is disclosed.

Moreover, in order to solve the above-mentioned problem, the present specification includes a storage that stores a plurality of parts in a loose state, and a sensor that detects the remaining amount of the parts stored in the storage, A component supply device that supplies the plurality of components stored in a storage to a supply position, and a management device that manages the remaining amount of components stored in the storage based on the detection result of the sensor. , the sensor detects the remaining amount of the parts stored in the storage warehouse multiple times at a predetermined timing during a predetermined period of time from the timing when the parts stored in the storage storage are supplied to the supply position. , discloses a parts management system in which the management device manages whether the remaining amount of parts stored in the storage warehouse is an appropriate amount.

According to the present disclosure, the remaining amount of components stored in the storage is detected by the sensor at the timing when the components are supplied to the supply position. This makes it possible to recognize the remaining amount of parts stored in the storage, and it is possible to appropriately supply the parts stored in the storage in bulk.

It is a perspective view showing a component mounting machine. FIG. 2 is a perspective view showing a component mounting device of a component mounting machine. FIG. 2 is a perspective view showing a bulk parts supply device. It is a perspective view showing a parts supply unit. FIG. 3 is a transparent view showing the parts supply unit. FIG. 3 is a transparent view showing the parts supply unit. It is a perspective view showing a parts scattering device. It is a perspective view showing a parts scattering device. It is a perspective view showing a component holding head. It is a figure showing a component receiving member in a state where electronic circuit components are housed. FIG. 2 is a block diagram showing a control device of the component mounting machine. FIG. 8 is a diagram showing a component supply device 88 containing a large amount of components. FIG. 3 is a diagram showing a screen displayed on a monitor of the central control device. FIG. 3 is a diagram showing a screen displayed on a monitor of the central control device. It is a figure which shows the component supply device 88 which accommodated the small amount of components. FIG. 3 is a diagram showing a screen displayed on a monitor of the central control device.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below in detail as modes for carrying out the present invention with reference to the drawings.

(A) Configuration of component mounter FIG. 1 shows a component mounter 10. The component mounting machine 10 is a device for mounting components onto the circuit board 12. The component mounting machine 10 includes an apparatus main body 20, a base material conveyance/holding device 22, a component mounting device 24, imaging devices 26, 28, a component supply device 30, a bulk component supply device 32, and a control device (see FIG. 11) 34. There is. Note that examples of the circuit base material 12 include a circuit board, a base material with a three-dimensional structure, and the like, and examples of the circuit board include a printed wiring board, a printed circuit board, and the like.

The device main body 20 includes a frame 40 and a beam 42 mounted on the frame 40. The base material conveyance/holding device 22 is disposed at the center of the frame 40 in the front-rear direction, and includes a conveyance device 50 and a clamp device 52. The transport device 50 is a device that transports the circuit board 12, and the clamp device 52 is a device that holds the circuit board 12. Thereby, the base material conveying and holding device 22 transports the circuit base material 12 and holds the circuit base material 12 fixedly at a predetermined position. In the following description, the direction in which the circuit board 12 is transported will be referred to as the X direction, the horizontal direction perpendicular to that direction will be referred to as the Y direction, and the vertical direction will be referred to as the Z direction. That is, the width direction of the component mounter 10 is the X direction, and the front and back direction is the Y direction.

The component mounting device 24 is disposed on the beam 42 and has two working heads 60 and 62 and a working head moving device 64. Each work head 60, 62 has a suction nozzle (see FIG. 2) 66, and the suction nozzle 66 holds the component. Further, the work head moving device 64 includes an X-direction moving device 68, a Y-direction moving device 70, and a Z-direction moving device 72. Then, the two working heads 60 and 62 are integrally moved to any position on the frame 40 by the X-direction moving device 68 and the Y-direction moving device 70. Further, as shown in FIG. 2, each work head 60, 62 is detachably attached to a slider 74, 76, and the Z-direction moving device 72 moves the slider 74, 76 individually in the vertical direction. That is, the work heads 60 and 62 are individually moved in the vertical direction by the Z direction moving device 72.

The imaging device 26 is attached to the slider 74 in a state facing downward, and is moved together with the work head 60 in the X direction, the Y direction, and the Z direction. Thereby, the imaging device 26 images an arbitrary position on the frame 40. As shown in FIG. 1, the imaging device 28 is disposed facing upward between the base material conveying and holding device 22 on the frame 40 and the component supply device 30. Thereby, the imaging device 28 images the parts held by the suction nozzles 66 of the work heads 60 and 62.

The component supply device 30 is removably positioned at one end of the frame 40 in the front-rear direction. The component supply device 30 includes a tray-type component supply device 78 and a feeder-type component supply device (not shown). The tray type component supply device 78 is a device that supplies components placed on a tray. The feeder type component supply device is a device that supplies components using a tape feeder (not shown) or a stick feeder (not shown).

The bulk parts supply device 32 is removably disposed at the other end of the frame 40 in the front-rear direction. The bulk parts supply device 32 is a device that aligns a plurality of scattered parts and supplies the parts in the aligned state. In other words, it is an apparatus that aligns a plurality of parts in arbitrary orientations in a predetermined orientation and supplies the parts in a predetermined orientation. The configuration of the component supply device 32 will be described in detail below. Note that the components supplied by the component supply device 30 and the bulk component supply device 32 include electronic circuit components, solar cell components, power module components, and the like. Furthermore, electronic circuit components include components with leads, components without leads, and the like.

As shown in FIG. 3, the bulk parts supply device 32 includes a main body 80, a parts supply unit 82, an imaging device 84, and a parts delivery device 86.

(a) Component Supply Unit The component supply unit 82 includes a component supply device 88, a component scattering device (see FIG. 4) 90, and a component return device (see FIG. 4) 92. and a parts return device 92 are integrally constructed. The component supply units 82 are each positioned on the base 96 of the main body 80 and assembled in a detachable manner by an operator without the use of tools. , are arranged in a line in the X direction.

The component supply device 88 has a generally rectangular parallelepiped box shape, and is disposed so as to extend in the Y direction, as shown in FIGS. 4 and 5. Note that the Y direction is described as the front-rear direction of the component supply device 88, and the direction toward the side where the component return device 92 is disposed in the component supply unit 82 is described as the front direction, and the direction toward the side where the component supply device 88 is disposed is described as the front direction. The direction toward the side where the object is facing is described as backward. Further, the direction perpendicular to the front-rear direction of the component feeder 88 and the generally horizontal direction is referred to as the width direction of the component feeder 88.

The component supply device 88 is open at the top and the front, and the opening on the top is used as a component input port 97 and the front opening is used as a component discharge port 98. In the component supply device 88, an inclined plate 104 is disposed below the input port 97. The inclined plate 104 is arranged so as to be inclined downward from the rear end surface of the component supply device 88 toward the center.

Furthermore, a conveyor device 106 is disposed on the front side of the inclined plate 104, as shown in FIG. The conveyor device 106 is arranged so as to be inclined upward from the front end of the inclined plate 104 toward the front of the component supply device 88 . Note that the conveyor belt 112 of the conveyor device 106 rotates counterclockwise in FIG. 5 . That is, the conveyance direction by the conveyor device 106 is diagonally upward from the front end of the inclined plate 104 toward the front.

Further, an inclined plate 126 is provided below the front end of the conveyor device 106. The inclined plate 126 is disposed toward the lower side of the conveyor device 106 from the front end surface of the component supply device 88, and the rear end thereof is inclined diagonally downward. Further, an inclined plate 128 is provided below the inclined plate 126 as well. The inclined plate 128 is inclined from below the central portion of the conveyor device 106 toward the discharge port 98 of the component feeder 88 so that the front end thereof is located downward.

Furthermore, a detection sensor 130 is disposed inside the component supply device 88 above the lower end of the conveyor device 106 . The detection sensor 130 is an optical sensor and includes a light projecting section 132 and a light receiving section 134. The light projecting section 132 and the light receiving section 134 are disposed to face each other inside a pair of side walls 136 and 138 in the width direction of the component supply device 88. In other words, the light projecting section 132 and the light receiving section 134 are disposed on the outside of the side wall 136 in a state where the light projecting section 132 and the light receiving section 134 face each other in the width direction of the component supply device 88 , and the light receiving section 134 is arranged on the outside of the side wall 136 . It is arranged on the outside of the side wall 138. Furthermore, the light emitting section 132 and the light receiving section 134 are arranged at the same height in the component supply device 88, and are arranged at a height of about 1/4 of the vertical dimension of the upper end and the lower end of the conveyor device 106. It is arranged. That is, the light projecting section 132 and the light receiving section 134 are arranged at a position close to the lower end of the conveyor device 106. As a result, the light emitted from the light projecting section 132 is received by the light receiving section 134 through the through holes provided on both side walls for passing light, but there is a gap between the light projecting section 132 and the light receiving section 134. If something exists, the light emitted from the light projecting section 132 is blocked by the object, and the detection sensor 130 detects that something exists between the light projecting section 132 and the light receiving section 134. is detected. With such a structure, the detection sensor 130 detects the remaining amount of components inside the component supply device 88. In other words, when the light receiving section 134 cannot receive the light irradiated from the light projecting section 132, the components are piled up inside the component supply device 88 to a higher position than the light projecting section 132 and the light receiving section 134. A large amount of parts is detected to be inside part feeder 88 . On the other hand, when the light receiving section 134 can receive the light emitted from the light projecting section 132, there are only components below the light projecting section 132 and the light receiving section 134 inside the component supply device 88, so the component supply device 88 It is detected that the remaining amount of parts inside 88 is low. In this way, the component supply device 88 is provided with the detection sensor 130 that detects the remaining amount of components.

Furthermore, a pair of side frames 140 are assembled to the base 96, as shown in FIG. The pair of side frames 140 are erected so as to face each other, parallel to each other, and extending in the Y direction. The distance between the pair of side frames 140 is made slightly larger than the dimension in the width direction of the component feeder 88. It is installed in a position that allows it to be attached and detached without using the device.

The component scattering device 90 includes a component support member 150 and a component support member moving device 152. The component support member 150 includes a stage 156 and a pair of side walls 158. The stage 156 has a generally elongated plate shape and is arranged so as to extend forward from below the component feeder 88 mounted between the pair of side frames 140. The upper surface of the stage 156 is generally horizontal, and is disposed with a slight clearance from the front end of the inclined plate 128 of the component feeder 88, as shown in FIG. Further, as shown in FIG. 4, the pair of side walls 158 are fixed in an erected state on both sides of the stage 156 in the longitudinal direction, and the upper ends of each side wall 158 are lower than the top surface of the stage 156. It extends upward.

Further, the component support member moving device 152 slides the component support member 150 in the Y direction by operating an air cylinder (see FIG. 11) 166. At this time, the component support member 150 moves between a stored state in which it is stored below the component feeder 88 (see FIG. 6) and an exposed state in which it is exposed from below the component feeder 88 (see FIG. 5). .

The parts return device 92 includes a parts storage container 180 and a container rocking device 181, as shown in FIG. The component storage container 180 is generally box-shaped and has an arcuate bottom surface. The component storage container 180 is swingably held at the front end of the stage 156 of the component support member 150, and is rocked by the operation of the container rocking device 181. At this time, the component storage container 180 swings between a storage position with the opening facing upward (see FIG. 7) and a returned position with the opening facing the top surface of the stage 156 of the component support member 150 (see FIG. 8). do.

(b) Imaging Device The imaging device 84 includes a camera 290 and a camera moving device 292, as shown in FIG. Camera moving device 292 includes a guide rail 296 and a slider 298. The guide rail 296 is fixed to the main body 80 above the component supply device 88 so as to extend in the width direction (X direction) of the bulk component supply device 32. The slider 298 is slidably attached to the guide rail 296, and is slid to any position by the operation of an electromagnetic motor (see FIG. 11) 299. A camera 290 is attached to the slider 298 so as to face downward. Note that the camera 290 is a two-dimensional camera and forms two-dimensional imaging data.

(c) Component Delivery Device The component delivery device 86 includes a component holding head moving device 300, a component holding head 302, and two shuttle devices 304, as shown in FIG.

The component holding head moving device 300 includes an X-direction moving device 310, a Y-direction moving device 312, and a Z-direction moving device 314. The Y-direction moving device 312 has a Y-slider 316 disposed above the component supply unit 82 so as to extend in the X-direction, and the Y-slider 316 is driven by an electromagnetic motor (see FIG. 11) 319. , move to any position in the Y direction. The X-direction moving device 310 has an X-slider 320 disposed on the side surface of the Y-slider 316, and the X-slider 320 can be moved to any position in the X-direction by driving an electromagnetic motor (see FIG. 11) 321. Moving. The Z direction moving device 314 has a Z slider 322 disposed on the side surface of the X slider 320, and the Z slider 322 can be moved to any position in the Z direction by driving an electromagnetic motor (see FIG. 11) 323. Moving.

The component holding head 302 includes a head main body 330, a suction nozzle 332, a nozzle rotation device 334, and a nozzle rotation device 335, as shown in FIG. The head main body 330 is integrally formed with the Z slider 322. The suction nozzle 332 holds the component and is detachably attached to the lower end of the holder 340. The holder 340 is bendable at the support shaft 344, and the holder 340 is bent 90 degrees upward by the operation of the nozzle turning device 334. As a result, the suction nozzle 332 attached to the lower end of the holder 340 rotates 90 degrees and is located at the rotating position. That is, the suction nozzle 332 rotates between the non-swivel position and the swiveling position by the operation of the nozzle swiveling device 334. Of course, it is also possible to position and stop at an angle between the non-turning position and the turning position. Further, the nozzle rotation device 335 rotates the suction nozzle 332 around its axis.

Each of the two shuttle devices 304 includes a component carrier 388 and a component carrier moving device 390, as shown in FIG. has been done. Five component receiving members 392 are attached to the component carrier 388 in a row in a horizontal direction, and a component is placed on each component receiving member 392.

Note that the bulk parts supply device 32 can supply various parts, and various parts receiving members 392 are prepared depending on the shape of the parts. Here, as an electronic circuit component supplied by the bulk component supply device 32, a component receiving member 392 corresponding to a lead component 410 having a lead will be described as shown in FIG. The lead component 410 includes a block-shaped component body 412 and two leads 414 protruding from the bottom surface of the component body 412.

Further, a component receiving recess 416 having a shape corresponding to the lead component 410 is formed in the component receiving member 392 . The component receiving recess 416 is a stepped recess, and is composed of a main body receiving recess 418 that opens on the top surface of the component receiving member 392, and a lead receiving recess 420 that opens on the bottom surface of the main body receiving recess 418. There is. Then, the lead component 410 is inserted into the component receiving recess 416 with the lead 414 facing downward. As a result, the lead component 410 is placed inside the component receiving recess 416 with the lead 414 inserted into the lead receiving recess 420 and the component body 412 being inserted into the main body receiving recess 418 .

Further, as shown in FIG. 3, the component carrier moving device 390 is a plate-shaped longitudinal member, and is disposed on the front side of the component supply unit 82 so as to extend in the front-rear direction. A component carrier 388 is disposed on the upper surface of the component carrier moving device 390 so as to be slidable in the front and rear directions, and is slid to any position in the front and rear directions by driving an electromagnetic motor (see FIG. 11) 430. Note that when the component carrier 388 slides in the direction approaching the component supply unit 82, it slides to a component receiving position located within the movement range of the component holding head 302 by the component holding head moving device 300. On the other hand, when the component carrier 388 slides away from the component supply unit 82, it slides to a component supply position located within the range of movement of the work heads 60, 62 by the work head moving device 64.

Further, as shown in FIG. 11, the control device 34 includes a general control device 450, a plurality of individual control devices (only one is shown in the figure) 452, and an image processing device 454. The overall control device 450 is mainly composed of a computer, and is connected to the base material conveyance and holding device 22, the component mounting device 24, the imaging device 26, the imaging device 28, the component supply device 30, and the bulk component supply device 32. ing. Thereby, the overall control device 450 centrally controls the base material transport and holding device 22, the component mounting device 24, the imaging device 26, the imaging device 28, the component supply device 30, and the bulk component supply device 32. The plurality of individual control devices 452 are mainly configured with a computer, and control the base material conveyance and holding device 22 , the component mounting device 24 , the imaging device 26 , the imaging device 28 , the component supply device 30 , and the bulk component supply device 32 . (Only the individual control device 452 corresponding to the bulk parts supply device 32 is shown in the figure).

The individual control device 452 of the bulk parts supply device 32 is connected to the component scattering device 90, the component return device 92, the camera moving device 292, the component holding head moving device 300, the component holding head 302, and the shuttle device 304. As a result, the individual control device 452 of the bulk parts supply device 32 controls the component scattering device 90, the component return device 92, the camera moving device 292, the component holding head moving device 300, the component holding head 302, and the shuttle device 304. Further, the image processing device 454 is connected to the imaging device 84 and processes imaging data captured by the imaging device 84. The image processing device 454 is connected to the individual control device 452 of the bulk parts supply device 32. Thereby, the individual control device 452 of the bulk parts supply device 32 acquires the image data captured by the image capturing device 84. Further, the individual control device 452 is also connected to the detection sensor 130 and acquires a detection value by the detection sensor 130. When the individual control device 452 obtains the detection value by the detection sensor 130, the individual control device 452 outputs the detection value to the overall control device 450. Thereby, the overall control device 450 displays an image based on the detected value on the monitor 460, the details of which will be explained later.

(B) Operation of component mounting machine
With the above-described configuration, the component mounting machine 10 performs a work of mounting components onto the circuit substrate 12 held by the substrate conveying and holding device 22. Specifically, the circuit board 12 is transported to a working position and is fixedly held at that position by the clamp device 52. Next, the imaging device 26 moves above the circuit board 12 and images the circuit board 12. Thereby, information regarding the error in the holding position of the circuit board 12 can be obtained. Further, the component supply device 30 or the bulk component supply device 32 supplies components at a predetermined supply position. Note that the supply of parts by the bulk parts supply device 32 will be explained in detail later. Then, one of the work heads 60 and 62 moves above the part supply position and holds the part by the suction nozzle 66. Subsequently, the work heads 60 and 62 holding the component move above the imaging device 28, and the component held by the suction nozzle 66 is imaged by the imaging device 28. This provides information regarding the error in the holding position of the component. Then, the work heads 60 and 62 holding the components move above the circuit board 12 and correct the errors in the holding position of the circuit board 12, the errors in the holding positions of the parts, etc. , mounted on the circuit board 12.

(C) Operation of the bulk parts supply device In the bulk parts supply device 32, the lead components 410 are inputted from the input port 97 of the component supply device 88 by the operator, and the input lead components 410 are transferred to the component supply unit 82, When the component delivery device 86 operates, the component is delivered while being placed on the component receiving member 392 of the component carrier 388 .

Specifically, the operator inputs the lead component 410 from the input port 97 on the top surface of the component supply device 88 . At this time, the component support member 150 is moved below the component supply device 88 by the operation of the component support member moving device 152, and is in a stored state (see FIG. 6). Note that when the component support member 150 is in the stored state, the component storage container 180 disposed at the front end of the component support member 150 is located in front of the component supply device 88, and the component storage container 180 is located in front of the component supply device 88, The storage container 180 is in a posture with its opening facing upward (accommodation posture).

The lead component 410 inputted from the input port 97 of the component supply device 88 falls onto the inclined plate 104 of the component supply device 88 and rolls down to the front lower end of the inclined plate 104 . At this time, the lead parts 410 that have rolled down to the lower end of the front side of the inclined plate 104 are piled up between the lower end of the front side of the inclined plate 104 and the lower end of the rear side of the conveyor device 106, as shown in FIG. A plurality of components are housed in a separate state inside the component supply device 88. Then, when the conveyor device 106 is operated, the conveyor belt 112 of the conveyor device 106 rotates counterclockwise in FIG. 12 . As a result, the lead parts 410 piled up between the inclined plate 104 and the conveyor belt 112 are conveyed obliquely upward by the conveyor belt 112.

Then, the lead component 410 conveyed by the conveyor belt 112 falls onto the inclined plate 126 from the upper end of the front side of the conveyor device 106. The lead component 410 that has fallen onto the inclined plate 126 rolls backward on the inclined plate 126 and falls onto the inclined plate 128. The lead component 410 that has fallen onto the inclined plate 128 rolls down toward the front and is discharged from the discharge port 98 on the front side of the component supply device 88.

Thereby, the lead component 410 discharged from the discharge port 98 of the component supply device 88 is accommodated inside the component storage container 180. Then, when a predetermined amount of lead components 410 are discharged from the component supply device 88, that is, when the conveyor device 106 operates a certain amount, the conveyor device 106 stops. Next, the component support member 150 is moved forward from the stored state by the operation of the component support member moving device 152.

Then, at the timing when the component support member 150 moves forward by a predetermined amount from the stored state, the container rocking device 181 of the component return device 92 is activated, and the component storage container 180 is rocked. As a result, the attitude of the component storage container 180 changes rapidly from an attitude with the opening facing upward (accommodating attitude) to an attitude with the opening facing the stage 156 (returning attitude). At this time, the lead component 410 housed in the component storage container 180 is vigorously ejected toward the stage 156. As a result, the lead components 410 are scattered from the component storage container 180 onto the stage 156.

Then, when the lead components 410 are scattered on the stage 156 from the component supply device 88, the camera 290 of the imaging device 84 moves above the stage 156 by the operation of the camera moving device 292, and images the lead components 410. do. As a result, information such as the position on the stage 156 and the posture of the lead components 410 is calculated for the plurality of lead components 410 scattered on the upper surface of the stage 156 based on the imaging data. Then, based on the calculated information regarding the position of the lead component 410, the component holding head 302 is moved above the lead component by the operation of the component holding head moving device 300, and the lead component 410 is sucked by the suction nozzle 332. Retained. That is, in the component supply unit 82, the stage 156 is the component supply position, and the components scattered on the stage 156 are supplied to the component holding head 302 at the component supply position. Note that when the lead component is suctioned and held by the suction nozzle 332, the suction nozzle 332 is located at a non-rotating position.

Next, after the lead component 410 is held by the suction nozzle 332, the component holding head 302 moves above the component carrier 388. At this time, the component carrier 388 is moved to the component receiving position by the operation of the component carrier moving device 390. Further, when the component holding head 302 moves above the component carrier 388, the suction nozzle 332 is rotated to the rotation position. Note that the suction nozzle 332 is rotated by the operation of the nozzle rotation device 335 so that the lead 414 of the lead component 410 held by the suction nozzle 332 in the rotating position is directed downward in the vertical direction.

When the component holding head 302 moves above the component carrier 388, the lead component 410 with the lead 414 facing vertically downward is inserted into the component receiving recess 416 of the component receiving member 392. Thereby, the lead component 410 is placed on the component receiving member 392 with the lead 414 facing downward in the vertical direction, as shown in FIG. Note that the component receiving member 392 on which the lead component 410 is placed corresponds to the stage 156 from which the lead component 410 is supplied. That is, a component picked up from above a predetermined stage 156 is placed on the component receiving member 392 corresponding to that stage 156.

Then, when the lead component 410 is placed on the component receiving member 392, the component carrier 388 is moved to the component supply position by the operation of the component carrier moving device 390. Since the component carrier 388 that has moved to the component supply position is located within the movement range of the work heads 60 and 62, the bulk component supply device 32 supplies the lead component 410 to the component mounter 10 at this position. In this manner, the bulk component supply device 32 supplies the lead components 410 with the leads 414 facing downward and the top surface opposite the bottom surface to which the leads 414 are connected facing upward. Therefore, the suction nozzles 66 of the working heads 60 and 62 can appropriately hold the lead component 410.

In this manner, in the bulk parts supply device 32, the parts housed inside the parts supply device 88 in the parts supply unit 82 are scattered on the stage 156. The components scattered on the stage 156 are held by the component holding head 302 and placed on the component receiving member 392, thereby being supplied to the work heads 60, 62 of the component mounting machine 10. At this time, the overall control device 450 calculates the number of parts remaining in each parts supply unit 82 installed in the bulk parts supply device 32, and manages whether the number of parts remaining is an appropriate amount. ing. Specifically, when parts are stored in the component supply device 88 of each component supply unit 82, the number of parts in a lot unit of the components stored in the component supply device 88 is input to the overall control device 450.

Specifically, for example, the parts D scheduled to be supplied by the parts supply unit A are packaged with 3000 parts per bag. For this reason, when the worker puts the part D into the empty parts feeder 88 of the parts supply unit A, the worker must load the part supply unit A, the part D, and the lot of parts D packaged in one bag. The number of parts in the unit (3000 pieces) is input into the overall control device 450. Further, for example, the parts E scheduled to be supplied by the parts supply unit B are packaged with 5000 parts per bag. For this reason, when the worker puts the component E into the empty component feeder 88 of the component supply unit B, he/she needs to load the component supply unit B, the component E, and the lot of the component E packaged in one bag. The number of parts per unit (5000 pieces) is input into the overall control device 450. As a result, as shown in FIG. 13, the monitor 460 of the central control device 450 shows that the component supply unit A supplies the component D, and that the number of remaining components of the component D on hand is 3000. Unit B supplies part E, and it is displayed that the number of remaining parts of part E on hand is 5000 pieces. Note that a bar code is attached to the bag in which the parts are packaged, in which information indicating the type of the part and information indicating the number of parts packaged in one bag are encoded. Further, each component supply unit is also affixed with a barcode in which information indicating each component supply unit is encoded. Therefore, by reading the barcode affixed to the bag and the barcode affixed to each component supply unit using a barcode reader (not shown), the operator can determine the type of component supply unit and its parts. The type of parts to be fed into a supply unit and the number of parts in a lot that are packaged in one bag as parts to be fed into the parts supply unit are input into the integrated control device 450 in a linked state. Ru.

In addition, the overall control device 450 controls not only the component supply unit 82 of the bulk component supply device 32 but also other types of component supply devices, such as tape feeders, stick feeders, tray type component supply devices 78, etc. of the component supply device 30. , it also manages the remaining numbers of different types of parts supplied by other types of parts supply devices. For this reason, for example, among the plurality of parts A supplied by the tape feeder, 2000 parts are taped to a carrier tape as tape parts. Therefore, when setting part A of the tape-formed parts to the empty tape feeder, the operator must set the tape feeder, part A indicating the type of part supplied by the tape feeder, and the tape feeder. The number of parts (2,000 pieces) in each lot included in the tape-formed parts of part A to be set is input in association with the overall control device 450. Further, for example, among the plurality of parts B, 200 parts are housed in a stick attached to the stick feeder. Therefore, when setting a stick containing part B in the stick feeder, the operator must set the stick feeder, the part B indicating the type of part supplied by the stick feeder, and the stick feeder that is attached to the stick feeder. The number of parts per lot (200 pieces) stored in the stick of part B to be processed is input in association with the overall control device 450. Further, for example, 100 components C supplied by the tray type component supply device 78 are placed on the tray 1 that supplies the components C among a plurality of trays. Therefore, when setting the tray 1 on which the component C is placed on the tray-type component supply device 78, the operator sets the tray 1 on which the component C is placed, which the tray-type component supply device 78 has, and the tray 1 on which the component C is placed. The component C indicating the type of component placed on the tray 1 and the number of parts per lot (100 pieces) of the component C placed on the tray 1 are linked and input to the central control device 450. As a result, the monitor 460 of the central control device 450 shows that the tape feeder is supplying part A and the remaining number of parts A is 2000, and that the stick feeder is supplying part B and that the number of parts A remaining is 2000. The remaining number is 200, and the tray 1 on which component C is placed among the plurality of trays included in the tray type component supply device 78 supplies component C, and the remaining number of component C is 100. This will be displayed. Note that when the type of parts, the number of parts per lot, etc. of each of the tape feeder, stick feeder, and tray-type parts supply device 78 are input to the integrated control device 450, the information of each part supply unit 82 is inputted to the integrated control device 450. Various information is input to the overall control device 450 by reading the barcodes attached to the component supply devices and the packages of components supplied by each component supply device using a barcode reader.

When mounting work is being performed in the component mounting machine 10, components are supplied from the component supply unit 82, the tape feeder, the tray 1 on which the component C provided in the tray-type component supply device 78 is placed, etc. , the number of components supplied to the component mounting machine is subtracted from the remaining number of components managed by the overall control device 450. In other words, for example, when a predetermined number of circuit substrates are produced by the mounting work of the component mounting machine, the tape feeder, the stick feeder, the tray 1 on which the component C provided in the tray-type component supply device 78 is mounted, and the component supply When 1,900, 55, 12, 1,950, and 2,500 components are supplied from unit A and component supply unit B to the component mounting machine 10 and consumed in the production of circuit substrates, the information is used for integrated control. It is calculated by the device 450. Based on this calculation result, as shown in FIG. 14, the monitor 460 displays the tape feeder, the stick feeder, the tray 1 on which the component C of the tray type component supply device 78 is placed, the component supply unit A, and the component supply unit. The remaining numbers of parts in units of lots stored in the central control device in association with B are displayed as 100, 145, 88, 1050, and 2500. Thereby, by monitoring the monitor 460, the operator can recognize the number of parts remaining in each lot linked to each parts supply device.

Further, in the overall control device 450, a threshold value for the number of remaining parts in a lot unit linked to each component supply device is set, and when the number of remaining parts becomes less than the threshold value, an error notification is displayed. Note that the threshold value is determined based on the number of components for which there is a risk that the component mounter 10 may run out of components during the mounting work on the circuit board in each component supply device, and the time required to supply components to the component supply device. It is set based on etc. Specifically, for example, if "100" is set as the threshold for the remaining number of taped components set in the tape feeder, the tape feeder managed by the central control device 450 When the remaining number of taped parts becomes less than the threshold value (100), the status of the tape feeder is changed to "replenishment required", and the display field of the tape feeder flashes in red to alert the operator. A message will be displayed to remind you. In other words, if the number of remaining components of the tape feeder managed by the central control device 450 is below the threshold, there is a risk that the component mounter will run out of components during the mounting work on the circuit board in the tape feeder. Therefore, the overall control device determines that the remaining number of taped parts set in the tape feeder is not an appropriate number, and issues a notification to the operator to alert them.

On the other hand, if the number of parts remaining in each lot linked to each component supply device managed by the central control device 450 is greater than the threshold, the status of the component supply device is as follows: Since it is determined that the mounting machine 10 is in an "OK" state where there is no risk of parts running out during the mounting work on the circuit board 12, the central control device causes the display column of the tape feeder to blink. The normal display is maintained without any problems. In other words, when the number of remaining parts of the tape feeder managed by the central control device 450 is greater than the threshold, the central control device 450 eliminates the possibility that parts will run out due to production of the circuit base material 12. , it is determined that the remaining number of parts provided in the tape feeder is an appropriate amount, and no notification is made to alert the operator. As a result, by monitoring the monitor 460, the operator can recognize a component supply device that has a small number of remaining components in relation to the production speed of circuit substrates, and therefore, the worker can supply components to the recognized component supply device. By performing the supply work, it is possible to prevent the component mounter 10 from stopping due to running out of components.

However, the tape feeder, stick feeder, or tray-type component supply device 78 has a tray in which all the components of the number of parts in a lot linked to each component supply device can be set in each component supply device. However, in the case of a parts supply device of the type of parts supply unit 82, it may not be possible to set all the parts in a lot unit. That is, for example, the tape feeder can set taped parts in which 2000 parts A are taped as a unit of 1 lot, and the stick feeder can accommodate 200 parts B as a unit of 1 lot. The tray 1 included in the tray type component supply device 78 can hold 100 components C as a unit of one lot.

On the other hand, the parts supply device 88 of the parts supply unit A cannot accommodate all of the 3000 parts D packaged in a lot unit linked to the parts supply unit A, that is, one bag. , only 2000 parts D can be accommodated at maximum. Therefore, for example, when 1,950 components D are supplied to the component mounting machine 10 from a state where 2,000 components D are stored in the component supplyer 88 of component supply unit A, the components supply of component supply unit A is This means that only 50 parts D remain inside the container 88. However, in the central control device 450, the number of parts D per lot, which is 3000, which is stored and linked to the component supply unit A, is input to the central control device 450 and stored when the component D is input. Therefore, when 1950 parts D are supplied from the component supply unit A to the component mounter 10 during the production of circuit substrates, the overall control device 450 subtracts 1950 parts from 3000 parts, and The remaining number of parts D included in A is calculated to be 1050 pieces. Therefore, the monitor 460 also displays that the remaining number of parts D linked to the parts supply unit A is 1050 pieces. In such a case, even though the threshold value for the number of remaining components at which there is a risk that components will run out in component supply unit A during the component mounting machine's mounting work on the circuit board material is originally "50", First, the status of the component supply unit A remains "OK" as shown in FIG. 14, and the display column of the tape feeder does not flash red to alert the operator. Furthermore, since the remaining number of parts D is displayed on the monitor 460 as 1050 pieces, even if the operator checks the remaining number of parts D that the parts supply unit A has on the monitor 460, the parts supply unit A is You will not even notice that you are in a situation where you need to supply parts.

In view of this, in the component supply unit 82, the remaining amount of components accommodated in the component supply device 88 is detected by the detection sensor 130, and the detection value detected by the detection sensor 130 is used for the overall control. It is output to device 450. Based on the acquired detection value, the central control device 450 changes the status display of the component supply unit 82 from "OK" to "Required" even though the calculated number of remaining components provided by the component supply unit is 1050. "Replenishment" and make the display column of the relevant parts supply unit flash in red. Specifically, as described above, in the component supply device 88 of the component supply unit 82, a detection sensor 130 for detecting the remaining amount of components is disposed above the lower end of the conveyor device 106. As shown in FIG. 12, in the parts supply device 88, there is a gap between a conveyor device 106 that is arranged in an inclined state facing the rear, and an inclined plate 104 arranged in an inclined state that faces the front. A plurality of parts fed into the parts supply device 88 are stored in a pile. At this time, if a large number of parts are loaded into the parts feeder 88, the plurality of parts piled up between the conveyor device 106 and the inclined plate 104 will be located above the detection sensor 130. Therefore, the light projected from the light projecting section 132 is blocked by the plurality of parts piled up, and the light receiving section 134 cannot receive the light. As a result, the central control device stores a large number of components in the component supply unit 88 of the component supply unit whose light receiving unit 134 does not receive light, to the extent that the component supply device 88 of the component supply unit whose light receiving unit 134 does not receive light will not run out of components to be supplied to the component mounter in the near future. It is determined that the state is

On the other hand, as the component supply unit supplies components to the component mounting machine, the number of components accommodated in the component supply device 88 provided in the component supply unit decreases, and as shown in FIG. When the number of parts piled up between the board 104 and the plate 104 is less than the position where the detection sensor 130 is installed, the light emitted from the light projecting section 132 is emitted by the fewer parts piled up. It becomes unobstructed. That is, when the number of components accommodated in the component supply device 88 is small, the light receiving section 134 receives the light projected from the light projecting section 132. Thereby, the overall control device determines that the number of components accommodated in the component supply device 88 of the component supply unit whose light receiving section 134 receives light is decreasing.

Therefore, in the component supply unit 82, the detection sensor 130 detects the components accommodated in the component supply device at the timing when the components are supplied from the component supply device 88 to the stage 156, that is, at the timing when the conveyor device 106 operates. be exposed. Note that at the timing when parts are supplied from the parts supply device 88, that is, at the timing when the conveyor device 106 operates, the components stored in the components supply device 88 are moved inside the component supply device 88 as the conveyor device 106 operates. Since the component moves in the component supply device, the timing at which the component is detected is also the timing at which the component in the component supply device moves. Furthermore, the timing at which components are supplied from the component supply device 88 to the stage is also the timing at which the number of components in the component supply device decreases, since components are discharged from the inside of the component supply device 88 to the stage.

Detection of components in the component supply device by the detection sensor 130, which is performed at the timing when components are supplied from the component supply device 88, is continuously performed for a predetermined period of time, for example, 200 msec. In other words, from the time when the conveyor device 106 is operated to supply the parts accommodated in the component feeder provided in the component supply unit, the detection sensor 130 continuously detects the components accommodated in the component feeder for a predetermined period of time. detection is performed. When detecting a plurality of parts piled up above the installation position of the detection sensor 130 by continuous detection by the detection sensor for a predetermined period of time, the light-receiving part passes through the gap between the piled-up parts. 134 may receive light. In other words, when the parts are piled up above the installation position of the detection sensor 130, when the conveyor device 106 is operating, the plurality of parts piled up between the conveyor device 106 and the inclined plate 104 are Because of the movement, the light emitted from the light emitting part 132 toward the light receiving part 134, which was blocked by the parts before the conveyor device was activated, is instantaneously blocked by the parts piled up as the conveyor moves. In some cases, gaps between parts caused by changes in shape may be sewn to communicate with each other. In such a case, even though the parts are piled up above the installation position of the detection sensor 130, the light receiving part 134 receives the light projected from the light projecting part 132, so the parts supply is delayed. There is a possibility that the quantity of parts piled up above the position in the container 88 where the detection sensor is disposed may be erroneously detected as the quantity below the position where the detection sensor is disposed.

Therefore, after the conveyor device 106 is activated, the detection sensor 130 continuously performs detection for a predetermined period of time, so that the light emitted from the light projector 132 is received through the gaps between the plurality of parts piled up. Even if the parts 134 are momentarily communicated with, it is rare that gaps between the plurality of parts continue to exist for a predetermined period of time due to the operation of the conveyor device. At some point, the light projected by the light projecting section 132 is blocked by one of the parts in the pile. In this way, after the conveyor device 106 is activated, the detection sensor 130 continuously detects a plurality of parts stored in a pile in the component supply device for a predetermined period of time, so that the parts supply device can be stored in the component supply device. It is possible to appropriately detect parts in which the parts are piled up above the arrangement position of the detection sensor 130, which is housed in a heaped state above the arrangement position of the arranged detection sensor.

However, even though there are parts that are piled up above the position of the detection sensor 130 installed in the parts supply device, by supplying those parts to the stage, the light emitting part 132 does not irradiate the parts. The light receiving unit 134 may continue to receive the light for a predetermined period of time. In other words, if the detection sensor 130 continuously detects components for a predetermined period of time, there is a possibility that the detection sensor 130 disposed in the component supply device may erroneously detect the amount of components accommodated in the component supply device. There is. Therefore, detection by the detection sensor 130 is performed multiple times, for example, three times, during a predetermined period of time. For example, for a predetermined period of time from the timing at which the conveyor device 106 operates to supply the components accommodated in the component feeder, the first detection of the components accommodated in the component feeder is executed by the detection sensor 130. Next, for a predetermined period of time from the timing when the conveyor belt 112 is moved in the circular direction by a predetermined distance to such an extent that the components stored in the component feeder are not supplied by the operation of the conveyor device 106, the detection sensor 130 A second detection of the accommodated part is performed. Furthermore, the detection sensor 130 detects that the conveyor belt 112 is moved in the circular direction by a predetermined distance to such an extent that the components stored in the component feeder are not supplied by the operation of the conveyor device 106. A third detection of the detected part is performed. In this way, by detecting the number of parts accommodated in the component supply device by the detection sensor 130 multiple times, it is possible to ensure that the detection sensor 130 does not erroneously detect the number of components accommodated in the component supply device. It can be prevented.

When the detection sensor 130 performs multiple detections in this manner, the individual control device 452 of the component supply unit 82 outputs the detection results for the multiple times to the overall control device 450. Then, when all of the detection results for the plurality of times indicate that the number of parts remaining is small, that is, the integrated control device 450 indicates that the light receiving section 134 is receiving the light emitted from the light projecting section. In this case, the central control device changes the status of the parts supply unit 82 from "OK" to "replenishment required" and also notifies the operator that the quantity of parts stored in the parts supply unit is small. An announcement will be made to call for attention. For example, all of the detection results detected by the detection sensor 130 multiple times during a predetermined period of time output from the component supply unit A indicate that the remaining number of components accommodated in the component supply device is small. When the state is detected, the central control device 450 that receives the signal changes the status of the parts supply unit A from "OK" to "replenishment required" and changes the status of the parts supply unit A to "replenishment required" as shown in FIG. 16. Make the display column A flash red. In other words, if the overall control device determines that the number of remaining components accommodated in the component supply unit A is small based on the detection results of the detection sensor 130 multiple times, the component mounting machine performs the mounting work on the circuit substrate. Since there is a risk that parts supply unit A may run out of parts, it is determined that the remaining amount of parts accommodated in parts supply unit A is not an appropriate amount, and a notification is issued to alert the operator. It will be done. By this notification, the operator recognizes that the number of parts remaining in the parts supply unit A is decreasing, and by replenishing the parts D to the parts supply unit A, the notification is canceled. In other words, it is possible to prevent the component mounter 10 from stopping due to running out of components supplied from the component supply unit A.

In addition, when the worker replenishes parts to the parts supply device, he or she must check the barcode on the package that indicates the lot unit of the parts to be supplied and the bar code on the part supply device that supplied the parts. When the codes are successively read by a barcode reader, each piece of information read is input to the general control device 450. By inputting these information to the overall control device, the overall control device recognizes that the part D linked to the parts supply unit A has been supplied, and determines that the appropriate part has been supplied. Then, the display indicating the status of the parts supply unit A is changed from "replenishment required" to "OK", and the red flashing in the display column of the parts supply unit A is canceled.

Incidentally, the component mounting machine 10 is an example of a component management system. The component supply unit 82 is an example of a component supply device. The parts supply device 88 is an example of a storage. Detection sensor 130 is an example of a sensor. The overall control device 450 is an example of a management device.

It should be noted that the present invention is not limited to the above embodiments, but can be implemented in various forms with various changes and improvements based on the knowledge of those skilled in the art. Specifically, for example, in the above embodiment, the amount of parts is detected by the detection sensor 130, but the presence or absence of parts, that is, the presence or absence of parts may also be detected.

Further, in the embodiment described above, the detection sensor 130 constituted by the light projecting section 132 and the light receiving section 134 is a so-called transmission type optical sensor, but other types of sensors, such as a limited reflection type sensor, are used. Optical sensors may also be employed. Furthermore, in the embodiment described above, one pair of detection sensors 130 is disposed in the component supply device 88, but a plurality of sets of detection sensors may be disposed in the component supply device 88. When multiple sets of detection sensors are disposed in the component supply device 88 in this way, the remaining amount of components accommodated in the component container is detected based on all detection results of the multiple sets of detection sensors. Alternatively, the remaining amount of components accommodated in the component storage container may be detected based on the detection value result of an arbitrary set of detection sensors among the plurality of sets of detection sensors. Further, in the above embodiment, one pair of detection sensors is provided for one component supply device 88, but one pair is provided for a plurality of component supply devices 88, that is, a plurality of component containers. A pair of detection sensors may be provided. For example, a plurality of component feeders 88 can be attached and detached in a line so that through holes through which light from detection sensors for detecting components provided on both side walls of each component container are passed are lined up in a line. By positioning and arranging them, it is possible to simultaneously detect the remaining amount of components accommodated in the component storage containers of a plurality of component supply devices 88 using a pair of detection sensors.

Further, in the above embodiment, as a component supply device for supplying components, the components stored in the component supply device 88 in a loose state are scattered on the stage 156, and the scattered components are supplied to the component mounting machine. Although the component supply unit 82 is a component supply device, this embodiment can be applied to various types of component supply devices as long as they are equipped with a component storage that stores components in bulk. For example, a parts supply device, a so-called bulk feeder, etc., sends the parts in an aligned state from a parts storage warehouse that stores parts in a bulk state to a supply position, and supplies the parts in a predetermined posture at the supply position. This aspect can also be adopted for the supply device. Further, the component storage provided in a typical bulk feeder is made of transparent hardened plastic that transmits light and magnetic force. Therefore, there is no need for through holes in both side walls of the component container for detecting components with the detection sensor. Further, as in the above-mentioned modification, the components accommodated in a plurality of component containers can be detected by one component detection sensor or one set of component detection sensors. Further, the position of the detection sensor included in the component supply unit can be adjusted to a position deemed appropriate depending on the type and shape of the component.

Further, in the above embodiment, the components scattered on the stage 156 are supplied and held by the component holding head 302 of the bulk component supply device, but they may be supplied to the work head of the component mounting machine. Furthermore, the present embodiment may be applied to component supply devices that supply components to various types of robots, such as multi-jointed robots, regardless of the component holding head or the work head.

Furthermore, in the embodiment described above, the detection sensor 130 detects the component housed in the component supply device at the timing when the component is supplied from the component supply device 88 to the stage 156, but the detection may be performed at various timings. May be done. For example, the timing when the supply of components from the component feeder 88 to the stage is completed, the timing when a predetermined time has elapsed since the timing when the detection sensor previously detected the component, or the timing when the component scattered on the stage 156 is Detection may be performed at various timings, such as the timing held by the work head of the mounting machine, or the timing determined and inputted by the operator to the control device or integrated control device included in the component supply device.

Furthermore, in the above embodiment, lead components are used as the components supplied by the component supply device, but solar cell components, power module components, electronic circuit components without leads, etc. are also used. It's okay.

Further, in the above embodiment, the number of parts in each lot as on-hand parts is packaged into one package, but the form of the package does not have to be limited to a bag. Various types of parts containers that are easy for workers to carry and manage may be used. Further, parts of one lot may be divided into a plurality of parts and packaged.

Further, the barcode used in the above embodiment may be a readable/writable RFID.

In addition, in the above embodiment, since the component mounting machine mounts the components on the circuit substrate based on the component mounting program stored in the overall control device, the overall control device mounts the components on the circuit substrate according to the consumption timing. The remaining number of components accommodated by the component supply device that supplied the components mounted in the component supply device or the component supply device included in the component supply device is calculated and displayed. On the other hand, the calculation of the remaining number of components does not need to be based on the component mounting program, and may be calculated by, for example, timing the operation of a component supply device, a component feeder, or a work head of a component mounting machine.

10: Component mounting machine (component management system) 82: Component supply unit (component supply device)
88: Parts supply device (storage) 130: Detection sensor (sensor) 450: General control device (management device)

Claims (2)

It has a storage that stores a plurality of parts in a loose state, and a sensor that detects the remaining amount of the parts stored in the storage, and supplies the plurality of parts stored in the storage to a supply position. A parts supply device ,
The sensor is
Detecting the remaining amount of the parts stored in the storage warehouse a plurality of times during a predetermined period of time from the timing when the parts stored in the storage storage are supplied to the supply position , and based on the results of the multiple detections. and a parts supply device that detects whether the remaining amount of parts stored in the storage is an appropriate amount . It has a storage that stores a plurality of parts in a loose state, and a sensor that detects the remaining amount of the parts stored in the storage, and supplies the plurality of parts stored in the storage to a supply position. a parts supply device,
a management device that manages the remaining amount of parts stored in the storage based on the detection result of the sensor;
The sensor is
Detecting the remaining amount of the parts stored in the storage warehouse multiple times at a predetermined timing during a predetermined time from the timing when the parts stored in the storage storage are supplied to the supply position ,
The management device includes:
A parts management system that manages whether the remaining amount of parts stored in the storage warehouse is an appropriate amount.

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