WO2016035190A1 - 基板搬送装置および搬送ベルト検査方法 - Google Patents
基板搬送装置および搬送ベルト検査方法 Download PDFInfo
- Publication number
- WO2016035190A1 WO2016035190A1 PCT/JP2014/073357 JP2014073357W WO2016035190A1 WO 2016035190 A1 WO2016035190 A1 WO 2016035190A1 JP 2014073357 W JP2014073357 W JP 2014073357W WO 2016035190 A1 WO2016035190 A1 WO 2016035190A1
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- WIPO (PCT)
- Prior art keywords
- substrate
- conveyor belt
- belt
- sensor
- electronic component
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67259—Position monitoring, e.g. misposition detection or presence detection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67288—Monitoring of warpage, curvature, damage, defects or the like
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
- H01L21/67706—Mechanical details, e.g. roller, belt
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/0061—Tools for holding the circuit boards during processing; handling transport of printed circuit boards
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/08—Monitoring manufacture of assemblages
- H05K13/081—Integration of optical monitoring devices in assembly lines; Processes using optical monitoring devices specially adapted for controlling devices or machines in assembly lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0208—Control or detection relating to the transported articles
- B65G2203/0233—Position of the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
- B65G2203/0275—Damage on the load carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
- B65G2203/044—Optical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2811/00—Indexing codes relating to common features for more than one conveyor kind or type
- B65G2811/06—Devices controlling the relative position of articles
- B65G2811/0673—Control of conveying operations
Definitions
- the present invention relates to a substrate conveyance device such as an electronic component mounting machine or a printing machine, and a conveyance belt inspection method for inspecting a conveyance belt for conveying a substrate.
- the electronic component mounting machine includes a conveyor belt and a substrate sensor.
- a substrate conveyance path is set on the conveyance belt.
- the substrate sensor detects the presence or absence of a substrate at a predetermined position in the transport path.
- the substrate sensor includes a projector and a light receiver. The substrate sensor detects the substrate based on the fact that light from the projector to the light receiver is blocked.
- the transport belt when the transport belt is deteriorated, the transport belt may be partially broken. In this case, the rupture portion rises from the surface of the conveyor belt. For this reason, a tearing part will block
- Patent Document 1 discloses an image forming apparatus capable of detecting contamination and breakage of a conveyance belt.
- a state detection sensor is disposed on the carriage of the image forming apparatus.
- the carriage is movable on the upper side of the conveyor belt along the extending direction of the conveyor belt.
- the state detection sensor is scanned on the upper side of the stopped conveyance belt. For this reason, only the upper half of the conveyor belt can be inspected at a time. Therefore, when inspecting the entire length of the conveyor belt, the upper half and the lower half of the conveyor belt are switched by first scanning the state detection sensor over the upper half of the conveyor belt and then rotating the conveyor belt halfway. The state detection sensor needs to be scanned again with respect to the upper half (the old lower half) of the conveyor belt. Such an operation is complicated.
- An advantage of some aspects of the invention is that it provides a substrate transport apparatus and a transport belt inspection method that can easily detect an abnormality in a transport belt.
- the substrate transport apparatus of the present invention detects an endless annular transport belt in which a transport path for transporting a substrate is set, and the presence or absence of the substrate at a predetermined detection position on the transport path. And a control device that rotates the transport belt when the transport path is not transporting the substrate and determines abnormality of the transport belt based on a detection result of the substrate sensor. It is characterized by that.
- abnormal locations on the conveyor belt include whiskers (those in which the surface material and core of the conveyor belt are torn), undulations (in which the conveyor belt is partially curved), and bumps (in which the conveyor belt is partially raised) Etc.). That is, the abnormal part refers to a part where at least a part of the conveyor belt protrudes radially outward, that is, an arbitrary part of the conveyor belt that can be detected by the substrate sensor.
- the substrate transport apparatus of the present invention it is possible to detect abnormality of the transport belt by diverting a substrate sensor that is originally used for substrate detection. Further, it is not necessary to move the substrate sensor when inspecting the conveyor belt. For this reason, it is possible to easily detect an abnormality in the conveyor belt. Therefore, it is possible to suppress the substrate sensor from misidentifying the abnormal portion of the transport belt and the substrate during substrate transport.
- the substrate transfer apparatus of the present invention it is possible to inspect the transfer belt using the idle time of substrate transfer. For this reason, the downtime accompanying the inspection of the conveyor belt is unlikely to occur during substrate production.
- the detection position is set only at one position on the transport path, and the control device is configured to transfer the transport belt when the transport path is not transporting the substrate. It is better to have a configuration that rotates at least once. According to this configuration, the entire length of the transport belt can be inspected by one detection position, that is, a single substrate sensor. For this reason, the number of substrate sensors can be reduced.
- a plurality of the detection positions are set in the conveyance path, the total length of the conveyance belt is L0, and the detection position at the upstream end in the conveyance direction among the plurality of detection positions.
- the control device moves the transport belt to L0-L1 when the transport path is not transporting the substrate. It is better to have a configuration to rotate. According to this configuration, the entire length of the conveyor belt can be inspected by a plurality of detection positions, that is, a plurality of substrate sensors. For this reason, the time required for the inspection of the conveyor belt can be shortened.
- a pair of the transport belts are juxtaposed in a direction orthogonal to the extending direction of the transport path, and the substrate sensor is shared by the pair of transport belts. It is better to have a configuration. According to this configuration, the pair of conveyor belts can be inspected simultaneously by the common substrate sensor. For this reason, the time required for the inspection of the conveyor belt can be shortened as compared with the case where the inspection is individually performed on the conveyor belt.
- the conveyance belt inspection method of the present invention rotates the conveyance belt when the conveyance path set for the endless annular conveyance belt is not conveying the substrate, thereby conveying the conveyance belt. It has a detection step for detecting the presence or absence of a passing object at a predetermined detection position on the road, and a discrimination step for discriminating abnormality of the transport belt based on the detection result.
- an abnormality of the conveyor belt can be easily detected.
- the transport belt can be inspected by using the substrate transport idle time.
- the present invention it is possible to provide a substrate transport apparatus and a transport belt inspection method that can easily detect abnormality of the transport belt.
- FIG. 1 is a block diagram of a production line in which an electronic component mounting machine according to an embodiment of the present invention is arranged.
- 2 is a top view of a portion where two electronic component mounting machines are connected in the production line of FIG.
- FIG. 3 is a front view of the conveyance belt on the rear side of the electronic component mounting machine.
- FIG. 4 is a flowchart of the conveyance belt inspection method according to the embodiment of the present invention.
- FIG. 5 is a front view of the conveyance belt on the rear side of the electronic component mounting machine in the conveyance belt inspection method.
- FIG. 6 is a front view of the conveyance belt on the rear side of the electronic component mounting machine according to another embodiment.
- the board conveyance device of the present invention is embodied as an electronic component mounting machine.
- FIG. 1 shows a block diagram of a production line in which the electronic component mounting machine of this embodiment is arranged.
- the production line 9 includes a screen printing machine 91, a printing inspection machine 92, two electronic component mounting machines 1, from the left side (upstream side) to the right side (downstream side), A substrate visual inspection machine 93 and a reflow furnace 94 are arranged in a line.
- the electronic component mounting machine 1 on the right side is included in the concept of the “board transfer device” of the present invention.
- the production line 9 is centrally managed by the host computer 90.
- the screen printer 91 prints solder on the land portion of the wiring pattern on the board (not shown).
- the print inspection machine 92 inspects the printing state of the solder.
- the two electronic component mounters 1 mount the electronic components on the board in stages according to the assignment of each electronic component mounter 1.
- the board appearance inspection machine 93 inspects the mounting state of the electronic component.
- the reflow furnace 94 fixes the electronic component to the land portion of the wiring pattern with solder.
- FIG. 2 shows a top view of a portion where two electronic component mounting machines are connected in the production line of FIG.
- the configuration of the two electronic component mounting machines 1 is the same.
- the electronic component mounting machine 1 includes a transport conveyor 2, a slider 3, a component supply device 4, a base 5, a control device 6, and a display device 7. Yes.
- the component supply device 4 is disposed on the front side of the base 5.
- the slider 3 is disposed on the upper side of the base 5.
- the slider 3 is movable in the left-right direction with respect to the base 5.
- the slider 3 includes a suction nozzle 30.
- the suction nozzle 30 is movable in the front-rear direction with respect to the slider 3.
- the transport conveyor 2 includes a pair of front and rear support members 20F and 20R, a pair of front and rear transport belts 21F and 21R, a transport motor 21M, a carry-in sensor 22, and a carry-out sensor 23.
- the carry-out sensor 23 is included in the concept of “substrate sensor” of the present invention.
- Each of the pair of front and rear support members 20F and 20R extends over the entire length of the base 5 in the left-right direction.
- the pair of front and rear conveyor belts 21 ⁇ / b> F and 21 ⁇ / b> R each extend over the entire length of the base 5 in the left-right direction.
- the front conveyor belt 21F is disposed on the front support member 20F.
- the rear conveyor belt 21R is disposed on the rear support member 20R.
- the conveyor belts 21F and 21R are opposed to each other in the front-rear direction.
- a substrate B is installed between the conveyor belts 21F and 21R.
- the conveyor belts 21F and 21R are driven by a conveyor motor 21M.
- Fig. 3 shows a front view of the conveyor belt on the rear side of the electronic component mounting machine.
- the conveyor belt 21R is wound between two pulleys 21P at both left and right ends.
- the conveyor belt 21R has an oval shape extending in the left-right direction.
- a conveyance path A is set on the upper surface of the conveyance belt 21R. As the transport belts 21F and 21R rotate, the substrate B is transported along the transport path A from the left side to the right side.
- the unloading sensor 23 is arranged at the right end (downstream end) of the transport path A. That is, the detection position of the carry-out sensor 23 is set at the right end of the conveyance path A.
- the carry-out sensor 23 is a transmissive photoelectric sensor.
- the carry-out sensor 23 includes a projector 230 and a light receiver 231. As shown by the dotted line in FIG. 3, when the right end of the substrate B reaches between the light projector 230 and the light receiver 231 (that is, the detection position), the light irradiated from the light projector 230 to the light receiver 231 (see FIG. 2) Blocked. Based on the light shielding, the carry-out sensor 23 detects “the substrate B is present at the detection position”.
- the carry-in sensor 22 is disposed at the left end (upstream end) of the transport path A. That is, the detection position of the carry-in sensor 22 is set at the left end of the transport path A.
- the configuration of the carry-in sensor 22 is the same as the configuration of the carry-out sensor 23.
- the substrate B is conveyed from the left side to the right side through the production line 9 by connecting the conveyance conveyors 2 of the respective apparatuses.
- the control device 6 includes a calculation unit 60, a storage unit 61, and an input / output interface 62.
- the calculation unit is a CPU (Central Processing Unit).
- the storage unit 61 includes a ROM (Read Only Memory) and a RAM (Random Access Memory).
- the input / output interface 62 includes a carry-in sensor 22, a carry-out sensor 23, a carry motor 21M, a display device 7, a host computer 90, a screen printing machine 91, a print inspection machine 92, another electronic component mounting machine 1, and a board appearance inspection machine. 93, electrically connected to a reflow furnace 94.
- the conveyance belt inspection method is executed by the right electronic component mounting machine 1 out of the two electronic component mounting machines 1. Moreover, the carry-out sensor 23 is used for the conveyance belt inspection method. Moreover, in the conveyance belt inspection method, the control device 6 executes the inspection of the pair of front and rear conveyance belts 21F and 21R at the same time.
- the conveyor belts 21F and 21R may be partially broken. That is, there is a case where a beard (abnormal part) W rises from the conveyor belts 21F and 21R. In this case, the beard W blocks the light from the projector 230 of the carry-out sensor 23. For this reason, the carry-out sensor 23 detects the beard W by mistake with the substrate B. In order to prevent the erroneous detection, the electronic component mounting machine 1 executes the conveyor belt inspection method in a predetermined cycle.
- the conveying belt inspection method includes a detection process, a determination process, and a display process.
- FIG. 4 shows a flowchart of the conveyance belt inspection method of the present embodiment.
- FIG. 5 shows a front view of the conveyance belt on the rear side of the electronic component mounting machine in the conveyance belt inspection method.
- the calculation unit 60 shown in FIG. 1 confirms that the belt abnormality confirmation cycle has arrived (S1 in FIG. 4 (step 1, the same applies hereinafter)).
- the arithmetic unit 60 is operating the transport conveyor 2 of the right-side electronic component mounting machine 1 (the electronic component mounting machine 1 that is executing the transport belt inspection method) shown in FIG. (S2 in FIG. 4). That is, it is confirmed whether or not the substrate is currently being conveyed on the conveyor 2 of the electronic component mounting machine 1 on the right side.
- the calculation unit 60 confirms whether or not the board B is unloaded from the left electronic component mounting machine 1 based on the signal from the unloading sensor 23 of the left electronic component mounting machine 1 shown in FIGS. To do. That is, it is confirmed whether or not there is a plan to carry in the board of the conveyor 2 of the electronic component mounting machine 1 on the right side.
- the arithmetic unit 60 operates the conveyor 2 (S3 in FIG. 4).
- the calculation unit 60 monitors whether or not the light from the projector 230 of the carry-out sensor 23 is blocked (S4 in FIG. 4).
- the arithmetic unit 60 does not execute the transport belt inspection method until the next cycle (S7 of FIG. 4). . Further, when the board B is scheduled to be carried into the right electronic component mounting machine 1 in the near future, the calculation unit 60 does not execute the conveyance belt inspection method until the next cycle (S7 in FIG. 4).
- the calculation unit 60 determines whether or not the conveyance belts 21F and 21R are abnormal. Specifically, as shown in FIG. 5, when there is a light shielding, the calculation unit 60 determines that “the conveyor belts 21F and 21R are abnormal” (S8 in FIG. 4). On the other hand, if there is no light shielding while the conveyor belts 21F and 21R are rotated once (S5 in FIG. 4), the calculation unit 60 determines that “the conveyor belts 21F and 21R are normal” (S6 in FIG. 4). .
- the calculation unit 60 displays the determination result (the determination result that “the conveyor belts 21F and 21R are abnormal”) on the display device 7 shown in FIG. Specifically, the screen (not shown) of the display device 7 displays that the conveyor belts 21F and 21R are abnormal. In this way, the control device 6 executes the conveyor belt inspection method.
- the conveyor belts 21F and 21R can be inspected using the idle time of the substrate B conveyance. For this reason, during the production of the substrate B, the downtime associated with the inspection of the conveyor belts 21F and 21R hardly occurs.
- the detection position (the position of the carry-out sensor 23) is set to one place on the conveyance path A. For this reason, the entire length of the conveyor belts 21F and 21R can be inspected by one detection position, that is, a single carry-out sensor 23. Therefore, the number of arrangement of the carry-out sensor 23 can be reduced.
- the rotation speed of the conveyor belts 21F and 21R at the time of inspection of the conveyor belts 21F and 21R is only once. For this reason, compared with the case where the rotation speed of the conveyance belts 21F and 21R is a plurality of times, the time required for the inspection of the conveyance belts 21F and 21R can be shortened.
- the carry-out sensor 23 is shared by the pair of conveyor belts 21F and 21R. For this reason, the inspection of the pair of conveyor belts 21F and 21R can be simultaneously performed by the common carry-out sensor 23. Therefore, the time required for the inspection of the conveyor belts 21F and 21R can be shortened as compared with the case where the inspection is separately performed for the conveyor belts 21F and 21R.
- the electronic component mounting machine 1 according to the present embodiment includes a display device 7. For this reason, the operator can visually recognize the abnormality of the conveyor belts 21F and 21R.
- FIG. 6 is a front view of the conveyance belt on the rear side of the electronic component mounting machine according to another embodiment.
- part corresponding to FIG. 3 it shows with the same code
- the carry-in sensor 22 and the carry-out sensor 23 are both included in the concept of “substrate sensor” of the present invention.
- the control device 6 shown in FIG. 1 executes inspection of the conveyance belts 21F and 21R using the detection positions at both the left and right ends of the conveyance path A.
- the control device 6 performs the conveyance belt 21F, 21R is rotated by L0-L1. If it carries out like this, the full length L0 of the conveyance belts 21F and 21R can be test
- the carry-in sensor 22 when there is a mustache W adjacent to the downstream side of the carry-out sensor 23, the carry-in sensor 22 can detect the mustache W without rotating the transport belts 21 ⁇ / b> F and 21 ⁇ / b> R once. .
- the rotation distance of the transfer belts 21F and 21R in S5 of FIG. 4 can be shortened. For this reason, the time required for the inspection of the conveyor belts 21F and 21R can be shortened.
- the control device 6 shown in FIG. 1 can recognize that there is a passing object at the detection position of the substrate sensor (the carry-in sensor 22 and the carry-out sensor 23).
- the identity of the passing object cannot be specified. Therefore, when there is light shielding in S4 of FIG. 4 (when there is a passing object), the conveyance belts 21F and 21R may be rotated once with the light shielding as a rotation start condition. If it carries out like this, the passing-through object site
- the control device 6 may determine that the conveyance belts 21F and 21R are abnormal.
- the control device 6 may determine that there is no abnormality in the conveyor belts 21F and 21R.
- the control device 6 can determine whether or not the light shielding is caused by the transport belts 21F and 21R by rotating the transport belts 21F and 21R once with the light shielding as a rotation start condition.
- control device 6 shown in FIG. 1 may stop the conveyor belts 21F and 21R. In this way, the operator can confirm the abnormal portion of the conveyor belts 21F and 21R by visually checking the vicinity of the carry-out sensor 23.
- the determination method of whether or not there is a plan to carry in the board in the near future of the transfer conveyor 2 of the right-side electronic component mounter 1 (the electronic component mounter 1 that is executing the transfer belt inspection method) shown in FIG.
- the near future based on the signal from the carry-out sensor 23 of the left-side electronic component mounting machine 1 shown in FIG. 2 (the electronic component mounting machine 1 adjacent to the upstream side of the electronic component mounting machine 1 that is executing the conveyor belt inspection method). It may be determined whether or not there is a plan to carry in the substrate. Further, the presence or absence of the board B in the left electronic component mounting machine 1 may be confirmed by the right electronic component mounting machine 1 communicating with the left electronic component mounting machine 1. When the left electronic component mounting machine 1 has the board B, it is determined that “the board B is scheduled to be carried into the transfer conveyor 2 of the right electronic component mounting machine 1 in the near future”. Good.
- the display content of “abnormal” on the display device 7 shown in S8 of FIGS. 1 and 4 is not particularly limited. A message using characters, figures, symbols, or the like may be used. Further, the display may be blinked and reversed in black and white. Further, instead of the display device 7, a lamp, a siren, a buzzer, or the like may be arranged. That is, a transmitting device that can transmit information indicating “abnormality” may be electrically connected to the control device 6. Further, the display device 7 may display information regarding the deterioration of the conveyor belts 21F and 21R and the promotion of replacement of the conveyor belts 21F and 21R instead of the information “abnormality exists”.
- the type of substrate sensor is not particularly limited. A photoelectric sensor, an ultrasonic sensor, etc. may be sufficient.
- the light source of the projector 230 is not particularly limited. It may be an LED (Light-Emitting Diode), a semiconductor laser diode, or the like.
- the light receiving element of the light receiver 231 is not particularly limited. A photodiode, a phototransistor, or the like may be used.
- the type of light emitted from the projector 230 is not particularly limited. It may be visible light, infrared light, laser, or the like.
- the detection step, the determination step, and the display step of the conveying belt inspection method may be performed simultaneously. That is, while performing the detection process, the determination process and the display process may be performed according to the signal from the carry-out sensor 23. Further, after the detection process is completed, the determination process and the display process may be executed.
- the electronic component mounting machine 1 on the right side is used as the substrate transfer device of the present invention.
- the screen printing machine 91, the printing inspection machine 92, the left electronic component mounting machine 1, the board appearance inspection machine 93, and the reflow furnace 94 shown in FIG. 1 may be used as the board conveying device.
- a control device other than the control device 6 of the substrate transport apparatus including the transport belts 21F and 21R to be inspected by the transport belt inspection method may execute the transport belt inspection method.
- the inspection of the conveyor belts 21F and 21R of the electronic component mounting machine 1 on the right side is performed by the control device of the host computer 90, the control device of the screen printing machine 91, the control device of the print inspection machine 92 shown in FIG.
- the control device of the mounting machine 1, the control device of the board appearance inspection machine 93, the control device of the reflow furnace 94, a portable terminal such as a smartphone, a personal computer, or the like may be executed.
- control device of the host computer 90 shown in FIG. 1 is based on the position and distribution of the substrate B in the entire length of the production line 9, and the screen printing machine 91, the print inspection machine 92, the left electronic component mounting machine 1, and the right side. From the electronic component mounting machine 1, the board appearance inspection machine 93, and the reflow furnace 94, the board transfer device (single or plural) for executing the inspection and the timing for executing the inspection may be determined. In addition, the operator may determine the substrate transfer apparatus that performs the inspection and the timing at which the inspection is performed. For example, the inspection may be executed in the morning (before the start of production of the substrate B), at noon (at the time of work break), or at the time of changeover when the type of the substrate B to be produced is changed.
- the position of the substrate sensor (the carry-in sensor 22 and the carry-out sensor 23) and the detection position of the substrate sensor do not have to coincide (or approach).
- the substrate sensor may be arranged at a position separated from the detection position. That is, it suffices if the substrate sensor can detect the presence or absence of a passing object at the detection position.
- the position of the detection position in the conveyance path A and the set number are not particularly limited.
- a single conveyor belt 21F (or 21R) may be inspected by a single substrate sensor.
- the direction of rotation of the conveyor belts 21F and 21R at the time of inspection is not particularly limited.
- the rotation direction may be the reverse direction to the transport direction of the substrate B.
- the number of rotations of the conveyor belts 21F and 21R at the time of inspection is not particularly limited. The number of rotations may be less than once. The number of rotations may be a plurality of times.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Operations Research (AREA)
- Supply And Installment Of Electrical Components (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Control Of Conveyors (AREA)
Abstract
Description
まず、本実施形態の電子部品実装機が配置された生産ラインの構成について説明する。図1に、本実施形態の電子部品実装機が配置された生産ラインのブロック図を示す。図1に示すように、生産ライン9には、左側(上流側)から右側(下流側)に向かって、スクリーン印刷機91と、印刷検査機92と、2台の電子部品実装機1と、基板外観検査機93と、リフロー炉94と、が一列に並んで配置されている。右側の電子部品実装機1は、本発明の「基板搬送装置」の概念に含まれる。生産ライン9は、ホストコンピュータ90により、統括管理されている。
次に、本実施形態の電子部品実装機の構成について説明する。図2に、図1の生産ラインのうち2台の電子部品実装機が連なる部分の上面図を示す。2台の電子部品実装機1の構成は同様である。図1、図2に示すように、電子部品実装機1は、搬送コンベア2と、スライダ3と、部品供給装置4と、基台5と、制御装置6と、表示装置7と、を備えている。
部品供給装置4は、基台5の前側に配置されている。スライダ3は、基台5の上側に配置されている。スライダ3は、基台5に対して、左右方向に移動可能である。スライダ3は、吸着ノズル30を備えている。吸着ノズル30は、スライダ3に対して、前後方向に移動可能である。スライダ3の左右方向の移動と、吸着ノズル30の前後方向の移動と、を適宜組み合わせることにより、吸着ノズル30は、前後左右方向に自在に移動することができる。このため、吸着ノズル30は、部品供給装置4から基板Bの所定の座標まで、電子部品を搬送することができる。
搬送コンベア2は、前後一対の支持部材20F、20Rと、前後一対の搬送ベルト21F、21Rと、搬送モータ21Mと、搬入センサ22と、搬出センサ23と、を備えている。搬出センサ23は、本発明の「基板センサ」の概念に含まれる。
図1に示すように、制御装置6は、演算部60と、記憶部61と、入出力インターフェイス62と、を備えている。演算部は、CPU(Central Processing Unit)である。記憶部61は、ROM(Read Only Memory)と、RAM(Random Access Memory)と、を備えている。入出力インターフェイス62は、搬入センサ22、搬出センサ23、搬送モータ21M、表示装置7、ホストコンピュータ90、スクリーン印刷機91、印刷検査機92、もう1台の電子部品実装機1、基板外観検査機93、リフロー炉94に、電気的に接続されている。
次に、本実施形態の搬送ベルト検査方法について説明する。搬送ベルト検査方法は、2台の電子部品実装機1のうち、右側の電子部品実装機1により実行される。また、搬送ベルト検査方法には、搬出センサ23が用いられる。また、搬送ベルト検査方法においては、制御装置6が、前後一対の搬送ベルト21F、21Rの検査を、同時に実行する。
本工程においては、まず、図1に示す演算部60が、ベルト異常確認サイクルが到来したことを、確認する(図4のS1(ステップ1、以下同様))。次に、演算部60は、搬送モータ21Mの駆動状態を基に、図2に示す右側の電子部品実装機1(搬送ベルト検査方法実行中の電子部品実装機1)の搬送コンベア2が稼働中か否かを確認する(図4のS2)。つまり、右側の電子部品実装機1の搬送コンベア2の、現在における基板搬送の有無を確認する。並びに、演算部60は、図1、図2に示す左側の電子部品実装機1の搬出センサ23の信号を基に、左側の電子部品実装機1から基板Bが搬出されるか否かを確認する。つまり、右側の電子部品実装機1の搬送コンベア2の、基板搬入予定の有無を確認する。
本工程においては、図4のS4における監視結果を基に、演算部60が、搬送ベルト21F、21Rの異常の有無を判別する。具体的には、図5に示すように、遮光があった場合、演算部60は、「搬送ベルト21F、21Rに異常有り」と判別する(図4のS8)。一方、搬送ベルト21F、21Rを一回転させる間に(図4のS5)、遮光がなかった場合、演算部60は、「搬送ベルト21F、21Rに異常無し」と判別する(図4のS6)。
本工程においては、演算部60が、判別結果(「搬送ベルト21F、21Rに異常有り」という判別結果)を、図1に示す表示装置7に表示する。具体的には、表示装置7の画面(図略)に、搬送ベルト21F、21Rに異常が有る旨を表示する。このようにして、制御装置6は、搬送ベルト検査方法を実行する。
次に、本実施形態の電子部品実装機1および搬送ベルト検査方法の作用効果について説明する。図1、図4に示すように、本実施形態の電子部品実装機1および搬送ベルト検査方法によると、本来、基板Bの検出のために用いられる搬出センサ23を流用して、搬送ベルト21F、21Rの異常を検出することができる。また、搬送ベルト21F、21Rの検査時に、敢えて搬出センサ23を動かす必要がない。このため、搬送ベルト21F、21Rの異常を、簡単に検出することができる。したがって、基板B搬送時に、搬出センサ23が、搬送ベルト21F、21Rの異常箇所(ヒゲWなど)と、基板Bと、を誤認するのを、抑制することができる。また、搬出センサ23とは別に搬送ベルト21F、21R検査専用のセンサを配置する場合と比較して、センサの配置数を削減することができる。
以上、本発明の基板搬送装置および搬送ベルト検査方法の実施の形態について説明した。しかしながら、実施の形態は上記形態に特に限定されるものではない。当業者が行いうる種々の変形的形態、改良的形態で実施することも可能である。
Claims (3)
- 基板を搬送する搬送路が設定された無端環状の搬送ベルトと、
該搬送路の所定の検出位置における該基板の有無を検出する基板センサと、
該搬送路が該基板を搬送していない際に、該搬送ベルトを回動させ、該基板センサの検出結果を基に該搬送ベルトの異常を判別する制御装置と、
を備える基板搬送装置。 - 前記制御装置の判別結果を表示する表示装置を備える請求項1に記載の基板搬送装置。
- 無端環状の搬送ベルトに設定された搬送路が基板を搬送していない際に、該搬送ベルトを回動させ、該搬送路の所定の検出位置における通過物の有無を検出する検出工程と、
検出結果を基に該搬送ベルトの異常を判別する判別工程と、
を有する搬送ベルト検査方法。
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US15/507,483 US10315854B2 (en) | 2014-09-04 | 2014-09-04 | Board conveyance device and conveyance belt inspection method |
CN201480081598.XA CN106660709A (zh) | 2014-09-04 | 2014-09-04 | 基板输送装置以及输送带检查方法 |
PCT/JP2014/073357 WO2016035190A1 (ja) | 2014-09-04 | 2014-09-04 | 基板搬送装置および搬送ベルト検査方法 |
EP14901377.3A EP3190069B1 (en) | 2014-09-04 | 2014-09-04 | Substrate conveyance device and method for inspecting conveyor belt |
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JP2020150101A (ja) * | 2019-03-13 | 2020-09-17 | パナソニックIpマネジメント株式会社 | 作業機および作業機の診断方法 |
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JP6691854B2 (ja) * | 2016-09-23 | 2020-05-13 | 株式会社Fuji | フィーダ保守装置 |
WO2018209613A1 (zh) * | 2017-05-17 | 2018-11-22 | 深圳市柔宇科技有限公司 | 基板受力状况的判断方法及运输系统 |
TWI720914B (zh) * | 2020-07-02 | 2021-03-01 | 群翊工業股份有限公司 | 板件輸送裝置 |
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