JP5639912B2 - Parts supply apparatus and splicing operation confirmation method - Google Patents

Description

  The present invention relates to a component supply device that supplies an electronic component to be mounted on a substrate, and a splicing operation confirmation method for confirming a splicing operation for joining a new tape to a tape that has consumed the electronic component.

  When the electronic component is mounted on the substrate, the mounting electronic component is supplied from the component supply device. The tape feeder of the component supply apparatus includes a tape in which a large number of electronic components are sealed along the longitudinal direction, a reel on which the tape is wound, and a reel holder in which the reel is accommodated. As the electronic components are mounted on the substrate, the electronic components on the tape are consumed one after another. Here, if the tape (specifically, the reel with the tape) is replaced after the electronic components are completely removed, the production of the substrate is delayed during the replacement. For this reason, before all the electronic components are consumed, an operation of connecting a new tape to a tape that is consuming the components, that is, a splicing operation is performed. Electronic components are continuously supplied during the splicing operation. For this reason, there is no possibility that production of the substrate will be delayed.

  The splicing work is performed according to the following procedure. First, an operator takes out a reel around which an existing tape that is consuming parts is wound from a reel holder. Next, the tape is removed from the reel. Then, the rear end of the tape feeding direction is confirmed, and the tape is cut at a position corresponding to the tape pitch. Subsequently, the front end of the tape wrapped around the new reel is confirmed, and the tape is cut at a position corresponding to the tape pitch. Then, the rear end in the feed direction of the existing tape is joined to the front end in the feed direction of the new tape. Finally, a new reel is attached to the reel holder. In this way, the splicing operation is performed.

JP 2008-41820 A

  Here, in the component supply apparatus, a large number of reel holders are arranged side by side for each type of electronic component. For this reason, there is a possibility that a tape connection error may occur between adjacent tapes. For example, there is a possibility that a new tape having a different type of electronic component from the tape may be connected to a tape that is not the target of splicing work. In this case, by switching the tape, different types of electronic components are supplied from the same reel. Moreover, there is a possibility that a new tape may not be connected to the tape that is the target of the splicing work. In this case, the electronic components are completely lost from the tape. For this reason, the production of the substrate is delayed.

  By the way, in recent years, the arrangement of electronic components in the component supply apparatus, that is, the arrangement of the tape is often optimized. That is, the electronic component is transported by the suction nozzle and mounted on the substrate. From the viewpoint of shortening the substrate production time, a plurality of types of small electronic components are conveyed at a time using a multipoint mounting head having a plurality of suction nozzles.

  In order to increase the efficiency of the transport path of the mounting head, a plurality of types of small electronic components that are transported at a time are arranged close to each other. Therefore, coupled with the fact that small electronic components are difficult to see, in recent years, splicing errors are more likely to occur during splicing operations.

  Patent Document 1 discloses a component counting device that measures the weight of a reel and calculates the number of electronic components included in the reel based on the weight. However, there is no description regarding splicing work.

  The component supply device and the splicing operation confirmation method of the present invention have been completed in view of the above problems. It is an object of the present invention to provide a component supply device and a splicing operation confirmation method that are unlikely to cause connection errors during splicing operations.

  (1) In order to solve the above-described problem, the component supply apparatus of the present invention directly or indirectly specifies a tape feeder having a tape on which a plurality of electronic components are arranged, and a quantity related to the remaining amount of the electronic component of the tape. And a controller for discriminating a splicing error in splicing work for splicing a new tape to the tape based on the quantity detected from the quantity detecting means. .

  Here, the “new tape” refers to a tape that is prepared for replenishing electronic components and is different from the tape in use. The “quantity related to the remaining amount of electronic parts on the tape” refers to a quantity that changes as the remaining amount of electronic parts on the tape changes. For example, the weight of the tape, the number of electronic parts of the tape, the number of windings of the tape, and the like.

  The component supply apparatus of the present invention determines a connection error in splicing work based on such a quantity. For example, when the quantity related to the remaining amount of electronic components on the tape is substantially constant before and after the splicing operation, there is a possibility that the new tape is connected to another tape near the tape instead of the tape. . In other words, a connection error may have occurred. As described above, according to the component supply device of the present invention, it is possible to suppress the occurrence of a connection error during the splicing operation by monitoring the quantity related to the remaining amount of the electronic component on the tape.

  (2) Preferably, in the configuration of (1), the tape feeder includes a reel on which the tape is wound and a reel holder on which the reel is detachably held, and the splicing operation is performed The reel is executed in a state where the reel is taken out from the reel holder, and the control device detects the quantity related to the reel detected by the quantity detection means as an initial value, an intermediate value less than the previous value, When changing in order of late values greater than the mid-term value, it is preferable to determine the connection error by referring to at least one of the previous term value, the mid-term value, and the late value.

  As an example, FIG. 1 shows a schematic diagram of changes in the quantity of reels before and after the splicing operation. In addition, FIG. 1 is for demonstrating an example of the effect | action of this invention, and does not limit the content of this invention at all. For example, the change in the quantity of reels associated with consumption of electronic components may not be linear. Further, the mid-term value d3 may not be 0 or substantially 0.

  As shown in FIG. 1, as the electronic components are consumed, the number of reels gradually decreases from the initial value d1 to the previous value d2. When the quantity reaches the previous value d2, the reel is taken out from the reel holder. Then, splicing work is performed from time t1 to time t2. During this time, the quantity of reels becomes a medium term value d3 which is smaller than the previous term value d2. When the splicing operation is completed, a new reel is attached to the reel holder. At this time, the number of reels becomes a late value d4 that is larger than the middle term value d3 and larger than the previous term value d2. Thereafter, as the electronic components are consumed, the number of reels gradually decreases. Thus, when the late value d4 increases with respect to the first term value d2 and the middle term value d3, there is a high possibility that the splicing work has been performed appropriately.

  On the other hand, if the splicing operation is not performed between time t1 and time t2, that is, if the reel once removed from the reel holder is reattached to the reel holder as it is, The quantity is a late value d5 that is greater than the mid-term value d3 and substantially equal to the previous term value d2. In this way, when the previous period value d2 and the latter period value d5 are substantially equal, the new tape is connected to the tape wrapped around another reel in the vicinity of the reel instead of the tape wound around the reel. there is a possibility. In other words, a connection error may have occurred.

  As described above, according to this configuration, it is possible to determine a connection error by referring to at least one of the previous period value d2, the middle period value d3, and the later period values d4 and d5.

  (2-1) Preferably, in the configuration of (2), when the number of any single reel among the plurality of reels is the medium value, the number of the other reels It is better to adopt a configuration that suppresses the intermediate value from being reached.

  When the reel is taken out from the reel holder, the quantity of the reel becomes the medium term value. That is, when the number of reels is a medium value, splicing work may be performed. Focusing on this point, according to the present configuration, it is possible to prevent a plurality of reels from simultaneously reaching the middle value. For this reason, it can suppress that a splicing operation | work is simultaneously performed with respect to several tapes. Therefore, it can suppress that the tape which has a different kind of electronic component is connected.

(3) Preferably, in the configuration of the above (2), the control device generates a component run-out notice before the electronic components are removed from the tape, and the control device is configured to satisfy the following conditions (A) to ( When all of C) is satisfied, it is better to determine that the reel taken out from the reel holder is wrong.
(A) The medium-term value is a value corresponding to a state in which the reel is removed from the reel holder.
(B) There is no notice that the parts run out regarding the tape wound around the reel.
(C) The part-out notice regarding the tape wound on another reel near the reel has occurred.

  Here, “A medium-term value is a value corresponding to the state in which the reel is removed from the reel holder” in (A) differs depending on what is used as the quantity related to the reel. For example, when the quantity related to the reel is the weight of the reel, “medium value = approximately 0” corresponds to the state where the reel is removed from the reel holder. Further, when the quantity related to the reel is the number of times of tape winding on the reel, “medium value = predetermined number of tape windings” corresponds to the state where the reel is taken out from the reel holder. When the quantity related to the reel is the remaining number of electronic parts on the tape, “medium value = predetermined number of electronic parts” corresponds to the state where the reel is removed from the reel holder.

  According to this configuration, it can be determined that a reel that is not the target of splicing work has been taken out from the reel holder. Further, it can be determined that the reel that is the target of the splicing work has not been taken out from the reel holder.

(4) Preferably, in the configuration of the above (2) or (3), the control device generates a component run-off notice before the electronic component is removed from the tape, and the control device has the following conditions ( In a case where all of a) to (c) are satisfied, it is better to determine that the reel attached to the reel holder is wrong.
(A) The latter term value is larger than the earlier term value.
(B) There is no notice that the parts run out regarding the tape wound around the reel.
(C) The part-out notice regarding the tape wound on another reel near the reel has occurred.

  According to this configuration, it can be determined that a new tape is connected to a tape that is not the target of splicing work. Further, it can be determined that a new tape is not connected to the tape to be spliced.

  (5) Preferably, in any one of the constitutions (1) to (4), the quantity is a weight of the tape, and the quantity detecting means detects the weight of the tape directly or indirectly. It is better to have a configuration that is a weight sensor.

  The weight of the tape gradually decreases as the electronic components are consumed. The splicing operation is performed before all the electronic components are consumed. If the splicing work is properly performed, the weight of the tape becomes heavier after the splicing work than before the splicing work. The weight of the tape after the splicing operation gradually decreases as the electronic components are consumed. In this way, the weight of the tape changes.

  In this configuration, a splicing error in splicing work is determined based on such a change in the weight of the tape. For example, when the weight of the tape is substantially constant before and after the splicing operation, there is a possibility that a new tape is connected to another tape near the tape instead of the tape. In other words, a connection error may have occurred. As described above, according to this configuration, it is possible to suppress the occurrence of a connection error during the splicing operation by monitoring the weight of the tape.

  (6) Preferably, in the configuration of the above (5), the weight sensor is arranged on the reel holder and detects the weight of the reel. According to this configuration, a change in the weight of the tape can be indirectly detected through a change in the weight of the reel.

  (7) Preferably, in any one of the above configurations (2) to (6), a collating device that collates the correspondence between the reel holder and the reel is provided, and the control device performs the correspondence before and after the splicing work. It is better to have a configuration for discriminating the consistency.

  When the reel holder does not correspond to the reel, an electronic component different from the electronic component scheduled to be supplied from the reel holder is supplied from the reel holder. For this reason, the mounting mistake of the electronic component with respect to a board | substrate becomes easy to generate | occur | produce.

  In this regard, according to this configuration, it is possible to determine whether or not a reel having the same type of electronic component is mounted on a predetermined reel holder before and after the splicing operation. For this reason, it is difficult to cause an error in mounting the electronic component on the board.

  (8) In order to solve the above-described problem, the splicing operation confirmation method of the present invention is configured to directly or directly determine a quantity of a tape feeder having a tape on which a plurality of electronic components are arranged and the remaining amount of the electronic components on the tape. A splicing operation confirmation method for a component supply apparatus, comprising: a quantity detecting means for indirectly detecting; and a control device for determining a splicing error in splicing work for joining a new tape to the tape, wherein the quantity is directly or indirectly The method includes a quantity detection step for detecting automatically, and a connection error determination step for determining a connection error in the splicing work based on the detected quantity.

  Here, the “new tape” refers to a tape that is prepared for replenishing electronic components and is different from the tape in use. The “quantity related to the remaining amount of electronic parts on the tape” refers to a quantity that changes as the remaining amount of electronic parts on the tape changes. For example, the weight of the tape, the number of electronic parts of the tape, the number of windings of the tape, and the like.

  As described in (1) above, the splicing work confirmation method of the present invention determines a splicing error in the splicing work based on such a quantity. For example, when the quantity related to the remaining amount of electronic components on the tape is substantially constant before and after the splicing operation, there is a possibility that the new tape is connected to another tape near the tape instead of the tape. . In other words, a connection error may have occurred. As described above, according to the component supply device of the present invention, it is possible to suppress the occurrence of a connection error during the splicing operation by monitoring the quantity related to the remaining amount of the electronic component on the tape.

  (9) Preferably, in the configuration of (8), the tape feeder includes a reel on which the tape is wound, and a reel holder on which the reel is detachably held, and the splicing operation is performed The reel is executed with the reel removed from the reel holder, and in the splicing error determination step, the quantity related to the reel is a previous period value, a medium period value smaller than the previous period value, and a medium period value. When changing in order of many late values, it is preferable to determine the connection error by referring to at least one of the previous value, the middle value, and the late value. As described in (2) above, according to this configuration, a connection error can be determined by referring to at least one of the previous period value, the middle period value, and the later period value.

  (9-1) Preferably, in the configuration of (9) above, in the quantity detection step, when the quantity of any single reel among the plurality of reels is the medium value, the other reels It is better to make it the structure which suppresses that quantity of this becomes this middle-term value.

  As described in (2-1) above, according to this configuration, it is possible to prevent a plurality of reels from simultaneously reaching an intermediate value. For this reason, it can suppress that a splicing operation | work is simultaneously performed with respect to several tapes. Therefore, it can suppress that the tape which has a different kind of electronic component is connected.

(10) Preferably, in the configuration of (9) above, in the splicing error determination step, the reel taken out from the reel holder is wrong when all of the following conditions (A) to (C) are satisfied: It is better to have a configuration that determines that the
(A) The medium-term value is a value corresponding to a state in which the reel is removed from the reel holder.
(B) With respect to the tape wound around the reel, no component warning has occurred yet before the electronic component disappears from the tape.
(C) The part-out notice regarding the tape wound on another reel near the reel has occurred.

  Here, “A medium-term value is a value corresponding to the state in which the reel is removed from the reel holder” in (A) differs depending on what is used as the quantity related to the reel. For example, when the quantity related to the reel is the weight of the reel, “medium value = approximately 0” corresponds to the state where the reel is removed from the reel holder. Further, when the quantity related to the reel is the number of times of tape winding on the reel, “medium value = predetermined number of tape windings” corresponds to the state where the reel is taken out from the reel holder. When the quantity related to the reel is the remaining number of electronic parts on the tape, “medium value = predetermined number of electronic parts” corresponds to the state where the reel is removed from the reel holder.

  According to this configuration, it can be determined that a reel that is not the target of splicing work has been taken out from the reel holder. Further, it can be determined that the reel that is the target of the splicing work has not been taken out from the reel holder.

(11) Preferably, in the configuration of (9) or (10), the connection error determination step is attached to the reel holder when all of the following conditions (a) to (c) are satisfied: It is better to adopt a configuration for determining that the reel is wrong.
(A) The latter term value is larger than the earlier term value.
(B) With respect to the tape wound around the reel, no component warning has occurred yet before the electronic component disappears from the tape.
(C) The part-out notice regarding the tape wound on another reel near the reel has occurred.

  According to this configuration, it can be determined that a new tape is connected to a tape that is not the target of splicing work. Further, it can be determined that a new tape is not connected to the tape to be spliced.

  (12) Preferably, in any one of the configurations (8) to (11), the quantity is a weight of the tape, and the quantity detection means detects the weight of the tape directly or indirectly. Preferably, the quantity detection step is a weight detection step for detecting the weight of the tape directly or indirectly.

  As described in (5) above, the present configuration discriminates a splicing error in the splicing work based on the change in the weight of the tape. For example, when the weight of the tape is substantially constant before and after the splicing operation, there is a possibility that a new tape is connected to another tape near the tape instead of the tape. In other words, a connection error may have occurred. As described above, according to this configuration, it is possible to suppress the occurrence of a connection error during the splicing operation by monitoring the weight of the tape.

  (13) Preferably, in any one of the above configurations (9) to (12), the component supply device includes a verification device for verifying correspondence between the reel holder and the reel, and in the splicing error determination step Is preferably configured to determine the corresponding consistency before and after the splicing operation.

  As described in (7) above, according to this configuration, it is possible to determine whether or not a reel having the same type of electronic component is mounted on a predetermined reel holder before and after the splicing operation. For this reason, it is difficult to cause an error in mounting the electronic component on the board.

  According to the present invention, it is possible to provide a component supply device and a splicing operation confirmation method that are unlikely to cause a connection error during the splicing operation.

It is a schematic diagram which shows the quantity change of the reel before and after splicing work. It is a perspective view of an electronic component mounting machine provided with the component supply apparatus which is one Embodiment of this invention. It is a right view of the same electronic component mounting machine. It is a permeation | transmission right side view of the tape feeder of the said components supply apparatus. It is a block diagram of the control apparatus of the component supply apparatus. It is a permeation | transmission right view of the state by which the electronic component of the tape feeder of the component supply apparatus was consumed. It is a permeation | transmission right side view in the splicing operation | work of the tape feeder of the component supply apparatus. It is a flowchart of the splicing work confirmation method of this embodiment.

  Hereinafter, embodiments of the component supply device and the splicing operation confirmation method of the present invention will be described.

<Configuration of electronic component mounting machine>
First, the configuration of an electronic component mounter including the component supply device of this embodiment will be described. In the following drawings, the left side corresponds to the upstream side in the substrate transport direction. The right side corresponds to the downstream side in the substrate transport direction. FIG. 2 is a perspective view of an electronic component mounting machine including the component supply device of the present embodiment. FIG. 3 shows a right side view of the electronic component mounting machine. In FIG. 2, the module 3 is shown in a transparent manner. As shown in FIGS. 2 and 3, the electronic component mounting machine 1 includes a base 2, a module 3, a component supply device 4, and a device pallet 5.

[Base 2, Module 3]
The base 2 is arranged on the factory floor. The module 3 is detachably disposed on the upper surface of the base 2. The module 3 includes an XY robot 31, a mounting head 32, a control device (not shown), and a display device 33.

  The X direction corresponds to the left-right direction, the Y direction corresponds to the front-rear direction, and the Z direction corresponds to the up-down direction. The XY robot 31 includes a Y direction slider 310, an X direction slider 311, a pair of left and right Y direction guide rails 312, and a pair of upper and lower X direction guide rails 313.

  The pair of left and right Y-direction guide rails 312 are disposed on the upper surface of the housing internal space of the module 3. The Y-direction slider 310 is attached to a pair of left and right Y-direction guide rails 312 so as to be slidable in the front-rear direction. The pair of upper and lower X-direction guide rails 313 is disposed on the front surface of the Y-direction slider 310. The X-direction slider 311 is attached to a pair of upper and lower X-direction guide rails 313 so as to be slidable in the left-right direction.

  The mounting head 32 is attached to the X direction slider 311. For this reason, the mounting head 32 can be moved in the front-rear and left-right directions by the XY robot 31. Below the mounting head 32, the suction nozzle 320 is attached in a replaceable manner. The suction nozzle 320 is movable downward with respect to the mounting head 32. For this reason, the suction nozzle 320 can be moved by the XY robot 31 and the mounting head 32 in the front-rear, left-right, up-down directions. The suction nozzle 320 has a function as a component conveying member that conveys electronic components. The display device 33 is disposed on the front surface of the housing of the module 3. The state of the electronic component mounting machine 1 is displayed on the display device 33 according to an instruction from the control device.

[Device pallet 5, component supply device 4]
The device pallet 5 is attached to the front opening of the housing of the module 3. The device pallet 5 includes a number of slots 51 that are elongated in the front-rear direction. The device pallet 5 has a function as a device mounting portion for detachably mounting peripheral devices such as a tape feeder 40, a dip flux unit (not shown), and a tray unit (not shown) described later.

  The component supply device 4 includes a large number of tape feeders 40, the same number of weight sensors (not shown) as the tape feeders 40, a control device (not shown), and a verification device (not shown). Each of the multiple tape feeders 40 is detachably attached to the slot 51. That is, the slot 51 has a function as a tape feeder attachment portion. When the tape feeder 40 is attached to the slot 51, the tape feeder 40 is simultaneously connected to the control device of the module 3 via a connector (not shown).

  In FIG. 4, the permeation | transmission right side view of the tape feeder of the components supply apparatus of this embodiment is shown. As shown in FIG. 4, the tape feeder 40 includes a tape 400, a reel 401, a reel holder 402, a sprocket 403, and a main body frame 404.

  The main body frame 404 has a hollow thin plate shape. A component supply position E is disposed at the rear end (board side end) of the upper surface of the main body frame 404. The sprocket 403 is accommodated in the main body frame 404. The sprocket 403 can be rotated intermittently by a motor (not shown) driven by a control device. A large number of protrusions are arranged on the outer peripheral edge of the sprocket 403. As the sprocket 403 rotates, the protrusions can appear and disappear in order above the main body frame 404. The reel holder 402 is disposed in front of the main body frame 404. The reel holder 402 has an elongated box shape that opens upward. The reel 401 is accommodated in the reel holder 402 so as to be detachable from above. The reel holder 402 has a function as a reel holding unit that holds the reel 401 rotatably.

  The tape 400 is wound around the shaft portion 401 a of the reel 401. The tape 400 is drawn backward (toward the board) from the top of the reel 401. The drawn tape 400 extends in the front-rear direction along the upper surface of the main body frame 404. The tape 400 includes a carrier tape 400a and a cover tape 400b. A large number of electronic components are accommodated in the carrier tape 400a so as to be able to be taken out from above with a predetermined interval in the longitudinal direction. The upper surface of the carrier tape 400a is covered with a cover tape 400b. That is, the cover tape 400b seals the electronic component from above. The carrier tape 400a has a large number of feed holes (not shown) arranged in a dotted line at a predetermined interval in the longitudinal direction. The protrusion of the sprocket 403 can be engaged with and disengaged from the feed hole. The feed hole or tape 400 is fed in the direction from the reel 401 toward the component supply position E or from the component supply position E toward the reel 401 as the protrusion or sprocket 403 rotates. The feed hole and sprocket 403 has a function as a tape feed mechanism for feeding the tape 400.

  The weight sensor 41 is disposed on the upper surface of the bottom wall in the box of the reel holder 402. In a state where the reel 401 is attached to the reel holder 402, the reel 401 is placed on the weight sensor 41. Therefore, the weight sensor 41 can detect the weight of the reel 401, that is, the tape 400.

  The control device of the component supply device 4 is a control device of the module 3. FIG. 5 shows a block diagram of a control device of the component supply device of the present embodiment. In FIG. 5, only the portion related to the component supply apparatus of the present invention is shown. As illustrated in FIG. 5, the control device 42 includes a calculation unit 420, a storage unit 421, and an input / output interface 422.

  A number of tape feeders 40, a number of weight sensors 41, a display device 33, and a verification device 44 are each connected to an input / output interface 422. The verification device 44 is a so-called bar code reader. The collation device 44 can read the barcode arranged on the side surface of the reel 401. The barcode has a function as an individual identification unit used when specifying the reel 401. The control device 42 monitors the weight of the reel 401 from the weight sensor 41. The control device 42 counts the remaining number of electronic components on the tape 400 of the tape feeder 40. When the remaining number of electronic components on the tape 400 becomes equal to or less than the predetermined number, the control device 42 generates a component outage notice. The part-out notice is displayed on the display device 33. For this reason, the operator can visually recognize that the electronic parts of the tape feeder 40 in which the part-out notice has occurred will soon disappear. That is, the tape feeder 40 that needs to perform the splicing operation can be specified.

<Motion of electronic component mounting machine 1>
Next, the movement of the electronic component mounting machine 1 including the component supply device 4 of the present embodiment will be described.

[Motion during board production]
As shown in FIG. 4, the tape 400 is fed from the front to the rear at a predetermined pitch by the sprocket 403 that is intermittently driven by the control device 42. The cover tape 400b of the tape 400 is peeled off from the carrier tape 400a before the tape 400 reaches the sprocket 403. For this reason, only the carrier tape 400a reaches the component supply position E. As highlighted in FIG. 3, at the component supply position E, the electronic component P can be taken out from above.

  As shown in FIGS. 2 and 3, the suction nozzle 320 can be moved in the front-rear, left-right, up-down directions by the XY robot 31 and the mounting head 32. As indicated by a dotted line in FIG. 3, the electronic component P at the component supply position E is sucked by the suction nozzle 320. The sucked electronic component P is transported to the substrate B by the suction nozzle 320. The conveyed electronic component P is mounted at a predetermined coordinate F of the substrate B by the suction nozzle 320.

  FIG. 6 shows a transparent right side view of the tape feeder of the component supply apparatus of this embodiment in a state where the electronic components are consumed. The above-described mounting operation of the electronic component P is sequentially performed on all the tape feeders 40 illustrated in FIG. 2 according to the board production program. For this reason, as shown in FIG. 6, the electronic components of the tape feeder 40 are gradually consumed as the production of the substrate B proceeds.

[Motion during splicing work]
When the remaining number of electronic components on the tape 400 becomes a predetermined number or less, as shown in FIG. The part-out notice is displayed on the display device 33. In this case, the worker performs the splicing work on the tape 400 of the tape feeder 40 in which the part-out notice has occurred.

  FIG. 7 shows a transparent right side view during the splicing operation of the tape feeder of the component supply apparatus of this embodiment. During the splicing operation described below, the electronic component of the tape 400 is continuously supplied from the component supply position E to the substrate B.

  When performing the splicing work, the worker first takes out the existing tape 400 from the reel holder 402 together with the reel 401. Next, the tape 400 is removed from the reel 401. Subsequently, the rear end of the tape 400 in the feeding direction is confirmed, and the tape 400 is cut at a position corresponding to the tape pitch. Then, the front end in the feed direction of the tape 406 mounted on the new reel 405 is confirmed, and the tape 406 is cut at a position corresponding to the tape pitch. Then, the rear end in the feed direction of the existing tape 400 and the front end in the feed direction of the new tape 406 are joined together. Finally, a new reel 405 is attached to the reel holder 402. In this way, the splicing operation is performed.

<Splicing work confirmation method>
Next, the splicing work confirmation method of this embodiment will be described. FIG. 8 shows a flowchart of the splicing work confirmation method of the present embodiment. The splicing work confirmation method of the present embodiment includes a weight detection step and a connection error determination step. In the following description, reference is made to FIG. However, “quantity” in FIG. 1 is read as “weight”.

[Weight detection process]
In this step, as shown in FIGS. 4 to 6, the weight of the reel 401 is continuously detected by the weight sensor 41. That is, the weight of the tape 400 is detected (S (step) 1 in FIG. 8). The detected weight is continuously transmitted from the weight sensor 41 to the control device 42. The above weight detection and transmission operations are executed in all the tape feeders 40 shown in FIG.

[Connecting error discrimination process]
In this step, the state of the tape feeder 40 is determined from the change in weight in the weight detection step. The control device 42 shown in FIG. 5 monitors the change in the weight of the reel 401 in time series (S1 in FIG. 8).

  In step 1, for example, when the weight of the reel 401 decreases as shown in the change from the initial value d1 to the previous value d2 shown in FIG. 1, the control device 42 applies the reel 401 to the reel 401 as shown in FIGS. It is determined that the electronic component is consumed from the wound tape 400. For this reason, no action is taken.

  On the other hand, in step 1, when the weight of the reel 401 once becomes substantially 0 (= intermediate value d3) as in the change from the previous period value d2 to the later period value d5 shown in FIG. That is, it is determined whether or not a part-out notice has occurred for the slot 51 (see FIG. 3) (S2 in FIG. 8). The medium value = approximately 0 is a value corresponding to the state where the reel 401 is removed from the reel holder 402.

  As a result of the determination in step 2, if no part-out notice has occurred, the control device 42 notifies the part 401 about the reel 401 in the vicinity of the reel 401 (for example, within 5 each on the left and right), that is, the slot 51. It is determined whether or not it has occurred (S4 in FIG. 8).

  If the result of determination in step 4 is that there is no notice of component shortage for the nearby slot 51, the control device 42 temporarily removes the reel 401, for example, to clear or check the tape 400. It is determined that it is only. For this reason, no action is taken.

  On the other hand, as a result of the determination in step 4, when a part-out notice has occurred for the nearby slot 51, the control device 42 determines that the reel 401 that does not require splicing work has been removed. Further, it is determined that the reel 401 that requires splicing work has not been taken out. Therefore, as shown in FIG. 5, the control device 42 displays on the display device 33 that the wrong reel 401 has been taken out. Further, the control device 42 displays on the display device 33 that the correct reel 401 is taken out (S5 in FIG. 8).

  On the other hand, if the result of determination in step 2 is that a part-out notice has occurred, the controller 42 should perform the splicing work even though the splicing work should be performed on the tape 400 wound around the reel 401. It is determined that there was not. For this reason, the control device 42 displays an instruction to perform the splicing work on the display device 33 (S3 in FIG. 8).

  On the other hand, when the weight of the reel 401 once becomes substantially 0 (= medium value d3) as in the change from the previous period value d2 to the later period value d4 shown in FIG. When the weight of 401 is significantly increased (preliminary value d2 <late value d4), the control device 42 determines whether or not a component-out notice is occurring for the reel 401, that is, the slot 51 (FIG. 8). S6).

  As a result of the determination in step 6, when the part-out notice is occurring, the control device 42 determines that a new tape 406 is connected to the tape 400 that requires the splicing operation as shown in FIG. For this reason, the control device 42 matches the alignment of the new tape 406, that is, the new reel 405 (specifically, the alignment of the barcode of the reel 401 and the barcode of the reel 405 verified by the verification device 44). It is determined whether or not the confirmation has been completed (S7 in FIG. 8).

  As a result of the determination in step 7, when the consistency has been confirmed, the control device 42 determines that the same type of tape 406 is connected to the tape 400. That is, it is determined that the splicing work has been appropriately performed.

  On the other hand, if the consistency check has not been completed as a result of the determination in step 7, the control device 42 stops using the slot 51 until the consistency check is completed (S8 and S9 in FIG. 8).

  On the other hand, if the result of determination in step 6 shows that no part-out notice has occurred, the control device 42 notifies the part 401 about the reel 401 in the vicinity of the reel 401 (for example, within 5 each on the left and right), that is, the slot 51. Is determined (S10 in FIG. 8).

  If the result of determination in step 10 is that no part-out notice is occurring for the nearby slot 51, the control device 42 determines whether or not the reel alignment has been confirmed (S7 in FIG. 8). This process corresponds to the case where the worker performs the splicing work prior to the occurrence of the part-out notice. As a result of the determination in step 7, when the consistency has been confirmed, the control device 42 determines that the same type of tape 406 is connected to the tape 400. That is, it is determined that the splicing work has been appropriately performed. On the other hand, if the consistency check has not been completed as a result of the determination in step 7, the control device 42 stops using the slot 51 until the consistency check is completed (S8 and S9 in FIG. 8).

  On the other hand, as a result of the determination in step 10, when a part-out notice is occurring for the nearby slot 51, the control device 42 connects the new tape 406 to the tape 400 that does not require splicing work, and sets a new reel 405. It is determined that it has been done. In addition, it is determined that the new tape 406 is not connected to the tape 400 that requires the splicing operation and the existing reel 401 is still set. Therefore, as shown in FIG. 5, the control device 42 displays on the display device 33 that an incorrect reel 405 has been set. Further, the control device 42 displays on the display device 33 that the correct reel 405 is set in the slot 51 requiring the splicing work (S11 in FIG. 8). The control device 42 stops using the slot 51 until the correct reel 405 is set (S12 and S13 in FIG. 8). Thus, the splicing work confirmation method of this embodiment is executed.

<Effect>
Next, the effect of the component supply apparatus 4 and the splicing work confirmation method of this embodiment will be described. As shown in FIG. 8, the component supply device 4 and the splicing operation confirmation method according to the present embodiment change the weight of the reels 401 and 405 (the reels 401 and 405 have substantially the same weight, so the tapes 400 and 406 are substantially changed) Based on the above, the splicing mistake in splicing work is discriminated. For this reason, it can suppress that a connection mistake generate | occur | produces in the case of a splicing operation | work.

  Further, according to the component supply device 4 and the splicing operation confirmation method of the present embodiment, the tape 400 can be attached to and detached from the reel holder 402 together with the reel 401. For this reason, the weight of the tape 400 can be indirectly detected through the weight of the reel 401.

  Further, according to the component supply device 4 and the splicing work confirmation method of the present embodiment, as shown in FIG. 1, it is possible to determine a connection error by comparing the previous period value d2 with the later period values d4 and d5.

  Further, according to the component supply device 4 and the splicing operation confirmation method of the present embodiment, the control device 42 substantially matches the previous value d2 of the reel 401 and the latter value d5 of the reel 405, as shown in FIG. In this case (S1 in FIG. 8), the component outage notice regarding the tape 400 wound on the reel 401 has not occurred (S2 in FIG. 8), and the part outage notice has occurred in the nearby slot 51. Only when it is (S4 in FIG. 8), it is determined that the reel 401 taken out from the reel holder 402 is wrong (S5 in FIG. 8). Therefore, it can be determined that the reel 401 that is not the target of the splicing work has been taken out from the reel holder 402. Further, it can be determined that the reel 401 to be spliced is not taken out from the reel holder 402.

  Further, according to the component supply device 4 and the splicing operation confirmation method of the present embodiment, as shown in FIG. 1, the control device 42 has the latter value d5 of the reel 405 significantly heavier than the previous value d2 of the reel 401. In this case (S1 in FIG. 8), a part-out notice regarding the tape 400 wound on the reel 401 is not occurring (S6 in FIG. 8), and a part-out notice is occurring in the nearby slot 51. Only in some cases (S10 in FIG. 8), it is determined that the reel 405 set in the reel holder 402 is wrong (S11 in FIG. 8). For this reason, it can be determined that the new tape 406 is connected to the tape 400 that is not the target of the splicing work. Further, it can be determined that the new tape 406 is not connected to the tape 400 that is the target of the splicing operation.

  Further, according to the component supply device 4 and the splicing operation confirmation method of the present embodiment, as shown in FIG. 5, the barcodes of the reels 401 and 405 are read by the collating device 44, whereby the existing reel 401 and the new reel 405 are Are related to the same type of electronic component, that is, the reel holder 402 and the reel 405 correspond to each other. Therefore, it is possible to determine whether or not the reels 401 and 405 having the same type of electronic component are mounted on the predetermined reel holder 402 before and after the splicing operation. Therefore, it is difficult to cause a mounting error of the electronic component P to the board B.

<Others>
The embodiments of the component supply device and the splicing work confirmation method of the present invention have been described above. However, the embodiment is not particularly limited to the above embodiment. Various modifications and improvements that can be made by those skilled in the art are also possible.

  For example, as shown in FIG. 1, when the weight of any single reel 401 among the multiple reels 401 is the medium value d3, the weight of the other reels 401 becomes the medium value d3. May be prohibited.

  The fact that the weight of the reel 401 becomes the medium-term value d3 means that the reel 401 has been removed from the reel holder 402. If the splicing operation is performed in a batch with a plurality of reels 401 taken out, a mistake in joining the tapes 400 and 406 is likely to occur. In this regard, if the reel 401 indicating the mid-term value d3 is narrowed down to one, that is, if the reel 401 can be taken out from only one of the many reel holders 402, a misconnection of the tapes 400 and 406 occurs. It becomes difficult.

  Specifically, when the weight of any single reel 401 is the medium-term value d3 but the weight of the other reel 401 is the medium-term value d3, the display device 33 shown in FIG. A warning that the reel 401 has been returned may be displayed. An alarm may be sounded. In addition, a lock mechanism may be used to prevent another reel 401 from being removed from the reel holder 402 when the weight of any single reel 401 is the medium value d3.

  The type of the weight sensor 41 is not particularly limited. For example, various weight sensors such as a strain gauge type, a piezoelectric type, a capacitance type, and an electric resistance type can be used. Further, based on the weight of the reel 401 detected from the weight sensor 41, the control device 42 may count the remaining number of electronic components P on the tape 400. If it carries out like this, the weight sensor 41 can be shared by two uses called the count of the remaining number of the electronic components P, and monitoring of a splicing operation | work.

  In addition to the weight sensor 41 shown in FIG. 4, a component counter that counts the remaining number of electronic components P on the tape 400, a tape counter that counts the number of windings of the tape 400, or the like may be used as the quantity detection unit of the present invention. Good.

  In the above embodiment, as shown in FIG. 2, the reel holder 402 capable of individually accommodating the reels 401 is disposed. However, a bucket type reel holder 402 capable of accommodating a plurality of reels 401 is disposed. May be.

  In the above embodiment, as shown in FIG. 5, the control device 42 is shared by the module 3 and the component supply device 4, but the control device 42 dedicated to the component supply device 4 is replaced with the control device of the module 3. May be arranged separately. Further, both control devices may be partially shared.

  Further, in the above embodiment, as shown in FIG. 5, the existing reel 401 and the new reel 405 are related to the same type of electronic component by reading the barcodes of the reels 401 and 405 with the collation device 44. That is, it was verified that the reel holder 402 and the reel 405 correspond. However, it may be verified that the reel holder 402 and the reel 405 correspond by reading the barcodes of the reel holder 402 and the reel 405 with the verification device 44. Further, it may be verified that the reel holder 402 and the reel 405 correspond by reading the barcodes of the reels 401 and 405 and the reel holder 402 with the verification device 44. Further, the collation operation may be performed by a method other than reading a barcode (for example, image processing using an imaging device such as a camera).

  In the above embodiment, as shown in FIG. 1, the mid-term value d3 is set to approximately 0. However, the mid-term value d3 may not be approximately 0. What is necessary is just to be lighter than the previous period value d2.

  Further, in the above embodiment, in Step 4 and Step 10 of FIG. 8, the slots 51 that are problematic are set to be “neighboring slots” within five slots 51 on the left and right. However, the number of slots included in the range of “near slots” is not particularly limited. As the number of tape feeders 40 increases, the number of slots included in the range of “neighboring slots” may be increased. Further, the number of slots included in the range of “neighboring slots” may be increased as the interval between adjacent slots 51 is narrower. For example, any number of slots 51 within one to ten may be set as “neighboring slots” on both sides around the slot 51 in question.

  Further, in the above embodiment, when the previous period value d2 of the reel 401 and the latter period value d5 of the reel 405 substantially coincide with each other in Step 1 of FIG. Here, “substantially coincidence” includes not only the case where they completely coincide, but also the case where the previous period value d2 and the later period value d5 are slightly different. For example, assuming that the previous period value d2 is 100% and the later period value d5 is 90% or more and 110% or less, it is determined that the earlier period value d2 and the later period value d5 are substantially the same.

  Further, in the above embodiment, the process proceeds to Step 6 when the latter period value d4 of the reel 405 is significantly increased with respect to the earlier period value d2 of the reel 401 in Step 1 of FIG. The criterion for “significant increase” is not particularly limited. For example, as shown in FIG. 1, when the late value d4 is closer to the initial value d1 (weight when the electronic components are not yet consumed) rather than the previous value d2, the late value with respect to the previous value d2. It may be determined that d4 has increased significantly.

1: electronic component mounting machine, 2: base, 3: module, 4: component supply device, 5: device pallet.
31: XY robot, 32: mounting head, 33: display device, 40: tape feeder, 41: weight sensor, 42: control device, 44: verification device, 51: slot.
310: Y direction slider, 311: X direction slider, 312: Y direction guide rail, 313: X direction guide rail, 320: Suction nozzle, 400: Tape, 400a: Carrier tape, 400b: Cover tape, 401: Reel, 401a : Shaft portion, 402: reel holder, 403: sprocket, 404: main body frame, 405: reel, 406: tape, 420: arithmetic unit, 421: storage unit, 422: input / output interface.
B: Substrate, E: Component supply position, F: Coordinate, P: Electronic component, d1: Initial value, d2: Early value, d3: Medium value, d4: Late value, d5: Late value.

Claims (13)

A tape feeder having a tape on which a plurality of electronic components are arranged;
Quantity detection means for directly or indirectly detecting a quantity related to the remaining amount of the electronic component of the tape;
Based on the quantity detected from the quantity detection means, a control device for determining a splicing error in splicing work for splicing a new tape to the tape;
Equipped with a,
The tape feeder has a reel on which the tape is wound, and a reel holder on which the reel is detachably held,
The splicing operation is performed with the reel removed from the reel holder,
When the quantity related to the reel detected by the quantity detecting unit changes in order of a previous period value, a middle period value smaller than the previous period value, and a later period value larger than the middle period value, A component supply device that determines the connection error with reference to at least one of a value, the intermediate value, and the late value .   The control device generates a component outage notice before the electronic component disappears from the tape,
  The component supply device according to claim 1, wherein the control device determines that the reel taken out from the reel holder is wrong when all of the following conditions (A) to (C) are satisfied.
(A) The medium-term value is a value corresponding to a state in which the reel is removed from the reel holder.
(B) There is no notice that the parts run out regarding the tape wound around the reel.
(C) The part-out notice regarding the tape wound on another reel near the reel has occurred.   The control device generates a component outage notice before the electronic component disappears from the tape,
  3. The component supply according to claim 1, wherein the control device determines that the reel attached to the reel holder is wrong when all of the following conditions (a) to (c) are satisfied. apparatus.
(A) The latter term value is larger than the earlier term value.
(B) There is no notice that the parts run out regarding the tape wound around the reel.
(C) The part-out notice regarding the tape wound on another reel near the reel has occurred.   The previous period value is a value corresponding to a state before the reel is taken out from the reel holder,
  The medium term value is a value corresponding to a state in which the reel is removed from the reel holder,
  The component supply apparatus according to claim 1, wherein the late value is a value corresponding to a state in which a new reel is attached to the reel holder. The quantity is the weight of the tape;
The component supply device according to any one of claims 1 to 4, wherein the quantity detection means is a weight sensor that directly or indirectly detects the weight of the tape.   The component supply device according to claim 5, wherein the weight sensor is disposed in the reel holder and detects the weight of the reel. A collation device for collating the correspondence between the reel holder and the reel;
The said control apparatus is a components supply apparatus in any one of Claims 1 thru | or 6 which discriminate | determines this corresponding | compatible consistency before and after the said splicing operation | work. A tape feeder having a tape on which a plurality of electronic components are arranged;
Quantity detection means for directly or indirectly detecting a quantity related to the remaining amount of the electronic component of the tape;
A control device for determining a splicing error in splicing work for splicing a new tape to the tape;
A splicing work confirmation method for a component supply device comprising:
A quantity detection step for detecting the quantity directly or indirectly;
Based on the detected quantity, a connection error determination step for determining a connection error in the splicing work,
I have a,
The tape feeder has a reel on which the tape is wound, and a reel holder on which the reel is detachably held,
The splicing operation is performed with the reel removed from the reel holder,
In the splicing error determination step, when the quantity related to the reels changes in the order of the first term value, the middle term value less than the first term value, and the latter term value greater than the middle term value, the first term value and the middle term value The splicing operation confirmation method , wherein the splicing error is determined with reference to at least one of the late values .   The splicing operation confirmation according to claim 8, wherein the splicing error determination step determines that the reel taken out from the reel holder is wrong when all of the following conditions (A) to (C) are satisfied. Method.
(A) The medium-term value is a value corresponding to a state in which the reel is removed from the reel holder.
(B) With respect to the tape wound around the reel, no component warning has occurred yet before the electronic component disappears from the tape.
(C) The part-out notice regarding the tape wound on another reel near the reel has occurred.   The said connection mistake discrimination | determination process WHEREIN: When all the following conditions (a)-(c) are satisfied, it discriminate | determines that the said reel attached to the said reel holder is wrong. Splicing work confirmation method.
(A) The latter term value is larger than the earlier term value.
(B) With respect to the tape wound around the reel, there is still no notice of component shortage that occurs before the electronic component disappears from the tape.
(C) The part-out notice regarding the tape wound on another reel near the reel has occurred.   The previous period value is a value corresponding to a state before the reel is taken out from the reel holder,
  The medium term value is a value corresponding to a state in which the reel is removed from the reel holder,
  9. The splicing operation confirmation method according to claim 8, wherein the late value is a value corresponding to a state where a new reel is attached to the reel holder. The quantity is the weight of the tape;
The quantity detecting means is a weight sensor for directly or indirectly detecting the weight of the tape;
12. The splicing operation confirmation method according to claim 8, wherein the quantity detection step is a weight detection step of directly or indirectly detecting the weight of the tape. The component supply device includes a collation device that collates the correspondence between the reel holder and the reel,
The splicing operation confirmation method according to any one of claims 8 to 12, wherein, in the splicing error determination step, the corresponding consistency before and after the splicing operation is determined.

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