JP6507370B2 - Component supply device, component mounting device and component detection sensor - Google Patents

Description

  The present invention relates to a component supply apparatus for transporting a component supply tape in which components are stored in a storage unit and supplying components, a component mounting apparatus for mounting a supplied component on a substrate, and a component detection sensor used for the component supply apparatus. It is.

  As a component supply device in a component mounting apparatus for mounting components on a substrate, a tape feeder that supplies components in the form of a component supply tape stored in a pocket-like storage unit is widely used. The component supply tape is set in a state of being wound and stored on the reel with a predetermined length, and the electronic component is taken out by the mounting head of the component mounting apparatus from the component supply tape conveyed to the component take-out position by the tape feeder. When all of the component supply tapes stored in one reel are pulled out and the components run out, reel replacement is performed in which a new reel is set and the next component supply tape is additionally supplied.

  At the time of this reel replacement, "empty tape discharge" for sending out the preceding component supply tape from which the last electronic component has been taken out, and "heading" for sending the leading component of the component supply tape supplied subsequently to the component removal position. Is done. Since it is necessary to detect the presence or absence of a component in the storage section of the component supply tape at the time of processing associated with such reel replacement, a tape feeder provided with a component detection sensor for detecting the presence or absence of a component has been known conventionally. (See, for example, Patent Documents 1 and 2). In the prior art shown in these patent document examples, the presence or absence of a component in the storage portion of the component supply tape is determined by an optical sensor disposed in the transport path of the component supply tape and provided with a light emitting portion and a light receiving portion.

Japanese Patent Application Publication No. 2005-539370 JP, 2015-76447, A

  However, the prior art in which the presence or absence of parts is detected by the optical sensor, including the above-described prior art, has the following problems. That is, the types and sizes of parts to be supplied by the tape feeder are various, and a large number of paper tapes for small parts, embossed tapes for storing large parts, etc. There is a kind of. For this reason, the tape feeder is required to have versatility that can supply these various types of component supply tapes.

  However, when using the optical sensor to detect the presence or absence of parts in the storage unit using multiple types of component supply tapes containing parts of different types and sizes, the following problems have been encountered with regard to part detection accuracy: There is. That is, when a large number of component supply tapes are used, the thickness of the component supply tapes varies depending on the type of the components, so the distance between the light emitting unit and the light receiving unit in the optical sensor is the maximum thickness such as embossed tape It is inevitable to set as a target for component supply tapes. For this reason, in the case of using a thin component supply tape containing minute components, the position in the thickness direction of the component supply tape in the optical sensor is not stable, and as a result, the component detection accuracy becomes unstable. was there.

  Therefore, the present invention is a component supply apparatus capable of stably detecting the presence or absence of a component in the storage unit regardless of the type and thickness of the component to be supplied, the type of component supply tape for storing the component, and the difference in tape thickness. And a component mounting device and a component detection sensor.

  The component supply apparatus according to the present invention is a component supply apparatus which conveys a component supply tape storing components in a storage section to a component removal position and supplies components stored in the storage section to a component mounting apparatus, A main body provided with a conveyance path for guiding the component supply tape to the removal position, and the component supply tape in the conveyance path is transported toward the component removal position to position the storage portion at the component removal position And a component detection sensor disposed on the transport path upstream of the component removal position and having a component detection unit for detecting a component stored in the storage unit, and at least the transfer The upstream portion adjacent to the upstream side of the component detection unit is a guide surface for guiding the lower surface of the component supply tape, and a portion of the maximum thickness used in the component supply device from the guide surface. And an opposing ceiling surface at a position separated upward by a dimension larger than the thickness of the supply tape, and the component detection sensor constitutes a part of the transport path and has an upstream inlet and a downstream outlet. A passage, an upper portion forming a ceiling of the passage, and a partial guide surface supporting a lower surface of at least one side of the component supply tape in the passage, at least a portion of the partial guide surface being the downstream It becomes an approach part which approaches the above-mentioned upper part gradually as it goes to.

  The component mounting apparatus according to the present invention is a component mounting apparatus for transporting a component supply tape storing components in a storage section to a component removal position, removing components from the storage section at the component removal position, and mounting the components on a substrate. A main body portion provided with a conveyance path for guiding the component supply tape to the component extraction position, and the component supply tape in the conveyance path is conveyed toward the component extraction position and the storage portion is the component extraction position And a mounting head for taking out a component from the storage unit positioned at the component removal position and mounting the component on the substrate, and arranged in the transport path upstream from the component removal position, the storage unit A component detection sensor having a component detection unit for detecting a component stored in at least one of the transport paths, at least upstream of the component detection unit. The upstream portion in contact is a ceiling facing the guide surface guiding the lower surface of the component supply tape at a distance larger than the thickness of the maximum thickness component supply tape used in the component supply device from the guide surface A part having a surface, the part detection sensor constituting a part of the transport path and having an inlet on the upstream side and an outlet on the downstream side, an upper part constituting a ceiling of the path, and a part in the And a partial guide surface for supporting the lower surface of at least one side of the supply tape, wherein at least a portion of the partial guide surface is an approach portion which gradually approaches the upper portion as it goes downstream.

  The component detection sensor according to the present invention is a component detection sensor used in a component supply apparatus that conveys a component supply tape to a component removal position and supplies a component stored in the storage portion of the component supply tape to a component mounting apparatus. A part of a conveyance path for conveying the component supply tape to the part removal position, a passage having an inlet on the upstream side and an outlet on the downstream side, an upper portion forming a ceiling of the passage, and the inside of the passage And a partial guide surface for supporting the lower surface of at least one side of the component supply tape, wherein at least a portion of the partial guide surface is an approach portion gradually approaching the upper portion toward the downstream .

  According to the present invention, the presence or absence of a component in the storage portion can be stably detected regardless of the type and thickness of the component to be supplied, the type of component supply tape for storing the component, and the difference in tape thickness.

The perspective view of the components mounting apparatus in which the components supply apparatus of one embodiment of this invention is used Explanatory drawing of the components supply apparatus of one embodiment of this invention The perspective view which shows the external shape of the components detection sensor used for the components supply apparatus of one embodiment of this invention Structural explanatory drawing of the components detection sensor used for the components supply apparatus of one embodiment of this invention A perspective view of a component detection sensor used in a component supply device according to an embodiment of the present invention Explanatory drawing of the detailed structure of the components detection sensor used for the components supply apparatus of one embodiment of this invention Explanatory drawing of the component detection for the paper component supply tape by the component detection sensor used for the components supply apparatus of one embodiment of this invention Explanatory drawing of the components detection for the components supply tape of the embossing type | mold by the components detection sensor used for the components supply apparatus of one embodiment of this invention Explanatory drawing which shows the relationship between the component supply tape which becomes a detection target by the component detection sensor used for the components supply apparatus of one embodiment of this invention, and the opening of a light-shielding member. Explanatory drawing of the other Example of the components detection sensor used for the components supply apparatus of one embodiment of this invention Top view of component supply tape used in component supply apparatus according to one embodiment of the present invention

  Next, embodiments of the present invention will be described with reference to the drawings. First, the configuration and function of the component mounting apparatus 1 will be described with reference to FIG. In FIG. 1, a substrate transfer mechanism 2 is disposed on the upper surface of the base 1a in the X direction (substrate transfer direction). The substrate transfer mechanism 2 receives the substrate 3 which is the target of the component mounting operation from the upstream device (not shown), transports it to the mounting operation position in the component mounting device 1, and positions and holds it. A component supply unit 4 is disposed on both sides of the substrate transfer mechanism 2, and a plurality of tape feeders 5 are arranged in parallel in the component supply unit 4. The tape feeder 5 is a component supply device for supplying components to be mounted in the component mounting device 1, and the component supply tape 11 in which the component P is stored in the storage portion 20a shown in FIG. It has a function of conveying to the part removal position (see the part removal position 12 shown in FIG. 2).

  A Y-axis moving table 7 is disposed in the Y direction on the upper surfaces of a pair of frame members 6 disposed at both ends in the X direction in the component mounting apparatus 1. An X-axis movement table 8 is provided so as to be movable in the Y direction between the Y-axis movement tables 7, and the mounting head 9 is mounted on the X-axis movement table 8 so as to freely move in the X direction. The mounting head 9 is provided with a plurality of suction nozzles 9a on the lower surface, and by driving the Y-axis moving table 7 and the X-axis moving table 8, the mounting head 9 moves in the X and Y directions. Thus, the mounting head 9 takes out the component P from the storage portion 20 a positioned at the component take-out position 12 of the tape feeder 5 and mounts the component P on the substrate 3.

  That is, the component mounting apparatus 1 conveys the component supply tape 11 storing the component P in the storage unit 20a to the component removal position 12, removes the component P from the storage unit 20a at the component removal position 12, and is positioned by the substrate transport mechanism 2. It has a function of mounting on the substrate 3. In FIG. 11, the component supply tape 11 mainly includes a storage portion 20a for storing the component P and a base tape 20 in which a feed hole 20b for feeding the component supply tape 11 is formed. A cover tape 21 is attached to the upper surface and a bottom tape 21 a is attached to the lower surface of the base tape 20 in a range in which the storage portion 20 a is formed (see FIG. 7).

  Next, the configuration and function of the tape feeder 5 will be described with reference to FIG. In FIG. 2A, the tape feeder 5 is configured to include a main body 5a, a mounting portion 5b protruding downward from the lower surface of the main body 5a, and a cover 5c covering the side surface of the main body 5a. FIG. 2 (b) conceptually shows a front view of the tape feeder 5 with the cover 5 c removed. In a state where the lower surface of the main body portion 5a is mounted along a feeder base (not shown) of the component mounting device 1, the tape feeder 5 is fixedly mounted to the feeder base by the mounting portion 5b. The feeder control unit 19 incorporated for control is connected to a device control unit (not shown) of the component mounting device 1.

  Inside the main body portion 5a, a transport path 10 for guiding the component supply tape 11 taken into the tape feeder 5 is provided. The transport path 10 extends from an insertion port 10a which opens at the end on the upstream side (left side in FIG. 1) of the tape feeder 5 in the tape feeding direction and inserts the component supply tape 11 to the component removal position 12 by the mounting head 9 It is provided. The transport path 10 forms a tunnel-like elongated space by the groove formed in the main body 5a and the cover 5c covering the groove. On the upstream side close to the insertion opening 10a in the transport path 10, a feed unit 13 provided with a feed sprocket 13a rotationally driven by a feed motor (not shown) is disposed.

  The feeding unit 13 has a function of transporting the component supply tape 11 inserted into the transport path 10 from the insertion port 10 a toward the component removal position 12. When the component supply tape 11 is inserted into the transport path 10 from the insertion opening 10a, the feed hole 20b engages with the feed sprocket 13a, and by detecting this engagement, the feed motor is driven and the component supply tape 11 is downstream. To the tape.

  On the downstream side of the feed unit 13 in the transport path 10, a tape standby mechanism 14 provided with a tape stopper 14a is disposed. The tape stopper 14a is additionally added from the insertion port 10a in a state in which the tape feeding of the component supply tape 11 (hereinafter referred to as a leading tape) which has been sent in advance and which is the target of component removal is continued. It has a function of bringing the leading end of the inserted next component supply tape 11 (hereinafter referred to as the next tape) into contact and stopping. The tape standby mechanism 14 is provided with a sensor that detects the presence of the next tape that has stopped by coming into contact with the tape stopper 14a. By controlling the tape stopper 14a based on the detection result by this sensor, the tape standby mechanism 14 is Proper tape feeding of the next tape according to the condition is performed.

  A transport unit 16 having two sprockets, a first sprocket 16a and a second sprocket 16b driven by the same drive source, is disposed on the transport path 10 on the immediate upstream side of the component removal position 12. The transport unit 16 feeds the component supply tape 11 engaged with the first sprocket 16 a and the second sprocket 16 b by pitch feed to the storage portion 20 a of the component supply tape 11 transported toward the component removal position 12. Position at take-out position 12

  The upper portion of the transport unit 16 is covered by a cover member 17, and a cover tape processing unit 18 is disposed on the back surface of the cover member 17. The cover tape 21 is peeled off by the peeling claw of the cover tape processing unit 18 at the upstream side of the component take-out position 12, or the cover tape 21 is cut open by the cutting blade, and the component supply tape 11 is fed by the transport unit 16 The part P stored in the part 20a is in the state of being exposed. As a result, the component P can be picked up by the mounting head 9 provided in the component mounting apparatus from the storage unit 20 a sent to the component removal position 12.

  That is, the component mounting apparatus 1 inserts the component supply tape 11 storing the component P in the storage unit 20a from the insertion port 10a and conveys it in the transport direction, and takes out the component P stored in the storage unit 20a at the component removal position 12 Then, the substrate 3 is attached. Then, in the component mounting apparatus 1, the tape feeder 5 conveys the component supply tape 11 storing the component P in the storage unit 20a to the component removal position 12, and mounts the component P stored in the storage unit 20a at the component removal position 12 It functions as a component supply device for supplying the device 1.

  In the transport path 10 between the feeding unit 13 and the component removal position 12 downstream of the insertion port 10a, that is, the transport path 10 downstream of the feeding unit 13 and upstream of the component removal position 12 A component detection sensor 15 having a component detection unit 50 (see FIG. 6) for detecting the stored component P is disposed. The component detection sensor 15 is electrically connected to the feeder control unit 19 disposed inside the main body 5a, whereby the operation of the component detection sensor 15 and the acquisition of the component detection signal by the component detection sensor 15 are performed.

The transport path 10, Ru Tei opening the manual feed inserting opening 10b is provided on the upper surface of the main body portion 5a on the upstream side of the part detection sensor 15. The manual insertion slot 10 b is used in place of the insertion from the insertion slot 10 a when the component supply tape 11 is manually fed in the supply of the component supply tape 11 to the tape feeder 5.

  Next, the shape and configuration of the component detection sensor 15 will be described with reference to FIGS. 3, 4 and 5. In addition, although it is possible to select and use various things as a detection principle of the components P by the components detection part 50 (refer FIG. 6) used in the components detection sensor 15, In this Embodiment, a light emission part The example of the light transmission method of determining the presence or absence of the component P in the component supply tape 11 by irradiating the component supply tape 11 with light from the light source and receiving the light from the light emitting unit transmitted through the component supply tape 11 by the light receiving unit Do.

  As shown in FIG. 3, the component detection sensor 15 has a hollow, substantially rectangular sensor body 30 having side surfaces 30a, 30c, 30d, a guide side plate 32 and a bottom 30b (see FIG. 4) and an upper portion 30e. . On both side surfaces 30a and 30c in the tape running direction, a mounting portion 31 in which a screw fastening hole 31a for mounting and fixing is formed is fixed. When the component detection sensor 15 is fixedly attached to the main body 5a, the mounting bolt is inserted into the screw fastening hole 31a and screwed (see FIG. 6A).

  An inlet 30i for the component supply tape 11 (see FIG. 11) to be detected to enter (arrow a) on the side surface 30a on the upstream side, and a component supply tape 11 withdraws on the side surface 30c on the downstream side (arrow b) Outlets 30 j for opening are provided. Partial guide surfaces 33a and 32a for guiding the advance of the component supply tape 11 are provided on the upper surfaces of the guide portion 33 and the guide side plate 32 provided on the inner surface of the side surface 30d. A light receiving unit 40 for component detection is disposed on the upper surface of the upper portion 30e.

  As shown in FIG. 4, the light receiving unit 40 includes a sensor substrate 38 having light receiving sensors 39A and 39B mounted on the upper surface, and a light shielding member 35 mounted on the lower surface side of the sensor substrate 38. The light receiving unit 40 is provided with a wire 41 for signal transmission. In the light shielding member 35, slit portions 36 and 37 are formed corresponding to the positions of the light receiving sensors 39A and 39B. Here, the light receiving sensor 39A and the slit portion 36 detect a component P in the storage portion 20a, and the light receiving sensor 39B and the slit portion 37 detect a feed hole 20b in the component supply tape 11. The feed hole 20b is to be detected in order to reliably detect the position of the storage unit 20a in which the component P, which is the original detection purpose, is present.

  A rectangular opening 30f is formed in the upper portion 30e corresponding to the positions of the slits 36 and 37, and a light emitting unit for emitting light for component detection to the component supply tape 11 below the opening 30f. A light emitting surface 34 faces upward, and the light emitting portion 34 is provided with a wire 42 for supplying power for light emission. When the light receiving unit 40 in which the sensor substrate 38 and the light shielding member 35 are combined is disposed on the upper portion 30 e, the opening 30 f is located above the light emitting unit 34. Thus, the detection light emitted from the light emitting unit 34 is received by the light receiving sensors 39A and 39B via the slit units 36 and 37 (see also FIG. 6B).

  That is, the light receiving sensors 39A and 39B receive the light from the light emitting unit 34 that has passed through the component supply tape 11. The light shielding member 35 is disposed between the light emitting unit 34 and the component supply tape 11 and is disposed at a position overlapping the position through which the storage unit 20 a to be detected passes, from the light emitting unit 34 that has passed through the component supply tape 11. It has a form which has the slit parts 36 and 37 as an opening which lets light pass.

  The partial guide surfaces 32a and 33a for tape guidance provided on the upper surfaces of the guide side plate 32 and the guide portion 33 are respectively constituted by sloped slope guide surfaces 32a1 and 33a1 and horizontal guide surfaces 32a2 and 33a2 . A space passing through the inlet 30i formed on the side surface 30a of the sensor main body 30 and the outlet 30j formed on the side surface 30c is a passage R communicating with the conveyance path 10 to convey the component supply tape 11. That is, the component detection sensor 15 has a passage R which constitutes a part of the conveyance path 10 and has an inlet 30i on the upstream side and an outlet 30j on the downstream side, and an upper portion 30e which constitutes a ceiling of the passage R. Then, as described in detail in FIG. 6, partial guide surfaces 32 a and 33 a that support the lower surface of at least one side portion of the component supply tape 11 in the passage R are configured.

  FIG. 5 shows the outer shape of the guide side plate 32 in the unmounted state in a state where the light receiving unit 40 having the above-described configuration is mounted on the upper portion 30 e and the component detection sensor 15 is assembled. In this state, the wiring 41 conducted to the sensor substrate 38 is led to the upper surface of the bottom 30 b via the notch 30 n formed on the side surface 30 d. And it connects with the feeder control part 19 (refer FIG.2 (b)) through the notch part 30m formed in the side 30c with the wiring 42 provided in the light emission part 34 arrange | positioned at the bottom part 30b. In the present embodiment, the structure of the upper portion 30e, the guide portion 33 provided on the guide side plate 32, and the bottom portion 30b where the light emitting portion 34 is disposed is designed to be integrally molded by resin molding. The manufacture of the sensor main body 30 can be performed inexpensively and easily.

  Next, the detailed structure of the component detection sensor 15 will be described with reference to FIG. FIG. 6 (a) shows the side surface of the component detection sensor 15 in a state of being bolted to the main body 5a (see FIG. 2 (b)) of the tape feeder 5 via the mounting portion 31. A guide side plate 32 (see FIGS. 3 and 4) is attached. 6B shows a cross section (A-A cross section shown in FIG. 5) of a portion above the conveyance path 10 in a state where the component detection sensor 15 is attached to the main body 5a. The light emitted from the light emitting unit 34 in the component detecting unit 50 passes through the opening 30 f and is further received by the light receiving sensors 39 A and 39 B through the slit units 36 and 37.

  In FIG. 6A, the light emitting unit 34 and the light receiving unit 40 enclosed by a broken line frame constitute a component detection unit 50 for detecting the component P stored in the storage unit 20 a in the transport path 10. In the state where the component detection sensor 15 is fixedly arranged across the transport path 10 in the main body 5 a, the upstream transport path 10 communicates with the inlet 30 i of the sensor main body 30. As a result, a series of conveyance paths 10 for conveying the component supply tape 11 in the main body 5a including the passage R shown in FIG. 4 are formed.

  Of the transport path 10 described above, at least the upstream portion of the component detection sensor 15 provided with the component detection unit 50 is used by the tape feeder 5 from the guide surface 10c guiding the lower surface of the component supply tape 11 and the guide surface 10c. The ceiling surface 10d is opposed at a position separated upward by a dimension larger than the thickness of the component feeding tape 11 (see component feeding tape 11A shown in FIG. 8) having the largest thickness.

  Furthermore, an upstream portion adjacent to the upstream side of the detection position of the component by the component detection unit 50 inside the component detection sensor 15 supports the partial guide surfaces 32a and 33a that support and guide the lower surfaces of both sides of the component supply tape 11. Have. And a part of partial guide surfaces 32a and 33a serves as an approach part which approaches ceiling surface 30k of the undersurface of upper part 30e gradually as it goes to the lower stream. And the part which comprises these approach parts becomes a form including the slope which goes up toward downstream, as shown to slope guide surface 32a1, 33a1. The component detection unit 50 is configured to detect the component P stored in the storage unit 20a of the component supply tape 11 that has passed through the slope guide surfaces 32a1 and 33a1, which are the approach units, and approaches the ceiling surface 30k. .

  As described above, in the present embodiment, the detection of the presence or absence of the component P in the storage unit 20a of the component supply tape 11 by the component detection unit 50 of the component detection sensor 15 is performed by irradiating the light from the light emitting unit 34 Although the example which is performed by transmitted light detection which detects the light which penetrated tape 11 by light sensing sensor 39A was shown, various detection methods besides it can be used.

  For example, instead of receiving the light from the light emitting unit 34 transmitted through the storage unit 20a of the component supply tape 11, the presence or absence of the component P in the storage unit 20a is detected by detecting the reflected light from the component P in the storage unit 20a. It may be detected. In this case, a light projecting unit for emitting light is provided in the upper portion 30e, and the light is disposed so that the light reflected by the component P in the storage unit 20a can be received by the light receiving unit.

  Furthermore, it is also possible to use a magnetic sensor as a detection element in the component detection unit 50. That is, when the component P in the storage portion 20a has a metal portion and has a characteristic of reacting to magnetism, the magnetic sensor is disposed at a position corresponding to the opening 30f of the upper portion 30e. When the storage portion 20a that has passed the slope guide surfaces 32a1 and 33a1 approaches the magnetic sensor, a detection signal generated when the component P having a metal portion in the storage portion 20a approaches the magnetic sensor detects the inside of the storage portion 20a. The presence of the part P at is detected.

  That is, it is also possible to adopt as the component detection unit 50 one using a magnetic sensor that detects a change in magnetism, or the light from the light emission unit 34 that has passed through the component supply tape 11 or the light is emitted from the light emission unit 34 It is also possible to use an optical sensor that receives the light reflected by the component P by the light receiving sensor 39A. When such a method is adopted, the magnetic sensor or the light receiving sensor 39A is disposed on the side of the upper portion 30e which is the ceiling surface 30k.

  In the component detection sensor 15 shown in the present embodiment, both side portions of the component supply tape 11 are supported by the partial guide surfaces 32a and 33a, but the component is detected only by the partial guide surface 33a without the guide side plate 32. The lower surface of one side portion of the supply tape 11 may be supported. That is, the component detection sensor 15 of the present embodiment has the partial guide surfaces 32 a and 33 a that support and guide the lower surface of at least one side portion of the component supply tape 11. The component supply tape 11 to be targeted in the present embodiment has a plurality of feed holes 20b (see FIG. 11) for conveying the tape at a constant pitch, and the partial guide surfaces 32a and 33a are at least a plurality of feeds. The side having the hole 20b, that is, the side corresponding to the partial guide surface 33a fixed to the inside of the side surface 30d is guided (see FIGS. 7 and 8).

  Next, with reference to FIG. 7, an example of component detection for the component supply tape 11 made of a thin paper tape will be described. As shown in the cross section of FIG. 7B, the component supply tape 11 has a configuration in which the cover tape 21 and the bottom tape 21a are attached to the upper surface and the lower surface of the base tape 20 in which the storage portion 20a and the feed hole 20b are formed. The small part P is stored in the storage unit 20a.

  As shown in FIG. 7A, the component supply tape 11 transported along the guide surface 10c of the upstream transport path 10 enters the component detection sensor 15 from the entrance 30i, and as shown in FIG. 7B. The lower surface of both sides is supported and conveyed by the slope guide surfaces 32a1 and 33a1 and the horizontal guide surfaces 32a2 and 32a2. When the storage unit 20a to be inspected reaches the inspection position by the component detection unit 50 (FIG. 6A), the light emitted from the light emitting unit 34 and transmitted through the storage unit 20a is received through the slit unit 36. The presence or absence of the component P in the storage unit 20a is detected by receiving light.

  Thus, even in the case where a thin tape having a small thickness such as the component supply tape 11 is targeted, the component supply tape 11 introduced into the component detection sensor 15 has a slope having a shape having the above-described approach portion. Since the lower surface is supported and conveyed by the guide surface 33 a 1 and the horizontal guide surface 33 a 2, at the inspection position by the component detection unit 50, the storage unit 20 a to be inspected is at a position close to directly below the light receiving unit 40. Therefore, the transmitted light emitted from the light emitting unit 34 (FIG. 6) and transmitted through the storage portion 20a and the feed hole 20b can be stably received by the light receiving sensors 39A and 39B, and the presence or absence of the part P in the storage portion 20a It is possible to correctly detect the position of the hole 20b.

  Next, with reference to FIG. 8, an example of component detection for the component supply tape 11 </ b> A having a large thickness by storing the component P in the embossed portion will be described. As shown in the cross section of FIG. 8B, the component supply tape 11A has a configuration in which the cover tape 21 is attached to the upper surface of the storage portion 20a in which the embossed portion 20AE projecting to the lower surface side and the feed hole 20b are formed. A large part P is stored in the storage portion 20a.

  As shown in FIG. 8A, the component supply tape 11A transported along the emboss portion 20AE along the guide surface 10c of the transport path 10 on the upstream side enters the component detection sensor 15 from the entrance 30i, As shown in FIG. 8 (b), the lower surface of both sides is supported and conveyed by the slope guide surfaces 32a1 and 33a1 and the horizontal guide surfaces 32a2 and 32a2. At this time, the embossed portion 20AE floats up from the guide surface 10c and passes through a space sandwiched between the partial guide surface 32a and the partial guide surface 33a. When the storage unit 20a to be inspected reaches the inspection position by the component detection unit 50 (FIG. 6A), the light emitted from the light emitting unit 34 and transmitted through the embossed unit 20AE and the storage unit 20a passes through the slit unit 36. By receiving light by the light receiving sensor 39A, the presence or absence of the component P in the storage portion 20a inside the emboss portion 20AE is detected.

  As described above, even in the case where an embossed tape having a large thickness such as the component supply tape 11A is targeted, the component supply tape 11A introduced into the component detection sensor 15 has a shape having the above-described approach portion. Since the lower surfaces of both side end portions are supported and conveyed by the slope guide surface 33a1 and the horizontal guide surface 33a2, the storage portion 20a inside the embossed portion 20AE to be inspected is the light receiving unit 40 at the inspection position by the component detection unit 50. It is located close to the bottom of Therefore, the transmitted light which is emitted from the light emitting unit 34 (FIG. 6) and transmitted through the emboss unit 20AE and the storage unit 20a and the feed hole 20b can be stably received by the light receiving sensor 39A and the light receiving sensor 39B. It is possible to correctly detect the presence or absence of the part P in the storage portion 20a of the portion 20AE and the position detection of the feed hole 20b.

  As described above, in the present embodiment, in the configuration in which the component detection unit 50 disposed in the conveyance path 10 optically detects the component P stored in the storage unit 20 a, at least the component detection unit 50 of the conveyance path 10 In the upstream part, a guide surface 10c for guiding the lower surface of the component supply tape 11 or the component supply tape 11A and a distance larger than the thickness of the maximum thickness component supply tape used in the tape feeder 5 from the guide surface 10c. A configuration is adopted in which the ceiling surface 10d facing each other at the position is adopted, and it is possible to make the component supply tape with the largest thickness the detection target.

  Further, partial guide surfaces 32a and 33a supporting the lower surface of at least one side of the component supply tape 11 or the component supply tape 11A are provided upstream of the detection position of the component by the component detection unit 50. Slope guide surfaces 32a1 and 33a1 are provided on parts of the guide surfaces 32a and 33a to approach the ceiling surface 30k as they go downstream. As a result, when the component supply tape of a thin type such as a paper tape for small components is targeted, the component supply tape is made to approach the light receiving unit 40 of the component detection unit 50 by the slope guide surfaces 32a1 and 33a1. There is.

  By adopting such a configuration, a plurality of types of component supply tapes having different thicknesses, such as a paper tape for small components (see component supply tape 11) and an embossed tape for large components (see component supply tape 11A) Even in this case, the presence or absence of the component P in the storage unit 20a can be stably detected regardless of the type and thickness of the component to be supplied, the type of component supply tape for storing the component, and the difference in tape thickness. Can.

  Next, the relationship between the component supply tape 11 (11A) to be detected by the component detection sensor 15 and the opening of the light shielding member 35 will be described with reference to FIG. FIG. 9 shows the shape, size and position of the storage portion 20a and the feed hole 20b formed on the component supply tape 11 (component supply tape 11A) of a standard width (8 mm) targeted by the tape feeder 5 shown in this embodiment. Is schematically shown. Here, for a plurality of types (3 types here) of parts P to be supplied by the parts supply tape 11 (parts supply tape 11A), the nominal size of each and the planar dimensions (pocket size of the storage portion 20a for the parts) )It is shown.

  That is, the dimension of the component P in the conveyance direction of the component supply tape 11 is W1, and the dimension in the width direction of the component supply tape 11 is rectangular. For example, the part P1 (W1 = 1.6 mm, W2 = 3.8 mm) of nominal size (3816) corresponds to the pocket size storage portion 20a (1) of (1.90 × 4.10 mm). The part size P2 (W1 = 0.3 mm, W2 = 0.6 mm) of the nominal size (0603) corresponds to the storage portion 20a (2) of the pocket size of (0.38 × 0.68 mm). The part P3 (W1 = 0.2 mm, W2 = 0.4 mm) of the size (0402) corresponds to the pocket-sized storage portion 20a (3) of (0.24 × 0.45 mm). The feed hole 20b is provided at a position 1.75 mm from the side end surface of the component supply tape 11 with a diameter of 1.51.50 mm.

  The light shielding member 35 is disposed between the light emitting unit 34 and the component supply tape 11 (11A), and in this state, is formed at a position overlapping the position through which the storage unit 20a of the component supply tape 11 passes. (See Figure 4). The light shielding member 35 is provided with slit portions 36 and 37 as openings through which light from the light emitting portion 34 which has passed through the component supply tape 11 passes. The slit portion 37 is an opening for detecting the feed hole 20 b, and has a slit size of 0.1 × 2.0 mm and is formed at a position overlapping the feed hole 20 b.

  The slit portion 36 is an opening for detecting the storage portion 20a, and has a rectangular shape having a dimension D1 in the conveyance direction of the component supply tape 11 and a dimension D2 in the width direction of the component supply tape 11. In the present embodiment, as a shape of the slit portion 36 which is an opening for detecting a component provided in the light shielding member 35, an elongated rectangular shape having a dimension D1 in the transport direction smaller than a dimension D2 in the width direction of the component supply tape 11 Slit is used.

  Describing in more detail the shape of the slit portion 36, the dimension D1 (0.1 mm) in the transport direction of the slit portion 36 is the smallest size component (here, nominal size (0402)) supplied by the component supply tape 11 having a width of 8 mm. The dimension is set to be narrower than the dimension W1 (0.2 mm) in the width direction of the component supply tape 11 of the component P3).

  The dimension D2 in the width direction of the component supply tape 11 of the slit portion 36 is the width direction of the component supply tape 11 of the component of the smallest size (here, the component P3 of nominal size (0402)) supplied by the component supply tape 11. The dimension is set to be larger than the dimension W2 (0.4 mm). Specifically, it is preferable to set the dimension D2 in the width direction of the component supply tape 11 of the slit portion 36 in the range of 0.6 mm to 2.0 mm. The recommended size of the dimension D2 of the slit portion 36 in the present embodiment is 1.0 mm. In addition, since the nominal size is 0201 (W1 = 0.2 mm, W2 = 0.1 mm) at the time of filing of the present application, the smallest size component supplied by the component supply tape of 4 mm width is used by the component supply tape of 4 mm width The dimensions of the slit portion are as follows: D1 is 0.05 mm to 0.08 mm, D2 is 0.5 mm to 1.0 mm.

  The technical significance of setting the size of the slit portion 36 formed in the light shielding member 35 as described above in the component detection unit 50 provided in the component detection sensor 15 having the above-described configuration will be described. In the tape feeder 5 shown in the present embodiment, as a method of reel replacement at the time of supplying the component supply tape 11, when the component of the preceding component supply tape (preceding tape) runs out, the subsequent component supply tape (next tape) The so-called auto loading method is used in which the. In this method, the newly supplied component supply tape 11 is tape-fed along the transport path 10 by the feed unit 13, and the feed holes 20b of the component supply tape 11 are engaged with the sprockets of the transport unit 16. .

  However, when detecting the presence or absence of a component in the component supply tape 11 by the component detection sensor 15 in such an auto loading method, the following problems occur. That is, in the auto loading method, the position of the component supply tape 11 that has reached the component detection sensor 15 is not achieved because the subsequent component supply tape 11 is only pushed and moved by the feeding unit 13 from the upstream side and accurate position holding is not performed. And attitude is not always stable. For this reason, the positional relationship between the storage portion 20a in which the component is stored in the component supply tape 11 and the component detection unit 50 is not in a form suitable for component detection, and stable component detection may not be possible.

  Even in such a case, by setting the size of the slit portion 36 formed in the light shielding member 35 to satisfy the relationship as shown in FIG. 9, the position in the width direction of the component supply tape 11 is unstable. Even in the above state, the storage portion 20a can be positioned so as to always overlap the width range of the slit portion 36. Therefore, the detection light for detecting the presence or absence of the component P in the storage portion 20a can be reliably transmitted through the slit portion 36, and stable component detection can be performed.

  In the present embodiment, a component detection sensor having a simple configuration as shown in FIG. 10 may be used instead of a single unitized component detection sensor as the component detection sensor 15. In FIGS. 10A and 10B, the main body portion 5a constituting the frame portion of the tape feeder 5 is provided with a lower portion 5d and an upper portion 5e extending in the lateral direction and opposed to each other in the vertical direction. Between the lower portion 5d and the upper portion 5e, there is a transport path 10 for transporting the component supply tape 11 (see FIG. 11) supplied by the main body 5a or the component supply tape 11A.

  The upper surface of the lower portion 5d is a guide surface 10c for guiding the lower surface of the component supply tape 11 when transporting the component supply tape 11 or the component supply tape 11A, and the lower surface of the upper portion 5e is supplied from the guide surface 10c by the main portion 5a. It is the ceiling surface 10d which faces at a position separated upward by a dimension larger than the thickness of the component feeding tape 11 of the maximum thickness. The guide surface 10c and the ceiling surface 10d have the same functions as the guide surface 10c and the ceiling surface 10d in the conveyance path 10 shown in FIG.

  On the upper surface of the lower portion 5d, a partial guide surface 42a including a slope guide surface 42a1 and a horizontal guide surface 42a2 is provided along the inner side surface of the main body 5a. Similar to the partial guide surface 32a in FIG. 6, the partial guide surface 42a has a function of guiding the lower surface of the component supply tape 11 or the component supply tape 11A, and moves to the ceiling surface 10d as it goes downstream from the guide surface 10c. It consists of a slope guide surface 42a1 gradually approaching and a horizontal guide surface 42a2. In the example shown here, the partial guide surface 42a guides the side portion of the component supply tape 11 or the side portion of the component supply tape 11A having the plurality of feed holes 20b.

  The portion corresponding to the horizontal guide surface 42a2 is an opening 5f in which the upper portion 5e and the lower portion 5d are cut. The light emitting unit 34 having the same function as the component detecting unit 50 in FIG. 6 is disposed below the opening 5 f, and the light receiving unit 40 A is disposed above the opening 5 f. The light emitting unit 34 and the light receiving unit 40A constitute a component detection unit 50A, and have the same function as the component detection unit 50 in FIG. That is, the light receiving unit 40A receives light emitted from the light emitting unit 34 and transmitted through the storage unit 20a of the component supply tape 11 or the component supply tape 11A, as in the examples shown in FIGS. 7 and 8. The presence or absence of the component P in the storage unit 20a is detected.

  Although a specific embodiment of the present invention has been described by using an auto-loading type component feeding device as an example, component feeding devices other than the auto loading type, that is, transport the component feeding tape 11 inserted from the insertion port 10a of the transport path 10 The present invention can also be applied to a component supply device that does not have the feeding unit 13 that feeds the unit 16 and the tape standby mechanism 14.

  The component supply device, the component mounting device, and the component detection sensor according to the present invention determine the presence or absence of a component in the storage section regardless of the type and thickness of the component to be supplied, the type of component supply tape for storing the component, and the tape thickness. It has the effect of being able to detect stably and is useful in the component mounting field where the components stored in the component supply tape are taken out and mounted on the substrate.

DESCRIPTION OF SYMBOLS 1 component mounting apparatus 3 board | substrate 4 components supply part 5 tape feeder 5a main-body part 10 conveyance path 10a insertion port 10c guide surface 10d ceiling surface 11,11A component supply tape 12 parts extraction position 13 sending part 15 parts detection sensor 16 conveyance part 20a storage Section 20b Feed hole 30 Sensor body 30b Bottom 30e Top 30i Entrance 30j Exit 30k Ceiling surface 32 Guide side plate 32a Partial guide surface 32a1 Slope guide surface 33a Partial guide surface 33a1 Slope guide surface 34 Light emitting part 36 Slit part 37 Slit part 39A, 39B Light receiving sensor 40 Light receiving unit 50 Parts detection unit P Parts R Passage

Claims (17)

A component supply apparatus for conveying a component supply tape storing components in a storage unit to a component removal position and supplying components stored in the storage unit to a component mounting apparatus,
A main body provided with a transport path for guiding the component supply tape to the component removal position;
A transport unit configured to transport the component supply tape in the transport path toward the component removal position to position the storage portion at the component removal position;
A component detection sensor disposed on the transport path upstream of the component removal position and having a component detection unit for detecting a component stored in the storage unit;
The upstream portion adjacent to at least the upstream side of the component detection unit in the transport path is a guide surface for guiding the lower surface of the component supply tape, and a component supply tape of maximum thickness used in the component supply device from the guide surface. Having an opposing ceiling surface at a position spaced upward by a dimension larger than the thickness;
The component detection sensor is
A path which constitutes a part of the transport path and has an upstream inlet and a downstream outlet, an upper portion forming a ceiling of the aisle, and a lower surface of at least one side of the component supply tape in the aisle Have a partial guide surface
The parts feeding device according to claim 1, wherein at least a part of the partial guide surface is an approach part that gradually approaches the upper part as it goes downstream.   The component supply device according to claim 1, wherein the component supply tape has a plurality of feed holes for transporting the tape at a constant pitch, and the partial guide surface guides at least a side portion having the plurality of feed holes.   The parts supply apparatus according to claim 1, wherein a part of the part guide surface that constitutes the approach part includes a slope.   The component supply apparatus according to any one of claims 1 to 3, wherein the component detection unit detects a component of the component supply tape which has passed through the approach unit and approaches the upper portion.   The component detection unit is a magnetic sensor that detects a change in magnetism, or an optical sensor that receives light from a light emission unit transmitted through the component supply tape or light emitted from a light projection unit and reflected by the component by a light reception unit. The component supply device according to claim 4, wherein the magnetic sensor or the light receiving unit is disposed on the ceiling surface side. A component mounting apparatus for transporting a component supply tape storing components in a storage unit to a component removal position, removing components from the storage unit at the component removal position, and mounting the components on a substrate,
A main body provided with a transport path for guiding the component supply tape to the component removal position;
A transport unit configured to transport the component supply tape in the transport path toward the component removal position to position the storage portion at the component removal position;
A mounting head for removing components from the storage section positioned at the component removal position and mounting the components on the substrate;
A component detection sensor disposed on the transport path upstream of the component removal position and having a component detection unit for detecting a component stored in the storage unit;
The upstream portion adjacent to at least the upstream side of the component detection unit in the transport path is a guide surface for guiding the lower surface of the component supply tape, and a component supply tape of maximum thickness used in the component supply device from the guide surface. Having an opposing ceiling surface at a position spaced upward by a dimension larger than the thickness;
The component detection sensor is
A path which constitutes a part of the transport path and has an upstream inlet and a downstream outlet, an upper portion forming a ceiling of the aisle, and a lower surface of at least one side of the component supply tape in the aisle Have a partial guide surface
The component mounting device, wherein at least a part of the partial guide surface is an approach portion which gradually approaches the upper portion as it goes downstream.   The component mounting apparatus according to claim 6, wherein the component supply tape has a plurality of feed holes for transporting the tape at a constant pitch, and the partial guide surface guides at least a side portion having the plurality of feed holes.   The component mounting device according to claim 6, wherein a portion of the partial guide surface that constitutes the approach portion includes a slope.   The component mounting apparatus according to any one of claims 6 to 8, wherein the component detection unit detects a component of the component supply tape which has passed through the approach unit and approaches the upper portion.   The component detection unit is a magnetic sensor that detects a change in magnetism, or an optical sensor that receives light from a light emission unit transmitted through the component supply tape or light emitted from a light projection unit and reflected by the component by a light reception unit. 10. The component mounting apparatus according to claim 9, wherein the magnetic sensor or the light receiving unit is disposed on the ceiling surface side. A component detection sensor for use in a component supply apparatus, which conveys a component supply tape to a component removal position and supplies components stored in the storage portion of the component supply tape to a component mounting apparatus,
A part of a conveyance path for conveying the parts supply tape to the parts removal position, a passage having an inlet on the upstream side and an outlet on the downstream side, an upper part forming a ceiling of the passage, and parts in the passage A partial guide surface for supporting the lower surface of at least one side of the supply tape;
The component detection sensor, wherein at least a portion of the partial guide surface is an approach portion that gradually approaches the upper portion as it goes downstream.   The component detection sensor according to claim 11, wherein the component supply tape has a plurality of feed holes for transporting the tape at a constant pitch, and the partial guide surface guides at least a side portion having the plurality of feed holes.   The part detection sensor according to claim 11, wherein a portion of the partial guide surface that constitutes the approach portion includes a slope. And a component detection unit that detects components stored in the storage unit.
The component detection sensor according to any one of claims 11 to 13, wherein the component detection unit is disposed downstream of the approach unit.   The part detection sensor according to claim 14, wherein the part detection unit is a magnetic sensor that detects a change in magnetism, and the magnetic sensor is disposed on the top.   The component detection unit is an optical sensor that receives light from the light emission unit that has passed through the component supply tape or light that is emitted from the light projection unit and reflected by the component by the light reception unit, and the light reception unit is at the top The part detection sensor according to claim 14, wherein the part detection sensor is arranged. And a bottom portion on which the light emitting unit is disposed,
The component detection sensor according to claim 16, wherein the upper portion, the partial guide surface , and the bottom portion are integrally molded by resin molding.

Images