JP6596657B2 - Component supply device and component mounting device - Google Patents

Description

  The present invention relates to a component supply device that supplies a component by conveying a component supply tape that stores the component in a storage portion, and a component mounting device that mounts the supplied component on a substrate.

  As a component supply device in a component mounting apparatus that mounts components on a substrate, a tape feeder that supplies components in the form of a component supply tape stored in a pocket-shaped storage unit is often used. The component supply tape is set in a state in which the component supply tape is wound and accommodated on the reel to a predetermined length, and the electronic component is taken out by the mounting head of the component mounting device from the component supply tape conveyed to the component pickup 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 by setting a new reel and additionally supplying the next component supply tape.

  When this reel is replaced, “empty tape discharge” for sending out the preceding component supply tape from which the last electronic component has been taken out, and “cueing out” for sending the leading component of the component supply tape to be supplied subsequently to the component pickup position Is done. When processing such reel replacement, it is necessary to detect the presence or absence of a component in the component supply tape storage unit, and thus a tape feeder having a component detection sensor for detecting the presence or absence of a component has been known. (For example, refer to Patent Documents 1 and 2). In the prior arts 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 that is disposed in the conveyance path of the component supply tape and includes a light emitting portion and a light receiving portion.

JP 2005-539370 A Japanese Patent Laying-Open No. 2015-76447

  However, the conventional techniques for detecting the presence / absence of a component using an optical sensor, including the above-described prior art examples, have the following drawbacks. That is, there are various types and sizes of parts to be supplied by the tape feeder, and there are many types of tapes used as part carriers in parts supply tapes, such as paper tape for small parts and embossed tape for storing large parts in the embossed part. There are different types. For this reason, the tape feeder is required to be versatile so that these various types of component supply tapes can be supplied.

  However, when detecting the presence or absence of a component in the storage unit using an optical sensor for a variety of component supply tapes that store components of different types and sizes, the following issues regarding component detection accuracy: There is. In other words, when multiple types of component supply tapes are targeted, the thickness of the component supply tape varies greatly depending on the type of component, so the distance between the light emitting part and the light receiving part in the optical sensor is the maximum thickness such as embossed tape. It must be set for the parts supply tape. For this reason, when a thin component supply tape containing minute components is targeted, the position of the component supply tape in the optical sensor in the thickness direction is not stable, resulting in unstable component detection accuracy. was there.

  Accordingly, the present invention provides a component supply device that can stably detect 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 that stores the component, and the difference in tape thickness. And it aims at providing a component mounting apparatus.

  The component supply device of the present invention is a component supply device that conveys a component supply tape storing a component in a storage unit to a component pick-up position and supplies the component stored in the storage unit to a component mounting device. 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 conveyed toward the component extraction position to position the storage section at the component extraction position. And a component detection unit that detects a component stored in the storage unit in the conveyance path upstream of the component extraction position, and at least an upstream portion of the component detection unit in the conveyance path is A guide surface that guides the lower surface of the component supply tape, and a dimension larger than the maximum thickness of the component supply tape used by the component supply device from the guide surface. And a partial guide surface that supports the lower surface of at least one side of the component supply tape upstream of the component detection position by the component detection unit. At least a part of the partial guide surface is an approach portion that approaches the ceiling surface as it goes downstream.

  The component mounting apparatus of the present invention is a component mounting apparatus that transports a component supply tape storing components in a storage unit to a component extraction position, and extracts the component from the storage unit at the component extraction position and mounts it on the board. A main body portion provided with a conveyance path for guiding the component supply tape to the component extraction position, and conveying the component supply tape in the conveyance path toward the component extraction position to extract the storage section A transport unit positioned at a position, a component detection unit that detects a component stored in the storage unit in the transport path upstream of the component extraction position, and a component from the storage unit positioned at the component extraction position. A mounting head for taking out and mounting on the substrate; and at least an upstream portion of the component detection unit in the transport path is a lower surface of the component supply tape A guide surface for guiding, and a ceiling surface facing the guide surface at a position separated from the guide surface by a dimension larger than the thickness of the maximum thickness component supply tape used in the component supply device, and further detecting the component A part guide surface that supports the lower surface of at least one side part of the component supply tape upstream of the position where the part is detected by the part, and at least part of the part guide surface goes to the ceiling surface as it goes downstream; It is an approaching section that approaches.

  According to the present invention, it is possible to stably detect the presence / absence of a component in the storage unit regardless of the difference in the type and thickness of the component to be supplied, the type of component supply tape that stores the component, and the tape thickness.

The perspective view of the component mounting apparatus with which the component 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 component detection sensor used for the component supply apparatus of one embodiment of this invention Structure explanatory drawing of the component detection sensor used for the component supply apparatus of one embodiment of this invention The perspective view of the components detection sensor used for the components supply apparatus of one embodiment of this invention Explanatory drawing of the detailed structure of the component detection sensor used for the component supply apparatus of one embodiment of this invention Explanatory drawing of the component detection which made object the paper component supply tape by the component detection sensor used for the component supply apparatus of one embodiment of this invention Explanatory drawing of the component detection for the embossed type component supply tape by the component detection sensor used for the component supply apparatus of one embodiment of this invention Explanatory drawing which shows the relationship between the component supply tape used as the detection target by the component detection sensor used for the component supply apparatus of one embodiment of this invention, and the opening of a light shielding member. Explanatory drawing of the other Example of the component detection sensor used for the component supply apparatus of one embodiment of this invention The top view of the component supply tape used for the component supply apparatus of one embodiment of this invention

  Next, embodiments of the present invention will be described with reference to the drawings. First, the configuration and functions of the component mounting apparatus 1 will be described with reference to FIG. In FIG. 1, a substrate transport mechanism 2 is disposed on the upper surface of a base 1a in the X direction (substrate transport direction). The board transport mechanism 2 receives a board 3 to be subjected to component mounting work from an upstream device (not shown), transports it to the mounting work position in the component mounting apparatus 1 and positions and holds it. Component supply units 4 are arranged on both sides of the substrate transport 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 that supplies components to be mounted in the component mounting apparatus 1, and a component supply tape 11 in which the component P is stored in the storage portion 20a shown in FIG. It has a function of transporting to a component removal position (see the component removal position 12 shown in FIG. 2).

  On the upper surface of the pair of frame members 6 disposed at both ends in the X direction in the component mounting apparatus 1, Y-axis moving tables 7 are disposed in the Y direction, respectively. An X-axis moving table 8 is installed between the Y-axis moving table 7 so as to be movable in the Y direction, and a mounting head 9 is mounted on the X-axis moving table 8 so as to be movable in the X direction. The mounting head 9 includes a plurality of suction nozzles 9a on the lower surface, and the mounting head 9 moves in the XY directions by driving the Y-axis moving table 7 and the X-axis moving table 8. Thereby, the mounting head 9 takes out the component P from the storage portion 20 a positioned at the component pickup position 12 of the tape feeder 5 and mounts it on the substrate 3.

  That is, the component mounting apparatus 1 transports the component supply tape 11 storing the component P in the storage unit 20 a to the component extraction position 12, extracts the component P from the storage unit 20 a in the component extraction 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 20 a for storing the component P and a base tape 20 in which a feed hole 20 b for feeding the component supply tape 11 is formed. A cover tape 21 is adhered to the upper surface and a bottom tape 21a is adhered to the lower surface of the base tape 20 where the storage portion 20a is formed (see FIG. 7).

  Next, the configuration and function of the tape feeder 5 will be described with reference to FIG. 2A, the tape feeder 5 includes a main body 5a, a mounting portion 5b that protrudes downward from the lower surface of the main body 5a, and a cover 5c that covers the side of the main body 5a. FIG. 2B conceptually shows a front view of the tape feeder 5 with the cover 5c removed. In a state where the lower surface of the main body portion 5a is mounted along the feeder base (not shown) of the component mounting apparatus 1, the tape feeder 5 is fixedly mounted on the feeder base by the mounting portion 5b and the tape feeder 5 feeds the tape. A 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 5a, a conveyance path 10 for guiding the component supply tape 11 taken into the tape feeder 5 is provided. The conveyance path 10 extends from an insertion port 10a that opens at an upstream end (left side in FIG. 1) of the tape feeder 5 in the tape feeding direction and inserts the component supply tape 11 to a component removal position 12 by the mounting head 9. Is provided. The conveyance path 10 forms a tunnel-like long and narrow space by a groove formed in the main body 5a and a cover 5c covering the groove. A feed unit 13 including a feed sprocket 13a that is rotationally driven by a feed motor (not shown) is disposed on the upstream side of the conveyance path 10 near the insertion port 10a.

  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 take-out position 12. When the component supply tape 11 is inserted into the transport path 10 from the insertion port 10a, the feed hole 20b engages with the feed sprocket 13a. By detecting this engagement, the feed motor is driven and the component supply tape 11 is moved downstream. The tape is fed to

  A tape standby mechanism 14 having a tape stopper 14 a is disposed on the downstream side of the feeding section 13 in the transport path 10. The tape stopper 14a is additionally added from the insertion opening 10a in a state where the tape feeding of the component supply tape 11 (hereinafter referred to as the preceding tape) that has been fed in advance and is the target of component removal is continued. It has a function of abutting and stopping the tip of the inserted next component supply tape 11 (hereinafter referred to as the next tape). The tape standby mechanism 14 includes a sensor that detects the presence of the next tape that has stopped in contact with the tape stopper 14a. By controlling the tape stopper 14a based on the detection result of the sensor, the tape standby mechanism 14 Appropriate tape feeding of the next tape according to the state is performed.

  A transport unit 16 having two sprockets of a first sprocket 16a and a second sprocket 16b driven by the same drive source is disposed on the upstream side of the transport path 10 in the immediate vicinity of the component pick-up position 12. The conveyance unit 16 pitch-feeds the component supply tape 11 engaged with the first sprocket 16a and the second sprocket 16b, so that the storage unit 20a of the component supply tape 11 conveyed toward the component extraction position 12 Position at the removal position 12.

  An upper portion of the transport unit 16 is covered with a cover member 17, and a cover tape processing unit 18 is disposed on the back surface of the cover member 17. The component supply tape 11 which is fed by the transport unit 16 is stored on the upstream side of the component take-out position 12 by peeling the cover tape 21 by the peeling claw of the cover tape processing unit 18 or by cutting the cover tape 21 by a cutting blade. The part P stored in the portion 20a is 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 portion 20a sent to the component pickup position 12.

  That is, the component mounting apparatus 1 inserts the component supply tape 11 storing the component P in the storage portion 20a from the insertion port 10a and transports it in the transport direction, and takes out the component P stored in the storage portion 20a at the component takeout position 12. Is attached to the substrate 3. In the component mounting apparatus 1, the tape feeder 5 transports the component supply tape 11 storing the component P in the storage unit 20 a to the component extraction position 12, and mounts the component P stored in the storage unit 20 a at the component extraction position 12. It functions as a component supply device that supplies the device 1.

  In the conveyance path 10 between the feeding section 13 downstream of the insertion port 10a and the component removal position 12, that is, in the conveyance path 10 downstream of the feeding section 13 and upstream of the component extraction position 12, the storage section 20a 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 a feeder control unit 19 disposed inside the main body 5a, whereby the component detection sensor 15 is operated and the component detection signal is taken in by the component detection sensor 15.

  The conveyance path 10 is provided with a manual insertion slot 10b that opens on the upper surface of the main body 5a on the upstream side of the component detection sensor 15. The manual insertion slot 10b is used in place of the insertion from the insertion slot 10a when supplying the component supply tape 11 by manual feeding 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. Note that various components can be selected and used as the detection principle of the component P by the component detection unit 50 (see FIG. 6) used in the component detection sensor 15, but in the present embodiment, the light emitting unit Explains an example of a light transmission method in which the component supply tape 11 is irradiated with light, and the light receiving unit receives light from the light emitting unit that has passed through the component supply tape 11 to determine the presence or absence of the component P in the component supply tape 11. To do.

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

  An inlet 30i through which the component supply tape 11 (see FIG. 11) to be detected enters (arrow a) enters the upstream side surface 30a, and the component supply tape 11 exits from the downstream side surface 30c (arrow b). An outlet 30j is provided to open. Partial guide surfaces 33a and 32a for guiding the progress 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 39 </ b> A and 39 </ b> B mounted on the upper surface, and a light shielding member 35 attached to the lower surface side of the sensor substrate 38. The light receiving unit 40 is provided with a signal transmission wiring 41. 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 are targeted for detection of the component P in the storage portion 20a, and the light receiving sensor 39B and the slit portion 37 are targeted for detection of the feed hole 20b in the component supply tape 11. The reason why the feed hole 20b is a detection target is to reliably detect the position of the storage portion 20a where 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 slit portions 36 and 37, and a light emitting unit that irradiates the component supply tape 11 with light for component detection below the opening 30f. 34 is arranged with the light emitting surface facing upward, and the light emitting portion 34 is provided with a wiring 42 for supplying power for light emission. In a state where the light receiving unit 40 in which the sensor substrate 38 and the light shielding member 35 are combined is disposed in the upper portion 30e, the opening 30f is located above the light emitting portion 34. Thereby, the detection light emitted from the light emitting unit 34 is received by the light receiving sensors 39A and 39B through the slits 36 and 37 (see also FIG. 6B).

  That is, the light receiving sensors 39 </ b> A and 39 </ b> B receive 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 so as to overlap the position through which the detection target storage unit 20a passes, and from the light emitting unit 34 that has passed through the component supply tape 11. It has the form which has the slit parts 36 and 37 as an opening which lets light pass.

  The tape guide partial guide surfaces 32a and 33a provided on the upper surfaces of the guide side plate 32 and the guide portion 33 are respectively composed of slope-shaped slope guide surfaces 32a1 and 33a1 and horizontal horizontal guide surfaces 32a2 and 33a2. . A space that passes 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 serves as a passage R that communicates with the conveyance path 10 and conveys the component supply tape 11. That is, the component detection sensor 15 includes a passage R that constitutes a part of the transport path 10 and has an upstream inlet 30i and a downstream outlet 30j, and an upper portion 30e that forms the ceiling of the passage R. As will be described in detail with reference to FIG. 6, the passage R has a configuration including partial guide surfaces 32 a and 33 a that support the lower surface of at least one side of the component supply tape 11.

  FIG. 5 shows an outer shape in which the guide side plate 32 is not mounted in a state where the light receiving unit 40 having the above-described configuration is mounted on the upper portion 30e and the component detection sensor 15 is assembled. In this state, the wiring 41 led to the sensor substrate 38 is guided to the upper surface of the bottom 30b via the notch 30n formed in the side surface 30d. And it is connected to the feeder control part 19 (refer FIG.2 (b)) through the notch part 30m formed in the side surface 30c with the wiring 42 led by 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 on which the light emitting portion 34 is arranged is designed so as to be integrally molded by resin molding, and the component detection sensor 15 The sensor body 30 can be manufactured inexpensively and easily.

  Next, the detailed structure of the component detection sensor 15 will be described with reference to FIG. FIG. 6A shows a side surface of the component detection sensor 15 that is bolted to the main body portion 5a (see FIG. 2B) of the tape feeder 5 via the attachment portion 31. A guide side plate 32 (see FIGS. 3 and 4) is attached. FIG. 6B shows a cross section (A-A cross section shown in FIG. 5) of the upper part from 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 detection unit 50 passes through the opening 30f and is received by the light receiving sensors 39A and 39B via the slits 36 and 37.

  In FIG. 6A, the light emitting unit 34 and the light receiving unit 40 bounded by the broken line frame constitute a component detection unit 50 that detects 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 disposed across the transport path 10 in the main body 5 a, the upstream transport path 10 communicates with the entrance 30 i of the sensor main body 30. Thereby, 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 is 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 for guiding the lower surface of the component supply tape 11 and the guide surface 10c. It has a form having a ceiling surface 10d facing each other at a position separated upward by a dimension larger than the thickness of the maximum thickness component supply tape 11 (see the component supply tape 11A shown in FIG. 8).

  Further, the 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 is provided with partial guide surfaces 32 a and 33 a that support and guide the lower surfaces of both sides of the component supply tape 11. Have. A part of the partial guide surfaces 32a and 33a is an approach portion that gradually approaches the ceiling surface 30k on the lower surface of the upper portion 30e as it goes downstream. And the part which comprises these approach parts becomes a form containing the slope which rises toward a downstream, as shown to the slope guide surfaces 32a1 and 33a1. The component detection unit 50 detects 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 as these approach units and has approached 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 provided in the component detection sensor 15 is irradiated from the light emitting unit 34 to supply the component. Although an example in which the light transmitted through the tape 11 is detected by transmitted light detection by the light receiving sensor 39A is shown, various other detection methods can be used.

  For example, instead of receiving the light from the light emitting unit 34 that has passed through the storage unit 20a of the component supply tape 11, the presence 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. You may make it detect. In this case, a light projecting unit that irradiates light is provided on the upper portion 30e, and the light reflected by the component P in the storage unit 20a is disposed so that the light can be received by the light receiving unit.

  Furthermore, a magnetic sensor can be used 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 through the slope guide surfaces 32a1 and 33a1 approaches the magnetic sensor, the detection signal generated when the component P having a metal portion in the storage portion 20a approaches the magnetic sensor causes the inside of the storage portion 20a. The presence of the part P in is detected.

  That is, as the component detection unit 50, a component using a magnetic sensor that detects a change in magnetism can be adopted, or the light from the light emitting unit 34 that has passed through the component supply tape 11 or the light emitted from the light emitting unit 34. Alternatively, an optical sensor that receives light reflected by the component P by the light receiving sensor 39A may be used. And when such a system is employ | adopted, it becomes the form by which 39 A of magnetic sensors or light reception sensors are arrange | positioned at the upper part 30e side 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. However, the component is detected only by the partial guide surface 33a without the guide side plate 32. The lower surface of the side portion on one side of the supply tape 11 may be supported. That is, the component detection sensor 15 of the present embodiment has 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 target component supply tape 11 in this embodiment has a plurality of feed holes 20b (see FIG. 11) for tape conveyance at a constant pitch, and the partial guide surfaces 32a and 33a have at least a plurality of feeds. The side portion having the hole 20b, that is, the side portion corresponding to the partial guide surface 33a fixed inside 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 structure in which a cover tape 21 and a 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, respectively. Thus, a small component P is stored in the storage portion 20a.

  As shown in FIG. 7A, the component supply tape 11 conveyed along the guide surface 10c of the upstream conveyance 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 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 passes through the slit unit 36 to receive the light receiving sensor 39A. , The presence / absence of the component P in the storage portion 20a is detected.

  Thus, even when a thin tape with 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, the inspection target storage unit 20 a is in a position close to the light receiving unit 40 at the inspection position by the component detection unit 50. Therefore, the transmitted light emitted from the light emitting portion 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. 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 11A having the component P stored in the embossed portion and having a large thickness will be described. As shown in the cross section of FIG. 8B, the component supply tape 11A has a configuration in which a cover tape 21 is attached to the upper surface of the storage portion 20a in which the embossed portion 20AE and the feed hole 20b project on the lower surface side. A large component P is stored in the storage portion 20a.

  As shown in FIG. 8A, the component supply tape 11A conveyed along the embossed portion 20AE along the guide surface 10c of the upstream conveyance path 10 enters the component detection sensor 15 from the entrance 30i. As shown in FIG. 8B, the lower surface of both sides is supported by the slope guide surfaces 32a1 and 33a1 and the horizontal guide surfaces 32a2 and 32a2. At this time, the embossed portion 20AE floats 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 embossed portion 20AE is detected.

  As described above, even when 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 surface of the both end portions is 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 in the light receiving unit 40 at the inspection position by the component detection portion 50. It is in a position close to Therefore, the light transmitted from the light emitting section 34 (FIG. 6) and transmitted through the embossed section 20AE, the storage section 20a, and the feed hole 20b can be stably received by the light receiving sensor 39A and the light receiving sensor 39B. The presence / absence of the component P in the storage portion 20a of the portion 20AE and the position detection of the feed hole 20b can be correctly performed.

  As described above, in the present embodiment, in the configuration in which the component P stored in the storage unit 20a is optically detected by the component detection unit 50 arranged in the conveyance path 10, at least the component detection unit 50 of the conveyance path 10 is detected. A guide surface 10c for guiding the lower surface of the component supply tape 11 or the component supply tape 11A to the upstream portion, and a distance larger than the maximum thickness of the component supply tape used in the tape feeder 5 from the guide surface 10c. A configuration having a ceiling surface 10d facing each other at a certain position is adopted, and the component supply tape having the maximum thickness can be set as a detection target.

  Further, it has a form having partial guide surfaces 32a and 33a for supporting the lower surface of at least one side of the component supply tape 11 or the component supply tape 11A upstream from the detection position of the component by the component detection unit 50. Slope guide surfaces 32a1 and 33a1 that approach the ceiling surface 30k as they go downstream are provided in part of the guide surfaces 32a and 33a. Accordingly, when a thin component supply tape 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. Yes.

  By adopting such a configuration, a plurality of types of component supply tapes having different thicknesses such as paper tape for small components (see component supply tape 11) and embossed tape for large components (see component supply tape 11A) are detected. Even in such a case, it is possible to stably detect the presence or absence of the component P in the storage unit 20a 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 do.

  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 the standard width (8 mm) targeted by the tape feeder 5 shown in the present embodiment. Is schematically shown. Here, for a plurality of types (here, three types) of components P to be supplied by the component supply tape 11 (component supply tape 11A), the nominal size and the plane size (pocket size) of the storage portion 20a targeted for the components are described. )It is shown.

  That is, the component P has a rectangular shape with a dimension W1 in the conveyance direction of the component supply tape 11 and a dimension W2 in the width direction of the component supply tape 11. For example, a part P1 (W1 = 1.6 mm, W2 = 3.8 mm) having a nominal size (3816) corresponds to the pocket-sized storage portion 20a (1) of (1.90 × 4.10 mm). The part P2 (W1 = 0.3 mm, W2 = 0.6 mm) having a nominal size (0603) corresponds to the pocket-sized storage portion 20a (2) of (0.38 × 0.68 mm). The component P3 (W1 = 0.2 mm, W2 = 0.4 mm) of size (0402) corresponds to the pocket-sized storage portion 20a (3) of (0.24 × 0.45 mm). And about the feed hole 20b, it is provided in the position of 1.75 mm from the side end surface of the component supply tape 11 by the diameter size of (PHI) 1.50mm.

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

  The slit portion 36 is an opening for detecting the storage portion 20a, and is provided in 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 the shape of the slit portion 36 that is an opening for component detection provided in the light shielding member 35, the elongated rectangular shape in which the dimension D1 in the transport direction is narrower than the dimension D2 in the width direction of the component supply tape 11 is used. Slits are used.

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

  The dimension D2 of the slit portion 36 in the width direction of the component supply tape 11 is the minimum size component (here, the component P3 having a nominal size (0402)) supplied by the component supply tape 11 in the width direction of the component supply tape 11. The dimension is set to be larger than the dimension W2 (0.4 mm). Specifically, the dimension D2, that is, the dimension of the slit portion 36 in the width direction of the component supply tape 11 is preferably set in the range of 0.6 mm to 2.0 mm. The recommended size of the dimension D2 of the slit part 36 in the present embodiment is 1.0 mm. In addition, since the minimum size parts supplied with the 4 mm width parts supply tape have a nominal size of 0201 (W1 = 0.2 mm, W2 = 0.1 mm) at the time of filing the present application, they are used with the 4 mm width parts supply tape. The dimension of the slit portion to be performed is 0.05 mm to 0.08 mm for D1, and 0.5 mm to 1.0 mm for D2.

  The technical significance of setting the size of the slit 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 the reel replacement method when the component supply tape 11 is replenished, when the preceding component supply tape (preceding tape) is out of parts, the subsequent component supply tape (next tape) ) Is used for insertion and a so-called auto loading method is used. In this method, the newly supplied component supply tape 11 is tape-fed along the conveyance path 10 by the feeding unit 13, and the feed hole 20 b of the component supply tape 11 is engaged with the sprocket of the conveyance unit 16. .

  However, when the presence or absence of a component on the component supply tape 11 is detected by the component detection sensor 15 in such an autoloading method, there are the following disadvantages. That is, in the auto-loading method, the subsequent component supply tape 11 is only moved by being fed from the upstream side by the feeding unit 13 and is not accurately held, so the position of the component supply tape 11 that has reached the component detection sensor 15 is reached. The posture is not always stable. For this reason, the positional relationship between the storage unit 20a in which components are stored in the component supply tape 11 and the component detection unit 50 is not suitable for component detection, and stable component detection may not be possible.

  Even in such a case, the position in the width direction of the component supply tape 11 is unstable by setting the size of the slit portion 36 formed in the light shielding member 35 so as to satisfy the relationship shown in FIG. Even in this state, it is possible to position the storage portion 20a 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 as the component detection sensor 15 instead of a single unitized component detection sensor. 10 (a) and 10 (b), a main body portion 5a constituting a frame portion of the tape feeder 5 is provided with a lower portion 5d and an upper portion 5e that extend in the horizontal direction and face each other in the vertical direction. Between the lower part 5d and the upper part 5e is a conveyance path 10 for conveying the component supply tape 11 (see FIG. 11) or the component supply tape 11A supplied by the main body 5a.

  The upper surface of the lower portion 5d is a guide surface 10c that guides the lower surface of the component supply tape 11 when the component supply tape 11 or the component supply tape 11A is conveyed, and the lower surface of the upper portion 5e is supplied from the guide surface 10c by the main body 5a. It is a ceiling surface 10d that confronts at a position separated upward by a dimension larger than the thickness of the maximum thickness component supply tape 11. 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.

  A partial guide surface 42a including a slope guide surface 42a1 and a horizontal guide surface 42a2 is provided on the upper surface of the lower portion 5d along the inner 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 goes to the ceiling surface 10d as it goes downstream from the guide surface 10c. It consists of a slope guide surface 42a1 that gradually approaches and a horizontal guide surface 42a2 that is horizontal. In the example shown here, the partial guide surface 42a guides the side of the component supply tape 11 or the component supply tape 11A that has the plurality of feed holes 20b.

  A portion corresponding to the horizontal guide surface 42a2 is an opening 5f in which an upper portion 5e and a lower portion 5d are cut off. A light emitting unit 34 having the same function as the component detecting unit 50 in FIG. 6 is disposed below the opening 5f, and a light receiving unit 40A is disposed above the opening 5f. The light emitting unit 34 and the light receiving unit 40A constitute a component detection unit 50A and have the same functions as the component detection unit 50 in FIG. That is, by receiving the light emitted from the light emitting unit 34 and transmitted through the component supply tape 11 or the storage unit 20a of the component supply tape 11A by the light receiving unit 40A, as in the example shown in FIGS. 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 taking an autoloading type component supply device as an example, a component supply device other than the autoloading method, that is, a component supply tape 11 inserted from the insertion port 10a of the conveyance path 10 is conveyed. The present invention can also be applied to a component supply apparatus that does not have the feeding section 13 and the tape standby mechanism 14 that send to the section 16.

  The component supply device and the component mounting device of the present invention stably detect 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 that stores the component, and the difference in tape thickness. This is useful in the field of component mounting in which components stored in a component supply tape are taken out and mounted on a substrate.

DESCRIPTION OF SYMBOLS 1 Component mounting apparatus 3 Board | substrate 4 Component supply part 5 Tape feeder 5a Main body part 10 Conveyance path 10a Insert port 10c Guide surface 10d Ceiling surface 11, 11A Component supply tape 12 Component pick-up position 13 Feed part 15 Component detection sensor 16 Conveyance part 20a Storage Part 20b feed hole 30 sensor body part 30b bottom part 30e upper part 30i inlet 30j outlet 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 Component detection part P Component R Path

Claims (14)

A component supply device that conveys a component supply tape storing components in a storage unit to a component removal position and supplies the components stored in the storage unit to a component mounting device,
A main body provided with a conveyance path for guiding the component supply tape to the component removal position;
A transport unit that transports the component supply tape in the transport path toward the component take-out position and positions the storage unit at the component take-out position;
A component detection unit for detecting a component stored in the storage unit in the transport path upstream from the component extraction position;
At least the upstream portion of the component detection unit in the transport path has a guide surface that guides the lower surface of the component supply tape, and a dimension larger than the thickness of the maximum thickness component supply tape used in the component supply device from the guide surface. With a ceiling surface facing away from each other only at an upper position,
Furthermore, it has a partial guide surface that supports the lower surface of at least one side of the component supply tape upstream of the detection position of the component by the component detector.
At least a part of the partial guide surface is an approach unit that approaches the ceiling surface as it goes downstream. The component supply device according to claim 1, wherein the component supply tape has a plurality of feed holes for conveying a tape at a constant pitch, and the partial guide surface guides at least a side portion having the plurality of feed holes .   The component supply device according to claim 1, wherein a portion of the partial guide surface that constitutes the approach portion is a slope. The component supply apparatus according to claim 1, wherein the partial guide surface is provided in the middle of the conveyance path. The transport path has an entrance portion where the guide surface and the ceiling surface approach,
The component supply device according to claim 1, wherein the partial guide surface is provided downstream of the inlet portion. The component detecting unit detects a part in which the stored in the storage portion of the component supply tape in close proximity through the approach portion to the ceiling surface, the component supply device according to any one of claims 1 to 5. The component detection unit is a magnetic sensor that detects a change in magnetism, or an optical sensor that receives light from the light emitting unit that has passed through the component supply tape or light that is irradiated from the light projecting unit and reflected by the component by a light receiving unit. The component supply device according to claim 6 , wherein the magnetic sensor or the light receiving unit is disposed on the ceiling surface side. A component mounting apparatus that transports a component supply tape storing components in a storage unit to a component extraction position, and extracts the component from the storage unit at the component extraction position and mounts the component on a substrate.
A main body provided with a conveyance path for guiding the component supply tape to the component removal position;
A transport unit that transports the component supply tape in the transport path toward the component take-out position and positions the storage unit at the component take-out position;
A component detection unit for detecting a component stored in the storage unit in the transport path upstream from the component extraction position;
A mounting head for taking out a component from the storage unit positioned at the component extraction position and mounting the component on the substrate;
At least the upstream portion of the component detection unit in the transport path has a guide surface that guides the lower surface of the component supply tape, and a dimension larger than the thickness of the maximum thickness component supply tape used in the component supply device from the guide surface. With a ceiling surface facing away from each other only at an upper position,
Furthermore, it has a partial guide surface that supports the lower surface of at least one side of the component supply tape upstream of the detection position of the component by the component detector.
The component mounting device, wherein at least a part of the partial guide surface is an approach portion that approaches the ceiling surface as it goes downstream. The component mounting apparatus according to claim 8 , wherein the component supply tape has a plurality of feed holes for conveying a 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 apparatus according to claim 8 or 9 , wherein a portion of the partial guide surface that constitutes the approach portion is a slope. The component mounting apparatus according to claim 8, wherein the partial guide surface is provided in the middle of the conveyance path. The transport path has an entrance portion where the guide surface and the ceiling surface approach,
The component mounting apparatus according to claim 8, wherein the partial guide surface is provided downstream of the inlet portion. The component detecting unit detects the accommodated through the approach portion to the housing portion of the component supply tape in close proximity to the ceiling surface component, the component mounting apparatus according to any one of claims 8 12. The component detection unit is a magnetic sensor that detects a change in magnetism, or an optical sensor that receives light from the light emitting unit that has passed through the component supply tape or light that is irradiated from the light projecting unit and reflected by the component by a light receiving unit. The component mounting apparatus according to claim 13 , wherein the magnetic sensor or the light receiving unit is disposed on the ceiling surface side.

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