JP7068740B2 - feeder - Google Patents

Description

The present invention relates to a feeder for transporting a carrier tape containing parts.

Patent Document 1 describes an autoloading feeder including a tape detection sensor that detects the presence or absence of a carrier tape inserted in a tape insertion portion. This tape detection sensor includes a V-shaped leaf spring urged toward the tape transport path and an optical sensor capable of blocking the optical path by an optical path blocking plate provided in the center of the leaf spring. In this tape detection sensor, when the carrier tape moves the leaf spring up and down, light is blocked or incident on the optical sensor, so that the presence or absence of the carrier tape can be detected.

Japanese Unexamined Patent Publication No. 2011-77096

The auto-loading feeder has not only a carrier tape that can store relatively small parts (hereinafter referred to as carrier tape), but also a downwardly protruding parts storage unit that can store relatively large parts. Some carrier tapes (hereinafter referred to as embossed tapes) can be supplied. A groove is formed in the tape transport path of such a feeder to pass the component accommodating portion of the embossed tape.

In this tape transport path, when the carrier tape is transported, if the carrier tape is easily bent, one side of the carrier tape may fall into the groove. In such a case, since the carrier tape cannot raise the leaf spring of the tape detection sensor, there is a problem that the tape cannot be detected by the optical sensor of the tape detection sensor and the autoloading operation cannot be started.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a feeder capable of reliably auto-loading various tapes.

In order to solve the above problems, the feeder of the present invention is provided between the feeder main body in which the tape insertion portion for inserting the carrier tape is formed at the rear portion and the side walls of the feeder main body so as to communicate with the tape insertion portion. A tape transport path for transporting the carrier tape from the rear to the front, and a engagement hole rotatably provided in the feeder body and capable of engaging with the engagement hole of the carrier tape inserted from the tape insertion portion. A rear sprocket having a joint protrusion and delivering the carrier tape along the tape transport path is provided, and a component storage section for storing a plurality of components is formed in the tape transport path so as to project downward. A groove is formed through the component storage portion when the carrier tape is conveyed, and the carrier tape inserted from the tape insertion portion is pressed by the lower surface of the carrier tape until the carrier tape reaches the rear sprocket. A tape lower surface urging member that is deformed downward is provided.

As a result, when the carrier tape is inserted into the tape transport path from the tape insertion portion, the lower surface of the carrier tape is supported by the tape lower surface urging member. Therefore, it is possible to prevent one side of the carrier tape from falling into the groove of the tape transport path.

It is an overall plan view of the component mounting machine suitable for carrying out the present invention. It is a top view of the carrier tape and the embossing tape. FIG. 2 is a cross-sectional view taken along the line AA of the carrier tape shown in FIG. FIG. 2 is a cross-sectional view taken along the line AA of the embossed tape shown in FIG. It is an exploded side view of the feeder which shows the embodiment of this invention. It is an enlarged view of the rear part of the feeder shown in FIG. It is an enlarged detailed view around the tape lower surface urging member and the tape upper surface urging member shown in FIG. FIG. 6 is a sectional view taken along line BB around the tape lower surface urging member and the tape upper surface urging member shown in FIG. It is the state before the operation of the feeder, and is the operation state diagram which shows the state which the operation lever is lowered. It is an operation state diagram which shows the state which lifted the operation lever. FIG. 9 is an enlarged view when the carrier tape is inserted into the tape transport path between the tape lower surface urging member and the tape upper surface urging member shown in FIG. 9. FIG. 10 is a sectional view taken along line CC around the tape lower surface urging member and the tape upper surface urging member shown in FIG. 10. FIG. 9 is an enlarged view when the embossed tape is inserted into the tape transport path between the tape lower surface urging member and the tape upper surface urging member shown in FIG. 9. FIG. 12 is a cross-sectional view taken along the line CC around the tape lower surface urging member and the tape upper surface urging member shown in FIG. 12. It is an operation state diagram which shows the state which lowers an operation lever and conveys a carrier tape. It is a figure which shows the state when the carrier tape is inserted into the conventional tape transport path. FIG. 15 is a sectional view taken along line DD around the tape transport path shown in FIG.

(Configuration of component mounting machine)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a component mounting machine 100 provided with a feeder 21, and the component mounting machine 100 includes a board transport unit 10, a component supply unit 20, a component mounting unit 40, a reel holding unit 50, and a control device 200 for controlling them. Have. In the following description, the transport direction of the substrate is the X-axis direction, and the horizontal direction perpendicular to the X-axis direction is the Y-axis direction.

As shown in FIG. 1, the component supply unit 20 includes a plurality of slots 20a and a plurality of feeders 21 detachably mounted in each slot 20a. A plurality of slots 20a are provided in parallel in the component supply unit 20 in the X-axis direction. A carrier tape 900 (see FIGS. 2 and 3A) or an embossed tape 910 described later (see FIGS. 2 and 3B) wound on the reel holding portion 50 can be replaced with a first reel 810 and a second reel 820. Retained. The first reel 810 and the second reel 820 are arranged one by one in parallel in the Y direction, and a plurality of them are arranged in the X direction corresponding to each feeder 21.

Although the details will be described later, the carrier tape 900 or the embossed tape 910 wound around the first reel 810 and the second reel 820 can be inserted into each feeder 21. Then, the carrier tape 900 or the embossed tape 910 wound around one of the reels 810 (820) is sequentially conveyed by the feeder 21 to the component take-out position 21a provided at the tip of the feeder 21. As a result, the parts held by the carrier tape 900 or the embossed tape 910 are positioned at the parts take-out position 21a. Further, the carrier tape 900 or the embossed tape 910 wound around the other reel 820 (810) is not fed by the feeder 21 and stands by.

In the following, for convenience of explanation, in order to distinguish the carrier tape 900 or embossed tape 910 being conveyed (in use) from the carrier tape 900 or embossed tape 910 in standby, the former is referred to as the first carrier tape 900A. Alternatively, the first embossed tape 910A and the latter may be referred to as a second carrier tape 900B or a second embossed tape 910B. In this case, after all the parts housed in the first carrier tape or the first embossed tape have been used, the second carrier tape or the second embossed tape becomes the first carrier tape or the first embossed tape. 1 Carrier tape or 1st embossed tape, 2nd carrier tape or 2nd embossed tape does not refer to a specific carrier tape or embossed tape.

As shown in FIGS. 2, 3A and 3B, the carrier tape 900 and the embossed tape 910 accommodate parts such as a plurality of electronic parts in a row. The carrier tape 900 is composed of a base tape 901, a cover tape 902, and a bottom tape 903. The embossed tape 910 is composed of a base tape 904 and a cover tape 902. The base tapes 901 and 904 are each made of a flexible material such as paper or resin. Through holes 901a are formed in the central portion of the base tape 901 of the carrier tape 900 in the width direction at regular intervals in the length direction. At the center of the base tape 904 of the embossed tape 910 in the width direction, the embossed portions 904a recessed downward at regular intervals in the length direction are formed. Then, engagement holes 901b are formed through the side portions of the base tapes 901 and 904 at regular intervals in the length direction.

As shown in FIG. 3A, since the carrier tape 900 accommodates relatively small parts, the bottom tape 903 is formed flat, and between the bottom tape 903 and the through hole 901a of the base tape 901 and the cover tape 902. Parts are stored in the parts storage unit 901c formed in. Further, as shown in FIG. 3B, since the embossed tape 910 stores relatively large parts, the parts are stored in the parts storage portion 901d formed between the embossed portion 904a of the base tape 904 and the cover tape 902. Will be done.

As shown in FIG. 2, both sides of the cover tape 902 are adhered to both sides of the upper surface of the base tapes 901 and 904 by the adhesive 902a, and normally, the cover tape 902 is attached to the upper portions of the component storage portions 901c and 901d. Each is blocked. The cover tape 902 prevents the parts stored in the storage portions 901c and 901d from popping out. The cover tape 902 is composed of a transparent polymer film. Further, as shown in FIG. 3A, the bottom tape 903 is adhered to the lower surface of the base tape 901 of the carrier tape 900. The bottom tape 903 prevents the parts stored in the parts storage unit 901c from falling off. The bottom tape 903 is made of a transparent or translucent paper material, a polymer film, or the like.

As shown in FIG. 1, the substrate transport portion 10 is provided with a pair of guide rails 13a and 13b, respectively, on the base 41 of the component mounting portion 40. Further, the substrate transport unit 10 includes a conveyor belt (not shown) that supports and conveys the substrate B guided by the guide rails 13a and 13b, respectively, and a schematic that lifts and clamps the substrate B conveyed to a predetermined position. Clamping device is provided. The board B on which the components are mounted is conveyed to the component mounting position in the X-axis direction by the conveyor belt while being guided by the guide rails 13a and 13b of the substrate transfer unit 10. The substrate B conveyed to the component mounting position is positioned and clamped at the component mounting position by the clamping device.

The component mounting portion 40 has a guide rail 42, a Y-axis slide 43, an X-axis slide 45, and a component mounting head 48 holding a suction nozzle (not shown). The Y-axis slide 43 and the X-axis slide 45 are controlled to move in the Y-axis direction and the X-axis direction by the Y-axis servomotor and the X-axis servomotor (not shown). The guide rail 42 and the Y-axis slide 43 constitute a Y-axis robot. The guide rail 42 is mounted on the base 41 in the Y-axis direction and is arranged above the substrate transport portion 10. The Y-axis slide 43 is provided so as to be movable in the Y-axis direction along the guide rail 42. The Y-axis slide 43 is moved in the Y-axis direction via a ball screw mechanism by a Y-axis servomotor (not shown).

The X-axis slide 45 constitutes an X-axis robot. The X-axis slide 45 is provided on the Y-axis slide 43 so as to be movable in the X-axis direction. The Y-axis slide 43 is provided with an X-axis servomotor (not shown). By this X-axis servomotor, the X-axis slide 45 is moved in the X-axis direction via the ball screw mechanism. The X-axis slide 45 is provided with a component mounting head 48. The component mounting head 48 detachably holds a plurality of suction nozzles (not shown). The suction nozzle sucks the component transported to the component removal position 21a and mounts it on the substrate B positioned at the component mounting position by the substrate transport unit 10.

A board camera 46 is mounted on the X-axis slide 45. The board camera 46 captures a reference mark provided on the board B positioned at the board mounting position, a component conveyed to the component take-out position 21a, or the like from above, and acquires substrate position reference information, component position information, and the like. .. Further, on the base 41, a component camera 47 capable of capturing an image of the component sucked by the suction nozzle from below is provided.

The control device 200 controls the feeder 21 and controls the rotation of the first servomotor 22 and the second servomotor 23 of the feeder 21, which will be described later. The control device 200 has a driver that supplies a drive current to the microprocessor and the servomotors 22 and 23. When the feeder 21 is mounted in the slot 20a of the component supply unit 20, power is supplied from the main body side of the component mounting machine 100 to the feeder 21 side via the communication connector (not shown), and a feeder ID or the like is required. Information is transmitted from the feeder 21 side to the control device 200 of the component mounting machine 100. As a result, based on the serial ID of the feeder 21, information on the parts sent by the carrier tape 900 loaded in the feeder 21 is acquired and stored in the control device 200.

(Feeder configuration)
Next, the configuration of the feeder 21 will be described with reference to FIGS. 4 to 7. The feeder 21 mainly includes a feeder main body 21b, a rail 38 as a tape transport path, an inlet holding member 32, a first sprocket 61 and a second sprocket 62 as a front side sprocket, a third sprocket 63 as a rear side sprocket, and the like. It is composed of a fourth sprocket 64 and the like. In addition, in FIGS. 4 and 5, one side wall 21ba (see FIG. 7) of one of the feeder main bodies 21b (the back side of FIGS. 4 and 5) is left, and the side wall 21bb of the other side (the front side of FIGS. 4 and 5) (see FIG. 7). (See FIG. 7) is removed so that the internal structure of the feeder 21 can be visually recognized.

As shown in FIG. 4, the feeder main body 21b has a flat box shape. In the feeder main body 21b, a tape insertion portion 21d for inserting the carrier tape 900 or the embossed tape 910 is formed at the rear portion, and a tape discharging portion 21e for ejecting the carrier tape 900 or the embossed tape 910 is formed at the front portion. Ru. The tape insertion section 21d is formed as an inlet of the tape transport path 38 having the same width as the width of the tape transport path (rail) 38, and the tape discharge section 21e has the same width as the width of the tape transport path 38. It is formed as an outlet of the transport path 38.

The tape transport path 38 communicates the carrier tape 900 or the embossed tape 910 from the rear to the front of the feeder main body 21b with the tape insertion portion 21d and the tape discharge portion 21e on both side walls 21ba of the feeder main body 21b. , 21bb. The front portion 38a of the tape transport path 38 is formed horizontally. In the present embodiment, the tape transport path 38 is inclined so as to gradually increase from the rear portion to the front portion of the front portion 38a. Although not shown, guide portions are provided on both sides of the tape transport path 38 so as to be separated by a dimension slightly larger than the width dimension of the carrier tape 900 (embossed tape 910).

As shown in FIGS. 4 to 7, a groove 38A through which the component accommodating portion 901d of the embossed tape 910 is passed is formed in the tape transport path 38. In the groove 38A, a tape lower surface urging member 110 made of a strip-shaped leaf spring (elastic body) extending from the tape insertion portion 21d to the stopper member 31 described later is provided. The tape lower surface urging member 110 is arranged along the upper edge at a position slightly higher than the upper edge of the groove 38A, the front end portion is bent downward in an L shape, and the tip portion is shown on the bottom surface of the groove 38A. It is fixed with abbreviated screws or the like, and the rear end is slightly bent downward at the free end. The reason why the rear end portion is bent downward is that the tip of the tape inserted into the tape transport path 38 is smoothly applied to the upper surface of the tape lower surface urging member 110 without abutting against the rear end portion of the tape lower surface urging member 110. This is to guide you.

Since the tape lower surface urging member 110 has a cantilever structure as described above, when the tape inserted into the tape transport path 38 from the tape insertion portion 21d is the carrier tape 900, the tip portion of the carrier tape 900 is used. The lower surface of the bottom tape 903 is urged upward up to the fourth sprocket 64 (see FIG. 11). Further, in the tape lower surface urging member 110, when the tape inserted into the tape transport path 38 from the tape insertion portion 21d is the embossed tape 910, the bottom tape 904 is provided until the tip end portion of the embossed tape 910 reaches the fourth sprocket 64. The lower surface of the embossed portion 904a is pressed downward and deformed (see FIG. 13).

As shown in FIGS. 4 and 5, the inlet pressing member 32 presses the carrier tape 900 or the embossed tape 910 inserted from the tape inserting portion 21d toward the tape transport path 38, and is close to the tape inserting portion 21d. It is arranged along the upper surface of the rear portion of the tape transport path 38, and is provided so as to be detachable from the tape transport path 38. The inlet holding member 32 is attached downward from the rear portion of the downstream holding member 33 via a pair of shafts 34-2 so as to be movable in the vertical direction. A spring 35-2 that urges the inlet holding member 32 downward is attached to the pair of shafts 34-2.

As shown in FIGS. 4 to 7, on the lower surface of the inlet holding member 32, the third dog 86 (corresponding to the “detection device” of the present invention), which will be described later, faces the tape lower surface urging member 110 and is in front of the arrangement position. A tape upper surface urging member 111 made of a strip-shaped leaf spring (elastic body) extending to is provided. The rear end portion of the tape upper surface urging member 111 is fixed to the lower surface of the inlet holding member 32 with a screw or the like (not shown), the front end portion is bent downward in an L shape, and the front end portion is a free end of the tape lower surface urging member 111. It comes into contact with the member 110.

Since the tape upper surface urging member 111 has a cantilever structure as described above, the carrier tape 900 or the carrier tape 900 that is inserted into the tape transport path 38 from the tape insertion portion 21d and passes over the tape lower surface urging member 110. The upper surface of the embossed tape 910 is urged downward. That is, the tip of the carrier tape 900 or the embossed tape 910 pushes up the tape upper surface urging member 111 that is in contact with the tape lower surface urging member 110, and is between the tape lower surface urging member 110 and the tape upper surface urging member 111. Get in. As a result, the tape upper surface urging member 111 urges the upper surface of the carrier tape 900 or the embossed tape 910 downward.

Here, as described in the background art, when the carrier tape 900 is easily bent, when the carrier tape 900 is inserted into the tape transport path 38 from the tape insertion portion 21d, the carrier tape 900 is in the width direction as shown in FIG. As shown in FIG. 16, one side of the carrier tape 900 may fall into the groove 38A of the tape transport path 38. In this state, the tip of the carrier tape 900 abuts on the third dog 86 and cannot rotate the third dog 86, and the third sensor 85 (see FIG. 5) described later (see FIG. 5) (“Detection device” of the present invention. It cannot be detected that the carrier tape 900 has been inserted in a predetermined position.

However, in the present embodiment, as shown in FIGS. 6 and 7, a tape lower surface urging member 110 is provided in the groove 38A of the tape transport path 38, and a tape upper surface is provided on the lower surface of the inlet holding member 32. A force member 111 is provided. As a result, even if the carrier tape 900 is easily bent, when the carrier tape 900 is inserted into the tape transport path 38 from the tape insertion portion 21d, the carrier tape 900 has the tape upper and lower surfaces of the tape lower surface urging member 110 and the tape upper surface urging member. It is sandwiched by 111.

Therefore, one side of the carrier tape 900 can be prevented from falling into the groove 38A of the tape transport path 38, and the embossed tape 910 can smoothly move on the tape transport path 38, so that the carrier tape 900 or the embossed tape 910 can be smoothly moved. Each tip of the third dog 86 abuts on the third dog 86 to rotate the third dog 86, and the third sensor 85 can detect that the carrier tape 900 or the embossed tape 910 has been inserted in a predetermined position.

As described above, when the upper and lower surfaces of the tape are sandwiched between the tape lower surface urging member 110 and the tape upper surface urging member 111, the carrier tape 900 moves along the upper surface of the tape transport path 38 without rising from the upper surface. There is a need. Further, in the embossed tape 910, when the upper and lower surfaces of the tape are sandwiched between the tape lower surface urging member 110 and the tape upper surface urging member 111, the tape is conveyed in a state where the tape lower surface urging member 110 is deformed downward by the embossed portion 904a. It is necessary to move along the upper surface of the road 38 without rising from the upper surface. Therefore, the elastic modulus of the tape lower surface urging member 110 is formed to be smaller than the elastic modulus of the tape upper surface urging member 111.

As shown in FIGS. 4 and 5, the downstream pressing member 33 presses the carrier tape 900 or the embossed tape 910 on the downstream side of the inlet pressing member 32, and is provided so as to be detachable from the tape transport path 38. The downstream holding member 33 is attached to the first support member 30-1 and the second support member 30-2 attached to the feeder main body 21b so as to be movable in the vertical direction via the shaft 34-1. A spring 35-1 that urges the downstream side holding member 33 downward is attached to the shaft 34-1.

As shown in FIG. 4, the first sprocket 61 and the second sprocket 62 are located at the feeder main body 21b below the front portion 38a of the tape transport path 38, that is, at a position adjacent to the component take-out position 21a of the feeder main body 21b. It is provided so as to be rotatable from the front to the rear (from the downstream side to the upstream side in the transport direction). The third sprocket 63 and the fourth sprocket 64 are provided on the lower feeder body 21b at the rear of the tape transport path 38 so as to be rotatable from the front to the rear.

Engagement protrusions 61a, 62a, 63a are formed on the outer circumferences of the first sprocket 61, the second sprocket 62, and the third sprocket 63, respectively, over the entire circumference at a constant angle. Engagement protrusions 64a are provided on a part of the outer periphery of the fourth sprocket 64 at a distance of 180 degrees. That is, there is a portion where the engaging protrusion is not formed between each of the engaging protrusions 64a of the fourth sprocket 64. Each of the engaging protrusions 61a to 64a can be engaged with the engaging hole 901b of the carrier tape 900 or the embossed tape 910.

A first sprocket gear 61b, a second sprocket gear 62b, a third sprocket gear 63b, and a fourth sprocket gear 64b are formed inside the outer peripheral portions of the first sprocket 61 to the fourth sprocket 64, respectively. A window hole (not shown) is provided above each sprocket 61 to 64 of the tape transport path 38, and the engaging protrusions 61a to 64a rush into the tape transport path 38 from this window hole.

The first servomotor 22 is a motor that rotates the first sprocket 61 and the second sprocket 62. A first drive gear 22b is provided on the rotating shaft 22a of the first servomotor 22. The first gear 24 is rotatably provided on the feeder body 21b below the first sprocket 61 and the second sprocket 62. A first outer gear 24a that meshes with the first drive gear 22b is formed on the outer periphery of the first gear 24. The first inner gear 24b is formed inside the outer circumference of the first gear 24.

The second gear 25 is rotatably provided on the feeder body 21b between the first sprocket 61 and the second sprocket 62 and the first gear 24. The second gear 25 meshes with the first sprocket gear 61b, the second sprocket gear 62b, and the first inner gear 24b. With such a configuration, the rotation of the first servomotor 22 is decelerated and transmitted to the first sprocket 61 and the second sprocket 62, and the first sprocket 61 and the second sprocket 62 rotate in synchronization with each other.

The second servomotor 23 is a motor that rotates the third sprocket 63 and the fourth sprocket 64. A second drive gear 23b is provided on the rotating shaft 23a of the second servomotor 23. The third gear 26 is rotatably provided on the feeder body 21b below the third sprocket 63 and the fourth sprocket 64. A third outer gear 26a that meshes with the second drive gear 23b is formed on the outer periphery of the third gear 26. The third inner gear 26b is formed inside the outer circumference of the third gear 26.

The fourth gear 27 is rotatably provided on the feeder body 21b between the third sprocket 63 and the fourth sprocket 64 and the third gear 26. The fourth gear 27 meshes with the third sprocket gear 63b, the fourth sprocket gear 64b, and the third inner gear 26b. With such a configuration, the rotation of the second servomotor 23 is decelerated and transmitted to the third sprocket 63 and the fourth sprocket 64, and the third sprocket 63 and the fourth sprocket 64 rotate in synchronization with each other.

As shown in FIG. 5, the operating lever 51 is provided so as to project rearward above the tape insertion portion 21d at the rear of the feeder main body 21b, and is rotatably supported around the pivot 52. The lever operating grip portion 57 (see also FIG. 4) is formed so as to project rearward from the rear portion of the feeder main body 21b above the operating lever 51. The operation lever 51 is housed in the lever operation grip portion 57 on the pivot 52 side and the lever operation on the operation knob 51b side so that the operator can easily grasp the lever operation grip portion 57 with his / her palm and operate the operation knob 51b with his / her fingers. It is provided so as to protrude from the grip portion 57.

As will be described later, the inlet holding member 32 is operably connected to the operating lever 51. The inlet holding member 32 is provided with an engaging member 54 between the pair of shafts 34-2. An actuating engaging portion 51a that engages with the lower surface of the engaging member 54 of the inlet holding member 32 is formed in the central portion of the operating lever 51. The operating lever 51 is rotated counterclockwise in FIG. 5 by the urging force of the spring 55, normally holds the actuating engaging portion 51a in the lowered position, and holds the inlet holding member 32 in the urging force of the spring 35-2. To bring it into contact with the tape transport path 38. As a result, normally, the inlet holding member 32 prevents the carrier tape 900 or the embossed tape 910 from being inserted from the tape inserting portion 21d.

On the other hand, when the operation knob 51b provided at the rear end of the operation lever 51 is lifted by the operator and the operation lever 51 is rotated against the urging force of the spring 55, the inlet holding member 32 operates. It is raised against the urging force of the spring 35-2 via the engaging portion 51a. As a result, the inlet holding member 32 is separated from the tape transport path 38, and the carrier tape 900 or the embossed tape 910 can be inserted from the tape insertion portion 21d.

An obstruction plate 56 that closes the tape insertion portion 21d is pivotally supported at the rear portion of the entrance holding member 32. The baffle plate 56 prevents the carrier tape 900 or the embossed tape 910 from being inserted between the tape transport path 38 and the inlet holding member 32. When the inlet holding member 32 is raised, the obstruction plate 56 engages with the rear portion of the downstream holding member 33 and is rotated to open the tape insertion portion 21d.

A stopper member 31 is provided adjacent to the inlet holding member 32 on the downstream side. The stopper member 31 is rotatable by the shaft support portion 31b formed in the central portion thereof being pivotally supported by the downstream side holding member 33. A contact portion 31a projecting downward is formed in the lower portion in front of the shaft support portion 31b of the stopper member 31. The rear end of the stopper member 31 is a stop portion 31c.

A spring (not shown) is provided between the downstream holding member 33 and the stopper member 31 to urge the contact portion 31a in the direction of contacting the tape transport path 38. A projecting portion 31d projecting upward is formed in the upper portion of the stopper member 31 in front of the shaft support portion 31b, and a cam follower 31e is provided at the tip of the projecting portion 31d. A cam portion 51c formed on the front portion of the operating lever 51 is engaged with the cam follower 31e so as to be engageable and disengageable.

The operating lever 51 is formed on the operating lever 51 in a state where the operating lever 51 is rotated counterclockwise in FIG. 5 by the urging force of the spring 55 and the inlet holding member 32 is held at a position where it abuts on the tape transport path 38. The cam portion 51c is separated from the cam follower 31e of the stopper member 31. As a result, the stopper member 31 is rotated clockwise around the shaft support portion 31b by the urging force of the spring, the contact portion 31a is brought into contact with the tape transport path 38, and the stop portion 31c is taped. It is held at a position separated from the transport path 38.

On the other hand, when the operating lever 51 is rotated against the urging force of the spring 55, the cam portion 51c formed on the operating lever 51 engages with the cam follower 31e of the stopper member 31 to form the stopper member 31. It is rotated counterclockwise in FIG. 5 against the urging force of the spring, and the stop portion 31c comes into contact with the tape transport path 38. As a result, when the carrier tape 900 or the embossed tape 910 is inserted from the tape insertion portion 21d in a state where the operating lever 51 is rotated against the urging force of the spring 55, the tip of the carrier tape 900 or the embossed tape 910 is inserted. Abuts on the stop portion 31c of the stopper member 31 and is stopped at a predetermined position.

When the first carrier tape 900A or the first embossed tape 910A passes between the abutting portion 31a of the stopper member 31 and the tape transport path 38, the abutting portion is formed by the first carrier tape 900A or the first embossing tape 910A. 31a is lifted, and the stop portion 31c of the stopper member 31 is brought into contact with the tape transfer path 38. Therefore, in that state, when the second carrier tape 900B or the second embossed tape 910B is inserted onto the first carrier tape 900A or the first embossed tape 910A from the tape insertion portion 21d by the operator, the second carrier tape is inserted. The tip of the 900B or the second embossed tape 910B abuts on the stop portion 31c of the stopper member 31 and is stopped. As a result, the transfer of the second carrier tape 900B or the second embossed tape 910B to the downstream is prevented, and the second carrier tape 900B or the second embossed tape 910B stands by at that position.

As shown in FIG. 5, when the carrier tape 900 or the embossed tape 910 is inserted from the tape inserting portion 21d, the first sensor 81 for detecting the insertion of the carrier tape 900 or the embossed tape 910 is attached to the feeder main body 21b. .. The first sensor 81 turns on the first sensor 81 by lowering the first dog 82 protruding from the upper surface of the tape transport path 38 by inserting the carrier tape 900 or the embossed tape 910. The first dog 82 is normally held at a position protruding from the upper surface of the tape transport path 38 by the urging force of a spring (not shown), and is pressed downward when the carrier tape 900 or the embossed tape 910 is inserted. ..

Further, the feeder main body 21b operates when the second sensor 83 for detecting that the operation lever 51 has been rotated and the carrier tape 900 or the embossed tape 910 are conveyed to the tape transfer path 38 on the fourth sprocket 64. The third sensor 85 is attached. The second sensor 83 is turned on by the second dog 84 attached to the operating lever 51. The third sensor 85 is turned on by the rotation of the third dog 86.

The shaft support portion 86a formed in the central portion of the third dog 86 is pivotally supported by the downstream side holding member 33 and is rotatable. The third dog 86 is normally urged counterclockwise in FIG. 5 by a spring (not shown). As a result, when the carrier tape 900 or the embossed tape 910 does not exist in the tape transport path 38, the tip of the third dog 86 comes into contact with the upper surface of the tape transport path 38, but the carrier is in the tape transport path 38. When the tape 900 or the embossed tape 910 is present, the tip thereof comes into contact with the upper surface of the carrier tape 900 or the embossed tape 910. When the third sensor 85 detects the carrier tape 900 or the embossed tape 910 by being turned on by the rotation of the third dog 86, the control device 200 outputs a rotation instruction signal of the lever 51 for lowering the inlet holding member 32. Output to. As a result, the carrier tape 900 or the embossed tape 910 can be reliably pressed by the inlet pressing member 32.

As shown in FIG. 4, the presence / absence of the carrier tape 900 or the embossed tape 910 is detected on the feeder main body 21b on the downstream side (rear end side of the feeder 21) of the third sprocket 63, and the detection signal is transmitted to the control unit 39. A fourth sensor 65 is provided to output to. The fourth sensor 65 is a sensor that detects the boundary portion between the first carrier tape 900A or the first embossed tape 910A and the second carrier tape 900B or the second embossed tape 910B. On the feeder main body 21b on the upstream side (front end side of the feeder 21) of the second sprocket 62, a fifth sensor 66 that detects the presence or absence of the carrier tape 900 or the embossed tape 910 and outputs the detection signal to the control unit 39 is provided. It will be provided.

The levitation prevention member 28 is provided along the tape transport path 38 between the third sprocket 63 and the second sprocket 62. A shaft support 28a is formed at the front end of the levitation prevention member 28, and the shaft support 28a is pivotally supported by a shaft portion 21c provided on the feeder body 21b so that the levitation prevention member 28 can swing. Can be attached to. An upwardly bent guide portion 28b is formed at the rear end of the levitation prevention member 28. The torsion spring 29 is attached to the feeder main body 21b above the levitation prevention member 28, and urges the levitation prevention member 28 downward. By the torsion spring 29, the lower surface of the levitation prevention member 28 is brought into close contact with the upper surface of the tape transport path 38.

The tape peeling device 70 is provided on the upper front side of the feeder main body 21b, can peel the cover tape 902 from the carrier tape 900 or the embossed tape 910, and can take out the parts from the parts storage portions 901c and 901d positioned at the parts taking out position 21a. To do so.

(Feeder operation)
Next, the operation of the feeder 21 according to the above-described embodiment will be described with reference to FIGS. 8 to 14. Here, the first carrier tape 900A or the first embossed tape 910A is wound around the front reel 810, and the second carrier tape 900B or the second embossed tape 910B is wound around the rear reel 820. .. Normally, the operating lever 51 is held in the state shown in FIG. 8 by the urging force of the spring 55, the inlet holding member 32 is in contact with the tape transport path 38, and the obstruction plate 56 is rotated by its own weight. The tape insertion portion 21d is closed.

In this state, as shown in FIG. 9, the operation knob 51b of the operation lever 51 is lifted and operated by the operator. When the operating lever 51 is lifted, the second sensor 83 is operated by the second dog 84, and the operation of the operating lever 51 is detected. The rotation of the operating lever 51 raises the inlet holding member 32 via the actuating engaging portion 51a. At this time, the rear end portion of the tape upper surface urging member 111 rises together with the inlet holding member 32 in a state where the tip end portion is in contact with the tape lower surface urging member 110.

As a result, the inlet holding member 32 is separated from the tape transport path 38, and the obstruction plate 56 is rotated by the downstream holding member 33. As a result, the tape insertion portion 21d is opened, and the carrier tape 900 or the embossed tape 910 can be inserted. At the same time, due to the rotation of the operating lever 51, the stopper member 31 is rotated by the cam portion 51c, and the stop portion 31c is brought into contact with the tape transport path 38.

First, a case where the first carrier tape 900A is inserted by an operator will be described. As shown in FIG. 9, the tip of the first carrier tape 900A is inserted through the tape insertion portion 21d into the tape transport path 38 in which the groove 38A is closed by the tape lower surface urging member 110. In this way, since the first carrier tape 900A is supported by the tape lower surface urging member 110, even if the first carrier tape 900A is easily bent, one side of the first carrier tape 900A is inside the groove 38A of the tape transport path 38. Will not drop out. At this time, since the tip of the first carrier tape 900A abuts on the first dog 82 and pushes down the first dog 82, the first sensor 81 detects that the first carrier tape 900A has been inserted.

Then, as shown in FIGS. 10 and 11, the tip of the first carrier tape 900A pushes up the tape upper surface urging member 111 abutting on the tape lower surface urging member 110, and the tape lower surface urging member 110 and the tape. It enters between the upper surface urging member 111 and is inserted to a predetermined position where it abuts on the stop portion 31c of the stopper member 31. At this time, the tip of the first carrier tape 900A abuts on the third dog 86 to rotate the third dog 86, so that the third sensor 85 indicates that the first carrier tape 900A has been inserted at a predetermined position. It detects and outputs a rotation instruction signal of the lever 51 for lowering the inlet holding member 32 to the control device 200.

Next, a case where the first embossing tape 910A is inserted by the operator will be described. As shown in FIG. 9, the tip of the first embossed tape 910A is inserted onto the tape transport path 38 through the tape insertion portion 21d. At this time, the embossed portion 904a is used to insert the tape lower surface urging member 110 into the groove 38A. Since it is pushed down toward the bottom surface (see FIGS. 12 and 13), it moves along the tape transport path 38. At this time, since the tip of the first embossed tape 910A abuts on the first dog 82 and pushes down the first dog 82, the first sensor 81 detects that the first embossed tape 910A has been inserted.

Then, as shown in FIGS. 12 and 13, the tip of the first embossed tape 910A pushes up the tape upper surface urging member 111 abutting on the tape lower surface urging member 110, and the tape lower surface urging member 110 and the tape. It enters between the upper surface urging member 111 and is inserted to a predetermined position where it abuts on the stop portion 31c of the stopper member 31. At this time, the tip of the first embossed tape 910A abuts on the third dog 86 to rotate the third dog 86, so that the third sensor 85 indicates that the first embossed tape 910A has been inserted at a predetermined position. It detects and outputs a rotation instruction signal of the lever 51 for lowering the inlet holding member 32 to the control device 200.

Then, the process proceeds to the next operation, but since there is no difference between the carrier tape 900 and the embossed tape 910 in the subsequent operations, the description in the embossed tape 910 will be omitted and the description will be given in the carrier tape 900. As shown in FIG. 9, when the first carrier tape 900A is inserted to a position where it abuts on the stop portion 31c, the operation of the operation lever 51 is released, and the operation lever 51 is moved by the urging force of the spring 55 in FIG. It rotates back to the original position indicated by the two-dot chain line. When the operation lever 51 returns to rotate, the inlet holding member 32 is lowered toward the tape transport path 38, and the inserted first carrier tape 900A is pressed toward the tape transport path 38.

As shown in FIG. 14, when the insertion of the first carrier tape 900A is detected and it is detected that the operation lever 51 has been rotated back to the original position (the second sensor 83 is turned off), the second servomotor 23 Is driven and the third and fourth sprockets 63, 64 are rotated. As a result, the engaging projection 64a of the fourth sprocket 64 is engaged with the engaging hole 901b of the first carrier tape 900A, and the first carrier tape 900A is conveyed to the third sprocket 63 side by the fourth sprocket 64.

By transporting the first carrier tape 900A by the fourth sprocket 64, the downstream side holding member 33 is lifted by the first carrier tape 900A against the urging force of the spring 35-1, and the first carrier tape 900A is held on the downstream side. It is conveyed between the member 33 and the tape transfer path 38.

At this time, since the engaging protrusion 64a of the fourth sprocket 64 is formed only on a part of the outer periphery of the fourth sprocket 64, when the engaging protrusion 64a engages with the engaging hole 901b of the first carrier tape 900A, , The first carrier tape 900A is intermittently moved to the third sprocket 63 side. As a result, the first carrier tape 900A is not suddenly drawn to the third sprocket 63 side. When the downstream side holding member 33 is lifted by the first carrier tape 900A, the stopper member 31 and the shaft support portions 31b and 86a of the third dock 86 are integrally raised.

When the engaging hole 901b formed in the first carrier tape 900A conveyed by the fourth sprocket 64 engages with the engaging projection 63a of the third sprocket 63, the first carrier tape 900A is moved to the second sprocket by the third sprocket 63. It is transported to the 62 side. Since the engaging projection 63a is formed on the outer circumference of the third sprocket 63 over the entire circumference, the first carrier tape 900A is conveyed to the second sprocket 62 side in a short time.

Further, the tip of the first carrier tape 900A penetrates below the levitation prevention member 28 from between the guide portion 28b and the tape transport path 38. The tip of the first carrier tape 900A is restrained from being lifted from the tape transport path 38 by the levitation prevention member 28, and is conveyed toward the second sprocket 62. When the fifth sensor 66 detects the tip of the first carrier tape 900A conveyed by the third sprocket 63, the first servomotor 22 and the second servomotor 23 intermittently insert the sprockets 61 to 64 at the pitch intervals of the parts. Rotate to.

When the engaging hole 901b formed in the first carrier tape 900A engages with the engaging projection 62a of the second sprocket 62, the first carrier tape 900A is sent to the tape peeling device 70 by the second sprocket 62, and the tape peeling device The cover tape 902 is peeled from the first carrier tape 900A by 70. Then, when the engaging hole 901b formed in the first carrier tape 900A engages with the engaging projection 61a of the first sprocket 61, the parts stored in the first carrier tape 900A by the first sprocket 61 are sequentially placed in the parts taking-out position. Positioned at 21a.

When the first carrier tape 900A is conveyed by the feeder 21, as shown in FIG. 14, the first carrier tape 900A presses the contact portion 31a of the stopper member 31, and the stopper member 31 presses the spring 36. It is rotated against the urging force of. As a result, the stop portion 31c of the stopper member 31 comes into contact with the upper surface of the first carrier tape 900A.

In that state, as described above, the operation lever 51 is rotated (the second sensor 83 is turned on), and the tip of the second carrier tape 900B is passed through the tape insertion portion 21d to the first carrier tape 900A and the inlet holding member. Insert between 32 and. Then, the tip of the second carrier tape 900B comes into contact with the stop portion 31c of the stopper member 31, and the second carrier tape 900B is stopped at that position.

As a result, the transfer of the second carrier tape 900B to the downstream is prevented, and the second carrier tape 900B stands by at that position. When the second carrier tape 900B is inserted to a position where it comes into contact with the stop portion 31c of the stopper member 31, the third dog 86 is operated by the second carrier tape 900B, so that the insertion of the second carrier tape 900B is the third sensor. Detected by 85.

When the operation of the operation lever 51 is released after the second carrier tape 900B is inserted, the operation lever 51 returns to the original position, but the first carrier tape 900A presses the contact portion 31a of the stopper member 31. The stop state of the second carrier tape 900B is maintained by the stop portion 31c of the stopper member 31. Even if the second carrier tape 900B is to be inserted from the tape insertion portion 21d without rotating the operation lever 51, the obstruction plate 56 that abuts on the upper surface of the first carrier tape 900A allows the second carrier tape 900B to be inserted. Insertion is blocked (see Figure 9).

When the rear end of the first carrier tape 900A is conveyed downstream of the tip of the second carrier tape 900B, the engaging hole 901b formed in the second carrier tape 900B becomes the engaging projection 64a of the fourth sprocket 64. Engage. After that, the second carrier tape 900B enters the gap between the tape transport path 38 made by the first carrier tape 900A and the stopper member 31, and is conveyed toward the second sprocket 62. When the tip of the second carrier tape 900B pushes up the contact portion 31a, as described above, the stopper member 31 is rotated again against the urging force of the spring 36, and the stopper member 31 makes a new carrier tape 900. Invasion is blocked.

(effect)
In the feeder 21 of the above-described embodiment, the carrier tape 910 formed by the parts storage portion 901d containing a plurality of parts protruding downward and the carrier tape 900 formed by the parts storage portion 901c not protruding downward are inserted. The feeder main body 21b in which the tape insertion portion 21d is formed at the rear portion and the carrier tapes 900 and 910 are conveyed from the rear to the front, so that both side walls 21ba of the feeder main body 21b communicate with the tape insertion portion 21d. , The tape transport path 38 provided between the 21bbs and the engaging projection 64a rotatably provided in the feeder main body 21b and engageable with the engaging holes 901b of the carrier tapes 900 and 910 inserted from the tape insertion portion 21d. It has a fourth sprocket 64 that has and sends out the carrier tapes 900 and 910 along the tape transport path 38.

Then, in the tape transport path 38, a groove 38A is formed through which the component storage portion 901d is passed when the carrier tapes 900 and 910 having the protruding component storage portion 901d are transported. When the carrier tapes 900 and 910 inserted from the tape insertion portion 21d have a component storage portion 901d in which the carrier tape 910 protrudes to the fourth sprocket 64, the carrier tape 910 is inserted in the groove 38A. When the carrier tape 900 has a component storage portion 901c that is pressed by the lower surface and deforms downward and the carrier tape 900 does not protrude, a tape lower surface urging member 110 that urges the lower surface of the carrier tape 900 is provided.

As a result, even if the carrier tape 900 having the component storage portion 901c that does not protrude is easily bent, when the carrier tape 900 is inserted into the tape transport path 38 from the tape insertion portion 21d, the lower surface of the tape of the carrier tape 900 is attached to the lower surface of the tape. It is supported by the force member 110. Therefore, it is possible to prevent one side of the carrier tape 900 from falling into the groove 38A of the tape transport path 38.

Further, the feeder 21 is provided on the feeder main body 21b, and has an inlet pressing member 32 that presses the carrier tapes 900 and 910 inserted from the tape inserting portion 21d toward the tape transport path 38, and the inlet pressing member 32 is urged to the lower surface of the tape. A tape upper surface urging member 111, which is provided so as to face the member 110 and urges the upper surface of the carrier tapes 900 and 910 inserted from the tape insertion portion 21d, is provided. As a result, the carrier tapes 900 and 910 can move smoothly on the tape transport path 38 because the upper and lower surfaces of the tape are sandwiched between the tape lower surface urging member 110 and the tape upper surface urging member 111.

Further, since the tape lower surface urging member 110 and the tape upper surface urging member 111 are made of elastic bodies and the elastic modulus of the tape lower surface urging member 110 is smaller than the elastic modulus of the tape upper surface urging member 111, the carrier tape 900 Can move along the upper surface of the tape transport path 38 without rising from the upper surface of the tape transport path 38 when the upper and lower surfaces of the tape are sandwiched between the tape lower surface urging member 110 and the tape upper surface urging member 111. Further, in the embossed tape 910, when the upper and lower surfaces of the tape are sandwiched between the tape lower surface urging member 110 and the tape upper surface urging member 111, the tape is conveyed in a state where the tape lower surface urging member 110 is deformed downward by the embossed portion 904a. It can move along the upper surface of the road 38 without rising from the upper surface.

Further, the feeder 21 is provided on the feeder main body 21b on the downstream side of the fourth sprocket 64 in the tape transport path 38, and the carriers are brought into contact with the tips of the carrier tapes 900 and 910 inserted from the tape insertion portion 21d. A third sensor 85 and a third dog 86 for detecting the tapes 900 and 910 are provided. Since the tape upper surface urging member 111 is provided at least up to the arrangement position of the third sensor 85 and the third dog 86, the tips of the carrier tapes 900 and 910 are surely hit against the third sensor 85 and the third dog 86. Can be touched.

Further, the feeder 21 is provided on the feeder main body 21b, and includes a rotatable lever 51 that raises the inlet holding member 32 when the carrier tapes 900 and 910 are inserted from the tape inserting portion 21d. Then, when the third sensor 85 and the third dog 86 detect the carrier tapes 900 and 910, they output a rotation instruction signal of the lever 51 for lowering the inlet holding member 32, so that the carrier tape is used by the inlet holding member 32. The 900 and 910 can be reliably suppressed.

(others)
In the above-described embodiment, the tape lower surface urging member 110 and the tape upper surface urging member 111 are provided, but only the tape lower surface urging member 110 may be provided. Further, the tape upper surface urging member 111 has a configuration in which the front end portion is bent downward in an L shape to urge the upper surface of the carrier tape 900 or the embossed tape 910 at the tip end portion. However, depending on the flexibility of the carrier tape 900, the upper surface of the carrier tape 900 may be urged over a wide range at the front end as an L-shaped bend from the rear end side to the width of the carrier tape 900. You may try to prevent twisting in the direction. Further, although the tape lower surface urging member 110 and the tape upper surface urging member 111 are made of a strip-shaped leaf spring, they may be made of an elastic body such as a compression coil spring or a rubber material to which a plate material is attached. The present invention is not limited to the configuration described in the above-described embodiment, and various forms can be adopted without departing from the gist of the present invention described in the claims.

21 ... Feeder, 21b ... Feeder body, 21ba, 21bb ... Side wall, 21d ... Tape insertion part, 32 ... Entrance holding member, 38 ... Tape transport path, 38A ... Groove, 51 ... Operation lever, 64 ... 4th sprocket, 64a ... Engagement protrusion, 85 ... 3rd sensor, 86 ... 3rd dog, 100 ... Parts mounting machine, 110 ... Tape bottom surface urging member, 111 ... Tape top surface urging member, 900 ... Carrier tape, 910 ... Embossed tape, 901a ... Through hole, 901b ... Engagement hole, 901c, 901d ... Parts storage unit.

Claims (3)

The feeder body, in which the tape insertion part for inserting the carrier tape and embossed tape is formed at the rear,
A tape transport path provided between both side walls of the feeder body so as to communicate with the tape insertion portion and transport the carrier tape and the embossed tape from the rear to the front.
A groove formed in the tape transport path and passing the component storage portion of the embossed tape,
It has an engaging protrusion that can be engaged with the engaging holes of the carrier tape and the embossed tape, and is first inserted from the tape insertion portion along the tape transport path with respect to the engaging holes of the carrier tape and the embossed tape. The rear sprocket provided at the position where it engages with,
It is provided in the groove formed in the tape transport path between the tape insertion portion and the rear side sprocket, and when the carrier tape is inserted, the lower surface of the carrier tape is urged upward and the embossed tape is inserted. In that case, the tape bottom surface urging member that is pressed downward and deformed by the parts storage part of the embossed tape,
A tape upper surface urging member provided in the upper portion near the groove and urging the upper surface of the carrier tape or embossed tape tape downward.
Feeder with. A feeder body in which a tape insertion portion for inserting a carrier tape or an embossed tape having a component storage portion protruding downward is formed at the rear.
A tape transport path provided between both side walls of the feeder body so as to communicate with the tape insertion portion and transport the carrier tape or embossed tape from the rear to the front.
The feeder body is rotatably provided and has an engaging protrusion that can be engaged with the engaging hole of the carrier tape or embossed tape inserted from the tape insertion portion, and the carrier tape or embossed tape is conveyed to the tape. Rear sprocket to be delivered along the road,
A groove formed in the tape transport path and passing through the component accommodating portion when transporting the embossed tape,
The embossed tape is provided in the groove so as to close the groove from the tape insertion portion toward the front, and the component accommodating portion is formed so as to project downward, and is pressed by the lower surface of the component accommodating portion during transportation. And the tape bottom surface urging member that deforms downward
A feeder provided in the upper portion near the groove and provided with a tape upper surface urging member that urges the upper surface of the carrier tape or the embossed tape tape downward . A feeder body in which a tape insertion part is formed at the rear, which selectively inserts a carrier tape and an embossed tape having a component storage part protruding downward unlike the carrier tape.
A tape transport path provided between both side walls of the feeder body so as to communicate with the tape insertion portion and transport the carrier tape or embossed tape from the rear to the front.
The feeder body is rotatably provided and has an engaging protrusion that can be engaged with the engaging holes of the carrier tape and the embossed tape inserted from the tape insertion portion, and the carry tape or the embossed tape is conveyed to the tape. Sprocket to be sent along the road and
A groove formed in the transport path between the tape insertion portion and the sprocket and through which the protruding portion of the embossed tape passes.
A tape lower surface urging member provided in the groove and pressed by the lower surface of the embossed tape to deform downward until the embossed tape inserted from the tape insertion portion reaches the sprocket .
A feeder provided in an upper portion in the vicinity of the groove and provided with a tape upper surface urging member for urging the upper surface of the carrier tape or embossed tape tape downward .

Images