JP2010114178A - Component supply device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a component supply device capable of supplying a component to a component supply position in an appropriate state. <P>SOLUTION: A carrying path 23c supporting a carrier tape 18a from which a cover tape 18b is peeled off includes the upper surface of support walls 31 and 32, a notched recess 22a is formed on a body case 22, and a sprocket 54 is installed inside the notched recess 22a while protruding a pawl 54a positioned on the upper end side upwards from an opening 31c. Then, a carrier tape support member 24 is provided on the outer side of the body case 22 so as to cover the upper outer side face side of the sprocket 54, and the part positioned on the outer side of the sprocket 54 in the carrier tape 18a is supported by the upper end of the carrier tape support member 24. Also, a tape guide 40 is installed above the carrying path 23c and the carrier tape 18a is pressed to the side of the carrying path 23c. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a component supply apparatus that supplies a component such as an IC to a component extraction position using a component supply tape as a carrier.

  2. Description of the Related Art Conventionally, surface mounters for mounting electronic components such as chip components and ICs on printed boards have been used. Such a surface mounting machine is equipped with a component supply device that supplies components to a component pick-up position in a moving range of a head unit that sucks and conveys components in the X-axis, Y-axis, and Z-axis directions (for example, Patent Document 1). This tape feeder (part supply device) includes a plurality of pockets (accommodating portions) formed at intervals and a plurality of engagement holes formed at intervals on one side of the pocket ( It is an apparatus for transporting a tape (component supply tape) configured by storing electronic components (components) in pockets of a carrier tape and affixing a cover tape on the upper surface of the tape. This tape is flexible enough to be wound around a supply reel.

  And this tape feeder is equipped with the sprocket provided with the nail | claw part which can be engaged with the engagement hole of a tape, and a sprocket is rotated intermittently in the state which engaged the nail | claw part and the engagement hole. Thus, the tape is transported along the upper end surface of the tape feeder main body. Also, when each electronic component in the pocket reaches a predetermined position, the cover tape is peeled off from the tape, and when the sprocket is stopped, the head portion attached to the main body side of the electronic component mounting apparatus (surface mounting machine) An electronic component is adsorbed by the nozzle and taken out. The tape from which the electronic component is taken out is pushed forward by the rotation of the sprocket.

Also, in the vicinity of the sprocket, the bottom surface of the tape is supported by the upper end surface of the tape feeder body, and the top surface of the tape is between the upper position of the pickup position where the electronic component is taken out by the nozzle and the upstream position in the feed direction. Covered with a movable shutter. Furthermore, a pressing member that presses the tape against the outer peripheral surface of the sprocket is disposed downstream of the pickup position in the feeding direction. And the upper end surface of the tape feeder main body which supports the pocket of a tape leaves | separates from the outer peripheral surface of a sprocket so that a nail | claw part may remove | deviate from an engagement hole when a tape passes a sprocket.
Japanese Patent Laid-Open No. 9-31296

  In the tape feeder described above, the claw portion protrudes from the upper end surface of the sprocket body, so that the engagement hole in the tape is in a period from when the claw portion is engaged with the engagement hole until the engagement is released. The peripheral edge part moves down relative to the claw part and then moves up relatively. That is, until the claw portion engages with the peripheral portion of the engagement hole and reaches the upper end of the sprocket, the tape is pressed by the shutter, and the peripheral portion of the engagement hole in the tape is relative to the claw portion. Move down to. The tape is relatively pushed up by the upper end surface of the tape feeder body until the claw portion reaches the position where the engagement with the peripheral edge portion of the engagement hole is released from the upper end of the sprocket. The peripheral edge part of the engagement hole in the slidably moves upward relative to the claw part.

  In addition, a feeding force acts between the peripheral edge of the engagement hole and the claw, and during the downward movement or upward movement of the tape, Slip occurs. When the tape is instantaneously moved by the stick or slip, an impact force is generated, and this impact force is transmitted to a pocket located near the pickup position of the tape. Then, the suction of the nozzles may be generated by changing the posture of the electronic component in the pocket. In order to prevent the occurrence of such a problem, it is necessary to eliminate the momentary movement of the tape up and down.

  However, in the conventional tape feeder, the tape can be pressed against the upper end surface of the tape feeder body below the portion where the sprocket protrudes on the upper end surface of the tape feeder body, but more than the portion where the sprocket protrudes. In the outer portion, an opening for projecting the upper end portion of the sprocket is formed on the upper end surface of the tape feeder main body, so there is no portion for supporting the lower surface of the tape. For this reason, sticks and slips generated in the claw portion of the sprocket cannot be effectively prevented.

  The present invention has been made to cope with such problems, and an object of the present invention is to provide a component supply device that can supply components in a proper state to a component supply position.

  In order to achieve the above-described object, the structural features of the component supply device according to the present invention include a plurality of storage portions formed at intervals in the longitudinal direction and a plurality of storage portions formed on the sides of the plurality of storage portions. Each component is accommodated in a carrier tape accommodating portion having an engaging hole, and a component supply tape configured by attaching a cover tape covering the accommodating portion to the upper surface of the carrier tape can be engaged with the engaging hole. Multiple claw parts are transported by the rotation of a sprocket formed on the outer peripheral surface, and when each part in the housing part reaches a predetermined position, the cover tape can be peeled off from the carrier tape and the part in the housing part can be taken out And a sprocket that has a transport path for supporting the carrier tape from which the cover tape has been peeled formed on the upper surface of the support wall, and whose upper surface is open on the outer side corresponding to the engagement hole in the support wall. And a sprocket is installed in the recess with a predetermined claw portion located on the upper end side of the plurality of claw portions protruding upward from the open portion of the upper surface of the recess. A carrier tape support member is provided on the outer side of the support wall so as to cover the upper outer surface side of the sprocket with a gap, and the carrier tape support member is positioned on the outer side of the sprocket in the carrier tape at the upper end of the carrier tape support member. It is to support the part.

  In the above-described component supply device according to the present invention, a concave portion whose upper surface is opened on the outer side corresponding to the engagement hole of the carrier tape in the support wall portion is configured with the conveyance path for supporting the carrier tape on the upper surface of the support wall portion. And a sprocket is installed in the recess. And the predetermined claw part located in the upper end side of a sprocket protrudes upwards from the opening of a support wall part, and is made to engage with the engagement hole of a carrier tape. Further, a carrier tape support member is provided on the outer side of the support wall so as to cover the upper outer surface side of the sprocket with a gap, and an engagement hole (sprocket of the sprocket) is formed at the upper end of the carrier tape support member. The part located on the outer side of the claw part) is supported.

  For this reason, the part located on both sides of the sprocket in the carrier tape can be supported by the upper surface of the support wall and the upper end of the carrier tape support member, and the end of the carrier tape on the sprocket side sinks downward. Can be prevented. The support wall portion is configured by a portion including at least an upper surface portion and both side surface portions in the vicinity of a portion where the sprocket is installed in the main body of the component supply device.

  Further, another structural feature of the component supply apparatus according to the present invention is that the pressing member for pressing the carrier tape from which the cover tape has been peeled to the upper surface side of the supporting wall portion and the upper end portion side of the carrier tape supporting member is the supporting wall portion. And being installed above the carrier tape support member.

  According to this, both sides of the carrier tape and the inner part of the engagement hole can be pressed by the holding member against the upper surface of the support wall and the upper end of the carrier tape support member, and the carrier tape is the main part of the sprocket. It is possible to prevent sticks and slips from being generated from the outer peripheral surface of the sprocket and sticking to the claw portion of the sprocket. The slip generated in the carrier tape rises with the rotation of the sprocket while the carrier tape is fixed to the claw due to the friction between the peripheral edge of the engagement hole and the claw, and lowers the carrier tape due to the tension rather than the static friction force. It occurs at the moment when the force increases, and does not occur unless the carrier tape is once raised. For this reason, it can prevent effectively that a slip arises by preventing that a carrier tape lifts from the outer peripheral surface of the main-body part of a sprocket.

  Still another structural feature of the component supply apparatus according to the present invention is that the carrier tape support member is formed of a thin plate-like member and is fixed to the outer portion of the support wall portion by a screw member. According to this, the carrier tape support member can be easily attached without increasing the size of the component supply device.

  Further, another structural feature of the component supply device according to the present invention is that the upper surface of the support wall portion that supports the carrier tape from which the cover tape is peeled and the upper end portion of the carrier tape support member have the same height. They are arranged parallel to each other. According to this, it is possible to prevent the carrier tape conveyed near the sprocket from being twisted or tilted. In this case, it is preferable that the height of the upper end of the sprocket main body is also equal to the height of the upper surface of the support wall and the upper end of the carrier tape support member.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a surface mounter 10 provided with a plurality of component supply devices 20 according to the embodiment. This surface mounter 10 has a component B such as an IC chip on a printed circuit board A (see FIG. 2). ). The surface mounter 10 is installed on the base 11, a pair of conveyors 12 for installing the printed circuit board A at a predetermined installation position on the base 11, and an installation position of the printed circuit board A, which will be described later. A head unit 13 that moves in the X direction (left-right direction in FIG. 1) and Y direction (front-rear direction in FIG. 1 in the up-down direction in FIG. 1) by the operation of each drive device, and suction nozzles ( (Not shown) each have a pair of cameras 14 that capture the picked-up components B.

  The pair of conveyors 12 extends on the base 11 in the left-right direction at a constant interval in the front-rear direction in accordance with the length of the front-rear direction of the printed circuit board A, and the plurality of printed circuit boards A are arranged upstream of the X direction. To the downstream side and sequentially transport to the installation position. When the mounting of all the components B to be mounted on the printed circuit board A at the installation position is completed, the printed circuit board A is transported further downstream in the X direction. In addition, a pair of Y rail units 15 extend in the front-rear direction at regular intervals on the left and right above the pair of conveyors 12 on both the left and right sides of the base 11, and the X rail unit is connected to the pair of Y rail units 15. 16 is stretched in a state where it can move in the front-rear direction. The head unit 13 is attached to the X rail unit 16 so as to be movable in the left-right direction.

  The X rail unit 16 moves in the front-rear direction by driving of a driving device including a ball screw 15a provided on one of the Y rail units 15 (Y rail unit 15 arranged on the right side), and the head unit 13 is moved to the X rail. It moves in the left-right direction by driving of a driving device including a ball screw 16 a provided along the front side portion of the unit 16. Further, the head unit 13 includes elevating means for individually elevating and lowering the plurality of heads 13a and a rotating device for individually rotating the plurality of heads 13a in the rotation direction. The plurality of heads 13a are arranged in the Z direction (up and down). The head unit 13 is supported so as to be movable in the direction (direction) and rotatable about the Z axis (rotation direction).

  For this reason, the head unit 13 can move on the base 11 within an installation range (movement range) of the pair of Y rail units 15 and X rail units 16. Further, a suction device (not shown) is connected to the suction nozzle of the head 13a, and the suction nozzle sucks and picks up the component B with the suction force generated by the operation of the suction device. Then, the pair of cameras 14 picks up the part B picked up by the pick-up nozzle, and the picked-up image picked up by the pair of cameras 14 is used for determining whether the pick-up posture of the part B is good or not.

  A plurality of component supply devices 20 are installed on the four carts 17 in the same direction, and the carts 17 on which the component supply devices 20 are installed are arranged on the left and right sides of the pair of conveyors 12 respectively. Are arranged at intervals. In this case, each component supply device 20 is in a state in which the component B take-out side faces the conveyor 12 and the component take-out position a (see FIG. 4) is positioned within the movement range of the head unit 13. The component supply device 20 arranged in this way conveys the component B accommodated in the component supply tape 18 shown in FIG. 2 from a position away from the conveyor 12 to the conveyor 12 side.

  The component supply tape 18 includes a carrier tape 18a and a cover tape 18b having a width smaller than that of the carrier tape 18a. The carrier tape 18a is formed with a plurality of accommodating portions 18c formed of concave portions having a rectangular shape in plan view with a constant interval in the longitudinal direction, and at a constant interval on one side of the plurality of accommodating portions 18c. A plurality of engagement holes 18d are formed. The cover tape 18b is attached to a portion of the upper surface of the carrier tape 18a excluding a portion where the plurality of engagement holes 18d are formed so as to cover the plurality of storage portions 18c. The component B is accommodated inside each accommodating portion 18c, and the component B can be taken out by peeling the cover tape 18b from the carrier tape 18a.

  The component supply tape 18 is installed in the rear portion of the component supply device 20 while being wound around a reel. Note that in the component supply device 20, the direction in which the reel is arranged is the rear and the direction in which the component B is conveyed is the front. Accordingly, in FIG. 1, in the component supply device 20 disposed in front of the pair of conveyors 12, the front of the surface mounter 10 is the rear of the component supply device 20, and the rear of the surface mounter 10 is the component supply device 20. Be ahead. Further, in FIG. 1, in the component supply device 20 arranged behind the pair of conveyors 12, the front of the surface mounter 10 is the front of the component supply device 20, and the rear of the surface mounter 10 is the component supply device 20. Be behind.

  As shown in FIG. 3, the component supply device 20 is configured by connecting a main body case 22 to a front end portion of a housing case 21 disposed on the rear side (left side in FIG. 3) to form an outer portion. As shown in FIG. 4, a conveyance path 23 a through which the component supply tape 18 passes is formed in the lower part in the housing case 21, and the main body case 22 communicates with the conveyance path 23 a from the rear lower part. A conveyance path 23b extending at an angle to the upper front is formed. Further, a guide portion 30 for guiding the component supply tape 18 to the component extraction position a and a delivery portion 50 for conveying the component supply tape 18 are installed on the front side of the main body case 22, and on the rear side of the main body case 22. A take-up portion 60 is provided for pulling back the cover tape 18b peeled off from the carrier tape 18a.

  The housing case 21 is configured by a substantially rectangular thin box having a length in the front-rear direction that is longer than the vertical direction. Further, a cover tape collecting portion 21a for accommodating a cover tape 18b peeled off from the carrier tape 18a by a take-off portion 60 described later is formed on the upper side of the transport path 23a inside the housing case 21. The main body case 22 has the same width as that of the housing case 21, the length in the vertical direction is slightly shorter than the length in the vertical direction of the housing case 21, and the length in the front and rear direction is longer than the length in the front and rear direction of the housing case 21. It is comprised by the thin box which became a little longer, and is connected with the storage case 21 in the state which located the rear part side of the lower end surface on the same surface as the lower end surface of the storage case 21.

  The rear end side portion of the conveyance path 23b formed in the main body case 22 is configured by a horizontal portion that is smoothly connected to the front end portion of the conveyance path 23a, and the front side portion of the horizontal portion in the conveyance path 23b is oblique. The upper part of the main body case 22 is reached on the front side of the main body case 22 along an upward path. The front end side portion of the transport path 23b is connected to a transport path 23c that extends substantially forward in the horizontal direction at the top of the main body case 22.

  As shown in FIG. 5, the guide portion 30 includes a transport path 23 c configured by an upper surface of a pair of support wall portions 31 and 32 positioned on the front end side of the transport path 23 b and an upper end portion of the carrier tape support member 24. The tape guide 40 (the holding member according to the present invention) attached above the support wall portions 31 and 32, and the front portion for fixing the tape guide 40 to the upper surface of the main body case 22 according to the support wall portions 31 and 32 The holding unit 34 and the rear holding unit 37 are configured. The conveyance path 23 c forms a groove 33 between the support wall 31 and the support wall 32 having a width (thickness) smaller than that of the support wall 31, and a carrier tape on the outer side of the support wall 31. The support member 24 is attached, and the upper surfaces of the support wall portions 31 and 32 are smoothly connected to the bottom surface of the transport path 23b.

  That is, the rear side portions of the upper surfaces of the support wall portions 31 and 32 are connected to the bottom surface of the conveyance path 23b that is obliquely upward and forward, and obliquely forward and upward, and are smoothly curved and substantially horizontal on the front side. Yes. Further, on the front side of the horizontal surfaces 31a and 32a formed at the center of the upper surface of the support wall portions 31 and 32, downward inclined surfaces 31b and 32b that gently descend in front of the horizontal surfaces 31a and 32a are formed. The bottom surface of the transport path 23b heading obliquely upward above, the surfaces such as the horizontal surfaces 31a and 32a formed on the upper surfaces of the support wall portions 31 and 32, and the downward inclined surface 31b that gently descends in front of the horizontal surfaces 31a and 32a, 32b is a smoothly continuous support surface that supports the carrier tape 18a from which the component supply tape 18 and the cover tape 18b have been peeled from below.

  Further, the bottom surface of the groove 33 extends slightly obliquely upward and forward to the horizontal surfaces 31a and 32a so as to gradually widen the distance from the upper end portion (front end portion) of the bottom surface of the conveyance path 23b to the upper surfaces of the support wall portions 31 and 32. Corresponding portions extend forward with a constant spacing from the horizontal surfaces 31a, 32a. The component supply tape 18 includes one in which the lower surface of the carrier tape 18a is flat, and one in which the lower portion of the accommodating portion 18c of the carrier tape 18a protrudes downward from the lower surface of the other portion. The groove portion 33 is configured such that the lower surface of the housing portion 18 c is not in contact with the upper surface of the main body case 22 by supporting the component supply tape 18 from which the lower surface of the housing portion 18 c protrudes at the upper ends of both side portions of the main body case 22. is there.

  For this reason, while the component supply tape 18 conveyed from the rear side to the front side of the component supply device 20 passes from the conveyance path 23a to the vicinity of the upper end portion of the conveyance path 23b, the lower surface of the accommodating portion 18c or the carrier tape. The lower surface of 18a is moved in contact with the bottom surfaces of the conveyance path 23a and the conveyance path 23b. And when the component supply tape 18 reaches | attains the horizontal part of the conveyance path 23c, the both-sides edge part of the carrier tape 18a will be supported by the horizontal surfaces 31a and 32a of the support wall parts 31 and 32. FIG. As a result, the portion along the longitudinal direction of the lower surface of the housing portion 18 c or the portion of the lower surface of the carrier tape 18 a where the housing portion 18 c is formed is not in contact with the bottom surface of the groove portion 33.

  FIG. 6 shows a state in which the main body case 22 is viewed from one side surface, and a circular notch recess 22a (in the present invention) for installing a sprocket 54 of a delivery unit 50 described later is provided on this side surface portion. Such a recess) is formed. The upper end portion of the notch recess 22a reaches the upper surface of the support wall portion 31 and forms an opening 31c on the outer side of the portion extending from the front side of the horizontal surface 31a and the rear side of the descending inclined surface 31b. Yes. By forming the opening 31c, the width of the upper surface of the support wall 31 is narrowed in the middle from the horizontal surface 31a to the descending inclined surface 31b. Also, shallow mounting recesses 22b and 22c for mounting the carrier tape support member 24 are formed on both front and rear sides of the upper end portion of the cutout recess 22a on one side surface of the main body case 22.

  As shown in FIG. 7, the carrier tape support member 24 is made of a metal plate that is long in the front-rear direction and has a small thickness, and screw insertion holes 24a, 24b are formed in the front-rear direction. And the upper end edge part of the carrier tape support member 24 is formed in the same shape as the part which opposes the opening part 31c in the upper end edge part of the support wall part 32, The center side part of the lower end edge part of the carrier tape support member 24 is Continuing with the inner peripheral edge of the notch recess 22a, the notch recess 22a is formed in an arc shape that can form a substantially circular recess. When the carrier tape support member 24 is fixed to the mounting recesses 22b and 22c of the main body case 22 by the screw members 25a and 25b and is fixed to the main body case 22, the carrier tape support member 24 is in the state shown in FIG.

  In this case, the rear side of the upper end portion of the carrier tape support member 24 is smoothly connected to the horizontal surface 31 a of the support wall portion 31, and the front side of the upper end portion of the carrier tape support member 24 is the downward inclined surface of the support wall portion 31. It continues smoothly with 31b. Further, a slight gap is formed between the inner surface and lower end of the carrier tape support member 24 and the sprocket 54 so that the sprocket 54 does not contact the carrier tape support member 24.

  Further, an arc-shaped protruding portion 22d protruding upward is formed at a portion corresponding to the opening 31c in the upper portion of the other side surface portion of the main body case 22 shown in FIG. The upper end of the protruding portion 22 d reaches the vicinity of the horizontal surface 32 a of the support wall portion 32. That is, the conveyance path 23c is formed so as to protrude upward from both side surface portions of the main body case 22, and a predetermined distance is provided between the upper ends of both side surface portions of the main body case 22 and the upper surfaces of the support wall portions 31 and 32. A step is formed. Side surfaces 41 and 42 of a tape guide 40 to be described later are fitted into the respective steps. The side wall portions of the main body case 22 and the support wall portions 31 and 32 constitute a support wall portion according to the present invention.

  The tape guide 40 is made by integrally molding a hard resin by injection molding, and is composed of an elongated member that can cover a portion of the upper surface of the main body case 22 from the front end side portion of the conveyance path 23b to the conveyance path 23c. Has been. The outer width of the tape guide 40 is the same as the width of the main body case 22. As shown in FIG. 9, the tape guide 40 includes a pair of side surface portions 41 and 42 arranged in parallel and an upper surface portion that connects the upper end side portions of the opposing surfaces of the side surface portions 41 and 42 along the longitudinal direction. 43. The width between the inner surfaces of the side surface portion 41 and the side surface portion 42 is slightly larger than the width between the outer surface of the support wall portion 31 and the support wall portion 32, and the tape guide 40 is fitted to the support wall portions 31 and 32 from above. It is possible.

  Each of the side surfaces 41 and 42 has a lower edge formed in a plate shape along the upper edge of the corresponding side surface of the main body case 22 (excluding the portion where the notch 22a is formed). An arc-shaped cutout recess 42a (see FIG. 5) into which the protrusion 22d can be fitted is formed in the lower portion on the front side of 42. And hook-shaped latching | locking part 41b, 42b which made the open | release side upwards is formed in the front-end lower part of the side parts 41,42. The upper surface portion 43 is formed in a plate shape including a horizontal surface portion 43a and an inclined surface portion 43b, and a stainless steel bottom plate 44 is fixed to the back surface of the horizontal surface portion 43a. In a state where the tape guide 40 is attached to the support wall portions 31, 32, the bottom plate 44 fixed to the horizontal surface portion 43 a is located on the horizontal surfaces 31 a, 32 a on the upper surface of the support wall portions 31, 32 and the upper end portion of the carrier tape support member 24. It will be in the state along the rear side part.

  And the inclined surface part 43b will be in the state which followed the front part side part of the downward inclined surfaces 31b and 32b and the upper end part of the carrier tape support member 24 from the front part of the horizontal surfaces 31a and 32a. Further, the upper surface portion 43 is formed with an insertion hole 45 that is long before and after penetrating vertically and an escape window portion 46 that penetrates vertically in a portion near the side surface portion 41 on the side of the central portion of the insertion hole 45. The escape window portion 46 is for preventing interference of a claw portion 54a, which will be described later, formed on the outer periphery of the sprocket 54. Further, tapered protrusions 41c and 42c indicating the part extraction position a are formed on portions of the upper surface portion 43 corresponding to the substantially central position in the front-rear direction of the escape window portion 46 along the inner surfaces of the side surface portions 41 and 42. Is formed.

  The rear end portion of the insertion hole 45 includes a wide portion 45 a having a width that allows the cover tape 18 b of the component supply tape 18 to be inserted upward from below, and this portion includes a front portion of the bottom plate 44. The part side part is located. A slit 44a is formed in a portion of the bottom plate 44 that is positioned approximately at the center in the front-rear direction of the wide portion 45a, and a portion of the bottom plate 44 that is positioned in front of the slit 44a is configured by a front end portion 44b. The side edge portion 44c on the side surface portion 42 side in the front end portion 44b is slightly separated from the side surface portion 42, and the slit formed between the side edge portion 44c and the side surface portion 42 communicates with the slit 44a. Yes.

  A portion of the insertion hole 45 on the front side of the front end portion 44b of the bottom plate 44 is a component extraction portion 45b, and the projections 41c, 41 described above are formed on the side surface portions 41, 42 facing substantially the center of the component extraction portion 45b. 42c is formed. And the front part side of the component extraction part 45b in the insertion hole 45 is comprised by the elongate front-end part 45c. For this reason, the cover tape 18b peeled off from the carrier tape 18a of the component supply tape 18 is inserted upward from below at the front end 45c of the insertion hole 45, and the intermediate portion of the cover tape 18b is inserted into the side surface portion 42 and the side edge portion 44c. Can be fitted into the slit 44a through the gap.

  Then, the cover tape 18b can be reversed backward in the slit 44a, and the tip of the cover tape 18b can be engaged between a driving roller 63 and a pinch roller 64 of the take-up section 60 described later. That is, the rear edge part of the slit 44a located in the wide part 45a constitutes a turning part for changing the direction of the peeled cover tape 18b to the rear side of the component supply device 20.

  The component supply tape 18 is pressed toward the conveyance path 23c by the bottom plate 44 from the upper side with the cover tape 18b at a position behind the slit 44a. Further, at a position in front of the slit 44 a, both side portions of the carrier tape 18 a are pressed toward the conveyance path 23 c by the front end portion 44 b of the bottom plate 44 or the lower surface of the upper surface portion 43. The tape guide 40 has a function that the front side portion guides the front side of the carrier tape 18a with the component extraction position a indicated by the protrusions 41c and 42c as a boundary, and the rear side portion is the rear portion of the carrier tape 18a. It has a function of guiding the component supply tape 18 before the side and cover tape 18b are peeled off.

  Further, as shown in FIG. 10, the portions corresponding to the component extraction position a on the lower surface of the upper surface portion 43 of the tape guide 40 are pressing surfaces 47 a and 47 b positioned on both sides of the component extraction portion 45 b in the insertion hole 45, The pressing surface 47b is formed so as to sandwich the escape window 46 with the pressing surface 47b. In FIG. 10, the protrusions 41c and 42c are omitted. The pressing surface 47a presses the side of the carrier tape 18a where the engagement hole 18d is not formed to the horizontal surface 32a side of the support wall 32, and the pressing surface 47b accommodates the engagement hole 18d of the carrier tape 18a. A portion between the portion 18 c and the support wall 31 is pressed toward the horizontal surface 31 a. The pressing surface 47c presses the side portion of the carrier tape 18a where the engagement hole 18d is formed to the upper end portion side of the carrier tape support member 24. In addition, a lock pin 48 that connects the side surface portions 41 and 42 is provided on the opposing surface in the rear end side portion of the side surface portions 41 and 42.

  As shown in FIG. 5, the front holding portion 34 includes a holding member 35 rotatably attached to a projection 34 a with a support hole formed at the front end portion of the main body case 22 via a support shaft 34 b. , And an urging means (not shown) for urging the holding member 35 to rotate in the direction of the arrow b. The holding member 35 is composed of an L-shaped member having a horizontal portion extending in the front-rear direction when viewed from the side and a vertical portion extending upward from the front end portion thereof, and corresponds to an L-shaped corner portion. The portion to be supported is supported by the support shaft 34b. When the holding member 35 is rotated in the direction of the arrow b by the urging force of the urging means, the rear surface of the vertical portion comes into contact with the front end surface of the main body case 22.

  Further, a flat tape discharge path 35a and lock pieces 35b and 35c extending upward from both sides in the width direction are formed on the upper portion of the holding member 35. When the vertical portion of the holding member 35 is in contact with the front end surface of the main body case 22, the tape discharge path 35a is inclined downward so that the front side is located below the rear side, and the tape discharge path 35a An inclined surface that is continuous with the downward inclined surfaces 31b and 32b is formed. Further, the lock piece 35b is formed in a plate shape extending upward from one edge side of the tape discharge path 35a, and is substantially in the vertical direction at the rear edge portion in a state viewed from the width direction. A substantially triangular protruding portion protruding rearward is formed.

  A protrusion 36 a that can engage with the locking portion 41 b of the tape guide 40 is formed on the lower edge of the protruding portion. The lock piece 35c is formed in a plate shape having a height lower than that of the lock piece 35b. The lock piece 35c extends upward from the other edge side of the tape discharge path 35a and then protrudes obliquely rearward and upward. And the protrusion 36b which can be engaged with the latching | locking part 42b of the tape guide 40 is formed in the lower edge part of the protruded part facing the protrusion 36a. Further, at the upper end of the lock piece 35b, an operation portion 36c is provided that projects horizontally in the direction where the lock piece 35c is located.

  When the front end portion of the tape guide 40 is fixed to the main body case 22 by the front holding portion 34, first, the holding member 35 is moved in the direction indicated by the arrow b by operating the operation portion 36c against the urging force of the urging means. Rotate in the opposite direction. Then, after the tape guide 40 is installed at a predetermined position on the upper surface of the main body case 22, the operation of the operation unit 36c is released. As a result, the holding member 35 is rotated in the direction of the arrow b by the urging force of the urging means, the protrusions 36a and 36b engage with the locking portions 41b and 42b, and the front end portion of the tape guide 40 is fixed to the main body case 22. Is done.

  The rear holding portion 37 includes a holding member 38 installed behind the transport path 23c on the upper surface of the main body case 22, a pressing piece 39 rotatably attached to the holding member 38 via a support shaft 37a, and a pressing piece 39. And a spring 37b that urges to rotate in the direction of arrow c. The holding member 38 includes side portions 38c and 38d along both sides in the width direction of the main body case 22, and a connecting portion 38e that connects the side portions 38c and 38d at the front portion. Lock grooves 38a and 38b that allow the lock pin 48 of the tape guide 40 to be engaged are formed in the side surfaces 38c and 38d.

  The pressing piece 39 has an operation part 39a having a width that can be moved in the vertical direction between the side parts 38c and 38d of the holding member 38, and a part extending from the center part to the rear end part on the left and right sides of the lower surface of the operation part 39a. It is comprised by the side part 39b extended in this. Moreover, the front side part of the side part 39b protrudes below the other parts, and a shaft hole is formed in the protruding part. A shaft hole is also formed in the rear portion of the side surface portions 38c and 38d, and the pressing piece 39 is rotatable with respect to the holding member 38 through the support shaft 37a through both shaft holes. The spring 37b urges the rear part of the lower surface of the pressing piece 39 upward and rotates the pressing piece 39 in the direction of the arrow c, so that the space between the lock grooves 38a and 38b is moved upward at the front end of the pressing piece 39. Close from.

  When the rear end portion of the tape guide 40 is fixed to the main body case 22 by the rear holding portion 37, the pressing piece 39 is first pressed by pressing the rear portion of the operation portion 39a downward against the elastic force of the spring 37b. It rotates in the direction opposite to the direction of arrow c. Then, after the lock pin 48 of the tape guide 40 is installed in the lock grooves 38a and 38b, the pressing of the operation portion 39a is released. As a result, the pressing piece 39 is rotated in the direction of the arrow b by the elastic force of the spring 37b, and the front portion of the operating portion 39a presses the lock pin 48 downward, and the lock pin 48 and the lock grooves 38a, 38b are engaged. Is prevented from being released. As a result, the rear end portion of the tape guide 40 is fixed to the main body case 22.

  As described above, the tape guide 40 is installed on the conveyance path 23 c of the main body case 22, and the front end portion thereof is fixed to the main body case 22 by the front holding portion 34, and the rear end portion is fixed by the rear holding portion 37. It can be fixed to the case 22. When the tape guide 40 is attached to the main body case 22, the conveyance path through which the component supply tape 18 or the carrier tape 18 a passes is between the upper surface of the conveyance path 23 c and the lower surface of the upper surface portion 43 of the tape guide 40. In this case, the tape guide 40 presses the component supply tape 18 or the carrier tape 18a being transported from above, and restricts the component supply tape 18 or the carrier tape 18a from floating or tilting from the transport path 23c.

  The delivery unit 50 is a transport mechanism that pulls out the component supply tape 18 wound around the reel from the reel, and forwards the carrier tape 18a that has become an empty tape after component supply, as shown in FIG. It is arranged at the front part of the main body case 22. The delivery unit 50 is formed integrally with the delivery motor 51, the main gear 53 to which the driving force of the delivery motor 51 is transmitted through the four transmission gears 52a, 52b, 52c, and 52d, and the main gear 53. The disc-shaped sprocket 54 is formed. The sprocket 54 is installed in the notch recess 22 a of the main body case 22 while being rotatably supported by the support shaft 55, and is a transmission motor 51 that is transmitted via the transmission gears 52 a to 52 d and the main gear 53. Is intermittently rotated about the support shaft 55 by the driving force.

  On the outer peripheral surface of the sprocket 54, a plurality of claw portions 54a made of protrusions are provided at regular intervals in the circumferential direction. The intervals between the plurality of claw portions 54 a are set to be the same as the intervals between the plurality of engagement holes 18 d provided in the component supply tape 18. More precisely, the pitch of the claw portions 54a at the height position that is one-half the average thickness of the various component supply tapes 18 used from the outer peripheral surface of the main body portion where the claw portions 54a are provided is the engagement holes 18d. The pitch is the same. Further, the sprocket 54 is arranged so that the upper end position is a component take-out position a where the suction nozzle of the head unit 13 picks up the component B.

  At this time, the height of the upper end portion of the outer peripheral surface of the main body portion of the sprocket 54 is substantially the same height as the horizontal surface 31 a of the support wall portion 31 and the upper end portion of the carrier tape support member 24. Then, when the sprocket 54 rotates, the claw portion 54a on the upstream side in the rotational direction sequentially engages with the engagement hole 18d on the upstream side in the transport direction with reference to the component extraction position a, The component feeding tape 18 is conveyed from the upstream side to the downstream side by sequentially releasing the engagement of the claw portion 54a on the downstream side with the engagement hole 18d on the downstream side in the conveyance direction.

  The take-up unit 60 pulls the cover tape 18b backward from the component supply tape 18 conveyed by the sending unit 50 in synchronization with the conveyance by the sending unit 50, and peels the peeled cover tape 18b from the housing case 21. This is a mechanism for feeding the cover tape into the cover tape collecting portion 21a, and is disposed at the rear portion of the main body case 22 as shown in FIG. The take-up unit 60 includes a take-up motor 61, a main gear (not shown) to which the driving force of the take-up motor 61 is transmitted via four transmission gears 62a, 62b, 62c, 62d, The driving side roller 63 is integrally formed, and a pinch roller 64 that is in pressure contact with the driving side roller 63 and rotates as the driving side roller 63 rotates.

  The pinch roller 64 is attached to a front end portion of a lever 66 that is rotatably attached to the upper surface of the housing case 21 by a support shaft 65 so as to be rotatable about a shaft portion 65a. The spring member 67 is biased upward. Due to the urging force of the spring member 67, the outer peripheral surface of the pinch roller 64 comes into pressure contact with the outer peripheral surface of the drive side roller 63. Therefore, when the take-up motor 61 is driven in a state where the cover tape 18b is positioned between the drive side roller 63 and the pinch roller 64 that press the rear end portion of the lever 66 and are separated from each other, the drive side roller Due to the rotational force of 63 and the pressing force of the pinch roller 64, the cover tape 18b is pulled backward while the both surfaces are pressed against each other.

  The cover tape 18b is sequentially collected in the cover tape collecting unit 21a. In this case, the rotation direction of the driving roller 63 is the counterclockwise direction indicated by the arrow d in FIG. 4, and the rotation direction of the pinch roller 64 is the clockwise direction indicated by the arrow e. A housing box 26 for housing a control board and the like is disposed on the lower rear side of the main body case 22. A connector 27 is attached to the front end of the storage box 26. The connector 27 is electrically connected to a connector (not shown) attached to the carriage 17 side when the component supply device 20 is attached to the carriage 17, whereby the surface mounting is performed via the carriage 17. Power supply and various control signals are input from the machine 10. Further, the control board controls the component supply device 20 in cooperation with a control unit provided in the surface mounter 10. On the upper surface of the housing case 21, a grip portion 28 that is used when carrying the component supply device 20 is provided.

  When the component B is mounted on the printed circuit board A using the surface mounter 10 configured as described above, the component supply device 20 to which the tape guide 40 is attached is attached to the carriage 17 of the surface mounter 10. The state shown in FIG. In this case, the component supply tape 18 extends from the reel through the conveyance path 23a of the housing case 21 to the conveyance path 23b side of the main body case 22, and the tip thereof reaches the conveyance path 23c. Further, the cover tape 18 b is peeled off from the carrier tape 18 a at the slit 44 a portion of the bottom plate 44 of the tape guide 40, and the front end portion thereof is sandwiched between the driving roller 63 and the pinch roller 64. Further, as shown in FIG. 11, the engagement holes 18 d of the carrier tape 18 a are engaged with some claw portions 54 a on the upper end side of the sprocket 54.

  In the vicinity of the upper end of the sprocket 54, the side of the carrier tape 18a where the engagement hole 18d is not formed is supported by the pressing surface 47a of the tape guide 40 while being supported by the horizontal surface 32a of the support wall 32. It is prevented from floating from 32a. Further, the portion of the carrier tape 18a between the engagement hole 18d and the accommodating portion 18c is prevented from being lifted from the horizontal surface 31a by the pressing surface 47b of the tape guide 40 while being supported by the horizontal surface 31a of the support wall portion 31. Is done. The side of the carrier tape 18a where the engagement hole 18d is formed is supported by the pressing surface 47c of the tape guide 40 while being supported by the upper end of the carrier tape support member 24. It is prevented from floating from the upper end.

  In this state, when the sending motor 51 and the take-up motor 61 are driven synchronously, the driving force of the sending motor 51 is transmitted to the sprocket 54 via the transmission gears 52a to 52d and the main gear 53, and the sprocket 54 Begins to rotate. As a result, the component supply tape 18 is further unwound from the reel. While passing through the conveyance path 23a and the conveyance path 23b, the component supply tape 18 moves with the lower surface of the accommodating portion 18c or the entire lower surface of the carrier tape 18a in contact with the bottom surfaces of the conveyance path 23a and the conveyance path 23b. When the component supply tape 18 reaches the transport path 23c, both side edges of the carrier tape 18a are supported by the horizontal surfaces 31a and 32a of the support wall portions 31 and 32, and in the longitudinal direction of the portion where the accommodating portion 18c is formed. The along portion is fitted into the groove 33.

  Further, the driving force of the take-up motor 61 is transmitted to the driving side roller 63 via the transmission gears 62a to 62d and the main gear, and the driving side roller 63 starts to rotate and the pinch roller 64 according to the rotation of the driving side roller 63. Also rotates. Thereby, the cover tape 18b peeled off from the carrier tape 18a is sequentially sent into the cover tape collecting part 21a. The carrier tape 18a from which the cover tape 18b has been peeled is sent toward the component extraction position a on the transport path 23c. In front of the slit 44 a of the tape guide 40, the upper portion of the housing portion 18 c that houses the component B is covered with the front end portion 44 b of the bottom plate 44. Then, when reaching the vicinity of the component extraction position a, the upper portion of the carrier tape 18a is opened, and the component B in the housing portion 18c is exposed. The tension acting on the cover tape 18b by the driving force of the take-up motor 61 also acts as part of the feeding force of the component supply tape 18 from the reel.

  According to this, both side portions of the engagement hole 18d in the carrier tape 18a are sandwiched between the horizontal surface 31a of the support wall 31 and the pressing surface 47b of the tape guide 40, and the carrier tape supporting member 24 and the pressing surface 47c of the tape guide 40, respectively. The carrier tape 18a is engaged with the claw portion 54a of the sprocket 54 without being lifted upward. For this reason, the carrier tape 18a is conveyed in a stable state without sticking or slipping between the claw portion 54a and the peripheral edge portion of the engagement hole 18d. When the center of the accommodating portion 18c of the carrier tape 18a reaches the component take-out position a, the carrier tape 18a stops once and picks up the component B from which the suction nozzle of the head unit 13 is exposed.

  The carrier tape 18a after the component B is picked up is discharged to the outside of the component supply device 20 through the downward inclined surfaces 31b and 32b of the transport path 23c and the upper surface of the tape discharge path 35a. On the other hand, the cover tape 18b peeled off from the carrier tape 18a is taken backward by the take-up unit 60 and sent into the cover tape collecting unit 21a. The head unit 13 that has sucked the component B at the component pick-up position a moves to the installation position of the printed circuit board A, and the component B at the tip of the suction nozzle is imaged by the camera 14 while the head unit 13 is moving. . Based on this captured image, the state of the suction position shift of the component B is determined. If there is a suction position shift in the component B during the transfer, the position shift is corrected in the X direction, the Y direction, and the rotation direction, the suction nozzle is lowered, and the component B is mounted on the printed circuit board A. Is done.

  Thus, in the component supply apparatus 20 according to the present embodiment, the upper surface of the support wall portions 31 and 32 formed on the upper portion of the main body case 22 constitutes the transport path 23c that supports the carrier tape 18a, and A notch recess 22a is formed in the side surface portion on the support wall 31 side, and a sprocket 54 is installed in the notch recess 22a. And the claw part 54a located in the upper end side of the sprocket 54 protrudes upward from the opening part 31c of the conveyance path 23c, and is made to engage with the engagement hole 18d of the carrier tape 18a. Further, a carrier tape support member 24 is provided on the outer side of the main body case 22 so as to cover the upper outer surface side of the sprocket 54 with a gap, and the sprocket 54 in the carrier tape 18 a is formed at the upper end of the carrier tape support member 24. It supports the outer side part of.

  Therefore, portions of the carrier tape 18a located on both sides of the sprocket 54 can be supported by the upper surface of the support wall 31 and the upper end of the carrier tape support member 24, and the end of the carrier tape 18a on the sprocket 54 side is supported. It can prevent sinking downward. Further, a tape guide 40 that presses the carrier tape 18a from which the cover tape 18b has been peeled against the conveyance path 23c is installed above the conveyance path 23c. For this reason, the carrier tape 18a can be pressed against the upper surfaces of the support wall portions 31 and 32 and the upper end portion of the carrier tape support member 24, and the carrier tape 18a is lifted from the outer peripheral surface of the sprocket 54 to be claw portions 54a of the sprocket 54. Can prevent sticking and slipping.

  Moreover, the component supply apparatus and the surface mounter according to the present invention are not limited to the above-described embodiments, and can be implemented with appropriate modifications within the technical scope of the present invention.

It is the top view which showed the surface mounting machine provided with the components supply apparatus which concerns on one Embodiment of this invention. It is the perspective view which showed the component supply tape. It is the perspective view which showed the components supply apparatus. It is the longitudinal cross-sectional view which showed the inside of the components supply apparatus. It is the disassembled perspective view which showed the guide part with which a components supply apparatus is provided. It is the perspective view which showed the state by which the sprocket was attached to the main body case. It is the disassembled perspective view which showed the principal part of the components supply apparatus. It is the perspective view which showed the state which attached the carrier tape support member shown in FIG. 7 to the main body case. It is the perspective view which showed the tape guide. It is sectional drawing which showed the longitudinal cross-section in the components supply position of a components supply apparatus. It is a partially cutaway sectional view showing a state where a component supply tape is attached to the component supply device.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 18 ... Parts supply tape, 18a ... Carrier tape, 18b ... Cover tape, 18c ... Storage part, 18d ... Engagement hole, 20 ... Parts supply apparatus, 22 ... Main body case, 22a ... Notch recessed part, 22b, 22c ... For attachment Concave part, 23c ... conveying path, 24 ... carrier tape support member, 25a, 25b ... screw member, 31, 32 ... support wall part, 31a, 32a ... horizontal plane, 31c ... opening, 40 ... tape guide, 54 ... sprocket, 54a ... Claw part, A ... Printed circuit board, B ... Parts, a ... Parts extraction position.

Claims (4)

Each of the components is housed in the housing portion of the carrier tape having a plurality of housing portions formed at intervals in the longitudinal direction and a plurality of engagement holes formed on the sides of the housing portions, A component supply tape configured by attaching a cover tape covering the housing portion to the upper surface of the carrier tape is conveyed by rotation of a sprocket having a plurality of claw portions formed on the outer peripheral surface that can be engaged with the engagement holes. A component supply device that, when each component in the housing portion reaches a predetermined position, peels the cover tape from the carrier tape and allows the component in the housing portion to be taken out,
A transport path for supporting the carrier tape from which the cover tape has been peeled is configured by an upper surface of a support wall portion, and a recess for installing a sprocket having an upper surface opened in an outer portion corresponding to the engagement hole in the support wall portion. Forming the sprocket with the predetermined claw portion located on the upper end side of the plurality of claw portions protruding upward from the opened portion of the upper surface of the recess, and A carrier tape support member is provided on the outer side of the support wall so as to cover the upper outer surface side of the sprocket with a gap, and an outer side of the sprocket in the carrier tape at the upper end of the carrier tape support member A component supply apparatus characterized by supporting a portion located at the position.   A presser member for pressing the carrier tape from which the cover tape has been peeled off to the upper surface side of the support wall portion and the upper end portion side of the carrier tape support member is installed above the support wall portion and the carrier tape support member. The component supply apparatus according to 1.   The component supply device according to claim 1, wherein the carrier tape support member is configured by a thin plate-like member and is fixed to an outer portion of the support wall portion by a screw member.   The upper surface of the said support wall part which each supports the said carrier tape from which the said cover tape was peeled, and the upper end part of the said carrier tape support member were arrange | positioned in parallel at the same height position, The component supply apparatus according to any one of the above.

Images