JP7130013B2 - feeder - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeder for supplying components by feeding and moving a carrier tape containing components.

A feeder is used in a component mounter that mounts components on a circuit board (Patent Document 1). The feeder rotates a sprocket that engages feed holes formed at regular intervals in the transport direction of the carrier tape, thereby feeding and moving the carrier tape inserted into the insertion portion in the transport direction. As a result, the feeder supplies the component at the extraction section so that the component mounter can pick up the component.

In addition, the carrier tape is set in the feeder by rotationally driving the sprocket after the carrier tape is inserted into the feeding hole of the carrier tape to a prescribed position where the sprocket can be engaged. In Patent Document 2, when supplying carrier tape to a feeder in use in a component mounter, components are continuously supplied without connecting (splicing) the carrier tape in use and the carrier tape for supply. A feedable non-splicing feeder is disclosed.

In the non-splicing feeder, a carrier tape for replenishment is superimposed on the carrier tape in use, and the carrier tape for replenishment is inserted from the insertion portion of the feeder to a specified position. When the end of the carrier tape in use passes through the specified position, the feed holes of the supply carrier tape are engaged with the sprocket. The carrier tape for replenishment is fed and moved by rotating the sprocket.

JP 2012-069669 A JP 2011-211169 A

By the way, when the carrier tape is set in the feeder as described above, it is in a state of waiting for feeding movement by rotational driving of the sprocket at a prescribed position of the feeder. At this time, if a load is applied to the carrier tape in the pulling direction, the carrier tape may drop out of the feeder. SUMMARY OF THE INVENTION It is an object of the present invention to provide a feeder that prevents a carrier tape from slipping off while waiting for feeding movement.

In the feeder according to the present invention, the carrier tape is inserted from the insertion portion by rotational driving of the sprocket that engages the sprockets that are formed at regular intervals in the conveying direction of the carrier tape that stores electronic components at regular intervals. is moved along a conveying path to removably supply the electronic component at a take-out portion, the pressing member pressing the carrier tape against the sprocket; an engaging member engageable with the feed hole of the carrier tape, wherein the engaging member is biased from above the carrier tape and engages the feed hole to cause the insertion of the carrier tape. While restricting movement toward the unit side, it allows movement toward the take-out portion side, is directly or indirectly connected to the engaging member, and receives an operating force to forcibly move the engaging member. The releasing member, when the operating force is applied, releases the engaging member from the feed hole of the carrier tape to prevent the carrier tape from moving along the conveying path. The pressing member presses the first carrier tape against the sprocket side, and inserts the second carrier tape inserted from the insertion portion over the first carrier tape onto the sprocket side. and the engaging member is only in the feed hole of the second carrier tape with the first carrier tape and the second carrier tape interposed between the sprocket and the pressing member The engaging member is engaged to restrict the movement of the second carrier tape toward the insertion section while permitting movement toward the removal section .

According to such a configuration, the feeder retains the carrier tape inserted from the insertion portion by engaging the engagement member with the feed hole of the carrier tape. As a result, the carrier tape is reliably held even if a load is applied in the pull-out direction to the carrier tape waiting to be fed in the feeder.

It is a top view showing the whole mounter in an embodiment. It is a top view which shows some carrier tapes. It is an overall view showing a feeder. 4 is an enlarged view of the tape delivery unit of the feeder in FIG. 3; FIG. FIG. 4 is a diagram showing the initial state of the tape delivery unit; It is a figure which shows the state in which the carrier tape inserted contacted the auxiliary member. It is a figure which shows the state which the inclined surface and carrier tape of an engaging member contact. FIG. 10 is a diagram showing a state in which the transport tape T1 is prevented from coming off; FIG. 10 is a diagram showing a state in which the transport tape T1 is being fed; FIG. 10 is a diagram showing a state in which the supply tape T2 is retained; FIG. 10 is a diagram showing a state in which an operating force is applied to the release lever;

EMBODIMENT OF THE INVENTION Hereinafter, embodiment which actualized the feeder of this invention is described with reference to drawings. A feeder is used in a component mounter that mounts electronic components on a circuit board. The feeder feeds and moves a carrier tape containing electronic components at regular intervals, and supplies the components in a take-out section so that the components can be taken out.

<Embodiment> (Configuration of component mounter 1)
A configuration of the component mounter 1 will be described with reference to FIG. The component mounter 1 includes a board transfer device 2, a component supply device 3, a reel holder 4, a component transfer device 5, and a control device 6, as shown in FIG. In the following description, the horizontal width direction of the component mounter 1 (horizontal direction in FIG. 1) is defined as the X-axis direction, the horizontal longitudinal direction of the component mounter 1 (vertical direction in FIG. 1) is defined as the Y-axis direction, and the X-axis direction is defined as and the vertical direction perpendicular to the Y-axis (the front-rear direction in FIG. 1) is defined as the Z-axis direction.

The substrate conveying device 2 is composed of a belt conveyor or the like, and sequentially conveys the substrates Bd in the conveying direction. The board transfer device 2 positions the board Bd at a predetermined position inside the component mounter 1 . After the mounting process by the component mounter 1 is executed, the board transfer device 2 carries the board Bd out of the component mounter 1 .

The component supply device 3 supplies electronic components to be mounted on the board Bd. The component supply device 3 has a plurality of slots 3a arranged side by side in the X-axis direction. A feeder 20 is detachably set in each of the plurality of slots 3a. The component supply device 3 feeds and moves the carrier tape 80 by the feeder 20 to supply electronic components at the pick-up portion Nt located on the tip side of the feeder 20 (upper side in FIG. 1). Details of the configuration of the feeder 20 will be described later.

The reel holding unit 4 exchangeably holds a first reel 71 and a second reel 72 around which the carrier tape 80 is wound. The first reel 71 and the second reel 72 are arranged one by one in parallel in the Y direction with respect to each feeder 20 . That is, the reel holding section 4 is configured to be able to supply the carrier tape 80 from the first reel 71 and the second reel 72 to one feeder 20 .

The component transfer device 5 is configured to be movable in the X-axis direction and the Y-axis direction. The component transfer device 5 is arranged from the longitudinal rear side (upper side in FIG. 1) of the component mounter 1 to above the component supply device 3 on the front side. The component transfer device 5 includes a head driving device 11 and a mounting head 12 . The head driving device 11 is configured such that a moving table can be moved in the XY-axis directions by a direct-acting mechanism. The mounting head 12 is detachably mounted on the moving table of the head driving device 11 .

The mounting head 12 is also detachably provided with a plurality of suction nozzles (not shown). The mounting head 12 supports each suction nozzle rotatably about an R-axis parallel to the Z-axis and vertically movable. Each suction nozzle is controlled in its elevation position and angle with respect to the mounting head 12 and in the state of supply of negative pressure. Each suction nozzle is supplied with a negative pressure to suck and hold the electronic component supplied at the take-out portion Nt of the feeder 20 .

The control device 6 is mainly composed of a CPU, various memories, and a control circuit. The control device 6 has a storage device for storing mounting data for operating the component mounter 1 and image data transferred from the component camera and the board camera. The control device 6 performs image processing using the acquired image data. The control device 6 corrects the operations of the component supply device 3, the component transfer device 5, etc. based on the states of the electronic components and the circuit board Bd recognized by the image processing. Thereby, the control device 6 controls the mounting process by the component mounter 1 .

(Structure of carrier tape 80)
The configuration of the carrier tape 80 will be described with reference to FIG. The carrier tape 80 is wound around the first reel 71 and the second reel 72 held by the reel holding section 4 as described above. The carrier tape 80 accommodates a large number of components such as electronic components in a row. The carrier tape 80 has a base tape 81 and a cover tape 82, as shown in FIG.

The base tape 81 is made of a flexible material such as paper or resin. The base tape 81 has a component storage portion 81a formed in the central portion in the width direction (vertical direction in FIG. 2). The component storage portion 81a has a concave shape with a bottom. The component storage portions 81a are formed at regular intervals in the conveying direction of the base tape 81 (the longitudinal direction, which is the left-right direction in FIG. 2). One component is stored in each component storage portion 81a.

In addition, the base tape 81 has feed holes 81b formed in one edge portion in the width direction. The sprocket holes 81b are formed at regular intervals in the conveying direction of the base tape 81 . The sprocket holes 81b are formed to penetrate in the vertical direction (thickness direction of the carrier tape 80). In this embodiment, the interval between the feed holes 81b is set smaller than the interval between the component storage portions 81a.

The cover tape 82 is made of a thin polymer film. Both ends of the cover tape 82 in the width direction are adhered to the upper surface of the base tape 81 . As a result, the cover tape 82 closes the opening of the component storage section 81a. Such a configuration of the carrier tape prevents the components stored in the component storage portion 81a of the base tape 81 from falling off.

(Configuration of feeder 20)
A configuration of the feeder 20 will be described with reference to FIG. The feeder 20 is set in the slot 3 a of the component supply device 3 and supplied with the carrier tape 80 from the first reel 71 and the second reel 72 held by the reel holding section 4 . The feeder 20 feeds and moves the carrier tape 80 inserted from the insertion portion Ni, and supplies the components in the removal portion Nt so that the components can be removed.

In this embodiment, the feeder 20 is a non-splicing feeder capable of continuously supplying components without connecting (splicing) the carrier tape 80 in use and the carrier tape for replenishment. Specifically, the feeder 20 is in a state in which a supply carrier tape 80 (hereinafter also referred to as "supply tape T2") is superimposed above the carrier tape 80 in use (hereinafter also referred to as "transport tape T1"). (See FIG. 10). Then, when the transport tape T1 ends, the supply tape T2 starts to feed and move so as to follow the trailing edge of the transport tape T1.

The carrier tape T1 described above corresponds to the "first carrier tape" of the present invention. Further, the supply tape T2 corresponds to the "second carrier tape" of the present invention. The carrier tape T1 and the supply tape T2 are carrier tapes 80 that store components of the same type. Further, when the supply tape T2 starts to be fed by the feeder 20, it becomes the carrier tape 80 (conveyance tape T1) in use.

The feeder 20 includes a case 21, rails 22, a plurality of sprockets 31-34, a tape feeding unit 40, and a tape separating unit 50, as shown in FIG. The case 21 is formed in a flat box shape, is inserted into the slot 3a of the component supply device 3, and is fixed. The rail 22 is provided from the insertion portion Ni on the rear side of the case 21 to the removal portion Nt on the front side. The upper surface of the rail 22 constitutes part of the transport path of the carrier tape 80 .

Feeder 20 has a plurality of sprockets 31 to 34 rotatably provided below rail 22 . Each of the sprockets 31 to 34 is formed with a gear that can be engaged with the feed hole 81b of the carrier tape 80 on the outer peripheral surface thereof. The gears of the sprockets 31 to 34 partially protrude from the upper surface of the rail 22 through windows formed in the rail 22 .

Each of the sprockets 31-34 is rotationally driven by a stepping motor (not shown). Further, the sprockets 31 to 34 are synchronously rotatable by controlling the operation of the servo motors. Hereinafter, the feeder 20 is referred to as a first sprocket 31, a second sprocket 32, a third sprocket 33, and a fourth sprocket 34 in order from the front side.

The tape delivery unit 40 is arranged above the rail 22 on which the third sprocket 33 and the fourth sprocket 34 are positioned in the transport direction of the carrier tape 80 . The tape feeding unit 40 presses the carrier tape 80 interposed between the rail 22 and the third sprocket 33 and the fourth sprocket 34 side. Thereby, the tape delivery unit 40 assists the third sprocket 33 and the fourth sprocket 34 to engage with the sprocket holes 81 b of the carrier tape 80 .

As described above, the tape delivery unit 40 is a unit that delivers the carrier tape 80 along the rail 22 to the take-out part Nt side on the rear side of the feeder 20 . Further, the tape delivery unit 40 has a function of holding the replenishment tape T2 that has been reserved and inserted into the carrier tape T1 that is in use. The detailed configuration and operation of the tape delivery unit 40 will be described later.

The tape peeling unit 50 is arranged above the rail 22 on which the first sprocket 31 and the second sprocket 32 are positioned in the transport direction of the carrier tape 80 . The tape peeling unit 50 peels off the cover tape 82 of the carrier tape 80 that is fed and moved from the base tape 81 to expose the components to the outside at the take-out portion Nt. Also, the tape peeling unit 50 guides the cover tape 82 peeled from the base tape 81 to the exhaust duct.

(Detailed Configuration of Tape Sending Unit 40)
A detailed configuration of the tape delivery unit 40 of the feeder 20 will be described with reference to FIGS. 4 and 5. FIG. 4 shows a state in which the tape delivery unit 40 holds the carrier tape 80 (the transport tape T1 and the supply tape T2). FIG. 5 shows an initial state in which the carrier tape 80 is not inserted into the tape delivery unit 40. As shown in FIG. The tape delivery unit 40 includes a pressing member 41, an auxiliary member 42, an engaging member 43, a stopper member 44, and a release lever 45 (corresponding to the "release member" of the present invention).

The pressing member 41 is a member that presses the carrier tape 80 toward the third sprocket 33 and the fourth sprocket 34 side. The pressing member 41 is formed in a block shape. The pressing member 41 is provided to be movable relative to the case 21 in the vertical direction perpendicular to the conveying direction via the first shaft 61 . A first coil spring 65 is arranged coaxially with the first shaft 61 on the outer peripheral side of the first shaft 61 . The pressing member 41 is urged downward by the elastic force of the first coil spring 65 .

The first shaft 61 has a flange 61a at its upper end. A lower end portion of the first shaft 61 is fixed to the pressing member 41 . A shaft portion of the first shaft 61 passes through a shaft hole formed in the case 21 . With such a configuration, the pressing member 41 is restrained from moving downward by engaging the flange 61a of the first shaft 61 with the case 21 . Further, the pressing member 41 presses the carrier tape 80 toward the third sprocket 33 and the fourth sprocket 34 at a position moved upward from the initial position Pv1 (hereinafter also referred to as "pressing position Pv2") (see FIG. 9).

Here, a portion of the lower surface of the pressing member 41 that comes into contact with the carrier tape 80 when the pressing member 41 presses the carrier tape 80 is defined as a "contact portion 41a" (a portion indicated by hatching in FIG. 4). . In an initial state in which the carrier tape 80 is not pressed against the third sprocket 33 and the fourth sprocket 34, the pressing member 41 is positioned to contact the upper surface of the rail 22 or is separated from the upper surface of the rail 22 by a predetermined distance. in position. The "initial position Pv1" described above corresponds to the vertical position of the pressing member 41 in the initial state (the state in which the flange 61a of the first shaft 61 is engaged with the case 21).

The auxiliary member 42 is a member that presses the carrier tape 80 toward the third sprocket 33 and the fourth sprocket 34 on the insertion portion Ni side of the contact portion 41 a of the pressing member 41 with the carrier tape 80 . The auxiliary member 42 is formed in a block shape. The auxiliary member 42 is provided so as to be vertically movable relative to the pressing member 41 via the second shaft 62 . A second coil spring 66 is arranged coaxially with the second shaft 62 on the outer peripheral side of the second shaft 62 . The auxiliary member 42 is biased downward by the elastic force of the second coil spring 66 .

The second shaft 62 has a flange 62a at its upper end. A lower end portion of the second shaft 62 is fixed to the auxiliary member 42 . A shaft portion of the second shaft 62 passes through a shaft hole formed in the pressing member 41 . With such a configuration, the auxiliary member 42 is restrained from moving downward as the flange 62a of the second shaft 62 is engaged with the pressing member 41 . That is, the auxiliary member 42 is set to the terminal position of downward movement with respect to the pressing member 41 .

A vertically extending recessed sliding groove 42a is formed on one side end face of the auxiliary member 42 in the width direction of the rail 22 (the front-rear direction in FIG. 5). The sliding groove 42a has parallel groove side surfaces on both sides and extends in a direction perpendicular to the conveying direction. A third coil spring 67 is accommodated in the groove bottom of the slide groove 42a so as to be vertically expandable.

The engaging member 43 is a member that can be engaged with the feed hole 81b of the carrier tape 80 on the insertion portion Ni side of the contact portion 41a of the pressing member 41 with the carrier tape 80 . In the present embodiment, the engaging member 43 is in the range in the conveying direction where the auxiliary member 42 contacts the carrier tape 80 (the range until the feed hole of the carrier tape shown in FIG. 9 engages the fourth sprocket 34). It is provided on the auxiliary member 42 so as to be able to engage with the sprocket holes 81b of the carrier tape 80 in the contact range Rc).

More specifically, in this embodiment, the engaging member 43 is formed in a plate shape with a thickness slightly smaller than the diameter of the feed hole 81b. The engaging member 43 is arranged in the sliding groove 42 a of the auxiliary member 42 and is provided so as to be vertically slidable with respect to the auxiliary member 42 . The engaging member 43 is urged downward by the elastic force of the third coil spring 67 housed in the groove bottom of the auxiliary member 42 .

A first flange portion 43a is formed on the upper end portion of the engaging member 43 so as to protrude on both sides in the transport direction. The first brim portion 43a is provided on one end surface of the pressing member 41 in the width direction of the rail 22 as shown in FIG. It is latched by the cylindrical protrusion 41b.

Thereby, the engaging member 43 is set to the end position of downward movement with respect to the pressing member 41 by the positional relationship between the first flange portion 43a and the projection portion 41b. In this embodiment, the terminal position of the downward movement of the engaging member 43 with respect to the pressing member 41 is such that the lower end of the engaging member 43 (the tip of a saw-toothed projection 43c described later) is vertically aligned with the contact portion 41a of the pressing member 41. or above the contact portion 41a.

A second brim portion 43b protruding to both sides in the transport direction is formed in the middle portion of the engaging member 43 in the vertical direction. As shown in FIG. 5, the lower end of the second flange portion 43b is separated from the upper surface of the auxiliary member 42 by a specified amount L1 when the auxiliary member 42 is at the terminal position of the downward movement with respect to the pressing member 41. are placed.

As a result, the second flange portion 43b comes into contact with the upper surface of the auxiliary member 42 when the auxiliary member 42 moves upward relative to the pressing member 41 by the specified amount L1. The engaging member 43 moves upward together with the auxiliary member 42 as the auxiliary member 42 moves upward when the second flange portion 43b and the upper surface of the auxiliary member 42 are in contact with each other.

A plurality of saw-toothed protrusions 43 c that engage with the feed holes 81 b of the carrier tape 80 are formed at the lower end of the engaging member 43 . The plurality of saw-toothed projections 43c are arranged at the same intervals as the intervals between the sprocket holes 81b of the carrier tape 80. As shown in FIG. In addition, when the engagement member 43 is at the terminal position of the downward movement with respect to the pressing member 41, the tips of the plurality of sawtooth-shaped projections 43c are lower than the lower surface of the auxiliary member 42 by a certain amount Tr (not shown). It is positioned above or at the same height as the lower surface (fixed amount Tr=0).

The tips of the plurality of saw-toothed protrusions 43 c protrude downward from the lower surface of the auxiliary member 42 when the second collar portion 43 b is in contact with the upper surface of the auxiliary member 42 . At this time, the protrusion amount of the tip portion of the saw-toothed protrusion 43 c is set to be smaller than the thickness of the carrier tape 80 . The amount of protrusion is the distance between the lower end of the second collar portion 43b and the upper surface of the auxiliary member 42 (specified amount L1), and the tip of the sawtooth-shaped protrusion 43c of the engaging member 43 at the terminal position of downward movement. It corresponds to the difference (L1-Tr) from the distance from the lower surface of the auxiliary member 42 (the above constant amount Tr).

With such a configuration, the engaging member 43 has the end portion of the carrier tape 80 positioned closer to the insertion portion Ni than the contact portion 41 a of the pressing member 41 with the carrier tape 80 , and the carrier tape 80 is positioned closer to the engaging member 43 and the rail 22, it engages with the sprocket hole 81b of the carrier tape 80 by an amount corresponding to the above specified amount L1.

Specifically, when the tip of the serrated projection 43c of the engaging member 43 at the terminal position of downward movement is at the same height as the lower surface of the auxiliary member 42 (fixed amount Tr=0), the engagement The member 43 engages with the sprocket hole 81b of the carrier tape 80 by a specified amount L1. Thereby, the engaging member 43 restricts the movement of the carrier tape 80 toward the insertion portion Ni.

Further, in this embodiment, the saw-toothed protrusions 43c gradually move along the transport path from the end on the side of the insertion portion Ni that contacts the carrier tape 80 that is fed and moved in a state of being engaged with the feed holes 81b of the carrier tape 80. 43 d of inclined surfaces which incline in the direction which narrows are formed.

According to such a configuration, when the carrier tape 80 is fed to the take-out portion Nt side and receives a load in the transport direction at the contact point with the carrier tape 80, part of the load acts as an upward load. is converted to As a result, the engaging member 43 moves upward against the elastic force of the third coil spring 67 . That is, the engaging member 43 regulates the movement of the carrier tape 80 toward the insertion portion Ni side in a state in which the saw-toothed protrusions 43c are engaged with the feed holes 81b of the carrier tape 80, The configuration is such that the movement to the Nt side is not restricted.

The stopper member 44 is a member for determining the position of the end portion of the supply tape T2 inserted above the transport tape T1. The stopper member 44 is formed in a block shape. A rotating shaft 44a is formed at an intermediate portion of the stopper member 44 in the longitudinal direction (transporting direction of the carrier tape 80, which is the horizontal direction in FIG. 5). The stopper member 44 is supported by the pressing member 41 so as to be rotatable about the axis of the rotary shaft 44a.

A convex portion 44b is formed on the lower portion of the stopper member 44 on the take-out portion Nt side so as to come into contact with the upper surface of the transport tape T1 interposed between the rail 22 and the transport tape T1. A fourth spring 68 is arranged between the pressing member 41 and the upper portion of the stopper member 44 on the take-out portion Nt side. The stopper member 44 is urged in the rotational direction by the elastic force of the fourth spring 68 to bring the convex portion 44 b closer to the rail 22 .

The stopper member 44 rotates against the elastic force of the fourth spring 68 when the carrier tape T1 is fed between the convex portion 44b and the rail 22. As shown in FIG. As a result, the end portion of the stopper member 44 on the insertion portion Ni side approaches the upper surface of the transport tape T1. At this time, the distance between the end portion of the stopper member 44 on the insertion portion Ni side and the upper surface of the transport tape T1 is smaller than the thickness of the supply tape T2.

As a result, the stopper member 44 comes into contact with the end portion of the supply tape T2 at the end portion on the side of the insertion portion Ni, thereby restricting the movement of the supply tape T2. At this time, the end of the supply tape T2 contacts the stopper member 44 to be positioned at the specified position Ph1 in the transport direction. 4, the specified position Ph1 is positioned closer to the pickup portion Nt than the center of rotation of the fourth sprocket 34 in the transport direction of the carrier tape 80. As shown in FIG.

The release lever 45 is a release member that receives an operation force and forcibly moves the engagement member upward to release the engagement between the engagement member 43 and the feed hole 81 b of the carrier tape 80 . The release lever 45 is rotatably supported by the case 21 . The release lever 45 is urged in a rotational direction to move upward the end on the side of the insertion portion Ni by the elastic force of a torsion spring (not shown).

The release lever 45 has a leg portion 45a extending in the opposite direction across the rotation shaft from the operation portion that receives the operation force. The leg portion 45a is connected to the auxiliary member 42 via a shaft member. Therefore, the release lever 45 is indirectly connected to the engaging member 43 via the auxiliary member 42 in this embodiment. With such a configuration, when a downward operating force is applied to the release lever 45, the release lever 45 rotates around the axis of the rotation shaft. As a result, the leg portion 45a and the auxiliary member 42 connected to the leg portion 45a move upward.

Then, the lower end portion of the second brim portion 43b of the engaging member 43 comes into contact with the upper surface of the auxiliary member 42, and the engaging member 43 moves upward together with the auxiliary member 42. As shown in FIG. As a result, the release lever 45 releases the saw-toothed projections 43 c of the engaging member 43 from the feed holes 81 b of the carrier tape 80 . In this way, when an operating force is applied to the release lever 45 , the carrier tape 80 is allowed to move along the transport path regardless of the states of the pressing member 41 , the engaging member 43 and the carrier tape 80 .

(Operation of tape delivery unit 40)
The operation of the tape delivery unit 40 will be described with reference to FIGS. 5 to 11. FIG. Here, as described above, the pressing member 41, the auxiliary member 42, and the engaging member 43 are configured to be relatively movable in the vertical direction, and partially interlocked with each other. Specifically, the auxiliary member 42 is set to the terminal position of downward movement with respect to the pressing member 41 . That is, when the flange 62 a of the second shaft 62 is in contact with the upper surface of the pressing member 41 , the auxiliary member 42 moves upward in conjunction with the upward movement of the pressing member 41 .

In addition, the engagement member 43 is set to the terminal position of downward movement with respect to the pressing member 41 and the auxiliary member 42 . That is, in a state where the first flange portion 43a is engaged with the projection portion 41b of the pressing member 41, the engaging member 43 moves upward in conjunction with the upward movement of the pressing member 41. As shown in FIG. Furthermore, when the second flange portion 43b is in contact with the upper surface of the auxiliary member 42, the engaging member 43 moves upward in conjunction with the upward movement of the auxiliary member 42. As shown in FIG. Thus, in this embodiment, the feeder 20 has an interlocking mechanism Mn configured by members including the projection 41b and the first flange 43a.

In the initial state where the carrier tape 80 is not inserted into the feeder 20, each member of the tape delivery unit 40 has a positional relationship as shown in FIG. Specifically, the pressing member 41 and the auxiliary member 42 are positioned to contact the upper surface of the rail 22 or are positioned with a slight gap therebetween. Also, the engaging member 43 is at a position where the first flange portion 43a engages with the projection portion 41b of the pressing member 41 . As a result, the tips of the plurality of saw-toothed protrusions 43 c of the engaging member 43 are located above the lower surface of the auxiliary member 42 .

Next, when the first carrier tape 80 (transport tape T1) is inserted from the insertion portion Ni, the end of the transport tape T1 comes into contact with the lead-in surface formed at the end of the auxiliary member 42 on the insertion portion Ni side. do. When the transport tape T1 is pushed further, the auxiliary member 42 moves upward with respect to the pressing member 41 . When the auxiliary member 42 moves upward by the specified amount L1, the upper surface of the auxiliary member 42 comes into contact with the second collar portion 43b of the engaging member 43. As shown in FIG. The above specified amount L1 corresponds to the distance between the lower end portion of the second collar portion 43b of the engaging member 43 and the upper surface of the auxiliary member 42 in the initial state of the feeder 20 .

Then, as shown in FIG. 6, the second jaw 43b of the tape delivery unit 40 engages in conjunction with the upward movement of the auxiliary member 42 after the relative movement of the auxiliary member 42 relative to the pressing member 41 by a specified amount L1. The member 43 is moved upward. At this time, the tips of the plurality of saw-toothed protrusions 43c of the engaging member 43 protrude downward from the lower surface of the auxiliary member 42 by an amount corresponding to the specified amount L1.

The protrusion amount of the tip portion of the sawtooth-shaped protrusion 43c is set to be smaller than the thickness of the carrier tape T1, and in this embodiment, it is approximately 1/4 of the thickness of the carrier tape T1. When the carrier tape T1 is further pushed, the auxiliary member 42 moves upward to a position where the lower surface of the auxiliary member 42 is separated from the upper surface of the rail 22 by the thickness of the carrier tape T1. As a result, the carrier tape T<b>1 is pressed against the third sprocket 33 and the fourth sprocket 34 by the auxiliary member 42 .

When the carrier tape T1 is pushed further, the end of the carrier tape T1 comes into contact with the saw-toothed projections 43c of the engaging member 43. As shown in FIG. When the transport tape T1 is further moved in the transport direction, the engaging member 43 receives the load from the transport tape T1 on the inclined surface 43d and moves upward against the elastic force of the third coil spring 67. As shown in FIG. The sawtooth-like protrusions 43c of the engaging members 43 are engaged with the sprocket holes 81b of the transport tape T1 from above.

When the carrier tape T1 is pushed from this state, the engaging member 43 repeats vertical movement due to the load from the feed hole 81b and the elastic force of the third coil spring 67, as shown in FIG. Subsequently, when the end of the carrier tape T1 moves to the specified position Ph1, the fourth sprocket 34 is engaged with the feed hole 81b of the carrier tape T1 from below as shown in FIG. As a result, the transport tape T<b>1 can be fed and moved in the transport direction by the rotation of the fourth sprocket 34 .

When the fourth sprocket 34 is rotationally driven, the carrier tape T<b>1 is fed and fed between the pressing member 41 and the rail 22 . Then, the pressing member 41 moves upward with respect to the rail 22 . When the pressing member 41 moves upward by a predetermined amount, the protrusion 41 b of the pressing member 41 contacts the first flange 43 a of the engaging member 43 . The above-mentioned “predetermined amount” corresponds to the protrusion amount of the sawtooth-shaped protrusion 43c protruding downward from the lower surface of the auxiliary member 42 in this embodiment.

When the pressing member 41 is further moved upward by the transport tape T1, the engaging member 43 moves upward in conjunction with the upward movement of the pressing member 41, as shown in FIG. As a result, the saw-toothed projections 43c of the engaging member 43 are separated from the feed holes 81b of the transport tape T1. Further, the pressing member 41 moves upward from the initial position Pv1 to press the conveying tape T1 at the pressing position Pv2 (the position where the lower surface of the pressing member 41 is separated from the upper surface of the rail 22 by the thickness of the conveying tape T1). It is pressed against the fourth sprocket 34 side.

As described above, the interlocking mechanism Mn of the tape delivery unit 40 is configured to move the tape above the pressing member 41 when the pressing member 41 presses the transport tape T1 toward the third sprocket 33 and the fourth sprocket 34 as shown in FIG. Interlocking with the movement, the engaging member 43 is moved upward. As a result, the interlocking mechanism Mn disengages the saw-toothed protrusions 43c of the engaging member 43 from the feed holes 81b of the transport tape T1, thereby allowing the transport tape T1 to move in the transport direction.

The transport tape T1 is fed out along the rail 22 toward the pick-up portion Nt side by rotational driving of the third sprocket 33 and the fourth sprocket 34 positioned below the tape feeding unit 40 . When the carrier tape T1 is fed to the front side of the feeder 20, the feed holes 81b of the carrier tape T1 are engaged with the first sprocket 31 and the second sprocket 32. As shown in FIG. The feeder 20 controls the rotational driving of each of the sprockets 31 to 34 and supplies the parts so that they can be taken out from the take-out portion Nt.

Here, when the carrier tape T1 is fed and moved between the pressing member 41 and the rail 22, the carrier tape T1 comes into contact with the projections 44b of the stopper member 44, as shown in FIG. Thereby, the stopper member 44 rotates against the elastic force of the fourth spring 68 . Then, the end portion of the stopper member 44 on the side of the insertion portion Ni comes close to the upper surface of the transport tape T1. At this time, the distance between the end portion of the stopper member 44 on the insertion portion Ni side and the upper surface of the transport tape T1 is smaller than the thickness of the supply tape T2.

Subsequently, when the second carrier tape 80 (replenishment tape T2) is inserted from the insertion portion Ni, the pressing member 41, the auxiliary member 42 and the engaging member 43 operate in the same manner as when the carrier tape T1 is inserted. As a result, the positional relationship shown in FIG. 10 is obtained. When the end of the supply tape T2 contacts the stopper member 44, the supply tape T2 is positioned at the specified position Ph1 in the transport direction. The supply tape T2 is restrained from moving toward the take-out portion Nt by the stopper member 44, and waits for feeding movement while overlapping the transport tape T1.

As described above, the end portion of the supply tape T2 is located closer to the insertion portion Ni than the contact portion 41a of the pressing member 41 with the transport tape T1, and the supply tape T2 is located between the engaging member 43 and the transport tape T1. , and when the feed hole of the supply tape T2 is not engaged with the fourth sprocket 34, the engaging member 43 engages with the feed hole 81b of the supply tape T2 to insert the insertion portion Ni of the supply tape T2. Regulate movement to the side. In other words, when the auxiliary member 42 is positioned above the pressing member 41 by the thickness of the carrier tape 80, the engaging member 43 engages with the sprocket hole 81b of the carrier tape 80 to allow the carrier tape 80 to be inserted. It regulates the movement to the part Ni side.

After that, when the trailing edge of the transport tape T1 passes through the specified position Ph1 of the tape delivery unit 40, the supplementary tape T2 is pressed against the upper surface of the rail 22 by the auxiliary member . At this time, the auxiliary member 42 moves downward to a position where the lower surface of the auxiliary member 42 is separated from the upper surface of the rail 22 by the thickness of the supply tape T2. At this time, while the engaging member 43 is moving downward together with the auxiliary member 42 , the first flange portion 43 a engages with the projection portion 41 b of the pressing member 41 .

As a result, the respective members of the tape delivery unit 40 have the positional relationship shown in FIG. Specifically, the tips of the plurality of saw-toothed projections 43 c of the engaging member 43 are located above the lower surface of the auxiliary member 42 . In other words, the saw-toothed protrusions 43c of the engaging member 43 are separated from the feeding holes 81b of the supply tape T2 as they move downward. As a result, the supply tape T2 is allowed to move in the transport direction.

Further, when the supply tape T2 is moved downward to the position where it contacts the upper surface of the rail 22, the feeding holes 81b of the supply tape T2 are ready to engage with the fourth sprocket . Further, the end portion of the supply tape T2 is positioned below the end portion of the stopper member 44 on the side of the insertion portion Ni, and the restriction on movement toward the removal portion Nt side is released. As a result, the feeding tape T2 starts to move so as to follow the trailing edge of the transport tape T1 by the rotational drive of the fourth sprocket 34 .

Here, it is assumed that an operating force is applied to the release lever 45 while the engaging member 43 is engaged with the feed hole 81b of the carrier tape 80 (see FIG. 10). The release lever 45 rotates around the axis of the rotation shaft against the elastic force of the torsion spring by the operating force. As a result, the release lever 45 moves upward the auxiliary member 42 connected to the leg portion 45a, as shown in FIG.

Then, the engaging member 43 with the second collar portion 43 b in contact with the upper surface of the auxiliary member 42 moves upward together with the auxiliary member 42 . As a result, the saw-toothed protrusions 43c of the engaging member 43 are separated from the feed holes 81b of the supply tape T2. The replenishment tape T2 is released from the restriction of movement toward the insertion portion Ni by the engaging member 43 . Therefore, the operator can pull out the supply tape T2 toward the insertion portion Ni while applying an operation force to the release lever 45 .

<Modification of Embodiment>
In the embodiment, the interlocking mechanism Mn is configured by the protrusion 41b of the pressing member 41 and the first flange 43a of the engaging member 43 . On the other hand, as long as the interlocking mechanism Mn is configured to move the engaging member 43 upward in conjunction with the upward movement of the pressing member 41, it is possible to adopt another mode. Further, the interlocking mechanism Mn may have a connecting member interposed between the pressing member 41 and the engaging member 43, and the engaging member 43 may be interlocked by the connecting member.

The feeder 20 also includes an auxiliary member 42 that presses the supply tape T2 against the third sprocket 33 and the fourth sprocket 34 side. On the other hand, even if the feeder 20 does not have the auxiliary member 42 , the engaging member 43 interlocking with the upward movement of the pressing member 41 may be used to prevent the carrier tape 80 from coming off.

Also, the auxiliary member 42 may be provided in a feeder other than the non-splicing feeder. In such a mode, the auxiliary member 42 is provided, for example, to prevent the carrier tape 80 inserted into the feeder 20 from being removed during changeover. As a result, the feeder 20 reliably holds the carrier tape 80 until the carrier tape 80 is fed after the power is turned on. In such a mode, as in the present embodiment, the carrier tape 80 appropriately selected from the reel holding section 4 according to the board product to be produced is placed on the feeder 20 set in the slot 3a of the component supply device 3. It is particularly useful in the case of the component mounter 1 that inserts and changes the setup.

In the embodiment, the feeder 20 also includes a release lever 45 rotatably supported by the case 21 as a release member for forcibly moving the engaging member 43 upward. The release lever 45 is indirectly connected to the engagement member 43 via the auxiliary member 42 . In this configuration, while releasing the pressure applied to the carrier tape 80 by the auxiliary member 42 , the locking of the carrier tape 80 by the engaging member 43 is released in conjunction with the upward movement of the auxiliary member 42 .

On the other hand, the release lever 45 can employ a configuration in which it is directly connected to the engaging member 43 . For example, the leg portion 45a of the release lever 45 and the engaging member 43 are connected by a connecting member. Thereby, the operation of the release lever 45 is directly transmitted to the engaging member 43 . Therefore, when an operation force is applied to the release lever 45, the engaging member 43 can be immediately moved upward.

In the embodiment, the feeder 20 is configured so that the pressing member 41 presses the carrier tape 80 against the third sprocket 33 and the fourth sprocket 34, which are the sprockets on the insertion section side, from above. On the other hand, the engaging member 43 may be provided in the feeder in which the pressing member presses the carrier tape against the sprocket on the insertion portion side from below to prevent the carrier tape from coming off.

1: Component mounter 2: Board transfer device 3: Component supply device 3a: Slot 4: Reel holding unit 5: Component transfer device 6: Control device 11: Head drive device 12: Mounting head 20: Feeder 21: case, 22: rail, 22a: window 31: first sprocket, 32: second sprocket 33: third sprocket, 34: fourth sprocket 40: tape delivery unit 41: pressing member, 41a: contact portion, 41b : Projection 42: Auxiliary member 42a: Sliding groove 43: Engagement member 43a: First flange 43b: Second flange 43c: Claw 43d: Inclined surface 44: Stopper member 44a: Rotation shaft 44b : convex portion 45: release lever (release member) 50: tape peeling unit 61: first shaft 61a: flange 62: second shaft 62a: flange 65: first coil spring 66: second coil spring 67: second Three coil springs, 68: Fourth spring 71: First reel, 72: Second reel 80: Carrier tape 81: Base tape, 81a: Component storage part, 81b: Feed hole 82: Cover tape Bd: Substrate, Nt: Take-out part, Ni: insertion part, Mn: interlocking mechanism T1: transport tape (first carrier tape) T2: supply tape (second carrier tape) Pv1: initial position, Pv2: pressing position, Ph1: specified position Rc: ( Auxiliary member and tape) contact range, L1: specified amount

Claims (1)

The carrier tape inserted from the insertion portion is fed along the transport path by rotational driving of the sprocket that engages the feed holes formed at regular intervals in the transport direction of the carrier tape containing the electronic components at regular intervals. A feeder that moves and supplies the electronic component so that it can be taken out at a take-out part,
a pressing member that presses the carrier tape against the sprocket;
an engaging member that can be engaged with the feed hole of the carrier tape on the insertion portion side of the sprocket,
The engaging member is urged from above the carrier tape and engages with the feed hole to restrict movement of the carrier tape toward the insertion section while allowing movement toward the removal section. death,
further comprising a releasing member that is directly or indirectly connected to the engaging member and receives an operating force to forcibly move the engaging member;
the releasing member disengages the engaging member from the feed hole of the carrier tape to allow the carrier tape to move along the transport path when the operating force is applied ;
while the pressing member presses the first carrier tape against the sprocket, presses the second carrier tape superimposed on the first carrier tape and inserted from the insertion portion against the sprocket;
The engaging member engages only the feed hole of the second carrier tape in a state in which the first carrier tape and the second carrier tape are interposed between the sprocket and the pressing member. A feeder that engages a member to restrict movement of the second carrier tape toward the insertion section while permitting movement toward the removal section.

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