CN109963453B - Reel holding device and reel pressing member - Google Patents

Abstract

The invention provides a reel holding device and a reel pressing member. A reel holding device (trolley (5)) holds a reel (8) wound with a carrier tape (7), wherein the carrier tape (7) is used for accommodating components supplied to a component assembly device, and the reel holding device (trolley (5)) comprises: a reel holding section (9) that rotatably supports the reel (8); and a tape guide section (60b) which is connected to the reel holding section (9) and can be brought into contact with the outer periphery of the reel (8), wherein the tape guide section (60b) is brought into contact with the back surface of the carrier tape (7).

Description

Reel holding device and reel pressing member

Technical Field

The present disclosure relates to a reel holding device and a reel pressing member that hold a reel of a carrier tape on which a housing member is wound.

Background

In a tape feeder (component feeding device) that feeds components housed in a carrier tape to a component mounting device, the carrier tape wound around a reel is fed (for example, japanese patent application laid-open No. 2013-235900). The component supply device described in japanese patent application laid-open No. 2013-235900 draws a carrier tape from a reel held by a reel holder (reel holding portion) to supply a component. However, the reel held by the reel holder sometimes drops off from the reel holder due to the tension of the component supplying device that draws out the carrier tape.

The spool holder described in japanese patent application laid-open No. 2013-235900 includes a door mechanism that is capable of opening and closing in a gap portion through which the spool moves in and out, in an open state in which the spool can be passed and in a closed state in which the drop-off of the spool is restricted. The door mechanism includes a movable door member biased by a spring or the like, and when an operator inserts (removes) the spool into/from the spool holder, the movable door member is pushed up to open the gap portion, and the spool is inserted (removed). In addition, since the door mechanism is in the closed state in a state where the movable door member is not pushed up, the inserted reel can be prevented from falling off the reel holder.

However, the spool holder disclosed in japanese patent application laid-open No. 2013-235900 uses a spring or other component, and therefore, there is a problem that the structure of the door mechanism is complicated and the cost is difficult to reduce.

Disclosure of Invention

Accordingly, an object of the present disclosure is to provide a reel holding device and a reel pressing member that can prevent the reel from falling off at low cost.

The reel holding device of the present disclosure holds a reel on which a carrier tape for receiving a component supplied to a component mounting device is wound, wherein the reel holding device includes: a reel holding portion that rotatably supports the reel; and a tape guide portion connected to the reel holding portion and capable of abutting against an outer periphery of the reel, the tape guide portion abutting against a back surface of the carrier tape.

The reel pressing member of the present disclosure is detachably attached to a reel holding device that holds a reel on which a carrier tape for housing a component is wound, and includes: a connection portion detachably connected to a reel holding portion of the reel holding device that rotatably supports the reel; a tape guide portion which can abut against an outer periphery of the reel and which abuts against a back surface of the carrier tape; and a coupling portion that couples the connection portion and the tape guide portion.

According to the present disclosure, the falling-off of the reel can be prevented at low cost.

Drawings

Fig. 1 is a structural explanatory view of a component mounting apparatus according to an embodiment of the present disclosure.

Fig. 2 is a diagram illustrating a configuration of a component supply device according to an embodiment of the present disclosure.

Fig. 3 is a block diagram showing a configuration of a control system of a component supply device according to an embodiment of the present disclosure.

Fig. 4 is a structural explanatory view of a subsequent tape holding portion in the component feeding device according to the embodiment of the present disclosure.

Fig. 5 is a structural explanatory view of a succeeding tape holding portion in the component supplying apparatus according to the embodiment of the present disclosure.

Fig. 6 is a functional explanatory view of a subsequent tape holding portion in the component supplying apparatus according to the embodiment of the present disclosure.

Fig. 7 is a structural explanatory view of a succeeding tape holding portion in the component supplying apparatus according to the embodiment of the present disclosure.

Fig. 8 is a structural explanatory view of a succeeding tape holding portion in the component supplying apparatus according to the embodiment of the present disclosure.

Fig. 9 (a), (b), (c), and (d) are functional explanatory views of the subsequent tape holding portion in the component supply device according to the embodiment of the present disclosure.

Fig. 10 is an explanatory view of the configuration of a curl correction unit in the component supply device according to the embodiment of the present disclosure.

Fig. 11 is a functional explanatory diagram of a curl correction unit in the component supply device according to the embodiment of the present disclosure.

Fig. 12 is a functional explanatory diagram of a curl correction unit in the component supply device according to the embodiment of the present disclosure.

Fig. 13 is an explanatory view of the structure of the reel holding portion in the reel holding device according to the embodiment of the present disclosure.

Fig. 14 is an explanatory view of the structure of a spool pressing member attached to a spool holding portion in the spool holding device according to the embodiment of the present disclosure.

Fig. 15 is an explanatory view of the structure of another reel holding portion in the reel holding device according to the embodiment of the present disclosure.

Detailed Description

Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings. The configurations, shapes, and the like described below are illustrative examples, and can be appropriately changed according to the specifications of the component mounting apparatus, the tape feeder, the carriage, and the like. In the following, corresponding elements in all the drawings are denoted by the same reference numerals, and redundant description thereof is omitted. In fig. 1, an X direction (a direction perpendicular to the paper surface in fig. 1) in the substrate transfer direction and a Y direction (a left-right direction in fig. 1) orthogonal to the substrate transfer direction are shown as two axial directions orthogonal to each other in a horizontal plane. In addition, the Z direction (vertical direction in fig. 1) is shown as a height direction perpendicular to the horizontal plane.

First, the structure of the component mounting apparatus 1 will be described with reference to fig. 1. The component mounter 1 has a function of manufacturing a mounting substrate on which a component is mounted on a substrate. The substrate transfer mechanism 2 provided on the upper surface of the base 1a transfers the substrate 3 in the X direction and positions and holds the substrate. Above the substrate transfer mechanism 2, a mounting head 4 is provided which is moved in the horizontal direction (X direction, Y direction) by a head moving mechanism (not shown). A plurality of tape feeders 6 are mounted side by side in the X direction on the upper portion of the carriage 5 that is located on the side of the substrate conveyance mechanism 2 and is coupled to the base 1 a.

A reel holder 9 for rotatably supporting a reel 8 on which a carrier tape 7 is wound is provided on the front side of the carriage 5 and below the tape feeder 6, and the carrier tape 7 stores components to be supplied to the component mounter 1. The tape feeder 6 conveys the carrier tape 7 stored in the reel 8 in the tape conveying direction, and supplies components to the component pickup position of the mounting head 4.

The component mounting apparatus 1 includes a mounting control unit 10 that controls the substrate transfer mechanism 2, the mounting head 4, and the head movement mechanism. The assembly control unit 10 sends a component supply command to the tape feeder 6, controls the assembly head 4 and the head moving mechanism, takes out the component supplied from the tape feeder 6 to the component take-out position by the assembly head 4, and performs component assembly work for transferring the component to the assembly point of the substrate 3 held by the substrate transport mechanism 2. In this way, the tape feeder 6 is a component feeder that feeds the components accommodated in the carrier tape 7 to the component mounter 1. A main body cover 11 that can be opened and closed is provided above the carriage 5, and the main body cover 11 covers the movable mechanism such as the mounting head 4 during the component mounting operation so as not to be touched by the operator.

In fig. 1, a recovery box 12 is provided at a lower portion of the carriage 5, and the recovery box 12 recovers an empty carrier tape 7 discharged from the rear of the tape feeder 6 after the component is taken out by the mounting head 4. A discharge chute 13 for guiding the empty carrier tape 7 discharged from the tape feeder 6 to the recovery box 12 is provided on the rear side of the carriage 5. The discharge chute 13 is provided with a cutting unit 14 for cutting the empty carrier tape 7 by a predetermined length. The empty carrier tape 7 discharged from the tape feeder 6 is cut by the cutting unit 14 and then collected in the collection box 12.

Next, the structure and function of the tape feeder 6 will be described with reference to fig. 2. Inside the tape feeder 6, a tape running path 20 is provided for guiding the carrier tape 7 drawn out from the reel 8 and taken into the tape feeder 6. The tape running path 20 is provided so as to communicate from an insertion port 20a opened on the upstream side (left side in fig. 2) in the tape conveying direction in the tape feeder 6 to an ejection port 20b opened on the downstream side (right side in fig. 2) in the tape conveying direction. A component pickup position P at which the component is picked up by the mounting head 4 is provided midway in the tape travel path 20.

In the process of continuously performing the component mounting work, a plurality of carrier tapes 7 in a batch by the storage amount of one reel 8 are sequentially inserted from the insertion port 20a and supplied to the tape feeder 6. Hereinafter, a carrier tape 7 that is fed first out of two carrier tapes 7 that are introduced from the insertion port 20a and are successively fed one after another is referred to as a leading tape 7p, and a carrier tape 7 that is fed after the leading tape 7p is referred to as a trailing tape 7s (see fig. 4). That is, the tape running path 20 has an insertion port 20a into which the preceding tape 7p and the succeeding tape 7s can be inserted.

In fig. 2, a first belt conveying mechanism 21 that conveys the preceding belt 7P to the component pickup position P is provided on the downstream side in the belt traveling path 20. The first belt conveying mechanism 21 includes a first sprocket 21a that engages with the preceding belt 7p, and a first motor 21b that drives the first sprocket 21a to rotate. A belt cover 22 is attached above the first belt conveying mechanism 21, and the belt cover 22 includes a peeling blade that presses the leading belt 7p from above and exposes the member accommodated in the leading belt 7 p. An opening is formed in the belt cover 22 at a position corresponding to the component removal position P. When the carrier tape 7 is advanced along the lower surface of the tape cover 22 by the sprocket 21a, the components are exposed by the peeling blade, and the exposed components are conveyed to the component pickup position P, which is an opening formed downstream of the tape cover 22.

In fig. 2, a second belt conveying mechanism 23 that feeds the subsequent belt 7s inserted from the insertion port 20a to the first belt conveying mechanism 21 is provided on the upstream side in the belt traveling path 20. The second belt conveying mechanism 23 includes a second sprocket 23a engaged with the subsequent belt 7s, and a second motor 23b for driving the second sprocket 23a to rotate. The second sprocket 23a incorporates an encoder 23c as a rotation detection means. A belt pressing mechanism 24 and a belt stopper mechanism 25 are provided below the second belt conveying mechanism 23.

The subsequent belt 7s inserted from the insertion port 20a is pressed against the second sprocket 23a by the belt pressing mechanism 24 and engaged with the second sprocket 23a, and is brought into a belt conveyable state. The second sprocket 23a is engaged with the subsequent belt 7s and rotated, and the encoder 23c detects the engagement of the subsequent belt 7s with the second sprocket 23 a. The belt stopper mechanism 25 has the following functions: the leading tape 7p is led to the downstream side without stopping, and the leading end portion of the succeeding tape 7s overlapped and inserted on the leading tape 7p is temporarily stopped by the stopper member 25 a.

In fig. 2, a subsequent tape holding portion 26 is provided on the upstream side of the insertion port 20a, and the subsequent tape holding portion 26 holds an uninserted portion of the subsequent tape 7s inserted into the insertion port 20a in a state of being superimposed on the preceding tape 7p, the uninserted portion being not inserted into the insertion port 20a, to a position separated upward from an uninserted portion of the preceding tape 7 p. The detailed structure of the subsequent tape holding portion 26 will be described later. A curl correction unit 27 is provided downstream of the discharge port 20b, and the curl correction unit 27 corrects the curl of the empty tape 7e while guiding the empty carrier tape 7 (hereinafter referred to as "empty tape 7 e") discharged from the discharge port 20b after the component is taken out to the discharge chute 13 below. The detailed configuration of the curl correction unit 27 will be described later.

In fig. 2, a first sensor S1 for detecting the presence or absence of the carrier tape 7 is provided on the upstream side of the first tape conveying mechanism 21 in the tape traveling path 20. A second sensor S2 for detecting the presence or absence of the carrier tape 7 is similarly disposed downstream of the second tape conveying mechanism 23 and upstream of the first sensor S1. The tape stopper mechanism 25 includes a third sensor S3 that detects that the succeeding tape 7S is in contact with the stopper member 25 a.

The detection results of the first sensor S1, the second sensor S2, and the third sensor S3 are transmitted to the feeder control unit 28 provided in the tape feeder 6. The lower surface of the base portion 6a of the tape feeder 6 is fitted with an attachment 6 b. When the tape feeder 6 is mounted on the carriage 5 via the accessory 6b, the feeder control unit 28 is electrically connected to the mounting control unit 10 via the carriage 5.

In fig. 2, an operation display panel 29 (see also fig. 3) connected to the feeder control section 28 is provided on the upper surface on the upstream side of the tape feeder 6. The operation display panel 29 is provided with operation buttons for allowing an operator to perform a predetermined operation input and display means such as an LED for notifying the operator of a predetermined content. The operator can confirm the operating state of the tape feeder 6 and input an operation for a predetermined item on the operation display panel 29.

Next, the configuration of the control system of the tape feeder 6 will be described with reference to fig. 3. The feeder control unit 28 provided in the tape feeder 6 includes a communication unit 28 a. The communication unit 28a is a communication interface and transmits and receives signals and data to and from the mounting control unit 10 included in the component mounting apparatus 1. The feeder control unit 28 controls the first motor 21b and the second motor 23b based on the detection results of the encoder 23c, the first sensor S1, the second sensor S2, and the third sensor S3, and executes the tape conveying operation of the preceding tape 7p and the following tape 7S in a predetermined control mode.

Here, the tape conveying operation in the tape feeder 6 will be described with reference to fig. 2. First, the operator inserts the preceding tape 7p from the insertion port 20a in a state where the carrier tape 7 is not supplied to the tape feeder 6. When the inserted leading tape 7p reaches the second sprocket 23a, the leading tape 7p engages with the second sprocket 23 a.

When the encoder 23c detects that the leading belt 7p is engaged with the second sprocket 23a, the feeder control unit 28 drives the second motor 23b to rotate, and conveys the leading belt 7p to the first belt conveying mechanism 21. When the operator operates the operation display panel 29, the feeder control unit 28 may convey the preceding tape 7p to the first tape conveying mechanism 21. When the preceding tape 7p reaches the first tape conveying mechanism 21, the feeder control unit 28 sets the second motor 23b to an idle mode, and drives and rotates the first motor 21b to pitch-convey the preceding tape 7p at a predetermined pitch.

When the succeeding tape 7s is replenished with components supplied from the preceding tape 7p, the operator inserts the succeeding tape 7s from the insertion port 20a through the succeeding-tape holding portion 26. When the inserted subsequent belt 7s reaches the second sprocket 23a, the subsequent belt 7s engages with the second sprocket 23 a. When the encoder 23c detects that the subsequent belt 7s is engaged with the second sprocket 23a, the feeder control unit 28 drives the second motor 23b to rotate, and conveys the subsequent belt 7s to the downstream side. When the third sensor S3 detects that the leading end of the succeeding tape 7S conveyed to the downstream side has come into contact with the stopper member 25a, the feeder control portion 28 stops the driving of the second motor 23 b.

The component feeding from the preceding tape 7p is continued, and when the trailing end portion of the preceding tape 7p passes through the tape stopper mechanism 25, the tape stopper mechanism 25 releases the stopping of the subsequent tape 7s by the stopper member 25 a. Next, when the leading end portion of the preceding tape 7p reaches the second sensor S2, the feeder control unit 28 drives the second motor 23b to rotate, and conveys the succeeding tape 7S until the leading end portion of the succeeding tape 7S reaches the second sensor S2. Thereafter, the feeder control unit 28 conveys the subsequent tape 7S downstream in accordance with the pitch conveyance of the preceding tape 7p until the trailing end of the preceding tape 7p reaches the first sensor S1.

When the trailing end of the preceding tape 7p reaches the first sensor S1, the feeder control unit 28 drives the second motor 23b to rotate and conveys the succeeding tape 7S until the leading end of the succeeding tape 7S reaches the first sensor S1. When the supply of the component from the preceding tape 7p is completed and the preceding tape 7p passes through the first tape conveying mechanism 21, the feeder control portion 28 drives the second motor 23b to rotate, and conveys the succeeding tape 7s to the first tape conveying mechanism 21. Thereafter, the subsequent tape 7s becomes the preceding tape 7p and component supply is performed.

Next, the structure of the subsequent tape holding portion 26 will be described with reference to fig. 4 to 8. In fig. 6 to 8, the subsequent tape holding portion 26 includes: a first support portion 30 that supports one side portion in the width direction of the succeeding belt 7s from below; and a second support portion 31 that supports the other side portion of the succeeding belt 7s in the width direction from below. Hereinafter, for convenience, one of the following belts 7s in the width direction is referred to as a left side (left side in fig. 7), and the other of the following belts 7s in the width direction is referred to as a right side (right side in fig. 7).

In fig. 6 to 8, the first support portion 30 is formed on the right side surface of a plate-like member 32 that is widened in the belt conveying direction and the vertical direction (Z direction). The right side surface of the plate-like member 32 is a guide surface for guiding the left side surface of the succeeding belt 7 s. The plate-like member 32 is fixed to the base portion 6a of the tape feeder 6 (see fig. 5). The second support portion 31 is formed on the left side surface of a plate-like movable member 33 that widens in the belt conveying direction and the vertical direction. The left side surface of the movable member 33 is a guide surface for guiding the right side surface of the succeeding belt 7 s.

In fig. 5 and 6, the downstream side of the movable member 33 is swingably connected to a horizontal shaft 34 having a horizontal rotation center in the width direction of the subsequent belt 7 s. That is, the movable member 33 is formed to be swingable in the vertical direction about a horizontal shaft 34. A coil-shaped torsion spring 35 is fitted on the horizontal shaft 34. One end of the torsion spring 35 is connected to a first spring stopper 36a fixed to the base portion 6a, and the other end of the torsion spring 35 is connected to a second spring stopper 36b fixed to the movable member 33. Thus, the upstream side of the movable member 33 is biased downward by the torsion spring 35. In the present embodiment, the upstream side of the movable member 33 is biased downward by the torsion spring 35, but another type of spring such as a tension spring may be used instead of the torsion spring 35.

A stopper 37 is formed on the base portion 6a, and an upper surface of the stopper 37 abuts against a lower surface of the movable member 33 to regulate downward displacement of the movable member 33, so that the second support portion 31 formed on the movable member 33 is positioned at the same height as the first support portion 30. That is, the subsequent tape holding portion 26 has: a spring (torsion spring 35) that biases the upstream side of the movable member 33 downward; and a stopper 37 for limiting the downward displacement of the movable member 33 to position the second support portion 31 at the same height as the first support portion 30.

An operation portion 38 is formed at an upper portion of the movable member 33, and the operation portion 38 includes a lever for an operator to operate with a finger. The operator can lift the upstream side of the movable member 33 upward by lifting the operation portion 38 upward (see fig. 6). Thus, the movable member 33 is vertically displaceable relative to the fixed plate-like member 32 (see also fig. 9).

In fig. 7, a rotary shaft 39 having a horizontal rotation center in the width direction of the succeeding belt 7s is fixed to the movable member 33. A third sprocket 41 is provided on the rotary shaft 39 via a one-way clutch 40. A plurality of pins 41a are provided on the outer peripheral surface of the third sprocket 41 to the left (i.e., on the side close to the plate-like member 32). The pin 41a of the third sprocket 41 engages with the feed hole 7h formed in the succeeding belt 7s whose lower surface is supported by the first and second support portions 30 and 31 in a state where the movable member 33 is in contact with the stopper 37.

That is, the first support portion 30 supports the side portion of the succeeding belt 7s on the side where the feed hole 7h is formed from below. The third sprocket 41 attached to the horizontal rotary shaft 39 via the one-way clutch 40 constitutes a locking portion that locks the succeeding belt 7s to the first support portion 30 by engaging with the feed hole 7h of the succeeding belt 7 s.

The one-way clutch 40 allows the rotation of the third sprocket 41 when the subsequent belt 7s engaged with the third sprocket 41 moves in the direction of the insertion port 20a on the subsequent belt holding portion 26, but does not allow the rotation of the third sprocket 41 in the opposite direction. This can prevent the subsequent tape 7s from falling off the tape feeder 6. Thus, the third sprocket 41 attached to the horizontal rotary shaft 39 via the one-way clutch 40 is attached to the movable member 33.

In fig. 6 and 7, a projection 42 projecting above the first support portion 30 is formed on the right side surface of the plate-like member 32 at a position spaced above the first support portion 30. A tapered portion 42a is formed at the lower end of the projection 42, and the tapered portion 42a has a slope that approaches the right side surface of the plate-shaped member 32 as it goes downward (a slope that moves away from the right side surface of the plate-shaped member 32 as it goes upward). That is, the lower end of the protrusion 42 is narrower in width in the horizontal direction as it goes downward.

In fig. 8, the downstream end of the second support portion 31 is located upstream of the downstream end of the first support portion 30. Further, a notch portion 31a is formed on the downstream side of the second support portion 31, and the notch portion 31a has a slope whose side surface approaches the right side surface of the movable member 33 as it goes toward the downstream side. That is, the width of the one end portion on the insertion port 20a side (downstream side) of the second support portion 31 in the horizontal direction is narrowed toward the insertion port 20a side. In fig. 4 and 7, a side cover 43 fixed to the base portion 6a is provided on the right side of the movable member 33 so as to cover the periphery of the horizontal shaft 34.

Next, a function of separating the non-inserted portion of the subsequent tape 7s from the subsequent tape holding portion 26 will be described with reference to fig. 9. In fig. 9 (a), the subsequent tape 7s is held by the subsequent tape holding portion 26 in a state where the movable member 33 abuts on the stopper 37 and the second support portion 31 is at the same height position as the first support portion 30. When the non-inserted portion of the subsequent tape 7s is detached from the subsequent tape holding portion 26, the operator holds the operation portion 38 and lifts the operation portion 38 upward. Thereby, the movable member 33 rises integrally with the second support portion 31 and the third sprocket 41.

In fig. 9 (b), as the movable member 33 is raised, the subsequent belt 7s moves upward while supporting the lower surface on the right side on the second support portion 31, and the left side of the subsequent belt 7s abuts on the projection 42. When the movable member 33 further ascends, the pins 41a of the third sprocket 41 disengage from the feeding holes 7h of the subsequent belt 7 s. In fig. 9 (c), when the subsequent tape 7s is further raised together with the movable member 33, the subsequent tape 7s is twisted counterclockwise while being displaced to a position (right side) not overlapping with the first support portion 30 in a state of being pressed against the tapered portion 42a of the protrusion 42.

In fig. 9 (d), when the movable member 33 is further raised, the twist of the subsequent belt 7s increases, and finally, the right end portion of the subsequent belt 7s falls off from the second support portion 31. At this time, the right end portion of the subsequent belt 7s reliably falls off from the notch portion 31a on the downstream side of the second support portion 31. Further, since the left end portion of the succeeding belt 7s is displaced rightward by the projection 42, the succeeding belt 7s does not get caught by the first support portion 30 and falls downward (shown by a broken line in the figure).

The subsequent belt 7s separated from the subsequent belt holding portion 26 is moved to a position where the preceding belt 7p is located at a lower stage (see fig. 6). The detachment of the non-inserted portion of the succeeding tape 7s from the succeeding tape holding portion 26 is performed before the component supply from the preceding tape 7p is completed and the next carrier tape 7 is inserted. When the subsequent tape 7s (the next preceding tape 7p) is detached, the next carrier tape 7 (the next subsequent tape 7s) is inserted into the subsequent tape holding portion 26.

That is, the movable member 33, which is formed with the guide surface that guides the other side surface of the subsequent belt 7s in the width direction and the second support portion 31 and is displaceable in the vertical direction with respect to the plate-like member 32, constitutes a detaching portion that detaches and drops the non-inserted portion of the subsequent belt 7s from the subsequent belt holding portion 26. The detaching portion displaces the position of the second support portion 31 upward relative to the first support portion 30, and detaches the non-inserted portion of the succeeding tape 7s from the succeeding-tape holding portion 26. Further, in the escape portion, the locking portion (third sprocket 41) is fitted to the movable member 33, and the escape portion is separated from the first support portion 30 together with the second support portion 31.

Thus, the tape feeder 6 is provided; a belt running path 20; first belt conveying mechanism 21: the second belt conveying mechanism 23; a subsequent tape holding portion 26 having a first supporting portion 30 for supporting one side portion in the width direction of the non-inserted portion of the subsequent tape 7s from below and a second supporting portion 31 for supporting the other side portion from below, and holding the non-inserted portion of the subsequent tape 7s at a position separated from the non-inserted portion of the preceding tape 7p at an upper side; and a detaching portion (movable member 33) that displaces the position of the second support portion 31 upward relative to the first support portion 30, detaches the non-inserted portion of the subsequent tape 7s from the subsequent-tape holding portion 26, and drops the same. At least one end of the second support portion 31 on the insertion port 20a side is narrower in the horizontal direction toward the insertion port 20a side. This enables the work of replenishing the subsequent tape 7s to the tape feeder 6 to be performed efficiently.

Next, the structure and function of the curl correction unit 27 will be described with reference to fig. 10 to 12. In fig. 10 and 11, the curl correction unit 27 has the following functions: while the empty tape 7e discharged from the discharge port 20b after the component is taken out at the component take-out position P is guided to the discharge chute 13 below, the curl (curl) imparted to the carrier tape 7 while being stored in the reel 8 is corrected. In fig. 10, an attachment 6b is attached to the lower surface of a base portion 6 a. The downstream side of the attachment 6b stands along the downstream side of the base portion 6 a.

In fig. 11, the curl correction unit 27 is configured to include a first member 50, a second member 51, and a third member 52, and a guide path for guiding the blank tape 7e to the discharge chute 13 is formed by the first member 50, the second member 51, and the third member 52. The third member 52 is an upper end portion of the accessory 6 b. The first member 50 is fixed to the base portion 6a of the tape feeder 6, and has a first guide surface 50a that contacts the lower surface of the empty tape 7e discharged horizontally from the discharge port 20b and guides the empty tape 7e downward. The lower surface of the blank tape 7e directed downward while being guided by the first guide surface 50a is separated from the first guide surface 50a at the first contact portion 50b formed on the first guide surface 50 a.

In fig. 10 and 11, a front cover 54 is attached to an upper end portion of the accessory 6 b. The second member 51 is attached to an inner space surrounded by the front cover 54 so as to be swingable about a swing shaft 53 that is horizontal in the width direction of the blank belt 7 e. The second member 51 is biased in the clockwise direction by a compression spring 55 which is an elastic body disposed between the second member 51 and the front cover 54. A protrusion 51a protruding downward is formed at the lower end of the second member 51. The front cover 54 is provided with a stop member 56 (stopper), and the stop member 56 (stopper) abuts on the projection 51a to restrict the clockwise swing of the second member 51.

A second guide surface 51b that is in contact with the upper surface of the blank tape 7e discharged horizontally from the discharge port 20b and guides the blank tape 7e downward is provided on the side surface of the second member 51 facing the first member 50. The first guide surface 50a and the second guide surface 51b form a guide path for guiding the empty tape 7e discharged from the discharge port 20b downward. The second guide surface 51b is formed into a smoothly curved surface that curves toward the base portion 6a as it goes downward. A second contact portion 51c is formed on a second guide surface 51b below the second member 51 and below a portion attached to the swing shaft 53. The second contact portion 51c contacts the upper surface of the blank tape 7e that has been separated from the first contact portion 50b and moved downward, and presses the blank tape 7e toward the base portion 6 a.

In fig. 11, the third member 52 is located below the first member 50, and has a third guide surface 52a that comes into contact with the lower surface of the blank tape 7e that has been detached from the second contact portion 51c and moved downward. The third guide surface 52a is inclined in a direction away from the base portion 6a as it goes downward, and the blank tape 7e passing through the guide path formed by the first guide surface 50a and the second guide surface 51b is directed in a direction away from the base portion 6 a. The second guide surface 51b and the third guide surface 52a form a guide path for guiding the empty tape 7e detached from the second contact portion 51c downward.

The lower surface of the blank tape 7e directed downward while being guided by the third guide surface 52a is separated from the third guide surface 52a at a third contact portion 52b formed on the third guide surface 52 a. The empty tape 7e separated from the third contact portion 52b is pushed into the discharge chute 13, cut into a predetermined length by the cutting portion 14 located in the middle of the discharge chute 13, and collected in the collection box 12.

In this way, the first member, the second member, and the third member form a guide path for guiding the empty tape 7e, which is discharged in the horizontal direction from the discharge port 20b after the component is taken out by the component mounter 1, downward to the discharge chute 13. In the guide path, a first contact portion 50b that contacts the lower surface of the blank tape 7e, a second contact portion 51c that contacts the upper surface of the blank tape 7e, and a third contact portion 52b that contacts the lower surface of the blank tape 7e are arranged in order from above in which the blank tape 7e passes.

The curl correction device 27 includes: a movable member (second member 51) including the second contact portion 51c as a part; and an elastic body (compression spring 55) for urging the movable member to the upper surface of the blank tape 7e, the second contact portion 51c is displaceable in a direction of a straight line for connecting the first contact portion 50b and the third contact portion 52b transversely. Thus, the curl correction unit 27 bends the blank tape 7e passing through the guide path in a direction in which the upper surface is recessed by the first contact portion 50b, the second contact portion 51c, and the third contact portion 52b, thereby correcting the curl of the blank tape.

The curled blank tape 7e may be curled and caught in the discharge chute 13, and may be accumulated in the middle of the discharge chute 13. However, the curl is corrected by the curl correction unit 27, so that the empty tape 7e can be smoothly collected without being caught by the discharge chute 13.

Fig. 12 shows an example in which an empty tape 7e (carrier tape 7) thicker than that in fig. 11 is discharged from the discharge port 20b and introduced into the curl correction unit 27. When the thick dummy tape 7e passes through the second contact portion 51c, the second member 51 is pressed by the upper surface of the thick dummy tape 7e and displaced in a direction away from the base portion 6 a. That is, the second contact portion 51c is displaced according to the thickness of the blank tape 7e, and thus can be corrected by applying an appropriate force to the blank tape 7e to bend in the concave direction.

As described above, the tape feeder 6 (component feeding device) that feeds the components accommodated in the carrier tape 7 to the component mounter 1 includes the curl correction unit 27 that corrects the curl of the empty tape 7e, which is the carrier tape 7 from which the components have been taken out by the component mounter 1. This enables smooth recovery of the carrier tape 7 even if it is curled up.

The curl correction unit 27 described above is configured to be integrated with the attachment 6b attached to the base portion 6a, but the curl correction unit 27 is not limited to this configuration. That is, the curl correction unit 27 may be located between the component removal position P and the cutting unit 14 at a position to guide the empty tape 7e discharged from the discharge port 20b in the horizontal direction to the discharge chute 13 below. The curl correction unit 27 may be provided in a tape feeder that joins the subsequent tape 7s to the preceding tape 7p as a spliced tape and supplies the spliced tape.

Next, the structure and function of the reel holding portion 9 that holds the reel 8 and the reel pressing member 60 that is attached to the reel holding portion 9 and prevents the reel 8 from coming off, which are provided in the carriage 5, will be described with reference to fig. 13 and 14. In fig. 13, the carrier tape 7 having a terminal end portion 7t inserted into a part of the outer peripheral surface of a core 8a of a reel is wound around the reel 8. The terminal end portion 7t of the carrier tape 7 fed to the tape feeder 6 and pulled out from the reel 8 falls off from the core 8a of the reel.

In fig. 13, the reel holding portion 9 includes: a pair of reel guides 61 for clamping the reel 8 from both sides; and a first spool support portion 62a and a second spool support portion 62b that are located between the pair of spool guides 61 and that receive the outer periphery of the spool 8 at two points. The second reel supporting portion 62b located on the side (near side) in the direction in which the carrier tape 7 is pulled out is provided at a position lower than the first reel supporting portion 62a located on the back side, and the operation of moving the reel 8 into and out of the reel holding portion 9 is facilitated.

In fig. 13, the reel pressing member 60 includes: a connecting portion 60a formed at one end portion; a tape guide portion 60b formed at the other end portion; and a plate-shaped connecting portion 60c that connects the connecting portion 60a and the tape guide portion 60 b. The tape guide portion 60b is formed with a spool abutment surface 60d and a tape guide surface 60 e. The connecting portion 60a is detachably engaged with the second reel supporting portion 62b between the pair of reel guides 61. Thus, the spool pressing member 60 is detachably attached to the spool holding portion 9. Further, the spool pressing member 60 attached to the spool holding portion 9 can swing about the second spool supporting portion 62 b.

The spool abutment surface 60d is a curved surface and is formed as a surface on the spool 8 side of the tape guide portion 60b in a state where the spool pressing member 60 is attached to the second spool support portion 62 b. The tape guide surface 60e is a curved surface, and is formed as a surface of the tape guide portion 60b on the side opposite to the spool 8 in a state where the spool pressing member 60 is attached to the second spool supporting portion 62 b. The tape guide surface 60e guides the carrier tape 7 drawn out from the reel 8 held by the reel holder 9 toward the tape feeder 6 disposed above the reel holder 9. Thus, the carrier tape 7 drawn from the reel 8 held by the reel holding portion 9 passes between the connecting portion 60a and the tape guide portion 60b, and is fed toward the tape feeder 6 with its back surface facing the tape guide surface 60e while changing its path upward.

In fig. 13, when the carrier tape 7 drawn out from the reel 8 is pulled into the tape feeder 6 (arrow a), a force Fa is applied to the reel 8 held by the reel holder 9 in the direction of drawing out the carrier tape 7. Further, a force Fb for rotating the reel pressing member 60 in the clockwise direction is applied by the tension of the carrier tape 7.

The spool guide 61 is provided with a rotation stopper 63 that abuts against the end 60f of the spool pressing member 60 to regulate the position of the tape guide 60b approaching the spool 8. This prevents the tape guide 60b from contacting the reel 8, and prevents the reel 8, which rotates as the carrier tape 7 is pulled out, from rubbing against the tape guide 60b to generate dust. The rotation stopper 63 may have a shape capable of engaging with the spool pressing member 60, and may be a hole formed in the spool guide 61 to engage with a projection formed at the end 60f of the spool pressing member 60.

In fig. 13 and 14, a plate-shaped side plate 60g is provided at a position facing the side surface of the coupling portion 60c in the tape guide portion 60 b. The carrier tape 7 fed from the reel 8 to the tape feeder 6 is restricted in movement in the width direction by the side surface of the coupling portion 60c and the side surface of the side plate 60g, and is not separated from the reel pressing member 60 and fed to the tape guide surface 60 e. That is, the coupling portion 60c and the side plate 60g constitute a coming-off prevention portion 60h that prevents the carrier tape 7 from coming off the tape guide surface 60 e.

When the carrier tape 7 is drawn out by the tape feeder 6, the weight of the reel 8 becomes light, and the reel 8 is sometimes pulled by the drawn-out carrier tape 7 over the second reel support portion 62 b. However, the spool 8 that has passed over the second spool support portion 62b abuts the spool abutment surface 60d of the tape guide portion 60b, and the movement thereof is prevented at the position indicated by the two-dot chain line in fig. 13. This can prevent the spool 8 from falling off the spool holding portion 9.

When the carrier tape 7 is extracted to expose the terminal end portion 7t and the tape feeder 6 further pulls the carrier tape 7, the terminal end portion 7t is pulled out from the core 8a of the reel. In this case, the reel 8 is sometimes pulled by the carrier tape 7 and passes over the second reel supporting portion 62b, but the movement of the reel 8 is stopped at the position indicated by the two-dot chain line in fig. 13 by the reel contact surface 60d, and the reel 8 is prevented from coming off the reel holding portion 9.

As described above, the carriage 5 that holds the reel 8 on which the carrier tape 7 for storing the components supplied to the component mounter 1 is wound is a reel holding device including: a reel holding portion 9 that rotatably supports the reel 8; and a tape guide portion 60b connected to the reel holding portion 9 and capable of abutting on the outer periphery of the reel 8, the tape guide portion 60b abutting on the back surface of the carrier tape 7. This can prevent the reel 8 from falling off at low cost. Further, the movement of the reel 8 is stopped by the tape guide portion 60b, and the terminal end portion 7t of the carrier tape 7 can be reliably pulled out from the core 8a of the reel.

Next, another embodiment of the reel holding device (carriage 5) having the tape guide portion 60b will be described with reference to fig. 15. The other embodiment is different from the embodiment shown in fig. 13 in that a rotation stopper 63 is not provided on the spool guide 61. That is, the stop position in the case where the rotation of the spool pressing member 60 is not restricted. In fig. 15, when the carrier tape 7 drawn out from the reel 8 is pulled into the tape feeder 6 (arrow b), a force Fc is applied to the reel 8 held by the reel holder 9 in the direction of drawing out the carrier tape 7.

A force Fd is applied to the reel pressing member 60 to rotate the tape guide 60b toward the reel 8, and the tape guide 60b rotates to bring the reel contact surface 60d into contact with the outer periphery of the reel 8, thereby generating a force Fe to press the reel 8 back to the reel holding portion 9. This can prevent the spool 8 from falling off. Further, the movement of the reel 8 is stopped by the tape guide portion 60b, and the terminal end portion 7t of the carrier tape 7 can be reliably pulled out from the core 8a of the reel.

The reel holding device and the reel pressing member according to the present disclosure have an effect of preventing the reel from falling at low cost, and are useful in the field of mounting components on a substrate.

Claims (8)

1. A reel holding device that holds a reel on which a carrier tape for receiving a component supplied to a component mounting device is wound, wherein,

the reel holding device includes:

a reel holding portion that rotatably supports the reel; and

a tape guide portion connected to the reel holding portion,

the tape guide portion includes a reel abutment surface that can abut only the outer periphery of the reel and a tape guide surface that abuts only the back surface of the carrier tape.

2. The spool holding arrangement according to claim 1,

the reel abutment surface and the tape guide surface are curved surfaces.

3. The spool holding arrangement according to claim 1 or 2,

the tape guide has a coming-off prevention portion that prevents the carrier tape from coming off the tape guide surface.

4. The spool holding arrangement according to claim 1,

the reel holding portion includes a first reel supporting portion for supporting the reel on a rear side and a second reel supporting portion for supporting the reel on a near side.

5. The spool holding arrangement according to claim 1,

the tape guide portion is connected to the reel holding portion so as to be displaceable.

6. A reel pressing member detachably attachable to a reel holding device that holds a reel on which a carrier tape for housing a component is wound, wherein,

the reel pressing member has:

a connection portion detachably connected to a reel holding portion of the reel holding device that rotatably supports the reel;

a tape guide having a reel abutment surface that can abut only the outer periphery of the reel and a tape guide surface that abuts only the back surface of the carrier tape; and

and a coupling portion that couples the connection portion and the tape guide portion.

7. The spool pressing member according to claim 6,

the reel abutment surface and the tape guide surface are curved surfaces.

8. The spool pressing member according to claim 6 or 7,

the tape guide has a coming-off prevention portion that prevents the carrier tape from coming off the tape guide surface.

Images