JPH0794898A - Pressure-sensitive adhesive tape winding unit of parts feed unit - Google Patents

Abstract

PURPOSE:To prevent a pressure-sensitive adhesive tape from being peeled when the tape is fed by a method wherein a ratchet lever having a ratchet claw mates with the circumference of the winding reel and a transmission lever that transmits the rotation movement of the rotation lever to a tape feeding mechanism retarded by the amount of the length of the oval hole by means of a rotation mechanism are provided. CONSTITUTION:While tape is fed, a ratchet claw 59 swings a ratchet lever 55 in the counterclockwise direction by means of a first lever 60 and a second lever 61 in the link mechanism with the clockwise swinging of the swinging lever 22. Moreover, it moves around the adhesive tape reel 54 without rotating the adhesive tape reel 54. Therefore, the ratchet claw 59 moves by the swinging of the swing lever 22, and the sprocket 36 rotates retarded by the moment while the stopper 72 of the swing lever 22 moved in the oval hole 70 of the transmission lever 30. The parts are fed in the direction toward the place where the part is vacuum-clamped without peeling the pressure-sensitive adhesive tape 19 on the rear surface of the base tape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive tape for feeding a tape, sequentially supplying chip components mounted on the tape to a component taking-out position by a suction nozzle, and winding an adhesive tape to be peeled off almost at the same time as taking out the component. The present invention relates to an adhesive tape winding device for a component supply device that is wound around a reel.

[0002]

2. Description of the Related Art This type of prior art will be described with reference to FIGS. Reference numeral (120) is an elevating rod for performing a tape feeding operation. When the elevating rod (120) descends and presses the swing lever (122) downward, the swing rod swings clockwise from the position shown in FIG. A transmission lever (130) is rotatably supported at the lower end of the swing lever (122).
The movement of the swing lever (122) is transmitted to the feed lever (131) pivotally supported at the other end of the lever (130), so that the feed claw (133) is pivotally supported by the support shaft (132). It meshes with the feeding gear (134) and is rotated by a predetermined angle in the clockwise direction in FIG. 8 to a position regulated by the feeding stopper (135). As a result, the tape placed on the flat chute surface (137) formed on the cassette body (123) and extended from the reel cassette (not shown) on the left side of FIG. The feed pin (139), which is planted at regular intervals on the outer periphery of the sprocket (136), fits into the feed hole, and the feed gear (134)
The tape is fed to the right side in FIG. 8 by a predetermined pitch, and the leading part mounted on the tape is the feed pin (1
39) is located at the component suction position immediately before the fitted portion.

The adhesive tape (119) peeled off from the tape with the scraper (152) as a fulcrum is attached to the reel (154) which is pivotally supported on the side wall (124) by the reel support shaft (153). 154) is wound from the lower side. The adhesive tape reel (154) has a ratchet gear (158) formed on a step portion near the outer diameter of the back surface.

A mechanism for winding the reel (154) will be described. When the swing lever (122) is rotated clockwise, the first lever (160) of the link mechanism rotatably attached to one end of the lever (122) is shown in FIG.
The lever (160) is pushed upwards as shown in FIG.
The other end of the second lever (161) whose one end is also rotatably attached descends. Also, the lever (16
A roller (156) is pivotally supported on the other end side of 1),
The lever (161) and the ratchet lever (155)
The roller (156) is pressed against the ratchet lever (155) by the urging force of the tension spring (157) stretched between the rollers. A ratchet claw (159) capable of meshing with the ratchet gear (158) is pivotally supported on the ratchet lever (155), and the swing lever (122) lowers the lifting rod (120). When the ratchet pawl (159) is swung clockwise by the roller mechanism (156) via the link mechanism and the ratchet lever (155) is swung by a predetermined amount, the ratchet pawl (159) does not rotate the reel (154). Are moved to the position shown in FIG.

Then, when the tape feeding is completed, the elevating rod (120) rises and the swing lever (122) swings counterclockwise by the urging force of the tension spring (127), whereby the ratchet lever. (155) is rotated clockwise by the urging force of the tension spring (157) via the link mechanism. As a result, the ratchet claw (159) also moves clockwise, the reel (154) is rotated, and the adhesive tape (119) is wound on the reel (154) by a predetermined amount.

However, when the winding portion (166) has a large diameter while the adhesive tape (119) is being wound on the adhesive tape reel (154), the same amount of the adhesive tape (11) is used.
9) When the tape is wound, the rotation angle of the adhesive tape reel (154) becomes smaller than that when the diameter is small, and the ratchet pawl (1)
The movement distance of 59) is also shortened, and it does not return to the initial position shown in FIG. Then, since the tension spring (157) is in a tensioned state, the adhesive tape (119) that should be delivered together with the tape to the component take-out position at the time of the next tape delivery causes the ratchet claw (the ratchet claw () by the biasing force of the spring (157). Since the reel (154) is rotated via 159), it is peeled off before taking out the component, and the component pops out, so that the component cannot be properly supplied.

[0007]

Therefore, it is an object of the present invention to prevent the adhesive tape from being peeled off when the tape is fed.

[0008]

SUMMARY OF THE INVENTION Therefore, according to the present invention, the tape is sent out, the chip parts mounted on the tape are sequentially supplied to the part pick-up position by the suction nozzle, and the adhesive is peeled off almost at the same time as the part pick-up. In an adhesive tape winding device of a component supplying device for winding a tape on a winding reel, the winding reel is rotatably supported by a first shaft erected on a base of the component supplying device. A ratchet lever having a ratchet pawl formed on an outer peripheral portion for meshing with gear teeth, a turning lever which is also turned by a turning mechanism about a second shaft, the turning lever and the ratchet lever An urging body interposed between the lever and the engaging portion of the rotating lever is meshed through the elongated hole to transmit the rotation of the lever to the tape feeding mechanism with a delay of the length of the elongated hole. With transmission lever It is those provided.

[0009]

With the above construction, when the winding of the adhesive tape is completed, when the urging body interposed between the rotating lever and the ratchet lever is resisted by the urging force as compared with the initial state, first, The rotation mechanism rotates the rotation lever to a position where it abuts against the ratchet lever. Then, when the rotation lever is further rotated, the transmission lever is pulled by the locking portion that has finished moving in the elongated hole of the transmission lever, whereby the tape is delivered by the tape delivery mechanism by a predetermined amount. Also,
The ratchet lever continues to rotate, and the ratchet pawl is meshed with the gear tooth at the adhesive tape winding start position of the adhesive tape reel.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 2, (1) is an XY table that moves in the XY directions by the rotation of the X-axis motor (2) and the Y-axis motor (3), which is a chip-shaped electronic component (4) (hereinafter referred to as chip component or component). Printed circuit board (5) on which the
Is placed.

Reference numeral (6) is a supply table, which is a chip part (4).
A large number of component supplying devices (7) for supplying the electric power are detachably arranged. Reference numeral (8) is a supply base driving motor, which rotates the ball screw (9) to engage the supply base (6) with a nut (not shown) fitted to the ball screw (9) and fixed to the supply base (6). 6) is guided by the linear guide (10) and moves.

Reference numeral (11) is a turntable which rotates intermittently, and the suction nozzle (1) is provided on the outer edge of the table (11).
The mounting heads (13) having four 2) are arranged at equal intervals according to the intermittent pitch. The stop position of the mounting head (13) where the suction nozzle (12) sucks the component (4) from the supply device (7) and takes it out is the suction station, and the suction station is located at the outermost position of the turntable (11). The suction nozzle (12) for suctioning the component (4).

The position where the mounting head (13) stops next is a recognition station, and the component recognition device (14) recognizes the positional deviation of the component (4) which is picked up by the suction nozzle (12) at that station. . The position at which the mounting head (13) next to the recognition station stops is the angle correction station, and the suction nozzle (12) moves the first nozzle rotation roller (1) based on the recognition result by the recognition device (14).
By 5), it is rotated in the θ direction, and the positional deviation of the rotation angle of the component (4) is corrected.

The next stop position of the angle correction station is
It is a mounting station, and the component (4) to be sucked by the suction nozzle (12) of the station is mounted on the substrate (5). The next stop position next to the mounting station is the nozzle origin return station, and the nozzle (12) is rotated by the second nozzle rotation roller (69) by the amount of correction rotation of the nozzle (12) at the angle correction station. And return to the origin position.

The component supply device (7) will be described below. The supply device (7) intermittently feeds the components (4) mounted on the tape (16) at predetermined intervals according to the intervals of the components (4), and places the components (4) at the suction position of the suction nozzle (12).
To supply. As shown in FIG. 3, the tape (16) is a base tape (18) having a through hole (17) at a mounting position of the component (4) at a predetermined interval, and the tape from the back surface of the base tape (18). A feed hole (21) is provided, which comprises an adhesive tape (19) for adhering the component (4) through the through hole (17) and into which a feed pin (39) of a sprocket (36) described later enters.

Reference numeral (20) is an elevating rod for performing this tape feeding operation, which is located above the component supply device (7) moved to the suction position of the component (4) by the movement of the supply base (6). And is moved up and down by a drive source (not shown). (22)
Is a T-shaped swing lever pivotally supported by a cassette side wall (24) extending upward from the cassette body (23) about a support shaft (25).
0) abuts against an engaging piece (26) formed on the lever (22) and presses downward, so that the lever (22) swings clockwise from the position of FIG. 1 and the lifting bar (20) rises. The stopper pin (28) is urged by the urging force of the tension spring (27) stretched between the engagement piece (26) and the cassette side wall (24).
It swings to the position shown in FIG.

At the lower end of the swing lever (22), there are provided a locking portion (72) and a stopper (73) which are bearings that mesh with the elongated holes (70) and (71) of the transmission lever (30). Has been. Then, the movement of the swing lever (22) is transmitted to the feed lever (31) pivotally supported at the other end of the lever (30) with a play corresponding to the length of the elongated hole (71), and The hole (71) and the stopper (73) serve as a guide when the locking portion (72) moves in the elongated hole (70).

The feed lever (31) is swingably attached to the cassette body (23) about the feed lever support shaft (32) as a fulcrum. 1, the feed claw (33) pivotally supported at one end meshes with the feed gear (34) pivotally supported by the support shaft (32), and the feed stopper (3) rotates clockwise in FIG.
It is rotated by a predetermined angle to the position regulated in 5) (see FIG. 4). A sprocket (36) is integrally attached to the feed gear (34), is mounted on a flat chute surface (37) formed on the cassette body (23), and is a reel (not shown) on the left side of FIG. The feed pin (39), which is planted at regular intervals on the outer circumference of the sprocket (36), is fitted into the feed hole (21) formed in the tape (16) extended from the cassette, and the feed is performed. The tape (16) is sent to the right side in FIG. 1 by a predetermined pitch by the rotation of the gear (34), and the leading part (4) mounted on the tape (16).
Is located at the component suction position immediately before the portion where the feed pin (39) is fitted. The gear (34) is prevented from rotating counterclockwise in FIG. 1 by a reverse rotation preventing mechanism (not shown).

Reference numeral (43) is a suppressor pivotally supported by the support shaft (44) on the cassette side wall (24), one end of which is engaged with the protrusion (42) provided on the cassette side wall (24).
The other end is urged to rotate clockwise in FIG. 1 by the urging force of a torsion coil spring (45) wound around a support shaft (44) that engages with the suppressor (43), and the chute surface ( 37) The tape (16) fed on the top is pressed from above to regulate the lifting. Figure 1 of the suppressor (43)
A pin (48) is planted at the tip on the right side of the spring (5) extending from the cassette body (23) and attached.
0), the suppressor pressing piece (51), which is urged clockwise in FIG. 1 to be pivotally supported, engages with the pin (48), and the downward pressing of the suppressor (43) causes the suppressor (4) to move.
Since the length of 3) is long, the spring (45) alone does not provide sufficient pressing force and is reinforced. Also, the suppressor (43) is bent to have a U-shaped cross-section with an open lower part in order to increase the strength, and covers the chute surface (37) and also from the side of the chute surface (37). The tape (16) is roughly regulated.

The adhesive tape (19) peeled off from the tape with the scraper (52) as a fulcrum is pivotally supported on the side wall (24) by the reel support shaft (53).
The reel portion (66) is wound up from below the reel (54). The adhesive tape reel (54) has a ratchet gear (58) formed on a step portion near the outer diameter of the back surface.

A mechanism for winding the reel (54) will be described. When the swing lever (22) is rotated clockwise, the first lever (60) of the link mechanism rotatably attached to one end of the lever (22) moves upward as shown in FIG. The second lever (61) is pushed up and one end of the lever (60) is also rotatably attached to rotate about the fulcrum (65), and the other end moves down. A roller (56) is pivotally supported at the other end of the lever (61), and a tension spring (57) stretched between the lever (61) and the ratchet lever (55) is attached. The roller (56) is pressed against the ratchet lever (55) by the force. The ratchet lever (55) includes a torsion coil spring (64) on the ratchet gear (58).
Ratchet claw (5
9) is pivotally supported, and when the swing lever (22) swings clockwise due to the lowering of the lifting rod (20), the ratchet lever (55) is pushed by the roller (56) via the link mechanism. When the ratchet pawl (59) is swung by a predetermined amount, the ratchet pawl (59) is moved to the position shown in FIG. 4 without rotating the reel (54).

Then, when the tape (16) is delivered, the elevating rod (20) is raised and the swing lever (22) swings counterclockwise by the urging force of the tension spring (27). The ratchet lever (55) is rotated clockwise by the urging force of the tension spring (57) via the link mechanism. As a result, the ratchet pawl (59) also moves in the clockwise direction to rotate the reel (54) and return to the initial position shown in FIG. At this time, the adhesive tape (19) is wound up by a predetermined amount. Reference numeral (62) is a reverse rotation preventing claw that meshes with the ratchet gear (58) to prevent the reverse rotation of the reel (54).

The operation will be described below. First, the operator removes the suppressor pressing piece (51) from the pin (48) and lifts the suppressor (43) against the spring (45). In this state, attach the tape (16) to the chute surface (3
7) Attach the feed pin (39) to the feed hole,
After the tip of the adhesive tape (19) is wound around the adhesive tape reel (54) pivotally supported on the side wall (24) through the reel support shaft (53), the suppressor (43) is lowered and the spring (45). The tape (16) is pressed by the urging force of.

After this, a pressing piece (51) is attached to the pin (48).
To increase the force with which the tape (16) of the suppressor (43) is pressed by the spring (50). Then, depending on the type of the printed circuit board (5) to which the chip component (4) is to be mounted, the worker arranges the component supply device (7) on the supply base (6). In this way, when the supply device (7) is arranged on the supply base (6), the suction nozzle (12) sucks the component (4) from the supply device (7) and the printed circuit board (5).
The mounting operation is performed.

Next, when an operation section (not shown) is operated and automatic operation is started, the motor (3) is rotated to supply the desired component (4) via the ball screw (9). Suction nozzle (1
The supply table (6) is guided and moved by the linear guide (10) so as to move to the suction position below 2). When the supply device (7) is stopped, the elevating rod (20) descends to come into contact with the engaging piece (26) of the swing lever (22) and push it down, so that the swing lever (22) moves clockwise in FIG. The feed lever (31) swings clockwise through the transmission lever (30), and the feed claw (33) rotates the feed gear (34) to rotate the sprocket (36). . The rotation of the sprocket (36) causes the feed pin (39) to move to the tape (1
6) Send a predetermined pitch. At this time, the transmission lever (30)
Through the long hole (70) of the rocking lever (22).
While 2) moves from the state shown in FIG. 1 to the state shown in FIG. 6, the sprocket (36) is not rotated by the swing lever (22) via the transmission lever (30).

Further, during the feeding operation of the tape (16), the suppressor (43) holds the tape (16) so that it does not float upward. It should be noted that the ratchet pawl (59) swings in the clockwise direction of the swing lever (22) during this feeding, via the first lever (60) and the second lever (61) of the link mechanism, and thereby the lever (61). Without rotating the ratchet lever (55) around the ratchet gear (58) of the adhesive tape reel (54) by pushing the ratchet lever (55) counterclockwise by the roller (56). (See FIG. 4). Therefore, the ratchet lever (55) is first moved by the swing of the swing lever (22).
The ratchet pawl (59) is moved by the sprocket (36) so that the elongated hole (70) of the transmission lever (30) described above is moved.
The locking portion (72) of the rocking lever (22) is rotated in the inside of the chamber with a delay of the time from the state shown in FIG. 1 to the state shown in FIG.

When the component (4) is sent to the suction position, the suction nozzle (12) is lowered almost at the same time to suck the component (4). Thus, until the component (4) is sucked by the suction nozzle (12), the base tape (1
8) The adhesive tape (19) on the back surface is not peeled off and is sent out in the component suction position direction together with the tape (16). When the above-mentioned feeding of the tape (16) is finished, the elevating rod (20) rises and shakes. The moving lever (22) is swung counterclockwise from the state of FIG. 4 to the state of FIG. 5 by the urging force of the spring (27), so that the ratchet gear (58) is fed at the time of the feeding.
The ratchet pawl (59), which has moved around without rotating the reel (54), now has a second lever (6).
1) and the ratchet lever (55) are urged by a spring (57) interposed between the lever (55) and the ratchet gear (5).
8) The adhesive tape reel (54) is rotated clockwise by a predetermined amount to remove the adhesive tape (19) from the scraper (52).
Take up a predetermined amount with the as a fulcrum. When the tape (19) has been wound by a predetermined amount, the reel (54) stays at that position with tension applied to the tape (19), but the second lever (61) is urged by the urging force of the spring (27). Since the side continues to rotate further, as shown in FIG. 5, the tension spring (57)
Is in a tensioned state. Naturally, the spring (5
The biasing force of 7) is set to be weaker than the biasing force of the spring (27), and when the tape (19) is tensioned, the biasing force of the spring (57) prevents the tape (19) from breaking. It is set.

Next, when the nozzle (12) adsorbs the component (4) and rises, the turntable (11) intermittently rotates while peeling off the adhesive tape (19), as described above, at about the same time. The nozzle (12) moves to the suction station, and the supply device (7) for supplying the component (4) to be taken out next moves to the suction position of the nozzle (12) by the rotation of the motor (8). When the nozzle (12) sucks the component (4), the turntable (11) rotates intermittently, and the nozzle (12) that first sucks the component (4) moves to the recognition station.

Then, at the station, the nozzle (1
The component (4) attracted by 2) is the component recognition device (14).
Be recognized by. The nozzle (12) stopped at the recognition station due to the intermittent rotation of the next turntable (11)
Moves to the angle correction station, and the nozzle rotation roller (15) corrects the positional deviation of the rotation angle of the component (4) in the θ direction based on the recognition result of the recognition device (14).

The nozzle (1) that was stopped at the angle correction station due to the intermittent rotation of the next turntable (11)
2) moves to the mounting station, and the X-axis motor (2) and the Y-axis motor (3) are rotated to make a correction based on the recognition result of the recognition device (14), so that the XY table (1) becomes XY.
The component (4) sucked by the nozzle (12) is mounted at a position to be mounted on the printed circuit board (5) by moving in the direction.

The next suction operation will be described with reference to FIGS. 5 and 6. For convenience, the following description will be given assuming that the component (4) is taken out from the same component supply device (7). here,
The component supply device (7) is in a state in which the tension spring (57) is pulled as shown in FIG. 5 as compared with the state of FIG. 1 (state described in the prior art). However, in this embodiment, as described above, the tape (16) is fed out after the ratchet pawl (59) is moved to the winding start position of the adhesive tape (19) by the swing of the swing lever (22). Since the sprocket (36) is rotated, the adhesive tape (19), which should be delivered to the component take-out position when the tape (16) is delivered at the time of the next tape delivery, is urged by the spring (57). By rotating the adhesive tape reel (54) via the ratchet claw (59), it is possible to prevent the component (4) from being peeled off before it is taken out.

That is, when the component supply device (7) is in a state where the spring (57) is pulled as shown in FIG. 5, the elevating rod (20) descends and the rocking lever ( Two
2) Swing. However, the transmission lever (30) is not moved while the locking portion (72) of the lever (22) moves in the elongated hole (70). Therefore, the tape (16) is not delivered. On the other hand, in synchronization with the swing of the swing lever (22), the second lever is moved through the first lever (60) of the link mechanism.
The lever (61) starts to move counterclockwise around the fulcrum (65). The locking portion (72) is shown in FIG.
The state in which the spring (57) is pulled is returned to the state shown in FIG. 1 by the time when the spring (57) is moved to the position shown in FIG. Further swing lever (22)
Is swung, the feed lever (31) is swung clockwise through the transmission lever (30), and the feed claw (33) turns the feed gear (34) to move the sprocket (36). Rotate. By the rotation of the sprocket (36), the feed pin (39) feeds the tape (16) by a predetermined pitch. Further, the lever (61) is further rotated and pushed by the roller (56) of the lever (61) to swing the ratchet lever (55) counterclockwise, whereby the ratchet claw (59) is adhered. The tape reel (54) is moved around the ratchet gear (58) without rotating the reel (54) (see FIG. 4).

When the component (4) is sent to the suction position, the suction nozzle (12) is lowered almost at the same time to suck the component (4). As described above, when the component (4) is sucked by the suction nozzle (12), the adhesive tape reel (54) is rotated clockwise as described above, whereby the adhesive tape (19) is peeled off. . The same applies to the case where the component (4) is taken out thereafter and the diameter of the adhesive tape (19) wound on the adhesive tape reel (54) when the adhesive tape (19) is wound is large. is there. That is, as shown in FIG. 7, the ratchet lever (5
The return movement of 5) is smaller than that in the case of the small diameter shown in FIG. However, in this case as well, the tensioned state of the spring (57) returns to the state shown in FIG. 1 before the delivery of the tape (16) is started, so that the adhesive tape ( 19) is not peeled off. From the above, the length of the long hole (70) should be set so as to eliminate the tensioned state of the spring (57) when the diameter is large,
Therefore, when the diameter is small, some waiting time is required until the feeding of the tape (16) is started after the tensioned state of the spring (57) is released.

The above operation is repeated and the components (4) are sequentially picked up from the respective component supply devices (7). Also, when the tape (16) is sent out, the swing lever (22)
The elevating rod (20) for swinging the component supply device (7) is provided at the movement stop position of the component supply device (7), but it is not limited to this and may be provided for each component supply device (7). If the structure does not move, a lever or the like may be installed below the supply device (7) to swing the lower end portion of the swing lever (22).

[0035]

As described above, according to the present invention, it is possible to prevent the adhesive tape from being peeled off when the tape is fed.

[Brief description of drawings]

FIG. 1 is a front view showing an adhesive tape reel in an initial state.

FIG. 2 is a plan view showing a component mounting device.

FIG. 3 is a perspective view of a tape.

FIG. 4 is a front view showing the component supply device during a delivery operation.

FIG. 5 is a front view showing the component supply device when the adhesive tape is wound by a predetermined amount.

FIG. 6 is a front view showing the component supply device during the next tape feeding operation.

FIG. 7 is a front view showing a component supply device at the time of tape feeding operation with a large diameter.

FIG. 8 is a front view showing a conventional adhesive tape reel.

FIG. 9 is a front view showing a conventional adhesive tape reel.

[Explanation of symbols]

 (7) Parts supply device (19) Adhesive tape (20) Lift bar (22) Swing lever (27) Tension spring (54) Adhesive tape reel (55) Ratchet lever (56) Roller (57) Tension spring (58) Ratchet gear (59) Ratchet pawl (60) First lever (61) Second lever (70) Slotted hole (72) Locking part

Claims (1)

[Claims] 1. A component supply in which a tape is delivered and chip components mounted on the tape are sequentially supplied to a component removal position by a suction nozzle, and an adhesive tape which is peeled off at substantially the same time as the removal of the component is wound on a winding reel. In an adhesive tape winding device of the device, the device is rotatably supported by a first shaft erected on the base of the component supply device and meshes with gear teeth formed on the outer peripheral portion of the winding reel. A ratchet lever having a ratchet pawl for rotating, and a rotating lever which is also rotated by a rotating mechanism about the second shaft,
An urging body interposed between the rotation lever and the ratchet lever is meshed with a locking portion of the rotation lever through its elongated hole so that the rotation of the lever is transferred to the tape feeding mechanism. An adhesive tape winding device for a component supply device, which is provided with a transmission lever that delays transmission by the length of the hole.