JPH02278900A - Slide friction device for peeling reel - Google Patents

Abstract

PURPOSE:To facilitate the regulation of a slip frictional resistance by providing magnets or magnetic units at peeling reel side or support side, and restricting the rotation of the reel. CONSTITUTION:A peeling reel 47 is mounted at a base 3A in a state that an iron steel plate 74 is held in such a manner that an area in contact with a magnet 71 is maximum, a yarn is secured to a cover tape retainer P, the yarn is slightly wound on a reel socket 49, the end is attached to a spring balancer, and the numeric value of the balancer is examined by pulling the yarn. In this case, its slip frictional resistance becomes maximum, the plate 74 is so deviated and held by rotating the recess 68B of an eccentric stud 68 by a minus screwdriver and rotating an eccentric part 68A that the numeric value of the balancer becomes an optimum slip frictional resistance while the area in contact with the magnet 71 becomes minimum when its slip frictional resistance becomes minimum. Thus, the regulation of the slip frictional resistance can be facilitated, and secular change after the regulation can be reduced.

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention provides a tape that is rotatably attached to a support part for winding a fixing tape that has been peeled off from a holding band holding a large number of nap-like electronic components. Regarding the stripping reel.

(b) Rotational force was generated in the stripping reel due to vibration during movement when selecting a conventional technical parts supply device. This loosened the tension on the already wound fixing tape, causing it to unravel or even break due to being pulled.

Therefore, in order to regulate the rotation of the ψf stripping reel, the 18th
As shown in the figure, installation is done by attaching a Drymet washer to the reel stud (168) protruding from the part (103A).
inserting a stripping reel (147) through (190);
The locking U nut (170) is secured through the wave washer (191), and the pressing force of this wave washer (191) is adjusted with the U nut (170) to install the part (103A). Stripping reel (147)
Sliding friction resistance was generated between the two.

However, due to the biasing force and restoring force of the wave washer (191'), there was a significant change over time after adjustment.

Furthermore, adjusting the sliding friction resistance was also troublesome.

Furthermore, in a component supply device in which the stripping reel is frictionally rotated by a friction rotating body as means for rotating the stripping reel, after a predetermined amount of fixed tape is wound around the stripping reel, the friction rotating body Once the friction caused by
The stripping reel rotated in the opposite direction due to the reaction of the tension on the right side of the fixing tape, causing the fixing tape to become loose. Such cases have also been dealt with using the techniques described above.

(c) Problems to be Solved by the Invention Therefore, it is an object of the present invention to reduce the change in sliding friction resistance over time after adjustment, and to facilitate the adjustment itself.

(d) Means for Solving the Problems Therefore, the present invention provides a stripping reel rotatably attached to a support part for winding the fixing tape peeled off from a holding band holding a large number of nap-like electronic components. In the
A magnet or a magnetic material is provided on the stripping reel side or the supporting portion side, respectively, to regulate the rotation of the stripping reel.

(f) Effect From the above configuration, the rotation of the stripping reel rotatably attached to the support part can be restricted by the attraction force between the magnet and the magnetic body.

(f) Examples Examples of the present invention will now be described in detail based on the drawings.

(1) is a base of an electronic component automatic mounting apparatus to which the present invention is applied.

(2) is a rotating disk that is intermittently rotated by a drive system (not shown), and the bottom surface of the rotary disk picks up nap-shaped electronic components (hereinafter referred to as nap components (W)) from the component supply device (3), adsorbs them, and transports them. A plurality of suction nozzles (4) are installed.

(5) When the suction nozzle (4) suctions the nap part (sensor), the center of the nap part (shank) and the nozzle (4) are aligned, and the printed circuit board (not shown) is attached in the mounting direction. A positioning device that rotates the nap parts (ken) according to the
A plurality of positioning units are provided to accommodate the thickness of the parts.

(6) is an XY child table on which the printed circuit board is placed, and its positioning and movement are controlled in the X-axis direction and the Y-axis direction.

(7) (8) is the first conveyor that supplies and conveys the printed circuit board onto the XY child table 6) and the XY child table 6.
) is the second conveyor that discharges and conveys the mounted printed circuit board.

(9) is a conveyance device that conveys the printed circuit board on the first conveyor (7) onto the XY child table 6) and the printed circuit board on the XY child table 6) onto the second conveyor (8). .

(10) is a component supply stand installed on the base (1), which is movable in the left and right direction in Fig. 6 via the support stand (11) and the linear guide (12) and linear guide bearing (13). Support pins (14) and (15) provided at the bottom of the component supply device (3) are positioned in mounting holes (not shown) provided in the component supply table (10). .

(16) is a nap part (
cover tape (17A) (
17B>, the tape serves as a retention band in which the nap part m is enclosed, and one of the flanges (16C) (16D) provided in the longitudinal direction has the first, The pins of the second sprocket (18) (19) (
20) A feed hole (16E) that meshes with (21) is provided, and a chute (22) as a support guide plate abuts against the lower surface of the other collar (16D) to support the tape (16).

(23) is a tape reel mounting plate to which a tape reel (24) on which the tape (16) is wound and stored is attached, and is attached to the component supply device (3) via a fixing pin (25); It is supported so as to be able to swing up and down using this fixing pin (25) as a fulcrum, and the elongated hole (2
6) and a guide pin (27), its vertical swing range is regulated.

The component supply device (3) includes a first sprocket (18) rotationally driven by a drive system (not shown), and a second sprocket (18) that is spaced apart from and connected to the first sprocket (18).
sprocket (19), first and second timing pulleys (28 bars 29) provided on these first and second sprockets (18) and (19), respectively, and these first and second timing pulleys. (28) (29) Timing belt that can be freely rotated synchronously with a complete hook in between (30
), and the first sprocket (18) located on the downstream side is located above the second sprocket (19).

(36) is a holding plate which is placed above the chute (22) and is urged downward by a spring (37), and a tape (16) is placed between the holding plate (36) and the chute (22).
is fed, and the timing belt (30) synchronizes the first and second timing pulleys (28) and (29) to rotate the tape (16) from the second sprocket (19) side to the first sprocket. It is linearly sent out diagonally upward to the (18) side.

Further, a gear (38) is integrally provided on the first sprocket (18) together with the first timing pulley (28), and this gear (38) is connected to the fixed frame (39).
The gear (not shown) is rotatably supported on a fixed shaft (not shown) fixed to the
A swinging arm (41) provided with a swingable gear feed pawl (40) that engages with the fixed frame (38) is swingably supported, and this swinging arm (41) is attached to the fixed frame (38).
9), the gear (38) is rotated in a ratchet manner by being swung by the pushing action of the button shear (43) driven by an external drive against the biasing force of the spring (42) installed between the As a result, the first sprocket (1B) is rotated by one pitch, and the tape (16) is rotated by one pitch.
Send out the pitch.

That is, the pin (40A) protruding from the gear feed pawl (40)
) and the bin (39A) protruding from the fixed frame (39), a spring (44) is connected to the gear feed pawl (4).
0) and presses it against the gear (38), and also serves to return the swing arm (41).

In addition, (45> is a locking claw, and the fixed frame (39)
), and is elastically engaged with the gear (38) by the biasing force of the spring (42), so that when the swing arm (41) returns, the first sprocket <
18> to prevent reverse rotation.

(46) is a cover tape peeling device, in which a predetermined amount of cover tape (17A) has been peeled off in advance and is folded back using the presser plate (36) as a fulcrum and held on a peeling reel (47). ) is wound onto the reel (47).

The structure of the stripping reel (47) will be described in detail below.

(48) in FIG. 1 is a reel/socket plate, and a reel/socket (49) around which the cover tape (17A) is wound is fixed with screws (50), (51), and (52).

(53) is a knoll drive facing the reel socket plate (48), and a screw (56) as a fitting member provided on the fitting member installation stand (53A) of the reel drive (53) ( 57) are fitted to the reel/socket plate (48) by being fitted into the keyholes (54) and (55) for fitting the fitting members, respectively, which are provided in the reel/socket plate (48). Fixed.In addition,
A ball plunger (58) is provided on the reel drive (53) to prevent looseness between the reel socket plate (48) and the reel drive (53) when mating with the reel drive (53).
) (59) urges the reel/socket plate (48) in the direction of separation. That is, the reel socket plate (48)
The large diameter part (5) of the screw mounting hole (54) (55)
4A) (55A), loosely insert the screws (56) (57) of the reel drive (53) (see Figure 9), and the ball (60 bar 61) of the ball plunger (5g) (59).
) while sinking against the spring (64) (the other not shown), rotate the reel socket plate (48) relative to the reel drive (53) (see Figure 10), and insert the screw mounting hole. The small diameter portion (54) of the hole (54) (55)
B) By pushing it all the way to (55B), the balls (60) (61) of the ball plungers (58) (59) are pushed into the ball pressing holes (62) (63) provided in the reel socket plate (48). ) is stopped by a part of the ball (60) (sl) fitting into the ball (60) (sl).

This completes the fitting between the reel socket plate (48) and the reel drive (53) (see Figure 11), but the spring (64L (the other not shown) is connected to the reel socket plate (48)). There is no wobbling because the reel drive (53) is biased in the direction away from the reel drive (53).Of course, at this time the reel socket plate (48) is pressed against the screw (
56) Retaining part (56A) provided at the tip of (57)
The biasing force is regulated by (the other not shown) (see FIG. 2).

(67) is a slit provided radially in the reel socket plate (48), and the reel socket (49)
It consists of a first slit (67A) that extends inward from the outer diameter, and a substantially trapezoidal second slit (67B) connected to the first slit (67A). Use this to fix the cover tape (17A) to the reel/socket plate (48). That is, as shown in FIG.
) through the first slit (67A) and pull it in the direction of the arrow through the second slit (67B) to release the reel socket plate (48) and knoll socket (49). Installation is between the surfaces (cover tape holding part (P)
)) and clamp it elastically. Naturally, the cover tape (17
), the outer periphery of the reel socket (49) is chamfered (49C) in the direction in which the reel socket plate (48) is attached, as shown in FIG.

The stripping reel (47) is configured as described above, and includes the base (3A) of the parts supply device (3) and the base (3A).
A reel drive (53) is inserted through a bearing (69) into a support consisting of an eccentric stud (68) fixed with a screw (3B) to the reel drive member, and is fixed by a stopper (70).

A sliding friction device (47A) that provides a certain degree of sliding frictional resistance in a fixed state between the base (3A) and the stripping reel (47) will be explained.

(71) in Fig. 2 is a ring-shaped magnet that provides sliding friction resistance between the base (3A) and the stripping reel (47) by magnetic force, and the - side is in contact with the yoke (72), and the other side is in contact with the yoke (72). It is in contact with a steel plate (74) having a D-shaped hole as a magnetic material through a low-friction Teflon sheet or polyslider sheet (73) placed on its upper surface. Further, the steel plate (74) is connected to the eccentric stud (68).
It is in contact with the eccentric part (68A) of the eccentric stud (
By rotating the concave portion (68B) of the head of 68) with, for example, a flathead screwdriver, the eccentric portion (68A) can be rotated, thereby being moved in accordance with this rotation. In other words, steel plate (
74) is located at the position shown in Figures 2 and 3 (magnet (74)
The steel plate (74) and the magnet (71) can be moved from the position shown in Figures 4 and 5 (the area in contact with the magnet (71) is the minimum) from the position shown in Figures 4 and 5 (the area in contact with the magnet (71) is the minimum).
The sliding friction resistance between the base (3A) and the stripping reel (47) is changed depending on the proportion of the area in contact with the base (3A) and the stripping reel (47). Note that even if the positions of the magnet (71) and the steel plate (74) are replaced, the same effect can be obtained.

Then, with the tape presser rod (75) lowered, the cover tape (17A) is rotated by the friction drum which is biased by the compression spring (78) via the belt (77) and rotated by the drive motor (76). The stripping reel (47) is pressed against the stripping reel (79) and driven to rotate.

(80) is a fixed guide that prevents the peeled off cover tape (17A) from curling upward.

Here, a reel/socket plate (48) and a reel/socket (49) made of synthetic resin or the like of the peeling reel (47) are shown.
) will be explained based on FIG. 12 about a fixing device for the cover tape (17A) of the peel-off reel when they are fixed together.

(67C) attaches the cover tape clamping fitting (81) with the screw (8
2) A space provided in the reel/socket plate (48A) for stopping.

Then, by fixing the cover tape clamping fitting (81) in the space (67C) as shown in FIG. 12, a cover tape clamping part (,) is formed. The end portion of the cover tape (17A) is sandwiched and fixed in the cover tape holding portion (n). At this time, the cover tape (17A
) by pulling the end of the screw (82) in the direction of the screw (82).
Since a force is generated to rotate the cover tape clamping fitting (81) in the direction of the arrow around the cover tape (82), the cover tape (1
7A) will be sandwiched.

Also, when installing the cover tape (17A) between the cover tape clamping fitting (81) and the reel socket (49A), insert the cover tape (17A) between the surfaces (cover tape holding part (P)) and hold the cover tape (17A). You can also do it.

Next, as shown in Figure 1'3, the reel socket plate (4
8B) and the reel drive (53), the mating members (screws (56) (57) (84)) and the mated member (screw mounting holes (54) (55) (83)
) and ball plungers (58) (59) (8
5) may be provided three times each, or more may be provided. By doing this, the reel socket plate (48B)
The fitting between the reel socket (49) and the reel socket (49) becomes even more reliable, and rattling and detachment of the two can be prevented.

Furthermore, due to the difference in the thickness of the cover tape (17A), the cover tape (17A) is
If the stripping reel (A) does not wind up completely, or the stripping reel (4
7) There are cases where the winding part is left over, for example, if the reel socket has a large diameter (49B).
Use the reel/socket plate (48B) to which (1-dot chain line in Figure 13) is attached.

At this time, the second slit (67B) as shown in the figure
By providing two slits (67D), reel sockets with different diameters can be accommodated. That is, when using a reel socket (49) with a small diameter, the reel socket plate (48B) and reel socket (49) are attached between the surfaces (cover tape holding part (P)). Also, when using a reel socket (49B) with a large diameter, the reel socket plate (48B) and reel socket (4
9B) between the surfaces (cover tape holding part (P'
)) Insert the cover tape (17A) and fix it. Of course, here the second slit (67B) is two slits (67D), but the Knoll socket (49
) It is also possible to provide more depending on the type.

Further, as shown in FIGS. 2, 4, and 14, a groove (86) is provided on the outer peripheral surface of the fitting member installation stand (53A), and a C-shaped housing (87) is provided in the groove (86). , and by pressing the C-shaped ring (87) into the recess (88) provided on the inner circumferential surface of the reel socket (49), the fourteenth
As shown in the figure, a force F is applied diagonally downward to the reel socket (49), thereby preventing the reel socket plate (48) from coming off.

The operation will be explained in detail below based on the drawings.

A desired component supply device (3) is selected by the horizontal movement of the component supply table (10), and the nap component inside the tape (16) is sucked and taken out by the suction nozzle (4).

During this time, the following operations are being performed.

Here, the sliding friction device (
The sliding friction resistance setting operation of 47A) will be explained.

First, the rotational force of the friction drum (79) by the drive motor (76) when winding up the cover tape (17A) and the peeling reel (
In consideration of the reverse rotational force of the component feeder (47), vibrations during selective movement of the parts supply device (3), and reaction when the cover tape presser rod (75) rises, etc., the stripping reel ( 47) Find the optimal sliding friction resistance so that it does not rotate.

Then, the sliding friction device (47A) of the stripping reel (47) is adjusted to achieve the sliding friction resistance.

That is, the stripping reel (47) is attached to the base (3A) with the steel plate (74) held in the position shown in FIGS. 2 and 3 (the area in contact with the magnet (71) is maximum). For example, fix a thread to the cover tape holding part (P), wind the thread a little around the reel socket (49), attach the tip to a spring scale, and check the value on the spring scale by pulling the thread. At this time, the sliding frictional resistance is at its maximum, and the steel plate (74) is moved to the position (magnet) shown in FIGS. 4 and 5, where the sliding frictional resistance is the minimum.
Rotate the steel plate (74) through the concave portion (68B) of the eccentric stud (68) with a flat head screwdriver so that the value on the spring scale provides the optimum sliding friction resistance between The steel plate (74) is shifted by rotating the eccentric part (68A), and the steel plate (74) after adjustment is held in that position.

Then, as shown in Figure 15, sprocket (1g) (
19), which is housed in the tape (16).
When the first nap part (W) is sent out to the part take-out position (T), the cover tape (17A) is peeled off with the cover tape (17A) remaining on the first nap part (W), as shown in Fig. 16. , the suction nozzle (4) is lowered, and its tip <4
A) is brought close to the cover tape (17A) on the nap part (17A) until there is a slight gap and then stopped.

Next, the friction drum (79) is brought into contact with the stripping reel (47) while lowering the cover tape presser rod (75), and the drive motor (76) is rotated to remove the friction drum (79).
The stripping reel (47) rotates around the eccentric stud (68) via the eccentric stud (68) due to slippage between its magnet (71) and the steel plate (74) on the support side, and the cover tape ( 17A) and cover tape (17A).
) is peeled off from the base tape (16A) of the tape (16) to open the square hole (16B) of the base tape (16A) and expose the nap part (width) inside the tape (16).

At this time, the steel plate (74) due to the magnetic force of the magnet (71)
) The rotational force of the stripping knoll (47) by the drive motor (76) is stronger than the adsorption force between the cover tape (17A) and the stripping reel (47) against the adsorption force.
is rotated to wind up.

Then, the square hole (
Above the suction nozzle (4), the tip (
4A) are located close to each other, even if the nap part (W) is stuck to the back side of the cover tape (17A) due to static electricity, the nap part (W) can be removed by peeling off the cover tape (17A). is the tip of the suction nozzle (4) (
4A) and remains in the square hole (16B).

In this way, the cover tape (17A) is connected to the tape (16).
When the tape is peeled off, the suction nozzle (4) descends again and its tip (4A) removes the tape (as shown in FIG. 17).
The nap part (W>) in the square hole (16B) of 16) is held by suction, and the nap part (2) is taken out by vertically rising of the suction nozzle (4), and then rotated and conveyed by the rotary disk (2). The cover tape is placed on the printed circuit board positioned on the XY table (6) and assembled.Then, the cover tape presser rod (75) is raised to cover the slack of one pitch during the next feeding. The tape (17A) is held to complete one component mounting operation.

Next, to explain the operation when installing a nap part (W) stored in another parts supply device (3), the part supply table (10) is moved to move the desired parts supply device (3). The suction nozzle 4) is moved downward. .

Then, put the tape (16) on the first. Second sprocket (
18) and (19), the component is sent out to the component removal position (ff) by the suction nozzle (4). Thereafter, operations similar to those described above are performed.

This operation is repeated to mount all the nap parts (W) onto the printed circuit board.

It should be noted that vibrations occur when the component supply device (3) mentioned above moves selectively, reaction when the cover tape holding rod (75) rises, and the friction drum (79) rotating the stripping reel (47).
Since the attraction force between the stripping reel (47) and the steel plate (74) due to the magnetic force of the magnet (71) is stronger than the reaction when the stripping reel (47) rises, the loosening of the cover tape (17A) causes the stripping reel (47> Remove the stripping reel (47) so that it will not be wound too much and that there will be no excess slack.
rotation is regulated.

Naturally, the present invention is applicable to the cover tape (17A
) is not applied only to the peel-off reel (47) that winds the nap part; for example, it may be applied to a peel-off reel that winds an adhesive tape that adheres and supports the nap part around the support tape.

In addition, in the present invention, the friction drum (79) is moved up and down to contact and separate from the stripping reel (47), thereby transmitting rotational force.
Since the release is performed, when the friction drum (79) rises after rotation, the stripping reel (47) becomes free and the cover is removed due to the reaction of the tensile force when winding the cover tape (17A). This is an example for a case where the tape (17A) was loosened, but the parts supply device (
3) Each friction drum (79) is provided, and the friction drum (79) is provided individually.
79) is stopped to finish winding the cover tape (17A), and the slip between the friction drum (79) and the peeling ring (47) due to the tension causes the cover tape (17A> It is also effective for items where loosening occurs.

(G) Effects of the Invention With the above-described configuration, it becomes easy to adjust the sliding friction resistance, and once the adjustment is made, there is no need to worry about changes over time.

[Brief explanation of drawings]

FIG. 1 is a front view of a stripping reel according to the present invention, FIGS. 2 and 4 are sectional views taken along the line AA' in FIG. 1, and FIGS. 3 and 5 are sectional views taken along the line BB' in FIG. FIG. 4 is a sectional view taken along line c-c', FIG. 6 is a plan view of an electronic component automatic mounting device to which the present invention is applied, FIG. 7 is a plan view of a tape, FIG. 8 is a front view of a component supply device, and FIG. Figures 11 to 11 are diagrams showing the reel socket plate and reel drive fitting operation, Figures 12 and 13 are front views of stripping reels with different configurations, and Figure 14 is a partial enlargement of Figure 2. 15 to 17 are diagrams showing a component suction operation, and FIG. 18 is a sectional view of a conventional stripping reel. (3)...Parts supply device, (16)...Tape,
(17A) (17B)...Cover tape, (46)
... Cover tape peeling device, (47) ... Stripping reel, (4B) (48A) (48B> ... Reel socket plate, (49) (49A) (49B) ...
・Reel socket, (53)... Reel drive, (68)... Eccentric stud, (71)...
・Magnet, (74)...Steel plate.

Claims (1)

[Claims] (1) In a stripping reel that is rotatably attached to a support section for winding the fixing tape that has been peeled off from a holding band holding a large number of nap-like electronic components, the stripping reel side or the supporting section side A sliding friction device for a stripping reel, characterized in that a magnet or magnetic material is provided on each of the stripping reels to regulate rotation of the stripping reel.