JPS61152513A - Taping device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a taping device for electronic components equipped with lead wires, such as fixed film resistors, capacitors, and the like.

[Prior art 1] Conventionally, as shown in FIG. 8, in a fixed film resistor R, etc., the leads l1R2 on both sides of the main body R1 are taped with tapes TI and T2, and after taping, the leads l1 and R2 on both sides of the main body R1 are taped with tapes T1. Feed holes t are formed at equal intervals in T2, and the wire is automatically inserted into the printed circuit board by an automatic insertion machine using these feed holes t.

In this case, if the feed hole t and the taping position of the fixed film resistor R, etc. are not set accurately, the feed pitch of the automatic insertion machine will be uneven, and the automatic insertion machine will often make mistakes in insertion into the printed circuit board.

In a conventional taping device, a large number of female holes are provided around the outer periphery of a taping wheel used for taping work, and the female holes are successively opposed to the male holes by intermittent rotation of the taping wheel. , the male punching die is advanced relative to the female punching die, and the tape knife 1. A feed hole was drilled in T2. Conventionally, in another taping device, taping is performed on a taping wheel, and while the tape is discharged from the taping wheel and reaches a transfer wheel, a male and female punching die is used to form a feed hole T. Drilling work was being carried out.

[Problems to be Solved by the Invention] However, in the former case, high precision is required in the arrangement of the female punching die, which not only makes the structure complicated and expensive;
It is difficult to adjust the timing of stopping the taping wheel and advancing and retracting the male punching die. If these timings were out of order, there were drawbacks such as damage to the male and female molds. In the latter case, tape T1. Due to the expansion and contraction of T2, etc., it is difficult to adjust the timing of the drive device for the transfer wheel and the timing of the operation of the male punching die that drills the feed hole, making it impossible to drill the feed hole accurately. There wasn't. Furthermore, since the feed hole is engaged with the positioning protrusion of the transfer wheel and used for transfer only by this engagement relationship, the feed hole may be damaged and the automatic insertion machine may cause incorrect insertion into the printed circuit board. .

Therefore, the present invention simplifies the structure, improves the precision of the taping position between the sprocket hole and the electronic component, and also allows the automatic insertion machine to smoothly insert the electronic component into the printed circuit board without damaging the sprocket hole. It is an object of the present invention to provide a taping device that can perform the following operations reliably.

[Means for Solving the Problems] Technical means of the present invention for solving the above problems include a tape having a large number of engagement grooves for engaging lead wires of electronic components on the outer periphery, and a tape. a taping wheel having a guiding surface and having a large number of positioning protrusions provided at equal intervals in the center of the tape guiding surface; a supply source for supplying a wide first tape to the tape guiding surface; a punching device that is provided between the source and the taping wheel, and that forms taping feed holes of successively smaller diameters at equal intervals in the longitudinal center of the first tape; and a second tape that is narrower in width than the first tape. a crimping roller for crimping the tape onto the first tape from above the lead wire of the electronic component engaged in the engagement groove; A punching device that forms large-diameter feed holes at equal intervals in the tape, and a transfer wheel that has a large number of positioning protrusions provided at equal intervals on its outer periphery for sequentially engaging the feed holes formed by the punching device. , and a drive device that synchronizes the transfer wheel and the taping wheel and rotates them intermittently.

[Effect] The effect of this technical means is as follows.

The first tape led out from the supply source has small-diameter taping holes sequentially bored at equal intervals in its longitudinal center by a punching device. The first tape having taping feed holes formed therein is stacked on the tape guiding surface by sequentially engaging the taping feed holes with the positioning protrusions of the taping wheel. On the other hand, the lead wire of the electronic component is engaged with the engagement groove of the taping wheel and placed on the first tape. Then, the second tape is pressed with a crimp solder, and its adhesive surface is adhered to the first tape from above the lead wire, and the tape is sequentially taped. After taping the electronic components, perforations are sequentially made in the first and second tapes using a perforation device, and these perforations are positioned on the positioning protrusions of the transfer wheel, and the transfer wheel is rotated. Accordingly, the electronic components after taping are ejected from the device.

[Example] Hereinafter, an example in which the taping apparatus of the present invention is used for taping a fixed film resistor (hereinafter simply referred to as a resistor) will be described in detail with reference to the drawings.

As shown in FIGS. 1 to 3, a bearing 3 is attached to the base plate 2 of the frame 1.
is fixed. A hollow rotating shaft 4 is placed inside this bearing 3.
is rotatably supported.

A homing wheel 5 is fixed to the outwardly projecting end of the hollow rotary shaft 4, and the homing wheel 5 is provided with a large number of chucking devices 6 on its outer periphery. Each chucking device 6 has a fixed chuck member 7 as shown in FIG.
and the movable chuck member 8, and the movable chuck member 8
is rotatably supported by a shaft 9, and a tension spring 10
The fixed chuck member 7 is biased by the resistor R between the fixed chuck member 7 and the movable chuck member 8.
The main body R1 can be grasped. Bearings 11 are supported at the base of each movable chuck member 8, and these bearings 11 are in contact with the outer peripheral surface of a cam 12 fixed on the bearing 3. This cam 12 has a peak (not shown) on its outer periphery, and when the bearing 11 rides on this peak, the movable chuck member 8 rotates to the side away from the fixed chuck member 7 against the elasticity of the tension spring 10. body R1 of resistor R
can be released. As shown in FIG. 1, a conveyor chain 13 is movably provided under the homing wheel 5, and the lead wire R2 of the resistor R is engaged with an attachment protruding from the link plate for sequential conveyance. be done. A first supply wheel 14 is provided above the conveyance cheno 13. As shown in FIG. 2, on the outer periphery of this supply wheel 14, a large number of grooves 15 for engaging the resistors R are arranged at equal intervals. It can be moved upwards by the guidance of. A second supply wheel 17 is provided above the first supply wheel 14 . A large number of grooves 18 for engaging the resistor R are arranged at equal intervals on the outer circumference of the second supply wheel 17, and the guide member 19 receives the resistor R transferred by the first supply wheel 14.
It can be moved upwards by the guidance of. The resistor R transferred by the second supply wheel 17 can be gripped by the chucking device 6 of the homing wheel 5.

Kinks are sequentially formed on the outer circumference of the homing wheel 5 toward the downstream side from the second supply wheel 17 [11
20, a folding device 21 and a folding device 1122 are provided. Then, the kink forming device 20 forms a kink R2a on the lead wire R2 as shown in FIG. Lead wire R2 can be folded down.

As shown in FIG. 3, a bearing 24 is fixed to the substrate 23 of the pedestal 1 inside the hollow rotating shaft 4 so as to be eccentric with respect to the hollow rotating shaft 4. As shown in FIG. A rotary shaft 25 is rotatably supported by this bearing 24 . A taping wheel 26 is mounted on the outwardly projecting end of the rotating shaft 25. As shown in FIGS. 2 and 3, on the outer periphery of the taping wheel 26 on the homing wheel 5 side, there are engaging protrusions 27, 28 and these engaging protrusions 27.
A set of engagement grooves 27a, 28a for engaging the lead wires on both sides of the resistor R by 28 is provided, and these multiple sets of engagement grooves 27a, 28a are provided at equal intervals, and are placed on the homing wheel 5. Lead R2 of the homed resistor R can be received.

A gear 26a is attached to the outer surface of the taping wheel 26, and a tape guiding surface 29 is provided on the outer periphery of the taping wheel 26 between the engagement protrusion 27, 28 and the gear 26a.

A large number of positioning protrusions 30 are provided at equal intervals on the outer periphery of the central portion of the tape guiding surface 29. A gear 31 is mounted on the inwardly projecting end of the hollow rotating shaft 4, a gear 32 is mounted on the inwardly projecting end of the rotating shaft 25,
These gears 31 and 32 are connected to a motor (not shown) via a power transmission mechanism (not shown) such as a self-vehicle or a barrel cam. The hollow rotary shaft 4, the homing wheel 5, the rotary shaft 25, and the taping wheel 26 are rotated intermittently by the drive of the motor. At this time, as shown in FIGS. 1 and 2, the chucking device 6 of the homing wheel 5 and the engaging grooves 27a, 28a of the taping wheel 26 are aligned in sequence on the downstream side of the tilting device 22. is set to .

On the tape guide surface 29 of the taping wheel 26, as shown in FIG.
1 is the guide O-ra 34 from the tape bobbin 33 which is the supply source.
, 35 and a presser roller 36. Behind the guide rollers 34 and 35, a brake device 37 and a perforated bag [38 for the taping feed hole ta (see FIG. 7) are provided. As can be seen in detail from FIGS. 5 and 6, a female punching die 40 is attached to the supporting member 39 attached to the pedestal 1 below the first tape T1. A mounting plate 42 is fixed to a bracket 41 attached to the pedestal 1 through long holes 43 and screws 44 so that its position can be adjusted, and the base of an arm 45 is fixed to this mounting plate 42. A holder 46 is supported at the tip of the arm 45 so as to be movable up and down via a bearing 47, and a male punching die 48 is attached to the downwardly projecting end of the holder 46 above the first tape T1. A shaft 49 is rotatably supported in the middle of the holder 46 via a bearing 50, and one end of a lever 51 is attached to the shaft 49.

A shaft 52 is attached to the other end of the lever 51, and this shaft 52
The cam follower supported above is a cam (both not shown)
is connected to. Therefore, due to the rotation of the cam, the lever 51
is intermittently swung up and down, thereby moving the holder 46 and the male punching die 48 up and down, and using the female punching die 40 to punch a taping feed hole ta in the longitudinal direction of the center of the tape T1. I can do it.

As shown in FIGS. 1 and 2, a chucking device 6 for the homing wheel 5 and a taping wheel 26
A pressure roller 53 facing the tape guide surface 29 of the taping wheel 26 is provided at a point where the engagement grooves 27a and 28a coincide. The pressure roller 53 is rotatably supported by a shaft 55 on a support member 54 rotatably supported by the pedestal 1, and is biased toward the tape guide surface 29 by the elasticity of a compression spring 56. This crimping row 5
53 is made of heat-resistant rubber (silicon-based,
A heater (not shown) is wound therein, and a number of approximately semicircular grooves 57 on the side surface into which the lead wire R2 of the resistor R can be fitted are formed at equal intervals on the outer periphery. A gear (not shown) mounted on a shaft 55 supporting this pressure roller 53 is meshed with a gear 26a (see FIG. 3) on the taping wheel 26,
3 and the taping wheel 26 are rotated at a constant circumferential speed. A second tape T2, which is pulled out from a tape bobbin (not shown) which is a supply source and whose width is narrower than the first tape T1, has its adhesive surface connected to the first tape T1 by a pressure roller 53 and a resistor R. is pressed from above the lead wire R2. At this time, the tape T2 is attached to the engaging grooves 27a, 28.
a and the positioning protrusion 30, and the crimping roller 53 57 can be fitted to the upper half of the lead wire R2. A guide roller 5 is provided below the crimping row 553.
8 is provided, and the lead wire R2 of the resistor R is taped and discharged by the pressure of the pressure roller 53, and the first
and second tapes T1 and T2 are led out in the horizontal direction. A feeding flower bud hole device 67 is provided in front of the guide roller 58. This punching device 67 is used to open the taping feed hole ta.
The perforation device 38 is constructed in the same manner as the perforation device 38, and can sequentially perforate feed holes tb (see FIG. 7) at equal intervals in the longitudinal center portions of the first and second tapes T1 and T2. Therefore, the female punching die 40 and the male punching die 48 of the sending flower bud hole device 67 are formed to have a larger diameter than the female punching die 40 and the male punching die 48 of the taping flower bud hole device 38. A transport wheel 59 is rotatably supported by a rotating shaft 60 in front of the sending flower bud hole device 67 . This transport wheel 59
is formed to have the same diameter as the taping wheel 26, and the same number of positioning projections 61 as the positioning projections 30 and larger diameter than the positioning projections 30 are provided at equal intervals at the center of the outer periphery. Sprockets (or timing wheels) 62 and 63 are mounted on the rotation shaft 60 of the transfer wheel 59 and on the rotation shaft 25 of the taping wheel 26, respectively, and these sprockets (or timing wheels) 62 and 63 are connected to a chino ( or a timing belt) 64 is installed. These sprocket (or timing wheel) 63, chain (or timing belt) 64 and sprocket (
The transfer wheel 59 can be rotated at the same circumferential speed as the taping wheel 26 via the tape T1.
It can sequentially engage the feed hole tb at T2.

A tape pressing roller 65 is provided above the transfer wheel 59, and this tape pressing roller 65 holds the tape T1.
．． T2 can be prevented from coming off from the transfer wheel 59. Further, a discharge roller 66 which also serves as a tape holder is provided on the side of the transfer wheel 59, and the tape TI is discharged by the transfer wheel 59 and tapes the lead wire R2 of the resistor R.

T2 is led out by the discharge row 566 and wound up.

Next, the operation of the above embodiment will be explained. The resistor R transported by the transport cheno 13 shown in FIG. 1 passes through the first and second supply wheels 14 and 17, and is then gripped by the chucking device 6 of the homing wheel 5 shown in FIG. 2. .

As the homing wheel 5 rotates intermittently, the lead wire R of the resistor R held by the chucking device 6
2, the kink forming device 20 forms a kink R2 as shown in FIG. The resistor R is tilted so that φ is flat with respect to the outer periphery of the homing wheel 5.

On the other hand, the first tape T drawn out from the tape bobbin 33
1 has taping feed holes ta sequentially bored at equal intervals in its longitudinal center by a punching device 38. The first tape T1 with the taping feed hole [a] is guided by the guide O
- The taping feed hole [a] is sequentially engaged with the positioning protrusion 30 of the taping wheel 26 through the roller 35 and presser row 536, so that it is overlapped with the tape guiding surface 29. After the homing work has been completed, the resistor R has its lead wire R2 in the engagement groove 2 of the taping wheel 26.
7a and 28a, and rides on the first tape T1.

The second tape T2 pulled out from the tape bobbin is pressed so that its adhesion surface is connected to the first tape from above the lead wire R2 by the crimping circle 53.
are pressed and adhered to the tape T1, and taped in sequence. Bond tape T1 to which resistor R is taped. T2
is guided by a guide roller 58 and sent flower bud hole device 67
As shown in FIG. 2, the tape T1. Sequentially drill holes tb at T2. The first and second holes are provided with a feed hole tb.
Tape T1. T2 reaches the transfer wheel 59, and the tape T1 is attached to the positioning protrusion 61 of the transfer wheel 59.
The feed hole ta is positioned, and this transfer wheel 59
is discharged from the device as it rotates.

Incidentally, puncture needles may be provided protruding at a plurality of locations on the outer circumference of the transfer wheel 59, and the puncture needles may be punctured into the first tape T1 to prevent it from slipping.
It is desirable to set the thickness of the tape T to be lower than the thickness of 1.

Further, similar to the taping wheel 26, a large number of sets of engagement grooves for engaging the lead wires R2 on both sides of the resistor R may be provided at equal intervals on the outer periphery of the transfer wheel 59. It is possible to maintain the relative positional accuracy between the main body R1 and the feed hole [b, prevent sudden misalignment accidents, and perform early detection.

As a means of early detection, for example, when the lead wire R2 is not engaged with the engagement groove, the resistor main body R1 protrudes outward; this can be detected by a sensor, which is the present invention. In addition, various design changes can be made without departing from the basic technical idea.

[Effects of the Invention] As is clear from the above description, according to the present invention, a small diameter taping feed hole is formed in the longitudinal direction of the center of the wide first tape, and the small diameter taping feed hole is formed in the longitudinal direction of the center of the wide first tape. Since the taping position of the electronic component with lead wires and the subsequent drilling position of the large-diameter sprocket hole formed on the outer periphery of the taping hole are determined based on the taping position of the electronic component with lead wires, On the other hand, the feed hole can be drilled accurately. In addition, the feed hole is formed with a large diameter after taping on the outer periphery of the taping feed hole, and the transfer wheel equipped with a protrusion for positioning the feed hole is rotated intermittently in synchronization with the taping wheel. Automatic insertion into the printed circuit board can be performed smoothly and reliably without damaging the feed hole. Furthermore, since it is only necessary to add a punching device for a small-diameter taping feed hole, there are advantages such as a simple structure.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view showing one embodiment of the taping device of the present invention, Fig. 2 is an enlarged view of its main parts, and Fig. 3 is its m-
■A sectional view taken in the direction of arrows, FIG. 4 is a partially enlarged view of the homing wheel used in the present invention, FIG. 5 is a partially cutaway front view of the punching device used in the present invention, and FIG. 6 is its vt-vt 7 is a plan view showing a state in which a resistor is taped with the taping device of the present invention, and FIG. 8 is a plan view showing a state in which a resistor is taped with a conventional taping device. 5... Wheel for homing, 6... Chucking device, 12... Cam, 13... Cheno for conveyance, 14
．． 15... Supply wheel, 20... Kink forming device, 21... Bending device, 22... Tipping device, 26
... Taping wheel, 27a, 28a... Engagement groove, 29... Tape guiding surface, 30... Positioning protrusion, 37... Brake device, 38... Taping feed hole punching device , 40...Female die for drilling, 48...
- Male die for punching, 53... Roller for pressure, 59... Wheel for transfer, 61... Protrusion for positioning, 67...
Feed hole punching device, R...Resistor, R1...Main body, R
2... Lead wire, T1... First tape, T2...
・Second tape, ta...taping feed hole tb・
...Sprocket hole. 5 Homin7')'11 Wheel)n 6t4*X
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Claims (1)

[Claims] A taping wheel that has a large number of engagement grooves for engaging lead wires of electronic components on its outer periphery, a tape guiding surface, and a large number of positioning protrusions provided at equal intervals in the center of the tape guiding surface. , a supply source for supplying a wide first tape to the tape guiding surface, and a taping feed provided between the supply source and the taping wheel, the tapering feed having a smaller diameter in the longitudinal center of the first tape. a punching device that forms holes at equal intervals; and a pressure roller that presses a second tape narrower than the first tape onto the first tape from above the lead wire of the electronic component engaged in the engagement groove. and a punching device that forms large-diameter feed holes at equal intervals in the first and second tapes crimped by the pressure roller and the taping wheel, and the feed holes formed by the punching device are sequentially engaged. A taping device comprising: a transfer wheel having a large number of positioning protrusions provided at equal intervals on its outer periphery; and a drive device that synchronizes and rotates the transfer wheel and the taping wheel intermittently. .