JPS6258965B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a taping device for continuously wrapping articles with tape.

As is well known, among electronic components, resistors, capacitors, diodes, etc. have long, flexible lead wires at both ends of the component. Therefore, the lead easily bends when subjected to external force.

Therefore, as shown in FIG.
The tips of the leads 2 protruding from both ends of the package are sandwiched between a pair of paper tapes 3 from above and below, respectively. At this time, an adhesive is adhered to the corresponding surface of at least one of the pair of paper tapes to be pasted, and by overlapping the paper tapes with the lead sandwiched between them, they can be easily pasted and packed. Furthermore, a taping device having the structure shown in FIG. 2 has been developed for the purpose of automating this taping work.

This taping device includes a chute 5 for feeding electronic components 4 one by one, and a chute 5 for feeding electronic components 4 one by one.
A transfer conveyor 6 having a straightening mechanism (not shown) for straightening each lead of each electronic component 4 during the transfer, if necessary.
A rotatable sub-index 8 is disposed concentrically at one end of the transfer conveyor 6 and has receiving pins 7 protruding at regular intervals from its circumferential surface.
and arranged on the side of this sub-index 8,
A rotatable index 9 is provided, which is supported by the receiving pin 7 of the sub-index 8 and which picks up the electronic component 4 that is moving down and brings it into contact with the peripheral surface. Further, the first tapes 11 unwound from the two first unwinding reels 10 arranged in parallel are wound in parallel along a part of the circumferential surface of the index 9, and their respective tips are kept at a constant interval from each other. It is designed so that it can be wound up on a take-up reel 12 at the same time. Also, this first tape 1
Adhesive is applied to the outer surface of 1. Therefore, when the index 9 picks up the electronic component 4 on the receiving pin 7 of the sub-index 8, the leads at both ends of the electronic component 4 come into contact with the outer surface of the first tape. Therefore, the electronic component 4 moves as the index 9 rotates and the first tape 11 rotates upward. Further, the two second tapes 14 unwound from the two second unwinding reels 13 disposed above the index 9 are guided by a guide roller 15 and passed between the guide roller 15 and the index 9. It is adapted to be wound up on the take-up reel 12 through the winding. Further, in the guide roller 15, each of the second tapes 14 is guided so as to overlap each of the first tapes 11 below, and is attached to the first tape 11 via the adhesive on the outer surface of the first tape 11. Then, as shown in FIG.
The second tapes 11 and 14 are used to attach and sandwich the tape, and the tape is wound around the take-up reel 12. Although the details are not shown, the receiving pin 7 on the circumferential surface of the sub-index 8 has a structure in which two protrusions are lined up on the left and right along the circumferential direction, and the receiving pin 7 is attached to the feed pawl 1 of the transfer conveyor 6.
The electronic component 4 sent in step 6 is hooked onto the left protrusion of the receiving pin 7, pushed upward and rotated, and when rotating downward from the top end, the right side of the receiving pin 7 is moved. The protrusions are designed to receive electronic components. Therefore, at the top of the sub-index 9, the receiving pin 7 swings with a cam etc.
The left protrusion of the receiving pin 7 is recessed from the upper surface of the sub-index 9, and the right protrusion protrudes.

According to such a taping device, electronic components can be automatically taped. Furthermore, since the electronic parts supported by the receiving pins are scooped out when switching from sub-index to index, there are practical benefits such as reliable taping.

However, this taping device has a limited taping ability. In other words, in this taping device, the electronic components move while being placed on the rotating sub-index (under their own weight), so if the taping capacity is improved, the rotation speed of the sub-index will increase, and centrifugal force will cause the electronic components to move. It protrudes outward from the sub-index surface, making it impossible to tape. For this reason, the taping device has a taping capacity of only 90 to 180 pieces per minute.

Therefore, an object of the present invention is to provide a taping device with excellent taping ability.

The gist of the present invention to achieve such an object is to provide a supply mechanism that moves parts horizontally and supplies the parts to a gear, a gear that moves the parts along an arc, and a supply mechanism that is formed on the side surface of the gear. The present invention provides a taping device characterized by having a tape guide and a falling-off prevention plate that prevents parts from falling off from the gear.

The present invention will be explained in detail below with reference to Examples.

3 to 5 show a first embodiment of the taping device of the present invention. FIG. 3 shows the outline thereof, and shows a supply mechanism 18 that aligns and transfers electronic components 17 in a plane direction. As shown in FIGS. 4 and 5, this feeding mechanism 18 consists of feeding pawls 23 fixed to each chain 22 of a chain conveyor 21, which are inserted into two parallel grooves 20 of an elongated table 19 that supports electronic components 17. moves, and the electronic components 17 are sequentially aligned and transferred to the right side by the feed claws 23. Further, a housing groove 24 is provided in the center of the table 19 along the transfer direction of the electronic component 17.
The main body 25 of No. 7 is inserted and moved. Therefore, the feed claws 23 of the two-line chain conveyor 21 are configured to respectively hook the lead 26 portions protruding from the main body 25 of the electronic component 17 at both ends and transport the electronic component 17. Further, the supply mechanism 18
A chute 27 that sequentially supplies electronic components 17 one by one onto the supply mechanism 18 is disposed above the left end.

On the other hand, on the upper surface of the right end of the supply mechanism 18, a fifth
As shown in the figure, a pair of identical gears 28 are arranged, each with a peripheral surface facing each lead 26 of the electronic component 17. Further, these gears 28 are each fixed to a rotating shaft 31 connected to a drive shaft 30 of a pulse motor 29, and the tooth spaces 32 of the gears 28 are assembled so as to correspond to each other. Further, a disk-shaped tape guide 33 is provided on the outside of the gear 28. This tape guide 33 is formed to have the same shape as the root circle of the gear 28, for example, the fifth
As shown in the figure, it is formed integrally with the gear 28 (a tape guide may be made separately and fixed to the side surface of the gear). (The integrated one is called an index rotor.) And this tape guide 33
As shown in FIG. 3, the first tape 36 unrolled from the first unwinding reel 35 is hung over a portion (the right half circumference from the bottom) of the tape guide surface 34 on the circumferential surface of the tape guide surface 34 . Further, the unraveled tip of the first tape 36 is wound around a take-up reel 37 disposed on the upper left side. Moreover, above the tape guide 33,
As shown in FIG. 5, a roller mechanism 39 having a rotatable roller 38 is provided. Further, on the first tape 36 passing between the roller 38 surface and the tape guide surface 34, a second tape is unwound from a second unwinding reel 40 disposed on the upper right side.
The tapes 41 are designed to pass overlapping each other. Further, an adhesive is applied to the outer surface of the first tape 36 in advance. Therefore, roller 3
The first tape 36 and the second tape 41 that pass between the tape guide 33 and the tape guide 33 stick to each other by coming into close contact with each other, and are wound together on the take-up reel 37 as one unit. ing. A spring 42 acts on the roller mechanism 39 to constantly press the roller 38 against the tape guide surface 34 in order to bring the first and second tapes into close contact with each other.

On the other hand, a component guide 43 is attached to the rotating shaft 31 between the pair of gears 28 via a radial bearing 44. As shown in FIG. 4, this component guide 43 is fixed to the body 45 of the taping device on the left side, and has a substantially semicircular plate shape on the right side. As shown in FIG. 4, the center of this semicircular plate-shaped curved surface is eccentrically e from the center of the rotating shaft 31 to the lower right. It approaches the root circle as it goes upward in the left-handed winding direction, intersects with the root circle at position A in the upper right corner of the figure, and at the position where the upper roller 38 is located, the tooth root From the circle to the center, it appears to be sinking further. Also, a guide groove 47 is provided along the center of the curved surface 46 of this component guide 43.
is provided. This guide groove 47 is formed deeply so that when the lead 26 of the electronic component 17 is in contact with the curved surface 46 of the component guide 43, the main body 25 does not come into contact with the inner wall of the guide groove. In order to ensure that the electronic components 17 that are aligned and transferred by the mechanism 18 enter the guide groove 47 even if there are variations in their axial positions, the guide groove 47 is formed to have a wide width, and gradually narrows toward the top. Further, in the upper region to be taped, the groove width is slightly larger than the length of the main body 25 by several mm. Therefore, the taped electronic component does not shift from side to side in its axial direction, and is accurately taped.

In addition, a table 19 corresponding to the lower part of the gear 28
A guide plate 48 is fixed on top. This guide plate 48 moves the lead 26 portion of the electronic component 17 transferred by the feed pawl 23 from below to above using the slope, and
It's starting to fall into 2. Furthermore, the guide plate 48 also has the effect of not falling out of the tooth groove 32 even after the gear is rotated once it has entered the tooth groove 32. Further, a component drop-off prevention plate 49 is connected to the guide plate 48 and extends at least along the curved surface 46 up to the point A to prevent the electronic component 17 housed in the pair of tooth grooves 32 from falling off. ing. Further, the tip of the component falling-off prevention plate 49 is adapted to press the resiliently acting lead 26 against the adhesive surface of the first tape.

Furthermore, a detection mechanism 50 that detects the presence or absence of electronic components transferred by the supply mechanism 18,
It is provided in the upper and lower surface direction of the table 19. The detection mechanism 50 includes a light source 51 and a light receiver 52, and detects the presence or absence of an object to be transported depending on whether or not the light flux from the light source 51 to the light receiver 52 is temporarily blocked.
And if the transported items are definitely sent,
A rotation command of the gear 28 at the time when the transferred object is guided to the tooth groove 32 by the guide plate 48 is transmitted to the pulse motor 29, and when the transferred object is not detected, the pulse motor 29 is not operated and the Only the mechanism 18 is moved continuously.

Next, the taping work will be explained. First, the electronic components 17 are sequentially sent from the chute 27.
is continuously moved while sliding on the table 19 by the feed pawl 23 of the chain conveyor 21. and,
The electronic component 17 is guided by the guide plate 48 into one tooth groove 32 of the index rotor. At this time, the pulse motor 29 rotates by a predetermined angle (step) to rotate the index rotor by one pitch. Further, whether or not the pulse motor 29 rotates is determined by a signal from the detection mechanism 50 depending on the presence or absence of an object to be transferred. Therefore, the feed claw 23
When the electronic component 17 is successively moved across the guide plate 48, if the electronic component 17 is hooked to the feed claw 23, the guide plate 48 automatically moves the electronic component 17 diagonally upward along the forward direction. , it enters between the upper edge of the guide plate 48 and the tooth groove 32 by one step movement (stepping) of the gear of the index rotor. However, in an empty state in which the electronic component 17 is not hooked onto the feed pawl 23, even if the feed pawl 23 moves across the guide plate 48, the index rotor does not rotate.

Further, at the lower part of the index rotor, the electronic component 17 contacts the curved surface of the component guide 43 via the lead 26, and therefore does not contact the adhesive surface of the first tape 36. However, as the electronic component 17 moves counterclockwise, it gradually approaches the adhesive surface of the first tape 36, and the lead 26 is attached to the first tape 36 at point A in FIG.
It comes into contact with the adhesive surface and adheres to it. Further, until this contact occurs, the position of the main body 25 of the electronic component 17 is kept constant (for example, the fifth
center position) as shown in the figure. Further, near point A where the lead 26 contacts the first tape 36,
Since the tip of the component fall prevention plate 49 elastically presses the lead 26 against the surface of the first tape 36, the lead 26 is reliably brought into close contact with the first tape 36. Then, the electronic component moved upward in this state is taped with the first and second tapes 36 and 41 as a result of the second tape 41 being pressed against the lead portion from above by the roller 38 of the roller mechanism 39. They are sequentially wound around a take-up reel 37.

According to such an embodiment, since the electronic components on the supply mechanism 18 are moved horizontally, the electronic components are stable even if the moving speed is increased, and even if the electronic components are moved along the circumferential direction, the electronic components are moved horizontally. Due to the adhesive strength of the fall prevention plate and adhesive, it can be used like a conventional taping device.
Since it does not fly out due to centrifugal force, the taping speed can be increased. For example, as a result of an experiment, the pitch of the feeding claw 23 of the feeding mechanism 18 was determined.
12.5mm, and in this state the feed claw 23 is 360mm/sec.
30 electronic components per second (1800 electronic components per minute) are transferred at a forward and backward speed, and the index rotor is rotated by a pulse motor via a gear train (stepping at 1 pitch of 0.025 sec). It was also confirmed that taping could be performed.

Furthermore, according to this embodiment, if there is no object to be transferred, the index rotor is structured not to rotate, so the taping operation is temporarily automatically stopped. There is no so-called missing tooth defect, which occurs when electronic parts are not taped. For this reason,
The packaging has a good appearance and can be used as a product.

In addition, in this embodiment, even if the supply condition of the electronic component in the axial direction is poor, the position is automatically corrected using the guide groove before taping, so that it can be partially removed from one side of the tape. Taping defects such as lead tips protruding do not occur.

In this embodiment, for example, if the adhesive strength of the first tape is weak and when the index rotor is rotated at high speed, the electronic components once adhered to the first tape surface will fly out due to centrifugal force.
The component drop-off prevention plate may be further extended and guided by a roller mechanism to the taping position.

Further, FIGS. 6 and 7 show other embodiments of the present invention. This second embodiment is intended for magnetic articles. In this case, electronic components such as diodes and resistors are also targeted because their leads are made of ferromagnetic material. This taping device is different from the first embodiment only in the component fall prevention mechanism, so the same names and designations are used for the same structures and mechanisms as in the first embodiment, and the same designation numbers are used. Further, explanations of the structure and mechanism will be omitted. In this taping device, the parts guide 4
As shown in FIG. 7, a permanent magnet 53 is provided inside the curved surface 46 of the component guide 43 along the circumference, as shown in FIG. The guide plate 48 is provided above the table 19 of the supply mechanism 18 and guides the electronic component 17 on the table 19 into the tooth groove 32 of the index rotor above, and has a gap sufficient for at least the lead 26 to pass therethrough. The shielding plate 54 is provided in such a state. This shielding plate 54
prevents the electronic components 17 on a table 19 other than a predetermined one from being attracted by the permanent magnet 53, and the shielding plate 5
4 and the table 19 by means of a feed claw 23. Note that this shielding plate 54 can, for example, connect a permanent magnet to the component guide 43.
This is effective when it is provided inside the tape guide surface 34 instead of the curved surface 46. Further, instead of providing the shielding plate 54, the lower limit of the permanent magnet 53 provided on the curved surface 46 of the component guide 43 is set by the guide plate 48 and the tooth groove 32 of the index rotor 28, so that the electronic component 1
If the guide plate 7 is placed in a position where it is securely held, the guide plate 4
The electronic components 17 that do not reach the tip of the table 19 will not be lifted off the top surface of the table 19 due to magnetic force.

According to this embodiment, the electronic components 17 on the table 19 are guided by the guide plate 48 to the tooth grooves 32 of the index rotor, and are attracted to the index rotor or the curved surface 46 of the component guide 43 by magnets. It is carried to the taping position (the position where the roller mechanism 39 is located) in a state where the roller mechanism 39 is located. As a result,
Even if the index rotor rotates faster, it does not easily fall off from the tooth groove 32, so it is possible to improve the taping speed.

Furthermore, as another embodiment of the present invention, the sub-index and index of the conventional taping apparatus described above may be provided with a component drop-off prevention mechanism.

Furthermore, the taping device of the present invention does not necessarily have to be an electronic component.

As described above, according to the taping apparatus of the present invention, electronic components and other components can be taped at high speed and accurately, so that the efficiency of the taping work can be improved.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an electronic component whose lead ends are packed with paper tape, Fig. 2 is an explanatory diagram showing an outline of a conventional taping device, and Figs. 3 to 5 are a first embodiment of the taping device of the present invention. FIG. 2 is a diagram illustrating an example,
Fig. 3 is a schematic explanatory diagram, Fig. 4 is a partially enlarged view showing the taping mechanism, Fig. 5 is a cross-sectional view taken along the - line in Fig. 4, and Figs. 6 and 7. FIG. 6 is a partially enlarged view showing the taping mechanism, and FIG. 7 is a sectional view taken along the line - in FIG. 6. It is. 1... Electronic component body, 2... Lead, 3... Paper tape, 4... Electronic component, 5... Shoot, 6...
...Transfer conveyor, 7...Receiving pin, 8...Sub index, 9...Index, 10...First
Unraveling reel, 11...1st tape, 12...
Take-up reel, 13...second unwinding reel,
14...Second tape, 15...Guide roller, 1
6... Feed claw, 17... Electronic component, 18... Supply mechanism, 19... Table, 20... Groove, 21...
Chain conveyor, 22...Chain, 23...Feed claw, 24...Accommodating groove, 25...Main body, 26...Lead, 27...Chute, 28...Gear, 29...
...Pulse motor, 30... Drive shaft, 31... Rotating shaft, 32... Tooth groove, 33... Tape guide, 34
... Tape guide surface, 35 ... First unwinding reel, 36 ... First tape, 37 ... Take-up reel, 38 ... Roller, 39 ... Roller mechanism, 40
...Second release reel, 41...Second tape,
42... Spring, 43... Parts guide, 44... Radial bearing, 45... Body, 46... Curved surface, 47... Guide groove, 48... Guide plate, 49
...Parts fall prevention plate, 50...Detection mechanism, 51...
...Light source, 52... Light receiver, 53... Permanent magnet, 5
4...Blocking plate, 55...Gap.

Claims (1)

[Scope of Claims] 1. A supply mechanism that moves the parts in the horizontal direction and supplies the parts to the gear, a gear that moves the parts along an arc, a tape guide formed on the side surface of the gear, and a supply mechanism that moves the parts in a horizontal direction and supplies the parts to the gear. A taping device having a component guide for guiding and a drop-off prevention plate for preventing components from falling off from a gear, the component guide comprising:
A taping device characterized in that the part is guided by a groove formed so that the width thereof gradually becomes narrower in accordance with the moving direction of the part. 2. The taping device according to claim 1, wherein the tape guide is formed integrally with the gear. 3. The taping device according to claim 1, wherein the supply mechanism supplies the component to the tooth groove of the gear.