JPS63178592A - Electronic parts feeder - 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 Field of Industrial Application The present invention is applied to an electronic component automatic mounting device that automatically mounts chip-shaped electronic components onto a circuit board, and is an electronic component supply device that supplies chip-shaped electronic components to a mounting head. It is related to.

BACKGROUND OF THE INVENTION Conventionally, as shown in FIG. 2, many chip-type electronic components have been manufactured using a carrier tape 1 having feeding holes 19 at equal intervals at the edges and housing recesses 1b at equal intervals in the center. 1
Chip-type electronic components 2 are stored at equal intervals in b, sealed with cover tape 3 and wound around a storage reel 4, which is supplied to the user in packaging, and is mounted on a circuit board by an automatic electronic component mounting device. Ta.

In recent years, we have entered the era of miniaturization, and various electronic components have been made into chips. Therefore, dedicated electronic component feeding devices have been created according to the width of the taped components and the storage pitch of the chip-shaped electronic components 2. Became.

The conventional electronic component supply apparatus as described above will be described below with reference to the drawings.

FIG. 3 shows a side view of a conventional electronic component supply device. Further, FIG. 4 is a detailed view of the arm portion shown in FIG. 3, which is a mechanism for intermittently feeding the taped parts. (hereinafter referred to as a parts cassette) In FIGS. 3 and 4, 5 is a ratchet, 6 is a feeding pawl that is attached coaxially with the ratchet 6 and has bottle-shaped protrusions at equal intervals on its outer periphery, 7 is a ratchet pawl, 8 is a ratchet pawl drive lever to which the ratchet pawl 7 is attached; 9
10 is a swingable lever, 11 is a link that transmits the movement of the lever 10 to the ratchet 6, 12 is a carrier tape,
Reference numeral 13 denotes a cover tape, and 14 denotes a tape presser that presses the vicinity of the conveyance hole (11L in FIG. 2) of the carrier tape 12 to prevent the feed claw 6 from slipping out of the conveyance hole. Further, the tape presser 14 has a sleeve 14a from which the cover tape 13 is peeled off.

15 is a torsion coil spring for pressurizing the tape presser 14 in a certain direction; 16 is a tension spring; 17 is a storage reel;
8 is a drive source that rotates the camshaft 19 of the automatic electronic component mounting device; 19 is a camshaft driven by the drive source 18 and rotates only once per cycle; 2o is a cam attached to the camshaft 19; 21 is a cam 20 Lever 1 is swung by
22 is a cam follower attached to the lever 21 and in contact with the cam 19; 23 is a tension spring for pressing the lever 21 against the cam 19; 24 is a fulcrum shaft of the lever 21; 25 is a fulcrum shaft 24 A bracket 26 supporting the lever 21 is a cam follower attached to the lever 21 to contact the lever 1o and pressurize it.

The operation of the electronic component supply apparatus configured as described above will be described below.

First, the cam 2o is rotated by the drive source 18 that rotates the cam shaft 19 of the automatic electronic component mounting device, and the cam follower 22
When the lever 21 is swung in the H direction by applying pressure, the lever 10 is pressurized and swung in the H direction. lever 10
When the lever swings in the H direction, the ratchet pawl drive lever 8 swings via the link 11, and the ratchet pawl 7 rotates by a predetermined pitch. At this time, the ratchet 6 and the feed pawl 6 fixed thereto maintain their fixed positions because their positions are determined by the anti-reverse lever 9. Therefore, the carrier tape 12, whose position is determined by the feed claw 6, also maintains a fixed position. At this time, the suction nozzle of the mounting head descends in conjunction with the movement of the camshaft 19 to suction the chip-shaped electronic component.

Next, the lever 21 swings in the direction along the curve of the cam 19, and when the force pressing the lever 1o in the H direction disappears, the lever 10 is pulled back in the X direction by the tension spring 16. This movement is transmitted via the link 11 to the ratchet pawl drive lever 8.
When the ratchet pawl drive lever 8 is pulled back to its original position, the ratchet pawl 7 rotates the ratchet 6 by a predetermined pitch. At this time, the feed pawl 6 fixed to the ratchet 5 also rotates by the same pitch to feed the carrier tape 12 by the same pitch.

Problems to be Solved by the Invention However, with the above configuration, the pitch at which the taped parts can be conveyed per cycle is fixed, and a dedicated parts cassette is required depending on the pitch at which the chip-shaped electronic components of the taped parts are stored. Become. Therefore, users of automatic electronic component mounting apparatuses have the disadvantage that unless they always have the dedicated parts cassettes in stock, they cannot cope with changing circuit boards to be produced, which incurs extra costs. Furthermore, due to the structure and space of the device, there is a limit to the pitch at which the electronic component supply device can transport taping components, and it is difficult to transport taping components containing chip-shaped electronic components at a pitch greater than that. It was not possible to supply the mounting head.

In view of the above-mentioned drawbacks, the present invention makes it possible to supply chip-shaped electronic components to a mounting head by transporting taped parts with different storage pitches of chip-shaped electronic components in the same parts cassette. The present invention provides an electronic component supply device that is capable of supplying to a mounting head even taped parts with a large storage pitch for chip-shaped electronic components, which could not be supplied by the electronic component supply device of 2005.

Means for Solving the Problems In order to achieve this object, the electronic component feeding device of the present invention includes a feeding mechanism that can intermittently feed chip-shaped electronic components in a part of the frame body, and a feeding mechanism that drives the feeding mechanism to feed the taped components. The structure includes a plurality of drive sources capable of intermittent feeding at various pitches.

Function: With this configuration, the taped parts can be transported in several batches by combining the drive sources used, so that even carrier tapes with large storage pitches, which could not be transported conventionally, can be transported. Furthermore, even if the storage pitch of chip-shaped electronic components changes, they can be transported by changing the combination of drive sources used, so if the width of the carrier tape is the same, the parts can be transported using the same parts cassette.

EXAMPLE An example of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of an electronic component supply device according to an embodiment of the present invention. In Figure 1, 5 is a ratchet, 6
7 is a ratchet pawl, 8 is a ratchet pawl drive lever to which ratchet pawl 7 is attached, and 9 is for preventing reverse rotation of ratchet 6. 1o is a swingable lever, 11 is a link that transmits the movement of the lever 11 to the ratchet 5, 12 is a carrier tape, 13 is a cover tape, 14 is a conveyance hole (second It is a tape presser that presses the vicinity of 11L) in the figure to prevent the feed claw 6 from slipping out of the conveyance hole, and a sleeve 141L is provided to peel off the cover tape 13. 16 is a torsion coil spring for pressurizing the tape presser 14 in a certain direction; 16 is a tension spring; 17 is a storage reel; 18 is a drive source that rotates the camshaft of the automatic electronic component mounting device; and 19 is driven by the drive source 18. , a camshaft that rotates only once per cycle, 20 a cam attached to the camshaft 19, 21 a lever swung by the cam 2o, 22 a cam follower attached to the lever 21 and in contact with the cam 2o, 23 is cam follower 22
24 is a fulcrum shaft of the lever 21, 26 is a bracket that supports the fulcrum shaft 24, 26 is a cam follower, and 27 is a swing of the lever 21 that moves along the cam curve of the cam 2o. A lever 31 is attached to the drive source 30, which is pressurized through the cam follower 29 and the block 28, and is swung by a drive source 3o that can be driven independently of the camshaft of the automatic electronic component mounting device. A cam is attached and stops at the valley of the cam curve when driving the drive source 18, 32 is a cam follower attached to the lever 2T, and 33 is a tension spring for connecting the lever 21 and the lever 27.

The operation of the electronic component supply apparatus, which is an embodiment of the present invention configured as described above, will be described below.

The movement of the parts cassette is the same as in the conventional example, so it will be omitted.

The pitch for conveying the taped parts is set by the position where the link 11 is connected to the lever 1o of the parts cassette, but the minimum pitch for storing chip-shaped electronic parts is determined by the standard for each width of the taped parts. When driving the camshaft 19 of the electronic component automatic mounting device, settings are made so that the taped components can be conveyed by the minimum pitch for each of the six width component cassettes.

First, when the storage pitch of the chip-shaped electronic components is the above-mentioned minimum pitch, the drive source 18 that rotates the camshaft 19 of the electronic component automatic mounting device is driven, and when the cam 20 rotates, the lever 21 moves the cam 2o. The cam follower 29, which swings along the cam curve and is attached to the lever 21, moves toward the block 2.
B is pressurized to swing the lever 27, and the cam follower 26 attached to the lever 27 presses the lever 1o to swing the lever 10, thereby transporting the taped parts by the minimum pitch. Since the storage pitch of the chip-shaped electronic components of the taped component matches the conveyance pitch of the parts cassette, the chip-shaped electronic components can be supplied one after another. Incidentally, at this time, since the cam 31 contacts the cam follower 32 at the valley of the cam curve, movement of the lever 27 cannot be prevented.

Next, a description will be given of the movement when the chip-shaped electronic components and the taped components stored therein are transported at a pitch greater than that which can be transported by the above-mentioned drive source 1B. In this embodiment, the pitch at which the drive source 30 can transport the taped components is set to the smallest pitch among all the storage pitches for chip-shaped electronic components defined by the standards for taped components.

First, the drive source 18 is stopped (at this time, the cam 20 attached to the camshaft 19 is in contact with the cam follower 22 at the peak of the cam curve). By conveying several times using the source 30, any pinched chip-shaped electronic component can be conveyed to the supply position. When the chip type electronic component is transported to the supply position, the drive source 30
(at this time, the cam 31 is in contact with the cam follower 32 at the valley of the cam curve), the drive source 18 is driven to rotate the cam shaft 19 of the automatic electronic component mounting device, and the cam shaft 1
The chip-shaped electronic component is sucked and conveyed by the suction nozzle of the mounting head driven by the rotation of 9.

When the lever 10 is then returned in the X direction, the taping part is fed by a predetermined pitch. Since the storage pitch of the chip-shaped electronic components is large, the next chip-shaped electronic component is not conveyed to the supply position in this movement, but as mentioned above, by conveying the missing pitch using the driving source 30, it is possible to continuously chip-type electronic components.

In this embodiment, there are two drive sources, but by increasing the number of drive sources, it is possible to feed the taped parts intermittently at various pitches, and by using them in combination, the number of times of transport can be reduced by helicopter, and chip-type electronic parts can be transported more efficiently. Can be well supplied.

Effects of the Invention As described above, the present invention has a mechanism that can feed taping parts intermittently, and a plurality of drive sources that can drive the mechanism to feed taping parts intermittently at various pitches. Even for taped parts with different storage pitches for electronic parts, by changing the combination of drive sources used,
Since chip-type electronic components can be transported to the supply position in several batches, a parts cassette can be shared even if the chip-type electronic components are stored at different pitches, making it easier for users to prepare for switching circuit board models. Therefore, there is no need to store extra parts cassettes, and storage costs can be reduced.

In addition, even for taped parts with a large storage pitch for chip-shaped electronic components that could not be transported with conventional electronic component supply equipment, the combination of drive sources to be used is selected and the chip-shaped electronic components are transported to the supply position in several stages. By doing so, the chip-shaped electronic component can be supplied to the mounting head.

Due to the above-mentioned effects, the contribution to industry is significant.

[Brief explanation of the drawing]

FIG. 1 is a side view of an electronic component supply device which is an embodiment of the present invention, FIG. 2 is a perspective view of taped components, FIG. 3 is a side view of a conventional electronic component supply device, and FIG. It is a detailed view of the entrance part of the figure. 1... Carrier tape, 1a... Conveyance hole, 1b... Storage recess, 2... Chip type electronic component, 3... Cover tape, 4...
...Storage reel, 6...Ratchet, 6...
...Feed pawl, 7...Ratchet pawl, 8...
... Ratchet pawl drive lever, 9 ... Reverse prevention lever, 10 ... Instep lever, 11 ... Link, 12 ... Carrier tape, 13 ...・
・・Cover tape, 14・・・Tape presser, 14L・
... Slit, 15 ... Torsion coil spring, 16 ... Tension spring, 17 ... Storage reel, 18 ... Drive source, 19 ... ...Cam shaft, 20...Cam, 21......shi/<
-122...Cam follower, 23...
・Tension spring, 24... Fulcrum shaft, 25...
・Bracket, 26...Cam follower, 27
...Lever, 28 ...Block, 29
・・・・・・Cam follower, 3o・river・drive source, 3
1...Cam, 32...Cam 7 lower, 33...Tension blade.

Claims (1)

[Claims] A feeding mechanism that can intermittently feed a taping component in which chip-shaped electronic components are housed at equal intervals in a part of the frame body, and a plurality of drive sources that can drive the mechanism to intermittently feed the taping component at various pitches. Electronic component supply equipment equipped with