JP3123188B2 - Component supply device and component mounting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply device used for a component mounter for mounting components such as electronic components on a printed circuit board and a component mounter using the same .

[0002]

2. Description of the Related Art A conventional component supply apparatus will be described below.

As shown in FIGS. 5 and 6, when a component is supplied to a component mounting machine, the reel 3 on which the component storage tape 1 is wound and stored is held by the holding unit 14 and the lever 5 is swung. As a result, the ratchet wheel 6 is intermittently fed, and the component storage tape 1 is fed at a constant pitch, so that the components stored in the component storage tape 1 are sent out to a predetermined component removal position along the tape running surface of the main body. .

[0004] In the figure, reference numeral 16 denotes a body 7 of the component supply device 15.
A tape presser 8 rotatably connected to a clamper 8 for fixing the component supply device 15 to an electronic component mounting machine or the like; and 13, a plurality of component supply devices 15 mounted thereon, depending on the component to be mounted . A component supply table that moves in the direction indicated by arrow Z, 11 is a printed circuit board on which components are mounted, 12
Is an XY table for positioning the printed circuit board 11 in the direction indicated by the arrow XY, and 10 is a suction nozzle for sucking and holding components from the component supply device 15, and mounts components on the printed circuit board 11.

[0005] In the conventional component supply device 15, even when the component storage pitch of the component storage tape is different, the vertical movement stroke of the lever 5 for sequentially feeding by one pitch is constant.

[0006]

However, in the above-described conventional configuration, the time during which the component supply table 13 that is mounted and moved can be moved, that is, the time when the roller 2 and the lever 5 are separated from each other. Has a problem that the stroke of the lever 5 is constant and therefore constant, and the supply tact time of the component storage tape 1 having a small component storage pitch cannot be shortened, resulting in poor production efficiency.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and provides a component supply apparatus and a component supply device which shortens a supply tact time of a component storage tape having a small component storage pitch and improves production efficiency .
And a component mounting machine using the same .

[0008]

In order to achieve the above object, a component mounting apparatus according to the present invention is a component mounting machine for mounting a component on a printed circuit board, and an operation of feeding a tape containing the component at the storage pitch. Receiving external power to perform
Receiving means for oscillating and holding the storage tape
When the pitch is small, compared to when the storage pitch is large,
In all, a portion where the transmitted means swings with a small stroke
Product supply device, and a plurality of the component supply devices are mounted in parallel,
To select a component supply device that holds the components to be mounted
A moving parts supply table and the selected parts supply equipment;
Remove the component from the device and mount the component on the printed circuit board
The component mounting section and the component storage tape of the component supply device are sent.
To the transmitted means provided in the component supply device
Transmission means operating at a predetermined stroke,
The part storage tape is fed by one storage pitch and the transmitted
Immediately after the contact between the means and the transmission means is released,
For selecting a component supply device holding components to be
The component supply table is moved .

[0009]

According to the present invention, according to the above configuration, the parts
If the component storage tape has a small delivery pitch,
Faster ties than parts storage tapes
Component supply tape to supply the next component to be mounted
When the tape feed is started,
Component supply table for supplying components to be mounted between and next
Supply tact time combined with
Production efficiency can be improved. Also, the parts storage pick
Same supply tact time as parts storage tape
If so, supply parts table for selecting parts supply equipment
The time it takes for the robot to move can be extended .

[0010]

An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 3 showing one embodiment of the present invention, the same parts as those of the conventional example are denoted by the same reference numerals and the description thereof will be omitted.

In FIGS. 2 and 3, reference numerals 4A and 4B denote link levers for transmitting the vertical movement of the lever 5 by the roller 2 downward, and are biased by a spring in the ascending direction. Reference numeral 9 denotes a wheel for transporting the component storage tape 1 of the reel 3, reference numeral 20 denotes a ratchet wheel fixed to the wheel 9, reference numeral 21 denotes a ratchet lever rotatably provided on a link lever, and reference numeral 17 denotes a rotatable ratchet lever 21. A wheel lever provided and rotatably provided on a concentric axis with the wheel 9, a stopper pin 18, and a stopper lever 19 for preventing the wheel 9 from reversing are always urged by the wheel 9 in the pressing direction.

A description will be given of the relationship and operation of each component in the component supply device including the above components.

The description of the same operation as the conventional example described with reference to FIGS. 5 and 6 will be omitted. As shown in FIGS. 2 and 3, the downward drive of the roller 2 in the direction indicated by the arrow A is a rotational movement drive of the lever 5, and the lever 5 rotates from the state shown by the solid line to the state shown by the two-dot chain line. Exercise. Accordingly, the link levers 4A and 4B move downward, and the ratchet lever 21 moves the ratchet wheel 2
Move around 0 to the position where multiple teeth are engaged. Next, when the roller 2 is driven upward in the direction opposite to the direction indicated by the arrow A, the ratchet lever 21 rotates the wheel 9 and the ratchet wheel 20 in the direction indicated by the arrow B,
The component storage tape 1 of the reel 3 is transported until the ratchet lever 21 contacts the stopper pin 18, and the transport for one pitch is completed.

When the component storage pitch of the component storage tape 1 is small, as shown in FIG. 2, the length of the link lever 4A is shorter than the link lever 4B shown in FIG. Therefore, the height of the lever 5 in contact with the stopper pin 18 at the upper limit position is reduced. Therefore, the vertical movement stroke of the roller 2 does not change, and only the stroke in which the roller 2 contacts the lever 5 and moves up and down changes depending on the type of the component storage pitch of the component storage tape 1.

Thus, as shown in FIG. 1, when the component supply device 15 of the component storage tape 1 having a small component storage pitch is mounted on the component supply table 13 of the component mounting machine, the component storage tape having a large component storage pitch can be used. Since the gap between the roller 2 and the lever 5 is different between when the component supply device 15 is mounted and when the roller 2 and the lever 5 are not in contact with each other, the component supply table 13 is selected for selecting the component supply device 15. As shown by the white arrow C, the component storage tape 1 having a small component storage pitch due to the movement
When a component is picked up, the time ratio of movement of the component supply table 13 in one cycle operation increases.

As is apparent from FIG. 4 showing this timing chart, in one cycle operation, when the components of the component storage tape 1 having a small component storage pitch are supplied, the moving time of the component supply table 13 is longer. You can see that

Therefore, the component supply table 13 is driven by the selected component supply device 15 by determining the optimum moving time.

As described above, according to the present embodiment, when a component having a small component storage pitch is mounted, a large amount of time is spent for moving the component supply table 13 in one cycle. It is possible to speed up the mounting tact of only the component supply device 15 of the storage tape 1 or to increase the selection moving distance of the component supply device 15 of the component supply table 13 within a constant tact, thereby shortening the supply tact time and producing. Efficiency can be improved.

[0020]

As is clear from the above description of the embodiment, the present invention relates to a component storage tape having a small component storage pitch.
In case of component storage tape with large component storage pitch
Supplies the components to be mounted next at an earlier timing than
Movement of the parts supply table for
Time to feed the loop and supply the parts to be mounted next.
Supply time matching the moving time of the parts supply table
And the production efficiency can be improved.
In addition, the same component storage tape
If it is the supply tact time, select the component supply device.
Therefore, it is necessary to secure a long time for the parts supply table to move.
Can be .

[Brief description of the drawings]

FIG. 1 is a front view of a main part showing a state in which a component supply device according to an embodiment of the present invention is mounted on a component supply table.

FIG. 2 is a schematic side view showing an operation state when a link lever of the component supply device is short.

FIG. 3 is a schematic side view showing an operation state when a link lever of the component supply device is long.

FIG. 4 is a timing chart of a movement cycle of a component supply table of the component supply device.

FIG. 5 is a schematic perspective view of a conventional component supply device.

FIG. 6 is a schematic perspective view showing a concept of a main part of a component mounting machine in which a plurality of the component supply devices are mounted.

[Explanation of symbols]

 5 Lever 13 Parts supply table 15 Parts supply device

Continued on the front page (72) Inventor Takahiro Yonezawa 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. References JP-A-60-213437 (JP, A) JP-A-62-111858 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H05K 13/00-13/04

Claims (3)

(57) [Claims] 1. A component mounting machine for mounting a component on a printed circuit board, wherein the component mounting machine performs an operation of feeding a tape containing the component at a storage pitch .
To be transmitted by external power
If the storage pitch of the storage tape is small,
The transmitted means swings more than when the storage pitch is large.
A component feeder having a small moving stroke, and a plurality of component feeders mounted in parallel,
The parts supply that moves to select the held parts supply
Parts from the supply table and the selected parts supply device, and
A component mounting unit to be mounted on a printed circuit board; and a unit for feeding a component storage tape of the component supply device.
A predetermined strobing is applied to the transmitted means provided in the product supply device.
And a transmission means that operates by a work loop.
Immediately after the contact between the means and the transmission means is released,
For selecting a component supply device holding components to be
Moving the parts supply table
Equipment . 2. The transmission means provided in the component supply device comprises a lever which moves up and down by the action of a transmission means comprising a roller which moves up and down, wherein the lever is provided at the storage pitch when the storage pitch of the storage tape is small. The component mounting apparatus according to claim 1, wherein a top dead center that swings up and down is set lower than that in a case where is larger. 3. The transmitting means is always in contact with the transmitted means.
3. The method according to claim 1, wherein the actuator operates at a constant stroke.
Mounting of the component mounting apparatus.