JPS6033563Y2 - Automatic cap mounting device for circular fluorescent lamps - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an automatic cap attachment device for an annular fluorescent lamp, and more particularly to an automatic cap attachment device that can automatically attach the cap with a cap pin to the bulb of an annular fluorescent lamp.

Conventionally known manufacturing devices for annular fluorescent lamps are disclosed, for example, in Japanese Utility Model Publication No. 51-7744 and Japanese Utility Model Publication No. 51-774.
As shown in No. 5, holding devices arranged at equal intervals on the index table hold the bulbs of the annular fluorescent lamps, and screw setter devices and lead wire connections are arranged adjacent to the index table. With equipment, withering equipment, etc.
There is a type that automatically fixes the cap with screws, connects the cap pin and lead wire, and depletes the bulb.

However, in conventional manufacturing equipment for annular fluorescent lamps, including the device described above, the work of inserting lead wires into the cap pins and attaching the caps to the tube bulbs must be done manually. It was not possible to completely automate the manufacturing process.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an automatic cap mounting device for an annular fluorescent lamp, which automates the mounting of a cap on a bulb by automatically inserting a lead wire into a cap pin.

The present invention provides a lead wire positioning device that clamps and positions the lead wire of a tube whose lead wire is positioned in a predetermined direction, and a lead wire that draws the lead wire positioned by the lead wire positioning device. a wire drawing device; and a cap insertion device that holds the cap and moves it in the direction of extension of the lead wire so that the tip of the lead wire slightly protrudes beyond the cap pin and inserts the cap into the tip of the lead. , an automatic cap insertion device for an annular fluorescent lamp comprising a cap pushing device that clamps the tip of a lead wire and pushes only the cap to a position close to the bulb; a pair of claws that cooperate with each other to sandwich and position the lead wire when closed; a bifurcated portion that is movable up and down relative to the support and the bifurcated portion; A cap chuck is provided, which has a through hole formed in a part to communicate with a vacuum tank, etc., and which sucks and holds a cap fed by a parts feeder, etc. a pair of levers rotatably mounted on a movably supported support and adapted to cooperate with each other to press the cap; the levers move up and down relative to and with the support; a fixed claw, a pair of movable claws attached to both ends of the fixed claw and cooperating with the fixed claw to sandwich the lead wire, a spring biasing the movable claw toward opening; It has a roller rotatably attached to the back of the claw, and a chuck that closes the movable claw and clamps the tip of the lead wire when the lever closes and presses the roller. .

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic cap mounting device for an annular fluorescent lamp according to the present invention will be described below with reference to the drawings.

The automatic cap mounting device shown in this embodiment consists of a bulb holder 2 which is adapted to hold the bulb of an annular fluorescent lamp and is moved intermittently by a conveyor, and a bulb holder 2 which is attached to the bulb holder and which is attached to the bulb holder. A lead wire positioning device 3 that clamps and positions the lead wire; a pair of lead wire drawing devices 4 that draw the lead wire; It is roughly divided into a cap insertion device 5 that inserts a cap into the tip, a cap pushing device 6 that pushes the cap close to the tube, and a screw tightening device 7 that tightens both the upper and lower caps. line device 4
, the cap inserting device 5, the cap pushing device 6, and the screw tightening device 7 are arranged at predetermined intervals along the movement path of the tube holder.

In FIGS. 1 and 2, a tube holder 2 is shown.

The tube holder 2 includes a base plate 20 movably supported on a guide rail 10 by rollers 21 rotatably attached to the side, a main body 22 fixed on the base plate 20, and a main body 22 mounted diagonally on the main body. It includes three support plates 23 and a receiving plate 23' attached at an angle of 45 degrees in this embodiment.

A leaf spring 24 having a shape as shown in FIG. 1 is attached to each support plate 23 at one location as shown in FIG.

A contact piece 25 is attached to the free end of the leaf spring 24 for contacting the tube m.

This tube holder 2 is designed to hold a tube m diagonally with the base mounting part facing down, and a base plate 20 is pushed by a roller 11 attached to a conveyor chain (not shown). The robot is moved along the guide rail 10 by being moved along the guide rail 10.

1 and 3, the lead wire positioning device 3
It is shown.

This lead wire positioning device 3 is connected to the main body 2 of the tube holder 2.
2, positioning claws 32 and 32a fixed to a pair of shafts 31 and 31a, which are rotatably supported parallel to each other on the main body 30, and
1 and 31a, and a pair of gears 33 and 33a that mesh with each other, and a lever 34 that is fixed to a shaft 31a.

The tips of the winter melons 32 and 32a have grooves 3 that align with each other.
5 and 35a are formed.

The size and spacing of the ■ grooves are such that the distance t1 between the valleys of the own V groove and the distance t2 between the valleys of the opponent's ■groove are approximately equal to the spacing between the four cap pins of the cap. It's decided.

A spring 37 is stretched between a pin 35 fixed to the main body and a pin 36 attached to the tip of the lever 34 on an extension line A-A connecting the centers of the two shafts 31 and 31a.

When the pin 36 is below the extension line A-A, the lever 34 stops at the position where the pawl 32.32a is engaged, as shown in FIG. - When the position is slightly above A, the action of the spring 37 causes the third
As shown by the chain line in the figure, the claw is automatically moved until it comes into contact with the stopper 38, and the claw is opened and kept in that state.

The lead wire positioning device 3 is attached to the tube holder 2 in the relationship shown in FIG. The lead wire 1 is positioned (in the state shown in FIG. 3).

The claws 32, 32a of this lead wire positioning device 3 are opened with the lever 34 facing upward (to the position where it engages with the stopper 38) when the tube m is attached to the tube holder 2.
After the tube is attached, it can be closed manually or automatically by a lever or the like at a position where a first wire drawing station, that is, a first wire drawing device, which will be described later, is located.

In FIG. 4, the first wire drawing device 4 is shown.

This wire drawing device 4 includes a column 40 fixed at a first wire drawing station, a vertical shaft 41 supported vertically movably on the column 40, a support 42 attached to the vertical shaft 41, and a support 42 attached to the vertical shaft 41. The wire drawing chuck 43 is attached below the tip of the wire drawing chuck, and the actuating device or cylinder 44 for operating the wire drawing chuck is provided.

The wire drawing chuck 43 includes a main body 430 attached below the tip of the support body 42, a fixed claw 431 fixed to the center of the lower part of the main body 430, and a main body 430 on both sides of the fixed claw 431.
A pair of movable claws 432, 4 rotatably attached to
33 and a spring 434 biasing the movable pawl into engagement with the fixed pawl 431, the rod 45 is connected to the cylinder 4.
When pushed down by the piston rod 440 of No. 4,
Movable claws 432 and 433 open against the force of a spring 434.

This wire drawing device 4 has a movable claw 432 of a wire drawing chuck 43.
433 is opened, it descends to a position, for example, and at that position, the movable claw closes and the lead wire is sandwiched between it and the fixed claw, and in that state, it rises to, for example, position H, and the lead wire is Wire-draw 1.

This wire drawing device 4 is provided with a line segment drawing mechanism 46 below.

This line segment mechanism has a guide 460 and a line segment jig 461 that is guided by the guide 460 and reciprocates in a direction Y perpendicular to the traveling direction X of the tube holder; teeth,
For example, it is moved in the direction of arrow Y by a fluid cylinder or a crank mechanism (both not shown) to lead the wire drawing chuck 43 directly above the claws 32, 32a of the lead wire positioning device before the movable claws 432, 433 close. Enter between wire 1 and separate the lead wires.

The second wire drawing device is the same as described above, except that the direction of the wire drawing chuck is 90° different from that of the wire drawing device described above, and the movable chuck opens and closes in the direction Y perpendicular to the advancing direction of the tube holder. The structure is exactly the same as that of .

Therefore, the explanation of its structure will be omitted. However, the line segment provided in the second wire drawing device is inserted between the lead wires by reciprocating the jig in the same direction as the moving direction of the tube holder, that is, the same direction as the moving direction of the tube. Therefore, no mechanism can be used for the above-mentioned line segment, so a structure as shown in FIG. 5 may be used.

In FIG. 6, a cap insertion device 5 is shown for inserting the cap, in particular the cap with the cap pin, into the lead wire.

This cap insertion device 5 has a main body 50 fixed in proximity to a movement path of the cap holder 2 at a cap insertion station.
a support member, i.e., a hollow shaft 51 supported by the main body 50 so as to be movable up and down; and a shaft 5 which is inserted into the hollow shaft 51 so as to be movable up and down and has a base chuck 53 integrally formed at its lower end.
2, and a pair of lead wire positioning claws 54 rotatably attached to a pair of protrusions 510 formed to protrude in the radial direction from the lower end of the hollow shaft 51.

The cap chuck 53 has two forks 530 and 531, and the lower surface thereof has a curved surface corresponding to the curved surface of the cap.

A through hole 532 opening at the lower end is formed in each of the bifurcated portions 530, 531, and the through hole 532 communicates with a through hole 520 formed in the shaft 52 and extending in the axial direction.

This through hole 520 is connected to a vacuum pump (not shown) via a flexible pipe 55 connected to the upper end of the shaft 52.
The through hole 532 is connected to a vacuum.

At the tips of the pair of claws 54, two V-grooves (not shown) having the same shape as the grooves formed in the claws 32, 32a of the lead wire positioning device 3 are formed, and the lead wires 1 are held in place. positioning.

The cap insertion device 5 having the above-mentioned structure has a parts feeder (not shown) having a known structure, so that the cap device position of, for example, a tube (the lower end of the cap) is located directly below the cap chuck.
When the cap n is supplied to the position ■ above U, the claw 54
When opened, both the shaft 52 and the cap chuck descend, and the cap n is sucked and held by the cap chuck.

When the suction of the cap is completed, the shaft and the cap chuck return to their original positions, and the parts feeder is also retracted.

Next, when the tube m is sent to the cap insertion station by the tube holder 2, the hollow shaft 51. Shaft 52 and mouth chuck 53 are integrated to position W (lower end of hollow shaft)
It descends, the claws 54 close, and the lead wire 1 is clamped directly above the claws 32, 32a of the lead wire positioning device 3 to position the lead wire 1 (at this time, the cap chuck is in the position shown by the chain line in FIG. 6). be).

Next, only the shaft 52 and the cap chuck 53 are lowered until the tip of the lead wire 1 slightly protrudes from the cap pin P.
Insert into the lead wire.

When the insertion of the cap is completed, the claws 54 open and the cap chuck is released from suction, and the cap chuck and the like rise and return to their original positions.

Incidentally, the lifting and lowering of the hollow shafts 51 and 52 and the opening and closing operations of the claws 54 are performed in synchronization with the overall operation of the cap mounting device or annular fluorescent lamp manufacturing device using a known cam and lever mechanism. ing.

In FIG. 7, the cap pushing device 6 is shown.

The cap pushing device 6 includes a main body 60 disposed close to the moving path of the tube holder 2 at the cap pushing station, a support body 61 that is vertically movably supported by the main body 60, and a hollow shaft 61. A pair of base pushing levers are each rotatably attached to a shaft 62 inserted into the shaft 61 so as to be able to move up and down, and a pair of protrusions 610 formed to protrude in the radial direction from the lower end of the hollow shaft 61. 63 and
The chuck 64 is attached to the lower end of the shaft 62 and opens and closes in response to the opening and closing operations of the lever 63, and clamps the tip of the lead wire 1.

The chuck 64 includes a chuck main body 640 fitted to the lower end of the shaft 62, a fixed claw 641 integrally formed with the chuck main body at the center of the lower part of the chuck main body 640, and a rotating part on both sides of the fixed claw 641. A pair of movable claws 642 are freely attached and are adapted to clamp the tip of the lead wire 1 in cooperation with a fixed claw 641, and a movable claw 642 is stretched between the ends of both movable claws 642. The spring 643 and each movable pawl 642 are biased toward opening.
It has a roller 644 that is rotatably attached to the lever 63 and engageable with the inner surface of the lever 63.

In this chuck 64, when the lever 63 is in the closed position as shown in FIG. The tip of the lead wire is held between them.

In the cap pushing device configured as described above, when the tube m with the cap n inserted into the tip of the lead wire is held in the cap holder and reaches the cap pushing station, the hollow shaft 61 and the shaft 62 are first moved, and therefore the lever 63 and the chuck 64 is in the state where the lever 63 and the movable claw 642 are open and in the relative positional relationship as shown by the solid line in FIG.
Together, they descend to a position O where the chuck 64 can clamp the tip of the lead wire 1.

Next, the lever 63 is closed as shown in the figure, and its tip is connected to the base n.
At the same time, the chuck 64 closes when a roller attached to a movable claw is pushed by the lever 63, and clamps the tip of the lead wire l.

When the chuck is closed and the lead wire is completely clamped, the hollow shaft 61 and shaft 62 are lowered while the lever remains closed, and the cap n is pushed into a position close to the tube m (as shown by the chain line in FIG. 7). ).

At this time, the claws 32, 32a of the lead wire positioning device are open.

After the cap has been pushed in, the lever 63 and chuck 64 are opened, and the hollow shaft 61, shaft 62, lever 63 and chuck 64 are raised and returned to their original positions.

Note that the vertical movement of the hollow shaft 61 and the shaft 62 and the lever 6
The opening and closing operations of No. 3 are performed by a known cam and lever mechanism, similar to the aforementioned cap insertion device.

In FIG. 8, the screw tightening device 7 is shown.

This screw tightening device 7 consists of a lower cap holder 70 that holds the lower cap supplied from a parts feeder etc. and rises to a predetermined position, and a lower cap holder 70 that holds the upper cap (the side with the cap pin) and lowers it. It has a known structure consisting of an upper cap holder 71 that is held together with the side caps, and a screw setter 72 that screws together both the upper and lower caps.

The lower cap is applied from below to the bulb to which the upper cap n is attached at a position where this screw tightening device is located, and both caps are tightened together with screws.

Next, the entire operation of the automatic cap mounting device will be explained.

First, the tube m is manually attached to the cap holder 2 with the lead wire 1 opened upward, as shown by the broken line in FIGS. 1 and 2.

After the cap is attached to the cap holder 2, the claws 32, 32a of the lead wire positioning device 3 are manually moved immediately after the cap is attached, or the entire cap automatic mounting device is moved when the cap holder reaches the first wire drawing station. It is automatically closed by an actuating rod that operates in synchronization with the operation of the lead wire to clamp and position it.

When the tube holder 2 holding the tube m arrives at the first wire drawing station, the first wire drawing device 4, which operates in synchronization with the operation of the main cap mounting device, operates to draw the lead wire 1.

When the wire drawing at the first wire drawing station is completed and the tube holder arrives at the second wire drawing station, a wire drawing device having a configuration similar to the first wire drawing device 4 is activated to draw the lead wire to the first wire drawing station. The wire is drawn by holding it in a direction 90 degrees out of phase with the wire drawing device (at this time, the claws 32 and 32a of the lead wire positioning device 3 remain closed).

Tube m with lead wire 1 drawn at the second wire drawing station
When the lead wire is held in the tube holder 2 and reaches the cap insertion station (the claw of the lead wire positioning device remains closed at this time), the cap insertion device 5 is activated and the upper cap is inserted as described above. n into the tip of the lead wire until the lead wire 1 protrudes slightly beyond the base pin P.

When the tube m with the cap n inserted into the lead wire 1 is held in the tube holder and arrives at the cap push-in station, the lever 34 of the lead wire positioning device 3 is pulled down by an arbitrary iron or the like, and the claws 32° 32a are pulled down. It opens, and then the cap pushing device 6 operates and the upper side (the side with the cap pin) is opened.
Push in the nozzle.

When the tube into which the cap n has been pushed in at the cap pushing station arrives at the screw tightening station, the lower cap is pressed against it from below by a screw tightening device, and both caps are tightened with screws.

In this way, the caps are successively attached to the tubes held in the tube holder that moves intermittently.

In this embodiment, the lead wire drawing apparatus is provided with a jig for separating the line segments, but this is not necessarily necessary.

Further, the chuck of the cap pushing device may be an electromagnetic chuck instead of having the configuration shown in the drawing.

As is clear from the above description, if the automatic cap mounting device of the present invention is used, the cap mounting operation of an annular fluorescent lamp can be completely automated, and therefore the efficiency of the cap mounting operation can be significantly improved.

[Brief explanation of the drawing]

Fig. 1 is an elevational view of a bulb holder used in the automatic cap mounting device for annular fluorescent lamps according to the present invention, and Fig. 2 shows the line ■-■ in Fig. 1.
3 is a perspective view of the lead wire positioning device, FIG. 4 is a perspective view of the lead wire drawing device, FIG. 5 is a perspective view of another embodiment of the mechanism, and FIG. 6 is an elevational sectional view of the cap insertion device, FIG. 7 is an elevational sectional view of the cap pushing device, and FIG. 8 is an elevational view of the screw tightening device. 2...Tube holder, 3...Lead wire positioning device, 30...Main body, 32.32a...
...Claw, 33°33a...Tooth L34...
Lever 35, 35a...■Groove, 4...
・Wire drawing device, 40... Support, 41...
Shaft, 42... Support body, 43... Wire drawing chuck, 44... Actuating device, 5... Cap insertion device, 50...・Body, 51...
Support body, 52... shaft, 53... cap chuck, 54... lever 6... cap pushing device, 60... main body, 61...
Support, 62...shaft, 63...lever 64...chuck.

Claims (1)

[Scope of utility model registration request] A lead wire positioning device that clamps and positions the lead wire of a tube whose lead wire is positioned in a predetermined direction; and a lead wire drawing device that draws the lead wire positioned by the lead wire positioning device. a cap insertion device that inserts the cap into the tip of the lead by holding the cap and moving it in the direction of extension of the lead wire so that the tip of the lead wire slightly protrudes beyond the cap pin; An automatic cap insertion device for an annular fluorescent lamp comprising a cap pushing device that clamps the tip and pushes only the cap to a position close to the bulb; a pair of claws that cooperate with each other to sandwich and position the lead wire when the lead wire is opened; a bifurcated portion that is movable up and down relative to the support body; and a bifurcated portion formed on the bifurcated portion. A cap chuck is provided, which has a through hole that communicates with a vacuum tank, etc., and which sucks and holds the cap supplied by a parts feeder, etc., and the cap pushing device is supported so as to be movable up and down on the main body. a pair of levers that are rotatably attached to the support and cooperate with each other to press the cap; and a fixed claw that is movable up and down together with the support and relative to the support. , a pair of movable claws that are attached to both ends of the fixed claw and cooperate with the fixed claw to sandwich the lead wire; a spring that biases the movable claw in an opening tendency; and a spring on the back of the movable claw. An annular fluorescent lamp comprising a rotatably mounted roller, and a chuck that closes the movable claw and clamps the tip of the lead wire when the lever closes and presses the roller. Automatic cap mounting device.