JPS5824894B2 - Barbu no Hiiki Oyobi Gas Fuuni Yusouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for evacuating and filling a bulb with gas in the manufacturing process of, for example, a fluorescent lamp.

For example, in the manufacturing process of annular fluorescent lamps, after the bulb and mount have been sealed, the bulb is heated to the softening temperature of glass and bent to form an annular shape. If a completed bulb is subjected to bending work, the mounting member and phosphor surface inside the bulb will oxidize due to the high temperature in the atmosphere, reducing the quality of the lamp.

Prior to this bending operation, the pulp is replaced with air and filled with nitrogen or an inert gas.

Conventionally, this type of equipment has been developed that performs valve exhaust and gas filling in one process, but this conventional equipment requires high-speed mechanical equipment because the machine speed is limited by the time required for exhaust gas and gas filling operations. There was a drawback that could not be changed.

The present invention was made in view of the above-mentioned circumstances, and its purpose is to provide a valve exhaust and gas filling device that prevents the valve exhaust and gas filling operations from interfering with the flow of the lamp production process. This is what I am trying to do.

The present invention will be described below based on an embodiment shown in the drawings.

The figure shows an apparatus of the present invention installed in the process of transferring a fluorescent lamp after the sealing process between the bulb and the mount to the bending process to form it into an annular shape, or in the process of heating the bulb before the bending process. . . . are a large number of carriers, and each of these carriers 1 . . . has an inner hole 1a penetrating vertically.
It is a cylindrical body with openings at both ends, and the lower surface thereof has a holding port for inserting and holding the open end 3a of the exhaust pipe 3 of the bulb 2 of the fluorescent lamp in an airtight manner with a sealing member 4 made of a rubber ring interposed therebetween. 5 is opened, and a holding hole 5 is provided on the upper surface of the opening.
A connection port 6 is opened to communicate with the exhaust pipe 3 held in the exhaust pipe 3 .

Rollers 7.7 are rotatably attached to the protrusions 1b, 1b protruding on both the left and right sides of each of the conveyance tools 1, and these rollers 7.7 are attached to rails 9 provided on the machine frame 8. , 9.

Each conveyor 1... is intermittently driven by an intermittent drive mechanism (not shown) in synchronization with the production process of the valve 2, so that the rollers 7, 7 roll on the rails 9, 9,
As a result, the transport tools 1 are run in a vertical line with their front and rear ends touching each other.

Further, the support member 1 is located above the carrier 1...
0 is provided, and this support member 10 is connected to the carrier 1...
It extends for a predetermined length along the running direction.

On the lower surface of both left and right sides of this support member 10, conveyor tools 1...
A guide surface 11.11 is formed along the traveling direction of the four lever members 13, which are rotatably supported on the machine frame 8 via a shaft 12. The roller 14 is rotatably supported at the lower end of the roller 14.

The upper ends of the front and rear lever members 13.13 are connected by a connecting rod 15, and the left and right lever members 13.1
3 are connected by a connecting rod 16, so that each lever member 13... can rotate integrally.

The tip of a piston rod 18 that is moved forward and backward by a cylinder mechanism 17 is connected to the upper end of the lever member 13 on the rear left side via a connecting rod 19. 13... rotates to support the support member 10
is designed to move downward and upward.

Further, the support member 10 is configured to reciprocate within a predetermined range in the traveling direction of the conveyor 1 .

That is, the support member 10 lowered by the lever member 13 moves forward together with the carrier 1 to a predetermined position, as will be described later, but at that position it moves in synchronization with the movement of the carrier 1. The supporting member 10 is raised by the lever member 13 that is operated, and this raised supporting member 10
A stopper 20 fixed to the machine frame 8 is provided at the rear of the machine frame 8.
In addition, a piston rod 22 is provided in front of the raised support member 10 and is moved forward and backward by a cylinder mechanism 21 for return.
is pushed back to the position where it hits the stopper 20.

Further, in the figure, 23... are a predetermined number of connectors supported by the support member 10, and these connectors 23 are made of a cylindrical body with openings at both ends and an inner hole 23a penetrating vertically. , whose cylindrical shaft portions are slidably inserted in the vertical direction of the support member 10, and are provided at the same regular intervals as the conveyance tools 1.

The lower end opening of each connector 23 has a cap-shaped opening 24 that is removably connected to the connection port 6 of the corresponding carrier 1 by the downward movement of the support member 10. A sealing member 25 made of a rubber ring or the like is protruded from the opening periphery of the cap-shaped opening 24, and when the support member 10 is lowered, the opening edge end surface of the connection port 6 of the carrier 1 is exposed to the sealing member 25. It is designed to make airtight contact.

The cap-shaped opening 24 of each of the connectors 23...
A compression coil spring 26 is interposed between the collar and the support member 10 to bias the connectors 23 downward, and each connector 23 biased downward in this way A locking ring 27 fixed thereto is locked to the upper surface of the support member 10.

In addition, the upper end opening of each of the connectors 23... is connected to the rubber tube 2.
8 to an exhaust mechanism and a gas filling mechanism (both not shown).

The operation of the device configured as described above will be explained.

Each carrier 1 holds the open end 3a of the exhaust pipe 3 of the bulb 2 of the fluorescent lamp addressed to one in the holding opening 5, and is intermittently driven by an intermittent drive mechanism (not shown) while the rail 9 , 9 in a column.

Then, the cylinder mechanism 17 is operated in synchronization with the intermittent stop while the conveyance tool 1 is running, the piston rod 18 advances, and the lever member 13 is rotated to rotate the support member 10.
Move down.

When the support member 10 is lowered to the position shown in FIG. 1 and FIG. 1... with a seal member 25 interposed therebetween.

At this time, the connectors 23, which are urged downward by the compression coil springs 26, come into elastic contact with the carriers 1, so that the connection is reliably made, and the carriers 1,... An airtight passageway extending between the inner hole 1a and the inner hole 23a of the connector 23 is formed.

Then, in a state where the connectors 23 are connected to the carriers 1, the connectors 23...therefore, the support member 10 is moved in the direction of arrow A by the carriers 1.

At this time, the support member 10 moves on the rollers 14...

While the support member 10 is traveling within a predetermined range together with the carrier 1..., an exhaust mechanism and a gas filling mechanism (neither of which are shown) connected to the rubber tube 28 are operated, and the rubber tube 28 is operated. 28, the inside of the valve 2 is exhausted through the inner hole 23a of the connector 23..., the inner hole 1a of the carrier 1..., and the exhaust pipe 3, and the inside of the exhausted valve 2 is filled with nitrogen or inert gas. It is intended to enclose the following.

Incidentally, it is of course possible to perform the evacuation and gas filling operations as described above again or multiple times as necessary.

The support member 10, which has been lowered by the lever member 13, advances to a predetermined position together with the conveyor 1. At that position, it is moved in synchronization with the movement of the conveyor 1, and is moved as indicated by the arrow B. The support member 10 is raised in the direction of arrow A by the lever member 13 that is rotated in the direction, and this raised support member 10 is moved by the cylinder mechanism 21 that is operated at this time.
The piston rod 22 is pushed back in the direction of arrow 1 to the stopper 20 position.

At this time, the support member 10 quickly returns over the rollers 14.

The support member 1 returned to its original position in this way.
0, the lever member 13 is moved downward again to repeat the above-mentioned operation, and at this time, a new exhaust gas and a This means that the valve 2 to be filled with gas is being sent over the rails 9, 9.

The present invention has been described in detail above, and a support member is provided above a large number of conveyance tools running in tandem while holding exhaust pipes of bulbs such as fluorescent lamps, and a cap is attached to the support member. A predetermined number of connectors each having a shaped opening are supported, and by lowering the support member, the cap-shaped opening of each connector is connected to the corresponding connection port of the carrier, and each connector is connected to the carrier along with the carrier. Since the valve is evacuated and gas filled through the connecting device and the conveyor while traveling within a predetermined range, the operation of evacuating and filling the bulb with gas does not interfere with the flow of the fluorescent lamp production process. First, production efficiency can be improved.

In addition, since each connector is collectively supported by the support member and moved up and down and moved, there is an advantage that the structure can be simplified.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view, and FIG. 2 is an enlarged sectional view taken along the line ■-■ in FIG. 1. 1... Conveyance tool, 2... Valve, 3... Exhaust pipe, 4
... Seal member, 5... Holding port, 6... Connection port,
7...Roller, 8...Machine frame, 9...Rail, 10
... Support member, 11 ... Guide surface, 12 ... Shaft, 1
3... Lever member, 14... Roller, 15. 16
．． 19... Connecting rod, 17.21... Circulation rod mechanism, 18.22... Piston rod, 20... Stopper,
23... Connection tool, 24... Cap-shaped opening, 25
... Seal member, 26 ... Compression coil spring, 27.
...Latching ring, 28...Rubber tube.

Claims (1)

[Claims] 1. In a device that exhausts gas and fills the pulp while traveling in tandem within a predetermined range, the conveyor has a holding port for holding the exhaust from the valve at one end and a connection port at the other end. , a support member having a predetermined length that is located above the carrier and is capable of vertical movement and reciprocating movement; A valve exhaust and gas filling device characterized by comprising a predetermined number of connectors each having a cap-like opening that can be detachably connected, and a lever member that moves the support member up and down.