JP2502817Y2 - Glass tube rod cutting device - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass tube rod cutting device capable of preventing water droplets from falling on the glass tube rod to be formed in the cutting of the glass tube rod continuously formed by the Danner method or the like. .

[0002]

2. Description of the Related Art Conventionally, molten glass supplied from a forehouse of a glass melting furnace onto a sleeve is drawn out from the tip of the sleeve and formed into a tubular shape, which is slid over a plurality of guide rollers and drawn into a tube. At the end, it is cut into a glass tube rod of a predetermined length.

Generally, for cutting the glass tube rod, a glass tube rod is drawn at a constant speed, and a cutter that rotates in a vertical plane parallel to the glass tube rod in synchronism with the tube drawing speed,
For example, a device is used in which a glass cutter is cut by a heat shock at the same time that a whetstone cutter containing water is brought into contact with it to scratch it.

An example of such a cutting device is shown in FIGS. 3 and 4, in which the rotating disc 1 is parallel to the glass tube rod 2 drawn by the Danner method in the direction of arrow A at a constant speed. And a supporting member 3 which is arranged vertically and is provided on one end surface of the rotating disc 1 so as to stand upright on the rotating disc 1 vertically.
Cutter 4 with the grindstone cutter attached is firmly attached to. The rotating disk 1 rotates in the direction of arrow B, which is the same direction as the tube drawing direction of the glass tube rod 2, in synchronism with the drawing speed, and as the rotating disk 1 rotates, the cutter 4 contacts the bottom end. Reach the surface of the glass rod 2 and reach the
Is designed to scratch the glass tube rod 2 at a right angle to the tube axis of the glass tube rod 2 . At the contact position, the glass tube
A guide roller is provided on the rear side of the part where the cutter 4 of the rod 2 contacts.
5 is arranged and the glass tube rod 2 is held so as not to sink to the lower side.

In addition, water is supplied to moisten the cutter 4.
In the water supply device, the water 7 stored in the upper tank 6 is stored at a position different from the contact position of the cutter 4.
It is supplied to a sponge 8 arranged at a position on the circular orbit of the rolling disc 1, and an appropriate amount of water 7 is supplied to the cutter 4 via this sponge 8. The amount of water 7 supplied from the upper tank 6 is controlled by the valve 9.

In the glass tube rod 2 cutting device constructed as described above, the water-containing cutter 4 comes into contact with the glass tube rod 2 at the lowermost position as the rotary disc 1 rotates, and its When scratched, the glass tube rod 2 is cut at the wound site by heat shock due to the temperature difference between the cutter 4 and the glass tube rod 2. When the rotary disc 1 further rotates and the cutter 4 separates from the glass tube rod 2, water 7 is supplied from the sponge 8 to the cutter 4, and the cutter 4 becomes wet. Then, the water-containing cutter 4 reaches the lowermost position and contacts the glass tube rod 2 again. At this time,
Since the rotating disk 1 rotates in synchronization with the tube drawing speed of the glass tube rod 2, the peripheral speed of the cutter 4 becomes a speed in synchronization with the tube drawing speed. To be disconnected.

[0007]

However, in the cutting device for the glass tube rod 2 described above, the rotating disk 1 to which the cutter 4 is fixed is arranged parallel to the drawing direction of the glass tube rod 2. Water drops from the sponge 8 on the pipe drawing line or the water supplied to the cutter 4
However, there is a problem in that the glass scatters due to centrifugal force and adheres to the glass tube rod 2 to cause defective cracking or damage to the glass tube rod 2 due to heat shock, resulting in a reduction in yield such as obstruction of the flow to the subsequent process.

The present invention has been made in view of the above circumstances, in which a glass pipe forming line for a glass tube rod and a rotary disk rotating on the pipe drawing line intersect each other at a predetermined angle. Accordingly, it is an object of the present invention to provide a glass tube rod cutting device in which water droplets are prevented from falling onto a glass tube rod to be molded.

[Constitution of device]

[0010]

In order to achieve the above object, the present invention is attached to a rotating member, and the rotating member
A glass that rotates continuously by the rotation of a glass and is continuously molded
Moves in the direction of the drawing line in sync with the drawing speed of the rod
Meanwhile, at the contact position of the above glass tube rod and the bottom of the rotating circle
The cutter that comes into contact with this cutter differs from the contact position
Water supply device for moistening at the position, and
Hurts due to contact with
Glass tube rod that cuts the above glass tube rod by shock
In the above cutting device, the rotating surface of the rotating member is the glass.
One that intersects the pipe drawing line of the steel rod diagonally at a predetermined angle
And the cutter is the glass tube rod on the rotating member.
It is characterized in that it is attached so as to be orthogonal to the tube axis when it comes into contact with.

[0011]

Since the present invention is configured as described above, it is possible to prevent water drops dripping from the water supply device for supplying water to the cutter or water drops splattered from the cutter from falling and adhering to the glass tube rod and improving product quality. At the same time, the efficiency of the production process can be improved.

[0012]

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

FIG. 1 is a plan view showing the outline of a glass tube rod cutting apparatus according to an embodiment of the present invention, and FIG. 2 is a side view thereof. The same parts as those in FIGS. 3 and 4 are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the above figure, the glass tube rod 2 is a rotary member which is a rotary member in which a cutter 4 composed of a grindstone cutter is fixed to a pipe drawing line formed by continuous pipe drawing. Disc 1 intersects at a predetermined angle α, and rotating disc 1
Are arranged so that the plane of rotation is a vertical plane . On one end surface of the rotating disk 1, a support member 10 having an inclined surface having an angle substantially equal to the intersection angle α formed on one end side is erected at an angle substantially equal to the intersection angle α . And
The cutter 4 is continuously pipe-formed on this support member 10.
It will be at a right angle to the tube axis of the glass tube rod 2
It is firmly fixed.

As described above, even when the rotary disc 1 is arranged so as to intersect the pipe drawing line at a predetermined angle α, the cutter 4 contacts the glass tube rod 2 at a right angle to the tube axis of the glass tube rod 2. , The cut surface of the glass tube rod 2 is perpendicular to the tube axis.

Since the other parts are the same as those in FIGS. 3 and 4, the description thereof will be omitted.

Next, the operation of the embodiment of the present invention having the above structure will be described.

The sponge 8 of the water supply device, which is arranged on the orbit of the rotating disk 1 which intersects with the pipe drawing line at a predetermined angle α, also has a predetermined angle with respect to the pipe drawing line.
It will be arranged on the surface that intersects at a degree α,
By removing the contact position of the target 4 and the position directly above it.
It can be arranged at a position deviating from just above the tube rod 2.
As a result, the water 7 supplied from the upper tank 6 to the sponge 8 will not drop onto the glass tube rod 2 even if dropped from the sponge 8.

When the cutter 4 is not in contact with the glass tube rod 2, it crosses the glass tube rod 2 by a predetermined angle α and deviates from the tube axis. Therefore, the cutter containing water 7
Water droplets scattered from 4 do not adhere to the glass tube rod 2.

As described above, the water droplets dripping from the sponge 8 or the water droplets splattering from the cutter 4 are generated by the glass tube rod.
By preventing the glass tube rod 2 from dropping or adhering to the glass pipe 2, it is possible to prevent a decrease in yield such as a defective crack or damage of the glass tube rod 2 and an obstruction of the flow to the subsequent process.

In the above embodiment, an example applied to pipe drawing by the Danner method has been described, but the present invention is not limited to the Dunner method and may be applied to pipe drawing by the downdraw method.

In the above embodiment, the water 7 is supplied to the cutter 4 via the sponge 8.
The water 7 is not limited to be supplied via 8 and the water 7 may be dropped from the upper tank 6 directly to the cutter 4, for example.

Further, the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[0024]

As described above in detail, according to the glass tube rod cutting device of the present invention, by arranging the rotating surface of the cutter so as to intersect the drawing line of the glass tube rod,
It is possible to prevent water droplets dripping from the water supply device that supplies water to the cutter or water droplets scattered from the cutter from falling and adhering to the glass tube rod, and it is possible to improve product quality and streamline the production process. Can be achieved.

[Brief description of drawings]

FIG. 1 is a plan view of a glass tube rod cutting apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of a glass tube rod cutting device according to an embodiment of the present invention.

FIG. 3 is a plan view of a conventional glass tube rod cutting device.

FIG. 4 is a side view of a conventional glass tube rod cutting device.

[Explanation of symbols]

 2… Glass tube rod 4… Cutter 6… Upper tank (water supply device) 8… Sponge (water supply device)

Claims (1)

(57) [Scope of utility model registration request] 1. A rotary member attached to a rotary member
A glass that rotates continuously by the rotation of a glass and is continuously molded
Moves in the direction of the drawing line in sync with the drawing speed of the rod
Meanwhile, at the contact position of the above glass tube rod and the bottom of the rotating circle
The cutter that comes into contact with this cutter differs from the contact position
Water supply device for moistening at the position, and
Hurts due to contact with
Glass tube rod that cuts the above glass tube rod by shock
In the above cutting device, the rotating surface of the rotating member is the glass.
One that intersects the pipe drawing line of the steel rod diagonally at a predetermined angle
And the cutter is the glass tube rod on the rotating member.
It is mounted so that it is orthogonal to the pipe axis when it comes into contact with
A glass tube rod cutting device characterized by the above.