JPS5910094Y2 - Glass tube forming equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to a device for shaping coiled glass tubules, such as a capillary force ram for gas chromatography, and in particular to the structure of a mechanism that can efficiently collect the shaped glass tubules. It is something.

This type of glass tube is made by stretching the glass tube that has been softened in the heating furnace and shaping it into a coiled shape through a semicircular curved tube by the difference in circumferential speed between a supply roller and a stretching roller placed between the heating furnace. Was.

Conventionally, collecting the coiled glass tubes that come out of the curved tube is done manually by rotating a straight rod that extends horizontally through the curved diameter of the curved tube. However, with this method, if the shaped glass tubes are long, a large floor space is required on the equipment, and the glass tubes that are manually collected may become entangled and break. Ta.

In view of the above-mentioned problems, the object of this invention is to provide a glass tube shaping device that can efficiently manually collect long glass tubes.

This invention will be explained below with reference to embodiments of the drawings.

In the drawing, a glass tube 1 is softened in a heating furnace 2, and the peripheral speed difference between the supply roller 3 and the stretching roller 4 placed between the heating furnace 2 (of course, the peripheral speed of the stretching roller 4 is the same as that of the supply roller 3).
faster than that of

) to stretch it and pass it through a curved tube 5 disposed downstream of the stretching roller 4 to form a coiled glass thin tube 6, as in the conventional method.

According to this invention, the glass capillary tubes 6 formed into a coiled shape according to the above-mentioned structure are collected on a rotatable turntable 9 supported on a horizontal plane in the following manner.

That is, a hand control rod 7 is provided to pass through the curved diameter of the curved pipe 5, and the tip of the hand control rod 7 is connected to a support shaft 10 of a turntable 9 via a flexible joint (for example, a flexible tube) 8. and drive it to rotate.

This rotational drive is driven in synchronization with the stretching roller 4.

Further, the turntable 9 is rotated at a constant speed in synchronization with the movement of the glass tube 6, separately from the rotation of its support shaft 10, that is, the hand rod 7, through a bearing or the like.

Therefore, the glass tube 6 moves forward while rotating on the hand rod 7 and is sequentially accumulated on the turntable 9. At this time, the turntable 9 is also rotating at a constant speed in synchronization with the movement of the glass tube 6. The extra force applied to the glass capillary tubes 6 accumulated on the turntable 9 is absorbed by the rotation of the turntable 9, thereby ensuring that the glass capillary tubes 6 are never broken.

This invention, as described above, has the advantage that the installation floor space of the apparatus is small and that the shaped glass tubules can be collected in an orderly manner without becoming entangled and therefore without breaking.

[Brief explanation of drawings]

The drawing shows an embodiment of the device of this invention.
2 is a glass tube, 2 is a heating furnace, 3 is a supply roller, 4 is a stretching roller, 5 is a bent tube, 6 is a glass capillary tube, 7 is a manual rod, and 9 is a turntable.

Claims (1)

[Scope of utility model registration request] A supply roller and a stretching roller are placed between the heating furnaces, and a curved tube is provided after the stretching rollers, and the glass tube is softened in the heating furnace and stretched by the difference in circumferential speed between the supply roller and the stretching roller, and then passed through the curved tube. In a device shaped into a coiled glass thin tube, a rotating hand rod is provided to pass through the curved diameter of the curved tube, and its tip is attached to the spindle of a rotatable turntable that is pivoted on a horizontal plane. A glass capillary shaping device, characterized in that it is rotatably supported by a flexible joint so that coiled glass capillaries coming out of a bent pipe are collected on a turntable.