Thermometer vacuole positioning and heating mechanism

Abstract

The invention discloses a thermometer vacuole positioning and heating mechanism, which comprises a conveying device, a heating device and a vacuole sealing device. A positioning device is arranged on the outer side of the conveying device. The heating device and the vacuole sealing device are arranged behind the positioning device. The corresponding parts of the heating device and the vacuole sealing device are provided with rotary driving devices. The positioning device is provided with a positioning pin, and the heating device is provided with a heating table. The heating table is provided with a heating fuel gas port. The vacuole sealing device is provided with a vacuole sealing clamping claw. The corresponding parts of the rotary driving devices, corresponding to the heating table and the vacuole sealing clamping claw, are provided with driving wheels or driving chains. The driving wheels or the driving chains used for driving thermometers conveyed in a fixed groove to continuously rotate. By adopting the thermometer vacuole positioning and heating mechanism, the lengths of vacuole tubes are limited to be unified during the vacuole sealing process, so that the lengths of vacuoles are consistent. Meanwhile, the process of limiting the length of a vacuole, heating and sealing the vacuole is automatically completed. Moreover, the heating step and the vacuole sealing step are cooperated accurately, so that the product rejection rate is effectively reduced. The production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to a thermometer processing device, in particular to a thermometer liquid bubble positioning and heating mechanism. Background technique [0002] The liquid thermometer utilizes thermal expansion and cold contraction of the liquid to measure temperature, and a liquid bubble is arranged at the bottom of the liquid thermometer, and the liquid bubble contains the measuring liquid. During the production process of the thermometer, the bubble tube should be sealed so that the bubble end forms a hemispherical closed shell. [0003] The bubble sealing process is now carried out manually. Different operators, the problem that is likely to occur during the operation process is that the length of the bubble end varies greatly. During the heating process before bubble sealing, because the heating position is not uniform, the length of the product bubble after sealing is different. Large, too long and too short are prone to waste products, a...

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Problems solved by technology

[0003] The bubble sealing process is now carried out manually. Different operators, the problem that is likely to occur during the operation process is that the length of the bubble end varies greatly. During the heating process before bubble sealing, because the heating position is not uniform, the length of the product bubble after sealing is different. Large, too long and too short are prone to waste products, and the waste rate is high; and the above-mentioned work process, because there is no positioning process, the operator needs to observe the sealing heating part, and keep the heating part as consistent as possible in length manually. In the above process, the brightness is relatively high. The high scorching flame is easy to cause visual fatigue, which further increases the scrap rate

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