CN219197611U

CN219197611U - Automatic vacuumizing device of wire drawing furnace

Info

Publication number: CN219197611U
Application number: CN202223552083.4U
Authority: CN
Inventors: 安百翔; 甘发勇; 喻世雄
Original assignee: Wuhan Zhixian Technology Co ltd
Current assignee: Wuhan Zhixian Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-16
Anticipated expiration: 2032-12-29

Abstract

The utility model belongs to the technical field of optical fiber production equipment, and provides an automatic vacuumizing device of a drawing furnace, which comprises a box body with an opening at the top, wherein the bottom of the box body is connected with a shell, a through hole is formed between the box body and the shell, a trigger firing pin is arranged in the shell and positioned at the top of the shell, a piston column is arranged in the shell in a matched manner, and a piston balancing weight is arranged at the tail end of the piston column in a matched manner. The utility model aims to provide an automatic vacuumizing device of a wire drawing furnace, which reduces the association of excessive pipelines through a one-key operation function, automatically triggers a gas filling device, is convenient to operate, effectively saves labor cost and increases production efficiency.

Description

Automatic vacuumizing device of wire drawing furnace

Technical Field

The utility model belongs to the technical field of optical fiber production equipment, and particularly relates to an automatic vacuumizing device of a wire drawing furnace.

Background

The optical fiber is formed by heating a molded optical fiber preform rod to quartz softening temperature in a drawing furnace and drawing the optical fiber preform rod into filaments by traction, the fluctuation of the filament diameter of the optical fiber is closely related to the drawing furnace, meanwhile, the air tightness of the drawing furnace directly influences the stability of the optical fiber in the drawing process, the air tightness of the drawing furnace is stable, and the temperature field in the drawing furnace is determined to be stable, so that the high-quality optical fiber is produced.

The air tightness detection of the wire drawing furnace is generally carried out by vacuumizing the wire drawing furnace, the current vacuumizing of the optical fiber wire drawing furnace is generally carried out by adopting a manual mode, a vacuumizing pipeline and an upper sealing cover and a lower sealing cover are installed by workers, the protection gas is closed, vacuumizing is started, in the vacuumizing process, whether the vacuum pressure of the wire drawing furnace meets the requirement or not is judged by workers through an external pressure gauge, a vacuum pump is closed after the vacuum meets the requirement, the protection gas of the wire drawing furnace is started, and after the furnace body is filled with the protection gas, the sealing cover of the wire drawing furnace is removed, so that the whole vacuumizing work is completed. Traditional evacuating device not only complex operation, it is consuming time longer, great influence production efficiency, personnel operating stability is difficult to guarantee simultaneously, and external vacuum meter passes through the pipe connection, and the pipeline gas leakage can appear, leads to wire drawing stove vacuum to judge unusual such as mistake, can consume a large amount of human costs and time cost.

Disclosure of Invention

In view of the above problems, the utility model aims to provide an automatic vacuumizing device for a wire drawing furnace, which reduces the association of too many pipelines and automatically triggers a gas filling device through a one-key operation function, is convenient to operate, effectively saves labor cost and increases production efficiency.

The utility model adopts the following technical scheme: the vacuum device comprises a box body with an opening at the top, a shell is connected to the bottom of the box body, a through hole is formed between the box body and the shell, a trigger firing pin is arranged in the shell and positioned at the top of the shell, a piston column is arranged in the shell in a matching manner, and the tail end of the piston column penetrates out of the bottom of the shell and is provided with a piston balancing weight in a matching manner.

Further, a retainer ring is arranged in the shell and positioned at the bottom of the shell.

Further, the tail end of the piston column is inwards provided with a mounting opening, the piston balancing weight is arranged in the mounting opening in a matching mode, and the tail end of the piston column is further screwed with a mounting cover.

Furthermore, sealing strips are arranged at the opening position of the box body along the periphery.

Further, the side wall of the box body is provided with an opening and closing device.

The beneficial effects of the utility model are as follows: firstly, the device can effectively improve the production efficiency, reduce the operation time of personnel and save the time cost; secondly, the utility model can effectively save labor cost and avoid people staring at; thirdly, excessive operation of personnel is not needed, and loss caused by misoperation of personnel is avoided; fourth, reduce the connection of the vacuum pipeline, reduce the factor influencing the vacuum degree; fifthly, the mechanical vacuum degree test has long service life and stable equipment.

Drawings

FIG. 1 is a sectional view of an automatic vacuum-pumping device of a wire drawing furnace.

Fig. 2 is a schematic diagram of an automatic vacuum-pumping device of a wire drawing furnace.

Fig. 3 is a schematic view of the installation of the vacuum device provided by the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In order to illustrate the technical scheme of the utility model, the following description is made by specific examples.

Only those parts relevant to the embodiments of the present utility model are shown for convenience of description.

Referring to fig. 1-3, the vacuum device comprises a box body 1 with an opening at the top, a shell 2 is connected at the bottom of the box body, a through hole 3 is formed between the box body 1 and the shell 2, a trigger firing pin 4 is arranged in the shell and at the top of the shell, a piston column 5 is arranged in the shell in a matching manner, and the tail end of the piston column penetrates out of the bottom of the shell and is provided with a piston balancing weight 6 in a matching manner.

The vacuum device is rotationally arranged on the wire drawing furnace, so that the vacuum device can be attached to the lower opening of the wire drawing furnace, and the vacuum device can be driven to rotate through the driving motor, so that the vacuum device can be opened/closed according to requirements. Since the driving method of the vacuum device is not the important content of the device, no specific description will be made here.

Through installing this device on the wire drawing stove in a sealing manner, firstly, need select the piston counter weight that accords with the vacuum requirement of wire drawing stove 11, install at the piston post end, make vacuum device and wire drawing stove lower extreme laminating by actuating motor, during the vacuum start, along with the furnace internal pressure reduces, the piston post vertical motion, when the vacuum reaches the vacuum requirement, the piston post top touches the trigger firing pin, control vacuum pump stop work, the shielding gas is opened, in the wire drawing stove is gone into to the shielding gas, the piston post moves down, when piston trigger end breaks away from with the trigger firing pin, actuating motor drive vacuum device, up to this whole evacuation action completion, if wire drawing stove air tightness can not reach the vacuum requirement of settlement, the piston post can not with trigger firing pin contact time, wire drawing stove alarm starts, relevant personnel can carry out on-the-spot investigation trouble.

As a preferable structure, a retainer ring 7 is arranged in the shell 2 and positioned at the bottom of the shell; the piston post is T style of calligraphy, the retaining ring has played the spacing effect to the piston post on the one hand, prevents that the piston post from coming off, and on the other hand has played the guide effect when the vertical removal of piston post for the vertical removal in-process of piston post is more stable.

Further as a preferable structure, the tail end of the piston column 5 is inwards provided with a mounting opening 8, the piston balancing weight 6 is arranged in the mounting opening 8 in a matching way, and the tail end of the piston column is further screwed with a mounting cover 9.

In this structure, the piston balancing weight need be changed according to the vacuum requirement in the wire drawing stove, when changing, only need unscrew the installation lid, put into the installation mouth with the piston balancing weight that needs to be changed, screw up again the installation lid can.

And sealing strips 10 are arranged at the opening position of the box body along the periphery. When the vacuum device is attached to the lower opening of the wire drawing furnace, the tightness is improved under the action of the sealing strip.

To sum up: the device can verify the air tightness of the wire drawing furnace, provide high-quality conditions for temperature field stability, improve equipment efficiency effectively, reduce personnel operation time and labor cost, reduce the number of vacuum pipelines and vacuum meters, reduce equipment cost and vacuum influencing factors, reduce production cost, and have stable mechanical structure and long service life.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. An automatic evacuating device of wire drawing stove, its characterized in that: the vacuum device comprises a box body with an opening at the top, a shell is connected to the bottom of the box body, a through hole is formed between the box body and the shell, a trigger firing pin is arranged in the shell and positioned at the top of the shell, a piston column is arranged in the shell in a matching manner, and the tail end of the piston column penetrates out of the bottom of the shell and is provided with a piston balancing weight in a matching manner.

2. An automatic vacuum-pumping device for a wire drawing furnace as defined in claim 1, wherein: and a check ring is arranged in the shell and positioned at the bottom of the shell.

3. An automatic vacuum-pumping device for a wire drawing furnace as defined in claim 1, wherein: the piston column is T-shaped.

4. An automatic vacuum-pumping device for a wire drawing furnace as defined in claim 3, wherein: the piston column tail end is inwards provided with a mounting opening, the piston balancing weight is arranged in the mounting opening in a matching mode, and the piston column tail end is further screwed with a mounting cover.

5. An automatic vacuum-pumping device for a wire drawing furnace as defined in claim 1, wherein: sealing strips are arranged at the opening position of the box body and along the periphery.