CN215983883U

CN215983883U - Pre-vacuumizing furnace

Info

Publication number: CN215983883U
Application number: CN202122408447.0U
Authority: CN
Inventors: 刘德才; 蔡荣昌
Original assignee: Deya Furnace Technology Jiangsu Co ltd
Current assignee: Deya Furnace Technology Jiangsu Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-08
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a pre-vacuumizing furnace, which comprises an outer furnace body and a gas circulation pipeline arranged at the bottom of the outer furnace body, wherein a filtering mechanism is arranged at the bottom of an inner cavity of the outer furnace body, and one end of the gas circulation pipeline extends to the inner cavity of the outer furnace body and is positioned below the filtering mechanism; an electric control valve is arranged at the joint of the gas circulation pipeline and the outer furnace body, and a vacuum pump is arranged on the surface of the gas circulation pipeline; the filtering mechanism comprises an outer frame body and a metal filter screen, the metal filter screen is arranged on the inner side of the outer frame body, a first limiting groove is formed in the left side and the right side of the inner wall of the outer frame body, a first limiting slide bar is arranged at the left end and the right end of the metal filter screen, the first limiting slide bar is located on the inner side of the first limiting groove, and the first limiting slide bar is L-shaped. The pre-vacuumizing furnace can effectively reduce the dust and the particulate matters to be in the pipeline, realizes the centralized treatment of the dust and the particulate matters, and improves the practicability of the vacuum furnace.

Description

Pre-vacuumizing furnace

Technical Field

The utility model belongs to the technical field of vacuum furnaces, and particularly relates to a pre-vacuumizing furnace.

Background

The vacuum furnace is a structure which uses a vacuum pump to exhaust air in the furnace to form a vacuum state, has wide application, and can be used for smelting, brazing and the like of metal workpieces.

Before the vacuum furnace is used, air extraction is needed to be carried out, air in the furnace body is extracted, and during the air extraction process, processing dust and particles remained in the furnace easily enter the interior of a pipeline, so that the vacuum furnace is prone to failure after long-term work; in addition, the traditional pre-vacuumizing furnace is not convenient for centralized treatment of dust and particles, so that the practicability of the vacuum furnace is poor and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pre-vacuumizing furnace which can effectively reduce the dust and particulate matters from entering the interior of a pipeline.

Another objective of the present invention is to provide a pre-vacuuming furnace, which realizes centralized processing of dust and particulate matters, and improves the practicability of the vacuum furnace.

In order to achieve the above purpose, the solution of the utility model is:

a kind of pre-vacuumized stove, including outer furnace body and gas circulation pipeline set up in its bottom, there are filter mechanisms in the cavity bottom of the outer furnace body, one end of the gas circulation pipeline extends to the cavity of the outer furnace body, and locate under the filter mechanism; an electric control valve is arranged at the joint of the gas circulation pipeline and the outer furnace body, and a vacuum pump is arranged on the surface of the gas circulation pipeline;

the filtering mechanism comprises an outer frame body and a metal filter screen, the metal filter screen is arranged on the inner side of the outer frame body, a first limiting groove is formed in the left side and the right side of the inner wall of the outer frame body, a first limiting slide bar is arranged at the left end and the right end of the metal filter screen, the first limiting slide bar is located on the inner side of the first limiting groove, and the first limiting slide bar is L-shaped.

The right sides of the inner walls of the first limiting grooves are provided with spring frames, supporting blocks are welded at the left ends of the spring frames, and the supporting blocks are movably connected with the surfaces of the first limiting sliding rods.

The top left end of the metal filter screen is provided with a handheld frame, a second limiting groove is formed in the inner sides of the handheld frame and the outer frame body, and a second limiting sliding rod is detachably connected to the inner cavity of the second limiting groove.

And a metal plate is fixedly connected to the inner side of the second limiting slide rod, and filter tanks are uniformly formed in the surface of the metal plate.

The top of the right side of the outer furnace body is provided with a numerical control mechanism, the top of the inner cavity of the outer furnace body is provided with an electric heating mechanism, and the numerical control mechanism is electrically connected with the electric heating mechanism through a cable.

The bottom of the outer furnace body is provided with a supporting seat, the left side of the outer furnace body is movably connected with a sealing furnace door through a hinge, and the gas circulation pipeline penetrates through the supporting seat.

After adopting the scheme, compared with the prior art, the utility model has the beneficial effects that:

(1) according to the utility model, the outer furnace body, the gas circulation pipeline, the filtering mechanism, the vacuum pump and the electric control valve are combined, and meanwhile, the filtering mechanism is combined by the outer frame body and the metal filter screen, so that dust and particles in the furnace can be filtered in the process of pumping air during the operation of the vacuum pump, the condition that the pipeline is blocked by the dust is effectively avoided, and the cleanliness of the vacuum furnace during the vacuum operation is improved;

(2) according to the utility model, the outer furnace body, the gas circulation pipeline, the filtering mechanism, the vacuum pump and the electric control valve are combined, and meanwhile, the metal filter screen in the filtering mechanism can be conveniently detached through the combined connection among the spring frame, the supporting block and the first limiting sliding rod, so that the dust and particles in the filter screen can be conveniently and intensively cleaned, and the practicability of the vacuum furnace is improved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic sectional view of the outer furnace body according to the present invention;

FIG. 3 is a schematic cross-sectional view of the filter mechanism of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Reference numerals:

1. an outer furnace body; 2. a gas flow conduit;

3. a filtering mechanism; 31. an outer frame body; 32. a metal screen; 33. a first limiting groove;

4. a spring holder; 5. a support block; 6. a first limiting sliding rod;

7. a hand-held frame; 8. a metal plate; 9. a filter tank;

10. a second limiting groove; 11. A second limiting sliding rod;

12. a numerical control mechanism; 13. An electric heating mechanism; 14. A vacuum pump;

15. an electrically controlled valve; 16. a supporting seat; 17. and sealing the furnace door.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

As shown in fig. 1, the present invention provides a pre-vacuum furnace, which comprises an outer furnace body 1 and a gas circulation pipeline 2 arranged at the bottom of the outer furnace body, wherein the gas circulation pipeline 2 extends into an inner cavity of the outer furnace body 1, an electric control valve 15 is arranged at the top of the gas circulation pipeline 2, and a vacuum pump 14 is arranged on the surface of the gas circulation pipeline 2; as shown in fig. 2 and fig. 3, a filtering mechanism 3 is disposed at the bottom of the inner cavity of the outer furnace body 1, the filtering mechanism 3 is located above the gas flow pipeline 2, the filtering mechanism 3 includes an outer frame 31 and a metal filter screen 32, in the operation process of the pre-vacuum furnace, when a metal appliance inside the outer furnace body 1 needs to be subjected to vacuum heating processing, the electronic control valve 15 needs to be controlled to be opened, and the vacuum pump 14 is controlled to operate to pump out the gas inside the outer furnace body 1, in the pumping-out process, the gas firstly passes through the metal filter screen 32 disposed on the inner side of the outer frame 31, the metal filter screen 32 can filter dust and particles generated by heating the metal appliance inside the outer furnace body 1 during the operation pumping-out process of the vacuum pump 14, and further effectively avoids the situation that the dust blocks the gas flow pipeline 2.

As a preferred embodiment of the present invention, as shown in fig. 3, a metal filter screen 32 is disposed on an inner side of an outer frame body 31, specifically, a first limiting groove 33 is disposed on each of left and right sides of an inner wall of the outer frame body 31, a first limiting slide bar 6 is disposed at each of left and right ends of the metal filter screen 32, the first limiting slide bar 6 is located inside the first limiting groove 33, the first limiting slide bar 6 is disposed in an L shape, and the first limiting slide bar 6 is located in the first limiting groove 33, so as to maintain stability of the metal filter screen 32 during filtering operation.

As a preferred embodiment of the present invention, as shown in fig. 3 and 4, a spring frame 4 is disposed on the right side of the inner wall of a first limit groove 33, a support block 5 is welded on the left end of the spring frame 4, the support block 5 is movably connected with the surface of a first limit slide bar 6, a handheld frame 7 is disposed on the left end of the top of a metal filter screen 32, a second limit groove 10 is disposed on the inner sides of the handheld frame 7 and an outer frame body 31, a second limit slide bar 1 is detachably connected to the inner cavity of the second limit groove 10, a metal plate 8 is fixedly connected to the inner side of the second limit slide bar 11, filter grooves 9 are uniformly disposed on the surface of the metal plate 8, the filter grooves 9 disposed on the surface of the metal plate 8 can prevent metal devices from blocking the metal filter screen 32, the detachable sliding connection between the second limit groove 10 and the second limit slide bar 1 can facilitate the detachment of the metal plate 8, the handheld frame 7 is controlled to push the metal filter screen 32 to shrink the spring frame 4, and the combined connection between the supporting block 5 and the first limiting slide rod 6 is released, so that the metal filter screen 32 in the filtering mechanism 3 is detached, and the dust and the particles on the surface of the metal filter screen 32 are conveniently cleaned in a centralized manner.

The right side top of outer furnace body 1 is provided with numerical control mechanism 12, and the inner chamber top of outer furnace body 1 is provided with electric heating mechanism 13, numerical control mechanism 12 is through being provided with cable and electric heating mechanism 13 electric connection, the bottom of outer furnace body 1 is provided with supporting seat 16, and the left side of outer furnace body 1 has sealed furnace gate 17 through being provided with hinge active link, gas circulation pipeline 2 runs through in supporting seat 16, metal sheet 8 adopts the high metal aluminium of cold and hot conductivity to make, but rapid heating up when the heating, can promote cooling speed when opening sealed furnace gate 17 and carrying out the cooling work of outer furnace body 1.

The working principle of the utility model is as follows: when the furnace body is in work, the vacuum pump 14 is controlled to operate to pump out the gas in the outer furnace body 1, the metal filter screen 32 can filter dust and particles generated by heating and processing metal devices in the outer furnace body 1 in the process of operating and pumping the vacuum pump 14, so that the condition that the dust blocks the gas circulation pipeline 2 is effectively avoided, the filter tank 9 arranged on the surface of the metal plate 8 can prevent the metal devices from blocking the metal filter screen 32, the sliding detachable connection between the second limiting groove 10 and the second limiting slide bar 1 is released, the metal plate 8 and the handheld frame 7 can be detached, the metal filter screen 32 is pushed by controlling the handheld frame 7, the combined connection between the support block 5 and the first limiting slide bar 6 can be released under the elastic action of the spring frame 4, the metal filter screen 32 in the filtering mechanism 3 is detached, and the dust and the particles on the surface of the metal filter screen 32 can be intensively cleaned, subsequently, the outer furnace body 1 can be cooled by opening the sealing furnace door 17.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A kind of pre-evacuation stove, characterized by: the furnace comprises an outer furnace body (1) and a gas circulation pipeline (2) arranged at the bottom of the outer furnace body, wherein a filtering mechanism (3) is arranged at the bottom of an inner cavity of the outer furnace body (1), and one end of the gas circulation pipeline (2) extends to the inner cavity of the outer furnace body (1) and is positioned below the filtering mechanism (3); an electric control valve (15) is arranged at the joint of the gas circulation pipeline (2) and the outer furnace body (1), and a vacuum pump (14) is arranged on the surface of the gas circulation pipeline (2);

filtering mechanism (3) are including outer support body (31) and metal filter screen (32), and the inboard of outer support body (31) is provided with metal filter screen (32), and spacing groove (33) have all been seted up to the inner wall left and right sides of outer support body (31), and both ends all are provided with spacing slide bar (6) about metal filter screen (32), and spacing slide bar (6) are located the inboard of spacing groove (33), and spacing slide bar (6) are the setting of L form.

2. The pre-evacuation oven as claimed in claim 1, wherein: the spring frame (4) is arranged on the right side of the inner wall of the first limiting groove (33), the supporting blocks (5) are welded at the left end of the spring frame (4), and the supporting blocks (5) are movably connected with the surface of the first limiting slide rod (6).

3. The pre-evacuation oven as claimed in claim 2, wherein: the top left end of metal screen (32) is provided with handheld frame (7), and spacing groove two (10) have all been seted up to the inboard of handheld frame (7), outrigger body (31), the inner chamber of spacing groove two (10) is all dismantled the formula and is connected with spacing slide bar two (11).

4. A pre-evacuation oven as claimed in claim 3 wherein: and the inner side of the second limiting sliding rod (11) is fixedly connected with a metal plate (8), and filter tanks (9) are uniformly formed in the surface of the metal plate (8).

5. The pre-evacuation oven as claimed in claim 1, wherein: the heating furnace is characterized in that a numerical control mechanism (12) is arranged at the top of the right side of the outer furnace body (1), an electric heating mechanism (13) is arranged at the top of an inner cavity of the outer furnace body (1), and the numerical control mechanism (12) is electrically connected with the electric heating mechanism (13) through a cable.

6. The pre-evacuation oven as claimed in claim 1, wherein: the bottom of the outer furnace body (1) is provided with a supporting seat (16), the left side of the outer furnace body (1) is movably connected with a sealing furnace door (17) through a hinge, and the gas circulation pipeline (2) penetrates through the supporting seat (16).