CN113564339A

CN113564339A - Steel wire annealing device with automatic impurity removing structure

Info

Publication number: CN113564339A
Application number: CN202111124886.7A
Authority: CN
Inventors: 洪琴
Original assignee: Nantong Jiangqinmei Metal Product Co ltd
Current assignee: Nantong Jiangqinmei Metal Product Co ltd
Priority date: 2021-09-25
Filing date: 2021-09-25
Publication date: 2021-10-29
Anticipated expiration: 2041-09-25
Also published as: CN113564339B

Abstract

The invention discloses a steel wire annealing device with an automatic impurity removal structure, belonging to the field of steel wire heat treatment, and the steel wire annealing device with the automatic impurity removal structure comprises an electric heating pipe, an inner pipe is inserted in the inner side of the electric heating pipe, the extrusion roller is rotationally connected with the right end of the supporting arm, so that the extrusion roller can be rotationally extruded under the driving of the steel wire, the impurities on the surface of the steel wire can be effectively prevented from being accumulated on the extrusion roll while the impurities on the surface of the steel wire are cracked after the heat treatment, by elastically connecting the extension spring between the connecting plate and the outer tube and matching the magnetic attraction of the permanent magnet to the steel wire, the sliding rod can be controlled to move left and right in a reciprocating mode, the pressing block is driven to perform reciprocating pressing operation on the first air bag, the first air bag is driven to blow air to the extrusion roller, loose impurities extruded by the extrusion roller on the steel wire are blown off conveniently, and the efficiency of removing the surface impurities after the steel wire is subjected to heat treatment by the device is effectively improved.

Description

Steel wire annealing device with automatic impurity removing structure

Technical Field

The invention relates to the field of steel wire heat treatment, in particular to a steel wire annealing device with an automatic impurity removal structure.

Background

The metal heat treatment refers to a metal hot working process for obtaining a desired structure and properties of a metal material in a solid state by means of heating, heat preservation and cooling, and in the metal working nowadays, different heat treatment operations are generally performed on the metal according to the actual processing and the requirements in use in order to change the characteristics of the metal.

The steel wire is used as a metal material with wide application, annealing heat treatment is usually required during production, the purpose of the annealing treatment of the steel wire is to reduce the hardness of the material and the residual stress in the material, and the deformation and crack tendency of the steel wire during subsequent processing and use can be reduced, the tissue defects in the steel wire are effectively eliminated, so that the quality of the steel wire is improved.

However, the steel wire is after electric heater inside thermal treatment, and the inside impurity of steel wire can appear adhering to on the steel wire surface, for avoiding impurity to cause the influence to the steel wire quality, can adopt the cleaning brush to clear up the edulcoration operation to the steel wire after thermal treatment usually among the prior art, this mode though can effectually get rid of the impurity on steel wire surface, but under the permanent work, impurity piles up in the inside of cleaning brush for the cleaning brush reduces gradually the effect of steel wire surface impurity removal clearance.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a steel wire annealing device with an automatic impurity removing structure, which can continuously clean impurities on the surface of a steel wire, and can extrude the impurities on the surface of the steel wire by driving an elliptical ball when an extrusion roller rolls so as to crush the impurities.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A steel wire annealing device with an automatic impurity removal structure comprises an electric heating pipe, an inner pipe is inserted into the inner side of the electric heating pipe, an outer pipe fixedly connected with the inner pipe is sleeved on the outer side of the electric heating pipe, a plurality of shaft seats are uniformly and circularly fixed on the outer wall of the right end of the outer pipe, and each shaft seat is provided with a supporting arm, the other end of the supporting arm is rotationally connected with a squeezing roller, the outer wall of the outer tube is vertically and symmetrically connected with sliding rods in a sliding way, and the left end of two slide bars is all welded fastening has the L type support of visiting to the inner tube inside, the right-hand member fixed mounting of L type support has the permanent magnet, through connecting plate fixed connection between two slide bars, the left side of connecting plate is connected with a plurality of extension spring of fixed mounting on the outer surface of outer tube, the right-hand member of slide bar is attached in one side fixed welding of outer tube has the briquetting, the right side fixed mounting of outer tube has the gasbag one of ring structure, and gasbag one is attached in one side of squeeze roll and evenly offered small ventilative through-hole.

Furthermore, the electric heating pipe is installed between the inner pipe and the outer pipe in a spiral structure, and the back of the outer pipe is symmetrically fixed with the installation frame.

Furthermore, oval balls protruding outwards are uniformly fixed on the outer surface of the squeezing roller in a surrounding mode.

Furthermore, the supporting arm is rotatably connected with the shaft seat through the shaft rod, a torsion spring is sleeved on the outer side of the shaft rod, and two ends of the torsion spring are fixedly connected with the shaft seat and the supporting arm respectively.

Furthermore, the outer surface of the first air bag is uniformly provided with folds with an annular structure, and the outer surfaces of the left side and the right side of the first air bag are uniformly fixed with circular rings for supporting.

Furthermore, a large-caliber through hole is formed in the outer surface of the first air bag, and a check valve is fixedly mounted inside the large-caliber through hole.

Further, the link of symmetry around fixed mounting is gone up to the left end outer wall of outer tube, and the left end of every link is close to the equal fixed mounting in one side of outer tube has gasbag two, and the outer surface of gasbag is close to the one side fixed mounting in the permanent magnet has the spout, and the fixed intercommunication in left side of gasbag two has the inlet pipe, and the inside fixed mounting of inlet pipe has the check valve.

Furthermore, the extension amount of the right end of the sliding rod extending out of the outer side of the inner pipe is matched with the length of the L-shaped support.

Further, the other end of the feeding pipe extends to the inside of the external water receiving tank, and a one-way valve is also arranged in the spout.

Furthermore, a heat insulation ring is fixedly installed between the right sides of the two air bags II, and the circle centers of the heat insulation ring, the inner pipe and the outer pipe are all located on the same horizontal straight line.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is through rotating the right-hand member of connection at the support arm with the squeeze roll, make the squeeze roll can carry out the rotatory extrusion under the drive of steel wire, when the operation of breaking is carried out to steel wire surface heat treatment back impurity, the impurity that can also effectually avoid the steel wire surface is piled up on the squeeze roll, through with extension spring elastic connection between connecting plate and outer tube, and the cooperation permanent magnet attracts the magnetism of steel wire, can control the slide bar and remove about reciprocating, it reciprocates the operation of pressing down to drive briquetting to gasbag one, the drive gasbag blows to the squeeze roll earlier on, be convenient for blow off the loose impurity of extrusion roll extrusion on the steel wire, the effectual efficiency that the device got rid of steel wire heat treatment back surface impurity.

(2) Through installing electric heating pipe between inner tube and outer tube, can effectually protect electric heating pipe, avoid electric heating pipe to receive external mistake collision damage, simultaneously, also can avoid the external object of work to contact electric heating pipe and lead to taking place dangerous accident, have the mounting bracket through the back fixed mounting at the outer tube, can install the device fixed for the device need not to rely on electric heating pipe to support, makes the device more stable safety when using.

(3) Through installing torque spring in the swivelling joint department of axle bed and support arm, can be so that a plurality of squeeze rolls remain throughout hug closely with the surperficial state trend of steel wire, be convenient for ensure the extrusion compactness between squeeze roll and the steel wire, simultaneously, elasticity swivelling joint's support arm can be so that the position of squeeze roll carries out thermal treatment operation according to the specification and dimension automatically regulated of steel wire for the device is applicable to the steel wire of different specification thicknesses.

(4) Through evenly being provided with annular fold on the surface at gasbag one for gasbag one can carry out compression deformation along the fold position when being compressed, thereby avoid the intermediate position of gasbag one to outwards bulge, avoid the inboard of gasbag one and the steel wire contact after the thermal treatment, the effectual stability when having ensured the device use, through being provided with ring fixed mounting in the left and right sides of gasbag one, support the restriction to gasbag one, the effectual structural stability when having ensured gasbag one and using.

(5) Through offering the heavy-calibre through-hole on the surface of gasbag one, the air input of gasbag one has been increased, make gasbag one inside can be full of the air fast, thereby make gasbag one reset fast, the continuity of a gasbag reciprocating work has been ensured, and simultaneously, internally mounted through-hole has the check valve at the heavy-calibre, make heavy-calibre through-hole department only can admit air, avoid gasbag one to discharge from the heavy-calibre through-hole outwards when compressed, the impact force of the jet stream of tiny through-hole department on the gasbag one has been strengthened, the device stability of the edulcoration of blowing has been ensured.

(6) Through pegging graft outside water receiving incasement portion with the outside one end of inlet pipe, when making gasbag two receive the extrusion resilience, can be with the water in the external water tank inside along inlet pipe suction to gasbag two, and when gasbag two receive the oppression once more and produce deformation, spout atomizing injection through the one-way conduction with its inside absorptive water is on the permanent magnet, the realization is to the rapid cooling of permanent magnet, the stability of permanent magnet continuous operation time has further been strengthened, length and slide bar right-hand member extension volume looks adaptation through with L type support, when making the briquetting press the operation to gasbag one, L type support begins to carry out synchronous extrusion operation to gasbag two just, the effectual consistency that links up that has ensured the device during operation.

(7) Through keeping apart the heat insulating ring between second gasbag and permanent magnet, avoid the direct and two contacts of gasbag of permanent magnet, when effectually avoiding second gasbag to receive the permanent magnet extrusion, because contact temperature damage too high, be convenient for ensure the device's job stabilization nature, simultaneously, lie in same water straight line through the centre of a circle that sets up heat insulating ring and inner tube, receive the influence that blocks of heat insulating ring when the effectual steel wire of avoiding walks.

Drawings

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

FIG. 2 is a schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of the structure at B in FIG. 1;

FIG. 4 is a schematic view of the structure at C in FIG. 1;

FIG. 5 is a front cross-sectional view of the present invention;

FIG. 6 is a front view of FIG. 4;

FIG. 7 is a top cross-sectional view of the present invention;

FIG. 8 is a top view of FIG. 6;

FIG. 9 is a left side view of the present invention;

FIG. 10 is a right side view of the present invention;

fig. 11 is a schematic structural view in the working state of the present invention.

The reference numbers in the figures illustrate:

1. an electric heating tube; 101. an inner tube; 102. an outer tube; 2. a shaft seat; 201. a support arm; 202. a squeeze roll; 203. an elliptical ball; 204. a torsion spring; 3. a slide bar; 301. an L-shaped bracket; 302. a permanent magnet; 303. a connecting plate; 304. an extension spring; 305. briquetting; 4. a first air bag; 401. a large-diameter through hole; 5. a connecting frame; 501. a second air bag; 502. a spout; 503. a feed pipe; 504. a non-return valve; 505. and a heat insulation ring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1, 5 and 7, a steel wire annealing device with an automatic impurity removing structure comprises an electric heating tube 1, an inner tube 101 is inserted into the inner side of the electric heating tube 1, an outer tube 102 fixedly connected with the inner tube 101 is sleeved on the outer side of the electric heating tube 1, the electric heating tube 1 is installed between the inner tube 101 and the outer tube 102 in a spiral structure, and a mounting frame is symmetrically fixed on the back side of the outer tube 102, when the device works, the electric heating tube 1 is installed between the inner tube 101 and the outer tube 102, so that the electric heating tube 1 can be effectively protected, the electric heating tube 1 is prevented from being damaged by external accidental collision, meanwhile, a dangerous accident caused by the fact that an external object in work contacts the electric heating tube 1 can be avoided, the mounting frame is fixedly installed on the back side of the outer tube 102, the device can be installed and fixed, so that the device does not need to be supported by the electric heating tube 1, the device is more stable and safe when in use.

Referring to fig. 1-3 and fig. 10, a plurality of shaft seats 2 are uniformly fixed on the outer wall of the right end of the outer tube 102 in a surrounding manner, each shaft seat 2 is provided with a supporting arm 201, the other end of the supporting arm 201 is rotatably connected with a squeeze roller 202, and an outward-protruding elliptical ball 203 is uniformly fixed on the outer surface of the squeeze roller 202 in a surrounding manner.

When the device works, after the steel wire passes through the inner pipe 101, the extrusion rollers 202 are rotatably connected at the right end of the supporting arm 201, and by means of the matched extrusion of the extrusion rollers 202, impurities on the surface of the steel wire generated by heat treatment are cracked by the extrusion action, so that impurities on the surface of the steel wire can be better fallen off, the extrusion roller 202 is arranged to be driven by the movement of the steel wire to carry out rotary extrusion, the impurities on the surface of the steel wire after heat treatment are cracked, the extrusion roller 202 which rotates continuously can effectively avoid the impurities on the surface of the steel wire from accumulating on the extrusion roller 202, when the device works, the steel wire moves to drive the extrusion roller 202 to rotate, so that the extrusion roller 202 extrudes the steel wire, by uniformly surrounding and fixing the oval balls 203 on the outer side of the squeeze roll 202, the squeezing force to the outer surface of the steel wire when the squeeze roll 202 rotates can be effectively enhanced, thereby improving the effect of crushing impurities formed after the heat treatment on the surface of the steel wire when the squeeze roll 202 rotates.

Referring to fig. 2, the supporting arm 201 is rotatably connected with the shaft seat 2 through a shaft rod, the torque spring 204 is sleeved outside the shaft rod, and two ends of the torque spring 204 are respectively and fixedly connected with the shaft seat 2 and the supporting arm 201, when the device works, the supporting arm 201 keeps a deflection trend towards the middle position of the inner tube 101 under the elastic support of the torque spring 204, the plurality of squeezing rollers 202 can always keep a state trend of being tightly attached to the surface of the steel wire through the installation of the torque spring 204 at the rotary connection position of the shaft seat 2 and the supporting arm 201, so as to ensure the squeezing tightness between the squeezing rollers 202 and the steel wire, meanwhile, the supporting arm 201 in elastic rotary connection can automatically adjust the position of the squeezing rollers 202 according to the specification and the size of the steel wire, so that the device is suitable for heat treatment of steel wires with different specifications and thicknesses.

Referring to fig. 5-6, the outer wall of the outer tube 102 is connected with the sliding rods 3 in a vertically symmetrical sliding manner, the left ends of the two sliding rods 3 are respectively welded and fixed with an L-shaped bracket 301 which extends into the inner tube 101, the right end of the L-shaped bracket 301 is fixedly provided with a permanent magnet 302, the two sliding rods 3 are fixedly connected through a connecting plate 303, the left side of the connecting plate 303 is connected with a plurality of extension springs 304 which are fixedly arranged on the outer surface of the outer tube 102, when the device works, the permanent magnet 302 is driven to move rightwards synchronously in the moving process of the steel wire through the magnetic adsorption between the permanent magnet 302 and the steel wire when the steel wire moves to the rear half section of the inner tube 101, and the magnetic adsorption between the permanent magnet 302 and the steel wire is weakened by arranging the elastic connection between the connecting plate 303 and the extension springs 304 because the steel wire loses the magnetic conductivity after the heat treatment in the inner tube 101, under the action of the extension spring 304, the slide rod 3 drives the permanent magnet 302 fixed on the L-shaped bracket 301 to move leftwards and reset, the permanent magnet 302 moving leftwards and the external steel wire without losing magnetic conductivity establish a linkage relationship again, and move along with the steel wire again, and the slide rod 3 can be controlled to move leftwards and rightwards in a reciprocating manner by the disappearance of the magnetic conductivity during the heat treatment of the steel wire.

Referring to fig. 5-8 and 10, a pressing block 305 is fixedly welded on one side of the right end of the sliding rod 3 close to the outer tube 102, a first airbag 4 with a circular ring structure is fixedly installed on the right side of the outer tube 102, and a small air-permeable through hole is uniformly formed in one side of the first airbag 4 close to the squeeze roller 202, annular-structured wrinkles are uniformly formed on the outer surface of the first airbag 4, circular rings for supporting are uniformly fixed on the outer surfaces of the left side and the right side of the first airbag 4, when the device works, the first airbag 4 is squeezed by the pressing block 305 and then compressed, air inside the first airbag is discharged outwards through the small air-permeable through hole, and a blowing operation is performed on the contact part of the squeeze roller 202 on the steel wire, so that broken impurities fall off from the surface of the steel wire, annular wrinkles are uniformly formed on the outer surface of the first airbag 4, and the first airbag 4 can be compressed and deformed along the positions of the wrinkles when being compressed, thereby avoid the outside protrusion of intermediate position of gasbag 4, avoid the inboard of gasbag 4 and the steel wire contact after the heat treatment, stability when effectual the ensuring the device uses supports the restriction to gasbag 4 through being provided with ring fixed mounting in the left and right sides of gasbag 4, the effectual structural stability who ensures when gasbag 4 uses.

Referring to fig. 1, 6 and 10, the pressing block 305 is fixedly installed at the right end of the sliding rod 3, so that the pressing block 305 is driven to perform reciprocating pressing operation on the first air bag 4 when the sliding rod 3 moves left and right in a reciprocating manner, when the first air bag 4 is extruded, air stored in the inner space of the first air bag is blown out to the extrusion roller 202 through the tiny air through holes, and under the driving of air flow, the device is convenient to assist in blowing off impurities on the steel wire, which are extruded by the extrusion roller 202 and loose, and the efficiency of removing the impurities on the surface of the steel wire after heat treatment is effectively improved.

Referring to fig. 10, a large-diameter through hole 401 is formed in the outer surface of the first airbag 4, and a check valve is fixedly installed inside the large-diameter through hole 401, when the device works, when the slide rod 3 moves to drive the press block 305 to move rightwards, the press block 305 loses extrusion on the first airbag 4, the first airbag 4 resets under the elastic support of the first airbag 4, external gas is pumped into the first airbag 4, the large-diameter through hole 401 is formed in the outer surface of the first airbag 4, so that the air input of the first airbag 4 is increased, the inner part of the first airbag 4 can be filled with air rapidly, the first airbag 4 is reset rapidly, the continuity of the first airbag 4 in reciprocating work is ensured, meanwhile, the check valve is installed inside the large-diameter through hole 401, so that only air can be fed into the large-diameter through hole 401, and the air is prevented from being discharged from the large-diameter through hole 401 when the first airbag 4 is compressed, the impact force of the jet air flow at the micro air through hole on the air bag I4 is convenient to guarantee, and the stability of the device for blowing and impurity removal is guaranteed.

Referring to fig. 1 and 4-9, the outer wall of the left end of the outer tube 102 is fixedly provided with the connecting frames 5 which are symmetrical in the front-back direction, and one side of the left end of each connecting frame 5 close to the outer tube 102 is fixedly provided with the second airbag 501, one side of the outer surface of the second airbag 501 close to the permanent magnet 302 is fixedly provided with the spout 502, the left side of the second airbag 501 is fixedly communicated with the feed pipe 503, and the inner part of the feed pipe 503 is fixedly provided with the check valve 504, when the sliding rod 3 moves leftwards, the sliding rod drives the permanent magnet 302 to move leftwards to extrude the second airbag 501, so that the gas in the second airbag 501 is sprayed outwards and is limited by the check valve 504 in the feed pipe 503, so that the gas in the second airbag 501 is blown outwards from the spout 502, and the spout 502 is arranged close to one side of the permanent magnet 302, so that the gas in the second airbag 501 is sprayed on the permanent magnet 302, and the cooling speed of the permanent magnet 302 is increased, when the sliding rod 3 moves rightwards, the permanent magnet 302 loosens the extrusion on the second air bag 501, and the outside air is rapidly filled into the second air bag 501 under the elastic reset action of the second air bag 501, so that the device can conveniently perform the circulating cooling operation on the permanent magnet 302.

Referring to fig. 7-8, the other end of the feeding pipe 503 extends to the interior of the external water tank, the interior of the spout 502 is also provided with a one-way valve, when the device works, if one end of the outer side of the feeding pipe 503 is inserted into the external water tank, the second air bag 501 is extruded, the air in the air bag II is discharged outwards, when the air bag II 501 rebounds and recovers, under the action of air pressure difference, the water in the external water tank enters the air bag II 501 along the feeding pipe 503, by arranging the one-way valve inside the nozzle 502, when the second air bag 501 absorbs water through the feeding pipe 503, the spout 502 is in a closed state, so that the opening of the spout 502 is prevented from affecting the water pumping operation of the second air bag 501, when the second air bag 501 is compressed again to generate deformation, the water absorbed in the permanent magnet 302 is atomized and sprayed on the permanent magnet 302 through the one-way communicated nozzle 502, so that the permanent magnet 302 is rapidly cooled, and the stability of the permanent magnet 302 during continuous work is further enhanced.

Referring to fig. 6 and 11, when the device works, the length of the right end of the sliding rod 3 extending out of the inner tube 101 is matched with the length of the L-shaped bracket 301, so that when the pressing block 305 presses the air bag I4, the L-shaped bracket 301 just starts to synchronously press the air bag II 501, and the consistency of the device is effectively guaranteed.

Referring to fig. 9, a heat insulation ring 505 is fixedly installed between the right sides of the two air bags 501, and the centers of circles of the heat insulation ring 505, the inner tube 101 and the outer tube 102 are all located on the same horizontal straight line, when the device works, the heat insulation ring 505 is isolated between the two air bags 501 and the permanent magnet 302, so as to prevent the permanent magnet 302 from directly contacting with the two air bags 501, and effectively prevent the two air bags 501 from being damaged due to overhigh contact temperature when being extruded by the permanent magnet 302, thereby facilitating the work stability of the device, and meanwhile, the centers of circles of the heat insulation ring 505 and the inner tube 101 are located on the same horizontal straight line, thereby effectively preventing the steel wire from being blocked by the heat insulation ring 505 when passing through the air bags.

The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a steel wire annealing device with automatic edulcoration structure, includes electric heating pipe (1), its characterized in that: an inner pipe (101) is inserted into the inner side of the electric heating pipe (1), an outer pipe (102) fixedly connected with the inner pipe (101) is sleeved on the outer side of the electric heating pipe (1), a plurality of shaft seats (2) are uniformly fixed on the outer wall of the right end of the outer pipe (102) in a surrounding mode, a supporting arm (201) is installed on each shaft seat (2), and the other end of each supporting arm (201) is rotatably connected with an extrusion roller (202);

symmetrical sliding connection has slide bar (3) about the outer wall of outer tube (102), and two the equal welded fastening in left end of slide bar (3) has and probes into L type support (301) to inner tube (101) inside, the right-hand member fixed mounting of L type support (301) has permanent magnet (302), two through connecting plate (303) fixed connection between slide bar (3), the left side of connecting plate (303) is connected with a plurality of extension spring (304) of fixed mounting on outer tube (102) surface, the right-hand member of slide bar (3) is attached in one side fixed welding of outer tube (102) has briquetting (305), the right side fixed mounting of outer tube (102) has gasbag (4) of ring structure, and gasbag (4) are attached in one side of squeeze roll (202) and evenly are seted up tiny ventilative through-hole.

2. The steel wire annealing device with the automatic impurity removing structure according to claim 1, wherein: the electric heating pipe (1) is arranged between the inner pipe (101) and the outer pipe (102) in a spiral structure, and mounting frames are symmetrically fixed on the back surface of the outer pipe (102).

3. The steel wire annealing device with the automatic impurity removing structure according to claim 1, wherein: and elliptical balls (203) protruding outwards are uniformly fixed on the outer surface of the squeezing roller (202) in a surrounding manner.

4. The steel wire annealing device with the automatic impurity removing structure according to claim 1, wherein: the supporting arm (201) is rotatably connected with the shaft seat (2) through a shaft rod, a torsion spring (204) is sleeved on the outer side of the shaft rod, and two ends of the torsion spring (204) are fixedly connected with the shaft seat (2) and the supporting arm (201) respectively.

5. The steel wire annealing device with the automatic impurity removing structure according to claim 1, wherein: the outer surface of the first air bag (4) is uniformly provided with folds with an annular structure, and the outer surfaces of the left side and the right side of the first air bag (4) are uniformly fixed with circular rings for supporting.

6. The steel wire annealing device with the automatic impurity removing structure according to claim 1, wherein: a large-caliber through hole (401) is formed in the outer surface of the first air bag (4), and a check valve is fixedly mounted inside the large-caliber through hole (401).

7. The steel wire annealing device with the automatic impurity removing structure according to claim 1, wherein: fixed mounting has link (5) of symmetry around on the left end outer wall of outer tube (102), and the left end of every link (5) is close to in one side of outer tube (102) equal fixed mounting have gasbag two (501), one side fixed mounting that gasbag two (501) surfaces are close to in permanent magnet (302) has spout (502), the left side fixed intercommunication of gasbag two (501) has inlet pipe (503), the inside fixed mounting of inlet pipe (503) has check valve (504).

8. The steel wire annealing device with the automatic impurity removing structure according to claim 1, wherein: the extension amount of the right end of the sliding rod (3) extending out of the outer side of the inner pipe (101) is matched with the length of the L-shaped support (301).

9. The steel wire annealing device with the automatic impurity removing structure according to claim 7, wherein: the other end of the feeding pipe (503) extends to the inside of an external water tank, and a one-way valve is also arranged inside the spout (502).

10. The steel wire annealing device with the automatic impurity removing structure according to claim 7, wherein: and a heat insulation ring (505) is fixedly installed between the right sides of the two air bags II (501), and the circle centers of the heat insulation ring (505), the inner pipe (101) and the outer pipe (102) are all positioned on the same horizontal straight line.