CN114309097A

CN114309097A - Loop type flux-cored wire drawing machine

Info

Publication number: CN114309097A
Application number: CN202111573408.4A
Authority: CN
Inventors: 唐纪超; 李志�; 刘杰
Original assignee: Guizhou Aerospace Nanhai Technology Co Ltd
Current assignee: Guizhou Aerospace Nanhai Technology Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-04-12
Anticipated expiration: 2041-12-21
Also published as: CN114309097B

Abstract

The invention discloses a loop type flux-cored wire drawing machine, and belongs to the technical field of material drawing equipment. The wire drawing machine comprises a shaping device A, a shaping device B, a plurality of wire drawing devices and a shaping device B which are sequentially arranged from a wire inlet end to a wire outlet end, wherein the shaping device A and the shaping device B adjacent to the shaping device A are used for rounding a flux-cored wire entering the wire drawing machine, and the shaping device B at the wire outlet end of the wire drawing machine is used for rounding a formed flux-cored wire. Rounding the flux-cored wire entering the wire drawing machine through the shaping device A and the shaping device B positioned at the wire inlet end so as to ensure that the flux-cored wire is smoothly and stably drawn by a subsequent wire drawing device; and rounding the outgoing flux-cored wire by a shaping device B positioned at the outgoing line end so as to ensure the quality and consistency of the finished flux-cored wire.

Description

Loop type flux-cored wire drawing machine

Technical Field

The invention relates to a loop type flux-cored wire drawing machine, and belongs to the technical field of material drawing equipment.

Background

The metal wire drawing machine is widely applied to the production and preprocessing treatment of metal products such as steel wires, rope making wires, prestressed wires, standard parts and the like, and aims to enable the diameter, the roundness, the internal metallographic structure, the surface finish and the straightening degree of a wire or a rod to meet the raw material processing requirements required by the production of the metal products such as the standard parts and the like by drawing the wire or the rod which is produced and transported to metal product production enterprises such as the standard parts and the like by a steel product manufacturer, so that the preprocessing quality of the wire or the rod by the wire drawing machine is directly related to the product quality of the metal product production enterprises such as the standard parts and the like. The existing loop wire drawing machine has the disadvantages of slow drawing speed, large drawing force and unstable quality state of produced steel wires.

Therefore, chinese patent publication No. CN110756605A discloses a loop type wire drawing machine, which forms multi-stage drawing by arranging multiple stages of winding drums, wherein each stage of drawing is provided with a die box, the die boxes can lubricate and cool the metal wire, thereby reducing the drawing force of the metal wire between adjacent winding drums, improving the drawing speed and quality, and improving the production efficiency. Each machine table is provided with an independent control system, so that the operation is convenient, the rotating speed and the pressure of each winding drum can be independently adjusted through each machine table, the drawing requirement of each section of metal wire is met, the overall operation is coordinated and stable, and the drawing quality is further ensured.

However, the steel wire outgoing from the forming machine directly enters the wire drawing machine for drawing, and the cross section of the steel wire after coming out of the forming machine is irregular or inconsistent in shape, so that the drawing smoothness and the drawing stability of a first machine and a second machine adjacent to the first machine are seriously reduced; in addition, the steel wire drawn by the wire drawing machine directly goes out, and the quality and consistency of the steel wire are required to be further improved.

Disclosure of Invention

In order to solve the technical problem, the invention provides a loop type flux-cored wire drawing machine.

The invention is realized by the following technical scheme:

the utility model provides a loop formula flux-cored wire drawing machine, includes shaping device A, shaping device B, a plurality of wire drawing device and the shaping device B that set gradually from the inlet wire end to the outlet wire end, shaping device A and rather than adjacent shaping device B are used for rounding the flux-cored wire that gets into the wire drawing machine, the shaping device B of wire drawing machine outlet wire end is used for rounding the shaping flux-cored wire.

The shaping device A comprises a rack A, and a rotary die box, a drawing mechanism and a shock absorption assembly which are arranged on the rack A, wherein the rotary die box and the shock absorption assembly are positioned on the wire inlet side of the drawing mechanism;

the shaping device B comprises a rack B, and a rotary die box, a drawing mechanism, a fixed wheel set, a shock absorption assembly and a driving wheel set which are arranged on the rack B, wherein the rotary die box, the fixed wheel set, the shock absorption assembly and the driving wheel set are positioned on the wire inlet side of the drawing mechanism;

the wire drawing device comprises a rack C, and a drawing mechanism, a fixed wheel set, a powder stirring mould box, a shock absorption component and a driving wheel set which are arranged on the rack C, wherein the fixed wheel set, the powder stirring mould box, the shock absorption component and the driving wheel set are positioned on the wire inlet side of the drawing mechanism.

The drawing mechanism comprises a box body and a winding drum, one end of the box body is opened, the other end of the box body is provided with a motor, an output shaft of the motor penetrates through the box body, and the winding drum is sleeved on the output shaft of the motor and is movably buckled on the box body in an inverted mode.

The motor is a rare earth permanent magnet synchronous motor, a plurality of cooling pipe groups are uniformly distributed in a cavity defined by the winding drum and the box body, the plurality of cooling pipe groups are respectively connected with the box body through supporting plates, each cooling pipe group comprises a spraying pipe and a plurality of spray heads arranged on the spraying pipes side by side, and water outlets of the spray heads point to the inner wall of the winding drum.

The working face of the outer wall of the winding drum is a conical face, the shape and the size gradually shrink from bottom to top, and the taper angle of the conical face is 2-5 degrees.

Decide wheel group including deciding shaft and a plurality of wheel, decide the one end threaded connection of shaft and have base A, the other end can be dismantled and be connected with the end cover, decide epaxial cover of shaft and be equipped with lock nut, and lock nut supports and leans on base A, a plurality of wheels are decided and are put on deciding the shaft through the bearing suit respectively, and decide epaxial cover and be equipped with the axle sleeve between adjacent deciding the wheel, be close to lock nut in a plurality of fixed wheels and can dismantle on deciding the wheel and be connected with the tablet, be connected with proximity switch through the extension board in the position corresponding with the tablet on the base A.

The shock absorption assembly comprises a fixing seat A, a vertical shaft, a clamping plate, a wool felt A and a pressing plate, the vertical shaft is movably connected with the fixing seat A, a knurled screw A is arranged on the fixing seat A in a position corresponding to the vertical shaft, the clamping plate is connected with the vertical shaft in a sliding mode and is perpendicular to the vertical shaft, a knurled screw B is arranged on the vertical shaft in a position corresponding to the clamping plate, and the wool felt A is clamped and fixed on the clamping plate through a fastening piece by the pressing plate.

The driving wheel set comprises a swing arm, a cylinder, a distance sensor and a plurality of driving wheels, a rotating shaft is fixedly arranged at one end of the swing arm, a moving wheel shaft is fixedly arranged at the other end of the swing arm, a fixing seat B is movably sleeved on the rotating shaft, a limiting plate and a reducing cam are installed on the fixing seat B, two stop blocks are arranged at positions corresponding to the limiting plate on the fixing seat B, the distance sensor is arranged at the position corresponding to the reducing cam, a support is connected to one end of the cylinder in a rotating mode, the other end of the cylinder is connected with the middle of the swing arm through a fisheye bearing and a vertical rod, the plurality of driving wheels are sleeved on the moving wheel shaft through bearings respectively, a shaft sleeve is sleeved between adjacent driving wheels on the moving wheel shaft, and an end plate is detachably connected to one end of the moving wheel shaft.

And the wire outlet end of the wire drawing machine is also provided with a wire wiping device.

Wipe a device and include base B, rotatory square frame, gear motor and a plurality of flat mouth duckbilled shower nozzle, gear motor establishes on base B, the one end of rotatory square frame is connected with base B through pivot A and bearing, the other end is through pivot B and shaft coupling and gear motor's output shaft, the one-to-one is equipped with a plurality of pressure head on the both sides board that parallels with pivot A on the rotatory square frame, be equipped with wool felt B on the pressure head, a plurality of flat mouth duckbilled shower nozzles all are located rotatory square frame directly over, and be connected with base B through the support respectively.

The invention has the beneficial effects that:

1. rounding the flux-cored wire entering the wire drawing machine through the shaping device A and the shaping device B positioned at the wire inlet end so as to ensure that the flux-cored wire is smoothly and stably drawn by a subsequent wire drawing device; and rounding the outgoing flux-cored wire by a shaping device B positioned at the outgoing line end so as to ensure the quality and consistency of the finished flux-cored wire.

2. In the drawing process, the flux-cored wire is lubricated and cooled by the rotary die box or the powder stirring die box, the drawing thinning of the flux-cored wire is realized by the die core with the gradually reduced hole diameter in the powder stirring die box, the motor directly drives the winding drum to rotate to provide drawing force, and the winding drum and the flux-cored wire wound on the winding drum are cooled by the cooling pipe group, so that the flux-cored wire is well lubricated and cooled in the drawing process, and the 12-pass drawing at the high speed of 30m/s is realized.

3. Adopt tombarthite PMSM to replace the form of traditional inverter motor + speed reducer + band pulley, directly order about the reel and rotate and provide the drawing force, improved moment of torsion transmission efficiency, tombarthite PMSM adopts the water-cooling mode to cool down, has reduced motor running noise.

4. The tension of the flux-cored wire is adjusted in real time through the air cylinder, so that the phenomenon of wire loosening or wire breaking is prevented; meanwhile, the change of the distance between the variable-diameter cam and the variable-diameter cam is detected through a distance sensor, so that the change of the tension is obtained, the rotating speeds of an upper drawing reel and a lower drawing reel are adjusted and controlled to be matched, the stable drawing of each pass is ensured, and the phenomenon of loosening or breaking of wires is further prevented; the flux-cored wire forms a multi-sheet type loop winding between the moving wheel set and the fixed wheel set, so that the tension adjusting allowance is increased, and the requirement of drawing tension adjustment at high speed is met.

5. The two ends of the wool felt A are clamped and fixed between the clamping plate and the pressing plate through the fasteners, the flux-cored wire penetrates through a hole formed by the wool felt A, and the flux-cored wire is subjected to soft fixation through the wool felt A, so that the phenomenon that the flux-cored wire generates bamboo joint wires and filament wires due to shaking at a high speed is reduced, residual drawing powder on the surface of the flux-cored wire after drawing is erased, and the flux-cored wire is prevented from slipping on the winding drum.

6. The gear motor drives the rotating square frame and each pressure head to rotate to erase the foreign matters such as residual drawing powder on the surface of the flux-cored wire through the wool felt B, and meanwhile, the foreign matters on the surface of the flux-cored wire are thoroughly cleaned through air injection of the flat mouth duckbill nozzle, so that the surface quality of the flux-cored wire is guaranteed.

7. The lower flux-cored wire wound on the winding drum can automatically push the upper flux-cored wire upwards to prolong the stay time of the flux-cored wire on the winding drum, so that the cooling effect of the flux-cored wire is improved, meanwhile, the flux-cored wires are tightly arranged on the winding drum, and the stability of the winding drum in and out of wires is greatly improved.

Drawings

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

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a front view of the rotary die box of the present invention;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is a schematic front view of the drawing mechanism of the present invention;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is a schematic front view of the fixed wheel set of the present invention;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

FIG. 9 is a perspective view of the fixed wheel assembly of the present invention;

FIG. 10 is a schematic structural view of a shock absorbing assembly of the present invention;

FIG. 11 is a front view of the movable wheel assembly of the present invention;

FIG. 12 is a top view of FIG. 11;

FIG. 13 is a cross-sectional view taken along line D-D of FIG. 12;

FIG. 14 is a schematic front view of the filament wiping device of the present invention;

fig. 15 is a top view of fig. 14.

In the figure: 1-shaping device A, 2-shaping device B, 3-wire drawing device, 4-rotary die box, 5-drawing mechanism, 50-box, 51-reel, 52-motor, 53-cooling tube group, 54-support plate, 6-fixed wheel group, 60-base A, 61-fixed wheel shaft, 62-fixed wheel, 63-end cover, 64-approach switch, 65-induction plate, 7-powder stirring die box, 8-shock absorbing component, 80-fixing seat A, 81-knurled screw A, 82-vertical shaft, 83-knurled screw B, 84-clamping plate, 85-pressing plate, 86-fastening piece, 87-wool felt A, 9-movable wheel group, 900-fixing seat B, 901-movable wheel, 902-end plate, 903-an air cylinder, 904-a support, 905-a rotating shaft, 906-a reducing cam, 907-a distance sensor, 908-a limiting plate, 909-a swinging arm, 910-a vertical rod, 911-a moving wheel shaft, 10-a wire wiping device, 100-a base B, 101-a rotating frame, 102-a rotating shaft A, 103-a flat duckbill nozzle, 104-a pressure head, 105-a rotating shaft B, 106-a speed reduction motor.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

As shown in fig. 1 to 15, the flux-cored wire drawing machine of the loop type according to the present invention includes a shaping device a1, a shaping device B2, 9 wire drawing devices 3 and a shaping device B2, which are sequentially disposed from a wire inlet end to a wire outlet end, wherein the shaping device a1 and the shaping device B2 adjacent thereto are used for rounding a flux-cored wire entering the drawing machine, and the shaping device B2 at the wire outlet end of the drawing machine is used for rounding a formed flux-cored wire. When in use, the shaping device A1 and the shaping device B2 positioned at the wire inlet end are used for rounding the flux-cored wire entering the wire drawing machine (namely the steel wire at the wire outlet end of the wire drawing machine) so as to ensure that the flux-cored wire is smoothly and stably drawn by the subsequent wire drawing device 3; and the outgoing flux-cored wire is subjected to rounding treatment by a shaping device B2 positioned at the outgoing line end so as to ensure the quality and consistency of the finished flux-cored wire.

The shaping device A1 comprises a rack A, and a rotary die box 4, a drawing mechanism 5 and a shock absorption component 8 which are arranged on the rack A, wherein the rotary die box 4 and the shock absorption component 8 are positioned on the wire inlet side of the drawing mechanism 5; when in use, the flux-cored wire sequentially passes through the rotary die box 4 and the shock absorption component 8 on the frame A and then is wound on the drawing mechanism 5.

The shaping device B2 comprises a rack B, and a rotary die box 4, a drawing mechanism 5, a fixed wheel set 6, a shock absorption assembly 8 and a driving wheel set 9 which are arranged on the rack B, wherein the rotary die box 4, the fixed wheel set 6, the shock absorption assembly 8 and the driving wheel set 9 are positioned on the wire inlet side of the drawing mechanism 5; when the wire drawing machine is used, the rotating die boxes 4 in the shaping device A1 and the shaping device B2 are used for rounding the flux-cored wire entering the wire drawing machine (namely, the steel wire outgoing from the wire drawing machine) so as to ensure that the flux-cored wire is smoothly and stably drawn by the subsequent wire drawing device 3. The rotary die box 4 adopts a loop rotary die box of a wire drawing machine disclosed in Chinese patent publication No. CN202022421256.3, and is not described herein again for the prior art. Flux-cored wires from the upper computer are firstly wound on the fixed wheel set 6 and the movable wheel set 9 on the rack B, then sequentially pass through the rotary die box 4 and the shock absorption assembly 8, and finally are wound on the drawing mechanism 5.

The wire drawing device 3 comprises a rack C, and a drawing mechanism 5, a fixed wheel set 6, a powder stirring die box 7, a shock absorption assembly 8 and a driving wheel set 9 which are arranged on the rack C, wherein the fixed wheel set 6, the powder stirring die box 7, the shock absorption assembly 8 and the driving wheel set 9 are positioned on the wire inlet side of the drawing mechanism 5. When in use, the powder stirring mold box 7 adopts a mold box disclosed in chinese patent application No. CN201911130270.3, and is prior art and not described herein again. Flux-cored wires from an upper computer are firstly wound on a fixed wheel set 6 and a movable wheel set 9 on a rack C, then sequentially pass through a powder stirring die box 7 and a shock absorption assembly 8, and finally are wound on a drawing mechanism 5.

The drawing mechanism 5 comprises a box body 50 and a winding drum 51, wherein one end of the box body 50 is opened, the other end of the box body 50 is provided with a motor 52, an output shaft of the motor 52 penetrates through the box body 50, and the winding drum 51 is sleeved on the output shaft of the motor 52 and movably buckled on the box body 50 in an inverted mode. When the powder stirring die box 7 is used, the box body 50 is fixedly arranged on a rack, the winding drum 51 is directly driven to rotate by the motor 52 to provide drawing force, and the drawing and thinning (cold drawing plastic deformation) process of the flux-cored wire is realized by the die core with the gradually reduced hole diameter in the powder stirring die box 7. In addition, the rare earth permanent magnet synchronous motor is adopted to replace the traditional variable frequency motor, the speed reducer and the belt wheel, the torque transmission efficiency is improved, the motor with specific power can be customized according to actual transmission parameter requirements, the power waste is small, the energy saving and consumption reduction are realized, the rare earth permanent magnet synchronous motor is cooled in a water cooling mode, and the running noise of the motor is reduced.

The motor 52 is a rare earth permanent magnet synchronous motor, 3 cooling pipe groups 53 are uniformly arranged in a cavity defined by the winding drum 51 and the box body 50, the 3 cooling pipe groups 53 are respectively connected with the box body 50 through support plates 54, each cooling pipe group 53 comprises a spray pipe and a plurality of spray heads arranged on the spray pipes side by side, and water outlets of the spray heads point to the inner wall of the winding drum 51. When the water distribution box is used, a water distribution connector is installed in the box body 50 and connected with each spraying pipe, the water distribution connector is connected with a water pump through a pipeline, and the water pump is connected with a reservoir through a pipeline. During the drawing of the flux-cored wire, water is pumped to the shower pipe and the shower head by a water pump to cool the drum 51 and the flux-cored wire wound on the drum 51.

The working surface of the outer wall of the winding drum 51 is a conical surface, the shape and the size of the conical surface gradually shrink from bottom to top, and the taper angle of the conical surface is 2-5 degrees. When the flux-cored wire is used, the taper angle of the taper surface is 2 degrees, so that the working surface of the winding drum 51 is a small bevel angle of 1 degree, the lower flux-cored wire wound on the winding drum 51 can automatically push up the upper flux-cored wire to prolong the stay time of the flux-cored wire on the winding drum 51, the cooling effect on the flux-cored wire is improved, meanwhile, the flux-cored wires are tightly arranged on the winding drum 51, and the stability of the wire inlet and outlet of the winding drum 51 is greatly improved.

Decide wheelset 6 including deciding

wheel axle

61 and 4 and deciding wheel 62, the one end threaded connection of deciding wheel axle 61 has base A60, the other end can be dismantled and be connected with end cover 63, the cover is equipped with lock nut on deciding wheel axle 61, and lock nut supports and leans on base A60, 4 decide wheel 62 respectively through the bearing suit on deciding wheel axle 61, and the cover is equipped with the axle sleeve between adjacent deciding wheel 62 on deciding

wheel axle

61, 4 decide and can dismantle on the wheel 62 that is close to lock nut among the wheel 62 and be connected with tablet 65, there is proximity switch 64 at the position corresponding with tablet 65 on the base A60 through the extension board connection. When the locking device is used, the base A60 is fixedly installed on the rack, the locking nut is loosened, the fixed wheel shaft 61 is rotated relative to the base A60, the installation height of the fixed wheel 62 relative to the rack can be adjusted, and after the installation height of the fixed wheel 62 is determined, the locking nut is rotated to enable the locking nut to abut against the base A60, so that the fixed wheel shaft 61 is locked and fixed.

The shock absorption assembly 8 comprises a fixed seat A80, a vertical shaft 82, a clamping plate 84, a wool felt A87 and a pressing plate 85, wherein the vertical shaft 82 is movably connected with the fixed seat A80, a knurled screw A81 is in threaded connection with the fixed seat A80 at a position corresponding to the vertical shaft 82, the clamping plate 84 is in sliding connection with the vertical shaft 82 and is perpendicular to the vertical shaft 82, a knurled screw B83 is in threaded connection with the vertical shaft 82 at a position corresponding to the clamping plate 84, and the wool felt A87 is clamped and fixed on the clamping plate 84 by the pressing plate 85 through a fastener 86. When the wool felt type wire clamp is used, the two ends of the wool felt A87 are clamped and fixed between the clamping plate 84 and the pressing plate 85 through the fasteners, the flux-cored wire penetrates through a hole surrounded by the wool felt A87, the wool felt A87 is used for carrying out soft fixation on the flux-cored wire to realize shock resistance, and foreign matters on the surface of the flux-cored wire are wiped off. The fastener comprises a bolt and a wing nut.

The movable wheel set 9 comprises a swing arm 909, an air cylinder 903, a

distance sensor

907 and 3 movable wheels 901, a rotating shaft 905 is fixedly installed at one end of the swing arm 909, a movable wheel shaft 911 is fixedly installed at the other end of the swing arm 909, a fixed seat B900 is movably sleeved on the rotating shaft 905, a limiting plate 908 and a reducing cam 906 are fixedly sleeved on the fixed seat B900, two stoppers are installed on the fixed seat B900 at positions corresponding to the limiting plate 908, the distance sensor 907 is installed at positions corresponding to the reducing cam 906, a support 904 is rotatably connected to one end of the air cylinder 903, the other end of the air cylinder 903 is connected with the middle of the swing arm 909 through a fisheye bearing and a

vertical rod

910, 3 movable wheels 901 are respectively sleeved on the movable wheel shaft 911 through bearings, a shaft sleeve is sleeved between adjacent movable wheels 901 on the movable wheel shaft 911, and an end plate 902 is detachably connected to one end of the movable wheel shaft 911. In use, the flux-cored wire is wound around the uppermost fixed wheel 62 in the fixed wheel set 6, then wound around the uppermost movable wheel 901 in the movable wheel set 9, and then wound around the second fixed wheel 62 in the fixed wheel set 6, so that the flux-cored wire is alternately wound on the fixed wheel 62 and the movable wheel 901. The fixed seat B900 is fixedly arranged on a rack, the air cylinder 903 drives the swing arm 909 to swing around the central axis of the rotating shaft 905 through a fisheye bearing and the upright rod 910, and the position of the moving wheel 901 is adjusted to adjust the tension of the flux-cored wire in real time so as to prevent the phenomenon of loosening or breaking the wire; meanwhile, the change of the distance between the variable diameter cam 906 and the variable diameter cam is detected through the distance sensor 907, so that the change of the tension is obtained, the rotating speed matching of the upper drawing reel 51 and the lower drawing reel 51 is adjusted and controlled, the stable drawing of each pass is ensured, and the phenomenon of loosening or breaking of the wire is further prevented. The flux-cored wire forms a multi-sheet type loop winding between the moving wheel set 9 and the fixed wheel set 6, and the tension adjusting allowance is increased. Further, the two stoppers are engaged with the stopper plate 908, thereby mechanically restricting the back-and-forth swing angle of the swing arm 909.

And the wire outlet end of the wire drawing machine is also provided with a wire wiping device 10.

Wipe silk device 10 including base B100, rotatory frame 101, gear motor 106 and two flat mouth duckbilled shower nozzles 103, gear motor 106 installs on base B100, the one end of rotatory frame 101 is connected with base B100 through pivot A102 and bearing, the other end is connected with the output shaft of gear motor 106 through pivot B105 and shaft coupling, a plurality of pressure heads 104 are installed to the one-to-one on the both sides board that parallels with pivot A102 on the rotatory frame 101, install wool felt B on the pressure head 104, two flat mouth duckbilled shower nozzles 103 all are located rotatory frame 101 directly over, and be connected with base B100 through the support respectively. When the welding machine is used, the output shaft of the speed reducing motor 106, the rotating shaft B105 and the rotating shaft A102 are coaxially processed with wire passing holes for the flux-cored welding wire to pass through. The pressure head 104 comprises a seat cover and an I-shaped block, one end of the I-shaped block is positioned in the seat cover, is in sliding connection with the inner wall of the seat cover and is connected with the bottom of the seat cover through a spring, the middle part of the I-shaped block is in sliding connection with the seat cover, the other end of the I-shaped block is positioned outside the seat cover, and the wool felt B is arranged on the end face of the end. In the process of drawing the flux-cored wire, the felted wool B on the I-shaped blocks in one-to-one correspondence is abutted against the surface of the flux-cored wire under the action of the spring, the speed reducing motor 106 drives the rotating square frame 101 and the pressure heads 104 to rotate, so that the residual foreign matters such as drawing powder on the surface of the flux-cored wire are wiped away through the felted wool B, meanwhile, the foreign matters on the surface of the flux-cored wire are thoroughly cleaned through air injection of the flat mouth duckbilled nozzle 103, and the surface quality of the flux-cored wire is ensured.

Specifically, the wire drawing machine further comprises a controller, and the controller is electrically connected with the motor, the rare earth permanent magnet synchronous motor, the water pump, the proximity switch 64, the electromagnetic valve of the control cylinder 903, the distance sensor 907, the speed reduction motor 106 and the like in the rotary die box 4 so as to integrally control the wire drawing machine.

The loop type flux-cored wire drawing machine provided by the invention has the following beneficial effects:

1. rounding the flux-cored wire entering the wire drawing machine through the shaping device A1 and the shaping device B2 positioned at the wire inlet end so as to ensure that the flux-cored wire is smoothly and stably drawn by the subsequent wire drawing device 3; and the outgoing flux-cored wire is subjected to rounding treatment by a shaping device B2 positioned at the outgoing line end so as to ensure the quality and consistency of the finished flux-cored wire.

2. In the drawing process, the flux-cored wire is lubricated and cooled by rotating the die box 4 or stirring the powder die box 7, the drawing thinning of the flux-cored wire is realized by the die core with the gradually reduced bore diameter in the stirring die box 7, the winding drum 51 is directly driven by the motor 52 to rotate to provide drawing force, and the winding drum 51 and the flux-cored wire wound on the winding drum 51 are cooled by the cooling pipe group 53, so that the flux-cored wire is well lubricated and cooled in the drawing process, and the high-speed 12-pass drawing of 30m/s is realized.

3. Adopt tombarthite PMSM to replace the form of traditional inverter motor + speed reducer + band pulley, directly order about reel 51 to rotate and provide the drawing force, improved moment of torsion transmission efficiency, tombarthite PMSM adopts the water-cooling mode to cool down, has reduced motor running noise.

4. The tension of the flux-cored wire is adjusted in real time through the air cylinder 903, so that the phenomenon of wire loosening or wire breaking is prevented; meanwhile, the change of the distance between the variable diameter cam 906 and the variable diameter cam is detected through the distance sensor 907, so that the change of the tension is obtained, the rotating speed matching of the upper drawing reel 51 and the lower drawing reel 51 is adjusted and controlled, the stable drawing of each pass is ensured, and the phenomenon of loosening or breaking of the wire is further prevented; the flux-cored wire forms a multi-sheet type loop winding between the moving wheel set 9 and the fixed wheel set 6, so that the tension adjusting allowance is increased, and the requirement of drawing tension adjustment at high speed is met.

5. The two ends of the wool felt A87 are clamped and fixed between the clamping plate 84 and the pressing plate 85 through the fasteners, the flux-cored wire penetrates through a hole surrounded by the wool felt A87, and the wool felt A87 is used for carrying out soft fixation on the flux-cored wire, so that the phenomena that bamboo joint wires and filament wires are generated due to shaking of the flux-cored wire at a high speed are reduced, residual drawing powder on the surface of the flux-cored wire after drawing is erased, and the flux-cored wire is prevented from slipping on the winding drum 51.

6. The speed reducing motor 106 drives the rotating frame 101 and each pressure head 104 to rotate, so that foreign matters such as residual drawing powder on the surface of the flux-cored wire can be wiped off through the wool felt B, meanwhile, the flat mouth duckbill nozzle 103 sprays air to thoroughly clean the foreign matters on the surface of the flux-cored wire, and the surface quality of the flux-cored wire is guaranteed.

7. The lower flux-cored wire wound on the winding drum 51 can automatically push the upper flux-cored wire upwards to prolong the stay time of the flux-cored wire on the winding drum 51, so that the cooling effect of the flux-cored wire is improved, meanwhile, the flux-cored wires are tightly arranged on the winding drum 51, and the stability of the wire inlet and outlet of the winding drum 51 is greatly improved.

Claims

1. The utility model provides a loop formula flux cored wire drawing machine which characterized in that: the wire drawing machine comprises a shaping device A (1), a shaping device B (2), a plurality of wire drawing devices (3) and a shaping device B (2), wherein the shaping device A (1), the shaping device B (2), the wire drawing devices and the shaping device B (2) which are adjacent to the shaping device A (1) are used for rounding a flux-cored wire which enters a wire drawing machine, and the shaping device B (2) at the wire outlet end of the wire drawing machine is used for rounding a formed flux-cored wire.

2. The looping type flux cored wire drawing machine of claim 1, wherein: the shaping device A (1) comprises a rack A, and a rotary die box (4), a drawing mechanism (5) and a shock absorption assembly (8) which are arranged on the rack A, wherein the rotary die box (4) and the shock absorption assembly (8) are positioned on the wire inlet side of the drawing mechanism (5);

the shaping device B (2) comprises a rack B, and a rotary die box (4), a drawing mechanism (5), a fixed wheel set (6), a shock absorption assembly (8) and a driving wheel set (9) which are arranged on the rack B, wherein the rotary die box (4), the fixed wheel set (6), the shock absorption assembly (8) and the driving wheel set (9) are positioned on the wire inlet side of the drawing mechanism (5);

the wire drawing device (3) comprises a rack C, and a drawing mechanism (5), a fixed wheel set (6), a powder stirring mold box (7), a shock absorption assembly (8) and a driving wheel set (9) which are arranged on the rack C, wherein the fixed wheel set (6), the powder stirring mold box (7), the shock absorption assembly (8) and the driving wheel set (9) are positioned on the wire feeding side of the drawing mechanism (5).

3. The looping type flux cored wire drawing machine of claim 2, wherein: the drawing mechanism (5) comprises a box body (50) and a winding drum (51), one end of the box body (50) is opened, a motor (52) is arranged at the other end of the box body (50), an output shaft of the motor (52) penetrates through the box body (50), and the winding drum (51) is sleeved on the output shaft of the motor (52) and movably and reversely buckled on the box body (50).

4. The looping type flux cored wire drawing machine of claim 3, wherein: the motor (52) is a rare earth permanent magnet synchronous motor; a plurality of cooling pipe groups (53) are uniformly distributed in a cavity defined by the winding drum (51) and the box body (50), and the plurality of cooling pipe groups (53) are respectively connected with the box body (50) through support plates (54); the cooling pipe group (53) comprises a spray pipe and a plurality of spray heads arranged on the spray pipe side by side, and water outlets of the spray heads point to the inner wall of the winding drum (51).

5. The looping type flux cored wire drawing machine of claim 3, wherein: the working surface of the outer wall of the winding drum (51) is a conical surface, the shape and the size of the working surface gradually shrink from bottom to top, and the taper angle of the conical surface ranges from 2 degrees to 5 degrees.

6. The looping type flux cored wire drawing machine of claim 2, wherein: decide wheelset (6) including deciding shaft of a wheel (61) and a plurality of decide wheel (62), the one end threaded connection of deciding shaft of a wheel (61) has base A (60), the other end can be dismantled and be connected with end cover (63), the cover is equipped with lock nut on deciding shaft of a wheel (61), and lock nut supports and leans on base A (60), a plurality of decide wheel (62) are respectively through bearing suit on deciding shaft of a wheel (61), and decide that the cover is equipped with the axle sleeve between adjacent decide wheel (62) on shaft (61), be close to lock nut in a plurality of decide wheel (62) and go up to dismantle on deciding wheel (62) and be connected with tablet (65), there is proximity switch (64) through the extension board in base A (60) the position corresponding with tablet (65).

7. The looping type flux cored wire drawing machine of claim 2, wherein: the shock absorption assembly (8) comprises a fixing seat A (80), a vertical shaft (82), a clamping plate (84), a wool felt A (87) and a pressing plate (85), the vertical shaft (82) is movably connected with the fixing seat A (80), a knurled screw A (81) is arranged on the fixing seat A (80) in a position corresponding to the vertical shaft (82), the clamping plate (84) is in sliding connection with the vertical shaft (82) and is perpendicular to the vertical shaft (82), a knurled screw B (83) is arranged on the vertical shaft (82) in a position corresponding to the clamping plate (84), and the pressing plate (85) clamps and fixes the wool felt A (87) on the clamping plate (84) through a fastener (86).

8. The looping type flux cored wire drawing machine of claim 2, wherein: the movable wheel set (9) comprises a swing arm (909) and a cylinder (903), distance sensor (907) and a plurality of driving wheel (901), the fixed pivot (905) that is equipped with in one end of swing arm (909), other end fixed is equipped with movable wheel axle (911), movable sleeve is equipped with fixing base B (900) on pivot (905), fixed cover is equipped with limiting plate (908) and reducing cam (906), be equipped with two dogs in the position corresponding with limiting plate (908) on fixing base B (900), distance sensor (907) are established in the position corresponding with reducing cam (906), the one end of cylinder (903) is rotated and is connected with support (904), the other end is connected with the middle part of swing arm (909) through fisheye bearing and pole setting (910), a plurality of driving wheel (901) are respectively through bearing kit on movable wheel axle (911), the cover is equipped with the axle sleeve between adjacent driving wheel (901) on movable wheel axle (911), and the one end of movable wheel axle (911) can be dismantled and be connected with end plate 902.

9. The looping type flux cored wire drawing machine of claim 1, wherein: the wire outlet end of the wire drawing machine is also provided with a wire wiping device (10).

10. The looping type flux cored wire drawing machine of claim 9, wherein: wipe silk device (10) including base B (100), rotatory frame (101), gear motor (106) and a plurality of flat mouth duckbilled shower nozzle (103), gear motor (106) are established on base B (100), the one end of rotatory frame (101) is passed through pivot A (102) and bearing and is connected with base B (100), the other end passes through the output shaft of pivot B (105) and shaft coupling and gear motor (106), on rotatory frame (101) with the both sides board that pivot A (102) paralleled on the one-to-one be equipped with a plurality of pressure head (104), be equipped with wool felt B on pressure head (104), a plurality of flat mouth duckbilled shower nozzle (103) all are located rotatory frame (101) directly over, and be connected with base B (100) through the support respectively.