CN116140390A

CN116140390A - Wire drawing machine and wire drawing process

Info

Publication number: CN116140390A
Application number: CN202310049333.2A
Authority: CN
Inventors: 仇磊; 翟文修; 崔华; 杨佳华; 徐波
Original assignee: Zibo Aike Industrial And Mining Machinery Co ltd
Current assignee: Zibo Aike Industrial And Mining Machinery Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-05-23

Abstract

The invention relates to a wire drawing machine and a wire drawing process, wherein a plurality of dies with different specifications in the wire drawing machine are arranged in a die mounting box at intervals in a row. And a wire drawing wheel and a traction device are sequentially arranged at one end of the die mounting box, which is positioned at the die outlet. The wire drawing wheel comprises areas with different diameters, and the traction device comprises a motor, a rotating rod and a baffle disc. The cross-sectional shape of dwang be the polygon, the one end towards the round bar of fender dish is fixed with the support cover, the support cover is established on the bull stick, supporting platform epirelief is equipped with splint, splint upper end and the open arrangement of one end that deviates from the motor, splint inside card is equipped with the support frame, the round bar rotating turret is located the support frame top. According to the wire drawing machine, a plurality of wire drawing wheels which are arranged at intervals in the prior art are replaced by the round table-shaped wire drawing wheels, so that the space is saved, and the utilization rate of a factory is improved.

Description

Wire drawing machine and wire drawing process

Technical Field

The invention belongs to a wire drawing machine, and particularly relates to a wire drawing machine and a wire drawing process.

Background

Wire drawing machines, also known as wire drawing machines, are widely used in industry to elongate wire to reduce its diameter by cold drawing.

The working principle of the wire drawing machine is that the wire is wound on the wire drawing wheel after passing through the die of the wire drawing machine, when the traction wheel and the winding wheel operate, the winding wheel operates to provide traction force for the steel wire, and the metal wire is wound through the wire drawing wheel under the action of the traction force, so that the metal wire passes through the wire drawing die, and the thickness of the metal wire is continuously changed from thick to thin, so that the metal wires with different wire gauges are obtained.

In order to make the thickness of the wire more variable, pulley-type wire drawing machines are widely used in industry, and several wire drawing wheels are arranged on a workbench at intervals. A wire drawing die is arranged between two adjacent wire drawing wheels, and the inner diameter between the two adjacent wire drawing dies is gradually changed. The metal wire sequentially passes through each die, the deformation amount of each time is controllable, and the final product is obtained through multiple deformations.

The pulley-type wire drawing machine has the advantage that the wire is subjected to a plurality of deformations, so that the traction force required for each deformation is lower. The disadvantage is that a plurality of independent wire drawing wheels are required to be arranged, firstly, the length of the whole wire drawing machine is prolonged, and more factory space is occupied; secondly, the rotation speeds of the wire drawing wheels need to be coordinated, so that the wire drawing machine needs to be additionally provided with an auxiliary speed change mechanism.

Disclosure of Invention

The invention aims to solve the technical problems that: the invention provides a wire drawing machine and a wire drawing process, which overcomes the defects of the prior art, and the wire drawing machine replaces a plurality of wire drawing wheels which are arranged at intervals in the prior art by a round table-shaped wire drawing wheel, so that the space is saved, and the utilization rate of a factory is improved.

The invention solves the problems existing in the prior art by adopting the technical scheme that:

the wire drawing machine comprises a die, and a plurality of dies with different specifications are arranged in a die mounting box at intervals.

And a wire drawing wheel and a traction device are sequentially arranged at one end of the die mounting box, which is positioned at the die outlet.

The wire drawing wheel include the region of different diameters, wire drawing wheel below is equipped with the second leading wheel, the one end that the mould mounting box was located the mould entry is equipped with the third leading wheel.

The traction device comprises a motor, a rotating rod and a baffle disc.

The section shape of the rotating rod is polygonal, one end of the rotating rod is connected with the output shaft of the motor, and the other end of the rotating rod is coaxially fixed with a round rod.

One end of the baffle disc, which faces the round rod, is fixed with a supporting sleeve, the supporting sleeve is sleeved on the rotating rod, one end of the supporting sleeve, which faces away from the baffle disc, is provided with a threaded part, and the threaded part is connected with a nut disc in a threaded way.

The die mounting box, the wire drawing wheel, the second guide wheel, the third guide wheel and the motor are fixedly connected with the supporting platform below.

The supporting platform is convexly provided with a clamping plate, the upper end of the clamping plate and one end deviating from the motor are arranged in an open mode, a supporting frame is arranged in the clamping plate in a clamping mode, and the round rod rotating frame is arranged above the supporting frame.

Preferably, a through wire drawing channel is arranged in the middle of the die, an annular cooling cavity is sleeved outside the wire drawing channel, a through hole is connected outside the cooling cavity in a through mode, and a clamping ring is arranged on the circumferential surface of the die in a protruding mode.

The die mounting box comprises a lower box body and an upper box body, wherein a plurality of lower semicircular water cavities are concaved in the top surface of the lower box body, water inlets are connected to the bottoms of the lower semicircular water cavities in a penetrating mode, water inlets which are connected with the water inlets in a penetrating mode are arranged on the outer wall of the lower box body, and first clamping grooves are concavely formed in the outer sides of the lower semicircular water cavities.

The upper box body cover is arranged above the lower box body, an upper semicircular water cavity is concavely arranged on the bottom surface of the upper box body, the upper semicircular water cavity is correspondingly arranged with the lower semicircular water cavity, a water outlet channel is connected with the top of the upper semicircular water cavity in a penetrating way, a water outlet connector connected with the water outlet channel in a penetrating way is arranged on the outer wall of the upper box body, and a clamping groove is concavely arranged on the bottom surface of the upper box body, and corresponds to the first clamping groove.

The die is arranged between the lower semicircular water cavity and the upper semicircular water cavity, and the through hole is in through connection with the lower semicircular water cavity and the upper semicircular water cavity.

The clamping ring is clamped with the first clamping groove and the inside of the clamping groove on the bottom surface of the upper box body.

Preferably, the die comprises an outer die and an inner die, wherein the outer die is sleeved outside the inner die, and the outer die and the inner die are different in material.

The cooling cavity, the through hole and the clamping ring are arranged on the outer die.

The wire drawing channel is coaxially arranged on the inner die.

Preferably, the wire drawing wheel is in a round table shape, a plurality of partition plates are sleeved on the circumferential surface of the wire drawing wheel, and the number of the areas spaced between the partition plates is the same as that of the dies.

Preferably, a gear box is arranged between the rotating rod and the motor, two first gears and two second gears which are connected in a meshed manner are arranged in the same vertical plane in the box body of the gear box, the first gears are coaxially fixed with first half gears, and the second gears are coaxially fixed with second half gears.

The first half gear has the same number of teeth as the second half gear.

A third gear is arranged between the first half gear and the second half gear, and the third gear is connected with the first half gear and the second half gear in a meshing way at intervals.

The rotating rod is coaxially and fixedly connected with the first half gear or the second half gear, and the motor output shaft is coaxially and fixedly connected with the first gear or the second gear.

And one side of the third gear, which faces the rotating rod, is coaxially and fixedly connected with a screw rod, a nut sleeve in threaded connection with the screw rod is sleeved on the screw rod, a second clamping groove is formed in the nut sleeve, and the edge of the baffle disc is clamped inside the second clamping groove.

The nut sleeve is penetrated with a guide rod, and two ends of the guide rod are connected with the supporting platform.

Preferably, a wiredrawing lubricant smearing box is arranged between the die mounting box and the third guide wheel.

The wiredrawing lubricant smearing box comprises a middle box body and liquid receiving boxes which are arranged at two sides of the middle box body.

The middle box body is provided with a plurality of threading holes which are correspondingly arranged with the wire drawing channels of the die.

The liquid return hole is arranged below the threading hole, the upper end of the liquid receiving box is arranged in an open mode, the liquid receiving box is located between the threading hole and the liquid return hole, and a return pipe is connected between the liquid discharge hole on the bottom surface of the liquid receiving box and the liquid return hole in a penetrating mode.

The bottom inside the middle box body is provided with a plurality of elastic air bags, and the supporting platform is fixedly provided with an air supply device which is in through connection with the elastic air bags.

Preferably, the elastic air bags are connected through a connecting air passage, a main air inlet and outlet pipe connected with the elastic air bags at the end parts is arranged outside the middle box body, and the main air inlet and outlet pipe is connected with the air supply device.

Preferably, the air supply device adopts a piston type air cylinder, and the driving device drives the piston of the air cylinder to reciprocate.

Preferably, one end of the wiredrawing lubricant smearing box, which is away from the die mounting box, is rotationally provided with a rotating rod.

The support sleeve is sleeved on the rotating rod, one end of the support sleeve is fixedly provided with a baffle disc, one end of the support sleeve, which is away from the baffle disc, is provided with a threaded part, and the threaded part is connected with a nut disc in a threaded manner.

The wire drawing process comprises the following steps:

A. sleeving a paying-off roller wound with a metal wire on a supporting sleeve at a paying-off end, then tightening a nut, and clamping the paying-off roller between the nut and a baffle disc;

B. taking out the free end of the metal wire, shaping the free end, passing through a wire drawing channel of a first die, manually drawing, winding the wire drawing channel on a wire drawing wheel, winding at least one circle, guiding the wire drawing wheel by a second guiding wheel and a third guiding wheel, and passing through another die adjacent to the previous die;

C. repeating the step B until the wire gauge of the penetrated metal wire meets the requirement;

D. the free end of the final wire is guided by a second guide wheel and wound on a winding roller. The winding roller is sleeved on the supporting sleeve at the traction end;

E. and starting the motor to provide traction for wire drawing.

Compared with the prior art, the invention has the beneficial effects that:

(1) The plurality of wire drawing wheels which are arranged at intervals in the prior art are replaced by the wire drawing wheel in the shape of the circular truncated cone, so that the space is saved, and the utilization rate of a factory is improved.

(2) Before wire drawing, the wire is automatically coated with the wire drawing lubricant through the wire drawing lubricant coating box, so that the traction force required by wire drawing is reduced.

(3) The die mounting box can cool the die in a water-cooling mode, maintain the temperature of the die and optimize the wire drawing effect.

(4) The die adopts an inner layer and an outer layer, the outer die and the inner die can be made of different materials, and the cost is reduced under the condition of ensuring the use effect. Meanwhile, the outer mold can be used for manufacturing a water cavity for cooling the inner mold, so that the cooling effect of the inner mold is optimized.

Drawings

The invention will be further described with reference to the drawings and examples.

Figure 1 is an outline view of the wire drawing machine of the present invention,

figure 2 is a top view of the drawing machine of the present invention,

figure 3 is a front view of the wire drawing machine of the present invention,

figure 4 is a view showing the external appearance of the die-mounting box of the wire drawing machine,

figure 5 is an exploded view of figure 4,

figure 6 is a first cross-sectional view of figure 4,

figure 7 is a second cross-sectional view of figure 4,

figure 8 is a cross-sectional view of a die of a wire drawing machine of the present invention,

figure 9 is a drawing of the drawing end of the drawing machine of the present invention,

figure 10 is an effect diagram of figure 9 with the cabinet removed,

figure 11 is a backside view of figure 10,

figure 12 is a drawing of the paying-off end of the wire drawing machine of the present invention,

figure 13 is an effect diagram of figure 12 with the cabinet removed,

figure 14 is a back side view of figure 13,

figure 15 is an exterior view of the wiredrawing lubricant application cartridge of the present invention,

figure 16 is a first cross-sectional view of figure 15,

figure 17 is a second cross-sectional view of figure 15,

figure 18 is a schematic view of the wiredrawing lubricant application cartridge of the present invention after the check valve is opened,

figure 19 is a schematic view of the wiredrawing lubricant application cartridge of the present invention after the check valve is closed,

fig. 20 is an exploded view of the wire roll mounting of the present invention.

In the figure: 1-die, 101-outer die, 1011-cooling cavity, 1012-through hole, 1013-snap ring, 102-inner die, 1021-wire drawing channel, 2-die mounting box, 201-lower box, 2011-lower semicircular water cavity, 2012-water inlet channel, 2013-water inlet joint, 2014-first clamping groove, 202-upper box, 2021-upper semicircular water cavity, 2022-water outlet channel, 2023-water outlet joint, 3-first guide wheel, 4-wire drawing wheel, 401-partition, 5-second guide wheel, 6-gear box, 601-first gear, 602-first half gear, 603-second gear, 604-second half gear, 605-third gear, 606-first pulley, 7-rotating rod, 701-round rod 8-catch tray, 801-support sleeve, 802-nut tray, 9-screw, 901-nut sleeve, 902-second clamping groove, 10-winding roller, 11-support frame, 12-unwinding roller, 13-third guiding wheel, 14-fourth guiding wheel, 15-wiredrawing lubricant applying box, 1501-middle box body, 15011-threading hole, 15012-liquid return hole, 1502-upper cover, 1503-liquid receiving box, 1504-elastic air bag, 15041-connecting air channel, 15042-total air inlet and outlet pipe, 1505-return pipe, 1506-check valve, 15061-valve body, 15062-upper limit bump, 15063-valve plate, 15064-triangular block, 16-motor, 17-cylinder, 1701-rack, 1702-air pipe, 18-driving gear, 1801-a second belt pulley, a 19-synchronous belt, a 20-supporting platform and a 2001-clamping plate.

Detailed Description

Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The wire drawing machine and the wire drawing process according to the present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited thereto.

The wire drawing machine comprises a die 1, and a plurality of dies 1 with different specifications are arranged in a die mounting box 2 at intervals.

The middle of the die 1 is provided with a through wire drawing channel 1021, the wire drawing channel of each die 1 is different in size, the inner diameter of the outlet of the wire drawing channel 1021 of the adjacent die 1 is sequentially reduced, and the inner diameter of the inlet of the wire drawing channel 1021 of the next die 1 is the same as the inner diameter of the outlet of the wire drawing channel 1021 of the previous die 1.

An annular cooling cavity 1011 is sleeved outside the drawing channel 1021, a through hole 1012 is connected with the outer side of the cooling cavity 1011 in a penetrating way, and a clamping ring 1013 is arranged on the circumferential surface of the die 1 in a protruding way.

In this embodiment, in order to reduce the cost of the mold 1 on the premise of ensuring the use effect, the mold 1 includes an outer mold 101 and an inner mold 102, where the outer mold 101 is sleeved outside the inner mold 102, and the two materials are different.

The cooling cavity 1011, the through hole 1012 and the clamping ring 1013 are arranged on the outer mold 101, and the drawing channel 1021 is coaxially arranged on the inner mold 102.

In order to improve the firmness between the inner die 102 and the outer die 101, the two ends of the inner die 102 are convexly provided with positioning rings, the two ends of the outer die 101 are internally provided with corresponding clamping grooves in a concave manner, and the positioning rings are clamped in the clamping grooves.

Meanwhile, in order to facilitate production and installation, the outer mold 101 is made into a split type and is equally divided into two semicircular rings, and after the inner mold 102 is installed in place, the inner mold is fixedly connected in a bolt or welding mode.

The main function of the mold mounting box 2 is to fix the mold 1 and cool the mold 1. The die mounting box 2 comprises a lower box body 201 and an upper box body 202, wherein the upper box body 202 is covered above the lower box body 201, and the contact surfaces of the upper box body and the lower box body are coated with sealant and fixedly connected through bolts.

The top surface of the lower box body 201 is internally provided with a plurality of lower semicircular water cavities 2011 in a concave manner, water inlet channels 2021 are connected to the bottoms of the lower semicircular water cavities 2011 in a through manner, water inlet connectors 2013 connected to the water inlet channels 2021 in a through manner are arranged on the outer wall of the lower box body 201, and first clamping grooves 2014 are formed in the outer side of the lower semicircular water cavities 2011 in a concave manner.

An upper semicircular water cavity 2021 is concaved in the bottom surface of the upper box body 202, the upper semicircular water cavity 2021 and the lower semicircular water cavity 2011 are correspondingly arranged, a water outlet channel 2022 is connected to the top of the upper semicircular water cavity 2021 in a penetrating manner, a water outlet connector 2023 connected to the water outlet channel 2022 in a penetrating manner is arranged on the outer wall of the upper box body 202, and a clamping groove corresponding to the first clamping groove 2014 is concaved in the bottom surface of the upper box body 202.

The mold 1 is disposed between the lower semicircular water chamber 2011 and the upper semicircular water chamber 2021, and the through hole 1012 is connected with the lower semicircular water chamber 2011 and the upper semicircular water chamber 2021.

The clamping ring 1013 is clamped with the first clamping groove 2014 and the inside of the clamping groove on the bottom surface of the upper box 202. The snap rings 1013 play a role in fixing and sealing, so in this embodiment, two snap rings 1031 are provided on each mold 1, and the two snap rings 1031 are located on two sides of the through hole 1012 respectively. The lower semicircular water cavity 2011 and the upper semicircular water cavity 2021 are combined to form a complete circular through hole, so that threading of the drawing channel 1021 is not affected.

The water inlet joint 2013 and the water outlet joint 2023 are respectively connected with a water inlet pipe and a water return pipe of an external cooling water circulation system, the external cooling water circulation system adopts the prior art and comprises a cooling water tank, a water supply pump, a cooler and a connecting pipeline, and the cooler can adopt an air cooler.

The die mounting box 2 both sides are traction end and unwrapping wire end respectively, and die mounting box 2 is located the one end of die 1 export and is traction end, has arranged wire drawing wheel 4 and draw gear in proper order, and draw gear is traction end, provides traction for the wire drawing.

The wire drawing wheel 4 comprises areas with different diameters, in the embodiment, the wire drawing wheel 4 is in a round table shape, a plurality of baffle plates 401 are sleeved on the circumferential surface of the wire drawing wheel 4, the number of the areas spaced between the baffle plates 401 is the same as that of the dies 1, and metal wires penetrating out of the corresponding dies 1 are wound in the corresponding spaced areas.

The second guide wheel 5 is arranged below the wire drawing wheel 4, and a third guide wheel 13 is arranged at one end of the die mounting box 2, which is positioned at the inlet of the die 1.

In the use process, after the metal wire passes through one die 1, the diameter is reduced, the length is prolonged, then the metal wire is wound on the wire drawing wheel 4 for at least one circle, and is inserted into the next die 1 after being guided by the second guide wheel 5 and the third guide wheel 13, the diameter of the metal wire is continuously reduced, the length is longer, and then the metal wire is wound on the wire drawing wheel 4. Because the length side length is long, the diameter of the wire drawing wheel 4 corresponding to the position where the wire drawing wheel 4 is wound is larger than the diameter of the wire drawing wheel 4 at the last winding position, so that the problem that the rotating speed of the wire drawing wheel 4 is unchanged through the diameter change of the wire drawing wheel 4 can be solved, but the linear speeds of all the positions are different, and the wire drawing wheel is used for corresponding to wires with different diameters, so that the synchronization is effectively realized.

In order to make the metal wire in and out of the die 1 in a straight state, in this embodiment, a first guide wheel 3 is added between the die 1 and the wire drawing wheel 4, and a fourth guide wheel 14 is added above the third guide wheel 13. The first guide wheel 3 and the fourth guide wheel 14 are respectively positioned at two sides of the die 1, the horizontally arranged metal wire coming out of the die 1 is tangent to the lowest end of the circumferential surface of the first guide wheel 3, and the horizontal metal wire entering the die 1 is tangent to the highest point of the circumferential surface of the fourth guide wheel 14.

The second guide wheel 5 and the third guide wheel 13 are positioned on the same horizontal plane, and the third guide wheel 13 and the fourth guide wheel 14 are positioned on the same vertical plane.

The traction device of the traction end comprises a motor 16, a rotating rod 7 and a baffle disc 8, wherein the motor 16 is provided with a speed reducing mechanism.

The cross section of the rotating rod 7 is polygonal, one end of the rotating rod is connected with the output shaft of the motor 16, and the other end of the rotating rod is coaxially fixed with a round rod 701.

The one end towards round bar 701 of fender dish 8 is fixed with support sleeve 801, and support sleeve 801 cover is established on bull stick 7, and the one end that support sleeve 801 kept away from fender dish 8 is equipped with screw thread portion, and screw thread portion is last to be connected with nut dish 802, and support sleeve 801, fender dish 8 and nut dish 802 combination are a fixing device of winding roller 10 and paying off roller 12. The inner diameter of the support sleeve 801 is the same as the outer diameter of the rotating rod 7 so that the support sleeve 801 rotates in synchronization with the rotating rod 7.

The die mounting box 2, the wire drawing wheel 4, the second guide wheel 5, the third guide wheel 13 and the motor 16 are fixedly connected with the supporting platform 20 below.

The supporting platform 20 is convexly provided with a clamping plate 2001, the upper end of the clamping plate 2001 and one end deviating from the motor 16 are arranged in an open mode, a supporting frame 11 is arranged in the clamping plate 2001 in a clamping mode, the supporting frame 11 is in a portal frame mode, a groove is formed in the top surface of a top beam, and a round rod 701 is rotatably erected in the groove of the top beam of the supporting frame 11. In order to prevent the support 11 from sliding out of the clamping plate 2001 in the use process, through holes are formed in the positions, corresponding to the vertical rods of the support 11 and the clamping plate 2001, of the support 11, after the support 11 is installed in place, positioning inserting rods penetrate through the through holes, and the clamping plate 2001 is fixedly connected with the support 11 through the positioning inserting rods.

In this embodiment, the drawn wire is wound around the winding roller 10, and in order to perform wiring on the winding roller 10, the winding roller 10 may be reciprocated left and right during the winding process, so that after the wire is wound on one layer, the wire is wound on another layer by moving up.

In order to achieve the above technical effects, in this embodiment, a gear box 6 is disposed between the rotating rod 7 and the motor 16, two first gears 601 and second gears 603 that are meshed with each other are disposed in the same vertical plane inside the box of the gear box 6, the first gears 601 and the second gears 603 are disposed up and down, a first half gear 602 is coaxially fixed on the first gears 601, and a second half gear 604 is coaxially fixed on the second gears 603.

The first half gear 602 has the same number of teeth as the second half gear 604, and the teeth occupy the same arc, which is 180 ° or 175 °.

A third gear 605 is arranged between the first half gear 602 and the second half gear 604, and the third gear 605 is in meshed connection with the first half gear 602 and the second half gear 604 at intervals. That is, the first half gear 602 and the second half gear 604 are arranged in the same direction, and when the first half gear 602 is meshed with the third gear 605, the second half gear 604 is disconnected from the third gear 605, and when the first half gear 602 and the third gear 605 are completely meshed, the second half gear 604 starts to mesh with the third gear 605.

The rotating rod 7 is fixedly connected with the first half gear 602 or the second half gear 604 coaxially, the output shaft of the motor 16 is fixedly connected with the first gear 601 or the second gear 603 coaxially, and the specification parameters of the first half gear 602 or the second half gear 604 are the same.

The third gear 605 is coaxially and fixedly connected with a screw rod 9 towards one side of the rotating rod 7, a nut sleeve 901 in threaded connection with the screw rod 9 is sleeved on the screw rod 9, a second clamping groove 902 is formed in the nut sleeve 901, and the edge of the baffle disc 8 is clamped inside the second clamping groove 902.

The nut sleeve 901 is provided with a guide rod in a penetrating way, and two ends of the guide rod are connected with the supporting platform 20. The screw rod 9 rotates, and under the limiting effect of the guide rod, the nut sleeve 901 moves along the axial direction of the screw rod 9 and drives the baffle disc 8 to move.

The wire-releasing end is provided with a wire-drawing lubricant smearing box 15 which is positioned between the die mounting box 2 and the third guide wheel 13.

The drawing lubricant application box 15 includes a middle box body 1501, and liquid receiving boxes 1503 arranged on both sides of the middle box body 1501.

The middle box 1501 is provided with a plurality of threading holes 15011, the threading holes 15011 are correspondingly arranged with the drawing channels 1021 of the die 1, and metal wires enter and exit the middle box 1501 through the threading holes 15011, so that the upper ends of the threading holes 15011 are arranged in an open mode for threading convenience.

The drawing lubricant is added in the middle box body, and in the embodiment, the drawing lubricant is wet-type and liquid, and can also be rapeseed oil.

A liquid return hole 15012 is arranged below the threading hole 15011, the upper end of the liquid receiving box 1503 is arranged in an open mode, the liquid receiving box 1503 is positioned between the threading hole 15011 and the liquid return hole 15012, and a return pipe 1505 is connected between a liquid discharge hole on the bottom surface of the liquid receiving box 1503 and the liquid return hole 15012 in a penetrating mode.

The bottom inside the middle box 1501 is provided with a plurality of elastic air bags 1504, and the elastic air bags 1504 are positioned below the liquid level inside the middle box 1501. An air supply device is fixed to the support platform 20, and is connected to the elastic air bag 1504 in a penetrating manner.

The elastic air bags 1504 are connected through a connecting air channel 15041, a main air inlet and outlet pipe 15042 connected through the elastic air bags 1504 at the end parts is arranged outside the middle box 1501, and the main air inlet and outlet pipe 15042 is connected through an air supply device.

The air supply device supplies air and sucks air to the inside of the elastic air bag 1504, so that the elastic air bag 1504 contracts and expands, the elastic air bag 1504 expands to drive the liquid level inside the middle box 1501 to rise, the metal wire is submerged, and the lubricant is smeared on the metal wire, so that dead angles can be avoided. The lubricant then flows into the inside of the receiver 1503 through the threading hole 15011 and flows back into the inside of the intermediate tank 1501 through the return pipe 1505.

Elastic bladder 1504 then collapses and the fluid level decreases, facilitating the return of lubricant within return tube 1505.

For convenience in adding lubricant, the upper end of the middle box 1501 is arranged in an opening, and an upper cover 1502 is covered at the opening.

To avoid upward movement of lubricant through return tube 1505 when spring bladder 1504 is inflated, return tube 1505 is provided with a check valve 1506 in this embodiment. The existing check valve 1506 needs large pressure for opening, and is inconvenient to use, so in this embodiment, the check valve 1506 is horizontally arranged, and two sides of the check valve are respectively a vertical pipe and a horizontal pipe, the vertical pipe is connected with the liquid receiving box 1503 in a penetrating way, and the horizontal pipe is connected with the liquid returning hole 15012 in a penetrating way.

The inner cavity of the valve body 15061 of the check valve 1506 is cuboid, the middle is provided with a valve plate 15063, and when the valve plate 15063 is in a vertical state, the check valve 1506 is blocked. The bottom of the valve plate 15063 is hinged with the valve body 15061, a triangular block 15065 is fixed at one end of the valve plate 15063 facing the horizontal pipe at the bottom of the valve body 15061, and when the check valve 1506 is opened, the valve plate 15063 is obliquely arranged and is abutted with an inclined surface of the triangular block 15065. An upper limit bump 15062 is arranged on one end of the top surface of the valve plate 15063 facing the vertical pipe, and the upper limit bump 15062 is fixedly connected with the top surface of the valve body.

When the elastic air bag 1504 expands, the lubricant flows into the valve body 15061 through the horizontal tube, and impacts the valve plate through the gap between the triangular block 15065 and the bottom of the valve plate 15063, and when the valve plate rotates and impacts the upper limit bump 15062, the valve plate is in a vertical state, and the check valve 1506 is blocked.

The air supply device adopts a piston type air cylinder 17, and the driving device drives the piston of the air cylinder 17 to reciprocate.

In this embodiment, the cylinder 17 includes a cylinder body, a piston is disposed in the cylinder body, a piston rod passes through the end of the cylinder 17, an air inlet and outlet hole is disposed on the top surface of the front end of the cylinder, and the air inlet and outlet hole is connected with the main air inlet and outlet pipe 15042 in a penetrating manner through an air pipe 1702.

In order to synchronize the movement of the cylinder 17 with the movement of the wire, the cylinder 17 is automatically deactivated when the wire is not moving. In this embodiment, a rotating rod 7, a screw rod 9 and a guide rod are rotatably arranged on one side of the wire drawing lubricant smearing box 15 at the paying-off end, which is away from the die mounting box 2, and a nut sleeve 901 is also arranged on the screw rod 9. The nut sleeve 901, the screw 9 and the guide rods are arranged and connected in the same way as the traction end.

The support sleeve 801 is sleeved on the rotating rod 7, one end of the support sleeve 801 is fixedly provided with a baffle disc 8, one end of the support sleeve 801, which is away from the baffle disc 8, is provided with a threaded part, and the threaded part is connected with a nut disc 802 in a threaded manner.

The rotating rod 7 and the screw rod 9 are connected with the gear box 6, the inner structure of the paying-off end gear box 6 and the structure of the traction end gear box 6 are basically all the same, and only the third gear 605 is coaxially fixed with a first belt pulley 606.

The supporting platform 20 is rotatably provided with a driving gear 18, the driving gear 18 is coaxially fixed with a second belt pulley 1801, and a synchronous belt 19 is sleeved between the second belt pulley 1801 and the first belt pulley 606. A rack 1701 is fixed at the end of the piston rod of the air cylinder 17, and the rack 1701 is in meshed connection with the driving gear 18.

When the metal wire is drawn, the metal wire on the paying-off roller 12 moves to drive the paying-off roller 12 to rotate, and then drive the rotating rod 7 to rotate and drive the third gear 605 to rotate in a forward and reverse reciprocating mode. The third gear 605 rotating in the forward and reverse directions drives the driving gear 18 to rotate in the forward and reverse directions through the synchronous belt, and further drives the piston of the air cylinder 17 to do reciprocating motion, so that the air release, air suction, shrinkage and expansion of the elastic air bag 1504 are realized.

A wire drawing process based on the wire drawing machine comprises the following steps of:

A. the support frame 11 is slid out, then the wire-wound wire paying-off roller 12 is sleeved on the support sleeve 801 at the paying-off end, then the nut 802 is screwed, and the wire paying-off roller 12 is clamped between the nut 802 and the baffle disc 8.

Then the support frame 11 is slid into the clamping plate 2001, and after the two fixing connection, the round bar 701 is clamped on the support frame 11.

B. Taking out the free end of the metal wire, shaping the free end, passing through a drawing channel 1021 of a first die 1, manually drawing, winding the wire on a drawing wheel 4, winding at least one circle, and passing through another die 1 adjacent to the previous die 1 after being guided by a first guide wheel 3, a second guide wheel 5, a third guide wheel 13 and a fourth guide wheel 14;

D. the final wire free end is guided by the second guide wheel 5 and wound around the winding roller 10. The winding roller 10 is sleeved on the supporting sleeve 801 at the traction end;

E. starting the motor 16 to provide traction for wire drawing;

F. the screw 9 which rotates reciprocally drives the winding roller 10 to swing in the winding process, so as to carry out wiring;

G. the movement of the metal wire drives the wire releasing roller 12 to rotate, and then drives the rotating rod 7 to rotate and drives the third gear 605 to rotate in a forward and reverse reciprocating manner. The third gear 605 rotating in the forward and reverse directions drives the driving gear 18 to rotate in the forward and reverse directions through the synchronous belt, and then drives the piston of the air cylinder 17 to do reciprocating motion, so that the air release, air suction, shrinkage and expansion of the elastic air bag 1504 are realized, the lubricant liquid level in the wiredrawing lubricant smearing box 15 is lifted, and the lubricant is smeared on the metal wires.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.

Claims

1. Wire drawing machine, including mould (1), its characterized in that:

a plurality of dies (1) with different specifications are arranged in a row at intervals inside the die mounting box (2),

one end of the die mounting box (2) positioned at the outlet of the die (1) is sequentially provided with a wire drawing wheel (4) and a traction device,

the wire drawing wheel (4) comprises areas with different diameters, a second guide wheel (5) is arranged below the wire drawing wheel (4), a third guide wheel (13) is arranged at one end of the die mounting box (2) which is positioned at the inlet of the die (1),

the traction device comprises a motor (16), a rotating rod (7) and a baffle disc (8),

the section of the rotating rod (7) is polygonal, one end of the rotating rod is connected with the output shaft of the motor (16), the other end of the rotating rod is coaxially fixed with a round rod (701),

one end of the baffle disc (8) facing the round rod (701) is fixed with a supporting sleeve (801), the supporting sleeve (801) is sleeved on the rotating rod (7), one end of the supporting sleeve (801) deviating from the baffle disc (8) is provided with a thread part, the thread part is connected with a nut disc (802) in a threaded way,

the die mounting box (2), the wire drawing wheel (4), the second guide wheel (5), the third guide wheel (13) and the motor (16) are fixedly connected with a supporting platform (20) below,

the supporting platform (20) is convexly provided with a clamping plate (2001), the upper end of the clamping plate (2001) and one end deviating from the motor (16) are arranged in an open mode, a supporting frame (11) is clamped inside the clamping plate (2001), and the round rod (701) is rotatably erected above the supporting frame (11).

2. The wire drawing machine according to claim 1, wherein:

a through wire drawing channel (1021) is arranged in the middle of the die (1), an annular cooling cavity (1011) is sleeved outside the wire drawing channel (1021), a through hole (1012) is connected outside the cooling cavity (1011) in a through way, a clamping ring (1013) is convexly arranged on the circumferential surface of the die (1),

the die mounting box (2) comprises a lower box body (201) and an upper box body (202), a plurality of lower semicircular water cavities (2011) are inwards concaved on the top surface of the lower box body (201), water inlet channels (2021) are connected at the bottoms of the lower semicircular water cavities (2011) in a penetrating mode, water inlet connectors (2013) connected with the water inlet channels (2021) in a penetrating mode are arranged on the outer walls of the lower box body (201), first clamping grooves (2014) are concavely arranged on the outer sides of the lower semicircular water cavities (2011),

the upper box body (202) is covered above the lower box body (201), an upper semicircular water cavity (2021) is concavely arranged on the bottom surface of the upper box body (202), the upper semicircular water cavity (2021) and the lower semicircular water cavity (2011) are correspondingly arranged, a water outlet channel (2022) is connected with the top of the upper semicircular water cavity (2021) in a penetrating way, a water outlet joint (2023) connected with the water outlet channel (2022) in a penetrating way is arranged on the outer wall of the upper box body (202), a clamping groove which is correspondingly arranged with the first clamping groove (2014) is concavely arranged on the bottom surface of the upper box body (202),

the die (1) is arranged between the lower semicircular water cavity (2011) and the upper semicircular water cavity (2021), the through hole (1012) is connected with the lower semicircular water cavity (2011) and the upper semicircular water cavity (2021) in a penetrating way,

the clamping ring (1013) is clamped with the first clamping groove (2014) and the inside of the clamping groove on the bottom surface of the upper box body (202).

3. The wire drawing machine according to claim 2, wherein:

the die (1) comprises an outer die (101) and an inner die (102), the outer die (101) is sleeved outside the inner die (102), the two materials are different,

the cooling cavity (1011), the through hole (1012) and the clamping ring (1013) are arranged on the outer die (101),

the wire drawing channel (1021) is coaxially arranged on the inner die (102).

4. A wire drawing machine according to claim 3, wherein:

the wire drawing wheel (4) is in a round table shape, a plurality of partition plates (401) are sleeved on the circumferential surface of the wire drawing wheel (4), and the number of the areas spaced between the partition plates (401) is the same as that of the dies (1).

5. The wire drawing machine of claim 4, wherein:

a gear box (6) is arranged between the rotating rod (7) and the motor (16), two first gears (601) and second gears (603) which are connected in a meshed manner are arranged in the same vertical plane in the box body of the gear box (6), a first half gear (602) is coaxially fixed on the first gears (601), a second half gear (604) is coaxially fixed on the second gears (603),

the first half gear (602) has the same number of teeth as the second half gear (604),

a third gear (605) is arranged between the first half gear (602) and the second half gear (604), the third gear (605) is meshed with the first half gear (602) and the second half gear (604) at intervals,

the rotating rod (7) is coaxially and fixedly connected with the first half gear (602) or the second half gear (604), the output shaft of the motor (16) is coaxially and fixedly connected with the first gear (601) or the second gear (603),

a screw rod (9) is coaxially and fixedly connected to one side of the third gear (605) facing the rotating rod (7), a nut sleeve (901) in threaded connection with the screw rod (9) is sleeved on the screw rod (9), a second clamping groove (902) is arranged on the nut sleeve (901), the edge of the baffle disc (8) is clamped in the second clamping groove (902),

the nut sleeve (901) is penetrated with a guide rod, and two ends of the guide rod are connected with the supporting platform (20).

6. The wire drawing machine of claim 5, wherein:

a wiredrawing lubricant smearing box (15) is arranged between the die mounting box (2) and the third guide wheel (13),

the wiredrawing lubricant smearing box (15) comprises a middle box body (1501) and liquid receiving boxes (1503) arranged at two sides of the middle box body (1501),

a plurality of threading holes (15011) are arranged on the middle box body (1501), the threading holes (15011) are correspondingly arranged with the drawing channels (1021) of the die (1),

a liquid return hole (15012) is arranged below the threading hole (15011), the upper end of the liquid receiving box (1503) is arranged in an open mode, the liquid receiving box (1503) is positioned between the threading hole (15011) and the liquid return hole (15012), a return pipe (1505) is connected between a liquid discharge hole on the bottom surface of the liquid receiving box (1503) and the liquid return hole (15012) in a penetrating mode,

the bottom inside the middle box body (1501) is provided with a plurality of elastic air bags (1504), and an air supply device is fixed on the supporting platform (20) and is connected with the elastic air bags (1504) in a penetrating way.

7. The wire drawing machine of claim 6, wherein:

the elastic air bags (1504) are connected in a penetrating way through a connecting air passage (15041), a main air inlet and outlet pipe (15042) connected in a penetrating way with the elastic air bags (1504) at the end parts is arranged outside the middle box body (1501), and the main air inlet and outlet pipe (15042) is connected in a penetrating way with the air supply device.

8. The wire drawing machine of claim 7, wherein:

the air supply device adopts a piston type air cylinder (17), and the driving device drives the piston of the air cylinder (17) to reciprocate.

9. The wire drawing machine of claim 8, wherein:

one end of the wiredrawing lubricant smearing box (15) away from the die mounting box (2) is rotatably provided with a rotating rod (7),

the supporting sleeve (801) is sleeved on the rotating rod (7), a baffle disc (8) is fixed at one end of the supporting sleeve (801), a threaded portion is arranged at one end, deviating from the baffle disc (8), of the supporting sleeve (801), and a nut disc (802) is connected to the threaded portion in a threaded mode.

10. A drawing process based on the drawing machine according to claim 9, characterized by comprising the following steps:

A. sleeving a paying-off roller (12) wound with a metal wire on a supporting sleeve (801) at a paying-off end, then screwing a nut (802), and clamping the paying-off roller (12) between the nut (802) and a baffle disc (8);

B. taking out the free end of the metal wire, shaping the free end, passing through a wire drawing channel (1021) of a first die (1), manually drawing, winding the wire on a wire drawing wheel (4), winding at least one circle, guiding the wire by a second guide wheel (5) and a third guide wheel (13), and passing through another die (1) adjacent to the former die (1);

D. after the free end of the final metal wire is guided by a second guide wheel (5), the metal wire is wound on a winding roller (10), and the winding roller (10) is sleeved on a supporting sleeve (801) at the traction end;

E. the motor (16) is started to provide traction for wire drawing.