CN110238222B - Associated mode wire drawing machine of metal product preprocessing - Google Patents

Abstract

The invention relates to the technical field of a tandem type wire drawing machine, and discloses a metal product preprocessing tandem type wire drawing machine which comprises a fixed die, a conical hole and a steel wire, wherein the diameter of an opening at the right end of the conical hole is larger than that of the steel wire, an extrusion ring is fixedly arranged in the conical hole, a heat dissipation channel is arranged in the fixed die and above the conical hole, a heat conduction pipe is fixedly arranged on the left side surface of the fixed die and on the outer side of an outlet of the heat dissipation channel, and a heat preservation device is fixedly arranged on the left side surface of the fixed die and on the outer side of the outlet of the conical hole. This kind of associated mode wire drawing machine is processed in advance to metal product, in the wire drawing, the extrusion ring replaces the taper hole to extrude the steel wire, changes the friction between face and the face into the friction between face and the line to reduce the production of frictional heat, and through the inside radiating channel who offers of fixed mould, make the frictional heat can in time spill, and then guarantee the smooth and easy of wire drawing process.

Description

Associated mode wire drawing machine of metal product preprocessing

Technical Field

The invention relates to the technical field of a tandem type wire drawing machine, in particular to a metal product preprocessing tandem type wire drawing machine.

Background

An automatic wire drawing machine is a mechanical device for cold drawing of metal wire or rod, so that the parameters of diameter, roundness, surface finish and the like of raw materials can meet the production requirements.

The existing wire drawing structure of the associated wire drawing machine is divided into two types, namely a fixed die and a roller die, wherein the fixed die is structured as shown in figure 1, the cross-sectional area of the steel wire is reduced and the surface is polished by penetrating the steel wire into one end of a conical hole formed on the fixed die and pulling out the steel wire from the small end, but the wire drawing structure depends on the hard extrusion between the steel wire and the fixed die, a large amount of heat is generated between the steel wire and a wire inlet of the conical hole due to sliding friction, so that the adhesion between the steel wire and the fixed die is generated, in order to ensure the smooth drawing of the next pass, the steel wire must be sufficiently cooled, namely the wire running speed is slowed down, the adhesion between the steel wire and the fixed die is further intensified, the wire drawing quality of the steel wire is reduced, and after the temperature of the steel wire is sharply increased, the temperature is rapidly cooled after the steel wire is, the internal lattice structure is dislocated, the difference between the surface hardness and the central hardness of the steel wire is large, and the steel wire is easy to break.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a metal product preprocessing associated drawing machine which has the advantages that a heat dissipation channel can fully dissipate heat in a conical hole, the smoothness of steel wire drawing is ensured, a heat collection device can guide the heat dissipated by the conical hole back to a drawn steel wire, the good mechanical property of the steel wire is ensured, and the problems that the common associated drawing machine is easy to cause the adhesion between the steel wire and a fixed mold due to the fact that the heat is not dissipated out in the fixed mold, and the steel wire is rapidly reduced after the temperature of the steel wire is sharply increased to cause processing hardening and easy wire breakage are solved.

(II) technical scheme

In order to achieve the purposes that the heat dissipation channel can fully dissipate the heat in the conical hole and ensure the smooth wire drawing of the steel wire, the heat collection device can guide the heat at the position dissipated by the conical hole back to the steel wire after wire drawing, and the good mechanical property of the steel wire is ensured, the invention provides the following technical scheme: the utility model provides a metal product associated mode wire drawing machine of processing in advance, includes fixed mould, bell mouth and steel wire, the right-hand member opening diameter of bell mouth is greater than the diameter of steel wire, the inside fixed mounting of bell mouth has the extrusion ring, the inside of fixed mould and the top position department that is located the bell mouth have seted up the heat dissipation channel, the outside fixed mounting that the left surface of fixed mould just is located the heat dissipation channel export has the heat pipe, the outside fixed mounting that the left surface of fixed mould just is located the bell mouth export has heat preservation device.

Preferably, the quantity of extrusion ring is four, four the extrusion ring is evenly distributed in the inside of bell mouth, four the diameter of extrusion ring reduces along the bell mouth from the right side to the left in proper order, the cross-sectional shape of extrusion ring is the semicircle, the circumferential surface of extrusion ring is tangent with the circumferential surface of steel wire.

Preferably, the heat dissipation channel comprises a first through groove, a second through groove and a third through groove.

Preferably, the number of the second through grooves is two, the two second through grooves are respectively communicated with gaps between the left and right extrusion rings, the third through groove is communicated with a gap between the middle extrusion ring, the diameter of the third through groove is larger than that of the second through groove, the second through groove and the third through groove are both communicated with the bottom of the first through groove, and the first through groove is communicated with the left side surface of the fixed mold.

Preferably, the heat conduction pipe is made of a metal alloy pipe with good heat conduction performance, the circumferential surface of the heat conduction pipe is provided with first through holes, and the first through holes are uniformly distributed on the circumferential surface of the heat conduction pipe.

Preferably, a second through hole and a groove are formed in the right side face of the heat preservation device, the diameter and the position of the second through hole are matched with the outer diameter and the position of the heat conduction pipe, a brush is fixedly mounted inside the groove, and the inner diameter of the brush is the same as the diameter of the steel wire after wire drawing.

Preferably, the heat preservation device's inside fixed mounting has the heat preservation, the material of heat preservation is the cotton piece, the volume of heat preservation is the same with the volume of the inside cavity of heat preservation device.

(III) advantageous effects

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

1. this kind of associated mode wire drawing machine is processed in advance to metal product, in the wire drawing, the extrusion ring replaces the taper hole to extrude the steel wire, changes the friction between face and the face into the friction between face and the line to reduce the production of frictional heat, and through the inside radiating channel who offers of fixed mould, make the frictional heat can in time spill, and then guarantee the smooth and easy of wire drawing process.

2. This kind of metal product preprocessing associated type wire drawing machine, the inside heat preservation of heat preservation device possesses good thermal insulation performance on the one hand, keeps warm to the steel wire after the wire drawing, avoids steel wire temperature sharply to descend, and on the other hand lets in heat preservation device through the heat pipe from the heat dissipation channel gives out heat to radiate the surface of steel wire through the heat preservation, further maintained the temperature of steel wire, thereby guarantee that the steel wire can not produce strong work hardening and produce disconnected silk, guaranteed the good mechanical properties of steel wire.

Drawings

FIG. 1 is a schematic internal view of a wire drawing structure of a conventional tandem wire drawing machine;

FIG. 2 is a schematic view of the interior of a structural wiredrawing structure of the present invention;

FIG. 3 is an exploded view of a structural wiredrawing structure of the present invention;

FIG. 4 is a cross-sectional view of a heat sink channel of the present invention;

fig. 5 is an exploded view of the structural insulating device of the present invention.

In the figure: 1. a fixed mold; 101. a tapered hole; 2. a steel wire; 3. an extrusion ring; 4. a heat dissipation channel; 401. a first through groove; 402. a second through groove; 403. a third through groove; 5. a heat conducting pipe; 501. a first through hole; 6. a heat preservation device; 601. a second through hole; 602. a groove; 7. a heat-insulating layer; 8. and a brush.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 2-5, a metal product preprocessing associated drawing machine comprises a fixed die 1, a tapered hole 101 and a steel wire 2, wherein the diameter of the right end opening of the tapered hole 101 is larger than the diameter of the steel wire 2 for installing an extrusion assembly, four extrusion rings 3 are fixedly installed inside the tapered hole 101, the four extrusion rings 3 are uniformly distributed inside the tapered hole 101, the diameters of the four extrusion rings 3 are sequentially reduced from right to left along the tapered hole 101 to ensure that the steel wire 2 can be gradually drawn to a required diameter, the cross section of each extrusion ring 3 is semicircular, the circumferential surface of each extrusion ring 3 is tangent to the circumferential surface of the steel wire 2, the surface-to-surface friction between the tapered hole 101 and the steel wire 2 is converted into the friction between the circumferential surface of the steel wire 2 and the circumferential tangent line of the extrusion ring 3, so as to reduce the generation of frictional heat, a heat dissipation channel 4 is formed inside the fixed die 1 and above the tapered hole 101, the heat dissipation channel 4 comprises a first through groove 401, a second through groove 402 and a third through groove 403, the number of the second through grooves 402 is two, the two second through grooves 402 are respectively communicated with gaps between the left and right extrusion rings 3, the third through groove 403 is communicated with the gap of the middle extrusion ring 3, the diameter of the third through groove 403 is larger than that of the second through groove 402, the heat in the middle of the tapered hole 101 with poor heat dissipation effect and the heat in the two sides can be dissipated at the same speed, so that the heat dissipation effect is ensured, the second through groove 402 and the third through groove 403 are both communicated with the bottom of the first through groove 401, the heat convergence of the second through groove 402 and the third through groove 403 is realized, the first through groove 401 is communicated with the left side surface of the fixed mold 1, and further communicates the passage of the heat dissipation in the tapered hole 101 and the outside of the fixed mold 1, the left side surface of the fixed mold 1 and the outside of the outlet of, the heat pipe is used for guiding heat dissipated inside the heat dissipation channel 4, the heat conduction pipe 5 is made of a metal alloy pipe with good heat conduction performance, the heat conduction efficiency is guaranteed, the first through hole 501 is formed in the circumferential surface of the heat conduction pipe 5, the first through hole 501 is uniformly distributed on the circumferential surface of the heat conduction pipe 5, the uniformity of heat dissipation is guaranteed, the heat preservation device 6 is fixedly installed on the left side surface of the fixed die 1 and on the outer side of the outlet of the tapered hole 101, the second through hole 601 and the groove 602 are formed in the right side surface of the heat preservation device 6, the diameter and the position of the second through hole 601 are matched with the outer diameter and the position of the heat conduction pipe 5, the brush 8 is fixedly installed inside the groove 602, the inner diameter of the brush 8 is the same as the diameter of the drawn steel wire 2, so that lubricating powder adhered to the surface of the steel wire 2 is wiped off, the, the inside fixed mounting of heat preservation device 6 has heat preservation 7 for the heat radiation that gives out heat pipe 5 radiates the surface of steel wire 2, and the material of heat preservation 7 is the cotton piece, and the volume of heat preservation 7 is the same with the volume of the inside cavity of heat preservation device 6, thereby realizes the heat preservation to steel wire 2 surface, prevents that steel wire 2 from lowering the temperature rapidly and producing the work hardening.

The working principle is as follows: send into steel wire 2 from the right side of bell mouth 101, and pull out from the left side of bell mouth 101, the inside heat preservation 7 of heat preservation device 6 keeps warm to steel wire 2 after the wire drawing, at the in-process of wire drawing, produce the frictional heat between extrusion ring 3 and the circumferential surface of steel wire 2, the heat assembles the inside that leads to groove 401 through leading to groove two 402 and leading to groove three 403, and the left surface opening from fixed mould 1 scatters, the inside that the heat that scatters distributes heat preservation 7 through-hole 501 on heat pipe 5, and radiate once more for the surface of steel wire 2, the heat retaining effect to steel wire 2 has been strengthened, thereby avoid steel wire 2 temperature to reduce rapidly and the work hardening that produces.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention. In the drawings of the present invention, the filling pattern is only for distinguishing the layers, and is not limited to any other way.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. The utility model provides a metal product associated drawing machine of preprocessing, includes fixed mould (1), bell mouth (101) and steel wire (2), its characterized in that: the diameter of the right-hand member opening of bell mouth (101) is greater than the diameter of steel wire (2), the inside fixed mounting of bell mouth (101) has extrusion ring (3), heat dissipation channel (4) have been seted up to the inside of fixed mould (1) and the top position department that is located bell mouth (101), the outside fixed mounting that the left surface of fixed mould (1) just is located heat dissipation channel (4) export has heat pipe (5), the outside fixed mounting that the left surface of fixed mould (1) just is located bell mouth (101) export has heat preservation device (6), the quantity of extrusion ring (3) is four, four extrusion ring (3) are evenly distributed in the inside of bell mouth (101), four the diameter of extrusion ring (3) reduces in proper order from right side to left side along bell mouth (101), the cross sectional shape of extrusion ring (3) is the semicircle, the circumference surface of extrusion ring (3) is tangent with the circumference surface of steel wire (2), the heat dissipation channel (4) comprises a first through groove (401), a second through groove (402) and a third through groove (403), the number of the second through grooves (402) is two, the two second through grooves (402) are respectively communicated with gaps between the left and right side extrusion rings (3), the third through groove (403) is communicated with the gap of the middle extrusion ring (3), the diameter of the third through groove (403) is larger than that of the second through groove (402), the second through groove (402) and the third through groove (403) are both communicated with the bottom of the first through groove (401), the first through groove (401) is communicated with the left side face of the fixed mold (1), the heat conduction pipe (5) is made of a metal alloy pipe with good heat conduction performance, the circumferential surface of the heat conduction pipe (5) is provided with the first through holes (501), the first through holes (501) are uniformly distributed on the circumferential surface of the heat conduction pipe (5), the right side face of the heat preservation device (6) is provided with the second through holes (601) and grooves (602, the diameter and the position of through-hole two (601) all with the external diameter and the position looks adaptation of heat pipe (5), the inside fixed mounting of recess (602) has brush (8), the internal diameter of brush (8) is the same with the diameter after steel wire (2) wire drawing, the inside fixed mounting of heat preservation device (6) has heat preservation (7), the material of heat preservation (7) is the cotton piece, the volume of heat preservation (7) is the same with the volume of heat preservation device (6) inner cavity.

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