阅读说明：本技术 一种保证钢丝进模直线性的导向机构 (Guide mechanism for ensuring steel wire die feeding linearity ) 是由 吴晓玲 程俊杰 殷闽 程冠博 黄陈 乐金荣 于 2021-09-07 设计创作，主要内容包括：本发明涉及到一种保证钢丝进模直线性的导向机构,包括固定设置于拉拔模与导向轮之间的支架和连接在支架上的导向模,所述导向模与钢丝拉拔模同心设置,导向模的孔径不小于拉拔模前端孔径。本发明通过在拉拔模和导向轮之间设置导向模,通过导向模修正拉拔模前端钢丝的外挠状态,确保钢丝进入拉拔模时基本保持与拉拔模同轴,从而消除钢丝在拉拔模入口刮擦脱铜、拉伤、拉拔横向裂纹、过程钢丝椭圆度超标等质量问题,提高产品质量。(The invention relates to a guide mechanism for ensuring the linearity of a steel wire drawing die, which comprises a bracket fixedly arranged between a drawing die and a guide wheel and a guide die connected to the bracket, wherein the guide die and the steel wire drawing die are concentrically arranged, and the aperture of the guide die is not smaller than that of the front end of the drawing die. According to the invention, the guide die is arranged between the drawing die and the guide wheel, and the outward bending state of the steel wire at the front end of the drawing die is corrected through the guide die, so that the steel wire is ensured to be basically coaxial with the drawing die when entering the drawing die, and thus the quality problems of scraping and decoppering of the steel wire at the inlet of the drawing die, pulling damage, transverse drawing crack, over-standard ovality of the steel wire in the process and the like are solved, and the product quality is improved.)

1. The utility model provides a guarantee guide mechanism of steel wire mold feeding straightness nature, its characterized in that, including fixed support (3) and the guide die (4) of connection on support (3) that set up between drawing die (1) and leading wheel (2), guide die (4) and steel wire drawing die (1) set up with one heart, and the aperture diameter of guide die (4) is greater than drawing die (1) front end aperture diameter by 0.2~0.4 mm.

2. The guide mechanism according to claim 1, wherein the support (3) comprises a vertical plate (301) which is vertically arranged, at least one vertical rail (302) is vertically arranged on the vertical plate (301), the vertical rails (302) are parallel to each other, an L-shaped sliding block (303) is slidably connected onto the vertical rail (302), a transverse rail (304) is arranged on the upper surface of a bottom plate of the L-shaped sliding block (303), the transverse rail (304) is horizontally arranged and perpendicular to the axial direction of the drawing die (1), and the guide die (4) is slidably connected onto the transverse rail (304).

3. The guide mechanism as claimed in claim 2, wherein the sliding connection part of the L-shaped sliding block (303) and the vertical rail (302) is provided with a plurality of first locking threaded holes (5) facing the vertical plate (301), the plurality of first locking threaded holes (5) are uniformly distributed on two sides of the vertical rail (302), and each first locking threaded hole (5) is internally connected with a first locking screw (6); a plurality of second locking threaded holes (7) opposite to the guide die (4) are formed in the bottom plate of the L-shaped sliding block (303), and second locking screws (8) are connected with the second locking threaded holes (7) in an internal thread mode.

4. The guide mechanism according to claim 1, characterized in that a blind hole (9) is formed in one end of the guide die (4) opposite to the drawing die (1), a guide hole (401) of the guide die (4) is formed in the bottom surface of the blind hole (9), four adjusting threaded holes (10) are uniformly distributed in the circumferential direction of the side wall of the blind hole (9), an adjusting screw (11) is connected to each adjusting threaded hole (10) in an internal thread manner, a defibrillation block (12) is suspended in the blind hole (9), elastic inhaul cables (13) are respectively connected to positions of the defibrillation block (12) opposite to the four adjusting threaded holes (10), the other end of each inhaul cable (13) is respectively connected with the adjusting screw (11) in the corresponding adjusting threaded hole (10), the spatial position of the defibrillation block (12) in the blind hole (9) can be adjusted by screwing the four adjusting screws (11), and a through hole (14) coaxially arranged with the guide hole (401) of the guide die (4) is formed in the defibrillation block (12).

5. The guide mechanism according to claim 4, wherein the through hole (14) is a trumpet hole, the inner wall of the through hole (14) is a concave arc surface, the aperture of the through hole (14) is gradually reduced from the front end to the rear end, and the minimum aperture of the through hole (14) is not smaller than the aperture of the guide hole (401) of the guide die (4).

6. The guiding mechanism of claim 5, wherein the defibrillation block (12) is a hard, smooth tube made of polyurethane material.

7. Guide mechanism according to claim 5, characterized in that the pull cable (13) is a rubber band or a coil spring.

Technical Field

The invention relates to a guide mechanism for ensuring the linearity of a steel wire entering a die.

Background

At present, the linearity of a thick-specification wet-drawing rubber tube steel wire needs to be ensured through a positioning guide wheel before a paying-off end enters a die, after the diameter of the incoming steel wire is larger than 2.5mm, the elasticity of the steel wire is increased, and after the steel wire is turned through the guide wheel, a certain degree of external arc deflection occurs, as shown in figure 1, the space between the guide wheel and the die is not long enough, so that the straight line cannot be ensured to enter the thick-specification steel wire before the thick-specification steel wire enters the die, the steel wire is stressed and deviated in the die, the steel wire is not uniformly deformed in the drawing process, one side of the steel wire deviated in the external deflection is seriously deformed, and finally, the quality problems of scraping, decoppering, serious pulling, drawing transverse cracks, exceeding of the ovality of the steel wire in the process are caused, the finished steel wire is degraded, the qualification rate is reduced, and the die consumption is increased.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the guide mechanism can ensure that the steel wire is basically coaxial with a drawing die when entering the drawing die, so that the quality problems of scraping and decoppering of the steel wire at the die inlet, strain, drawing transverse cracks, exceeding of the ovality of the steel wire in the process and the like are solved.

In order to solve the technical problems, the invention adopts the technical scheme that: the guide mechanism comprises a support fixedly arranged between a drawing die and a guide wheel and a guide die connected to the support, wherein the guide die and the steel wire drawing die are concentrically arranged, and the aperture of the guide die is not smaller than that of the front end of the drawing die.

As a preferred scheme, the support comprises a vertical plate which is vertically arranged, at least one vertical rail is vertically arranged on the vertical plate, the vertical rails are parallel to each other, an L-shaped sliding block is connected onto the vertical rails in a sliding mode, a transverse rail is arranged on the upper surface of a bottom plate of the L-shaped sliding block, the transverse rail is horizontally arranged and perpendicular to the axial direction of the drawing die, and the guide die is connected onto the transverse rail in a sliding mode.

As a preferable scheme, a part of the L-shaped sliding block, which is in sliding connection with the vertical rail, is provided with a plurality of first locking threaded holes which are opposite to the vertical plate, the plurality of first locking threaded holes are uniformly distributed on two sides of the vertical rail, and each first locking threaded hole is internally threaded with a first locking screw; a plurality of second locking threaded holes opposite to the guide die are formed in the bottom plate of the L-shaped sliding block, and second locking screws are connected with the second locking threaded holes in an internal thread mode.

As a preferred scheme, a blind hole is formed in one end, back to the drawing die, of the guide die, the guide hole of the guide die is formed in the bottom surface of the blind hole, four adjusting threaded holes are evenly distributed in the circumferential direction of the side wall of the blind hole, an adjusting screw is connected to each adjusting threaded hole in a threaded manner, a defibrillation block is suspended in the blind hole, elastic inhaul cables are respectively connected to positions, right opposite to the four adjusting threaded holes, of the defibrillation block, the other end of each inhaul cable is respectively connected with the adjusting screw in the corresponding adjusting threaded hole, the spatial position of the defibrillation block in the blind hole can be adjusted by screwing the four adjusting screws, and a through hole which is coaxial with the guide hole of the guide die is formed in the defibrillation block.

As a preferred scheme, the through hole is a horn hole, the inner wall of the through hole is a concave arc surface, the aperture of the through hole is gradually reduced from the front end to the rear end, and the minimum aperture of the through hole is not smaller than the aperture of the guide hole of the guide die.

Preferably, the defibrillation block is a rigid, smooth tubular member made of a polyurethane material.

Preferably, the pull cable is an elastic band or a coil spring.

The invention has the beneficial effects that: according to the invention, the guide die is arranged between the drawing die and the guide wheel, and the outward bending state of the steel wire at the front end of the drawing die is corrected through the guide die, so that the steel wire is ensured to be basically coaxial with the drawing die when entering the drawing die, and thus the quality problems of scraping and decoppering of the steel wire at the inlet of the drawing die, pulling damage, transverse drawing crack, over-standard ovality of the steel wire in the process and the like are solved, and the product quality is improved.

The invention further improves the structure of the bracket for supporting the guide die, so that the guide die can adjust the spatial position of the guide die and ensure the concentricity of the guide die and the drawing die.

The invention further arranges defibrillation blocks on all the guide die, and utilizes the defibrillation blocks elastically connected in the guide die to defibrillate the steel wire entering the guide die, thereby eliminating the scraping of the steel wire with the guide die caused by the dithering and ensuring the surface quality of the steel wire.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:

FIG. 1 is a schematic view of a wire feeding structure without the guide mechanism of the present invention;

FIG. 2 is a schematic view of a wire feeding structure using the guide mechanism of the present invention;

FIG. 3 is a schematic perspective view of the stent of the present invention;

in FIGS. 1 to 3: 1. drawing die, 2, leading wheel, 3, support, 301, riser, 302, vertical rail, 303, L shape slider, 304, horizontal rail, 4, guide die, 401, guiding hole, 5, first locking screw hole, 6, first locking screw, 7, second locking screw hole, 8, second locking screw, 9, blind hole, 10, adjusting screw hole, 11, adjusting screw, 12, the piece of defibrillating, 13, the cable, 14, the through-hole, 100, the steel wire.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 2 and 3, a guide mechanism for ensuring the linearity of a steel wire entering a die comprises a support 3 fixedly arranged between a drawing die 1 and a guide wheel 2 and a guide die 4 connected to the support 3, wherein the guide die 4 and the steel wire drawing die 1 are concentrically arranged, the aperture of the guide die 4 is not smaller than that of the front end of the drawing die 1, and in this embodiment, the aperture of a guide hole 401 of the guide die 4 is 0.2-0.4 mm larger than that of the front end of the drawing die 1.

As shown in fig. 3, the support 3 includes a vertical plate 301 vertically disposed, at least one vertical rail 302 is vertically disposed on the vertical plate 301, the vertical rails 302 are parallel to each other, an L-shaped slider 303 is slidably connected to the vertical rail 302, a transverse rail 304 is disposed on an upper surface of a bottom plate of the L-shaped slider 303, the transverse rail 304 is horizontally disposed and perpendicular to an axial direction of the drawing die 1, and as shown in fig. 1, the guide die 4 is slidably connected to the transverse rail 304.

In actual use, the vertical plate 301 is fixedly attached to the bed. Thereby forming a support for the guide die 4.

The part of the L-shaped sliding block 303, which is in sliding connection with the vertical rail 302, is provided with a plurality of first locking threaded holes 5 which are opposite to the vertical plate 301, the plurality of first locking threaded holes 5 are uniformly distributed at two sides of the vertical rail 302, each first locking threaded hole 5 is in threaded connection with a first locking screw 6, after all the first locking screws 6 are loosened, the L-shaped sliding block 303 can slide to move up and down, the height of the guide die 4 is adjusted, the first locking screws 6 are locked after the adjustment is completed, the L-shaped sliding block 303 is fixed on the vertical plate 301, and in actual operation, the height of the L-shaped sliding block 303 can be controlled by adopting various other control means, such as a lead screw, a piston push rod and the like, which belong to the equivalent alternative scheme of the invention; a plurality of second locking threaded holes 7 opposite to the guide die 4 are formed in the bottom plate of the L-shaped sliding block 303, second locking screws 8 are connected to the second locking threaded holes 7 in an internal thread mode, after all the second locking screws 8 are loosened, the guide die 4 can be pushed to slide along the transverse rail 304, therefore, the horizontal position of the guide die 4 is adjusted, and after the position adjustment is completed, the second locking screws 8 are locked, so that the position of the guide die 4 can be fixed.

The one end that the direction mould 4 is back to drawing mould 1 has seted up a blind hole 9, and the guide hole 401 of direction mould 4 is seted up on blind hole 9 bottom surface, and blind hole 9 lateral wall circumference equipartition has four regulation screw holes 10, and every regulation screw hole 10 female connection has adjusting screw 11, and the suspension has a piece 12 of defibrillating in blind hole 9, and the piece 12 of defibrillating is connected with an elastic cable 13 that has respectively with four positions that regulation screw hole 10 is just right, and cable 13 can be rubber band or ring spring. The other end of each inhaul cable 13 is respectively connected with an adjusting screw 11 in a corresponding adjusting threaded hole 10, the spatial position of the defibrillation block 12 in the blind hole 9 can be adjusted by screwing four adjusting screws 11, and a through hole 14 which is coaxial with the guide hole 401 of the guide die 4 is formed in the defibrillation block 12.

Because the outer of steel wire is scratched, lead to its tensile uncontrollable, the steel wire will appear pulse oscillation phenomenon at the in-process of being hauled, this kind of oscillation phenomenon can aggravate the striking of steel 100 silk and drawing die 1, direction mould 4 to lead to the steel wire surface local impaired, impaired position because the sectional area reduces, consequently tensile strength will be less than not impaired position, will lead to drawing the inconsistent problem of effect when drawing. The defibrillation block 12 is elastically suspended in the blind hole 9, when the steel wire 100 collides with the defibrillation block 12, the defibrillation block 12 can buffer and absorb impact force, so that the surface collision of the steel wire 100 caused by shock impact is greatly weakened, the surface quality of the steel wire entering the drawing die 1 is effectively maintained, the consistency of the drawing effect of the steel wire and the consistency of the tensile strength of a final finished steel wire in the whole length range are ensured, the steel wire shock effect is eliminated simultaneously, and the steel wire stably enters the guide hole 401 and the drawing die 1.

The through hole 14 is a horn hole, the inner wall of the through hole 14 is a concave arc surface, the aperture of the through hole 14 is gradually reduced from the front end to the rear end, and the minimum aperture of the through hole 14 is not smaller than the aperture of the guide hole 401 of the guide die 4, but not larger than 30% of the aperture of the guide hole 401. The concave arc surface is matched with the external deflection of the steel wire 100, when the steel wire 100 vibrates to impact the inner wall of the through hole 14 of the defibrillation block 12, the steel wire 100 and the inner wall of the through hole 14 have larger contact area, the surface of the steel wire can be effectively protected, and the impact injury can be avoided.

The defibrillation block 12 is a hard smooth pipe made of polyurethane material, the polyurethane material has certain elasticity and higher smoothness, and a steel wire passes through the defibrillation block 12 made of the polyurethane material, so that the vibration of the steel wire 100 can be effectively eliminated, and the outer surface of the steel wire can be effectively protected.

The working principle of the invention is as follows: as shown in fig. 2 and 3, before use, the guide mechanism for ensuring the linearity of the wire entering the die according to the present invention selects a suitable guide die 4 according to the diameter of the wire 100, then mounts the guide die 4 on the cross rail 304, adjusts the transverse position and the longitudinal position of the guide die 4 to make the guide die 4 coaxial with the drawing die 1, then locks the first locking screw 6 and the second locking screw 8, adjusts the adjusting screw 11 to adjust the tension of each cable 13 on the defibrillation block 12 to adjust the cushioning capacity of the defibrillation block 12, finally threads the wire 100, passes the wire 100 around the guide wheel 2, then passes through the through hole 14 and the guide hole 401 in sequence, then passes through the drawing die 1 and is fixed on a traction device (not shown) at the downstream of the drawing die 1.

In the process of drawing the steel wire 100, the steel wire 100 can be subjected to an outward warping phenomenon after bypassing the guide wheel 2, the outward warped steel wire 100 slightly vibrates when being drawn, when the vibrated steel wire 100 enters the defibrillation block 12, the vibrated steel wire collides with the inner wall of the through hole 14 on the defibrillation block 12, the vibration effect is weakened or eliminated, meanwhile, the position of the steel wire 100 is adjusted by the defibrillation block 12, the steel wire then enters the guide hole 401 of the guide die 4, the linear type of the steel wire 100 before entering the drawing die 1 is adjusted through the guidance of the guide hole 401, the steel wire 100 basically enters the drawing die 1 along the axial direction of the drawing die 1, so that the quality problems that the steel wire 100 scrapes and decoppers at the inlet of the drawing die 1, is damaged by drawing, transverse cracks are formed in drawing, the ovality of the steel wire exceeds the standard in the process are solved, and the product quality is improved.

The above embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments in use, and are not intended to limit the invention; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.