Wire separating wheel device capable of reducing wet-tensile broken wires

Abstract

The utility model relates to a wire separating wheel device for reducing wet pulling broken wires. The wire separating wheel device comprises a wire separating wheel, a bracket fixed on a wire drawing machine, a supporting plate connected to the bracket, a shaft bracket arranged above the supporting plate, and a supporting shaft which extends out of the shaft bracket and penetrates through the wire separating wheel, guide rails vertically extending upwards are arranged on the two sides of the upper end face of the support, protruding sliding blocks corresponding to the guide rails are arranged on the two sides of the supporting plate, the sliding blocks are placed in the guide rails, and a plurality of elastic components are connected between the lower end face of the supporting plate and the upper end face of the support. And the elastic force of the elastic component prevents the support plate from moving along the guide rail. According to the utility model, the wire breaking rate of the wire drawing machine is reduced through a non-fixed structure.

Description

Technical Field

[0001] The utility model belongs to the field of metal processing, and in particular relates to a wire splitting wheel device that reduces wet wire breakage. Background Art

[0002] Wet drawing of wire drawing machine is a metal processing process, which is usually used to draw and process metal wire. In wet drawing, the metal wire is drawn by immersing it in lubricating liquid to reduce the friction between the metal wire and the die, so that it is easier to draw out fine wire.

[0003] In the wet drawing process, the wire is first immersed in a lubricating fluid and then drawn through a series of dies. The role of the lubricating fluid is to reduce the friction between the wire and the die, thereby reducing heat and wear during the drawing process, and it also helps to remove oxides and impurities on the wire. This can obtain a more uniform and smooth wire, improving the efficiency and quality of wire drawing.

[0004] Wet drawing is mainly used in the production of high-carbon steel wires such as steel cord and diamond wire busbar. It uses a water tank wire drawing machine with multiple sets of drawing dies to achieve continuous drawing of steel wires. It has significant advantages in producing steel wires with a diameter of less than 100um, so it is widely used in the steel wire manufacturing industry. However, with the continuous increase in drawing speed, the stability of the water tank wire drawing machine has also shown some shortcomings, especially for wire breakage. Wire breakage is a common abnormal phenomenon in the drawing process. Other types of wire drawing machines have wire breakage locations concentrated in the mold during drawing, while water tank wire drawing machines also have wire breakage at the traction wheel. Usually, wire breakage at the traction wheel can account for more than one-third. Wire breakage has a serious impact on steel wire drawing production, not only affecting product quality but also causing a decrease in production efficiency. Therefore, how to solve or reduce wire breakage at the traction wheel of the water tank wire drawing machine has become a problem. Utility Model Content

[0005] The utility model aims to provide a wire dividing wheel device for reducing wet wire breakage, so as to solve the technical problem of wet wire breakage in a wire drawing machine.

[0006] In order to achieve the above-mentioned purpose, the specific technical scheme of a wire splitting wheel device for reducing wet wire breakage of the utility model is as follows:

[0007] A wire splitting wheel device for reducing wet wire breakage comprises a wire splitting wheel, a bracket fixed on a wire drawing machine, a support plate connected to the bracket, an axle frame arranged above the support plate, and a support shaft extending from the axle frame and passing through the wire splitting wheel;

[0008] Guide rails extending vertically upward are arranged on both sides of the upper end surface of the bracket, and protruding sliders are arranged on both sides of the support plate corresponding to the guide rails. The sliders are placed in the guide rails, and a plurality of elastic components are connected between the lower end surface of the support plate and the upper end surface of the bracket. The elastic force of the elastic components prevents the support plate from moving along the guide rails.

[0009] As a further improvement of the utility model, a bearing is sleeved on the support shaft, and the line-dividing wheel is rotatably connected to the bearing.

[0010] As a further improvement of the present invention, the bearing is sleeved on the support shaft through an axial hole, and the support shaft can move in the axial hole.

[0011] As a further improvement of the present invention, the connecting portion of the support shaft inserted into the shaft hole is cylindrical, the shaft hole is elliptical, and the curvature of both ends of the ellipse matches the connecting portion.

[0012] As a further improvement of the utility model, the support shaft is provided with a limiting portion between the connecting portion and the shaft frame, and a stopper is provided at the top end through the shaft hole, and the limiting portion and the stopper limit the line dividing wheel from being separated from the connecting portion.

[0013] As a further improvement of the present invention, a fixing portion is provided at the end of the support shaft, and the fixing portion cooperates with the limiting portion to fix the support shaft on the shaft frame.

[0014] As a further improvement of the present invention, the fixing portion and the limiting portion are detachably connected to achieve installation of the support shaft on the shaft frame.

[0015] As a further improvement of the present invention, the elastic component is a spring vertically arranged between the support plate and the bracket.

[0016] As a further improvement of the present invention, the shaft bracket is detachably mounted on the support plate.

[0017] Beneficial effects:

[0018] By providing a support part elastically connected to the bracket, automatic adjustment of the tension at the traction wheel is achieved, reducing the fluctuation of the tension at the traction wheel, thereby reducing the frequency of necking fractures here and reducing the overall wet wire breakage rate.

[0019] By providing the guide rail, the support part can move vertically in the guide rail, the movement direction of the support part is limited, and displacement in the front, back, left and right directions is avoided.

[0020] By setting the shaft hole larger than the supporting shaft connection part, the movable placement of the wire dividing wheel is realized, and the automatic adjustment of the tension is further realized to keep the winding tension stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a wire splitting wheel device for reducing wet wire breakage according to the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the line dividing wheel of the utility model;

[0023] Figure 3 This is a schematic diagram of the support, support plate and support shaft structure of the utility model;

[0024] Figure 4 This is the drawing tension measurement diagram of 45um steel wire;

[0025] Explanation of the markings in the figure: 10, line dividing wheel; 11, bearing; 12, shaft hole; 20, bracket; 21, guide rail; 22, elastic component; 30, support plate; 31, slider; 40, shaft frame; 50, support shaft; 51, connecting part; 52, stopper. DETAILED DESCRIPTION

[0026] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0027] Implementation example:

[0028] Taking the conventional water tank wire drawing machine as an example, during the drawing process, the steel wire must slide relative to the reel, which is a necessary drawing condition for the water tank wire drawing machine. This is because during the drawing process, if the die hole wears unevenly, the second volume of the steel wire will change. The water tank wire drawing machine can neither adapt to the change of the second volume of the steel wire by adjusting the amount of accumulated wire on the reel like the accumulation wire drawing machine, nor can it adapt to the change of the second volume of the steel wire by adjusting the speed of the reel like the straight-in wire drawing machine. In the absence of any adjustment device, the water tank wire drawing machine automatically adjusts the tension of the steel wire by sliding the steel wire relative to the reel, so that it does not break the wire and accumulate the wire, and ensures the normal drawing of the steel wire. Inside the water tank wire drawing machine, sliding drawing plays the main deformation role. There is no drawing outside the water tank wire drawing machine, that is, outside the outlet die, only the winding tension of the traction wheel and the guide wheel. After the steel wire is out of the die, there is no deformation or slippage at the traction wheel and the guide wheel, and finally it is wound to the take-up wheel. For the internal slip drawing of the water tank type wire drawing machine, the machine elongation and slip coefficient together form a slip system to adjust the drawing speed to adapt to the change of tension. However, for the external traction wheel, there is no slip, that is to say, there is no automatic adjustment measure for the change of tension. According to the observation of the broken wire fracture at the traction wheel collected in production, the necking fracture is a more common fracture. This type of fracture is mainly caused by the pulling force applied to the steel wire being higher than the breaking force of the steel wire itself, that is, the tension exceeds the resistance of the steel wire. According to the drawing theory analysis, the diameter of the steel wire no longer changes after it is ejected from the mold, so the low tension under normal winding conditions should not cause wire breakage at the traction wheel. But in fact, the frequent occurrence of necking fractures at the traction wheel indicates that there are changes in tension here, such as Figure 4 As shown in the figure, it can be seen that there are fluctuations in different machines at different drawing speeds. These fluctuations may be caused by the combined effects of molds, lubrication and steel wires, and such fluctuations are inevitable. These unstable tension fluctuations cause unstable stress states of the steel wires. There is a certain probability that a certain section of the steel wire performance weakness will encounter a situation where the tension fluctuation is too large. At this time, the excessive stress state will cause excessive drawing deformation of the steel wire, which will cause necking and finally breakage.

[0029] In order to reduce the impact of the fluctuation of the winding tension at the traction wheel, the automatic adjustment of the winding tension at the traction wheel is realized mainly by improving the split wire wheel from a fixed type to a non-fixed type, so that the tension acting on the steel wire remains relatively stable. When the winding tension at the traction wheel fluctuates, the split wire wheel changes the distance from the traction wheel by changing its position up and down, thereby changing the tension on the traction wheel to stabilize the tension on the steel wire and reduce the impact of the tension fluctuation on the steel wire.

[0030] like Figure 1As shown, a wire splitting wheel device for reducing wet wire breakage includes a wire splitting wheel 10, a bracket 20, a support plate 30, an axle frame 40, and a support shaft 50. The bracket 20 is fixed to the wire drawing machine by bolts, the axle frame 40 is fixed to the support plate 30 by bolts, and the support shaft 50 extends from the axle frame 40 through the wire splitting wheel 10.

[0031] In this embodiment, the elastic component 22 is a spring, which is fixed on the upper surface of the bracket 20. Vertically upward guide rails 21 are provided on both sides of the upper surface of the bracket 20. Grooves are provided on the guide rails 21 facing each other. Outwardly protruding sliders 31 are provided on both sides of the support plate 30. The sliders 31 match the size of the grooves. The sliders 31 are placed in the grooves and the lower end surface of the support plate 31 is connected to the spring, so that the buffering of the support frame 30 in the vertical direction is realized, and the elastic force prevents the movement of the support plate 30 in the direction of the guide rails. The guide rails 21 are used to limit the range of movement of the support plate 30, so that the movement of the support plate 30 in the vertical direction is only realized, and its displacement in the front-back and left-right directions is prevented.

[0032] like Figure 2 As shown, a bearing 11 is provided at the center of the dividing wheel 10 , and the dividing wheel 10 rotates relative to the bearing 11 . The shaft hole 12 of the bearing 11 is elliptical, and the bearing 11 is sleeved on the connecting portion 51 of the support shaft 50 through the shaft hole 12 .

[0033] like Figure 3 As shown, in this embodiment, the fixing portion 54 is a bolt, which is matched with the screw hole on the end face of the limiting portion 53 to fix the support shaft 50 on the shaft frame. The connecting portion 51 is cylindrical and matches the elliptical arc size of the shaft hole 12. The dividing wheel 10 is inserted into the connecting portion 51. The limiting portion 53 and the stopper 52 are respectively abutted against both sides of the shaft hole 12, and their sizes are larger than the aperture of the shaft hole 12, so as to limit the dividing wheel 10 on the support shaft 50.

[0034] When in use, the oval shaft hole 12 enables the water tank type wire drawing machine's wire dividing wheel to move freely in a small range in the vertical direction, and at the same time, the support plate 30 achieves buffering under the prevention of the vertical elastic force, thereby bringing about automatic adjustment of the tension of the traction wheel, which can keep the winding tension stable to a certain extent. Under this modification, the experimental machine of the water tank type wire drawing machine is in stable production, the proportion of broken wires at the traction wheel is reduced from one-third to one-fifth, and the number of necking fractures is significantly reduced.

[0035] In order to reduce the impact of the fluctuation of the winding tension at the traction wheel, the automatic adjustment of the winding tension at the traction wheel is achieved by improving the split wire wheel 10 from a fixed type to a non-fixed type, so that the tension acting on the steel wire remains relatively stable. When the winding tension at the traction wheel fluctuates, the split wire wheel 10 changes the distance from the traction wheel by changing its position up and down, thereby changing the tension on the traction wheel to stabilize the tension on the steel wire and reduce the impact of the tension fluctuation on the steel wire.

[0036] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A wire splitting wheel device for reducing wet wire breakage, characterized in that: It includes a wire splitting wheel, a bracket fixed on the wire drawing machine, a support plate connected to the bracket, an axle frame arranged above the support plate, and a support shaft extending from the axle frame and passing through the wire splitting wheel; Guide rails extending vertically upward are arranged on both sides of the upper end surface of the bracket, and protruding sliders are arranged on both sides of the support plate corresponding to the guide rails. The sliders are placed in the guide rails, and a plurality of elastic components are connected between the lower end surface of the support plate and the upper end surface of the bracket. The elastic force of the elastic components prevents the support plate from moving along the guide rails.

2. The wire splitting wheel device for reducing wet wire breakage according to claim 1, characterized in that: A bearing is sleeved on the support shaft, and the line-dividing wheel is rotatably connected to the bearing.

3. The wire splitting wheel device for reducing wet wire breakage according to claim 2, characterized in that: The bearing is sleeved on the support shaft through an axial hole, and the support shaft can move in the axial hole.

4. The wire splitting wheel device for reducing wet wire breakage according to claim 3, characterized in that: The connecting portion of the support shaft inserted into the shaft hole is cylindrical, and the shaft hole is elliptical, and the curvature of both ends of the ellipse matches the connecting portion.

5. The wire splitting wheel device for reducing wet wire breakage according to claim 4, characterized in that: The support shaft is provided with a limiting portion between the connecting portion and the shaft frame, and a stopper is provided at the top end of the shaft hole. The limiting portion and the stopper limit the line dividing wheel from being separated from the connecting portion.

6. The wire splitting wheel device for reducing wet wire breakage according to claim 5, characterized in that: A fixing portion is provided at the end of the support shaft, and the fixing portion cooperates with the limiting portion to fix the support shaft on the shaft frame.

7. The wire splitting wheel device for reducing wet wire breakage according to claim 6, characterized in that: The fixing portion is detachably connected to the limiting portion to achieve installation of the support shaft on the shaft frame.

8. The wire splitting wheel device for reducing wet wire breakage according to claim 1, characterized in that: The elastic component is a spring vertically arranged between the support plate and the bracket.

9. The wire splitting wheel device for reducing wet wire breakage according to claim 1, characterized in that: The shaft bracket is detachably mounted on the support plate.

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