Exit die adjustment device for steel cord single filament drawing

Abstract

The utility model relates to steel cord production technical field, more particularly to the export mould adjusting device for steel cord monofilament drawing, include: first board body, the bottom of first board body is equipped with nut, the central position of first board body still is equipped with first wire hole, second board body, the central position of second board body is equipped with second wire hole, three screw rods, the second board body is penetrated and is connected to the nut of first board body, export mould, connect between first board body and second board body, the utility model discloses three independently operated screw rods are arranged in first board body and second board body, make the export mould can produce the inclination of required in front, back, left, right etc.

Description

Technical Field

[0001] This utility model relates to the field of steel cord production technology, and more specifically to an exit die adjustment device for drawing monofilaments of steel cord. Background Technology

[0002] In steel cord drawing production, the process of gradually drawing the incoming steel wire to the required diameter using a series of drawing dies is a mature technology. In this process, a complete die chain is formed from large to small dies, drawing the incoming steel wire to the desired diameter. Dies of different sizes are gradually reduced in size according to different compression rates until the final exit die, ultimately achieving the required diameter. The final physical properties of the steel wire, especially the coil diameter and waviness (also known as wave height or pitch), are key parameters for measuring product quality.

[0003] Loop diameter refers to the diameter of the loop formed by the natural curling of the steel wire, which affects packaging, transportation and subsequent tooling compatibility; warp height reflects the straightness of the steel wire, that is, the degree to which it deviates from the theoretical straight line in its natural state, which directly affects the stability of subsequent deep processing processes such as twisting and rope making and the performance of the final product.

[0004] To ensure the above indicators meet the requirements, production practice shows that the precise adjustment of the final finished product exit mold plays a decisive role. Currently, the industry generally uses a traditional adjustment device, as shown in the instruction manual. Figure 5 As shown, it is commonly referred to as a "two-legged adjuster". The basic structure of this device is to use two steel plate mold frames to clamp the exit mold in the middle, with an adjusting bolt at each end of the mold frame (i.e., the left and right sides).

[0005] During operation, technicians tighten or loosen the two left and right adjustment bolts respectively, forcing the mold frame and the internal mold to tilt to a limited extent, in order to change the stress state of the steel wire when it passes through the mold, thereby intervening in the shape of the steel wire such as the coil diameter.

[0006] However, this two-point adjustment-based mechanical structure has significant limitations. It can only provide tilt adjustment in a single direction (usually left-right), while the morphological defects generated during wire drawing are often multi-dimensional and complex, making it difficult for the device to achieve precise and comprehensive correction. In practice, the adjustment effect is often unsatisfactory and fails to meet process requirements.

[0007] In addition, the installation and commissioning process of the equipment is quite complicated and highly dependent on the personal experience of the operators, which further affects the consistency of production efficiency and product quality. Summary of the Invention

[0008] To address the technical problems existing in the current exit die, this utility model proposes an exit die adjustment device for drawing monofilaments of steel cord, comprising: The first plate has a nut at its bottom and a first wire hole at its center. The second plate has a second wire hole at its center. Three screws pass through the second plate and are connected to the nuts of the first plate; An outlet mold is connected between the first plate and the second plate. The three screws are arranged in an equilateral triangle. By adjusting the number of rotations of each screw, a predetermined angle is formed between the first plate and the second plate, so as to adjust the deviation angle of the outlet mold axis from the radial direction of the first plate at multiple angles.

[0009] Preferably, both the first plate and the second plate are constructed as a disk-shaped structure.

[0010] Preferably, the first plate has a first slot on the side facing the second plate, and the second plate has a second slot on the side facing the first plate, with both ends of the outlet mold respectively inserted into the first slot and the second slot.

[0011] Preferably, the first slot is provided with a gasket, the gasket is located on the end face of the exit mold, and the gasket can generate elastic deformation to cause the axis of the exit mold to deviate from the axis of the first plate.

[0012] Preferably, the outlet mold is constructed as a cylindrical structure, and the outlet mold has a mold hole for the steel wire to pass through.

[0013] Preferably, a spring is fitted on the outer wall of each screw, and the spring is located between the first plate and the second plate.

[0014] Preferably, the screw is configured to be completely disengaged from the nut, thereby separating the first plate and the second plate from each other.

[0015] Compared with the prior art, the advantages of this utility model are: This invention features three independently operable screws on the first and second plates, enabling the exit die to generate the required tilt angle in any direction, such as front, back, left, and right. This design overcomes the limitation of traditional two-point adjusters that can only tilt in one direction. It can accurately compensate for the multi-dimensional and complex morphological defects generated during the drawing process of the steel wire, thereby achieving more precise and effective control over the coil diameter and warp of the steel wire, and effectively improving the morphological quality of the finished steel wire.

[0016] The independently operable screw of this invention has a symmetrical layout on the circumference, and the adjustment logic is clear and intuitive. Operators no longer need to make tedious, experience-based trial-and-error adjustments as with traditional equipment. They only need to make fine adjustments to the corresponding adjustment mechanism according to the actual shape of the steel wire to quickly meet the process requirements. This simplifies the debugging process and ensures the stability of quality between different operators and different batches of products. Attached Figure Description

[0017] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the exit die adjustment device for drawing monofilaments of steel cord shown in this utility model; Figure 2 This is a side view of the exit die adjustment device for drawing monofilaments of steel cord shown in this utility model; Figure 3 This is a schematic diagram showing the removal of the export mold from between the first plate and the second plate, as shown in this utility model. Figure 4 This is a schematic diagram of the cross-sectional structure of the exit die adjustment device for drawing monofilaments of steel cord shown in this utility model; Figure 5 This is a physical image of an export mold adjustment device in existing technology. Detailed Implementation

[0018] To better understand the technical content of this utility model, specific embodiments are provided below in conjunction with the accompanying drawings.

[0019] Combination Figures 1 to 2 As shown, this utility model proposes an outlet die adjustment device for drawing monofilaments of steel cord, including a first plate 10, a second plate 20, three screws 30 and an outlet die 40.

[0020] The bottom of the first plate 10 is provided with a nut 11, and the center of the first plate 10 is also provided with a first wire hole 12. The center of the second plate 20 is provided with a second wire hole 21. Three screws 30 pass through the second plate 20 and are connected to the nut 11 of the first plate 10.

[0021] In an optional embodiment, both the first plate 10 and the second plate 20 are constructed as a disk-shaped structure. Each of the first plate 10 and the second plate 20 has three openings, and the opening positions correspond to each other.

[0022] Specifically, the nut 11 is welded and fixed to the bottom of the first plate 10, corresponding to the position of the opening. When the screw 30 passes through the opening above the second plate 20 in sequence through the opening of the second plate 20 and the opening of the first plate 10 and is connected to the nut 11, the nut at the top of the screw 30 is pressed tightly against the upper end of the second plate 20. Therefore, when the screw 30 is tightened further, the width of the gap 100 between the first plate 10 and the second plate 20 will decrease, and vice versa.

[0023] Thus, the relative angle between the first plate 10 and the second plate 20 can be changed by adjusting the number of rotations of the three screws 30.

[0024] Furthermore, the export mold 40 is connected between the first plate 10 and the second plate 20.

[0025] Specifically, in combination Figures 3 to 4 As shown, the first plate 10 is provided with a first slot 13 on the side facing the second plate 20, and the second plate 20 is provided with a second slot 22 on the side facing the first plate 10. The two ends of the exit mold 40 are respectively inserted into the first slot 13 and the second slot 22.

[0026] This is to maintain the stability of the export mold 40 between the first plate 10 and the second plate 20.

[0027] Furthermore, in combination Figure 4 As shown, a gasket 41 is provided in the first slot 13, and the gasket 41 is located on the end face of the exit mold 40.

[0028] Thus, when one or more screws 30 rotate, the first plate 10 can change its position relative to the second plate 20, for example, from parallel to inclined. At this time, the shim 41 can generate elastic deformation, causing the axis of the exit mold 40 to deviate from the axis of the first plate 10.

[0029] Specifically, the exit mold 40 is constructed as a cylindrical structure, and the exit mold 40 has a mold hole for the steel wire to pass through.

[0030] Thus, when the exit die 40 is adjusted to tilt in a certain direction, the steel wire passing through the die hole will be pre-bent to produce a suitable coil diameter and height.

[0031] In a preferred embodiment, the three screws 30 are arranged in an equilateral triangle. By adjusting the number of rotations of each screw 30, a predetermined angle is formed between the first plate 10 and the second plate 20, so as to adjust the deviation angle of the outlet mold 40 axis from the radial direction of the first plate 10 at multiple angles.

[0032] It should be understood that a stable planar support system is formed by three screws 30 evenly distributed on the circumference (in an equilateral triangle distribution). By tightening or loosening these three screws 30 respectively, the exit mold 40 can be tilted in any direction of 360 degrees (such as forward tilt, backward tilt, left tilt, right tilt, and compound tilt in any direction). This can accurately compensate for any deviation in diameter / height caused by mold wear, uneven wire material, or previous processes.

[0033] Furthermore, a spring 31 is fitted on the outer wall of each screw 30, with the spring 31 located between the first plate 10 and the second plate 20. In this way, the elasticity of the spring 31 generates a preload between the screw 30 and the nut 11, preventing loosening or displacement due to vibration, thus ensuring that the exit mold 40 remains in the ideal position after angle adjustment.

[0034] Furthermore, the screw 30 is configured to be completely disengaged from the nut 11, thereby separating the first plate 10 and the second plate 20 from each other.

[0035] Thus, when it is necessary to replace the exit mold 40, any two screws 30 can be completely removed, leaving only one screw 30 connecting the first plate 10 and the second plate 20. At this time, the first plate 10 and the second plate 20 can rotate around the axis of the remaining screw 30, exposing the position of the exit mold 40, which is convenient for replacing the exit mold 40.

[0036] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. An exit die adjustment device for drawing monofilaments of steel cord, characterized in that, include: The first plate (10) has a nut (11) at its bottom and a first wire hole (12) at its center. The second plate (20) has a second wire hole (21) at its center. Three screws (30) pass through the second plate (20) and are connected to the nuts (11) of the first plate (10); The outlet mold (40) is connected between the first plate (10) and the second plate (20); The three screws (30) are arranged in an equilateral triangle. By adjusting the number of rotations of each screw (30), a predetermined angle is formed between the first plate (10) and the second plate (20) to adjust the deviation angle of the outlet mold (40) axis from the radial direction of the first plate (10) at multiple angles.

2. The exit die adjustment device for drawing monofilaments of steel cord according to claim 1, characterized in that, Both the first plate (10) and the second plate (20) are constructed as disk-shaped structures.

3. The exit die adjustment device for drawing monofilaments of steel cord according to claim 1, characterized in that, The first plate (10) has a first slot (13) on one side facing the second plate (20), and the second plate (20) has a second slot (22) on one side facing the first plate (10). The two ends of the outlet mold (40) are respectively inserted into the first slot (13) and the second slot (22).

4. The exit die adjustment device for drawing monofilaments of steel cord according to claim 3, characterized in that, The first slot (13) is provided with a gasket (41), which is located on the end face of the exit mold (40). The gasket (41) can generate elastic deformation to make the axis of the exit mold (40) deviate from the axis of the first plate (10).

5. The exit die adjustment device for drawing monofilament of steel cord according to claim 1, characterized in that, The outlet mold (40) is constructed as a cylindrical structure and has a mold hole for the steel wire to pass through.

6. The exit die adjustment device for drawing monofilaments of steel cord according to claim 1, characterized in that, A spring (31) is fitted on the outer wall of each screw (30), and the spring (31) is located between the first plate (10) and the second plate (20).

7. The exit die adjustment device for drawing monofilaments of steel cord according to claim 1, characterized in that, The screw (30) is configured to be completely disengaged from the nut (11), so that the first plate (10) and the second plate (20) can be separated from each other.

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