Superfine tungsten wire rope stranding method, rope stranding method and superfine tungsten wire rope

Abstract

The invention discloses a stranding method and a rope combining method of an ultra-thin tungsten wire rope and the ultra-thin tungsten wire rope. The stranding method comprises the following steps: step A, respectively providing a diamond mold and a plurality of monofilament yarn rollers; step B, twisting monofilaments on a plurality of monofilament yarn rollers together, and cutting off the monofilaments in a flush manner; c, heating rope heads of the monofilaments to harden the monofilaments; d, when the monofilaments are not cooled to the normal temperature state, vaseline is smeared on rope heads of the monofilaments, bonding force is formed between the monofilaments of the rope heads, and the outer portions of the rope heads are provided with lubricating surfaces; e, the rope heads of the monofilaments are inserted into the rope holes of the diamond die, and the monofilaments penetrate through the rope holes to form rope strands; f, the rope strand is fixed to a traction mechanism, and the part, between the diamond mold and the traction mechanism, of the rope strand is in a straightened state; and G, the traction mechanism is driven to pull the rope strands, and stranding is completed. According to the stranding method of the superfine tungsten filament rope and the rope stranding method, the problem that stranding is difficult due to the fact that existing monofilaments are soft and extremely small in diameter can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of tungsten wire rope production equipment, in particular to a stranding method and a rope closing method of ultrafine tungsten wire ropes and an ultrafine tungsten wire rope. Background Art

[0002] Ultrafine tungsten wire rope (tungsten steel wire rope) is an important driving material in the process of medical interventional surgery. It is extremely important for the operation of high-precision and cutting-edge medical equipment. It is also an important material in my country's current medical industry, reflecting the core competitiveness in this field.

[0003] The diameter of the single wire of the ultra-fine tungsten wire rope is about 0.04mm. The ultra-fine tungsten wire rope is formed by twisting the single wires into rope strands, and then further twisting multiple rope strands into tungsten wire ropes. Taking 7 single wires twisted together as an example, the diameter of the tungsten wire rope strands after twisting does not exceed 0.12mm (the rope hole diameter of the diamond mold used for twisting is 0.12mm). However, due to the extremely small diameter of the single wire of the tungsten wire rope, it is almost difficult to distinguish with the naked eye, and the single wire of the tungsten wire rope is very soft. It is very difficult to load the 7 single wires into the rope hole of the diamond mold together. Usually, the operator needs to adjust repeatedly, twist the 7 single wires together, and then insert the 7 single wires into the rope hole of the diamond mold at the same time. In fact, since the diameter of the rope hole only allows 7 single wires to pass, when the 7 single wires are inserted into the diamond mold together, usually only 5-6 single wires can be loaded. At this time, the remaining space of the rope hole of the diamond mold is limited, and it is difficult to align the remaining 1-2 single wires with the rope hole and insert them. Summary of the invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a stranding method for ultrafine tungsten wire rope, a rope stranding method and an ultrafine tungsten wire rope, so as to solve the problem that it is difficult for multiple single wires to pass through the rope hole of a diamond mold at the same time during the stranding process of the existing ultrafine tungsten wire rope.

[0005] In order to solve the above technical problems, the present invention provides a method for stranding ultrafine tungsten wire rope (tungsten steel wire rope), comprising:

[0006] Step A, providing a diamond mold and a plurality of monofilament wire rollers respectively;

[0007] Step B, twisting the monofilaments on a plurality of monofilament rollers together and cutting them evenly;

[0008] Step C, heating the rope ends of the monofilaments to harden the monofilaments, so that the rope ends can be twisted together more easily without deformation;

[0009] Step D: before the monofilaments are cooled to room temperature, vaseline is applied to the ends of the monofilaments to form bonding force between the monofilaments at the ends of the ropes and to provide a lubricated surface on the outside of the ends of the ropes, and then the ends of the ropes are further twisted to keep the monofilaments together;

[0010] Step E, inserting the rope ends of the converged monofilaments into the rope holes of the diamond mold, and passing the monofilaments through the rope holes to form rope strands;

[0011] Step F, fixing the rope strands on the traction mechanism, and making the rope strands between the diamond mold and the traction mechanism in a straightened state;

[0012] Step G: driving the traction mechanism to pull the rope strands, thereby completing the stranding.

[0013] Before step E, the step of applying vaseline to the rope hole of the diamond mold is also included.

[0014] The diamond mold is a mold with a circular rope hole in the center, and the entire diamond mold is in a round cake shape or a square shape.

[0015] Both ends of the rope hole are respectively provided with concave cone surfaces.

[0016] In the step C, the heating temperature is 500-1000°C.

[0017] The diameter of the monofilament is 0.04 mm, and the diameter of the rope hole of the diamond mold is 0.12 mm.

[0018] The number of the monofilaments is 7; when twisting, there is 1 monofilament in the center and 6 monofilaments in the circumferential direction.

[0019] The present invention also provides a method for assembling an ultra-fine tungsten wire rope, comprising: providing a plurality of strands, and twisting the plurality of strands to form a tungsten wire rope.

[0020] The present invention also provides a method for closing an ultrafine tungsten wire rope, including stranding, primary closing and secondary closing, wherein the stranding adopts the stranding method described above, a primary closing is performed on a plurality of strands formed after stranding, and a secondary closing is performed on a plurality of strands after the primary closing to form a tungsten wire rope.

[0021] The present invention also provides an ultra-fine tungsten wire rope, which is formed by the above rope-making method.

[0022] The method for plying and closing the ultrafine tungsten wire rope provided by the present invention can overcome the problem that the existing monofilaments are relatively soft and have extremely fine diameters, which makes it difficult to ply the wires. By adding the monofilaments and coating them with vaseline, the vaseline can be better integrated with the surface of the monofilaments after the monofilaments are heated and hardened, thereby better exerting its lubricating effect, and forming a better bonding effect between the monofilaments to prevent the monofilaments from dispersing after twisting, so that the monofilaments can be more easily entered into the rope holes of the diamond mold, so that the plying work can be completed smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention is a flowchart of the method for stranding the ultra-fine tungsten wire rope.

[0024] Figure 2 It is a structural diagram of the diamond mold described in the present invention.

[0025] Figure 3 It is a structural diagram of the diamond mold described in the present invention. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] like Figure 1 As shown, this embodiment takes 7 monofilaments as an example and provides a method for stranding an ultra-fine tungsten wire rope (tungsten steel wire rope), including:

[0030] Step A: Provide diamond molds (combined with Figure 2-3 ) and 7 tungsten steel wire single wire rollers; the 7 single wire rollers are installed on a wire supply rack, the wire supply rack is provided with a plurality of separately arranged wire reels, the single wire rollers are installed on the corresponding reels, the single wire on each single wire roller is pulled out, and the ends are gathered together;

[0031] Step B, twisting the monofilaments on the seven monofilament rollers together to form a hexagonal layout close to a circle, wherein one monofilament is in the middle, and the other six monofilaments are arranged around the monofilament in the middle, and then cut off at the same ends;

[0032] Step C, heating the rope ends of the monofilament to harden the rope ends of the monofilament, and cutting them off flush;

[0033] Step D: before the monofilaments are cooled to room temperature, vaseline is applied to the ends of the monofilaments to form bonding force between the monofilaments at the ends of the ropes and to provide a lubricated surface on the outside of the ends of the ropes, and then the ends of the ropes are further twisted to keep the monofilaments together;

[0034] Step E, inserting the rope ends of the converged monofilaments into the rope holes of the diamond mold, and passing the monofilaments through the rope holes to form rope strands; the diamond mold can be fixed on a corresponding auxiliary fixing device;

[0035] Step F, fix the rope strands on the traction mechanism, and make the rope strands between the diamond mold and the traction mechanism in a straightened state; the traction mechanism can adopt a winding traction mechanism, which is used to step G, drive the traction mechanism to pull the rope strands, thereby completing the stranding.

[0036] Wherein: before step E, the method further includes applying vaseline to the rope hole of the diamond mold. After the rope hole of the diamond mold is applied with vaseline, it can also assist the lubrication of the monofilament, so that the monofilament can enter the rope hole more smoothly.

[0037] like Figure 2-3 As shown, the diamond mold is a mold with a circular rope hole in the center, and the entire diamond mold is in a round cake shape or a square shape.

[0038] Both ends of the rope hole are respectively provided with concave cone surfaces, and the concave cone surfaces can guide the monofilament rope head, so that the monofilament can enter the rope hole more easily.

[0039] In the step C, the heating temperature is 500-1000° C., and fire or other physical heating methods can be used.

[0040] The diameter of the monofilament is 0.04 mm, and the diameter of the rope hole of the diamond mold is 0.12 mm.

[0041] The number of the monofilaments is 7; when twisting, there is 1 monofilament in the center and 6 monofilaments in the circumferential direction.

[0042] This embodiment also provides a method for assembling an ultra-fine tungsten wire rope, including: providing a plurality of strands, and twisting the plurality of strands to form a tungsten wire rope. The strands are assembled by the method for assembling provided in the above embodiment. The method for assembling a rope provided in this embodiment is to assemble the rope by another assembling on the basis of the first assembling.

[0043] This embodiment also provides a method for closing an ultra-fine tungsten wire rope, including plying, one-time closing and two-time closing, wherein plying adopts the plying method described above, and a plurality of plying strands are closed once, and a plurality of plying strands are closed twice to form a tungsten wire rope. The method for closing a rope provided in this embodiment adopts one-time plying and two-time closing to form a tungsten wire rope.

[0044] The method for plying and closing the ultrafine tungsten wire rope provided by the present invention can overcome the problem that the existing monofilaments are relatively soft and have extremely fine diameters, which makes it difficult to ply the wires. By adding the monofilaments and coating them with vaseline, the vaseline can be better integrated with the surface of the monofilaments after the monofilaments are heated and hardened, thereby better exerting its lubricating effect, and forming a better bonding effect between the monofilaments to prevent the monofilaments from dispersing after twisting, so that the monofilaments can be more easily entered into the rope holes of the diamond mold, so that the plying work can be completed smoothly.

[0045] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for stranding ultra-fine tungsten wire ropes, characterized in that: include: Step A, providing a diamond mold and a plurality of monofilament wire rollers respectively; Step B, twisting the monofilaments on a plurality of monofilament rollers together and cutting them evenly; Step C, heating the rope end of the monofilament to harden the monofilament; Step D: before the monofilaments are cooled to room temperature, vaseline is applied to the rope ends of the monofilaments to form bonding force between the monofilaments at the rope ends and to provide a lubricated surface on the outside of the rope ends; Step E, inserting the rope ends of the converged monofilaments into the rope holes of the diamond mold, and passing the monofilaments through the rope holes to form rope strands; Step F, fixing the rope strands on the traction mechanism, and making the rope strands between the diamond mold and the traction mechanism in a straightened state; Step G: driving the traction mechanism to pull the rope strands, thereby completing the stranding.

2. The method for plying according to claim 1, characterized in that: Before step E, the step of applying vaseline to the rope hole of the diamond mold is also included.

3. The method for plying according to claim 1, characterized in that: The diamond mold is a mold with a circular rope hole in the center, and the entire diamond mold is in a round cake shape or a square shape.

4. The method for plying according to claim 1, characterized in that: Both ends of the rope hole are respectively provided with concave cone surfaces.

5. The method for plying according to claim 1, characterized in that: In the step C, the heating temperature is 500-1000°C.

6. The method for plying according to claim 1, characterized in that: The diameter of the monofilament is 0.04 mm, and the diameter of the rope hole of the diamond mold is 0.12 mm.

7. The method for plying according to claim 1, characterized in that: The number of the monofilaments is 7; when twisting, there is 1 monofilament in the center and 6 monofilaments in the circumferential direction.

8. A method for closing an ultra-fine tungsten wire rope, characterized in that: include: A plurality of strands are provided, and the plurality of strands are twisted together to form a tungsten wire rope, wherein the strands are made by the twisting method according to any one of claims 1 to 7.

9. A method for closing an ultra-fine tungsten wire rope, characterized in that: The invention comprises stranding, primary rope closing and secondary rope closing, wherein the stranding adopts the stranding method according to any one of claims 1 to 7, a primary rope closing is performed on a plurality of strands formed after stranding, and a secondary rope closing is performed on a plurality of strands after primary rope closing to form a tungsten wire rope.

10. An ultra-fine tungsten wire rope, characterized in that: It is formed by the rope closing method described in claim 8 or 9.

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