Device for removing titanium wire lubricating oil on line

Abstract

The utility model relates to a device for removing titanium wire lubricating oil on line, and belongs to the field of metal wire machining. The structure comprises a vacuum argon filling cabin (3), a vacuumizing system (11), an inflation system (10) and a laser cleaning system, the vacuum argon filling cabin (3) is of a hollow structure, a wire inlet (9) and a wire outlet (8) are formed in the two ends of the vacuum argon filling cabin (3), a wire guide wheel (7) is arranged on the connecting line side of the wire inlet (9) and the wire outlet (8), and the laser cleaning system comprises a laser cleaning gun head (1) arranged at the wire guide wheel (7). A muzzle of the laser cleaning gun head (1) is over against a connecting line of the wire inlet (9) and the wire outlet (8), and the vacuumizing system (11) and the inflating system (10) are respectively communicated with the vacuum argon filling cabin body (3). The device irradiates the surface of the wire through a laser beam, residual lubricating oil is gasified or decomposed, and the surface of the wire is cleaned. The problems that a lubricant on the surface of a drawn titanium wire (2) cannot be completely removed through existing ultrasonic cleaning, and the product quality is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of device for removing titanium wire lubricating oil on line, belong to metal wire material processing field. BACKGROUND

[0002] Titanium and titanium alloy wire material is usually prepared by drawing method. Including hot drawing and cold drawing two processes. Hot drawing is to heat the wire material to drawing temperature, and then reduce the diameter by fixed die drawing. Cold drawing is carried out at room temperature. Due to high strength and high hardness, cold drawing of titanium alloy wire material is difficult to achieve by fixed die drawing. The preferred cold drawing method is roller die drawing. Compared with hot drawing process, the cold drawing method using roller die can not only prepare high-precision and high-quality titanium wire products, but also has the advantage of high efficiency, with a drawing rate of 3-8 times that of hot drawing. Roller die drawing is an advanced wire diameter reduction technology.

[0003] Although the roller die drawing has high reduction efficiency, the overall preparation efficiency of titanium wire products is still low. The reason is that after multiple cold drawing, intermediate annealing is required. Titanium metal has active chemical properties, and the wire material is easy to oxidize when heated. The annealing heat treatment needs to be carried out in a vacuum condition, which is inherently low in efficiency. In addition, in order to prevent contamination of the wire material and the vacuum furnace barrel, the titanium wire needs to be cleaned before entering the vacuum furnace to remove the lubricating oil on its surface. This process takes a long time. Currently, there are usually no titanium and titanium alloy wire products on the market, and the delivery cycle of custom-made titanium wire, especially fine wire products, is usually more than 20 days.

[0004] Improving the efficiency of the roller die drawing wire surface lubricating oil removal process is an important way to improve the overall efficiency of titanium wire production. Lubricating oil is essential during titanium wire drawing. However, before vacuum annealing, the lubricating oil should be completely removed, otherwise the lubricating oil will decompose into carbon-containing gas or carbon in the vacuum furnace, causing titanium wire to increase carbon and the furnace barrel to accumulate carbon. Currently, the common method for removing lubricating oil from the surface of titanium wire is ultrasonic cleaning: water is used as the medium, and ultrasonic vibration is applied to make the lubricating oil fall off under the action of ultrasonic cavitation effect, and then the water is dried. However, it has been proven that the ultrasonic cleaning method cannot completely remove the lubricating agent on the surface of the drawn titanium wire. Even if the method of reducing the in-out line speed of ultrasonic cleaning and cleaning multiple times is adopted, there is still a small amount of lubricating oil on the surface of the titanium wire, which will have a negative impact on the quality of the titanium wire during vacuum annealing and the furnace barrel. Moreover, for titanium wire delivered in a drawn state, the surface lubricating oil will always exist, which will seriously affect the quality. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is that the existing ultrasonic cleaning method cannot completely remove the lubricating agent on the surface of the drawn titanium wire, affecting the product quality.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an online device for removing lubricating oil from titanium wire, including a vacuum argon-filled chamber, a vacuum pumping system, a gas filling system, and a laser cleaning system. The vacuum argon-filled chamber is a hollow structure sealed at both ends, and has a wire inlet and a wire outlet at both ends. Several guide wheels are arranged on the side connecting the wire inlet and the wire outlet. The laser cleaning system includes a laser cleaning gun head, which is arranged at the guide wheels inside the vacuum argon-filled chamber, and the nozzle of the laser cleaning gun head is directly facing the line connecting the wire inlet and the wire outlet. The vacuum pumping system and the gas filling system are respectively connected to the vacuum argon-filled chamber.

[0007] The laser cleaning gun head described in the above structure consists of two or three parts, which are evenly spaced in a circular pattern.

[0008] In the above structure, the side wall of the vacuum argon-filled chamber is provided with a vacuuming interface and a gas filling interface at intervals. The vacuuming interface is connected to the vacuuming system, and the gas filling interface is connected to the gas filling system.

[0009] In the above structure, the guide wheel is located 10 to 200 mm in front of and behind the laser cleaning gun head.

[0010] In the above structure, ball valves for sealing are provided at the inlet and outlet of the wire.

[0011] The vacuum argon-filled chamber described above is equipped with a wire feeding device at its feed end.

[0012] Furthermore, the vacuum argon-filled chamber described above is equipped with a take-up device at its discharge end.

[0013] The vacuum argon-filled chamber described in the above structure is a rectangular shell welded from steel plates or a cylinder welded from steel pipes and end caps.

[0014] The beneficial effects of this utility model are: this structure can achieve the purpose of efficiently removing residual surface lubricating oil from drawn titanium wire; the device is simple and occupies a small area. It is installed at the end of the ultrasonic cleaning line, and its cleaning operation is carried out simultaneously with the ultrasonic cleaning process. It can not only make up for the defects of ultrasonic cleaning, but also appropriately increase the ultrasonic cleaning feed speed after the installation of this device, thereby improving the wire cleaning efficiency and breaking the bottleneck of the cleaning process limiting the overall efficiency of wire preparation. Attached Figure Description

[0015] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0016] Fig. 2 This is a schematic diagram of the internal structure of the vacuum argon-filled chamber of this utility model;

[0017] Fig. 3This is a schematic diagram showing the arrangement of the three laser cleaning gun heads of this utility model;

[0018] Fig. 4 This is a schematic diagram showing the arrangement of the two laser cleaning gun heads of this utility model.

[0019] In the diagram: 1. Laser cleaning gun head; 2. Titanium wire; 3. Vacuum argon-filled chamber; 4. Connector; 5. Vacuum interface; 6. Gas filling interface; 7. Guide wheel; 8. Wire outlet; 9. Wire inlet; 10. Gas filling system; 11. Vacuum system; 12. Wire feeding device; 13. Wire taking-up device. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figs. 1 to 4As shown, this utility model discloses an online device for removing lubricating oil from titanium wire, comprising a vacuum argon-filled chamber 3, a vacuuming system 11, a gas filling system 10, and a laser cleaning system. The vacuum argon-filled chamber 3 is a hollow structure sealed at both ends, with a wire inlet 9 and a wire outlet 8 at each end. Several guide wheels 7 are arranged on the side connecting the wire inlet 9 and the wire outlet 8. The laser cleaning system includes a laser cleaning gun head 1, which is positioned within the vacuum argon-filled chamber 3 at the guide wheels 7, with the nozzle of the laser cleaning gun head 1 directly facing the line connecting the wire inlet 9 and the wire outlet 8. The vacuuming system 11 and the gas filling system 10 are respectively connected to the vacuum argon-filled chamber 3. Those skilled in the art will understand that this structure mainly consists of the vacuum argon-filled chamber 3, the vacuuming system 11, the gas filling system 10, and the laser cleaning system. The vacuum argon-filled chamber 3 is a sealable, vacuum-evacuated, and protective gas-filled box. The laser cleaning gun head 1 is mounted on the chamber wall and fixed by connectors 4. The vacuum system 11 and the gas filling system 10 consist of a vacuum pump, valves, and a gas source. The vacuum pump is a mechanical pump with a limiting pressure <10Pa. The gas source is argon with a purity ≥99.999%. The laser cleaning system consists of a fiber laser, an optical fiber, and a laser cleaning gun head 1. The laser power is >100W, the scanning width is 0-10mm, and the scanning direction is perpendicular to the axis of the titanium wire 2. Two laser cleaning guns spaced 180 degrees apart or three laser cleaning guns spaced 120 degrees apart can be used. In actual use, when the laser beam irradiates the surface of the wire, the residual lubricating oil on the surface absorbs the laser energy, causing the temperature to rise, the grease to vaporize or decompose, and detach from the surface of the wire, achieving the purpose of cleaning the surface of the titanium wire 2. Specifically, the vacuum-argon-filled chamber adopts a method of first evacuating the vacuum and then filling with argon, which can ensure that the chamber contains high-purity argon and avoid oxidation of the titanium wire 2. During vacuuming, the wire inlet 9 and outlet 8 are sealed. They are opened after argon gas is filled to above atmospheric pressure for the titanium wire 2 to enter and exit. During vacuuming, a guide wire is placed inside the chamber. After vacuuming and filling, the end of the guide wire is pulled out from the wire inlet 9 and welded to the titanium wire 2 to be cleaned. The guide wire then pulls the titanium wire 2 out of the outlet 8. The laser cleaning system uses two or three laser cleaning gun heads 1, which can cover the entire surface of the titanium wire 2 during wire feeding. The titanium wire 2 should be kept straight and prevented from swaying to facilitate laser cleaning operations. Arranging this structure between the ultrasonic cleaner and its take-up device 13 allows for the removal of residual lubricating oil from the surface of the titanium wire 2 after ultrasonic cleaning.

[0022] Preferably, the laser cleaning gun head 1 in the above structure is two or three, and is arranged at uniform intervals around the circumference. Those skilled in the art will understand that, in order to ensure that the laser beam completely covers the surface of the titanium wire 2, this structure preferably has two or three laser cleaning gun heads 1, and maintains that the laser cleaning gun heads 1 are arranged at uniform intervals around the circumference.

[0023] Preferably, in the above structure, the vacuum argon-filled chamber 3 has a vacuuming interface 5 and a gas filling interface 6 spaced apart on its side wall. The vacuuming interface 5 is connected to the vacuuming system 11, and the gas filling interface 6 is connected to the gas filling system 10. Those skilled in the art will understand that, to facilitate the connection between the vacuum argon-filled chamber 3 and the vacuuming system 11 and the gas filling system 10, this structure further provides a vacuuming interface 5 and a gas filling interface 6 spaced apart on the side wall of the vacuum argon-filled chamber 3, while maintaining the connection between the vacuuming interface 5 and the vacuuming system 11, and the connection between the gas filling interface 6 and the gas filling system 10.

[0024] Preferably, in the above structure, the guide wheel 7 is located 10-200mm in front of and behind the laser cleaning gun head 1. Those skilled in the art will understand that, in order to ensure that the titanium wire 2 to be cleaned is directly opposite the nozzle of the laser cleaning gun head 1, this structure is achieved through the guide wheel 7. Specifically, the guide wheel 7 can be located 10-200mm in front of and behind the laser cleaning gun head 1, that is, the guide wheel 7 is set 10-200mm in front of the feed (i.e., on the right side) of the laser cleaning gun head 1, and the guide wheel 7 is set 10-200mm behind the feed (i.e., on the left side) of the laser cleaning gun head 1, to ensure that the running trajectory of the titanium wire 2 is directly opposite the nozzle of the laser cleaning gun head 1.

[0025] Preferably, ball valves for sealing are provided at the inlet 9 and outlet 8 of the above structure. Those skilled in the art will understand that, in order to ensure that the vacuum argon-filled chamber 3 is under argon protection, this structure preferably provides ball valves for sealing at the inlet 9 and outlet 8.

[0026] Preferably, the vacuum argon-filled chamber 3 described above is equipped with a wire feeding device 12 at its feed end. Those skilled in the art will understand that, in order to ensure the titanium wire 2 maintains a tension of over 10 MPa and is fully tensioned, this structure preferably includes a wire feeding device 12 at the feed end of the vacuum argon-filled chamber 3, maintaining the titanium wire 2 connected to the wire feeding device 12. Furthermore, the wire feeding device 12 can be replaced by an ultrasonic cleaner from the preceding process.

[0027] Preferably, the vacuum argon-filled chamber 3 described above is provided with a take-up device 13 at its discharge end. Those skilled in the art will understand that, in order to ensure the titanium wire 2 maintains a tension of over 10 MPa and is fully tensioned, this structure preferably provides a take-up device 13 at the discharge end of the vacuum argon-filled chamber 3 to maintain the connection between the titanium wire 2 and the take-up device 13.

[0028] Preferably, the vacuum argon-filled chamber 3 described in the above structure is a rectangular shell welded from steel plates or a cylinder welded from steel pipes and end caps. Those skilled in the art will understand that since the vacuum argon-filled chamber 3 only provides a cleaning area, this structure is merely a further preferred embodiment of the vacuum argon-filled chamber 3, which can be a rectangular shell welded from steel plates or a cylinder welded from steel pipes and end caps.

[0029] Example 1

[0030] The structures fabricated using this solution include:

[0031] (1) It consists of a vacuum argon-filled chamber 3, a vacuum system 11, a gas filling system 10, a laser cleaning system, a wire feeding device 12, and a wire taking device 13.

[0032] (2) The vacuum argon-filled chamber 3 is a sealable, vacuum-evacuated, and protective gas-filled box. This box is a rectangular shell welded from steel plates. The laser cleaning gun head 1 is mounted on the chamber wall; the wire guide wheel 7 is installed inside the chamber; ball valves are installed on the chamber wall to seal the wire inlet 9 and outlet 8. Valves are installed on the chamber wall as vacuum interface 5 and gas filling interface 6.

[0033] (3) The vacuum system 11 and the gas filling system 10 consist of a vacuum pump, valves, and a gas source. The vacuum pump is a mechanical pump with a limiting pressure of 1.5 Pa. The gas source is argon with a purity ≥ 99.999%.

[0034] (4) The laser cleaning system consists of a fiber laser, an optical fiber, and a laser cleaning gun head 1. The laser power is 500W, the maximum scanning width is 10mm, and the scanning direction is perpendicular to the wire axis. Two laser cleaning guns are used, spaced 180 degrees apart. A set of wire guide wheels 7 is installed 20mm in front of and behind the cleaning position on each side.

[0035] (5) The wire feeding device 12 and the wire take-up device 13 are equipped with tension devices to provide a tension of 20 MPa. The wire feeding device 12 and the wire take-up device 13 are replaced by an ultrasonic cleaner and its built-in wire take-up device 13.

[0036] This device enables offline removal of surface lubricating oil from titanium and titanium alloy wires with diameters ranging from φ1.0mm to 6.5mm. The device can achieve a maximum take-up speed of 30m / s for wires with a diameter of φ1.6mm. Using a take-up speed of 30m / s, residual lubricating oil was removed from the surface of a 1.6mm diameter titanium wire 2 after ultrasonic cleaning. Inspection showed that the lubricating oil was completely removed from the surface of the titanium wire 2, leaving a clean, residue-free, bright, and oxidation-free surface. Using a take-up speed of 10m / s, the lubricating oil was removed from the surface of a 6.5mm diameter titanium wire 2 after ultrasonic cleaning. The lubricating oil was completely removed from the surface of the titanium wire 2, leaving a clean, residue-free, bright, and oxidation-free surface.

[0037] Example 2

[0038] The structures fabricated using this solution include:

[0039] (6) It consists of a vacuum argon-filled chamber 3, a vacuum system 11, a gas filling system 10, a laser cleaning system, a wire feeding device 12, and a wire taking device 13.

[0040] (7) The vacuum argon-filled chamber 3 is a sealable, vacuum-evacuated, and protective gas-filled box. This box is a cylindrical body welded from steel pipes and end caps. The laser cleaning gun head 1 is mounted on the chamber wall; the guide wire wheel 7 is installed inside the chamber; ball valves are installed on the chamber wall as inlet and outlet seals. Valves are installed on the chamber wall as vacuum interface 5 and gas filling interface 6.

[0041] (8) The vacuum system 11 and the gas filling system 10 consist of a vacuum pump, valves, and a gas source. The vacuum pump is a mechanical pump with a limiting pressure of 1.5 Pa. The gas source is argon with a purity ≥ 99.999%.

[0042] (9) The laser cleaning system consists of a fiber laser, an optical fiber, and a laser cleaning gun head 1. The laser power is 300W, the maximum scanning width is 10mm, and the scanning direction is perpendicular to the wire axis. Three laser cleaning guns are used, spaced 180 degrees apart. A set of wire guide wheels 7 is installed 100mm in front of and behind the cleaning position.

[0043] (10) The wire feeding device 12 and the wire take-up device 13 are equipped with tension devices to provide a tension of 15 MPa. The wire feeding device 12 and the wire take-up device 13 are replaced by an ultrasonic cleaner and its built-in wire take-up device 13.

[0044] This device enables offline removal of surface lubricating oil from titanium and titanium alloy wires with diameters ranging from φ1.0mm to 6.5mm. The device can achieve a maximum take-up speed of 30m / s for wires with a diameter of φ1.6mm. Using a take-up speed of 30m / s, residual lubricating oil was removed from the surface of a 1.6mm diameter titanium wire 2 after ultrasonic cleaning. Inspection showed that the lubricating oil was completely removed from the surface of the titanium wire 2, leaving a clean, residue-free, bright, and oxidation-free surface. Using a take-up speed of 15m / s, the lubricating oil was removed from the surface of a 6.5mm diameter titanium wire 2 after ultrasonic cleaning. The lubricating oil was completely removed from the surface of the titanium wire 2, leaving a clean, residue-free, bright, and oxidation-free surface.

Claims

1. An apparatus for online removal of lubricating oil from titanium wires, characterized in that: The system includes a vacuum argon-filled chamber (3), a vacuum pumping system (11), a gas filling system (10), and a laser cleaning system. The vacuum argon-filled chamber (3) is a hollow structure with sealed ends, and has a wire inlet (9) and a wire outlet (8) at both ends. Several wire guide wheels (7) are provided on the side connecting the wire inlet (9) and the wire outlet (8). The laser cleaning system includes a laser cleaning gun head (1), which is located at the wire guide wheel (7) inside the vacuum argon-filled chamber (3), and the nozzle of the laser cleaning gun head (1) is directly opposite the line connecting the wire inlet (9) and the wire outlet (8). The vacuum pumping system (11) and the gas filling system (10) are respectively connected to the vacuum argon-filled chamber (3).

2. The apparatus for online removal of lubricating oil from titanium wires according to claim 1, characterized in that: The laser cleaning gun head (1) consists of two or three parts, and is arranged at uniform intervals around the circumference.

3. The apparatus for online removal of lubricating oil from titanium wires according to claim 1, characterized in that: The vacuum argon-filled chamber (3) has a vacuum port (5) and an inflation port (6) spaced apart on its side wall. The vacuum port (5) is connected to the vacuum system (11), and the inflation port (6) is connected to the inflation system (10).

4. The apparatus for online removal of lubricating oil from titanium wires according to claim 1, characterized in that: The guide wheel (7) is located 10 to 200 mm in front of and behind the laser cleaning gun head (1).

5. The apparatus for online removal of lubricating oil from titanium wires according to claim 1, characterized in that: Ball valves for sealing are provided at the inlet (9) and outlet (8).

6. The apparatus for online removal of lubricating oil from titanium wires according to claim 1, characterized in that: The vacuum argon-filled chamber (3) is equipped with a wire feeding device (12) at the feeding end.

7. The apparatus for online removal of lubricating oil from titanium wires according to claim 6, characterized in that: The vacuum argon-filled chamber (3) is equipped with a take-up device (13) at the discharge end.

8. The apparatus for online removal of lubricating oil from titanium wires according to claim 1, characterized in that: The vacuum argon-filled chamber (3) is a rectangular shell welded from steel plates or a cylinder welded from steel pipes and end caps.

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