Lubricating device in titanium wire drawing process

Abstract

The utility model discloses a lubricating device in a titanium wire drawing process, the lubricating device is a box body which is provided with a top opening and is filled with lubricating powder, and the box body is internally divided into a powder storage cavity, a collecting cavity and a through hole. A driving mechanism for driving the lubricating powder to make contact with the surfaces of the titanium wires all the time is arranged in the powder storage cavity, and plugging parts for plugging the titanium wires and the inner walls of the penetrating holes are arranged at the penetrating holes in the powder storage cavity. The driving mechanism can drive the lubricating powder higher than the surface of the titanium wire to have the acting force of continuously moving downwards, and the problem that the lubricating powder is caked, a penetrating cavity is easily formed in the lubricating powder, and consequently the titanium wire is not fully lubricated is solved. And on the basis of ensuring smooth penetration of the titanium wire, the problems that the capacity in the powder storage cavity is reduced and frequent addition is needed due to the fact that the lubricating powder flows into the collecting cavity from the penetrating hole are solved through the plugging part, and therefore the continuous lubricating effect of the titanium wire is further achieved on the basis that effective lubricating of the titanium wire is achieved.

Description

Technical Field

[0001] This application relates to the technical field of titanium wire drawing, and particularly to a lubricating device during the titanium wire drawing process. Background Art

[0002] Titanium wire is a thin wire material made of pure titanium or titanium alloy, and has many excellent properties, such as low density, high mechanical strength, high temperature resistance, corrosion resistance, etc., and is widely used in many industries such as aerospace, medical field, chemical industry field, etc. Since titanium has better biocompatibility compared with other metals, the titanium wire made is often used as a medical implant material, such as dental implants and orthopedic implants.

[0003] Currently, the production process of titanium wire generally includes obtaining titanium ingots from refined titanium blocks, forging and processing the titanium ingots through multiple deformations to form titanium rods, reducing the diameter of the titanium rods through multiple passes to form small-diameter titanium rods with a diameter less than 10 mm, and processing the small-diameter titanium rods into fine titanium wires with a diameter less than 1 mm through multiple wire drawing operations using a wire drawing die. Titanium wire drawing mainly uses the wire drawing die as shown in the attached drawings of the specification. Figure 1 As shown, the inner diameter of the wire drawing die is smaller than the outer diameter of the current titanium wire. Under the traction of the traction wheel as shown, the titanium wire passes through the wire drawing die to achieve a single wire drawing operation with diameter reduction. Through different wire drawing dies, titanium wire products with a diameter less than 1 mm can be processed. Figure 3 Since during the wire drawing process, the inner diameter of the wire drawing die is smaller than the outer diameter of the current titanium wire, there is a hard extrusion for diameter reduction during wire drawing, and the titanium wire is subject to a large extrusion external force. At the same time, it also needs to continuously move forward under traction. Therefore, to avoid the problem of the titanium wire breaking under the action of this large external force, it is usually necessary to lubricate its surface before wire drawing to reduce the large friction force during wire drawing and prevent breakage.

[0004] As shown, the currently used lubricating device is a box body with an open top and filled with lubricating powder inside. The box body is partitioned into a powder storage cavity and collection cavities provided on both sides, and a perforation for passing the titanium wire is horizontally penetrated through the top of the box body. Among them, the filling amount (height) of the lubricating powder in the powder storage cavity is greater than the perforation. Its function is: when the titanium wire passes through the perforations of the collection cavity and the powder storage cavity, the lubricating powder in the powder storage cavity completely covers the surface of the titanium wire, as shown, so as to achieve adhesion and complete lubrication of the surface of the titanium wire. And because the filling amount of the lubricating powder is higher than the height of the titanium wire passing through, the lubricating powder will flow into the collection cavity through the gap between the perforation of the powder storage cavity and the titanium wire and be collected, avoiding waste of the lubricating powder. As the lubricating powder in the powder storage cavity gradually flows into the collection cavity through the perforation, the height of the lubricating powder in the powder storage cavity will be lower than the titanium wire, and thus effective lubrication of the titanium wire cannot be achieved, and it is necessary to frequently add lubricating powder to make it higher than the surface of the titanium wire.

[0005] As Figure 4 shown, the currently used lubricating device is a box body with an open top and filled with lubricating powder inside. The box body is partitioned into a powder storage cavity and collection cavities provided on both sides, and a perforation for passing the titanium wire is horizontally penetrated through the top of the box body. Among them, the filling amount (height) of the lubricating powder in the powder storage cavity is greater than the perforation. Its function is: when the titanium wire passes through the perforations of the collection cavity and the powder storage cavity, the lubricating powder in the powder storage cavity completely covers the surface of the titanium wire, as shown, so as to achieve adhesion and complete lubrication of the surface of the titanium wire. And because the filling amount of the lubricating powder is higher than the height of the titanium wire passing through, the lubricating powder will flow into the collection cavity through the gap between the perforation of the powder storage cavity and the titanium wire and be collected, avoiding waste of the lubricating powder. As the lubricating powder in the powder storage cavity gradually flows into the collection cavity through the perforation, the height of the lubricating powder in the powder storage cavity will be lower than the titanium wire, and thus effective lubrication of the titanium wire cannot be achieved, and it is necessary to frequently add lubricating powder to make it higher than the surface of the titanium wire. Figure 4 As the lubricating powder in the powder storage cavity gradually flows into the collection cavity through the perforation, the height of the lubricating powder in the powder storage cavity will be lower than the titanium wire, and thus effective lubrication of the titanium wire cannot be achieved, and it is necessary to frequently add lubricating powder to make it higher than the surface of the titanium wire.

[0006] During the above lubrication process, due to the problem of caking of the lubricating powder in the normal temperature environment and the shaking during the threading process of the titanium wire, a threading cavity as shown in Figures 5 - 6 will be formed. The inner diameter of this cavity is larger than the outer diameter of the titanium wire. Therefore, the titanium wire cannot effectively contact the lubricating powder during the threading process, that is, the effective lubrication effect cannot be achieved, resulting in the problem of titanium wire breakage due to increased extrusion friction with the wire drawing die during subsequent wire drawing operations. Summary of the Invention

[0007] In view of the above problems, the present application aims to provide a lubrication device during the titanium wire drawing process, which can drive the lubricating powder above the surface of the titanium wire to have a continuous downward acting force, solve the problem of caking of the lubricating powder and easily forming a threading cavity inside it, resulting in insufficient lubrication of the titanium wire. At the same time, it blocks the problem that the lubricating powder flows into the collection cavity from the perforation, resulting in a reduction in the capacity of the powder storage cavity and the need for frequent addition. Thus, on the basis of realizing effective lubrication of the titanium wire, the continuous lubrication effect of the titanium wire is further realized.

[0008] To achieve the above object, the technical solution adopted by the present application is as follows: A lubrication device during the titanium wire drawing process, the lubrication device is a box body with an open top and filled with lubricating powder inside. The box body is divided into a powder storage cavity and collection cavities provided on both sides, and a perforation for threading the titanium wire is horizontally penetrated through the top of the box body. Its characteristics are: A driving mechanism for driving the lubricating powder to always contact the surface of the titanium wire is provided in the powder storage cavity, and a sealing component for sealing the titanium wire and the inner wall of the perforation is provided at each perforation on the powder storage cavity.

[0009] Preferably, the driving mechanism is a lower pressing plate whose sides are all slidably attached to the inner wall of the powder storage cavity, and a powder dispersion structure for driving the lubricating powder is further provided on the bottom surface of the lower pressing plate.

[0010] Preferably, the dispersion structure is dispersion teeth evenly distributed on both sides of the titanium wire on the bottom surface of the lower pressing plate.

[0011] Preferably, the sealing component is a flexible sealing ring that is provided at each perforation of the powder storage cavity and is attached to the surface of the titanium wire.

[0012] The beneficial effect of the present application is: The lubrication device is provided with a driving mechanism in the powder storage cavity of the box body to drive the lubricating powder to always contact the surface of the titanium wire. It can drive the lubricating powder above the surface of the titanium wire to have a continuous downward acting force, solve the problem of caking of the lubricating powder and easily forming a threading cavity inside it, resulting in insufficient lubrication of the titanium wire.

[0013] At the perforations on the powder storage cavity, there are blocking components that block the titanium wire and the inner wall of the perforations. On the basis of ensuring the smooth threading of the titanium wire, they prevent the lubricating powder from flowing through the perforations into the collection cavity, which would lead to a reduction in the capacity of the powder storage cavity and the need for frequent replenishment. Thus, on the basis of effectively lubricating the titanium wire, the continuous lubrication of the titanium wire is further achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the current titanium wire passing through the wire drawing die to achieve wire diameter reduction wire drawing.

[0015] Figure 2 For Figure 1 It is a schematic diagram that the unlubricated titanium wire in [reference] is easily broken due to the large extrusion and friction external force.

[0016] Figure 3 It is a schematic diagram of the overall structure of the current titanium wire lubrication and wire drawing.

[0017] Figure 4 For Figure 3 It is an enlarged schematic diagram of the structure at position A in [reference].

[0018] Figure 5 For Figure 4 It is a schematic diagram that the threading cavity formed after the lubricating powder caking in [reference] is larger than the outer diameter of the titanium wire.

[0019] Figure 6 For Figure 5 Side view.

[0020] Figure 7 It is a schematic diagram of the structure and function of the lower pressing plate set in this application.

[0021] Figure 8 It is a schematic diagram that the downward pressing is insufficient in this application due to the hard caking of the lubricating powder.

[0022] Figure 9 It is a schematic diagram of the structure of the dispersion teeth set on the bottom surface of the lower pressing plate in this application.

[0023] Figure 10 It is a schematic diagram that the lubricating powder in the powder storage cavity of this application flows into the collection cavity.

[0024] Figure 11 It is a schematic diagram of the structure of the flexible sealing ring that restricts the outflow of the lubricating powder at the perforation in this application.

[0025] In the figure: 4 - wire drawing die; 5 - traction wheel; 6 - titanium wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to enable those of ordinary skill in the art to better understand the technical solutions of this application, the technical solutions of this application will be further described below with reference to the accompanying drawings and embodiments.

[0027] Refer to the attachedFigures 1 - 11 A lubricating device during the titanium wire drawing process as shown, such as Figure 4 shown. The lubricating device is a box body 1 with an open top and filled with lubricating powder inside. The box body 1 is divided into a powder storage cavity 1a and collection cavities 1b provided on both sides, and a perforation 1c for passing the titanium wire is horizontally penetrated through the top of the box body 1. In order to solve the problems in the current titanium wire lubrication process, such as the need to frequently add lubricating powder due to the reduction of the outflow of lubricating powder, and the formation of a perforated cavity inside the lubricating powder, resulting in the titanium wire not being able to effectively contact the lubricating powder and having an effective lubricating effect, leading to the breakage of the titanium wire due to the increased extrusion friction with the wire drawing die during subsequent wire drawing operations, as Figure 7 shown, in this application, a driving mechanism is provided in the powder storage cavity 1a to always keep the lubricating powder in contact with the surface of the titanium wire. This driving mechanism drives the lubricating powder above the surface of the titanium wire to have a continuous downward movement force, solving the problem that the lubricating powder caking is likely to form a perforated cavity inside, resulting in insufficient lubrication of the titanium wire.

[0028] And at the perforation 1c on the powder storage cavity 1a, a blocking component is provided to block the titanium wire and the inner wall of the perforation 1c. On the basis of ensuring the smooth passing of the titanium wire, it prevents the lubricating powder from flowing from the perforation 1c into the collection cavity 1b, resulting in a reduction in the capacity of the powder storage cavity 1a and the need for frequent addition. Thus, on the basis of realizing the effective lubrication of the titanium wire, the continuous lubrication effect of the titanium wire is further realized.

[0029] Specifically, as Figure 7 shown, the driving mechanism is a lower pressing plate 2 whose sides are all slidably attached to the inner wall of the powder storage cavity 1a. It is preferably made of metal and has a certain body weight. When a perforated cavity is formed inside the lubricating powder, the gravity of the lower pressing plate 2 drives the lubricating powder to move downward, thereby eliminating the formed perforated cavity, so that the titanium wire is always completely covered by the lubricating powder, ensuring an effective lubricating effect.

[0030] When the lubricating powder is greatly affected by the humid environment and causes hard caking, it will further lead to the problem shown in Figure 8 that the left side does not move downward, while the right side moves downward below the surface of the titanium wire, and thus there is still a problem of insufficient lubrication of the titanium wire. Therefore, to solve this problem, a dispersing structure for driving the lubricating powder is further provided on the bottom surface of the lower pressing plate 2, which can actively disperse a part of the hard-caked lubricating powder to solve the problems of non-dispersibility of the caked lubricating powder and insufficient lubrication of the titanium wire.

[0031] Specifically, as Figure 9As shown, the dispersion structure is the dispersion teeth 21 evenly arranged on the bottom surface of the lower pressing plate 2 and on both sides of the titanium wire. Under the weight of the main body of the lower pressing plate 2, it actively drives the relatively hard agglomerated lubricating powder to disperse. After dispersion, it can drive the top surface of the lubricating powder to move downward synchronously to contact the titanium wire, thereby avoiding the agglomeration of the lubricating powder and ensuring the lubrication effect of the titanium wire. The dispersion teeth 21 are evenly distributed on both sides of the titanium wire, thus avoiding the problem of scratching the surface of the titanium wire when the lower pressing plate 2 presses down.

[0032] To solve the problem of the gradual reduction in the outflow of the lubricating powder from the perforation 1c, as Figure 11 shown, the plugging component is a flexible plugging ring 3 that is arranged at the perforation 1c of the powder storage cavity 1a and is attached to the surface of the titanium wire. It is preferably made of rubber. On the basis of ensuring the smooth passing of the titanium wire, it realizes the attachment to the surface of the titanium wire, thereby blocking the gap between the perforation 1c and the surface of the titanium wire, effectively avoiding the outflow of the lubricating powder in the powder storage cavity 1a, ensuring that the lubricating powder in the powder storage cavity 1a is always higher than the titanium wire and can completely cover the titanium wire to achieve the lubrication effect.

[0033] The principle of this application is: The lubricating device has a lower pressing plate 2 that is slidably attached to the inner wall of the powder storage cavity 1a of the box body 1. It is preferably made of metal and has a certain weight of its main body. When a through-hole cavity is formed in the lubricating powder, the gravity of the main body of the lower pressing plate 2 drives the lubricating powder to move downward, thereby eliminating the formed through-hole cavity, ensuring that the titanium wire is always completely covered by the lubricating powder, and ensuring an effective lubrication effect.

[0034] At the same time, through the dispersion teeth 21, the relatively hard agglomerated lubricating powder can be dispersed. After dispersion, it can drive the top surface of the lubricating powder to move downward synchronously to contact the titanium wire, thereby avoiding the agglomeration of the lubricating powder and ensuring the lubrication effect of the titanium wire.

[0035] By setting the flexible plugging ring 3, the outflow of the lubricating powder in the powder storage cavity 1a can be effectively avoided, ensuring that the lubricating powder in the powder storage cavity 1a is always higher than the titanium wire and can completely cover the titanium wire to achieve the lubrication effect.

[0036] The above shows and describes the basic principle, main features and advantages of this application. Without departing from the spirit and scope of this application, this application will have various changes and improvements, and these changes and improvements all fall within the scope of this application claimed.

Claims

1. A lubricating device for titanium wire drawing, the lubricating device is a box body (1) with an open top and filled with lubricating powder, the box body (1) is divided into a powder storage chamber (1a) and a collection chamber (1b) arranged on both sides, and a through hole (1c) for passing the titanium wire is opened transversely through the top of the box body (1), characterized in that: A driving mechanism is provided in the powder storage chamber (1a) for driving the lubricating powder to always be in contact with the surface of the titanium wire, and a sealing component is provided at each of the through holes (1c) on the powder storage chamber (1a) for sealing the titanium wire from the inner wall of the through hole (1c).

2. The lubrication device according to claim 1, characterized in that: The driving mechanism is a lower pressing plate (2) whose sides are slidably attached to the inner wall of the powder storage chamber (1a), and a dispersion structure for driving the lubricating powder is also arranged on the bottom surface of the lower pressing plate (2).

3. The lubrication device according to claim 2, characterized in that: The dispersion structure is dispersion teeth (21) evenly arranged on the bottom surface of the lower pressing plate (2) and on both sides of the titanium wire.

4. The lubrication device according to claim 3, characterized in that: The blocking component is a flexible blocking ring (3) which is in contact with the surface of the titanium wire and is arranged at the through hole (1c) of the powder storage chamber (1a).

Images