Surface lubricating device for aluminum alloy welding wire production

Abstract

The invention discloses a surface lubricating device for aluminum alloy welding wire production, and relates to the technical field of welding wire production, the surface lubricating device comprises a mold box, a sizing mold used for scraping an oil film on the surface of a welding wire is arranged at an outlet of the mold box, the surface lubricating device further comprises two guide wheels and a lubricating piece, and the two guide wheels are used for guiding the welding wire to vertically enter the sizing mold; the lubricating piece is located between the two guide wheels and rotationally connected into the mold box, the lubricating piece comprises at least two arc-shaped lubricating parts used for lubricating welding wires, and the multiple arc-shaped lubricating parts are the same in circle center and different in radius. According to the surface lubricating device for aluminum alloy welding wire production, the two guide wheels are arranged to guide the welding wire to vertically enter the sizing die, meanwhile, the lubricating piece is arranged, when the length of the welding wire between the two guide wheels changes, the arc-shaped lubricating parts with different radiuses on the lubricating piece abut against the welding wire, and therefore the welding wire is lubricated. Therefore, the welding wire is lubricated while the welding wire is kept tensioned, and the situation that the area reduction rates of the two sides of the welding wire are different is avoided as much as possible.

Description

Technical Field

[0001] The invention relates to the technical field of welding wire production, and in particular to a surface lubrication device for aluminum alloy welding wire production. Background Art

[0002] When aluminum alloy welding wire is used, traction is applied to the welding wire through a shaft-mounted or barrel-mounted welding wire feeding device, and then it is supplied to the welding gun through the wire tube. In the case of large-area welding, the distance can reach about 20 meters. This will increase the friction of the welding wire in the wire tube and affect the stability of wire feeding. Therefore, in order to reduce the resistance of the welding wire in the wire tube, it is necessary to apply lubricating oil to the surface of the welding wire during production.

[0003] For example, the patent document with the authorization announcement number CN204413366U and the authorization announcement date June 24, 2015, and the name of which is "A device for controlling oil film on the surface of welding wire", includes a welding wire sizing and polishing mold box, a lubricating oil storage cavity is provided at the outlet of the mold box, and a welding wire sizing and polishing mold is installed at the outlet of the mold box. The welding wire sizing and polishing mold consists of a surface reduction area, a sizing area, and a leaving area. The advantage is that it can increase the thickness of the oil film attached to the surface of the welding wire, thereby improving the wire feeding performance.

[0004] When the welding wire is sizing and polished, the uneven parts, burrs and oil film on its surface will be scraped off to varying degrees. In this process, the parameters of the welding wire and the oil film are generally controlled by the surface reduction rate. For welding wire with a low surface reduction rate, more uneven parts remain on the surface and it is rough, so there is more oil remaining on the surface of the welding wire. For welding wire with a high surface reduction rate, its surface is smoother, so there is less oil remaining on the surface of the welding wire.

[0005] When controlling the oil film, the aluminum alloy welding wire needs to enter the sizing and polishing mold vertically. If the welding wire becomes loose or deviates, the surface reduction rate on the side where the welding wire deviates will increase, which will cause different surface reduction rates on both sides of the welding wire and affect the subsequent use of the welding wire. Summary of the invention

[0006] The purpose of the present invention is to provide a surface lubrication device for aluminum alloy welding wire production to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A surface lubrication device for aluminum alloy welding wire production, comprising a die box, wherein the die box outlet is provided with a sizing die for scraping off the oil film on the surface of the welding wire, and further comprising:

[0009] Guide wheels, two of which are provided to guide the welding wire vertically into the sizing die;

[0010] A lubricating component is located between the two guide wheels and is rotatably connected in the mold box. The lubricating component includes at least two arc-shaped lubricating parts for lubricating the welding wire. The arc-shaped lubricating parts have the same center and different radii.

[0011] In the above-mentioned surface lubrication device for aluminum alloy welding wire production, a plurality of arc-shaped lubrication parts are smoothly connected to form a spiral structure.

[0012] In the above-mentioned surface lubrication device for aluminum alloy welding wire production, the lubricating part includes a connecting rod rotatably connected to the mold box, a support rod is fixed on the connecting rod, and the end of the support rod is fixed to the arc-shaped lubrication part.

[0013] In the above-mentioned surface lubrication device for aluminum alloy welding wire production, a slide plate is slidably connected inside the mold box, and the connecting rod is rotatably connected to the slide plate.

[0014] In the above-mentioned surface lubrication device for aluminum alloy welding wire production, a transmission bar is fixed in the mold box, and a transmission wheel connected to the transmission bar is fixed on the connecting rod.

[0015] The above-mentioned surface lubrication device for aluminum alloy welding wire production also includes an elastic member arranged in the mold box and used to force the slide plate away from the guide wheel.

[0016] In the above-mentioned surface lubrication device for aluminum alloy welding wire production, the lubricating component also includes a linkage portion slidably connected to the slide plate, and the linkage portion and the arc-shaped lubrication portion are respectively located on opposite sides of the welding wire.

[0017] In the above-mentioned surface lubrication device for aluminum alloy welding wire production, a plurality of arc-shaped lubrication parts are all configured with limiting grooves on the same side, the plurality of limiting grooves are smoothly connected, and a limiting block adapted to the limiting groove is configured on the linkage part.

[0018] In the above-mentioned surface lubrication device for aluminum alloy welding wire production, a plurality of limiting blocks are provided.

[0019] In the above-mentioned surface lubrication device for aluminum alloy welding wire production, grooves are constructed on the side where the plurality of arc-shaped lubrication parts and the linkage parts are close to each other, and a plurality of lubrication holes are evenly distributed in the grooves.

[0020] In the above technical scheme, the present invention provides a surface lubrication device for aluminum alloy welding wire production, which is provided with two guide wheels to guide the welding wire to vertically enter the sizing die, and a lubricating part is provided at the same time. When the length of the welding wire changes between the two guide wheels, the welding wire is resisted by the arc-shaped lubricating parts with different radii on the lubricating part, thereby lubricating the welding wire while keeping the welding wire tensioned, and avoiding the situation where the surface reduction rate on both sides of the welding wire is different. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the internal structure of a mold box provided in an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the internal structure of a mold box provided by yet another embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure of a lubricating component provided by yet another embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of an elastic member provided in yet another embodiment of the present invention;

[0027] Figure 6 A schematic diagram of a limiting groove structure provided by another embodiment of the present invention;

[0028] Figure 7 A schematic diagram of a groove structure provided in yet another embodiment of the present invention;

[0029] Figure 8 A cross-sectional view of an arc-shaped lubrication portion and a linkage portion provided in yet another embodiment of the present invention.

[0030] Description of reference numerals:

[0031] 1. Mold box; 2. Sizing mold; 3. Guide wheel; 4. Arc-shaped lubrication part; 5. Connecting rod; 6. Support rod; 7. Slide plate; 8. Transmission bar; 9. Transmission wheel; 10. Elastic member; 11. Linkage part; 12. Slide bar; 13. Limiting groove; 14. Limiting block; 15. Groove; 16. Lubrication hole; 17. Oil pipe; 18. Resistance block; 19. Oil delivery channel; 20. Connecting cavity. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] Reference Figure 1-8An embodiment of the present invention provides a surface lubrication device for aluminum alloy welding wire production, comprising a mold box 1, wherein the mold box 1 outlet is provided with a sizing mold 2 for scraping off the oil film on the surface of the welding wire, and further comprises a guide wheel 3 and a lubricating member, wherein two guide wheels 3 are provided to guide the welding wire to vertically enter the sizing mold 2; the lubricating member is located between the two guide wheels 3 and is rotatably connected in the mold box 1, and the lubricating member comprises at least two arc-shaped lubricating portions 4 for lubricating the welding wire, and the multiple arc-shaped lubricating portions 4 have the same center and different radii.

[0034] Specifically, during the production of welding wire, lubricating oil needs to be applied to the surface of the welding wire. In the prior art, the welding wire is generally sizing and polished after lubrication to avoid excessive lubricating oil adhering to the surface of the welding wire as much as possible, and at the same time, the burrs and uneven structures on the surface of the welding wire can be scraped off. After this process, the resistance of the welding wire in subsequent transportation (such as in the process of supplying it to the welding gun through the wire tube) can be greatly reduced; the mold box 1 is overall constructed as a box body, and an inlet and an outlet are respectively constructed on both sides for the welding wire to pass through, and the sizing mold 2 is arranged at the outlet position of the mold box 1, so that the oil film and burrs on the surface of the welding wire are scraped off by the sizing mold 2 (the oil film is not completely scraped off, and a set thickness of oil film will remain on the surface of the welding wire), so that the welding wire reaches a specified diameter and leaves a certain thickness of oil film, thereby improving the wire feeding performance. The above are all prior arts and will not be repeated. The innovation of the embodiment of the present invention is that two guide wheels 3 are provided to guide the welding wire, and the contact point between the guide wheel 3 close to the sizing die 2 and the welding wire is on the axis of the sizing die 2, so as to guide the welding wire to vertically enter the sizing die 2; at the same time, a lubricating part is provided between the two guide wheels 3, and a motor structure can be provided in the mold box 1 to drive the lubricating part to rotate, and the lubricating part includes at least two arc-shaped lubricating parts 4, and the arc-shaped lubricating part 4 can select a sponge block or the like structure in the prior art to resist and guide the welding wire through the sponge block, and the lubricating oil can be applied to the outer wall of the welding wire through the arc-shaped lubricating part 4 (after the lubricating oil is absorbed in the sponge block, the lubricating oil can be applied to the surface of the welding wire through the contact between the welding wire and the sponge block), and the multiple arc-shaped lubricating parts 4 have the same center of circle (the center of circle is the rotation connection point between the lubricating part and the mold box 1) and different radii, and the arc-shaped lubricating parts 4 have the same center of circle (the center of circle is the rotation connection point between the lubricating part and the mold box 1) and different radii. After the welding wire enters the die box 1, the two guide wheels 3 and the lubricating parts can guide the welding wire to move out of the die box 1 from the sizing die 2. Since the contact point between the guide wheel 3 close to the sizing die 2 and the welding wire is on the axis of the sizing die 2, the welding wire can vertically enter the sizing die 2 after passing through the guide wheel 3 close to the sizing die 2 to scrape off the oil film, burrs and other structures. During the transportation of the welding wire, a tensioning structure is generally provided to tension the welding wire to avoid the welding wire being too loose or too tight during the transportation. However, the welding wire in the prior art generally undergoes multiple drawing processes during production, and its conveying line is relatively long, and it is impossible to ensure that the welding wire at each position is in a tensioned state. In the embodiment of the present invention, if the welding wire in the die box 1 becomes loose, the welding wire will deviate between the two guide wheels 3, such as Figure 2As shown in the figure, when the welding wire deflects upward, the friction between the upper surface of the welding wire and the sizing die 2 increases, and the friction between the lower surface and the sizing die 2 decreases, which will make the surface reduction rate of the upper surface of the welding wire higher and the surface reduction rate of the lower surface lower, thereby causing the welding wire to have different surface reduction rates on both sides, thereby affecting the lubrication effect of the welding wire (that is, affecting the oil content on the surface of the welding wire); for this purpose, a lubricating part is rotatably connected in the mold box 1, and the lubricating part rotates based on the change of the welding wire length between the two guide wheels 3, so that the arc-shaped lubricating parts 4 with different radii can be used to lubricate the welding wire. The welding wire contacts with each other, thereby adapting to the change of welding wire length between the two guide wheels 3; when the welding wire between the two guide wheels 3 becomes longer, the lubricating component rotates to switch the arc-shaped lubricating portion 4 with a larger radius to contact and guide the welding wire, so that the welding wire can be lubricated while being tensioned; conversely, when the welding wire between the two guide wheels 3 becomes shorter, the lubricating component switches the arc-shaped lubricating portion 4 with a smaller radius to contact the welding wire, so as to lubricate the welding wire while adapting to the change of welding wire length between the two guide wheels 3, and try to avoid the welding wire from loosening.

[0035] A surface lubrication device for aluminum alloy welding wire production provided in an embodiment of the present invention comprises two guide wheels 3 to guide the welding wire to vertically enter a sizing die 2, and a lubricating part is provided. When the length of the welding wire changes between the two guide wheels 3, the welding wire is resisted by arc-shaped lubricating portions 4 with different radii on the lubricating part, thereby lubricating the welding wire while keeping the welding wire taut, thereby avoiding the situation where different surface reduction rates appear on both sides of the welding wire.

[0036] In another embodiment provided by the present invention, further, a plurality of arcuate lubricating parts 4 are smoothly connected to form a spiral structure. Specifically, a plurality of arcuate lubricating parts 4 are arranged in the same plane, and a plurality of arcuate lubricating parts 4 are smoothly connected to form a spiral structure, that is, the spiral structure includes a plurality of arcuate lubricating parts 4 with the same center and different radii, so that when the lubricating part rotates in the mold box 1, different arcuate lubricating parts 4 can be smoothly switched to resist the welding wire, thereby improving the smoothness of the device during operation.

[0037] Furthermore, the lubricating member includes a connecting rod 5 rotatably connected to the mold box 1, a support rod 6 is fixed on the connecting rod 5, and the end of the support rod 6 is fixed to the arc-shaped lubricating portion 4. Specifically, a plurality of support rods 6 are provided, one end of the plurality of support rods 6 is fixed to the connecting rod 5, and the other end is fixed to the inner wall of the plurality of arc-shaped lubricating portions 4, so that the spiral structure formed by the plurality of arc-shaped lubricating portions 4 can be fixed to the leveling rod through the plurality of support rods 6, and then the motor structure drives the connecting rod 5 to rotate, so as to drive the plurality of arc-shaped lubricating portions 4 to rotate, thereby switching the arc-shaped lubricating portions 4 with different radii to tension and lubricate the welding wire.

[0038] Furthermore, a slide plate 7 is slidably connected in the mold box 1, and the connecting rod 5 is rotatably connected to the slide plate 7. Specifically, a slide groove is constructed in the mold box 1, and the slide groove is located in the middle of the two guide wheels 3, and the slide plate 7 is slidably connected in the slide groove; in this embodiment, the motor structure is arranged on the slide plate 7 to drive the connecting rod 5 to rotate on the slide plate 7, and the slide plate 7 is slidably connected in the mold box 1, so as to drive the lubricating part to approach or move away from the two guide wheels 3 through the slide plate 7, and the driving force for the slide plate 7 to slide along the slide groove can select a linear driving structure such as a hydraulic rod in the prior art; in this embodiment, the connecting rod 5 is rotatably connected to the mold box 1 through the slide plate 7, that is, the connecting rod 5 can rotate on the slide plate 7, and the slide plate 7 can slide in the mold box 1. The purpose of such a setting is that, in the above embodiment, the welding wire is tensioned only by relying on the rotation of the connecting rod 5, and the tensioning range of this method is limited. For this reason, the connecting rod 5 is set on the slide plate 7, so that the connecting rod 5 can slide along the main body through the slide plate 7 while rotating, that is, when the welding wire between the two guide wheels 3 becomes longer, the arc-shaped lubrication part 4 with a larger radius can be switched to resist the welding wire while controlling the slide plate 7 to move away from the guide wheel 3. Conversely, when the welding wire between the two guide wheels 3 becomes shorter, the arc-shaped lubrication part 4 with a smaller radius can be switched to resist the welding wire while controlling the slide plate 7 to move close to the guide wheel 3, thereby increasing the range of the device for tensioning the welding wire and trying to keep the welding wire vertical when entering the sizing mold 2.

[0039] As an alternative to the above-mentioned motor structure driving the connecting rod 5 to rotate, preferably, a transmission bar 8 is fixed in the mold box 1, and a transmission wheel 9 connected to the transmission bar 8 is fixed on the connecting rod 5. The transmission bar 8 is fixed to the inner wall of the slide and arranged along the length direction of the slide, and the transmission wheel 9 is fixed to the outer wall of the connecting rod 5 and is in the slide. In the process of the slide 7 moving along the slide, the transmission wheel 9 maintains a transmission connection with the transmission bar 8. The transmission method between the transmission bar 8 and the transmission wheel 9 can be selected from the friction transmission or mechanical transmission in the prior art, which will not be repeated here; in the process of the slide 7 sliding along the slide, the connecting rod 5 and the transmission wheel 9 move synchronously, and the transmission wheel 9 is connected to the transmission bar 8, which will cause the transmission wheel 9 to rotate while moving along the slide, thereby driving the lubricating part to rotate. The purpose of such a configuration is that, by setting the transmission bar 8 and the transmission wheel 9 structure, the slide plate 7 can drive the rotating part to passively rotate on the slide plate 7 while sliding along the slide groove. In this way, when the slide plate 7 moves away from the guide wheel 3 along the slide groove, the rotating part can be driven to passively rotate and switch to an arc guide part with a larger radius to guide the welding wire. When the slide plate 7 approaches the guide wheel 3, the rotating part can be driven to switch to an arc guide part with a smaller radius to guide the welding wire, thereby making the slide plate 7 and the lubricating part operate adaptively.

[0040] As an alternative solution for the linear drive structure to drive the slide plate 7 to slide along the slide groove, it is preferred that an elastic member 10 is provided in the mold box 1 and used to force the slide plate 7 to move away from the guide wheel 3. Specifically, the elastic member 10 uses a spring structure in the prior art, one end of which is fixed on the outer wall of the mold box 1 and the other end is fixed on the slide plate 7. The elastic member 10 is in a stretched state to force the slide plate 7 to move away from the guide wheel 3. The effect of such a setting is that when the welding wire between the two guide wheels 3 becomes longer, the elastic force of the elastic member 10 can force the slide plate 7 to move away from the guide wheel 3 along the slide groove, and at the same time drive the lubricating member to switch to the arc guide part with a larger radius to resist the welding wire, so that the welding wire can be tensioned by the elastic force of the elastic member 10; on the contrary, when the welding wire between the two guide wheels 3 becomes shorter, the tension of the welding wire between the two guide wheels 3 can force the lubricating member and the slide plate 7 to overcome the elastic force of the elastic member 10 and move closer to the guide wheel 3 along the slide groove, thereby driving the lubricating member to passively rotate to adapt to the tension of the welding wire. The advantage of such a configuration is that the elastic force of the elastic member 10 can save the driving force of the slide plate 7 to drive the lubricating member to operate, so that the slide plate 7 and the lubricating member can passively operate based on the change in the length of the welding wire between the two guide wheels 3, thereby continuously tensioning the welding wire in the mold box 1.

[0041] In order to fully lubricate the welding wire, further, the lubricating part also includes a linkage part 11 slidably connected to the slide plate 7, and the linkage part 11 and the arc-shaped lubrication part 4 are respectively located on opposite sides of the welding wire. Specifically, the linkage part 11 can use a sponge block or other structure in the prior art, and it and the arc-shaped lubrication part 4 are respectively located on both sides of the welding wire, and the arc-shaped lubrication part 4 and the linkage part 11 are in conflict with each other to surround and fully lubricate the welding wire; the linkage part 11 is constructed as an arc-shaped structure adapted to the arc-shaped lubrication part 4, and the linkage part 11 is located between the two guide wheels 3 and on the side of the welding wire away from the guide wheels 3; a sliding rod 12 is fixed to the linkage part 11, and the sliding rod 12 is constructed as a non-rotating body, and a telescopic groove adapted to the sliding rod 12 is constructed on the slide plate 7, and the sliding rod 12 is slidably connected in the telescopic groove, and the sliding rod 12 and the telescopic groove are both extended along the length of the sliding groove. Setting: The driving force for the slide bar 12 to slide along the telescopic groove can select the structure of the electric telescopic rod in the prior art. When the lubricating part rotates to switch the arc-shaped lubricating part 4 with a smaller radius to tension the welding wire, the slide bar 12 is retracted into the telescopic groove, so that the linkage part 11 is close to the connecting rod 5 and adapts to the arc-shaped lubricating part 4 with a smaller radius to resist, thereby surrounding and fully lubricating the welding wire. When the lubricating part rotates to switch the arc-shaped lubricating part 4 with a larger radius to tension the welding wire, the slide bar 12 extends from the telescopic groove, so that the linkage part 11 is away from the connecting rod 5 and adapts to the arc-shaped lubricating part 4 with a larger radius to resist. The advantage of such a configuration is that when the arc-shaped lubricating portion 4 contacts and lubricates the welding wire, the contact position between the welding wire and the arc-shaped lubricating portion 4 is also between the two guide wheels 3. For this purpose, the linkage portion 11 is arranged between the two guide wheels 3, so that the linkage portion 11 can shrink along the telescopic groove and adapt to the arc-shaped lubricating portions 4 of different radii, so that the linkage portion 11 can contact the arc-shaped lubricating portions 4 of different radii to surround and lubricate the welding wire, thereby fully lubricating the welding wire.

[0042] It should be noted that in this embodiment, if the arc-shaped lubrication portion 4 adopts a sponge structure, the arc-shaped lubrication portion 4 is divided into a rigid part and a sponge part. The rigid part is fixed to the support rod 6, and the sponge part is in contact with the linkage portion 11 to surround and lubricate the welding wire. Correspondingly, the linkage portion 11 can also be set accordingly.

[0043] In another embodiment provided by the present invention, as an alternative solution for the electric telescopic rod to drive the slide bar 12 to slide along the telescopic groove, preferably, a plurality of the arc-shaped lubricating parts 4 are all configured with a limiting groove 13 on the same side, and the plurality of the limiting grooves 13 are smoothly connected, and a limiting block 14 adapted to the limiting groove 13 is configured on the linkage part 11. Specifically, the limiting groove 13 is configured on the side of the arc-shaped lubricating part 4 away from the slide plate 7, and the limiting grooves 13 on the plurality of arc-shaped lubricating parts 4 are smoothly connected, so that the limiting groove 13 is configured as a spiral as a whole, that is, the distance between the limiting groove 13 and the central axis of the connecting rod 5 gradually increases or decreases; the limiting block 14 is configured on the side of the linkage part 11 away from the slide plate 7, and the limiting block 14 is located in the limiting groove 13 and can slide along the limiting groove 13. The advantage of such a configuration is that when the lubricating part moves along the slide groove with the slide plate 7, the arcuate lubricating part 4 and the linkage part 11 move together therewith. In this process, the connecting rod 5 passively rotates to switch the arcuate lubricating parts 4 of different radii to resist the welding wire, while the linkage part 11 and the limiting block 14 can only move along the telescopic groove with the slide bar 12 and cannot rotate around the connecting rod 5. That is, when the multiple arcuate lubricating parts 4 rotate, the limiting groove 13 rotates relative to the limiting block 14, so that the distance between the contact point between the limiting block 14 and the limiting groove 13 and the connecting rod 5 increases or decreases, thereby driving the linkage part 1 1 and the slide bar 12 move along the telescopic groove, so that the linkage part 11 is passively moved closer to or away from the connecting rod 5 to resist the arc-shaped lubricating parts 4 of different radii. For example, when the connecting rod 5 rotates to switch the arc-shaped lubricating part 4 with a larger radius to resist the welding wire, the limiting block 14 is resisted by the inner wall of the limiting groove 13 to drive the linkage part 11 and the slide bar 12 away from the connecting rod 5, and then the welding wire is fully lubricated by the linkage part 11 cooperating with the arc-shaped lubricating part 4 with a larger radius. In this way, the welding wire can be fully lubricated by the cooperation of the arc-shaped lubricating part 4 and the linkage part 11 before the welding wire is input into the sizing die 2.

[0044] Furthermore, the limiting block 14 is provided with a plurality of them. Specifically, in the above embodiment, the position of the entire linkage part 11 is limited by a single limiting block 14. Obviously, the linkage part 11 at the position of the single limiting block 14 can contact the arc-shaped lubricating part 4 to surround the welding wire and lubricate the welding wire, while other positions of the linkage part 11 are not restricted and may be separated from the arc-shaped lubricating part 4. For this reason, a plurality of limiting blocks 14 are provided, and the plurality of limiting blocks 14 are all slidably connected in the limiting groove 13. In the above embodiment, the linkage part 11 and the arc-shaped lubricating part 4 are both rigid parts and sponge parts. In this embodiment, in order to make the linkage part 11 better contact the arc-shaped lubricating parts 4 of different radii, the linkage part 11 is divided into an elastic part and a sponge part. One side of the elastic part is fixed to the slide bar 12, and the other side is constructed with a plurality of limiting blocks 14, so as to limit the overall direction of the linkage part 11 through the plurality of limiting blocks 14, so as to better contact the arc-shaped lubricating parts 4 of different radii to lubricate the welding wire. The advantage of such a configuration is that, by providing a plurality of limiting blocks 14 , the linkage portion 11 can adapt to arc-shaped lubricating portions 4 of different radii, so as to fit the welding wire and fully lubricate the welding wire.

[0045] As an alternative to the above-mentioned sponge structure, further, a groove 15 is constructed on the side where the plurality of arc-shaped lubricating parts 4 and the linkage part 11 are close to each other, and a plurality of lubrication holes 16 are evenly arranged in the groove 15. Specifically, in the above-mentioned embodiment, the plurality of arc-shaped lubricating parts 4 and the linkage part 11 all have sponge parts, and the sponge parts can be deformed by being squeezed to fit the surface of the welding wire. In this embodiment, the spiral structure formed by the plurality of arc-shaped lubricating parts 4 as a whole is a rigid structure, and the linkage part 11 is an elastic structure as a whole (that is, it has a certain deformation range and can adapt to fit the arc-shaped lubricating parts 4 of different radii). The arc-shaped lubricating parts 4 and the linkage part 11 are both close to each other. The groove 15 is constructed on the opposite side of the arc-shaped lubricating parts 4 and the linkage part 11. When the arc-shaped lubricating parts 4 and the linkage part 11 conflict with each other, the welding wire can be surrounded by the groove 15 constructed on the opposite side of the two. At the same time, lubricating oil can be input into the groove 15 through the lubrication holes 16 evenly arranged in the groove 15 to lubricate the welding wire. The advantage of such a configuration is that, compared with a sponge structure, this lubrication structure has a longer service life, and the groove 15 can be filled with sufficient lubricating oil through the lubrication hole 16. While applying an oil film to the surface of the welding wire, the friction between the welding wire and the inner wall of the groove 15 can be reduced, thereby improving the smoothness of the tensioning and lubrication of the lubricating part.

[0046] It should be noted that conveying lubricating oil to the welding wire through the sponge structure and the lubrication hole 16 is prior art. For example, an oil pipe 17 and a delivery pump are arranged in the mold box 1 to convey the lubricating oil to the sponge structure or the lubrication hole 16 through the oil pipe 17, and then lubricate the welding wire. This is prior art and will not be elaborated.

[0047] Preferably, in the lubricating part, the overall length of the linkage portion 11 is relatively small and always remains in the same direction of the slide plate 7, and all the lubrication holes 16 on the linkage portion 11 can fit against the surface of the welding wire and continuously lubricate the surface of the welding wire, while the arc-shaped lubrication portion 4 has a longer length, and only part of the lubrication holes 16 thereon fit against the surface of the welding wire and lubricate the surface of the welding wire. Therefore, the lubrication holes 16 on the arc-shaped lubrication portion 4 do not need to all be in operation. If all the lubrication holes 16 on the arc-shaped lubrication portion 4 transport lubricating oil into the groove 15, it will cause a waste of lubricating oil. Further, the limiting groove 13 is connected to a plurality of lubrication holes 16 on the plurality of arc-shaped lubrication parts 4. The limiting block 14 is constructed in an L shape, one end of which is fixed to the outer wall of the linkage part 11, and the other end extends into the limiting groove 13 and is fixed with a resistance block 18 at the end. The number of resistance blocks 18 is the same as the number of limiting blocks 14. An oil delivery channel 19 is constructed in the resistance block 18, the limiting block 14 and the linkage part 11. In the present embodiment, the oil delivery pipe 17 is connected to the oil delivery channel 19, and the plurality of lubrication holes 16 on the linkage part 11 are all connected to the oil delivery channel 19. A connecting cavity 20 connected to the oil delivery channel 19 is constructed on the resistance block 18. The connecting cavity An opening is constructed on one side of 20 close to the linkage part 11, and a rubber pad is fixed to the end of the opening so that the connecting cavity 20 can be connected with some lubrication holes 16 on the arc-shaped lubrication part 4. In this way, the oil pipe 17 can transport the lubricating oil to the oil delivery channel 19 and the connecting cavity 20; when the lubricating oil is transported to the oil delivery channel 19 through the oil pipe 17, all the lubrication holes 16 on the linkage part 11 are connected with the oil delivery channel 19, that is, all the lubrication holes 16 on the linkage part 11 can transport the lubricating oil to the surface of the welding wire, and only the lubrication holes 16 on the arc-shaped lubrication part 4 that are connected with the connecting cavity 20 can transport the lubricating oil to the welding wire. The advantage of such a configuration is that when the lubricating part moves with the slide plate 7, multiple arc-shaped lubricating parts 4 rotate with the connecting rod 5 to switch the arc-shaped lubricating parts 4 with different radii to lubricate the welding wire. At the same time, the linkage part 11 is always attached to the corresponding arc-shaped lubricating part 4. During this process, multiple limiting blocks 14 and multiple resistance blocks 18 move relatively in the limiting groove 13 to transport lubricating oil to the position where the welding wire contacts the arc-shaped lubricating part 4 through the oil delivery channel 19 and the connecting cavity 20 in the multiple resistance blocks 18, so as to adapt to the switching of multiple arc-shaped lubricating parts 4, and then avoid the waste of lubricating oil as much as possible while fully lubricating the welding wire, so as to reduce the pollution to the mold box 1.

[0048] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A surface lubrication device for aluminum alloy welding wire production, comprising a die box, wherein the die box outlet is provided with a sizing die for scraping off the oil film on the surface of the welding wire, characterized in that: Also includes: Guide wheels, two of which are provided to guide the welding wire vertically into the sizing die; A lubricating component is located between the two guide wheels and is rotatably connected in the mold box. The lubricating component includes at least two arc-shaped lubricating parts for lubricating the welding wire. The arc-shaped lubricating parts have the same center and different radii.

2. A surface lubrication device for aluminum alloy welding wire production according to claim 1, characterized in that: A plurality of the arc-shaped lubricating portions are smoothly connected to form a spiral structure.

3. A surface lubrication device for aluminum alloy welding wire production according to claim 1, characterized in that: The lubricating part comprises a connecting rod rotatably connected to the mold box, a support rod is fixed on the connecting rod, and the end of the support rod is fixed to the arc-shaped lubricating part.

4. A surface lubrication device for aluminum alloy welding wire production according to claim 3, characterized in that: A slide plate is slidably connected in the mold box, and the connecting rod is rotatably connected to the slide plate.

5. A surface lubrication device for aluminum alloy welding wire production according to claim 4, characterized in that: A transmission bar is fixed in the mold box, and a transmission wheel connected to the transmission bar is fixed on the connecting rod.

6. A surface lubrication device for aluminum alloy welding wire production according to claim 4, characterized in that: Also included is an elastic member which is arranged in the mold box and is used to force the slide plate away from the guide wheel.

7. A surface lubrication device for aluminum alloy welding wire production according to claim 4, characterized in that: The lubricating member also includes a linkage portion slidably connected to the slide plate, and the linkage portion and the arc-shaped lubricating portion are respectively located on two opposite sides of the welding wire.

8. A surface lubrication device for aluminum alloy welding wire production according to claim 7, characterized in that: A limiting groove is constructed on the same side of the plurality of arc-shaped lubricating parts, the plurality of limiting grooves are smoothly connected, and a limiting block adapted to the limiting groove is constructed on the linkage part.

9. A surface lubrication device for aluminum alloy welding wire production according to claim 8, characterized in that: A plurality of limiting blocks are provided.

10. A surface lubrication device for aluminum alloy welding wire production according to claim 9, characterized in that: A groove is constructed on one side of the plurality of arc-shaped lubricating parts and the linkage part close to each other, and a plurality of lubricating holes are evenly distributed in the groove.

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