Oil spraying structure for copper pipe drawing deformation processing

Abstract

The present application relates to the technical field of drawing processing, in particular to a kind of oil injection structure for copper pipe drawing deformation processing, including the cylinder one that copper pipe passes, spiral groove being set on the inner wall of the cylinder one and the slide block being slidably disposed in the spiral groove, each slide block is all provided with the telescopic rod that can be telescopic motion along the radial direction of the cylinder one, and the end of each telescopic rod is provided with oil chamber;By adopting spiral groove, several slide blocks, several telescopic rods and several hinges, several oil chambers are guided and limited, so that several oil chambers can be arranged spirally, and when telescopic rod is telescopic, the radius of the spiral of several oil chambers changes, thereby achieving the purpose of adjusting the distance between oil chamber and cylinder one axis, and several oil chambers move synchronously, so as to ensure that the distance between several oil chambers and copper pipe outer wall is consistent, facilitate the nozzle on oil chamber can be oil injection treatment to copper pipe of different diameters, improve the applicability of structure.

Description

Technical Field

[0001] The invention relates to the technical field of drawing processing, in particular to an oil spraying structure for copper tube drawing and deformation processing. Background Art

[0002] Copper tube drawing is a commonly used plastic deformation processing technology. It can gradually reduce a larger diameter tube blank to the target diameter and wall thickness through a die to meet the precision dimensional requirements of different application scenarios. During the copper tube drawing process, great contact pressure and severe friction will be generated between the copper tube and the inner surface of the drawing die. In order to effectively reduce the friction coefficient, reduce die wear, prevent the copper tube surface from being scratched or broken, and take away the heat generated by deformation, it is necessary to apply drawing oil or other lubricating oil on its surface before the copper tube enters the die.

[0003] The traditional coating method is to spray oil onto the surface of the copper tube passing through the oil spray ring through the oil spray ring. However, since the inner diameter of the oil spray ring is fixed, an oil spray ring of a single size can only be applied to copper tubes of corresponding size. When processing copper tubes of different diameters, the entire oil spray ring needs to be replaced, which not only requires disassembly and reassembly of the oil spray ring, but also requires repositioning and connection of pipelines. The operation is cumbersome, and the purchase or production of a large number of oil spray rings will cost a lot of money. If a large inner diameter oil spray ring is used to spray oil on a small-sized copper tube, a large amount of oil will be sprayed into the air, resulting in oil waste. In addition, the amount of oil attached to the surface of the copper tube is small, which can easily affect the lubrication effect when the copper tube is drawn. Summary of the Invention

[0004] The present invention provides an oil spraying structure for copper tube drawing and deformation processing, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An oil spraying structure for copper tube drawing and deformation processing comprises a cylinder and an oil spraying assembly arranged on the inner wall thereof, wherein a plurality of oil spraying assemblies are arranged along the circumference of the cylinder;

[0007] A slide groove is provided on an inner wall of the cylinder, the slide groove is spirally extended along an axis of the cylinder, and the oil injection assembly is slidably connected to the slide groove;

[0008] The oil spray assembly is slidably connected to the slide groove through a slider. A plurality of nozzles are provided on the side of the nozzle of the oil spray assembly facing an axis of the cylinder. The nozzle is connected to the slider through a telescopic rod. The nozzles on two adjacent oil spray assemblies are connected by a hinge. The telescopic rod is arranged along a radial direction of the cylinder.

[0009] Furthermore, the nozzle includes an oil chamber and the nozzle provided thereon, the oil chamber is fixed to the end of the telescopic rod away from the slider, and two adjacent oil chambers are connected by an oil guide hose;

[0010] One end of the hinge is fixedly connected to the oil chamber, and the other end is slidably connected to the oil chamber. A guide groove is provided on the side of the oil chamber corresponding to the hinge. The guide groove is perpendicular to the sliding groove, and one end of the hinge is slidably connected to the guide groove.

[0011] Furthermore, a plurality of long openings are arranged in parallel on one side of the oil chamber facing an axis of the cylinder, an intermediate body is provided between two adjacent long openings, a movable plate is provided on the intermediate body, and a plurality of filling blocks are provided on the movable plate along the length direction of the long openings;

[0012] The movable plate is slidably connected to the intermediate body and fixed by a first locking assembly, the filling block is slidably connected to the movable plate and fixed by a second locking assembly, the filling block cooperates with the movable plate to block the long opening, and forms the nozzle between two adjacent filling blocks.

[0013] Furthermore, a platform is provided at the edge of the intermediate body near the long opening, and one side of the movable plate is slidably arranged on the platform;

[0014] A mounting groove is provided on the side of the movable plate away from the intermediate body. The mounting groove is opened perpendicular to the length direction of the long mouth, and a plurality of mounting grooves are arranged in parallel in the length direction of the long mouth. The filling block is slidably provided in the mounting groove, and the side of the filling block away from the movable plate abuts against the side wall of the long mouth.

[0015] Furthermore, the first locking assembly includes a first fixing plate and a first fastening bolt, wherein the first fixing plate is fixed on both sides of the oil chamber, a first limiting groove is formed on the first fixing plate, and the first fastening bolt is disposed on the movable plate and slidably connected to the first limiting groove;

[0016] A sliding column is provided on the filling block, a second fixed plate is provided on the movable plate, a second limiting groove is opened on the second fixed plate, and the filling block is slidably connected to the second limiting groove through the sliding column;

[0017] The second locking assembly also includes a sliding frame and a plurality of connecting rods arranged thereon, the sliding frame is slidably connected to the second fastening bolt on the side of the oil chamber, and the connecting rod is fixedly connected to a plurality of sliding columns on the plurality of filling blocks on the same movable plate.

[0018] Furthermore, one of the two nozzles located at the head and tail ends of the plurality of nozzles arranged in the chute is fixed, and the other is driven by a driving structure to adjust the distance between the two adjacent sliders;

[0019] The driving structure includes a power ring rotatably arranged on an inner wall of the cylinder, and a sliding wall slidably installed on the power ring along the axis direction of the power ring. The sliding wall is fixedly connected to the slider, and the power ring is driven to rotate by a power device.

[0020] Furthermore, a cylinder body 2 is coaxially sleeved on one end of the cylinder body 1, the cylinder body 1 is rotatably arranged on the cylinder body 2, and a negative pressure tube is arranged on the cylinder body 2.

[0021] Furthermore, a first sealing structure is provided at one end of the cylinder body 1 away from the cylinder body 2, and a second sealing structure is provided at one end of the cylinder body 2 away from the cylinder body 1.

[0022] Furthermore, the first sealing structure and the second sealing structure are both configured as rubber disks, a circular hole is formed on the rubber disk, and the circular hole is coaxially arranged with an axis of the cylinder.

[0023] Furthermore, the rubber disc is conical in shape.

[0024] The beneficial effects of the present invention are:

[0025] By adopting a slide groove, a plurality of sliders, a plurality of telescopic rods and a plurality of hinges to guide and limit the plurality of oil chambers, the plurality of oil chambers can be arranged in a spiral shape, and when the telescopic rod is extended and retracted, the radius of the spiral in which the plurality of oil chambers are located changes, thereby achieving the purpose of adjusting the distance between the oil chamber and an axis of the cylinder body, and the plurality of oil chambers move synchronously, thereby ensuring that the distance between the plurality of oil chambers and the outer wall of the copper tube is consistent, making it convenient for the nozzles on the oil chamber to spray oil on copper tubes of different diameters, improving the applicability of the structure, avoiding the tedious operation of replacing oil spray rings of different sizes in the traditional method, and avoiding the cost investment of a large number of oil spray rings; since the plurality of oil chambers are arranged in a spiral shape, the outer wall of the copper tube can be fully sprayed with oil in the circumferential direction of the copper tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1It is a structural schematic diagram of the present invention;

[0028] Figure 2 yes Figure 1 Structural diagram from another perspective;

[0029] Figure 3 This is a schematic diagram of the second cross-sectional structure of the cylinder in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of a cross-sectional structure of a cylinder in an embodiment of the present invention;

[0031] Figure 5 yes Figure 4 Schematic diagram of the middle slider and the structure above it;

[0032] Figure 6 yes Figure 5 Schematic diagram of the structure of the oil chamber;

[0033] Figure 7 yes Figure 6 A partial enlarged structural diagram of the middle oil chamber;

[0034] Figure 8 yes Figure 7 Schematic diagram of the structure of the oil chamber;

[0035] Figure 9 yes Figure 3 Schematic diagram of the locally enlarged structure at point A in the middle.

[0036] Reference numerals: 1, cylinder 1; 11, slide; 12, first sealing structure; 2, oil injection assembly; 21, slider; 22, telescopic rod; 23, nozzle; 24, oil chamber; 241, long mouth; 242, intermediate body; 2421, platform; 243, movable plate; 2431, mounting groove; 244, filling block; 245, guide groove; 246, nozzle; 25, first locking assembly; 251, first fixing plate; 252, first limiting groove; 253, first fastening bolt; 26, second locking assembly; 261, slide column; 2 62. Second fixing plate; 263. Second limiting groove; 264. Sliding frame; 265. Connecting rod; 266. Second fastening bolt; 27. Hinge; 28. Oil guide hose; 3. Driving structure; 31. Power ring; 32. Sliding wall; 33. Power device; 4. Second cylinder; 41. Negative pressure pipe; 42. Second sealing structure; 431. Snap ring; 432. Sleeve ring; 441. Gear ring; 442. Second motor; 443. Gear; 451. Sealing ring; 452. Groove ring; 453. Annular chamber; 46. Oil supply pipe; 47. Rubber ring. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0040] like Figures 1 to 9 The oil spray structure shown in the figure is used for copper tube drawing and deformation processing, including a cylinder 1 and an oil spray assembly 2 arranged on its inner wall, and multiple oil spray assemblies 2 are arranged along the circumference of the cylinder 1; a slide groove 11 is opened on the inner wall of the cylinder 1, and the slide groove 11 extends in a spiral shape along the axis of the cylinder 1, and the oil spray assembly 2 is slidably connected to the slide groove 11; the oil spray assembly 2 is slidably connected to the slide groove 11 through a slider 21, and multiple nozzles 246 are provided on the side of the nozzle 23 of the oil spray assembly 2 facing the axis of the cylinder 1, and the nozzle 23 is connected to the slider 21 through a telescopic rod 22. The nozzles 23 on two adjacent oil spray assemblies 2 are connected by a hinge 27, and the telescopic rod 22 is arranged along the radial direction of the cylinder 1.

[0041] In the present invention, the axial direction of the cylinder 1 coincides with the conveying direction of the copper tube, that is, the copper tube is conveyed through the cylinder 1, and the cylinder 1 can be installed on a mold or a drawing machine. By coinciding with the axis of the cylinder 1 and the copper tube, the distance between each nozzle 23 in the cylinder 1 and the outer wall of the copper tube can be kept consistent, thereby avoiding the deviation in the distance between each nozzle 23 and the outer wall of the copper tube, which leads to inconsistent amounts of oil sprayed to the surface of the copper tube by the nozzles 246 on each nozzle 23, affecting the lubrication effect. The axis of the chute 11 in the cylinder 1 coincides with the axis of the cylinder 1, and the chute 11 is mainly used to provide guidance for several sliders 21; the telescopic rod 22 is used to connect the slider 21 and the nozzle 23. Since the telescopic direction of the telescopic rod 22 is along the radial direction of the cylinder 1, when the slider 21 moves in the slide groove 11, the telescopic direction of the telescopic rod 22 can always be toward the axis of the cylinder 1, thereby utilizing the telescopic rod 22 to achieve guidance and limitation of the nozzle 23; the internal space of the nozzle 23 is used to store and transport oil, and the oil in the nozzle 23 can be sprayed toward the axis of the cylinder 1 through several nozzles 246, thereby spraying the oil onto the surface of the copper tube.

[0042] In order to improve the uniformity of oil spraying, the working surface of the nozzle 23 is in the shape of an arc, and the axis of the arc coincides with the axis of the cylinder 1. The spray direction of each nozzle 246 is toward the axis of the cylinder 1. Therefore, the distance between each nozzle 246 on the working surface of the nozzle 23 and the outer wall of the copper tube is equal; since two adjacent nozzles 23 are connected by a hinge 27, the distance between the two adjacent nozzles 23 is constant. When a telescopic rod 22 is extended or retracted, the distance between the nozzle 23 on it and the axis of the cylinder 1 changes. At this time, the nozzle 23 will be pulled by the hinge 27. Adjacent nozzles 23 move, and adjacent nozzles 23 will also be guided by the telescopic rods 22 thereon, so that the adjacent nozzles 23 will move synchronously. That is, by utilizing the guiding effect of the telescopic rods 22 and the fixed distance connection effect of the hinges 27 between the two adjacent nozzles 23, the synchronous movement of several nozzles 23 can be achieved, so that the distance between each nozzle 23 and the copper tube is always kept equal, and the direction of each nozzle 246 on the nozzle 23 is always perpendicular to the outer wall of the copper tube; using the above-mentioned movement method, the radius of the spiral in which several nozzles 23 are located can be adjusted.

[0043] Among them, the nozzle 23 includes an oil chamber 24 and a nozzle 246 arranged thereon. The oil chamber 24 is fixed to the end of the telescopic rod 22 away from the slider 21, and the two adjacent oil chambers 24 are connected by an oil guide hose 28; one end of the hinge 27 is fixedly connected to the oil chamber 24, and the other end is slidably connected to the oil chamber 24. A guide groove 245 is provided on the side of the oil chamber 24 corresponding to the hinge 27. The guide groove 245 is arranged perpendicular to the slide groove 11, and one end of the hinge 27 is slidably connected to the guide groove 245.

[0044] When drawing the copper tube, the copper tube continuously passes through the cylinder 1 and the several oil chambers 24 therein. The oil in the several oil chambers 24 can be sprayed onto the surface of the copper tube through the several nozzles 246, thereby achieving the oil spray lubrication effect on the copper tube. When it is necessary to spray oil on copper tubes of different diameters, the telescopic length of the telescopic rod 22 can be adjusted. Since the several oil chambers 24 will move synchronously, the distance between the several oil chambers 24 and the axis of the cylinder 1 will change synchronously, thereby making the distance between the oil chamber 24 and the outer wall of the copper tube of different diameters always maintained within the specified range, making it convenient for the several oil chambers 24 to be suitable for copper tubes of different diameters; the oil guide hose 28 between two adjacent oil chambers 24 can realize the oil transportation between the several oil chambers 24, thereby only needing to transport oil into one oil chamber 24 to make the oil flow into the several oil chambers 24.

[0045] It should be pointed out that since the multiple oil chambers 24 will move synchronously, when the diameter of the spiral in which the multiple oil chambers 24 are located changes, the slider 21 will slide in the slide groove 11, and the distance between the two adjacent sliders 21 will change. At this time, the movement of the multiple oil chambers 24 is similar to twisting the two ends of a spring to change the diameter of the spring; in order to improve the comprehensiveness of the oil injection and avoid omissions, the spiral formed by the multiple oil chambers 24 is at least two turns, so that the copper tube can be sprayed with oil at least twice.

[0046] By adopting the slide groove 11, several sliders 21, several telescopic rods 22 and several hinges 27 to guide and limit the several oil chambers 24, the several oil chambers 24 can be arranged in a spiral shape, and when the telescopic rod 22 is extended and retracted, the radius of the spiral in which the several oil chambers 24 are located changes, thereby achieving the purpose of adjusting the distance between the oil chamber 24 and the axis of the cylinder 1, and the several oil chambers 24 move synchronously, thereby ensuring that the distance between the several oil chambers 24 and the outer wall of the copper tube is consistent, making it convenient for the nozzles 246 on the oil chamber 24 to spray oil on copper tubes of different diameters, improving the applicability of the structure, avoiding the tedious operation of replacing injection rings of different sizes in the traditional method, and avoiding the cost investment of a large number of injection rings; since the several oil chambers 24 are arranged in a spiral shape, the outer wall of the copper tube can be fully sprayed with oil in the circumferential direction of the copper tube.

[0047] In this embodiment, it is considered that during the oil spraying process of the copper tube, impurities such as metal powder, oil sludge, and oil film in the oil may clog some nozzles 246. Once the nozzles 246 are clogged, the surface of the copper tube in the corresponding area cannot adhere to the oil, resulting in increased friction in the area, which can easily damage the copper tube. Therefore, the blockage of the nozzles 246 is a common, serious, and difficult to handle problem. To solve this problem, this embodiment makes the diameter of the nozzles 246 adjustable. By increasing the diameter of the nozzles 246, the blockage can be flushed out, thereby ensuring that the nozzles 246 are unobstructed.

[0048] like Figures 6 to 8 As shown, a plurality of long openings 241 are arranged in parallel on one side of the oil chamber 24 facing the axis of the cylinder 1, an intermediate body 242 is provided between two adjacent long openings 241, a movable plate 243 is provided on the intermediate body 242, and a plurality of filling blocks 244 are provided on the movable plate 243 along the length direction of the long openings 241; the movable plate 243 is slidably connected to the intermediate body 242 and is fixed by a first locking assembly 25, the filling block 244 is slidably connected to the movable plate 243 and is fixed by a second locking assembly 26, the filling block 244 cooperates with the movable plate 243 to block the long opening 241, and forms a nozzle 246 between two adjacent filling blocks 244.

[0049] Among them, the long mouth 241 is used to accommodate part of the movable plate 243 and the filling block 244. The side wall of the movable plate 243 and the side wall of the long mouth 241 can be used as the two inner walls in the width direction of the nozzle 246, and the side walls of the two adjacent filling blocks 244 can be used as the two inner walls in the length direction of the nozzle 246. Therefore, the nozzle 246 can be formed by utilizing the movable plate 243, the side wall of the long mouth 241 and the two filling blocks 244, and the purpose of adjusting the diameter of the nozzle 246 can be achieved by utilizing the sliding setting of the movable plate 243 in the platform 2421 and the sliding setting of the filling block 244 in the slide groove 11.

[0050] Furthermore, a platform 2421 is provided at the edge of the intermediate body 242 near the long mouth 241, and one side of the movable plate 243 is slidably set on the platform 2421; a mounting groove 2431 is provided on the side of the movable plate 243 away from the intermediate body 242, and the mounting groove 2431 is opened along a direction perpendicular to the length of the long mouth 241, and multiple mounting grooves 2431 are arranged in parallel in the length direction of the long mouth 241, and the filling block 244 is slidably set in the mounting groove 2431, and the side of the filling block 244 away from the movable plate 243 abuts against the side wall of the long mouth 241.

[0051] like Figure 8 As shown, the platform 2421 is opened on the top of the intermediate body 242, and one side of the platform 2421 extends into a long opening 241, and the other side is separated from another long opening 241. Therefore, when the movable plate 243 slides in the platform 2421, the movable plate 243 and the intermediate body 242 can always seal the oil in the oil chamber 24 to prevent the oil from flowing freely. In order to improve the sealing performance, sealing strips, sealing gaskets and other structures can also be added between the movable plate 243 and the platform 2421.

[0052] Secondly, the movable plate 243 and the filling block 244 are fixed respectively by the first locking assembly 25 and the second locking assembly 26. The first locking assembly 25 includes a first fixing plate 251 and a first fastening bolt 253. The first fixing plate 251 is fixed to both sides of the oil chamber 24. A first limiting groove 252 is opened on the first fixing plate 251. The first fastening bolt 253 is set on the movable plate 243 and is slidably connected to the first limiting groove 252. A sliding column 261 is set on the filling block 244. A second fixed plate 262 is provided on the movable plate 243, and a second limiting groove 263 is opened on the second fixed plate 262. The filling block 244 is slidingly connected to the second limiting groove 263 through a sliding column 261; the second locking assembly 26 also includes a sliding frame 264 and a plurality of connecting rods 265 arranged thereon. The sliding frame 264 is slidingly connected to the second fastening bolt 266 on the side of the oil chamber 24, and the connecting rod 265 is fixedly connected to the plurality of sliding columns 261 on the plurality of filling blocks 244 on the same movable plate 243.

[0053] With the above-mentioned structure, when each filling block 244 is received in the corresponding mounting groove 2431, the movable plate 243 will block part of the long opening 241, so that a long channel is formed between the side wall of the movable plate 243 and the side wall of the long opening 241, and the oil can be sprayed outward through the long channel. At this time, the oil spraying mode can be changed from the point-like nozzle 246 to the linear long channel. In the linear oil spraying mode, in order to achieve oil diffusion, the side wall of the movable plate 243 and the side wall of the long opening 241 can be set as follows Figure 7 The arc shown is used to guide the oil to spread. When the movable plate 243 is combined with a plurality of filling blocks 244, a multi-point oil injection operation can be achieved.

[0054] In this embodiment, when the positions of the oil chambers 24 are adjusted, the radius of the spiral in which the oil chambers 24 are located changes, so the distance between two adjacent oil chambers 24 along the axis of the cylinder 1 changes. In order to achieve the connection between the two adjacent oil chambers 24 by the hinge 27, as shown in FIG. Figure 6 As shown, one end of the hinge 27 is fixedly connected to the side wall of one of the two adjacent oil chambers 24, and the other end of the hinge 27 is slidably connected to the guide groove 245 on the side wall of the other oil chamber 24; in this way, when the distance between the two adjacent oil chambers 24 along the axial direction of the cylinder-1 changes, the hinge 27 can slide on the corresponding oil chamber 24, while the distance between the two adjacent oil chambers 24 in the circumferential direction of the cylinder-1 does not change.

[0055] In order to adjust the position of the oil chamber 24, a driving structure 3 is provided in the cylinder 1, and the driving structure 3 is used to adjust the distance between two adjacent sliders 21; when the distance between the two adjacent sliders 21 changes, the distance between the corresponding oil chamber 24 and the axis of the cylinder 1 changes, and the telescopic rod 22 performs a telescopic movement, thereby achieving the purpose of adjusting the oil chamber 24; of course, in some embodiments, the driving structure 3 can also directly provide the oil chamber 24 with a force along the circumferential or radial direction of the cylinder 1.

[0056] In this embodiment, one of the two nozzles 23 located at the head and tail ends of the multiple nozzles 23 arranged in the slide 11 is fixed, and the other is driven by the driving structure 3 and adjusts the distance between the two adjacent sliders 21; the driving structure 3 includes a power ring 31 rotatably set on the inner wall of the cylinder 1, and a sliding wall 32 slidably installed on the power ring 31 along the axial direction of the power ring 31. The sliding wall 32 is fixedly connected to the slider 21, and the power ring 31 is driven to rotate by the power device 33.

[0057] like Figure 4 As shown, taking the two sliders 21 that are the farthest apart among the multiple sliders 21 as an example, one slider 21 is fixed on the cylinder 1, and the other slider 21 is connected to the sliding arm, so that the power ring 31 can be placed on the outside of the multiple sliders 21 to avoid interference between the movement of the slider 21 and the rotation of the power ring 31; when the power ring 31 rotates, it will push the corresponding slider 21 to slide in the slide groove 11 through the sliding arm. At this time, in the axial direction of the cylinder 1, the distance between the slider 21 and the power ring 31 changes, so that the sliding arm slides on the power ring 31; the power of the power ring 31 can be provided by the power device 33.

[0058] In this embodiment, in order to improve the uniformity of oil injection, the nozzles 246 on the plurality of oil chambers 24 can rotate around the copper tube when injecting oil. To achieve this purpose, the oil injection structure also includes a cylinder 2 4 coaxially arranged with the cylinder 1, and the cylinder 1 can be rotatably arranged on the cylinder 2 4; when the cylinder 1 rotates on the cylinder 2 4, it will drive the plurality of oil chambers 24 to move in a synchronous circular motion, so that the nozzles 246 can rotate around the copper tube to perform oil injection.

[0059] like Figure 1 、 Figure 3 and Figure 8As shown, in order to achieve the connection and sealing between cylinder 1 and cylinder 2 4, several rubber rings 47 can be set between cylinder 2 4 and cylinder 1, a snap ring 431 is set at the end of cylinder 2 4, and a sleeve ring 432 is set on the outer wall of cylinder 1. The snap ring 431 and the end of cylinder 2 4 clamp the sleeve ring 432 so that the sleeve ring 432 can be rotatably connected with cylinder 2 4. A gear ring 441 is set on the sleeve ring 432, and the motor 2 442 and the gear 443 are used to provide power for the gear ring 441, so that cylinder 1 can rotate on cylinder 2 4. The motor 2 442 and cylinder 2 4 are relatively fixed, and cylinder 2 4 is used to provide support for cylinder 1.

[0060] As the cylinder 1 rotates, in order to realize the oil supply work to the rotating oil chamber 24, a sealing ring 451 and a groove ring 452 are set in the cylinder 24. The sealing ring 451 and the groove ring 452 form an annular chamber 453. The sealing ring 451 is fixed on the cylinder 1, and the groove ring 452 is fixed on the cylinder 24. The annular chamber 453 is connected to the external oil circuit through the oil supply pipe 46. A secondary oil pipe is provided between the sealing ring 451 and an oil chamber 24. The secondary oil pipe is used to connect the oil chamber 24 with the annular chamber 453. In this way, oil can be introduced into several oil chambers 24 through the oil supply pipe 46, the annular chamber 453 and the secondary oil pipe. When the cylinder 1 rotates, the sealing ring 451 and the groove ring 452 rotate relative to each other, and the oil maintains a stable transmission state.

[0061] In this embodiment, cylinder 1 (1) is coaxially sleeved with cylinder 2 (4) at one end. Cylinder 1 (1) is rotatably mounted on cylinder 2 (4), and a negative pressure tube (41) is mounted on cylinder 2 (4). A first sealing structure (12) is mounted on the end of cylinder 1 (1) away from cylinder 2 (4), and a second sealing structure (42) is mounted on the end of cylinder 2 (4) away from cylinder 1 (1). Both the first sealing structure (12) and the second sealing structure (42) are configured as rubber discs with a circular hole coaxial with the axis of cylinder 1 (1). The rubber discs are conical in shape.

[0062] During the process of oil spray lubrication of the copper tube, a large amount of excess oil mist will exist inside the cylinder 1. In order to facilitate the recovery of the oil mist and avoid its pollution of the environment, Figure 1 As shown, a first sealing structure 12 is provided at one end of cylinder 1 away from cylinder 2 4, a second sealing structure 42 is provided at one end of cylinder 2 4 away from cylinder 1, and a negative pressure pipe 41 is provided on cylinder 2 4 for forming a negative pressure inside cylinder 1 and cylinder 2 4; the negative pressure pipe 41 can be used to extract air and oil mist from cylinder 1 and cylinder 2 4, thereby facilitating the recovery of oil mist, and this extraction method can form a negative pressure inside cylinder 1, and the negative pressure can be used to allow gas to enter cylinder 1 only from the outside, thereby preventing oil mist from diffusing outside cylinder 1; the sealing structure is mainly used to seal the position where the copper tube enters and moves out of cylinder 1 or cylinder 2 4.

[0063] Based on the above implementation, Figure 1 As shown, the rubber disc can be fixed to the end of the cylinder 1 or the end of the cylinder 2 4 by a pressure ring and bolts. Since the inner wall of the circular hole on the rubber disc fits with the outer wall of the copper tube, the sealing performance can be improved. In actual use, since the rubber disc has a certain elasticity, the diameter of the circular hole can be smaller than the diameter of the copper tube. In this way, when the copper tube passes through the circular hole, the inner wall of the circular hole and the outer wall of the copper tube can fit more tightly, and the sealing performance is better.

[0064] The rubber disc is set to be conical, and its conical direction is the same as or opposite to the conveying direction of the copper tube; the conical shape characteristics of the rubber disc can be used to make the rubber disc as a whole have a certain strength, so that a certain strength of support can be provided around the circular hole, so that the circular hole position can scrape and clean the impurities on the outer wall of the copper tube, thereby preventing impurities from entering the cylinder body 1 or between the copper tube and the mold; taking the input end of the cylinder body 1 as an example, when the conical direction of the rubber disc is opposite to the conveying direction of the copper tube, the rubber disc cone faces the outside of the cylinder body 1, and the circular hole area can shovel and scrape the outer wall of the copper tube; when the conical direction of the rubber disc is the same as the conveying direction of the copper tube, the rubber disc cone faces the inside of the cylinder body 1, and the circular hole area cleans and scrapes the impurities on the outer wall of the copper tube.

[0065] Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil spraying structure for copper tube drawing and deformation processing, characterized in that: It comprises a cylinder and an oil spray assembly arranged on the inner wall thereof, wherein a plurality of oil spray assemblies are arranged along the circumference of the cylinder; A slide groove is provided on an inner wall of the cylinder, the slide groove is spirally extended along an axis of the cylinder, and the oil injection assembly is slidably connected to the slide groove; The oil spray assembly is slidably connected to the slide groove via a slider, and a plurality of nozzles are provided on a side of the nozzle of the oil spray assembly facing an axis of the cylinder. The nozzle is connected to the slider via a telescopic rod, and the nozzles on two adjacent oil spray assemblies are connected via a hinge. The telescopic rod is provided along a radial direction of the cylinder. The nozzle includes an oil chamber and a nozzle provided thereon, wherein the oil chamber is fixed to an end of the telescopic rod away from the slider, and two adjacent oil chambers are connected by an oil guide hose; One end of the hinge is fixedly connected to the oil chamber, and the other end is slidably connected to the oil chamber. A guide groove is provided on the side of the oil chamber corresponding to the hinge. The guide groove is perpendicular to the slide groove, and one end of the hinge is slidably connected to the guide groove. A plurality of long openings are arranged in parallel on one side of the oil chamber facing an axis of the cylinder, an intermediate body is provided between two adjacent long openings, a movable plate is provided on the intermediate body, and a plurality of filling blocks are provided on the movable plate along the length direction of the long openings; The movable plate is slidably connected to the intermediate body and fixed by a first locking assembly, the filling block is slidably connected to the movable plate and fixed by a second locking assembly, the filling block cooperates with the movable plate to block the long opening, and the nozzle is formed between two adjacent filling blocks; A platform is provided at the edge of the intermediate body near the long opening, and one side of the movable plate is slidably arranged on the platform; A mounting groove is provided on a side of the movable plate away from the intermediate body, the mounting groove being opened perpendicular to the length direction of the long opening, and a plurality of the mounting grooves are arranged in parallel in the length direction of the long opening, the filling block is slidably provided in the mounting groove, and the side of the filling block away from the movable plate abuts against the side wall of the long opening; Among the plurality of nozzles arranged in the chute, one of the two nozzles located at the head and tail ends is fixed, and the other is driven by a driving structure to adjust the distance between the two adjacent sliders; The driving structure includes a power ring rotatably arranged on an inner wall of the cylinder, and a sliding wall slidably installed on the power ring along the axis direction of the power ring. The sliding wall is fixedly connected to the slider, and the power ring is driven to rotate by a power device.

2. The oil spraying structure for copper tube drawing and deformation processing according to claim 1, characterized in that: The first locking assembly includes a first fixing plate and a first fastening bolt, wherein the first fixing plate is fixed to both sides of the oil chamber, a first limiting groove is formed on the first fixing plate, and the first fastening bolt is disposed on the movable plate and slidably connected to the first limiting groove; A sliding column is provided on the filling block, a second fixed plate is provided on the movable plate, a second limiting groove is opened on the second fixed plate, and the filling block is slidably connected to the second limiting groove through the sliding column; The second locking assembly also includes a sliding frame and a plurality of connecting rods arranged thereon, the sliding frame is slidably connected to the second fastening bolt on the side of the oil chamber, and the connecting rod is fixedly connected to a plurality of sliding columns on the plurality of filling blocks on the same movable plate.

3. The oil spraying structure for copper tube drawing and deformation processing according to claim 1, characterized in that: A cylinder body 2 is coaxially sleeved on one end of the cylinder body 1. The cylinder body 1 is rotatably arranged on the cylinder body 2. A negative pressure tube is arranged on the cylinder body 2.

4. The oil spraying structure for copper tube drawing and deformation processing according to claim 3, characterized in that: A first sealing structure is provided at one end of the cylinder body 1 away from the cylinder body 2, and a second sealing structure is provided at one end of the cylinder body 2 away from the cylinder body 1.

5. The oil spraying structure for copper tube drawing and deformation processing according to claim 4, characterized in that: The first sealing structure and the second sealing structure are both configured as rubber disks, each of which is provided with a circular hole, and the circular hole is coaxially arranged with an axis of the cylinder.

6. The oil spraying structure for copper tube drawing and deformation processing according to claim 5, characterized in that: The rubber disc is conical in shape.

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