Surface cold rolling machine oil recycling machine for seamless stainless steel pipe
By designing a surface cold rolling oil recovery machine for seamless stainless steel pipes, the problem of imperfect cold rolling oil supply during the cold rolling process is solved, the lubrication effect and production quality are improved, and the smoothness of the inner and outer surfaces of the billet is ensured.
Patent Information
- Application Number
- CN202420345717.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-02-26
AI Technical Summary
During the cold rolling process, the supply structure of the cold rolling mill oil is imperfect, resulting in poor lubrication effect and affecting the production quality. Moreover, cutting chips may exist in the refluxed cold rolling mill oil, further affecting the quality.
A surface cold rolling mill oil recovery machine for seamless stainless steel pipes is designed, including a diameter expansion device, a straightening device, a cutting device and a return device. The return device realizes the filtration and return flow of cold rolling oil through the hopper, filter frame and filter cylinder, and the nozzle mechanism lubricates the steel billet and ejection head.
By recirculating the cold rolling machine oil, the lubrication effect is improved, the wear and tear of the diameter expansion and straightening devices is reduced, the production quality is improved through multiple filtrations, and the smoothness of the internal and external surfaces of the steel billet is ensured.
Smart Images
Figure CN222369972U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of production of seamless stainless steel pipes, and in particular to a surface cold rolling oil recovery machine for seamless stainless steel pipes. Background Art
[0002] Seamless stainless steel pipes are widely used in the transportation of various gas or fluid media. Seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, jacking pipes, etc. Among them, cold-rolled precision seamless steel pipes are mainly used for precision mechanical structures and hydraulic equipment. During cold rolling and hole expansion, the jacking head needs to pass through the seamless stainless steel pipe, thereby changing the inner diameter of the seamless stainless steel pipe, and the seamless stainless steel pipe is cut off by the cutting device when it is processed to the appropriate length. For the convenience of expression, the seamless stainless steel pipe is referred to as a billet in the following text.
[0003] During the expansion process, the steel billet needs to use cold rolling machine oil for lubrication. As the processing action continues, the cold rolling machine oil is either taken away by the processed steel billet or flows to the bottom side of the equipment. If the cold rolling machine oil is not supplied in time, the smoothness of the subsequent movement of the steel billet will be reduced, and the friction between the inner wall of the steel billet and the top extension head will increase, affecting the surface production quality. If the cold rolling machine oil refluxed from the bottom side of the equipment is used directly, there will be cutting debris in the cold rolling machine oil, which will also affect the surface production quality. Utility Model Content
[0004] In order to solve the problem of imperfect cold rolling mill oil supply structure, the purpose of the present application is to provide a surface cold rolling mill oil recovery machine for seamless stainless steel pipes.
[0005] The present application provides a surface cold rolling oil recovery machine for seamless stainless steel pipes, which adopts the following technical solution:
[0006] A surface cold rolling mill oil recovery machine for seamless stainless steel pipes, comprising an expanding device, a straightening device and a cutting device arranged in sequence, the expanding device comprising a top extension head for extending into the inner wall of a steel billet, an upper roller and a lower roller for abutting against the outer wall of the steel billet, a reflux device is provided between the cutting device and the straightening device, the reflux device comprising a receiving hopper connected to the lower side of a moving path of the top extension head, a filter frame connected to the receiving hopper, a filter cylinder connected to the filter frame, a filter hole is provided on the filter cylinder, one side of the receiving hopper extends into the filter cylinder, the bottom wall of the filter frame is connected to the reflux mechanism, and the reflux mechanism is connected to a nozzle mechanism for spraying cold rolling mill oil on the steel billet and the top extension head.
[0007] By adopting the above technical scheme, the steel billet will pass through the diameter expansion device, the straightening device and the cutting device. The diameter expansion device is used to expand the diameter of the steel billet as a whole, mainly relying on the top extension head, the upper roller and the lower roller to form a constrained space, so that the steel billet can pass through and expand. The straightening device is used to correct the direction of the steel billet after the diameter expansion, and at the same time make the expansion of the outer wall of the steel billet within a certain range; the additional reflux device can produce additional gain effect. During the cold rolling process, the cold rolling machine oil can fall into the receiving hopper, and the cold rolling machine oil on the receiving hopper flows into the filter The cylinder body and the filter cylinder body achieve a certain degree of filtration, and then return to the nozzle mechanism through the reflux mechanism. The nozzle mechanism refills the cold rolling machine oil to the top extension head, so that the inner wall of the billet can be lubricated. The nozzle mechanism directly sprays the cold rolling machine oil to the outer wall of the billet, which can lubricate the outside and reduce the wear of the expansion device and the straightening device. The purpose of reflux and utilization of the cold rolling machine oil is achieved as a whole. In the process, it is filtered first and then output, so that debris generated by cutting, for example, can be filtered into the filter cylinder body, thereby improving the production quality of the inner and outer surfaces of the billet as a whole.
[0008] Optionally, the filter cylinder is rotatably connected to the filter frame, and the filter frame is provided with a driving mechanism for driving the filter cylinder to rotate.
[0009] By adopting the above technical solution, the filter cylinder can rotate continuously, so that the debris particles can be moved during the rotation, avoiding large debris particles from blocking the filter holes and allowing the cold rolling machine oil to pass through the filter holes smoothly.
[0010] Optionally, the filter holes of the filter cylinder are arranged in an array along the axial outer side wall of the filter cylinder, the filter cylinder is tilted with the side close to the receiving hopper as the low point and the side away from the receiving hopper as the high point, the inner wall of the filter cylinder is connected with an inner spiral plate that spirally rises, and the filter frame is provided with a residual material box near the high point.
[0011] By adopting the above technical scheme, it should be noted that multiple filtration can make the cold rolling machine oil cleaner, wherein the filter cylinder can achieve better filtration at different heights on the overall outer wall, and filter holes are retained at both high and low points to achieve the filtration function. Secondly, the inner spiral plate in the filter cylinder is to drive the debris to move up repeatedly, so that impurities such as debris particles are concentrated at the high points of the filter cylinder, and finally fall into the residual material box, thereby facilitating the cleaning of the filter cylinder and maintaining a better filtration capacity.
[0012] Optionally, the driving mechanism includes a driving motor and a reduction box driven by the driving motor, the reduction box is provided with a driving shaft, and the filter cylinder is fixedly connected to a rotating disk connected to and driven by the driving shaft to rotate.
[0013] By adopting the above technical solution, the driving motor first drives the reduction box, and the reduction box then drives the driving shaft, thereby reducing speed and increasing the torque, thereby improving the torsional force of the driving shaft. The rotating disk is connected to the filter cylinder at multiple points, which can make the filter cylinder evenly stressed and rotate smoothly.
[0014] Optionally, the filter frame is provided with a plurality of pulleys for rolling against the outer wall of the filter cylinder, and the pulleys are in two groups, and the two groups of pulleys are respectively supported at a low point and a high point of the filter cylinder.
[0015] By adopting the above technical solution, the filter cylinder rotates more steadily and rolls more smoothly through the support of the pulley.
[0016] Optionally, the reflux mechanism includes a reflux bin, a reflux pipe, a temporary storage bin and a nozzle which are connected in sequence, the reflux bin is connected to the bottom side of the filter frame, and the nozzle is connected to the nozzle mechanism.
[0017] By adopting the above technical solution, the filtration condition of the cold rolling machine oil can be observed by using the reflux bin, and the reflux pipe is then connected to the temporary storage bin, which can store a certain amount of cold rolling machine oil for retention and use.
[0018] Optionally, the reflux pipe includes a filter tube body and a bellows tube body, the filter tube body is flange-connected to the bellows tube body, and a plug is provided inside the filter tube body to hold a filter element.
[0019] By adopting the above technical solution, the reflux pipe is divided into two sections, and the filter tube body has a filter element, which is equivalent to further filtering the cold rolling machine oil. At the same time, the filter element can be replaced. The filter tube body can be removed by unscrewing the bolts on the flange. The corrugated tube body has the performance of bending and expansion, so it does not affect the disassembly and assembly of the filter tube body, and can also facilitate the placement of the temporary storage warehouse to different locations.
[0020] Optionally, the reflux device is comprised of two groups, one of which is located between the cutting device and the straightening device, and the other is located before the diameter expanding device.
[0021] By adopting the above technical solution, two sets of reflux devices are arranged to cover the front and rear positions of production, so that the cold rolling machine oil supply during the processing can be more comprehensive and timely, and the lubrication effect during processing is better.
[0022] In summary, this application includes the following beneficial technical effects:
[0023] 1. The refluxed cold rolling mill oil is filtered multiple times and then output to the surface of the billet and the top extension head, so that the cold rolling lubrication effect during the processing is better and the processing surface is smoother;
[0024] 2. The filtered debris and cold rolling mill oil are separated and processed in time, so that the reflux process can be circulated, reducing human intervention and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;
[0027] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application;
[0028] Figure 3 is a schematic diagram of the structure of a reflux device embodied in an embodiment of the present application;
[0029] Figure 4 This is a schematic diagram of the disassembled structure of the reflux device in the embodiment of the present application;
[0030] In the figure, 1. expansion device; 11. extension head; 12. upper roller; 13. lower roller; 2. straightening device; 3. cutting device; 4. reflux device; 41. receiving hopper; 42. filter frame; 421. pulley; 43. filter cylinder; 431. filter hole; 432. inner spiral plate; 433. residual material box; 44. reflux mechanism; 441. reflux bin; 442. reflux pipe; 4421. filter tube body; 4422. corrugated tube body; 443. temporary storage bin; 444. nozzle; 45. nozzle mechanism; 46. driving mechanism; 461. driving motor; 462. reduction box; 463. driving shaft; 464. rotating disk; 5. steel billet. DETAILED DESCRIPTION
[0031] The present application is further described in detail below in conjunction with all the accompanying drawings.
[0032] Embodiment: A surface cold rolling mill oil recovery machine for seamless stainless steel pipes, referring to Figure 1 and Figure 2 , including an expanding device 1, a straightening device 2 and a cutting device 3 which are arranged in sequence. The expanding device 1 includes a top extending head 11 for extending into the inner wall of the billet 5, an upper rolling roller 12 and a lower rolling roller 13 for contacting the outer wall of the billet 5.
[0033] refer to Figure 3 and Figure 4A reflux device 4 is provided between the cutting device 3 and the straightening device 2. The reflux device 4 includes a material receiving hopper 41 received at the lower side of the moving path of the top extension head 11, a filter frame 42 connected to the material receiving hopper 41, and a filter cylinder 43 connected to the filter frame 42. The filter cylinder 43 is provided with a filter hole 431. One side of the material receiving hopper 41 extends into the filter cylinder 43. The bottom wall of the filter frame 42 is connected to a reflux mechanism 44. The reflux mechanism 44 is connected to a nozzle mechanism 45 for spraying cold rolling mill oil on the steel billet 5 and the top extension head 11. The steel billet 5 will pass through the expansion device 1, the straightening device 2 and the cutting device 3. The expansion device 1 is used to expand the steel billet 5 as a whole, mainly relying on the top extension head 11, the upper roller 12 and the lower roller 13 to form a constrained space, so that the steel billet 5 can pass through and expand. The straightening device 2 is used to correct the direction of the steel billet 5 after the expansion, and at the same time make the expansion of the outer wall of the steel billet 5 within a certain range; the additional reflux device 4 can produce additional gain effects. During the cold rolling process, the cold rolling machine oil can fall into the receiving hopper 41, and the cold rolling machine oil on the receiving hopper 41 flows into the filter cylinder 43, and then passes through the filter cylinder 43. The filter cylinder 43 achieves a certain degree of filtration, and then returns to the nozzle mechanism 45 through the reflux mechanism 44. The nozzle mechanism 45 refills the cold rolling machine oil to the top extension head 11, so that the inner wall of the steel billet 5 can be lubricated. The nozzle mechanism 45 directly sprays the cold rolling machine oil on the outer wall of the steel billet 5, which can lubricate the outside and reduce the wear and tear of the expansion device 1 and the straightening device 2. The purpose of reflux and utilization of the cold rolling machine oil is achieved as a whole. In the process, it is filtered first and then output. For example, debris generated by cutting can be filtered into the filter cylinder 43, thereby improving the production quality of the inner and outer surfaces of the steel billet 5 as a whole.
[0034] refer to Figure 4The filter cylinder 43 is rotatably connected to the filter frame 42, and a driving mechanism 46 for driving the filter cylinder 43 to rotate is provided on the filter frame 42. The filter cylinder 43 can rotate continuously, so the debris particles can be driven to move during the rotation process to prevent large debris particles from blocking the filter holes 431, and also allow the cold rolling mill oil to pass through the filter holes 431 smoothly. The filter holes 431 of the filter cylinder 43 are arranged in an array along the axial outer side wall of the filter cylinder 43. The filter cylinder 43 is tilted with the side close to the receiving hopper 41 as the low point and the side away from the receiving hopper 41 as the high point. The inner wall of the filter cylinder 43 is connected to an inner spiral plate 432 that spirals upward, and a residual material box 433 is provided near the high point of the filter frame 42. It should be noted that multiple filtration can make the cold rolling machine oil cleaner, among which the filter cylinder 43 can achieve good filtration at different heights on the overall outer wall. Regardless of the high point or the low point, the filter hole 431 is retained to achieve the filtering function. Secondly, the inner spiral plate 432 in the filter cylinder 43 is used to drive the debris to move up repeatedly, so that the debris particles and other impurities are concentrated at the high point of the filter cylinder 43, and finally fall into the residual box 433, thereby facilitating the cleaning of the filter cylinder 43 and maintaining a good filtering ability.
[0035] Continue to refer Figure 4 The driving mechanism 46 includes a driving motor 461 and a reduction box 462 driven by the driving motor 461. The reduction box 462 is provided with a driving shaft 463. A rotating disk 464 is fixedly connected to the filter cylinder 43 for connecting and driving the driving shaft 463. The driving motor 461 first drives the reduction box 462, and the reduction box 462 then drives the driving shaft 463, thereby reducing speed and increasing torque, thereby improving the torsional force of the driving shaft 463. The rotating disk 464 is connected to the filter cylinder 43 from multiple points, so that the filter cylinder 43 can be evenly stressed and rotate smoothly when rotating. The filter frame 42 is provided with a plurality of pulleys 421 for the outer wall of the filter cylinder 43 to roll against. The pulleys 421 are in two groups, and the two groups of pulleys 421 are supported at the low point and the high point of the filter cylinder 43 respectively. The filter cylinder 43 rotates more steadily and rolls more smoothly through the support of the pulleys 421.
[0036] refer to Figure 3The reflux mechanism 44 includes a reflux bin 441, a reflux pipe 442, a temporary storage bin 443 and a nozzle 444 which are connected in sequence. The reflux bin 441 is connected to the bottom side of the filter frame 42, and the nozzle 444 is connected to the nozzle mechanism 45. The reflux bin 441 can be used to observe the filtering condition of the cold rolling oil, and the reflux pipe 442 is connected to the temporary storage bin 443, which can store a certain amount of cold rolling oil for retention and use. The reflux pipe 442 includes a filter tube body 4421 and a bellows body 4422. The filter tube body 4421 is flange-connected to the bellows body 4422, and a plug is provided in the filter tube body 4421 to install a filter element. The return pipe 442 is divided into two sections, and the filter tube body 4421 has a filter element, so it is equivalent to further filtering the cold rolling machine oil. At the same time, the filter element can be replaced. You only need to unscrew the bolts on the flange to remove the filter tube body 4421. The corrugated tube body 4422 has the ability to bend and expand, so it does not affect the disassembly and assembly of the filter tube body 4421, and can also facilitate the placement of the temporary storage bin 443 to different locations.
[0037] refer to Figure 1 and Figure 2 There are two groups of reflux devices 4, one of which is located between the cutting device 3 and the straightening device 2, and the other is located before the diameter expansion device 1. Two groups of reflux devices 4 are arranged to cover the front and rear positions of the production, so that the cold rolling mill oil supply during the processing can be more comprehensive and timely, so that the lubrication effect during the processing is better.
[0038] Unless otherwise defined, technical or scientific terms used in this application should have the common meanings understood by persons having ordinary skills in the field to which this application belongs.
[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A surface cold rolling mill oil recovery machine for seamless stainless steel pipes, comprising a diameter expansion device (1), a straightening device (2) and a cutting device (3) arranged in sequence, wherein the diameter expansion device (1) comprises a top extension head (11) for extending into the inner wall of a steel billet (5), an upper roller (12) and a lower roller (13) for contacting the outer wall of the steel billet (5), characterized in that: A reflux device (4) is provided between the cutting device (3) and the straightening device (2), the reflux device (4) comprising a receiving hopper (41) received at the lower side of the moving path of the top extension head (11), a filter frame (42) connected to the receiving hopper (41), and a filter cylinder (43) connected to the filter frame (42), wherein the filter cylinder (43) is provided with a filter hole (431), one side of the receiving hopper (41) extends into the filter cylinder (43), the bottom wall of the filter frame (42) is connected to a reflux mechanism (44), and the reflux mechanism (44) is connected to a nozzle mechanism (45) for spraying cold rolling mill oil on the steel billet (5) and the top extension head (11).
2. The surface cold rolling mill oil recovery machine for seamless stainless steel pipe according to claim 1, characterized in that: The filter cylinder (43) is rotatably connected to the filter frame (42), and a driving mechanism (46) for driving the filter cylinder (43) to rotate is provided on the filter frame (42).
3. The surface cold rolling mill oil recovery machine for seamless stainless steel pipe according to claim 2, characterized in that: The filter holes (431) of the filter cylinder (43) are arranged in an array along the axial outer side wall of the filter cylinder (43); the filter cylinder (43) is tilted with the side close to the receiving hopper (41) as the low point and the side away from the receiving hopper (41) as the high point; the inner wall of the filter cylinder (43) is connected to an inner spiral plate (432) that spirals upward; and a residual material box (433) is provided on the filter frame (42) near the high point.
4. The surface cold rolling mill oil recovery machine for seamless stainless steel pipe according to claim 3, characterized in that: The driving mechanism (46) comprises a driving motor (461) and a reduction box (462) driven by the driving motor (461); the reduction box (462) is provided with a driving shaft (463); and a rotating disk (464) connected to and driven by the driving shaft (463) to rotate is fixedly connected to the filter cylinder (43).
5. The surface cold rolling mill oil recovery machine for seamless stainless steel pipe according to claim 3, characterized in that: The filter frame (42) is provided with a plurality of pulleys (421) for rolling against the outer wall of the filter cylinder (43), and the pulleys (421) are in two groups, and the two groups of pulleys (421) are respectively supported at a low point and a high point of the filter cylinder (43).
6. The surface cold rolling mill oil recovery machine for seamless stainless steel pipe according to claim 1, characterized in that: The reflux mechanism (44) comprises a reflux bin (441), a reflux pipe (442), a temporary storage bin (443) and a nozzle (444) which are connected in sequence; the reflux bin (441) is connected to the bottom side of the filter frame (42); and the nozzle (444) is connected to the nozzle mechanism (45).
7. The surface cold rolling mill oil recovery machine for seamless stainless steel pipe according to claim 6, characterized in that: The return pipe (442) comprises a filter tube body (4421) and a bellows tube body (4422); the filter tube body (4421) is flange-connected to the bellows tube body (4422); a plug is provided inside the filter tube body (4421) to hold a filter element.
8. The surface cold rolling mill oil recovery machine for seamless stainless steel pipe according to claim 1, characterized in that: The reflux device (4) is composed of two groups, one of which is located between the cutting device (3) and the straightening device (2), and the other is located before the diameter expanding device (1).