A high-efficiency cold rolling equipment for steel pipes that can shorten working time

Abstract

This invention relates to the field of cold rolling equipment technology, specifically to a high-efficiency cold rolling equipment for steel pipes that can shorten working time. It includes a worktable, a beveling assembly and a cold rolling assembly mounted on the worktable. The beveling assembly is used to bevele the end face of the steel pipe, and the cold rolling assembly is used to roll the steel pipe to the required size. The beveling assembly includes a support frame, a movable seat, a cutting assembly, and a rotating assembly. The support frame is mounted on the worktable; the movable seat is slidably mounted on the support frame; the cutting assembly is mounted on the rotating assembly and is used to cut the end face of the steel pipe; the rotating assembly is located inside the movable seat and is used to control the rotation of the cutting assembly; a first linear mechanism is also provided inside the support frame, passing through the movable seat and controlling the horizontal linear movement of the movable seat within the support frame. This invention can control the beveling assembly to move synchronously with the steel pipe, thereby avoiding collisions between the steel pipe and the beveling assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cold rolling equipment, in particular to a high-efficiency steel pipe cold rolling equipment capable of shortening working hours. BACKGROUND

[0002] In actual use, steel pipes are usually connected with other steel pipes by welding or flanges. In order to facilitate the welding of different steel pipes, a groove is usually machined at the end of the steel pipe. In the related art, a groove is additionally machined at the end of the steel pipe during actual construction, which increases the machining time of the steel pipe and reduces the machining efficiency of the steel pipe, and thus needs to be improved.

[0003] Chinese Patent Application CN116900056A discloses a seamless stainless steel pipe, a cold rolling device and a cold rolling process. The device includes a rack, a cold rolling roller assembly arranged on the rack, and a conveying mechanism arranged on the rack. The cold rolling roller assembly is used to roll the stainless steel pipe into a required cross-sectional size. The conveying mechanism is used to push the stainless steel pipe towards the cold rolling roller assembly. The rack is provided with a groove machining assembly. The groove machining assembly is used to machine a groove at the end of the stainless steel pipe. When the stainless steel pipe enters the groove machining assembly, part of the stainless steel pipe is located in the cold rolling roller assembly. Thus, the groove of the stainless steel pipe can be machined while the stainless steel pipe is cold rolled, which is beneficial to improving the machining efficiency of the stainless steel pipe.

[0004] In the above device, the equipment for machining the groove of the end surface of the steel pipe does not move horizontally. Therefore, the required movement amount in the cutting process is only achieved by the horizontal movement of the steel pipe. However, in general production, the movement speed of the steel pipe is relatively fast in order to improve the production efficiency and reduce the cost. Therefore, the groove equipment in the above device is prone to collision with the steel pipe, which may cause damage to the equipment. In addition, the device for rolling forming in the above device is fixed. Therefore, in the process of cold rolling production, the production efficiency is easily reduced, and the quality of the steel pipe is easily reduced. SUMMARY

[0005] In view of the above problems, the present application provides a high-efficiency steel pipe cold rolling equipment capable of shortening working hours. The first linear mechanism drives the moving seat to move horizontally. Therefore, when the steel pipe enters the inside of the groove assembly, the collision between the steel pipe and the groove assembly can be avoided, and the damage to the equipment can be prevented.

[0006] To solve the prior art problems, the application provides a steel pipe high-efficiency cold rolling equipment capable of shortening working hours, which comprises a workbench, a beveling assembly arranged on the workbench and a cold rolling assembly, the beveling assembly is used for beveling the end face of the steel pipe, and the cold rolling assembly is used for rolling the steel pipe into a required size; the beveling assembly comprises a support frame, a moving seat, a cutting assembly and a rotating assembly; the support frame is arranged on the workbench; the moving seat is slidingly arranged on the support frame; the cutting assembly is arranged on the rotating assembly and is used for cutting the end face of the steel pipe; the rotating assembly is arranged in the moving seat and is used for controlling the cutting assembly to rotate; a first linear mechanism is further arranged in the support frame, the first linear mechanism penetrates through the moving seat and is used for controlling the moving seat to move horizontally and linearly in the support frame.

[0007] Preferably, the rotating assembly comprises a rotating ring, a first gear and a first motor; the rotating ring has two and is arranged in parallel in the moving seat; a gear ring is arranged on the outer peripheral wall of the rotating ring; the cutting assembly is between the two rotating rings; the first gear is in the moving seat and above the rotating ring, and the first gear is in mesh with the outer peripheral wall of the rotating ring; the first motor is arranged on the outside of the moving seat and is in transmission connection with the first gear.

[0008] Preferably, the cutting assembly comprises a cutter and a second linear mechanism; the cutter is on the inner end face of the rotating ring and the cutter head of the cutter points to the center point of the rotating ring; the second linear mechanism is arranged on the inner end face of the rotating ring and is fixedly connected with the cutter, so as to control the cutter to approach or move away from the center point of the rotating ring.

[0009] Preferably, the cold rolling assembly comprises a cold rolling chamber and a plurality of cold rolling roller assemblies; all the cold rolling roller assemblies are linearly and spacedly arranged in the cold rolling chamber from the first end of the workbench to the tail end of the workbench; the cold rolling roller assembly comprises a pressure roller assembly and an adjusting assembly; the pressure roller assembly is arranged in the adjusting assembly and is used for rolling the billet sent into the cold rolling chamber into a required size; the adjusting assembly is connected with the inner side wall of the cold rolling chamber and is used for adjusting the angle between the pressure roller assembly and the horizontal plane.

[0010] Preferably, the pressure roller assembly comprises an upper roller, a lower roller and a mounting plate; the mounting plate has two and is parallel to each other on both sides of the steel pipe; the upper roller and the lower roller are between the two mounting plates and are rotationally connected with the inner side wall of the mounting plate.

[0011] Preferably, the inner side of the mounting plate is slidingly provided with two sliding blocks, and the two ends of the upper roller and the lower roller are respectively rotationally connected with the sliding blocks; the inner side of the mounting plate is provided with a third linear mechanism penetrating through the two sliding blocks and used for the two sliding blocks to approach or move away from each other.

[0012] Preferably, the adjusting assembly comprises a ring gear, a connecting base, a first mounting base, a first rotating base and a locking mechanism; the ring gear is inside the cold rolling chamber and the outer peripheral wall of the ring gear is fixedly connected with the inner side wall of the cold rolling chamber; the connecting bases are arranged at the top end and the bottom end of the mounting plate respectively and are outside the mounting plate, the connecting bases at the same end of the two mounting plates are fixedly connected through the first mounting base; the first rotating base is between the first mounting base and the ring gear and is slidably connected with the first mounting base, the outer side of the first rotating base is provided with a second gear which is in mesh with the inner peripheral wall of the ring gear; the locking mechanism is arranged between the first mounting base and the first rotating base and is used for fixing the distance between the first mounting base and the first rotating base.

[0013] Preferably, the outer side of the mounting plate is provided with a supporting assembly, the supporting assembly comprises a second mounting base, a second rotating base and an elastic assembly; the second mounting base is arranged outside the mounting plate and is slidably connected with the second rotating base, the elastic assembly is arranged between the second mounting base and the second rotating base and is used for driving the second rotating base to move away from the second mounting base; the outer side of the second rotating base is provided with a second gear ring which is in mesh with the ring gear.

[0014] Preferably, the top end of the second mounting base is provided with a limiting buckle; the limiting buckle is rotatably connected with the top end of the second mounting base, the bottom end of the limiting buckle is provided with a first boss which is inserted into the inside of the second rotating base, so as to avoid that the second rotating base is completely separated from the inside of the second mounting base.

[0015] Preferably, the two sides of the ring gear are respectively provided with ring-shaped embedded grooves; the two sides of the first rotating base and the second rotating base are respectively provided with limiting plates; the limiting plates are inserted into the embedded grooves and abut against the inner peripheral wall of the embedded grooves.

[0016] The beneficial effects of the present application compared with the prior art are:

[0017] 1、The first linear mechanism drives the moving base to move horizontally, so that the steel pipe can avoid colliding with the beveling assembly when the steel pipe enters the inside of the beveling assembly, thereby preventing the equipment from being damaged.

[0018] 2、The moving base can move synchronously while the steel pipe moves linearly, and the cutting assembly in the moving base can complete the corresponding beveling work while moving, so that the horizontal movement of the steel pipe can be stopped to complete the corresponding beveling processing, thereby improving the work efficiency, and the steel pipe is beveled immediately after being rolled by the cold rolling assembly, thereby saving time.

[0019] 3. This invention uses multiple sets of cold rolling rolls with different angles to roll the steel pipe, thereby ensuring that the final formed steel pipe has high precision and guarantees the quality and performance of the steel pipe.

[0020] 4. The pressure roller assembly of the present invention is set inside the annular gear ring by an adjusting component, and under the mutual meshing of the second gear and the annular gear ring, the angle of the pressure roller assembly can be freely adjusted until the pressure roller assembly is adjusted to a suitable angle for cold rolling. The angle of the pressure roller assembly can be freely adjusted, and it can also be used to produce steel pipes with different requirements, thereby improving the applicability of the cold rolling equipment. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a high-efficiency cold rolling equipment for steel pipes that can shorten working time.

[0022] Figure 2 This is a three-dimensional schematic diagram of the beveling component in a high-efficiency cold rolling equipment for steel pipes that can shorten working time.

[0023] Figure 3 This is a three-dimensional sectional view of the beveling component in a high-efficiency cold rolling equipment for steel pipes that can shorten working time.

[0024] Figure 4 This is a schematic diagram of the cutting components in a high-efficiency cold rolling mill for steel pipes that can shorten working hours.

[0025] Figure 5 This is a three-dimensional schematic diagram of a cold rolling component in a high-efficiency cold rolling equipment for steel pipes that can shorten working time.

[0026] Figure 6 This is a structural cross-sectional view of the cold rolling chamber in a high-efficiency cold rolling equipment for steel pipes that can shorten working time.

[0027] Figure 7 This is a three-dimensional schematic diagram of the cold rolling roll assembly in a high-efficiency cold rolling equipment for steel pipes that can shorten working time.

[0028] Figure 8 This is a front view of the cold rolling roll assembly in a high-efficiency cold rolling equipment for steel pipes, which can shorten working time.

[0029] Figure 9 This is a three-dimensional schematic diagram of the pressure roller assembly in a high-efficiency cold rolling equipment for steel pipes that can shorten working hours.

[0030] Figure 10 This is a three-dimensional schematic diagram of a support component in a high-efficiency cold rolling equipment for steel pipes that can shorten working hours.

[0031] Figure 11 This is a partial sectional view of the use of a limiting buckle in a high-efficiency cold rolling equipment for steel pipes, which can shorten working time.

[0032] Figure 12 This is a structural diagram of a high-efficiency cold rolling mill for steel pipes, used when a limiting buckle is in use.

[0033] The diagram is labeled as follows: 1. Workbench; 2. Beveling assembly; 21. Support frame; 22. Moving seat; 23. Cutting assembly; 231. Cutting blade; 232. Second linear mechanism; 24. Rotating assembly; 241. First motor; 242. First gear; 243. Rotating ring; 25. First linear mechanism; 3. Cold rolling assembly; 31. Cold rolling chamber; 32. Cold rolling roll assembly; 321. Pressure roll assembly; 3211. Upper roll; 3212. Lower roll. Roller; 3213, Mounting plate; 3214, Third linear mechanism; 322, Adjusting component; 3221, Ring gear; 3222, Connecting seat; 3223, First mounting seat; 3224, First rotating seat; 3225, Second gear; 3226, Locking mechanism; 323, Support component; 3231, Second mounting seat; 3232, Second rotating seat; 3233, Elastic component; 324, Restricting buckle; 325, Limiting plate. Detailed Implementation

[0034] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0035] Reference Figure 1 — Figure 3 As shown, the present invention provides: a high-efficiency cold rolling equipment for steel pipes that can shorten working time, including a worktable 1, a beveling assembly 2 and a cold rolling assembly 3 disposed on the worktable 1, the beveling assembly 2 being used to bevele the end face of the steel pipe, and the cold rolling assembly 3 being used to roll the steel pipe to the required size; the beveling assembly 2 includes a support frame 21, a movable seat 22, a cutting assembly 23 and a rotating assembly 24; the support frame 21 is disposed on the worktable 1; the movable seat 22 is slidably disposed on the support frame 21; the cutting assembly 23 is disposed on the rotating assembly 24 and is used to cut the end face of the steel pipe, the rotating assembly 24 is disposed inside the movable seat 22 and is used to control the rotation of the cutting assembly 23; the support frame 21 is also provided with a first linear mechanism 25, the first linear mechanism 25 passing through the movable seat 22 and being used to control the movable seat 22 to move horizontally linearly inside the support frame 21.

[0036] The workbench 1 has a working direction from the first end to the last end. The beveling assembly 2 and the cold rolling assembly 3 are arranged sequentially on the workbench 1 along the working direction, with the cold rolling assembly 3 located closer to the first end of the workbench 1. After the steel billet to be rolled is fed into the cold rolling assembly 3, the cold rolling assembly 3 first rolls the steel billet into the required steel pipe size. Then, the steel pipe moves from inside the cold rolling assembly 3 towards the last end of the workbench 1. At this time, the end face of the steel pipe is fed into the beveling assembly 2 and simultaneously inserted into the moving seat 22. At this time, the rotating assembly 24 and the first linear mechanism 25 start working simultaneously. In operation, the rotating assembly 24 drives the cutting assembly 23 to cut the end face of the steel pipe, thereby completing the beveling work on the end face of the steel pipe. Simultaneously, to improve work efficiency, the steel pipe moves linearly continuously during cold rolling. Therefore, when the cutting assembly 23 beveles the steel pipe, the end face of the steel pipe continuously moves towards the tail end of the worktable 1. Thus, a first linear mechanism 25 is provided to drive the moving seat 22 to move horizontally linearly. So, when the cutting assembly 23 cuts the end face of the steel pipe, the moving seat 22, under the control of the first linear mechanism 25, drives the cutting assembly... 23 moves synchronously to perform beveling on the end face of the steel pipe without hindering its movement, thereby improving overall work efficiency. The first linear mechanism 25 includes a drive motor and a first lead screw. The drive motor is located outside the support frame 21, while the first lead screw is located inside the support frame 21 with its axis parallel to the working direction. One end of the first lead screw passes through the inner wall of the support frame 21 and is connected to the drive motor for transmission. The other end of the first lead screw passes through the movable seat 22 and is rotatably connected to the inner wall of the other side of the support frame 21. Simultaneously, the first lead screw... The movable seat 22 is threaded, so that when the steel pipe is inserted into the movable seat 22 and cut by the cutting component 23, the drive motor can control the movable seat 22 to move horizontally by driving the first lead screw to rotate. At the same time, multiple guide rods can be set inside the support frame 21, which pass through and are clearance-fitted with the movable seat 22, so as to ensure that the movable seat 22 can move smoothly along the moving direction of the steel pipe. The first linear mechanism 25 drives the movable seat 22 to move at a speed slightly lower than the moving speed of the steel pipe, so as to ensure that the cutting component 23 can complete the beveling work on the end face of the steel pipe.

[0037] Reference Figure 3As shown: The rotating assembly 24 includes a rotating ring 243, a first gear 242, and a first motor 241; two rotating rings 243 are arranged parallel to each other inside the movable seat 22, and the outer peripheral wall of the rotating ring 243 is provided with a toothed ring; the cutting assembly 23 is located between the two rotating rings 243; the first gear 242 is located inside the movable seat 22 and above the rotating rings 243, and the first gear 242 meshes with the outer peripheral wall of the rotating rings 243; the first motor 241 is located outside the movable seat 22 and is connected to the first gear 242 for transmission.

[0038] Two rotating rings 243 are provided, clamping the cutting assembly 23 in the middle. The two rotating rings 243 are fixedly connected by a connecting rod, allowing them to rotate synchronously and increasing structural stability. Each rotating ring 243 is rotatably connected to the inner wall of the moving base 22, and a through hole for the steel pipe to pass through is provided at the center of each ring 243. After the steel pipe is rolled by the cold rolling assembly 3 and fed into the moving base 22, the end face of the steel pipe first moves between the two rotating rings 243. Then, the first motor 241 controls the first gear 242 to rotate, thereby driving the two rotating rings 243 to rotate, thus... The cutting assembly 23 rotates synchronously to complete the beveling work on the end face of the steel pipe. Since there is one first gear 242 and two rotating rings 243, the first gear 242 can mesh with only one of the rotating rings 243, while the other rotating ring 243 rotates synchronously through a fixed connection with a connecting rod. This reduces the need for a large axial dimension of the first gear 242, thus saving manufacturing costs. At the same time, the axial length of the first gear 242 can be equal to the distance between the outer end faces of the two rotating rings 243, allowing the first gear 242 to mesh with both rotating rings 243 simultaneously, thereby ensuring that the two rotating rings 243 can stably drive the cutting assembly 23 to rotate.

[0039] Reference Figure 4 As shown: The cutting assembly 23 includes a cutter 231 and a second linear mechanism 232; the cutter 231 is located on the inner end face of the rotating ring 243 and the cutting tip of the cutter 231 points to the center point of the rotating ring 243; the second linear mechanism 232 is disposed on the inner end face of the rotating ring 243 and is fixedly connected to the cutter 231, thereby enabling the cutter 231 to move closer to or further away from the center point of the rotating ring 243.

[0040] The cutter 231 is slidably mounted on the inner end face of a rotating ring 243, while the second linear mechanism 232 is mounted on the inner end face of another rotating ring 243. The second linear mechanism 232 can be a linear drive device such as a cylinder, electric cylinder, or lead screw slide. When not cutting, the second linear mechanism 232 controls the cutter 231 to move away from the center point of the rotating ring 243, thus avoiding interference between the cutter 231 and the outer peripheral wall of the steel pipe. When the end face of the steel pipe moves between the two rotating rings 243, the first linear mechanism 25 first drives the moving seat 22 to move synchronously, while the second linear mechanism 232 begins to drive the cutter 231 closer to the end face of the steel pipe until the cutter 231 reaches a predetermined position. Then, the first motor 241 starts to control the rotating ring 243 to rotate, so that the cutter 231 can cut the end face of the steel pipe to complete the beveling process. After the end face of the steel pipe is beveling, the first linear mechanism 25 starts to increase the moving speed of the moving seat 22, so that the cutter 231 starts to move away from the steel pipe. Then, the second linear mechanism 232 starts to drive the cutter head of the cutter 231 away from the center point of the rotating ring 243, so that the steel pipe can pass through the moving seat 22 and move towards the tail end of the worktable 1. When the cutter head of the cutter 231 is completely away from the center point of the rotating ring 243, the first linear mechanism 25 starts to control the moving seat 22 to return to the initial position, so as to wait for the next rolled steel pipe to beveling.

[0041] Reference Figure 5 — Figure 7 As shown: The cold rolling assembly 3 includes a cold rolling chamber 31 and several cold rolling roll assemblies 32; all the cold rolling roll assemblies 32 are linearly spaced from the first end of the worktable 1 to the last end of the worktable 1 inside the cold rolling chamber 31; the cold rolling roll assembly 32 includes a pressure roll assembly 321 and an adjusting assembly 322; the pressure roll assembly 321 is disposed inside the adjusting assembly 322 and is used to roll the steel billet fed into the cold rolling chamber 31 into the required size; the adjusting assembly 322 is connected to the inner wall of the cold rolling chamber 31 and is used to adjust the angle between the pressure roll assembly 321 and the horizontal plane.

[0042] The top of the workbench 1 is equipped with a U-shaped support slide rail, which consists of two parallel vertical plates and a horizontal plate at the bottom connecting the two vertical plates. The bottom of the cold rolling chamber 31 is slidably connected to the top of the horizontal plate, and rolling gears are respectively provided on both sides of the cold rolling chamber 31. The top of the vertical plate is equipped with a rack that meshes with the rolling gears. At the same time, an eccentric wheel assembly and a drive motor for driving the eccentric wheel assembly are provided on the support slide rail away from the front end of the workbench 1. The eccentric wheel assembly is connected to both sides of the cold rolling chamber 31 through a swing arm, so that when the eccentric wheel rotates, the cold rolling chamber 31 can reciprocate horizontally along the working direction. With the cooperation of the rolling gears and racks on both sides of the cold rolling chamber 31, the cold rolling chamber 31 can move horizontally precisely along the working direction. At the same time, the cold rolling chamber 31 needs to perform high-speed reciprocating motion, and the rolling gears and racks can also withstand high loads and ensure... The cold rolling chamber 31 can move smoothly. Inside the cold rolling chamber 31 are several cold rolling roll assemblies 32, all of which are spaced apart along the working direction. Each cold rolling roll assembly 32 has a different angle with the horizontal plane, while the angle between any two cold rolling rolls is the same. This allows the multiple cold rolling roll assemblies 32 to apply multi-angle forces evenly to the steel billet, resulting in a smaller roundness error in the final rolled steel pipe, thus ensuring the accuracy of the formed steel pipe. The pressure roll assembly 321 is located inside the adjustment assembly 322 and its angle with the horizontal plane can be adjusted by the adjustment assembly 322. This allows the angle of the pressure roll assembly 321 to be adjusted according to the desired shape, thereby improving the applicability of the cold rolling equipment. The top of the cold rolling chamber 31 is equipped with an openable maintenance door, allowing for maintenance and repair of the cold rolling roll assemblies 32 inside the cold rolling chamber 31, ensuring stable cold rolling operation of the cold rolling equipment.

[0043] Reference Figure 9 As shown: The pressure roller assembly 321 includes an upper roller 3211, a lower roller 3212 and a mounting plate 3213; there are two mounting plates 3213 that are parallel to each other and located on both sides of the steel pipe; the upper roller 3211 and the lower roller 3212 are located between the two mounting plates 3213 and are rotatably connected to the inner sidewall of the mounting plate 3213.

[0044] The upper roll 3211 and the lower roll 3212 are located between two mounting plates 3213 and are rotatably connected to the mounting plates 3213 respectively. When the steel billet enters the cold rolling chamber 31, the steel billet is located between the upper roll 3211 and the lower roll 3212. As the steel billet moves continuously and the cold rolling chamber 31 reciprocates continuously, the upper roll 3211 and the lower roll 3212 can squeeze the steel billet into the required steel pipe size. Then, under the extrusion of multiple pressure roller assemblies 321 at different angles, the finally rolled steel pipe has a high degree of roundness, thus ensuring that the produced steel pipe meets the requirements.

[0045] Reference Figure 9 As shown: Two sliders are slidably provided on the inner side of the mounting plate 3213, and the two ends of the upper roller 3211 and the lower roller 3212 are respectively rotatably connected to the sliders; a third linear mechanism 3214 is provided on the inner side of the mounting plate 3213, which passes through the two sliders and is used for the two sliders to move closer or further apart.

[0046] The third linear mechanism 3214 may include a second lead screw and mounting blocks. Two mounting blocks are respectively disposed at the top and bottom of the mounting plate 3213. The second lead screw is positioned between the two mounting blocks and passes through two sliders, and is threadedly connected to the sliders. This allows the two sliders to move closer or further apart along the axial direction of the second lead screw when it rotates, thereby adjusting the distance between the upper roll 3211 and the lower roll 3212. This enables the rolling of steel concretions of different diameters, improving the applicability of the cold rolling equipment. The bottom end of the second lead screw is rotatably connected to the mounting block at the bottom of the mounting frame after passing between the two sliders. The top end of the second lead screw extends upwards through the mounting block at the top of the mounting frame and is positioned at the top of the mounting block. The top end of the second lead screw is also equipped with a convenient working surface. The connecting structure, such as a triangular prism or hexagonal prism, is rotated by the operator using tools to facilitate the rotation of the second lead screw, thereby adjusting the distance between the upper roll 3211 and the lower roll 3212. Since the top of the cold rolling chamber 31 is an openable maintenance door, when maintaining and repairing the cold rolling roll assembly 32 inside the cold rolling chamber 31, the operator can maintain the cold rolling roll assembly 32 from above and rotate the second lead screw from above. To ensure convenient rotation of the second lead screw, when setting cold rolling roll assemblies 32 at multiple angles, the connecting structure of the second lead screw should be located at the top, or connecting structures can be provided at both ends of the second lead screw, thus facilitating the adjustment of the distance between the upper roll 3211 and the lower roll 3212.

[0047] Reference Figure 8As shown: The adjusting assembly 322 includes an annular gear ring 3221, a connecting seat 3222, a first mounting seat 3223, a first rotating seat 3224, and a locking mechanism 3226; the annular gear ring 3221 is located inside the cold rolling chamber 31, and its outer peripheral wall is fixedly connected to the inner wall of the cold rolling chamber 31; the connecting seats 3222 are respectively disposed at the top and bottom ends of the mounting plate 3213 and are located on the outside of the mounting plate 3213, between the connecting seats 3222 at the same end of the two mounting plates 3213. The first mounting base 3223 provides a fixed connection; the first rotating base 3224 is located between the first mounting base 3223 and the annular gear ring 3221 and is slidably connected to the first mounting base 3223; the outer side of the first rotating base 3224 is provided with a second gear 3225 that meshes with the inner peripheral wall of the annular gear ring 3221; the locking mechanism 3226 is located between the first mounting base 3223 and the first rotating base 3224 and is used to fix the distance between the first mounting base 3223 and the first rotating base 3224.

[0048] Two mounting plates 3213 are detachably mounted with connecting seats 3222 at their top and bottom ends, respectively. The connecting seats 3222 are located on the outer side of the mounting plates 3213. A first mounting seat 3223 is provided between the connecting seats 3222 at the same end of the two mounting plates 3213. The first mounting seat 3223 is fixedly connected to both connecting seats 3222, thereby fixing the distance between the two mounting plates 3213. Under the constraint of the two first mounting seats 3223 at the top and bottom ends, the two mounting plates 3213 can stably support the upper roll 3211 and the lower roll 3212. A first rotating seat 3224 is provided between the first mounting seat 3223 and the annular gear ring 3221. The end of the first rotating seat 3224 away from the annular gear ring 3221 has a first protrusion plate passing through the first mounting seat 3223. The first protrusion plate is slidably connected to the first mounting seat 3223, thereby allowing... Guided by the first convex plate, the first rotating seat 3224 can gradually approach or move away from the inner peripheral wall of the annular gear ring 3221, thereby allowing the second gear 3225 to mesh with the inner peripheral wall of the annular gear ring 3221. When the pressure roller assembly 321 is placed in the middle of the annular gear ring 3221, it begins to drive the first rotating seat 3224 to move, and gradually approaches the inner peripheral wall of the annular gear ring 3221 under the guidance of the first convex plate. When the second gear 3225 on the first rotating seat 3224 meshes with the inner peripheral wall of the annular gear ring 3221, the distance between the first rotating seat 3224 and the first mounting seat 3223 is fixed by the locking mechanism 3226. The two sets of first rotating seats 3224 and first mounting seats 3223 can restrict the pressure roller assembly 321 at the center of the annular gear ring 3221, thus completing the installation of the pressure roller assembly 321, after which the corresponding cold rolling work can be carried out.The locking mechanism 3226 may include a first through hole, a second through hole, a first bolt, and a first nut. The first through hole has several holes spaced apart on the first protruding plate. The second through hole is located on the first mounting base 3223. When the first rotating seat 3224 meshes with the ring gear 3221 via the second gear 3225, one of the first through holes on the first protruding plate communicates with the second through hole on the first mounting base 3223. The first bolt can then pass through the first and second through holes. Subsequently, the threaded connection between the first bolt and the first nut locks the relative distance between the first mounting base 3223 and the first rotating seat 3224. To ensure the pressure roller assembly 321 is centered on the annular gear ring 3221, the first rotating seat 3224 meshes with the inner circumferential wall of the annular gear ring 3221 via the second gear 3225, allowing the pressure roller assembly 321 to rotate around the inner circumferential wall of the annular gear ring 3221, thereby adjusting the angle of the pressure roller assembly 321. To achieve this, a pin is provided on the upper part of one of the first mounting seats 3223 to restrict the rotation of the second gear 3225. After the pressure roller assembly 321 is adjusted to a predetermined angle, the pin restricts the rotation of the second gear 3225, thus limiting the pressure roller assembly 321 to the current angle.

[0049] Reference Figure 8 and Figure 10 As shown: A support assembly 323 is provided on the outer side of the mounting plate 3213. The support assembly 323 includes a second mounting seat 3231, a second rotating seat 3232, and an elastic component 3233. The second mounting seat 3231 is disposed on the outer side of the mounting plate 3213 and is slidably connected to the second rotating seat 3232. An elastic component 3233 is provided between the second mounting seat 3231 and the second rotating seat 3232 to drive the second rotating seat 3232 away from the second mounting seat 3231. A second toothed ring is provided on the outer side of the second rotating seat 3232 to mesh with the annular toothed ring 3221.

[0050] Each mounting plate 3213 has a support assembly 323 on its outer side. A second mounting seat 3231 in the support assembly 323 is fixedly connected to the outer side of the mounting plate 3213. Simultaneously, a second protruding plate is provided at one end of the second rotating seat 3232 near the second mounting seat 3231. The second protruding plate is inserted into and slidably connected to the second mounting seat 3231, allowing the distance between the second mounting seat 3231 and the second rotating seat 3232 to be adjusted, similar to the distance between the first mounting seat 3223 and the first rotating seat 3224. However, an elastic assembly 3233 is provided between the second mounting seat 3231 and the second rotating seat 3232, and this elastic assembly 3233 is used to drive the second rotating seat 3232 away from the second mounting seat 3231. This ensures that the second rotating seat 3232 always abuts the second gear 3225 against the inner circumferential wall of the ring gear 3221, thereby ensuring that the second gear 3225 is always... The elastic component 3233, which meshes with the annular gear ring 3221, may include a guide shaft and a compression spring. The second mounting base 3231 has first side plates on both sides, and the second protruding plate inserted into the second mounting base 3231 has second side plates on both sides. The second side plates extend from the inside of the second mounting base 3231 to its outside. The guide shaft is located between the first and second side plates. One end of the guide shaft is fixedly connected to the first side plate, and the other end passes through the second side plate and is clearance-fitted with it. The compression spring is sleeved on the guide shaft and located between the first and second side plates. Under the action of the compression spring, the second rotating seat 3232 is always subjected to a force away from the second mounting plate 3213, thereby ensuring that the second gear 3225 on the second rotating seat 3232 always abuts against the inner circumferential wall of the annular gear ring 3221, thus providing auxiliary support for the pressure roller assembly 321.

[0051] Reference Figure 11 and Figure 12 As shown: The top end of the second mounting base 3231 is provided with a limiting buckle 324; the limiting buckle 324 is rotatably connected to the top end of the second mounting base 3231, and the bottom end of the limiting buckle 324 is provided with a first protrusion that inserts into the interior of the second rotating seat 3232, so as to prevent the second rotating seat 3232 from completely detaching from the interior of the second mounting base 3231.

[0052] The second protruding plate has a groove at its top end. Inside the groove, at the end furthest from the annular toothed ring 3221, is a second protrusion. The first protrusion at the bottom of the limiting buckle 324 can be inserted into the groove. Thus, after the limiting buckle 324 is fixed to the top of the second mounting base 3231, when the second rotating seat 3232 continues to move away from the second mounting base 3231, the first protrusion moves inside the groove until it abuts against the second protrusion. This prevents the second rotating seat 3232 from moving further away from the second mounting base 3231, thus preventing it from detaching from the second mounting base 3231 under the action of the elastic component 3233. The limiting buckle 324 has a rotating rod at its top end, extending from the top to the bottom of the limiting buckle 324. The bottom circumference of the device has two side wings. When the side wings are completely at the bottom of the limiting buckle 324, the limiting buckle 324 can rotate with the second mounting base 3231, so that the second rotating base 3232 can be pulled out from or inserted into the second mounting base 3231. When it is necessary to restrict the second rotating base 3232, the limiting buckle 324 is first rotated downward so that the top of the limiting buckle 324 is on the same plane as the top of the second mounting base 3231. Then, the rotating rod is rotated so that the side wings are rotated to a state where they simultaneously abut against the top of the inner cavity of the second mounting base 3231 and the bottom of the limiting buckle 324, so that the limiting buckle 324 cannot rotate upward, and the first protrusion at the bottom of the limiting buckle 324 is inserted into the sliding groove, thereby restricting the second rotating base 3232.

[0053] Reference Figure 8 and Figure 10 As shown: the annular toothed ring 3221 has annular embedded grooves on both sides; the first rotating seat 3224 and the second rotating seat 3232 have limiting plates 325 on both sides; the limiting plates 325 are inserted into the embedded grooves and abut against the inner circumferential wall of the embedded grooves.

[0054] Since both the first rotating seat 3224 and the second rotating seat 3232 mesh with the inner circumferential wall of the annular gear ring 3221 through the second gear 3225, the pressure roller assembly 321 can be guided to rotate in a circular motion. However, it cannot restrict the horizontal movement of the pressure roller assembly 321 along the working direction. Therefore, limiting plates 325 are provided on both sides of the first rotating seat 3224 and the second rotating seat 3232. The first rotating seat 3224 and the second rotating seat 3232 respectively clamp the annular gear ring 3221 between the two limiting plates 325. At the same time, the annular gear ring 3221 has an annular embedded groove on both sides. After the limiting plate 325 is inserted into the embedded groove, the outer side of the limiting plate 325 abuts against the inner circumferential wall of the embedded groove. This can restrict the horizontal movement of the pressure roller assembly 321 while also guiding the annular rotation of the pressure roller assembly 321.

[0055] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A steel pipe high-efficiency cold rolling device capable of shortening working hours, comprising a workbench (1), a beveling assembly (2) and a cold rolling assembly (3) arranged on the workbench (1), the beveling assembly (2) is used for beveling the end face of a steel pipe, and the cold rolling assembly (3) is used for rolling the steel pipe into a required size. characterized in that The beveling assembly (2) comprises a support frame (21), a moving seat (22), a cutting assembly (23) and a rotating assembly (24). The support frame (21) is arranged on the workbench (1). The moving seat (22) is slidingly arranged on the support frame (21). The cutting assembly (23) is arranged on the rotating assembly (24) and is used for cutting the end face of the steel pipe, and the rotating assembly (24) is arranged in the moving seat (22) and is used for controlling the cutting assembly (23) to rotate. The support frame (21) further comprises a first linear mechanism (25) arranged in the support frame (21) and penetrating through the moving seat (22) and used for controlling the moving seat (22) to move horizontally and linearly in the support frame (21). The cold rolling assembly (3) comprises a cold rolling chamber (31) and a plurality of cold rolling roller assemblies (32). All the cold rolling roller assemblies (32) are linearly and spacedly arranged in the cold rolling chamber (31) from the head end of the workbench (1) to the tail end of the workbench (1). The cold rolling roller assembly (32) comprises a pressure roller assembly (321) and an adjusting assembly (322). The pressure roller assembly (321) is arranged in the adjusting assembly (322) and is used for rolling a billet sent into the cold rolling chamber (31) into a required size, and the adjusting assembly (322) is connected with the inner side wall of the cold rolling chamber (31) and is used for adjusting the angle between the pressure roller assembly (321) and the horizontal plane. The pressure roller assembly (321) comprises an upper roller (3211), a lower roller (3212) and a mounting plate (3213). The mounting plate (3213) has two mutually parallel sides at both sides of the steel pipe. The upper roller (3211) and the lower roller (3212) are arranged between the two mounting plates (3213) and are rotationally connected with the inner side wall of the mounting plate (3213). Two sliding blocks are slidingly arranged on the inner side of the mounting plate (3213), and the two ends of the upper roller (3211) and the lower roller (3212) are respectively rotationally connected with the sliding blocks. A third linear mechanism (3214) penetrating through the two sliding blocks and used for moving the two sliding blocks closer to or farther away from each other is arranged on the inner side of the mounting plate (3213). The adjusting assembly (322) comprises a ring gear (3221), a connecting seat (3222), a first mounting seat (3223), a first rotating seat (3224) and a locking mechanism (3226). The ring gear (3221) is arranged in the cold rolling chamber (31), and the outer peripheral wall of the ring gear (3221) is fixedly connected with the inner side wall of the cold rolling chamber (31). The connecting seats (3222) are arranged at the top end and bottom end of the mounting plates (3213) and outside the mounting plates (3213), and the connecting seats (3222) at the same end of the two mounting plates (3213) are fixedly connected through the first mounting seat (3223); The first rotating seat (3224) is arranged between the first mounting seat (3223) and the ring gear (3221) and is slidably connected with the first mounting seat (3223), and the outer side of the first rotating seat (3224) is provided with the second gear (3225) which is meshed with the inner peripheral wall of the ring gear (3221); The locking mechanism (3226) is arranged between the first mounting seat (3223) and the first rotating seat (3224) and is used for fixing the distance between the first mounting seat (3223) and the first rotating seat (3224); The outer side of the mounting plate (3213) is provided with a supporting assembly (323), and the supporting assembly (323) comprises a second mounting seat (3231), a second rotating seat (3232) and an elastic assembly (3233); The second mounting seat (3231) is arranged outside the mounting plate (3213) and is slidably connected with the second rotating seat (3232), and the elastic assembly (3233) for driving the second rotating seat (3232) away from the second mounting seat (3231) is arranged between the second mounting seat (3231) and the second rotating seat (3232); The outer side of the second rotating seat (3232) is provided with the second gear ring which is meshed with the ring gear (3221).

2. The high efficient steel pipe cold rolling device capable of shortening working hours according to claim 1, characterized in that, The rotating assembly (24) comprises a rotating ring (243), a first gear (242) and a first motor (241); The rotating ring (243) has two parallel rotating rings (243) arranged inside the moving seat (22), and the outer peripheral wall of the rotating ring (243) is provided with a gear ring; The cutting assembly (23) is arranged between the two rotating rings (243); The first gear (242) is arranged inside the moving seat (22) and above the rotating ring (243), and the first gear (242) is meshed with the outer peripheral wall of the rotating ring (243); The first motor (241) is arranged outside the moving seat (22) and is in transmission connection with the first gear (242).

3. The high efficient steel pipe cold rolling device capable of shortening working hours according to claim 2, characterized in that, The cutting assembly (23) comprises a cutter (231) and a second linear mechanism (232); The cutter (231) is arranged on the inner end surface of the rotating ring (243), and the cutter head of the cutter (231) points to the center point of the rotating ring (243); The second linear mechanism (232) is arranged on the inner end surface of the rotating ring (243) and is fixedly connected with the cutter (231), so as to control the cutter (231) to approach or move away from the center point of the rotating ring (243).

4. The high efficient steel pipe cold rolling device capable of shortening working hours according to claim 1, characterized in that, The top end of the second mounting seat (3231) is provided with a limiting buckle (324); The limiting buckle (324) is rotationally connected with the top end of the second mounting base (3231), and the bottom end of the limiting buckle (324) is provided with a first boss inserted into the inside of the second rotating base (3232), so as to avoid that the second rotating base (3232) is completely separated from the inside of the second mounting base (3231).

5. The high efficient steel pipe cold rolling device capable of shortening working hours according to claim 1, characterized in that, The annular gear ring (3221) is provided with an annular structure inner embedding groove on both sides; The two sides of the first rotating base (3224) and the second rotating base (3232) are respectively provided with a limiting plate (325); The limiting plate (325) is inserted into the inner embedding groove and abuts against the inner circumferential wall of the inner embedding groove.

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