Liftable thin-walled tube rolling device
By designing a liftable thin-walled tube rolling device and utilizing a worm gear structure and a driving motor, the roller height can be flexibly adjusted, thus solving the problem of the existing technology requiring machine downtime for roller height adjustment and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202422067269.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-08-26
AI Technical Summary
In the existing thin-walled tube manufacturing process, roller height adjustment requires machine downtime, which affects production efficiency and the adjustment process is cumbersome.
A liftable thin-walled tube rolling device is designed. The synchronous lifting and lowering of the horizontal roller is achieved through a worm gear structure. The roller position is adjusted by combining a push motor and a threaded push rod to achieve flexible adjustment of the roller height.
It achieves fast, stable and precise adjustment of roller height, improves production efficiency, eliminates wrinkles at pipe joints and improves product quality.
Smart Images
Figure CN223301259U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel pipe forming, in particular to a lifting thin-wall pipe rolling device. Background Art
[0002] In the manufacturing process of thin-walled tubes, the machine first rolls the thin plate into a round tube. In the process of rolling the thin plate into a round tube, the edge joints of the thin plates on both sides are deformed due to the elongation of the material, and wrinkles will appear at the joints. In order to eliminate the wrinkles, the conventional method is to lift the rollers upward, so that each extrusion roller is gradually raised in sequence, so that the wrinkles are flattened under the action of forces in different directions. However, in the production process, the height of the rollers must be adjusted according to the different pipe materials, and the machine needs to be stopped to add gaskets. The process is cumbersome and the frequent adjustments affect production. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a thin-walled tube rolling device which can be lifted and lowered, so as to solve the problem of adjusting the height of the horizontal roller at any time.
[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:
[0005] A thin-walled tube rolling device that can be raised and lowered has multiple horizontal rollers and vertical rollers arranged at intervals along the conveying direction of the tube axis, wherein multiple adjacent horizontal rollers can be raised and lowered. The horizontal roller includes two relatively vertical guide frames, and support rods are vertically slidably arranged in the two guide frames. The bottoms of the two guide frames are fixed to the top of the base, and the base is slidably arranged on a forming lathe. A lifting device is provided on the lower end of the support rod in the base, and the two ends of the horizontal central axis of the two upper and lower opposite extrusion wheels are respectively rotatably arranged on the support rods on both sides. Extrusion through holes for the passage of tubes are provided at the opposite positions of the two extrusion wheels, and the central axes of the two extrusion wheels are respectively connected to the horizontal transmission shafts on the same side. The two transmission shafts are connected to the power box for synchronous rotation, and the power box is arranged on the top side of the forming lathe.
[0006] As a preferred embodiment, the lower end of the support rod is a vertical screw, which passes through the top of the base and extends into the inner cavity of the base. A worm nut is provided on a threaded sleeve at the bottom end of the vertical screw. Both ends of the worm nut are rotatably arranged in the inner cavity of the bottom sleeve. The bottom sleeve is fixed to the inside of the base. A horizontal worm is connected to the outer side surfaces of the two worm nuts at the bottom of the same horizontal roller. The worm is rotatably arranged in the base, and one end of the worm is a rotating end. Screwing the rotating end rotates the worm, and the worm drives the two worm nuts to rotate synchronously. The two rotating worm nuts drive the internal vertical screw to rise and fall synchronously, and the support rod connected to the top of the vertical screw rises and falls in the guide frame.
[0007] As a preferred embodiment, one side of the bottom of the guide frame is connected to one end of a horizontal threaded push rod, and the other end of the threaded push rod is transmission-connected to a push motor.
[0008] As a preferred embodiment, the pipe is rolled and shaped on a forming lathe along the axial direction, then enters a water tank for cooling, and finally is adjusted and fine-tuned on a sizing lathe. The forming lathe includes a feeding device, a marking machine, a plurality of horizontal rollers and vertical rollers arranged at intervals, a guide seam assembly, and a tool holder assembly.
[0009] The beneficial effects of the utility model are as follows: the horizontal roller has a lifting function, and the height of the horizontal roller can be conveniently adjusted. The support rod in the horizontal roller is vertically slidably arranged inside the guide frame, and the two ends of the two extrusion wheels are arranged on the support rods on both sides. When the support rod rises and falls and slides in the guide frame, it drives the extrusion wheels to rise and fall, thereby realizing the adjustment of the height of the extrusion through-hole. The lifting device adopts worm gear synchronous transmission, and the thread drives the support rod to rise and fall. The adjustment process is stable and the result is accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0012] Figure 2 for Figure 1 A partial enlarged view of
[0013] Figure 3 is a cross-sectional view of a horizontal roller;
[0014] Figures 1 to 3 Explanation of the reference numerals in the accompanying drawings: 1. Feeding device; 2. Marking machine; 3. Guide seam assembly; 4. Tool holder assembly; 5. Water tank; 6. Sizing lathe; 7. Forming lathe; 8. Horizontal roller; 9. Vertical roller; 10. Vertical screw; 11. Bottom sleeve; 12. Worm nut; 13. Worm; 14. Base; 81. Power box; 82. Drive shaft; 83. Support rod; 84. Extrusion wheel; 85. Extrusion through hole; 86. Guide frame; 87. Threaded push rod; 88. Push motor; 131. Rotating end. DETAILED DESCRIPTION
[0015] The specific implementation scheme of the present utility model is described in detail below with reference to the accompanying drawings.
[0016] like Figures 1 to 3The thin-walled tube rolling device shown in the figure is liftable, and a plurality of horizontal rollers 8 and vertical rollers 9 are arranged at intervals along the conveying direction of the tube axis, wherein the adjacent plurality of horizontal rollers 8 are liftable. The horizontal roller 8 includes two relatively vertical guide frames 86, and support rods 83 are vertically slidably arranged in the two guide frames 86. The bottoms of the two guide frames 86 are fixed to the top of the base 14, and the base 14 is slidably arranged on the forming lathe 7. A lifting device is provided on the lower end of the support rod 83 in the base 14, and the horizontal center axes of the two upper and lower opposite extrusion wheels 84 are respectively rotatably arranged on the support rods 83 on both sides. Extrusion through holes 85 for the passage of the tube are provided at the opposite positions of the two extrusion wheels 84. The center axes of the two extrusion wheels 84 are respectively connected to the horizontal transmission shaft 82 on the same side, and the two transmission shafts 82 are connected to the power box 81 for synchronous rotation. The power box 81 is arranged on one side of the top of the forming lathe 7.
[0017] Specifically, a lifting device is provided at the bottom of the support rod 83, and the lifting device drives the support rod 83 to be lifted and lowered in the guide frame 86, so that the two upper and lower opposite extrusion wheels 84 on the support rod 83 are lifted and lowered at the same time, and the height of the extrusion through-hole 85 can be adjusted, so that the height of the extrusion through-hole 85 of multiple horizontal rollers 8 is increased in sequence. The increasing height can eliminate wrinkles at the joint when the pipe is curled and aligned into a round pipe.
[0018] like Figure 2 and Figure 3 The lower end of the support rod 83 is a vertical screw 10, which passes through the top of the base 14 and extends into the inner cavity of the base 14. A worm nut 12 is provided on the threaded sleeve at the bottom end of the vertical screw 10. The two ends of the worm nut 12 are rotatably arranged in the inner cavity of the bottom sleeve 11. The bottom sleeve 11 is fixed to the inside of the base 14. A horizontal worm 13 is transmission-connected to the outer sides of the two worm nuts 12 at the bottom of the same horizontal roller 8. The worm 13 is rotatably arranged in the base 14, and one end of the worm 13 is a rotating end 131. Screwing the rotating end 131 rotates the worm 13, and the worm 13 drives the two worm nuts 12 to rotate at the same time. The two rotating worm nuts 12 respectively drive the internal vertical screw 10 to rise and fall synchronously, and the support rod 83 connected to the top of the vertical screw 10 rises and falls in the guide frame 86. The two vertical screws 10 are driven to rise and fall synchronously by the worm gear structure. The forward and reverse rotation of the worm 13 can make the two worm wheel nuts 12 rotate simultaneously. When the worm wheel nut 12 rotates, the vertical screw 10 connected to the internal thread is guided by the thread to rise or fall. The operation process is stable, the lifting distance is highly accurate, and it can also be adjusted during the pipe conveying process.
[0019] like Figure 3The bottom side of the guide frame 86 is connected to one end of a horizontal threaded push rod 87, and the other end of the threaded push rod 87 is connected to the driving motor 88. The base 14 fixedly connected to the bottom of the guide frame 86 is slidably set on the top of the forming lathe 7. When the driving motor 88 drives the threaded push rod 87 to rotate, extend or retract, the horizontal roller 8 moves left and right to adjust its position.
[0020] like Figure 1 The pipe is rolled and shaped along its axis on a forming lathe 7, cooled in a water tank 5, and finally adjusted and refined on a sizing lathe 6. The forming lathe 7 comprises a feeding device 1, a marking machine 2, multiple horizontal rollers 8 and vertical rollers 9 arranged at intervals, a seam guide assembly 3, and a tool holder assembly 4. The pipe is rolled, adjusted, and shaped at these multiple stations, ultimately becoming a qualified product.
[0021] The working process of this utility model is as follows:
[0022] As shown in Figures 1-3, first, the pipe is input from the feeding device 1, marked by the marking machine 2, and then enters the horizontal roller 8 and vertical roller 9 to be curled and aligned into a round tube. During the production process, the height of the horizontal roller 8 is adjusted according to the folds at the alignment. After the pipe is cooled in the water tank 5, it enters the sizing lathe 6 for trimming to meet the precision requirements.
[0023] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some embodiments of its application, and are not intended to limit the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.
Claims
1. A thin-walled tube rolling device that can be lifted and lowered, comprising a plurality of horizontal rollers (8) and vertical rollers (9) arranged at intervals along the tube axis conveying direction, characterized in that: The plurality of adjacent horizontal rollers (8) are arranged to be lifted and lowered. The horizontal roller (8) includes two relatively vertical guide frames (86). A support rod (83) is arranged vertically and slidably in the two guide frames (86). The bottoms of the two guide frames (86) are fixed to the top of the base (14). The base (14) is slidably arranged on the forming lathe (7). A lifting device is arranged on the lower end of the support rod (83) in the base (14). The two ends of the horizontal central axis of the two upper and lower opposite extrusion wheels (84) are rotatably arranged on the support rods (83) on both sides. Extrusion holes (85) for pipes to pass through are arranged at opposite positions of the two extrusion wheels (84). The central axes of the two extrusion wheels (84) are connected to the horizontal transmission shafts (82) on the same side respectively. The two transmission shafts (82) are connected to the power box (81) for synchronous rotation. The power box (81) is arranged on one side of the top of the forming lathe (7).
2. The liftable thin-walled tube rolling device according to claim 1, characterized in that: The lower end of the support rod (83) is a vertical screw (10), which passes through the top of the base (14) and extends into the inner cavity of the base (14). The threaded sleeve on the bottom end of the vertical screw (10) is provided with a worm nut (12). The two ends of the worm nut (12) are rotatably arranged in the inner cavity of the bottom sleeve (11). The bottom sleeve (11) is fixed inside the base (14). A horizontal worm (13) is connected to the two worm nuts at the bottom of the same horizontal roller (8). (12) is connected to the outer side of the transmission, and the worm (13) is rotatably arranged in the base (14). One end of the worm (13) is a rotating end (131). The rotating end (131) is screwed to rotate the worm (13). The worm (13) drives the two worm wheel nuts (12) to rotate synchronously. The rotating two worm wheel nuts (12) respectively drive the internal vertical screw (10) to rise and fall synchronously, and the support rod (83) connected to the top of the vertical screw (10) rises and falls in the guide frame (86).
3. The liftable thin-walled tube rolling device according to claim 1, characterized in that: One side of the bottom of the guide frame (86) is connected to one end of a horizontal threaded push rod (87), and the other end of the threaded push rod (87) is transmission-connected to a propulsion motor (88).
4. The liftable thin-walled tube rolling device according to claim 1, characterized in that: The forming lathe (7) comprises in sequence a feeding device (1), a marking machine (2), a plurality of horizontal rollers (8) and vertical rollers (9) arranged at intervals, a guide seam assembly (3) and a tool holder assembly (4).