Pipe orifice finishing equipment based on spiral steel pipe production
By designing a pipe end trimming device for spiral steel pipe production, the device utilizes a trimming base and a motor-driven trimming block to dynamically adjust the pipe end, solving the problem of inconvenient trimming in existing equipment and achieving a highly efficient pipe end trimming effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN TONGXINTAI STEEL PIPE MFG
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-26
AI Technical Summary
Existing spiral steel pipe production equipment lacks dynamic adjustment when trimming pipe ends, making it difficult to make convenient adjustments based on the specifications of the outer wall of the steel pipe.
A pipe end trimming device for spiral steel pipe production was designed, including a trimming base, a support frame, a chuck, a trimming disc, and a trimming block. The pipe end is ground and trimmed by rotating the trimming block, and dynamic adjustment is achieved by combining an electric push rod and a motor drive.
It enables efficient grinding and finishing of spiral steel pipe ends, adapts to the finishing needs of steel pipes of different specifications, and improves finishing efficiency and accuracy.
Smart Images

Figure CN224274425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spiral steel pipe production technology, specifically to pipe end trimming equipment for spiral steel pipe production. Background Technology
[0002] Spiral steel pipe is made from strip steel coil as raw material, formed by cold extrusion, and welded by automatic double-wire double-sided submerged arc welding process. After production, the pipe end often has burrs or deformation, so it needs to be repaired accordingly.
[0003] However, current trimming equipment lacks dynamic adjustment during the trimming of steel pipe ends, making it difficult to make more convenient adjustments to the pipe ends according to the specifications of the outer wall of the steel pipe. Therefore, existing technology needs to be improved. Utility Model Content
[0004] The purpose of this utility model is to provide a pipe end trimming device for spiral steel pipe production, so as to solve the problem mentioned in the background art: [However, in terms of the current trimming equipment, when trimming the pipe end of the steel pipe, there is a lack of dynamic adjustment during the trimming process, making it difficult to make more convenient adjustments to the pipe end according to the specifications of the outer wall of the steel pipe.]
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe end trimming device for spiral steel pipe production, including a trimming base, a support frame mounted on the rear side of the top of the trimming base, a chuck mounted on the top of the trimming base, and a spiral steel pipe placed inside the chuck.
[0006] The bottom end of the support frame is equipped with a trimming disc, which is located at the top of the spiral steel pipe.
[0007] The trimming disc has trimming blocks evenly and equidistantly mounted on its bottom outer wall along its axis. The trimming blocks have trimming clamping cavities at their bottom ends, which are clamped at the opening of the spiral steel pipe.
[0008] The inner walls on both sides of the trimming cavity are equipped with trimming components, which are fitted to the opening wall of the spiral steel pipe. A grinding plate is installed on the outer wall of the trimming components, and a grinding layer is provided on the outer wall of the grinding plate.
[0009] As a preferred embodiment of the pipe end trimming equipment for spiral steel pipe production of this utility model, the trimming body has a filling cavity inside, and the filling cavity is provided with a filling pad layer.
[0010] As a preferred embodiment of the pipe end trimming equipment for spiral steel pipe production of this utility model, the bottom end of the trimming block is provided with an arc surface.
[0011] As a preferred embodiment of the pipe end trimming equipment for spiral steel pipe production of this utility model, an electric push rod is installed at the top of the support frame, a bearing block is installed at the driving end of the electric push rod, a motor is installed at the bottom end of the bearing block, a fixed cylinder is installed at the driving end of the motor, a fixed rod is installed inside the fixed cylinder, and the fixed rod is connected to the trimming disc.
[0012] As a preferred embodiment of the pipe end trimming equipment for spiral steel pipe production of this utility model, the side wall of the fixed cylinder is provided with a fixing screw hole, the outer wall of the fixed rod is provided with a fixing screw groove, and a fixing screw is screwed into the fixing screw hole and the fixing screw groove.
[0013] As a preferred embodiment of the pipe end trimming equipment for spiral steel pipe production according to this utility model, a turntable is installed at the end of the fixed screw.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the structure design of the pipe end trimming equipment for spiral steel pipe production is reasonable;
[0015] By setting a support frame at the top of the dressing base, and setting a dressing plate on the support frame, and by setting a dressing block at the bottom of the dressing plate along its axis, the burrs at the pipe opening can be ground and dressed by rotating the plate, thus achieving a more practical purpose. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the trimming disc of this utility model;
[0018] Figure 3 This is a schematic diagram of the trimming block of this utility model;
[0019] Figure 4 This is a schematic diagram of the overall structure of this utility model.
[0020] In the diagram: 1. Dressing base; 2. Chuck; 3. Spiral steel pipe; 4. Dressing disc; 5. Bearing block; 6. Bearing block; 7. Electric push rod; 8. Fixing rod; 9. Fixing cylinder; 10. Motor; 11. Dressing block; 12. Turntable; 13. Fixing screw; 14. Fixing screw hole; 15. Overall dressing; 16. Dressing chuck cavity; 17. Arc surface; 18. Grinding plate; 19. Grinding layer. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4 This utility model provides a technical solution:
[0023] In this technical solution, a pipe end trimming device for spiral steel pipe production includes a trimming base 1. A support frame 6 is mounted on the rear side of the top of the trimming base 1. A chuck 2 is mounted on the top of the trimming base 1, and a spiral steel pipe 3 is placed inside the chuck 2. A trimming disc 4 is mounted on the bottom of the support frame 6, and the trimming disc 4 is positioned directly above the spiral steel pipe 3. Trimming blocks 11 are evenly spaced along the axis of the outer wall of the bottom of the trimming disc 4. A trimming clamping cavity 16 is opened at the bottom of the trimming block 11, and the trimming clamping cavity 16 is clamped at the pipe end of the spiral steel pipe 3. Trimming bodies 15 are installed on both inner walls of the trimming clamping cavity 16. The trimming bodies 15 are fitted to the opening wall of the spiral steel pipe 3. A grinding plate 18 is installed on the outer wall of the trimming body 15, and a grinding layer 19 is provided on the outer wall of the grinding plate 18.
[0024] In this technical solution, a support frame 6 is vertically installed on the rear side of the top of the dressing base 1. The bottom end of the support frame 6 is located at the top of the spiral steel pipe 3 and a dressing plate 4 is set there. A dressing block 11 is set at the bottom edge of the dressing plate 4. The dressing block 11 is locked in the opening of the spiral steel pipe 3 through the dressing cavity 16. Thus, by rotating the dressing plate 4, the grinding plate 18 and the grinding layer 19 are used to dress and grind the opening wall of the spiral steel pipe 3.
[0025] In some technical solutions, the interior of the repair body 15 is provided with a filling cavity 20, and the interior of the filling cavity 20 is provided with a filling pad layer 21.
[0026] In this technical solution, the elasticity of the repair body 15 can be improved by filling the pad 22, and the grinding layer 19 can be tightly attached to the opening wall of the spiral steel pipe 3.
[0027] In some technical solutions, the bottom end of the trimming block 11 is provided with an arc surface 17.
[0028] In this technical solution, the arc surface 17 facilitates the fitting of the trimming block 11 at the opening of the spiral steel pipe 3.
[0029] In some technical solutions, an electric push rod 7 is installed at the top of the support frame 6, a bearing block 5 is installed at the driving end of the electric push rod 7, a motor 10 is installed at the bottom of the bearing block 5, a fixed cylinder 9 is installed at the driving end of the motor 10, a fixed rod 8 is installed inside the fixed cylinder 9, and the fixed rod 8 is connected to the trimming disc 4.
[0030] In this technical solution, the trimming disc 4 can be raised and lowered by the electric push rod 7. The trimming disc 4 is inserted into the fixed cylinder 9 by the fixed rod 8, thereby connecting to the drive end of the motor 10, and then the motor 10 drives the trimming disc 4 to rotate.
[0031] In some technical solutions, the side wall of the fixed cylinder 9 is provided with a fixing screw hole 14, the outer wall of the fixed rod 8 is provided with a fixing screw groove, and a fixing screw 13 is screwed into the fixing screw hole 14 and the fixing screw groove.
[0032] In this technical solution, the outer wall of the fixing rod 8 and the inner wall of the fixing cylinder 9 are interference fit, so that when the fixing rod 8 is inserted into the fixing cylinder 9, the positions of the fixing screw groove and the fixing screw hole 14 correspond, thereby fixing the fixing screw 13 into the fixing screw hole 14 and the fixing screw groove.
[0033] In some technical solutions, a turntable 12 is installed at the end of the fixing screw 13.
[0034] In this technical solution, the turntable 12 facilitates the rotation of the fixing screw 13.
[0035] Working process and principle: In use, first, fix the fixing rod 8 inside the fixing cylinder 9, thereby fixing the dressing disc 4 on the motor 10. Then, fix the spiral steel pipe 3 that needs to be dressed inside the chuck 2. Then, control the electric push rod 7 to move downward, so that the dressing block 11 on the dressing disc 4 is clamped on the opening wall of the spiral steel pipe 3 through the dressing clamp cavity 16. Then, start the motor 10 to rotate the dressing disc 4. At this time, the grinding layer 19 grinds and dresses the opening wall of the spiral steel pipe 3.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0037] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A pipe end trimming device for spiral steel pipe production, comprising a trimming base (1), characterized in that: The top rear side of the trimming base (1) is equipped with a support frame (6), and the top of the trimming base (1) is equipped with a chuck (2), and a spiral steel pipe (3) is placed inside the chuck (2). The bottom end of the support frame (6) is equipped with a trimming disc (4), which is located at the top of the spiral steel pipe (3). The trimming disc (4) has trimming blocks (11) evenly and equidistantly mounted on its bottom outer wall along its axis. The trimming block (11) has a trimming clamping cavity (16) at its bottom end, which is clamped at the opening of the spiral steel pipe (3). The inner walls on both sides of the trimming cavity (16) are equipped with trimming bodies (15), which are fitted to the opening wall of the spiral steel pipe (3). The outer wall of the trimming body (15) is equipped with a grinding plate (18), and the outer wall of the grinding plate (18) is provided with a grinding layer (19).
2. The pipe end trimming equipment for spiral steel pipe production according to claim 1, characterized in that: The interior of the repair body (15) is provided with a filling cavity (20), and a filling pad layer (21) is provided inside the filling cavity (20).
3. The pipe end trimming equipment for spiral steel pipe production according to claim 2, characterized in that: The bottom end of the trimming block (11) has an arc surface (17).
4. The pipe end trimming equipment for spiral steel pipe production according to claim 1, characterized in that: An electric push rod (7) is installed at the top of the support frame (6). A bearing block (5) is installed at the driving end of the electric push rod (7). A motor (10) is installed at the bottom of the bearing block (5). A fixed cylinder (9) is installed at the driving end of the motor (10). A fixed rod (8) is installed inside the fixed cylinder (9). The fixed rod (8) is connected to the trimming disc (4).
5. The pipe end trimming equipment for spiral steel pipe production according to claim 4, characterized in that: The side wall of the fixed cylinder (9) is provided with a fixing screw hole (14), and the outer wall of the fixed rod (8) is provided with a fixing screw groove. A fixing screw rod (13) is screwed into the fixing screw hole (14) and the fixing screw groove.
6. The pipe end trimming equipment for spiral steel pipe production according to claim 5, characterized in that: A turntable (12) is installed at the end of the fixing screw (13).