A multi-section cooling and clamping device for forming a water-cooled cast iron pipe
The multi-stage cooling clamping device driven by a motor achieves rapid and stable fixing and uniform cooling, solving the problems of cumbersome adjustment and uneven clamping force of existing devices, and improving the precision and production efficiency of cast iron pipe forming.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANGANG GRP YONGTONG DUCTILE CAST IRON PIPE CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-21
Smart Images
Figure CN224525959U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe casting equipment technology, and in particular to a multi-stage cooling clamping device for water-cooled cast iron pipe forming. Background Technology
[0002] Water-cooled cast iron pipe forming is a casting process that utilizes a water-cooled metal mold to rapidly cool molten iron. Molten iron is poured into a rotating water-cooled mold, where it is subjected to centrifugal force and cooling to form a tubular blank. Rapid cooling results in a denser crystal structure in the casting, improving its strength, hardness, and corrosion resistance. It is widely used in water and gas transmission projects and is one of the mainstream technologies for cast iron pipe forming. The multi-segment cooling clamping device for water-cooled cast iron pipe forming is used in the centrifugal forming process of cast iron pipe. It can realize segmented cooling and precise clamping of the pipe. It mainly consists of multiple independent cooling chambers, distributed clamping mechanisms and synchronous drive components. The distributed hydraulic jaws clamp the pipe segment by segment according to the cooling process, and adjust the pressure in real time according to the shrinkage to offset the cooling stress and prevent deformation. The synchronous drive components link the various mechanisms to work together, and combined with the guide positioning, ensure the straightness of the pipe, and finally achieve uniform cooling and high-precision forming of cast iron pipe.
[0003] In existing technologies, some multi-stage cooling clamping devices for water-cooled cast iron pipe forming suffer from the problem of varying diameters of cast iron pipes. The adjustment mechanisms of existing clamping devices are mostly bolt-based, which are cumbersome to operate and have low adjustment accuracy. This makes it difficult to quickly adapt to cast iron pipes of different diameters, which not only reduces production efficiency but also leads to uneven distribution of clamping force due to improper adjustment, further increasing the risk of deformation of the cast iron pipes. Therefore, a multi-stage cooling clamping device for water-cooled cast iron pipe forming is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a multi-stage cooling clamping device for water-cooled cast iron pipe forming, which aims to improve the problem of uneven clamping force distribution and increased risk of deformation of cast iron pipe in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A multi-segment cooling clamping device for water-cooled cast iron pipe forming includes a base, a clamping mechanism fixedly connected to the top of the base, and two cooling mechanisms fixedly connected inside the base. The clamping mechanism includes a motor, the bottom of which is fixedly connected to the top of the base. The drive end of the motor is fixedly connected to a drive shaft. Multiple gears are fixedly connected to the outside of the drive shaft. Multiple fixing blocks are fixedly connected to the top of the base. Two toothed plates are slidably connected inside the fixing blocks. A connecting plate is fixedly connected to the left side of the toothed plates. Two clamping blocks are slidably connected to adjacent sides of the two connecting plates. An adjustment component is rotatably connected inside the connecting plate. As a further description of the above technical solution: The adjustment assembly includes a linkage platform, which is rotatably connected to the outside of the connecting plate. Two linkage shafts are rotatably connected to the bottom of the linkage platform. A connecting column is fixedly connected to the bottom of one of the linkage platforms. A connecting column is slidably connected inside the connecting column. A spring is sleeved on the outside of the connecting column. A knob is fixedly connected to the bottom of one of the connecting columns. Multiple limiting columns are fixedly connected to the top of one of the knobs. Multiple limiting holes are opened inside the connecting plate. As a further description of the above technical solution: The cooling mechanism includes two through pipes. A water inlet pipe is fixedly connected to the inner wall of the clamping block, and a drain pipe is fixedly connected to the inner wall of the clamping block. A cooling clamping plate is detachably connected inside the clamping block. Two connecting ends are fixedly connected to the left side of one of the cooling clamping plates. Multiple driven columns are slidably connected inside the clamping block. Springs are sleeved on the outside of the driven columns. Wedge blocks are fixedly connected to the bottom of two driven columns, and a lever block is fixedly connected to the top of two driven columns. As a further description of the above technical solution: Two of the toothed plates are meshed with the gear on their adjacent sides, and the two linkage shafts are rotatably connected to the adjacent sides of the two clamping blocks respectively. As a further description of the above technical solution: The top of one of the springs is fixedly connected to the top inner wall of one of the connecting posts, and the bottom of one of the springs is fixedly connected to the inner wall of the connecting plate. The outer side of the limiting post is in contact with the inner wall of the limiting hole. As a further description of the above technical solution: One of the water inlet pipes is externally fixedly connected to the right side of one of the fixing blocks, and one of the drain pipes is externally fixedly connected to the right side of one of the fixing blocks; As a further description of the above technical solution: The outer side of the wedge block is in contact with the inner wall of the cooling clamp, and the front side of one of the driven columns is fixedly connected to the inner wall of one of the clamp blocks; As a further description of the above technical solution: The bottom of the plurality of water inlet pipes is fixedly connected to the top of one of the through pipes, and the bottom of the plurality of drain pipes is fixedly connected to the top of another through pipe.
[0006] This utility model has the following beneficial effects: 1. In this utility model, the starting motor drives the drive shaft to rotate, which in turn enables the gears to drive the toothed plates on both sides to slide inward synchronously within the fixed block. This, in turn, causes the connecting plate and clamping block to tighten inward. By pulling the knob outward, the limiting post is disengaged from the limiting hole. Rotating the knob drives the linkage table to rotate through the connecting post, causing the linkage shaft to push the clamping block to move. The elastic reset of the spring causes the limiting post to reset and engage with the limiting hole to complete the fixation. This achieves rapid and stable fixation of the cast iron pipe, reduces manual operation errors, improves clamping stability and production efficiency, and can adapt to cast iron pipes of different diameters, enhancing the equipment's versatility and production adaptability.
[0007] 2. In this utility model, the connecting end is aligned with the water inlet pipe and the drain pipe and inserted. After the wedge block is squeezed, it is reset and locked into the cooling clamp plate under the action of the second spring to complete the fixation. Pulling the lever block drives the wedge block to disassemble from the inside of the clamp plate through the driven column to complete the disassembly. This realizes that each cooling clamp plate can absorb the heat of the cast iron pipe evenly and efficiently, quickly reduce the temperature of the pipe body, effectively avoid deformation caused by thermal stress, significantly improve the forming accuracy and product quality of the cast iron pipe, facilitate daily maintenance and replacement, and adapt to different production needs. Attached Figure Description
[0008] Figure 1 This is a three-dimensional schematic diagram of a multi-segment cooling clamping device for forming water-cooled cast iron pipes according to the present invention. Figure 2 This is a schematic diagram of the structure of the fixing block of a multi-segment cooling clamping device for forming water-cooled cast iron pipes proposed in this utility model. Figure 3 This is a schematic diagram of the connecting plate of a multi-segment cooling clamping device for forming water-cooled cast iron pipes proposed in this utility model. Figure 4 This is a schematic diagram of the clamping block of a multi-segment cooling clamping device for forming water-cooled cast iron pipes proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the clamping plate of a multi-segment cooling clamping device for forming water-cooled cast iron pipes proposed in this utility model.
[0009] Legend: 1. Base; 2. Clamping mechanism; 21. Motor; 22. Drive shaft; 23. Gear; 24. Fixing block; 25. Gear plate; 26. Connecting plate; 27. Clamping block; 28. Adjustment component; 281. Linkage table; 282. Linkage shaft; 283. Connecting column; 284. Connecting column; 285. Spring one; 286. Knob; 287. Limiting column; 288. Limiting hole; 3. Cooling mechanism; 31. Through pipe; 32. Water inlet pipe; 33. Drain pipe; 34. Cooling clamping plate; 35. Connecting end; 36. Driven column; 37. Spring two; 38. Wedge block; 39. Pulley block. Detailed Implementation
[0010] 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.
[0011] Reference Figures 1 to 3 An embodiment of this utility model is provided: a multi-segment cooling clamping device for water-cooled cast iron pipe forming, including a base 1, a clamping mechanism 2 fixedly connected to the top of the base 1, and two cooling mechanisms 3 fixedly connected inside the base 1. The clamping mechanism 2 includes a motor 21, which is the power source of the clamping mechanism 2. The bottom of the motor 21 is fixedly connected to the top of the base 1, and the base 1 provides fixation and support for the motor 21. The drive end of the motor 21 is fixedly connected to a drive shaft 22, which can receive power from the motor 21 to rotate. Multiple gears 23 are fixedly connected to the outside of the drive shaft 22, which can receive the force from the rotation of the drive shaft 22 to rotate and thus rotate synchronously. Multiple fixing blocks 24 are fixedly connected to the top of the base 1, which provides fixation and support for the fixing blocks 24. Two toothed plates 25 are slidably connected inside the fixing blocks 24, which provide limiting and guiding functions for the toothed plates 25. At the same time, the two toothed plates 25 can move synchronously inward or outward by meshing with the gears 23. Reference Figures 3 to 5A connecting plate 26 is fixedly connected to the left side of the toothed plate 25, allowing the two connecting plates 26 to receive forces from the two toothed plates 25 and move synchronously inward or outward. Two clamping blocks 27 are slidably connected to adjacent sides of the two connecting plates 26, forming a set of two clamping blocks 27. The upper and lower sets can clamp and fix the outside of the cast iron pipe. An adjusting assembly 28 is rotatably connected inside the connecting plate 26. The adjusting assembly 28 includes a linkage table 281, which is a key component for adjusting the spacing of the clamping blocks 27. The linkage table 281 is rotatably connected to the connecting plate 25. Inside 6, the connecting plate 26 provides installation space and support for the linkage table 281. The bottom of the linkage table 281 is rotatably connected to two linkage shafts 282. When the linkage table 281 rotates, the linkage shafts 282 can receive force from the linkage table 281 and move synchronously. The bottom of one of the linkage tables 281 is fixedly connected to a connecting column 283. The connecting column 283 can receive external force to drive the linkage table 281 to rotate synchronously. The connecting column 283 is slidably connected to a connecting column 284. The connecting column 283 provides limiting and guiding functions for the connecting column 284. A spring 285 is fitted around the outside of the connecting post 284. The spring 285 has an elastic function and provides elastic support for the connecting post 283. A knob 286 is fixedly connected to the bottom of one of the connecting posts 284. When it is necessary to adjust the distance between the two clamps 27 to accommodate pipes of different diameters, the knob 286 is pulled outward. Multiple limiting posts 287 are fixedly connected to the top of one of the knobs 286. The knob 286 provides fixation and support for the limiting posts 287. Multiple limiting holes 288 are opened inside the connecting plate 26. When the knob 286 moves outward, it can pull the limiting posts 287 out of the limiting holes 288. Then, by rotating the knob 286, the connecting column 283 is driven to rotate synchronously by the spring 285, which in turn drives the linkage table 281 to rotate synchronously, causing it to pull the linkage shafts 282 on both sides to move outward synchronously. This, in turn, drives the clamping blocks 27 on both sides to move inward or outward synchronously, thereby achieving the function of adjusting the spacing and completing the adjustment effect according to different diameters. After the adjustment is completed, by releasing the knob 286, the elastic action of the spring 285 pushes the connecting column 284 to reset, which in turn drives the knob 286 and the limiting column 287 to reset, so that they are locked into the corresponding limiting hole 288, thereby completing the limiting of the clamping block 27.
[0012] Reference Figure 2 , Figure 4 and Figure 6The cooling mechanism 3 includes two pipes 31, one for water inlet and the other for drainage. A water inlet pipe 32 is fixedly connected to the inner wall of the clamping block 27, providing fixation and support for the water inlet pipe 32. A drain pipe 33 is fixedly connected to the inner wall of the clamping block 27, providing fixation and support for the drain pipe 33. A cooling clamping plate 34 is detachably connected inside the clamping block 27. The cooling clamping plate 34 has a cavity inside, which can place the water delivered by the water inlet pipe 32. When clamping and fixing the cast iron pipe, the water can be cooled by the cooling clamping plate 34, and the water can be drained by the drain pipe 33, so as to form continuous heat dissipation, effectively improve cooling efficiency and molding accuracy, and avoid deformation due to thermal stress. Multiple cooling clamping plates 34 can perform segmented and rapid cooling during the molding process of the cast iron pipe. One of the cooling clamps 34 has two fixedly connected ends 35 on its left side. These ends 35 allow for quick insertion of the inlet pipe 32 and drain pipe 33 during rapid installation of the cooling clamp 34. Multiple driven posts 36 are slidably connected inside the clamping block 27, providing limiting and guiding functions for the driven posts 36. A second spring 37 is fitted around the outside of each driven post 36, providing elastic support. Wedge blocks 38 are fixedly connected to the bottom of each of the two driven posts 36. During rapid installation of the cooling clamp 34, the two connecting ends 35 are first quickly inserted into the interfaces of the inlet pipe 32 and drain pipe 33, and then the cooling clamp 34 is pressed inwards, causing the wedge blocks 38 to... 8 is compressed by the cooling clamp 34 and retracts due to the elastic action of the second spring 37. When the cooling clamp 34 is fully inserted, the wedge block 38 pushes the driven column 36 and the wedge block 38 to reset through the elastic action of the driven column 36, so that the wedge block 38 is inserted into the interior of the corresponding cooling clamp 34, thus completing the limiting and fixing of the cooling clamp 34. One of the lever blocks 39 is fixedly connected to the top of the two driven columns 36. When it is necessary to release the limiting of the cooling clamp 34, the lever block 39 is pulled outward, which in turn drives the wedge block 38 to move outward through the driven column 36, while simultaneously compressing the second spring 37, causing it to disengage from the interior of the cooling clamp 34. The cooling clamp 34 can then be disassembled for maintenance and replacement.
[0013] Reference Figure 3 and Figure 5Two toothed plates 25 are connected to the outside of gear 23 by meshing on their adjacent sides. When gear 23 rotates, it can drive the toothed plates 25 on both sides to move inward or outward synchronously. Two linkage shafts 282 are rotatably connected to the adjacent sides of two clamping blocks 27 by their opposite sides. The two linkage shafts 282 can receive the force of the rotation of the linkage table 281 to drive the clamping blocks 27 on both sides to slide inward or outward synchronously for adjustment. The top of one spring 285 is fixedly connected to the top inner wall of one of the connecting columns 284. Spring 285 has an elastic function and provides elastic support for its connecting column 284. The bottom of one spring 285 is fixedly connected to the inner wall of the connecting plate 26. The connecting plate 26 provides fixation and support for spring 285. The outside of the limiting column 287 is in contact with the inner wall of the limiting hole 288. The limiting column 287 is used to lock into the inside of the limiting hole 288 to limit and fix the adjusting component 28, thereby limiting and fixing the clamping block 27.
[0014] Reference Figure 3 and Figure 6 One of the water inlet pipes 32 is externally fixedly connected to the right side of one of the fixing blocks 24, which provides fixation and support for the water inlet pipe 32. One of the drain pipes 33 is externally fixedly connected to the right side of one of the fixing blocks 24, which provides fixation and support for the drain pipe 33. The outside of the wedge block 38 is in contact with the inner wall of the cooling clamp 34, and the wedge block 38 is used to lock into the interior of the cooling clamp 34 to limit and fix it. The front side of one of the driven columns 36 is fixedly connected to the inner wall of one of the clamping blocks 27, which provides fixation and support for the driven column 36. The bottom of multiple water inlet pipes 32 is fixedly connected to the top of one of the through pipes 31, which can supply water to multiple water inlet pipes 32. The bottom of multiple drain pipes 33 is fixedly connected to the top of another through pipe 31, which can drain water from multiple drain pipes 33, forming a continuous heat dissipation and cooling cycle.
[0015] Working principle: When using the cast iron pipe, the motor 21 drives the drive shaft 22 to rotate, which in turn drives the gear 23 to rotate. This causes the gear 23 to drive the toothed plates 25 on both sides to slide inward synchronously within the fixed block 24, which in turn drives the connecting plate 26 to tighten inward. This, in turn, causes the clamping block 27 to complete the clamping of the cast iron pipe. When the spacing needs to be adjusted to accommodate different pipe diameters, the knob 286 is pulled outward to disengage the limiting post 287 from the limiting hole 288. Rotating the knob 286 drives the linkage table 281 to rotate through the connecting post 283, which causes the linkage shaft 282 to push the clamping block 27 to move. After adjustment, the knob 286 is released, and the elastic return of the spring 285 causes the limiting post 287 to reset and lock into the limiting hole 288 to complete the fixation, thus completing the adjustment of the spacing between the two clamping blocks 27.
[0016] After the cast iron pipe is clamped, cold water can be delivered to each inlet pipe 32 through one of the through pipes 31, and then the cooling water can be delivered to the cavity of each cooling clamp 34. The clamp 27 can then contact the cast iron pipe to transfer heat for absorption and cooling. At the same time, the hot water can be returned to the other through pipe 31 through the drain pipe 33 to form a circulation. When the cooling clamp 34 needs to be installed, the connecting end 35 is aligned with the inlet pipe 32 and the drain pipe 33 and inserted. After the wedge block 38 is squeezed, it is reset under the action of the second spring 37 and locked into the cooling clamp 34 to complete the fixation. When disassembling, the pull block 39 is pulled to drive the wedge block 38 out of the interior of the clamp 34 through the driven column 36 to complete the disassembly.
[0017] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-segment cooling clamping device for forming water-cooled cast iron pipes, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a clamping mechanism (2), and the inside of the base (1) is fixedly connected to two cooling mechanisms (3). The clamping mechanism (2) includes a motor (21), the bottom of which is fixedly connected to the top of the base (1). The drive end of the motor (21) is fixedly connected to a drive shaft (22). Multiple gears (23) are fixedly connected to the outside of the drive shaft (22). Multiple fixing blocks (24) are fixedly connected to the top of the base (1). Two toothed plates (25) are slidably connected inside the fixing blocks (24). A connecting plate (26) is fixedly connected to the left side of the toothed plates (25). Two clamping blocks (27) are slidably connected to the adjacent sides of the two connecting plates (26). An adjusting component (28) is rotatably connected inside the connecting plate (26).
2. The multi-segment cooling clamping device for water-cooled cast iron pipe forming according to claim 1, characterized in that: The adjustment assembly (28) includes a linkage platform (281), which is rotatably connected to the outside of the connecting plate (26). Two linkage shafts (282) are rotatably connected to the bottom of the linkage platform (281). One of the linkage platforms (281) is fixedly connected to the bottom of one of the linkage platforms (281). A connecting column (284) is slidably connected inside the connecting column (283). A spring (285) is sleeved on the outside of the connecting column (284). A knob (286) is fixedly connected to the bottom of one of the connecting columns (284). Multiple limiting columns (287) are fixedly connected to the top of one of the knobs (286). Multiple limiting holes (288) are opened inside the connecting plate (26).
3. The multi-segment cooling clamping device for water-cooled cast iron pipe forming according to claim 1, characterized in that: The cooling mechanism (3) includes two through pipes (31), a water inlet pipe (32) is fixedly connected to the inner wall of the clamp (27), a drain pipe (33) is fixedly connected to the inner wall of the clamp (27), a cooling clamp plate (34) is detachably connected inside the clamp (27), two connecting ends (35) are fixedly connected to the left side of one of the cooling clamp plates (34), a plurality of driven columns (36) are slidably connected inside the clamp (27), a spring two (37) is sleeved on the outside of the driven column (36), a wedge block (38) is fixedly connected to the bottom of two driven columns (36), and a lever block (39) is fixedly connected to the top of two driven columns (36).
4. The multi-segment cooling clamping device for water-cooled cast iron pipe forming according to claim 2, characterized in that: Two of the toothed plates (25) are externally meshed with the gear (23) on their adjacent sides, and the two linkage shafts (282) are rotatably connected to the adjacent sides of the two clamping blocks (27).
5. The multi-segment cooling clamping device for water-cooled cast iron pipe forming according to claim 2, characterized in that: The top of one of the springs (285) is fixedly connected to the top inner wall of one of the connecting posts (284), the bottom of one of the springs (285) is fixedly connected to the inner wall of the connecting plate (26), and the outside of the limiting post (287) is in contact with the inner wall of the limiting hole (288).
6. The multi-segment cooling clamping device for water-cooled cast iron pipe forming according to claim 3, characterized in that: One of the water inlet pipes (32) is externally fixedly connected to the right side of one of the fixing blocks (24), and one of the drain pipes (33) is externally fixedly connected to the right side of one of the fixing blocks (24).
7. The multi-segment cooling clamping device for water-cooled cast iron pipe forming according to claim 3, characterized in that: The outside of the wedge block (38) is in contact with the inner wall of the cooling clamp (34), and the front side of one of the driven columns (36) is fixedly connected to the inner wall of one of the clamp blocks (27).
8. A multi-segment cooling clamping device for forming water-cooled cast iron pipes according to claim 3, characterized in that: The bottom of the plurality of water inlet pipes (32) is fixedly connected to the top of one of the through pipes (31), and the bottom of the plurality of drain pipes (33) is fixedly connected to the top of another through pipe (31).