A cast pipe crimping device

Abstract

The utility model relates to a kind of cast pipe hemming devices, including control mechanism (4), connecting mechanism (2), base (1) and the polishing mechanism (3) connected on base (1), the connecting mechanism (2) one end is connected with control mechanism (4), the connecting mechanism (2) other end is connected with base (1), the control mechanism (4) is connected with polishing mechanism (3).The utility model polishing mechanism (3) includes squeegee (31), and simple structure is low in manufacturing cost;Control structure (4) uses the extension of pneumatic cylinder (41) to control the position of squeegee (31).The utility model whole simple structure is widely applicable, and the utility model compared with artificial knock and beat hemming not only can save manual labor, but also can improve production efficiency and improve product quality.

Description

Technical Field

[0001] This utility model belongs to the field of cast pipe processing technology. Specifically, this utility model relates to a device for edge-rolling cast pipes. Background Technology

[0002] Currently, after centrifugal casting, a portion of the spigot edge is rolled after molding. When it is transferred to the lining process, this edge needs to be manually cleaned by striking it with a hammer. However, centrifugal ductile iron pipes are extremely difficult to clean after annealing, requiring manual hammering, which is time-consuming and labor-intensive. The frequent and repetitive hammering not only causes employee complaints but also affects production efficiency and safety. Furthermore, market requirements for lining quality are becoming increasingly stringent, necessitating an optimization of the spigot edge cleaning process before lining.

[0003] According to the applicant's search, a grinding device for ductile iron pipe sockets, disclosed on April 20, 2021, with application number CN202021841122.0, is described. This grinding device includes a working platform, a grinding mechanism, and a pipe support structure. The grinding mechanism includes a connecting rod, within which a drive shaft is fitted. The grinding head is connected to a motor via the drive shaft. A support column is slidably connected to the working platform, and the support column is slidably connected to the connecting rod. A lifting device, fixedly connected to the connecting rod, is installed inside the support column. The pipe support structure includes a support frame for horizontally supporting the pipe, and the support frame is connected to a positioning screw. An open receiving groove is provided on the working platform. Although this utility model has high grinding efficiency, its overall structure is complex and its manufacturing cost is high. Utility Model Content

[0004] This utility model was developed to solve the above-mentioned problems, and its purpose is to provide a simple structure that can improve production efficiency for grinding and casting tube edge rolling. To achieve the above objective, the technical solution adopted by this utility model is as follows: A grinding and casting tube edge-rolling device includes a control mechanism, a connecting mechanism, a base, and a grinding mechanism connected to the base. One end of the connecting mechanism is connected to the control mechanism, and the other end of the connecting mechanism is connected to the base. The control mechanism is connected to the grinding mechanism.

[0005] The base includes a base body and a vertical plate connected to the upper surface of the base body.

[0006] The control mechanism includes a cylinder and a connecting rod. The cylinder includes a cylinder barrel and a piston rod extending from one end of the cylinder barrel. The cylinder barrel has an upper end cap and a lower end cap at both ends, and the connecting rod is connected to the piston rod.

[0007] The grinding mechanism includes mounting bolts, clamping plates, and a scraper disposed between the clamping plates. The clamping plates are connected to the base body. The clamping plates are provided with a first mounting hole. The scraper is provided with a second mounting hole at one end near the clamping plate. The mounting bolt passes through the first mounting hole and the second mounting hole and is clearance-fitted with the first mounting hole and the second mounting hole, respectively. The mounting bolt is provided with a mounting nut at one end away from the bolt head. The scraper is provided with a through hole at one end away from the clamping plate, and the connecting rod passes through the through hole.

[0008] The connecting mechanism includes a connecting bolt, a first connecting plate, and a second connecting plate disposed on one side of the first connecting plate. The first connecting plate has a first connecting hole, and the second connecting plate has a second connecting hole. The first connecting plate is connected to the vertical plate, and the second connecting plate is connected to the upper end cover. The connecting bolt passes through the first connecting hole and the second connecting hole, and the connecting bolt is clearance-fitted with the first connecting hole and the second connecting hole respectively. A connecting nut is disposed at the end away from the bolt head of the connecting bolt.

[0009] A reinforcing rib is provided between the vertical plate and the base body. One side of the reinforcing rib is connected to the vertical plate, and the other side of the reinforcing rib is connected to the base body.

[0010] The scraper is quadrilateral.

[0011] The clamping plate is a rectangular plate.

[0012] The base body is shaped like the letter II.

[0013] The first connecting plate includes a first rectangular block, one end of which extends into a first arc-shaped plate; the second connecting plate includes a second rectangular block, one end of which extends into a second arc-shaped plate.

[0014] The technical advantages of this utility model are as follows: This utility model includes a control mechanism, a connecting mechanism, a base, and a grinding mechanism connected to the base. One end of the connecting mechanism is connected to the control mechanism, and the other end is connected to the base. The control mechanism is connected to the grinding mechanism. The grinding mechanism of this utility model uses a scraper, which has a simple structure and low manufacturing cost. The control structure uses the extension and retraction of a cylinder to control the position of the scraper. This utility model has a simple overall structure and a wide range of applications. Compared with manual hammering and rolling, this utility model can save labor, not only improving production efficiency but also product quality. Attached Figure Description

[0015] This manual includes the following figures, which illustrate the following: Figure 1 This is a front view of a grinding and casting tube edge-rolling device according to this utility model; Figure 2 This is a schematic diagram of the overall structure of a grinding and casting tube edge-rolling device according to this utility model; Figure 3 This is a schematic diagram of the overall structure of a grinding and casting tube edge-rolling device according to this utility model; Figure 4 This is a schematic diagram of the scraper of a grinding and casting tube edge-rolling device according to this utility model; Figure 5 This is a schematic diagram of the connection mechanism of a mill-cast tube edge-rolling device according to this utility model; Figure 6 This is a schematic diagram of the clamping plate of a grinding and casting tube edge-rolling device according to this utility model; Figure 7 This is a schematic diagram of a cast pipe for a grinding and casting pipe edge-rolling device according to the present invention; The diagram is marked as follows: 1. Base; 11. Base body; 12. Vertical plate; 13. Reinforcing rib; 2. Connecting mechanism; 21. First connecting plate; 211. First connecting hole; 212. First rectangular block; 213. First arc plate; 22. Second connecting plate; 221. Second connecting hole; 222. Second rectangular block; 223. Second arc plate; 23. Connecting bolt; 24. Connecting nut; 3. Grinding mechanism; 31. Scraper; 311. Second mounting hole; 312. Through hole; 32. Clamping plate; 321. First mounting hole; 33. Mounting bolt; 34. Mounting nut; 4. Control mechanism; 41. Cylinder; 411. Cylinder barrel; 412. Piston rod; 413. Upper end cover; 414. Lower end cover; 42. Connecting rod; 5. Inner wall of cast pipe. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0017] like Figure 1 As shown, a grinding and casting tube edge-rolling device includes a control mechanism 4, a connecting mechanism 2, a base 1, and a grinding mechanism 3 connected to the base 1. One end of the connecting mechanism 2 is connected to the control mechanism 4, and the other end is connected to the base 1. The control mechanism 4 is connected to the grinding mechanism 3. This invention features a simple overall structure, low production cost for each component, and easy maintenance and replacement of parts. This invention is cheaper than existing fully automatic grinding machines and, compared to traditional manual grinding, not only saves manpower but also improves production efficiency and quality.

[0018] like Figure 1As shown, the base 1 includes a base body 11 and a vertical plate 12 connected to the upper surface of the base body 11. The rectangular vertical plate 12 on the base 1 facilitates the installation of components. The overall structure is simple and can be well adapted to the working environment in the factory. The use of a large plate on the base 1 increases the weight of the base 1, improves the stability of the overall structure during the grinding process, and enhances the grinding effect.

[0019] like Figure 1 As shown, the control mechanism 4 includes a cylinder 41 and a connecting rod 42. The cylinder 41 includes a cylinder barrel 411 and a piston rod 412 extending from one end of the cylinder barrel 411. An upper end cap 413 and a lower end cap 414 are respectively provided at both ends of the cylinder barrel 411. The connecting rod 42 is connected to the piston rod 412. The control mechanism 4, composed of the cylinder 41 and the connecting rod 42, has a simple overall structure. The connecting rod 42 can transmit the movement of the cylinder 41 to the grinding mechanism 3. The upper end cap 413 and the lower end cap 414 at both ends of the cylinder barrel 411 not only increase the overall strength of the cylinder 41 but also provide connection points for the connecting mechanism 2. The connecting rod 42 is a long cylindrical rod, which has a simple structure and is easy to manufacture.

[0020] like Figure 1 , Figure 3 and Figure 6 As shown, the grinding mechanism 3 includes mounting bolts 33, clamping plates 32, and a scraper 31 disposed between the clamping plates 32. The clamping plates 32 are connected to the base body 11. The clamping plates 32 have a first mounting hole 321, and the scraper 31 has a second mounting hole 311 at one end near the clamping plates 32. The mounting bolts 33 pass through the first mounting hole 321 and the second mounting hole 311, respectively, with clearance fit. The end of the mounting bolts 33 away from the bolt head has a mounting nut 34, and the end of the scraper 31 away from the clamping plates 32 has a through hole 312, through which a connecting rod 42 passes. The two clamping plates 32 clamp the scraper 31 in the middle, and the clamping plates 32 and the scraper 31 are connected by the mounting bolts 33. The clearance fit between the first mounting hole 321 and the second mounting hole 311 and the mounting bolts 33 ensures that the scraper 31 can rotate around the mounting bolts 33 and also ensures the installation strength of the scraper 31.

[0021] like Figure 1 , Figure 3 and Figure 5As shown, the connecting mechanism 2 includes a connecting bolt 23, a first connecting plate 21, and a second connecting plate 22 located on one side of the first connecting plate 21. The first connecting plate 21 has a first connecting hole 211, and the second connecting plate 22 has a second connecting hole 221. The first connecting plate 21 is connected to the vertical plate 12, and the second connecting plate 22 is connected to the upper end cover 413. The connecting bolt 23 passes through the first connecting hole 211 and the second connecting hole 221, respectively, and is clearance-fitted with the first connecting hole 211 and the second connecting hole 221. A connecting nut 24 is provided at the end away from the bolt head of the connecting bolt 23. The connecting mechanism 2 has a simple structure. The first connecting hole 211 and the second connecting hole 221 are clearance-fitted with the connecting bolt 23. When the cylinder 41 extends or retracts, the first connecting plate 21 and the second connecting plate 22 can rotate relative to each other around the connecting bolt 23. The overall structure of the connecting mechanism 2 is simple and reliable.

[0022] like Figure 1 As shown, a reinforcing rib 13 is provided between the vertical plate 12 and the base body 11. One side of the reinforcing rib 13 is connected to the vertical plate 12, and the other side of the reinforcing rib 13 is connected to the base body 11. The reinforcing rib 13 is trapezoidal. The reinforcing rib 13 can improve the strength of the overall structure. When grinding the inner wall 5 of the cast pipe, this utility model will vibrate. The reinforcing rib 13 can improve the overall strength and prevent the vertical plate 12 from breaking.

[0023] like Figure 1 As shown, the scraper 31 is quadrilateral. The scraper 31 can be made of parallelogram. When the scraper 31 rotates, the parallelogram shape can increase the rotation angle of the scraper 31 and allow the scraper 31 to penetrate deeper.

[0024] like Figure 1 and Figure 6 As shown, the clamping plate 32 is a rectangular plate. The use of a rectangular plate for the clamping plate 32 facilitates manufacturing.

[0025] like Figure 1 As shown, the base body 11 is in the shape of an "II". The "II" shape of the base body 11 can increase the overall strength and the overall structural reliability.

[0026] like Figure 1 and Figure 5 As shown, the first connecting plate 21 includes a first rectangular block 212, one end of which extends into a first arc-shaped plate 213. The second connecting plate 22 includes a second rectangular block 221, one end of which extends into a second arc-shaped plate 223. The design of the first arc-shaped plate 213 and the second arc-shaped plate 223 facilitates the relative rotation of the first connecting plate 21 and the second connecting plate 22 during the extension and retraction of the cylinder 41, preventing the first connecting plate 21 from colliding with the upper end cover 413.

[0027] This utility model discloses a grinding and rolling device for cast pipes, comprising a control mechanism 4, a connecting mechanism 2, a base 1, and a grinding mechanism 3 connected to the base 1. One end of the connecting mechanism 2 is connected to the control mechanism 4, and the other end is connected to the base 1. The control mechanism 4 is connected to the grinding mechanism 3. When using this utility model, the installation position is determined based on the vertical spacing and length of the track on the site. When the cast pipe is in the rounding rotation position, the cast pipe will automatically rotate. At this time, the cylinder 41 will extend the piston rod 412. When the scraper 31 is at the lower edge of the inner wall 5 of the cast pipe, the scraper 31 will begin grinding the inner rolled edge of the cast pipe. After the scraper 31 finishes grinding, the cylinder 41 will retract the piston rod 412, driving the scraper 31 away from the inner wall 5 of the cast pipe to complete the grinding. This utility model has a simple overall structure and can be combined with offline equipment to grind the inner rolled edge of the cast pipe, which not only frees up workers' labor but also improves overall production efficiency and quality. This utility model has low manufacturing cost, high overall structural strength, and simple maintenance, making it suitable for widespread use in the industry.

[0028] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A device for edge-rolling cast tubes, characterized in that, It includes a control mechanism (4), a connecting mechanism (2), a base (1) and a polishing mechanism (3) connected to the base (1). One end of the connecting mechanism (2) is connected to the control mechanism (4), and the other end of the connecting mechanism (2) is connected to the base (1). The control mechanism (4) is connected to the polishing mechanism (3).

2. The edge-rolling device for a mill-cast tube according to claim 1, characterized in that, The base (1) includes a base body (11) and a vertical plate (12) connected to the upper surface of the base body (11).

3. The edge-rolling device for a mill-cast tube according to claim 2, characterized in that, The control mechanism (4) includes a cylinder (41) and a connecting rod (42). The cylinder (41) includes a cylinder barrel (411) and a piston rod (412) extending from one end of the cylinder barrel (411). The cylinder barrel (411) has an upper end cap (413) and a lower end cap (414) at both ends. The connecting rod (42) is connected to the piston rod (412).

4. The edge-rolling device for a mill-cast tube according to claim 3, characterized in that, The grinding mechanism (3) includes mounting bolts (33), clamping plates (32), and scraper (31) disposed between the clamping plates (32). The clamping plates (32) are connected to the base body (11). The clamping plates (32) are provided with a first mounting hole (321). The scraper (31) is provided with a second mounting hole (311) at one end near the clamping plates (32). The mounting bolts (33) pass through the first mounting hole (321) and the second mounting hole (311). The mounting bolts (33) are respectively clearance-fitted with the first mounting hole (321) and the second mounting hole (311). The mounting bolts (33) are provided with a mounting nut (34) at one end away from the bolt head. The scraper (31) is provided with a through hole (312) at one end away from the clamping plates (32). The connecting rod (42) passes through the through hole (312).

5. The edge-rolling device for a mill-cast tube according to claim 4, characterized in that, The connecting mechanism (2) includes a connecting bolt (23), a first connecting plate (21), and a second connecting plate (22) provided on one side of the first connecting plate (21). The first connecting plate (21) has a first connecting hole (211), and the second connecting plate (22) has a second connecting hole (221). The first connecting plate (21) is connected to the vertical plate (12), and the second connecting plate (22) is connected to the upper end cover (413). The connecting bolt (23) passes through the first connecting hole (211) and the second connecting hole (221). The connecting bolt (23) is clearance-fitted with the first connecting hole (211) and the second connecting hole (221) respectively. A connecting nut (24) is provided at the end away from the bolt head of the connecting bolt (23).

6. The edge-rolling device for a mill-cast tube according to claim 2, characterized in that, A reinforcing rib (13) is provided between the vertical plate (12) and the base body (11). One side of the reinforcing rib (13) is connected to the vertical plate (12), and the other side of the reinforcing rib (13) is connected to the base body (11).

7. The edge-rolling device for a mill-cast tube according to claim 4, characterized in that, The scraper (31) is quadrilateral.

8. The edge-rolling device for a mill-cast tube according to claim 4, characterized in that, The clamp (32) is a rectangular plate.

9. The edge-rolling device for a mill-cast tube according to claim 2, characterized in that, The base body (11) is in the shape of the letter II.

10. A mill-cast tube edge-rolling device according to claim 5, characterized in that, The first connecting plate (21) includes a first rectangular block (212), one end of which extends into a first arc plate (213). The second connecting plate (22) includes a second rectangular block (222), one end of which extends into a second arc plate (223).

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