Cutting device for cement cast iron pipeline production

Abstract

This invention discloses a cutting device for cement cast iron pipe production, specifically relating to the field of pipe cutting technology. It includes a housing, with pipe clamping structures symmetrically arranged on the left and right sides of the bottom wall of the housing's inner cavity for supporting the cement cast iron pipe. A pipe cutting structure for cutting the cement cast iron pipe is located in the center of the housing's inner cavity. A clamping drive structure for driving the pipe cutting structure and the pipe clamping structure is located on the bottom wall of the electrical cabinet's inner cavity. This invention achieves synchronous driving of the cement cast iron pipe clamping and the cutting components through the cooperation of the clamping drive structure, the pipe clamping structure, and the pipe cutting structure, ensuring smooth connection between each process step. A hollow disc with a spiral guide groove cooperates with the double-sided cutting components to achieve progressive synchronous cutting of the pipe body, preventing the cement cast iron pipe from cracking and ensuring a smooth cut surface. A hydraulic push rod cooperates with the discharge hole to achieve smooth discharge of the finished pipe, improving the continuity of the device's operation.

Description

Technical Field

[0001] This invention relates to the field of pipe cutting technology, and in particular to a cutting device for the production of cement cast iron pipes. Background Technology

[0002] The field of cement cast iron pipe cutting technology encompasses various techniques, methods, and related equipment for cutting cement cast iron pipes during the production process. Its core content involves using various cutting methods to cut cement cast iron pipes into specified lengths and specifications according to production requirements, laying the foundation for subsequent processing, installation, and use of the cement cast iron pipes. This technical field covers the process design of cement cast iron pipe cutting, the structural design and application of cutting equipment, and operational specifications during the cutting process. It is widely used in the cement cast iron pipe manufacturing industry, involving multiple stages such as raw material processing and finished product forming. It is one of the indispensable key technical fields in the cement cast iron pipe production process, and its technical level directly affects the production efficiency and product specification accuracy of cement cast iron pipes.

[0003] Chinese Patent Publication No. CN118123100B discloses a cutting device for cast iron pipe production, including a housing mechanism. The housing mechanism includes a base, and a cutting mechanism is arranged on the upper rear side of the middle of the base. The cutting mechanism includes a cutting bracket, which is U-shaped and has its opening facing downward. The lower end of the cutting bracket is fixedly connected to the base. A first electric telescopic rod is embedded and fixedly connected to the middle of the upper beam of the cutting bracket. An arc platform is fixedly connected to the lower end of the first electric telescopic rod. A cutting wheel is fixedly connected to the lower surface of the arc platform. Ending mechanisms are symmetrically arranged on the upper left and right sides of the base. The ending mechanisms include a rotating mechanism and a clamping mechanism. The rotating mechanism includes a second pulley, and a central hole is opened through the middle of the surface of the second pulley. Electric rails are fixedly connected to the front and rear sides of the second pulley near the cutting mechanism.

[0004] Existing cutting techniques lack a progressive feed design, resulting in uneven stress on the tube during cutting, which can easily lead to cracking and uneven cross-sections. Summary of the Invention

[0005] The main objective of this invention is to provide a cutting device for cement cast iron pipe production, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A cutting device for producing cement cast iron pipes includes a housing, an electrical cabinet mounted on the upper part of the housing, a feed hole on one side of the housing, and discharge holes symmetrically located at the rear of the housing. The bottom wall of the housing cavity is symmetrically provided with pipe clamping structures for supporting the cement cast iron pipes. The middle of the housing cavity is provided with a pipe cutting structure for cutting the cement cast iron pipes. The front part of the housing cavity is symmetrically provided with hydraulic push rods for pushing the cement cast iron pipes. The bottom wall of the electrical cabinet cavity is provided with a clamping drive structure for driving the pipe cutting structure and the pipe clamping structure.

[0008] Preferably, the pipe clamping structure includes a turntable fixedly installed on the bottom wall of the inner cavity of the outer shell and driven by a motor. An arc-shaped plate is rotatably installed on the upper end of the turntable. A sliding rod driven by a clamping drive structure is slidably connected to the top wall of the inner cavity of the outer shell. A connecting plate is rotatably connected to the lower end of the sliding rod. Support plates are symmetrically fixedly connected to the left and right ends of the connecting plate. An arc-shaped plate is fixedly connected to the lower end of each of the two support plates. Rollers driven by a motor are rotatably connected to the inner arc surfaces of the arc plate and the arc plate.

[0009] Preferably, the clamping drive structure includes two electrically telescopic rods symmetrically fixedly installed on the bottom wall of the inner cavity of the electrical cabinet. The piston rods at the output ends of the two electrically telescopic rods are jointly fixedly connected to a second connecting plate. The lower end of the second connecting plate is fixedly connected to the upper end of an adjacent sliding rod. A pressure block for driving the pipe cutting structure is slidably connected to the middle of the lower end of the second connecting plate via a spring rod.

[0010] Preferably, the pipe cutting structure includes clamping drive boxes symmetrically fixedly installed in the inner cavity of the outer shell. The two clamping drive boxes are provided with a clamping and cutting assembly on the side close to each other. The bottom wall of the inner cavity of the electrical cabinet is symmetrically slidably connected with transmission rods for driving the clamping drive boxes. The bottom wall of the inner cavity of the electrical cabinet is provided with spring limit rods for resetting the transmission rods in a rectangular distribution.

[0011] Preferably, the inner cavity of the clamping drive box is symmetrically connected to the upper and lower sides of the clamping and cutting assembly. The two connecting rods are fixedly connected to the clamping and cutting assembly on the side near the clamping and cutting assembly. The two connecting rods are fixedly connected to a sliding plate on the side away from the clamping and cutting assembly. A limit block is fixedly connected to the side of the sliding plate away from the clamping and cutting assembly. The inner wall of the clamping drive box is symmetrically provided with limit grooves that are slidably connected to the outer surface of the limit block. The inner wall of the clamping drive box is rotatably connected to a swing rod. The outer surface of the limit block is slidably connected to the inner wall of the groove opened at the lower part of the outer surface of the swing rod.

[0012] Preferably, the lower end of the transmission rod is fixedly connected to a drive plate that is slidably connected to the top wall of the inner cavity of the outer shell, and the outer surface of the drive plate is provided with a left-right through oblique sliding groove, and the upper end of the swing rod slides in the oblique sliding groove.

[0013] Preferably, the clamping and cutting assembly includes hollow discs symmetrically distributed on the left and right, two hollow discs are fixedly connected to adjacent connecting rods respectively, and electric guide rails are symmetrically opened on the inner surfaces of the two hollow discs. Toothed grooves are opened on the inner surfaces of the two hollow discs, and two cutting components are slidably connected together by the inner walls of the hollow discs and the electric guide rails.

[0014] Preferably, two guide grooves are arranged in a ring on the inner wall of the hollow disk. The guide grooves are distributed on the inner walls of the two hollow disks and their paths are spirally distributed. The cutting component is slidably connected to the inner surface of the guide groove and gradually moves closer to the center of the hollow disk under the action of the guide groove.

[0015] Preferably, the cutting component includes a sliding block slidably connected to the inner surface of the hollow disk, a connecting block slidably connected to the inner surface of the sliding block, a gear driven by a motor rotatably connected to the inner wall of the connecting block, the gear meshing with a tooth groove, sliding columns symmetrically fixedly connected to the inner surface of the adjacent electric guide rail on one side of the connecting block near the inner wall of the hollow disk, connecting columns slidably connected to the inner wall of the adjacent guide groove on both ends of the sliding block near the inner wall of the hollow disk, and a cutting saw for cutting cement cast iron pipes fixedly installed on the side of the sliding block near the center of the hollow disk.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention achieves synchronous driving of cement cast iron pipe clamping and cutting component feeding through the cooperation of clamping drive structure, pipe clamping structure, and pipe cutting structure. This simplifies the device drive structure and ensures smooth connection of each process. The pipe clamping structure uses arc-shaped plates one and two, along with driven rollers, to achieve stable clamping and position adjustment of the pipe body. The hollow disc with spiral guide groove cooperates with the double-sided cutting components to achieve progressive synchronous cutting of the pipe body, avoiding cracking of the cement cast iron pipe and ensuring a flat cut surface. The hydraulic push rod cooperates with the discharge hole to achieve smooth discharge of the finished pipe and improve the continuity of device operation.

[0018] 2. This invention achieves synchronous control of the clamping and fixing of cement cast iron pipes and the cutting structure by coordinating the clamping drive structure and the pipe clamping structure, simplifying the drive logic of the device. The electric telescopic rod drives the connecting plate two to move synchronously, and the sliding rod drives the arc plate two to cooperate with the arc plate one to complete the stable radial clamping of the cement cast iron pipe. The rollers with drive inside the arc plate one and arc plate two realize the adjustment of the pipe position and the axial separation of the finished pipe section, avoiding the sticking and jamming of the cut. The turntable driven by the motor drives the clamped pipe to rotate circumferentially, adapting to different operation requirements. The pressure block connected by the spring rod realizes the step-by-step connection of the action, avoids rigid impact, and improves the stability and operation flexibility of the device.

[0019] 3. This invention achieves a stable conversion of vertical power to horizontal feed power by cooperating with the pressure block of the clamping drive structure and the transmission rod of the pipe cutting structure. The inclined sliding groove of the drive plate at the lower end of the transmission rod cooperates with the swing rod to drive the sliding plate and the connecting rod to move synchronously, achieving smooth feeding of the clamping and cutting components. The limiting groove and limiting block on the inner wall of the clamping drive box constrain the sliding stroke to prevent the clamping and cutting components from skewed displacement. The spring limiting rod drives the transmission rod to complete automatic reset, ensuring that the device's reset action is stable and orderly, improving the reliability of the device's transmission and the smoothness of continuous operation.

[0020] 4. This invention achieves progressive feed cutting of the cutting saw through the sliding cooperation of the guide groove and the connecting column. When the connecting column slides along the circumference of the hollow disk with the sliding block, it moves synchronously along the path of the guide groove spirally distributed on the inner wall of the hollow disk. This drives the cutting saw at the end of the sliding block to gradually feed radially towards the center of the cement cast iron pipe while cutting circumferentially. This reduces the feed depth of a single cut and avoids the problem of the cement cast iron pipe breaking and cracking due to its own brittleness under impact. With the synchronous operation of the symmetrical cutting components on both sides, the cutting force on the pipe body is balanced, ensuring a smooth and flat cut surface, reducing subsequent secondary processing steps, and improving the quality of the finished pipe cutting product. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a cross-sectional structural diagram of the outer casing of the present invention;

[0023] Figure 3 This is a schematic diagram of the pipe clamping structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the clamping drive structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the pipe cutting structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the clamping and cutting assembly of the present invention;

[0027] Figure 7 This is a cross-sectional structural diagram of the clamping and cutting assembly of the present invention;

[0028] Figure 8 This is a schematic diagram showing the positional relationship of the guide grooves in this invention;

[0029] Figure 9 For the present invention Figure 7 A magnified schematic diagram of the local structure at point A in the middle.

[0030] In the diagram: 1. Outer shell; 2. Electrical cabinet; 3. Feed port; 4. Pipe clamping structure; 41. Turntable; 42. Arc plate one; 43. Arc plate two; 44. Sliding rod; 45. Connecting plate one; 46. Support plate; 5. Pipe cutting structure; 51. Clamping drive box; 511. Sliding plate; 512. Limiting block; 513. Limiting groove; 514. Swing rod; 515. Drive plate; 516. Connecting rod; 52. Transmission rod; 521. Spring limit. Positioning rod; 53. Clamping and cutting assembly; 531. Hollow disc; 532. Electric guide rail; 533. Cutting component; 5331. Sliding block; 5332. Connecting block; 5333. Sliding column; 5334. Connecting column; 5335. Cutting saw; 5336. Gear; 534. Tooth groove; 535. Guide groove; 6. Clamping drive structure; 61. Connecting plate two; 62. Pressing block; 63. Electric telescopic rod; 7. Hydraulic push rod; 8. Discharge hole. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Example 1: A cutting device for cement cast iron pipe production, see reference. Figure 1 and Figure 2 The system includes an outer casing 1, an electrical cabinet 2 located at the upper end of the outer casing 1, a feed hole 3 on one side of the outer casing 1, and discharge holes 8 symmetrically located at the rear end of the outer casing 1. The bottom wall of the inner cavity of the outer casing 1 is symmetrically equipped with pipe clamping structures 4 for supporting cement cast iron pipes. The middle of the inner cavity of the outer casing 1 is equipped with a pipe cutting structure 5 for cutting cement cast iron pipes. The front of the inner cavity of the outer casing 1 is symmetrically equipped with hydraulic push rods 7 for pushing cement cast iron pipes. The bottom wall of the inner cavity of the electrical cabinet 2 is equipped with a clamping drive structure 6 for driving the pipe cutting structure 5 and the pipe clamping structure 4. The outer casing 1 serves as... The main load-bearing structure of the device provides an enclosed installation space and protection for all internal working parts, preventing the flying iron filings generated during the cutting process from affecting the external environment and operators. The electrical cabinet 2 is used to house the electrical control components and drive components of the device, providing power supply and motion control for the entire process of the device. The feed hole 3 serves as the channel for the cement cast iron pipe to be processed to enter the device, ensuring that the pipe can enter the work station smoothly. The discharge hole 8 serves as the channel for the finished cement cast iron pipe to be cut to exit the device, adapting to the operation requirements of simultaneous discharge from multiple work stations.

[0033] The pipe clamping structure 4 is used to support and radially clamp the cement cast iron pipe to be processed, ensuring that the cement cast iron pipe maintains a stable position during the cutting operation and preventing pipe displacement from affecting the normal progress of the cutting operation. The pipe cutting structure 5 is used to perform fixed-length cutting operations on the clamped and fixed cement cast iron pipe to complete the processing steps of the cement cast iron pipe. The hydraulic push rod 7 is used to push the main body of the cement cast iron pipe to be processed forward after the single section of pipe is cut, realizing continuous feeding of the pipe body and pushing of the finished pipe. The clamping drive structure 6 is used to synchronously drive the pipe cutting structure 5 and the pipe clamping structure 4 to complete the corresponding actions, realizing the synchronous operation of pipe body clamping and fixing and cutting component feeding, simplifying the drive logic of the device, and ensuring smooth connection of each process action.

[0034] In the operation of this embodiment, the clamping drive structure 6, in conjunction with the pipe clamping structure 4 and the pipe cutting structure 5, achieves synchronous driving of the clamping and fixing of the cement cast iron pipe and the feeding of the cutting components, simplifying the device drive structure and ensuring smooth connection of each process action. The arc plate 42 and arc plate 43 of the pipe clamping structure 4, in conjunction with the driven rollers, achieve stable clamping and position adjustment of the pipe body. The hollow disc 531 with spiral guide groove 535, in conjunction with the double-sided cutting components 533, achieves progressive synchronous cutting of the pipe body, avoids the cracking of the cement cast iron pipe, and ensures a flat cutting surface. The hydraulic push rod 7, in conjunction with the discharge hole 8, achieves smooth discharge of the finished pipe and improves the continuity of device operation.

[0035] Example 2: Based on Example 1, this example achieves synchronous control of the clamping and fixing of the cement cast iron pipe and the cutting structure drive by cooperating the clamping drive structure 6 and the pipe clamping structure 4, simplifying the drive logic of the device. The electric telescopic rod 63 drives the connecting plate 2 61 to move synchronously, and the sliding rod 44 drives the arc plate 2 43 and the arc plate 1 42 to complete the stable radial clamping of the cement cast iron pipe. The rollers with drive inside the arc plate 1 42 and the arc plate 2 43 realize the adjustment of the pipe position and the axial separation of the finished pipe section, avoiding the sticking and jamming of the cut. The turntable 41 driven by the motor drives the clamped pipe to rotate circumferentially, adapting to different operation requirements. The pressure block 62 connected by the spring rod realizes the step-by-step connection of the action, avoids rigid impact, and improves the stability and operation flexibility of the device.

[0036] For further details, please refer to [link / reference]. Figure 3 and Figure 4The pipe clamping structure 4 includes a turntable 41 fixedly installed on the bottom wall of the inner cavity of the outer shell 1 and driven by a motor. An arc-shaped plate 42 is rotatably installed on the upper end of the turntable 41. A sliding rod 44 driven by a clamping drive structure 6 is slidably connected to the top wall of the inner cavity of the outer shell 1. A connecting plate 45 is rotatably connected to the lower end of the sliding rod 44. Support plates 46 are symmetrically fixedly connected to the left and right ends of the connecting plate 45. An arc-shaped plate 43 is fixedly connected to the lower end of each of the two support plates 46. The inner arc surfaces of the arc-shaped plate 42 and the arc-shaped plate 43 are both rotatable. The rotating disc 41 is connected to rollers driven by a motor. Driven by its own motor, the disc rotates circumferentially, providing power for the clamped pipe. The arc-shaped plate 42 provides initial support for the cast iron pipe to be processed, offering stable bottom support for the pipe entering the device and adapting to the placement requirements of cast iron pipes of different diameters. The sliding rod 44, driven by the clamping drive structure 6, slides vertically up and down along the top wall of the inner cavity of the outer shell 1, providing vertical support for the clamping action. The feed power is directed to the connecting plate 45, which can move up and down synchronously with the sliding rod 44. It can also adapt to the rotation of the turntable 41 to complete the circumferential rotation, avoiding motion interference of the clamping structure. The support plate 46 is used to realize the fixed connection between the connecting plate 45 and the arc plate 43, ensuring that the arc plate 43 can move up and down synchronously with the connecting plate 45. After moving downward, the arc plate 43 can cooperate with the arc plate 42 to form a complete annular clamping space, completing the radial clamping and fixing of the cement cast iron pipe. The roller can rotate under the drive of its own drive motor. Through the contact friction between the roller and the outer wall of the cement cast iron pipe, the axial displacement and circumferential rotation adjustment of the cement cast iron pipe can be realized. At the same time, it can reduce the frictional resistance between the pipe body and the clamping structure during the pipe feeding process, ensuring the smoothness of pipe feeding and position adjustment. After the cutting is completed, the finished pipe section and the parent pipe body can be axially separated by the cooperation of the two sets of rollers, avoiding the sticking and jamming of the pipe section cut.

[0037] For further details, please refer to [link / reference]. Figure 4 and Figure 5The clamping drive structure 6 includes two symmetrically fixed electric telescopic rods 63 mounted on the bottom wall of the inner cavity of the electrical cabinet 2. The piston rods at the output ends of the two electric telescopic rods 63 are jointly and fixedly connected to a connecting plate 61. The lower end of the connecting plate 61 is fixedly connected to the upper end of an adjacent sliding rod 44. A pressure block 62 for driving the pipe cutting structure 5 is slidably connected to the middle of the lower end of the connecting plate 61 via a spring rod. The electric telescopic rods 63 are the core power output components of the clamping drive structure 6, providing vertical power for the clamping action and the feeding action of the cutting component. The connecting plate 61 can complete vertical up-and-down movement under the synchronous drive of the two electric telescopic rods 63, ensuring stable and synchronous power output. The connection plate 61 is fixed to the sliding rod 44. The connection allows the sliding rod 44 to slide up and down synchronously with the movement of the connecting plate 61, thereby driving and controlling the pipe clamping structure 4. The pressure block 62 can move up and down synchronously with the connecting plate 61. When moving downward, it can apply downward pressure to the corresponding component of the pipe cutting structure 5, thereby driving the pipe cutting structure 5. The spring rod allows the pressure block 62 to have a certain buffer stroke after contacting the pipe cutting structure 5, avoiding rigid impact between the clamping action and the cutting component's feeding action. At the same time, it can ensure that after the pipe clamping structure 4 completes the pipe clamping and fixing, the pressure block 62 can continue to move downward to complete the feeding and positioning of the cutting component, realizing the step-by-step connection between the clamping action and the cutting feeding action, and ensuring the orderly completion of the two actions.

[0038] In Example 3, based on Example 2, the clamping drive structure 6 uses the pressing block 62 of the clamping drive structure 6 to cooperate with the transmission rod 52 of the pipe cutting structure 5 to achieve a stable conversion of vertical power to horizontal feed power. The inclined sliding groove of the drive plate 515 at the lower end of the transmission rod 52 cooperates with the swing rod 514 to drive the sliding plate 511 and the connecting rod 516 to move synchronously, so as to achieve smooth feed of the clamping cutting component 53. The limiting groove 513 on the inner wall of the clamping drive box 51 cooperates with the limiting block 512 to constrain the sliding stroke and prevent the clamping cutting component 53 from deviating. The spring limiting rod 521 drives the transmission rod 52 to complete automatic reset, ensuring that the reset action of the device is stable and orderly, and improving the reliability of the device transmission and the smoothness of continuous operation.

[0039] For further details, please refer to [link / reference]. Figure 5The pipe cutting structure 5 includes clamping drive boxes 51 symmetrically fixedly installed in the inner cavity of the outer shell 1. A clamping cutting assembly 53 is commonly arranged on one side of the two clamping drive boxes 51 that are close to each other. A transmission rod 52 for driving the clamping drive boxes 51 is symmetrically slidably connected to the bottom wall of the inner cavity of the electrical cabinet 2. Spring limit rods 521 for resetting the transmission rods 52 are rectangularly distributed on the bottom wall of the inner cavity of the electrical cabinet 2. The clamping drive boxes 51 provide a mounting carrier for the transmission and limiting of the cutting assembly's feed action, ensuring the stable operation of the internal transmission components. The clamping cutting assembly 53 is used for cutting cement cast iron pipes and can be used in conjunction with the transmission action of the clamping drive boxes 51. The transmission rod 52, driven by the pressure block 62 of the clamping drive structure 6, slides vertically downward along the bottom wall of the inner cavity of the electrical cabinet 2 to provide power input to the transmission components inside the clamping drive box 51 after the pressure block 62 moves upward and releases the pressure. The spring limit rod 521 can drive the transmission rod 52 to slide upward back to the initial position through its own elasticity after the pressure block 62 moves upward and releases the pressure. This will drive the clamping cutting assembly 53 to exit the cutting station and complete the reset. At the same time, it can limit the sliding stroke of the transmission rod 52 to prevent the transmission rod 52 from sliding beyond its travel, thus ensuring the stable and orderly reset action of the device.

[0040] For further details, please refer to [link / reference]. Figure 5The clamping drive box 51 has two connecting rods 516 symmetrically slidably connected to the upper and lower sides of the clamping and cutting assembly 53 near the inner cavity of the clamping drive box 51. The two connecting rods 516 are fixedly connected to the clamping and cutting assembly 53 on the side near the clamping and cutting assembly 53, and a sliding plate 511 is fixedly connected to the side of the two connecting rods 516 away from the clamping and cutting assembly 53. A limit block 512 is fixedly connected to the side of the sliding plate 511 away from the clamping and cutting assembly 53. The inner wall of the clamping drive box 51 has symmetrically opened limit grooves 513 that slidably connect to the outer surface of the limit block 512. A swing rod 514 is rotatably connected to the inner wall of the clamping drive box 51. The outer surface of the limit block 512 is slidably connected to the inner wall of the groove opened at the lower part of the outer surface of the swing rod 514. The connecting rods 516 can slide horizontally left and right along the inner wall of the clamping drive box 51, providing transmission support for the feeding action of the clamping and cutting assembly 53. The fixed connection between the connecting rods 516 and the clamping and cutting assembly 53 enables the clamping and cutting assembly 53 to be clamped and cut. Component 53 can synchronously complete the horizontal feeding and retraction actions with the sliding of connecting rod 516. Sliding plate 511 can drive the two connecting rods 516 to slide synchronously, ensuring the consistency of the actions of the two connecting rods 516 and avoiding skewed displacement of clamping cutting component 53. Limiting block 512 can synchronously complete the horizontal sliding with sliding plate 511. Limiting groove 513 can constrain the sliding direction and sliding stroke of limiting block 512, ensuring that sliding plate 511 always slides in the horizontal direction and avoiding deviation of sliding plate 511. Swing rod 514 can complete the swing action along the connecting shaft between itself and the inner wall of clamping drive box 51, converting vertical power into horizontal feeding power. The sliding connection between limiting block 512 and the lower slide groove of swing rod 514 allows swing rod 514 to drive limiting block 512 and sliding plate 511 to complete the horizontal sliding during swing, realizing power transmission and direction conversion.

[0041] For further details, please refer to [link / reference]. Figure 5 The lower end of the transmission rod 52 is fixedly connected to a drive plate 515 that is slidably connected to the top wall of the inner cavity of the outer shell 1. The outer surface of the drive plate 515 is provided with a horizontally penetrating oblique sliding groove. The upper end of the swing rod 514 slides in the oblique sliding groove. The drive plate 515 can slide up and down with the transmission rod 52, and synchronously complete the vertical up and down movement along the top wall of the inner cavity of the outer shell 1, providing power input for the swing of the swing rod 514. The oblique sliding groove provides a sliding track for the upper end of the swing rod 514, which can convert the vertical movement of the drive plate 515 into a swing. The circumferential swing motion of the moving rod 514, with the upper end of the swing rod 514 slidingly engaged with the inclined slide groove, allows the drive plate 515 to apply a pushing force to the upper end of the swing rod 514 through the inner wall of the inclined slide groove when moving downward, thereby driving the swing rod 514 to complete the swing motion and thus realize the horizontal feeding motion of the clamping and cutting assembly 53. When the drive plate 515 moves upward to reset, it can drive the swing rod 514 to swing in the opposite direction through the inclined slide groove, thereby realizing the retraction and return of the clamping and cutting assembly 53, ensuring smooth power transmission and reversibility of the action.

[0042] In Example 4, based on Example 3, the sliding engagement of the guide groove 535 and the connecting column 5334 enables the progressive feed cutting of the cutting saw 5335. As the connecting column 5334 slides along the circumference of the hollow disk 531 with the sliding block 5331, it moves synchronously along the path of the guide groove 535 spirally distributed on the inner wall of the hollow disk 531. This drives the cutting saw 5335 at the end of the sliding block 5331 to gradually feed radially towards the center of the cement cast iron pipe while cutting circumferentially. This reduces the feed depth of a single cut, avoiding the problem of the cement cast iron pipe breaking due to its brittleness under impact. In conjunction with the synchronous operation of the symmetrical cutting components 533 on both sides, the cutting force on the pipe body is balanced, ensuring a smooth and flat cut surface, reducing subsequent secondary processing steps, and improving the quality of the finished pipe cutting product.

[0043] For further details, please refer to [link / reference]. Figure 6 and Figure 7 The clamping and cutting assembly 53 includes two symmetrically distributed hollow discs 531. Each hollow disc 531 is fixedly connected to an adjacent connecting rod 516. Electrical guide rails 532 are symmetrically formed on the inner surfaces of both hollow discs 531, and toothed grooves 534 are formed on their inner surfaces. Two cutting components 533 are slidably connected to the inner walls of the hollow discs 531 and the electrical guide rails 532. The hollow discs 531 provide a carrier for the installation and operation of the cutting components 533, adapting to the shape and structure of the cast iron pipe, allowing the cutting components 533 to complete circumferential cutting around the cast iron pipe. The fixed connection between the hollow discs 531 and the connecting rods 516 allows the hollow discs 531 to move synchronously towards or away from the cast iron pipe as the connecting rods 516 slide horizontally. The movement of the iron pipe ensures that the hollow disc 531 can be stably mounted on the outside of the cement cast iron pipe to be cut. The electric guide rail 532 can provide a continuous power supply to the cutting component 533, and at the same time provide guidance and constraint for the circumferential sliding of the cutting component 533. The toothed groove 534 can cooperate with the corresponding transmission component of the cutting component 533 to provide a basis for meshing transmission for the circumferential sliding of the cutting component 533. The cutting component 533 can complete the circumferential sliding along the inner surface of the hollow disc 531 to cut the cement cast iron pipe. The symmetrical arrangement of the two cutting components 533 can realize the simultaneous cutting of the cement cast iron pipe on both sides, reduce the feed depth of a single cut, avoid the problem of the cement cast iron pipe breaking and cracking due to its own brittleness, and ensure the flatness of the cut surface.

[0044] For further details, please refer to [link / reference]. Figure 8Two guide grooves 535 are arranged in a ring on the inner wall of the hollow disc 531. The guide grooves 535 are distributed on the inner wall of the two hollow discs 531 and their paths are spirally distributed. The cutting component 533 is slidably connected to the inner surface of the guide grooves 535 and gradually approaches the center of the hollow disc 531 under the action of the guide grooves 535. The guide grooves 535 provide guiding constraints for the radial feed of the cutting component 533. The spirally distributed path allows the cutting component 533 to complete the radial feed action simultaneously during the circumferential sliding process. The sliding cooperation between the guide grooves 535 and the cutting component 533 allows the cutting component 533 to complete the cutting operation along the spiral path, forming a progressive cut surface from shallow to deep. This avoids the impact of excessive single feed on the cement cast iron pipe, while ensuring the continuous operation of the cutting operation, reducing the vibration of the pipe body during the cutting process, ensuring the smoothness and flatness of the cut surface, and reducing the secondary processing steps after cutting.

[0045] For further details, please refer to [link / reference]. Figure 9The cutting component 533 includes a sliding block 5331 that is slidably connected to the inner surface of the hollow disk 531. A connecting block 5332 is slidably connected to the inner surface of the sliding block 5331. A gear 5336 driven by a motor is rotatably connected to the inner wall of the connecting block 5332. The gear 5336 meshes with a tooth groove 534. Sliding columns 5333 that are slidably connected to the inner surface of the adjacent electric guide rail 532 are symmetrically fixedly connected to the side of the connecting block 5332 near the inner wall of the hollow disk 531. Both ends of the sliding block 5331 near the inner wall of the hollow disk 531 are fixedly connected to... A connecting column 5334 is slidably connected to the inner wall of the adjacent guide groove 535. A cutting saw 5335 for cutting cement cast iron pipes is fixedly installed on the side of the sliding block 5331 near the center of the hollow disk 531. The sliding block 5331 can slide circumferentially along the inner surface of the hollow disk 531 and simultaneously feed radially, providing a bearing base for the cutting operation. The connecting block 5332 can slide circumferentially synchronously with the sliding block 5331 and can also slide relative to the radial feed action of the sliding block 5331, avoiding the transmission structure from slipping. The gear 5336, driven by its own motor, rotates to provide power for the circumferential sliding of the cutting component 533. The meshing transmission between the gear 5336 and the tooth groove 534 allows the gear 5336 to drive the connecting block 5332 and the sliding block 5331 to slide circumferentially along the inner surface of the hollow disk 531. The sliding column 5333 can slide circumferentially along the electric guide rail 532 synchronously with the connecting block 5332. Through the contact and engagement between the sliding column 5333 and the electric guide rail 532, power is provided to the drive motor of the cutting component 533. A continuous and stable power supply avoids power outages during the cutting process, ensuring the continuous operation of the cutting work. The connecting column 5334 can slide circumferentially with the sliding block 5331, and slide along the path of the guide groove 535. This causes the sliding block 5331 to gradually move closer to the center of the hollow disc 531 while sliding circumferentially, realizing the radial feed of the cutting operation. The cutting saw 5335 can synchronously complete the circumferential sliding and radial feed with the sliding block 5331 to complete the cutting operation on the cement cast iron pipe, ensuring the stable execution of the cutting action.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for cement cast iron pipe production, comprising a housing (1), an electrical cabinet (2) disposed on the upper end of the housing (1), a feed hole (3) opened on one side of the housing (1), and discharge holes (8) symmetrically opened on the left and right sides of the rear end of the housing (1), characterized in that: The bottom wall of the inner cavity of the outer shell (1) is symmetrically provided with pipe clamping structures (4) for supporting cement cast iron pipes. The middle of the inner cavity of the outer shell (1) is provided with pipe cutting structures (5) for cutting cement cast iron pipes. The front part of the inner cavity of the outer shell (1) is symmetrically provided with hydraulic push rods (7) for pushing cement cast iron pipes. The bottom wall of the inner cavity of the electrical cabinet (2) is provided with clamping drive structures (6) for driving pipe cutting structures (5) and pipe clamping structures (4).

2. The cutting device for cement cast iron pipe production according to claim 1, characterized in that: The pipe clamping structure (4) includes a turntable (41) fixedly installed on the bottom wall of the inner cavity of the outer shell (1) and driven by a motor. An arc plate (42) is rotatably installed on the upper end of the turntable (41). A sliding rod (44) driven by a clamping drive structure (6) is slidably connected to the top wall of the inner cavity of the outer shell (1). A connecting plate (45) is rotatably connected to the lower end of the sliding rod (44). Support plates (46) are symmetrically fixedly connected to the left and right ends of the connecting plate (45). An arc plate (43) is fixedly connected to the lower end of both support plates (46). Rollers driven by a motor are rotatably connected to the inner arc surfaces of the arc plate (42) and the arc plate (43).

3. The cutting device for cement cast iron pipe production according to claim 2, characterized in that: The clamping drive structure (6) includes electric telescopic rods (63) that are symmetrically fixedly installed on the bottom wall of the inner cavity of the electrical cabinet (2). The piston rods at the output ends of the two electric telescopic rods (63) are fixedly connected to a connecting plate two (61). The lower end of the connecting plate two (61) is fixedly connected to the upper end of the adjacent sliding rod (44). The middle part of the lower end of the connecting plate two (61) is slidably connected to a pressure block (62) for driving the pipe cutting structure (5) through a spring rod.

4. The cutting device for cement cast iron pipe production according to claim 3, characterized in that: The pipe cutting structure (5) includes clamping drive boxes (51) that are symmetrically fixedly installed in the inner cavity of the outer shell (1). The two clamping drive boxes (51) are provided with a clamping cutting assembly (53) on the side close to each other. The bottom wall of the inner cavity of the electrical cabinet (2) is symmetrically slidably connected with a transmission rod (52) for driving the clamping drive box (51). The bottom wall of the inner cavity of the electrical cabinet (2) is provided with a rectangular distribution of spring limit rods (521) for resetting the transmission rod (52).

5. The cutting device for cement cast iron pipe production according to claim 4, characterized in that: The clamping drive box (51) has connecting rods (516) symmetrically slidably connected to the upper and lower sides of the inner cavity near the clamping and cutting assembly (53). The two connecting rods (516) are fixedly connected to the clamping and cutting assembly (53) on the side near the clamping and cutting assembly (53). The two connecting rods (516) are fixedly connected to a sliding plate (511) on the side away from the clamping and cutting assembly (53). The sliding plate (511) is fixedly connected to a limiting block (512) on the side away from the clamping and cutting assembly (53). The clamping drive box (51) has symmetrically opened limiting grooves (513) on the left and right sides that are slidably connected to the outer surface of the limiting block (512). The clamping drive box (51) has a swing rod (514) rotatably connected to the inner wall of the swing rod (514). The outer surface of the limiting block (512) is slidably connected to the inner wall of the groove opened at the lower part of the outer surface of the swing rod (514).

6. The cutting device for cement cast iron pipe production according to claim 5, characterized in that: The lower end of the transmission rod (52) is fixedly connected to a drive plate (515) that is slidably connected to the top wall of the inner cavity of the outer shell (1). The outer surface of the drive plate (515) is provided with a left-right through oblique sliding groove, and the upper end of the swing rod (514) slides in the oblique sliding groove.

7. The cutting device for cement cast iron pipe production according to claim 4, characterized in that: The clamping and cutting assembly (53) includes hollow disks (531) symmetrically distributed on the left and right. The two hollow disks (531) are fixedly connected to adjacent connecting rods (516) respectively. The inner surfaces of the two hollow disks (531) are symmetrically provided with electric guide rails (532) and toothed grooves (534) are provided on the inner surfaces of the two hollow disks (531). The inner walls of the hollow disks (531) and the electric guide rails (532) are slidably connected to two cutting components (533).

8. The cutting device for cement cast iron pipe production according to claim 7, characterized in that: Two guide grooves (535) are arranged in a ring on the inner wall of the hollow disk (531). The guide grooves (535) are distributed on the inner wall of the two hollow disks (531) and their paths are spirally distributed. The cutting component (533) is slidably connected to the inner surface of the guide groove (535) and gradually moves closer to the center of the hollow disk (531) under the action of the guide groove (535).

9. The cutting device for cement cast iron pipe production according to claim 8, characterized in that: The cutting component (533) includes a sliding block (5331) that is slidably connected to the inner surface of the hollow disk (531). A connecting block (5332) is slidably connected to the inner surface of the sliding block (5331). A gear (5336) driven by a motor is rotatably connected to the inner wall of the connecting block (5332). The gear (5336) meshes with a tooth groove (534). A sliding column (5333) that is slidably connected to the inner surface of the adjacent electric guide rail (532) is symmetrically fixed on one side of the connecting block (5332) near the inner wall of the hollow disk (531). A connecting column (5334) that is slidably connected to the inner wall of the adjacent guide groove (535) is fixedly connected to both ends of the sliding block (5331) near the inner wall of the hollow disk (531). A cutting saw (5335) for cutting cement cast iron pipe is fixedly installed on the side of the sliding block (5331) near the center of the hollow disk (531).

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