Anti-deflection cutting equipment for MPP pipes

Abstract

The utility model relates to the technical field of cutting equipment, in particular to anti-deflection cutting equipment for MPP pipes, which comprises a workbench, an anti-deflection positioning part is arranged at the top of the workbench, an L-shaped support is arranged on the rear side of the top of the workbench, a hydraulic cylinder is arranged at the top of the L-shaped support, and a movable rod of the hydraulic cylinder penetrates through the top of the L-shaped support and is fixedly connected with a lifting plate. A cutting part is rotationally connected to the position, close to the front end, of the bottom of the lifting plate, and an angle adjusting part is arranged at the top of the lifting plate. According to the anti-deflection cutting equipment for the MPP pipes, the strip-shaped movable plate is driven by the single threaded rod to be in linkage with the V-shaped pressing plates on the two sides, single-point operation and synchronous control over clamping force are achieved, the problem that traditional double threaded rods need synchronous operation is solved, the operation complexity is remarkably reduced, meanwhile, the vertical clamping design of the V-shaped supporting plate and the V-shaped pressing plates is combined, and the clamping force is greatly improved. The MPP pipes are fixed in a surrounding mode, and the pipes are effectively prevented from rolling or deviating in the cutting process.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment technology, specifically to an anti-skew cutting device for MPP pipes. Background Technology

[0002] MPP pipes, or modified polypropylene pipes, are primarily used in the power industry, particularly for cable protection and the installation of power facilities. Their excellent mechanical properties and chemical resistance allow MPP pipes to operate stably for extended periods in high-temperature, high-pressure, and other harsh environments, ensuring the safety and reliability of power systems. MPP pipes are commonly used for cable laying and protection, effectively preventing damage to cables from the external environment and extending their service life. Furthermore, the lightweight nature of MPP pipes simplifies installation, reducing labor intensity and construction time, while their good fluid transport properties also aid in cable heat dissipation management. The material's UV resistance makes it excellent for outdoor applications, preventing material aging and performance degradation caused by UV radiation. Therefore, MPP pipes are widely used in the maintenance and construction of power facilities, including substations, distribution boxes, and other power infrastructure. Precise cutting is crucial in the production and processing of MPP pipes to ensure that the pipe length and cut quality meet standards, requiring the use of specialized cutting equipment. Improving the stability and flexibility of cutting equipment not only enhances processing accuracy but also optimizes the overall performance of power equipment, ensuring the efficient and safe operation of the power system.

[0003] Patent CN222370513U discloses a pipe cutting device, including an operating table and a base. An L-shaped plate is fixedly connected to the outer side of the operating table. A threaded pressure rod is provided inside the L-shaped plate. A turntable is connected to one side of the threaded pressure rod, and a clamping plate is provided on the other side of the turntable. A spring is fixedly connected to the top of the L-shaped plate, and a top plate is provided on the top of the spring. The top plate is connected by a horizontal plate. This pipe cutting device, by installing a threaded pressure rod, clamping plate, spring, and horizontal plate on the top of the operating table, provides better clamping during use. First, the threaded pressure rod is turned in the opposite direction. Then, the pipe is placed on the top of the operating table, and the threaded pressure rod is turned again to cause the clamping plate to clamp the pipe from both sides, pressing the horizontal plate tightly against the top of the pipe. When the pipe needs to be cut, the clamping plate and the horizontal plate provide double support, resulting in a more stable clamping effect during cutting.

[0004] The existing technology described above, in practical use, involves tightening threaded pressure rods to drive clamping plates that grip the pipe from both sides, and then pressing a horizontal plate against the top of the pipe to fix its position and prevent skewing during cutting. However, each clamping plate requires two threaded pressure rods to drive it, meaning both rods must rotate synchronously to move the clamping plate. This places high demands on the operator, increasing complexity and inconvenience. Secondly, when using a hydraulic device to drive a hydraulic telescopic rod for pipe cutting, its rigid cutting characteristic can easily lead to pipe breakage, and the cutting angle cannot be flexibly adjusted, making it difficult for users to perform bevel cutting. Therefore, to address these issues, we propose an anti-skewing cutting device for MPP pipes, aiming to improve cutting stability and flexibility, ensure the pipe's position is fixed during cutting, avoid skewing, and thus improve the pipe's processing accuracy and performance. Utility Model Content

[0005] The purpose of this invention is to provide an anti-skew cutting device for MPP pipes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An anti-skew cutting device for MPP pipes includes a worktable that provides a stable base for the cutting operation. The top of the worktable is equipped with an anti-skew positioning component, which uses a bidirectional clamping mechanism to fix the MPP pipe and prevent it from rolling or shifting during cutting. The anti-skew positioning component includes two symmetrically arranged U-shaped fixing plates. These U-shaped fixing plates provide rigid support for the clamping mechanism and adapt to the processing requirements of MPP pipes of different diameters. A V-shaped support plate is located at the bottom of the inner wall of each U-shaped fixing plate. The V-shaped support plate, through its concave structure, conforms to the outer wall of the MPP pipe, dispersing the pressure generated during cutting. The two U-shaped... A connecting horizontal plate is provided between the fixed plates. The connecting horizontal plate enhances the structural stability of the U-shaped fixed plate and provides an installation position for the threaded rod. The threaded rod is threadedly connected to the middle of the top of the connecting horizontal plate. The threaded rod drives the strip movable plate to rise and fall by rotation, realizing single-point operation and synchronous control of the clamping force on both sides. The bottom end of the threaded rod is rotatably connected to the strip movable plate. The strip movable plate converts the rotational motion of the threaded rod into vertical lifting and lowering, driving the V-shaped pressure plate to press the MPP pipe. The bottom left and right ends of the strip movable plate are provided with V-shaped pressure plates. The V-shaped pressure plates cooperate with the V-shaped support plate to form a clamping of the MPP pipe and prevent skewing during cutting.

[0008] An L-shaped bracket is provided on the rear side of the top of the workbench, near the right end. The L-shaped bracket provides vertical support for the cutting mechanism, ensuring that the cutting direction is perpendicular to the axis of the MPP pipe. A hydraulic cylinder is provided on the top of the L-shaped bracket, connected to an external hydraulic drive system. The hydraulic cylinder drives the lifting plate to rise and fall smoothly through hydraulic power. The movable rod of the hydraulic cylinder passes through the top of the L-shaped bracket and is fixedly connected to the lifting plate. The lifting plate serves as a support platform for the cutting parts and angle adjustment parts, controlling the cutting depth of the cutter.

[0009] A cutting component is rotatably connected to the bottom and near the front end of the lifting plate. The cutting component reduces the hard impact on the MPP pipe through rotational cutting, preventing the cut from breaking. The cutting component includes a rotating plate, which is linked with an angle adjustment component to adjust the tilt angle of the cutter. A mounting plate is provided at the bottom of the rotating plate, and a motor is provided on the right side of the mounting plate. The motor is powered by an external power source. The output shaft of the motor passes through the right side of the mounting plate and is coaxially connected to the cutter. The motor drives the cutter to rotate at high speed, improving the cutting efficiency of the MPP pipe. An angle adjustment component is provided at the top of the lifting plate to drive the rotation of the rotating plate. The angle adjustment component controls the cutting angle to meet the requirements of bevel cutting of MPP pipe.

[0010] Preferably, the top of the workbench is provided with a chip discharge port, which is located directly below the cut piece, for discharging the chips generated during the cutting of MPP pipes and keeping the processing area clean.

[0011] Preferably, the V-shaped pressure plate is located directly above the V-shaped support plate, the concave surface of the V-shaped support plate is bonded with a first rubber pad, and the concave surface of the V-shaped pressure plate is bonded with a second rubber pad, which increases the friction with the MPP pipe and protects the surface of the pipe, preventing indentations from forming on the outer wall of the MPP pipe due to rigid contact.

[0012] Preferably, the top of the strip-shaped movable plate and near the left and right ends are provided with positioning vertical rods. The top ends of the two positioning vertical rods pass through the top of the inner wall of the two U-shaped fixed plates to the outside, restricting the movement trajectory of the strip-shaped movable plate and making the strip-shaped movable plate move up and down stably.

[0013] Preferably, a fixed vertical rod is provided at the top and near the rear of the inner wall of the L-shaped bracket, and the lifting plate is slidably connected to the outside of the fixed vertical rod to guide the vertical movement of the cutting piece and prevent the cut from tilting due to the offset of the cutter when cutting the MPP pipe.

[0014] Preferably, the angle adjustment component includes a rectangular cover fixedly connected to the top of the lifting plate. The rectangular cover encloses a worm gear and a worm to prevent debris from interfering with the transmission accuracy. The top of the inner wall of the rectangular cover is rotatably connected to the worm gear. The bottom end of the worm gear shaft is coaxially connected to the top end of the rotating plate shaft. The angle adjustment enables the cutter to cut the MPP pipe at an angle.

[0015] Preferably, a worm gear is rotatably connected between the left and right sides of the inner wall of the rectangular cover. The worm gear meshes with a worm wheel for transmission and fixes the cutting angle through its self-locking characteristic, ensuring the stability of the MPP pipe cutting process. The right end of the worm gear shaft passes through the inner wall of the rectangular cover and is fixedly connected to a knob. The knob provides an operating interface for manually adjusting the worm gear, making it easy to control the MPP pipe cutting angle.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The anti-skew cutting equipment for MPP pipes uses a single threaded rod to drive a strip-shaped movable plate and link it with the V-shaped pressure plates on both sides, achieving single-point operation and synchronous control of clamping force. This solves the problem of the traditional double threaded rods requiring synchronous operation, significantly reducing the complexity of operation. At the same time, combined with the upper and lower clamping design of the V-shaped support plate and the V-shaped pressure plate, it forms a ring-shaped fixation for the MPP pipe, effectively preventing the pipe from rolling or shifting during cutting.

[0018] 2. The anti-skew cutting equipment for this MPP pipe uses a motor-driven high-speed rotating cutter to cut the MPP pipe. By replacing the traditional hard cutting with rotary cutting, the impact on the pipe is reduced, and crushing or cracking caused by stress concentration at the cut is avoided, ensuring a flat and smooth cut surface.

[0019] 3. The anti-skew cutting equipment for MPP pipes uses an angle adjustment component that is driven by a worm gear and worm, combined with manual control by a knob, to achieve stepless adjustment of the tilt angle of the cutting piece. It can complete both conventional vertical cutting and meet the requirements for skew cutting of MPP pipes. Moreover, the self-locking characteristics of the worm gear and worm ensure that the angle is stable during the cutting process and avoids deviation.

[0020] 4. The anti-skew cutting equipment for MPP pipes has a first rubber pad and a second rubber pad respectively set on the surface of the V-shaped support plate and the V-shaped pressure plate. The friction is increased through elastic contact, which can not only firmly fix the MPP pipes, but also avoid the rigid clamping from causing indentations or scratches on the outer wall of the pipes. It is especially suitable for MPP pipe processing scenarios with high surface quality requirements. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the anti-skew positioning component in this utility model;

[0024] Figure 4This is a schematic diagram of the assembly structure of the lifting plate, the cutting part, and the angle adjusting part in this utility model;

[0025] In the diagram: 1. Workbench; 10. Chip discharge port; 2. Anti-skew positioning component; 20. U-shaped fixing plate; 21. V-shaped support plate; 22. Connecting horizontal plate; 23. Threaded rod; 24. Strip movable plate; 240. Positioning vertical rod; 25. V-shaped pressure plate; 26. First rubber pad; 27. Second rubber pad; 3. L-shaped bracket; 30. Fixed vertical rod; 4. Lifting plate; 5. Cutting component; 50. Rotating plate; 51. Mounting vertical plate; 52. Motor; 53. Cutting blade; 6. Angle adjustment component; 60. Rectangular cover; 61. Worm gear; 62. Worm; 63. Knob; 7. Hydraulic cylinder. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Please see Figures 1-4 This utility model provides a technical solution:

[0029] The anti-skew cutting equipment for MPP pipes includes a workbench 1, which provides a stable base for the cutting operation. An anti-skew positioning component 2 is located on the top of the workbench 1. This component 2 uses a bidirectional clamping mechanism to fix the MPP pipe, preventing it from rolling or shifting during cutting. The anti-skew positioning component 2 includes two symmetrically arranged U-shaped fixing plates 20. These U-shaped fixing plates 20 provide rigid support for the clamping mechanism and adapt to the processing requirements of MPP pipes of different diameters. A V-shaped support plate 21 is located at the bottom of the inner wall of the U-shaped fixing plate 20. The V-shaped support plate 21 conforms to the outer wall of the MPP pipe through its concave structure, dispersing the pressure generated during cutting. A connecting structure is provided between the two U-shaped fixing plates 20. The horizontal plate 22 enhances the structural stability of the U-shaped fixing plate 20 and provides an installation position for the threaded rod 23. The threaded rod 23 is threadedly connected to the middle of the top of the horizontal plate 22. The threaded rod 23 drives the strip movable plate 24 to rise and fall by rotation, realizing single-point operation and synchronous control of the clamping force on both sides. The bottom end of the threaded rod 23 is rotatably connected to the strip movable plate 24. The strip movable plate 24 converts the rotational movement of the threaded rod 23 into vertical lifting and lowering, driving the V-shaped pressure plate 25 to press the MPP pipe. The bottom left and right ends of the strip movable plate 24 are provided with V-shaped pressure plates 25. The V-shaped pressure plates 25 and the V-shaped support plate 21 cooperate to form a clamping of the MPP pipe and prevent skewing during cutting.

[0030] An L-shaped bracket 3 is provided on the rear side of the top of the workbench 1 and near the right end. The L-shaped bracket 3 provides vertical support for the cutting mechanism to ensure that the cutting direction is perpendicular to the axis of the MPP pipe. A hydraulic cylinder 7 is provided on the top of the L-shaped bracket 3 and connected to an external hydraulic drive system. The hydraulic cylinder 7 drives the lifting plate 4 to rise and fall smoothly through hydraulic power. The movable rod of the hydraulic cylinder 7 passes through the top of the L-shaped bracket 3 and is fixedly connected to the lifting plate 4. The lifting plate 4 serves as a support platform for the cutting part 5 and the angle adjustment part 6 and controls the cutting depth of the cutter 53.

[0031] A cutting component 5 is rotatably connected to the bottom and near the front end of the lifting plate 4. The cutting component 5 reduces the hard impact on the MPP pipe by rotating and cutting to prevent the cut from breaking. The cutting component 5 includes a rotating plate 50, which is linked with an angle adjustment component 6 to adjust the tilt angle of the cutter 53. A mounting vertical plate 51 is provided at the bottom of the rotating plate 50. A motor 52 is provided on the right side of the mounting vertical plate 51 and is powered by an external power source. The output shaft of the motor 52 passes through the right side of the mounting vertical plate 51 and is coaxially connected to the cutter 53. The motor 52 drives the cutter 53 to rotate at high speed, improving the cutting efficiency of the MPP pipe. An angle adjustment component 6 is provided at the top of the lifting plate 4 to drive the rotation of the rotating plate 50. The angle adjustment component 6 controls the cutting angle to meet the requirements of bevel cutting of MPP pipe.

[0032] In this embodiment, a chip discharge port 10 is provided on the top of the workbench 1. The chip discharge port 10 is located directly below the cutting piece 5 and is used to discharge the chips generated during the cutting of MPP pipes, keeping the processing area clean.

[0033] Specifically, the V-shaped pressure plate 25 is located directly above the V-shaped support plate 21. The concave surface of the V-shaped support plate 21 is bonded with a first rubber pad 26, and the concave surface of the V-shaped pressure plate 25 is bonded with a second rubber pad 27. This increases the friction with the MPP pipe and protects the pipe surface, preventing indentations from forming on the outer wall of the MPP pipe due to rigid contact.

[0034] Furthermore, positioning vertical rods 240 are provided at the top of the strip movable plate 24 and near the left and right ends. The top ends of the two positioning vertical rods 240 penetrate through the top of the inner wall of the two U-shaped fixed plates 20 to the outside, restricting the movement trajectory of the strip movable plate 24 and making the strip movable plate 24 move stably up and down.

[0035] Furthermore, a fixed vertical rod 30 is provided at the top of the inner wall of the L-shaped bracket 3 and near the rear side. The lifting plate 4 is slidably connected to the outside of the fixed vertical rod 30 to guide the vertical movement of the cutting piece 5 and prevent the cut from tilting due to the offset of the cutter 53 when cutting the MPP pipe.

[0036] Furthermore, the angle adjustment component 6 includes a rectangular cover 60 fixedly connected to the top of the lifting plate 4. The rectangular cover 60 encloses the worm gear 61 and the worm 62 to prevent debris from interfering with the transmission accuracy. The top of the inner wall of the rectangular cover 60 is rotatably connected to the worm gear 61. The bottom end of the worm gear 61's rotating shaft is coaxially connected to the top end of the rotating plate 50's rotating shaft. The angle adjustment enables the cutter 53 to cut the MPP pipe at an angle.

[0037] Furthermore, a worm gear 62 is rotatably connected between the left and right sides of the inner wall of the rectangular cover 60. The worm gear 62 meshes with the worm wheel 61 for transmission. The cutting angle is fixed by the self-locking characteristic to ensure the stability of the MPP pipe cutting process. The right end of the worm gear 62 shaft passes through the inner wall of the rectangular cover 60 and is fixedly connected to a knob 63. The knob 63 provides an operating interface for manually adjusting the worm gear 62, which facilitates the control of the MPP pipe cutting angle.

[0038] In this embodiment, the anti-skew cutting equipment for MPP pipes is used by first placing the MPP pipe horizontally on the two V-shaped support plates 21 at the top of the workbench 1. By rotating the threaded rod 23 in the anti-skew positioning component 2 clockwise, the strip-shaped movable plate 24 is driven to move vertically downward, causing the V-shaped pressure plates 25 on both sides to clamp the pipe with the V-shaped support plates 21. The first rubber pad 26 and the second rubber pad 27 are used to increase friction and protect the surface of the pipe. Then, the hydraulic cylinder 7 at the top of the L-shaped bracket 3 is activated to drive the lifting mechanism. Plate 4 moves vertically downward along the fixed vertical rod 30, causing the cutter 53 of the cutting piece 5 to contact the pipe. At the same time, the motor 52 is started to drive the cutter 53 to rotate at high speed for cutting. The debris generated by cutting is discharged through the chip discharge port 10 of the worktable 1. When bevel cutting is required, the knob 63 of the angle adjustment piece 6 is manually rotated to drive the worm gear 62 to rotate. Through the meshing transmission of the worm wheel 61, the rotating plate 50 and the cutter 53 are tilted to the set angle. The self-locking characteristics of the worm gear 62 and the worm wheel 61 are used to maintain the angle stability. After the cutting is completed, all parts are reset.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-skew cutting device for MPP pipes, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with an anti-skew positioning component (2), which includes two U-shaped fixing plates (20) arranged symmetrically on the left and right. The bottom of the inner wall of the U-shaped fixing plate (20) is provided with a V-shaped support plate (21). A connecting horizontal plate (22) is provided between the two U-shaped fixing plates (20). A threaded rod (23) is threadedly connected to the middle of the top of the connecting horizontal plate (22). A strip-shaped movable plate (24) is rotatably connected to the bottom end of the threaded rod (23). V-shaped pressure plates (25) are provided at both the left and right ends of the bottom of the strip-shaped movable plate (24). An L-shaped bracket (3) is provided on the rear side of the top of the workbench (1) near the right end. The top of the L-shaped bracket (3) is provided with a hydraulic cylinder (7). The movable rod of the hydraulic cylinder (7) passes through the top of the L-shaped bracket (3) and is fixedly connected to a lifting plate (4). The bottom of the lifting plate (4) and near the front end are rotatably connected to a cutting component (5). The cutting component (5) includes a rotating plate (50). The bottom of the rotating plate (50) is provided with a mounting vertical plate (51). The right side of the mounting vertical plate (51) is provided with a motor (52). The output shaft of the motor (52) passes through the right side of the mounting vertical plate (51) and is coaxially connected to a cutter (53). The top of the lifting plate (4) is provided with an angle adjustment component (6) for driving the rotating plate (50) to rotate.

2. The anti-skew cutting equipment for MPP pipes according to claim 1, characterized in that: The top of the workbench (1) is provided with a chip discharge port (10), which is located directly below the cutting piece (5).

3. The anti-skew cutting equipment for MPP pipes according to claim 1, characterized in that: The V-shaped pressure plate (25) is located directly above the V-shaped support plate (21). The concave surface of the V-shaped support plate (21) is bonded with a first rubber pad (26), and the concave surface of the V-shaped pressure plate (25) is bonded with a second rubber pad (27).

4. The anti-skew cutting equipment for MPP pipes according to claim 1, characterized in that: The top of the strip-shaped movable plate (24) and near the left and right ends are provided with positioning vertical rods (240), and the top ends of the two positioning vertical rods (240) respectively penetrate through the top of the inner wall of the two U-shaped fixed plates (20) to the outside.

5. The anti-skew cutting equipment for MPP pipes according to claim 1, characterized in that: A fixed vertical rod (30) is provided at the top of the inner wall of the L-shaped bracket (3) and near the rear side, and the lifting plate (4) is slidably connected to the outside of the fixed vertical rod (30).

6. The anti-skew cutting equipment for MPP pipes according to claim 1, characterized in that: The angle adjustment component (6) includes a rectangular cover (60) fixedly connected to the top of the lifting plate (4). A worm gear (61) is rotatably connected to the top of the inner wall of the rectangular cover (60). The bottom end of the worm gear (61) shaft is coaxially connected to the top end of the rotating plate (50) shaft.

7. The anti-skew cutting device for MPP pipes according to claim 6, characterized in that: A worm gear (62) is rotatably connected between the left and right sides of the inner wall of the rectangular cover (60). The worm gear (62) meshes with the worm wheel (61) for transmission. The right end of the worm gear (62) shaft passes through the inner wall of the rectangular cover (60) and is fixedly connected to a knob (63).

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