Pipe cutting apparatus with recovery mechanism

Abstract

This application relates to the field of cutting equipment technology and discloses a pipe cutting device with a recycling mechanism, including a pipe cutting box. The side surface of the pipe cutting box has an inlet and an outlet. This application constructs a complete and efficient waste recycling system, achieving a dual improvement in environmental protection and resource utilization. Air curtains at the inlet and outlet of the pipe cutting box form an invisible barrier with high-speed airflow, effectively preventing waste and dust from overflowing, ensuring a clean working environment, and protecting the health of operators. A recycling bin is connected to the lower surface of the pipe cutting box, and filter bags are installed inside the frame. Together with a fan, a negative pressure dust collection system is formed, which can quickly adsorb fine debris and dust generated during cutting. The filter bags can efficiently filter, allowing clean air to be discharged. The collected waste remains in the recycling bin. A recycling drawer is used to collect larger pipe scraps or block-shaped waste, facilitating centralized processing of different types of waste and improving resource recycling rates.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment technology, and in particular to a pipe cutting device with a recycling mechanism. Background Technology

[0002] Pipes are widely used in modern industrial production and various engineering constructions, from water supply and drainage pipes and ventilation pipes in the building sector to hydraulic pipelines and pneumatic pipelines in machinery manufacturing. Pipe cutting is a key link in achieving its adaptation and installation and component processing. With the continuous expansion of industrial scale and the growing awareness of environmental protection, the problem of waste disposal and recycling in the pipe cutting process has become increasingly prominent, becoming an important factor restricting the efficient and green development of the industry.

[0003] Traditional pipe cutting equipment often focuses solely on the pipe cutting function during operation, neglecting the recycling of waste generated during the cutting process. Waste generated during cutting, such as metal pipe shavings and scraps, is usually scattered around the work area. This not only makes the work site messy and increases the difficulty and time cost of cleaning, but more seriously, a large amount of recyclable materials are wasted, which runs counter to the current concept of building a resource-saving society. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a pipe cutting device with a recycling mechanism.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a pipe cutting device with a recycling mechanism, including a pipe cutting box, wherein the side surface of the pipe cutting box is provided with an inlet and an outlet, and an air curtain is installed on the outer side of the inlet and outlet; a first electric cylinder is bolted to the upper surface of the pipe cutting box, a U-shaped frame is installed at the telescopic end of the first electric cylinder, a fixing rod is provided below the U-shaped frame and welded to the pipe cutting box; a cutting motor is installed on the side surface of the U-shaped frame, and a cutting blade is installed at the output end of the cutting motor; a recycling box is connected to the lower surface of the pipe cutting box through a pipe, and a keel is installed inside the recycling box; a filter bag is sleeved on the surface of the keel; a fan is installed through the side surface of the recycling box; a recycling drawer is slidably installed on the side surface of the pipe cutting box, and a bearing rod is installed on the inner bottom surface of the recycling drawer.

[0006] By adopting the above technical solutions, a complete and efficient waste recycling system has been constructed, achieving a dual improvement in environmental protection and resource utilization. The air curtain machines at the inlet and outlet of the pipe cutting box form an invisible barrier with high-speed airflow, effectively preventing waste and dust from overflowing, ensuring a clean working environment, and protecting the health of operators. The lower surface of the pipe cutting box is connected to the recycling box, and the internal keel is fitted with filter bags, which, together with the fan, form a negative pressure dust collection system that can quickly adsorb the fine debris and dust generated during cutting. The filter bags can filter efficiently, allowing clean air to be discharged, while the collected waste remains in the recycling box. The recycling drawer is used to collect larger pipe scraps or blocky waste, facilitating centralized processing of different types of waste and improving the resource recycling rate.

[0007] Furthermore, a second electric cylinder is hinged to the inner top surface of the pipe cutting box, and the telescopic end of the second electric cylinder is connected to a feeding rod via a rotating shaft. A conveyor belt conveying mechanism is installed inside the pipe cutting box and below the feeding rod via a fixed frame. A pipe cutting waste shape monitoring device is fixed to the inner top surface of the pipe cutting box by bolts.

[0008] By adopting the above technical solution, when cutting shorter pipes, the conveyor belt conveyor automatically transports the cut pipes or waste materials, reducing manual intervention and improving production efficiency. The high-definition camera and image recognition technology of the pipe cutting waste shape monitoring device monitor the shape, size and length of the pipes in real time. Once the cut pipe does not meet the requirements, the second electric cylinder drives the material feeding rod to swing, causing the waste scrap to fall from the conveyor belt conveyor into the recycling drawer, thereby completing the recycling operation of the waste scrap.

[0009] Furthermore, the lower surface of the U-shaped frame is provided with a through hole, and a damping spring is provided inside the through hole, with a fixing post provided below the damping spring.

[0010] By adopting the above technical solution, as the slice moves downward, its fixing post will come into contact with the pipe, thereby fixing the pipe and facilitating subsequent cutting of the pipe.

[0011] Furthermore, the slicing is performed using ceramic cutting tools.

[0012] By adopting the above technical solutions, ceramic cutting tools, with their high hardness, high wear resistance, and high temperature resistance (above 1200℃), reduce wear rate by 70% compared to traditional tools when cutting metal or hard plastic pipes, extend service life by 3-5 times, and reduce tool replacement frequency and maintenance costs. Their sharp cutting edges enable high-speed cutting, increasing pipe cutting efficiency by 40%, while ensuring a smooth and even cut, reducing subsequent grinding processes and lowering production costs.

[0013] Furthermore, the front of the pipe cutting box is fitted with an inspection door via a hinge, and the front of the inspection door is inlaid with an observation window.

[0014] By adopting the above technical solutions, the inspection door, with its hinge design, opens and closes easily and conveniently. This allows staff to inspect, clean, and replace parts inside the pipe cutting box, including the cutting components, conveying mechanism, and recycling system, reducing single maintenance time by 40%. The observation window allows operators to monitor the working status inside the pipe cutting box in real time.

[0015] Furthermore, an integrated controller is mounted on the front of the pipe cutting box.

[0016] By adopting the above technical solutions, the integrated controller achieves a high degree of intelligent and automated control of the equipment. As the "brain" of the equipment, the integrated controller uniformly regulates components such as the first electric cylinder, the second electric cylinder, the cutting motor, the fan, and the conveyor belt mechanism. It can also receive feedback signals from the pipe-cutting waste morphology camera monitoring device.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. In this application, a complete and efficient waste recycling system is constructed to achieve a dual improvement in environmental protection and resource utilization. The air curtain machine at the inlet and outlet of the pipe cutting box forms an invisible barrier with high-speed airflow, effectively preventing waste and dust from overflowing, ensuring a clean working environment, and protecting the health of operators. The lower surface of the pipe cutting box is connected to the recycling box, and the internal keel is fitted with filter bags. Together with the fan, a negative pressure dust collection system is formed, which can quickly adsorb the fine debris and dust generated during cutting. The filter bags can filter efficiently, allowing clean air to be discharged. The collected waste is left in the recycling box. The recycling drawer is used to collect larger pipe scraps or block waste, which facilitates centralized processing of different types of waste and improves the resource recycling rate.

[0019] 2. In this application, when cutting shorter pipes, the conveyor belt conveyor automatically transports the cut pipes or waste materials, reducing manual intervention and improving production efficiency. The high-definition camera and image recognition technology of the pipe cutting waste shape monitoring device are used to monitor the shape, size and length of the pipes in real time. Once the cut pipe does not meet the requirements, the second electric cylinder drives the material feeding rod to swing, causing the waste scrap to fall from the conveyor belt conveyor into the recycling drawer, thereby completing the recycling operation of the waste scrap. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the pipe cutting box and its internal structure according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the recycling bin and its internal structure according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the C-shaped frame and its connection structure according to an embodiment of the present utility model.

[0024] In the diagram: 1. Pipe cutting box; 2. Integrated controller; 3. Recycling bin; 4. Keel; 5. Filter bag; 6. Fan; 7. Recycling drawer; 8. Support rod; 9. Inspection door; 10. Observation window; 11. Air curtain machine; 12. First electric cylinder; 13. Chamfer frame; 14. Cutting motor; 15. Slice; 16. Damping spring; 17. Fixed column; 18. Conveyor belt conveyor mechanism; 19. Pipe cutting waste morphology camera monitoring instrument; 20. Feeding rod; 21. Second electric cylinder. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figure 1-4 As shown in the embodiment of this application, a pipe cutting device with a recycling mechanism is disclosed, including a pipe cutting box 1. The side surface of the pipe cutting box 1 is provided with an inlet and an outlet, and an air curtain machine 11 is installed on the outer side of the inlet and outlet. A first electric cylinder 12 is bolted to the upper surface of the pipe cutting box 1. A U-shaped frame 13 is installed at the telescopic end of the first electric cylinder 12. A fixing rod is provided below the U-shaped frame 13 and is welded to the pipe cutting box 1. A cutting motor 14 is installed on the side surface of the U-shaped frame 13, and a slice 15 is installed at the output end of the cutting motor 14. A recycling box 3 is connected to the lower surface of the pipe cutting box 1 through a pipe, and a keel 4 is installed inside the recycling box 3. A filter bag 5 is sleeved on the surface of the keel 4. A fan 6 is installed through the side surface of the recycling box 3. A recycling drawer 7 is slidably installed on the side surface of the pipe cutting box 1, and a bearing rod 8 is installed on the inner bottom surface of the recycling drawer 7.

[0027] Pipe cutting box 1: As the core load-bearing component of the device, it is made of welded steel plate. The inlet and outlet are opened symmetrically on the side surface to ensure straight pipe delivery. The air curtain machine 11 is fixed to the outer edge of the inlet and outlet by bolts to form a closed working space. Together with the air curtain machine 11, a three-level protection system is formed to reduce the dust leakage rate to below 0.5%.

[0028] Cutting execution components: The first electric cylinder 12 is bolted to the upper surface of the pipe cutting box 1 via a flange, and the end of its piston rod is welded to the top plate of the shaped frame 13. The cutting motor 14 is fixed to the side surface of the shaped frame 13 via a shock-absorbing pad. The output shaft and the cutting blade 15 are double-fastened by a keyway fit and a locking nut. Its fixing rod is welded to the inner wall of the pipe cutting box 1 to support the pipe. When the first electric cylinder 12 drives the shaped frame 13 to rise and fall, the cutting blade 15 is used to cut the pipe.

[0029] Recycling System: The recycling box 3 is welded to the bottom of the pipe cutting box 1 through a pipe. The keel 4 is made of 304 stainless steel square tube with ventilation holes on the surface. The filter bag 5 is fitted onto the keel 4 through an elastic drawstring to form a detachable filter assembly. The fan 6 flange is welded to the side of the recycling box 3, and the air inlet is connected to the inner cavity of the filter bag 5. After the fan 6 is started, a negative pressure environment is formed in the recycling box 3. The dust in the pipe cutting box 1 is sucked into the filter bag 5 through the pipe, the particles are intercepted, and the purified air is discharged through the fan 6.

[0030] A second electric cylinder 21 is hinged to the inner top surface of the pipe cutting box 1. The telescopic end of the second electric cylinder 21 is connected to a material feeding rod 20 via a rotating shaft. A conveyor belt type conveying mechanism 18 is installed inside the pipe cutting box 1 and below the material feeding rod 20 via a fixed frame. A pipe cutting waste shape camera monitoring instrument 19 is fixed to the inner top surface of the pipe cutting box 1 by bolts.

[0031] Conveyor belt type conveyor mechanism 18: The conveyor belt type conveyor mechanism 18 is bolted to the inner wall of the pipe cutting box 1 through the fixed frame. The two ends of the transmission roller are supported by bearings with seats. Rubber shock-absorbing pads are set between the bearing seats and the fixed frame. The conveyor belt is made of anti-static PVC material and has anti-slip stripes on the surface. When the pipe is cut, the conveyor belt starts immediately and transports the pipe to the discharge port. If the pipe cutting waste morphology camera monitoring instrument 19 detects short pipe waste, it triggers the second electric cylinder 21 to act.

[0032] Material feeding rod 20 assembly: One end of the second electric cylinder 21 is hinged to the top surface of the inner tube through a fisheye connector, and the other end is connected to the material feeding rod 20 through a fisheye connector. After its monitor detects waste material, the controller sends a signal to the second electric cylinder 21, which drives the material feeding rod 20 to swing and sweep the waste material off the transmission belt to the recycling drawer 7.

[0033] Pipe cutting waste morphology camera monitoring instrument 19: It is fixed to the inner top surface of the pipe cutting box 1 by bolts. The monitoring range covers the entire conveyor belt. It has a built-in industrial-grade CCD camera and LED supplementary light group. It adopts a vision algorithm based on deep learning to detect the length, diameter and other properties of the pipe in real time. When a non-compliant pipe is detected, a control signal is output within 0.3 seconds.

[0034] The lower surface of the U-shaped frame 13 has a through hole, and a damping spring 16 is installed inside the through hole. A fixing post 17 is installed below the damping spring 16.

[0035] Damping spring 16 assembly: A through hole is opened on the lower surface of the bracket 13, and the damping spring 16 is nested in the through hole. The fixing post 17 is cylindrical. When the slice 15 approaches the tube, the fixing post 17 contacts the surface of the tube first, and the spring is compressed to generate a preload. As the cutting goes deeper, the spring reaction force is applied to the fixing post 17 to fix the tube.

[0036] Slicing 15 was done using a ceramic knife.

[0037] It uses Al2O3-based composite ceramic material with a density of 3.8 g / cm³. 3 Hardness HRA 92-94, fracture toughness 6-8 MPa·m1 / 2, coefficient of thermal expansion 6.5×10 -6 The cutting tool features an unequal tooth pitch design (tooth pitch difference of 2-3mm) to reduce resonance effects; the cutting edge is precision ground, with a cutting radius of <5μm, reducing cutting resistance by 30%. When cutting φ50mm stainless steel pipes, the feed rate can reach 120mm / min, which is 50% higher than that of carbide cutting tools.

[0038] The front of the pipe cutting box 1 is fitted with an inspection door 9 via a hinge, and the front of the inspection door 9 is fitted with an observation window 10.

[0039] Inspection door 9: Utilizing 304 stainless steel hinges, it is welded and fixed to the front frame of the pipe cutting box 1, ensuring smooth opening and closing and balanced weight distribution. Silicone sealing strips are installed at the contact points between the door and the box, and a fixing slot secures it to the door frame. The quick-release design of inspection door 9 facilitates easy access for personnel to inspect, clean, and replace parts inside the pipe cutting box 1, including cutting components, conveying mechanisms, and the recycling system, reducing single maintenance time by 40%. An integrated controller 2 is installed on the front of the pipe cutting box 1.

[0040] Observation window 10: Made of 5mm thick tempered glass, with an aluminum alloy frame around it. The frame is fixed to the inspection door 9 by countersunk bolts. The glass and the frame are filled with sealant to form a waterproof and dustproof structure. Operators can make macroscopic judgments through the observation window 10.

[0041] Integrated Controller 2: Based on Siemens S7-1200 PLC, equipped with a 10.4-inch touch screen HMI, built-in 8 analog inputs and 16 digital outputs; supports Modbus / TCP protocol, can communicate with camera monitoring instruments, motor drivers and other devices; automatic mode: automatically calculates cutting path, feed speed and recovery strategy according to preset pipe parameters (length, diameter); monitoring linkage: receives data from camera monitoring instrument and dynamically adjusts fan 6 power (automatically increases speed when dust concentration is high) and conveyor belt speed.

[0042] The operating principle of the pipe cutting device with a recycling mechanism in this embodiment is as follows: The device achieves automated pipe cutting and waste sorting and recycling through the linkage of four major modules: cutting, conveying, monitoring, and recycling. The integrated controller 2 acts as the core hub, coordinating the operation of components such as the first electric cylinder 12, cutting motor 14, fan 6, and conveyor belt according to a preset program. Simultaneously, it receives real-time feedback from the camera monitoring device, forming a closed-loop workflow of "dynamic cutting - intelligent sorting - efficient recycling": First electric cylinder 12 drive: The integrated controller 2 sends a command, causing the first electric cylinder 12 to extend and retract vertically downwards, driving the U-shaped frame 13 downwards. The damping spring 16 on the lower surface of the U-shaped frame 13 first contacts the pipe with the fixed column 17, uniformly pressing the pipe through the spring buffer force to prevent shaking during cutting. The cutting motor 14 starts, driving the ceramic slice 15 to rotate at high speed (speed can reach 3000-5000 r / min). Due to the high hardness of ceramic blades (HRA 85-90), they can quickly cut metal or rigid plastic pipes with a cutting accuracy of ±0.1mm. At the same time, their high-temperature resistance reduces the heat generated by cutting friction and avoids pipe deformation. When the bracket 13 moves down, the fixing post 17 contacts the pipe first, and the damping spring 16 is compressed to generate elastic force, forming a "flexible fixing" effect: ensuring the stability of the pipe while avoiding rigid compression that could damage the pipe surface. After cutting, the first electric cylinder 12 retracts, the spring returns to its original position, and the pipe is released. The air curtain 11 at the inlet and outlet forms an air curtain at a wind speed of 20-30 m / s, creating a barrier at the opening using aerodynamic principles. The positive airflow prevents the dust and debris generated during pipe cutting from spreading outward, confining more than 90% of the waste within the pipe cutting box 1. Combined with the negative pressure system of the recovery box 3, the air curtain and negative pressure create an "internal and external pressure difference," further guiding the dust towards the recovery box 3. During the cutting operation, the blower 6 is turned on simultaneously, creating a negative pressure (negative pressure value -500Pa to -800Pa) within the recovery box 3. The dust and fine debris in the pipe cutting box 1 are sucked into the recovery box 3 through the pipe. The dust enters the recovery box 3 with the airflow, and its speed decreases after impacting the frame of the keel 4. Larger particles are directly... Settling; fine dust is intercepted by filter bag 5 (pore size 5-10μm), and clean air is discharged by fan 6. Filter bag 5 can filter more than 99% of dust, which meets environmental emission standards. For pipe scraps or blocky waste with a length >5cm, when the camera monitor identifies that the waste shape does not meet the requirements (such as too short length or crooked cut), the second electric cylinder 21 drives the material-push rod 20 to swing, pushing the waste into the recycling drawer 7, realizing the classification and recycling of "large waste and fine dust", improving the recycling efficiency by 60%. The cut pipes or waste fall on the conveyor belt, which is driven by the motor (speed 0.5-1m / s) to be transported to the discharge port. For qualified pipes, they are sent directly out from the discharge port. For waste, they are conveyed to the area below the material-push rod 20, and the monitoring system determines whether to recycle them.

[0043] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A pipe-cutting device with a recycling mechanism, comprising a pipe-cutting box (1), characterized in that: The pipe cutting box (1) has an inlet and an outlet on its side surface, and an air curtain machine (11) is installed on the outer side of the inlet and outlet. A first electric cylinder (12) is bolted to the upper surface of the pipe cutting box (1). A U-shaped frame (13) is installed at the telescopic end of the first electric cylinder (12). A fixing rod is provided below the U-shaped frame (13), and the fixing rod is welded to the pipe cutting box (1). A cutting motor (14) is installed on the side surface of the U-shaped frame (13). The output end of the cutting motor (14) is equipped with a slicing blade (15). The lower surface of the pipe cutting box (1) is connected to a recycling box (3) through a pipe. The inside of the recycling box (3) is equipped with a keel (4). The surface of the keel (4) is covered with a filter bag (5). A fan (6) is installed through the side surface of the recycling box (3). A recycling drawer (7) is slidably installed on the side surface of the pipe cutting box (1). A bearing rod (8) is installed on the inner bottom surface of the recycling drawer (7).

2. The pipe cutting device with a recycling mechanism according to claim 1, characterized in that: The inner top surface of the pipe cutting box (1) is hinged with a second electric cylinder (21). The telescopic end of the second electric cylinder (21) is connected to a material feeding rod (20) via a rotating shaft. Inside the pipe cutting box (1) and below the material feeding rod (20), a conveyor belt type conveying mechanism (18) is installed via a fixed frame. The inner top surface of the pipe cutting box (1) is fixed with a pipe cutting waste shape camera monitoring instrument (19) by bolts.

3. The pipe cutting device with a recycling mechanism according to claim 2, characterized in that: The lower surface of the shaped frame (13) is provided with a through hole, and a damping spring (16) is provided inside the through hole. A fixing post (17) is provided below the damping spring (16).

4. The pipe cutting device with a recycling mechanism according to claim 3, characterized in that: The slice (15) is made using a ceramic cutting tool.

5. The pipe cutting device with a recycling mechanism according to claim 4, characterized in that: The front of the pipe cutting box (1) is fitted with an inspection door (9) via a hinge, and the front of the inspection door (9) is fitted with an observation window (10).

6. The pipe cutting device with a recycling mechanism according to claim 5, characterized in that: An integrated controller (2) is mounted on the front of the pipe cutting box (1).

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