Pipe end face sealing apparatus

Abstract

The application discloses a pipe end face sealing equipment, which comprises a sealing unit, and the sealing unit comprises a pipe end face cutting device, a pipe end face forming device and a visual detection device. The pipe end face cutting device is used for cutting the pipe end face. The pipe end face forming device is used for heating and forming the pipe end face after being cut by the pipe end face cutting device, so as to seal the pipe end face. The visual detection device is used for acquiring image information of the pipe end face after being cut by the pipe end face cutting device and / or acquiring image information of the pipe end face after being heated and formed by the pipe end face forming device. The pipe end face sealing equipment can be seamlessly connected with a preceding cutting machine, can automatically convey the pipe for processing, can improve the processing efficiency, and can acquire the pipe end face image information through the visual detection device, so that whether the forming is successful can be known, and remedial measures can be taken, and the shaping effect is improved.

Description

Technical Field

[0001] This invention belongs to the field of pipe processing technology, specifically relating to a pipe end sealing device. Background Technology

[0002] Steel wire mesh reinforced plastic composite pipe is a high-performance new type of pipe that is widely used in oil fields, power plants, chemical and petrochemical enterprises, water supply companies, municipal gas, seawater utilization pipelines and other fields.

[0003] The current process involves manual sealing, primarily using welded plastic rings. The main drawback of this method is:

[0004] 1. Manual ring application has a low degree of automation and cannot be integrated with the front-end pipe cutting machine for in-line processing;

[0005] 2. The ring is easy to fall off after being attached;

[0006] 3. Extremely low efficiency, with long manual application time. Summary of the Invention

[0007] To solve the above-mentioned technical problems, the present invention aims to provide a pipe end-face sealing device to improve processing efficiency.

[0008] The objective of this invention is achieved through the following technical solution:

[0009] A pipe end-face sealing device includes a sealing unit, wherein the sealing unit comprises:

[0010] Pipe end face cutting device, used for cutting pipe end faces;

[0011] Pipe end face forming device is used to heat and form the pipe end face after it has been cut by the pipe end face cutting device, so as to seal the pipe end face.

[0012] A visual inspection device is used to acquire image information of the pipe end face after cutting by the pipe end face cutting device, and / or to acquire image information of the pipe end face after heating and forming by the pipe end face forming device.

[0013] In this invention, the image information of the pipe end face after being cut by the pipe end face cutting device can be obtained by a visual inspection device. The cutting situation can be judged from the obtained image information of the pipe end face. For example, when the blade cannot cut, the steel wire on the pipe end face will form a continuous thread. At this time, the blade life can be determined by visually inspecting the shape of the steel wire on the end face, which can facilitate the timely replacement of the blade.

[0014] Similarly, a visual inspection device can be used to obtain information about the pipe end face after heating and forming, so as to know whether the forming was successful and to take remedial measures.

[0015] The identification and judgment method for determining the image information of the pipe end face in this invention can be carried out in a variety of ways, and various existing image recognition methods can be used, which will not be elaborated here.

[0016] The visual inspection device of this invention can have various structural forms. Preferably, the visual inspection device includes:

[0017] The detection module includes a camera and a detection sensor for sensing the presence of pipes;

[0018] A three-dimensional position adjustment frame is used to install the detection module and can adjust the three-dimensional position of the detection module.

[0019] In this invention, the detection module can be mounted on a three-dimensional adjustment frame, and its position can be adjusted using the three-dimensional position adjustment frame. The three-dimensional position adjustment frame can have various structural forms; for example, it can be implemented by setting support rods located in the X, Y, and Z directions respectively, with the relative positions adjusted through the cooperation of these support rods. Therefore, multiple implementation methods can be adopted, which will not be elaborated upon here.

[0020] In addition, the detection module of the present invention can also be equipped with an adjustment drive structure for adjusting the position of the camera. For example, the position of the camera can be changed by driving the motor, so as to obtain the optimal distance between the camera and the pipe end face, which is convenient for focusing and thus facilitates the acquisition of the image of the pipe end face.

[0021] Preferably, the device also includes a conveyor frame for conveying the pipe to the pipe end face cutting device and / or the pipe end face forming device for pipe end face processing.

[0022] In this invention, pipes can be transported to designated workstations via a conveyor frame for pipe end face cutting and pipe end face forming. The conveyor frame can have various structural forms; preferably, it includes:

[0023] Axial conveyor frame, used to receive pipes conveyed in the previous process;

[0024] A radial conveyor frame is located on one side of the axial conveyor frame and includes several radially fixed stations parallel to the conveying direction of the axial conveyor frame.

[0025] The pipe moving mechanism is used to transport the pipes on the axial conveying frame to the radial fixed position of the radial conveying frame, or to transport the pipes on the radial fixed position of the radial conveying frame to another radial fixed position.

[0026] In this invention, sealing units can be installed at one or both ends of the radial conveying frame. The axial conveying frame receives the pipe material conveyed in the previous process, allowing the pipe material to be conveyed axially. After being conveyed to a certain position, the pipe material moving mechanism moves the pipe material on the axial conveying frame to a radially fixed station adjacent to the axial conveying frame. At this radially fixed station, the end face of the pipe material is cut. After cutting, it is conveyed to the next radially fixed station for heat forming. The number of radially fixed stations in this invention can be set according to actual needs, and the processing devices corresponding to both ends of each radially fixed station can also be adjusted according to actual needs.

[0027] To ensure the pipe is securely fixed at the radially fixed position, preferably, the conveyor frame also includes:

[0028] A clamping and fixing mechanism is used to clamp the pipe at the radial fixing position so that the pipe is fixed at the radial fixing position.

[0029] The clamping and fixing mechanism in this invention has various structural forms. For example, the clamping and fixing mechanism in this invention may include a clamping component and a clamping drive structure. The clamping component has an arc-shaped fixing groove that matches the pipe. The clamping drive structure may include a cylinder. Under the drive of the cylinder, the arc-shaped fixing groove on the clamping component presses against the upper part of the pipe, thereby clamping and fixing the pipe between the radial fixing position and the arc-shaped fixing groove.

[0030] In this invention, because multiple radially fixed stations are provided, the clamping components between adjacent stations can be connected by a linkage. Only one cylinder is needed to link the clamping components in the same direction between adjacent stations. That is, a single cylinder can drive the clamping components in the same direction between adjacent stations to simultaneously clamp the pipe.

[0031] The pipe moving mechanism in this invention has various structural forms and can adopt various pipe moving methods. Preferably, the pipe moving mechanism includes:

[0032] The lifting guide has a guide ramp for guiding the pipe to the radially fixed position;

[0033] A bending guide is connected to the lifting guide and can be bent relative to the lifting guide;

[0034] A bending drive structure is used to drive the bending guide to bend relative to the lifting guide;

[0035] A lifting drive structure is used to drive the lifting guide to rise and fall.

[0036] In this invention, the lifting guide is driven by a lifting drive structure to lift the pipe, which is then raised. Under the guidance of the guide slope, the pipe can be moved from one radial fixed position to another radial fixed position. When the pipe is conveyed from the axial conveyor to the adjacent radial fixed station, it is conveyed using the same principle and method as the lifting guide through the bending guide. In this invention, the bending guide is designed to be flexible relative to the lifting guide. The main purpose is to ensure that during debugging and troubleshooting, the pipe processing equipment at the front end needs to remain operational for a certain period, such as 24 hours a day. The maintenance and debugging of this equipment must not affect the continuous supply of pipes from the preceding equipment. Therefore, the design concept is as follows: 1. When this equipment is under maintenance, it stops, and the pipes from the preceding equipment are conveyed to the receiving machine at the rear end of the equipment (provided by the customer) via the conveyor rollers. 2. Due to the design of the bending guide, during equipment debugging, the bending drive structure drives the bending guide to bend. The axial conveyor can stop conveying pipes to the radial fixed station, but the pipe lifting and conveying between the radial fixed stations can continue, without affecting the cutting and heating forming of the pipes at the radial fixed station.

[0037] The aforementioned bending drive structure and lifting drive structure have various structural forms and can be implemented using various existing structural methods, such as cylinders.

[0038] Preferably, the axial conveyor frame includes an axial conveyor roller conveyor and a limiting detection mechanism disposed on the axial conveyor roller conveyor; the axial conveyor roller conveyor has a conveying station corresponding to the radial fixed station; the limiting detection mechanism includes:

[0039] The front limit detection module is used to detect whether the pipe output from the previous process is in place;

[0040] The rear limit detection module is used to detect whether the pipe on the axial conveying roller conveyor exceeds the conveying station.

[0041] In this invention, the front limit detection module can detect whether the pipe output from the previous process is in place. If it is detected as in place, the axial conveyor rollers are started for axial conveying. When the axial conveying exceeds the rear limit detection module, it indicates that the pipe has exceeded the conveying station, which means it has exceeded the optimal conveying position. Therefore, the pipe must not be conveyed from the conveying station to the radial fixed station. If it exceeds the limit, a reverse mechanism can be used to pull the conveyor rollers out, and then wait for the next cycle. Therefore, preferably, the conveyor frame also includes:

[0042] A pipe reversing mechanism is used to pull pipes that are beyond the optimal conveying position of the conveying station out of the axial conveying rollers from the side away from the radial conveying frame.

[0043] In this invention, the pipe can be pulled out from the side away from the radial conveyor frame by the pipe reversing mechanism, that is, pulled out in the opposite direction, and the conveyor roller can wait for the next cycle.

[0044] The pipe reversing mechanism of this invention has various structural forms and can be implemented using various structural forms. Preferably, the pipe reversing mechanism includes:

[0045] The counter-pull member has a storage position in a retracted state to avoid obstructing the conveying of the tube on the axial conveying roller, and a counter-pull position movable to the axial conveying roller for pulling the tube off the axial conveying roller.

[0046] A reverse drive structure drives the reverse element to switch between the storage position and the reverse position.

[0047] In the aforementioned structure of the pipe reversing mechanism, when there is pipe on the axial conveying rollers, the reversing member is in the retracted position under the drive of the reversing drive structure, thus not obstructing the conveying of the pipe on the axial conveying rollers. When it is necessary to pull the pipe off the axial conveying rollers, the reversing drive structure drives the reversing member to the reversing position. During the process from the retracted position to the reversing position, the reversing member is in an active state, thus applying a force to the pipe, thereby pulling the pipe off the axial conveying rollers. In this invention, the retracted position can be located below the axial conveying rollers, and the reversing position can be located above the axial conveying rollers.

[0048] To ensure the tube is accurately pulled out to the desired position, preferably, the counter-pull member has a counter-pull guide ramp to guide the tube out. When pulled out, the tube falls along the counter-pull guide ramp and leaves the axial conveyor rollers.

[0049] Preferably, one end of the reverse member is rotatably connected to the axial conveyor frame, and the other end is connected to the reverse drive structure. The reverse drive structure drives the reverse member to rotate around the rotatable connection with the axial conveyor frame, so that the reverse member changes between the storage position and the reverse position.

[0050] The reverse lever component in this invention can have various structural forms, and the reverse lever drive structure can also have various structural forms. For example, the reverse lever drive structure in this invention can adopt a cylinder structure. The cylinder drives the other end of the reverse lever component to rotate around the rotating connection, realizing the movement of the reverse lever component between the storage position and the toggle position.

[0051] Preferably, a reverse baffle is provided on the side of the axial conveyor away from the radial conveyor, and the pipes pulled out from the axial conveyor rollers by the pipe reverse mechanism fall to the reverse baffle. In this invention, the pipes pulled out from the axial conveyor rollers are received by the reverse baffle, allowing multiple pipes to be collected together before rework.

[0052] The front and rear limit detection modules in this invention can have various structural forms. For example, they can be configured to include a detection rod mounted on the axial conveyor rollers and capable of rotating relative to the rollers under external force; and a sensor for sensing changes in the position of the detection rod. When the pipe is conveyed on the axial conveyor rollers, a force can be applied to the detection rod, causing it to rotate. When the detection rod rotates, the sensor detects the position change and sends a signal. Additionally, a counterweight can be included in this invention to cooperate with the detection rod.

[0053] In this invention, the front limit detection module and the rear limit detection module are mainly composed of a detection rod, a sensor, a rotating rod, and a counterweight. They are mainly used to detect whether the pipe is in place. When the pipe is in place, the detection rod is rotated by the downward pressure of the pipe and disengages from the sensor, indicating that the pipe has been delivered to the correct position.

[0054] In this invention, the front limit detection module and the rear limit detection module can be arranged sequentially along the conveying direction.

[0055] Preferably, the pipe end face cutting device and / or the pipe end face forming device include an end fixing mechanism for fixing the pipe end; the end fixing mechanism includes:

[0056] The upper fixing block has an upper arc-shaped fixing groove that mates with the pipe.

[0057] The lower fixing block has a lower arc-shaped fixing groove that mates with the pipe; (this structure can provide an arc-shaped fixing groove for replacing pipes of different diameters to accommodate pipes of different sizes)

[0058] A clamping drive structure is used to drive the upper fixing block and / or the lower fixing block to fix the pipe in the area enclosed by the upper arc-shaped fixing groove and the lower arc-shaped fixing groove;

[0059] A positioning mechanism is used to position and fix the upper fixing block and the lower fixing block;

[0060] The positioning mechanism consists of positioning pins disposed on the upper fixed block and / or the lower fixed block, and positioning pin sleeves disposed on the upper fixed block and / or the lower fixed block. (The function of the positioning pins is mainly to keep the upper and lower fixed blocks aligned, preventing misalignment of the upper and lower fixed blocks from affecting the pipe positioning function.)

[0061] In this invention, the positioning mechanism can serve as a safety measure for tool changing. When changing tools manually, after the positioning pin is inserted into the positioning pin sleeve, it can limit further downward pressure. Since it cannot be pressed down, the safety of the worker during tool changing is ensured.

[0062] In this invention, when the pipe is transported to the cutting station or forming station, the upper and / or lower fixing blocks are pressed down by the clamping drive structure to fix the pipe, ensuring that the pipe does not move and facilitating equipment processing.

[0063] Preferably, the pipe end face forming device includes a heating module, a forming module, and a positioning ring for positioning the pipe end and movable along the axial direction of the pipe; the heating module and / or the forming module are provided with limit rings; the pipe end face forming device also includes a pressure sensor for real-time monitoring of forming pressure.

[0064] In this invention, the pipe's end face needs to be heated before forming. Since the heated end face mainly involves plastic melting, the pipe's positional accuracy during forming is extremely high. Therefore, the pipe is fixed after being inserted into a positioning ring before the heating and forming processes are performed. The advantages of this design are: 1. It ensures accurate positioning of each pipe each time, facilitating heating and forming. 2. When switching between heating and forming fixtures, the pipe remains stationary, maintaining concentricity with both the heating and forming modules, thus improving accuracy.

[0065] In addition, the heating module and the forming module in this invention can be positioned by a semi-circular ring, which ensures accurate positioning of the heating module, the forming module and the positioning ring, eliminating the need to adjust the pipe's limiting stroke each time.

[0066] Furthermore, the molding module in this invention adopts an adjustable pressure method, and a pressure sensor is designed at the rear of the molding module to monitor the molding pressure in real time. When a certain pressure is reached, the system stops pressurizing to ensure the molding effect.

[0067] Preferably, the pipe end face cutting device includes:

[0068] Cut the main structure;

[0069] A protective cover is installed over the main cutting structure to prevent debris from splashing during the cutting of the pipe end face.

[0070] A protective cover moving mechanism is used to move the protective cover to facilitate the installation and removal of blades from the cutting main structure.

[0071] A chip collection box is used to collect chip debris.

[0072] The protective cover is equipped with a debris cutting blade.

[0073] The main function of the protective cover in this invention is to prevent debris from flying during pipe cutting, ensuring that all debris falls into the waste chip box. Additionally, the protective cover can be moved via a moving mechanism. When changing the blade or cutting tool, simply move the protective cover away, for example, by raising it upwards, to facilitate manual blade changing.

[0074] In addition, the protective cover of the present invention is provided with a sharp chip cutting blade. Since long chips are easily formed when the pipe end face is cut, the chip strips also rotate at high speed when the cutter is rotating at high speed. Therefore, a sharp chip cutting blade is designed on the inside of the protective cover. When the chip strips pass through the chip cutting blades, a relative cutting condition is formed, thereby cutting the chip strips.

[0075] Preferably, the device also includes a ground rail, and the pipe end face cutting device, pipe end face forming device and / or conveyor frame have rollers that cooperate with the ground rail.

[0076] The invention is designed with a ground rail and rollers under each module, which can move the modules to meet the processing needs of pipes of different lengths.

[0077] In this invention, through-beam sensors can be designed in both the cutting and forming processes. Their main function is to detect the position of the pipe end face. When the pipe is in position, the cutting spindle and forming spindle move forward. When the sensor detects the pipe end face, it feeds the position back to the system to determine the pipe end face position and accurately locate the pipe position.

[0078] In addition, in the pipe end face cutting device of the present invention, the spindle can use a common conventional tool holder (BT tool holder, HSK tool holder or standard A2-5\A2-6\A2-8 spindle end face), which facilitates quick blade replacement. The tool holder or tool module does not need to be removed when changing the blade, thus improving the replacement efficiency.

[0079] In addition, the pipe cutting device of the present invention also includes a chip collection box. The chip collection box can be located directly below the cutting station. The chip collection box can be moved out of the equipment. At the same time, the chip collection box is also designed with a door, so that the chip can be removed by simply opening the door without moving the chip collection box out.

[0080] The advantages of this invention compared to the prior art are:

[0081] (1) In this invention, it can be seamlessly connected with the preceding cutting machine to automatically transport the pipe for processing, thereby improving processing efficiency. Moreover, the visual inspection device can acquire the image information of the pipe end face after being cut by the pipe end face cutting device. From the acquired image information of the pipe end face, the cutting situation can be judged. For example, when the blade cannot cut, the steel wire on the pipe end face will form a continuous thread. At this time, the blade life can be determined by visually inspecting the shape of the steel wire on the end face, which can facilitate the timely replacement of the blade. In addition, the visual inspection device can also acquire the condition of the pipe end face after heating and forming, so as to know whether the forming is successful and take remedial measures to improve the shaping effect.

[0082] (2) The pipe end sealing equipment of the present invention is divided into two processes: cutting and forming. In the present invention, the pipe end cutting device can adopt a high-power rotary servo motor to drive a high-precision spindle structure. The spindle end face adopts a standard tool holder interface (such as BT50 / HSK standard interface). The tool holder is fixed on the spindle and is driven by the spindle to rotate and cut. In addition, the spindle can be fixed on the linear guide rail by the base plate and is designed with a lead screw and a feed servo motor. The feed servo motor drives the spindle to perform tool cutting feed. In the present invention, the tool speed and cutting feed speed can be adjusted by the rotary servo motor and the feed servo motor. The pipe end forming device is designed with a heating module and a forming module. The forming module can be fixed above the linear guide rail and is driven forward and backward by the lead screw and the servo motor. When the pipe is in place, the servo motor drives the lead screw to rotate and drive the forming module to move forward and backward.

[0083] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0084] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0085] Figure 1 This is a schematic diagram of the pipe end sealing device in this embodiment.

[0086] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0087] Figure 3 for Figure 1 A magnified structural diagram at point B in the middle.

[0088] Figure 4 This is a structural schematic diagram of the pipe end sealing device in this embodiment from another perspective.

[0089] Figure 5 for Figure 4 A magnified structural diagram at point C.

[0090] Figure 6 This is a schematic diagram of the heating module in this embodiment.

[0091] Figure 7 This is a schematic diagram of the heating module in this embodiment.

[0092] Figure 8 This is a schematic diagram of the hot air inner plate of the heating module in this embodiment.

[0093] Figure 9 This is a schematic diagram of the heating module in this embodiment.

[0094] Figure 10 This is a schematic diagram of the main cutting structure of the pipe end face cutting device in this embodiment.

[0095] Figure 11 This is a schematic diagram of the main cutting structure of the pipe end face cutting device in this embodiment.

[0096] Figure 12 This is a schematic diagram of the main cutting structure of the pipe end face cutting device in this embodiment.

[0097] Figure 13 This is a schematic diagram of the main cutting structure of the pipe end face cutting device in this embodiment.

[0098] Figure 14 for Figure 13 Schematic diagram of the cross-sectional structure along the AA direction.

[0099] Figure 15 This is a schematic diagram of the main cutting structure of the pipe end face cutting device in this embodiment.

[0100] Figure 16 This is a schematic diagram of the reverse mechanism and the pipe moving mechanism in this embodiment.

[0101] Figure 17 This is a schematic diagram of the reverse mechanism and the pipe moving mechanism from another angle in this embodiment.

[0102] Figure 18 This is a schematic diagram of the conveyor frame in this embodiment.

[0103] Figure 19 This is a schematic diagram of the pipe end face cutting device in this embodiment.

[0104] Figure 20 This is a schematic diagram of the pipe end face forming device in this embodiment.

[0105] Explanation of the markings in the image:

[0106] 1. Pipe end face cutting device;

[0107] 11. Cutting main structure; 111. Cutting head; 112. Grooving cutter; 113. End face cutting cutter; 114. Fixing block; 115. Grooving cutter mounting position; 116. Tool adjusting block; 117. Positioning ring; 118. Tool setting block; 119. One-way cutting tool;

[0108] 12. Protective cover;

[0109] 13. Protective cover moving mechanism;

[0110] 14. Chip collection box;

[0111] 2. Pipe end face forming device;

[0112] 21. Heating module; 211. Hot air inner panel; 2111. Hot air outlet; 2112. Rotary air duct; 2113. Guide air duct; 2114. Exhaust port; 212. Hot air outer panel; 213. Air intake device;

[0113] 22. Molding module;

[0114] 3. Pipes;

[0115] 4. Visual inspection device; 41. Inspection module; 42. Three-dimensional position adjustment frame;

[0116] 5. Conveyor frame; 51. Axial conveyor frame; 52. Radial conveyor frame; 53. Pipe moving mechanism; 531. Lifting guide; 532. Bending guide; 533. Bending drive structure; 534. Lifting drive structure; 535. Lifting guide rod; 54. Pressing and fixing mechanism; 55. Reverse mechanism; 551. Reverse component; 552. Reverse drive structure; 5511. Reverse guide ramp; 56. Reverse barrier;

[0117] 6. Limit detection mechanism; 61. Detection rod; 62. Counterweight;

[0118] 7. End fixing mechanism; 71. Upper fixing block; 72. Lower fixing block; 73. Pressing drive structure; 74. Positioning pin; 75. Positioning pin sleeve;

[0119] 8. Positioning ring;

[0120] 9. Limiting ring. Detailed Implementation

[0121] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0122] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0123] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0124] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0125] like Figures 1-3 As shown, this embodiment is a pipe end-face sealing device, including a sealing unit, the sealing unit comprising:

[0126] Pipe end face cutting device 1, used to cut the end face of pipe 3;

[0127] Pipe end face forming device 2 is used to heat and form the pipe end face after it has been cut by pipe end face cutting device 1, so as to seal the pipe end face.

[0128] The visual inspection device 4 is used to acquire image information of the pipe end face after cutting by the pipe end face cutting device 1, and / or to acquire image information of the pipe end face after heating and forming by the pipe end face forming device 2.

[0129] In this embodiment, the visual inspection device 4 can acquire the image information of the pipe end face after it has been cut by the pipe end face cutting device 1. The cutting situation can be judged from the acquired image information of the pipe end face. For example, when the blade cannot cut, the steel wire on the pipe end face will form a continuous thread. At this time, the blade life can be known by visually inspecting the shape of the steel wire on the end face, which can facilitate the timely replacement of the blade.

[0130] Similarly, the visual inspection device 4 can also be used to obtain the condition of the pipe end face after heating and forming, so as to know whether the forming is successful and to take remedial measures.

[0131] In this embodiment, there are multiple ways to determine the image information of the pipe end face. Various existing image recognition methods can be used, which will not be elaborated here.

[0132] In this embodiment, the visual detection device 4 can have various structural forms. In one embodiment, such as... Figure 20 As shown, the visual detection device 4 in this embodiment includes:

[0133] The detection module 41 includes a camera and a detection sensor for sensing the presence of pipes;

[0134] The three-dimensional position adjustment frame 42 is used to install the detection module 41 and can adjust the three-dimensional position of the detection module 41.

[0135] In this embodiment, the detection module 41 can be installed using a three-dimensional adjustment frame, and the position of the detection module 41 can be adjusted using a three-dimensional position adjustment frame 42. The three-dimensional position adjustment frame 42 can have various structural forms, such as by setting support rods located in the X, Y, and Z directions respectively, with the relative positions adjusted through the cooperation of these support rods. Therefore, multiple implementation methods can be adopted, which will not be elaborated upon here.

[0136] In addition, the detection module 41 in this embodiment can also be equipped with an adjustment drive structure for adjusting the camera position. For example, the position of the camera can be changed by a motor drive, thereby obtaining the optimal distance between the camera and the pipe end face, which facilitates focusing and helps to acquire images of the circumferential direction of the pipe end face. In one embodiment, it also includes a conveyor frame 5 for conveying the pipe to the pipe end face cutting device 1 and / or the pipe end face forming device 2 for pipe end face processing.

[0137] In this embodiment, the pipe can be transported to a designated workstation via the conveyor frame 5 for pipe end face cutting and pipe end face forming. The conveyor frame 5 can also have various structural forms; in one embodiment, the conveyor frame 5 includes:

[0138] Axial conveyor frame 51 is used to receive the pipes conveyed in the previous process;

[0139] The radial conveyor frame 52 is located on one side of the axial conveyor frame 51 and includes several radial fixed stations parallel to the conveying direction of the axial conveyor frame 51.

[0140] The pipe moving mechanism 53 is used to transport the pipes on the axial conveying frame 51 to the radial fixed position of the radial conveying frame 52, or to transport the pipes on the radial fixed position of the radial conveying frame 52 to another radial fixed position.

[0141] In this embodiment, sealing units can be set at one or both ends of the radial conveying frame 52. The axial conveying frame 51 receives the pipe conveyed in the previous process, allowing the pipe to be conveyed axially. After being conveyed to a certain position, the pipe moving mechanism moves the pipe on the axial conveying frame 51 to a radially fixed station adjacent to the axial conveying frame 51. At this radially fixed station, the end face of the pipe is cut. After cutting, it is conveyed to the next radially fixed station for heating and forming. In this embodiment, the number of radially fixed stations can be set according to actual needs, and the processing devices corresponding to both ends of each radially fixed station can also be adjusted according to actual needs.

[0142] To ensure the pipe is securely fixed at the radially fixed position, in one embodiment, the conveyor frame 5 further includes:

[0143] The clamping and fixing mechanism 54 is used to clamp the pipe at the radial fixing position so that the pipe is fixed at the radial fixing position.

[0144] In this embodiment, the clamping and fixing mechanism can take many forms. For example, in this embodiment, the clamping and fixing mechanism can include a clamping component and a clamping drive structure. The clamping component has an arc-shaped fixing groove that matches the pipe. The clamping drive structure can include a cylinder. Under the drive of the cylinder, the arc-shaped fixing groove on the clamping component presses against the upper part of the pipe, thereby clamping and fixing the pipe between the radial fixing position and the arc-shaped fixing groove.

[0145] In this embodiment, since multiple radially fixed stations are provided, the clamping components between adjacent stations can be connected by a connecting rod. Only one cylinder needs to be installed to link the clamping components in the same direction between adjacent stations.

[0146] In this embodiment, the pipe moving mechanism has various structural forms and can adopt various pipe moving methods. In one embodiment, the pipe moving mechanism includes:

[0147] The lifting guide 531 has a guide ramp for guiding the pipe to a radially fixed position;

[0148] The bending guide 532 is connected to the lifting guide and can be bent relative to the lifting guide;

[0149] The bending drive structure 533 is used to drive the bending guide to bend relative to the lifting guide.

[0150] The lifting drive structure 534 is used to drive the lifting guide to rise and fall.

[0151] In this embodiment, the lifting guide is driven by the lifting drive structure to lift the pipe, which is then raised. Under the guidance of the guide slope, the pipe can be moved from one radial fixed position to another radial fixed position. When the pipe is conveyed from the axial conveyor frame 51 to the adjacent radial fixed station, it is conveyed using the same principle and method as the lifting guide through the bending guide. In this embodiment, it is set to bend relative to the lifting guide. The main purpose is that when debugging or troubleshooting, since the front-end pipe processing equipment needs to be kept running for a certain period of time, such as 24 hours a day, the maintenance and debugging of this equipment should not affect the continuous supply of pipes from the preceding equipment. Therefore, the design concept is as follows: 1. When this equipment is under troubleshooting, the equipment stops, and the pipes from the preceding equipment are conveyed to the receiving machine at the rear end of the equipment (provided by the customer) through the conveyor roller. 2. Due to the design of the bending guide, when the equipment is being debugged, the bending drive structure drives the bending guide to bend, and the axial conveyor frame 51 can stop conveying pipes to the radial fixed station. However, the lifting and conveying of pipes between the radial fixed stations can continue, without affecting the cutting and heating forming of the pipes at the radial fixed station.

[0152] The aforementioned bending drive structure and lifting drive structure have various structural forms and can be implemented using various existing structural methods, such as cylinders.

[0153] In one embodiment, the axial conveyor frame 51 includes an axial conveyor roller conveyor and a limiting detection mechanism 6 disposed on the axial conveyor roller conveyor; the axial conveyor roller conveyor has a conveying station corresponding to a radially fixed station; the limiting detection mechanism 6 includes:

[0154] The front limit detection module 41 is used to detect whether the pipe output from the previous process is in place;

[0155] The rear limit detection module 41 is used to detect whether the pipe on the axial conveying roller conveyor exceeds the conveying station.

[0156] In this embodiment, the front limit detection module 41 can detect whether the pipe output from the previous process is in place. If it is detected that it is in place, the axial conveying roller conveyor is started for axial conveying. When the axial conveying exceeds the rear limit detection module 41, it means that the pipe has exceeded the conveying station, which means that it has exceeded the optimal conveying position. Therefore, the pipe must not be conveyed from the conveying station to the radial fixed station. If it exceeds the limit, the reverse mechanism 55 can be used to pull the conveying roller conveyor out, and then wait for the next cycle. Therefore, in one embodiment, if Figures 15-17 As shown, the conveyor also includes:

[0157] The pipe reversing mechanism 55 is used to pull the pipe that exceeds the optimal position of the conveying station from the side away from the radial conveying frame onto the axial conveying rollers.

[0158] In this embodiment, the pipe can be pulled out from the side away from the radial conveyor frame by the pipe reversing mechanism 55, that is, pulled out in the opposite direction, and the conveyor roller can wait for the next cycle.

[0159] In this embodiment, the pipe reversing mechanism 55 has various structural forms and can be implemented using multiple structural forms. In one embodiment, the pipe reversing mechanism 55 includes:

[0160] The counter-pull member 551 has a storage position in a retracted state to avoid obstructing the conveying of the tube on the axial conveying roller, and a counter-pull position movable to the axial conveying roller for pulling the tube off the axial conveying roller.

[0161] The reverse drive structure 552 drives the reverse component 551 to switch between the storage position and the reverse position.

[0162] In the aforementioned pipe reversing mechanism 55, when there is pipe on the axial conveying roller, the reversing member 551 is in the storage position under the drive of the reversing drive structure 552, thus not obstructing the conveying of the pipe on the axial conveying roller. When it is necessary to pull the pipe off the axial conveying roller, the reversing drive structure 552 drives the reversing member 551 to the reversing position. During the process from the storage position to the reversing position, the reversing member 551 is in an active state, thus applying a force to the pipe, thereby causing the pipe to be pulled off the axial conveying roller. In this embodiment, the storage position can be located below the axial conveying roller, and the reversing position can be located above the axial conveying roller.

[0163] To ensure the tube is accurately pulled out to the desired position, in one embodiment, the counter-pull member 551 has a counter-pull guide ramp 5511 to guide the tube out. When the tube is pulled out, it falls along the counter-pull guide ramp away from the axial conveyor rollers.

[0164] In one embodiment, one end of the reverse member 551 is rotatably connected to the axial conveyor frame, and the other end is connected to the reverse drive structure 552. The reverse drive structure 552 drives the reverse member 551 to rotate around the rotatable connection with the axial conveyor frame, so that the reverse member 551 changes between the storage position and the reverse position.

[0165] In this embodiment, the reverse lever 551 can have various structural forms, and the reverse lever drive structure 552 can also have various structural forms. For example, in this embodiment, the reverse lever drive structure 552 can adopt a cylinder structure. The cylinder drives the other end of the reverse lever 551 to rotate around the rotating connection, realizing the movement of the reverse lever 551 between the storage position and the toggle position.

[0166] In one embodiment, a reverse baffle 56 is provided on the side of the axial conveyor away from the radial conveyor. The pipes pulled out from the axial conveyor rollers by the pipe reverse mechanism 55 fall to the reverse baffle 56. In this embodiment, by receiving the pipes pulled out from the axial conveyor rollers through the reverse baffle, multiple pipes can be collected at once before rework.

[0167] In this embodiment, the front limit detection module 41 and the rear limit detection module 41 can have various structural forms. For example, they can be configured to include a detection rod 61 mounted on the axial conveyor rollers and capable of rotating relative to the axial conveyor rollers under the action of an external force; and a sensor for sensing changes in the position of the detection rod 61. When the pipe is conveyed across the axial conveyor rollers, a force can be applied to the detection rod 61, causing it to rotate. When the detection rod 61 rotates, the sensor senses the position change information of the detection rod 61 and then sends a sensing signal. In addition, in this embodiment, a counterweight block 62 can also be provided to cooperate with the detection rod 61.

[0168] In this embodiment, the front limit detection module 41 and the rear limit detection module 41 are mainly composed of a detection rod 61, a sensor, a rotating rod, and a counterweight 62. They are mainly used to detect whether the pipe is in place. When the pipe is in place, the detection rod 61 is rotated by the downward pressure of the pipe and disengages from the sensor, indicating that the pipe has been delivered to the correct position.

[0169] In this embodiment, the front limit detection module 41 and the rear limit detection module 41 can be set at the feed end of the axial conveying roller conveyor and arranged sequentially along the conveying direction.

[0170] In one embodiment, the pipe end face cutting device 1 and / or the pipe end face forming device 2 include an end fixing mechanism 7 for fixing the pipe end; the end fixing mechanism 7 includes:

[0171] The upper fixing block 71 has an upper arc-shaped fixing groove that matches the pipe.

[0172] The lower fixing block 72 has a lower arc-shaped fixing groove that matches the pipe.

[0173] The clamping drive structure 73 is used to drive the upper fixing block 71 and / or the lower fixing block 72 to fix the pipe in the area enclosed by the upper arc-shaped fixing groove and the lower arc-shaped fixing groove;

[0174] A positioning mechanism is used to position and fix the upper fixing block 71 and the lower fixing block 72.

[0175] The positioning mechanism consists of a positioning pin 74 disposed on the upper fixed block 71 and / or the lower fixed block 72, and a positioning pin sleeve 75 disposed on the upper fixed block 71 and / or the lower fixed block.

[0176] In this embodiment, the positioning mechanism can serve as a safety measure for tool changing. When changing tools manually, after the positioning pin is inserted into the positioning pin sleeve, it can limit further downward pressure. Since it cannot be pressed down, the safety of the worker during tool changing is ensured.

[0177] In this embodiment, when the pipe is transported to the cutting station or forming station, the upper fixing block 71 and / or the lower fixing block 72 are pressed down by the clamping drive structure to fix the pipe, ensuring that the pipe does not move and facilitating equipment processing.

[0178] In one embodiment, the pipe end forming device 2 includes a heating module 21, a forming module 22, and a positioning ring 8 for positioning the pipe end and movable along the axial direction of the pipe; a limit ring 9 is provided on the heating module 21 and / or the forming module 22; the pipe end forming device 2 also includes a pressure sensor for real-time monitoring of the forming pressure.

[0179] In this embodiment, the pipe's end face needs to be heated before forming. Since the end face heating mainly involves plastic melting, the pipe's positional accuracy is extremely high during forming. Therefore, the pipe is fixed after being inserted into the positioning ring 8 before the heating and forming processes are performed. The advantages of this design are: 1. It ensures accurate positioning of each pipe each time, facilitating heating and forming. 2. When switching between heating and forming fixtures, the pipe remains stationary, maintaining concentricity with the heating and forming modules, thus improving accuracy.

[0180] In addition, in this embodiment, the heating module 21 and the forming module 22 can be positioned by a semi-circular ring. The heating module 21, the forming module 22 and the positioning ring 8 are accurately positioned, and there is no need to adjust the pipe limit stroke each time.

[0181] Furthermore, in this embodiment, the molding module 22 adopts an adjustable pressure method. A pressure sensor is designed at the rear of the molding module 22 to monitor the molding pressure in real time. When a certain pressure is reached, the system stops pressurizing to ensure the molding effect.

[0182] In one embodiment, such as Figure 19 As shown, the pipe end face cutting device 1 in this embodiment includes:

[0183] Cut the main structure 11;

[0184] The protective cover 12 is installed on the main cutting structure and is used to prevent debris from flying off the end face of the pipe being cut by the main cutting structure.

[0185] The protective cover moving mechanism 13 is used to move the protective cover 12 to facilitate the installation and removal of the blades on the cutting main structure.

[0186] The chip collection box 14 is used to collect chip debris;

[0187] The protective cover 12 is equipped with a debris cutting blade.

[0188] In this embodiment, the main function of the protective cover 12 is to prevent debris from flying during pipe end face cutting, ensuring that all debris falls into the waste chip box. In addition, the protective cover 12 can be moved by the protective cover moving mechanism 13. When changing the blade or the cutting tool, the protective cover 12 can be moved away, for example, raised to the top, to facilitate manual blade changing.

[0189] In addition, in this embodiment, the protective cover 12 is provided with a sharp chip cutting blade. Since long chips are easily formed when the pipe end face is cut, the chip strips also rotate at high speed when the blade is rotating at high speed. Therefore, a sharp chip cutting blade is designed on the inner side of the protective cover 12. When the chip strips pass through the chip cutting blades, a relative cutting condition is formed, thereby cutting the chip strips.

[0190] In one embodiment, the device further includes a ground rail, and the pipe end face cutting device 1, the pipe end face forming device 2 and / or the conveyor frame 5 have rollers that cooperate with the ground rail.

[0191] In summary, the pipe end-face sealing equipment of this embodiment consists of two processes: cutting and forming. In this embodiment, the pipe end-face cutting device can employ a high-power rotary servo motor driving a high-precision spindle structure. The spindle end face uses a standard tool holder interface (BT50 / HSK, etc.), with the tool holder fixed to the spindle, which drives the rotational cutting. Additionally, the spindle can be fixed to a linear guide rail via a base plate and is equipped with a lead screw and a feed servo motor. The feed servo motor drives the spindle for tool cutting feed. In this embodiment, both the tool rotation speed and the cutting feed speed can be adjusted via the rotary servo motor and the feed servo motor.

[0192] The pipe end-face forming device is equipped with a heating module and a forming module. The forming module can be fixed above a linear guide rail and is driven forward and backward by a lead screw and a servo motor. When the pipe is in position, the servo motor drives the lead screw to rotate, causing the forming module to move forward and backward.

[0193] This embodiment is designed with a ground rail and rollers under each module, which can move the modules to adapt to the processing needs of pipes of different lengths.

[0194] In this embodiment, through-beam sensors can be designed in both the cutting and forming processes. Their main function is to detect the position of the pipe end face. When the pipe is in position, the cutting spindle and forming spindle move forward. When the sensor detects the pipe end face, it feeds the position back to the system to determine the pipe end face position and accurately locate the pipe position.

[0195] In addition, in the pipe end face cutting device 1 of this embodiment, the spindle can use a common conventional tool holder (BT tool holder, HSK tool holder or standard A2-5\A2-6\A2-8 spindle end face), which facilitates quick blade replacement.

[0196] In addition, the pipe cutting device in this embodiment also includes a chip collection box. The chip collection box can be located directly below the cutting station. The chip collection box can be moved out of the equipment. The chip collection box is also designed with a door, so the chip can be removed without moving the chip collection box out, simply by opening the door.

[0197] The pipe end face cutting device 1 in this embodiment can have various structural forms, and the main cutting structure of the pipe end face cutting device 1 can have various structural forms, for example... Figures 6-9 This is a tool structure for machining grooves on the end face of pipes, which can be applied to the cutting main structure in this embodiment as a tool structure.

[0198] like Figures 6-9 As shown, the tool structure includes a tool body for turning the end face of a tube to form a slot, and a positioning module mounted on the tool body for inserting into the tube to position the tube.

[0199] In this embodiment, the positioning module is inserted into the pipe to fix the pipe. The pipe can be used as the center as the positioning reference, so that the pipe is in a stable state, which makes it easier to machine the end face of the pipe to form a slot.

[0200] In this embodiment, the positioning module has various structural forms. In one embodiment, the positioning module includes:

[0201] The positioning ring 117 can extend into the pipe and contact the inner wall of the pipe to position the pipe.

[0202] The fixing mechanism is used to fix the positioning ring 117 to the tool body and drive the positioning ring 117 to rotate in one direction.

[0203] In this embodiment, the positioning ring 117 can be fixed to the cutter body by a fixing mechanism. The center of the tube is used as the positioning reference. The positioning ring 117 extends into the center of the tube to make the tube and the cutter body concentric. This ensures that the grooving cutter 112 can turn the end face of the tube and form a reference groove with the inner circle as the positioning. When encountering an elliptical tube, the positioning ring 117 can also be used to expand the tube to a circle to ensure the positional accuracy of the tube and the cutter body.

[0204] Furthermore, in this embodiment, the positioning ring 117 can be detachable for easy assembly and disassembly. It can also be replaced with positioning rings 117 that support different pipe inner diameters as needed. Moreover, the fixing mechanism in this embodiment can have various structural forms; for example, it may include a positioning sleeve, a mounting cylinder, and bearings. One-way rotation of the positioning ring 117 can be achieved by setting a one-way bearing. (See...) Figure 5In this embodiment, the fixing mechanism is designed with bearings to ensure that the positioning ring 117 does not rotate with the tool body during the turning process and is fixed together with the tube.

[0205] The positioning ring 117 can rotate in one direction, while the tool body can rotate in two directions. The purpose of this method is that, for example, the positioning ring 117 can only rotate in the opposite direction. When the tool body rotates in the opposite direction, the positioning ring 117 rotates with the tool body and enters the inner hole of the tube while rotating. When the tool body rotates in the forward direction, the positioning ring 117 rotates in the opposite direction. That is, the positioning ring 117 and the tube rotate simultaneously relative to the tool body, and the tool body begins the turning operation.

[0206] In another embodiment, the positioning ring 117 is provided with a chip removal groove. In this embodiment, the positioning ring 117 has a chip removal function. Since plastic strips are easily formed during turning, and these plastic strips are easy to rotate and get caught in the groove between the positioning ring 117 and the tool body, the positioning ring 117 is designed with a chip removal groove to facilitate chip removal.

[0207] In one embodiment, such as Figure 9 As shown, the positioning module also includes:

[0208] A one-way blade 119 is mounted on a positioning ring 117 and is used to remove burrs from the end face of the pipe.

[0209] During the pre-processing of the pipe, burrs will be formed after cutting, which will affect the insertion of the positioning ring 117 into the inner diameter of the pipe. Therefore, in this embodiment, a one-way blade 119 is provided to remove the burrs on the end face of the pipe. For example, when the blade rotates in the opposite direction, the positioning ring 117 rotates with the blade. The positioning ring 117 enters the inner hole of the pipe while rotating. During the process of the positioning ring 117 rotating into the inner diameter of the pipe, the one-way blade 119 on the positioning ring 117 removes the burrs on the end face of the pipe.

[0210] In this embodiment, the blade body has various structural forms, and multiple structural forms can be adopted. In one embodiment, the blade body includes:

[0211] Grooving tool 112 is used to turn the end face of a tube to form a groove;

[0212] End face turning tool 113, used for turning flat end faces;

[0213] The cutter head 111 has a grooving tool mounting position 115 for mounting a grooving tool 112 and a face turning tool 113 mounting position 3 for mounting a face turning tool 113.

[0214] The fixing block 114 is used to fix the grooving cutter 112 at the mounting position of the grooving cutter 112.

[0215] In this embodiment, one or more grooving cutters 112 can be set, which can be set according to actual needs and arranged along the circumference of the cutter head 111. In addition, an end face cutting cutter 113 is also set, which can flatten the end face of the pipe, including removing end face burrs, so that the end face of the pipe is flat. The number of end face cutting cutters 113 can be set to one, and the setting position can also be set in the circumferential direction of the cutter head 111, and located on the same circumference as the grooving cutter 112.

[0216] The grooving cutter 112 is pressed and fixed at the mounting position of the grooving cutter 112 by the fixing block 114. In order to facilitate disassembly and adjustment, the fixing block 114 can be detachably fixed at this position by fasteners.

[0217] In one embodiment, the mounting position has a first adjusting slope, and the fixing block 114 has a second adjusting slope that abuts against the first adjusting slope. When the fixing block 114 moves along the first adjusting slope, it can form mounting areas of different sizes at the mounting position of the grooving cutter 112, so as to install grooving cutters 112 of different sizes.

[0218] In this embodiment, when the fixing block 114 moves along the first adjusting slope, it can form installation areas of different sizes. This design allows for the installation of grooving cutters 112 of different sizes to meet various needs. Furthermore, when the fixing block 114 moves towards the first adjusting slope, it can press against the grooving cutter 112 shank, applying pressure to fix it in place at the mounting position. When the fixing block moves in the opposite direction towards the first adjusting slope, it releases, allowing the grooving cutter 112 shank to move, for example, up or down, thus adjusting the position of the grooving cutter 112 to accommodate cutting operations of different pipe diameters.

[0219] In one embodiment, the blade body further includes:

[0220] The position adjustment mechanism is located at the grooving tool mounting position 115 and is used to adjust the position of the grooving tool 112.

[0221] The grooving cutter 112 installed at the mounting position of the grooving cutter 112 can also adjust the position of the grooving cutter 112 at the mounting position through the position adjustment mechanism, so as to realize the turning of pipes of different diameters, that is, to realize the processing of pipes of different sizes.

[0222] In this embodiment, the position adjustment mechanism can have various structural forms, and multiple structural forms can be adopted.

[0223] In one embodiment, the position adjustment mechanism includes a tool adjusting block 116 and an adjusting bolt disposed at the mounting position of the grooving tool 112.

[0224] In this embodiment, the adjusting block 116 can be pressed against the grooving cutter 112. By replacing the adjusting block with a different size, the radial position of the grooving cutter 112 can be adjusted. When there are multiple grooving cutters 112, in order to ensure that the radial position of each grooving cutter 112 is uniform, for example, the adjusting block of the same standard can be used to ensure that the radial position of each grooving cutter 112 is uniform. In order to further improve the accuracy, the position of the fine-tuning adjusting block 116 can also be adjusted by adjusting the adjusting bolt.

[0225] Additionally, it should be noted that the end face turning tool 113 in this embodiment can also be fixed in the same way as the grooving tool 112, which will not be elaborated here.

[0226] In one embodiment, the cutter head 111 is provided with air passages for blowing away chips generated during turning by the grooving cutter 112 and / or cooling the grooving cutter 112.

[0227] Since the grooving cutter 112 is prone to chip accumulation due to high temperature when turning pipes, such as PVC plastic materials, in this embodiment, compressed air can be introduced through the air blowing channel to discharge the compressed air to the grooving cutter 112, which can cool the grooving cutter 112 by blowing away chips.

[0228] In this embodiment, the air blowing channel has various structural forms. In one embodiment, the air blowing channel includes a main air channel and a branch air channel that delivers the gas from the main air channel to each of the cutting tools 112.

[0229] In this embodiment, the air distribution channel can extend to the grooving cutter 112. When there are multiple grooving cutters 112, multiple air distribution channels can be set accordingly. For example, in this embodiment, the main air channel can be located at the center of the cutter head 111, and the air distribution channel includes a radial section arranged along the radial direction of the cutter head 111 and a vertical section arranged along the vertical direction. The vertical section extends all the way to the surface of the cutter head 111 to form air holes.

[0230] In this embodiment, there can be one or more grooving tools 112. In one embodiment, there are multiple grooving tools 112, such as... Figure 6 As shown, the positioning module also includes:

[0231] The tool block 118 is mounted on the positioning ring 117, and can correspond to the position of each grooving tool 112 under the rotation of the positioning ring 117, so as to align the tool tips of each grooving tool 112 with the same end face.

[0232] When there are multiple grooving cutters 112, in order to ensure that the cutting tips of each grooving cutter 112 are on the same end face during turning, tool setting can be performed by tool setting block 118. Specifically, since the tool setting block 118 is set on the positioning ring 117, the tool setting block 118 is rotated to the position of each grooving cutter 112 by rotating the positioning ring 117. Then, the cutting tip of the grooving cutter 112 is adjusted to be flush with the end face of the tool setting block 118, thus achieving tool setting.

[0233] In addition, there are multiple ways to install the tool block 118 in this embodiment. It can be set to a detachable installation method, which is convenient for disassembly and assembly, and also convenient for installing tool blocks 118 of different sizes.

[0234] As can be seen from the above, this embodiment can accurately, stably and reliably complete the turning and removal of internal metal (steel wire, steel strip and other metal materials) of steel wire skeleton and steel strip skeleton pipes, while ensuring pipe fixation, improving tool life and avoiding problems such as chip entanglement.

[0235] In addition, the heating module 21 in the pipe end face forming device 2 in this embodiment can also have various structural forms, for example, Figure 6 and Figure 9 This is a heating structure for the three end faces of a metal-framed tube, which can be applied to the heating module in this embodiment for heating the tube. For example... Figure 6 and Figure 9 As shown, the heating structure includes a heating mechanism having an annular heating cavity into which the end of the pipe 3 extends and into which hot air can be introduced to heat the pipe 3.

[0236] This embodiment heats the pipe 3 (made of PE or PVC) by introducing a heating airflow into the annular heating chamber. The high-temperature airflow is used as the heating medium to heat the pipe 3. Air can be used as the heating medium, which can prevent the plastic material (PE or PVC material) from sticking to the heating structure after heating.

[0237] In this embodiment, the heating mechanism has various structural forms. For example, in one embodiment, the heating mechanism includes a hot air inner plate 211 and a hot air outer plate 212 that passes through the outside of the hot air inner plate 211. A first annular heating groove is provided on the outer wall of the hot air inner plate 211, and a second annular heating groove corresponding to the position of the first annular heating groove is provided on the inner wall of the hot air outer plate 212. The area enclosed by the first annular heating groove and the second annular heating groove forms an annular heating cavity.

[0238] In this embodiment, the hot air inner plate 211 is positioned at the end of the pipe 3 that needs to be heated, and the hot air outer plate 212 is sleeved on the outside of the hot air inner plate 211, so that the end of the pipe 3 is located between the hot air inner plate 211 and the hot air outer plate 212. The first annular heating groove on the hot air inner plate 211 and the second annular heating groove on the hot air outer plate 212 form an annular heating cavity, and the hot air enters the annular heating cavity to heat the pipe 3.

[0239] In one embodiment, the hot air inner plate 211 further includes a positioning part that mates with the interior of the pipe 3. In this embodiment, the positioning part mates with the interior of the pipe 3 to facilitate fixing the pipe 3.

[0240] In this embodiment, there are multiple ways to introduce hot air into the annular heating cavity. For example, the heating cavity can have a hot air inlet. In one embodiment, the hot air inner plate 211 has an airflow duct for introducing hot air into the annular heating cavity, and a hot air outlet 2111 connected to the hot air input device and communicating with the airflow duct.

[0241] In this embodiment, hot air is introduced through the hot air inlet 2111 of the hot air inner plate 211 by a hot air input device, and then guided into the annular heating cavity through an airflow duct. The airflow duct can have various structural forms to ensure uniform hot air distribution. Figure 8 As shown, in one embodiment, the hot air vent 2111 is located at the center of the hot air inner plate 211, and the airflow duct includes:

[0242] Several swirling air ducts 2112 are arranged radially around the center of the hot air inner plate 211.

[0243] Several guiding air ducts 2113 are located on the side wall of the hot air inner plate 211, with one end connected to the swirling air duct 2112 and the other end connected to the annular heating cavity.

[0244] In this embodiment, the hot air inner plate 211 mixes with the swirling air duct 2112 and the direct air duct to fully mix the hot air, ensuring that the temperature and flow rate of the hot air diffusing from the center to the circumference are uniform. Finally, the hot air is guided into the heating chamber through the guide air duct 2113. That is, the end face is designed as a swirling air duct 2112 to distribute the hot air flow evenly from the center to the surrounding area, ensuring a consistent temperature.

[0245] In this embodiment, the swirling air duct 2112 and the guiding air duct 2113 are evenly arranged around the hot air inner plate 211, and their number can be set according to requirements.

[0246] In this embodiment, the guiding air duct 2113 has various structural forms. In one embodiment, the guiding air duct 2113 is arranged at an angle.

[0247] In this embodiment, the guide air duct 2113 around the hot air inner plate 211 is designed to be inclined, which can ensure that the high-temperature airflow blown towards the end face of the pipe 3 is oblique. One of its advantages is that the high-temperature airflow is mixed evenly again, avoiding uneven heating of the end face of the pipe 3 due to uneven distribution of high-temperature airflow. Another advantage is that the airflow is blown towards the end face of the pipe 3 at an angle, making the end face of the pipe 3 easier to heat up.

[0248] In one embodiment, the width of the guide air duct 2113 is smaller than that of the swirling air duct 2112, and the number of guide air ducts 2113 is greater than the number of swirling air ducts 2112.

[0249] In this embodiment, the width of the guiding air duct is smaller than that of the swirling air duct. The high-temperature hot air, after passing through the swirling air duct 2112 to the guiding air duct 2113, will contract and narrow. After the high-temperature hot air contracts and narrows, it will all be blown towards the notch cut on the end face of the pipe 3. This mainly ensures: 1. The high-temperature airflow is concentrated and not dispersed; 2. The airflow is only blown towards the notch, and the heat is conducted to the inner and outer sides from the notch, ultimately forming a hot cavity on both sides of the pipe 3 to heat the end face of the pipe 3. In order to avoid the airflow being reduced due to the narrowing of the air duct, the number of guiding air ducts in this invention can be greater than the number of swirling air ducts. The hot air coming out of one swirling air duct can enter the annular heating cavity through multiple guiding air ducts.

[0250] When using this embodiment to heat the pipe 3, in order to improve processing efficiency, a heating structure can be connected to each end of the pipe 3 for heating. However, during heating, because the inside of the pipe 3 is not ventilated, it is easy to affect the uniformity of heating inside the pipe 3. Figure 8 As shown, in one embodiment, the hot air inner plate 211 is provided with an exhaust port 2114 that can be connected to the suction device 214. Exhaust is performed by connecting the exhaust port to the suction device 214, such as an axial flow compressor.

[0251] This embodiment applies the aforementioned heating structure to a heating system. Therefore, this embodiment provides a heating system for the end face of a metal skeleton tube, including a body with at least one heating unit. The heating unit includes...

[0252] The heating structure described above;

[0253] A hot air input device connected to the hot air inlet 2111 of the heating structure;

[0254] An air intake device 214 is connected to the exhaust hole on the hot air inner plate 211 in the heating structure.

[0255] In the heating system of this embodiment, at least one heating unit can be provided, for example, two units can be provided, and the two heating units can heat the pipe 3 respectively, thereby improving processing efficiency.

[0256] In this embodiment, the hot air input device and the suction device 214 can have various structural forms and can adopt various existing structural forms. In one embodiment, the hot air input device includes a hot air pipe; the suction device 214 includes an axial flow machine and a suction device, and the suction device can adopt various existing conventional structures.

[0257] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A pipe end-face sealing device, characterized in that, Includes a sealing unit, the sealing unit comprising: Pipe end face cutting device, used for cutting pipe end faces; Pipe end face forming device is used to heat and form the pipe end face after it has been cut by the pipe end face cutting device, so as to seal the pipe end face. A visual inspection device is used to acquire image information of the pipe end face after cutting by the pipe end face cutting device, and / or to acquire image information of the pipe end face after heating and forming by the pipe end face forming device. It also includes a conveyor frame for conveying pipes to a pipe end face cutting device and / or a pipe end face forming device for pipe end face processing; The conveyor frame includes: Axial conveyor frame, used to receive pipes conveyed in the previous process; A radial conveyor frame is located on one side of the axial conveyor frame and includes several radially fixed stations parallel to the conveying direction of the axial conveyor frame. A pipe moving mechanism is used to transport pipes on the axial conveying frame to a radial fixed position on the radial conveying frame, or to transport pipes on a radial fixed position on the radial conveying frame to another radial fixed position. The axial conveyor frame includes an axial conveyor roller conveyor and a limiting detection mechanism disposed on the axial conveyor roller conveyor; the axial conveyor roller conveyor has a conveying station corresponding to the radial fixed station; the limiting detection mechanism includes: The front limit detection module is used to detect whether the pipe output from the previous process is in place; The rear limit detection module is used to detect whether the pipe on the axial conveying roller conveyor exceeds the optimal conveying position of the conveying station; The conveyor frame also includes: A pipe reversing mechanism is used to pull out pipes that are beyond the optimal conveying position of the conveying station from the axial conveying rollers in a direction away from the radial conveying frame. The pipe end face cutting device and / or the pipe end face forming device include an end fixing mechanism for fixing the pipe end; the end fixing mechanism includes: The upper fixing block has an upper arc-shaped fixing groove that mates with the pipe. The lower fixing block has a lower arc-shaped fixing groove that mates with the pipe. A clamping drive structure is used to drive the upper fixing block and / or the lower fixing block to fix the pipe in the area enclosed by the upper arc-shaped fixing groove and the lower arc-shaped fixing groove; A positioning mechanism is used to position and fix the upper fixing block and the lower fixing block; The positioning mechanism consists of a positioning pin disposed on the upper fixed block and / or the lower fixed block, and a positioning pin sleeve disposed on the upper fixed block and / or the lower fixed block; The pipe end face forming device includes a heating module, a forming module, and a positioning ring for positioning the pipe end and movable along the axial direction of the pipe; the heating module and / or the forming module are provided with limit rings; the pipe end face forming device also includes a pressure sensor for real-time monitoring of forming pressure.

2. The pipe end sealing device according to claim 1, characterized in that, The visual inspection device includes: The detection module includes a camera and a detection sensor for sensing the presence of pipes; A three-dimensional position adjustment frame is used to install the detection module and can adjust the three-dimensional position of the detection module.

3. The pipe end sealing device according to claim 1, characterized in that, The conveyor frame also includes: A clamping and fixing mechanism is used to clamp the pipe at the radial fixing position so that the pipe is fixed at the radial fixing position.

4. The pipe end-face sealing device according to claim 3, characterized in that, The pipe moving mechanism includes: The lifting guide has a guide ramp for guiding the pipe to the radially fixed position; A bending guide is connected to the lifting guide and can be bent relative to the lifting guide; A bending drive structure is used to drive the bending guide to bend relative to the lifting guide; A lifting drive structure is used to drive the lifting guide to rise and fall.

5. The pipe end-face sealing device according to claim 1, characterized in that, The pipe end face cutting device includes: Cut the main structure; A protective cover is installed over the main cutting structure to prevent debris from splashing during the cutting of the pipe end face. A protective cover moving mechanism is used to move the protective cover to facilitate the installation and removal of blades from the cutting main structure. A chip collection box is used to collect chip debris. The protective cover is equipped with a debris cutting blade.

6. The pipe end-face sealing device according to claim 1, characterized in that, It also includes a ground rail, and the pipe end face cutting device, pipe end face forming device and / or conveyor frame have rollers that cooperate with the ground rail; The pipe reversing mechanism includes: The counter-pull member has a storage position in a retracted state to avoid obstructing the conveying of the tube on the axial conveying roller, and a counter-pull position movable to the axial conveying roller for pulling the tube off the axial conveying roller. A reverse drive structure drives the reverse element to switch between the storage position and the reverse position; The reverse-pulling component has a reverse-pulling guide slope to guide the tube out; one end of the reverse-pulling component is rotatably connected to the axial conveying frame, and the other end is connected to the reverse-pulling drive structure. The reverse-pulling drive structure drives the reverse-pulling component to rotate around the rotatable connection with the axial conveying frame, so that the reverse-pulling component changes between the storage position and the reverse-pulling position. A reverse baffle is provided on the side of the axial conveyor away from the radial conveyor, and the pipe reverse mechanism pulls the pipe off the axial conveyor roller and it falls to the reverse baffle.

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