A pipe hot-melt butt-jointing method and a butt-joint joint device thereof

Abstract

The present invention relates to the technical field of pipe processing, and more specifically, to a pipe hot-melt butt-jointing method and a butt-jointing device thereof, comprising a heat insulation cover and a heating device, wherein the heat insulation cover is sleeved with the heating device, and the butt-jointing device further comprises an intelligent control device and a plurality of retractable temperature sensing devices, wherein the heating device and the temperature sensing device are both communicatively connected with the intelligent control device. The present invention can match the corresponding heating temperature and time according to the different materials and wall thicknesses of the pipes, save manpower and material resources, and improve the heating efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe processing, and more specifically, to a pipe hot-melt butt-jointing method and a butt-jointing device thereof. Background Art

[0002] At present, most of the pipe connection methods on the market use metal connectors to lock the connection through screws, or use flanges, sleeves and other connectors for locking connection. However, these connection methods require multiple connectors and locking parts. The connection process is difficult and the disassembly and assembly are cumbersome. There are protrusions of connectors on the surface and inner wall of the connection of the pipe. At the same time, metal connectors are prone to corrosion and rust, causing them to fall off and be damaged, causing the pipe to break, posing a safety hazard. Although there are hot melt heating equipment to connect the end faces of pipes, most of these hot melt equipment have a single function and only have a heating function. It is impossible to set different heating temperatures and times according to different materials, wall thicknesses and other parameters of the pipe; and the heating efficiency is low, and the temperature is often too high to cause the end face to be damaged, or the temperature is too low to cause the pipe to be unable to be firmly connected. In addition, after the pipe is heated, it is necessary to move the pipe manually, wasting manpower and material resources. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiency of the existing pipe hot-melt equipment having a single function, and to provide a pipe hot-melt butt joint method and a butt joint device thereof, which can match the corresponding heating temperature and time according to the different materials and wall thicknesses of the pipes, save manpower and material resources, and improve heating efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] Provided is a pipe hot-melt butt joint device, comprising a heat insulation cover and a heating device, wherein the heat insulation cover is sleeved with the heating device, and the butt joint device further comprises an intelligent control device and a plurality of retractable temperature sensing devices, wherein the heating device and the temperature sensing device are both communicatively connected with the intelligent control device.

[0006] The present invention includes a pipe hot-melt butt-jointing device, wherein a heating device is used to heat the pipe; a temperature sensing device can remain extended during the heating process of the pipe end surface and is used to measure the pipe temperature in real time, and retracts after heating is completed and no longer contacts the pipe, thereby reducing unnecessary measurements; an intelligent control device is used to control the heating of the heating device and control the extension and retraction of the temperature sensing device.

[0007] Preferably, the intelligent control device includes a human-machine interaction interface and a PLC controller connected to the human-machine interaction interface. The setting of the human-machine interaction interface enables the intelligent control device to perform human-machine interaction, and the setting of the PLC controller enables the intelligent control device to effectively control the heating device and the temperature sensing device.

[0008] Preferably, the heating device comprises a heating block group and a clamping mechanism connected to the heating block group, and the clamping mechanism is in communication connection with the intelligent control device. The setting of the clamping mechanism enables the heating device to be tightened and in close contact with the pipe end surface when the pipe needs to be heated, and to be relaxed and no longer in contact with the pipe end surface after heating is completed, so as to prevent the residual heat of the heating device from continuously heating the pipe end surface and affecting the stability of the connection.

[0009] Preferably, the temperature sensing device comprises a temperature sensor and a first cylinder, wherein the probe of the temperature sensor is connected to the piston rod of the first cylinder; the first cylinder is electrically connected to the heat shield and the PLC controller. The arrangement of the temperature sensor and the first cylinder enables the temperature sensing device to be retractable.

[0010] Preferably, an isolation transmitter is connected between the PLC controller and the temperature sensor, and an AC contactor is connected between the PLC controller and the heating block group. The provision of the isolation transmitter and the AC contactor enables the temperature sensor device to be controllable in extension and contraction and the heating device to be controllable in extension and contraction.

[0011] Preferably, a temperature display and control device is communicatively connected between the isolation transmitter and the PLC controller, and the AC contactor is communicatively connected to the temperature display and control device. The setting of the temperature display and control device enables the docking device to adjust the heating temperature and time by manual input on the temperature display and control device.

[0012] Preferably, a conveying device is provided on both sides of the heat shield; and a warning device is also connected to the intelligent control device. The provision of the conveying device can reduce the manpower required for manually moving the pipe; and the provision of the warning device can be used to remind the operator at certain important nodes in the pipe heating process.

[0013] The present invention also provides a method for hot-melt butt jointing of pipes, wherein the intelligent control device has the function of storing and querying historical data, and the butt jointing method comprises the following steps:

[0014] S1. Trimming the connection port surface of the first pipe and the second pipe to be connected;

[0015] S2. placing the first pipe and the second pipe on the conveying device, and inputting the specification data of the pipe to be connected on the intelligent control device;

[0016] S3. Continue to apply pressure to the first pipe and the second pipe so that the ends of the two face each other;

[0017] S4. After receiving the measurement signal from the intelligent control device, the temperature sensing device extends out, contacts the first pipe and the second pipe and measures the temperature, and feeds back the measured temperature data to the intelligent control device;

[0018] S5. After receiving the heating signal from the intelligent control device, the clamping mechanism controls the heating block group to clamp the first pipe and the second pipe. The intelligent control device automatically matches the corresponding preheating, heating, and hot-melt data according to the specification data of the pipe, and controls the heating device to heat the port surface;

[0019] S6. When the port surface is heated to a molten state, the intelligent control device controls the clamping mechanism to relax and stop heating, and controls the temperature sensing device to retract and stop measuring;

[0020] S7. The conveying device transports the first pipe and the second pipe that have been docked to a place away from the heating device.

[0021] The present invention also includes a docking method for an intelligent hot-melt butt-jointing device for pipes, by matching the corresponding specifications of the stored heating data with the specification data of the pipes to be connected on the intelligent control device, and outputting a corresponding heating signal to the heating device to tighten it and make it closely contact with the end surface of the pipe, so as to perform hot-melt butt-jointing on the pipes; at the same time, the intelligent control device controls the temperature sensor device to measure the temperature of the pipe being heated, and feeds back the corresponding temperature data to the intelligent control device in real time, so as to facilitate real-time monitoring by the operating personnel and improve the heating efficiency and success rate of the pipes.

[0022] In order to enable the intelligent control device to match the corresponding data and output it, the PLC controller has the function of storing and querying historical data. In step S1, the preheating, heating, and hot-melt temperatures and times corresponding to pipes of different materials and wall thicknesses are input through the human-computer interaction interface and stored in the PLC controller; in step S5, the PLC controller obtains the corresponding preheating, heating, and hot-melt temperatures and times by querying the historical data and matching it with the specification data of the pipe to be connected input in step S2.

[0023] In order to facilitate manual input of heating-related data when encountering special circumstances, in step S2, when the specification data of the pipe to be connected cannot match the data stored in the intelligent control device, the preheating, heating, and hot-melting temperatures and times of the pipe to be connected can be manually input in the temperature display and control device. After receiving the heating signal from the temperature display and control device, the heating device starts to heat the port surface of the pipe and stops heating when the port surface becomes a molten state.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The arrangement of the clamping mechanism and the heating block group enables the heating device to be tightened and in close contact with the pipe end surface when the pipe needs to be heated, and to be relaxed and no longer in contact with the pipe end surface after heating is completed, thereby preventing the residual heat of the heating device from continuously heating the pipe end surface and affecting the stability of the connection.

[0026] (2) The retractable temperature sensor is set up so that it can remain extended during the heating process of the pipe end surface and be used to measure the pipe temperature in real time. After the heating is completed, it retracts and no longer contacts the pipe, thereby reducing unnecessary measurements.

[0027] (3) The setting of the temperature display and control device enables the docking device to adjust the heating temperature and time through manual input to deal with special situations.

[0028] (4) The setting of the conveying device can reduce the manpower required for manually moving the pipes and improve the moving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The present invention is a schematic structural diagram of a pipe hot-melt butt-jointing device.

[0030] Figure 2 for Figure 1 main view.

[0031] Figure 3 for Figure 2 Left view of .

[0032] Figure 4 for Figure 3 Cross-sectional view along the BB direction.

[0033] Figure 5 for Figure 4 Enlarged schematic diagram of part I in the middle.

[0034] Figure 6 for Figure 2 Cross-sectional view along the AA direction.

[0035] Figure 7 It is a structural schematic diagram of the heating device of the present invention in the retracted and extended state.

[0036] Figure 8 A schematic diagram of a pipe hot-melt butt joint device according to the present invention Figure 1 .

[0037] Fig. 9 A schematic diagram of a pipe hot-melt butt joint device according to the present invention Figure 2 .

[0038] Fig.10 The present invention is a flow chart of a method for hot-melt butt welding of pipes.

[0039] The illustrations are as follows:

[0040] 1-transmission device, 2-intelligent control device, 21-human-machine interface, 22-PLC controller, 3-temperature display and control device, 31-isolation transmitter, 32-AC contactor, 4-warning device, 5-temperature sensing device, 51-temperature sensor, 52-first cylinder, 6-heat insulation cover, 7-heating device, 71-heating block group, 72-clamping mechanism, 721-second cylinder, 722-hinge, 723-fixed seat, 8-first pipe, 9-second pipe. DETAILED DESCRIPTION

[0041] The present invention is further described below in conjunction with specific implementation methods. The accompanying drawings are only used for exemplary descriptions and are only schematic diagrams, not actual drawings, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0042] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0043] Example 1

[0044] like Figures 1 to 8 The figure shows a first embodiment of a pipe hot-melt butt joint device of the present invention, comprising a heat insulation cover 6 and a heating device 7, wherein the heat insulation cover 6 is sleeved with the heating device 7, and the butt joint device further comprises an intelligent control device 2 and a plurality of retractable temperature sensing devices 5, wherein the heating device 7 and the temperature sensing device 5 are both communicatively connected with the intelligent control device 2.

[0045] The heating device 7 is used to heat the pipe; the temperature sensing device 5 can remain extended during the heating process of the pipe end surface and is used to measure the pipe temperature in real time. After the heating is completed, it retracts and no longer contacts the pipe, reducing unnecessary measurements; the intelligent control device 2 is used to control the heating of the heating device 7 and the extension and retraction of the temperature sensing device 5; the heat insulation cover 6 is sleeved on the outside of the heating device 7 for heat insulation to prevent operators from being scalded.

[0046] In addition, the intelligent control device 2 includes a human-machine interaction interface 21 and a PLC controller 22 that is communicatively connected to the human-machine interaction interface 21. The setting of the human-machine interaction interface 21 enables the intelligent control device 2 to realize human-machine interaction, and the setting of the PLC controller 22 enables the intelligent control device 2 to effectively control the heating device 7 and the temperature sensing device 5. In this embodiment, the human-machine interaction interface 21 and the PLC controller 22 are electrically connected via a 232 / 485 converter.

[0047] The heating device 7 includes a heating block group 71 and a clamping mechanism 72 connected to the heating block group 71, and the clamping mechanism 72 is connected to the intelligent control device 2 in communication. The setting of the clamping mechanism 72 enables the heating device to be tightened and in close contact with the pipe end surface when it is necessary to heat the pipe, and to be relaxed and no longer in contact with the pipe end surface after heating is completed, so as to prevent the residual heat of the heating device 7 from continuously heating the pipe end surface and affecting the stability of the connection. Specifically, the clamping mechanism 72 includes a second cylinder 721, a hinge 722 and a fixing seat 723, and the heating block group 71 includes a plurality of heating blocks, and the plurality of heating blocks are hinged end to end to form a ring, such as Figure 6 to Figure 7 As shown. In this embodiment, four heating blocks with a 1 / 4 ring structure are provided, and the heating blocks are connected by hinges 722; the end of the piston rod of the second cylinder 721 is inserted into the heat insulation cover 6 and connected to one of the heating blocks, and the cylinder seat of the second cylinder 721 is hinged with the fixed seat 723, and the second cylinder 721 is also connected to the PLC controller 22 for communication; the fixed seat 723 is also fixedly connected to the heat insulation cover 6, so that the second cylinder 721 can control the contact between the heating block and the pipe by the extension and contraction of the piston rod. It should be noted that the cover body volume of the heat insulation cover 6 is sufficient to accommodate the movement of the heating block, so that the heating block can be extended and retracted in the heating cover 6.

[0048] The temperature sensing device 5 includes a temperature sensor 51 and a first cylinder 52. The probe of the temperature sensor 51 is connected to the piston rod of the first cylinder 52. The first cylinder 52 is connected to the heat shield 6 and is electrically connected to the PLC controller 22. The arrangement of the temperature sensor 51 and the first cylinder 52 enables the temperature sensing device 5 to be scalable. Figures 4 to 5 As shown, in this embodiment, the probe of the temperature sensor 51 is connected to the end of the piston rod of the first cylinder 52; two temperature sensing devices 5 are provided in the docking device, respectively used to measure the temperature of the two pipes to be docked. Two notches are provided on the heat shield 6, so that the piston rod of the first cylinder 52 can drive the probe of the temperature sensor 51 to extend into contact with the surface of the pipe.

[0049] Among them, an isolation transmitter 31 is connected to communicate between the PLC controller 22 and the temperature sensor 51, and an AC contactor 32 is connected to communicate between the PLC controller 22 and the heating block group 71. The setting of the isolation transmitter 31 and the AC contactor 32 makes the extension and retraction of the temperature sensing device 5 controllable and the retraction and extension of the heating device 7 controllable. In this embodiment, the isolation transmitter 31 is a 1-to-2 signal isolation transmitter, which is electrically connected to the two temperature sensors 51 and is used to control the two temperature sensors 51 at the same time; the AC contactor 32 is a KM AC contactor, and the heating block group 71 is heated or not heated by the attraction and disconnection of the KM AC contactor.

[0050] Wherein, a conveying device 1 is provided on both sides of the heat shield 6. The provision of the conveying device 1 can reduce the manpower required for manually moving the pipe. Figures 1 to 4 As shown, in this embodiment, the conveying device 1 is a conveyor belt for moving pipes. Specifically, the conveying device 1 is a conveyor belt, and the start and stop of the conveyor belt can be controlled by manually operating a switch button on the conveyor belt.

[0051] The intelligent control device 2 is connected to a warning device 4. The warning device 4 can be used to remind operators at certain important nodes in the pipe heating process, such as when the preheating, heating, and hot melting stages are completed. Figures 1 to 4 ,as well as Figure 7 As shown, in this embodiment, the warning device 4 includes an LED light and a buzzer, and both the LED light and the buzzer are electrically connected to the PLC controller 22.

[0052] Example 2

[0053] This embodiment is similar to embodiment 1, except that Fig. 9 As shown, the temperature display and control device 3 is connected between the isolation transmitter 31 and the PLC controller 22, and the AC contactor 32 is connected to the temperature display and control device 3. The setting of the temperature display and control device 3 enables the docking device to adjust the heating temperature and time by manual input, which can be used for some special materials of pipes or special wall thicknesses, and the data is not entered into the PLC controller 22. In this embodiment, the PLC controller 22 and the temperature display and control device 3 are electrically connected through a 232 / 485 converter; the temperature display and control device 3 is the Hongrun digital display temperature controller high-precision PID temperature controller intelligent digital thermostat instrument E300.

[0054] Example 3

[0055] like Figures 1 to 7 , Figure 8 , Fig.10 The first embodiment of the method for hot-melt butt jointing of pipes of the present invention is shown. The intelligent control device 2 has the function of storing and querying historical data. The butt jointing method includes the following steps:

[0056] S1. Trimming the connection port surface of the first pipe 8 and the second pipe 9 to be docked;

[0057] S2. The first pipe 8 and the second pipe 9 are placed on the conveying device 1, and the specification data of the pipe to be connected is input on the intelligent control device 2;

[0058] S3. Continue to apply pressure to the first tube 8 and the second tube 9 so that the ports of the two face each other;

[0059] S4. After receiving the measurement signal from the intelligent control device 2, the temperature sensing device 5 extends out, contacts the first pipe 8 and the second pipe 9 and measures the temperature, and feeds back the measured temperature data to the intelligent control device 2;

[0060] S5. After receiving the heating signal from the intelligent control device 2, the clamping mechanism 72 controls the heating block group 71 to clamp the first pipe 8 and the second pipe 9. The intelligent control device 2 automatically matches the corresponding preheating, heating, and hot-melt data according to the specification data of the pipe, and controls the heating device 7 to heat the port surface;

[0061] S6. When the port surface is heated to a molten state, the intelligent control device 2 controls the clamping mechanism 72 to relax and stop heating, and controls the temperature sensor device 5 to retract and stop measuring.

[0062] S7. The conveying device 1 transports the first pipe 8 and the second pipe 9 that have been docked to a place away from the heating device 7.

[0063] By matching the corresponding specifications of the stored heating data with the specification data of the pipe to be connected on the intelligent control device 2, and outputting the corresponding heating signal to the heating device 7 to tighten it and make close contact with the end surface of the pipe, the pipe is hot-melt-jointed; at the same time, the intelligent control device 2 controls the temperature sensor device 5 to measure the temperature of the pipe being heated, and feeds back the corresponding temperature data to the intelligent control device 2 in real time, so as to facilitate real-time monitoring by the operating personnel and improve the heating efficiency and success rate of the pipe.

[0064] Specifically, the PLC controller 22 has the function of storing and querying historical data. In step S1, in addition to trimming the connection port surface of the first pipe 8 and the second pipe 9 to be connected, the temperature and time data of preheating, heating, and hot melting corresponding to different materials corresponding to pipes of different wall thicknesses need to be input through the human-computer interaction interface 21 and stored in the PLC controller 22.

[0065] Specifically, in step S2, the first pipe 8 and the second pipe 9 are respectively placed on the conveyor belts on both sides of the heat insulation cover 6, and the specification data of the first pipe 8 and the second pipe 9 are input on the human-computer interaction interface 21, and the specification data includes the material name of the pipe and its wall thickness.

[0066] Specifically, in step S3, pressure is continuously applied to the non-connected ends of the first pipe 8 and the second pipe 9 by hydraulic equipment or manually, so that the end surfaces of the first pipe 8 and the second pipe 9 maintain close contact during the entire docking process.

[0067] Specifically, in step S4, after receiving the measurement signal from the PLC controller 22, the piston rod of the first cylinder 52 extends, and drives the probe of the temperature sensor 51 to extend and contact the first pipe 8 and the second pipe 9 to measure the temperature of the pipes, and the measured temperature data is fed back to the PLC controller 22 in real time.

[0068] Specifically, in step S5, after receiving the heating signal from the PLC controller 22, the piston rod of the second cylinder 721 extends and drives the heating block group 71 to tighten and closely contact with the end surfaces of the first pipe 8 and the second pipe 9;

[0069] The PLC controller 22 automatically matches the corresponding preheating, heating, and hot-melting temperature and time data according to the input pipe specification data, and transmits the corresponding heating signal to the AC contactor 32;

[0070] After receiving the heating signal from the PLC controller 22, the AC contactor 32 is energized to heat the heating block group 71, so that the end surfaces of the first pipe 8 and the second pipe 9 in close contact with it enter the preheating, heating, and hot-melting stages in sequence; when heated to the set temperature, the first pipe 8 and the second pipe 9 end the hot-melting stage, and the PLC controller 22 controls the AC contactor 32 to disconnect, and the heating block group 71 is powered off and stops heating. During the entire process of energizing and heating the heating block group 71, the temperature sensor 51 remains in contact with the pipe. When the temperature sensor 51 senses that the pipe temperature has exceeded the maximum temperature that the pipe can withstand, the PLC controller 22 controls the AC contactor 32 to disconnect after receiving the relevant signal, and stops heating the heating block group 71; until the pipe cools to the corresponding temperature, the temperature sensor 51 transmits its temperature data to the PLC controller 22, and the PLC controller 22 controls the AC contactor 32 to energize and continue heating the heating block group 71.

[0071] Specifically, in step S6, when the end surfaces of the first pipe 8 and the second pipe 9 have entered the molten state, the PLC controller 22 controls the AC contactor 32 to disconnect, stops heating the heating block group 71, and controls the piston rod of the second cylinder 721 to retract, so that the heating block group 71 is no longer in contact with the pipe; in addition, the PLC controller 22 also controls the piston rod of the first cylinder 52 to retract, and drives the probe of the temperature sensor 51 to retract, and stops measuring the surface temperature of the pipe. At the same time, the LED light flashes and the buzzer sounds to remind the operator that the pipes have been docked.

[0072] Specifically, in step S7, the conveyor belt will convey the first pipe 8 and the second pipe 9 that have been butt-jointed to a place away from the heating device 7 so as to enter the next stage of processing.

[0073] Example 4

[0074] This embodiment is similar to Embodiment 3, except that, in step S2, when the specification data of the pipe to be connected cannot match the data stored in the intelligent control device 2, the preheating, heating, and hot-melting temperatures and times of the pipe to be connected can be manually input into the temperature display and control device 3, and the AC contactor 32 is energized and heated after receiving the heating signal from the temperature display and control device 3, and the heating block group 71 is powered on and heated, and the port surface of the pipe is heated until the port surface becomes molten and the heating is stopped.

[0075] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A method for butt-jointing a pipe intelligent hot-melt butt-jointing device, characterized in that: The pipe intelligent hot-melt butt-jointing device comprises a heat insulation cover (6) and a heating device (7), wherein the heat insulation cover (6) is sleeved with the heating device (7), and is characterized in that the butt-jointing device further comprises an intelligent control device (2) and a plurality of retractable temperature sensing devices (5), wherein the heating device (7) and the temperature sensing device (5) are both communicatively connected to the intelligent control device (2); the intelligent control device (2) comprises a human-machine interaction interface (21) and a PLC controller (22) communicatively connected to the human-machine interaction interface (21); the heating device (7) comprises a heating block group (71) and a clamping mechanism (72) connected to the heating block group (71), and the clamping mechanism (72) is communicatively connected to the intelligent control device (2); both sides of the heat insulation cover (6) are provided with a conveying device (1); the intelligent control device (2) has the function of storing and querying historical data, and the butt-jointing method comprises the following steps: S1. trimming the connection port surfaces of the first pipe (8) and the second pipe (9) to be connected; S2. placing the first pipe (8) and the second pipe (9) on the conveying device (1), and inputting the specification data of the pipes to be connected on the intelligent control device (2); S3. Continue to apply pressure to the first tube (8) and the second tube (9) so that the ends of the two are butted against each other; S4. After receiving the measurement signal from the intelligent control device (2), the temperature sensing device (5) extends out, contacts the first pipe (8) and the second pipe (9) and measures the temperature, and feeds back the measured temperature data to the intelligent control device (2); S5. After receiving the heating signal from the intelligent control device (2), the clamping mechanism (72) controls the heating block group (71) to clamp the first pipe (8) and the second pipe (9); the intelligent control device (2) automatically matches the corresponding preheating, heating and hot-melting data according to the specification data of the pipe, and controls the heating device (7) to heat the port surface; S6. When the port surface is heated to a molten state, the intelligent control device (2) controls the clamping mechanism (72) to relax and stop heating, and controls the temperature sensing device (5) to retract and stop measuring; S7. The conveying device (1) transports the first pipe (8) and the second pipe (9) that have been docked to a place away from the heating device (7).

2. The method for butt-jointing of pipes by the intelligent hot-melt butt-jointing device according to claim 1 is characterized in that: The PLC controller (22) has the function of storing and querying historical data. In step S1, the preheating, heating, and hot-melting temperatures and times corresponding to pipes of different materials and different wall thicknesses are input through the human-computer interaction interface (21) and stored in the PLC controller (22); In step S5, the PLC controller (22) obtains the corresponding preheating, heating and hot-melting temperatures and times by querying historical data and matching them with the specification data of the pipes to be connected input in step S2.

3. The method for butt-jointing of pipes by the intelligent hot-melt butt-jointing device according to claim 1, characterized in that: In step S2, when the specification data of the pipe to be connected cannot match the data stored in the intelligent control device (2), the preheating, heating and hot-melting temperatures and times of the pipe to be connected can be manually input into the temperature display and control device (3). After receiving the heating signal from the temperature display and control device (3), the heating device (7) starts to heat the end surface of the pipe until the end surface becomes molten.

4. The method for butt-jointing of pipes by the intelligent hot-melt butt-jointing device according to claim 1, characterized in that: The temperature sensing device (5) comprises a temperature sensor (51) and a first cylinder (52); a probe of the temperature sensor (51) is connected to a piston rod of the first cylinder (52); and the first cylinder (52) is electrically connected to a heat insulation cover (6) and a PLC controller (22).

5. The method for butt-jointing of pipes according to claim 4, characterized in that: An isolation transmitter (31) is communicatively connected between the PLC controller (22) and the temperature sensor (51), and an AC contactor (32) is communicatively connected between the PLC controller (22) and the heating block group (71).

6. The method for butt-jointing of pipes by the intelligent hot-melt butt-jointing device according to claim 5 is characterized in that: A temperature display and control device (3) is communicatively connected between the isolation transmitter (31) and the PLC controller (22), and the AC contactor (32) is communicatively connected to the temperature display and control device (3).

7. The method for butt-jointing of pipes according to claim 6, characterized in that: The intelligent control device (2) is also communicatively connected to a warning device (4).

Images