An electric fusion pipe processing device

Abstract

The present application provides an electrofusion pipe processing device, including a wire feeding mechanism, a wire inserting mechanism, a wire cutting mechanism, a turning mechanism, and a chip removal mechanism. The wire feeding mechanism is used to feed the resistance wire, the wire inserting mechanism is used to insert the resistance wire into the electrofusion pipe, the wire cutting mechanism is used to cut the resistance wire, the turning mechanism is used to rough-turn the inner wall of the electrofusion pipe, and the chip removal mechanism is used to discharge the debris generated by turning in the electrofusion pipe. The present application integrates wire feeding, wire inserting, wire cutting, turning, and chip removal into one. The turning mechanism is used to rough-turn the inner wall of the electrofusion pipe to achieve the required size for wire inserting. At the same time, the chip removal mechanism can discharge the chips generated during the turning process from the inside of the electrofusion pipe, so that the chips do not entangle the tool and no manual intervention is required. The wire is fed through the wire feeding mechanism, then inserted into the electrofusion pipe by the wire inserting mechanism, and the resistance wire is cut by the wire cutting mechanism. This not only improves production quality and production efficiency, but also greatly reduces the safety hazards of manual operation.

Description

Technical Field

[0001] The present application belongs to the technical field of electric fusion pipe fittings, and more specifically, relates to an electric fusion pipe fitting processing device. Background Art

[0002] Electric fusion pipe fittings are widely used in fields such as gas transmission, water supply, sewage disposal, agricultural irrigation, oil fields, mining, chemical industry, and postal and telecommunications. Especially in pressure piping systems in these areas, they require high environmental adaptability, pressure resistance, and safety performance. Generally, electric fusion pipe fittings are made by connecting two terminals of the fitting with an electric fusion welding machine. A resistance wire embedded in the inner wall of the fitting is heated by electricity. The heating energy melts the fitting and the pipe at the point where the resistance wire meets the fitting, causing the molten material in the molten zone to intertwine and intertwine. After natural cooling, the fitting and the pipe are welded together to form a reliable connection. Therefore, the quality of the resistance wire embedding arrangement and the reliable connection between the resistance wire and the terminal are related to the stability and reliability of the electric fusion welding, and are crucial to ensuring the safety of the welding. In the production process of electric fusion pipe fittings, embedding resistance wire in the inner wall of the pipe fitting and connecting the resistance wire to the terminal are two very important links. How to ensure the reliability and safety of the resistance wire embedded in the inner wall of the electric fusion pipe fitting during the production process, and how to connect the resistance wire to the terminal well while improving production efficiency are issues that people have been thinking about.

[0003] The existing solution for embedding resistance wire in the inner wall of electric fusion pipe fittings is mainly to use ordinary CNC lathes, equipped with special tool rods and tools and manual assistance to complete the process; first, a special tool rod is set, and a hole for passing the resistance wire is set inside the tool rod. A turning tool is set on one side (back) of the front end of the tool rod, and a wire inserting cutter for embedding the resistance wire is set on the other side (front). The turning tool is provided with a turning blade, and its function is to perform turning processing on the inner wall of the electric fusion pipe fitting, and a wire pressing boss is set at the lower part of the wire inserting cutter, and a slotting blade is set at the upper end. The resistance wire is passed through the wire hole and leaned against the back of the slotting blade. The specific operation is to manually clamp the electric fusion pipe fitting on an ordinary horizontal CNC lathe, press the tool bar onto the tool holder of the lathe, start the lathe, and use the turning tool set on the front end (back) of the tool bar to turn the inner hole of the electric fusion pipe fitting to the size required by the wire embedding process. After completion, the tool withdraws from the inner hole of the electric fusion pipe fitting to the retraction position. The chips and chips generated during the turning process are manually hooked out with a hook, and the chips and chips wrapped around the tool are withdrawn. When the tool reaches the retraction position, the work stops and the tool is manually processed using hooks, scissors, etc.; the tool is further inserted into the electrofusion pipe fitting, and the wire embedding knife of the tool is close to the inner wall. The resistance wire arranged between the wire pressing boss and the slotting blade is aligned with the center of the first terminal through-hole. The resistance wire on the tool is manually hooked out through the through-hole of the terminal using a hook, and then the resistance wire is manually wound onto the terminal protective cover. The lathe is then started to rotate slowly, and the tool is moved so that the blade of the wire embedding knife opens a small groove on the inner wall of the electrofusion pipe fitting, and at the same time the wire pressing boss presses the resistance wire into the Into the small groove in front and buried in the bottom of the groove, the resistance wire is continuously embedded in this way, so that the resistance wire is spirally embedded in the inner wall of the electric fusion pipe fitting until it stops at the center of the through-hole of the second terminal. As with the previous method, the resistance wire on the tool is manually hooked out of the terminal through-hole by using a hook, and then the resistance wire is cut with scissors. The tool is reset to the retraction position, and the inner wall of the pipe fitting is finely machined to the standard size. The pipe fitting is manually removed from the lathe, and then the terminal is manually connected and installed in the terminal through-hole of the pipe fitting to prepare for the next cycle of work.

[0004] In summary, the important links in the current production of electric fusion pipe fittings, such as embedding resistance wire, winding terminal, installing terminal into hole, chip removal, and wire breaking, are all manual operations, with unstable quality, low efficiency, and great safety hazards. During the process of turning the inner wall, the chips generated cannot be removed in time and are easily wrapped around the tool rod, which makes it easy for the chips to scratch the inner wall. Manual chip removal is also very dangerous, and the safety hazard is huge. Summary of the Invention

[0005] To achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide an electric fusion pipe processing device, including a wire feeding mechanism, a wire inserting mechanism, a wire cutting mechanism, a turning mechanism and a chip removal mechanism, the wire feeding mechanism is used to feed the resistance wire, the wire inserting mechanism is used to embed the resistance wire in the electric fusion pipe, the wire cutting mechanism is used to cut the resistance wire, the turning mechanism is used to rough-turn the inner wall of the electric fusion pipe, and the chip removal mechanism is used to discharge the debris generated by turning in the electric fusion pipe.

[0006] Optionally, a box body is further included, and the wire feeding mechanism is arranged in the box body, including a motor, a wire guide assembly, a cylinder and a wire pressing assembly. The motor is connected to the wire guide assembly to drive the wire guide assembly to rotate, and the cylinder is connected to the wire pressing assembly to make the wire pressing assembly approach or move away from the wire guide assembly.

[0007] Optionally, the guide wire assembly includes a first guide wire wheel, a second guide wire wheel and a transmission gear, the first guide wire wheel is coaxially fixedly connected to the first gear, the second guide wire wheel is coaxially fixedly connected to the second gear, the transmission gear is respectively engaged with the first gear and the second gear, and the first guide wire wheel or the second guide wire wheel is connected to the motor transmission.

[0008] Optionally, the wire pressing assembly includes a double-rod cylinder, which is connected to a wire pressing wheel fixing seat, and the wire pressing wheel fixing seat is rotatably connected to a first wire pressing wheel and a second wire pressing wheel, the first wire pressing wheel is arranged opposite to the first wire guide wheel, and the second wire pressing wheel is arranged opposite to the second wire guide wheel.

[0009] Optionally, the guidewire assembly further comprises a first guidewire needle, a second guidewire needle and a third guidewire needle that are coaxially arranged, and a through hole matching the size of the resistance wire is provided in the middle of the first guidewire needle, the second guidewire needle and the third guidewire needle.

[0010] Optionally, the wire embedding mechanism includes a knife rod and a knife disc, a wire embedding knife is provided on the knife disc, the knife rod is fixedly connected to the box body, and through holes for the resistance wire to pass through are provided inside the knife rod and the knife disc, and the knife disc is provided at one end of the knife rod away from the box body, and the wire embedding knife is used to embed the resistance wire passing through the knife rod into the inner wall of the electric fusion pipe fitting.

[0011] Optionally, the wire breaking mechanism includes a crochet cylinder, a punch rod and a resistance wire cutter, the crochet cylinder is fixed to the top of the box, the punch rod is slidably connected to the cutter rod, one end of the punch rod is connected to the telescopic end of the crochet cylinder, and the other end of the punch rod is connected to the resistance wire cutter, the resistance wire cutter is slidably arranged in the cutter disc, and a spring is provided on the outside of the resistance wire cutter, and the end of the resistance wire cutter away from the punch rod is provided with a through hole for the resistance wire to pass through.

[0012] Optionally, a resistance wire guide groove block is provided inside the cutter disc, an L-shaped guide groove is provided in the resistance wire guide groove block, a resistance wire guide wheel is provided inside the cutter disc, the resistance wire guide wheel is located at the corner of the guide groove, and the through hole can be aligned with the guide groove; and / or, a punch limit block is provided in the box body, two limit protrusions are provided on the punch rod, and the punch limit block is located between the two limit protrusions.

[0013] Optionally, the turning mechanism includes a turning tool fixing groove provided on the cutter disc, and a turning tool is provided in the turning tool fixing groove.

[0014] Optionally, the chip removal mechanism includes an air intake nozzle and a chip removal nozzle arranged on the tool rod, a chip removal air path is provided inside the tool rod, the air intake nozzle and the chip removal nozzle are both connected to the chip removal air path, and the chip removal nozzle is close to the tool disc.

[0015] The beneficial effect of the electric fusion pipe processing device provided by the present application is that: compared with the existing technology, the present application integrates wire feeding, wire inserting, wire cutting, turning and chip removal by setting a wire feeding mechanism, a wire inserting mechanism, a wire cutting mechanism, a turning mechanism and a chip removal mechanism. First, the inner wall of the electric fusion pipe is roughly turned and formed by the turning mechanism to achieve the required size for wire inserting. At the same time, the chips generated in the turning process can be discharged from the inside of the electric fusion pipe by the chip removal mechanism, so that the chips do not entangle the tool and no manual intervention is required; the resistance wire is fed by the wire feeding mechanism, and then embedded in the electric fusion pipe by the wire inserting mechanism, and the resistance wire is cut off by the wire cutting mechanism, which not only improves the production quality and production efficiency, but also greatly reduces the safety hazards of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 A schematic structural diagram of an electric fusion pipe processing device provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the internal structure of the electrofusion pipe processing device provided in an embodiment of the present application;

[0019] Figure 3 A schematic cross-sectional view of an electrofusion pipe processing device according to an embodiment of the present application;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of part A;

[0021] Figure 5 A schematic diagram of the structure of the chip removal mechanism provided in an embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of the structure of the cutter disc in the electric fusion pipe processing device provided in an embodiment of the present application.

[0023] Among them, the reference numerals in the figures are:

[0024] 1. Box; 2. Wire feeding mechanism; 21. Motor; 22. First guide roller; 23. Second guide roller; 24. First gear; 25. Second gear; 26. Transmission gear; 27. Double-rod cylinder; 28. Pressing roller fixing seat; 29. First press roller; 210. Second press roller; 211. First guide needle; 212. Second guide needle; 213. Third guide needle; 214. Guide needle fixing block; 3. Wire insertion mechanism; 31. Cutter bar; 32. Cutter disc ;33. Wire inserting knife;34. Cutter bar fixing seat;4. Wire breaking mechanism;41. Hook needle cylinder;42. Punch rod;43. Resistance wire cutter;44. Spring;45. Punch limit block;46. Limiting protrusion;47. Resistance wire guide groove block;48. Resistance wire guide wheel;49. Guide groove;5. Turning mechanism;51. Turning tool fixing groove;52. Threaded hole;6. Chip removal mechanism;61. Air inlet nozzle;62. Chip removal nozzle;63. Chip removal air path;7. Resistance wire. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0026] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0027] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0029] Please also refer to Figures 1-6 Now, the electric fusion pipe processing device provided in the embodiment of the present application is described.

[0030] A device for processing electric fusion pipe fittings includes a wire feeding mechanism 2, a wire inserting mechanism 3, a wire cutting mechanism 4, a turning mechanism 5 and a chip removal mechanism 6. The wire feeding mechanism 2 is used to feed a resistance wire 7, the wire inserting mechanism 3 is used to insert the resistance wire 7 into the electric fusion pipe fitting, the wire cutting mechanism 4 is used to cut the resistance wire 7, the turning mechanism 5 is used to rough-turn the inner wall of the electric fusion pipe fitting, and the chip removal mechanism 6 is used to discharge the debris generated by turning in the electric fusion pipe fitting.

[0031] The present application integrates wire feeding, wire inserting, wire cutting, turning and chip removal by setting a wire feeding mechanism 2, a wire inserting mechanism 3, a wire cutting mechanism 4, a turning mechanism 5 and a chip removal mechanism 6. First, the inner wall of the electric fusion pipe fitting is roughly turned by the turning mechanism 5 to achieve the required size for wire inserting. At the same time, the chips generated in the turning process can be discharged from the inside of the electric fusion pipe fitting by the chip removal mechanism 6, so that the chips are not entangled with the tool and no manual intervention is required; the resistance wire 7 is fed by the wire feeding mechanism 2, and then embedded in the electric fusion pipe fitting through the wire inserting mechanism 3, and the resistance wire 7 is cut off by the wire cutting mechanism 4, which not only improves the production quality and production efficiency, but also greatly reduces the safety hazards of manual operation.

[0032] In some embodiments of this application, see Figure 1 and Figure 2 , also includes a box body 1, a wire feeding mechanism 2 is arranged in the box body 1, and includes a motor 21, a wire guide assembly, a cylinder and a wire pressing assembly. The motor 21 is connected to the wire guide assembly to drive the wire guide assembly to rotate, and the cylinder is connected to the wire pressing assembly to make the wire pressing assembly close to or away from the wire guide assembly.

[0033] For details, see Figure 2The wire guide assembly includes a first wire guide wheel 22, a second wire guide wheel 23 and a transmission gear 26. The first wire guide wheel 22, the second wire guide wheel 23 and the transmission gear 26 are all rotatably installed on the side wall of the box body 1. The first wire guide wheel 22 is coaxially fixedly connected to the first gear 24, and the second wire guide wheel 23 is coaxially fixedly connected to the second gear 25. The transmission gear 26 is respectively engaged with the first gear 24 and the second gear 25. The first wire guide wheel 22 or the second wire guide wheel 23 is connected to the motor 21 for transmission.

[0034] In some embodiments of the present application, the motor 21 is connected to the first guide wheel 22, the first guide wheel 22 rotates, and is transmitted through the first gear 24, the transmission gear 26 and the second gear 25, driving the second guide wheel 23 to rotate, and the first guide wheel 22 and the second guide wheel 23 rotate in the same direction, and the first guide wheel 22 and the second guide wheel 23 provide forward power for the resistance wire 7.

[0035] The motor 21 drives the gears and the guide wheel to rotate synchronously, thereby driving the resistance wire 7 to move at the required speed. The motor 21 can be set through the control system to output a smooth speed as required, or the speed can be continuously changed during the movement as needed. The resistance wire 7 can move forward and backward freely, and the wire feeding and retracting are stable and reliable.

[0036] In other embodiments of the present application, the motor 21 may also be connected to the second guide wheel 23, which is not limited in the present application.

[0037] In some embodiments of this application, see Figure 2 The wire pressing assembly includes a double-rod cylinder 27, which is connected to a wire pressing wheel fixing seat 28. The wire pressing wheel fixing seat 28 is rotatably connected to a first wire pressing wheel 29 and a second wire pressing wheel 210. The first wire pressing wheel 29 is arranged opposite to the first wire guide wheel 22, and the second wire pressing wheel 210 is arranged opposite to the second wire guide wheel 23.

[0038] The double-rod cylinder 27 can drive the wire pressing wheel fixing seat 28 to move, thereby driving the first wire pressing wheel 29 and the second wire pressing wheel 210 to move closer to or away from the first wire guide wheel 22 and the second wire guide wheel 23. When the first wire pressing wheel 29 contacts the first wire guide wheel 22 and the second wire pressing wheel 210 contacts the second wire guide wheel 23, the resistance wire 7 is clamped between the wire pressing wheel and the wire guide wheel, and the wire guide wheel can drive the resistance wire 7 to move to realize the wire feeding function.

[0039] In some embodiments of the present application, participation Figure 2 and Figure 3 The guidewire assembly also includes a first guidewire needle 211, a second guidewire needle 212 and a third guidewire needle 213 which are coaxially arranged. The middle parts of the first guidewire needle 211, the second guidewire needle 212 and the third guidewire needle 213 are provided with through holes that match the size of the resistance wire 7.

[0040] Specifically, the first guide needle 211 is fixedly connected to the top plate of the box body 1, a guide needle fixing block is fixedly provided in the box body 1, the second guide needle 212 is fixed to the guide needle fixing block 214, and the third guide needle 213 is fixedly connected to the bottom plate of the box body 1, and the second guide needle 212 is located between the first guide wheel 22 and the second guide wheel 23. A through hole slightly larger than the diameter of the resistance wire 7 is provided in the middle of the first guide needle 211, the second guide needle 212, and the third guide needle 213, which is located in the same straight line and is provided for the resistance wire 7 to pass through, making it more convenient and quick to thread the resistance wire 7.

[0041] In some embodiments of this application, see Figure 1 、 2 6. The wire-inserting mechanism 3 includes a cutter bar 31 and a cutter disc 32. The cutter disc 32 is provided with a wire-inserting knife 33. The cutter bar 31 is fixedly connected to the housing 1. Through holes for the resistance wire 7 to pass through are provided inside the cutter bar 31 and the cutter disc 32. The cutter disc 32 is located at the end of the cutter bar 31 away from the housing 1. The wire-inserting knife 33 is used to embed the resistance wire 7 passing through the cutter bar 31 into the inner wall of the electrofusion pipe fitting. The cutter bar 31 is fixedly connected to a cutter bar 31 holder, which is used to secure the cutter bar 31.

[0042] The resistance wire 7 passes through the through holes on the cutter rod 31 and the cutter disc 32 through the wire feeding mechanism 2, and comes out from the cutter disc 32. Finally, the resistance wire 7 is embedded into the inner wall of the electric fusion pipe fitting by the wire embedding knife 33, completing the process of wire embedding of the electric fusion pipe fitting.

[0043] In some embodiments of this application, see Figure 3 and Figure 4 The wire breaking mechanism 4 includes a hook cylinder 41, a punch rod 42 and a resistance wire cutter 43. The hook cylinder 41 is fixed to the top of the box body 1, and the punch rod 42 is slidably connected to the knife rod 31. One end of the punch rod 42 is connected to the telescopic end of the hook cylinder 41, and the other end of the punch rod 42 is connected to the resistance wire cutter 43. The resistance wire cutter 43 is slidably arranged in the cutter disc 32, and a spring 44 is provided on the outside of the resistance wire cutter 43. The end of the resistance wire cutter 43 away from the punch rod 42 is provided with a through hole for the resistance wire 7 to pass through.

[0044] The hook cylinder 41 drives the punch rod 42 to move up and down. When the punch rod 42 hits the resistance wire cutter 43, the resistance wire cutter 43 moves downward, and the cylindrical coil spring 44 arranged under the resistance wire cutter 43 is compressed along with the resistance wire cutter 43. The resistance wire cutter 43 moves to the set position and cuts off the resistance wire 7. When the punch rod 42 moves up and resets, the resistance wire cutter 43 also returns to its initial state under the action of the cylindrical coil spring 44, preparing for the next work. In this way, the wire cutting speed is fast, the efficiency is high, the wire breaking is reliable, no manual intervention is required, and safety hazards are reduced.

[0045] See Figure 4A resistance wire guide groove block 47 is provided inside the cutter disc 32, and an L-shaped guide groove 49 is provided in the resistance wire guide groove block 47. A resistance wire guide wheel 48 is provided inside the cutter disc 32, and the resistance wire guide wheel 48 is located at the corner of the guide groove 49, and the through hole can be aligned with the guide groove 49.

[0046] The guide groove 49 and the resistance wire guide wheel 48 provided on the resistance wire guide groove block 47 can guide the resistance wire 7 so that the resistance wire 7 changes from being parallel to the knife rod 31 to being perpendicular to the knife rod 31. When the resistance wire cutter 43 is in the initial state, the through hole on the resistance wire cutter 43 is in a straight line with a section of the guide groove 49 perpendicular to the knife rod 31. At this time, the resistance wire 7 can pass through the guide groove 49 and through the through hole on the resistance wire cutter 43. A sharp blade is provided at the through hole. The resistance wire cutter 43 moves back and forth driven by the punch rod 42 to cut the resistance wire 7.

[0047] In some embodiments of this application, see Figure 3 A punch stopper 45 is provided in the box body 1, and two stopper protrusions 46 are provided on the punch rod 42. The punch stopper 45 is located between the two stopper protrusions 46. When the hook cylinder 41 is working, it drives the punch rod 42 to move forward or backward within the upper and lower limit ranges of the punch stopper 45, so as to achieve the purpose of striking the resistance wire cutter 43 in front of the punch rod 42 within the limit range.

[0048] In some embodiments of this application, see Figure 6 The turning mechanism 5 includes a turning tool fixing groove 51 provided on the cutter head 32 , and a turning tool (not shown) is provided in the turning tool fixing groove 51 .

[0049] Specifically, a threaded hole 52 is provided in the turning tool fixing groove 51, and the turning tool can be fixed in the turning tool fixing groove through the threaded hole 52. By providing the turning tool, the inner wall of the electric fusion pipe fitting can be turned to meet the wire insertion requirement.

[0050] In some embodiments of this application, see Figure 5 The chip removal mechanism 6 includes an air intake nozzle 61 and a chip removal nozzle 62 arranged on the tool rod 31. A chip removal air path 63 is arranged inside the tool rod 31. The air intake nozzle 61 and the chip removal nozzle 62 are both connected to the chip removal air path 63. The chip removal nozzle 62 is close to the cutter disc 32.

[0051] By arranging an air intake nozzle 61, a chip removal air path 63, and a chip removal air nozzle 62 inside the tool rod 31, the air intake nozzle 61 is connected to the air source to generate a high-speed airflow during the production process, and the turning chips generated in real time are discharged from the electric fusion pipe fittings through the chip removal air path 63 and the chip removal air nozzle 62. There is no need for manual labor to go to the site and use tools to hook them out, which effectively reduces the safety hazards caused by the staff's on-site operations and has high production efficiency.

[0052] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An electrofusion pipe processing device, characterized in that: It includes a wire feeding mechanism, a wire inserting mechanism, a wire cutting mechanism, a turning mechanism and a chip removal mechanism. The wire feeding mechanism is used to feed the resistance wire, the wire inserting mechanism is used to insert the resistance wire into the electric fusion pipe fitting, the wire cutting mechanism is used to cut the resistance wire, the turning mechanism is used to rough-turn the inner wall of the electric fusion pipe fitting, and the chip removal mechanism is used to discharge the chips generated by turning in the electric fusion pipe fitting; The invention also includes a box body, wherein the wire feeding mechanism is arranged in the box body, and the wire feeding mechanism includes a motor, a wire guide assembly, a cylinder and a wire pressing assembly. The motor is connected to the wire guide assembly and is used to drive the wire guide assembly to rotate. The cylinder is connected to the wire pressing assembly and is used to make the wire pressing assembly move closer to or away from the wire guide assembly. The guide wire assembly includes a first guide wire wheel, a second guide wire wheel and a transmission gear, the first guide wire wheel is coaxially fixedly connected to the first gear, the second guide wire wheel is coaxially fixedly connected to the second gear, the transmission gear is respectively engaged with the first gear and the second gear, and the first guide wire wheel or the second guide wire wheel is transmission-connected to the motor; The wire pressing assembly includes a double-rod cylinder, the double-rod cylinder is connected to a wire pressing wheel fixing seat, the wire pressing wheel fixing seat is rotatably connected to a first wire pressing wheel and a second wire pressing wheel, the first wire pressing wheel is arranged opposite to the first wire guide wheel, and the second wire pressing wheel is arranged opposite to the second wire guide wheel; The guide wire assembly also includes a first guide wire needle, a second guide wire needle and a third guide wire needle which are coaxially arranged. The middle parts of the first guide wire needle, the second guide wire needle and the third guide wire needle are provided with through holes that match the size of the resistance wire.

2. The electrofusion pipe processing device according to claim 1, characterized in that: The wire embedding mechanism includes a knife rod and a knife disc, a wire embedding knife is provided on the knife disc, the knife rod is fixedly connected to the box body, the knife rod and the knife disc are provided with through holes for the resistance wire to pass through, the knife disc is arranged at one end of the knife rod away from the box body, and the wire embedding knife is used to embed the resistance wire passing through the knife rod into the inner wall of the electric fusion pipe fitting.

3. The electrofusion pipe processing device according to claim 2, characterized in that: The wire breaking mechanism includes a hook cylinder, a punch rod and a resistance wire cutter. The hook cylinder is fixed to the top of the box body, the punch rod is slidably connected to the cutter rod, one end of the punch rod is connected to the telescopic end of the hook cylinder, and the other end of the punch rod is connected to the resistance wire cutter. The resistance wire cutter is slidably arranged in the cutter disc, and a spring is provided on the outside of the resistance wire cutter. The end of the resistance wire cutter away from the punch rod is provided with a through hole for the resistance wire to pass through.

4. The electrofusion pipe processing device according to claim 3, characterized in that: A resistance wire guide groove block is provided inside the cutter disc, an L-shaped guide groove is provided in the resistance wire guide groove block, a resistance wire guide wheel is provided inside the cutter disc, the resistance wire guide wheel is located at the corner of the guide groove, and the through hole can be aligned with the guide groove; and / or, a punch limit block is provided in the box body, two limit protrusions are provided on the punch rod, and the punch limit block is located between the two limit protrusions.

5. The electrofusion pipe processing device according to claim 2, characterized in that: The turning mechanism comprises a turning tool fixing groove arranged on the cutter disc, and a turning tool is arranged in the turning tool fixing groove.

6. The electrofusion pipe processing device according to claim 2, characterized in that: The chip removal mechanism includes an air intake nozzle and a chip removal nozzle arranged on the tool rod. A chip removal air path is provided inside the tool rod. The air intake nozzle and the chip removal nozzle are both connected to the chip removal air path. The chip removal nozzle is close to the tool disc.

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