A device for end face slotting of non-metal composite pipe

Abstract

The application discloses a kind of end face slotting devices for non-metal composite pipe, it is related to non-metal composite pipe end face processing equipment technical field;And the present application includes main machine shell and feed shell, the feed shell is fixedly installed in main machine shell bottom by bolt, cutter driving assembly is equipped in main machine shell, cutter lifting adjusting assembly that is used in cooperation with cutter driving assembly is equipped in feed shell, elastic embrace positioning assembly is equipped in the bottom of feed shell, operating control panel and power supply module that are symmetrically distributed are installed on main machine shell, operating handle is fixedly installed on the both sides of main machine shell by support, the cutter lifting adjusting assembly includes cutter sleeve, de-energized electromagnet, servo motor and corn milling cutter;The present application can accurately control the axial feed and slotting depth of corn milling cutter by setting cutter lifting adjusting assembly, realizes power-off self-locking in cooperation with de-energized electromagnet, ensures that processing depth is constant, avoids that resin layer is damaged due to cutting too deep, guarantees subsequent hot melt welding quality.

Description

Technical Field

[0001] This invention relates to the technical field of non-metallic composite pipe end face processing equipment, specifically to an end face grooving device for non-metallic composite pipes. Background Technology

[0002] When non-metallic composite pipes are connected by electrofusion, end face sealing is required. Usually, hot melt welding is used to achieve the seal. However, the reinforcing layer in the composite pipe cannot be melted and welded by heat like the resin substrate. Therefore, the end face reinforcing layer needs to be removed in advance, leaving only the inner layer and the protective layer, which are two thermoplastic resin structures, for subsequent hot melt welding.

[0003] Currently, conventional grooving processes mostly use lathes or milling machines. However, the thickness of the inner and protective layers of the pipe is limited. When removing the reinforcing layer using traditional turning or milling methods, the resin layer is easily cut too thin or even damaged, severely affecting subsequent welding quality and connection sealing. Secondly, existing grooving equipment typically uses clamping plates that match the inner and outer curvature of the pipe. During use, the pipe end face is pressed against the clamping surface, and the pipe is slowly rotated or the moving device is used to remove the reinforcing layer. However, such clamping plates can only adapt to a single pipe specification, lacking versatility and unable to accommodate the non-roundness differences present in non-metallic composite pipes. It is difficult to ensure that the tool and pipe remain coaxial and centered, easily leading to problems such as cutting eccentricity and uneven thickness, still failing to meet the requirements of high-precision processing. To address these issues, this application proposes an end-face grooving device for non-metallic composite pipes to solve these problems. Summary of the Invention

[0004] To address the issues of limited thickness of the inner and protective layers of pipes, traditional grooving methods often result in excessively thin resin layers, affecting the quality of subsequent hot-melt welding, and the inconsistent specifications of non-metallic composite pipes, as well as the diverse specifications, non-roundness, and non-circular end faces of the reinforcing layer, which make them difficult to process using conventional lathes or milling machines; the purpose of this invention is to provide an end-face grooving device for non-metallic composite pipes.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: an end face grooving device for non-metallic composite pipes, comprising a main body housing and a feed housing, wherein the feed housing is fixedly installed at the bottom of the main body housing by bolts, a tool driving assembly is provided inside the main body housing, a tool lifting adjustment assembly that works in conjunction with the tool driving assembly is provided inside the feed housing, an elastic clamping positioning assembly is provided at the bottom of the feed housing, a symmetrically distributed operation control panel and power supply module are installed on the main body housing, and operation handles are fixedly installed on both sides of the main body housing by supports;

[0006] The tool lifting adjustment assembly includes a tool holder, a de-energized electromagnet, a servo motor, and a corn milling cutter. The tool holder is vertically slidably fitted onto the outer wall of the drive shaft via a spline. The de-energized electromagnet is fixedly installed on the inner wall of the feed housing. The servo motor is fixedly installed on the top of the feed housing. The corn milling cutter is fixedly installed on the bottom end of the tool holder by bolts. A lower half and an upper half of a guide ring are fitted onto the outer wall of the tool holder. A feed lifting seat is vertically slidably installed inside the feed housing near the de-energized electromagnet, and the lower half and upper half of the guide ring are rotatably connected to the feed lifting seat via bearings. A feed screw is rotatably installed inside the feed housing via bearings, and the drive end of the servo motor is connected to the feed screw via a coupling. A feed nut seat is threaded onto the outer wall of the feed screw, and the inner side of the feed nut seat is fixed to the outer wall of the feed lifting seat by bolts. The feed nut seat has an armature fixedly mounted on its outer wall, which is in contact with the outer wall of the de-energized electromagnet. A guide shaft is fixedly mounted inside the feed housing near the feed screw. A guide sleeve is vertically slidably mounted on the outer wall of the guide shaft via a spline, and the guide sleeve is fixedly mounted on the feed lifting seat. Two symmetrically distributed buffer plates are vertically slidably mounted on the outer wall of the guide shaft. Two buffer springs are sleeved on the outer wall of the guide shaft, and the two ends of the buffer springs are respectively connected to the buffer plates and the inner wall of the feed housing. The lower half of the guide ring and the upper half of the guide ring are closed to each other to form a complete mounting ring. Four connecting posts arranged in a ring array are fixedly mounted at the bottom of the lower half of the guide ring. A connecting hole corresponding to the connecting post is opened on the protrusion of the outer wall of the tool sleeve, and the connecting hole is inserted into the connecting post. The upper half of the guide ring is fixedly connected to the outer wall of the tool sleeve by bolts.

[0007] Preferably, the tool drive assembly includes a drive shaft and a drive motor. The drive shaft is rotatably mounted in the middle of the feed housing via bearings. The drive motor is fixedly installed in the main housing, and the drive end of the drive motor is connected to the drive shaft via a coupling. Heat dissipation fins are fixedly installed on the outer wall of the drive shaft.

[0008] Preferably, the elastic clamping positioning assembly includes a positioning bracket and four elastic clamping arms. The positioning bracket is fixedly connected to the feed housing by bolts. The four elastic clamping arms are respectively hinged to the outer periphery of the positioning bracket. Four upper positioning rollers are installed at the bottom of the positioning bracket. Lower positioning rollers are rotatably installed at the ends of the elastic clamping arms. A lifting arm is vertically slidably installed inside the feed housing. Two linkage rods are respectively hinged to both sides of the outer wall of the lifting arm, and the other end of the linkage rod is hinged to the corresponding elastic clamping arm. An adjusting screw is rotatably installed inside the feed housing through a bearing. An adjusting nut seat is threadedly connected to the outer wall of the adjusting screw, and the adjusting nut seat is fixedly connected to the lifting arm by bolts. A horizontal shaft is rotatably installed on the inner wall of the feed housing. A worm gear is fixedly sleeved on the top of the outer wall of the adjusting screw. A worm is fixedly sleeved on the outer wall of the horizontal shaft, and the worm gear and the worm mesh with each other. An adjusting handwheel is fixedly installed on the outer wall of the horizontal shaft. Two symmetrically distributed guide slides are fixedly installed inside the feed housing. Sliding sleeves are vertically slidably installed on the outer wall of the guide slides, and the sliding sleeves are fixedly connected to the lifting arm.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] 1. This invention, by setting up a tool lifting and adjusting component, can precisely control the axial feed and grooving depth of the corn milling cutter. With the help of a de-energized electromagnet, it can achieve power-off self-locking, ensuring a constant machining depth, avoiding excessive cutting that could damage the resin layer, and ensuring the quality of subsequent hot melt welding.

[0011] 2. By setting up an elastic clamping positioning component, the opening and closing degree of the elastic clamping arm can be adjusted to adapt to non-metallic composite pipes of different diameters. At the same time, the elastic deformation of the elastic clamping arm is used to compensate for the non-roundness of the pipe wall and the irregular shape of the end face, ensuring that the device and the pipe are accurately centered and reliably fitted.

[0012] 3. By setting up a tool drive assembly, the present invention uses a motor directly connected to the drive shaft to drive the corn milling cutter to rotate at high speed, which ensures stable power transmission and high cutting efficiency. Combined with heat dissipation blades, it achieves forced active heat dissipation, which can ensure that the device can operate continuously and stably for a long time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0016] Figure 3 This is a schematic diagram of the side-section structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the neutral cohesion positioning component of the present invention;

[0018] Figure 5 This is a schematic diagram of the tool lifting and adjusting assembly in this invention;

[0019] Figure 6 This is a schematic diagram of the side profile of the tool sleeve in this invention;

[0020] Figure 7 This is a bottom view of the main unit housing structure in this invention;

[0021] Figure 8 for Figure 3Enlarged structural diagram at point A;

[0022] Figure 9 for Figure 3 Enlarged structural diagram at point B;

[0023] Figure 10 for Figure 6 Enlarged schematic diagram of the structure at point C.

[0024] In the diagram: 1. Main housing; 2. Feed housing; 3. Tool drive assembly; 301. Drive shaft; 302. Drive motor; 303. Heat sink; 4. Tool lifting adjustment assembly; 401. Tool holder; 402. De-energized electromagnet; 403. Servo motor; 404. Corn milling cutter; 405. Lower half of guide collar; 406. Upper half of guide collar; 407. Feed lifting seat; 408. Feed screw; 409. Feed nut seat; 410. Armature; 411. Guide shaft; 412. Guide sleeve; 413. Buffer 414. Plate; 415. Buffer spring; 416. Connecting column; 417. Connecting hole; 5. Elastic clamping positioning assembly; 501. Positioning bracket; 502. Elastic clamping arm; 503. Upper positioning roller; 504. Lower positioning roller; 505. Lifting arm; 506. Linkage rod; 507. Adjusting screw; 508. Adjusting nut seat; 509. Horizontal shaft; 510. Worm gear; 511. Worm; 512. Adjusting handwheel; 513. Guide slide rod; 514. Sliding sleeve; 6. Operation control panel; 7. Operation handle; 8. Power supply module. Detailed Implementation

[0025] 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 embodiments of the present invention, and not all embodiments. 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.

[0026] Example: Figure 1-10 As shown, the present invention provides a technical solution: an end face grooving device for non-metallic composite pipes, including a main housing 1 and a feed housing 2. The feed housing 2 is fixedly installed at the bottom of the main housing 1 by bolts. The main housing 1 is provided with a tool driving assembly 3. The feed housing 2 is provided with a tool lifting adjustment assembly 4 that works in conjunction with the tool driving assembly 3. The bottom of the feed housing 2 is provided with an elastic clamping positioning assembly 5. The main housing 1 is equipped with a symmetrically distributed operation control panel 6 and a power supply module 8. The main housing 1 is fixedly installed with operation handles 7 on both sides by supports.

[0027] The tool drive assembly 3 includes a drive shaft 301 and a drive motor 302. The drive shaft 301 is rotatably mounted in the middle of the feed housing 2 via bearings. The drive motor 302 is fixedly mounted in the main housing 1, and the drive end of the drive motor 302 is connected to the drive shaft 301 via a coupling.

[0028] The tool lifting adjustment assembly 4 includes a tool holder 401, a de-energized electromagnet 402, a servo motor 403, and a corn milling cutter 404. The tool holder 401 is vertically slidably sleeved on the outer wall of the drive shaft 301 via a spline. The de-energized electromagnet 402 is fixedly installed on the inner wall of the feed housing 2. The servo motor 403 is fixedly installed on the top of the feed housing 2. The corn milling cutter 404 is fixedly installed on the bottom end of the tool holder 401 by bolts. The outer wall of the tool holder 401 is fitted with a lower half 405 of a guide collar and an upper half 406 of a guide collar. A feed lifting mechanism is vertically slidably installed inside the feed housing 2 near the de-energized electromagnet 402. The feed lifting seat 407 is rotatably connected to the lower half 405 and the upper half 406 of the guide collar via bearings. The feed housing 2 is rotatably mounted with a feed screw 408 via bearings. The drive end of the servo motor 403 is connected to the feed screw 408 via a coupling. The feed nut seat 409 is threadedly connected to the outer wall of the feed screw 408. The inner side of the feed nut seat 409 is fixedly connected to the outer wall of the feed lifting seat 407 via bolts. An armature 410 is fixedly mounted on the outer wall of the feed nut seat 409, and the armature 410 is in contact with the outer wall of the de-energized electromagnet 402.

[0029] By adopting the above technical solution, the servo motor 403 drives the feed screw 408 to rotate, which in turn drives the feed nut seat 409 and the feed lifting seat 407 to slide along the guide shaft 411, thereby realizing the axial feed adjustment of the tool sleeve 401 and the corn milling cutter 404. At the same time, the tool sleeve 401 is connected to the drive shaft 301 through a spline. While moving up and down with the feed lifting seat 407, it can be driven to rotate by the drive shaft 301 to realize the cutting action. During this process, the de-energized electromagnet 402 cooperates with the armature 410 and automatically engages when the power is off, locking the position of the feed nut seat 409 to prevent the tool sleeve 401 from sliding down and ensuring the stability of the grooving depth.

[0030] The elastic clamping positioning assembly 5 includes a positioning bracket 501 and four elastic clamping arms 502. The positioning bracket 501 is fixedly connected to the feed housing 2 by bolts. The four elastic clamping arms 502 are respectively hinged to the outer periphery of the positioning bracket 501. Four upper positioning rollers 503 are installed at the bottom of the positioning bracket 501. Lower positioning rollers 504 are rotatably installed at the ends of the elastic clamping arms 502. A lifting arm 505 is vertically slidably installed inside the feed housing 2. Two linkage rods 506 are respectively hinged to both sides of the outer wall of the lifting arm 505, and the other end of the linkage rod 506 is hinged to the corresponding elastic clamping arm 502.

[0031] By adopting the above technical solution, when the lifting arm 505 slides up and down, it can drive each elastic clamping arm 502 to open and close synchronously. With the upper positioning roller 503 and the lower positioning roller 504 encircling the outer wall of the pipe, the device can achieve centering and self-adaptive fitting.

[0032] The elastic clamping arm 502 is made of POM engineering plastic, which combines structural strength and elastic toughness. It can produce a small amount of elastic deformation, which can adaptively compensate for the non-roundness error of the pipe, ensuring that the positioning roller always fits the pipe wall and improving the centering stability of the device.

[0033] A guide shaft 411 is fixedly installed inside the feed housing 2 on one side near the feed screw 408. A guide sleeve 412 is vertically slidably installed on the outer wall of the guide shaft 411 via a spline, and the guide sleeve 412 is fixedly installed on the feed lifting seat 407.

[0034] By adopting the above technical solution, the guide shaft 411 and the guide sleeve 412 cooperate to provide linear auxiliary guidance for the up and down movement of the feed lifting seat 407, ensuring feed accuracy.

[0035] Two symmetrically distributed buffer plates 413 are vertically slidably installed on the outer wall of the guide shaft 411. Two buffer springs 414 are sleeved on the outer wall of the guide shaft 411, and the two ends of the buffer springs 414 are respectively connected to the buffer plates 413 and the inner wall of the feed housing 2.

[0036] By adopting the above technical solution, the buffer plate 413 and the buffer spring 414 can limit and buffer the up and down stroke of the feed lifting seat 407, thereby improving the service life and operational safety of the device.

[0037] The lower half 405 of the guide collar and the upper half 406 of the guide collar close together to form a complete mounting ring. Four connecting posts 415 arranged in a ring array are fixedly installed at the bottom end of the lower half 405 of the guide collar. A connecting hole 416 corresponding to the connecting post 415 is opened at the protrusion of the outer wall of the tool sleeve 401, and the connecting hole 416 is inserted into the connecting post 415. The upper half 406 of the guide collar is fixedly connected to the outer wall of the tool sleeve 401 by bolts.

[0038] By adopting the above technical solution, the lower half 405 of the guide collar and the upper half 406 of the guide collar are positioned and fitted by the connecting post 415 and the connecting hole 416, and then fastened by bolts to form a complete mounting ring, which facilitates the installation, disassembly and maintenance of the bearing.

[0039] A heat dissipation fin 303 is fixedly installed on the outer wall of the drive shaft 301.

[0040] By adopting the above technical solution, the drive shaft 301 rotates synchronously with the heat dissipation blades 303, actively generating upward forced convection airflow. External gas enters the interior of the main unit housing 1 through the bottom air inlet, and the airflow directly blows on the outer shell of the drive motor 302, directly dissipating heat from the drive motor 302.

[0041] An adjusting screw 507 is rotatably mounted inside the feed housing 2 via a bearing. An adjusting nut seat 508 is threadedly connected to the outer wall of the adjusting screw 507, and the adjusting nut seat 508 is fixedly connected to the lifting arm 505 by bolts.

[0042] By adopting the above technical solution, when the adjusting screw 507 rotates, it can drive the adjusting nut seat 508 and the lifting arm 505 to move up and down.

[0043] A transverse shaft 509 is rotatably mounted on the inner wall of the feed housing 2. A worm wheel 510 is fixedly sleeved on the top of the outer wall of the adjusting screw 507. A worm 511 is fixedly sleeved on the outer wall of the transverse shaft 509, and the worm wheel 510 and the worm 511 mesh with each other.

[0044] By adopting the above technical solution, the worm gear 510 and worm 511 have a self-locking function, which can prevent the adjusting screw 507 from reversing and ensure the stability of the engagement position after adjustment.

[0045] An adjusting handwheel 512 is fixedly installed on the outer wall of the horizontal shaft 509.

[0046] By adopting the above technical solution, the horizontal shaft 509 can be driven to rotate by rotating the adjusting handwheel 512, which in turn drives the adjusting screw 507 to rotate through the worm wheel 510 and worm 511.

[0047] Two symmetrically distributed guide slide rods 513 are fixedly installed inside the feed housing 2. A sliding sleeve 514 is vertically slidably installed on the outer wall of the guide slide rod 513, and the sliding sleeve 514 is fixedly connected to the lifting arm 505.

[0048] By employing the above-mentioned technical solution, the guide rod 513 and the sliding sleeve 514 cooperate with each other to provide stable linear guidance for the up and down movement of the lifting arm 505.

[0049] Working principle: This device is suitable for the precise removal of the reinforcing layer on the end face of non-metallic composite pipes. It uses the power supply module 8 as the overall energy supply unit and the operation control panel 6 as the control core. It has a built-in PLC programmable logic controller, which coordinates the automatic operation of the tool drive component 3 and the tool lifting adjustment component 4. It can be operated manually by hand or with the help of an external pipe drive device to drive the pipe to rotate. The grooving device keeps a fixed position to complete the automated grooving.

[0050] In actual use, the power supply module 8 supplies power to the drive motor 302, servo motor 403, de-energized electromagnet 402, operation control panel 6 and PLC control system. The operator inputs parameters such as grooving depth, speed and feed speed through the operation control panel 6. The PLC receives the signals and performs logic control on each actuator.

[0051] The operator manually positions the grooving device at the top of the pipeline using the operating handle 7, so that the upper positioning roller 503 is in contact with the pipe wall. Then, the operator manually rotates the adjusting handwheel 512. The adjusting handwheel 512 drives the adjusting screw 507 to rotate through the horizontal shaft 509, worm gear 511, and worm wheel 510. This causes the adjusting nut seat 508 to drive the lifting arm 505 to move up and down along the guide slide rod 513 and the sliding sleeve 514. During the movement, the lifting arm 505 drives the four sets of elastic clamping arms 502 to open or close synchronously through the linkage rod 506, so that the lower positioning roller 504 is also in contact with the pipe wall. The upper positioning roller 503 and the lower positioning roller 504 clamp the outer wall of the pipe.

[0052] Then, the operation switch is turned on, and the PLC sends a start command through the operation control panel 6. The drive motor 302 is powered on and runs, driving the drive shaft 301 to rotate at high speed. The drive shaft 301 drives the tool sleeve 401 and the corn milling cutter 404 to rotate synchronously through the spline, forming cutting power. During this process, the drive shaft 301 also drives the heat dissipation blades 303 to rotate, generating an upward forced convection airflow. External cold air enters the housing from the bottom air inlet of the main housing 1, and after forced air cooling of the drive motor 302, it is discharged from the filter at the top of the main housing 1.

[0053] When the corn milling cutter 404 is fed, the de-energized electromagnet 402 is energized and demagnetized under the control of the PLC. The servo motor 403 receives the PLC signal and drives the feed screw 408 to rotate according to the set parameters. This drives the feed nut seat 409 and the feed lifting seat 407 to move up and down precisely along the guide shaft 411 and the guide sleeve 412, completing the axial feed and grooving depth adjustment of the corn milling cutter 404. After the adjustment is in place, the de-energized electromagnet 402 is de-energized and restored to magnetism under the control of the PLC, reliably attracting the armature 410 and realizing the self-locking of the feed nut seat 409 position. This prevents the tool from accidentally slipping down and ensures a constant grooving depth.

[0054] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A grooving device for the end face of a non-metallic composite pipe, comprising a main housing (1) and a feed housing (2), characterized in that: The feed housing (2) is fixedly installed at the bottom of the main housing (1) by bolts. The main housing (1) is provided with a tool drive assembly (3). The feed housing (2) is provided with a tool lifting adjustment assembly (4) that works with the tool drive assembly (3). The bottom of the feed housing (2) is provided with an elastic clamping positioning assembly (5). The main housing (1) is equipped with a symmetrically distributed operation control panel (6) and a power supply module (8). The main housing (1) is fixedly installed with operation handles (7) on both sides by supports. The tool drive assembly (3) includes a drive shaft (301) and a drive motor (302). The drive shaft (301) is rotatably mounted in the middle of the feed housing (2) via bearings. The drive motor (302) is fixedly installed in the main housing (1), and the drive end of the drive motor (302) is connected to the drive shaft (301) via a coupling. The tool lifting adjustment assembly (4) includes a tool sleeve (401), a de-energized electromagnet (402), a servo motor (403), and a corn milling cutter (404). The tool sleeve (401) is vertically slidably sleeved on the outer wall of the drive shaft (301) via a spline. The de-energized electromagnet (402) is fixedly installed on the inner wall of the feed housing (2). The servo motor (403) is fixedly installed on the top of the feed housing (2). The corn milling cutter (404) is fixedly installed on the bottom end of the tool sleeve (401) by bolts. The outer wall of the tool sleeve (401) is sleeved with a guide ring lower half (405) and a guide ring upper half (406). A feed cutter is vertically slidably installed inside the feed housing (2) near the de-energized electromagnet (402). The feed lifting seat (407) is provided, and the lower half of the guide collar (405) and the upper half of the guide collar (406) are rotatably connected to the feed lifting seat (407) through bearings. The feed housing (2) is rotatably installed with a feed screw (408) through bearings. The drive end of the servo motor (403) is connected to the feed screw (408) through a coupling. The feed screw (408) is threadedly connected to the outer wall of the feed nut seat (409). The inner side of the feed nut seat (409) is fixedly connected to the outer wall of the feed lifting seat (407) through bolts. An armature (410) is fixedly installed on the outer wall of the feed nut seat (409), and the armature (410) is in contact with the outer wall of the de-energized electromagnet (402).

2. The end-face grooving device for non-metallic composite pipes as described in claim 1, characterized in that, The elastic clamping positioning component (5) includes a positioning bracket (501) and four elastic clamping arms (502). The positioning bracket (501) is fixedly connected to the feed housing (2) by bolts. The four elastic clamping arms (502) are respectively hinged to the outer periphery of the positioning bracket (501). Four upper positioning rollers (503) are installed at the bottom of the positioning bracket (501). Lower positioning rollers (504) are rotatably installed at the ends of the elastic clamping arms (502). A lifting arm (505) is vertically slidably installed inside the feed housing (2). Two linkage rods (506) are respectively hinged to both sides of the outer wall of the lifting arm (505), and the other end of the linkage rod (506) is hinged to the corresponding elastic clamping arm (502).

3. The end-face grooving device for non-metallic composite pipes as described in claim 1, characterized in that, A guide shaft (411) is fixedly installed inside the feed housing (2) on the side near the feed screw (408). A guide sleeve (412) is vertically slidably installed on the outer wall of the guide shaft (411) via a spline, and the guide sleeve (412) is fixedly installed on the feed lifting seat (407).

4. The end-face grooving device for non-metallic composite pipes as described in claim 3, characterized in that, Two symmetrically distributed buffer plates (413) are vertically slidably installed on the outer wall of the guide shaft (411). Two buffer springs (414) are sleeved on the outer wall of the guide shaft (411), and the two ends of the buffer springs (414) are connected to the buffer plates (413) and the inner wall of the feed housing (2) respectively.

5. The end-face grooving device for non-metallic composite pipes as described in claim 1, characterized in that, The lower half (405) of the guide collar and the upper half (406) of the guide collar close together to form a complete mounting ring. Four connecting posts (415) arranged in a ring array are fixedly installed at the bottom end of the lower half (405). A connecting hole (416) corresponding to the connecting post (415) is opened at the protrusion of the outer wall of the blade sleeve (401), and the connecting hole (416) is inserted into the connecting post (415). The upper half (406) of the guide collar is fixedly connected to the outer wall of the blade sleeve (401) by bolts.

6. The end-face grooving device for non-metallic composite pipes as described in claim 1, characterized in that, The drive shaft (301) has heat dissipation blades (303) fixedly installed on its outer wall.

7. The end-face grooving device for non-metallic composite pipes as described in claim 1, characterized in that, An adjusting screw (507) is rotatably mounted inside the feed housing (2) via a bearing. An adjusting nut seat (508) is threadedly connected to the outer wall of the adjusting screw (507), and the adjusting nut seat (508) is fixedly connected to the lifting arm (505) by bolts.

8. The end-face grooving device for non-metallic composite pipes as described in claim 1, characterized in that, The inner wall of the feed housing (2) is rotatably mounted with a horizontal shaft (509), the top of the outer wall of the adjusting screw (507) is fixedly fitted with a worm wheel (510), the outer wall of the horizontal shaft (509) is fixedly fitted with a worm (511), and the worm wheel (510) and the worm (511) mesh with each other.

9. The end-face grooving device for non-metallic composite pipes as described in claim 8, characterized in that, An adjusting handwheel (512) is fixedly installed on the outer wall of the horizontal shaft (509).

10. The end-face grooving device for non-metallic composite pipes as described in claim 1, characterized in that, Two symmetrically distributed guide slide rods (513) are fixedly installed inside the feed housing (2). A sliding sleeve (514) is vertically slidably installed on the outer wall of the guide slide rod (513), and the sliding sleeve (514) is fixedly connected to the lifting arm (505).

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