Polyethylene pipe production molding processing equipment and process

Abstract

The present invention discloses a polyethylene pipe production, forming and processing equipment and process, which relates to the field of polyethylene pipe inner wall grinding, including a connection unit, an adjustment unit, a multifunctional unit, a grinding unit and a guide unit; the connection unit is located above the polyethylene pipe; the adjustment unit is installed on the outside of the connection unit; the multifunctional unit is installed on the top of the connection unit; the grinding unit is installed on the connection unit; the guide unit is installed on the connection unit and the grinding unit; the connection unit includes: a mounting disc, a rectangular clamping block and a movable mounting plate; the bottom of the mounting disc contacts the polyethylene pipe, and the mounting disc is concentrically arranged with the polyethylene pipe. The polyethylene pipe production, forming and processing equipment and process are convenient for workers to carry, easy to grind polyethylene pipes at different positions, avoid dust from floating out after grinding, and prevent dust from affecting workers' eyes and respiratory system.

Description

Technical Field

[0001] The invention relates to the technical field of inner wall grinding of polyethylene pipes, in particular to a polyethylene pipe production molding processing equipment and process. Background Art

[0002] Polyethylene pipe is a kind of pipe made of polyethylene material, which has the characteristics of high crystallinity and non-polar thermoplastic resin. Polyethylene pipe is widely used in building water supply, building drainage, gas pipeline, agricultural pipe, etc. It is a high-toughness pipe with good toughness and resistance to stress cracking, as well as excellent resistance to rapid crack transmission. Due to the uncleanness of the extruder head and the inner wall of the die, the local temperature is too high, and the die is seriously accumulated, which leads to the inner wall of the produced polyethylene pipe having coke particles. Therefore, the inner wall of the polyethylene pipe needs to be polished during production to ensure that the quality and performance of the pipe meet the production requirements.

[0003] For example, a Chinese patent with publication number CN115122167A discloses a polyethylene pipe production and molding processing equipment and process, including an L-shaped base, a grinding device is arranged above the horizontal section of the L-shaped base, an auxiliary limiting device is arranged on the right side of the upper end surface of the horizontal section of the L-shaped base, driving devices are arranged at the left and right ends of the L-shaped base, and an extrusion device is arranged between the left and right sides of the L-shaped base, and the extrusion device is located above the upper end surface of the horizontal section of the L-shaped base; the present invention drives the arc-shaped telescopic block in the auxiliary limiting device to cooperate with the telescopic extrusion member in the extrusion device to limit and fix the polyethylene pipe to be processed at the specified position by the operator rotating the turntable, thereby improving the stability of the subsequent grinding device, and realizing the grinding of the inner surface of the polyethylene pipe to be processed with different diameters through the extrusion degree of the positioning ball and the elastic member in the grinding device.

[0004] Based on the above patent solution and existing related technologies, the polyethylene pipe production and molding processing equipment currently used still has the following problems: 1. The overall weight of the equipment is large, which is inconvenient for workers to carry and grind polyethylene pipes in different positions; 2. The positioning position and the grinding position generally need to be adjusted twice, which increases the difficulty of adjustment; 3. Polyethylene pipes will generate dust during grinding, which can easily affect the health of workers. Summary of the invention

[0005] The purpose of the present invention is to make up for the shortcomings of the prior art and provide a polyethylene pipe production, molding and processing equipment and process, which has the advantages of being convenient for workers to carry, convenient for grinding polyethylene pipes at different positions, avoiding the dust after grinding from floating out, and preventing the dust after grinding from affecting the eyes and respiratory system of workers. It solves the problems of being inconvenient to grind polyethylene pipes at different positions, the positioning position and the grinding position generally need to be adjusted twice, and the polyethylene pipe will generate dust during grinding, which is easy to affect the health of workers.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a polyethylene pipe production and molding processing equipment, used for grinding the inner wall of the polyethylene pipe; comprising: a connecting unit, an adjusting unit, a multifunctional unit, a grinding unit and a flow guide unit; the connecting unit is located above the polyethylene pipe; the adjusting unit is installed on the outside of the connecting unit; the multifunctional unit is installed on the top of the connecting unit; the grinding unit is installed on the connecting unit; the flow guide unit is installed on the connecting unit and the grinding unit;

[0007] The connection unit comprises: a mounting disc, a rectangular clamping block and a movable mounting plate; the bottom of the mounting disc contacts the polyethylene pipe, and the mounting disc is concentrically arranged with the polyethylene pipe; there are four rectangular clamping blocks, which are slidably mounted on the mounting disc, and the inner sides of the four rectangular clamping blocks contact the outer wall of the polyethylene pipe; there are four movable mounting plates, which are slidably mounted on the mounting disc;

[0008] The adjustment unit includes: a rectangular connecting block, an adjusting ring and an adjusting handle; there are eight rectangular connecting blocks in total, and the eight rectangular connecting blocks are slidably installed on the outside of the mounting disc; the adjusting ring is fixedly installed on the outer ends of the eight rectangular connecting blocks, and the adjusting ring is concentrically arranged with the mounting disc; two groups of circular positioning grooves are opened on the top of the adjusting ring, and eight triangular pushing protrusions are also arranged on the inner wall of the adjusting ring; the adjusting handle is fixedly installed on the right side of the adjusting ring.

[0009] Furthermore, the connecting unit also includes: a circular push rod, a U-shaped push frame, a coil spring A and a coil spring B; there are four circular push rods in total, and the four circular push rods are fixedly installed inside the four rectangular clamping blocks; the four circular push rods are slidably connected to the mounting disc, and the outer ends of the four circular push rods are provided with rounded corners, and the outer ends of the four circular push rods are in contact with the corresponding four triangular push protrusions; there are four U-shaped push frames in total, and the four U-shaped push frames are fixedly installed inside the four movable mounting plates; the four U-shaped push frames are slidably connected to the mounting disc, and the outer ends of the four U-shaped push frames are in contact with the other four triangular push protrusions; there are four coil springs A in total, and the four coil springs A are sleeved on the outside of the four circular push rods, and the two ends of the four coil springs A are respectively connected to the mounting disc and the four rectangular clamping blocks; there are eight coil springs B in total, and the eight coil springs B are sleeved on the outside of the four U-shaped push frames, and the two ends of the eight coil springs B are respectively connected to the mounting disc and the four movable mounting plates.

[0010] Furthermore, the multifunctional unit includes: a carrying handle, a movable mounting frame and a limiting frame; the carrying handle is fixedly mounted on the top of the mounting disc; the movable mounting frame is slidably mounted on the carrying handle; the limiting frame is fixedly mounted on the bottom of the movable mounting frame, and the bottom of the limiting frame is in contact with the mounting disc.

[0011] Furthermore, the multifunctional unit also includes: a circular positioning block and a coil spring C; there are two circular positioning blocks in total, and the two circular positioning blocks are fixedly mounted on the limit frame; the two circular positioning blocks are inserted into two groups of circular positioning grooves, and the bottoms of the two circular positioning blocks are chamfered; there are two coil springs C in total, and the two coil springs C are mounted on the outside of the movable mounting frame, and the coil spring C is located between the carrying handle and the limit frame.

[0012] Furthermore, the grinding unit includes: a servo motor, a circular drive shaft and a grinding roller; there are four servo motors in total, and the four servo motors are fixedly mounted on four movable mounting plates; there are four circular drive shafts in total, and the four circular drive shafts are fixedly mounted on the output shafts of the four servo motors; there are four grinding rollers in total, and the four grinding rollers are fixedly mounted on the outside of the four circular drive shafts, and the outer walls of the four grinding rollers are in contact with the inner wall of the polyethylene pipe.

[0013] Furthermore, the grinding unit also includes: a pulley A and an elastic connecting belt A; there are four pulleys A in total, and the four pulleys A are fixedly installed at the bottom ends of four circular driving shafts; the elastic connecting belt A is installed on the four pulleys A.

[0014] Furthermore, the guide unit includes: a circular mounting ring A, a bearing A, a circular mounting shaft A and a pulley B; there are four circular mounting rings A in total, and the four circular mounting rings A are fixedly installed on the bottom of the mounting disc; there are four bearings A in total, and the four bearings A are installed in the four circular mounting rings A; there are four circular mounting shafts A in total, and the four circular mounting shafts A are installed on the four bearings A; there are four pulleys B in total, and the four pulleys B are installed at the bottom ends of the four circular mounting shafts A, and the four pulleys B are also connected to the elastic connecting belt A.

[0015] Furthermore, the guide unit also includes: a guide impeller A, a circular mounting ring B, a bearing B and a circular mounting shaft B; there are four guide impellers A in total, and the four guide impellers A are fixedly installed on the outside of the four circular mounting shafts A; the circular mounting ring B is fixedly installed on the bottom of the mounting disc; the bearing B is installed in the circular mounting ring B; and the circular mounting shaft B is installed on the bearing B.

[0016] Furthermore, the guide unit also includes: a guide impeller B, a pulley C, a pulley D and an elastic connecting belt B; the guide impeller B is fixedly mounted on the bottom end of the circular mounting shaft B; the pulley C is fixedly mounted on one of the circular mounting shafts A; the pulley D is fixedly mounted on the circular mounting shaft B; and the elastic connecting belt B is mounted on the pulley C and the pulley D.

[0017] Furthermore, the polyethylene pipe production molding process:

[0018] 1) According to the diameter of the polyethylene pipe, the adjusting ring is appropriately rotated by adjusting the handle so that the inner sides of the four rectangular clamping blocks can contact the outer wall of the polyethylene pipe; before rotating the adjusting ring, the staff first pulls the movable mounting frame upward to separate the two circular positioning blocks from the two circular positioning grooves. After the adjusting ring is rotated, the staff loosens the movable mounting frame to insert the two circular positioning blocks into the corresponding two circular positioning grooves;

[0019] 2) Insert the four grinding rollers into the polyethylene pipe through the carrying handle;

[0020] 3) Start the four servo motors, and then the staff turns the carrying handle to make the four grinding rollers contact different positions of the inner wall of the polyethylene pipe.

[0021] Compared with the existing technology, the polyethylene pipe production molding and processing equipment and process have the following beneficial effects:

[0022] 1. The present invention plays a positioning role on the mounting disc, ensuring that the mounting disc can always be concentric with the polyethylene pipe, facilitating the adjustment of the grinding position, and being suitable for polyethylene pipes of different diameters;

[0023] In addition, when the staff rotates the adjusting ring counterclockwise through the adjusting handle, the eight triangular push protrusions can push the four circular push rods and the four U-shaped push frames inward. When the staff rotates the adjusting ring clockwise through the adjusting handle, the four circular push rods and the four U-shaped push frames move outward under the action of four coil springs A and eight coil springs B, which is convenient for installation on polyethylene pipes of different diameters.

[0024] 2. The present invention plays a role in positioning the adjusted adjusting ring. The setting of the two coil springs C plays a role in limiting elastic support for the limiting frame to prevent the two circular positioning blocks from falling off. Before rotating the adjusting ring, the staff needs to pull the movable mounting frame upward to separate the two circular positioning blocks from the two circular positioning grooves. After the adjusting ring is rotated, the staff releases the movable mounting frame to insert the two circular positioning blocks into the corresponding two circular positioning grooves.

[0025] 3. When the four servo motors of the present invention are working, the four grinding rollers rotate, and the inner wall of the polyethylene pipe is automatically ground. During grinding, the staff needs to rotate the carrying handle to make the four grinding rollers contact different positions of the inner wall of the polyethylene pipe.

[0026] In addition, when the four servo motors are working, the elastic connecting belt A can drive the four guide impellers A to rotate; the guide impeller B can rotate simultaneously with the four guide impellers A to prevent the dust after grinding from floating out and prevent the dust after grinding from affecting the eyes and respiratory system of the workers.

[0027] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0029] Figure 2 The present invention is shown Figure 1 Schematic diagram of the main viewing angle structure.

[0030] Figure 3 The schematic diagram of the structure of the connecting unit of the present invention is shown.

[0031] Figure 4 The present invention is shown Figure 3 Schematic diagram of the central cut structure.

[0032] Figure 5 The schematic diagram of the structure of the regulating unit of the present invention is shown.

[0033] Figure 6 The present invention is shown Figure 1 Schematic diagram of the local enlarged structure of area A in the middle.

[0034] Figure 7 The schematic diagram of the structure of the multifunctional unit of the present invention is shown.

[0035] Figure 8 The present invention is shown Figure 1 Schematic diagram of the local enlarged structure of area B in the middle.

[0036] Fig. 9 The present invention is shown Figure 1 Schematic diagram of the bottom perspective structure.

[0037] Fig.10 The schematic diagram of the structure of the mounting disc, the grinding unit and the guide unit of the present invention is shown.

[0038] Fig.11 The present invention is shown Fig.10 Schematic diagram of the central cut structure.

[0039] In the figure:

[0040] 1. Polyethylene pipe;

[0041] 2. Connecting unit; 201. Mounting disc; 202. Rectangular clamping block; 203. Movable mounting plate; 204. Round push rod; 205. U-shaped push frame; 206. Coil spring A; 207. Coil spring B;

[0042] 3. Adjustment unit; 301. Rectangular connection block; 302. Adjustment ring; 3021. Circular positioning groove; 3022. Triangular push protrusion; 303. Adjustment handle;

[0043] 4. Multifunctional unit; 401. Carrying handle; 402. Movable mounting frame; 403. Limiting frame; 404. Circular positioning block; 405. Coil spring C;

[0044] 5. Grinding unit; 501. Servo motor; 502. Circular drive shaft; 503. Grinding roller; 504. Pulley A; 505. Elastic connecting belt A;

[0045] 6. Guide unit; 601. Circular mounting ring A; 602. Bearing A; 603. Circular mounting shaft A; 604. Pulley B; 605. Guide vane A; 606. Circular mounting ring B; 607. Bearing B; 608. Circular mounting shaft B; 609. Guide vane B; 610. Pulley C; 611. Pulley D; 612. Elastic connecting belt B. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figure 1-11 The present invention provides a technical solution: a polyethylene pipe production and molding processing equipment, used for grinding the inner wall of a polyethylene pipe 1; comprising: a connecting unit 2, an adjusting unit 3, a multifunctional unit 4, a grinding unit 5 and a guide unit 6; the connecting unit 2 is located above the polyethylene pipe 1; the adjusting unit 3 is installed on the outside of the connecting unit 2; the multifunctional unit 4 is installed on the top of the connecting unit 2; the grinding unit 5 is installed on the connecting unit 2; the guide unit 6 is installed on the connecting unit 2 and the grinding unit 5.

[0048] Please pay attention to Figures 3 to 6 As shown, the connection unit 2 includes: a mounting disc 201, a rectangular clamping block 202 and a movable mounting plate 203; the bottom of the mounting disc 201 contacts the polyethylene pipe 1, and the mounting disc 201 is concentrically arranged with the polyethylene pipe 1; there are four rectangular clamping blocks 202, and the four rectangular clamping blocks 202 are slidably mounted on the mounting disc 201, and the inner sides of the four rectangular clamping blocks 202 are in contact with the outer wall of the polyethylene pipe 1; there are four movable mounting plates 203, and the four movable mounting plates 203 are slidably mounted on the mounting disc 201; the connection unit 2 also includes: a circular push rod 204, a U-shaped push frame 205, a coil spring A206 and a coil spring B207; there are four circular push rods 204, and the four circular push rods 204 are fixedly mounted inside the four rectangular clamping blocks 202; the four circular push rods 204 are slidably connected to the mounting disc 201, and the four circular push rods 20 4 is provided with a rounded corner at the outer end, and the outer ends of the four circular push rods 204 are in contact with the corresponding four triangular push protrusions 3022; there are four U-shaped push frames 205, and the four U-shaped push frames 205 are fixedly installed inside the four movable mounting plates 203; the four U-shaped push frames 205 are slidably connected with the mounting disc 201, and the outer ends of the four U-shaped push frames 205 are in contact with the other four triangular push protrusions 3022; there are four coil springs A206, and the four coil springs A206 are sleeved on the outside of the four circular push rods 204, and the two ends of the four coil springs A206 are respectively connected to the mounting disc 201 and the four rectangular clamping blocks 202; there are eight coil springs B207, and the eight coil springs B207 are sleeved on the outside of the four U-shaped push frames 205, and the two ends of the eight coil springs B207 are respectively connected to the mounting disc 201 and the four movable mounting plates 203;

[0049] The adjustment unit 3 includes: a rectangular connection block 301, an adjustment ring 302 and an adjustment handle 303; there are eight rectangular connection blocks 301 in total, and the eight rectangular connection blocks 301 are slidably mounted on the outside of the mounting disc 201; the adjustment ring 302 is fixedly mounted on the outer ends of the eight rectangular connection blocks 301, and the adjustment ring 302 is concentrically arranged with the mounting disc 201; two groups of circular positioning grooves 3021 are opened on the top of the adjustment ring 302, and eight triangular pushing protrusions 3022 are also arranged on the inner wall of the adjustment ring 302; the adjustment handle 303 is fixedly mounted on the right side of the adjustment ring 302;

[0050] Since the four rectangular clamping blocks 202 are slidably mounted on the mounting disc 201, and the inner sides of the four rectangular clamping blocks 202 are in contact with the outer wall of the polyethylene pipe 1, the mounting disc 201 is positioned to ensure that the mounting disc 201 can always be concentric with the polyethylene pipe 1. Since the four movable mounting plates 203 are slidably mounted on the mounting disc 201, the grinding position can be adjusted conveniently, and the grinding position is suitable for polyethylene pipes 1 of different diameters.

[0051] In addition, since the inner wall of the adjusting ring 302 is also provided with eight triangular pushing protrusions 3022, and the outer ends of the four circular pushing rods 204 are in contact with the four triangular pushing protrusions 3022, and the outer ends of the four U-shaped pushing frames 205 are in contact with the other four triangular pushing protrusions 3022, when the staff rotates the adjusting ring 302 counterclockwise through the adjusting handle 303, the eight triangular pushing protrusions 3022 can push the four circular pushing rods 204 and the four U-shaped pushing frames 205 to move inward, and when the staff rotates the adjusting ring 302 clockwise through the adjusting handle 303, the four circular pushing rods 204 and the four U-shaped pushing frames 205 move outward under the action of the four coil springs A206 and the eight coil springs B207, which is convenient for installation on polyethylene pipes 1 of different diameters.

[0052] Please pay attention to Figure 7 and Figure 8As shown, the multifunctional unit 4 includes: a carrying handle 401, a movable mounting frame 402 and a limiting frame 403; the carrying handle 401 is fixedly mounted on the top of the mounting disc 201; the movable mounting frame 402 is slidably mounted on the carrying handle 401; the limiting frame 403 is fixedly mounted on the bottom of the movable mounting frame 402, and the bottom of the limiting frame 403 contacts the mounting disc 201; the multifunctional unit 4 also includes: a circular positioning block 404 and a coil spring C405; there are two circular positioning blocks 404, and the two circular positioning blocks 404 are fixedly mounted on the limiting frame 403; the two circular positioning blocks 404 are inserted into two groups of circular positioning grooves 3021, and the bottoms of the two circular positioning blocks 404 are chamfered; there are two coil springs C405, and the two coil springs C405 are mounted on the outside of the movable mounting frame 402, and the coil spring C405 is located between the carrying handle 401 and the limiting frame 403;

[0053] Because the two circular positioning blocks 404 are fixedly mounted on the limit frame 403, and the two circular positioning blocks 404 are inserted into the two circular positioning grooves 3021 in the middle, and the bottoms of the two circular positioning blocks 404 are provided with chamfers, they play a positioning role for the adjusted adjustment ring 302. The setting of the two spiral springs C405 plays a limiting elastic support role for the limit frame 403 to prevent the two circular positioning blocks 404 from falling off; before rotating the adjustment ring 302, the staff needs to first pull up the movable mounting frame 402 to separate the two circular positioning blocks 404 from the two circular positioning grooves 3021. After the adjustment ring 302 is rotated, the staff releases the movable mounting frame 402 to insert the two circular positioning blocks 404 into the corresponding two circular positioning grooves 3021.

[0054] Please pay attention to Figures 9 to 11 As shown, the grinding unit 5 includes: a servo motor 501, a circular drive shaft 502 and a grinding roller 503; there are four servo motors 501, and the four servo motors 501 are fixedly mounted on four movable mounting plates 203; there are four circular drive shafts 502, and the four circular drive shafts 502 are fixedly mounted on the output shafts of the four servo motors 501; there are four grinding rollers 503, and the four grinding rollers 503 are fixedly mounted on the outside of the four circular drive shafts 502, and the outer walls of the four grinding rollers 503 are in contact with the inner wall of the polyethylene pipe 1; the grinding unit 5 also includes: a pulley A504 and an elastic connecting belt A505; there are four pulleys A504, and the four pulleys A504 are fixedly mounted on the bottom ends of the four circular drive shafts 502; the elastic connecting belt A505 is installed on the four pulleys A504;

[0055] The guide unit 6 includes: a circular mounting ring A601, a bearing A602, a circular mounting shaft A603 and a pulley B604; there are four circular mounting rings A601, and the four circular mounting rings A601 are fixedly installed at the bottom of the mounting disc 201; there are four bearings A602, and the four bearings A602 are installed in the four circular mounting rings A601; there are four circular mounting shafts A603, and the four circular mounting shafts A603 are installed on the four bearings A602; there are four pulleys B604, and the four pulleys B604 are installed at the bottom ends of the four circular mounting shafts A603, and the four pulleys B604 are also connected to the elastic connecting belt A505; the guide unit 6 also includes: a guide impeller A605, a circular mounting ring B606, a bearing B607 and a circular Mounting shaft B608; there are four guide vanes A605 in total, and the four guide vanes A605 are fixedly mounted on the outside of four circular mounting shafts A603; the circular mounting ring B606 is fixedly mounted on the bottom of the mounting disc 201; the bearing B607 is mounted in the circular mounting ring B606; the circular mounting shaft B608 is mounted on the bearing B607; the guide unit 6 also includes: a guide vane B609, a pulley C610, a pulley D611 and an elastic connecting belt B612; the guide vane B609 is fixedly mounted on the bottom end of the circular mounting shaft B608; the pulley C610 is fixedly mounted on one of the circular mounting shafts A603; the pulley D611 is fixedly mounted on the circular mounting shaft B608; the elastic connecting belt B612 is mounted on the pulley C610 and the pulley D611;

[0056] Since the four grinding rollers 503 are fixedly mounted on the outside of the four circular drive shafts 502, and the outer walls of the four grinding rollers 503 are in contact with the inner wall of the polyethylene pipe 1, when the four servo motors 501 are working, the four grinding rollers 503 rotate, and the inner wall of the polyethylene pipe 1 is automatically ground; during grinding, the staff needs to rotate the carrying handle 401 to make the four grinding rollers 503 contact different positions of the inner wall of the polyethylene pipe 1;

[0057] In addition, because the four pulleys B604 are installed at the bottom ends of the four circular mounting shafts A603, and the four pulleys B604 are also connected to the elastic connecting belt A505, when the four servo motors 501 are working, the elastic connecting belt A505 can drive the four guide impellers A605 to rotate; and because the pulley C610 is fixedly installed on the circular mounting shaft A603 on the left, and the pulley D611 is fixedly installed on the circular mounting shaft B608, and the elastic connecting belt B612 is installed on the pulley C610 and the pulley D611, the guide impeller B609 can rotate simultaneously with the four guide impellers A605, thereby avoiding the dust after grinding from floating out, and preventing the dust after grinding from affecting the workers' eyes and respiratory system.

[0058] In the embodiment of the present disclosure, a polyethylene pipe production molding process is provided:

[0059] 1) According to the diameter of the polyethylene pipe 1, the adjusting ring 302 is appropriately rotated by adjusting the handle 303 so that the inner sides of the four rectangular clamping blocks 202 can contact the outer wall of the polyethylene pipe 1; before rotating the adjusting ring 302, the staff first pulls the movable mounting frame 402 upward to separate the two circular positioning blocks 404 from the two circular positioning grooves 3021. After the adjusting ring 302 is rotated, the staff loosens the movable mounting frame 402 to insert the two circular positioning blocks 404 into the corresponding two circular positioning grooves 3021;

[0060] 2) Insert the four grinding rollers 503 into the polyethylene pipe 1 through the carrying handle 401;

[0061] 3) Start the four servo motors 501 , and then the staff rotates the carrying handle 401 to make the four grinding rollers 503 contact different positions of the inner wall of the polyethylene pipe 1 .

[0062] Working principle: First, according to the diameter of the polyethylene pipe 1, the adjusting ring 302 is appropriately rotated by adjusting the handle 303, so that the inner sides of the four rectangular clamping blocks 202 can contact the outer wall of the polyethylene pipe 1, which plays a positioning role on the installation disc 201, ensuring that the installation disc 201 can always be concentric with the polyethylene pipe 1; before rotating the adjusting ring 302, the staff first pulls the movable mounting frame 402 upwards to separate the two circular positioning blocks 404 from the two circular positioning grooves 3021. After the adjusting ring 302 is rotated, the staff loosens the movable mounting frame 402 again, so that the two circular positioning blocks 404 are inserted into the corresponding two circular positioning grooves 3021, which plays a limiting elastic support role on the limiting frame 403, avoiding the two The circular positioning block 404 falls off; the four grinding rollers 503 are inserted into the interior of the polyethylene pipe 1 through the carrying handle 401; the four servo motors 501 are started, and when the four servo motors 501 are working, the four grinding rollers 503 rotate, and the inner wall of the polyethylene pipe 1 is automatically ground. Then the staff rotates the carrying handle 401 to make the four grinding rollers 503 contact different positions of the inner wall of the polyethylene pipe 1. When the four servo motors 501 are working, the elastic connecting belt A505 can drive the four guide impellers A605 to rotate; the guide impeller B609 can rotate simultaneously with the four guide impellers A605 to avoid the dust after grinding from floating out, and prevent the dust after grinding from affecting the eyes and respiratory system of the workers.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A polyethylene pipe production and molding processing equipment, used for grinding the inner wall of a polyethylene pipe (1); comprising: A connecting unit (2), an adjusting unit (3), a multifunctional unit (4), a grinding unit (5) and a guide unit (6); characterized in that the connecting unit (2) is located above the polyethylene pipe (1); the adjusting unit (3) is installed on the outside of the connecting unit (2); the multifunctional unit (4) is installed on the top of the connecting unit (2); the grinding unit (5) is installed on the connecting unit (2); and the guide unit (6) is installed on the connecting unit (2) and the grinding unit (5); The connection unit (2) comprises: a mounting disc (201), a rectangular clamping block (202) and a movable mounting plate (203); the bottom of the mounting disc (201) contacts the polyethylene pipe (1), and the mounting disc (201) and the polyethylene pipe (1) are arranged concentrically; there are four rectangular clamping blocks (202) in total, and the four rectangular clamping blocks (202) are slidably mounted on the mounting disc (201), and the inner sides of the four rectangular clamping blocks (202) are in contact with the outer wall of the polyethylene pipe (1); there are four movable mounting plates (203) in total, and the four movable mounting plates (203) are slidably mounted on the mounting disc (201); The connection unit (2) further comprises: a circular push rod (204), a U-shaped push frame (205), a coil spring A (206) and a coil spring B (207); a total of four circular push rods (204) are provided, and the four circular push rods (204) are fixedly mounted inside the four rectangular clamping blocks (202); the four circular push rods (204) are slidably connected to the mounting disc (201), and the outer ends of the four circular push rods (204) are provided with rounded corners, and the outer ends of the four circular push rods (204) are in contact with four corresponding triangular push protrusions (3022); a total of four U-shaped push frames (205) are provided, and the four U-shaped push frames (205) are fixedly mounted inside the four movable mounting plates (203); the four The U-shaped pushing frame (205) is slidably connected to the mounting disc (201), and the outer ends of the four U-shaped pushing frames (205) are in contact with the other four triangular pushing protrusions (3022); a total of four coil springs A (206) are provided, and the four coil springs A (206) are sleeved on the outside of the four circular pushing rods (204), and the two ends of the four coil springs A (206) are respectively connected to the mounting disc (201) and the four rectangular clamping blocks (202); a total of eight coil springs B (207) are provided, and the eight coil springs B (207) are sleeved on the outside of the four U-shaped pushing frames (205), and the two ends of the eight coil springs B (207) are respectively connected to the mounting disc (201) and the four movable mounting plates (203); The adjustment unit (3) comprises: a rectangular connection block (301), an adjustment ring (302) and an adjustment handle (303); there are eight rectangular connection blocks (301) in total, and the eight rectangular connection blocks (301) are slidably mounted on the outside of the mounting disc (201); the adjustment ring (302) is fixedly mounted on the outer ends of the eight rectangular connection blocks (301), and the adjustment ring (302) and the mounting disc (201) are arranged concentrically; two groups of circular positioning grooves (3021) are formed on the top of the adjustment ring (302), and eight triangular pushing protrusions (3022) are also formed on the inner wall of the adjustment ring (302); the adjustment handle (303) is fixedly mounted on the right side of the adjustment ring (302); The multifunctional unit (4) comprises: a carrying handle (401), a movable mounting frame (402) and a limiting frame (403); the carrying handle (401) is fixedly mounted on the top of the mounting disc (201); the movable mounting frame (402) is slidably mounted on the carrying handle (401); the limiting frame (403) is fixedly mounted on the bottom of the movable mounting frame (402), and the bottom of the limiting frame (403) is in contact with the mounting disc (201); The multifunctional unit (4) further comprises: a circular positioning block (404) and a coil spring C (405); two circular positioning blocks (404) are provided, and the two circular positioning blocks (404) are fixedly mounted on the limiting frame (403); the two circular positioning blocks (404) are inserted into two groups of circular positioning grooves (3021), and the bottoms of the two circular positioning blocks (404) are provided with chamfers; two coil springs C (405) are provided, and the two coil springs C (405) are mounted outside the movable mounting frame (402), and the coil springs C (405) are located between the carrying handle (401) and the limiting frame (403); The grinding unit (5) comprises: a servo motor (501), a circular drive shaft (502) and a grinding roller (503); there are four servo motors (501) in total, and the four servo motors (501) are fixedly mounted on four movable mounting plates (203); there are four circular drive shafts (502) in total, and the four circular drive shafts (502) are fixedly mounted on the output shafts of the four servo motors (501); there are four grinding rollers (503) in total, and the four grinding rollers (503) are fixedly mounted outside the four circular drive shafts (502), and the outer walls of the four grinding rollers (503) are in contact with the inner wall of the polyethylene pipe (1).

2. A polyethylene pipe production and molding processing equipment according to claim 1, characterized in that: The grinding unit (5) further comprises: a pulley A (504) and an elastic connecting belt A (505); there are four pulleys A (504) in total, and the four pulleys A (504) are fixedly mounted on the bottom ends of four circular drive shafts (502); and the elastic connecting belt A (505) is mounted on the four pulleys A (504).

3. A polyethylene pipe production and molding processing equipment according to claim 2, characterized in that: The guide unit (6) comprises: a circular mounting ring A (601), a bearing A (602), a circular mounting shaft A (603), a pulley B (604) and a guide impeller A (605); a total of four circular mounting rings A (601) are provided, and the four circular mounting rings A (601) are fixedly installed on the bottom of the mounting disc (201); a total of four bearings A (602) are provided, and the four bearings A (602) are installed in the four circular mounting rings A (601); the circular mounting shaft A There are four circular mounting shafts A (603) in total, and the four circular mounting shafts A (603) are mounted on four bearings A (602); there are four pulleys B (604) in total, and the four pulleys B (604) are mounted at the bottom ends of the four circular mounting shafts A (603), and the four pulleys B (604) are also connected to the elastic connecting belt A (505); there are four guide impellers A (605) in total, and the four guide impellers A (605) are fixedly mounted on the outside of the four circular mounting shafts A (603).

4. The polyethylene pipe production and molding processing equipment according to claim 3 is characterized in that: The guide unit (6) further comprises: a circular mounting ring B (606), a bearing B (607), a circular mounting shaft B (608), a guide vane B (609), a pulley C (610), a pulley D (611) and an elastic connecting belt B (612); the circular mounting ring B (606) is fixedly mounted on the bottom of the mounting disc (201); the bearing B (607) is mounted in the circular mounting ring B (606); the circular mounting shaft B (608) is mounted on the bearing B (607); the guide vane B (609) is fixedly mounted on the bottom end of the circular mounting shaft B (608); the pulley C (610) is fixedly mounted on one of the circular mounting shafts A (603); the pulley D (611) is fixedly mounted on the circular mounting shaft B (608); and the elastic connecting belt B (612) is mounted on the pulley C (610) and the pulley D (611).

5. A polyethylene pipe production and molding process, using the polyethylene pipe production and molding equipment as claimed in claim 4, characterized in that: The steps are as follows: 1) According to the diameter of the polyethylene pipe (1), the adjusting ring (302) is appropriately rotated by adjusting the handle (303) so that the inner sides of the four rectangular clamping blocks (202) can contact the outer wall of the polyethylene pipe (1); before rotating the adjusting ring (302), the staff first pulls the movable mounting frame (402) upward to separate the two circular positioning blocks (404) from the two circular positioning grooves (3021); after the adjusting ring (302) is rotated, the staff then loosens the movable mounting frame (402) to insert the two circular positioning blocks (404) into the corresponding two circular positioning grooves (3021); 2) inserting four grinding rollers (503) into the interior of the polyethylene pipe (1) by means of the carrying handle (401); 3) Start the four servo motors (501), and then the staff rotates the carrying handle (401) to make the four grinding rollers (503) contact different positions of the inner wall of the polyethylene pipe (1).

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