CN111483161A

CN111483161A - Preparation method of PE (polyethylene) pipe

Info

Publication number: CN111483161A
Application number: CN202010167842.1A
Authority: CN
Inventors: 娄军
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-26
Filing date: 2017-12-26
Publication date: 2020-08-04
Also published as: CN108219244A; CN108219244B

Abstract

The invention discloses a preparation method of a PE (polyethylene) pipe, wherein the PE pipe comprises a pipe body and an outer layer coated outside the pipe body, the pipe body is a PE pipe, and the outer layer is a glass fiber layer; the pipe body comprises the following components in parts by weight: 15-20 parts of polyethylene, 10-15 parts of ethylene propylene rubber, 10-12 parts of polyolefin fiber, 6-8 parts of stabilizer, 3-5 parts of quartz sand, 2-3 parts of glass fiber reinforced plastic and 2-3 parts of activated carbon. According to the invention, the raw materials such as quartz sand, glass fiber reinforced plastic and activated carbon are added into the PE pipe, so that the finally prepared PE pipe has higher strength, and the quartz sand has stronger corrosion resistance and wear resistance, so that the prepared PE pipe has good corrosion resistance and wear resistance, is not easy to damage and has long service life.

Description

Preparation method of PE (polyethylene) pipe

Technical Field

The invention belongs to the technical field of PE pipe processing, and particularly relates to a preparation method of a PE pipe.

Background

The cable guide pipe is a commonly used protective pipe in cable laying in various places in recent years, and frequently adopted plastic pipes such as MPP, PE and the like have poor strength, cannot bear heavy pressure, are flammable and fragile, are not heat-resistant, are not anti-aging and have short service life. In order to enhance the strength of the pipe, in the existing pipe processing, a layer of glass fiber with resin is wound outside the pipe, and after the resin is solidified, the glass fiber and the resin form a protective layer together to enhance the strength of the pipe. However, in the processing process, due to the existence of the resin, a certain time is needed for the resin to be cooled and solidified, the time is long, and the working efficiency is low.

Disclosure of Invention

The invention provides a preparation method of a PE pipe, which is high in working efficiency and strong in scratch resistance of the prepared pipe, in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a preparation method of a PE pipe comprises a pipe body and an outer layer coated outside the pipe body, wherein the pipe body is a PE pipe, and the outer layer is a glass fiber layer; the pipe body comprises the following components in parts by weight: 15-20 parts of polyethylene, 10-15 parts of ethylene propylene rubber, 10-12 parts of polyolefin fiber, 6-8 parts of stabilizer, 3-5 parts of quartz sand, 2-3 parts of glass fiber reinforced plastic and 2-3 parts of activated carbon.

Further, the feed also comprises the following components in parts by weight: 5-8 parts of PE resin, 3-5 parts of polyacrylate, 3-5 parts of bentonite, 2-3 parts of antioxidant, 2-3 parts of plasticizer and 1-2 parts of defoaming agent.

According to the invention, the raw materials such as quartz sand, glass fiber reinforced plastic and activated carbon are added into the PE pipe, so that the finally prepared PE pipe has higher strength, and the quartz sand has stronger corrosion resistance and wear resistance, so that the prepared PE pipe has good corrosion resistance and wear resistance, is not easy to damage, has long service life, and the scratch resistance degree of the surface is greatly improved; the activated carbon can generate a synergistic effect with quartz sand, so that the quartz sand has good cohesive force, and the finally prepared PE pipe has higher strength, corrosion resistance and wear resistance compared with the condition of only adding a single quartz sand agent.

The invention also discloses a processing method of the PE pipe, which comprises the following steps:

(1) mixing the following raw materials: polyethylene, ethylene propylene rubber, polyolefin fiber, a stabilizer, quartz sand, glass fiber reinforced plastic and active carbon are put into a stirrer to be uniformly stirred, and then a forming pipe blank is extruded by a forming machine;

(2) winding glass fiber soaked by resin outside a tube blank through winding equipment, putting quartz sand to the tube blank wound with the glass fiber after the winding thickness of the glass fiber reaches 12-14mm, enabling the glass fiber to cover the quartz sand outside the tube blank in the winding process, and stopping putting the quartz sand after finishing winding a layer of quartz sand;

(3) continuing to wind the glass fiber, and stopping winding the glass fiber after the glass fiber is wound again to reach the thickness of 15-20 mm;

(4) and drying the pipe blank by drying equipment to obtain a finished product of the PE pipe.

According to the invention, the quartz sand is wound on the outer surface of the pipe, so that the strength of the pipe is greatly improved, the pipe is not easy to crack, break, scratch and the like in the using process, and the service life of the pipe is prolonged; after the glass fiber is soaked in the resin, the glass fiber is more tightly connected with the pipe, and the glass fiber is not easy to separate; the pipe is dried, so that the resin wound outside the pipe along with the glass fiber can be dried quickly, the drying and solidification time of the resin is shortened, and the working efficiency is improved.

Further, the winding thickness of the quartz sand is 30-40 mm; the thickness of quartz sand sets up to thick to this quartz sand layer can effectually protect tubular product, avoids the condition by the fish tail to appear in tubular product.

Further, the raw materials added in the step (1) also comprise PE resin, polyacrylate, bentonite, an antioxidant, a plasticizer and a defoaming agent

Further, the winding device comprises a support, a station rod capable of penetrating into the tube body, a driving part arranged on the support and used for driving the station rod to rotate, an outer layer processing mechanism used for winding glass fibers outside the tube body, a material taking frame used for taking the tube body off the support and a drying device used for drying the tube body; the sliding seat is provided with a storage bin, the upper part of the storage bin is provided with an opening, the bottom of the storage bin is provided with a roller, and a gap is reserved between the roller and the bottom wall of the storage bin. According to the invention, by arranging the drying equipment, the processed pipe can be dried, so that the resin wound outside the pipe along with the glass fiber can be dried quickly, the drying and solidifying time of the resin is shortened, and the working efficiency is improved; the support frame is arranged, so that the pipe communicated with the station rod can be conveniently detached from the rack by directly adopting the support frame, and the station rod and the pipe are directly moved into the drying equipment by conveying the support frame, so that the pipe is not required to be carried manually, the operation is labor-saving, and the working efficiency is high; the automatic winding of the glass fibers is realized through the equipment, so that the working efficiency is high, the glass fibers wound through the equipment are uniformly distributed, the thickness uniformity of the glass fiber layer is ensured, and the qualified rate of the processed pipe is high; can hold the resin in the storage silo, the clearance between roller bearing and the storage silo can supply glass fiber to pass to glass fiber will have the resin, and the adhesion between and the tubular product is stronger, and twine outside the tubular product and the intensity after solidifying is higher, and the whole fastness of the tubular product that processing obtained is good and difficult by wearing and tearing or scratch.

Further, the material taking frame comprises a frame body, universal wheels arranged at the lower part of the frame body, a material supporting seat which can move up and down and is arranged in the frame body, a main driving part and a secondary driving part, wherein the main driving part and the secondary driving part are used for driving the material supporting frame to move upwards so as to extend out of the frame body; the rolling wheels are arranged, so that the material taking frame can be conveniently moved, and the position movement of the pipe is more labor-saving; the material supporting seat can be supported upwards from the inside of the frame body through the operation of the main driving part and the secondary driving part, so that the station rod is jacked up from the frame body and separated from the frame body, the material taking frame is moved at the moment, the roller drives the material taking frame to move outwards, the station rod and the pipe can be driven to move to a position away from the frame body, and then the material supporting seat can retract into the frame body again; .

Furthermore, the main driving part comprises a connecting seat fixedly arranged on the frame body, a wrench hinged on the connecting seat, a blocking part arranged on the material supporting seat and matched with the wrench, and a U-shaped supporting sleeve fixedly arranged outside the frame body; the U-shaped support sleeve is arranged below the blocking part, and the wrench is at least partially positioned between the U-shaped support sleeve and the blocking part; the wrench is hinged on the connecting seat when in use, so that the wrench can form a lever, when one end of the wrench is pressed down, the other end of the wrench enjoys tilting to push the blocking part to move upwards, and further drives the material supporting seat to move upwards, and the operation is labor-saving; the U-shaped supporting sleeve can limit the other end of the wrench, so that the angle between the wrench and the rack body is maintained between 45 and 60 degrees, and the operation is smoother when the wrench is pulled.

Furthermore, the secondary driving part comprises an operation cavity arranged in the frame body, a driving block arranged in the operation cavity, a resetting piece used for connecting the driving block and the inner wall of the operation cavity, and a movable block connected with the wrench; the lower part of the movable block penetrates into the operation cavity, the lower part of the movable block is provided with a first inclined plane, one end of the driving block is provided with a roller matched with the first inclined plane, and the other end of the driving block is provided with a second inclined plane; when the wrench is pressed down, the movable block moves downwards along with the downward movement of the wrench, so that the movable block is inserted between the two resetting pieces, the driving block is pushed outwards, and the driving block is inserted below the material supporting frame; in the process that the material supporting frame moves upwards, the driving block can also play a certain role in pushing the material supporting frame, and the material supporting frame does not move upwards completely in consideration of the downward pressing force of the wrench, so that the force applied to the wrench by a person can be reduced, and labor is saved in operation; meanwhile, after the driving block is inserted below the material supporting frame, the driving block directly supports the material supporting frame, and at the moment, an operator only needs to apply force for preventing the wrench from automatically turning upwards; need not still to guarantee to exert the power on the spanner and will maintain unsettled the support work or material rest of propping all the time when removing the support body, the operation is more laborsaving, and has guaranteed the support body at the in-process that removes, can not appear operating personnel holding power not enough and make the support work or material rest move down again and make the station pole not follow the support body and move the condition that gets off from the frame.

Furthermore, the reset piece is a stainless steel elastic piece which is arranged in a wavy structure; the resetting capability is strong, and the damage is not easy.

Further, the reset piece is a rubber strip arranged in a wave-shaped structure; the cost is low, and the processing and the manufacturing are convenient.

Further, the outer layer processing mechanism comprises a slide rail, a slide seat which can move left and right and is arranged on the slide rail, a support frame which is arranged on the slide seat, a cushion seat which is arranged on the support frame and a feed inlet which is arranged on the slide seat and is matched with the cushion seat; the upper part of the sliding seat is provided with a hopper, the lower part of the hopper is provided with a discharge hole, and the lower part of the sliding seat is provided with a material receiving frame; the glass fiber is fed from the feeding hole, the feeding hole can be driven to move at a constant speed along the length direction of the pipe in the process that the sliding seat moves along the sliding rail, and then the glass fiber is controlled to be uniformly wound outside the pipe, so that the thickness uniformity of a glass layer is realized; the hopper can be used for storing quartz sand, and after the ten thousand layers of glass fibers are wound, the quartz sand can be put in simultaneously when the second layer of glass fibers are wound, so that a quartz sand layer exists between the second layer of glass fibers and the first layer of glass fibers, the strength of the pipe is higher, and the quality of the pipe is improved; connect and to place on the work or material rest and connect the workbin, and then quartz sand is at the in-process of puting in, and unnecessary quartz sand will be collected by connecing the workbin, and recycle, resources are saved reduces extravagantly.

Furthermore, the drying equipment comprises a box body, a heating element arranged in the box body, a drying rack, a conveying rail arranged on the drying rack, two driving gears used for driving the conveying rail to rotate and a feeding slide rail extending to the position of the conveying rail; the two driving gears are respectively provided with a driving shaft in a penetrating way and connected through a belt; the drying rack is provided with a position adjusting component matched with the driving shaft; the solidification of resin is accelerated by the arrangement of the drying equipment, the pipes are conveyed by the conveying track, and the pipes are directly dried in the conveying process, so that the pipes are prevented from staying in the box body for too long time, and the working efficiency is improved; during drying, the pipe is not taken out from the station rod, and the station rod can be scratched into the conveying track along the radian of the feeding track, so that the operation is labor-saving; through the setting of position control part, the position of the drive gear of adjustment gear that can be convenient to the length that adjustment transfer track is located the box, the time length of adjustment tubular product stoving carries out the stoving of different realizations to the glass fiber's of winding different thickness tubular product, and the tubular product quality is better, and drying equipment's flexibility is high, and application scope is wide.

Furthermore, the position adjusting part comprises a fixed seat fixedly arranged on the driving shaft, a strip-shaped groove arranged on the drying rack, a screw arranged on the fixed seat and penetrating through the strip-shaped groove, and a nut arranged on the screw; the drying rack is provided with a convex seat, a screw rod penetrates through the convex seat, and the screw rod is abutted against the fixed seat; the strip-shaped groove can limit the motion track of the fixed seat, when the nut is loosened and the screw on the convex seat is rotated, the fixed seat can be controlled to be ejected outwards or the conflict of the screw on the fixed seat is released, and the position of the fixed seat is further conveniently adjusted; after the position of fixing base was confirmed simultaneously, the conflict of the screw on the accessible convex seat and the locking of nut realize the dual location to the fixing base, and the fixing base is difficult for taking place to shift.

Furthermore, the conveying track comprises a plurality of sheet bodies which are movably connected with each other, a roller and a protruding part are arranged on each sheet body, and a space is reserved between each protruding part and the roller; due to the movable connection of the sheet bodies, the conveying track not only has larger supporting force and strength, but also can realize larger bending, so that the conveying track not only can adapt to the shape of the driving gear, but also can convey heavy pipes; a groove for accommodating the station rod is formed between the roller and the protruding part, so that the pipe cannot roll on the conveying rail randomly in the drying process; the arrangement of the roller can reduce the friction force applied to the station rod when the station rod slides into the space between the roller and the protruding part.

In summary, the invention has the following advantages: the raw materials such as quartz sand, glass fiber reinforced plastic and activated carbon are added into the PE pipe, so that the finally prepared PE pipe is high in strength, and the quartz sand has high corrosion resistance and wear resistance, so that the prepared PE pipe has high corrosion resistance and wear resistance, is not easy to damage and is long in service life.

Drawings

Fig. 1 is a schematic structural view of a winding apparatus of the present invention.

Fig. 2 is a schematic view of the driving member and the station lever.

Fig. 3 is a schematic structural diagram of the material taking frame of the present invention.

Fig. 4 is a cross-sectional view of the extractor of the present invention.

Fig. 5 is a schematic structural diagram of the reset element and the driving block of the present invention.

Fig. 6 is a schematic structural view of the drying apparatus of the present invention.

FIG. 7 is a schematic structural view of the PE pipe of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Example 1

A preparation method of a PE pipe comprises the following steps: (1) obtaining raw materials: 15kg of polyethylene, 10kg of ethylene propylene rubber, 10kg of polyolefin fiber, 6 kg of stabilizer, 3 kg of quartz sand, 2 kg of glass fiber reinforced plastic, 2 kg of activated carbon, 5kg of PE resin, 3 kg of polyacrylate, 3 kg of bentonite, 2 kg of antioxidant, 2 kg of plasticizer and 1 kg of defoamer; then, the raw materials are: polyethylene, ethylene propylene rubber, polyolefin fiber, a stabilizer, quartz sand, glass fiber reinforced plastic, activated carbon, PE resin, polyacrylate, bentonite, an antioxidant, a plasticizer and a defoaming agent are put into a stirrer to be uniformly stirred, and then a forming pipe blank is extruded by a forming machine; (2) winding glass fiber soaked by resin outside a pipe blank through winding equipment, putting quartz sand to the pipe blank wound with the glass fiber after the winding thickness of the glass fiber reaches 12mm, enabling the glass fiber to cover the quartz sand outside the pipe blank in the winding process, and stopping putting the quartz sand after a layer of 30mm quartz sand is wound; (3) continuing to wind the glass fiber, and stopping winding the glass fiber after the glass fiber is wound again to reach the thickness of 15 mm; (4) and drying the pipe blank by drying equipment to obtain a finished product of the PE pipe.

The former is the prior art, and the working principle thereof is also the prior art, and is not described again.

As shown in fig. 7, the PE pipe includes a pipe body 11 and an outer layer 12 wrapped outside the pipe body, the pipe body 11 is a PE pipe, the outer layer 12 is a glass fiber layer, and the glass fiber layer is formed by winding glass fibers on the outer wall of the pipe body; the pipe body 11 comprises the following components in parts by weight: 15 parts of polyethylene, 10 parts of ethylene propylene rubber, 10 parts of polyolefin fiber, 6 parts of a stabilizer, 3 parts of quartz sand, 2 parts of glass fiber reinforced plastic, 2 parts of activated carbon, 5 parts of PE resin, 3 parts of polyacrylate, 3 parts of bentonite, 2 parts of an antioxidant, 2 parts of a plasticizer and 1 part of a defoaming agent; as shown in fig. 1 to 6, the winding apparatus includes a support 2, a station rod 3 capable of penetrating into the tube, a driving component 4 disposed on the support for driving the station rod to rotate, an outer layer processing mechanism 5 for winding glass fiber outside the tube, a material taking rack 6 for taking the tube off the support, and a drying apparatus for drying the tube; specifically, the outer layer processing mechanism 5 comprises a slide rail 51, a slide seat 52 which can move left and right and is arranged on the slide rail, a support 53 arranged on the slide seat, a pad 54 arranged on the support 53 and a feed inlet which is arranged on the slide seat and is matched with the pad; the displacement driving part is a rodless cylinder arranged along the length direction of the sliding rail, the sliding seat is connected with a rotor of the rodless cylinder, and the sliding seat can be driven to move left and right along the sliding rail when the rodless cylinder is started; the glass fiber is flattened on the cushion seat after passing through the feed inlet, and then is wound outside the pipe in order; preferably, a storage bin 10 is arranged on the side of the sliding seat 52, the storage bin 10 is made of plastic, and the upper part of the storage bin is provided with an opening; the bottom of the storage bin 10 is provided with a roller 101, a gap for glass fiber to pass through is formed between the roller 101 and the bottom wall of the storage bin 10, and resin is arranged in the storage bin, so that the glass fiber passes through the gap, adheres to the resin and is wound outside the pipe body.

Furthermore, quartz sand can be put on the pipe in the winding process, and the quartz sand can be coated between the two layers of glass fibers; specifically, a hopper 56 made of plastic is arranged at the upper part of the sliding seat 52, a discharge hole 57 is arranged at the lower part of the hopper, and quartz sand can flow out from the discharge hole; preferably, the lower part of the sliding seat is provided with a material receiving frame 58 made of plastic, so that quartz sand can be recycled.

The driving part 4 comprises a supporting seat 41 arranged on the driving part, a roller 42 and a gear 43 which are arranged in the supporting seat, and a driving part 44; the supporting seat 41 is hollow, the roller 42 and the gear 43 are both arranged in the supporting seat, a rotating shaft is arranged in the roller, and the end part of the rotating shaft can be rotatably arranged on the inner wall of the supporting seat in a penetrating way; the driving part 41 is arranged on the rack, the driving part is a motor directly purchased from the market, and an output shaft of the motor penetrates into the supporting seat to be connected with the gear 43; between the roller 42 and the upper part of the gear 43 there is a V-like space 45 in which the end of the station rod is placed, and on the outer surface of the end of the station rod 3 there are arranged at regular intervals bar-shaped teeth 31 which can engage with the gear so that when the gear rotates, it can drive the station rod to rotate.

As shown in fig. 4-6, the material taking frame 6 includes a frame body 61, a universal wheel 62 disposed at a lower portion of the frame body, a material supporting seat 63 disposed in the frame body and capable of moving up and down, and a primary driving component and a secondary driving component for driving the material supporting frame to move up and extend out of the frame body; the frame body 61 and the material supporting seat 63 are made of metal, and the lower part of the frame body is arranged in a triangular structure, so that the structure of the frame body is more stable; specifically, the main driving part comprises a connecting seat 64 fixedly arranged on the frame body, a wrench 65 hinged on the connecting seat, a blocking part 66 arranged on the material supporting seat and matched with the wrench, and a U-shaped supporting sleeve 67 fixedly arranged outside the frame body; the connecting seat 64 is formed by directly extending outwards from the side part of the frame body, the U-shaped supporting sleeve 67 is made of metal, and the U-shaped supporting sleeve 67 is in interference fit with the frame body, so that the U-shaped supporting sleeve 67 cannot fall off the frame body; the blocking part is a convex column formed by directly extending the side wall of the material supporting seat outwards, the U-shaped supporting sleeve 67 is arranged below the blocking part, the wrench 65 is arranged in a V shape, the tip part is abutted against the blocking part, one arm is hinged with the connecting seat, and the other arm is arranged between the U-shaped supporting sleeve 67 and the blocking part 66; the wrench is pressed down and the arm hinged with the connecting seat is pressed down, so that the blocking part can be pried to drive the material supporting seat to move upwards, and the upper part of the material supporting seat extends out of the frame body.

The secondary driving part comprises an operation cavity 71 arranged in the frame body, a driving block 72 arranged in the operation cavity, a reset piece 73 used for connecting the driving block and the inner wall of the operation cavity, and a movable block 74 connected with the wrench; the movable block is fixedly connected with the wrench, and when the wrench is pressed down, the movable block moves down along with the wrench; specifically, the movable block comprises a connecting rod 741 and a connecting block 742 fixedly connected to the lower portion of the connecting rod, the connecting block is disposed in the operating cavity, and the connecting rod partially penetrates into the operating cavity; the movable block and the driving block are both made of metal, in this embodiment, the reset pieces 73 are stainless steel elastic pieces arranged in a wavy structure, the two reset pieces 73 are arranged, one end of each of the two reset pieces 73 is connected with the inner wall of the operation cavity, and the other end of each of the two reset pieces 73 is connected with the driving block; a space for the connection block to penetrate is formed between the two resetting pieces 73, further, a first inclined surface 743 is arranged at the lower part of the movable block, a roller 721 matched with the first inclined surface is arranged at one end of the driving block, and a second inclined surface 722 is arranged at the other end of the driving block; when the wrench is pressed down to drive the movable block to move downwards, the first inclined plane 741 of the movable block abuts against the roller, the movable block gradually pushes the driving block to move outwards along with the downward movement of the movable block, the reset piece is stretched, and the second inclined plane at the end part of the driving block is inserted below the material supporting frame to jack the material supporting frame upwards; preferably, a roller is also arranged on one side of the lower part of the material supporting frame, which is close to the driving block; in other embodiments, the restoring member 73 can also be two rubber strips arranged in a wave-shaped structure.

Specifically, as shown in fig. 7, the drying apparatus includes a box 81, a heating element 82 disposed in the box, a drying rack 83, a conveying track 84 disposed on the drying rack, two driving gears 85 for driving the conveying track to rotate, and a feeding slide rail 86, where the feeding slide rail 86 is a stainless steel rod body, and is disposed on the drying rack, one end of the feeding slide rail extends out of the box, and the other end of the feeding slide rail extends to the position of the conveying track; the heating element is a heating pipe directly purchased from the market and arranged on the upper bottom wall of the box body, and the left side and the right side of the box body are both provided with openings so as to form a feeding hole and a discharging hole respectively; the conveying track 84 includes a plurality of stainless steel sheets 841 movably connected to each other, the stainless steel sheets are provided with a roller 842 and a protrusion 843, a space is provided between the protrusion 843 and the roller 842, and the protrusion is formed by directly extending outwards on the side edge of the stainless steel sheet 841.

A driving shaft 87 is respectively arranged on the two driving gears in a penetrating way, the two driving shafts are connected through a belt, one driving shaft is provided with a motor, and the driving shaft is driven to rotate through the action of the motor; preferably, the drying rack 83 is provided with a position adjusting component matched with the driving shaft, and the position adjusting component comprises a fixed seat 91, a strip-shaped groove, a screw 93 and a nut 94 arranged on the screw; the fixed seat 91 is fixedly arranged with the driving shaft, the strip-shaped groove is arranged on the drying rack, the screw 93 is arranged on the fixed seat and penetrates through the strip-shaped groove, and the screw 93 penetrates through the strip-shaped groove and then is connected with the nut 94; in order to prevent the position of the fixing seat from deviating, a boss 95 is fixedly arranged on the drying rack, a screw 96 penetrates through the boss, and one end of the screw abuts against the fixing seat 91.

The specific working principle is as follows: firstly, a station rod penetrates through a pipe, then the station rod is moved to a support, and the end part of the station rod is arranged on a roller and a gear; then, the driving piece is started, and the gear drives the station rod to rotate; simultaneously, adhering the end parts of the glass fibers to the outer surface of the pipe body, starting the rodless cylinders simultaneously to drive the sliding seat to move at a constant speed along the length direction of the sliding rail, and winding the glass fibers outside the pipe in a spiral shape in the moving process; after winding two layers of glass fibers, adding quartz sand into the hopper, spraying the quartz sand onto the pipe from the discharge port, coating the quartz sand by the glass fibers, and after winding one layer, not adding the quartz sand; continuing to wind the glass fiber, and controlling the driving piece to stop by a worker after the belt is wound to a proper thickness; then moving the material taking frame to the position below the station rod, pressing down the wrench to enable the material supporting frame to move upwards to jack the station rod up from the gear, and then moving the material taking frame to drive the station rod to move away from the rack; then, the pressing of the wrench is loosened, and the material taking frame is moved to the position of the drying equipment; then, the worker moves the station rod together with the pipe to the conveying rail, and the pipe is dried.

Example 2

A preparation method of a PE pipe comprises the following steps: (1) obtaining raw materials: 20 kg of polyethylene, 15kg of ethylene propylene rubber, 12 kg of polyolefin fiber, 8 kg of stabilizer, 5kg of quartz sand, 3 kg of glass fiber reinforced plastic, 3 kg of activated carbon, 8 kg of PE resin, 5kg of polyacrylate, 5kg of bentonite, 3 kg of antioxidant, 3 kg of plasticizer and 2 kg of defoamer; then, the raw materials are: polyethylene, ethylene propylene rubber, polyolefin fiber, a stabilizer, quartz sand, glass fiber reinforced plastic, activated carbon, PE resin, polyacrylate, bentonite, an antioxidant, a plasticizer and a defoaming agent are put into a stirrer to be uniformly stirred, and then a forming pipe blank is extruded by a forming machine; (2) winding glass fiber soaked by resin outside a pipe blank through winding equipment, putting quartz sand to the pipe blank wound with the glass fiber after the winding thickness of the glass fiber reaches 14mm, enabling the glass fiber to cover the quartz sand outside the pipe blank in the winding process, and stopping putting the quartz sand after finishing winding a layer of quartz sand of 40 mm; (3) continuing to wind the glass fiber, and stopping winding the glass fiber after the glass fiber is wound again to reach the thickness of 20 mm; (4) and drying the pipe blank by drying equipment to obtain a finished product of the PE pipe.

As shown in fig. 7, the PE pipe includes a pipe body 11 and an outer layer 12 wrapped outside the pipe body, the pipe body 11 is a PE pipe, the outer layer 12 is a glass fiber layer, and the glass fiber layer is formed by winding glass fibers on the outer wall of the pipe body; the pipe body 11 comprises the following components in parts by weight: 20 parts of polyethylene, 15 parts of ethylene propylene rubber, 12 parts of polyolefin fiber, 8 parts of stabilizer, 5 parts of quartz sand, 3 parts of glass fiber reinforced plastic, 3 parts of activated carbon, 8 parts of PE resin, 5 parts of polyacrylate, 5 parts of bentonite, 3 parts of antioxidant, 3 parts of plasticizer and 2 parts of defoaming agent.

The former is the prior art, and the working principle thereof is also the prior art, and is not described again. The structure of the winding device is the same as that in embodiment 1, and is not described again.

Example 3

A preparation method of a PE pipe comprises the following steps: (1) obtaining raw materials: 20 kg of polyethylene, 10kg of ethylene propylene rubber, 12 kg of polyolefin fiber, 6 kg of stabilizer, 5kg of quartz sand, 3 kg of glass fiber reinforced plastic, 3 kg of activated carbon, 5kg of PE resin, 3 kg of polyacrylate, 3 kg of bentonite, 3 kg of antioxidant, 2 kg of plasticizer and 2 kg of defoamer; then, the raw materials are: polyethylene, ethylene propylene rubber, polyolefin fiber, a stabilizer, quartz sand, glass fiber reinforced plastic, activated carbon, PE resin, polyacrylate, bentonite, an antioxidant, a plasticizer and a defoaming agent are put into a stirrer to be uniformly stirred, and then a forming pipe blank is extruded by a forming machine; (2) winding glass fiber soaked by resin outside a pipe blank through winding equipment, putting quartz sand to the pipe blank wound with the glass fiber after the winding thickness of the glass fiber reaches 12mm, enabling the glass fiber to cover the quartz sand outside the pipe blank in the winding process, and stopping putting the quartz sand after a layer of 30mm quartz sand is wound; (3) continuing to wind the glass fiber, and stopping winding the glass fiber after the glass fiber is wound again to reach the thickness of 20 mm; (4) and drying the pipe blank by drying equipment to obtain a finished product of the PE pipe.

As shown in fig. 7, the PE pipe includes a pipe body 11 and an outer layer 12 wrapped outside the pipe body, the pipe body 11 is a PE pipe, the outer layer 12 is a glass fiber layer, and the glass fiber layer is formed by winding glass fibers on the outer wall of the pipe body; the pipe body 11 comprises the following components in parts by weight: 20 parts of polyethylene, 10 parts of ethylene propylene rubber, 12 parts of polyolefin fiber, 6 parts of stabilizer, 5 parts of quartz sand, 3 parts of glass fiber reinforced plastic, 3 parts of activated carbon, 5 parts of PE resin, 3 parts of polyacrylate, 3 parts of bentonite, 3 parts of antioxidant, 2 parts of plasticizer and 2 parts of defoaming agent.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. A preparation method of a PE pipe is characterized by comprising the following steps: the PE pipe comprises a pipe body (11) and an outer layer (12) coated outside the pipe body, wherein the pipe body (11) is a PE pipe, and the outer layer (12) is a glass fiber layer; the pipe body (11) comprises the following components in parts by weight: 5-8 parts of PE resin, 3-5 parts of polyacrylate, 3-5 parts of bentonite, 2-3 parts of antioxidant, 2-3 parts of plasticizer, 1-2 parts of defoaming agent, 15-20 parts of polyethylene, 10-15 parts of ethylene propylene rubber, 10-12 parts of polyolefin fiber, 6-8 parts of stabilizer, 3-5 parts of quartz sand, 2-3 parts of glass fiber and 2-3 parts of activated carbon;

the method comprises the following steps:

mixing the following raw materials: PE resin, polyacrylate, bentonite, an antioxidant, a plasticizer, a defoaming agent, polyethylene, ethylene propylene rubber, polyolefin fiber, a stabilizer, quartz sand, glass fiber reinforced plastic and activated carbon are put into a stirrer to be uniformly stirred, and then a forming pipe blank is extruded by a forming machine;

winding glass fiber soaked by resin outside a tube blank through winding equipment, putting quartz sand to the tube blank wound with the glass fiber after the winding thickness of the glass fiber reaches 12-14mm, enabling the glass fiber to cover the quartz sand outside the tube blank in the winding process, and stopping putting the quartz sand after finishing winding a layer of quartz sand; the winding thickness of the quartz sand is 30-40 mm;

continuing to wind the glass fiber, and stopping winding the glass fiber after the glass fiber is wound again to reach the thickness of 15-20 mm;

then drying the pipe blank by drying equipment to obtain a finished PE pipe;

the winding device comprises a support (2), a station rod (3) capable of penetrating into the pipe body, a driving part (4) arranged on the support and used for driving the station rod to rotate, an outer layer processing mechanism (5) used for winding glass fibers outside the pipe body, a material taking frame (6) used for taking the pipe body off the support and a drying device used for drying the pipe body, wherein a storage bin (10) is arranged on the sliding seat (52), the upper part of the storage bin (10) is provided with an opening, a rolling shaft (101) is arranged at the bottom of the storage bin (10), and a gap is formed between the rolling shaft (101) and the bottom wall of the storage bin (10); the material taking frame (6) comprises a frame body (61), universal wheels (62) arranged at the lower part of the frame body, a material supporting seat (63) which can move up and down and is arranged in the frame body, and a main driving part and a secondary driving part which are used for driving the material supporting frame to move upwards so as to extend out of the frame body; the main driving part comprises a connecting seat (64) fixedly arranged on the frame body, a spanner (65) hinged on the connecting seat, a blocking part (66) arranged on the material supporting seat and matched with the spanner, and a U-shaped supporting sleeve (67) fixedly arranged outside the frame body; the U-shaped supporting sleeve (67) is arranged below the blocking part, and the wrench (65) is at least partially positioned between the U-shaped supporting sleeve (67) and the blocking part (66); the secondary driving part comprises an operation cavity (71) arranged in the frame body, a driving block (72) arranged in the operation cavity, a resetting piece (73) used for connecting the driving block and the inner wall of the operation cavity, and a movable block (74) connected with the wrench; the lower part of the movable block penetrates into the operation cavity (75), the lower part of the movable block is provided with a first inclined surface (741), one end of the driving block is provided with a roller (721) matched with the first inclined surface, and the other end of the driving block is provided with a second inclined surface (722).