阅读说明：本技术 一种绝热保温pe复合颗粒 (Heat insulation PE composite particle ) 是由 朱楠楠 朱峰 于 2020-03-31 设计创作，主要内容包括：本发明公开了一种绝热保温PE复合颗粒,该PE复合颗粒通过下述重量份原料制备得到：10-40份PE颗粒、1-3份木屑、1-3份发泡剂、1-2份耦合剂、1-4份玻化微珠颗粒；本发明发泡剂和玻化微珠在耦合剂作用下形成对木屑显微结构的支撑和填充,形成细密实心泡孔；包裹于PE原料外层后对其形成显著地保护作用,一方面抑制了热传导,提高保温效果；另一方面,外层的添加料又具有良好的耐火性能并有效抑制温差效应下的空气流动,具有良好的绝热防火效果。(The invention discloses a heat insulation PE composite particle which is prepared from the following raw materials in parts by weight: 10-40 parts of PE particles, 1-3 parts of sawdust, 1-3 parts of foaming agent, 1-2 parts of coupling agent and 1-4 parts of vitrified micro-bead particles; the foaming agent and the vitrified micro bubbles form support and filling for a wood chip microstructure under the action of the coupling agent to form fine solid cells; the PE material is wrapped on the outer layer of the PE material to form a remarkable protection effect, so that on one hand, heat conduction is inhibited, and the heat insulation effect is improved; on the other hand, the additive of the outer layer has good fire resistance, effectively inhibits the air flow under the temperature difference effect and has good heat insulation and fire prevention effects.)

1. The heat-insulation PE composite particle is characterized by being prepared from the following raw materials in parts by weight: 10-40 parts of PE particles, 1-3 parts of sawdust, 1-3 parts of foaming agent, 1-2 parts of coupling agent and 1-4 parts of vitrified micro-bead particles;

the PE composite particle is prepared by the following steps:

step one, weighing the raw materials, uniformly mixing 1-3 parts of sawdust, 1-3 parts of foaming agent, 1-2 parts of coupling agent and 1-4 parts of vitrified micro-bead particles, adding the mixture into a high-speed stirrer for mixing, and extruding and granulating the mixture through a double-screw extruder to obtain an additive;

step two, adding the additive into 10-40 parts of PE particles, uniformly mixing, heating to 170-210 ℃, and cooling to obtain PE composite particles;

and step three, adding the prepared PE composite particles into a feed hopper of a screening machine, enabling the PE composite particles to fall into a screening box, driving a rotating motor to drive an eccentric wheel to rotate, pushing a sliding plate to slide by the eccentric wheel through a rocker, further driving the screening box to reciprocate, and screening through a filter screen to obtain qualified particles.

2. The PE composite particle for heat insulation and preservation according to claim 1, wherein the size of the wood chips is 0.1-0.3 cm; the foaming agent is sodium bicarbonate or aluminum powder; the coupling agent is titanate or silane; the vitrified small ball is an expansion vitrified small ball with the grain diameter of 0.3-0.5 mm.

3. The PE composite particle for heat insulation and preservation according to claim 1, wherein the sieving machine comprises the following working steps:

step one, conveying PE composite particles into a feeding hopper (3), enabling the PE composite particles to fall into a screening box (412), driving a rotating motor (41) to drive an eccentric wheel to rotate, pushing a sliding plate I (43) to slide by the eccentric wheel through a rocker, further driving the screening box (412) to reciprocate, and screening through a filter screen (411);

secondly, the screened particles enter a discharge hopper (5), a packaging bag is sleeved on a movable discharge hopper (52), a second air cylinder (63) is driven to push two U-shaped rocker arms (62) to move, the packaging bag is clamped through a first clamping plate (64), then the first air cylinder (51) is driven to open the movable discharge hopper (52), and the particles are added into the packaging bag;

step three, after the particles are added, loosening the packaging bag, conveying the packaging bag to the lower part of the rotary support (9) through the conveying belt (7), driving the fourth cylinder (96) to drive the rocker arm (94) to move, clamping the packaging bag again through the second clamping plate (93), driving the third cylinder (91) to drive the rotary arm (92) to rotate, further driving the rotary shaft (97) to rotate, and further driving the packaging bag to rotate; finally, the cloth is conveyed to the lower part of the seam mechanism (8) and is sealed manually.

4. The PE composite particle with the heat insulation and preservation functions as claimed in claim 1, wherein the screening machine comprises a supporting bracket (1), a conveying box (2), a feeding hopper (3), a screening frame (4), a discharging hopper (5), a clamping mechanism (6), a conveying belt (7), a slit mechanism (8) and a rotating bracket (9), stop rods are arranged on two sides of the conveying belt (7), the slit mechanism (8), the rotating bracket (9) and the supporting bracket (1) are sequentially arranged above the conveying belt (7), the conveying box (2) is fixedly arranged at the top of the supporting bracket (1), the conveying box (2) is of a hollow structure, the feeding hopper (3) is fixedly arranged at the top of the conveying box (2), and the screening frame (4) is fixedly arranged in the conveying box (2);

the screening frame (4) is of a frame-shaped hollow structure, a rotating motor (41) is fixedly mounted at the top of the screening frame (4), an eccentric wheel is fixedly mounted on an output shaft of the rotating motor (41), the eccentric wheel is connected with a first sliding plate (43) through a rocker, a second sliding plate (44) is arranged on one side of the first sliding plate (43), the bottoms of the second sliding plate (44) and the first sliding plate (43) are in sliding connection with the screening frame (4), a guide rod (46) is fixedly mounted at the other end of the second sliding plate (44), the guide rod (46) penetrates through a support plate (42), and a spring (45) is sleeved on the guide rod (46) between the support plate (42) and the second sliding plate (44); two backup pads (42) are vertically installed on screening frame (4), two backup pad (42) are located slide two (44), slide one (43) outside, the equal fixed mounting in top of slide two (44), slide one (43) has screening case (412), screening case (412) and backup pad (42) sliding connection, screening case (412) are hollow structure, the inside of screening case (412) has U template (413) through stopper (47), gag lever post (49) and spacing picture peg (410) fixed mounting, the bottom center department fixed mounting of U template (413) has filter screen (411), the top of U template (413) is fixed all around and is all fixed mounting has spacing picture peg (410), the one end fixed mounting of gag lever post (49) has stopper (47), gag lever post (49) passes U type and leads to groove (48) and inserts in spacing picture peg (410), the U-shaped through groove (48) is formed in the periphery of the screening box (412), and two limiting holes (414) are formed in the U-shaped through groove (48).

5. The PE composite particle with the heat insulation and preservation functions as claimed in claim 4, wherein a discharge hopper (5) is fixedly installed below the screening frame (4), two movable discharge hoppers (52) are rotatably connected to the bottom of the discharge hopper (5), and two first air cylinders (51) are connected between the two movable discharge hoppers (52).

6. The PE composite particle for heat insulation and preservation as claimed in claim 4, wherein clamping mechanisms (6) are fixedly mounted on two sides of the inner wall of the conveying box (2), the clamping mechanisms (6) are located on two sides of the discharging hopper (5), each clamping mechanism (6) comprises a mounting plate (61), U-shaped rocker arms (62) are rotatably connected to two sides of each mounting plate (61), the two U-shaped rocker arms (62) are connected through a second air cylinder (63), and a first clamping plate (64) is fixedly mounted at the end portions of the U-shaped rocker arms (62).

7. The PE composite particle for heat insulation and preservation according to claim 4, wherein a third cylinder (91) is fixedly mounted at the top of the rotary support (9), a rotary arm (92) is movably connected to the end of a piston rod of the third cylinder (91), a rotary shaft (97) is rotatably connected to the bottom of the rotary arm (92), the rotary shaft (97) penetrates through the rotary support (9) and is connected with a connecting rod (95), rocker arms (94) are movably connected to two sides of the connecting rod (95), the tops of the rocker arms (94) are connected through a fourth cylinder (96), and a second clamp plate (93) is fixedly mounted at the bottom of the rocker arms (94).

8. The PE composite particle for heat insulation and preservation according to claim 4, wherein the seam mechanism (8) comprises a seam mechanism support (81), a gear box (84) is fixedly mounted at the top of the seam mechanism support (81), a rotary rocker arm (83) is rotatably connected to one side of the gear box (84), chain wheels (82) are rotatably connected to both sides of the gear box (84), the chain wheels (82) are connected with lifting blocks (87) through chains, the lifting blocks (87) are slidably connected with the seam mechanism support (81), winding supports (85) are fixedly mounted at the top of the lifting blocks (87), wire coils are sleeved on the winding supports (85), and a sewing machine (86) is fixedly mounted at one side of the lifting blocks (87).

Technical Field

The invention relates to the technical field of PE (polyethylene) particles, in particular to a heat-insulation PE composite particle.

Background

PE is a macromolecular organic compound with the simplest structure, is a macromolecular material which is widely applied in the world at present, is polymerized by ethylene, has the comprehensive advantages of safety, sanitation, convenient construction, long service life and the like, and is widely applied to building water supply, building drainage, buried drain pipes, building heating and gas transmission pipes, electrical and telecommunication protective sleeves, industrial pipes, agricultural pipes and the like.

The patent No. CN107254090A discloses a modified PE recycled plastic particle and a preparation process thereof, the flame retardant property of the PE recycled plastic particle is obviously improved compared with that of a common recycled PE plastic particle, but the PE particle also has the following defects: this PE granule insulating heat insulating ability is poor, leads to its life low to at the in-process of preparation PE granule, be not convenient for sieve the granule and be convenient for the filter screen and change the clearance.

Disclosure of Invention

In order to overcome the technical problems, the invention aims to provide the heat-insulating PE composite particles, and the foaming agent and the vitrified micro bubbles form support and filling on a wood chip microstructure under the action of the coupling agent to form fine solid foam holes; the PE material is wrapped on the outer layer of the PE material to form a remarkable protection effect, so that on one hand, heat conduction is inhibited, and the heat insulation effect is improved; on the other hand, the additive material of the outer layer has good fire resistance, effectively inhibits the air flow under the temperature difference effect and has good heat insulation and fire prevention effects; according to the test of national standard, the heat conductivity coefficient (core material) is 0.035W/(m.k), the combustion performance reaches A1 level, and the heat preservation performance and the heat insulation and fire resistance performance both meet the requirements; based on PE fireproof heat preservation, the flame retardant and heat preservation material is combined with organic matters and inorganic matters to be mixed, so that the flame retardant and heat preservation material has good fireproof heat preservation effect, is energy-saving and environment-friendly, and is beneficial to large-scale popularization and large-scale application;

the PE composite particles are conveyed into the feeding hopper, fall into the screening box and drive the rotating motor to drive the eccentric wheel to rotate, the eccentric wheel pushes the first sliding plate to slide through the rocker to drive the screening box to reciprocate, screening is carried out through the filter screen, and the second sliding plate compresses the spring in the reciprocating motion process of the screening box, so that the buffering performance is good, and the service life of equipment is prolonged; meanwhile, the limiting rod is inserted into the limiting inserting plate, the limiting block is rotated and then is matched with the limiting hole to fix the limiting rod, so that the U-shaped plate is fixed, otherwise, the U-shaped plate can be disassembled, the U-shaped plate is convenient to mount and disassemble, and the filter screen is convenient to maintain and clean; meanwhile, the limiting rod can slide in the U-shaped through groove, so that the height of the U-shaped plate can be conveniently adjusted, and the U-shaped plate is convenient to use.

The purpose of the invention can be realized by the following technical scheme:

the heat-insulation PE composite particle is prepared from the following raw materials in parts by weight: 10-40 parts of PE particles, 1-3 parts of sawdust, 1-3 parts of foaming agent, 1-2 parts of coupling agent and 1-4 parts of vitrified micro-bead particles;

the PE composite particle is prepared by the following steps:

step one, weighing the raw materials, uniformly mixing 1-3 parts of sawdust, 1-3 parts of foaming agent, 1-2 parts of coupling agent and 1-4 parts of vitrified micro-bead particles, adding the mixture into a high-speed stirrer for mixing, and extruding and granulating the mixture through a double-screw extruder to obtain an additive;

step two, adding the additive into 10-40 parts of PE particles, uniformly mixing, heating to 170-210 ℃, and cooling to obtain PE composite particles;

and step three, adding the prepared PE composite particles into a feed hopper of a screening machine, enabling the PE composite particles to fall into a screening box, driving a rotating motor to drive an eccentric wheel to rotate, pushing a sliding plate to slide by the eccentric wheel through a rocker, further driving the screening box to reciprocate, and screening through a filter screen to obtain qualified particles.

As a further scheme of the invention: the size of the sawdust is 0.1-0.3 cm; the foaming agent is sodium bicarbonate or aluminum powder; the coupling agent is titanate or silane; the vitrified small ball is an expansion vitrified small ball with the grain diameter of 0.3-0.5 mm.

As a further scheme of the invention: the screening machine comprises the following working steps:

conveying PE composite particles into a feeding hopper, enabling the PE composite particles to fall into a screening box, driving a rotating motor to drive an eccentric wheel to rotate, pushing a sliding plate to slide by the eccentric wheel through a rocker, further driving the screening box to reciprocate, and screening through a filter screen;

secondly, the screened particles enter a discharge hopper, a packaging bag is sleeved on the movable discharge hopper, a second air cylinder is driven to push two U-shaped rocker arms to move, the packaging bag is clamped through a first clamping plate, then the first air cylinder is driven to open the movable discharge hopper, and the particles are added into the packaging bag;

step three, after the particles are added, loosening the packaging bag, conveying the packaging bag to the lower part of the rotary support through the conveying belt, driving the cylinder four to drive the rocker arm to move, clamping the packaging bag again through the clamping plate two, driving the cylinder three to drive the rotary arm to rotate, and further driving the rotary shaft to rotate, so that the packaging bag is driven to rotate; and finally, conveying the blank to the lower part of the seam mechanism, and sealing manually.

As a further scheme of the invention: the screening machine comprises a supporting bracket, a conveying box, a feeding hopper, a screening bracket, a discharging hopper, a clamping mechanism, a conveying belt, a seam mechanism and a rotating bracket, wherein stop rods are arranged on two sides of the conveying belt, the seam mechanism, the rotating bracket and the supporting bracket are sequentially arranged above the conveying belt, the conveying box is fixedly arranged at the top of the supporting bracket, the conveying box is of a hollow structure, the feeding hopper is fixedly arranged at the top of the conveying box, and the screening bracket is fixedly arranged in the conveying box;

the screening frame is of a frame-shaped hollow structure, a rotating motor is fixedly mounted at the top of the screening frame, an output shaft of the rotating motor is fixedly provided with an eccentric wheel, the eccentric wheel is connected with a first sliding plate through a rocker, one side of the first sliding plate is provided with a second sliding plate, the bottoms of the second sliding plate and the first sliding plate are in sliding connection with the screening frame, the other end of the second sliding plate is fixedly provided with a guide rod, the guide rod penetrates through a support plate, and a spring is sleeved on the guide rod between the support plate and the second sliding plate; vertical two backup pads of installing on the screening frame, two the backup pad is located slide two, the slide one outside, the equal fixed mounting in top of slide two, slide one has the screening case, screening case and backup pad sliding connection, the screening case is hollow structure, there is the U template inside through stopper, gag lever post and spacing picture peg fixed mounting of screening case, the bottom center department fixed mounting of U template has the filter screen, the top of U template is fixed all fixed mounting all around has spacing picture peg, the one end fixed mounting of gag lever post has the stopper, the gag lever post passes in the U type leads to the groove and inserts spacing picture peg, the U type leads to the groove and sets up around screening case, two spacing holes have been seted up to the inside that the U type led to the groove.

As a further scheme of the invention: the screening frame's below fixed mounting has the hopper, the bottom of hopper is rotated and is connected with two activity hoppers, two cylinder one is connected between the activity hopper.

As a further scheme of the invention: the equal fixed mounting in inner wall both sides of delivery box has clamping mechanism, clamping mechanism is located the row hopper both sides, clamping mechanism includes the mounting panel, the mounting panel both sides are all rotated and are connected with U type rocking arm, two connect through cylinder two between the U type rocking arm, the tip fixed mounting of U type rocking arm has splint one.

As a further scheme of the invention: the top fixed mounting of runing rest has cylinder three, the three piston rod tip swing joint of cylinder has the swinging boom, the bottom of swinging boom rotates and is connected with the pivot, the pivot runs through the runing rest and is connected with the connecting rod, the equal swing joint in both sides of connecting rod has the rocking arm, two connect through cylinder four between the top of rocking arm, two the bottom fixed mounting of rocking arm has splint two.

As a further scheme of the invention: the seam mechanism is including seam mechanism support, the top fixed mounting of seam mechanism support has the gear box, one side of gear box is rotated and is connected with rotatory rocking arm, the both sides of gear box are all rotated and are connected with the sprocket, the sprocket passes through the chain and is connected with the elevator, elevator and seam mechanism support sliding connection, the top fixed mounting of elevator has the wire winding support, the wire winding support has cup jointed the drum, one side fixed mounting of elevator has the sewing machine.

The invention has the beneficial effects that:

the foaming agent and the vitrified micro bubbles form support and filling for a wood chip microstructure under the action of the coupling agent to form fine solid cells; the PE material is wrapped on the outer layer of the PE material to form a remarkable protection effect, so that on one hand, heat conduction is inhibited, and the heat insulation effect is improved; on the other hand, the additive material of the outer layer has good fire resistance, effectively inhibits the air flow under the temperature difference effect and has good heat insulation and fire prevention effects; according to the test of national standard, the heat conductivity coefficient (core material) is 0.035W/(m.k), the combustion performance reaches A1 level, and the heat preservation performance and the heat insulation and fire resistance performance both meet the requirements; based on PE fireproof heat preservation, the flame retardant and heat preservation material is combined with organic matters and inorganic matters to be mixed, so that the flame retardant and heat preservation material has good fireproof heat preservation effect, is energy-saving and environment-friendly, and is beneficial to large-scale popularization and large-scale application;

the PE composite particles are conveyed into the feeding hopper, fall into the screening box and drive the rotating motor to drive the eccentric wheel to rotate, the eccentric wheel pushes the first sliding plate to slide through the rocker to drive the screening box to reciprocate, screening is carried out through the filter screen, and the second sliding plate compresses the spring in the reciprocating motion process of the screening box, so that the buffering performance is good, and the service life of equipment is prolonged; meanwhile, the limiting rod is inserted into the limiting inserting plate, the limiting block is rotated and then is matched with the limiting hole to fix the limiting rod, so that the U-shaped plate is fixed, otherwise, the U-shaped plate can be disassembled, the U-shaped plate is convenient to mount and disassemble, and the filter screen is convenient to maintain and clean; meanwhile, the limiting rod can slide in the U-shaped through groove, so that the height of the U-shaped plate can be conveniently adjusted, and the use is convenient;

the screened particles enter a discharge hopper, a packaging bag is sleeved on a movable discharge hopper, a second air cylinder is driven to push two U-shaped rocker arms to move, the packaging bag is clamped through a first clamping plate, the use is convenient, manual operation is avoided, the working efficiency is reduced, then the first air cylinder is driven to open the movable discharge hopper, the particles are added into the packaging bag, and the first air cylinder opens the movable discharge hopper, so that the conveying speed is convenient to adjust, and the use function is convenient;

after the particles are added, the packaging bag is loosened, the packaging bag is conveyed to the lower part of the rotating support through the conveying belt, the driving cylinder IV drives the rocker arm to move, the packaging bag is clamped again through the clamping plate II, the driving cylinder III drives the rotating arm to rotate, and further drives the rotating shaft to rotate, so that the packaging bag is driven to rotate, and the particles in the packaging bag can be effectively more uniform by driving the packaging bag to rotate; and finally, conveying the cloth to the lower part of the sewing mechanism, manually sealing the cloth, rotating the rotary rocker arm, driving the chain wheel to rotate through the gear box, and further driving the sewing machine to lift, so as to adjust the height of the sewing machine.

Drawings

The invention will be further described with reference to the accompanying drawings.

Figure 1 is a schematic view of the overall structure of the screening machine of the present invention;

FIG. 2 is a schematic view of the overall construction of the screening frame of the present invention;

FIG. 3 is an enlarged view of the area A in FIG. 2;

FIG. 4 is a schematic view of the overall structure of the seaming mechanism of the present invention;

FIG. 5 is a schematic view of the overall structure of the rotating bracket according to the present invention;

FIG. 6 is a front view of the rotary stand according to the present invention;

FIG. 7 is a schematic view of the overall structure of a hopper according to the present invention;

fig. 8 is a schematic view of the entire structure of the clamping mechanism of the present invention.

In the figure: 1. a support bracket; 2. a delivery box; 3. a feed hopper; 4. a screening rack; 5. a discharge hopper; 6. a clamping mechanism; 7. a conveyor belt; 8. a seam mechanism; 9. rotating the bracket; 41. a rotating electric machine; 42. a support plate; 43. a first sliding plate; 44. a second sliding plate; 45. a spring; 46. a guide bar; 47. a limiting block; 48. a U-shaped through groove; 49. a limiting rod; 410. a limiting inserting plate; 411. filtering with a screen; 412. screening the box; 413. a U-shaped plate; 414. a limiting hole; 51. a first cylinder; 52. a movable discharge hopper; 61. mounting a plate; 62. a U-shaped rocker arm; 63. a second air cylinder; 64. a first clamping plate; 81. a seaming mechanism support; 82. a sprocket; 83. rotating the rocker arm; 84. a gear case; 85. a winding bracket; 86. a sewing machine; 87. a lifting block; 91. a third air cylinder; 92. a rotating arm; 93. a second clamping plate; 94. a rocker arm; 95. a connecting rod; 96. a cylinder IV; 97. a rotating shaft.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

Referring now to figures 1-8 of the drawings,