CN113500718A

CN113500718A - Modified plastic and preparation process thereof

Info

Publication number: CN113500718A
Application number: CN202110781093.6A
Authority: CN
Inventors: 董玮
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-10
Filing date: 2021-07-10
Publication date: 2021-10-15

Abstract

The invention relates to the technical field of high polymer materials, in particular to a modified plastic and a preparation process thereof, wherein the preparation process of the modified plastic comprises the following steps: the method comprises the following steps: mincing waste plastics; step two: adding additives into the waste plastics in batches, and uniformly stirring the waste plastics and the additives; step three: mixing the uniform waste plastic and the additive, and filtering out impurities; step four; the modified plastic prepared by the modified plastic preparation process comprises the following raw materials, by weight, 80 parts of recycled plastic, 20 parts of glass fiber, 5 parts of antimony oxide, 5 parts of phosphate, 3 parts of compatilizer and 10 parts of inorganic filler, and the additives can be uniformly added into the raw materials of the plastic in batches.

Description

Modified plastic and preparation process thereof

Technical Field

The invention relates to the technical field of high polymer materials, in particular to a modified plastic and a preparation process thereof.

Background

A modified plastic pellet production apparatus, for example, described in publication No. 203485329U, comprising a feeding device, a twin-screw extruder, a water cooling device, an air drying device and a pellet cutter; the air drying device comprises a plurality of groups of wire drying frames and at least one air blowing device, each wire drying frame consists of a support and second wire supporting rollers arranged on the support, and the plurality of groups of second wire supporting rollers are parallel to each other; gaps for the modified plastic wire rods to transversely pass through are reserved between the left side and the right side of a top cover of the air blowing device and the top of the air outlet box, wire guide rollers are respectively arranged on the left side and the right side of the top cover, and the two groups of wire guide rollers are parallel to each other; the second wire supporting roller and the gap are positioned at the same horizontal height, and at least one group of wire drying frames are positioned on the front side of the air blowing device; the horizontal distance between the tail end of the water cooling device and the wire inlet of the particle cutting machine is 2-5 m; the disadvantage of this patent is that the additives cannot be added to the plastic raw material in uniform batches.

Disclosure of Invention

The invention aims to provide a modified plastic and a preparation process thereof, which can uniformly add additives into plastic raw materials in batches.

The purpose of the invention is realized by the following technical scheme:

a preparation process of modified plastics comprises the following steps:

the method comprises the following steps: mincing waste plastics;

step two: adding additives into the waste plastics in batches, and uniformly stirring the waste plastics and the additives;

step three: mixing the uniform waste plastic and the additive, and filtering out impurities;

step four; the impurities are gathered together and cooled for convenient collection.

The utility model provides a modified plastics preparation facilities includes the additive storehouse, and a housing, the baffle, rotating ring and actuating lever, the lower extreme in additive storehouse is equipped with the chamfer, be equipped with a week filled hole on the shell, additive storehouse sliding connection is on the shell, be equipped with a plurality of springs between additive storehouse and the shell, baffle sliding connection is in the shell, be equipped with a plurality of springs between baffle and the shell, the actuating lever rotates to be connected on the shell, rotating ring fixed connection is on the actuating lever, be equipped with a plurality of poker rods on the rotating ring, be equipped with a plurality of arc archs on the additive storehouse, be equipped with two drive cylinders on the actuating lever, equal friction drive between two drive cylinders and a plurality of arc archs, be equipped with two arc walls on the baffle, friction drive between actuating lever and the baffle.

The utility model provides a modified plastics preparation facilities is including crushing shell, the stationary knife, the axis of rotation, the rotation sword, (mixing) shaft and puddler, the equal fixed connection of a plurality of stationary knives is on crushing shell, the equal fixed connection of a plurality of rotation swoves is in the axis of rotation, the equal fixed connection of a plurality of puddlers is on the (mixing) shaft, the axis of rotation is rotated and is connected on crushing shell, crushing shell fixed connection is on the shell, the (mixing) shaft rotates and is connected on the shell, a plurality of stationary knives are the arc cutter, a plurality of rotation swoves are the arc cutter, all be equipped with sharp portion on a plurality of stationary knives, all be equipped with sharp portion on a plurality of rotation swoves, the shell outside is equipped with heating device.

The utility model provides a modified plastic preparation facilities includes the pneumatic cylinder, the separation cover, the filter screen, the telescopic link, base and waste material storehouse, be equipped with a baffle in the middle of the shell, be equipped with a valve on the baffle in the middle of the shell, pneumatic cylinder fixed connection is at the lower extreme of baffle, separation cover fixed connection is at the lower extreme of pneumatic cylinder, the upper end of separation cover is equipped with a toper top, the lower extreme of separation cover is ring shape, filter screen fixed connection is at the lower extreme of shell, the lower extreme of shell is equipped with a valve, be equipped with a cooperation groove on the filter screen, the filter screen is the toper of handstand, telescopic link fixed connection is at the lower extreme of separation cover, base fixed connection is at the lower extreme of telescopic link, waste material storehouse fixed connection is at the lower extreme of shell, the shape of base is the toper platform.

The utility model provides a modified plastic preparation facilities includes the rack, and a support, the cam, movable block and gear shaft, the equal fixed connection of two racks is at the lower extreme of separation cover, the equal fixed connection of two supports is on the filter screen, two cams fixed connection respectively are on two gear shafts, two cams respectively with two between the movable block friction drive, two movable blocks respectively sliding connection are on two supports, two movable blocks respectively with two between the support through spring coupling, two racks respectively with two gear shaft meshing transmission, two gear shafts rotate respectively to be connected on two supports, the bottom of two movable blocks all is equipped with the rubber pad.

The modified plastic comprises, by weight, 80 parts of recycled plastic, 20 parts of glass fiber, 5 parts of antimony oxide, 5 parts of phosphate, 3 parts of compatilizer and 10 parts of inorganic filler.

The modified plastic and the preparation process thereof have the beneficial effects that:

the invention relates to a modified plastic and a preparation process thereof, which improves the quality of the recycled waste plastic by recycling the waste plastic and then adding additives into the waste plastic, so that resources can be recycled and the environment can be protected, the plastic which is difficult to shear can tear two sides of the waste plastic respectively through the tip part of a rotating knife and the tip part of a fixed knife so as to improve the crushing efficiency and the crushing effect of the waste plastic, and various additives are uniformly added into the plastic raw material, so that the mixing of the plastic raw material and the additives is more uniform, the plastic raw material and the additives can be more rapidly and uniformly mixed, the quality of the modified plastic can be improved, hard matters such as sand stones and the like in the plastic can be filtered, the quality of the modified plastic can be improved, the plastic raw material stuck on impurities can be shaken off, and unnecessary waste can be avoided.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a flow chart of the operation of a process for preparing a modified plastic according to the present invention;

FIG. 2 is a schematic view of a housing of a modified plastic manufacturing apparatus according to the present invention;

FIG. 3 is a schematic view of an additive tank of a modified plastic manufacturing apparatus according to the present invention;

FIG. 4 is a schematic view of a rotating ring of a modified plastic manufacturing apparatus according to the present invention;

FIG. 5 is a schematic view of a fixed knife of the apparatus for producing modified plastics according to the present invention;

FIG. 6 is a schematic view of a rotary knife of a modified plastic manufacturing apparatus according to the present invention;

FIG. 7 is a schematic view of a stirring rod of the apparatus for producing a modified plastic according to the present invention;

FIG. 8 is a sectional view of a separation cover of a modified plastic manufacturing apparatus according to the present invention;

FIG. 9 is a cross-sectional view of a base of a modified plastic manufacturing apparatus of the present invention;

FIG. 10 is a sectional view of a filter screen of a modified plastic manufacturing apparatus of the present invention;

FIG. 11 is a schematic view of a moving block of the apparatus for producing a modified plastic according to the present invention.

In the figure:

an additive bin 110; a housing 120; a baffle 130; a rotating ring 140; a drive rod 150;

the crush can 210; a stationary knife 220; a rotating shaft 230; a rotating knife 240; a stirring shaft 250; a stirring rod 260;

a hydraulic cylinder 310; a separation hood 320; a filter screen 330; an expansion link 340; a base 350; a waste bin 360;

a rack 410; a bracket 420; a cam 430; a moving block 440; a gear shaft 450.

Detailed Description

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

As shown in fig. 1;

a preparation process of modified plastics comprises the following steps:

the method comprises the following steps: mincing waste plastics;

As shown in fig. 2, 3 and 4;

the modified plastic preparation process also uses a modified plastic preparation device, which comprises an additive bin 110 and a shell 120, the additive feeding device comprises a baffle 130, a rotating ring 140 and a driving rod 150, wherein a chamfer is arranged at the lower end of an additive bin 110, a circle of filling holes 121 are formed in a shell 120, the additive bin 110 is connected to the shell 120 in a sliding manner, a plurality of springs are arranged between the additive bin 110 and the shell 120, the baffle 130 is connected to the shell 120 in a sliding manner, the driving rod 150 is connected to the shell 120 in a rotating manner, the rotating ring 140 is fixedly connected to the driving rod 150, a plurality of poking rods 141 are arranged on the rotating ring 140, a plurality of arc-shaped bulges 111 are arranged on the additive bin 110, two driving cylinders 151 are arranged on the driving rod 150, friction transmission is realized between the two driving cylinders 151 and the arc-shaped bulges 111, two arc-shaped grooves are formed in the baffle 130, and friction transmission is realized between the driving rod 150 and the baffle 130;

the device can uniformly add various additives into the plastic raw material, so that the plastic raw material and the additives are mixed more uniformly, the plastic raw material and the additives can be mixed uniformly more quickly, the processing efficiency of the plastic of the modified plastic is improved, meanwhile, the plastic raw material and the additives are mixed uniformly enough, the quality of the modified plastic can be improved, a plurality of additives are mixed uniformly and poured into the additive bin 110, then the crushed plastic raw material is added into the shell 120, the baffle 130 is blocked by the driving rod 150 in a normal state and cannot move upwards, the baffle 130 at the lower end blocks the filling hole 121, so that the additives are all in the additive bin 110, the crushed plastic raw material is gradually added into the shell 120 along with the rotation of the driving rod 150, the driving rod 150 is positioned at the two arc grooves of the baffle 130 after rotating for half a circle, and at the moment, the driving rod 150 loses the blocking of the baffle 130, the elastic force of the spring on the baffle 130 drives the baffle 130 to move upwards, the baffle 130 moves upwards to lose the blocking of the filling hole 121, at the moment, the additive in the additive bin 110 flows out through the filling hole 121, then the driving rod 150 continues to rotate and drives the baffle 130 to move downwards through friction transmission, the baffle 130 moves downwards to block the filling hole 121 again, the additive is added into the crushed aggregates at one time, and the adding is repeated for a plurality of times, so that the additive can be gradually added into the plastic raw materials in batches in an equivalent manner, the plastic raw materials and the additive which are not stirred are uniformly mixed, the difficulty and time of stirring can be greatly reduced, and the quality of modified plastics is improved;

furthermore, the two arc-shaped grooves on the baffle 130 and the contact between the arc-shaped grooves and the driving rod 150 are smoother, so that the baffle 130 can better match with the driving rod 150 to move up and down, meanwhile, the abrasion between the baffle 130 and the driving rod 150 is reduced, and the service lives of the baffle 130 and the driving rod 150 are prolonged;

furthermore, in order to prevent some additives from blocking the filler holes 121 and further influencing the outflow of subsequent additives and influencing the mixing condition of the additives and plastics, the quality of the modified plastics is influenced due to different uniformity degrees, the strength of the modified plastics is influenced due to the change of the proportion of the additives and the plastic raw materials, and unnecessary loss is caused, the driving rod 150 rotates to drive the rotating ring 140 to rotate, the rotating ring 140 rotates to drive the plurality of poking rods 141 to rotate, the plurality of poking rods 141 rotate along with the filler holes 121, the filler holes 121 can be prevented from being blocked, and all the additives can be normally added into the plastic raw materials;

further, the additive of additive storehouse 110 bottom can flow through filled hole 121 gradually, the additive of top can not the downstream by the card owner appear easily, it is different to lead to the quality of adding the additive in the back to the plastic materials, thereby reduce the even degree that plastic materials and additive mix, rotate through actuating lever 150 and drive two drive cylinders 151 and rotate, two drive cylinders 151 rotate and the protruding 111 contacts of a plurality of arcs on the additive storehouse 110, thereby it reciprocates to drive additive storehouse 110, let additive storehouse 110 produce vibrations, make the additive in the additive storehouse 110 all by the lower extreme that can move downwards all the time and be located additive storehouse 110.

As shown in fig. 5, 6 and 7;

a modified plastic preparation device comprises a crushing shell 210, fixed cutters 220, a rotating shaft 230, rotating cutters 240, a stirring shaft 250 and stirring rods 260, wherein the fixed cutters 220 are fixedly connected to the crushing shell 210, the rotating cutters 240 are fixedly connected to the rotating shaft 230, the stirring rods 260 are fixedly connected to the stirring shaft 250, the rotating shaft 230 is rotatably connected to the crushing shell 210, the crushing shell 210 is fixedly connected to a shell 120, the stirring shaft 250 is rotatably connected to the shell 120, the fixed cutters 220 are arc-shaped cutters, the rotating cutters 240 are arc-shaped cutters, tip parts are arranged on the fixed cutters 220, tip parts are arranged on the rotating cutters 240, and a heating device is arranged outside the shell 120;

the rotating shaft 230 is driven by external power, the external power is a speed reduction motor, the speed reduction motor is fixedly connected to the crushing shell 210, and the rotating shaft 230 is fixedly connected to an output shaft of the speed reduction motor; ,

the stirring shaft 250 is driven by external power, the external power is a speed reducing motor, the speed reducing motor is fixedly connected to the shell 120, and the stirring shaft 250 is fixedly connected to an output shaft of the speed reducing motor;

the device recycles the waste plastics, then adds additives into the waste plastics, improves the quality of the recycled waste plastics, enables resources to be recycled, protects the environment and brings higher income, the waste plastics are placed into the shell 120, the rotating blades 240 are driven to rotate through the rotation of the rotating shaft 230, the rotating blades 240 rotate to be in contact with the fixed blades 220, the waste plastics are ground by the effect of scissors, the ground waste plastics are heated more uniformly and are heated and melted more easily to be formed secondarily, meanwhile, the ground waste plastics can be better mixed with the additives, meanwhile, some plastics which are difficult to be ground can respectively pull the two sides of the waste plastics through the tip parts of the rotating blades 240 and the tip parts of the fixed blades 220, thereby tearing the waste plastics apart, improving the grinding efficiency and the grinding effect of the waste plastics, and the waste plastics can be ground more fully, the waste plastic can be melted more conveniently, and meanwhile, the phenomenon that large waste plastic is wound on the rotating shaft 230 and is difficult to process is avoided;

furthermore, the rotation of the rotating shaft 230 drives the driving rod 150 to rotate, so that the rate of the crushed waste plastics entering the shell 120 is proportional to the rate of the additives entering the shell 120, the waste plastics and the additives are mixed more uniformly, and meanwhile, the adding process of the waste plastics and the additives is stable and ordered, and the work is smoother;

further, after waste plastic and additive are all added into shell 120, the two are all melted by high temperature and form liquid state, at this moment (mixing) shaft 250 rotates and drives a plurality of puddlers 260 and rotate, further carry out the homogeneous mixing with waste plastic and additive through puddler 260 rotation, enable simultaneously that waste plastic is heated more fully that melts, avoid having the quality that melts insufficient condition influence modified plastics.

As shown in fig. 8 and 9;

a modified plastic preparation device comprises a hydraulic cylinder 310, a separation cover 320, a filter screen 330, an expansion link 340, a base 350 and a waste bin 360, wherein a partition plate is arranged in the middle of a shell 120, a valve is arranged on the partition plate in the middle of the shell 120, the hydraulic cylinder 310 is fixedly connected to the lower end of the partition plate, the separation cover 320 is fixedly connected to the lower end of the hydraulic cylinder 310, a conical top is arranged at the upper end of the separation cover 320, the lower end of the separation cover 320 is in a circular ring shape, the filter screen 330 is fixedly connected to the lower end of the shell 120, a valve is arranged at the lower end of the shell 120, a matching groove is arranged on the filter screen 330, the filter screen 330 is in an inverted conical shape, the expansion link 340 is fixedly connected to the lower end of the expansion link 350, the waste bin 360 is fixedly connected to the lower end of the shell 120, and the base 350 is in a conical table shape;

the plastic which is melted sufficiently enters the bottom of the shell 120 through the valve in the middle section of the shell 120, the waste plastic is clean enough and difficult to process, meanwhile, when the waste plastic is added into the shell 120, various impurities are easy to mix, which can affect the quality of the processed modified plastic, the melted plastic is filtered, hard matters such as sand and stone in the plastic are filtered, the quality of the modified plastic can be improved, the melted plastic falls on the filter screen 330, the impurities such as sand and stone can not be blocked by the filter screen 330, the plastic without impurities is collected by the filter screen 330, after all plastic raw materials are filtered, the hydraulic cylinder 310 is shortened to drive the separation cover 320 to move upwards, the separation cover 320 moves upwards to drive the telescopic rod 340 to move upwards, the telescopic rod 340 moves upwards to drive the base 350 to move upwards, and the separation cover 320 moves upwards to enable all impurities to slide downwards along the filter screen 330, with all impurity arrangements together concentrate on base 350, at this moment, 320 downshifts of separation cover drive base 350 downshifts, all impurity all can be along with base 350 downshifts enter into in the waste bin 360, because at this moment the high difficult staff that is handled of impurity temperature, through letting all impurity at the 360 internal cooling of waste bin, when waiting to reach the temperature and can not causing the injury to the staff, drive base 350 downshifts through the extension of telescopic link 340, base 350 downshifts and drives waste bin 360, make the whole flows of impurity in the waste bin 360 collect and handle, base 350's shape makes for the toper platform can not have impurity to stop on base 350, be convenient for handle impurity.

As shown in fig. 10 and 11;

a modified plastic preparation device comprises racks 410, brackets 420, cams 430, moving blocks 440 and gear shafts 450, wherein the two racks 410 are fixedly connected to the lower end of a separation cover 320, the two brackets 420 are fixedly connected to a filter screen 330, the two cams 430 are respectively and fixedly connected to two gear shafts 450, the two cams 430 are respectively in friction transmission with the two moving blocks 440, the two moving blocks 440 are respectively in sliding connection with the two brackets 420, the two moving blocks 440 are respectively in spring connection with the two brackets 420, the two racks 410 are respectively in meshing transmission with the two gear shafts 450, the two gear shafts 450 are respectively and rotatably connected to the two brackets 420, and rubber pads are arranged at the bottom ends of the two moving blocks 440;

after the impurities are filtered, certain plastic raw materials can be adhered to the impurities, the two racks 410 are driven to move through the movement of the separation cover 320, the two racks 410 move to drive the two gear shafts 450 to rotate, the two gear shafts 450 rotate to drive the two cams 430 to rotate, the two cams 430 rotate to drive the two poking rods 141 to move downwards, then the two cams 430 rotate to lose contact with the two poking rods 141, the two poking rods 141 move upwards through spring elasticity to complete resetting, the two poking rods 141 can continuously move upwards and downwards to hit the filter screen 330, the filter screen 330 vibrates, the plastic raw materials on the impurities are shaken off, the plastic raw materials are collected more fully, and unnecessary waste is avoided.

Claims

1. A preparation process of modified plastics is characterized by comprising the following steps: the process comprises the following steps:

the method comprises the following steps: mincing waste plastics;

2. The process for preparing a modified plastic according to claim 1, wherein: the process also uses a modified plastic preparation device, which comprises an additive bin (110), a shell (120), a baffle plate (130) and a driving rod (150), and is characterized in that: the additive bin (110) slides on the shell (120), the baffle (130) slides on the shell (120), a circle of filling holes (121) are formed in the shell (120), the driving rod (150) rotates on the shell (120), and two arc-shaped grooves are formed in the baffle (130).

3. The process for preparing a modified plastic according to claim 2, wherein: be equipped with a plurality of arc archs (111) on additive storehouse (110), be equipped with two drive cylinder (151) on actuating lever (150), two drive cylinder (151) and a plurality of arc archs (111) equal friction drive are equipped with the spring between additive storehouse (110) and shell (120).

4. The process for preparing a modified plastic according to claim 3, wherein: the device also comprises a rotating ring (140), a plurality of poking rods (141) are arranged on the rotating ring (140), and the rotating ring (140) is fixed on the driving rod (150).

5. The process for preparing a modified plastic according to claim 4, wherein: the device also comprises a crushing shell (210), fixed knives (220), a rotating shaft (230) and rotating knives (240), wherein the fixed knives (220) are fixed on the crushing shell (210), the rotating shaft (230) rotates on the crushing shell (210), and the rotating knives (240) are fixed on the rotating shaft (230).

6. The process for preparing modified plastics according to claim 5, wherein: the plurality of fixed knives (220) and the rotating knives (240) are arc-shaped, and the plurality of fixed knives (220) and the rotating knives (240) are provided with tip parts.

7. The process for preparing a modified plastic according to claim 6, wherein; the device also comprises a stirring shaft (250) and a plurality of stirring rods (260), wherein the stirring rods (260) are all fixed on the stirring shaft (250), and the stirring shaft (250) rotates on the shell (120).

8. The process for preparing a modified plastic according to claim 7, wherein: the device also comprises a separation cover (320) and a filter screen (330), wherein the separation cover (320) is provided with a conical top, the filter screen (330) is in an inverted cone shape, and the separation cover (320) can cover the filter screen (330).

9. The process for preparing a modified plastic according to claim 8, wherein: the device further comprises a support (420), a cam (430) and a moving block (440), wherein the cam (430) rotates on the support (420), the moving block (440) slides on the support (420), and the cam (430) and the moving block (440) are in friction transmission.

10. The modified plastic prepared by the modified plastic preparation process according to claim 9, wherein: the raw materials of the modified plastic comprise, by weight, 80 parts of recycled plastic, 20 parts of glass fiber, 5 parts of antimony oxide, 5 parts of phosphate, 3 parts of compatilizer and 10 parts of inorganic filler.