CN113524554A

CN113524554A - Preparation process of fiber reinforced foam plastic

Info

Publication number: CN113524554A
Application number: CN202110893471.XA
Authority: CN
Inventors: 刘瑞懂
Original assignee: Chuzhou Anja Environmental Protection Technology Co ltd
Current assignee: Chuzhou Anja Environmental Protection Technology Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2021-10-22

Abstract

The invention discloses a preparation process of fiber reinforced foam plastic, which adopts a preparation device for preparation, wherein the preparation device comprises a preparation box, and the top of the preparation box is provided with a raw material inlet and a short fiber particle inlet. This foamed plastic preparation technology adopts and is equipped with air purification equipment on the preparation facilities, introduce the interior remaining peculiar smell gas of box to carry out purification treatment in the rose box, through three kinds of filtration methods, effectually purify peculiar smell gas, environmental protection more, the foamed plastic after the foaming shaping adopts the mode that promotes the unloading simultaneously, the speed of unloading has been improved, the automation of unloading has been realized, this foamed plastic preparation technology adopts and is equipped with cooling device on the preparation facilities, the mode that the heat transfer is passed through to the water that flows, the effectual cooling rate that has improved, whole preparation process has been shortened.

Description

Preparation process of fiber reinforced foam plastic

Technical Field

The invention relates to the technical field of foam plastic preparation, in particular to a preparation process of fiber reinforced foam plastic.

Background

The foamed plastic is a polymer material which takes plastic as a basic component and contains a large number of bubbles, belongs to composite plastic taking gas as a filling material, and has a plurality of excellent properties such as light weight, high specific strength, good impact load absorption, good heat insulation and sound insulation properties and the like compared with pure plastic, thereby being widely applied to the fields of industry, agriculture, buildings, transportation and the like.

The prior foam plastic manufacturing is mainly divided into two modes, one mode is solution foaming molding, the other mode is crystal foaming molding, solution foaming is carried out by putting a plastic solution and related auxiliary materials into a foaming groove or a foaming box together for fusion, steam is introduced for foaming molding, and then cooling and discharging are carried out, the modes need manual cooperation for discharging, the process is complicated, meanwhile, in the process of mixing raw materials and the auxiliary materials, odor generated by the plastic solution and the auxiliary materials can be directly diffused into the air to pollute the surrounding environment, crystal foaming is carried out, plastic crystals and the auxiliary materials are put into a foaming mold together, after the mold body is sealed, steam is introduced for foaming molding, cooling and discharging are carried out, in the mode, because of sealed foaming, heat can be discharged through an air outlet of the mold, because the position of the air outlet is limited, the caliber size is limited, the cooling speed is slow, the efficiency is low, and the preparation process is prolonged, therefore, here we propose a process for the preparation of fibre reinforced foams.

Disclosure of Invention

The invention provides a preparation process of fiber reinforced foamed plastic aiming at the defects in the background technology, and effectively solves the problems of high air pollution rate in the traditional plastic solution foaming and forming process and low cooling efficiency in the plastic crystal foaming and forming process.

The invention adopts a modified technical scheme to solve the technical defects, the fiber reinforced foamed plastic preparation process adopts a preparation device to prepare, the preparation device comprises a preparation box, the top of the preparation box is provided with a raw material inlet and a short fiber particle inlet, the bottom of the preparation box is provided with a water tank, the preparation box is provided with an exhaust box, a control panel, a first motor, a second motor, a hydraulic push rod, a steam inlet, a pressure gauge and a closing cover, the preparation box is internally provided with a stirring tank, a pressure plate assembly and a foaming tank, the inner wall of the preparation box is provided with an exhaust port, the stirring tank is communicated with the raw material inlet and the short fiber particle inlet, the stirring tank is internally provided with a stirring blade, the stirring blade is connected with the transmission end of the first motor, the bottom of the stirring tank is provided with a base, the side end of the stirring tank is provided with a third motor, the base and the stirring tank are integrated, the base is provided with a sealing cover, the sealing cover is connected with a transmission end of the third motor, the pressing plate assembly comprises a rotating plate and a limiting plate, a spring is arranged between the rotating plate and the limiting plate, the rotating plate and the limiting plate are connected through the spring, one end of the rotating plate is connected on the inner wall of the preparation box through a rotating screw, the other end of the rotating plate is connected with the transmission end of the second motor, the foaming tank is communicated with a steam inlet, the side wall of the foaming tank is provided with a water inlet, a water outlet and a push plate placing tank, a push plate is embedded in the push plate placing tank, the inner wall of the push plate placing tank is provided with a through hole, the hydraulic push rod is fixed on the outer wall of the preparation box through a screw, and the telescopic end of the hydraulic push rod penetrates through the through hole and is locked and fixed with the push plate through the screw, the water body circulation grooves are distributed in the side wall of the foaming groove, two ends of each water body circulation groove are respectively communicated with the water inlet and the water outlet, the water tank is provided with a water filling port, a water discharging port and a water temperature meter, one side of the water tank is provided with a water discharging pipe, the other side of the water tank is provided with a transmission box, one end of the water discharging pipe is hermetically communicated with the inside of the water tank, the other end of the water discharging pipe is hermetically communicated with the water outlet, the transmission box is internally provided with a water pump, the transmission box is provided with a water inlet pipe, one end of the water inlet pipe is hermetically communicated with the water inlet, the other end of the water inlet pipe is hermetically communicated with the water outlet of the water pump, the outside of the air discharging box is provided with an air discharging cover, the inside of the air discharging box is provided with a fan and a filter box, two ends of the filter box are provided with conical connection ports, the air discharging port of the fan is hermetically communicated with the conical connection ports at one end of the filter box through the sealing cover, the air inlet pipe is connected to the conical connection port at the other end of the filter box and is communicated with the air outlet in a sealing mode through a sealing cover, and a separation net is arranged on the air outlet.

As a further preferable mode of the present invention, the preparation tank and the stirring tank are both made of stainless steel, the stirring tank and the preparation tank are welded and fixed, the bottom of the stirring tank is of an arc structure, the third motor is fixed to the side end of the stirring tank through a screw, the stirring blades inside the stirring tank are of a four-blade structure, and the stirring blades are provided with leaking holes.

As a further preferable mode of the invention, the rotating plate and the limiting plate are both made of ceramic materials, the rotating plate and the limiting plate have the same size, and springs distributed between the rotating plate and the limiting plate are respectively locked and fixed with the rotating plate and the limiting plate through screws.

In a further preferred embodiment of the present invention, the push plate is a stainless steel plate, the push plate and the push plate placement groove are matched in size, and a rubber gasket is bonded to a fitting surface of the push plate and the push plate placement groove.

As a further preferable mode of the present invention, the steam inlet, the water filling port, the water discharging pipe and the water inlet pipe are all provided with control valves, and the control valves are electronic valves.

As a further preferable mode of the invention, the top of the filter box is provided with an installation cover, a sponge net, a filter chip and an activated carbon net are arranged inside the filter box, and the sponge net, the filter chip and the activated carbon net are all fixed on the inner wall of the filter box through screws;

the preparation process of the foam plastic comprises the following steps:

s1, adding raw materials: introducing plastic solution polystyrene, polyvinyl chloride or polyurethane into the stirring tank from a raw material inlet at the top of the preparation tank;

s2, adding ingredients: short fiber particles are introduced into the stirring tank from a short fiber particle inlet at the top of the preparation tank, and the mixing ratio of the short fiber particles to the plastic solution is 1: 3;

s3, stirring and mixing: the corresponding cover bodies are embedded on the raw material inlet and the short fiber particle inlet, the first motor is started through the control panel, the first motor drives the stirring blade in the stirring tank to rotate, and the plastic solution and the short fiber particles are uniformly mixed through the stirring blade;

s4, discharging the solution: after the plastic solution is mixed, a second motor is started through a control panel, the second motor drives a pressure plate assembly to rotate, the maximum rotation angle of the pressure plate assembly is 40 degrees, then a third motor at the side end of the stirring tank is started through the control panel, the third motor drives a sealing cover on the base to rotate, the mixed plastic solution is introduced into the foaming tank through the pressure plate assembly, and after the introduction is completed, the pressure plate assembly is driven to reset through the third motor;

s5, air purification: an inner fan of the exhaust box is started through a control panel, air enters from a raw material inlet and a short fiber particle inlet and enters into the filter box through an exhaust port, and then sequentially passes through the activated carbon net, the filter chip and the sponge net, so that the residual peculiar smell air in the stirring tank is evolved and exhausted to the outside through the exhaust hood;

s6, foaming and molding: introducing steam through a steam inlet, and foaming the mixed plastic solution under the action of high-temperature steam;

s7, cooling and discharging: after the foaming molding, start the water pump of transmission case through control panel, the water pump passes through inside the inlet tube introduces the water in the water tank to the lateral wall in foaming groove, and transmit through many water circulation grooves, the heat in foaming groove can be absorbed to the water that flows, the water rethread drain pipe after the heat absorption flows in the water tank, thereby reach the refrigerated purpose of heat absorption, when the temperature in the water tank surpasses 35 ℃, trade water through water filling port and the mouth that drains on the water tank, whole cooling time is 15-20min, after the foaming is accomplished, open the closing lid, drive the push pedal through hydraulic pressure catch bar, the push pedal is released the foaming molded's foamed plastic, realize unloading.

The invention has the following beneficial effects:

1. be equipped with air purification equipment on the preparation facilities that this foamed plastic preparation technology adopted, after mixing the end and unloading, fan through the exhaust box can drive the air flow of preparation incasement, introduce remaining peculiar smell gas in the box and carry out purification treatment to the rose box in, filter through moisture content, impurity filtering and peculiar smell are handled, three kinds of filtration methods, effectually purify peculiar smell gas, make the combustion gas can not cause the pollution to external air, environmental protection more, the foamed plastic after the foaming shaping adopts the mode that promotes the unloading simultaneously, the speed of unloading has been improved, the automation of unloading has been realized, manual work participation has been avoided and the loaded down with trivial details problem of flow has been caused.

2. The preparation device that this foamed plastic preparation technology adopted is equipped with cooling arrangement on, after the foaming, drives water through the water pump and flows in the inside water circulation groove of foaming groove lateral wall, absorbs the heat of foaming groove lateral wall, shifts the heat through the mode of heat transfer, in sealed environment, can effectually improve cooling rate, has shortened whole foamed plastic's preparation process.

Drawings

FIG. 1 is a schematic view of a process for preparing a foam of the present invention;

FIG. 2 is a schematic view of the overall appearance structure of the preparation tank of the present invention;

FIG. 3 is a schematic view of the internal structure of the preparation tank of the present invention;

FIG. 4 is a schematic view of the internal structure of the agitation tank of the present invention;

FIG. 5 is a schematic view of the platen assembly of the present invention;

FIG. 6 is a schematic view of the structure of a foaming tank according to the present invention;

FIG. 7 is a schematic view of a transmission box according to the present invention;

FIG. 8 is a schematic view of the exhaust box of the present invention;

fig. 9 is a schematic structural view of the filter box of the present invention.

In the figure, 1-a preparation box, 2-a raw material inlet, 3-a short fiber particle inlet, 4-an exhaust box, 5-a control panel, 6-a first motor, 7-a second motor, 8-a hydraulic push rod, 9-a steam inlet, 10-a pressure gauge, 11-a closed cover, 12-a water tank, 13-a water inlet, 14-a water outlet, 15-a water outlet, 16-a transmission box, 17-a water temperature gauge, 18-a stirring tank, 19-an exhaust port, 20-a pressure plate component, 21-a foaming tank, 22-a push plate, 23-a base, 24-a sealing cover, 25-a stirring blade, 26-a third motor, 27-a rotating plate, 28-a limiting plate, 29-a spring, 30-a water inlet and 31-a water body circulation tank, 32-water outlet, 33-water pump, 34-water inlet pipe, 35-fan, 36-filter box, 37-exhaust hood, 38-partition net, 39-sponge net, 40-filter chip and 41-active carbon net.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.

Example 1

The invention provides a technical scheme that: a preparation process of fiber reinforced foamed plastic adopts a preparation device to prepare, the preparation device comprises a preparation box 1, the top of the preparation box 1 is provided with a raw material inlet 2 and a short fiber particle inlet 3, the bottom of the preparation box 1 is provided with a water tank 12, the preparation box 1 is provided with an exhaust box 4, a control panel 5, a first motor 6, a second motor 7, a hydraulic push rod 8, a steam inlet 9, a pressure gauge 10 and a closed cover 11, the preparation box 1 is internally provided with a stirring tank 18, a pressure plate assembly 20 and a foaming tank 21, the inner wall of the preparation box 1 is provided with an exhaust port 19, the stirring tank 18 is communicated with the raw material inlet 2 and the short fiber particle inlet 3, the stirring tank 18 is internally provided with a stirring blade 25, the stirring blade 25 is connected with the transmission end of the first motor 6, the bottom of the stirring tank 18 is provided with a base 23, the side of stirred tank 18 is equipped with third motor 26, base 23 and stirred tank 18 integral structure, be equipped with sealed lid 24 on the base 23, sealed lid 24 is connected with the transmission end of third motor 26, clamp plate subassembly 20 includes rotor plate 27 and limiting plate 28, be equipped with spring 29 between rotor plate 27 and the limiting plate 28, rotor plate 27 and limiting plate 28 pass through spring 29 and connect, rotor plate 27 one end is passed through the rotation screw and is linked up on the inner wall of preparation case 1, and the other end is connected with the transmission end of second motor 7, foaming groove 21 communicates with steam inlet 9, be equipped with water inlet 30, delivery port 32 and push pedal standing groove on the lateral wall of foaming groove 21, the gomphosis has push pedal 22 in the push pedal standing groove, be equipped with the through-hole on the inner wall of push pedal standing groove, hydraulic pushing rod 8 passes through the screw fixation on the outer wall of preparation case 1, the telescopic end of the hydraulic push rod 8 penetrates through the through hole and is locked and fixed with the push plate 22 through a screw, a water body circulation groove 31 is distributed inside the side wall of the foaming groove 21, two ends of the water body circulation groove 31 are respectively communicated with a water inlet 30 and a water outlet 32, a water filling port 13, a water discharging port 14 and a water temperature meter 17 are arranged on the water tank 12, a water discharging pipe 15 is arranged on one side of the water tank 12, a transmission box 16 is arranged on the other side of the water tank 12, one end of the water discharging pipe 15 is communicated with the inside of the water tank 12 in a sealing manner, the other end of the water discharging pipe is communicated with the water outlet 32 in a sealing manner, a water pump 33 is arranged inside the transmission box 16, a water inlet pipe 34 is arranged on the transmission box 16, one end of the water inlet pipe 34 is communicated with the water inlet 30 in a sealing manner, the other end of the water outlet of the water pump 33 is communicated with the inside of the water tank 12, an exhaust hood 37 is arranged outside the exhaust box 4, a fan 35 and a filter box 36 are arranged inside the exhaust box 4, the plastic preparation device mainly adopts a solution mixing → foaming forming mode, and adds air purification and accelerated cooling processes in the stirring mixing and foaming forming processes, the air purification can remove residual air with plastic peculiar smell in the stirring tank, so as to avoid directly discharging to the outside, avoid polluting the environment, accelerate cooling, and achieve the effect of rapid cooling by rapidly taking away heat in the foaming tank, the whole process of preparing the foam plastic is shortened, and the preparation efficiency is improved.

As a further preferable mode of the present invention, the preparation tank 1 and the stirring tank 18 are both made of stainless steel, the stirring tank 18 and the preparation tank 1 are welded and fixed, the bottom of the stirring tank 18 is of an arc structure, the third motor 26 is fixed at the side end of the stirring tank 18 through screws, the stirring blade 25 inside the stirring tank 18 is of a four-blade structure, the stirring blade 25 is distributed with leaking holes, the bottom of the stirring tank 18 is of an arc structure, edges and corners are avoided, the structure correspondence is realized by matching with the stirring blade 25, meanwhile, the stirring blade 25 with leaking holes enables the solution to pass through, the effect of flowing and passing through of the solution is achieved, the stirring is more uniform and sufficient, the third motor 26 mainly realizes opening and closing of the sealing cover 24 on the base 23, the discharging of the stirred solution is realized, and the model of the third motor 26 is YS 6314.

In a further preferred embodiment of the present invention, the rotating plate 27 and the stopper plate 28 are made of ceramic material, the rotating plate 27 and the limiting plate 28 have the same size, the springs 29 distributed between the rotating plate 27 and the limiting plate 28 are respectively locked and fixed with the rotating plate 27 and the limiting plate 28 through screws, the whole pressing plate assembly 20 plays a role in guiding the mixed plastic solution, meanwhile, the stirring area and the foaming area are separated, the rotating plate 27 is mainly used for connecting the limiting plate 28, the limiting plate 28 can stretch under the action of the spring 29, in the case of foam-forming foams, which are subject to volume expansion, the elastic limiting plates 28, the volume of the foaming groove 21 is adjusted, so that foaming molding of foamed plastic is facilitated, the plate body made of ceramic materials is not heat-conducting, the heat transfer condition is avoided, and the consistency of the plate body structures is ensured by the plate bodies with the same size.

As a further preferable mode of the present invention, the push plate 22 is a stainless steel plate body, the size of the push plate 22 is matched with that of the push plate placement groove, a rubber gasket is bonded on a tabling surface of the push plate 22 and the push plate placement groove, the push plate 22 is accommodated in the push plate placement groove, so that an integrated structure of the push plate 22 and an inner wall of the foaming groove 21 is realized, thereby avoiding an influence on foaming of the foamed plastic, the push plate 22 mainly realizes a material pushing effect, the foamed plastic after foaming molding is pushed out of the preparation box 1, thereby realizing automatic discharging, and the rubber gasket on the tabling surface of the push plate 22 ensures the sealing property between the plate body and the push plate placement groove after the push plate is accommodated, thereby avoiding a situation that a mixed plastic solution overflows from a telescopic gap of the hydraulic push rod 8, the hydraulic push rod 8 is an electronic hydraulic device, and a large push rod with model number of dyt (b) is adopted.

As a further preferable mode of the present invention, the steam inlet 9, the water filling port 13, the water discharging port 14, the water discharging pipe 15, and the water inlet pipe 34 are all provided with control valves, the control valves are electronic valves, the control valves mainly control the circulation of gas and liquid, the electronic valves can realize the automatic control of the equipment, so that the valve response speed is high, the accuracy of the circulation of gas and liquid is ensured, and the model number adopted by the electronic valves is Q22 HD-15/20.

As a further preferable mode of the present invention, the top of the filter box 36 is provided with an installation cover, the filter box 36 is internally provided with a sponge net 39, a filter element sheet 40 and an activated carbon net 41, the sponge net 39, the filter element sheet 40 and the activated carbon net 41 are all fixed on the inner wall of the filter box 36 through screws, the installation cover on the top of the filter box 36 facilitates replacement of the filter assembly, the sponge net 39 can filter moisture in the air, the filter element sheet 40 can filter impurity particles in the air, and the activated carbon net 41 can adsorb odor molecules in the air, so that purification of the air is effectively achieved through three filtering effects, so that the discharged air is purer, and an environment-friendly effect is achieved.

The preparation process of the foam plastic comprises the following steps:

s1, adding raw materials: plastic solution (polystyrene, polyvinyl chloride or polyurethane) is introduced into the stirring tank 18 from a raw material inlet 2 at the top of the preparation box 1, the polystyrene, the polyvinyl chloride or the polyurethane can be used as raw materials for preparing foam plastics, and a funnel can be placed on the raw material inlet 2 during material injection according to actual conditions to avoid splashing;

s2, adding ingredients: short fiber particles are introduced into the stirring tank 18 from a short fiber particle inlet 3 at the top of the preparation box 1, and the mixing ratio of the short fiber particles to the plastic solution is 1: 3, the short fiber particles play a role in reinforcing, strengthening and improving heat resistance of the foam plastic, and the blending ratio can also be 1: 2, the blending proportion is determined according to the application of the foam plastic, and a funnel is also needed to be added when the short fiber particles are introduced;

s3, stirring and mixing: the raw material inlet 2 and the short fiber particle inlet 3 are embedded with corresponding cover bodies, the control panel 5 is used for starting the first motor 6, the first motor 6 drives the stirring blade 25 in the stirring tank 18 to rotate, the stirring blade 25 is used for uniformly mixing the plastic solution and the short fiber particles, the first motor 6 is mainly used as a power source for rotating the stirring blade 25, the first motor 6 can drive the stirring blade 25 to rotate to realize stirring and mixing, the cover bodies on the raw material inlet 2 and the short fiber particle inlet 3 are used for avoiding peculiar smell gas from being dispersed in the outside air to pollute the environment in the stirring process, and the model of the first motor 6 is YS 7124;

s4, discharging the solution: after the plastic solution is mixed, the second motor 7 is started through the control panel 5, the second motor 7 drives the pressing plate assembly 20 to rotate, the maximum rotation angle of the pressing plate assembly 20 is 40 degrees, then the third motor 26 at the side end of the stirring tank 18 is started through the control panel 5, the third motor 26 drives the sealing cover 24 on the base 23 to rotate, the mixed plastic solution is introduced into the foaming tank 21 through the pressing plate assembly 20, after the introduction is completed, the pressing plate assembly 20 is driven to reset through the third motor 26, the solution is discharged and mainly drives the pressing plate assembly 20 to rotate through the second motor 7, so that the whole pressing plate assembly 20 is in an inclined state, the mixed plastic solution is conveniently introduced into the foaming tank, after the pressing plate assembly 20 is inclined, the third motor 26 drives the sealing cover 24 to rotate to realize discharging, the discharged solution is introduced into the foaming tank 21 through the inclined pressing assembly 20, the model number adopted by the second motor 7 is YE2-132S when foaming is to be carried out;

s5, air purification: the inner fan 35 of the exhaust box 4 is started through the control panel 5, air enters from the raw material inlet 2 and the short fiber particle inlet 3 and enters the filter box 36 through the exhaust port 19, and sequentially passes through the activated carbon net 41, the filter element 40 and the sponge net 39, so that the odor air remained in the stirring tank 18 is evolved and exhausted to the outside through the exhaust hood 37, and because the plastic odor gas can be diffused in the whole preparation box 1 in the unloading process, when the corresponding cover bodies on the raw material inlet 2 and the short fiber particle inlet 3 are opened for the next round of preparation, the odor gas can be exhausted to the outside through the raw material inlet 2 and the short fiber particle inlet 3 to affect the surrounding environment, therefore, the air purification mainly comprises the steps of driving the air in the preparation box 1 to flow through the fan 35 and filtering in three different degrees to purify the plastic odor gas, the fan is more environment-friendly, the model of the fan is MS405-200, and meanwhile, when the sponge net 39, the filter element sheet 40 and the activated carbon net 41 need to be replaced, the installation cover at the top of the filter box 36 is only needed to be opened, and the screw is removed to replace the filter box;

s6, foaming and molding: steam is introduced through the steam inlet 9, the mixed plastic solution can be foamed under the action of high-temperature steam, the foaming time is determined according to the amount of the mixed solution, the mixed plastic solution in the foaming groove 21 is effectively foamed under the high-temperature and high-pressure of the steam, so that the plastic solution and the fibers are fused to form composite foamed plastic, the characteristics of the foamed plastic are enhanced, and in the foaming process, pressure data in the foaming groove 21 can be known according to a pressure gauge, so that the steam intake is adjusted;

s7, cooling and discharging: after foaming and forming, the water pump 33 of the transmission box 16 is started through the control panel 5, the water pump 33 introduces the water in the water tank 12 into the side wall of the foaming tank 21 through the water inlet pipe 34, and the water is transmitted through the water circulation grooves 31, the flowing water absorbs the heat of the foaming tank 21, the water after heat absorption flows into the water tank 12 through the water outlet pipe 15, so as to achieve the purpose of heat absorption and cooling, when the water temperature in the water tank 12 exceeds 35 ℃, the water is changed through the water filling port 13 and the water discharge port 14 on the water tank 12, the whole cooling time is 15-20min, after foaming is completed, the closing cover 11 is opened, the push plate 22 is driven by the hydraulic push rod 8, the push plate 22 pushes out the foam plastic for foaming and forming to realize discharging, after foaming and forming, because the temperature in the foaming tank 21 is higher, cooling needs to be performed, the water in the water tank 12 is introduced into the water circulation grooves 31 inside the side wall of the foaming tank 21 through the water pump 33, absorb the temperature of foaming groove 21 lateral wall through flowing water to reach the effect of cooling, through the water-cooled mode that flows, under sealed environment, can accelerate cooling efficiency, reduced latency, shortened the process of whole preparation, after the cooling, adopt the promotion mode, realize the unloading, it is fast, efficient, the model that the water pump adopted is BW 8-2.

In conclusion, through the design of the air purification assembly, the environment pollution caused by the peculiar smell gas can be greatly reduced in the whole foam plastic preparation process, the environment is more environment-friendly, meanwhile, through the design of the cooling assembly, the cooling of the foam plastic formed by foaming can be accelerated, the cooling efficiency is improved, and the foam plastic preparation process is shortened.

Example 2

The preparation process of the foam plastic through crystal foaming comprises the following steps:

s1, adding raw materials: uniformly placing a certain amount of plastic crystal particles in a foaming mold;

s2, adding auxiliary materials; according to the ratio of the plastic crystal particles to the short fiber particles 3: 1, placing short fiber particles in a foaming mold;

s3, stirring and mixing: stirring the plastic crystal particles and the short fiber particles by manual or related stirring devices to uniformly distribute the plastic crystal particles and the short fiber particles;

s4, foaming and molding: introducing a proper amount of steam into the foaming mold through a steam pipe, foaming the plastic crystal particles under the conditions of high temperature and high pressure, and simultaneously realizing the fusion of the plastic crystal particles and the short fiber particles;

s5, cooling: closing a control valve on the steam pipe, opening a control valve of an air outlet pipe on the foaming mold, and discharging heat in the mold through the air outlet pipe to realize cooling for 30-45 min;

s6, demolding: and (3) separating the top die from the bottom die by starting the hydraulic device, and ejecting the foamed plastic after foaming out of the die to realize discharging.

Example 3

The preparation process of the traditional foam plastic through liquid foaming is as follows:

s1, adding raw materials: introducing a quantity of plastic solution into the associated mixing device;

s2, adding auxiliary materials; according to the ratio of the plastic solution to the short fiber particles 4: 1, short fiber particles are placed in a mixing device;

s4, foaming and molding: introducing the mixed solution into a foaming box, closing the box cover, introducing a proper amount of steam into a foaming mould through a steam pipe, foaming the plastic crystal particles under the conditions of high temperature and high pressure, and foaming and forming to obtain composite foamed plastic;

s5, cooling: opening the box cover, and cooling for 5-10 minutes;

s6, discharging: the foaming box is partially disassembled to realize discharging, and the discharging can be realized manually by means of tools.

The above examples 1 to 3 respectively adopt three foam plastic preparation methods of novel plastic liquid foaming, plastic crystal foaming and conventional plastic liquid foaming, and the following tables show the comparison of the environmental pollution rate, cooling time and overall preparation process variation of the three foam preparation methods.

It is clear from the above table that the air pollution rate of the example three is much higher than that of the example one when the example one is compared with the example one, and the cooling and preparation process time is much higher than that of the example one when the example one is compared with the example three, and the cooling time factor is eliminated.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A preparation process of fiber reinforced foamed plastic adopts a preparation device to prepare, the preparation device comprises a preparation box (1), and is characterized in that the top of the preparation box (1) is provided with a raw material inlet (2) and a short fiber particle inlet (3), the bottom of the preparation box (1) is provided with a water tank (12), the preparation box (1) is provided with an exhaust box (4), a control panel (5), a first motor (6), a second motor (7), a hydraulic push rod (8), a steam inlet (9), a pressure gauge (10) and a closing cover (11), a stirring tank (18), a pressure plate assembly (20) and a foaming tank (21) are arranged inside the preparation box (1), and an exhaust port (19) is arranged on the inner wall of the preparation box (1);

the stirring tank (18) is communicated with the raw material inlet (2) and the short fiber particle inlet (3), a stirring blade (25) is arranged inside the stirring tank (18), the stirring blade (25) is connected with the transmission end of the first motor (6), a base (23) is arranged at the bottom of the stirring tank (18), a third motor (26) is arranged at the side end of the stirring tank (18), the base (23) and the stirring tank (18) are of an integrated structure, a sealing cover (24) is arranged on the base (23), and the sealing cover (24) is connected with the transmission end of the third motor (26);

the pressing plate assembly (20) comprises a rotating plate (27) and a limiting plate (28), a spring (29) is arranged between the rotating plate (27) and the limiting plate (28), the rotating plate (27) and the limiting plate (28) are connected through the spring (29), one end of the rotating plate (27) is connected to the inner wall of the preparation box (1) through a rotating screw, and the other end of the rotating plate is connected with a transmission end of a second motor (7);

the foaming groove (21) is communicated with the steam inlet (9), a water inlet (30), a water outlet (32) and a push plate placing groove are formed in the side wall of the foaming groove (21), a push plate (22) is embedded in the push plate placing groove, a through hole is formed in the inner wall of the push plate placing groove, the hydraulic push rod (8) is fixed on the outer wall of the preparation box (1) through a screw, the telescopic end of the hydraulic push rod (8) penetrates through the through hole and is locked and fixed with the push plate (22) through the screw, a water circulation groove (31) is distributed in the side wall of the foaming groove (21), and two ends of the water circulation groove (31) are respectively communicated with the water inlet (30) and the water outlet (32);

the water tank (12) is provided with a water filling port (13), a water discharging port (14) and a water temperature meter (17), one side of the water tank (12) is provided with a water discharging pipe (15), the other side of the water tank is provided with a transmission box (16), one end of the water discharging pipe (15) is hermetically communicated with the inside of the water tank (12), the other end of the water discharging pipe is hermetically communicated with a water outlet (32), a water pump (33) is arranged inside the transmission box (16), the transmission box (16) is provided with a water inlet pipe (34), one end of the water inlet pipe (34) is hermetically communicated with a water inlet (30), the other end of the water inlet pipe is hermetically communicated with a water outlet of the water pump (33), and a water inlet port of the water pump (33) is communicated with the inside of the water tank (12);

the utility model discloses a fan, exhaust box, filter box, air exhaust case, air exhaust case, air exhaust case, air exhaust case, air exhaust case, and air exhaust case, air exhaust case, air exhaust case, air, and air, air exhaust case, air, and air, air exhaust, and air, air exhaust, and air, air exhaust, air, and exhaust, and air exhaust case, and air, and filter.

2. The preparation process of the fiber reinforced foam plastic as claimed in claim 1, wherein the preparation tank (1) and the stirring tank (18) are both made of stainless steel, the stirring tank (18) is welded and fixed with the preparation tank (1), the bottom of the stirring tank (18) is of an arc structure, the third motor (26) is fixed at the side end of the stirring tank (18) through screws, the stirring blades (25) in the stirring tank (18) are of a four-blade structure, and leak holes are distributed on the stirring blades (25).

3. The preparation process of the fiber reinforced foam plastic as claimed in claim 1, wherein the rotating plate (27) and the limiting plate (28) are both made of ceramic materials, the rotating plate (27) and the limiting plate (28) have the same size, and springs (29) distributed between the rotating plate (27) and the limiting plate (28) are respectively locked and fixed with the rotating plate (27) and the limiting plate (28) through screws.

4. The preparation process of the fiber reinforced foam plastic as claimed in claim 1, wherein the push plate (22) is a stainless steel plate body, the push plate (22) is matched with the push plate placing groove in size, and a rubber gasket is bonded on the embedded surface of the push plate (22) and the push plate placing groove.

5. The preparation process of the fiber reinforced foam plastic as claimed in claim 1, wherein control valves are arranged on the steam inlet (9), the water injection port (13), the water discharge port (14), the water discharge pipe (15) and the water inlet pipe (34), and the control valves are electronic valves.

6. The preparation process of the fiber reinforced foam plastic as claimed in claim 1, wherein a mounting cover is arranged on the top of the filter box (36), a sponge net (39), a filter element sheet (40) and an activated carbon net (41) are arranged inside the filter box (36), and the sponge net (39), the filter element sheet (40) and the activated carbon net (41) are all fixed on the inner wall of the filter box (36) through screws;

the preparation process of the foam plastic comprises the following steps:

s1, adding raw materials: introducing a plastic solution (polystyrene, polyvinyl chloride or polyurethane) into a stirring tank (18) from a raw material inlet (2) at the top of a preparation box (1);

s2, adding ingredients: short fiber particles are introduced into a stirring tank (18) from a short fiber particle inlet (3) at the top of a preparation box (1), and the mixing ratio of the short fiber particles to the plastic solution is 1: 3;

s3, stirring and mixing: the raw material inlet (2) and the short fiber particle inlet (3) are embedded with corresponding cover bodies, the control panel (5) is used for starting the first motor (6), the first motor (6) drives the stirring blade (25) in the stirring tank (18) to rotate, and the stirring blade (25) is used for uniformly mixing the plastic solution and the short fiber particles;

s4, discharging the solution: after the plastic solution is mixed, a second motor (7) is started through a control panel (5), the second motor (7) drives a pressing plate assembly (20) to rotate, the maximum rotation angle of the pressing plate assembly (20) is 40 degrees, then a third motor (26) at the side end of a stirring tank (18) is started through the control panel (5), the third motor (26) drives a sealing cover (24) on a base (23) to rotate, the mixed plastic solution is introduced into a foaming tank (21) through the pressing plate assembly (20), and after the introduction is completed, the pressing plate assembly (20) is driven to reset through the third motor (26);

s5, air purification: an inner fan (35) of an exhaust box (4) is started through a control panel (5), air enters from a raw material inlet (2) and a short fiber particle inlet (3) and enters a filter box (36) through an exhaust port (19), and then sequentially passes through an activated carbon net (41), a filter element sheet (40) and a sponge net (39), so that the residual peculiar smell air in the stirring tank (18) is evolved and exhausted to the outside through an exhaust hood (37);

s6, foaming and molding: steam is introduced through the steam inlet (9), and the mixed plastic solution can be foamed under the action of high-temperature steam;

s7, cooling and discharging: after foaming and forming, a water pump (33) of a transmission box (16) is started through a control panel (5), the water pump (33) introduces water in a water tank (12) into the side wall of a foaming groove (21) through a water inlet pipe (34), the water is transmitted through a plurality of water body circulation grooves (31), flowing water can absorb heat of the foaming groove (21), the water after heat absorption flows into the water tank (12) through a water discharge pipe (15), the purpose of heat absorption and cooling is achieved, when the water temperature in the water tank (12) exceeds 35 ℃, water is changed through a water injection port (13) and a water discharge port (14) in the water tank (12), the whole cooling time is 15-20min, after foaming is completed, a closing cover (11) is opened, a push plate (22) is driven through a hydraulic push rod (8), and the push plate (22) pushes out foamed and discharging is achieved.