CN211868398U

CN211868398U - Production device of environment-friendly and energy-saving acrylic plate

Info

Publication number: CN211868398U
Application number: CN201822140679.0U
Authority: CN
Inventors: 霍振辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2020-11-06
Anticipated expiration: 2028-12-19

Abstract

The utility model discloses an environment-friendly and energy-saving acrylic plate production device, which comprises an acrylic recovery cracking mechanism and an acrylic plate forming mechanism; cracking mechanism is retrieved to ya keli includes cooling system and each other becomes the heating pipe of predetermined angle setting, ya keli board forming mechanism includes nozzle, spray set, hot-blast apparatus, goes up forming mechanism and forming mechanism down. The embodiment of the utility model provides a retrieve the ya keli board of schizolysis mechanism to retrieving through ya keli and carry out the schizolysis, obtain the MMA monomer, make the ya keli board again as the main raw materials with the MMA monomer through ya keli board forming mechanism, realize the cyclic utilization of ya keli board.

Description

Production device of environment-friendly and energy-saving acrylic plate

Technical Field

The utility model relates to an inferior gram force board cyclic utilization technical field especially relates to an apparatus for producing of inferior gram force board of environmental protection and energy saving.

Background

Methyl methacrylate is an organic compound, also known as MMA, abbreviated as methylmethacrylate. Is an important chemical raw material, and is a monomer for producing transparent plastic polymethyl methacrylate (polymethyl methacrylate, PMMA). MMA can be cracked out by heating the acrylic plate used for producing the bathtub to a certain temperature, the waste acrylic plate is recovered, heated and cracked, and the main cracked product MMA is recovered and stored, so that the method is an effective method for recycling the acrylic plate.

The existing acrylic plate heating mainly uses a boiler, the acrylic plate is placed in the boiler for heating, and cracked gas is collected at the top of the boiler. The disadvantages of using this method are: 1. the heat preservation of the boiler is poor, and a large amount of energy is consumed in the heating process. 2. The acrylic plates in the boiler are heated unevenly, the temperature of the peripheral acrylic plates is too high, the central acrylic plates do not reach the cracking and evaporating temperature, and the cracking efficiency and the recovery quality are influenced. 3. The heated slag needs to be cleaned by opening a cover of the boiler, and the MMA gas has irritation, so that the health of operators is affected.

The existing acrylic plate mainly adopts a frame-shaped die, which mainly comprises an upper plate and a lower plate, wherein the two plates clamp a forming raw material of the acrylic plate in the middle, then the acrylic plate is hung in a warm water pool to be subjected to water bath, the acrylic plate is hung out or moved into the warm water pools with different temperatures after a plurality of hours, and the raw material of the acrylic plate in the die is polymerized to form the solid acrylic plate. The method needs a large amount of occupied space and has low production efficiency. In order to ensure the smoothness of the acrylic plate, the two plates serving as the mold are generally made of glass, and the glass is easy to break in the carrying process, so that the safety of workers is threatened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a production device of inferior gram force board of environmental protection and energy saving is provided, can realize the automatic circulation of inferior gram force board and give a new lease of life technology, and energy-concerving and environment-protective, production efficiency is high.

In order to solve the technical problem, the utility model provides an environment-friendly and energy-saving acrylic plate production device, which comprises an acrylic recovery cracking mechanism and an acrylic plate forming mechanism;

the acrylic acid recycling and cracking mechanism comprises a cooling system and heating pipes which are arranged at a preset angle with each other, and the heating pipes are sequentially connected; the top of the heating pipe is connected with an air outlet pipe, and a screw rod is arranged in the heating pipe; the acrylic recovery particles can move forwards in the heating pipes in sequence under the pushing of the screw rod for heating and are dispersed at the joint of the two heating pipes; introducing MMA gas generated by cracking in the heating tube into a cooling system through an air outlet pipe for cooling to obtain a jelly-like MMA monomer;

the acrylic plate forming mechanism comprises a nozzle, a spraying device, a hot air device, an upper forming mechanism and a lower forming mechanism, wherein the nozzle is used for spraying an MMA monomer for heating an initiator between the upper forming mechanism and the lower forming mechanism; the upper forming mechanism comprises an upper forming roller, an upper forming steel belt, a first upper roller and a second upper roller, and the upper forming steel belt is arranged on the first upper roller and the second upper roller; the lower forming mechanism comprises a lower forming roller, a lower forming steel belt, a first lower roller and a second lower roller, and the lower forming steel belt is arranged on the first lower roller and the second lower roller; the upper forming steel belt and the lower forming steel belt are used for clamping MMA monomers added with the initiator, sequentially enter the spraying device area and the hot air device area, and are heated in time-division and temperature-division areas in a time-division mode to finally form the acrylic plate.

As an improvement of the above scheme, the acrylic acid recycling and cracking mechanism comprises a first heating pipe, a second heating pipe and a third heating pipe which are sequentially connected, wherein screws are arranged in the first heating pipe, the second heating pipe and the third heating pipe, and the first heating pipe, the second heating pipe and the third heating pipe are provided with heating devices;

a feed inlet is formed in the front end of the first heating pipe, a first air outlet pipe is arranged on the first heating pipe, second air outlet pipes are arranged at different positions on the second heating pipe, and third air outlet pipes are arranged at different positions on the third heating pipe;

the second heating pipe is connected with the third heating pipe through a vent pipe which is vertically arranged, the second heating pipe is connected with the side surface of the vent pipe, the third heating pipe is connected with the lower end of the vent pipe, and the upper end of the vent pipe is connected with a fourth air outlet pipe;

cooling system is divided pipe, water-cooling house steward and liquid nitrogen cooling mechanism including the water-cooling that connects gradually, the water-cooling is divided the pipe and is used for cooling liquefaction with MMA monomer steam, the water-cooling house steward divides the MMA monomer after the pipe liquefaction with the water-cooling to collect the cooling, liquid nitrogen cooling mechanism is used for cooling the MMA monomer after the water-cooling house steward cooling to predetermined temperature to preserve.

As an improvement of the above scheme, the screw comprises a rod body, a feeding fan blade group and a reaction fan blade group, wherein the feeding fan blade group is formed by arranging feeding fan blades along the rod body in the same circumference, and the reaction fan blade group is formed by arranging reaction fan blades along the rod body in the same circumference; the inclination angle of the feeding fan blades is larger than that of the reaction fan blades; the reaction fan blade groups are axially arranged on the rod body at intervals of a preset distance; an exhaust gap is arranged between the adjacent reaction fan blades in the same group.

As an improvement of the above scheme, all the reaction fan blades of the same reaction fan blade group are located in the same spiral plane, or all the reaction fan blades of the same reaction fan blade group have the same structure and are circumferentially arranged on the same radial node.

As an improvement of the above scheme, the nozzle is arranged at the feeding ends of the upper forming mechanism and the lower forming mechanism and used for spraying the acrylic solution between the upper forming mechanism and the lower forming mechanism; the upper forming roller is matched with the lower forming roller, so that the working surface of the upper forming steel belt and the working surface of the lower forming steel belt keep a preset distance; the spraying device is a plurality of groups of water spray heads arranged at different positions of the upper forming mechanism and the lower forming mechanism, and controls the temperature of the preset positions of the upper forming mechanism and the lower forming mechanism by spraying water with different temperatures; the hot air device is a plurality of groups of hot air spray heads arranged at different positions of the upper forming mechanism and the lower forming mechanism, and controls the temperature of the preset position of the upper forming mechanism and the lower forming mechanism by spraying hot air with different temperatures.

As an improvement of the above scheme, the nozzle is connected with a movable feeding mechanism, and the movable feeding mechanism comprises a semispherical seat which is connected with the feeding pipe and is fixedly arranged, and an arc-shaped cover which is arranged on the semispherical seat and can move relative to the semispherical seat; the arc-shaped cover is provided with a horizontal swinging head capable of swinging horizontally, and the horizontal swinging head is provided with the nozzle; the plurality of horizontal swinging heads are disc-shaped and are arranged up and down in sequence; the upper part of the horizontal swinging head is provided with an outward flange, the lower part of the horizontal swinging head is provided with an inward flange, and the inward flange of the horizontal swinging head positioned on the upper part is hooked with the outward flange of the horizontal swinging head positioned on the lower part.

As an improvement of the scheme, the upper forming steel belt is also provided with a vacuum adsorption mechanism for enabling a working part of the upper forming steel belt to be tightly attached to the corresponding upper forming roller; the vacuum adsorption mechanism comprises a first sleeve, a second sleeve and a vacuum pump; the second sleeve is sleeved in the first sleeve, the bottom surface of the first sleeve is located on the upper surface of the working part of the upper forming steel strip, the second sleeve can stretch relative to the first sleeve, and the vacuum pump is used for sucking air in the first sleeve and the second sleeve.

As an improvement of the above scheme, the upper forming roller and the lower forming roller are fixedly installed through corresponding adjusting seats, and the adjusting seats have independent adjusting functions of a single upper forming roller or a single lower forming roller and a plurality of independent adjusting functions of the upper forming roller or the lower forming roller; the adjusting fixing seat comprises a fixedly arranged base plate, and a sliding groove is vertically formed in the base plate; the movable plate can slide up and down relative to the base plate, and a sliding block is arranged on the movable plate and extends into the sliding groove; the movable plate is provided with an adjusting bolt, and the upper forming roller or the lower forming roller is arranged on the adjusting bolt through a sliding seat.

As an improvement of the scheme, the base plate is provided with positioning screw holes with different heights, and the movable plate is fixed on the different positioning screw holes so as to adjust the height of the upper forming roller or the lower forming roller arranged on the movable plate.

As an improvement of the scheme, the movable plate is further connected with an adjusting screw rod, the adjusting screw rod is connected with a servo motor, and the adjusting screw rod is driven to rotate through the servo motor so as to adjust the height of the movable plate.

Implement the utility model discloses, following beneficial effect has:

the embodiment of the utility model provides a retrieve the ya keli board of schizolysis mechanism to retrieving through ya keli and carry out the schizolysis, obtain the MMA monomer, make the ya keli board again as the main raw materials with the MMA monomer through ya keli board forming mechanism, realize the cyclic utilization of ya keli board.

The utility model provides a cracking mechanism is retrieved to ya keli can make the yakeli granule after smashing heat in proper order in first heating pipe, second heating pipe and the third heating pipe in heating system to make the gaseous of splitting out appear under the propelling movement of screw rod and stirring, after the segmentation got into each outlet duct, get into cooling system and cool off, accomplish the schizolysis of yakeli board automatically, the gaseous cooling of MMA and store, efficient, energy-concerving and environment-protective.

The utility model provides an inferior gram force board forming mechanism can carry out continuous molding to the inferior gram force board through continuous moving last shaping steel band and lower shaping steel band to make the different positions of going up forming mechanism and lower forming mechanism through spray set and be in anticipated temperature environment, accelerate the polymerization of ya keli raw materials, production efficiency is high, inferior gram force board once only automatic molding avoids operations such as current technology handling mould, has simplified production technology. Compared with the traditional electric heating mode, the spraying heating mode has more uniform temperature rise and is beneficial to improving the polymerization quality of the acrylic plate. The hot air heating can heat the acrylic raw material to over one hundred ℃, thereby expanding the process application range of the production system.

Drawings

Fig. 1 is a schematic structural diagram of a heating system of the acrylic recovery cracking mechanism of the present invention;

FIG. 2 is a schematic diagram of a cooling system of the acrylic recovery cracking mechanism of the present invention;

FIG. 3 is a schematic structural view of the water-cooling branch pipe of the present invention;

FIG. 4 is a schematic structural diagram of a liquid nitrogen tank of the present invention;

fig. 5 is a schematic structural view of the first heating pipe, the second heating pipe or the third heating pipe of the present invention;

fig. 6 is a schematic structural view of a first embodiment of the screw of the present invention;

fig. 7 is a schematic structural view of a second embodiment of the screw of the present invention;

fig. 8 is a schematic view of the overall structure of the acrylic plate forming mechanism of the present invention;

fig. 9 and 10 are schematic structural views of the nozzle and the movable feeding mechanism of the present invention;

fig. 11 and 12 are schematic structural views of the vacuum adsorption mechanism of the present invention;

fig. 13 is a schematic structural view of a first embodiment of an adjusting base according to the present invention;

fig. 14 is a schematic structural view of a second embodiment of the adjusting base of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

The embodiment of the utility model provides a retrieve the ya keli board of schizolysis mechanism to retrieving through ya keli and carry out the schizolysis, obtain the MMA monomer, make the ya keli board again as the main raw materials with the MMA monomer through ya keli board forming mechanism, realize the cyclic utilization of ya keli board. The present embodiment is divided into two parts of acrylic cleavage and polymerization, and the corresponding mechanical structure and principle are detailed below. Cracking mechanism is retrieved to ya keli

With reference to fig. 1 and 2, the acrylic acid recycling and cracking mechanism comprises a heating system 1 and a cooling system 2; the heating system 1 comprises a first heating pipe 11, a second heating pipe 12 and a third heating pipe 13 which are connected in sequence, wherein screw rods 14 are arranged in the first heating pipe 11, the second heating pipe 12 and the third heating pipe 13, and heating devices 15 are arranged in the first heating pipe 11, the second heating pipe 12 and the third heating pipe 13; the front end of the first heating pipe 11 is provided with a feeding hole 111, the first heating pipe 11 is provided with a first air outlet pipe 16, different positions on the second heating pipe 12 are provided with second air outlet pipes 17, different positions on the third heating pipe 13 are provided with third air outlet pipes 18, the second heating pipe 12 is connected with the third heating pipe 13 through a vertically arranged vent pipe 10, the second heating pipe 12 is connected with the side surface of the vent pipe 10, the third heating pipe 13 is connected with the lower end of the vent pipe 10, and the upper end of the vent pipe 10 is connected with a fourth air outlet pipe 19; cooling system 2 is divided pipe 21, water-cooling house steward 22 and liquid nitrogen cooling mechanism 23 including the water-cooling that connects gradually, the water-cooling is divided pipe 21 and is used for cooling liquefaction with MMA monomer steam, the MMA monomer that the water-cooling was divided after pipe 21 liquefaction is divided to the water-cooling house steward 22 collects the cooling, liquid nitrogen cooling mechanism 23 is used for cooling the MMA monomer after the water-cooling house steward 22 cooling to predetermined temperature to preserve.

Adopt this embodiment, can make the ya keli granule after smashing heat in first heating pipe 11, second heating pipe 12 and the third heating pipe 13 in heating system 1 in proper order to make the gaseous of splitting out appear under screw 14's propelling movement and stirring, after the segmentation gets into each outlet duct, get into cooling system 2 and cool off, accomplish the schizolysis of ya keli board automatically, MMA gaseous cooling and storage, it is efficient, energy-concerving and environment-protective.

Specifically, combine fig. 3 and 4, water-cooling minute pipe 21 includes first water-cooling casing 211 and gas flow circulation minute pipe 212, water-cooling main 22's structure is similar with water-cooling minute pipe 21, including second water-cooling casing and gas flow circulation main, gas flow circulation minute pipe 212 is located in first water-cooling casing 211, gas flow circulation main locates in the second water-cooling casing, all be equipped with the coolant liquid in first water-cooling casing 211 and the second water-cooling casing, the coolant liquid cools off in letting in the water-cooling tower. The liquid nitrogen cooling mechanism 23 includes a liquid nitrogen tank having an MMA monomer accommodating chamber 231 and a liquid nitrogen accommodating chamber 232 provided around the MMA monomer accommodating chamber 231; the liquid nitrogen production device is used for supplying liquid nitrogen to the liquid nitrogen containing chamber 232.

The working principle and steps of the cracking process are explained in detail below by combining the specific structure of the scheme:

1. and crushing the recycled acrylic plate to obtain acrylic particles.

2. Acrylic particles are added from a feeding hole 111 of the first heating pipe 11, a screw 14 in the first heating pipe 11 rotates, meanwhile, a heating device 15 on the first heating pipe 11 starts to heat the first heating pipe 11, and the temperature of the acrylic particles starts to rise. Referring to fig. 5, the heating device 15 is an induction heating coil wound on the surface of the first heating pipe 11, the second heating pipe 12 or the third heating pipe 13; the surface of the first heating pipe 11, the second heating pipe 12 or the third heating pipe 13 is coated with a heat insulating layer 151 to prevent heat dissipation.

Referring to fig. 6, in order to improve the stacking of the acrylic particles in the heating tube, the screw 14 has a special structure: the screw 14 comprises a rod body 141, a feeding fan blade group 142 and a reaction fan blade group 143, the feeding fan blade group 142 is formed by arranging feeding fan blades along the rod body 141 in the same circumference, and the reaction fan blade group 143 is formed by arranging reaction fan blades along the rod body 141 in the same circumference; the inclination angle of the feeding fan blades is larger than that of the reaction fan blades; the reaction fan blade sets 143 are axially arranged on the rod body 141 at intervals of a predetermined distance; an exhaust gap 144 is arranged between the adjacent reaction fan blades in the same group. When ya keli granule and screw 14 contact, the great feeding fan blade group 142 of inclination can be relatively fast with yakeli granule forward transport, guarantees that the space that gets into yakeli granule in the first heating pipe 11 is compressed, improves the treatment effeciency.

Then, the acrylic particles are in contact with the reaction fan blade group 143, and the reaction fan blade group 143 not only pushes the acrylic forward, but also plays a role in turning the acrylic so as to heat the acrylic uniformly, and more importantly, the gas generated by cracking can be rapidly discharged. According to the first embodiment of the reaction fan blade set 143 of the present invention, all the reaction fan blades 143a of the same reaction fan blade set 143 are located in the same spiral plane. The feeding fan blade group 142 is composed of 3 feeding fan blades; the reaction fan blade set 143 is composed of 3 reaction fan blades 143 a. At this time, all the reaction blades 143a appear as if the screw threads of the screws were cut with 3 notches in the axial direction, and the notches form the exhaust gap 144. By adopting the structure, the reaction fan blades 143a all move on the thread line, the conveying of the acrylic is more stable, and after the acrylic between each group of reaction fan blades 143a is cracked to generate gas, when the exhaust gap 144 of the reaction fan blades 143a faces upwards, the generated gas can move from the exhaust gap 144 to different reaction fan blade groups 143 until being exhausted from the first air outlet pipe 16.

As shown in fig. 7, according to the second embodiment of the reaction fan blade group 143 of the present invention, all the reaction fan blades 143b of the same reaction fan blade group 143 have the same structure and are circumferentially disposed on the same radial node. At this time, all the reaction blades 143b look like blades of a general fan, and the exhaust gap 144 is naturally formed by the gap between the reaction blades 143 b. By adopting the structure, the acrylic is thoroughly stirred when passing through each group of reaction fan blade groups 143, so that the gas is more favorably discharged, the acrylic is heated more uniformly, but the diameter proportion of the feeding fan blade groups 142 and the reaction fan blades 143b is required to be designed, so that the feeding speed of the acrylic is controlled, the phenomenon that the friction force between the acrylic is too large due to too fast feeding is prevented, and the screw 14 cannot rotate or deform and damage is avoided.

3. The acryl moves among the first heating pipe 11, the second heating pipe 12 and the third heating pipe 13 in sequence until all MMA monomers are cracked and discharged. The temperatures of the first heating pipe 11, the second heating pipe 12 and the third heating pipe 13 are sequentially increased, and their temperatures are between 300 and 600 degrees. The first heating pipe 11 and the second heating pipe 12, and the second heating pipe 12 and the third heating pipe 13 are arranged perpendicular to each other. The vertically arranged three sections of tube bodies enable the acrylic to be subjected to steering or dropping when different tube bodies are used, and the blocked acrylic is easy to separate in the steering or dropping process, so that the cracking is convenient to continue.

Wherein, the second outlet pipes 17 are divided into two groups, which are respectively arranged on the second heating pipe 12 and close to the connection part of the second heating pipe 12 and the first heating pipe 11 or the vent pipe 10, and the third outlet pipes 18 are divided into three groups, which are uniformly distributed on the third heating pipe 13 at intervals and are simultaneously connected into the outlet collecting pipe 181. The second heating pipe 12 is connected with the third heating pipe 13 through a vent pipe 10 which is vertically arranged, the second heating pipe 12 is connected with the side surface of the vent pipe 10, and the third heating pipe 13 is connected with the lower end of the vent pipe 10. The acrylic sent from the end of the second heating tube 12 has undergone temperature rise at both ends and most of it has been cracked, but part of the acrylic containing impurities may be aggregated into lumps and is difficult to separate. At this moment, after such inferior gram force gets into permeability cell 10, because do not have screw rod 14 in the permeability cell 10, can not receive the hindrance of screw rod 14, its space is also obviously great, and it is vertical setting, inferior gram force carries out the free fall motion here, utilizes self gravity, separates the inferior gram force piece. Or in the space, the pressure outside the acrylic block is reduced, and the gas in the acrylic block can bounce open the acrylic block into several blocks, escape from the bounced acrylic blocks, and then directly discharge from the fourth gas outlet pipe 19 at the top of the gas permeable pipe 10.

4. Condensation of

The MMA gas generated from the first heating pipe 11, the second heating pipe 12, the third heating pipe 13, and the ventilation pipe 10 is automatically gathered toward the upper portion of the pipe body due to its low density, and is discharged from the corresponding first outlet pipe 16, second outlet pipe 17, third outlet pipe 18, and fourth outlet pipe 19, and enters the water-cooled branch pipe 21. In the water-cooled branch pipe 21, the MMA gas is introduced into the gas-liquid circulation branch pipe 212, and exchanges heat with the coolant in the first water-cooled housing 211, the MMA gas is gradually cooled and liquefied, the volume of the partially liquefied MMA gas is greatly reduced, and then the MMA gas is collected and introduced into the water-cooled header pipe 22. Further cooling in water cooled header 22 converts most of the gas to liquid. Finally, the MMA monomer is introduced into a liquid nitrogen cooling mechanism 23 to reduce the activity thereof, so that the MMA monomer is in a gel-like stable state and is convenient for storage and subsequent treatment.

Acrylic plate forming mechanism

As shown in fig. 8, the acrylic sheet forming mechanism includes a nozzle 31, a spraying device 6, a hot air device, an upper forming mechanism 8 and a lower forming mechanism 9, the upper forming mechanism 8 includes upper forming rollers (81a, 81b), an upper forming steel strip 82, a first upper roller 83 and a second upper roller 84, and the upper forming steel strip 82 is arranged on the first upper roller 83 and the second upper roller 84; the lower forming mechanism 9 comprises lower forming rollers (91a, 91b), a lower forming steel belt 92, a first lower roller 93 and a second lower roller 94, and the lower forming steel belt 92 is arranged on the first lower roller 93 and the second lower roller 94; the nozzle 31 is arranged at the feeding ends of the upper forming mechanism 8 and the lower forming mechanism 9 and is used for spraying an acrylic solution between the upper forming mechanism 8 and the lower forming mechanism 9; the upper forming rollers (81a, 81b) and the lower forming rollers (91a, 91b) are matched to keep the working surface of the upper forming steel belt 82 and the working surface of the lower forming steel belt 92 at a preset distance; the spraying device 6 comprises a plurality of groups of water spray heads 61 arranged at different positions of the upper forming mechanism 8 and the lower forming mechanism 9, and the water spray heads spray water with different temperatures to enable the different positions of the upper forming mechanism 8 and the lower forming mechanism 9 to be in expected temperature environments; the hot air device is a plurality of groups of hot air spray heads 75 arranged at different positions of the upper forming mechanism 8 and the lower forming mechanism 9, and controls the temperature of the preset positions of the upper forming mechanism and the lower forming mechanism by spraying hot air with different temperatures. The production system divides the upper forming mechanism and the lower forming mechanism into a normal-temperature process area, a water-bath heating process area and a hot-air heating process area through segmented partition plates. The hot air nozzle 75 is connected with the blower 76 and the heating device 77, and the blower 76 heats the outside air by the heating device 77, then the heated air is introduced into the hot air nozzle 75 and is sprayed out from the hot air nozzle 75.

This scheme is through continuous operation's last forming steel band 82 and lower forming steel band 92 to the ya keli board carries out continuous molding to make the different positions of going up forming mechanism 8 and lower forming mechanism 9 be in anticipated temperature environment through spray set for the polymerization of ya keli raw materials, production efficiency is high, and the disposable automatic molding of ya keli board avoids operations such as current technology handling mould, has simplified production technology. Compared with the traditional electric heating mode, the spraying heating mode has more uniform temperature rise and is beneficial to improving the polymerization quality of the acrylic plate. The hot air heating can heat the acrylic raw material to over one hundred ℃, thereby expanding the process application range of the production system.

Since the acrylic raw material is sprayed between the upper forming mechanism 8 and the lower forming mechanism 9 through the nozzle 31, wherein the first upper roller 83 is located behind the first lower roller 93, the sprayed acrylic raw material can be compacted under the action of the steel belt cambered surface formed by the cambered surface of the first upper roller 83, the gas in the acrylic raw material is discharged, and the surface defect of the acrylic plate caused by the existence of bubbles is prevented. However, the requirement for the injection angle of the nozzle 31 is extremely high, whether the arc surface of the steel strip can completely discharge the bubbles in the yakeli material. Each nozzle 31 must be able to adjust its respective spray angle precisely as required and independent of the spray velocity. The present application thus contemplates a movable feed mechanism that cooperates with the nozzle 31.

As shown in fig. 9 and 10, the nozzle 31 is connected to a movable feeding mechanism, which includes a hemisphere base 32 connected to and fixedly disposed on the feeding pipe, and an arc-shaped cover 33 disposed on the hemisphere base 32 and capable of moving relative to the hemisphere base 32; the arc-shaped cover 33 is provided with a horizontal swinging head 34 capable of swinging horizontally, and the horizontal swinging head 34 is provided with the nozzle 31.

Preferably, the plurality of horizontal oscillating heads 34 are disc-shaped and are arranged one above the other; the upper part of the horizontal swinging head 34 is provided with an outer flanging 341, the lower part is provided with an inner flanging 342, and the inner flanging of the horizontal swinging head positioned at the upper part is hooked with the outer flanging of the horizontal swinging head positioned at the lower part. When the position of the nozzle 31 needs to be adjusted, the inclination angle of the horizontal swinging head can be integrally controlled by moving the arc-shaped cover 33 on the hemispherical seat 32; then, the horizontal swinging head is rotated to control the included angle between the nozzles 31, and different nozzles 31 are controlled to spray the acrylic raw material into a preset position between the upper forming mechanism 8 and the lower forming mechanism 9, so that the acrylic raw material uniformly enters a forming gap between the upper forming mechanism 8 and the lower forming mechanism 9.

Preferably, the upper forming roller 81a and the lower forming roller 91a located in the process zone corresponding to the spraying device 6 are made of plastic; the upper forming roll 81b and the lower forming roll 91b located at the process area corresponding to the hot air device are made of stainless steel. Spray set 6 heats up through the blowout hot water, its biggest intensification temperature is less than 100 degrees, but the specific heat of water is big, can be with in a large amount of heat transfer to the ya keli raw materials that pass through, heat up rapidly, evenly, the last forming roll 81a and the lower forming roll 91a that cooperation plastics were made can reduce the rigidity collision and the friction of last forming roll 81b and lower forming roll 91b and last forming steel band 82 and lower forming steel band 92, make the transmission more steady, the thickness of ya keli is more even. The highest temperature of the hot air device can reach more than three hundred degrees, the acrylic raw material heated by the spraying device 6 can be further heated, the polymerization reaction is accelerated, the upper forming roller 81b and the lower forming roller 91b which are made of stainless steel are matched, the upper forming roller 81b and the lower forming roller 91b can be prevented from being bent at high temperature, and the upper forming roller 81b and the lower forming roller 91b are guaranteed to still keep due rigidity at high temperature.

In order to realize accurate zonal temperature control, the scheme divides the upper forming mechanism 8 and the lower forming mechanism 9 into different process areas through sectional partition plates 71, and an upper forming steel belt 82 and a lower forming steel belt 92 pass through between the sectional partition plates 71. The space between the partition plates 71 is also favorable for collecting and recycling the water for heating.

Preferably, the water jets 61 are disposed in guide slots 62, and the guide slots 62 are disposed obliquely with respect to the upper profiled steel strip 82 or the lower profiled steel strip 92. The guide groove 62 arranged obliquely enables water sprayed by the water spray head 61 to be inclined towards a preset direction, the water is scattered, the water flow is prevented from impacting a certain position of the upper forming steel strip 82 or the lower forming steel strip 92 in a concentrated mode, and heat conduction is enabled to be more uniform.

The spraying mechanism 6 is connected with a water supply mechanism, and the water supply mechanism comprises a water collecting mechanism 72, a water filtering mechanism 73 and a water heating and pressurizing mechanism 74. The water collecting mechanism 72 is a funnel-shaped groove arranged below the lower forming mechanism, the water filtering mechanism 73 is connected with the funnel-shaped groove, and the water collecting mechanism mainly comprises a filter screen and filter cotton in sequence and is used for filtering the collected water; the water heating and pressurizing mechanism 74 is composed of an electric heating pipe and a pressurizing pump, the water flowing through the electric heating pipe is heated, and the heated water is pumped to the water spray head 61 through the pressurizing pump.

In order to realize continuous molding of the acrylic sheet, the upper molding mechanism 8 and the lower molding mechanism 9 must have a large length, and in particular, the working length of the upper molding mechanism 8 and the lower molding mechanism 9 for clamping the acrylic sheet should be more than 1 km. The upper forming mechanism 8 of such a length has a large span of the upper forming steel strip 82, and the work surface is inevitably sagged by gravity. In order to avoid the sagging of the upper forming steel belt 82 and influence the thickness uniformity of the acrylic plate, as shown in fig. 11 and 12, a vacuum adsorption mechanism 4 is further provided on the upper forming steel belt 82 for making the working part of the upper forming steel belt 82 closely contact with the corresponding upper forming rollers (81a, 81 b). Wherein, the vacuum adsorption mechanism 4 comprises a first sleeve member 41, a second sleeve member 42 and a vacuum pump (not shown in the figure); the second sleeving part 42 is sleeved in the first sleeving part 41, the bottom surface of the first sleeving part 41 is located on the upper surface of the working part of the upper forming steel belt 82, the first sleeving part 41 can stretch relative to the second sleeving part 42, and the vacuum pump is used for sucking air in the first sleeving part 41 and the second sleeving part 42.

Preferably, the first and

second nesting members

41, 42 are rectangular in cross-section. The bottom of the first nesting part 41 is provided with a movable roller 43, and the lowest point of the movable roller 43 is lower than the bottom surface of the first nesting part 41. When the upper forming steel belt 82 is sucked by the first sleeving part 41, the upper forming steel belt 82 still needs to move forwards, so that friction is inevitably generated between the upper forming steel belt 82 and the first sleeving part 41, the movable roller 43 is in contact with the upper forming steel belt 82, and when the upper forming steel belt 82 moves, the movable roller 43 rotates along with the upper forming steel belt 82, so that the sliding friction of the upper forming steel belt 82 is reduced, and the operation of the upper forming steel belt 82 is more stable.

As described above, the present solution requires a long acrylic sheet forming distance in which the thickness of the acrylic sheet is ensured by the upper forming rollers (81a, 81b) and the lower forming rollers (91a, 91b) provided on the upper forming steel belt 82 and the lower forming steel belt 92. The positions of the upper forming rollers (81a, 81b) and the lower forming rollers (91a, 91b) must be able to be conveniently and accurately regulated. As shown in fig. 13, in the present embodiment, the upper forming rollers (81a, 81b) and the lower forming rollers (91a, 91b) are fixedly installed by the corresponding adjusting seats 5, and the adjusting seats 5 have a single upper forming roller (81a, 81b) or lower forming roller (91a, 91b) independent adjusting function and a plurality of upper forming rollers (81a, 81b) or lower forming rollers (91a, 91b) independent adjusting functions.

Preferably, the adjusting base 5 comprises a base plate 51 fixedly arranged, and a sliding groove 52 is vertically arranged on the base plate 51; a movable plate 53 capable of sliding up and down relative to the base plate 51, wherein a sliding block 54 is arranged on the movable plate 53, and the sliding block 54 extends into the sliding groove 52; the movable plate 53 is provided with an adjusting bolt 55, and the upper forming rollers (81a, 81b) or the lower forming rollers (91a, 91b) are arranged on the adjusting bolt 55 through a pulley seat 56.

According to the first embodiment of the adjusting base 5, the base plate 51 is provided with the positioning screw holes 57 with different heights, and the movable plate 53 is fixed on the different positioning screw holes 57 to adjust the heights of the upper forming rollers (81a, 81b) or the lower forming rollers (91a, 91b) arranged on the movable plate. Because the thickness of inferior gram force board presents the step change according to the difference of specification, through predetermineeing not co-altitude location screw 57 on base plate 51, can quick adjustment the whole height of going up forming roller (81a, 81b), especially the thickness of different product specifications is adjusted into 5 mm's inferior gram force board like 3 mm's inferior gram force board, only need to change movable plate 53 to the location screw 57 of 2mm high, adjust accurately.

As shown in fig. 14, according to the second embodiment of the adjusting base 5 of the present application, an adjusting lead screw 58 is further connected to the movable plate 53, the adjusting lead screw 58 is connected to a servo motor 59, and the servo motor 59 drives the adjusting lead screw 58 to rotate, so as to adjust the height of the movable plate 53. The embodiment introduces the servo motor 59 to adjust the movable plate 53, when the height of the movable plate 53 needs to be adjusted, the servo motor 59 controls the lead screw to rotate by a preset angle, and as the servo motor 59 is fixedly arranged, the movable plate 53 is upgraded to a preset height, all the movable plates 53 can be adjusted at one time, and the adjustment speed is high, and the work is stable and reliable.

The working principle of the present solution is explained below with the structure of the present adjustment seat 5 as a whole:

1. before operation, the distance and the straightness of the upper forming rollers (81a, 81b) and the lower forming rollers (91a, 91b) are adjusted through the adjusting seat 5. The arc cover 33 of the movable feeding mechanism moves relative to the half ball seat 32 to adjust the inclination angle of the nozzles 31, and the horizontal swinging head 34 is horizontally rotated to adjust the included angle between the nozzles 31, so that the acrylic raw material sprayed by the nozzles 31 is uniformly accumulated at the inlets of the upper forming mechanism 8 and the lower forming mechanism 9.

2. An MMA monomer and an initiator are mixed into an acrylic plate raw material and are sprayed between the upper forming mechanism 8 and the lower forming mechanism 9 through the nozzle 31, and the motor drives the first upper roller 83 to rotate and drives the upper forming steel belt 82 to rotate; the motor drives the first lower roller 93 to rotate, drives the lower forming steel belt 92 to rotate, clamps the acrylic plate raw material mixed by the MMA monomer and the initiator in the upper forming steel belt 82 and the lower forming steel belt 92, and conveys the acrylic plate raw material forwards at a constant speed.

3. During the conveying process, the distance between the working surfaces of the upper forming steel belt 82 and the lower forming steel belt 92 is limited by the upper forming rollers (81a, 81b) and the lower forming rollers (91a, 91b), so that the thickness of the acrylic plate is stably controlled.

4. In the conveying process, the upper forming steel belt 82 is adsorbed and lifted through the vacuum adsorption mechanism 4, the dead weight of the upper forming steel belt 82 is offset, and the uniform thickness of the acrylic plate finished product is ensured.

5. In the conveying process, the spraying device 6 sprays warm water to the formed acrylic plate, and hot water bath is carried out on acrylic so that the acrylic raw material reaches the corresponding process temperature. In order to enable the temperature rise and fall time of the acrylic during conveying to meet the process requirement, the scheme divides the upper forming mechanism 8 and the lower forming mechanism 9 into different process areas through segmented partition plates 71, the different process areas correspond to different heating temperatures, and the process requirement that the acrylic keeps at different temperatures for different time can be realized by matching with the adjustment of the transmission speed.

6. In the conveying process, the hot air device blows hot air to the formed acrylic plate, the acrylic plate after being heated in a hot water bath is further heated, the temperature of the acrylic plate exceeds one hundred degrees, the acrylic plate and the initiator fully act, the polymerization speed is accelerated, and the uniformity of the material of the formed acrylic plate is improved.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The production device of the acrylic plate is characterized by comprising an acrylic recovery cracking mechanism and an acrylic plate forming mechanism;

2. The production device of the environment-friendly and energy-saving acrylic plate as claimed in claim 1, wherein the acrylic recovery cracking mechanism comprises a first heating pipe, a second heating pipe and a third heating pipe which are connected in sequence, wherein the first heating pipe, the second heating pipe and the third heating pipe are internally provided with screws, and the first heating pipe, the second heating pipe and the third heating pipe are respectively provided with a heating device;

3. The production device of the environment-friendly and energy-saving acrylic plate as claimed in claim 1, wherein the screw comprises a rod body, a feeding fan blade group and a reaction fan blade group, the feeding fan blade group is formed by arranging feeding fan blades along the rod body in the same circumference, and the reaction fan blade group is formed by arranging reaction fan blades along the rod body in the same circumference; the inclination angle of the feeding fan blades is larger than that of the reaction fan blades; the reaction fan blade groups are axially arranged on the rod body at intervals of a preset distance; an exhaust gap is arranged between the adjacent reaction fan blades in the same group.

4. The apparatus for producing environment-friendly and energy-saving acrylic plates as claimed in claim 3, wherein all the reaction blades of the same reaction blade group are located in the same spiral plane, or all the reaction blades of the same reaction blade group have the same structure and are circumferentially arranged on the same radial node.

5. The production device of the environment-friendly and energy-saving acrylic plate as claimed in claim 1, wherein the nozzle is arranged at the feeding ends of the upper forming mechanism and the lower forming mechanism and used for spraying acrylic solution between the upper forming mechanism and the lower forming mechanism; the upper forming roller is matched with the lower forming roller, so that the working surface of the upper forming steel belt and the working surface of the lower forming steel belt keep a preset distance; the spraying device is a plurality of groups of water spray heads arranged at different positions of the upper forming mechanism and the lower forming mechanism, and controls the temperature of the preset positions of the upper forming mechanism and the lower forming mechanism by spraying water with different temperatures; the hot air device is a plurality of groups of hot air spray heads arranged at different positions of the upper forming mechanism and the lower forming mechanism, and controls the temperature of the preset position of the upper forming mechanism and the lower forming mechanism by spraying hot air with different temperatures.

6. The apparatus for producing an eco-friendly energy-saving acrylic plate as claimed in claim 5, wherein the nozzle is connected to a movable feeding mechanism, the movable feeding mechanism comprising a half ball seat fixedly connected to the feeding pipe and an arc cover provided on the half ball seat and movable relative to the half ball seat; the arc-shaped cover is provided with a horizontal swinging head capable of swinging horizontally, and the horizontal swinging head is provided with the nozzle; the plurality of horizontal swinging heads are disc-shaped and are arranged up and down in sequence; the upper part of the horizontal swinging head is provided with an outward flange, the lower part of the horizontal swinging head is provided with an inward flange, and the inward flange of the horizontal swinging head positioned on the upper part is hooked with the outward flange of the horizontal swinging head positioned on the lower part.