A lightweight and environmentally friendly thermal insulation extruded board for building and preparation method thereof

Abstract

The invention discloses a lightweight and environment-friendly thermal insulation extruded board for building and a preparation method thereof, and relates to the technical field of thermal insulation extruded board materials. The invention embeds a sandwich component in a main board body so that a plurality of balloons which are expanded due to being filled with carbon dioxide gas are evenly distributed in the main board body, thereby effectively reducing the amount of raw materials used to form the main board body, and reducing the cost of processing and producing the thermal insulation extruded board to a certain extent, and making the board lighter. Moreover, by using a large amount of carbon dioxide gas, the negative impact of carbon dioxide gas on the environment can be effectively reduced, making the thermal insulation extruded board more environmentally friendly. At the same time, a large amount of carbon dioxide gas is bound in the main board body by a large number of balloons, and the characteristic of carbon dioxide gas not being easily dissipated after absorbing heat can be used to further improve the thermal insulation performance of the thermal insulation extruded board during actual use.

Description

Technical Field

[0001] The invention relates to the technical field of thermal insulation extruded board materials, and in particular to a lightweight and environment-friendly thermal insulation extruded board for construction and a preparation method thereof. Background Art

[0002] Thermal insulation extruded board is a lightweight board with long-lasting thermal insulation performance. It uses polystyrene resin as the main material and is combined with other polymers through heating and extrusion. The thermal insulation extruded board has many closed bubble structures, which makes it have strong bearing pressure, good waterproof performance, chemical corrosion resistance and strong anti-aging ability. It is widely used in building insulation and waterproofing and moisture-proofing in humid environments.

[0003] The thermal insulation extruded boards in the prior art are all made of extruded polystyrene materials. The large amount of polystyrene materials used will not only lead to the high cost use of polystyrene resins in the preparation and production process, but also lead to the simple overall structure of the prepared and produced thermal insulation extruded boards. During the actual use of the thermal insulation extruded boards, they can only be used for thermal insulation by relying on the characteristics of the polystyrene after extrusion and the closed bubble structure formed in the thermal insulation extruded boards, making it difficult to further improve the thermal insulation performance of the thermal insulation extruded boards.

[0004] Therefore, a lightweight and environmentally friendly thermal insulation extruded board for building and a preparation method thereof are proposed to solve some problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that thermal insulation extruded boards use a single material, have a simple structure, use a large amount of polystyrene resin during preparation and production, resulting in high cost of polystyrene resin, and difficulty in further improving thermal insulation performance. A lightweight and environmentally friendly thermal insulation extruded board for construction and a preparation method thereof are proposed.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions:

[0007] A lightweight and environmentally friendly thermal insulation extruded board for construction, comprising a main board body, an interlayer member embedded in the interior of the main board body, and the interlayer member comprising a composite film fixedly laid in the middle position of the main board body, and a plurality of evenly distributed balloons are arranged in the composite film, an air inlet hole is opened in the middle position of the top of the balloon, a sealing film for sealing the air inlet hole is fixedly connected to the upper inner end wall of the balloon, and the balloon is filled with carbon dioxide gas.

[0008] Preferably, the balloons in two adjacent horizontal rows are staggered left-right on the composite film, and the balloons in two adjacent vertical rows are staggered front-back on the composite film.

[0009] Preferably, the composite film is provided with a plurality of evenly distributed through holes, and a single through hole is arranged at the center of four balloons at a close distance.

[0010] Preferably, a method for preparing a lightweight and environmentally friendly heat-insulating extruded board for building comprises: continuously introducing a sandwich member into an extrusion mold, and continuously injecting a foamed plastic into the extrusion mold through an extruder, so that the foamed plastic is wrapped around the outside of the sandwich member in the extrusion mold, and simultaneously, carbon dioxide gas is filled into the balloon, and then the balloon is led out after cooling and shaping, so as to form a heat-insulating extruded board;

[0011] The extrusion mold includes a mold body, and the left end of the mold body is arranged as a through discharge port, a longitudinally arranged feed trough is opened in the middle position of the right end wall of the mold body, a feed pipe is fixedly connected to the back side of the right end of the mold body, a bearing platform is installed on the top of the mold body, and an air box is fixedly mounted on the bearing platform, a first connecting pipe is fixedly connected to the air box, a lifting platform arranged below the air box is movably installed above the bearing platform, a plurality of vertically arranged insert tubes are fixedly installed on the lifting platform, and a vertically arranged needle tube is fixedly connected to the bottom of the insert tube, the needle tube is arranged corresponding to the air inlet, a sleeve movably sleeved on the outer side of the upper end of the insert tube is fixedly connected to the bottom of the air box, a plurality of vertically arranged electric telescopic rods are fixedly installed on the air box, and the telescopic ends of the electric telescopic rods are fixedly connected to the lifting platform, and auxiliary cooling pipes arranged on the left side of the bearing platform are fixedly installed on the upper and lower end walls of the mold body.

[0012] Preferably, in the process of filling the balloon with carbon dioxide gas through the needle tube, the needle tube follows the interlayer component and moves synchronously to the left in the mold body. A through groove running through the top and bottom is provided on the top of the mold body. The support platform is slidably installed in the through groove. A transversely arranged electric slide rail is fixedly installed on the top of the mold body. The support platform is fixedly connected to the moving end of the electric slide rail. Closing plates are fixedly installed on the left and right sides of the bottom of the support platform. A shallow groove matching the sealing plate is provided on the top inner end wall of the mold body.

[0013] Preferably, the outer end of the first connecting pipe extends horizontally to the left, and a second connecting pipe movably sleeved on the outside of the first connecting pipe is fixedly mounted on the front side of the mold body.

[0014] Preferably, two longitudinally arranged feed channels are opened at the right end of the mold body, and the two feed channels are symmetrically arranged on the upper and lower sides of the feed trough. The rear ends of the two feed channels are connected with the feed pipe. Evenly distributed connecting holes are opened on the inner end wall of the feed channel, and the connecting holes are connected with the interior of the mold body. A first spiral conveying roller is rotatably installed in the feed channel, and first gears that mesh with each other are fixedly installed at the front ends of the two first spiral conveying rollers.

[0015] Preferably, the air inlet and the sealing film are pre-arranged on the first high temperature resistant film, and the glue coating mechanism is used to sequentially apply glue on the lower surface of the first high temperature resistant film and the upper surface of the second high temperature resistant film, and the composite film is formed by rolling after bonding, and the balloon is automatically formed in the composite film by limiting the glue coating position, and then the through holes are evenly opened on the composite film by the rolling cutting mechanism;

[0016] The glue coating mechanism includes a base arranged on the right side of the mold body, and two first rollers symmetrically arranged up and down are rotatably installed on the right side of the base, circular grooves corresponding to the balloons are evenly opened on the first rollers, and first gear rings that mesh with each other are fixed around the ends of the two first rollers. Two rollers symmetrically arranged up and down are rotatably installed in the middle position of the base, and the symmetry axes of the two first rollers and the symmetry axes of the two rollers are in the same horizontal plane.

[0017] Preferably, the rolling cutting mechanism includes a second roller and a third roller rotatably mounted on the left side of the base, the second roller and the third roller are respectively arranged on the upper and lower sides of the composite film, the second roller is evenly fixed with rolling cutting heads corresponding to the through holes, the third roller is evenly opened with rolling cutting grooves corresponding to the rolling cutting heads, and second gear rings that are meshed with each other are fixed around the ends of the second roller and the third roller.

[0018] Preferably, the interior of the third roller is set as a hollow structure, the rolling groove is connected to the hollow structure inside the third roller, one end of the back side of the third roller extends to the outside of the base, one end of the back side of the third roller is set as a through structure, and the second spiral conveying roller is rotatably installed in the third roller, and the front end of the second spiral conveying roller is transmission-connected to the second roller.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. In the present invention, by embedding the interlayer into the main board body, the numerous balloons filled with carbon dioxide gas and expanded are evenly distributed in the main board body, which can effectively reduce the amount of raw materials used to form the main board body, and can reduce the cost of processing and producing the thermal insulation extruded board to a certain extent, and make it lighter. In addition, by using a large amount of carbon dioxide gas, the negative impact of carbon dioxide gas on the environment can be effectively reduced, making the thermal insulation extruded board more environmentally friendly. At the same time, a large amount of carbon dioxide gas is bound in the main board body by numerous balloons. With the characteristic that carbon dioxide gas is not easy to dissipate after absorbing heat, the thermal insulation performance of the thermal insulation extruded board in actual use can be further improved.

[0021] 2. In the present invention, by evenly opening a plurality of through holes between a plurality of balloons on the composite film, when the interlayer is embedded in the middle position of the main board body, the upper and lower layers of the main board body can be connected through the through holes, which is beneficial to improving the structural stability of the thermal insulation extruded board;

[0022] 3. In the present invention, the sandwich component is continuously transported into the mold body through the feed trough, and the extruded raw material is continuously fed into the mold body through the feed pipe, so that the sandwich component and the extruded raw material move synchronously in the mold body and are integrally formed, which is conducive to the convenient and efficient production of thermal insulation extruded boards. At the same time, in the process of the extruded raw material wrapping the sandwich component, carbon dioxide gas is quickly injected into the balloon through the needle tube inserted downward, so that the sandwich component can be continuously introduced into the mold body through the feed trough in a flat structure, which is conducive to ensuring the sealing convenience at the feed trough, avoiding the leakage of the extruded raw material through the feed trough, and improving the production convenience and stability of the present application to a certain extent;

[0023] 4. In the present invention, by slidingly installing the bearing platform in the through groove, and driving the bearing platform to move the needle tube with the help of an electric slide rail, and coordinating with an electric telescopic rod to control the needle tube to move up and down, the needle tube can maintain a state of synchronous movement with the corresponding balloon in the sandwich member in the mold body, and the carbon dioxide gas is quickly and stably filled in the process of continuous movement and extrusion molding of the thermal insulation extruded board, so that the thermal insulation extruded board with the sandwich member embedded inside can be continuously and stably produced and molded, which is conducive to ensuring production efficiency;

[0024] 5. In the present invention, the upper and lower feed channels are connected to the upper and lower sides of the sandwich member in the mold body through a large number of evenly distributed connection holes, respectively, and the axial conveying force generated by the continuous rotation of the first spiral conveying roller in the feed channel is coordinated, so that the extruded raw material can be fully and evenly filled in the mold body, so that the extruded raw material can fully and comprehensively wrap the sandwich member, which is conducive to ensuring the stability of the thermal insulation extruded board prepared by the method, and is conducive to ensuring the quality of the thermal insulation extruded board after production and molding;

[0025] 6. In the present invention, by arranging the gluing mechanism and the rolling cutting mechanism on the right side of the mold body, with the help of the cooperation of the gluing mechanism and the rolling cutting mechanism, the production of the sandwich parts can be realized continuously and stably, the production route is integrated, and the technical effect of producing and using the sandwich parts at the same time is achieved, which can greatly reduce the cost consumption of the sandwich parts in storage and transportation, and thus can effectively reduce the cost of preparing the thermal insulation extruded board in this application using this method. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 This is a disassembled diagram of the thermal insulation extruded board of the present invention;

[0028] Figure 2A three-dimensional diagram of a heat-insulating extruded board of the present invention;

[0029] Figure 3 For the present invention Figure 2 Front view of the structure in section;

[0030] Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle;

[0031] Figure 5 For the present invention Figure 2 A bottom-up cross-section of the middle structure;

[0032] Figure 6 It is a three-dimensional diagram of the preparation of the heat insulation extruded board of the present invention;

[0033] Figure 7 For the present invention Figure 6 A top view of the structure in the middle;

[0034] Figure 8 For the present invention Figure 7 Sectional view at the middle BB;

[0035] Fig. 9 For the present invention Figure 7 Sectional view at CC;

[0036] Fig.10 For the present invention Figure 7 Sectional view at DD in the middle;

[0037] Fig.11 The figure is a disassembled diagram of the extrusion die of the present invention;

[0038] Fig.12 A three-dimensional diagram of the structure on the supporting platform of the present invention;

[0039] Fig.13 is a three-dimensional diagram of the first spiral conveying roller and the first gear of the present invention;

[0040] Fig.14 A three-dimensional diagram of the auxiliary cooling pipe of the present invention;

[0041] Fig.15 It is a stereoscopic view of the gluing mechanism and the rolling cutting mechanism of the present invention from the front view;

[0042] Fig.16 For the present invention Fig.15 Stereoscopic image of the structure from the back.

[0043] Serial number in the picture:

[0044] 1. Main body; 101. Composite film; 102. Balloon; 103. Air inlet; 104. Sealing film; 105. Through hole;

[0045] 2. mold body; 201. feed trough; 202. feed pipe;

[0046] 3. Carrying platform; 301. Air box; 302. First connecting pipe; 303. Second connecting pipe; 304. Lifting platform; 305. Cannula; 306. Needle tube; 307. Casing; 308. Electric telescopic rod;

[0047] 4. Through slot; 401. Electric slide rail; 402. Sealing plate; 403. Shallow slot;

[0048] 5. Feed channel; 501. Connecting hole; 502. First spiral conveying roller; 503. First gear;

[0049] 6. Auxiliary cooling pipe;

[0050] 7. A first high temperature resistant film; 701. A second high temperature resistant film;

[0051] 8. base; 801. first roller; 802. circular groove; 803. first gear ring; 804. roller;

[0052] 9. Second roller; 901. Rolling cutting head; 902. Third roller; 903. Rolling cutting groove; 904. Second gear ring; 905. Second spiral conveying roller. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0054] Example 1: This example provides a lightweight and environmentally friendly building insulation extruded board, see Figure 1 - Figure 5 Specifically, it includes a main board body 1, an interlayer member is embedded in the interior of the main board body 1, and the interlayer member includes a composite film 101 fixedly laid in the middle position of the main board body 1, and a plurality of evenly distributed balloons 102 are arranged in the composite film 101, an air inlet hole 103 is opened in the middle position of the top of the balloon 102, a sealing film 104 for sealing the air inlet hole 103 is fixedly connected to the upper inner end wall of the balloon 102, and the balloon 102 is filled with carbon dioxide gas.

[0055] The main board body 1 is made of polystyrene as the main raw material, combined with a variety of additives, and is formed by one-time extrusion by an extruder. It has a honeycomb closed-cell structure. In the thermal insulation extruded board, by embedding the interlayer into the main board body 1, a large number of balloons 102 that are expanded due to filling with carbon dioxide gas are evenly distributed in the main board body 1, which can effectively reduce the amount of raw materials used to form the main board body 1. It can not only reduce the cost of processing and producing the thermal insulation extruded board to a certain extent, but also further reduce the overall weight of the thermal insulation extruded board, making it lighter. Moreover, through the large-scale use of carbon dioxide gas, the negative impact of carbon dioxide gas on the environment can be effectively reduced, making the thermal insulation extruded board lighter and more environmentally friendly. At the same time, a large amount of carbon dioxide gas is bound in the main board body 1 by a large number of balloons 102. With the help of the characteristic that carbon dioxide gas is not easily dissipated in the form of heat radiation after absorbing heat, the thermal insulation performance of the thermal insulation extruded board during actual use can be greatly improved, which is conducive to improving its quality to a certain extent.

[0056] In the specific implementation process, Figure 5 As shown, the balloons 102 in two adjacent horizontal rows are staggered left and right on the composite film 101, and the balloons 102 in two adjacent vertical rows are staggered front and back on the composite film 101. In the thermal insulation extruded board, since the balloons 102 in two adjacent horizontal rows are staggered, and the balloons 102 in two adjacent vertical rows are also staggered, four balloons 102 at close distances are distributed on the four corners of the same square, so that many balloons 102 can be more compactly and evenly distributed in the main board body 1, which can further reduce the use of raw materials for the main board body 1 when producing the thermal insulation extruded board, and can also further increase the amount of carbon dioxide gas stored in the thermal insulation extruded board, so that the thermal insulation extruded board is lighter and more environmentally friendly, and has stronger thermal insulation performance.

[0057] In the specific implementation process, Figure 1 , Figure 3 and Figure 5 As shown, the composite film 101 is provided with numerous evenly distributed through holes 105, and a single through hole 105 is arranged at the center of four balloons 102 at a close distance. When the thermal insulation extruded board is in use, by evenly opening numerous through holes 105 between the multiple balloons 102 on the composite film 101, when the interlayer is embedded in the middle position of the main board body 1, the upper and lower layers of the main board body 1 can be connected through the through hole 105, which is beneficial to improving the structural stability of the thermal insulation extruded board.

[0058] Example 2: Based on Example 1, this example also provides a method for preparing a lightweight and environmentally friendly building thermal insulation extruded board, see Figure 1 - Fig.16Specifically, the sandwich component is continuously introduced into the extrusion mold, and the foamed plastic is continuously injected into the extrusion mold through the extruder, so that the foamed plastic is wrapped around the outside of the sandwich component in the extrusion mold, and carbon dioxide gas is simultaneously filled into the balloon 102, and then the balloon is led out after cooling and shaping, so as to form a heat-insulating extruded board;

[0059] The extrusion mold includes a mold body 2, and the left end of the mold body 2 is set as a through discharge port, a longitudinally arranged feed groove 201 is opened in the middle position of the right end wall of the mold body 2, and a feed pipe 202 is fixedly connected to the back of the right end of the mold body 2, a bearing platform 3 is installed on the top of the mold body 2, and an air box 301 is fixedly mounted on the bearing platform 3, and a first connecting pipe 302 is fixedly connected to the air box 301, and a lifting platform 304 arranged below the air box 301 is movably installed above the bearing platform 3, and a lifting platform 304 is fixedly installed on the lifting platform 304. There are multiple vertically arranged insert tubes 305, and the bottom of the insert tube 305 is fixedly connected to a vertically arranged needle tube 306, and the needle tube 306 is arranged corresponding to the air inlet 103. The bottom of the air box 301 is fixedly connected to a sleeve 307 that is movably sleeved on the outer side of the upper end of the insert tube 305. Multiple vertically arranged electric telescopic rods 308 are fixedly installed on the air box 301, and the telescopic ends of the electric telescopic rods 308 are fixedly connected to the lifting platform 304. Auxiliary cooling pipes 6 arranged on the left side of the supporting platform 3 are fixedly installed on the upper and lower end walls of the mold body 2.

[0060] When using this method to prepare thermal insulation extruded boards, the sandwich component continuously enters the mold body 2 from right to left through the feed trough 201 and stably moves in the middle position of the mold body 2. Synchronously, the extruder is connected to the feed pipe 202, and the extruder continuously feeds the raw materials required to form the main body 1 into the mold body 2 through the feed pipe 202. The extruded raw materials and the sandwich component fed into the mold body 2 move synchronously from right to left in the mold body 2. During the movement, the extruded raw materials are filled in the mold body 2 and are fully wrapped around the outside of the sandwich component. During the process of the sandwich component entering the mold body 2 through the feed trough 201, the carbon dioxide gas has not yet been filled into the balloon 102. At this time, the sandwich component presents a flat structure, and the inner size of the feed trough 201 is adapted to the outer size of the sandwich component in the flat state. They fit tightly during the entry process to ensure relative sealing here.

[0061] The gas box 301 is connected to an external carbon dioxide gas supply device through the first connecting pipe 302. When the extruded raw material is gradually wrapped around the outside of the sandwich component, the electric telescopic rod 308 is powered on and started, and its telescopic end drives the lifting platform 304 to move downward, so that the needle tube 306 vertically fixed at the lower end of the cannula 305 passes through the air inlet hole 103 and is inserted into the balloon 102. When the needle tube 306 is inserted downward into the balloon 102 through the air inlet hole 103, the sealing film 104 will be pushed open. At this time, the external carbon dioxide gas supply device quickly fills the balloon 102 with carbon dioxide gas through the connection between the gas box 301, the sleeve 307, the cannula 305 and the needle tube 306. In the mold main body 2, the operation of filling the balloon 102 with carbon dioxide gas is completed. Due to the inflation and expansion of the balloon 102, it can occupy a large amount of molding space of the main board body 1, thereby reducing the use of related raw materials after the main board body 1 is formed.

[0062] After the balloon 102 is filled with enough carbon dioxide gas, the electric telescopic rod 308 controls the lifting platform 304 to move upward in the opposite direction, controls the needle tube 306 to move up and be pulled out from the air inlet hole 103, and withdraws from the molding space inside the mold body 2, and the needle tube 306 is lost. The sealing film 104 resets from the inside of the balloon 102 and fits the air inlet hole 103 again to block the air inlet hole 103, cooperates with the outer extruded raw material to fill and form the main body 1, and then adheres and solidifies, thereby reinforcing the tightness of the sealing of the air inlet hole 103 and ensuring the stability of the carbon dioxide gas filling in the balloon 102. The sealing film 104 cooperates with the air inlet hole 103 to form a structure similar to a one-way valve. During the subsequent continuous movement process, the auxiliary cooling pipe 6 is cooperated to cool the extruded raw material in the mold body 2 to increase its cooling and shaping speed, so that the formed thermal insulation extruded board is discharged outward through the discharge port at the left end of the mold body 2, and cooperates with the conveyor belt set at the discharge port to carry out stable discharge and transportation.

[0063] When using this method to prepare and produce the above-mentioned thermal insulation extruded board, the interlayer component is continuously transported to the mold body 2 through the feed trough 201, and the extruded raw material is continuously fed into the mold body 2 through the feed pipe 202, so that the interlayer component and the extruded raw material move synchronously in the mold body 2 and are integrally formed, which is conducive to the convenient and efficient production of the thermal insulation extruded board in the present application. At the same time, in the process of the extruded raw material wrapping the interlayer component, carbon dioxide gas is quickly injected into the balloon 102 through the downwardly inserted needle tube 306, so that the interlayer component can be continuously introduced into the mold body 2 through the feed trough 201 in a flat structure, which is conducive to ensuring the sealing convenience at the feed trough 201 and avoiding the leakage of the extruded raw material through the feed trough 201, which improves the production convenience and stability of the present application to a certain extent.

[0064] In the specific implementation process, Figure 8 , Fig.11 and Fig.12As shown, during the process of filling the balloon 102 with carbon dioxide gas through the needle tube 306, the needle tube 306 follows the interlayer component and moves synchronously to the left in the mold body 2. A through groove 4 that runs through the top and bottom is provided on the top of the mold body 2. The support platform 3 is slidably installed in the through groove 4. A transversely arranged electric slide rail 401 is fixedly installed on the top of the mold body 2. The support platform 3 is fixedly connected to the moving end of the electric slide rail 401. Closing plates 402 are fixedly installed on the left and right sides of the bottom of the support platform 3. A shallow groove 403 that matches the closing plate 402 is provided on the inner end wall of the top of the mold body 2. The outer end of the first connecting pipe 302 extends horizontally to the left, and the front of the mold body 2 is fixedly installed with a second connecting pipe 303 that is movably sleeved on the outside of the first connecting pipe 302.

[0065] In the process of preparing the heat-insulating extruded board using the method, when the needle tube 306 is used to fill the balloon 102 in the heat-insulating extruded board being formed in the mold body 2 with carbon dioxide gas, the electric slide rail 401 is powered on and started to drive the support platform 3 fixedly connected to its moving end to move from right to left. Driven by the support platform 3, the needle tube 306 keeps moving synchronously with the corresponding balloon 102 in the sandwich part in the mold body 2, and the carbon dioxide gas can be filled in the process of continuous movement and extrusion molding of the heat-insulating extruded board. Fast and stable filling operation, after a batch of balloons 102 are inflated, the needle tube 306 moves up and out of the molding space in the mold body 2. At this time, the electric slide rail 401 will drive the support platform 3 to move quickly to the right in the opposite direction to prepare for the inflation operation of the next batch of balloons 102. By controlling the left and right movement of the needle tube 306, the carbon dioxide gas filling operation in the balloon 102 can be completed during the continuous movement, so that the thermal insulation extruded board with interlayer parts embedded inside in the present application can be continuously and stably produced and molded, which is beneficial to ensuring production efficiency.

[0066] In the present application, since the second connecting pipe 303 is slidably connected to the first connecting pipe 302, and the relative sliding direction of the second connecting pipe 303 and the first connecting pipe 302 is the same as the moving direction of the supporting platform 3, the stability of the supply of carbon dioxide gas to the gas box 301 can be effectively guaranteed. In addition, during the sliding process of the supporting platform 3, with the help of the cooperation of the sealing plate 402 and the shallow groove 403, the through groove 4 is always in a closed state, which prevents the extruded raw materials in the mold body 2 from leaking out through the through groove 4 during the movement of the supporting platform 3, which is beneficial to ensure the stability of the method when preparing thermal insulation extruded boards.

[0067] In the specific implementation process, Fig. 9 , Fig.11 and Fig.13As shown, two longitudinally arranged feed channels 5 are provided at the right end of the mold body 2, and the two feed channels 5 are symmetrically arranged on the upper and lower sides of the feed trough 201. The rear ends of the two feed channels 5 are connected with the feed pipe 202, and the inner end walls of the feed channels 5 are provided with evenly distributed connecting holes 501, and the connecting holes 501 are connected with the inside of the mold body 2. A first spiral conveying roller 502 is rotatably installed in the feed channel 5, and first gears 503 that mesh with each other are fixedly installed at the front ends of the two first spiral conveying rollers 502.

[0068] When the method is used to prepare the thermal insulation extruded board, the end of one of the first spiral conveying rollers 502 is externally connected to a driving unit, which can be a servo motor. Under the drive of the driving unit, the two first gears 503 are meshed and driven, so that the two first spiral conveying rollers 502 can rotate continuously in the upper and lower feeding channels 5 respectively. During the production process, the extruded material enters the feeding channel 5 symmetrically opened in the upper and lower parts through the connection of the feeding pipe 202. With the help of the axial conveying generated by the rotation of the first spiral conveying roller 502 in the feeding channel 5, the extruded raw material can be evenly and comprehensively distributed in the longitudinally arranged feeding channel 5. Since the numerous connecting holes 501 opened in the upper and lower feeding channels 5 are respectively connected to the upper and lower sides of the sandwich part in the mold body 2, the extruded raw material entering the mold body 2 through the two feeding channels 5 can be fully and evenly filled in the mold body 2, so that the extruded raw material can fully and comprehensively wrap the sandwich part, which is conducive to ensuring the stability when the thermal insulation extruded board is prepared by the method, and is conducive to ensuring the quality of the thermal insulation extruded board after production and molding.

[0069] In the specific implementation process, Figure 6 - Figure 8 and Fig.15 - Fig.16 As shown, the glue coating mechanism sequentially applies glue on the lower surface of the first high temperature resistant film 7 and the upper surface of the second high temperature resistant film 701, and after bonding, the composite film 101 is formed by rolling, and the balloon 102 is automatically formed in the composite film 101 by limiting the glue coating position, and then the through holes 105 are evenly opened on the composite film 101 by the rolling cutting mechanism;

[0070] The glue coating mechanism includes a base 8 arranged on the right side of the mold body 2, and two first rollers 801 symmetrically arranged in upper and lower directions are rotatably installed on the right side of the base 8. Circular grooves 802 corresponding to the balloon 102 are evenly opened on the first rollers 801, and mutually meshing first gear rings 803 are fixed around the ends of the two first rollers 801. Two rollers 804 symmetrically arranged in upper and lower directions are rotatably installed in the middle position of the base 8, and the symmetry axes of the two first rollers 801 and the symmetry axes of the two rollers 804 are in the same horizontal plane.

[0071] When this method is used to prepare thermal insulation extruded panels, the interlayer can be directly generated before entering the mold body 2 through the cooperation of the glue coating mechanism and the rolling cutting mechanism. The first high temperature resistant film 7 is wound from right to left on the top of the upper first roller 801 and on the bottom of the upper roller 804, and the second high temperature resistant film 701 is wound from right to left on the bottom of the lower first roller 801 and on the top of the lower roller 804. The outer surface of the first roller 801 is evenly adhered to glue, and the glue can be continuously replenished. Through the continuous rolling of the upper and lower first rollers 801, the glue is applied to the lower surface of the first high temperature resistant film 7 and the upper surface of the second high temperature resistant film 701. The ends of the upper and lower first rollers 801 surround the fixed first tooth ring. 803 are meshed with each other, which can ensure the synchronous stability of the upper and lower first rollers 801 during rotation, and is conducive to ensuring the stability of the glue coating mechanism in brushing glue on the first high temperature resistant film 7 and the second high temperature resistant film 701. Since many evenly distributed circular grooves 802 are provided on the first roller 801, during the rolling contact process, the positions corresponding to these circular grooves 802 cannot be coated with glue on the first high temperature resistant film 7 and the second high temperature resistant film 701, thereby forming corresponding glue-free areas. When the first high temperature resistant film 7 and the second high temperature resistant film 701 are rolled by the upper and lower rollers 804 to form a composite film 101, the glue-free areas on the first high temperature resistant film 7 and the second high temperature resistant film 701 cannot be adhered to form a balloon 102.

[0072] In the specific implementation process, Fig.10 and Fig.15 As shown, the rolling mechanism includes a second roller 9 and a third roller 902 rotatably mounted on the left side of the base 8. The second roller 9 and the third roller 902 are respectively arranged on the upper and lower sides of the composite film 101. The second roller 9 is evenly fixed with rolling heads 901 arranged corresponding to the through holes 105. The third roller 902 is evenly provided with rolling grooves 903 arranged corresponding to the rolling heads 901. The ends of the second roller 9 and the third roller 902 are surrounded and fixed with second toothed rings 904 that mesh with each other. In the process of preparing the sandwich component, the second roller 9 and the third roller 902 are kept stable by virtue of the meshing of the second toothed rings 904 fixed around the ends of the second roller 9 and the third roller 902. In a state of synchronous relative rotation, the composite film 101 generated by the gluing mechanism is inserted between the second roller 9 and the third roller 902. During the synchronous relative rotation of the second roller 9 and the third roller 902, with the help of the engagement of the rolling cutting head 901 on the second roller 9 and the rolling cutting groove 903 on the third roller 902, evenly distributed through holes 105 are opened in an orderly manner on the composite film 101. The gluing mechanism and the rolling cutting mechanism cooperate with each other to continuously and stably realize the production of the sandwich parts, integrate the production route, and achieve the effect of using the sandwich parts while producing. There is no need to store and transport the sandwich parts, which can effectively reduce the cost of preparing the thermal insulation extruded board in this application using this method.

[0073] In the specific implementation process, Fig.15 and Fig.16 As shown, the interior of the third roller 902 is set as a hollow structure, the rolling groove 903 is connected to the hollow structure inside the third roller 902, one end of the back side of the third roller 902 extends to the outside of the base 8, and one end of the back side of the third roller 902 is set as a through structure. A second spiral conveying roller 905 is rotatably installed in the third roller 902, and the front end of the second spiral conveying roller 905 is transmission-connected to the second roller 9. When the method is used to prepare the heat insulation extruded board, a driving unit is set on the outside of the base 8. The driving unit can be a servo motor, and its driving shaft is connected to the third roller 90 2, when the second roller 9 and the third roller 902 rotate relative to each other, the rolling head 901 and the rolling groove 903 are engaged with each other. In the process of opening the through hole 105 on the composite film 101, the rolled and cut residues will fall into the hollow structure of the third roller 902 through the rolling groove 903, and then be transported backward by the axial conveying force generated when the second spiral conveying roller 905 rotates relative to the third roller 902, and be discharged through the through opening opened at the rear end of the third roller 902, which is conducive to ensuring the stability of the discharge of the residues.

[0074] Specifically, the working principle and operation method of the present invention are as follows:

[0075] The first high temperature resistant film 7 and the second high temperature resistant film 701 are introduced into the glue coating mechanism. The first high temperature resistant film 7 is preset with an air inlet 103 and a sealing film 104. The glue is evenly applied to the first high temperature resistant film 7 and the second high temperature resistant film 701 on the side close to each other through the relative rotation of the upper and lower first rollers 801. With the help of the circular groove 802, a glue-free area is formed on the first high temperature resistant film 7 and the second high temperature resistant film 701. With the rolling of the upper and lower rollers 804, the first high temperature resistant film 7 and the second high temperature resistant film 701 are bonded to form a composite film 101. , and the no-glue area forms a balloon 102, and the composite film 101 is introduced into the rolling cutting mechanism. Through the rotation of the second roller 9 and the third roller 902, the numerous rolling cutting heads 901 and the rolling cutting grooves 903 are continuously engaged and separated during the rotation of the second roller 9 and the third roller 902, and evenly distributed through holes 105 are opened on the composite film 101 to generate a sandwich component. The residual material rolled off the composite film 101 falls into the hollow structure in the third roller 902, and can be moved backward and exported at any time with the help of the axial conveying force generated by the rotation of the second spiral conveying roller 905 relative to the third roller 902;

[0076] The sandwich part enters the middle position of the mold body 2 through the feed groove 201, and the extruded raw material enters the upper and lower feed channels 5 through the feed pipe 202, and is fully and evenly dispersed in the feed channel 5 with the help of the axial conveying force generated by the continuous rotation of the first spiral conveying roller 502, and then enters the mold body 2 through the numerous connecting holes 501 evenly distributed in the upper and lower feed channels 5, and is wrapped around the upper and lower sides of the sandwich part. During the extrusion movement, under the push of the electric telescopic rod 308, the needle tube 306 moves downward through the air inlet hole 103 and is inserted into the corresponding balloon 102, and carbon dioxide gas is quickly filled into the balloon 102, so that the balloon 102 is inflated and expanded, and supported in the main board body 1 to be formed. When the tube 306 is inserted into the corresponding balloon 102 for filling with carbon dioxide gas, the electric slide 401 will control the support platform 3 to drive the needle tube 306 to move to the left, so that the needle tube 306 maintains a synchronous movement state with the balloon 102. When the inflation is completed, the needle tube 306 moves up and exits the molding space in the mold body 2. The electric slide 401 will control the support platform 3 to drive the needle tube 306 to move to the right, and after a quick reset, it will prepare for the inflation operation in the next batch of balloons 102. The thermal insulation extruded board is formed in the mold body 2, and is quickly cooled and shaped with the assistance of the auxiliary cooling tube 6, and finally discharged through the discharge port at the left end of the mold body 2, and the conveyor belt arranged at the discharge port moves continuously to carry out continuous and stable product production.

[0077] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lightweight and environmentally friendly heat-insulating extruded board for construction, comprising a main board body (1), characterized in that: The main body (1) is embedded with a sandwich component, and the sandwich component includes a composite film (101) fixedly laid in the middle position of the main body (1), and a plurality of uniformly distributed balloons (102) are arranged in the composite film (101), an air inlet (103) is opened in the middle position of the top of the balloon (102), and a sealing film (104) for sealing the air inlet (103) is fixedly connected to the upper inner end wall of the balloon (102), and the balloon (102) is filled with carbon dioxide gas; The composite film (101) is formed by gluing a first high temperature resistant film (7) and a second high temperature resistant film (701). During the gluing process, the glue application position on the first high temperature resistant film (7) and the second high temperature resistant film (701) is restricted, so that a plurality of evenly distributed and mutually corresponding glue-free areas are formed on the first high temperature resistant film (7) and the second high temperature resistant film (701). After the first high temperature resistant film (7) and the second high temperature resistant film (701) are bonded, the corresponding glue-free areas thereon automatically form a balloon (102).

2. A lightweight and environmentally friendly thermal insulation extruded board for construction according to claim 1, characterized in that: The balloons (102) in two adjacent horizontal rows are arranged on the composite film (101) in a staggered manner from left to right, and the balloons (102) in two adjacent vertical rows are arranged on the composite film (101) in a staggered manner from front to back.

3. A lightweight and environmentally friendly thermal insulation extruded board for construction according to claim 2, characterized in that: The composite film (101) is provided with a plurality of evenly distributed through holes (105), and a single through hole (105) is arranged at the center of four balloons (102) at a close distance.

4. A method for preparing a lightweight and environmentally friendly thermal insulation extruded board for construction according to any one of claims 1 to 3, characterized in that: The sandwich component is continuously introduced into the extrusion mold, and the foamed plastic is continuously injected into the extrusion mold through an extruder, so that the foamed plastic is wrapped around the outside of the sandwich component in the extrusion mold, and carbon dioxide gas is simultaneously filled into the balloon (102), and the balloon is led out after cooling and shaping, so as to form a heat-insulating extruded board; The extrusion mold comprises a mold body (2), and the left end of the mold body (2) is provided with a through discharge port, a longitudinally arranged feed groove (201) is provided in the middle position of the right end wall of the mold body (2), a feed pipe (202) is fixedly connected to the back of the right end of the mold body (2), a bearing platform (3) is installed on the top of the mold body (2), and a gas box (301) is fixedly mounted on the bearing platform (3), a first connecting pipe (302) is fixedly connected to the gas box (301), and a lifting platform (304) arranged below the gas box (301) is movably installed above the bearing platform (3), and a lifting platform (304) is fixedly mounted on the lifting platform (304). A plurality of vertically arranged insert tubes (305) are fixedly installed, and the bottom of the insert tube (305) is fixedly connected to a vertically arranged needle tube (306), and the needle tube (306) is arranged corresponding to the air inlet (103). The bottom of the air box (301) is fixedly connected to a sleeve (307) movably sleeved on the outer side of the upper end of the insert tube (305). A plurality of vertically arranged electric telescopic rods (308) are fixedly installed on the air box (301), and the telescopic ends of the electric telescopic rods (308) are fixedly connected to the lifting platform (304). Auxiliary cooling pipes (6) arranged on the left side of the bearing platform (3) are fixedly installed on the upper and lower end walls of the mold body (2).

5. The method for preparing a lightweight and environmentally friendly thermal insulation extruded board for construction according to claim 4, characterized in that: During the process of filling the balloon (102) with carbon dioxide gas through the needle tube (306), the needle tube (306) follows the interlayer component and moves synchronously to the left in the mold body (2). A through groove (4) extending from top to bottom is provided on the top of the mold body (2). The support platform (3) is slidably installed in the through groove (4). A transversely arranged electric slide rail (401) is fixedly installed on the top of the mold body (2). The support platform (3) is fixedly connected to the movable end of the electric slide rail (401). Sealing plates (402) are fixedly installed on the left and right sides of the bottom of the support platform (3). A shallow groove (403) adapted to the sealing plate (402) is provided on the inner end wall of the top of the mold body (2).

6. The method for preparing a lightweight and environmentally friendly thermal insulation extruded board for construction according to claim 4, characterized in that: The outer end of the first connecting pipe (302) extends horizontally to the left, and a second connecting pipe (303) movably sleeved on the outside of the first connecting pipe (302) is fixedly mounted on the front side of the mold body (2).

7. The method for preparing a lightweight and environmentally friendly thermal insulation extruded board for construction according to claim 4, characterized in that: The right end of the mold body (2) is provided with two longitudinally arranged feed channels (5), the two feed channels (5) are symmetrically arranged on the upper and lower sides of the feed trough (201), the rear ends of the two feed channels (5) are connected to the feed pipe (202), the inner end wall of the feed channel (5) is provided with evenly distributed connection holes (501), and the connection holes (501) are connected to the inside of the mold body (2), a first spiral conveying roller (502) is rotatably installed in the feed channel (5), and first gears (503) that mesh with each other are fixedly installed at the front ends of the two first spiral conveying rollers (502).

8. The method for preparing a lightweight and environmentally friendly thermal insulation extruded board for construction according to claim 4, characterized in that: The air inlet hole (103) and the sealing film (104) are pre-arranged on the first high temperature resistant film (7), and glue is applied in order on the lower surface of the first high temperature resistant film (7) and the upper surface of the second high temperature resistant film (701) by a glue coating mechanism, and after bonding, the composite film (101) is formed by rolling, and the balloon (102) is automatically formed in the composite film (101) by limiting the glue coating position, and then the through hole (105) is evenly opened on the composite film (101) by a rolling cutting mechanism; The glue coating mechanism comprises a base (8) arranged on the right side of the mold body (2), and two first rollers (801) symmetrically arranged in upper and lower directions are rotatably installed on the right side of the base (8), and circular grooves (802) corresponding to the balloon (102) are evenly opened on the first rollers (801), and mutually meshing first toothed rings (803) are fixed around the ends of the two first rollers (801), and two rollers (804) symmetrically arranged in upper and lower directions are rotatably installed in the middle position of the base (8), and the symmetry axes of the two first rollers (801) and the symmetry axes of the two rollers (804) are in the same horizontal plane.

9. The method for preparing a lightweight and environmentally friendly thermal insulation extruded board for construction according to claim 8, characterized in that: The rolling mechanism comprises a second roller (9) and a third roller (902) rotatably mounted on the left side of the base (8); the second roller (9) and the third roller (902) are respectively arranged on the upper and lower sides of the composite film (101); rolling heads (901) arranged corresponding to the through holes (105) are evenly fixed on the second roller (9); rolling grooves (903) arranged corresponding to the rolling heads (901) are evenly opened on the third roller (902); and second tooth rings (904) meshing with each other are fixed around the ends of the second roller (9) and the third roller (902).

10. The method for preparing a lightweight and environmentally friendly thermal insulation extruded board for construction according to claim 9, characterized in that: The interior of the third roller (902) is configured as a hollow structure, the rolling groove (903) is connected to the hollow structure inside the third roller (902), one end of the back side of the third roller (902) extends to the outside of the base (8), one end of the back side of the third roller (902) is configured as a through structure, a second spiral conveying roller (905) is rotatably installed inside the third roller (902), and the front end of the second spiral conveying roller (905) is drivingly connected to the second roller (9).

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