High-strength polystyrene foam board and manufacturing method thereof

Abstract

The invention relates to a high-strength polystyrene foam board and a manufacturing method thereof, the high-strength polystyrene foam board comprises a foam main body, and the foam main body is formed by compression molding of foam particles; the fiber yarns are adhered to the foam particles and are used for enhancing the connection among the foam particles; the reinforcing wires are arranged in the foam main body and are used for enhancing the overall strength of the foam main body; the gravel layers are arranged on two sides of the foam main body and are used for enhancing the deformation resistance and wear resistance of the foam main body; by arranging the assembling mechanism and the filling mechanism, foam particles are connected with one another in the forming process of the foam board, and tough gravel layers are also formed on the two sides, so that the technical problems that the foam board is low in strength, prone to deformation, light in weight, drifting away and not easy to clean are solved.

Description

Technical Field

[0001] The invention relates to the technical field of high-strength polystyrene foam board production, in particular to a high-strength polystyrene foam board and a manufacturing method thereof. Background Art

[0002] Foam board is made of polystyrene particles that are expanded into white foam particles after foaming, and then the foam particles in the container are extruded and shaped. Traditional foam board has the advantages of light weight, heat insulation, sound absorption, low thermal conductivity, shock absorption, etc., and therefore plays an important role in life and production.

[0003] The prior art with application number 202311809300.X discloses a flame retardant polystyrene foam board and a preparation method thereof, comprising the following steps: step (1) placing polystyrene particles in a constant temperature water bath for pre-expansion, and then ripening at room temperature for 12-36 hours to obtain ripened polystyrene; step (2) adding the ripened polystyrene to the flame retardant mixed liquid, stirring and soaking, filtering, and drying the filter residue to obtain modified polystyrene; step (3) mixing the modified polystyrene, a binder, and a curing agent, stirring, then adding a composite flame retardant, and continuing to stir to obtain coated polystyrene; step (4) transferring the coated polystyrene into a molding machine, steam heating and molding, to obtain a flame retardant polystyrene foam board.

[0004] However, during actual use, the inventors found that the existing foam boards are weak in strength, and are prone to cracking, denting and deformation when used as protective devices during transportation. At the same time, when scratched or cracked, the foam particles are very light and the split foam particles are scattered randomly and difficult to clean. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art. By setting up an assembling mechanism and a filling mechanism, the foam particles are connected to each other during the formation of the foam board, and a relatively tough gravel layer is formed on both sides. A high-strength polystyrene foam board is produced with the aid of a special production process, thereby solving the technical problems of the foam board itself being weak in strength and easy to deform and being light and loose and difficult to clean.

[0006] In view of the above technical problems, the technical solution is as follows: a high-strength polystyrene foam board, comprising: A foam body, wherein the foam body is formed by compression molding of foam particles; Fiber filaments, which adhere to the foam particles and are used to strengthen the connection between the foam particles; A reinforcing wire, which is arranged inside the foam body and is used to enhance the overall strength of the foam body; The gravel layer is arranged on both sides of the foam body and is used to enhance the deformation resistance and wear resistance of the foam body.

[0007] A method for manufacturing a high-strength polystyrene foam board, applied to a high-strength polystyrene foam board, comprises the following steps: Step 1, assembly process, firstly, the polystyrene particle raw material is expanded into white foam particles after foaming, then the foam particles are transmitted by wind to make them bonded with the fiber filaments, then one end of the fiber filaments is cut off, and then the foam particles are processed continuously in multiple groups; Step 2, feeding process, after being bonded with the fiber filaments, the foam particles are transported and stored and fed out according to requirements. When feeding, the foam particles are first driven to shake by swinging in a larger space, and at the same time, the reinforcement wires with preset positions are matched to make the foam particles fully dispersed in the space; Step 3, layering process, when the foam particles are evenly dispersed, start to perform preliminary extrusion positioning on the foam particles as a whole, so that the positions between the foam particles remain stable. At this time, no deep extrusion shaping is performed. Then, gravel is added to both sides of the foam particles as a whole little by little in a left-right swinging manner, so that the gravel has a slight penetration between the surface layers of the foam particles, and then gradually forms a gravel layer on both sides; Step 4, the molding process, when the gravel layer is filled, the foam particles are squeezed densely by squeezing from both sides, and the gravel and the surface foam particles are embedded and fused. At this time, the extrusion and shaping of the foam board are completed, and finally the reinforcing wire is used to pull the formed foam board out.

[0008] Preferably, the foaming temperature of the foam particles is between 98°C and 102°C.

[0009] Preferably, the cooling time of the foam particles after foaming is between 23 and 25 hours.

[0010] Preferably, the temperature of the foam particles before compression molding is between 110°C and 120°C.

[0011] Preferably, the foaming process pressure is between 7.9 MPa and 8.1 MPa.

[0012] Preferably, the mass fraction of the polystyrene particles during foaming is between 20% and 40%.

[0013] Preferably, the mass fraction of the benzene additive during foaming is between 7% and 13%.

[0014] Preferably, the mass fraction of anhydrous ethanol during foaming is between 25% and 40%.

[0015] Preferably, the mass fraction of ethylene glycol ethyl ether during foaming is between 7% and 12%.

[0016] Beneficial effects of the present invention: (1) In the present invention, an assembling mechanism is provided to bond the foam particles to a section of fiber filaments during the transmission process, and then during the subsequent extrusion molding, the fiber filaments are interlaced between each foam particle, so that the overall strength of the foam board is improved. At the same time, under the connection of the fiber filaments, even if the foam board is rubbed or broken, the foam particles will not be scattered randomly; (2) In the present invention, a filling mechanism is provided. After the foam particles are compressed, the gravel is filled with sand in cooperation with the swing component. The gravel is first swung to one side and then filled with a certain height. Then, the gravel uses its own gravity to penetrate into the gap between the foam particles on the surface layer. Finally, the gravel is embedded into the foam board through extrusion to form a whole. During the process, slight shaking is used instead of vibration to avoid the situation where the gravel penetrates to a large depth or to different degrees during vibration, thereby saving raw materials and ensuring the consistency of the strength and quality of the foam board. (3) In the present invention, by providing a stirring component, when the foam board is formed, it has a main line for bearing weight and connecting the whole. At the same time, when the foam particles are added, the swing component drives the foam particles to shake. Since the stirring component is stationary at this time, the relative movement between the reinforcing wire and the foam particles makes the foam particles more evenly dispersed in the extrusion mechanism. At the same time, during the relative movement, the reinforcing wire and the fiber wire on the foam particles are entangled. After extrusion molding, the overall strength of the foam board is further improved. (4) In the present invention, by providing a gravel layer formed on both sides of the foam board, firstly, the friction of the gravel layer is utilized to improve the anti-slip performance of the foam board; secondly, the wear resistance of the gravel layer is beneficial to protecting the bottom layer and extending the life of the foam board; thirdly, it is beneficial to improve the sound and reduce the rebound of noise.

[0017] In summary, the equipment has the advantages of high overall strength of the foam board, tight connection of foam particles, and strong compression and deformation resistance of the foam board, and is particularly suitable for the technical field of high-strength polystyrene foam board production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a structural diagram of embodiment 2.

[0020] Figure 2 It is a structural diagram of the assembly mechanism.

[0021] Figure 3 This is a schematic diagram of the structure of the wind channel.

[0022] Figure 4 for Figure 3 An enlarged schematic diagram of part A.

[0023] Figure 5 for Figure 4 An enlarged schematic diagram of part B.

[0024] Figure 6 for Figure 4 An enlarged schematic diagram of part C.

[0025] Figure 7 It is a schematic diagram of the structure of the limit component.

[0026] Figure 8 It is a structural diagram of the front side of the extrusion mechanism.

[0027] Fig. 9 It is a schematic diagram of the structure of the reverse side of the extrusion mechanism.

[0028] Fig.10 It is a structural schematic diagram of the swing component.

[0029] Fig.11 Schematic diagram of the structure of the molding component.

[0030] Fig.12 It is a schematic diagram of the structure of the compression group.

[0031] Fig.13 A schematic diagram of the structure of the stirring component.

[0032] Fig.14 It is a schematic diagram of the structure of the extraction component.

[0033] Fig.15 It is a schematic diagram of the structure of the blanking component.

[0034] Fig.16 for Fig.15 An enlarged schematic diagram of part D.

[0035] Fig.17 Schematic diagram of the state of sand and gravel falling.

[0036] Fig.18 Schematic diagram of the production process.

[0037] Fig.19 This is a schematic diagram of the product structure. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings.

[0039] Embodiment 1 like Figure 1 and Fig.19 As shown, a high-strength polystyrene foam board comprises: A foam body, wherein the foam body is formed by compression molding of foam particles; Fiber filaments, which adhere to the foam particles and are used to strengthen the connection between the foam particles; A reinforcing wire, which is arranged inside the foam body and is used to enhance the overall strength of the foam body; The gravel layer is arranged on both sides of the foam body and is used to enhance the deformation resistance and wear resistance of the foam body.

[0040] Preferably, the foaming temperature of the foam particles is between 98°C and 102°C.

[0041] Preferably, the cooling time of the foam particles after foaming is between 23 and 25 hours.

[0042] Preferably, the temperature of the foam particles before compression molding is between 110°C and 120°C.

[0043] Preferably, the foaming process pressure is between 7.9 MPa and 8.1 MPa.

[0044] Preferably, the mass fraction of the polystyrene particles during foaming is between 20% and 40%.

[0045] Preferably, the mass fraction of the benzene additive during foaming is between 7% and 13%.

[0046] Preferably, the mass fraction of anhydrous ethanol during foaming is between 25% and 40%.

[0047] Preferably, the mass fraction of ethylene glycol ethyl ether during foaming is between 7% and 12%.

[0048] In this embodiment, the vaporized gas in the beads is condensed into liquid by cooling, the pressure in the beads is reduced, and the air in the atmosphere is allowed to penetrate into the beads. At the same time, the amount of liquid in the pores is increased to facilitate further foaming and increase the foaming ratio. Heating is performed before extrusion molding to evaporate the small amount of liquid remaining in the pores, thereby increasing the space of the foamed beads again.

[0049] Embodiment 2 like Figure 1 and Figures 8 to 17 As shown, a high-strength polystyrene foam board production system comprises: An assembling mechanism 1, which is disposed on a frame 100 and is used to combine the fiber filaments 300 with the foam particles 200; An extrusion mechanism 2, which is disposed on the frame 100 and is used to extrude and shape foam particles 200; A filling mechanism 3, which is arranged on the extrusion mechanism 2 and is used to form a gravel layer on both sides of the foam board; The extrusion mechanism 2 includes an oscillating component 21 arranged on the frame 100 and used to drive the foam particles 200 to swing and compact, a molding component 22 arranged on the oscillating component 21 and used for extruding the foam particles 200, a compression component 23 arranged on the oscillating component 21 and used to determine the top height of the foam board, and a stirring component 24 arranged on the oscillating component 21 and used to lay the reinforcing wire 400.

[0050] In this embodiment, by setting up the swing component 21 in the extrusion mechanism 2, the equal distribution effect is achieved through swinging before the foam particles 200 are formed, and the stirring component 24 is combined to make the distribution of the foam particles 200 in the extrusion mechanism 2 more uniform. The strength of the foam board after extrusion molding is balanced and the shape is intact. The extrusion mechanism 2 cooperates with the filling mechanism 3 to ensure that the gravel layer has a consistent molding effect on both sides of the foam board.

[0051] In detail, first, the polystyrene particle raw material is expanded into white foam particles 200 after foaming, and then the foam particles 200 are transmitted to the assembly mechanism 1 by wind power. After the work is completed, the foam particles 200 are bonded with the fiber filaments 300 and transported to the extrusion mechanism 2, and finally cooperate with the filling mechanism 3 to complete the extrusion molding of the foam board and the formation of the gravel layer.

[0052] Further, if Figures 1 to 3 As shown, the assembling mechanism 1 includes a conveying component 11 arranged on a frame 100 and used for conveying fiber filaments 300 and foam particles 200, a glue injection component 12 arranged on the conveying component 11 and used for coating glue on one side of the fiber filaments 300, a limiting component 13 arranged on the conveying component 11 and used for controlling the output of the foam particles 200, and a cutting component 14 arranged on the limiting component 13 and used for cutting the fiber filaments 300.

[0053] In this embodiment, an assembling mechanism 1 is provided to bond the foam particles 200 with a section of fiber filament 300 during transmission, and then during subsequent extrusion molding, the fiber filament 300 is interspersed between each foam particle 200, so that the overall strength of the foam board is improved. At the same time, with the connection of the fiber filament 300, even if the foam board is rubbed, broken, etc., the foam particles 200 will not float around at will.

[0054] In detail, the foam particles 200 are transmitted to the position of the assembly mechanism 1 by wind power. Under the action of the conveying component 11 and the glue injection component 12, glue is attached to the middle part of the fiber filament 300 to wait for combination with the foam particle 200. Then, the limiting component 13 and the cutting component 14 complete the bonding between the fiber filament 300 and the foam particle 200 and cut off one end of the fiber filament 300, and then multiple groups continuously process the foam particles 200.

[0055] Further, if Figures 3 to 5 As shown, the conveying assembly 11 includes a plurality of wind channels 111 opened on the frame 100 and used for conveying the foam particles 200 by wind, a first wire roller 112 connected to the frame 100 and located above the wind channel 111, a first transmission rod 114 and a second transmission rod 115 respectively connected to the frame 100 and connected to a plurality of rollers 113, a transmission gear 116 respectively connected to the first transmission rod 114 and the second transmission rod 115 and meshing with each other for transmission, a first motor 118 connected to the frame 100 and having an output end connected to the first transmission rod 114 through a first belt transmission member 117, and a positioning slot 119 opened on the wind channel 111; The glue injection assembly 12 includes multiple groups of glue injection boxes 121 arranged above the wind channel 111, glue injection tubes 122 arranged below the glue injection boxes 121 and connected to the glue injection boxes 121, a third transmission rod 123 connected to the frame 100 and passing through multiple glue injection tubes 122, multiple first reciprocating screw rods 124 connected to the third transmission rod 123, a push plate 125 connected to the first reciprocating screw rod 124 and connected to the third transmission rod 123, and a second belt transmission member 126 whose two ends are respectively connected to the third transmission rod 123 and the second transmission rod 115.

[0056] In this embodiment, by providing a glue injection component 12 linked to the conveying component 11, the output of the fiber filament 300 and the gluing operation are smoother, which is conducive to accurately positioning the gluing position and ensuring the accurate adhesion between the foam particles 200 and the gluing position.

[0057] In detail, first, the foam particles 200 are arranged in sequence in multiple groups of wind channels 111 driven by wind, and are processed one by one under the action of the limiting assembly 13. During the process, the first motor 118 drives the first transmission rod 114 and the second transmission rod 115 to rotate through the first belt transmission member 117 and the transmission gear 116, and then drives the roller 113 to rotate, and then outputs the fiber filament 300 on the first wire roller 112. When the fiber filament 300 is in the wind channel 111, it is driven by the wind to float close to the positioning groove 119. At the same time, the second transmission rod 115 drives the third transmission rod 123 to rotate through the second belt transmission member 126, and the third transmission rod 123 drives the first reciprocating screw rod 124 to rotate, and then makes the push plate 125 reciprocate on the third transmission rod 123, and the glue in the glue injection tube 122 is squeezed out and smeared on the fiber filament 300.

[0058] It should be noted that the fiber filament 300 has a certain width, and glue is applied on one side thereof. The front end of the push plate 125 is slidingly connected to the third transmission rod 123, and the rear end is rotationally connected to the first reciprocating screw rod 124, and the rear end is rotationally connected to the front end, so that the middle connection can maintain horizontal movement to block the outlet position of the glue injection box 121 when pushing.

[0059] Further, if Figures 3 to 7 As shown, the limiting assembly 13 includes a mounting frame 131 connected to the frame 100, a plurality of first blocking rods 133 connected to the mounting frame 131 through telescopic rods 132 and extending into the wind channel 111, a second blocking rod 134 connected to the wind channel 111 and connected to the first blocking rod 133, a bearing plate 135 connected to the first blocking rod 133 and used to lift the foam particles 200, and a trapezoidal block 137 connected to the output end of the first motor 118 through a second reciprocating screw rod 136 and used to lift the mounting frame 131; The slitting assembly 14 includes a plurality of slitting frames 141 connected to the mounting frame 131 and extending into the wind channel 111, a blocking plate 143 connected to the slitting frame 141 via a first telescopic member 142, a groove 144 formed on the blocking plate 143, and a cutter 146 connected to the wind channel 111 via a first spring 145 and used for cutting the fiber filaments 300.

[0060] In this embodiment, by setting the limiting component 13, the foam particles 200 can be adhered to the fiber filaments 300 without omission, thereby greatly improving the strength of the formed foam board, and effectively preventing the foam particles 200 from scattering due to the rupture of the foam board. By setting the blocking plate 143 and the groove 144 in conjunction with the positioning groove 119, the wind force in the wind channel 111 is concentrated at the position of the positioning groove 119 before cutting off the fiber filaments 300, thereby preventing the fiber filaments 300 from being adhered to the foam particles 200 at one end and continuously output at the other end, causing the fiber filaments 300 to shake randomly, and completing the cutting of the fiber filaments 300 more stably.

[0061] In detail, driven by the first motor 118 and the second reciprocating screw rod 136, the trapezoidal block 137 first retracts a certain distance backward, so that the mounting frame 131 moves downward, and the first blocking rod 133 and the second blocking rod 134 both retract to avoid, at this time, the foam particle 200 moves under the action of the wind, and then the trapezoidal block 137 reaches one end of the second reciprocating screw rod 136 and begins to move forward, so that the mounting frame 131 immediately moves upward, and the first blocking rod 133 and the second blocking rod 134 both rise, thereby intercepting a foam particle 200 between the first blocking rod 133 and the second blocking rod 134, and then the mounting frame 131 continues to rise with the movement of the trapezoidal block 137. When the first blocking rod 133 drives the bearing plate 1 After the foam particles 200 and the fiber filaments 300 are bonded together by moving up, the first blocking rod 133 is blocked by the frame 100 and no longer rises, the telescopic rod 132 begins to shrink, and the first blocking rod 133 and the second blocking rod 134 remain stationary. When the mounting frame 131 continues to rise, the cutting frame 141 drives the blocking plate 143 to gradually close the wind channel 111, so that the wind only flows from the positioning groove 119 and the groove 144, thereby ensuring that the continuously output fiber filaments 300 remain in the positioning groove 119. As the cutting frame 141 rises and contacts the cutter 146, the fiber filaments 300 are cut off by the squeezing of the first spring 145. At this time, the foam particles 200 and a section of the fiber filaments 300 complete the bonding work.

[0062] Further, if Figures 8 to 11 As shown, the swing assembly 21 includes an arc track 211 connected to the frame 100, a bottom plate 212 connected to the arc track 211, a first side plate 213 connected to the bottom plate 212, a second motor 215 connected to the frame 100 and having an output end connected to the second side plate 214, an avoidance groove 216 provided on the first side plate 213 and the second side plate 214, and a connecting buckle 217 connected to the second side plate 214; The forming assembly 22 includes two groups of first extrusion plates 221 connected to the base plate 212, multiple groups of second extrusion plates 223 connected to the first extrusion plates 221 through second springs 222, an L-shaped rod 224 connected to the first extrusion plate 221, a first rack 225 connected to the L-shaped rod 224, a third motor 226 connected to the base plate 212, and a first gear 227 connected to the output end of the third motor 226 and respectively meshing with the first racks 225 on both sides for transmission.

[0063] In this embodiment, by providing an avoidance groove 216 opened on the first side plate 213 and the second side plate 214, the movement of the reinforcing wire 400 and the swing component 21 can be either synchronous or relative, so that the stirring and uniform distribution of the foam particles 200 and the formation of the gravel layer can be conveniently carried out. The provision of multiple groups of second extrusion plates 223 is beneficial to compressing the space left when the partition 312 is withdrawn when the gravel layer is formed little by little, thereby ensuring the stability of the overall shape.

[0064] In detail, after the foam particles 200 enter the space between the swing assembly 21 and the molding assembly 22, the second motor 215 drives the second side plate 214 to rotate, and the second side plate 214 drives the bottom plate 212 and the molding assembly 22 to swing through the compression assembly 23, thereby allowing the foam particles 200 to perform adaptive position adjustment during the shaking process.

[0065] Further, if Figures 8 to 9 and Figure 12 to Figure 13 As shown, the compression assembly 23 includes a top plate 231 connected to the first side plate 213, a plug-in plate 232 connected to the top plate 231, a mounting column 233 connected to the bottom plate 212, a driving cylinder 235 connected to the mounting column 233 and having an insertion rod 234 connected to the output end, and a driving rod 236 connected to the insertion rod 234 and connected to the top plate 231.

[0066] In this embodiment, by providing an insertion rod 234 connected to the output end of the driving cylinder 235, the second motor 215 drives the bottom plate 212 to swing by utilizing the cooperation between the insertion rod 234 and the connecting buckle 217 on the second side plate 214. At the same time, the output of the foam board can also be achieved when the second side plate 214 rotates alone.

[0067] In detail, before the foam particles 200 enter the extrusion mechanism 2, the driving cylinder 235 drives the insertion rod 234 to contract, so that the insertion rod 234 is removed from the connecting buckle 217, and the driving rod 236 simultaneously drives the top plate 231 to move upward, and the foam particles 200 begin to be input at the position of the gap. Then the driving cylinder 235 is reset, and the top plate 231 and the insertion rod 234 are also reset. The second motor 215 in the swing assembly 21 drives the bottom plate 212 to swing on the arc track 211 through the second side plate 214, the insertion rod 234 and the connecting buckle 217, thereby causing the foam particles 200 to shake and disperse. After the shaking is completed, the driving cylinder 235 extends the output end again to drive the top plate 231 to descend, thereby squeezing and fixing the foam particles 200.

[0068] It should be noted that the extrusion of the top plate 231 is to fix the position of the foam particles 200 , and the shaping work is completed by the molding component 22 .

[0069] Further, if Figures 8 to 9 and Fig.13 As shown, the stirring assembly 24 includes a follower plate 241 passing through the arc track 211, a plurality of second wire rollers 242 connected to the follower plate 241, a socket 243 connected to the follower plate 241, and a fixing clamp 244 connected to the follower plate 241 and used to fix one end of the reinforcing wire 400.

[0070] In this embodiment, by providing a stirring component 24, when the foam board is formed, it has a main line inside that bears the weight and connects the whole. At the same time, when the foam particles 200 are added, the swing component 21 drives the foam particles 200 to shake. Since the stirring component 24 is stationary at this time, the relative movement between the reinforcing wire 400 and the foam particles 200 makes the foam particles 200 more evenly dispersed in the extrusion mechanism 2. At the same time, during the relative movement, the reinforcing wire 400 and the fiber wire 300 on the foam particle 200 are entangled. After extrusion molding, the overall strength of the foam board is further improved.

[0071] In detail, the reinforcing wire 400 is fixed by the fixing clamp 244 before the particles enter. When the driving cylinder 235 does not extend the output end, the stirring component 24 is separated from the swing component 21 and operates asynchronously. Therefore, when the foam particles 200 swing, the reinforcing wire 400 remains stationary and moves the foam particles 200 in the space, so that the corners of the space can also be fully filled with the foam particles 200. When the compression component 23 is compressed downward, the top plate 231 drives the plug-in plate 232 to be inserted into the plug-in seat 243 on the follower plate 241, and then when the swing component 21 swings, the stirring component 24 also swings accordingly. The relatively static state can prevent the reinforcing wire 400 from affecting the gravel layer when it is formed.

[0072] It should be noted that one end of the reinforcing wire 400 is fixed by the fixing clamp 244, and it needs to be opened to both sides when the foam board is output, and then the reinforcing wire 400 is pulled to pull the foam board onto the conveyor belt for subsequent processing.

[0073] Further, if Figures 8 to 9 and Figures 14 to 17 As shown, the filling mechanism 3 includes a drawing component 31 arranged on the compression component 23 and used to separate the sand and the foam particles 200, and a dropping component 32 arranged on the compression component 23 and used to add the sand.

[0074] It is worth mentioning here that by setting the gravel layer formed on both sides of the foam board, firstly, the friction of the gravel layer is utilized to improve the anti-slip performance of the foam board; secondly, the wear resistance of the gravel layer is beneficial to protecting the bottom layer and extending the life of the foam board; thirdly, it is beneficial to improve the sound and reduce the rebound of noise.

[0075] In detail, after the position of the foam particles 200 is pressed, the filling mechanism 3 begins to cooperate with the swinging component 21 to alternately put gravel into both sides of the foam particles 200 in a left-right swinging manner, so that the gravel can slightly penetrate between the surface layers of the foam particles 200, and then gradually form a gravel layer on both sides. During the process, the blanking component 32 is responsible for the intermittent output of the gravel, and the extraction component 31 serves to isolate the gravel from the foam particles 200.

[0076] Further, if Figures 14 to 17 As shown, the extraction assembly 31 includes two groups of partitions 312 connected to the mounting column 233 through a slider 311, a second rack 313 connected to the slider 311, a fourth motor 314 connected to the mounting column 233, and a half gear 315 connected to the output end of the fourth motor 314 and meshing with the second rack 313 for transmission; The blanking assembly 32 includes a storage bin 321 connected to the mounting column 233, a baffle 322 connected to the outlet position of the storage bin 321, a third rack 324 connected to the mounting column 233 through a third telescopic member 323 and connected to the baffle 322, and a semi-ratchet 325 connected to the output end of the fourth motor 314 and meshing with the third rack 324 for transmission.

[0077] In this embodiment, by providing a filling mechanism 3, after the foam particles 200 are compressed, the gravel is filled in cooperation with the swing component 21. It is first swung to one side and then filled with gravel to a certain height. Then, the gravel's own gravity is used to penetrate into the gaps between the surface foam particles 200. Finally, it is embedded with the foam board through extrusion to form a whole. During the process, slight shaking is used instead of vibration to avoid the situation where the gravel penetrates to a large depth or to different degrees during vibration, thereby saving raw materials and ensuring the consistency of the strength and quality of the foam board.

[0078] In detail, when swinging to one side, the fourth motor 314 drives the half gear 315 and the half ratchet 325 on one side to rotate 180°. During the process, the half ratchet 325 first drives the third rack 324 to move downward, and the third rack 324 drives the baffle 322 to move downward, so that the outlet of the storage bin 321 is opened, and the gravel flows to between the second extrusion plate 223 and the partition 312. As the half ratchet 325 separates from the third rack 324, the third rack 324 is reset under the drive of the third telescopic member 323, and the gravel stops outputting; then the half gear 315 drives the second rack 313 to move upward to a certain height, and the second rack 313 drives the partition 312 to move upward through the slider 311. At this time, the gravel contacts the foam particles 200. The space left after the partition 312 is withdrawn is filled by the second spring 222 pushing the second extrusion plate 223 to move, thereby ensuring the stability of the internal structure. When the gravel layers on both sides are laid out, the third motor 226 in the molding component 22 drives the first racks 225 on both sides to close through the first gear 227, and then drives the first extrusion plates 221 and the second extrusion plates 223 on both sides to shrink through the L-shaped rod 224. Finally, the foam plate is extruded and formed, and the gravel is embedded in the surface foam particles 200 to form a gravel layer.

[0079] It should be noted that the height to which the partition 312 rises each time is consistent with the height of the second extrusion plate 223. The fourth motor 314 stops every time it rotates 180°, and waits for the swing assembly 21 to swing to the other end before starting to rotate. The swing assembly 21 will stay for a certain period of time when it swings to the edge position to ensure the penetration between the gravel and the foam particles 200. The gravel in the storage bin 321 is input through an external pipeline, not shown in the figure. The semi-ratchet 325 will not drive the gravel to be output when it rotates in the opposite direction to reset.

[0080] Embodiment 3 like Fig.18 As shown, a method for manufacturing a high-strength polystyrene foam board is applied to a high-strength polystyrene foam board, comprising the following steps: Step 1, assembly process, firstly, the polystyrene particle raw material is expanded into white foam particles 200 after foaming, then the foam particles 200 are transmitted by wind power to make them bonded with the fiber filaments 300, then one end of the fiber filaments 300 is cut off, and then the foam particles 200 are processed continuously in multiple groups; Step 2, feeding process, after being bonded with the fiber filaments 300, the foam particles 200 are transported and stored and fed out according to requirements. When feeding, the foam particles 200 are first driven to shake in a larger space by swinging, and at the same time, the reinforcement wires 400 with preset positions are matched to make the foam particles 200 fully dispersed in the space; Step 3, layering process, after the foam particles 200 are evenly dispersed, the foam particles 200 are initially squeezed and positioned so that the positions between the foam particles 200 remain stable. At this time, no deep squeezing and shaping is performed. Subsequently, gravel is added to both sides of the foam particles 200 in a left-right swinging manner little by little, so that the gravel slightly penetrates between the surface layers of the foam particles 200, and then a gravel layer is gradually formed on both sides. Step 4, the molding process, when the gravel layer is filled, the foam particles 200 are squeezed and compacted by squeezing from both sides, and the gravel and the surface foam particles 200 are embedded and fused. At this time, the extrusion and shaping of the foam board is completed, and finally the reinforcing wire 400 is used to pull the formed foam board out.

[0081] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0082] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A high-strength polystyrene foam board, characterized in that: include: A foam body, wherein the foam body is formed by compression molding of foam particles; Fiber filaments, which adhere to the foam particles and are used to strengthen the connection between the foam particles; A reinforcing wire, which is arranged inside the foam body and is used to enhance the overall strength of the foam body; The gravel layer is arranged on both sides of the foam body and is used to enhance the deformation resistance and wear resistance of the foam body. Gravel is alternately thrown into both sides of the foam particles in a left-right swinging manner, so that the gravel can slightly penetrate between the surface layers of the foam particles, thereby forming a gravel layer on both sides.

2. A method for manufacturing a high-strength polystyrene foam board, applied to the high-strength polystyrene foam board as claimed in claim 1, characterized in that: The following steps are involved: Step 1, assembly process, firstly, the polystyrene particle raw material is expanded into white foam particles after foaming, then the foam particles are transmitted by wind to make them bonded with the fiber filaments, then one end of the fiber filaments is cut off, and then the foam particles are processed continuously in multiple groups; Step 2, feeding process, after being bonded with the fiber filaments, the foam particles are transported and stored and fed out according to requirements. When feeding, the foam particles are first driven to shake by swinging in a larger space, and at the same time, the reinforcement wires with preset positions are matched to make the foam particles fully dispersed in the space; Step 3, layering process, when the foam particles are evenly dispersed, the foam particles are initially squeezed and positioned so that the positions between the foam particles remain stable. At this time, no deep squeezing and shaping is performed. Then, gravel is alternately added to both sides of the foam particles in a left-right swinging manner so that the gravel has a slight penetration between the surface layers of the foam particles, and then a gravel layer is gradually formed on both sides. Step 4, the molding process, when the gravel layer is filled, the foam particles are squeezed densely by squeezing from both sides, and the gravel and the surface foam particles are embedded and fused. At this time, the extrusion and shaping of the foam board are completed, and finally the reinforcing wire is used to pull the formed foam board out.

3. The method for producing a high-strength polystyrene foam board according to claim 2, characterized in that: The foaming temperature of the foam particles is between 98°C and 102°C.

4. The method for producing a high-strength polystyrene foam board according to claim 2, characterized in that: The cooling time of the foam particles after foaming is between 23 and 25 hours.

5. The method for producing a high-strength polystyrene foam board according to claim 2, characterized in that: The temperature of the foam particles before compression molding is between 110° C. and 120° C.

6. The method for producing a high-strength polystyrene foam board according to claim 2, characterized in that: The pressure of the foaming process is between 7.9 MPa and 8.1 MPa.

7. The method for producing a high-strength polystyrene foam board according to claim 2, characterized in that: The mass fraction of the polystyrene particles during foaming is between 20% and 40%.

8. The method for producing a high-strength polystyrene foam board according to claim 2, characterized in that: The mass fraction of the benzene additive during foaming is between 7% and 13%.

9. The method for producing a high-strength polystyrene foam board according to claim 2, characterized in that: The mass fraction of anhydrous ethanol during foaming is between 25% and 40%.

10. The method for producing a high-strength polystyrene foam board according to claim 2, characterized in that: The mass fraction of ethylene glycol ethyl ether during foaming is between 7% and 12%.

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