Preparation method of sand-degradable plastic hollow corrugated board in one step

Abstract

The invention relates to a method for preparing a sand-degradable plastic one-step hollow corrugated board, comprising step one, an automatic metering and conveying batching process; step two, a melting and mixing process; step three, an extrusion and molding sheet process; and step four, a cooling and collecting process; wherein step three comprises a first reinforcement process and a second reinforcement process; the invention solves the technical problem that the corrugated layers formed by extrusion are parallel to each other in wave shape by arranging a special mechanical structure setting, respectively by changing the corrugated layer structure and adding reinforcements, so that when the produced corrugated paper box is subjected to pressure parallel to the wave convex position, the two sides are bent and the middle corrugated layer cannot play an anti-deformation effect.

Description

Technical Field

[0001] The invention relates to the technical field of one-step hollow corrugated board preparation, in particular to a one-step preparation method of sand-degradable plastic hollow corrugated board. Background Art

[0002] Corrugated boxes are made of corrugated cardboard and are the most widely used paper container packaging. They are widely used in transportation packaging. The reason why corrugated boxes are widely used is that the existing corrugated boxes are easy to absorb water in traditional Chinese paper packaging boxes. After absorbing water, the tensile strength is low or even has no tensile strength, which makes the internal packaging, especially vegetables and fruits, easy to be damaged.

[0003] Patent document CN110626040A discloses a corrugated paperboard, which includes a corrugated paper layer, a yarn layer and a first surface paper layer stacked in sequence from bottom to top, and two sides of the yarn layer are respectively bonded to the corrugated paper layer and the first surface paper layer.

[0004] However, in actual use, the inventors found that the extruded corrugated layers were parallel to each other in wave shape. Therefore, when the produced corrugated paper boxes were subjected to pressure parallel to the wave convex position, the two sides bent and the middle corrugated layer could not play a role in resisting deformation. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies of the prior art. By using the structure of high-strength corrugated board with special technology, the corrugated layer structure is changed and reinforcement is added, thereby solving the technical problem that the corrugated layers formed by extrusion are parallel to each other in wave shape. Therefore, when the produced corrugated paper box is subjected to pressure parallel to the wave convex position, the two sides are bent and the middle corrugated layer cannot play an anti-deformation effect.

[0006] In view of the above technical problems, the technical solution is as follows: a method for preparing a sand-degradable plastic one-step hollow corrugated board, comprising the following steps:

[0007] Step 1: Automatically meter and convey ingredients, grind the sand to obtain sand powder, and then centrally convey it to the polymer super-dispersed physical reaction polymerization reactor for continuous stirring and dispersion activation treatment, so that the sand powder, organic polymer, and additives are fully reacted and mixed to produce materials;

[0008] Step 2, melt mixing process, the materials after physical reaction and mixing are continuously transported to the mixing melting equipment, at a temperature of 240-250°C, the mixture of sand powder, organic polymer and additives is melted and dispersed uniformly, and the sand powder is evenly coated by the organic polymer and additives, and then the required shape is produced by the shaping mechanism in the extrusion molding device;

[0009] Step 3: Extrusion forming sheet process, completing the corrugated board composite forming through the first reinforcement process and the second reinforcement process;

[0010] Step 4: Cooling and collecting process: after the corrugated board is composite-formed, it is transferred to the cutting device for cooling, cutting and collecting;

[0011] The step three includes:

[0012] S1, a first reinforcement step, before the upper layer, the lower layer and the corrugated layer of the corrugated board are extruded and bonded to each other through their own plasticity, a first wiring mechanism in the extrusion molding device lays a zigzag fiber filament on the corrugated layer by reciprocating movement;

[0013] S2, the second reinforcement process, before the three layers of the corrugated board are compounded, the second wiring mechanism in the extrusion molding device sends the reinforcement tape between the corrugated layer and the upper layer, and strengthens the connection between the reinforcement tape and the corrugated layer.

[0014] Preferably, the stirring is continued for 5-10 minutes in step 1.

[0015] Preferably, the temperature of continuous stirring in step 1 is controlled within the low temperature range of 75-85°C.

[0016] Preferably, the melting and banburying temperature of the banburying melting equipment is between 240°C and 250°C.

[0017] Preferably, the internal mixing and melting equipment is a three-screw structure.

[0018] Preferably, the transverse and longitudinal sections of the corrugated layer are both wavy.

[0019] Preferably, the second wiring mechanism includes a supporting assembly arranged on the frame and used to convey the reinforcing tape, a stripping assembly arranged on the frame and used to strip multiple filaments from the reinforcing tape, and a feeding assembly arranged on the frame and used to strengthen the connection between the filaments and the corrugated layer.

[0020] Preferably, the support assembly includes a mounting rod connected to the frame, a plurality of first linear rollers connected to the mounting rods and used for storing the reinforcing belts, and a first round roller connected to the frame and used for outputting and guiding the reinforcing belts.

[0021] Preferably, the stripping assembly includes a trapezoidal guide rail connected to the frame, a stripping claw connected to the trapezoidal guide rail, a connecting rod connected to the stripping claw and having one end connected to a driving rack, a mounting frame connected to the frame via a first telescopic member and having one side connected to a follower rack, a driving gear connected to the mounting frame via a first rotating shaft and meshing with the driving rack and the follower rack respectively, and a limit plate connected to the follower rack.

[0022] Preferably, the feeding assembly includes a plurality of extrusion boxes arranged on the frame corresponding to the reinforcement belts and connected to each other, a first motor connected to the extrusion box and having a sleeve rod connected to the output end, a first reciprocating screw connected to the extrusion box and connected to the sleeve rod, a cutter connected to the first reciprocating screw and located at the outlet position of the extrusion box, a bracket connected to the extrusion box, a fan blade connected to the bracket through a second rotating shaft, a third rotating shaft connected to the bracket, a first belt transmission member whose two ends are respectively connected to the third rotating shaft and the sleeve rod, and a second belt transmission member whose two ends are respectively connected to the third rotating shaft and the second rotating shaft.

[0023] Beneficial effects of the present invention:

[0024] In the present invention, sand powder and other additives are concentratedly transported to a polymer super-dispersed physical reaction polymerization reactor, mixed through physical reaction, and then generated in a mixing and melting device to produce raw materials for making corrugated paper boxes with the advantages of being waterproof, mildew-proof, antibacterial, hard, high-strength, and not easy to deform, thereby solving the technical problem that traditional paper packaging boxes are easy to absorb water, have low tensile strength after absorbing water, or even have no tensile strength, which leads to easy damage of internal packaging materials, especially vegetables and fruits. At the same time, the one-step production method can reduce energy consumption by 50% and increase production capacity by more than 2 times, which is in line with the green new state and new quality productivity; (2) In the present invention, a shaping mechanism is set to change the traditional parallel wave-type corrugated layer into a folded line output, so that a new bend is formed in the originally parallel position, and then when subjected to forces in various directions such as horizontal and vertical directions, the corrugated layer can play a certain anti-bending effect, greatly improving the strength of the corrugated paper box and ensuring the lossless transportation of goods.

[0025] In summary, the hollow corrugated board in the present application adopts silica as raw material, so that the product material has the advantages of being waterproof, mildew-proof and antibacterial. At the same time, the special production process makes the product structure stable, hard, strong and not easy to deform, and the equipment has high production efficiency, which is particularly suitable for the field of one-step hollow corrugated board preparation technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] Figure 1 Schematic diagram of the production process.

[0028] Figure 2 This is a schematic diagram of the product structure.

[0029] Figure 3 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 4 It is a structural schematic diagram of the first wiring mechanism.

[0031] Figure 5 Schematic diagram of the structure of the extrusion component.

[0032] Figure 6 Schematic diagram of the recycling component structure.

[0033] Figure 7 It is a schematic diagram of the structure of the wire-laying component.

[0034] Figure 8 It is a structural schematic diagram of the friction roller.

[0035] Fig. 9 It is a schematic diagram of the structure of the transmission rack.

[0036] Fig.10 A schematic diagram of the structure of the embedded component.

[0037] Fig.11 It is a structural schematic diagram of the second wiring mechanism.

[0038] Fig.12 Schematic diagram of the structure of the stripping component.

[0039] Fig.13 Schematic diagram of the working status of the stripping component.

[0040] Fig.14 It is a structural schematic diagram of the feeding component. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings.

[0042] Embodiment 1

[0043] like Figures 1 to 3 As shown, 1. A method for preparing a sand-degradable plastic one-step hollow corrugated board, characterized in that it comprises the following steps:

[0044] Step 1: Automatically meter and convey ingredients, grind the sand to obtain sand powder, and then centrally convey it to the polymer super-dispersed physical reaction polymerization reactor for continuous stirring and dispersion activation treatment, so that the sand powder, organic polymer, and additives are fully reacted and mixed to produce materials;

[0045] Step 2, melt mixing process, the materials after physical reaction and mixing are continuously transported to the mixing melting equipment, at a temperature of 240-250°C, the mixture of sand powder, organic polymer and additives is melted and dispersed uniformly, and the sand powder is evenly coated by the organic polymer and additives, and then the required shape is produced by the shaping mechanism 1 in the extrusion molding device;

[0046] Step 3: Extrusion forming sheet process, completing the corrugated board composite forming through the first reinforcement process and the second reinforcement process;

[0047] Step 4: Cooling and collecting process: after the corrugated board is composite-formed, it is transferred to the cutting device for cooling, cutting and collecting;

[0048] The step three includes:

[0049] S1, the first reinforcement process, before the middle and lower layers of the corrugated board are extruded separately and bonded to each other through their own plasticity, the first wiring mechanism 2 in the extrusion molding device lays the zigzag fiber filaments 500 on the corrugated layer 400 by reciprocating movement;

[0050] S2, the second reinforcement process, before the three layers of the corrugated board are compounded, the second wiring mechanism 3 in the extrusion molding device sends the reinforcement tape 600 between the corrugated layer 400 and the upper layer 200, and reinforces the connection between the reinforcement tape 600 and the corrugated layer 400.

[0051] In this embodiment, sand powder, other auxiliary agents, coupling agents, cross-linking agents, etc. are centrally transported to a polymer ultra-dispersed physical reaction polymerization reactor, mixed through physical sufficient reaction, and then generated in a mixing and melting equipment to produce raw materials for making corrugated paper boxes with the advantages of being waterproof, mildew-proof, antibacterial, hardness, high strength, and not easy to deform. This solves the technical problem that traditional paper packaging boxes are easy to absorb water, have low tensile strength after absorbing water, or even have no tensile strength, which makes the internal packaging, especially vegetables and fruits, easy to damage. At the same time, the one-step production method is used to reduce energy consumption by 50% and increase production capacity by more than 2 times, thereby solving the technical problems of complex production process and high energy consumption in the prior art, which is in line with the green new state and new quality productivity.

[0052] Moreover, by grinding the sand into sand powder, the fusion effect between the raw materials is improved, and the product feels smoother. By using sand as raw material, local materials can be used and waste can be turned into treasure, which can reduce costs by more than 15%.

[0053] Further, if Figure 1 As shown, in step one, continuous stirring is performed for 5-10 minutes, and the temperature of continuous stirring in step one is controlled within the low temperature range of 75-85° C., and the temperature itself is preheated during the physical stirring reaction to prepare for sufficient mixing for subsequent melt mixing.

[0054] The melting and melting temperature of the internal mixing and melting equipment is between 240°C and 250°C.

[0055] In this embodiment, by controlling the temperature, the sand powder, organic polymer, additives, etc. are melted more evenly and dispersed, and the sand powder is more evenly coated by the organic polymer, additives, etc., thereby improving the quality of the corrugated paper box after extrusion molding.

[0056] Further, if Figure 1 As shown, the internal mixing and melting equipment is a three-screw structure.

[0057] In this embodiment, by providing a three-screw structure, the technical problem that the sand contains silicon dioxide and heavy metals and is therefore difficult to disperse is solved.

[0058] Further, if Figure 1 to Figure 2 As shown, the transverse and longitudinal sections of the corrugated layer 400 are both wavy.

[0059] In this embodiment, by providing a corrugated layer 400 with wavy cross-sections and longitudinal sections, the bending resistance of the corrugated layer 400 is greatly improved.

[0060] Embodiment 2

[0061] like Figure 3 to Figure 4 and Figures 11 to 14 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that:

[0062] Further, if Figure 3 to Figure 4 and Figures 11 to 14 As shown, the second wiring mechanism 3 includes a supporting assembly 31 arranged on the frame 100 and used for conveying the reinforcing tape 600, a stripping assembly 32 arranged on the frame 100 and used for stripping a plurality of filaments 700 from the reinforcing tape 600, and a feeding assembly 33 arranged on the frame 100 and used for connecting the reinforcing filaments 700 with the corrugated layer 400.

[0063] It is worth mentioning that by setting up the second wiring mechanism 3 and utilizing the position of the reinforcing belt 600 between the corrugated layer 400 and the upper layer 200, the reinforcing belt 600 can improve the bending strength of the corrugated box while utilizing its own position to provide a certain support to the upper layer 200, thereby solving the technical problem that due to the high temperature and plasticity of the corrugated layer 400 during extrusion, the upper layer 200's own gravity causes the corrugated layer 400 to deform when combined with the upper layer 200.

[0064] In detail, first, the shaping mechanism 1 extrude the upper layer 200, the lower layer 300 and the corrugated layer 400, and then, since the corrugated layer 400 is just located above the lower layer 300, the two begin to contact and combine after extrusion. Since the upper layer 200 is located slightly backward, the support component 31 outputs the reinforcement belt 600 before the upper layer 200 contacts the corrugated layer 400, so that it is located between the upper layer 200 and the corrugated layer 400. Before the reinforcement belt 600 enters, the stripping component 32 will work intermittently and strip off multiple filaments 700 on the reinforcement belt 600. Then, under the action of the feeding component 33, the multiple filaments 700 will combine with the corrugated layer 400 to increase the connection between the reinforcement belt 600 and the corrugated layer 400.

[0065] Further, if Figure 3 to Figure 4 and Fig.11 As shown, the support assembly 31 includes a mounting rod 311 connected to the frame 100, a plurality of first line rollers 312 connected to the mounting rod 311 and used to store the reinforcing belt 600, and a first round roller 313 connected to the frame 100 and used to output and guide the reinforcing belt 600.

[0066] In this embodiment, by providing a reinforcing belt 600 between the upper layer 200 and the corrugated layer 400, the upper layer 200 can rely on its own weight through multiple reinforcing belts 600 during the output process, thereby reducing the squeezing of the corrugated layer 400 by the upper layer 200's own weight, ensuring the shape stability of the corrugated layer 400. At the same time, the reinforcing belt 600 also serves to increase the longitudinal bending strength of the corrugated paper box itself.

[0067] In detail, at the beginning of production, workers guide the upper layer 200 to cover the corrugated layer 400, and place multiple reinforcing belts 600 between the two. Then, the first line roller 312, driven by the first round roller 313, outputs the reinforcing belt 600 synchronously with the lower layer 300. Since the upper layer 200 and the corrugated layer 400 are quickly combined after contact and quickly cooled at the cutting device position, the reinforcing belt 600 is firmly fixed, and then in subsequent production, the limiting effect of the two ends of the reinforcing belt 600 is used to support the upper layer 200 that has just been output.

[0068] It should be noted that there is a certain amount of friction between the mounting rod 311 and the frame 100 , so that the output of the reinforcing belt 600 is more stable.

[0069] Further, if Figure 3 to Figure 4 , Figures 11 to 13As shown, the stripping assembly 32 includes a trapezoidal guide rail 321 connected to the frame 100, a stripping claw 322 connected to the trapezoidal guide rail 321, a connecting rod 324 connected to the stripping claw 322 and having one end connected to a driving rack 323, a mounting frame 327 connected to the frame 100 through a first telescopic member 325 and having one side connected to a follower rack 326, a driving gear 329 connected to the mounting frame 327 through a first rotating shaft 328 and meshing with the driving rack 323 and the follower rack 326 respectively, and a limiting plate 3210 connected to the follower rack 326.

[0070] It is worth mentioning that, by providing the trapezoidal guide rail 321 , the stripping claw 322 can start to move synchronously with the reinforcing belt 600 at a certain speed, and then move rapidly to move relative to the reinforcing belt 600 to strip off the filament 700 .

[0071] In detail, first, the stripping claw 322 moves at the bevel position of the trapezoidal guide rail 321. At this time, the stripping claw 322 moves downward at the same speed as the reinforcing belt 600 while approaching the reinforcing belt 600. In the process of reaching the bevel edge, the stripping claw 322 squeezes the mounting frame 327 through the connecting rod 324 and makes it move downward together. At the same time, the connecting rod 324 drives the driving rack 323 to move. The driving rack 323 drives the follower rack 326 to move through the driving gear 329. The follower rack 326 drives the limiting plate 3210 to move toward the reinforcing belt 600. When the limiting plate 3210 is close to the reinforcing belt 600, When the stripping belt 600 is moved, the driving rack 323 is separated from the driving gear 329 and no longer drives the follower rack 326 to move, but the stripping claw 322 continues to move forward a certain distance. Under the limiting effect of the limiting plate 3210 on the reinforcing belt 600, the stripping claw 322 pierces the reinforcing belt 600. Next, the stripping claw 322 moves up and down on the bottom edge of one side of the trapezoidal guide rail 321 and moves relative to the reinforcing belt 600, thereby stripping off a plurality of filaments 700 from the reinforcing belt 600. Finally, the stripping claw 322 is reset along the remaining edge of the trapezoidal guide rail 321, and the mounting frame 327 is also reset under the action of the first telescopic member 325.

[0072] It should be noted that, due to a certain friction between the mounting rod 311 and the frame 100, the movement of the mounting rod 311 itself will not be affected when the filament 700 is stripped; a damper is arranged between the follower rack 326 and the mounting frame 327, so that when the stripping claw 322 pierces the reinforcing belt 600, the limit plate 3210 can maintain its position.

[0073] Further, if Figure 3 to Figure 4 , Fig.11 and Fig.14As shown, the feeding assembly 33 includes a plurality of extrusion boxes 331 which are arranged on the frame 100 corresponding to the reinforcement belt 600 and are interconnected, a first motor 333 which is connected to the extrusion box 331 and has a sleeve rod 332 connected to its output end, a first reciprocating screw rod 334 which is connected to the extrusion box 331 and connected to the sleeve rod 332, a cutter 335 which is connected to the first reciprocating screw rod 334 and is located at the outlet position of the extrusion box 331, a bracket 336 which is connected to the extrusion box 331, a fan blade 338 which is connected to the bracket 336 via a second rotating shaft 337, a third rotating shaft 339 which is connected to the bracket 336, a first belt transmission member 3310 whose two ends are respectively connected to the third rotating shaft 339 and the sleeve rod 332, and a second belt transmission member 3311 whose two ends are respectively connected to the third rotating shaft 339 and the second rotating shaft 337.

[0074] In this embodiment, by providing a feeding assembly 33, the filaments 700 peeled off from the reinforcing belt 600 are not just randomly scattered on the corrugated layer 400, but are fixed on the corrugated layer 400, thereby greatly strengthening the connection between the reinforcing belt 600 and the corrugated layer 400, thereby improving the overall strength of the corrugated paper box.

[0075] In detail, when the filament 700 moves downward to the position of the feeding assembly 33, the first motor 333 drives the sleeve rod 332 to rotate, the sleeve rod 332 drives the third rotating shaft 339 to rotate through the first belt transmission member 3310, the third rotating shaft 339 drives the second rotating shaft 337 to rotate through the second belt transmission member 3311, and the second rotating shaft 337 drives the fan blades 338 to rotate, and then the wind force is used to pass through the gap on the reinforcing belt 600 so that the filament 700 is driven by the airflow to be perpendicular to the reinforcing belt 600, and at the same time, the sleeve rod 332 drives the first reciprocating screw rod 334 to rotate, so that the cutter 335 moves and cuts off the strip material squeezed out at the outlet position of the extrusion box 331, causing it to fall and fix the filament 700 on the corrugated layer 400.

[0076] It should be noted that the pressure of the extrusion box 331 comes from the shaping mechanism 1, and the cutter 335 is coated with an anti-stick coating.

[0077] Embodiment 3

[0078] like Figures 2 to 6 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The differences between the third embodiment and the first embodiment are as follows:

[0079] Further, if Figures 2 to 6 As shown, the shaping mechanism 1 includes an extrusion component 11 arranged on the frame 100 and used for shaping and extruding the raw material, and a recovery component 12 arranged on the frame 100 and used for cutting and recovering excess raw material.

[0080] In this embodiment, by setting up a shaping mechanism 1, the traditional parallel wave-type corrugated layer 400 is changed into a folded line output, so that a new bend is formed in the originally parallel position, and then when subjected to forces in various directions such as horizontal and vertical directions, the corrugated layer 400 can play a certain anti-bending effect, thereby greatly improving the strength of the corrugated box and ensuring the lossless transportation of items.

[0081] In detail, the processed raw materials are shaped and output through the extrusion component 11, and the excess raw materials at the position of the corrugated layer 400 are recycled by the recovery component 12.

[0082] Further, if Figures 2 to 6 As shown, the extrusion assembly 11 includes a first shaping port 112 and a second shaping port 113 connected to the extruder 111, a conveyor belt 114 connected to the frame 100 and located below the first shaping port 112, a second round roller 115 connected to the frame 100 and located below the second shaping port 113, and a third shaping port 117 connected to the extruder 111 through an oscillator 116 and located above the first shaping port 112;

[0083] The recycling component 12 includes two sets of recycling boxes 121 connected to the frame 100 and located on both sides of the first shaping port 112, a cutting line 122 connected to the recycling box 121 and used to separate the corrugated layer 400, a spiral dragon conveyor 123 connected to the bottom of the recycling box 121, and a conveying pipe 124 whose two ends are respectively connected to the recycling box 121 and the extrusion box 331.

[0084] In this embodiment, by providing a third shaping port 117 connected to an oscillator 116, the corrugated layer 400, which was originally output in a straight line, is now output in a zigzag swing manner, thereby forming a corrugated layer 400 with wavy cross-sections and longitudinal sections on the lower layer 300. Since the position of the third shaping port 117 will exceed the range of the lower layer 300 during the swinging process, excess raw materials will be formed. At this time, in order to prevent the excess raw materials from falling and damaging the structure of the corrugated layer 400, the recovery component 12 will quickly cut off the excess part.

[0085] In detail, under the action of the extruder 111, the first shaping port 112 outputs the lower layer 300 and moves under the action of the transmission belt, and the third shaping port 117 reciprocates under the drive of the oscillator 116, outputs the corrugated layer 400 on the lower layer 300, and the third shaping port 117 outputs the upper layer 200, and moves to the top of the corrugated layer 400 under the drive of the second round roller 115. When the three are in contact, the connection points are combined with each other to form a whole. During the swinging process of the third shaping port 117, the part of the corrugated layer 400 exceeding the lower layer 300 is timely divided under the action of the cutting line 122, and recovered in the recovery box 121, and then driven by the spiral dragon conveyor 123, it enters the conveying pipe 124 to reach the extrusion box 331.

[0086] It should be noted that the extrusion pressure of the extrusion box 331 comes from the spiral dragon conveyor 123; the first round roller 313 and the second round roller 115 are driven by their own power and have the same distance when rotating.

[0087] Further, if Figure 3 to Figure 4 and Figures 7 to 10 As shown, the first wiring mechanism 2 includes a pay-off assembly 21 disposed on the frame 100 and used for laying the fiber filament 500 in a zigzag manner on the corrugated layer 400, and an embedding assembly 22 disposed on the frame 100 and used for embedding two sides of the zigzag fiber filament 500 into the corrugated layer 400 for fixing.

[0088] In this embodiment, by setting up the first wiring mechanism 2, the fiber filaments 500 are evenly distributed on the inner wall of the corrugated box. At the same time, the positions of the fiber filaments 500 and the reinforcing belt 600 are staggered, and then cooperate with the reinforcing belt 600 to further enhance the bending resistance of the corrugated box in all directions, thereby improving product quality.

[0089] In detail, after the corrugated layer 400 is output and before it is combined with the upper layer 200, the pay-off assembly 21 lays the fiber filaments 500 back and forth on the corrugated layer 400, and at the edge position, the embedding assembly 22 embeds the end of the fiber filaments 500 into the corrugated layer 400 and fixes it.

[0090] Further, if Figure 3 to Figure 4 and Figures 7 to 10As shown, the pay-off assembly 21 includes a second reciprocating screw rod 212 connected to the frame 100 and having one end connected to the output end of the second motor 211, a slider 213 connected to the second reciprocating screw rod 212, a second line roller 214 connected to the slider 213 and used for storing the fiber filament 500, a guide hole 215 opened on the slider 213, a fourth rotating shaft 217 and a fifth rotating shaft 218 connected to the slider 213 and having one end connected to a friction roller 216, a first ratchet gear 219 and a second ratchet gear 2110 respectively connected to the fourth rotating shaft 217 and the fifth rotating shaft 218, and a line transmission rack 2111 connected to the frame 100 and respectively meshing with the first ratchet gear 219 and the second ratchet gear 2110 for transmission;

[0091] The embedded component 22 includes two groups of slot plates 221 connected to the frame 100, a knife 224 connected to the slot plate 221 through a second telescopic member 222 and having a first rack 223 connected to one side, a first gear 226 connected to the slot plate 221 through a sixth rotating shaft 225 and meshing with the first rack 223 for transmission, a third ratchet gear 227 connected to the sixth rotating shaft 225, and two groups of second racks 228 connected to the slider 213 and meshing with the third ratchet gear 227 for transmission.

[0092] In this embodiment, by setting up the embedding component 22 and utilizing the power of the pay-off component 21 to move back and forth, the two ends of the fiber filament 500 on the corrugated layer 400 are squeezed and embedded into the corrugated layer 400, thereby fixing the position of the fiber filament 500 and stretching the fiber filament 500 to straighten it, which is beneficial to improve the bending resistance.

[0093] In detail, first, the second motor 211 drives the second reciprocating screw 212 to rotate, and then the slider 213 starts to move back and forth on the second reciprocating screw 212. During the reciprocating process, the first ratchet gear 219 and the second ratchet gear 2110 respectively connected to the fourth rotating shaft 217 and the fifth rotating shaft 218 are alternately meshed with the wire transmission rack 2111 for transmission, and the friction between the two friction rollers 216 is used to drive each other, and finally the friction roller 216 drives the fiber filament 500 on the second wire roller 214 to be output through the guide hole 215 and fall on the corrugated layer 400. With the output of the corrugated layer 400, the fiber filament 500 presents a folded line distribution on the corrugated layer 400. When the slider 213 moves to one side and starts to change direction, the second rack 228 connected to the slider 213 drives the third ratchet gear 227 to rotate, and then drives the first gear 226 to rotate through the sixth rotating shaft 225, and the first gear 226 drives the first rack 223 to move downward, and the first rack 223 drives the gate knife 224 on the slot plate 221 to move downward. At this time, the bent part of the fiber filament 500 just moves with the corrugated layer 400 to the bottom of the gate knife 224, and then is embedded in the corrugated layer 400 under the extrusion of the gate knife 224 to complete the fixation, and then the second rack 228 is separated from the third ratchet gear 227, and the gate knife 224 is reset under the drive of the second telescopic member 222.

[0094] It should be noted that the gate blade 224 is coated with an anti-stick coating.

[0095] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "front and back", "left and right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the invention.

[0096] 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.

[0097] 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 one-step method for preparing a sand-containing hollow corrugated board, characterized in that: The following steps are involved: Step 1: Automatically meter and convey ingredients, grind the sand to obtain sand powder, and then centrally convey it to the polymer super-dispersed physical reaction polymerization reactor for continuous stirring and dispersion activation treatment, so that the sand powder, organic polymer, and additives are fully reacted and mixed to produce materials; Step 2, melt mixing process, the materials after physical reaction and mixing are continuously transported to the mixing melting equipment, at a temperature of 240-250°C, the mixture of sand powder, organic polymer and additives is melted and dispersed uniformly, and the sand powder is evenly coated by the organic polymer and additives, and then the required shape is produced by the shaping mechanism in the extrusion molding device; Step 3: Extrusion forming sheet process, completing the corrugated board composite forming through the first reinforcement process and the second reinforcement process; Step 4: Cooling and collecting process: after the corrugated board is composite-formed, it is transferred to the cutting device for cooling, cutting and collecting; The step three includes: S1, a first reinforcement step, before the upper layer, the lower layer and the corrugated layer of the corrugated board are extruded and bonded to each other through their own plasticity, a first wiring mechanism in the extrusion molding device lays a zigzag fiber filament on the corrugated layer by reciprocating movement; S2, the second reinforcement process, before the three layers of the corrugated board are laminated, the second wiring mechanism in the extrusion molding device feeds the reinforcement tape between the corrugated layer and the upper layer, and strengthens the connection between the reinforcement tape and the corrugated layer; The first wiring mechanism includes a pay-off assembly arranged on the frame and used to lay the fiber filaments on the corrugated layer in a zigzag manner, and an embedding assembly arranged on the frame and used to embed the two sides of the zigzag fiber filaments into the corrugated layer for fixing; The pay-off assembly includes a second reciprocating screw connected to the frame and having one end connected to the output end of the second motor, a slider connected to the second reciprocating screw, a second wire roller connected to the slider and used to store fiber yarns, a guide hole opened on the slider, a fourth rotating shaft and a fifth rotating shaft connected to the slider and having one end connected to a friction roller, a first ratchet gear and a second ratchet gear respectively connected to the fourth rotating shaft and the fifth rotating shaft, and a wire transmission rack connected to the frame and respectively meshing with the first ratchet gear and the second ratchet gear for transmission; The embedded component includes two groups of slot plates connected to the frame, a knife connected to the slot plate through a second telescopic member and having a first rack connected to one side, a first gear connected to the slot plate through a sixth rotating shaft and meshing with the first rack for transmission, a third ratchet gear connected to the sixth rotating shaft, and two groups of second racks connected to the slider and meshing with the third ratchet gear for transmission.

2. The one-step method for preparing sand-containing hollow corrugated board according to claim 1, characterized in that: In the step 1, stirring is continued for 5-10 minutes.

3. The one-step method for preparing sand-containing hollow corrugated board according to claim 1, characterized in that: The temperature of continuous stirring in the step 1 is controlled within the low temperature range of 75-85°C.

4. The one-step method for preparing sand-containing hollow corrugated board according to claim 1, characterized in that: The melting and melting temperature of the internal mixing and melting equipment is between 240°C and 250°C.

5. The one-step method for preparing sand-containing hollow corrugated board according to claim 1, characterized in that: The internal mixing and melting equipment is a three-screw structure.

6. The one-step method for preparing sand-containing hollow corrugated board according to claim 1, characterized in that: The transverse and longitudinal sections of the corrugated layer are both wavy.

7. The one-step method for preparing sand-containing hollow corrugated board according to claim 1, characterized in that: The second wiring mechanism includes a supporting assembly arranged on the frame and used for conveying the reinforcing belt, a stripping assembly arranged on the frame and used for stripping a plurality of filaments from the reinforcing belt, and a feeding assembly arranged on the frame and used for connecting the reinforcing filaments with the corrugated layer.

8. The one-step method for preparing sand-containing hollow corrugated board according to claim 7, characterized in that: The support assembly comprises a mounting rod connected to a frame, a plurality of first line rollers connected to the mounting rods and used for storing the reinforcing belts, and a first round roller connected to the frame and used for outputting and guiding the reinforcing belts.

9. The one-step method for preparing a sand-containing hollow corrugated board according to claim 8, characterized in that: The stripping assembly includes a trapezoidal guide rail connected to the frame, a stripping claw connected to the trapezoidal guide rail, a connecting rod connected to the stripping claw and having one end connected to a driving rack, a mounting frame connected to the frame through a first telescopic member and having one side connected to a follower rack, a driving gear connected to the mounting frame through a first rotating shaft and respectively meshing with the driving rack and the follower rack for transmission, and a limiting plate connected to the follower rack.

10. The one-step method for preparing sand-containing hollow corrugated board according to claim 9, characterized in that: The feeding assembly includes a plurality of extrusion boxes arranged on the frame corresponding to the reinforcement belts and connected to each other, a first motor connected to the extrusion box and having a sleeve rod connected to the output end, a first reciprocating screw connected to the extrusion box and connected to the sleeve rod, a cutter connected to the first reciprocating screw and located at the outlet position of the extrusion box, a bracket connected to the extrusion box, a fan blade connected to the bracket through a second rotating shaft, a third rotating shaft connected to the bracket, a first belt transmission member whose two ends are respectively connected to the third rotating shaft and the sleeve rod, and a second belt transmission member whose two ends are respectively connected to the third rotating shaft and the second rotating shaft.

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