Extrusion forming process for building intermediate plate

Abstract

The invention discloses an extrusion forming process for a building intermediate plate, relates to the technical field of building materials, and provides a process method for carrying out surface cleaning treatment on a base plate and a covering plate after cutting and carrying out garland treatment on a bonding surface by adopting a special device. And the roughness of a bonding surface is increased through the garland treatment, so that an adhesive can be in full contact with the surface of the material, the bonding strength is remarkably improved, and the bonding firmness is ensured. On the basis, the special device is used for carrying out garland treatment on the bonding surface, so that not only is air exhaust facilitated and formation of bubbles and gaps reduced, but also visual depth reference is provided through formation of textures, and detection of the flatness of the bonding surface is facilitated. And after the covering plate is laid, the base plate and the covering plate are tightly attached through a pre-pressing process and hot press molding, then cooling and curing are conducted, and a high-quality prefabricated plate product is obtained. According to the process, through application of automatic equipment, the processing efficiency is improved, and the problems of poor adhesion, delamination and the like are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of building materials, and in particular relates to an extrusion molding process for a building intermediate plate. Background Art

[0002] In the construction field, the bonding quality between the substrate and the covering board directly affects the performance and service life of the final product during the manufacturing process of building materials such as wall insulation boards, laminate floors, ventilation duct boards, and fireproof boards. Traditional bonding processes usually rely on simple surface treatment and manual application of adhesives, but this method can easily lead to problems such as insufficient bonding strength, uneven bonding surfaces, and uneven adhesive coating.

[0003] In addition, since there may be dust, oil and other pollutants on the surface of the material, bubbles and gaps are easily formed during the pasting process, further reducing the bonding effect. These problems not only affect the structural stability of the product, but may also cause delamination and cracking in long-term use, seriously affecting the durability and safety of building materials.

[0004] At present, there are still some limitations in the traditional processing technology, such as incomplete cleaning, uneven surface treatment, and low automation, which makes it difficult to achieve the ideal bonding effect and low production efficiency. Therefore, a new process method is urgently needed to improve the bonding strength while ensuring the cleanliness of the bonding surface and the uniformity of the surface treatment, and to improve production efficiency through automated equipment to ensure product consistency and high quality.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A building intermediate plate extrusion molding process includes the following molding steps:

[0008] Cutting and surface treatment of substrate and superstrate;

[0009] The bonding surfaces of the base plate and the cover plate are both treated with pattern drawing using a special device;

[0010] The bonding surface of the substrate is coated with adhesive and the covering board is laid;

[0011] After laying the covering board, a special device is used to pre-press the board in a static state to obtain a prefabricated board;

[0012] The cover plate and the base plate are hot pressed into shape, and after forming, they are cooled and solidified to obtain the finished product;

[0013] The finished product is then trimmed, sanded and surface coated.

[0014] Preferably, the surface treatment of the substrate after cutting includes removing surface impurities and dust, and the cut surfaces of the substrate and the cover plate also include grinding and trimming treatment.

[0015] Preferably, the surface pattern treatment of the covering plate includes left oblique texture, right oblique texture and mesh texture.

[0016] Preferably, the pre-compression state uniformly applies local pressure from one side of the substrate to the other side to expel air and fully spread the adhesive.

[0017] Preferably, the hot pressing step is performed by passing the prefabricated board through a hot press at a temperature of 180° C. to 220° C. and applying a constant pressure.

[0018] Preferably, the coating comprises a waterproof coating, a corrosion-resistant coating or a mildew-proof coating.

[0019] Preferably, the dedicated device comprises a processing table on which the substrate or cover plate is placed;

[0020] Support rails are symmetrically fixed on both sides of the processing table, and an inclined slide is slidably provided on the inner wall of the support rail, and a side frame is fixed on the upper surface of the inclined slide;

[0021] A lifting frame is fixed on the upper surface of each side frame, a synchronous roller group is rotatably penetrated through the inner wall of the lifting frame, and a lifting driver for controlling the height change of the synchronous roller group is fixedly connected to the upper surface of the lifting frame;

[0022] One side of the synchronous roller group is driven and matched with a transverse shifting assembly, and the transverse shifting assembly is fixed on the upper surface of the corresponding side support guide rail;

[0023] Both ends of the synchronous roller group are provided with pressure components, and the pressure components are used for the pre-pressing operation.

[0024] Preferably, the lifting frame comprises a guide support frame fixedly connected to the upper surface of the side frame, the inner wall of the guide support frame is provided with a slide seat for vertical limited sliding, both sides of the slide seat are fixedly connected to the side frame, and the side frame slides in close contact with the surface of the guide support frame;

[0025] The upper surface of the lifting driver is fixedly connected with a shelf, a hydraulic rod is fixedly passed through the upper surface of the shelf, a connecting rod is fixedly connected to the bottom end of the hydraulic rod, the connecting rod passes through and slides on the lower surface of the shelf, and the bottom end of the connecting rod is fixedly connected to the upper surface of the slide seat;

[0026] The synchronous roller group includes a scraping roller that penetrates and rotates on the inner walls of the two slides, and the synchronous roller group also includes two brush rollers that rotate on the inner walls of the side frames respectively. A driven wheel is fixed to one end of the two brush rollers, and a driving wheel is fixedly connected to one end of the scraping roller. The driving wheel and the two driven wheels are connected by a transmission belt. A motor is fixed to one side of the corresponding slide, and the output shaft of the motor is fixedly connected to one end of the scraping roller.

[0027] Preferably, the transverse shift assembly includes a reducer penetrating and fixed on the surface of the corresponding side frame, the input end of the reducer is fixedly connected to a transmission wheel matched with a transmission belt, the output shaft of the reducer is fixedly connected to a worm, the surface of the worm is meshed with a worm wheel, the lower surface of the worm wheel is coaxially fixed with a transverse shift gear, the surface of the transverse shift gear is meshed with a rack, and the rack is fixedly connected to the upper surface of the corresponding support guide rail;

[0028] The deflected slide comprises a fixed seat fixedly connected to the surface of the side frame, a rotating shaft is installed on one side of the fixed seat, and the fixed seat is movably connected to a vertical wheel frame through the rotating shaft, and a side wheel frame is fixedly connected to one side of the vertical wheel frame;

[0029] Two springs and buffer blocks are symmetrically fixed to the opposite surfaces of the vertical wheel frame and the fixed seat, the top end of the rotating shaft is rotatably connected to the bottom end of the transverse gear, and one side of the transverse gear is fixed to the surface of the fixed seat through a bearing seat;

[0030] The vertical wheel frame and the lateral wheel frame slide together on the inner wall of the supporting guide rail.

[0031] Preferably, the pressure-applying assembly includes a pressure roller, both ends of the pressure roller are penetrated by a swing arm for rotation, the bottom end of the swing arm is fixedly connected to a balance wheel, the balance wheel penetrates and rotates on the scraping roller, the surface of the balance wheel is movably connected to a deflection rod via a pin, the top end of the deflection rod is movably connected to one side of the shelf via a pin, and a reinforcing beam is commonly fixed to the opposite surfaces of the two swing arms.

[0032] Beneficial effects:

[0033] This solution uses a surface cleaning treatment after cutting the substrate and the cover plate, and then the bonding surface of the substrate and the cover plate are both treated with a special device for drawing. The bonding surface of the substrate is coated with adhesive, and the cover plate is laid. After laying the cover plate, a special device is used to pre-press in a static state to obtain a prefabricated board, and the cover plate and the substrate are hot-pressed and formed, and the finished product is obtained by cooling and solidifying after forming. In this step, the bonding surface is cleaned and drawn by a special device. The staff can intuitively understand whether the bonding surface is flat by checking the depth of the drawing in different areas. At the same time, the texture formed on the bonding surface increases the roughness, which allows the adhesive to contact more surfaces, thereby increasing the contact area between the adhesive and the material. This can enhance the bonding strength and make the bonding more secure. At the same time, the scratched texture helps to expel air when the adhesive is applied, reducing the formation of bubbles and gaps. This is because the texture can provide more paths for the gas to be discharged without being trapped between the bonding surface and the material. This helps prevent localized bond strength from decreasing and improves the overall quality of the bond. The stress to which the penguin-killing material is subjected during long-term use is more easily dispersed, reducing localized stress concentration and the attendant risk of peeling or cracking.

[0034] In view of this, this solution can form a straight line or mesh pattern on the surface through the setting of a special device.

[0035] This solution significantly improves the bonding strength and overall stability by cleaning the surface of the substrate and cover after cutting and accurately drawing the bonding surface, avoiding problems such as poor bonding and delamination. At the same time, through the application of automated equipment, the processing efficiency and finished product consistency are improved, and finally a high-quality prefabricated board product with better durability and service life is obtained.

[0036] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In the attached picture:

[0038] Figure 1 It is a flowchart of the process of the present invention;

[0039] Figure 2 It is a three-dimensional structural schematic diagram of the special device of the present invention;

[0040] Figure 3 It is a three-dimensional structural diagram of the core related components of the special device of the present invention;

[0041] Figure 4 It is a structural schematic diagram of a local section of the present invention;

[0042] Figure 5 This is a schematic diagram of the structure of the transverse movement assembly drive of the present invention;

[0043] Figure 6 It is a schematic structural diagram of the deflected slide explosion of the present invention.

[0044] In the figure: 1. processing table; 2. side frame; 3. deflection slide; 31. fixed seat; 32. rotating shaft; 33. vertical wheel frame; 34. lateral wheel frame; 35. spring; 36. buffer block; 4. synchronous roller group; 41. scraper roller; 42. brush roller; 43. driving wheel; 44. driven wheel; 45. transmission belt; 5. lifting frame; 51. guide support frame; 52. slide seat; 53. side frame; 6. lifting drive; 61. shelf; 62. hydraulic rod; 63. connecting rod; 7. pressure assembly; 71. pressure roller; 72. swing arm; 73. swing wheel; 74. deflection rod; 8. transverse movement assembly; 81. reducer; 82. transmission wheel; 83. worm; 84. worm wheel; 85. transverse movement gear; 86. rack; 9. support rail; 10. reinforcement beam; 11. motor. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0046] like Figures 1 to 6 As shown, a building intermediate plate extrusion molding process includes the following molding steps:

[0047] Cutting and surface treatment of substrate and superstrate;

[0048] The bonding surfaces of the base plate and the cover plate are both treated with pattern drawing using a special device;

[0049] The bonding surface of the substrate is coated with adhesive and the covering board is laid;

[0050] After laying the covering board, a special device is used to pre-press the board in a static state to obtain a prefabricated board;

[0051] The cover plate and the base plate are hot pressed into shape, and after forming, they are cooled and solidified to obtain the finished product;

[0052] The finished product is then trimmed, sanded and surface coated.

[0053] The surface treatment of the substrate after cutting includes removing surface impurities and dust, and the cutting surfaces of the substrate and the cover plate also include grinding and trimming.

[0054] The surface pattern treatment of the covering plate includes left oblique texture, right oblique texture and mesh texture.

[0055] The pre-compression state uniformly applies local pressure from one side of the substrate to the other side to expel air and fully spread the adhesive.

[0056] The hot press forming step is performed by passing the prefabricated board through a hot press at a temperature of 180° C. to 220° C. and applying a constant pressure.

[0057] The coating includes a waterproof coating, a corrosion-resistant coating or an anti-mildew coating.

[0058] In the above process, the forming process of the insulation board of the first embodiment of the present invention is taken as an example. In this solution, a glass magnesium flat plate is used as a substrate. The specific glass magnesium flat plate selected should comply with the building material standard GB / T 23451-2009.

[0059] The cladding board is made of insulation board, which can be polystyrene foam (EPS), extruded polystyrene foam (XPS), rock wool board or polyurethane foam, etc. These materials have excellent thermal insulation performance, light weight and low thermal conductivity.

[0060] in:

[0061] Polystyrene foam (EPS): The thermal conductivity is about 0.038W / m·K, which is suitable for general insulation needs.

[0062] Extruded polystyrene foam (XPS): The thermal conductivity is about 0.030W / m·K, with higher compressive strength and better thermal insulation effect.

[0063] Rock wool board: It has good fire resistance and thermal insulation properties, with a thermal conductivity of about 0.045W / m·K, and is suitable for occasions with high fire protection requirements.

[0064] The glass magnesium plate and the insulation board are cut to the length and width required by the engineering party. After cutting, the surface is polished by an automatic polisher to remove burrs and irregular substances on the surface. After polishing, the plate is cleaned by a cleaning spray device to remove dust, grease and other impurities, providing a good adhesion foundation for subsequent adhesive coating (specifically, it will be further cleaned by a brush roller 42 during the drawing process);

[0065] The bonding surfaces of the glass magnesium plate and the insulation board are both treated with pattern drawing using a special device (the specific process of pattern drawing using the special device is shown below);

[0066] The bonding surface of the substrate is coated with adhesive and the cover plate is laid; the adhesive is evenly coated on the surface of the glass magnesium plate by an automatic coating machine, and the coating thickness is controlled between 0.5mm and 1.0mm. The coating machine is equipped with a coating amount control system, which can adjust the coating amount according to the area of ​​the plate and needs to ensure uniform distribution of the adhesive.

[0067] After laying the cover plate, a special device is used to pre-press the plate in a static state to obtain a prefabricated plate (the specific process of pre-pressing the plate in a static state by a special device is shown below);

[0068] Thermoforming is carried out by a hot press machine, which should have precise temperature and pressure control capabilities. The operating temperature is controlled between 180℃ and 220℃, and the pressure is controlled between 1.0MPa and 2.5MPa.

[0069] After the glass magnesium board and the insulation board are combined, they are pressed in a hot press. The pressing time is controlled within 3 to 5 minutes. The specific time is adjusted according to the properties of the materials and the thickness of the board. The hot pressing process ensures that the materials are fully integrated and improves the strength and durability of the finished board.

[0070] After the hot black board is cooled naturally, the edges are polished to be neat and smooth, and the surface is sprayed with a coating layer;

[0071] The coating layer includes:

[0072] Waterproof coating: Waterproof coating materials can be polyurethane waterproof coating, acrylic waterproof coating or silane modified polymer coating. These coatings have good waterproofness, weather resistance and adhesion. Among them:

[0073] Polyurethane waterproof coating: has high elasticity and excellent durability, suitable for various climate conditions.

[0074] Acrylic waterproof coating: fast drying, UV resistant, suitable for exterior wall and roof waterproofing.

[0075] Silane modified polymer coating: has excellent waterproof performance and environmental protection, suitable for high-demand waterproof occasions.

[0076] Anti-mildew coating: Anti-mildew coating can be acrylic paint or epoxy resin paint containing antibacterial and mildew-proof agents. These coatings have good anti-mildew and antibacterial effects and are suitable for use in humid environments or places exposed to moisture for a long time. Among them:

[0077] Acrylic anti-mildew paint: has good antibacterial properties and good air permeability, suitable for indoor walls and ceilings.

[0078] Epoxy resin anti-mildew paint: chemical corrosion resistant, suitable for humid environments such as basements and bathrooms.

[0079] Coating spraying: Waterproof and mildew-proof coatings are evenly sprayed on the surface of the board through automatic spraying equipment, and the spraying thickness is controlled between 0.2mm and 0.5mm. After spraying, the board enters the drying furnace for drying, and the drying temperature is controlled at 50℃ to 70℃ to ensure the adhesion and durability of the coating.

[0080] Finally, the preparation and forming of the middle plate can be completed by packaging and shipping.

[0081] Specifically, Figures 2 to 6 As shown: the special device comprises a processing table 1 on which a substrate or a cover plate is placed;

[0082] Support rails 9 are symmetrically fixed on both sides of the processing table 1, and a slanted slide 3 is slidably provided on the inner wall of the support rail 9, and a side frame 532 is fixed on the upper surface of the slanted slide 3;

[0083] The upper surface of the side frame 532 is fixed with a lifting frame 5, the inner wall of the lifting frame 5 is penetrated by a synchronous roller group 4 for rotation, and the upper surface of the lifting frame 5 is fixedly connected with a lifting driver 6 for controlling the height change of the synchronous roller group 4;

[0084] One side of the synchronous roller group 4 is equipped with a lateral shifting assembly 8, and the lateral shifting assembly 8 is fixed on the upper surface of the corresponding side support guide rail 9;

[0085] Both ends of the synchronous roller set 4 are provided with a pressure assembly 7, and the pressure assembly 7 is used for the pre-pressing operation.

[0086] The lifting frame 5 includes a guide support frame 51 fixedly connected to the upper surface of the side frame 532, and a slide seat 52 is vertically limited and slidable on the inner wall of the guide support frame 51. The two sides of the slide seat 52 are fixedly connected to the side frame 532, and the side frame 532 slides on the surface of the guide support frame 51;

[0087] The upper surface of the lifting driver 6 is fixedly connected with a shelf 61, the upper surface of the shelf 61 is penetrated and fixed with a hydraulic rod 62, the bottom end of the hydraulic rod 62 is fixedly connected with a connecting rod 63, the connecting rod 63 penetrates and slides on the lower surface of the shelf 61, and the bottom end of the connecting rod 63 is fixedly connected with the upper surface of the slide seat 52;

[0088] The synchronous roller group 4 includes a scraping roller 41 that penetrates and rotates on the inner walls of the two slides 52. The synchronous roller group 4 also includes two brush rollers 42 that rotate on the inner walls of the side frames 532 respectively. A driven wheel 44 is fixed to one end of the two brush rollers 42. A driving wheel 43 is fixedly connected to one end of the scraping roller 41. The driving wheel 43 and the two driven wheels 44 are connected to each other through a transmission belt 45. A motor 11 is fixed to one side of the corresponding slide 52, and the output shaft of the motor 11 is fixedly connected to one end of the scraping roller 41.

[0089] The transverse shift assembly 8 includes a reducer 81 that penetrates and is fixed on the surface of the corresponding side frame 532. The input end of the reducer 81 is fixedly connected to a transmission wheel 82 that cooperates with the transmission belt 45. The output shaft of the reducer 81 is fixedly connected to a worm 83. The surface of the worm 83 is meshed with a worm wheel 84. The lower surface of the worm wheel 84 is coaxially fixed with a transverse shift gear 85. The surface of the transverse shift gear 85 is meshed with a rack 86. The rack 86 is fixedly connected to the upper surface of the corresponding support guide rail 9.

[0090] The transverse movement assembly 8 can match the tilted state of the skewed slide 3 and can still interact with the rack 86 in a specified direction, so that no matter how it is tilted, the transmission effect of the transmission belt 45 can engage the rack 86 to perform horizontal reciprocating motion.

[0091] The deflection slide 3 includes a fixed seat 31 fixedly connected to the surface of the side frame 532, a rotating shaft 32 is installed on one side of the fixed seat 31, and the fixed seat 31 is movably connected to a vertical wheel frame 33 through the rotating shaft 32, and a side wheel frame 34 is fixedly connected to one side of the vertical wheel frame 33;

[0092] Two springs 35 and a buffer block 36 are symmetrically fixed to the opposite surface of the vertical wheel frame 33 and the fixed seat 31. The top end of the rotating shaft 32 is rotatably connected to the bottom end of the transverse gear 85, and one side of the transverse gear 85 is fixed to the surface of the fixed seat 31 through a bearing seat.

[0093] The vertical wheel frame 33 plays a supporting role, and the lateral wheel frame 34 plays a clamping role. The two lateral wheel frames 34 can fit on the inner wall of the support guide rail 9 after tilting, so that the support is in a tilted state without friction, thereby ensuring stable sliding.

[0094] The vertical wheel frame 33 and the lateral wheel frame 34 slide together on the inner wall of the supporting guide rail 9 .

[0095] The pressure assembly 7 includes a pressure roller 71, and swing arms 72 are rotatably passed through both ends of the pressure roller 71. The bottom end of the swing arm 72 is fixedly connected to a balance wheel 73, and the balance wheel 73 passes through and rotates on the scraping roller 41. The surface of the balance wheel 73 is movably connected to a deflection rod 74 through a pin shaft, and the top end of the deflection rod 74 is movably connected to one side of the shelf 61 through a pin shaft. The opposite surfaces of the two swing arms 72 are commonly fixed with a reinforcing beam 10.

[0096] This solution uses a surface cleaning process after cutting the substrate and the cover plate, and then uses a special device to perform a pattern drawing process on the bonding surface of the substrate and the cover plate. The specific pattern drawing process includes:

[0097] The scraping roller 41 and the two brush rollers 42 cooperate with each other through a transmission belt 45. In the reciprocating motion, the directions of rotation are different, so that they can change direction and rotate synchronously. In coordination with the cleaning in different moving directions, a certain slope is presented, which can gather and discharge the dirt.

[0098] When the present solution is used, the hydraulic rod 62 first drives the connecting rod 63, so that the connecting rod 63 and the slide 52 slide downward on the inner wall of the guide support frame 51, so that the scraping roller 41 is in a micro-contact state with the surface of the substrate or the cover plate, and then the motor 11 drives the scraping roller 41 of the synchronous roller group 4 to rotate, so that the scraping roller 41 rotates with the two driven wheels 44 under the transmission action of the driving wheel 43 and the transmission belt 45, and the driven wheel 44 rotates with the two brush rollers 42;

[0099] At the same time, the transmission belt 45 drives the transmission wheel 82 to rotate, so that the speed reducer 81 reduces the speed to a certain extent, and then drives the worm 83 to rotate slowly, and the worm 83 drives the worm wheel 84 to rotate slowly, and at the same time, the worm wheel 84 drives the lower transverse gear 85 to rotate and mesh with the rack 86 to start to move slowly;

[0100] When the side frame 532 on one side starts to move, the side frame 532 on the other side is in a static state without power. As the side frame 532 on one side continues to move, the whole begins to be tilted, and pulls the side frame 532 on the other side to start moving. At the same time, the fixed seat 31 and the side frame 532 are in a tilted state. The fixed seat 31 is in a deflected state with the vertical wheel frame 33 through the rotating shaft 32. A lateral wheel frame 34 is fixed to one side of the vertical wheel frame 33. The vertical wheel frame 33 and the lateral wheel frame 34 both slide on the inner wall of the vertical guide rail, so that in the overall tilted state, the vertical wheel frame 33 and the lateral wheel frame 34 are still in a horizontal stable sliding state supporting the inner wall of the guide rail 9.

[0101] When moving in an inclined state, the surface of the substrate or cover plate is first cleaned by the brush roller 42 on one side, and then the scraping roller 41 forms fine scratches in an inclined state (drawing treatment), and the brush roller 42 on the other side cleans the scratched surface. When it moves to the end, the motor 11 drives in the reverse direction, so that the transverse movement component 8 starts to drive in the reverse direction, and then the inclined state is flipped to complete the scraping treatment in another inclined state, so that the fine scratches are staggered to form a dense staggered drawing texture;

[0102] When the patterning treatment is completed and the surface is cleaned at the same time, adhesive is applied to the bonding surface, and the cover plate with the same patterning treatment is attached to the surface. At this time, the hydraulic rod 62 moves the pull rod upward continuously, so that the scraping roller 41 and the brush roller 42 move upward and completely leave the predetermined scraping height. As the connecting rod 63 moves upward continuously, the two ends of the scraping roller 41 move upward with the swing wheels 73 rotating at both ends. The upward movement of the swing wheel 73 does not change the position of the top end of the deflection rod 74, so that the bottom end of the deflection rod 74 presses against the swing wheel 73 and starts to deflect. When the swing wheel 73 deflects, it deflects the swing arm 72 fixed on the surface until the swing arm 72 attaches the pressure roller 71 to the surface of the cover plate, and continuously applies pressure during the continuous contraction of the hydraulic rod 62, so that the pressure roller 71 applies sufficient pre-pressure during the bonding. Then the motor 11 is started, and the whole begins to tilt and rotate. The pressure roller 71 performs local and continuous pressurization during movement to ensure stable bonding and obtain the prefabricated plate.

[0103] The prefabricated board is then hot-pressed into shape by a hot press, and finally cooled naturally to obtain the finished product. The processing is completed by polishing the surface and applying a coating according to actual needs.

[0104] This solution significantly improves the bonding strength between the substrate and the cover plate by cleaning the surface after cutting, and using a special device to draw the adhesive surface to form a fine and staggered scratch texture. This solution uses automated equipment such as a hydraulic rod 62, a scraping roller 41, a brush roller 42 and a pressure roller 71 to accurately control the uniformity of the drawing process and the adhesion effect of the adhesive. At the same time, the surface is cleaned synchronously during the drawing process to ensure that the adhesive surface is clean and pollution-free, and further optimize the bonding effect. Subsequently, pressure is applied by the pressure roller 71 and hot pressing is performed to ensure the stable fit between the substrate and the cover plate, avoiding delamination or cracking caused by thermal expansion or contraction. Finally, through the processing of the hot press and natural cooling, a prefabricated board product with high adhesion and flatness is obtained, which provides an excellent foundation for subsequent coating processing. This solution not only improves the bonding strength and overall stability, but also improves the processing efficiency and finished product consistency, ensuring the high quality and long-term durability of the prefabricated board.

[0105] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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 building intermediate plate extrusion molding process, characterized in that: The molding process includes the following steps: Cutting and surface treatment of substrate and superstrate; The bonding surfaces of the base plate and the cover plate are both treated with pattern drawing using a special device; The bonding surface of the substrate is coated with adhesive and the covering board is laid; After laying the covering board, a special device is used to pre-press the board in a static state to obtain a prefabricated board; The cover plate and the base plate are hot pressed into shape, and after forming, they are cooled and solidified to obtain the finished product; The finished product is then trimmed, sanded and surface coated.

2. A building intermediate plate extrusion molding process according to claim 1, characterized in that: The surface treatment of the substrate after cutting includes removing surface impurities and dust, and the cutting surfaces of the substrate and the cover plate also include grinding and trimming.

3. The extrusion molding process of a building intermediate plate according to claim 1 is characterized in that: The surface pattern treatment of the covering plate includes left oblique texture, right oblique texture and mesh texture.

4. The extrusion molding process of a building intermediate plate according to claim 1, characterized in that: The pre-compression state uniformly applies local pressure from one side of the substrate to the other side to expel air and fully spread the adhesive.

5. The extrusion molding process of a building intermediate plate according to claim 1, characterized in that: The hot press forming step is performed by passing the prefabricated board through a hot press at a temperature of 180° C. to 220° C. and applying a constant pressure.

6. The extrusion molding process of a building intermediate plate according to claim 1, characterized in that: The coating includes a waterproof coating, a corrosion-resistant coating or an anti-mildew coating.

7. The extrusion molding process of a building intermediate plate according to claim 1, characterized in that: The special device comprises a processing table (1) on which the base plate or the cover plate is placed; Support rails (9) are symmetrically fixed on both sides of the processing table (1), an inner wall of the support rail (9) is slidably provided with an inclined slide (3), and the upper surface of the inclined slide (3) is fixed with a side frame (53) (2); A lifting frame (5) is fixed on the upper surface of each of the side frames (53) (2); a synchronous roller group (4) is rotatably penetrated through the inner wall of the lifting frame (5); and a lifting driver (6) for controlling the height change of the synchronous roller group (4) is fixedly connected to the upper surface of the lifting frame (5); One side of the synchronous roller group (4) is driven by a lateral shifting assembly (8), and the lateral shifting assembly (8) is fixed on the upper surface of the corresponding side support guide rail (9); Both ends of the synchronous roller group (4) are provided with a pressure component (7), and the pressure component (7) is used for the pre-pressing operation.

8. The extrusion molding process of a building intermediate plate according to claim 7, characterized in that: The lifting frame (5) comprises a guide support frame (51) fixedly connected to the upper surface of the side frame (53) (2), the inner wall of the guide support frame (51) is provided with a slide seat (52) for vertical limited sliding, both sides of the slide seat (52) are fixedly connected to the side frame (53) (2), and the side frame (53) (2) is slidably attached to the surface of the guide support frame (51); The upper surface of the lifting driver (6) is fixedly connected to a shelf (61), a hydraulic rod (62) is fixedly passed through the upper surface of the shelf (61), a connecting rod (63) is fixedly connected to the bottom end of the hydraulic rod (62), the connecting rod (63) passes through and slides on the lower surface of the shelf (61), and the bottom end of the connecting rod (63) is fixedly connected to the upper surface of the slide seat (52); The synchronous roller group (4) comprises a scraping roller (41) which penetrates and rotates on the inner walls of two slide seats (52), and the synchronous roller group (4) also comprises two brush rollers (42) which respectively rotate on the inner walls of the side frames (53) (2), a driven wheel (44) being fixed to one end of the two brush rollers (42), a driving wheel (43) being fixedly connected to one end of the scraping roller (41), the driving wheel (43) being connected to the two driven wheels (44) by a transmission belt (45), a motor (11) being fixed to one side of the corresponding slide seat (52), and an output shaft of the motor (11) being fixedly connected to one end of the scraping roller (41).

9. The extrusion molding process of a building intermediate plate according to claim 8, characterized in that: The transverse shift assembly (8) includes a reducer (81) which penetrates and is fixed on the surface of the corresponding side frame (53) (2), the input end of the reducer (81) is fixedly connected to a transmission wheel (82) which is matched with the transmission belt (45), the output shaft of the reducer (81) is fixedly connected to a worm (83), the surface of the worm (83) is meshed with a worm wheel (84), the lower surface of the worm wheel (84) is coaxially fixed with a transverse shift gear (85), the surface of the transverse shift gear (85) is meshed with a rack (86), and the rack (86) is fixedly connected to the upper surface of the corresponding support guide rail (9); The deflection slide (3) comprises a fixed seat (31) fixedly connected to the surface of the side frame (53) (2), a rotating shaft (32) is installed on one side of the fixed seat (31), and the fixed seat (31) is movably connected to a vertical wheel frame (33) through the rotating shaft (32), and a lateral wheel frame (34) is fixedly connected to one side of the vertical wheel frame (33); Two springs (35) and a buffer block (36) are symmetrically fixed to the opposite surfaces of the vertical wheel frame (33) and the fixed seat (31); the top end of the rotating shaft (32) is rotatably connected to the bottom end of the transverse gear (85), and one side of the transverse gear (85) is fixed to the surface of the fixed seat (31) through a bearing seat; The vertical wheel frame (33) and the lateral wheel frame (34) slide together on the inner wall of the supporting guide rail (9).

10. The extrusion molding process of a building intermediate plate according to claim 9, characterized in that: The pressure-applying assembly (7) comprises a pressure roller (71), both ends of the pressure roller (71) are penetrated by swing arms (72) for rotation, the bottom end of the swing arm (72) is fixedly connected to a balance wheel (73), the balance wheel (73) penetrates and rotates on the scraping roller (41), the surface of the balance wheel (73) is movably connected to a deflection rod (74) via a pin shaft, the top end of the deflection rod (74) is movably connected to one side of the shelf (61) via a pin shaft, and the opposite surfaces of the two swing arms (72) are commonly fixed with a reinforcing beam (10).

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