Mould pressing device and technology based on honeycomb paperboard and glass fiber compounding

Abstract

The invention discloses a mold pressing device and process based on honeycomb paperboard and glass fiber compositing, and relates to the technical field of composite material mold pressing, the mold pressing device comprises a rack, a machine cover is fixedly installed above the rack, three mold pressing assemblies of the same structure are sequentially arranged on the rack in the feeding direction, and each mold pressing assembly comprises an upper mold plate and a lower mold plate; and the lower template comprises a lower bottom plate, a lower heating assembly with the same structure as the upper heating assembly is arranged in the lower template, and when the lower template is driven to a mold pressing station, the upper template and the lower template are accurately and correspondingly arranged to form a closed mold pressing space so as to complete the composite mold pressing operation of the honeycomb paperboard and the two layers of glass fibers. The three mold pressing assemblies of the same structure are arranged on the rack in the feeding direction, continuous composite mold pressing operation of honeycomb paperboards and glass fibers can be achieved, the production efficiency is greatly improved, meanwhile, the three mold pressing assemblies are consistent in structure and convenient to debug and maintain, and the equipment operation and maintenance cost is reduced.

Description

A molding device and process based on honeycomb paperboard and glass fiber composite Technical Field

[0001] This invention relates to the field of composite material molding technology, specifically to a molding device and process based on honeycomb paperboard and glass fiber composite. Background Technology

[0002] Honeycomb paperboard, as a lightweight, high-strength, and environmentally friendly material, has the characteristics of being lightweight, sound-insulating, heat-insulating, and having excellent cushioning properties. Fiberglass material, on the other hand, has the advantages of high strength, corrosion resistance, and aging resistance. The honeycomb paperboard-fiberglass composite material formed by combining the two takes into account the dual requirements of lightweight and high strength, and is gradually replacing traditional metal and wood materials in various industries.

[0003] Existing honeycomb paperboard and fiberglass composite processing equipment mostly suffer from low production efficiency and insufficient molding precision. Most of the equipment adopts a single molding unit design, which cannot achieve continuous production, resulting in long production cycles and making it difficult to adapt to the needs of industrial mass production. In addition, it does not have a heating function, which cannot achieve uniform heating of the laminated structure, resulting in insufficient melting and uneven penetration of thermoplastic adhesives, which in turn affects the composite strength of honeycomb paperboard and fiberglass and easily leads to defects such as product delamination and delamination.

[0004] Therefore, it is necessary to invent a molding device and process based on honeycomb paperboard and glass fiber composite to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a molding device and process based on honeycomb paperboard and glass fiber composite, so as to solve the problems of low equipment production efficiency, insufficient molding accuracy, lack of heating function leading to insufficient adhesive melting, and easy delamination of products in the above-mentioned technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a molding device and process based on honeycomb paperboard and glass fiber composite, comprising a frame, a cover fixedly mounted on the top of the frame, and three molding components with identical structures arranged sequentially along the feeding direction on the frame. Each molding component includes an upper template and a lower template. The lower template includes a lower base plate. An upper heating component is arranged inside the upper template, and the upper heating component includes an upper heating plate fixedly installed on the bottom surface of the upper top plate. A lower heating component with the same structure as the upper heating component is arranged inside the lower template, and the lower heating component includes a lower heating plate fixedly installed on the top surface of the lower base plate. When the lower template is driven to the molding station, the upper template and the lower template are precisely aligned to form a closed molding space to complete the composite molding operation of honeycomb paperboard and two layers of glass fiber.

[0007] Preferably, the upper template includes an upper top plate and a hydraulic cylinder, the hydraulic cylinder is fixedly installed inside the machine cover, and the output end of the hydraulic cylinder is fixedly connected to the center of the top surface of the upper top plate.

[0008] Preferably, guide sleeves are fixedly installed around the top plate, the guide sleeves are slidably sleeved on the guide posts, and the guide posts are vertically fixedly installed on the frame.

[0009] Preferably, four sliding blocks are fixedly installed on the bottom surface of the lower base plate. The four sliding blocks are arranged in a rectangular shape. The sliding blocks are slidably embedded in the slide rail. The slide rail is fixedly installed on the frame and parallel to the feeding direction, so as to realize the smooth sliding of the lower template along the feeding direction.

[0010] Preferably, a cylinder is fixedly installed on the rear side of the frame, and the output end of the cylinder is fixedly connected to one end of the lower base plate.

[0011] Preferably, the cylinder drives the lower template to slide along the slide rail, and when the lower template is driven to the molding station, the lower template is exactly below the upper template.

[0012] Preferably, the upper heating plate has a groove inside, and an upper electric heating wire is installed in the groove. An upper heater is fixedly installed on the side wall of the upper heating plate. The upper heater is electrically connected to the upper electric heating wire. An upper temperature sensor is also installed in the groove of the upper heating plate. An upper controller is fixedly installed on the outer front wall of the upper heating plate. The upper controller is electrically connected to the upper heater and the upper temperature sensor respectively.

[0013] Preferably, the lower heating plate has a groove inside, and a lower electric heating wire is installed in the groove. A lower heater is fixedly installed on the side wall of the lower heating plate. The lower heater is electrically connected to the lower electric heating wire. A lower temperature sensor is also installed in the groove of the lower heating plate. A lower controller is fixedly installed on the outer front wall of the lower heating plate. The lower controller is electrically connected to the lower heater and the lower temperature sensor respectively.

[0014] Preferably, the process includes the following steps: S1: Prepare honeycomb paperboard, two layers of fiberglass, and thermoplastic adhesive. Dry the honeycomb paperboard to remove moisture. Cut the fiberglass and adhesive to the size matching the lower template. Set aside. S2: Start the molding device and preset the heating temperatures of the upper and lower heating plates using the upper and lower controllers. S3: Lay out the layers. Drive the lower template to the feeding station using a cylinder. Lay the lower layer of fiberglass, adhesive, honeycomb paperboard, adhesive, and upper layer of fiberglass on the surface of the lower heating plate in sequence to complete the laying of the laminated structure in the groove of the lower template. S4: Drive the lower template carrying the laminated structure to slide to the feeding station using a cylinder. S5: At the molding station, the lower mold plate is positioned directly below the upper mold plate. The hydraulic cylinder is activated to drive the upper mold plate to descend and close with the lower mold plate, applying a preset molding pressure. Simultaneously, the upper and lower heating components heat the laminated structure and maintain the temperature for a preset time, allowing the adhesive to melt and penetrate, achieving a firm composite of the honeycomb paperboard and two layers of fiberglass. S6: After molding and heat preservation are completed, the mold closing pressure remains unchanged. The upper and lower controllers control the upper and lower heating components to stop heating. After the laminated structure cools to the preset temperature, the hydraulic cylinder is activated to drive the upper mold plate to rise and open the mold. S7: The lower mold plate is slid back to the original feeding station by the cylinder, and the composite molded product is removed.

[0015] In the above technical solution, the technical effects and advantages provided by the present invention are as follows: 1. By setting three identical molding components on the frame along the feeding direction, the present invention can realize continuous composite molding of honeycomb paperboard and glass fiber, which greatly improves production efficiency. At the same time, the three molding components have the same structure, which is convenient for debugging and maintenance, and reduces equipment operation and maintenance costs; 2. The present invention uses a sliding lower template structure design to realize flexible adjustment of the lower template position. This not only allows the lower template to switch smoothly between the feeding station and the molding station, simplifying the operation process of layering and finished product unloading, but also allows the lower template to be away from the core molding area when manually feeding, effectively avoiding the risk of interference between manual operation and molding action, significantly improving the safety of the manual feeding process and reducing operational safety hazards; 3. By setting up upper and lower heating components with identical structures, and with the synergistic effect of upper and lower controllers and upper and lower temperature sensors, the present invention can realize precise control of molding temperature, ensuring that the thermoplastic adhesive fully melts and penetrates, improving the composite strength of honeycomb paperboard and glass fiber, and avoiding defects such as product deformation and delamination caused by uneven temperature. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall front view structure of the present invention; Figure 3 is a schematic diagram of the three-dimensional structure of the hydraulic cylinder of the present invention; Figure 4 is a schematic diagram of the three-dimensional structure of the upper heating component of the present invention; Figure 5 is a schematic diagram of the three-dimensional structure of the lower template of the present invention; Figure 6 is a schematic diagram of the three-dimensional structure of the cylinder of the present invention; Figure 7 is a schematic diagram of the three-dimensional structure of the lower heating component of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Machine cover; 3. Molding assembly; 301. Upper template; 3011. Upper top plate; 3012. Hydraulic cylinder; 3013. Guide sleeve; 3014. Guide post; 302. Lower template; 3021. Lower base plate; 3022. Slide block; 3023. Slide rail; 3024. Cylinder; 4. Upper heating assembly; 401. Upper heating plate; 402. Upper electric heating wire; 403. Upper heater; 404. Upper temperature sensor; 405. Upper controller; 5. Lower heating assembly; 501. Lower heating plate; 502. Lower electric heating wire; 503. Lower heater; 504. Lower temperature sensor; 505. Lower controller. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] This invention provides a molding device and process based on honeycomb paperboard and glass fiber composite, as shown in Figures 1-7. It includes a frame 1, with a cover 2 fixedly mounted on the top of the frame 1. Three molding components 3 with the same structure are arranged sequentially on the frame 1 along the feeding direction. Each molding component 3 includes an upper template 301 and a lower template 302. The lower template 302 includes a lower base plate 3021. An upper heating component 4 is arranged inside the upper template 301. The upper heating component 4 includes an upper heating plate 401 fixedly installed on the bottom surface of the upper top plate 3011. A lower heating component 5 with the same structure as the upper heating component 4 is arranged inside the lower template 302. The lower heating component 5 includes a lower heating plate 501 fixedly installed on the top surface of the lower base plate 3021. When the lower template 302 is driven to the molding station, the upper template 301 and the lower template 302 are precisely aligned to form a closed molding space to complete the composite molding operation of honeycomb paperboard and two layers of glass fiber.

[0020] In this embodiment, three identical molding components 3 are arranged along the feeding direction, which can realize continuous composite molding of honeycomb paperboard and glass fiber. When the previous molding unit completes molding, the next molding unit can be laid in layers simultaneously, which greatly shortens the production cycle and improves production efficiency. Moreover, each molding unit operates independently. If one molding component 3 fails, the other two can operate normally, avoiding the shutdown of the entire production line due to the failure of a single component and improving production stability.

[0021] The upper template 301 includes an upper top plate 3011 and a hydraulic cylinder 3012. The hydraulic cylinder 3012 is fixedly installed inside the machine cover 2, and the output end of the hydraulic cylinder 3012 is fixedly connected to the center of the top surface of the upper top plate 3011. Guide sleeves 3013 are fixedly installed around the upper top plate 3011. The guide sleeves 3013 are slidably sleeved on the guide posts 3014. The guide posts 3014 are vertically fixedly installed on the machine frame 1.

[0022] In this embodiment, the hydraulic cylinder 3012 serves as the power source for the upper template 301, providing stable vertical pressure to drive the upper top plate 3011 to descend smoothly, achieving mold closing with the lower template 302. This provides sufficient molding pressure for the composite molding process, ensuring that the glass fiber and honeycomb paperboard are firmly bonded after the adhesive melts. Furthermore, the guide sleeve 3013 and the guide post 3014 slide together to provide precise guidance for the lifting and lowering of the upper top plate 3011, preventing the upper template 301 from shifting or shaking during the lifting and lowering process.

[0023] Four slide blocks 3022 are fixedly installed on the bottom surface of the lower base plate 3021. The four slide blocks 3022 are arranged in a rectangular shape and are slidably embedded in the slide rail 3023. The slide rail 3023 is fixedly installed on the frame 1 and parallel to the feeding direction to realize the smooth sliding of the lower template 302 along the feeding direction. A cylinder 3024 is fixedly installed on the rear side of the frame 1. The output end of the cylinder 3024 is fixedly connected to one end of the lower base plate 3021. The cylinder 3024 drives the lower template 302 to slide along the slide rail 3023. When the lower template 302 is driven to the molding station, the lower template 302 is exactly below the upper template 301.

[0024] In this embodiment, four rectangularly distributed slide blocks 3022 cooperate with slide rails 3023 to achieve smooth sliding of the lower template 302 along the feeding direction, reduce friction during the sliding process, ensure smooth movement of the lower template 302, and avoid jamming. The cylinder 3024 provides stable power for the sliding of the lower template 302, enabling the lower template 302 to quickly switch between the feeding station and the molding station, simplifying the operation process of layer laying and finished product unloading, and improving the convenience of operation. Furthermore, the sliding design of the lower template 302 allows it to be moved to the feeding station away from the core molding area during manual feeding, avoiding interference between manual operation and molding action, significantly improving feeding safety and reducing operational safety hazards.

[0025] The upper heating plate 401 has a groove inside, and an upper electric heating wire 402 is installed in the groove. An upper heater 403 is fixedly installed on the side wall of the upper heating plate 401. The upper heater 403 is electrically connected to the upper electric heating wire 402. An upper temperature sensor 404 is also installed in the groove of the upper heating plate 401. An upper controller 405 is fixedly installed on the outer front wall of the upper heating plate 401. The upper controller 405 is electrically connected to the upper heater 403 and the upper temperature sensor 404 respectively.

[0026] In this embodiment, the upper heating wire 402 is evenly laid in the groove, which can achieve uniform heating of the upper heating plate 401, ensuring uniform temperature of the upper surface of the laminated structure during molding and avoiding local overheating or underheating. The upper heater 403 provides stable power to the upper heating wire 402, and the upper temperature sensor 404 detects the temperature of the upper heating plate 401 in real time and transmits the temperature signal to the upper controller 405 to achieve real-time temperature monitoring. This ensures that the thermoplastic adhesive is fully melted and penetrated, improving the composite strength of glass fiber and honeycomb paperboard, while avoiding carbonization and deformation of the product due to excessively high temperature, or insufficient melting and weak adhesion of the adhesive due to excessively low temperature.

[0027] The lower heating plate 501 has a groove inside, and a lower electric heating wire 502 is installed in the groove. A lower heater 503 is fixedly installed on the side wall of the lower heating plate 501. The lower heater 503 is electrically connected to the lower electric heating wire 502. A lower temperature sensor 504 is also installed in the groove of the lower heating plate 501. A lower controller 505 is fixedly installed on the front wall of the lower heating plate 501. The lower controller 505 is electrically connected to the lower heater 503 and the lower temperature sensor 504 respectively.

[0028] In this embodiment, the lower heating component 5 and the upper heating component 4 have the same structure and specifications, which can realize synchronous and uniform heating of the upper and lower surfaces of the laminated structure, ensure that the internal temperature of the laminated structure is consistent, and allow the thermoplastic adhesive to melt and penetrate from both the upper and lower sides at the same time, thereby improving the composite uniformity and composite strength.

[0029] The working principle of this invention includes the following steps: Step 1: Prepare honeycomb paperboard, two layers of fiberglass, and thermoplastic adhesive. Dry the honeycomb paperboard to remove moisture. Cut the fiberglass and adhesive to the size matching the lower template 302. Set aside. Step 2: Start the molding device. Preset the heating temperatures of the upper heating plate 401 and lower heating plate 501 using the upper controller 405 and lower controller 505. Step 3: Lay the layers together. Drive the lower template 302 to the feeding station using the cylinder 3024. Lay the lower layer of fiberglass, adhesive, honeycomb paperboard, adhesive, and upper layer of fiberglass on the surface of the lower heating plate 501 in sequence to complete the laying of the laminated structure in the groove of the lower template 302. Step 4: Drive the lower template 302 carrying the laminated structure to slide to the feeding station using the cylinder 3024. Step 5: After molding and heat preservation, the mold closing pressure remains unchanged. The upper heating component 4 and lower heating component 5 are controlled by the upper controller 405 and lower controller 505 to stop heating. After the laminated structure cools to the preset temperature, the hydraulic cylinder 3012 is activated to drive the upper mold 301 to rise and open the mold. Step 6: The lower mold 302 is driven by the cylinder 3024 to slide back to the original feeding position and the composite product is taken out.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding device based on honeycomb paperboard and glass fiber composite, comprising a frame (1), characterized in that: A cover (2) is fixedly installed on the top of the frame (1). Three molding components (3) with the same structure are arranged sequentially on the frame (1) along the feeding direction. Each molding component (3) includes an upper template (301) and a lower template (302). The lower template (302) includes a lower base plate (3021). An upper heating component (4) is arranged inside the upper template (301). The upper heating component (4) includes an upper heating plate (401) fixedly installed on the bottom surface of the upper top plate (3011). A lower heating component (5) with the same structure as the upper heating component (4) is arranged inside the lower template (302). The lower heating component (5) includes a lower heating plate (501) fixedly installed on the top surface of the lower base plate (3021). When the lower template (302) is driven to the molding station, the upper template (301) and the lower template (302) are precisely aligned to form a closed molding space to complete the composite molding operation of honeycomb paperboard and two layers of glass fiber.

2. The molding device based on honeycomb paperboard and glass fiber composite according to claim 1, characterized in that: The upper template (301) includes an upper top plate (3011) and a hydraulic cylinder (3012). The hydraulic cylinder (3012) is fixedly installed inside the machine cover (2), and the output end of the hydraulic cylinder (3012) is fixedly connected to the center of the top surface of the upper top plate (3011).

3. The molding device based on honeycomb paperboard and glass fiber composite according to claim 2, characterized in that: The top plate (3011) is fixedly installed with guide sleeves (3013) around its perimeter. The guide sleeves (3013) are slidably sleeved on the guide posts (3014), and the guide posts (3014) are vertically fixedly installed on the frame (1).

4. The molding device based on honeycomb paperboard and glass fiber composite according to claim 1, characterized in that: The bottom surface of the lower base plate (3021) is fixedly installed with four slide blocks (3022). The four slide blocks (3022) are arranged in a rectangular shape. The slide blocks (3022) are slidably embedded in the slide rail (3023). The slide rail (3023) is fixedly installed on the frame (1) and parallel to the feeding direction, so as to realize the smooth sliding of the lower template (302) along the feeding direction.

5. A molding device based on honeycomb paperboard and glass fiber composite according to claim 4, characterized in that: A cylinder (3024) is fixedly installed on the rear side of the frame (1), and the output end of the cylinder (3024) is fixedly connected to one end of the lower base plate (3021).

6. A molding device based on honeycomb paperboard and glass fiber composite according to claim 5, characterized in that: The cylinder (3024) drives the lower template (302) to slide along the slide rail (3023). When the lower template (302) is driven to the molding station, the lower template (302) is located directly below the upper template (301).

7. The molding device based on honeycomb paperboard and glass fiber composite according to claim 1, characterized in that: The upper heating plate (401) has a groove inside, and an upper electric heating wire (402) is installed in the groove. An upper heater (403) is fixedly installed on the side wall of the upper heating plate (401). The upper heater (403) is electrically connected to the upper electric heating wire (402). An upper temperature sensor (404) is also installed in the groove of the upper heating plate (401). An upper controller (405) is fixedly installed on the front wall of the upper heating plate (401). The upper controller (405) is electrically connected to the upper heater (403) and the upper temperature sensor (404) respectively.

8. A molding device based on honeycomb paperboard and glass fiber composite according to claim 1, characterized in that: The lower heating plate (501) has a groove inside, and a lower electric heating wire (502) is installed in the groove. A lower heater (503) is fixedly installed on the side wall of the lower heating plate (501). The lower heater (503) is electrically connected to the lower electric heating wire (502). A lower temperature sensor (504) is also installed in the groove of the lower heating plate (501). A lower controller (505) is fixedly installed on the front wall of the lower heating plate (501). The lower controller (505) is electrically connected to the lower heater (503) and the lower temperature sensor (504) respectively.

9. A process for using a molding apparatus based on honeycomb paperboard and glass fiber composite as described in any one of claims 1-8, characterized in that, Includes the following steps: S1: Prepare honeycomb paperboard, two layers of fiberglass and thermoplastic adhesive. Dry the honeycomb paperboard to remove moisture. Cut the fiberglass and adhesive to the size of the lower template (302) for later use. S2: Start the molding device and preset the heating temperatures of the upper heating plate (401) and lower heating plate (501) through the upper controller (405) and lower controller (505). S3: Lay the layers. Drive the lower template (302) to the feeding station through the cylinder (3024). Lay the lower layer of fiberglass, adhesive, honeycomb paperboard, adhesive and upper layer of fiberglass on the surface of the lower heating plate (501) in sequence to complete the laying of the layered structure in the groove of the lower template (302). S4: Drive the lower template (302) carrying the layered structure to the molding station through the cylinder (3024) so ​​that the lower template (302) can be laid in the groove of the lower template (302). 2) Located directly below the upper template (301), start the hydraulic cylinder (3012) to drive the upper template (301) to descend and close with the lower template (302), apply the preset mold pressure, and at the same time heat the laminated structure through the upper heating component (4) and the lower heating component (5) for a preset time to allow the adhesive to melt and penetrate, so as to achieve a firm composite of honeycomb paperboard and two layers of glass fiber; S5: After the molding and heat preservation is completed, keep the mold closing pressure unchanged, and control the upper heating component (4) and the lower heating component (5) to stop heating through the upper controller (405) and the lower controller (505). After the laminated structure cools down to the preset temperature, start the hydraulic cylinder (3012) to drive the upper template (301) to rise and open the mold; S6: Drive the lower template (302) to slide to the original feeding station through the cylinder (3024) and take out the composite molded product.

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