Energy-saving and efficient controllable high-temperature foaming production system

Abstract

The application discloses an energy-saving and high-efficiency controllable high-temperature foaming production system, and relates to the technical field of foaming equipment.The high-temperature foaming production system comprises a tunnel furnace for providing temperature for foaming, a heating unit for providing heating heat is arranged on the tunnel furnace, a heat insulation layer for reducing heat loss is arranged outside the tunnel furnace, and a temperature sensor is arranged inside the tunnel furnace; the system further comprises a foaming positioning block for passing through the internal passage of the tunnel furnace, and the raw material is fixed through the foaming positioning block.The application is designed according to the existing situation, the foaming material is driven to move in the tunnel furnace through screw transmission, the movement is more stable, the foaming material can be continuously turned over during foaming, the foaming material is heated more uniformly, the foaming quality is ensured, the foaming material can be tightly pressed during foaming, the flatness of the plate is ensured, the unloading can be automatically completed after the foaming is completed, and the processing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of foaming equipment technology, specifically an energy-saving, highly efficient and controllable high-temperature foaming production system. Background Technology

[0002] PMI foam, short for polymethacrylamide foam, is a lightweight, high-strength foam plastic primarily used in aerospace, radar antenna covers, CT medical bed boards, wind turbine helicopter blades, and high-speed trains. It is currently the hardest structural material of its density. The industrial production of PMI foam typically involves polymerizing raw materials to obtain copolymer resins, then heating and foaming the resulting copolymer matrix resin in a tunnel furnace. Existing foaming methods place the foamed material on a permeable iron plate and heat it with hot air from inside the tunnel furnace. This heating method makes it difficult to control the uniformity of heating the foamed material, particularly the upper and lower surfaces, potentially leading to severe deformation during preheating. Furthermore, this blowing method easily causes hot air to circulate erratically within the furnace, facilitating heat exchange with the outside environment. Therefore, this paper proposes an energy-saving, highly efficient, and controllable high-temperature foaming production system that eliminates the drawbacks of existing equipment. Summary of the Invention

[0003] The purpose of this invention is to provide an energy-saving, efficient and controllable high-temperature foaming production system to solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An energy-saving, efficient, and controllable high-temperature foaming production system includes a tunnel furnace for providing temperature for foaming. The tunnel furnace is equipped with a heating unit for providing heating heat. The outside of the tunnel furnace is equipped with a heat insulation layer to reduce heat loss. A temperature sensor is installed inside the tunnel furnace. The system also includes a foaming positioning block for passing through the internal channel of the tunnel furnace. The foaming positioning block fixes the raw material. The foaming positioning block is connected to a displacement pusher for moving it along the internal channel of the tunnel furnace. The side of the tunnel furnace is also equipped with a flipping mechanism for flipping the foaming positioning block. The heating unit uses gas combustion heating, which is more energy-efficient and reduces heating costs compared to traditional electric heating.

[0006] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0007] In one alternative embodiment: the foam positioning block includes a first clamping plate and a second clamping plate arranged in parallel. The surfaces of the first clamping plate and the second clamping plate are distributed with grid holes for ventilation. The first clamping plate and the second clamping plate are made of metal material, which can better complete heat transfer. A clamping telescopic rod is provided on one side of the second clamping plate and the first clamping plate. The two output ends of the clamping telescopic rod are respectively connected to the first clamping plate and the second clamping plate.

[0008] In one alternative embodiment, a pressure sensor is further provided between the output end of the clamping telescopic rod and the first clamping plate and the second clamping plate.

[0009] In one alternative: the displacement pusher includes a drive shaft connected to a clamping telescopic rod, the other end of the drive shaft being connected to an I-shaped slider, the I-shaped slider being slidably mounted on a guide rail frame, the guide rail frame having a sliding notch to facilitate the sliding of the I-shaped slider, the side of the tunnel furnace having an opening to facilitate the passage of the drive shaft, and the guide rail frame having a threaded pusher for driving the I-shaped slider to move along the sliding notch.

[0010] In one alternative embodiment: the threaded pusher includes a sliding surface disposed on the upper end of the guide rail frame, a threaded block is slidably disposed on the sliding surface, one side of the threaded block is connected and fixed to an I-shaped slider, a transmission screw is fitted in the transmission screw hole on the threaded block, one end of the transmission screw is rotatably connected to a fixed block on the guide rail frame, and the other end of the transmission screw is connected to a drive motor for driving its rotation, the drive motor being disposed on the upper end of the guide rail frame.

[0011] In one alternative: the drive motor is a servo motor.

[0012] In one alternative: the flipping mechanism includes a gear disposed at the end of a drive shaft, the drive shaft passing through a hole in the I-shaped slider, the I-shaped slider being rotatably connected to the drive shaft via a bearing, a drive rack being disposed below the drive shaft, the drive rack meshing with the gear, and the drive rack being connected and fixed to the tunnel furnace via a side rod.

[0013] In one alternative embodiment: the clamping telescopic rod is a hydraulic telescopic rod, the fluid supply chamber of the hydraulic telescopic rod is connected to the inner cavity of the drive shaft, a piston block is slidably disposed inside the drive shaft, the outer side of the piston block is connected to the push rod, a pressing block is disposed at the outer end of the push rod, a pressing ball is fitted in the spherical cavity at the outer end of the pressing block, the pressing block is connected and fixed to the end of the drive shaft by a return spring, the pressing ball is in pressing contact with the pressing plate, the pressing plate is connected and fixed to the tunnel furnace by a pressing bracket, and the pressing plate has clearance notches at both ends.

[0014] In one alternative: replace the pressure bracket with a telescopic motor.

[0015] In one alternative: the tunnel furnace is further provided with an isolation cover to cover the pressure plate and the tilting mechanism.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention addresses existing needs by using a threaded drive to move the foaming material within the tunnel furnace, resulting in smoother movement. This allows the foaming material to continuously tumble during foaming, ensuring more even heating and preventing significant deformation of the board throughout the process, thus guaranteeing foam quality. Furthermore, the foaming material is compressed during foaming, ensuring the flatness of the foam board. Automatic unloading after foaming improves processing efficiency. The absence of airflow for heating reduces heat exchange with the external environment, enhancing energy efficiency and facilitating temperature control during foaming. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure on the other side of the present invention.

[0020] Figure 3 This is a schematic diagram of the lower structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the gear and structure of the present invention.

[0022] Figure 5 A schematic diagram of the structure of the movable gate assembly of the present invention.

[0023] Figure reference numerals: Tunnel furnace 11, heating unit 12, insulation layer 13, opening 14, grid hole 15, first clamping plate 16, second clamping plate 17, clamping telescopic rod 18, transmission shaft 19, I-shaped slider 20, guide rail frame 21, gear 22, return spring 23, pressing block 24, pressing plate 25, pressing bracket 26, transmission rack 27, push motor 28, sliding surface 29, transmission screw 30, clearance notch 31, threaded block 32, pressing ball 33. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, such as Figures 1-4As shown, an energy-saving and highly efficient controllable high-temperature foaming production system includes a tunnel furnace 11 for providing temperature for foaming. The tunnel furnace 11 is equipped with a heating unit 12 for providing heating heat. The outside of the tunnel furnace 11 is equipped with a heat insulation layer 13 to reduce heat loss. The tunnel furnace 11 is equipped with a temperature sensor inside, which can monitor the temperature inside the tunnel furnace 11 in real time. The heating unit 12 uses gas combustion heating, which is more energy-efficient and reduces heating costs compared to traditional electric heating.

[0026] It also includes a foaming positioning block for passing through the internal channel of the tunnel furnace 11. The foaming positioning block fixes the raw material. The foaming positioning block is connected to a displacement pusher for moving it along the internal channel of the tunnel furnace 11. The side of the tunnel furnace 11 is also provided with a flipping mechanism for flipping the foaming positioning block. The setting of the flipping mechanism allows the foaming positioning block to be continuously flipped inside the tunnel furnace 11, thereby making the foaming raw material evenly heated and ensuring the quality of foaming.

[0027] The foam positioning block includes a first clamping plate 16 and a second clamping plate 17 arranged in parallel. The surfaces of the first clamping plate 16 and the second clamping plate 17 are distributed with grid holes 15 for ventilation. The first clamping plate 16 and the second clamping plate 17 are made of metal material, which can better complete heat transfer. A clamping telescopic rod 18 is provided on one side of the second clamping plate 17 and the first clamping plate 16. The two output ends of the clamping telescopic rod 18 are respectively connected to the first clamping plate 16 and the second clamping plate 17. In this way, the clamping telescopic rod 18 can drive the first clamping plate 16 and the second clamping plate 17 to move closer to each other, thereby completing the fixation of the foam material.

[0028] A pressure sensor is also provided between the output end of the clamping telescopic rod 18 and the first clamping plate 16 and the second clamping plate 17, and the pressure sensor detects the degree of expansion of the second clamping plate 17 and the first clamping plate 16.

[0029] The displacement pusher includes a drive shaft 19 connected to the clamping telescopic rod 18. The other end of the drive shaft 19 is connected to the I-shaped slider 20. The I-shaped slider 20 is slidably mounted on the guide rail frame 21. The guide rail frame 21 has a sliding notch to facilitate the sliding of the I-shaped slider 20. The side of the tunnel furnace 11 has an opening 14 to facilitate the passage of the drive shaft 19. The guide rail frame 21 is provided with a threaded pusher for driving the I-shaped slider 20 to move along the sliding notch. By driving the I-shaped slider 20 to slide along the guide rail frame 21 through the threaded pusher, the movement of the foaming material in the tunnel furnace 11 can be controlled smoothly, and the heating time of the material in each process can be better controlled.

[0030] The threaded pusher includes a sliding surface 29 disposed on the upper end of the guide rail frame 21. A threaded block 32 is slidably disposed on the sliding surface 29. One side of the threaded block 32 is connected and fixed to the I-shaped slider 20. A transmission screw 30 is fitted in the transmission screw hole on the threaded block 32. One end of the transmission screw 30 is rotatably connected to a fixed block on the guide rail frame 21. The other end of the transmission screw 30 is connected to a push motor 28 for driving its rotation. The push motor 28 is disposed on the upper end of the guide rail frame 21. Under the action of the push motor 28, the transmission screw 30 and the threaded block 32 rotate relative to each other. Under the action of the thread, the threaded block 32 slides smoothly along the surface of the sliding surface 29, thereby providing power for foaming traction.

[0031] The flipping mechanism includes a gear 22 at the end of the drive shaft 19. The drive shaft 19 passes through a hole in the I-shaped slider 20. The I-shaped slider 20 is rotatably connected to the drive shaft 19 via a bearing. A drive rack 27 is provided below the drive shaft 19. The drive rack 27 meshes with the gear 22. The drive rack 27 is connected and fixed to the tunnel furnace 11 via a side rod. When the guide rail frame 21 slides horizontally, the gear 22 and the drive rack 27 cooperate with each other. Under the action of the drive rack 27, the gear 22 drives the drive shaft 19 to rotate, thereby causing the foaming positioning block to flip continuously, effectively improving the uniformity of heating of the foaming material.

[0032] The clamping telescopic rod 18 is a hydraulic telescopic rod. The hydraulic telescopic rod's supply chamber is connected to the inner cavity of the drive shaft 19. A piston block is slidably disposed inside the drive shaft 19. The outer side of the piston block is connected to the push rod. A pressing block 24 is disposed at the outer end of the push rod. A pressing ball 33 is fitted into the spherical cavity at the outer end of the pressing block 24. The pressing block 24 is connected and fixed to the end of the drive shaft 19 by a return spring 23. The pressing ball 33 is in pressing contact with the pressing plate 25. The pressing plate 25 is connected and fixed to the tunnel furnace 11 by a pressing bracket 26. The pressing plate 25 is connected and fixed at both ends. Two clearance notches 31 are provided at the two positions. When the pressing block 24 is in the clearance notch 31 position, the liquid in the clamping telescopic rod 18 will be drawn away under the action of the return spring 23. At this time, the second clamping plate 17 and the first clamping plate 16 will be separated. When the pressing block 24 is inside the tunnel furnace 11, the pressing ball 33 will be disengaged from the clearance notch 31 position. Under the pressing action of the surface of the pressing plate 25, the liquid inside the drive shaft 19 will be forced into the clamping telescopic rod 18, thereby causing the second clamping plate 17 and the first clamping plate 16 to close, thus completing the tight compression of the foaming material.

[0033] Here, the pressure support 26 can be replaced with a telescopic motor. By adjusting the distance between the pressure plate 25 and the pressure block 24, the foaming material of different thicknesses can be compressed.

[0034] To further reduce heat dissipation, the tunnel furnace 11 is also provided with an isolation cover to cover the pressure plate 25 and the flipping mechanism.

[0035] The tunnel furnace 11 is also equipped with a movable door assembly at the port. The movable door assembly includes a door seat set at the upper end of the tunnel furnace, and a movable door is slidably installed on the door seat. The movable door is connected to a lifting push rod for driving its up and down movement. In this way, the movable door can be moved up and down by the lifting push rod, thereby sealing both ends of the tunnel furnace 11 and further reducing heat loss during operation.

[0036] The above embodiment discloses an energy-saving, efficient, and controllable high-temperature foaming production system. In actual use, initially, the pressing block 24 is positioned at the clearance notch 31. At this time, the second clamping plate 17 and the first clamping plate 16 are horizontal and separated. Then, the foaming material is placed between the second clamping plate 17 and the first clamping plate 16. Under the action of the displacement pusher, the foaming material is fed into the tunnel furnace 11. At this time, the pressing block 24 has also passed the clearance notch 31. The pressing plate 25 then presses against the end of the pressing block 24, thereby causing the second clamping plate 17... The first clamping plate 16 presses the foaming material tightly against the guide rail frame 21. When the guide rail frame 21 slides horizontally, the gear 22 and the transmission rack 27 cooperate with each other. Under the action of the transmission rack 27, the gear 22 will drive the transmission shaft 19 to rotate, thereby driving the foaming positioning block to continuously rotate, which effectively improves the uniformity of the foaming material heating. When the foaming material passes through the tunnel furnace 11, the foaming process is completed. At this time, the pressing block 24 will encounter the end avoidance notch 31. At this time, under the action of the gear 22 and the transmission rack 27, the second clamping plate 17 and the first clamping plate 16 are in a vertical state, thereby completing the rapid unloading and helping to improve the processing efficiency.

[0037] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An energy-saving and efficient controllable high-temperature foaming production system, comprising a tunnel furnace (11) for providing temperature for foaming, a heating unit (12) for providing heating heat being arranged on the tunnel furnace (11), an insulation layer (13) for reducing heat loss being arranged outside the tunnel furnace (11), and a temperature sensor being arranged inside the tunnel furnace (11); characterized in that Further comprising a foaming positioning block for passing through the internal passage of the tunnel furnace (11), raw materials are fixed by the foaming positioning block, the foaming positioning block is connected with a displacement pusher for driving the foaming positioning block to move along the internal passage of the tunnel furnace (11), and a turnover mechanism for turning over the foaming positioning block is further arranged on the side of the tunnel furnace (11); The heating unit (12) is in the form of gas combustion heating; The foaming positioning block comprises first and second clamping plates (16, 17) arranged in parallel, the surfaces of the first and second clamping plates (16, 17) are distributed with grid holes (15) for air permeation, the first and second clamping plates (16, 17) are made of metal material, and heat transfer can be better completed, one side of the second clamping plate (17) is provided with a clamping telescopic rod (18), and the two output ends of the clamping telescopic rod (18) are connected with the first and second clamping plates (16, 17) respectively; The displacement pusher comprises a transmission shaft (19) connected with the clamping telescopic rod (18), the other end of the transmission shaft (19) is connected with a I-shaped sliding block (20), the I-shaped sliding block (20) is slidingly arranged on a guide rail frame (21), the guide rail frame (21) is provided with a sliding gap for facilitating the sliding of the I-shaped sliding block (20), the side of the tunnel furnace (11) is provided with an opening (14) for facilitating the transmission shaft (19) to pass through, and the guide rail frame (21) is provided with a threaded pusher for driving the I-shaped sliding block (20) to move along the sliding gap; The turnover mechanism comprises a gear (22) arranged at the end of the transmission shaft (19), the transmission shaft (19) penetrates through a through hole in the I-shaped sliding block (20), the I-shaped sliding block (20) is rotatably connected with the transmission shaft (19) through a bearing, a transmission rack (27) is arranged below the transmission shaft (19), the transmission rack (27) is engaged with the gear (22), and the transmission rack (27) is connected and fixed with the tunnel furnace (11) through a side rod; The clamping telescopic rod (18) is a hydraulic telescopic rod, a liquid supply cavity of the hydraulic telescopic rod is in communication with the inner cavity of the transmission shaft (19), a piston block is slidingly arranged in the inner cavity of the transmission shaft (19), the outer side of the piston block is connected with a push rod, a pressing block (24) is arranged at the outer end of the push rod, a spherical cavity in the outer end of the pressing block (24) is matched with a pressing ball (33), the pressing block (24) is connected and fixed with the end of the transmission shaft (19) through a return spring (23), the pressing ball (33) is in pressing contact with a pressing plate (25), the pressing plate (25) is connected and fixed with the tunnel furnace (11) through a pressing support (26), and the pressing plate (25) is provided with avoiding gaps (31) at the two positions of the head and tail.

2. The energy efficient and highly controllable high temperature foaming production system as claimed in claim 1, wherein, The output end of the clamping telescopic rod (18) is provided with a pressure sensor between the first clamping plate (16) and the second clamping plate (17).

3. The energy efficient and highly controllable high temperature foaming production system as claimed in claim 2, wherein, The threaded pushing member comprises a sliding surface (29) arranged at the upper end of the guide rail frame (21), a threaded block (32) is slidably arranged on the sliding surface (29), one side of the threaded block (32) is fixedly connected with the I-shaped sliding block (20), a transmission screw hole is formed in the threaded block (32), a transmission screw rod (30) is matchedly arranged in the transmission screw hole, one end of the transmission screw rod (30) is rotatably connected with the fixed block on the guide rail frame (21), the other end of the transmission screw rod (30) is connected with a pushing motor (28) for driving the transmission screw rod (30) to rotate, and the pushing motor (28) is arranged at the upper end of the guide rail frame (21).

4. The energy efficient and highly controllable high temperature foaming production system as claimed in claim 3, wherein, The pushing motor (28) is a servo motor.

5. The energy efficient and highly controllable high temperature foaming production system as claimed in claim 1, wherein, The abutting support (26) is replaced by a telescopic motor.

6. The energy efficient and highly controllable high temperature foaming production system as claimed in claim 1, wherein, The tunnel furnace (11) is further provided with an isolation cover for covering the abutting plate (25) and the overturning mechanism.

Images