Polyurethane fender production oven

Abstract

This application relates to an oven for producing polyurethane fenders, belonging to the field of polyurethane fender production technology. It includes a box body, a pair of hinged doors at the front end of the box body, support seats at the four corners of the bottom of the box body, heating seats on the left and right side walls of the inner cavity of the box body, multiple heating rods within the heating seats, and a booster fan at the top of the box body. This oven for producing polyurethane fenders allows for the lifting of a clamped movable sealing seat, inserting it into the bottom of the box body for sealing, and moving the material storage cylinder into a heat-insulating cover for rapid material loading. It achieves uniform heating of the material in the storage cylinder within a sealed space. During heating, a stirring component agitates the material to ensure effective heating and melting. After positioning, a lifting component clamps and lifts the movable sealing seat, ensuring precise insertion and sealing between the movable sealing seat and the box body.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane fender production technology, specifically to an oven for polyurethane fender production. Background Technology

[0002] Polyurethane fenders are a common material used for the protection of ships and docks. They can be installed on the sides or stern of ships to absorb the impact force between the ship and the dock or other vessels, reducing damage to the hull and dock from collisions. Polyurethane fenders can also be installed on the edges of docks to protect the dock structure from damage caused by ship collisions or impacts, mitigating the impact of impact forces on the dock. Polyurethane fenders can be used to protect berths, providing a safe berthing environment for ships and reducing collision damage between berths and ships. Polyurethane fenders can also be used as floating fenders for the protection and marking of water facilities such as cofferdams and navigation markers, improving the safety of waterways.

[0003] When polyurethane fenders are molded, the cured material is placed in an oven and melted to serve as the raw material for molding. However, the oven has a large space, making it impossible to concentrate the hot airflow to heat the material. At the same time, the enclosed high-temperature space makes it inconvenient to load and unload materials. Therefore, we propose an oven for polyurethane fender production to solve this technical defect. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an oven for the production of polyurethane fenders.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an oven for producing polyurethane fenders, comprising a box body, a pair of hinged doors at the front end of the box body, support seats at the four corners of the bottom of the box body, heating seats on the left and right side walls of the inner cavity of the box body, multiple heating rods in the heating seats, and a booster fan at the top of the box body. The exhaust port of the booster fan is connected to the heating seats. The bottom wall of the box body is provided with a heat insulation cover. An exhaust pipe is connected to the upper end of the heat insulation cover and extends to the outside of the box body. Multiple exhaust heads are connected to the inner wall of the heat insulation cover. A connecting pipe is connected between the heating seats and the heat insulation cover. A movable sealing seat is inserted and sealed at the bottom of the box body. A material storage cylinder located inside the heat insulation cover is placed at the upper end of the movable sealing seat. A stirring assembly for stirring the material in the material storage cylinder is provided on the heat insulation cover.

[0006] The support base is equipped with a lifting assembly for raising and lowering the movable sealing seat.

[0007] Using the above technical solution, the material storage cylinder is moved from the ground to below the box body by the movable sealing seat. The movable sealing seat is then clamped by the lifting component, which lifts the clamped movable sealing seat and inserts it into the bottom of the box body for sealing. The material storage cylinder is then moved into the heat insulation cover for rapid material loading.

[0008] In addition, the airflow is discharged into the heating base by a booster fan, and the heating rod heats the incoming airflow. The heated airflow is discharged into the heat insulation cover through the connecting pipe and discharged through the evenly distributed exhaust heads, so as to achieve uniform heating of the material in the material storage cylinder in a closed space. During heating, the stirring component stirs the material to ensure the heating and melting effect of the material.

[0009] After the material processing is completed, the movable sealing seat is moved to the ground using the lifting assembly, which enables the rapid unloading of the material.

[0010] As a preferred embodiment of the present invention, the stirring assembly includes a stirring motor located at the center of the upper end of the heat insulation cover, and the output end of the stirring motor is provided with a stirring rod located inside the material storage cylinder.

[0011] Using the above technical solution, the stirring motor drives the stirring rod to rotate, thereby stirring the material in the material storage tank.

[0012] As a preferred embodiment of this utility model, the heating bases are connected by a connecting air pipe, and the exhaust port of the booster fan is connected to the connecting air pipe.

[0013] Using the above technical solution, the airflow discharged by the booster fan is discharged into the two heating seats through the connecting air pipe.

[0014] As a preferred technical solution of this utility model, the lifting assembly includes a hydraulic push rod 1 disposed between the two support seats on the left and between the two support seats on the right. The push rod of the hydraulic push rod 1 is provided with a loading seat, and the side of the loading seat is provided with a hydraulic push rod 2. The push rod of the hydraulic push rod 2 is provided with a clamping seat for clamping the movable sealing seat.

[0015] Using the above technical solution, the hydraulic push rod 2 pushes the clamping seat to move, thereby clamping the movable sealing seat. After clamping, the hydraulic push rod 1 drives the movable sealing seat to move up and down.

[0016] As a preferred embodiment of this utility model, the clamping seat is L-shaped.

[0017] Using the above technical solution, the L-shaped design facilitates the clamping seat to support the bottom side of the movable sealing seat for clamping.

[0018] As a preferred embodiment of this utility model, a limiting plate is provided between the two rear support seats, which contacts the rear surface of the movable sealing seat, and side limiting plates are provided on the opposite surfaces of the two front support seats.

[0019] As a preferred embodiment of this utility model, when the movable sealing seat is at the bottom, the left and right surfaces of the movable sealing seat are in contact with the surfaces of the two side limiting plates, respectively.

[0020] By adopting the above technical solution, when the movable sealing seat moves on the ground, it moves between the two side limiting plates and makes the movable sealing seat contact and abut against the limiting plates to position the movable sealing seat. This positioning of the movable sealing seat with the upper box body facilitates the lifting component to clamp and lift the movable sealing seat after positioning, so that the movable sealing seat and the box body can be accurately inserted and sealed.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] 1. The oven for producing polyurethane fenders uses a movable sealing seat to move the material storage cylinder from the ground to the bottom of the oven body. The movable sealing seat is then clamped by a lifting assembly, which lifts the movable sealing seat and inserts it into the bottom of the oven body for sealing. This allows the material storage cylinder to be moved into the heat insulation cover for rapid material loading.

[0023] In addition, the airflow is discharged into the heating base by a booster fan, and the heating rod heats the incoming airflow. The heated airflow is discharged into the heat insulation cover through the connecting pipe and discharged through the evenly distributed exhaust heads, so as to achieve uniform heating of the material in the material storage cylinder in a closed space. During heating, the stirring component stirs the material to ensure the heating and melting effect of the material.

[0024] After the material processing is completed, the movable sealing seat is moved to the ground using the lifting assembly, which enables the rapid unloading of the material.

[0025] 2. In the oven for producing polyurethane fenders, when the movable sealing seat moves on the ground, it moves between the two side limiting plates and positions itself against the limiting plates. This positioning of the movable sealing seat with the upper box body facilitates the lifting and clamping of the movable sealing seat by the lifting assembly after positioning, ensuring precise insertion and sealing between the movable sealing seat and the box body. Attached Figure Description

[0026] Figure 1 This is a perspective view of the present utility model;

[0027] Figure 2This is a cross-sectional perspective view of the present invention;

[0028] Figure 3 This utility model Figure 2 The front view;

[0029] Figure 4 This is a cross-sectional perspective view of the heat insulation cover of this utility model;

[0030] Figure 5 This utility model Figure 4 Top view;

[0031] Figure 6 This is a bottom-view perspective view of the present invention;

[0032] Figure 7 This is a front view of the present utility model;

[0033] Figure 8 This utility model Figure 6 A deflected 3D diagram.

[0034] In the diagram: 1. Box body; 2. Opening and closing door; 3. Support base; 4. Heating base; 5. Heating rod; 6. Booster fan; 7. Connecting pipe; 8. Heat insulation cover; 9. Exhaust head; 10. Movable sealing seat; 11. Material storage cylinder; 12. Stirring motor; 13. Stirring rod; 14. Limiting plate; 15. Side limiting plate; 16. Exhaust pipe; 17. Hydraulic push rod one; 18. Loading seat; 19. Hydraulic push rod two; 20. Clamping seat. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figure 1 The oven for producing polyurethane fenders in this embodiment mainly consists of a box body 1, a door 2, a support base 3, a heating base 4, a heating rod 5, a booster fan 6, a heat insulation cover 8, an exhaust pipe 16, an exhaust head 9, a connecting pipe 7, a movable sealing base 10, a material storage cylinder 11, a stirring assembly, and a lifting assembly.

[0037] The chamber 1 serves as the main structure of the entire oven, providing the installation base for all components. The left and right sides of its front face are hinged with opening and closing doors 2, which facilitates the operation of opening and closing the chamber 1 and performing related operations. The four corners of the bottom of the chamber 1 are fixed with support bases 3 to support the entire chamber 1 and make it stable in the working environment.

[0038] Please see Figure 2-5 Heating system:

[0039] The heating base 4 is fixed to the left and right side walls of the inner cavity of the box 1, providing an installation position for the heating rod 5.

[0040] Multiple heating rods 5 are fixed inside the heating base 4 to heat the airflow entering the heating base 4.

[0041] The booster fan 6 is fixed to the upper surface of the housing 1. Its exhaust port is connected to the heating base 4 through a pipe. The heating base 4 are connected by a connecting air pipe. The exhaust port of the booster fan 6 is connected to the connecting air pipe, so that the airflow discharged by the booster fan 6 is evenly discharged into the two heating bases 4 through the connecting air pipe to ensure uniform heating effect.

[0042] The heat insulation cover 8 is fixed to the bottom wall of the box 1, and its upper surface is connected to an exhaust pipe 16. The exhaust pipe 16 passes through to the top of the box 1 to discharge the gas inside the heat insulation cover 8 and maintain the internal pressure balance. The inner wall of the heat insulation cover 8 is connected to multiple evenly distributed exhaust heads 9. The heating base 4 and the heat insulation cover 8 are connected by a connecting pipe 7. The heated hot air flows into the heat insulation cover 8 through the connecting pipe 7 and then out through the evenly distributed exhaust heads 9 to achieve uniform heating of the material.

[0043] Material storage and mixing system:

[0044] A movable sealing seat 10 is inserted and sealed at the bottom of the box 1. A material storage cylinder 11 located inside the heat insulation cover 8 is placed at the upper end of the movable sealing seat 10 for storing polyurethane fender production materials to be heated and melted.

[0045] Stirring assembly: Located on the heat insulation cover 8, it is used to stir the material in the material storage cylinder 11. Specifically, it includes a stirring motor 12 fixed at the center of the upper surface of the heat insulation cover 8. The output end of the stirring motor 12 is fixed with a stirring rod 13 located in the material storage cylinder 11. When the stirring motor 12 works, it drives the stirring rod 13 to rotate, thereby stirring the material in the material storage cylinder 11, ensuring that the material is heated evenly and improving the heating and melting effect.

[0046] Lifting assembly: Located on the support base 3, used for lifting the movable sealing seat 10. Specifically, it includes a hydraulic push rod 17 fixed between the two left support bases 3 and the two right support bases 3. A loading seat 18 is fixed at the push rod of the hydraulic push rod 17. A hydraulic push rod 29 is fixed on the side of the loading seat 18. A clamping seat 20 for clamping the movable sealing seat 10 is fixed at the push rod of the hydraulic push rod 29. The clamping seat 20 is L-shaped, which facilitates the clamping seat 20 to support the bottom side of the movable sealing seat 10 for stable clamping.

[0047] Please see Figure 6-8 Positioning structure: A limiting plate 14 is fixed between the two rear support seats 3, which contacts the rear surface of the movable sealing seat 10. Side limiting plates 15 are fixed on the opposite surfaces of the two front support seats 3. When the movable sealing seat 10 is at the bottom, the left and right surfaces of the movable sealing seat 10 contact the surfaces of the two side limiting plates 15 respectively. The movable sealing seat 10 moves between the two side limiting plates 15 and contacts the limiting plate 14, thereby positioning the movable sealing seat 10. This allows the movable sealing seat 10 to be accurately positioned with the upper box 1, facilitating the lifting assembly to clamp and lift the movable sealing seat 10 after positioning, so that the movable sealing seat 10 can be accurately inserted and sealed with the box 1.

[0048] Structural components such as the cabinet 1, door 2, support base 3, heating base 4, movable sealing base 10, material storage cylinder 11, loading base 18, and clamping base 20 are made of stainless steel. Stainless steel has good corrosion resistance, strength, and rigidity, which can meet the requirements of the oven in high-temperature environments and ensure the service life and stability of the equipment.

[0049] Heating rod 5: It uses high-quality alloy heating wire as the heating element, which has the advantages of high heating efficiency and long service life. It can quickly convert electrical energy into heat energy and effectively heat the airflow.

[0050] Power components such as the mixing motor 12, hydraulic push rod 17, and hydraulic push rod 2 19: These are mature products on the market. Their outer shells are made of high-strength engineering plastics or metal, and the internal motors or hydraulic systems are manufactured using high-quality materials and advanced processes to ensure the reliability and stability of the power components and meet the needs of long-term continuous operation.

[0051] Heat insulation cover 8: Made of multi-layer composite heat insulation material, the outer layer is a metal plate, which plays a protective and support role; the inner layer is high-efficiency heat insulation cotton, which can effectively prevent heat loss, improve the energy utilization efficiency of the oven, and reduce energy consumption.

[0052] This polyurethane fender production oven is equipped with an intelligent control system, which uses a programmable logic controller (PLC) as its core to achieve automated control of all components of the oven.

[0053] Temperature control: A temperature sensor is installed in the heating base 4 to monitor the heating temperature in real time and feed the temperature signal back to the PLC. The PLC automatically adjusts the power of the heating rod 5 according to the preset temperature parameters, thereby accurately controlling the heating temperature and ensuring that the material is heated and melted at a suitable temperature.

[0054] Stirring control: The stirring motor 12 is connected to the PLC. The PLC can set the speed and stirring time of the stirring motor. During the heating process, the PLC controls the stirring motor 12 to start and stop at set times according to the preset program, so as to achieve uniform stirring of materials and improve the heating and melting effect.

[0055] Lifting control: Hydraulic push rod 17 and hydraulic push rod 29 are connected to the PLC through a hydraulic control system. The operator can input commands to the PLC through the control panel, and the PLC controls the movement of hydraulic push rod 17 and hydraulic push rod 29 according to the commands to realize the lifting and clamping operation of the movable sealing seat 10, making the loading and unloading process more automated and convenient.

[0056] Safety Protection: The system is also equipped with a variety of safety protection devices, such as overload protection, overheat protection, and leakage protection. When the equipment malfunctions, the corresponding protection device will activate immediately and send a signal to the PLC. The PLC will then control the equipment to stop running and display fault information on the control panel, allowing operators to troubleshoot and handle faults in a timely manner and ensuring the safe operation of the equipment.

[0057] Usage steps,

[0058] Material loading operation:

[0059] Place the polyurethane fender production material to be heated and melted into the material storage cylinder 11.

[0060] Push the movable sealing seat 10 so that it moves on the ground between the two side limiting plates 15 and makes the movable sealing seat 10 contact and abut against the limiting plate 14, thus completing the positioning of the movable sealing seat 10.

[0061] Start hydraulic push rod 219, which pushes clamping seat 20 to move, so that clamping seat 20 clamps the bottom side of movable sealing seat 10.

[0062] Start the hydraulic push rod 17. The hydraulic push rod 17 drives the loading seat 18 and the clamping seat 20 to move upward, thereby lifting the movable sealing seat 10 and inserting it into the bottom of the box 1 for sealing. This also moves the material storage cylinder 11 into the heat insulation cover 8, completing the loading operation.

[0063] Heating and stirring operation:

[0064] Close the switch door 2, start the booster fan 6 and heating rod 5. The booster fan 6 discharges airflow into the heating base 4, and the heating rod 5 heats the incoming airflow. The heated airflow is discharged into the heat insulation cover 8 through the connecting pipe 7 and discharged through the evenly distributed exhaust head 9 to heat the material in the material storage cylinder 11.

[0065] At the same time, the stirring motor 12 is started, which drives the stirring rod 13 to rotate, and stirs the material in the material storage cylinder 11 to ensure that the material is heated evenly until the material is completely melted.

[0066] Unloading operation:

[0067] Once the material has melted, stop the operation of the booster fan 6, heating rod 5, and stirring motor 12.

[0068] Start the hydraulic push rod 17, which will cause the loading seat 18 and the clamping seat 20 to move downwards, and move the movable sealing seat 10 to the ground.

[0069] Start the hydraulic push rod 19, so that the hydraulic push rod 19 drives the clamping seat 20 to release the moving sealing seat 10.

[0070] Remove the material storage cylinder 11 from the movable sealing seat 10, pour out the molten material, and complete the unloading operation.

[0071] In summary, this oven for polyurethane fender production, through its reasonable structural design and intelligent control system, achieves rapid feeding, uniform heating and melting, and rapid unloading of polyurethane fender production materials, thereby improving production efficiency and product quality. It also boasts advantages such as safety, reliability, and ease of operation, and has broad market application prospects.

[0072] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional known device such as a computer that performs control functions, and the existing publicly available power connection technologies are not described in detail in the text.

[0073] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oven for producing polyurethane fenders, comprising a box body, a pair of hinged doors at the front end of the box body, support bases at the four corners of the bottom of the box body, heating bases on the left and right side walls of the inner cavity of the box body, a plurality of heating rods in the heating bases, and a booster fan at the top of the box body, wherein the exhaust port of the booster fan is connected to the heating bases, characterized in that, The bottom wall of the box is provided with a heat insulation cover, the upper end of the heat insulation cover is connected to an exhaust pipe, the exhaust pipe passes through to the outside of the box, the inner wall of the heat insulation cover is connected to multiple exhaust heads, the heating base is connected to the heat insulation cover by a connecting pipe, a movable sealing seat is inserted and sealed at the bottom of the box, and a material storage cylinder located inside the heat insulation cover is placed at the upper end of the movable sealing seat. The heat insulation cover is provided with a stirring component for stirring the material in the material storage cylinder. The support base is equipped with a lifting assembly for raising and lowering the movable sealing seat.

2. The oven for producing polyurethane fenders according to claim 1, characterized in that: The stirring assembly includes a stirring motor located at the center of the upper end of the heat insulation cover, and the output end of the stirring motor is provided with a stirring rod located inside the material storage cylinder.

3. The oven for producing polyurethane fenders according to claim 1, characterized in that: The heating bases are connected by a connecting air pipe, and the exhaust port of the booster fan is connected to the connecting air pipe.

4. The oven for producing polyurethane fenders according to claim 1, characterized in that: The lifting assembly includes a hydraulic push rod 1 located between the two support seats on the left and between the two support seats on the right. A loading seat is provided at the push rod of the hydraulic push rod 1, and a hydraulic push rod 2 is provided on the side of the loading seat. A clamping seat for clamping the movable sealing seat is provided at the push rod of the hydraulic push rod 2.

5. The oven for producing polyurethane fenders according to claim 4, characterized in that: The clamping seat is L-shaped.

6. The oven for producing polyurethane fenders according to claim 1, characterized in that: A limiting plate is provided between the two rear support seats, which contacts the rear surface of the movable sealing seat, and side limiting plates are provided on the opposite surfaces of the two front support seats.

7. The oven for producing polyurethane fenders according to claim 6, characterized in that: When the movable sealing seat is at its bottommost position, the left and right surfaces of the movable sealing seat are in contact with the surfaces of the two side limiting plates, respectively.

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