Sponge foaming forming equipment

Abstract

The utility model relates to the field of sponge foaming forming, in particular to sponge foaming forming equipment which comprises a frame, a mixing tank, a heat preservation layer, a tank cover, a motor, a stirring scraping plate, a support, a raw material generator, a heat preservation conveying pipe, a discharging port and a cleaning structure. The motor is arranged at the top of the inner side of the tank cover; a rotating shaft in the stirring scraping plate is fixedly connected to an output shaft of the motor; the heat preservation conveying pipe is fixedly connected to the top of the raw material generator; the discharging opening is fixedly connected to the bottom of the mixing tank; a plurality of groups of stirring and cleaning dual-purpose stirring scrapers are arranged in the mixing tank, so that raw materials attached to the inner wall of the mixing tank are scraped off in time while the raw materials are uniformly mixed, and the situation that the raw materials are adhered to the inner wall and are difficult to clean due to expansion curing reaction caused by long-time attachment to the inner wall is prevented.

Description

Technical Field

[0001] This utility model relates to the field of sponge foaming molding, and in particular to a sponge foaming molding equipment. Background Technology

[0002] A sponge foaming machine is a specialized device for making sponges. It injects a liquid foaming agent into a mold and applies appropriate pressure and temperature to cause the liquid foaming agent to expand and solidify within the mold, ultimately forming a sponge product with a certain degree of elasticity and softness. Sponge foaming machines are mainly used to produce various sponge products, such as bath sponges, furniture sponges, and car seat sponges. They are highly efficient and produce stable product quality.

[0003] In the production process of sponge products, the raw materials are thoroughly mixed and stirred, then injected into the mold and appropriate pressure and temperature are applied to make the liquid foaming agent expand and solidify in the mold. In the existing sponge foaming molding equipment, the raw materials need to be mixed in a mixing tank first. During the raw material mixing process, a small amount of liquid foaming agent may adhere to the inner wall of the mixing tank and cannot be discharged through the outlet. Instead, it expands and solidifies in the mixing tank, causing blockage of the outlet.

[0004] Therefore, to address the problem mentioned above where the liquid foaming agent in the mixing tank cannot be completely discharged through the outlet during the raw material mixing process, resulting in some liquid foaming agent expanding and solidifying inside the mixing tank and clogging the outlet, a sponge foaming molding device can be designed to clean the liquid foaming agent in the mixing tank after each foaming process, preventing it from clogging the pipes and ensuring that the raw materials completely enter the mold to guarantee foaming quality. Utility Model Content

[0005] To overcome the problem that during the raw material mixing process, the liquid foaming agent in the mixing tank cannot be completely discharged through the outlet, resulting in some of the liquid foaming agent expanding and solidifying inside the mixing tank and blocking the outlet.

[0006] The technical solution of this utility model is as follows: a sponge foaming molding equipment, including a frame, casters, a mixing tank, an insulation layer, a tank lid, a motor, a stirring scraper, a support, a raw material generator, an insulated conveying pipe, a discharge port, and a cleaning structure. The casters are located at the bottom of the four pillars inside the frame. The mixing tank is fixedly connected to the upper inner side of the frame. The insulation layer is located on the outer side of the mixing tank. The tank lid is fixedly connected to the top of the insulation layer. The motor is located on the top inner side of the tank lid. The rotating shaft inside the stirring scraper is fixedly connected to the output shaft of the motor. The support is fixedly connected to the four corners of the top of the frame. The raw material generator is fixedly connected to the top of the support. The insulated conveying pipe is fixedly connected to the top of the raw material generator. The discharge port is fixedly connected to the bottom of the mixing tank. The cleaning structure is located on the left side inside the frame.

[0007] Preferably, the frame is equipped with casters at the bottom for easy transport and movement of the equipment when unloaded. Both the raw material generator and the mixing tank are equipped with insulation layers to prevent the raw materials from deteriorating or prematurely expanding and solidifying due to temperature changes during storage and mixing, ensuring the safety and stability of the raw materials and the foamed product. Multiple sets of mixing and cleaning scrapers are installed inside the mixing tank to uniformly mix the raw materials while promptly scraping off any material adhering to the inner wall of the mixing tank, preventing it from adhering to the inner wall for extended periods and causing expansion and solidification, making it difficult to remove. A small scraper is also installed inside the discharge port, along with a cleaning structure, allowing the use of a specialized foaming agent cleaner to remove residual chemical foaming agent from the discharge port, ensuring the chemical foaming agent in the mixing tank and discharge port is emptied for subsequent use.

[0008] Preferably, both the mixing tank and the raw material generator are equipped with an insulation layer on the outside. The raw material generator is equipped with a lift pipe and a water pump inside. The raw material generator is fixedly connected to the top of the support, raising the insulation conveying pipe to the same height as the tank cover, so that the raw materials can be fully and evenly mixed when entering the mixing tank, ensuring product quality.

[0009] As a preferred option, the can lid is a double-layer design, with the inner layer adapted to the mixing tank and the outer layer adapted to the insulation layer. A fixing sleeve is provided on the top of the inner side of the can lid, and the motor is located inside the fixing sleeve. An opening adapted to the insulation conveying pipe is provided on the can lid. The motor is placed upside down on the top of the can lid without obstructing the discharge of the mixed chemical foaming agent from the bottom outlet. The structure is simple and reliable.

[0010] Preferably, the inner walls of the mixing tank and the discharge port are made of smooth stainless steel. The contact parts of the T-shaped scraper, triangular scraper and small scraper with the inner walls of the mixing tank and the discharge port are made of corrosion-resistant flexible material. The use of flexible material ensures that the scraper makes full contact with the inner wall and does not leave scratches on the inner wall of the mixing tank, thus reducing cleaning efficiency.

[0011] Preferably, the mixing scraper includes a first rotating shaft, a T-shaped scraper, a triangular scraper, and a connector. The first rotating shaft is fixedly connected to the motor output shaft, the T-shaped scraper is fixedly connected to the upper part of the first rotating shaft, the triangular scraper is fixedly connected to the lower part of the first rotating shaft, and the connector is located at the bottom of the first rotating shaft. The inner sides of the T-shaped scraper and the triangular scraper are made of stainless steel, so that the scraper has sufficient support when cleaning the mixing tank.

[0012] Preferably, the discharge port includes a guide cone, a second rotating shaft, a small scraper, a circular opening, and a threaded sleeve. The guide cone is fixedly connected to the bottom of the mixing tank, the second rotating shaft is fixedly connected to the bottom of the connector, the small scraper is set on the second rotating shaft, the circular opening is set on the left side of the guide cone, and the threaded sleeve is fixedly connected to the bottom of the guide cone. The second rotating shaft inside the guide cone is fixedly connected to the bottom of the first rotating shaft through the connector. The first and second rotating shafts use the same motor as the rotation power source, which reduces the complexity of the mechanical structure and makes it more reliable. The threaded sleeve makes it easy to connect the discharge port to the subsequent pipeline.

[0013] Preferably, the cleaning structure includes a cleaning agent tank, a high-pressure pipe, and a nozzle. The cleaning agent tank is fixedly connected to the bottom left side of the frame. One end of the high-pressure pipe is fixedly connected to the bottom of the cleaning agent tank, and the other end of the high-pressure pipe is fixedly connected to the circular opening. The nozzle is fixedly connected to the inside of the high-pressure pipe. The high-pressure cleaning agent is sprayed into the outlet through the nozzle to clean the remaining chemical foaming agent that cannot be scraped off by the scraper, ensuring that the inside is completely cleaned.

[0014] The beneficial effects of this utility model are:

[0015] The frame is equipped with casters at the bottom for easy transportation and movement of the equipment when unloaded. The raw material generator and mixing tank are both equipped with insulation layers to prevent the raw materials from deteriorating or prematurely expanding and solidifying due to temperature changes during storage and mixing, thus ensuring the safety and stability of the raw materials and the foamed products.

[0016] Multiple sets of mixing and cleaning scrapers are installed in the mixing tank. While the raw materials are mixed evenly, the raw materials adhering to the inner wall of the mixing tank are scraped off in time to prevent them from adhering to the inner wall for a long time, causing them to expand and solidify, resulting in them sticking to the inner wall and becoming difficult to remove.

[0017] The discharge port is also equipped with a small scraper and a cleaning structure. A special foaming agent can be used to clean the residual chemical foaming agent in the discharge port, ensuring that the chemical foaming agent in the mixing tank and discharge port is emptied, which is convenient for subsequent use. Attached Figure Description

[0018] Figure 1 The diagram shown is a three-dimensional structural schematic of the sponge foaming molding equipment of this utility model.

[0019] Figure 2 The diagram shown is a three-dimensional cross-sectional view of the sponge foaming molding equipment of this utility model.

[0020] Figure 3 The diagram shown is a three-dimensional structural schematic of the mixing tank of the sponge foaming molding equipment of this utility model;

[0021] Figure 4The diagram shown is a three-dimensional structural schematic of the stirring scraper of the sponge foaming molding equipment of this utility model.

[0022] Figure 5 The diagram shown is a three-dimensional structural schematic of the discharge port of the sponge foaming molding equipment of this utility model.

[0023] Figure 6 The diagram shown is a three-dimensional structural schematic of the cleaning structure of the sponge foaming molding equipment of this utility model.

[0024] Explanation of reference numerals in the attached diagram: 1. Frame; 2. Casters; 3. Mixing tank; 4. Insulation layer; 5. Tank lid; 6. Motor; 8. Support frame; 9. Raw material generator; 10. Insulated conveying pipe; 13. No. 1 rotating shaft; 14. T-shaped scraper; 15. Triangular scraper; 16. Connector; 17. Guide cone; 18. No. 2 rotating shaft; 19. Small scraper; 20. Circular opening; 21. Threaded sleeve; 22. Cleaning agent tank; 23. High-pressure pipe; 24. Nozzle; Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Please see Figures 1-6In this embodiment, the present invention provides a sponge foaming molding device, including a frame 1, casters 2, a mixing tank 3, an insulation layer 4, a tank lid 5, a motor 6, a stirring scraper, a support 8, a raw material generator 9, an insulated conveying pipe 10, a discharge port, and a cleaning structure. The casters 2 are located at the bottom of the four pillars inside the frame 1. The mixing tank 3 is fixedly connected to the upper inner side of the frame 1. The insulation layer 4 is located on the outer side of the mixing tank 3. The tank lid 5 is fixedly connected to the top of the insulation layer 4. The motor 6 is located at the top inner side of the tank lid 5. The rotating shaft inside the stirring scraper is fixedly connected to the output shaft of the motor 6. The support 8 is fixedly connected to the four top corners of the frame 1. The raw material generator 9 is fixedly connected to the top of the support 8. The insulated conveying pipe 10 is fixedly connected to the top of the raw material generator 9. The discharge port is fixedly connected to the bottom of the mixing tank 3. The cleaning structure is located on the left side inside the frame 1. The bottom is equipped with casters 2 for easy transportation and movement of the equipment when unloaded. Both the raw material generator 9 and the mixing tank 3 are equipped with insulation layers 4 to prevent the raw materials from deteriorating or prematurely expanding and solidifying due to temperature changes during storage and mixing, ensuring the safety and stability of the raw materials and the foamed products. Multiple sets of mixing and cleaning scrapers are installed inside the mixing tank 3. While uniformly mixing the raw materials, the scrapers scrape off the raw materials adhering to the inner wall of the mixing tank 3 in time, preventing them from adhering to the inner wall for a long time and causing expansion and solidification, which would make them stick to the inner wall and difficult to remove. The discharge port is also equipped with small scrapers 19, supplemented by a cleaning structure. Special foaming agent cleaners can be used to clean the residual chemical foaming agent at the discharge port, ensuring that the chemical foaming agent in the mixing tank 3 and the discharge port is emptied, which is convenient for subsequent use.

[0027] Please see Figures 2-3 In this embodiment, both the mixing tank 3 and the raw material generator 9 are provided with an insulation layer 4 on their outer sides. The raw material generator 9 is equipped with a lifting pipe and a water pump. The raw material generator 9 is fixedly connected to the top of the support 8, raising the insulation conveying pipe 10 to the same height as the tank cover 5, so that the raw materials can be fully and evenly mixed when entering the mixing tank 3, ensuring product quality. The tank cover 5 is a double-layer design, with the inner layer adapted to the mixing tank 3 and the outer layer adapted to the insulation layer 4. A fixing sleeve is provided on the top of the inner side of the tank cover 5, and the motor 6 is installed on the fixing sleeve. Inside the cylinder, the can lid 5 has an opening that matches the heat-insulated conveying pipe 10. The motor 6 is placed upside down on top of the can lid 5 without obstructing the discharge of the mixed chemical foaming agent from the bottom outlet. The structure is simple and reliable. The inner walls of the mixing tank 3 and the outlet are both made of smooth stainless steel. The contact parts of the T-shaped scraper 14, the triangular scraper 15 and the small scraper 19 with the inner walls of the mixing tank 3 and the outlet are made of corrosion-resistant flexible material. The use of flexible material ensures that the scraper makes full contact with the inner wall and does not leave scratches on the inner wall of the mixing tank 3, which would reduce the cleaning efficiency.

[0028] Please see Figures 4-6In this embodiment, the stirring scraper includes a first rotating shaft 13, a T-shaped scraper 14, a triangular scraper 15, and a connector 16. The first rotating shaft 13 is fixedly connected to the output shaft of the motor 6. The T-shaped scraper 14 is fixedly connected to the upper part of the first rotating shaft 13, and the triangular scraper 15 is fixedly connected to the lower part of the first rotating shaft 13. The connector 16 is located at the bottom of the first rotating shaft 13. The inner sides of the T-shaped scraper 14 and the triangular scraper 15 are made of stainless steel to provide sufficient support for the scraper when cleaning the mixing tank 3. The discharge port includes a guide cone 17, a second rotating shaft 18, a small scraper 19, a circular opening 20, and a threaded sleeve 21. The guide cone 17 is fixedly connected to the bottom of the mixing tank 3. The second rotating shaft 18 is fixedly connected to the bottom of the connector 16. The small scraper 19 is located on the second rotating shaft 18. The circular opening 20 is located on the left side of the guide cone 17. The threaded sleeve 21... The cylinder 21 is fixedly connected to the bottom of the guide cone 17. The second rotating shaft 18 inside the guide cone 17 is fixedly connected to the bottom of the first rotating shaft 13 through the connector 16. The first rotating shaft 13 and the second rotating shaft 18 use the same motor 6 as the rotation power source, which reduces the complexity of the mechanical structure and makes it more reliable. The threaded sleeve 21 makes it easy to connect the outlet to the subsequent pipeline. The cleaning structure includes a cleaning agent tank 22, a high-pressure pipe 23 and a nozzle 24. The cleaning agent tank 22 is fixedly connected to the bottom left side of the frame 1. One end of the high-pressure pipe 23 is fixedly connected to the bottom of the cleaning agent tank 22, and the other end of the high-pressure pipe 23 is fixedly connected to the circular opening 20. The nozzle 24 is fixedly connected to the inside of the high-pressure pipe 23. The high-pressure cleaning agent is sprayed into the outlet through the nozzle 24 to clean the last remaining chemical foaming agent that cannot be scraped clean by the scraper, ensuring that the inside is completely cleaned.

[0029] During operation, the equipment is moved to the production line using the casters 2. The raw materials required for production are filled into the raw material generator 9, and the cleaning agent is added into the cleaning agent tank 22. After completion, the bottom casters 2 are locked, and a pipe with a valve is connected to the bottom of the bottom threaded sleeve 21. Then, the raw material generator 9 is started, lifting the raw materials in it upwards and conveying them through the insulated conveying pipe 10 into the mixing tank 3. Simultaneously, the motor 6 at the bottom of the tank cover 5 is started, driving the first rotating shaft 13 and the second rotating shaft 18 to rotate. The first rotating shaft 13 drives the T-shaped scraper 14 and the triangular scraper 15 to rotate inside the mixing tank 3, mixing the raw materials within. During operation, the chemical foaming agent adhering to the inner wall of the mixing tank 3 is continuously scraped off. The tank is equipped with three layers of T-shaped scrapers 14, with the bottom of the upper scraper and the top of the lower scraper on the same horizontal line, which can clean the inside of the mixing tank 3 without dead angles. The mixed chemical foaming agent is transported to the external pipeline through the bottom guide cone 17. The second rotating shaft 18 drives the small scraper 19 to clean the inside of the guide cone 17. After the chemical foaming agent inside the equipment is emptied, the cleaning agent in the cleaning agent tank 22 is pressurized through the high pressure pipe 23. The high pressure cleaning agent is sprayed into the discharge port through the nozzle 24 to wash away the remaining chemical foaming agent that cannot be scraped off by the scraper.

[0030] Through the above steps, the bottom of the frame 1 is equipped with casters 2, which facilitates the transportation and movement of the equipment when it is unloaded. The raw material generator 9 and the mixing tank 3 are both equipped with heat insulation layers 4 to prevent the raw materials from deteriorating or prematurely expanding and solidifying due to temperature changes during storage and mixing, thus ensuring the safety and stability of the raw materials and the foamed products. Multiple sets of stirring scrapers that can be used for both stirring and cleaning are installed in the mixing tank 3. While uniformly mixing the raw materials, the scrapers can scrape off the raw materials adhering to the inner wall of the mixing tank 3 in time, preventing them from adhering to the inner wall for a long time and causing expansion and solidification, which would make them stick to the inner wall and difficult to remove. The discharge port is also equipped with small scrapers 19, which, together with the cleaning structure, can use a special foaming agent cleaner to clean the residual chemical foaming agent at the discharge port, ensuring that the chemical foaming agent in the mixing tank 3 and the discharge port is emptied, which is convenient for subsequent use.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A sponge foaming molding equipment, comprising a frame (1), casters (2), a mixing tank (3), an insulation layer (4), a tank lid (5), a motor (6), a support (8), a raw material generator (9), and an insulated conveying pipe (10); characterized in that: It also includes a stirring scraper, a discharge port and a cleaning structure. The universal wheel (2) is set at the bottom of the four pillars inside the frame (1). The mixing tank (3) is fixedly connected to the upper inner side of the frame (1). The insulation layer (4) is set on the outside of the mixing tank (3). The tank cover (5) is fixedly connected to the top of the insulation layer (4). The motor (6) is set on the top inner side of the tank cover (5). The rotating shaft inside the stirring scraper is fixedly connected to the output shaft of the motor (6). The bracket (8) is fixedly connected to the four corners of the top of the frame (1). The raw material generator (9) is fixedly connected to the top of the bracket (8). The heat-insulated conveying pipe (10) is fixedly connected to the top of the raw material generator (9). The discharge port is fixedly connected to the bottom of the mixing tank (3). The cleaning structure is set on the left side inside the frame (1). The stirring scraper includes a first rotating shaft (13), a T-shaped scraper (14), a triangular scraper (15), and a connector (16). The first rotating shaft (13) is fixedly connected to the output shaft of the motor (6), the T-shaped scraper (14) is fixedly connected to the upper part of the first rotating shaft (13), the triangular scraper (15) is fixedly connected to the lower part of the first rotating shaft (13), and the connector (16) is located at the bottom of the first rotating shaft (13).

2. The sponge foaming molding equipment according to claim 1, characterized in that: The mixing tank (3) and the raw material generator (9) are both equipped with an insulation layer (4). The raw material generator (9) is equipped with a riser pipe and a water pump. The raw material generator (9) is fixedly connected to the top of the support (8).

3. The sponge foaming molding equipment according to claim 2, characterized in that: The can lid (5) is a double-layer design. The inner layer is compatible with the mixing tank (3), and the outer layer is compatible with the insulation layer (4). A fixing sleeve is provided on the top of the inner side of the can lid (5), and the motor (6) is located inside the fixing sleeve. An opening is provided on the can lid (5) to be compatible with the insulation conveying pipe (10).

4. The sponge foaming molding equipment according to claim 3, characterized in that: The mixing tank (3) and the inner wall of the discharge port are both made of smooth stainless steel. The T-shaped scraper (14), the triangular scraper (15) and the small scraper (19) are made of corrosion-resistant flexible material in contact with the mixing tank (3) and the inner wall of the discharge port.

5. The sponge foaming molding equipment according to claim 4, characterized in that: The discharge port includes a guide cone (17), a second rotating shaft (18), a small scraper (19), a circular opening (20), and a threaded sleeve (21). The guide cone (17) is fixedly connected to the bottom of the mixing tank (3), the second rotating shaft (18) is fixedly connected to the bottom of the connector (16), the small scraper (19) is set on the second rotating shaft (18), the circular opening (20) is set on the left side of the guide cone (17), and the threaded sleeve (21) is fixedly connected to the bottom of the guide cone (17). The second rotating shaft (18) inside the guide cone (17) is fixedly connected to the bottom of the first rotating shaft (13) through the connector (16).

6. The sponge foaming molding equipment according to claim 5, characterized in that: The cleaning structure includes a cleaning agent tank (22), a high-pressure pipe (23), and a nozzle (24). The cleaning agent tank (22) is fixedly connected to the bottom left side of the frame (1). One end of the high-pressure pipe (23) is fixedly connected to the bottom of the cleaning agent tank (22), and the other end of the high-pressure pipe (23) is fixedly connected to the circular opening (20). The nozzle (24) is fixedly connected to the inside of the high-pressure pipe (23).

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