Raw material switching feeding device for EPS-EPP co-line production

Abstract

The utility model relates to feedway technical field discloses a raw material switching feedway of EPS - EPP collinear production, including the forming machine, the forming machine top is provided with screw extruder, the screw extruder top is provided with the charging barrel, the both sides outer wall of charging barrel is fixedly connected with the inlet pipe, the both sides outer wall of charging barrel is fixedly connected with the pumping pump, two the inlet pipe is fixedly connected in two pumping pump output end, the forming machine one side is fixedly connected with the water collecting tank, the water collecting tank top is fixedly connected with EPS material jar, the water collecting tank top is fixedly connected with EPP material jar. In the utility model, through the control of different pumping pump work according to production demand, pumping pump through Y -shaped pipe respectively cooperate feed pipe one or feed pipe two and draw out the raw material in EPS material jar or EPP material jar, send into charging barrel and screw extruder through inlet pipe, realize the effect of fast switching feed of EPS and EPP raw material.

Description

Technical Field

[0001] This utility model relates to the field of feeding device technology, and in particular to a raw material switching feeding device for EPS-EPP co-production. Background Technology

[0002] In the field of foam product manufacturing, EPS (expandable polystyrene) and EPP (expandable polypropylene) are widely used in packaging, construction, automotive, and other industries due to their respective excellent properties. To improve production efficiency and reduce equipment investment costs, the raw material switching and feeding device for EPS-EPP co-production lines can achieve precise feeding and rapid switching of EPS and EPP raw materials, meeting the supply needs of different raw materials in co-production. Its application can reduce downtime during raw material changeovers and improve the continuity and flexibility of the production line.

[0003] In the prior art, the raw material supply device used for foam product production usually adopts a single supply pipeline and power component. Its technical principle is to extract a single raw material from the material tank through the extraction equipment and transport it to the molding equipment through a fixed pipeline.

[0004] However, existing raw material feeding devices are difficult to switch between EPS and EPP raw materials quickly. When changing raw materials in co-line production, it is necessary to stop the machine to adjust the pipeline or equipment, which leads to production interruption and reduced efficiency. They cannot meet the flexible needs of co-line production. Therefore, a raw material switching feeding device for EPS-EPP co-line production is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a raw material switching and feeding device for EPS-EPP co-production, which aims to improve the problem in the prior art that it is difficult to achieve rapid switching and feeding of EPS and EPP raw materials, and that it is necessary to stop the machine to adjust the pipeline or equipment when changing raw materials in co-production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] As a further description of the above technical solution:

[0008] A raw material switching and feeding device for EPS-EPP co-production includes a molding machine, a screw extruder mounted on top of the molding machine, a barrel mounted on top of the screw extruder, feed pipes fixedly connected to the outer walls of both sides of the barrel, and a pump fixedly connected to the outer walls of both sides of the barrel. The two feed pipes are respectively fixedly connected to the output ends of the two pumps. A water collection tank is fixedly connected to one side of the molding machine, an EPS material tank is fixedly connected to the top of the water collection tank, an EPP material tank is fixedly connected to the top of the water collection tank, a feeding assembly is mounted at the input ends of the two pumps, and a mixing assembly is mounted inside both the EPS material tank and the EPP material tank.

[0009] The feeding assembly includes two Y-shaped tubes. The output ends of the two Y-shaped tubes are respectively fixedly connected to the input ends of two pumps. One input end of each of the two Y-shaped tubes is fixedly connected to a feeding pipe one, and the other input end of each of the two Y-shaped tubes is fixedly connected to a feeding pipe two. The multiple feeding pipes one and feeding pipe two are respectively installed inside the EPS material tank and the EPP material tank.

[0010] As a further description of the above technical solution:

[0011] The mixing assembly includes two rotating rods and stirring blades. The two rotating rods are rotatably connected inside the EPS material tank and the EPP material tank, respectively, and one side of each of the two stirring blades is fixedly connected to one side of the two rotating rods.

[0012] As a further description of the above technical solution:

[0013] Both the EPS and EPP material tanks are fixedly connected to the top of a motor, and the output ends of the two motors are respectively connected to the top of the two rotating rods.

[0014] As a further description of the above technical solution:

[0015] A connecting frame is fixedly connected to the outer wall of the rotating rod, and a scraper is fixedly connected to the outer wall of the connecting frame.

[0016] As a further description of the above technical solution:

[0017] Both the EPS and EPP tanks are fixedly connected to the bottom of a drain pipe, which passes through the inside of the water collection tank.

[0018] As a further description of the above technical solution:

[0019] Both the EPS and EPP tanks have annular pipes fixedly connected to their outer walls, and multiple connecting pipes are fixedly connected inside each of the two annular pipes.

[0020] As a further description of the above technical solution:

[0021] Each of the multiple connecting pipes has a nozzle fixedly connected to one end. The multiple connecting pipes and nozzles are respectively installed inside the EPS material tank and the EPP material tank. Water injection pipes are fixedly connected to the outer walls of the two annular pipes.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by controlling the operation of different feeding pumps according to production needs, the feeding pumps, through Y-shaped pipes, respectively cooperate with feeding pipe one or feeding pipe two to draw raw materials from EPS or EPP tanks, and send them into the barrel and screw extruder through the feed pipe, thereby achieving the effect of rapid switching of EPS and EPP raw materials. This solves the problem that it is difficult to achieve rapid switching of EPS and EPP raw materials, and that it is necessary to stop the machine to adjust the pipeline or equipment when changing raw materials in co-line production, thereby improving production efficiency.

[0024] 2. In this utility model, the motor drives the rotating rod to stir the raw materials with the stirring blades and the scraper removes the raw materials adhering to the tank wall. At the same time, the water injection pipe, the ring pipe, the connecting pipe and the nozzle are used to rinse the tank. The wastewater is discharged into the water collection tank through the drain pipe. This achieves the effect of uniform mixing of raw materials and convenient cleaning of the tank, and solves the problems of raw materials easily clumping and the difficulty in cleaning the raw materials remaining on the tank wall. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a raw material switching and feeding device for EPS-EPP co-line production proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the top structure of a molding machine for a raw material switching and feeding device for EPS-EPP co-line production proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the material cylinder structure of a raw material switching and feeding device for EPS-EPP co-line production proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the annular pipe structure of a raw material switching and feeding device for EPS-EPP co-line production proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the scraper structure of a raw material switching and feeding device for EPS-EPP co-production proposed in this utility model.

[0030] Legend:

[0031] 1. Molding machine; 2. Screw extruder; 3. Barrel; 4. Feed pipe; 5. Pump; 6. Y-shaped pipe; 7. EPS material tank; 8. EPP material tank; 9. Feed pipe one; 10. Feed pipe two; 11. Motor; 12. Rotating rod; 13. Agitator blade; 14. Connecting frame; 15. Scraper; 16. Drain pipe; 17. Annular pipe; 18. Connecting pipe; 19. Nozzle; 20. Water injection pipe; 21. Water collection tank. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1-3 This utility model provides an embodiment of a raw material switching and feeding device for EPS-EPP co-production, including a molding machine 1. The molding machine 1 is the core equipment for product molding, which can process raw materials into foam products of the required shape. A screw extruder 2 is provided on the top of the molding machine 1, which can melt, plasticize and transport the raw materials, providing a uniform material flow for molding. This is prior art and will not be described in detail here. A barrel 3 is provided on the top of the screw extruder 2, which can temporarily store the raw materials and ensure that the raw materials enter the screw extruder 2 stably. Feed pipes 4 are fixedly connected to the outer walls on both sides of the barrel 3. Both sides of the material cylinder 3 are fixedly connected to a material pump 5. The material pump 5 is a rotor pump with an adjustable suction range of 50-200 kg / h, providing stable suction force. This is existing technology and will not be described in detail here. Two feed pipes 4 are fixedly connected to the output ends of the two material pumps 5 respectively. A water collection tank 21 is fixedly connected to one side of the molding machine 1. An EPS material tank 7 and an EPP material tank 8 are fixedly connected to the top of the water collection tank 21. Both the EPS material tank 7 and the EPP material tank 8 are made of carbon steel with an anti-corrosion coating on the inner wall, and have a volume of 3-5 m³. 3 They are used to store EPS raw materials and EPP raw materials respectively. Both pumps 5 have feeding components at their input ends. Both EPS tank 7 and EPP tank 8 have mixing components inside.

[0034] The feeding assembly includes two Y-shaped pipes 6. The output ends of the two Y-shaped pipes 6 are fixedly connected to the input ends of two feeding pumps 5, respectively. The output ends of the two Y-shaped pipes 6 are also fixedly connected to the input ends of the two feeding pumps 5 via flanges, realizing the convergence and transportation of raw materials. One input end of each of the two Y-shaped pipes 6 is fixedly connected to a feeding pipe 1 9, and the other input end of each of the two Y-shaped pipes 6 is fixedly connected to a feeding pipe 2 10. Multiple feeding pipes 1 9 and feeding pipe 2 10 are respectively installed inside the EPS material tank 7 and the EPP material tank 8. By controlling the operation of different feeding pumps 5, in conjunction with the corresponding feeding pipes 1 9 or feeding pipe 2 10, the rapid switching of EPS raw materials and EPP raw materials can be realized without stopping the machine to adjust the pipeline, thereby improving production continuity.

[0035] Reference Figure 1 , Figure 4 and Figure 5 The mixing assembly includes two rotating rods 12 and stirring blades 13. The two rotating rods 12 are rotatably connected inside the EPS material tank 7 and the EPP material tank 8, respectively. One side of each of the two stirring blades 13 is fixedly connected to one side of the two rotating rods 12. The stirring blades 13 are spirally distributed, and when rotating, they can fully stir the raw materials in the tank, making the raw materials evenly mixed. The top of both the EPS material tank 7 and the EPP material tank 8 is fixedly connected to a motor 11. The output ends of the two motors 11 are respectively connected to the top of the two rotating rods 12. A connecting frame 14 is fixedly connected to the outer wall of the rotating rod 12, and a scraper 15 is fixedly connected to the outer wall of the connecting frame 14. The scraper 15 is made of wear-resistant rubber, and the edge of the scraper 15 is in close contact with the inner wall of the tank. When rotating, it can scrape off the raw materials adhering to the tank wall, reducing raw material waste. The EPS material tank 7 and Each EPP material tank 8 has a drain pipe 16 fixedly connected to its bottom. The drain pipe 16 passes through the inside of the water collection tank 21, allowing the cleaning wastewater to be discharged into the water collection tank 21 for centralized treatment. Both EPS material tank 7 and EPP material tank 8 have annular pipes 17 fixedly connected to their outer walls. Both annular pipes 17 have multiple connecting pipes 18 fixedly connected inside them. Each of the multiple connecting pipes 18 has a nozzle 19 fixedly connected to one end. The multiple connecting pipes 18 and nozzles 19 pass through the inside of EPS material tank 7 and EPP material tank 8, respectively. The nozzles 19 are high-pressure atomizing nozzles, which can perform all-round rinsing inside the tanks. Both annular pipes 17 have water injection pipes 20 fixedly connected to their outer walls. Water is injected into the annular pipes 17 through the water injection pipes 20 to provide water for cleaning, ensuring that the material tanks are clean and avoiding the mixing of different raw material residues that may affect the quality of the products.

[0036] Working principle: When using the EPS-EPP co-production raw material switching feeding device, if raw material feeding and switching are required, first select EPS or EPP raw materials for feeding according to production needs. When EPS raw materials are required, control one of the pumps 5 to draw EPS raw materials from the EPS tank 7 through the Y-shaped pipe 6 and the feeding pipe 9 connected to the Y-shaped pipe 6. The raw materials are then fed into the barrel 3 through the feed pipe 4 and then into the screw extruder 2 at the top of the molding machine 1 for subsequent processing. If EPP raw material feeding is required, control another pump 5 to draw EPP raw materials from the EPP tank 8 through the Y-shaped pipe 6 and the feeding pipe 10. The raw materials are then fed into the barrel 3 and the screw extruder 2 through the feed pipe 4, thus achieving the effect of switching between different raw materials.

[0037] When raw materials are stored in EPS tank 7 or EPP tank 8, the motor 11 on the top of EPS tank 7 and EPP tank 8 can be started. The output end of motor 11 drives the rotating rod 12 to rotate inside EPS tank 7 and EPP tank 8. The stirring blade 13 fixed on one side of the rotating rod 12 rotates accordingly to stir the raw materials in the tank, making the raw materials evenly mixed. At the same time, the connecting frame 14 fixed on the outer wall of the rotating rod 12 drives the scraper 15 to rotate. The scraper 15 can scrape off the raw materials on the tank wall to prevent the raw materials from adhering. When it is necessary to clean EPS tank 7 or EPP tank 8, an external water source is connected through the water injection pipe 20, and then cleaning water is injected into the annular pipe 17. The cleaning water is sprayed out from the nozzle 19 fixed at one end of the connecting pipe 18 fixed inside the annular pipe 17 to rinse the inside of the tank. The wastewater after rinsing is discharged into the water collection tank 21 through the drain pipe 16 fixed at the bottom of EPS tank 7 and EPP tank 8 for subsequent treatment, achieving the effect of uniform mixing of raw materials and easy cleaning.

Claims

1. A raw material switching and feeding device for EPS-EPP co-production, comprising a molding machine (1), characterized in that: The molding machine (1) is equipped with a screw extruder (2) on top, and a barrel (3) is equipped on top of the screw extruder (2). Feed pipes (4) are fixedly connected to the outer walls on both sides of the barrel (3). Pumps (5) are fixedly connected to the outer walls on both sides of the barrel (3). The two feed pipes (4) are fixedly connected to the output ends of the two pumps (5). A water collection tank (21) is fixedly connected to one side of the molding machine (1). An EPS material tank (7) is fixedly connected to the top of the water collection tank (21). An EPP material tank (8) is fixedly connected to the top of the water collection tank (21). Feeding components are provided at the input ends of the two pumps (5). Mixing components are provided inside the EPS material tank (7) and the EPP material tank (8). The feeding assembly includes two Y-shaped tubes (6), the output ends of the two Y-shaped tubes (6) are fixedly connected to the input ends of two pumps (5), one input end of each of the two Y-shaped tubes (6) is fixedly connected to a feeding pipe (9), and the other input end of each of the two Y-shaped tubes (6) is fixedly connected to a feeding pipe (10). The multiple feeding pipes (9) and feeding pipes (10) are respectively installed inside the EPS tank (7) and the EPP tank (8).

2. The raw material switching and feeding device for EPS-EPP co-line production according to claim 1, characterized in that: The mixing assembly includes two rotating rods (12) and stirring blades (13). The two rotating rods (12) are rotatably connected inside the EPS tank (7) and the EPP tank (8), respectively. One side of each of the two stirring blades (13) is fixedly connected to one side of the two rotating rods (12).

3. The raw material switching and feeding device for EPS-EPP co-production according to claim 2, characterized in that: Both the EPS material tank (7) and the EPP material tank (8) are fixedly connected to the top of a motor (11), and the output ends of the two motors (11) are respectively connected to the top ends of the two rotating rods (12).

4. The raw material switching and feeding device for EPS-EPP co-production according to claim 3, characterized in that: A connecting frame (14) is fixedly connected to the outer wall of the rotating rod (12), and a scraper (15) is fixedly connected to the outer wall of the connecting frame (14).

5. The raw material switching and feeding device for EPS-EPP co-production according to claim 4, characterized in that: Both the EPS tank (7) and the EPP tank (8) are fixedly connected to a drain pipe (16) at the bottom, and the drain pipe (16) passes through the inside of the water collection tank (21).

6. The raw material switching and feeding device for EPS-EPP co-line production according to claim 5, characterized in that: Both the EPS tank (7) and the EPP tank (8) are fixedly connected to annular pipes (17) on their outer walls, and both annular pipes (17) are fixedly connected to multiple connecting pipes (18) inside.

7. A raw material switching and feeding device for EPS-EPP co-line production according to claim 6, characterized in that: One end of each of the multiple connecting pipes (18) is fixedly connected to a nozzle (19). The multiple connecting pipes (18) and nozzles (19) are respectively inserted into the EPS material tank (7) and EPP material tank (8). The outer walls of the two annular pipes (17) are fixedly connected to water injection pipes (20).

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