BMC material kneader with wall scraping stirring paddle

Abstract

The utility model relates to the field of macromolecular composite material processing equipment discloses a BMC material kneading machine with wall scraping stirring paddle, including a BMC material kneading machine with wall scraping stirring paddle, including the feeder and stirring subassembly, the stirring subassembly includes first electric cabinet and second electric cabinet, first electric cabinet inside fixedly connected with first motor, first motor output fixedly connected with solid shaft, solid shaft outer wall fixedly connected with a plurality of connecting rods, connecting rod both sides fixedly connected with screw ribbon stirring paddle, second electric cabinet inside fixedly connected with second motor. In the utility model, when the BMC material is stirred, the screw ribbon auxiliary paddle is installed above the Z-shaped main paddle, vertically surrounds along the groove wall, guides the material to lift upwards along the groove wall, solves the core contradiction of " uneven dispersion" and " flow stagnation" in the kneading of high fiber material, and helps to provide an efficient, low-loss mixing scheme for BMC production.

Description

Technical Field

[0001] This utility model relates to the field of polymer composite material processing equipment, and in particular to a BMC material kneader with a wall-scraping stirring paddle. Background Technology

[0002] BMC (bulk molding compound) is a high-viscosity composite material made of chopped glass fibers, unsaturated polyester resin, fillers and additives. It has excellent electrical properties, mechanical strength and heat resistance, and is widely used in electrical appliances, automobiles, construction and other fields.

[0003] In its production process, the kneader is the core equipment. It needs to achieve uniform mixing of materials through the synergistic action of the stirring paddle and the cylinder wall. Traditional kneaders mostly adopt a combination structure of Z-shaped stirring paddle and fixed scraper, relying on the shearing force generated by the rotation of the paddle to tumble and mix the materials.

[0004] However, this structure has significant drawbacks: on the one hand, the high viscosity of BMC material makes it easy for the material to adhere to the cylinder wall and the surface of the impeller, forming residual dead corners. Especially when processing glass fiber components, the glass fiber entanglement and resin curing will exacerbate the problem of uneven mixing. To address this issue, a BMC material kneader with a wall scraping agitator is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a BMC material kneader with a wall-scraping agitator, which aims to improve the problems of weak axial flow of Z-type impellers, easy fiber agglomeration, and difficulty in cleaning high-viscosity materials in the prior art.

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

[0007] A BMC material kneader with a wall-scraping agitator includes a feeding machine and a mixing assembly. The mixing assembly includes a first electrical cabinet and a second electrical cabinet. A first motor is fixedly connected inside the first electrical cabinet, and a solid shaft is fixedly connected to the output end of the first motor. Multiple connecting rods are fixedly connected to the outer wall of the solid shaft, and ribbon agitators are fixedly connected to both sides of the connecting rods. A second motor is fixedly connected inside the second electrical cabinet, and a rotating shaft is fixedly connected to the output end of the second motor. Two Z-shaped agitators are arranged inside the feeding machine, and the two Z-shaped agitators are placed parallel to each other inside the feeding machine. Two transmission assemblies are arranged on both sides of the outer wall of the feeding machine, and a cleaning assembly is arranged on the inner wall of the feeding machine.

[0008] As a further description of the above technical solution:

[0009] The cleaning component includes two high-pressure water tanks, which are fixedly connected to both sides of the inner wall of the feeding machine. Multiple nozzles are fixedly connected inside the two high-pressure water tanks. Two water pipes are fixedly connected to one side of each of the two high-pressure water tanks, and a water storage tank is fixedly connected to the end of each water pipe away from the two high-pressure water tanks.

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

[0011] The transmission assembly includes a first gear, a second gear, and a rack. The first gear and the second gear are coaxially mounted between two Z-shaped stirring paddles. The rack meshes with the first gear and the second gear. The output end of the second motor is fixedly connected to the rotating shaft on one side of the rack.

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

[0013] The material feeder is provided with four connecting piles on its outer side, and all four connecting piles are fixedly connected to one side of the two transmission components.

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

[0015] The top of the feeding machine is fixedly connected to a cover, the first electrical cabinet is fixedly connected to one side of the feeding machine, and the second electrical cabinet is fixedly connected to one side of the connecting pile;

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

[0017] The water storage tank is fixedly connected to one side of the feeding machine, and two heating tubes are fixedly connected inside the water storage tank;

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

[0019] The bottom of the feeding machine is fixedly connected to a double-cavity cylinder, which is tightly fitted to the inner wall, and the bottom of the double-cavity cylinder has holes.

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

[0021] A drain pipe is fixedly connected below the hole in the dual-cavity cylinder, and a drain box is fixedly connected to the end of the drain pipe away from the dual-cavity cylinder.

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

[0023] 1. In this utility model, when stirring BMC material, the spiral auxiliary paddle is installed above the Z-shaped main paddle and rotates vertically around the tank wall, guiding the material to rise along the tank wall and then fall back from the middle. This solves the core contradiction of "uneven dispersion" and "flow stagnation" in the kneading of high fiber materials, and helps to provide an efficient and low-loss mixing solution for BMC production.

[0024] 2. In this utility model, when cleaning the BMC kneader, the inside of the water storage tank is heated by the heating pipe, and the hot water is transmitted through the water pipe to the nozzle of the high-pressure water tank to clean the inside of the feeder. The wastewater is transmitted through the sewage pipe to the sewage tank, so as to solve the problem of cleaning difficulties after the feeder mixes the BMC material. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a BMC material kneader with a wall-scraping stirring paddle proposed in this utility model.

[0026] Figure 2 A cross-sectional view of the discharge machine of a BMC material kneader with a wall-scraping agitator proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the mixing component of a BMC material kneader with a wall-scraping stirring paddle proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the cleaning component of a BMC material kneader with a wall-scraping agitator proposed in this utility model.

[0029] Legend:

[0030] 1. Feeder; 2. Machine cover; 3. Water tank; 4. Water pipe; 5. Sewage tank; 6. First gear; 7. Second gear; 8. Rack; 9. First motor; 10. Solid shaft; 11. Ribbon agitator; 12. Connecting rod; 13. Second motor; 14. Z-shaped agitator; 15. Double-chamber cylinder; 16. Sewage pipe; 17. High-pressure water tank; 18. Heating element; 19. Nozzle; 20. First electrical cabinet; 21. Second electrical cabinet. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 - Figure 3This utility model provides an embodiment of a BMC material kneading machine with a scraping and stirring paddle, comprising a feeding machine 1 and a stirring assembly. The stirring assembly includes a first electrical cabinet 20 and a second electrical cabinet 21. A first motor 9 is fixedly connected inside the first electrical cabinet 20, and a solid shaft 10 is fixedly connected to the output end of the first motor 9. Multiple connecting rods 12 are fixedly connected to the outer wall of the solid shaft 10, and ribbon stirring paddles 11 are fixedly connected to both sides of the connecting rods 12. A second motor 13 is fixedly connected inside the second electrical cabinet 21, and a rotating shaft is fixedly connected to the output end of the second motor 13. Two Z-shaped stirring paddles 14 are provided inside the feeding machine 1, and the two Z-shaped stirring paddles 14 are placed parallel to each other at the feeding machine. Inside the machine 1, two transmission components are provided on both sides of the outer wall of the feeding machine 1, and a cleaning component is provided on the inner wall of the feeding machine 1. The transmission components include a first gear 6, a second gear 7 and a rack 8. The first gear 6 and the second gear 7 are coaxially installed between two Z-shaped stirring paddles 14. The rack 8 meshes with the first gear 6 and the second gear 7. The output end of the second motor 13 is fixedly connected to the rotating shaft on one side of the rack 8. Four connecting pins are provided on the outside of the feeding machine 1. All four connecting pins are fixedly connected to one side of the two transmission components. The top of the feeding machine 1 is fixedly connected to the cover 2. The first electrical cabinet 20 is fixedly connected to one side of the feeding machine 1, and the second electrical cabinet 21 is fixedly connected to one side of the connecting pins.

[0033] Specifically, a BMC material kneader with a wall-scraping agitator includes a discharge machine 1 and a mixing assembly. The mixing assembly includes a first electrical cabinet 20 and a second electrical cabinet 21. A first motor 9 is fixedly connected inside the first electrical cabinet 20, and a solid shaft 10 is fixedly connected to the output end of the first motor 9. Multiple connecting rods 12 are fixedly connected to the outer wall of the solid shaft 10, and ribbon agitators 11 are fixedly connected to both sides of the connecting rods 12. A second motor 13 is fixedly connected inside the second electrical cabinet 21, and a rotating shaft is fixedly connected to the output end of the second motor 13. Two Z-shaped agitators 14 are installed inside the discharge machine 1, and the two Z-shaped agitators 14 are placed parallel inside the discharge machine 1. Two transmission assemblies are installed on both sides of the outer wall of the discharge machine 1, and a cleaning assembly is installed on the inner wall of the discharge machine 1. The output end of the first motor 9 drives the solid shaft 10, the solid shaft 10 drives the connecting rods 12 to rotate, and the connecting rods 12 drive the ribbon agitators 11 to guide the material upward along the tank wall and then fall back from the middle. To address the bottleneck of weak axial flow in Z-type impellers and reduce fiber agglomeration, the transmission assembly includes a first gear 6, a second gear 7, and a rack 8. The first gear 6 and the second gear 7 are coaxially mounted between the two Z-type impellers 14. The rack 8 meshes with the first gear 6 and the second gear 7. The output end of the second motor 13 is fixedly connected to the rotating shaft on one side of the rack 8, so that the output power of the first motor 9 drives the first gear 6 to rotate through the rotating shaft. The first gear 6 drives the second gear 7 to rotate through the rack 8, so that the two Z-type impellers 14 rotate in parallel. Four connecting piles are provided on the outside of the feeder 1. The four connecting piles are fixedly connected to one side of the two transmission assemblies to fix the transmission assemblies. The top of the feeder 1 is fixedly connected to the cover 2 to seal the feeder 1. The first electrical cabinet 20 is fixedly connected to one side of the feeder 1 to drive the ribbon impeller 11. The second electrical cabinet 21 is fixedly connected to one side of the connecting piles to drive the two Z-type impellers.

[0034] Reference Figure 1 - Figure 4 The cleaning assembly includes two high-pressure water tanks 17, which are fixedly connected to both sides of the inner wall of the feeding machine 1. Multiple nozzles 19 are fixedly connected inside the two high-pressure water tanks 17. Two water pipes 4 are fixedly connected to one side of each of the two high-pressure water tanks 17. A water storage tank 3 is fixedly connected to the end of the two water pipes 4 away from the two high-pressure water tanks 17. The water storage tank 3 is fixedly connected to one side of the feeding machine 1, and two heating pipes 18 are fixedly connected inside the water storage tank 3. A double-cavity cylinder 15 is fixedly connected to the bottom of the feeding machine 1. The double-cavity cylinder 15 is tightly fitted to the inner wall. A hole is opened at the bottom of the double-cavity cylinder 15. A drain pipe 16 is fixedly connected below the hole of the double-cavity cylinder 15. A drain tank 5 is fixedly connected to the end of the drain pipe 16 away from the double-cavity cylinder 15.

[0035] Specifically, the cleaning assembly includes two high-pressure water tanks 17, which are fixedly connected to both sides of the inner wall of the feeder 1. Multiple nozzles 19 are fixedly connected inside each of the two high-pressure water tanks 17. Two water pipes 4 are fixedly connected to one side of each of the two high-pressure water tanks 17. A water storage tank 3 is fixedly connected to the end of each water pipe 4 away from the two high-pressure water tanks 17. The water storage tank 3 is fixedly connected to one side of the feeder 1, and two heating pipes 18 are fixedly connected inside the water storage tank 3 for transferring hot water from the water storage tank 3 to the feeder 1 via the water pipes 4. Inside the high-pressure water tank 17, spraying is then performed using nozzle 19. A double-chamber cylinder 15 is fixedly connected to the bottom of the discharge machine 1. The double-chamber cylinder 15 fits tightly against the inner wall to reduce the space inside the discharge machine and fits tightly against the Z-shaped stirring paddle 14 to reduce the adhesion of materials to the inner wall. A hole is opened at the bottom of the double-chamber cylinder 15. A drain pipe 16 is fixedly connected below the hole of the double-chamber cylinder 15. A drain tank 5 is fixedly connected to the end of the drain pipe 16 away from the double-chamber cylinder 15 to discharge the cleaned wastewater into the drain tank 5.

[0036] Working principle: Open the cover 2 and put the BMC material into the feeder 1. Start the first motor 9 and the second motor 13. The first motor 9 drives the solid shaft 10 to rotate. The solid shaft 10 drives the ribbon agitator 11 fixed on the connecting rod 12 to stir. The second motor 13 drives the rotating shaft to rotate. The rotating shaft drives the first gear 6 to rotate. The first gear 6 drives the second gear 7, which meshes with the rack 8, to rotate. This drives the two Z-shaped agitators 14 to stir. After stirring, the BMC material is taken out from the cover 2 above the feeder 1. The water in the water storage tank 3 is heated by the heating pipe 18 and then transferred to the high-pressure water tank 17 through the water pipe 4. The water is sprayed into the feeder 1 through the nozzle 19 to clean the ribbon agitator 11 and the Z-shaped agitator 14. After cleaning, the wastewater is discharged into the drain pipe 16 through the hole at the bottom of the double-chamber cylinder 15. The wastewater is then transferred to the drain tank 5 through the drain pipe 16 to complete the cleaning.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A BMC material kneader with a wall-scraping agitator, comprising a feeder (1) and a mixing assembly, characterized in that: The stirring assembly includes a first electrical cabinet (20) and a second electrical cabinet (21). A first motor (9) is fixedly connected inside the first electrical cabinet (20). A solid shaft (10) is fixedly connected to the output end of the first motor (9). Multiple connecting rods (12) are fixedly connected to the outer wall of the solid shaft (10). A spiral stirring paddle (11) is fixedly connected to both sides of the connecting rod (12). A second motor (13) is fixedly connected inside the second electrical cabinet (21). A rotating shaft is fixedly connected to the output end of the second motor (13). Two Z-shaped stirring paddles (14) are provided inside the feeding machine (1). The two Z-shaped stirring paddles (14) are placed parallel inside the feeding machine (1). Two transmission components are provided on both sides of the outer wall of the feeding machine (1). A cleaning component is provided on the inner wall of the feeding machine (1).

2. The BMC material kneader with a wall-scraping agitator according to claim 1, characterized in that: The cleaning assembly includes two high-pressure water tanks (17), which are fixedly connected to both sides of the inner wall of the feeder (1). Multiple nozzles (19) are fixedly connected inside the two high-pressure water tanks (17). Two water pipes (4) are fixedly connected to one side of each of the two high-pressure water tanks (17). A water storage tank (3) is fixedly connected to the end of the two water pipes (4) away from the two high-pressure water tanks (17).

3. A BMC material kneader with a wall-scraping agitator according to claim 1, characterized in that: The transmission assembly includes a first gear (6), a second gear (7), and a rack (8). The first gear (6) and the second gear (7) are coaxially mounted between two Z-shaped stirring paddles (14). The rack (8) meshes with the first gear (6) and the second gear (7). The output end of the second motor (13) is fixedly connected to the rotating shaft on one side of the rack (8).

4. A BMC material kneader with a wall-scraping agitator according to claim 1, characterized in that: The feeding machine (1) has four connecting piles on its outer side, and the four connecting piles are fixedly connected to one side of the two transmission components.

5. A BMC material kneader with a wall-scraping agitator according to claim 1, characterized in that: The top of the feeding machine (1) is fixedly connected to the cover (2), the first electrical cabinet (20) is fixedly connected to one side of the feeding machine (1), and the second electrical cabinet (21) is fixedly connected to one side of the connecting pile.

6. A BMC material kneader with a wall-scraping agitator according to claim 2, characterized in that: The water storage tank (3) is fixedly connected to one side of the feeding machine (1), and two heating tubes (18) are fixedly connected inside the water storage tank (3).

7. A BMC material kneader with a wall-scraping agitator according to claim 2, characterized in that: The bottom of the feeding machine (1) is fixedly connected to a double-cavity cylinder (15), which is tightly fitted to the inner wall, and the bottom of the double-cavity cylinder (15) is provided with holes.

8. A BMC material kneader with a wall-scraping agitator according to claim 7, characterized in that: A drain pipe (16) is fixedly connected below the hole of the double-cavity cylinder (15), and a drain box (5) is fixedly connected to the end of the drain pipe (16) away from the double-cavity cylinder (15).

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