Mixing and feeding device

Abstract

The utility model relates to a material mixing and feeding device which comprises a feeding mechanism for moving raw materials and a material mixing mechanism for mixing the raw materials, the material mixing mechanism comprises a spiral material mixing conveyor and a plurality of material storage bins which are arranged above the spiral material mixing conveyor in the material conveying direction of the spiral material mixing conveyor, each material storage bin is of a funnel-shaped structure with an opening in the upper portion, and a material outlet is formed in the bottom of each material storage bin; and a switch component capable of opening or closing each discharge hole is arranged at each discharge hole. According to the utility model, different batches of raw materials can be quickly mixed, so that the quality difference of polyethylene pipes caused by the quality difference of different batches of polyethylene particles is avoided, and the stability of the production quality of the polyethylene pipes is improved.

Description

A mixing and feeding device Technical Field

[0001] This utility model relates to the field of material mixing technology, and in particular to a material mixing and feeding device. Background Technology

[0002] Polyethylene (PE) granules are the main raw material for the production of polyethylene pipes, and the quality stability of PE granules directly affects the quality stability of polyethylene pipe products. During large-scale production, due to differences in raw material suppliers, production process parameters, or storage conditions, different batches of PE granules may exhibit variations in key physical properties such as melt flow index and density. These batch-to-batch quality differences can lead to unstable quality in polyethylene pipes, impacting the product's market competitiveness.

[0003] Therefore, there is an urgent need for a polyethylene granule mixing and feeding device that mixes different batches of polyethylene granules in ton bags before feeding them, so as to avoid the quality difference of polyethylene pipes caused by the quality difference of polyethylene granules in different batches and improve the quality stability of polyethylene pipes. Summary of the Invention

[0004] This utility model addresses the shortcomings of existing technologies by providing a mixing and feeding device.

[0005] This utility model is achieved through the following technical solution: a mixing and feeding device is provided, including a feeding mechanism for moving raw materials and a mixing mechanism for mixing the raw materials; the mixing mechanism includes a spiral mixing conveyor and a plurality of storage bins arranged above the spiral mixing conveyor and along the conveying direction of the spiral mixing conveyor, each storage bin being a funnel-shaped structure with an opening at the top and a discharge port at its bottom, and a switch component that can open or close the discharge port is installed at each discharge port.

[0006] Preferably, the feeding mechanism includes a hoisting frame, a crossbeam mounted on the hoisting frame, and a movable hoisting component mounted on the crossbeam.

[0007] Preferably, the mobile hoisting component is an electric overhead hoist.

[0008] Preferably, a support platform for temporarily placing raw material packages is provided above each storage bin. Each support platform is lower in the middle and higher around the edges, and a material leakage hole is provided in the middle of the support platform.

[0009] Preferably, the first feeding station is located in front of the mixing mechanism, and the second feeding station is located behind the mixing mechanism. The overhead electric hoist of the feeding mechanism moves different batches of raw material packages from the first feeding station to the support platform. The operator opens the discharge port at the bottom of each raw material package, and the different batches of raw materials enter different storage bins for temporary storage.

[0010] Preferably, there are four storage bins, all of which are installed on a support frame, and the support platform is fixed to the top of the support frame.

[0011] Preferably, each switching component includes an arc-shaped sealing plate that can rotate to open or close the discharge port of the storage bin, and a cylinder that drives the arc-shaped sealing plate to rotate.

[0012] Preferably, fan-shaped connecting plates are fixed to the front and rear sides of the arc-shaped sealing plate, and the fan-shaped connecting plates are rotatably connected to the side wall of the storage bin. One end of the cylinder is hinged to the support frame, and the other end is hinged to the arc-shaped sealing plate. The cylinder extends or retracts to drive the arc-shaped sealing plate to rotate, thereby blocking or opening the discharge port of the storage bin.

[0013] Preferably, the screw conveyor is an open-type screw conveyor, with baffles fixed on both sides of its opening to prevent raw materials from spilling.

[0014] Preferably, the bottom of the material storage hopper outlet has an arc-shaped structure to avoid mutual interference when the arc-shaped sealing plates rotate.

[0015] Preferably, the opening of the material storage bin's outlet is controlled by rotating the arc-shaped sealing plate using a cylinder. The opening of the material storage bin's outlet decreases from the farthest point from the screw conveyor's outlet. The material storage bin furthest from the screw conveyor's outlet has the longest material travel distance, so its outlet opening is maximized. The openings of the outlets of subsequent storage bins decrease sequentially, further improving the uniformity of material mixing.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model can quickly mix different batches of raw materials with high mixing uniformity, avoiding quality differences in polyethylene pipes caused by differences in the quality of polyethylene particles from different batches, and improving the stability of polyethylene pipe production quality.

[0018] 2. This utility model can achieve both mixing and feeding, integrating mixing and feeding into one, simplifying the production process and improving production efficiency. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the structure of this utility model;

[0020] Figure 2 is a structural schematic diagram of the mixing mechanism of this utility model from one perspective;

[0021] Figure 3 is a structural schematic diagram of the mixing mechanism of this utility model from another perspective;

[0022] Figure 4 is a structural schematic diagram of the storage bin and switch component of this utility model;

[0023] As shown in the figure:

[0024] 1. Feeding mechanism; 11. Lifting frame; 12. Crossbeam; 13. Electric overhead hoist;

[0025] 2. Mixing mechanism; 21. Spiral mixing conveyor; 22. Storage bin; 23. Support frame; 24. Support platform; 25. Baffle plate; 26. Arc-shaped sealing plate; 27. Cylinder; 28. Fan-shaped connecting plate.

[0026] 3. First loading station; 4. Second loading station; 5. Second-floor platform. Detailed Implementation

[0027] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.

[0028] As shown in Figures 1-4, this utility model includes a feeding mechanism 1 for moving raw materials and a mixing mechanism 2 for mixing raw materials.

[0029] The feeding mechanism 1 includes a hoisting frame 11, a crossbeam 12 mounted on the hoisting frame 11, and a movable hoisting component mounted on the crossbeam 12. In this embodiment, the movable hoisting component is a crane electric hoist 13.

[0030] The mixing mechanism 2 includes a spiral mixing conveyor 21 and a plurality of storage bins 22 arranged above the spiral mixing conveyor 21 and along the conveying direction of the spiral mixing conveyor 21. Each storage bin 22 is a funnel-shaped structure with an opening at the top and a discharge port at the bottom. A switch component that can open or close the discharge port is installed at each discharge port.

[0031] The first feeding station 3 is located in front of the mixing mechanism 2, and the second feeding station 4 is located behind the mixing mechanism 2. In this embodiment, the front and rear are defined by the feeding direction of the spiral mixing conveyor 21, which feeds materials from front to back.

[0032] In this embodiment, there are four storage bins 22, all of which are mounted on a support frame 23. Above each storage bin 22 is a support platform 24 for temporarily storing raw material packages. The support platform 24 is fixed to the top of the support frame 23, and each support platform 24 is lower in the center and higher around the edges. A material leakage hole is provided in the center of the support platform 24. The overhead electric hoist 13 of the feeding mechanism 1 moves different batches of raw material packages from the first feeding station 3 to the support platform 24. The operator opens the discharge port at the bottom of each raw material package, and different batches of raw materials enter different storage bins 22 for temporary storage.

[0033] In this embodiment, the spiral mixing conveyor 21 is an open-type spiral mixing conveyor, with baffles 25 fixed on both sides of its opening to prevent raw materials from spilling.

[0034] Each switching component includes an arc-shaped sealing plate 26 that can rotate to open or close the discharge port of the storage bin 22, and a cylinder 27 that drives the arc-shaped sealing plate 26 to rotate. Sector-shaped connecting plates 28 are fixed to the front and rear sides of the arc-shaped sealing plate 26, and the sector-shaped connecting plates 28 are rotatably connected to the side wall of the storage bin 22. One end of the cylinder 27 is hinged to the support frame 23, and the other end is hinged to the arc-shaped sealing plate 26. The cylinder 27 extends or retracts to drive the arc-shaped sealing plate 26 to rotate, thereby blocking or opening the discharge port of the storage bin 22. The bottom of the discharge port of the storage bin 22 has an arc-shaped structure to prevent interference between the arc-shaped sealing plates 26 when they rotate.

[0035] The rotation position of the arc-shaped sealing plate 26 is controlled by the cylinder 27 to control the opening of the discharge port of the storage bin 22. The opening of the discharge port of the storage bin 22 decreases from the farthest to the nearth of the discharge end of the spiral mixing conveyor 21.

[0036] The material in the storage bin 22, which is furthest from the discharge port of the screw mixer conveyor 21, has the longest travel distance. Therefore, the opening of its discharge port is opened to the maximum, and the opening of the discharge ports of the subsequent storage bins 22 decreases in sequence, which can further improve the uniformity of the material mixing.

[0037] Empty ton bags are placed below the discharge port of the screw mixing conveyor 21 to receive the mixed raw materials. The mixed raw material bags are then moved from the second loading station 4 to the second-floor platform 5 by the electric hoist 13 for later use.

[0038] In practice, after the polyethylene ton bags of granules arrive on site, they are transported by forklift to the first loading station 3 for stacking. Different batches of polyethylene ton bags of granules are hoisted onto the support platform 24 above the four storage bins 22 by the loading mechanism 1. The workers open the discharge port at the bottom of the ton bags, and the granules fall into the storage bins 22. After the four storage bins 22 are full, the workers place empty ton bags at the discharge port of the spiral mixing conveyor 21, start the spiral mixing conveyor 21, and control the opening and closing angle of the cylinders 27 of each switch component. The granules fall from the storage bins 22 into the spiral mixing conveyor 21, are mixed and conveyed forward by the spiral mixing conveyor 21, and fall from the discharge port of the spiral mixing conveyor 21 into the empty ton bags. After the ton bags are full, the spiral mixing conveyor 21 is temporarily stopped. The full ton bags are hoisted to the second-floor platform 5 by the overhead electric hoist 13. After all the granules in the storage bins 22 are mixed, the equipment stops, and the entire operation is completed.

[0039] This invention enables rapid mixing of different batches of raw materials with high mixing uniformity, avoiding quality differences in polyethylene pipes caused by variations in the quality of polyethylene particles from different batches, and improving the stability of polyethylene pipe production quality. This invention also integrates mixing and feeding, simplifying the production process and improving production efficiency.

[0040] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A mixing and feeding device, characterized in that: It includes a feeding mechanism for moving raw materials and a mixing mechanism for mixing raw materials; the mixing mechanism includes a screw mixing conveyor and multiple storage bins arranged above the screw mixing conveyor and along the conveying direction of the screw mixing conveyor. Each storage bin is a funnel-shaped structure with an opening at the top and a discharge port at the bottom. A switch component that can open or close the discharge port is installed at each discharge port.

2. The mixing and feeding device according to claim 1, characterized in that: The feeding mechanism includes a hoisting frame, a crossbeam mounted on the hoisting frame, and a movable hoisting component mounted on the crossbeam.

3. The mixing and feeding device according to claim 2, characterized in that: The mobile lifting device is an electric overhead hoist.

4. The mixing and feeding device according to claim 1, characterized in that: Each storage bin is equipped with a support platform for temporarily placing raw material packages. Each support platform is lower in the middle and higher around the edges, and a material leakage hole is provided in the middle of the support platform.

5. The mixing and feeding device according to claim 1, characterized in that: Each switching component includes an arc-shaped sealing plate that can rotate to open or close the discharge port of the storage bin, and a cylinder that drives the arc-shaped sealing plate to rotate.

6. The mixing and feeding device according to claim 5, characterized in that: The front and rear sides of the arc-shaped sealing plate are fixed with fan-shaped connecting plates, which are rotatably connected to the side wall of the storage bin. One end of the cylinder is hinged to the support frame, and the other end is hinged to the arc-shaped sealing plate.

7. The mixing and feeding device according to claim 1, characterized in that: The spiral mixing conveyor is an open-type spiral mixing conveyor, with baffles fixed on both sides of its opening.

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