A material conveying structure and its feeding bin

Abstract

This utility model discloses a material conveying structure and its feeding bin, including a receiving box; a conveying cylinder is fixed to one side of the receiving box; a dropping box is fixed to the end of the conveying cylinder away from the receiving box; a central shaft rotates inside the conveying cylinder, with both ends of the central shaft extending into the receiving box and the dropping box respectively; auger blades are provided on the conveying cylinder. This utility model designs the auger blades as a combination of fixed blades and movable blades, and cooperates with a sliding adjustment mechanism driven by a hydraulic cylinder. When material blockage occurs in the conveying channel, the space of the conveying channel can be increased quickly by moving the movable blades, and the unblocking operation can be completed in time, avoiding equipment downtime due to material blockage. Moreover, the symmetrical arrangement of the two hydraulic cylinders ensures the stability of the movement of the movable blades, ensuring that the unblocking process is efficient and reliable, and greatly improving the continuous operation capability of the overall material conveying system.

Description

Technical Field

[0001] This utility model relates to a material conveying structure and its feeding bin, belonging to the technical field of extruder feeding bins. Background Technology

[0002] Existing material conveying systems and related material handling equipment often face numerous problems affecting their stable operation and material handling quality. On the one hand, in the material conveying stage, traditional auger blades have a simple structure and lack a flexible adjustment mechanism. When blockages occur in the conveying channel, it is difficult to clear them quickly and effectively, often requiring a shutdown. This not only leads to equipment interruption and reduces the continuous operation capacity of the overall material conveying system, but also increases production time and costs. Therefore, a new material conveying structure and its feeding bin are proposed. Utility Model Content

[0003] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide a material conveying structure and its feeding bin, which can quickly increase the material conveying channel space by moving movable blades, complete the unblocking operation in a timely manner, and avoid equipment downtime caused by material blockage.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a material conveying structure, comprising: Receiving box; The conveyor cylinder is fixed to one side of the receiving box; The material discharge box is fixed at the end of the conveyor cylinder away from the receiving box. A central shaft rotates inside the conveying cylinder, with its two ends extending into the receiving box and the discharge box, respectively. Screw blades are installed on the conveyor cylinder and are used to transport the material in the receiving box along the conveyor cylinder to the discharge box.

[0005] Preferably, the auger blade comprises: A fixed blade is fixed on a central shaft; Movable blades, which are slidably connected to the central shaft; An extension space is provided between the fixed blade and the movable blade; When the movable blade moves toward the fixed blade, the telescopic space shrinks, and the material conveying channel inside the conveying cylinder expands.

[0006] Preferably, a plurality of sliding grooves are provided on the side wall of the central shaft, and a sliding rod is slidably connected in each of the plurality of sliding grooves, and the plurality of sliding rods are fixedly connected to the movable blade; The central shaft has a sliding sleeve at its end, multiple sliding rods fixed on the sliding sleeve, a pull ring on the sliding sleeve, and a hydraulic cylinder for pulling the pull ring is fixed on the side wall of the receiving box.

[0007] Preferably, a motor is fixed on the receiving box, a drive gear is fixed on the output shaft of the motor, a driven gear is fixed at the end of the central shaft, and the drive gear and the driven gear are meshed together. When the motor starts, it drives the central shaft to rotate through the transmission between the driving gear and the driven gear.

[0008] Preferably, the conveying cylinder is fitted with an insulation layer.

[0009] Preferably, the interior of the insulation layer is uniformly distributed with heating tubes for heating and drying the material in the conveying cylinder, and a heating module is fixed on the side wall of the insulation layer, the heating module being electrically connected to the heating tubes.

[0010] Preferably, a rotating roller is fixed inside the receiving box and above the central axis, and the rotating roller has multiple rollers distributed circumferentially to stir the material in the receiving box.

[0011] Preferably, the rotating roller is arranged parallel to the axis of the central shaft, and the rotating roller is connected to the central shaft via a belt drive.

[0012] Preferably, the lower end of the discharge box is provided with a discharge port that is connected to the extruder.

[0013] Preferably, a feeding bin includes the material conveying structure described in any of the above technical solutions.

[0014] Compared with existing technologies: 1. This utility model designs the auger blades as a combination of fixed and movable blades, and uses a sliding adjustment mechanism driven by a hydraulic cylinder. When material blockage occurs in the conveying channel, the movable blades can be moved quickly to increase the space of the conveying channel and complete the unblocking operation in a timely manner, avoiding equipment downtime due to material blockage. The symmetrical arrangement of the two hydraulic cylinders ensures the stability of the movement of the movable blades, ensuring that the unblocking process is efficient and reliable, and greatly improving the continuous operation capability of the overall material conveying system.

[0015] 2. This utility model sets up a stirring structure consisting of rotating rollers and stirring rollers in the receiving box, and uses the power transmission of the central shaft to achieve real-time stirring of the material, keeping the material in a loose state and avoiding accumulation and blockage in the receiving stage. At the same time, the insulation layer outside the conveying cylinder and the heating pipe inside work together to accurately heat and dry the material according to the material requirements, ensuring that the material maintains a suitable temperature and humidity during the conveying process and improving the quality of subsequent extrusion processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an overall sectional view of the present invention; Figure 3 This is a cross-sectional view of the conveying cylinder, central shaft, fixed blades, and movable blades of this utility model; Figure 4 This is a schematic diagram of the structure of the central shaft, fixed blade, and movable blade of this utility model. Figure 5 This is an exploded view of the central axis, fixed blade, and movable blade of this utility model. Figure 6 This is an exploded view of the central shaft, fixed blade, movable blade, and slide rod of this utility model.

[0017] In the picture: 1. Receiving box; 2. Conveyor cylinder; 3. Drop box; 4. Central shaft, 401, sliding groove; 5. Screwdriver blades, 501. Fixed blades, 502. Movable blades; 6. Slide rod; 7. Slide sleeve; 8. Pull ring; 9. Hydraulic cylinder; 10. Motor; 11. Driven gear; 12. Driven gear; 13. Heating element; 14. Heating module; 15. Rotating roller; 16. Agitating roller; 17. Insulation layer. Detailed Implementation

[0018] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0019] Example 1 like Figures 1-6 As shown in the figure, this embodiment provides a material conveying structure, including a receiving box 1, a conveying cylinder 2, a discharge box 3, a central shaft 4, and auger blades 5. The receiving box 1 serves as the initial receiving component for materials, with a feed inlet at its top connected to a feeding bin, facilitating the flow of material from the feeding bin into the receiving box 1. The conveying cylinder 2 is bolted to one side of the receiving box 1, and the two are internally interconnected, ensuring that material from the receiving box 1 can smoothly enter the conveying cylinder 2. The discharge box 3 is connected to the end of the conveying cylinder 2 furthest from the receiving box 1, and its lower end has a discharge port connected to an extruder, allowing material to enter the extruder.

[0020] The central shaft 4 is rotatably connected to the center of the conveying cylinder 2, with its two ends extending into the receiving box 1 and the discharge box 3, respectively. At each extended end, bearings are used to rotatably engage with the side walls of the receiving box 1 and the discharge box 3, ensuring the stability of the central shaft 4 during rotation. The auger blades 5 are mounted on the corresponding central shaft 4 of the conveying cylinder 2, enabling the material in the receiving box 1 to be conveyed along the conveying cylinder 2 towards the discharge box 3.

[0021] To drive the rotation of the central shaft 4, a motor 10 is fixed to the outer wall of the receiving box 1 via a motor mount. The motor 10 is a servo motor, which can achieve speed adjustment. The output shaft of the motor 10 is fixed to the drive gear 11 via a coupling. The end of the central shaft 4 located inside the receiving box 1 is fixed to the driven gear 12 via a key connection. When the motor 10 starts, its output shaft drives the drive gear 11 to rotate, thereby driving the driven gear 12 and the central shaft 4 to rotate synchronously, providing power for material conveying.

[0022] Considering that some materials need to be kept at a certain temperature or dried during the conveying process, the conveying cylinder 2 is fitted with an insulation layer 17 to effectively reduce heat loss. Heating tubes 13 are evenly distributed inside the insulation layer 17. These heating tubes 13 are made of stainless steel and are spirally wound around the outer wall of the conveying cylinder 2, allowing for uniform heating and drying of the materials inside. A heating module 14 is fixed to the side wall of the insulation layer 17 with screws. The heating module 14 is electrically connected to the heating tubes 13 via wires. The heating module 14 is equipped with a temperature adjustment knob, allowing for temperature control according to the material characteristics.

[0023] To prevent material from accumulating and clogging in the receiving box 1, a rotating roller 15 is fixed inside the receiving box 1 and above the central shaft 4 via a bearing seat. The rotating roller 15 is parallel to the axis of the central shaft 4, and multiple stirring rollers 16 are distributed circumferentially on the rotating roller 15. Under the stirring action of the stirring rollers 16, the material in the receiving box 1 becomes loose. At the same time, one end of the rotating roller 15 extends out of the receiving box 1 and is fixed with a driven pulley. The end of the central shaft 4 located inside the receiving box 1 is fixed with a driving pulley. The driving pulley and the driven pulley are connected by a belt drive. When the central shaft 4 rotates, it can synchronously drive the rotating roller 15 to rotate, eliminating the need for an additional power source and saving energy.

[0024] Example 2 This embodiment improves upon Embodiment 1 by modifying the auger blade 5 and related drive structure to solve the problem of material blockage in the conveying channel. The auger blade 5 includes a fixed blade 501 and a movable blade 502. The fixed blade 501 is welded to the central shaft 4, and the movable blade 502 is slidably connected to the central shaft 4, located on one side of the fixed blade 501. Both blades have the same spiral direction, and a telescopic space is provided between the fixed blade 501 and the movable blade 502.

[0025] The auger blades 5 inside the conveying cylinder 2 form a spiral conveying channel. When the conveying channel is blocked, the movable blade 502 can move toward the fixed blade 501. At this time, the telescopic space is reduced and the cross-section of the conveying channel inside the conveying cylinder 2 is enlarged, which is conducive to clearing the conveying channel. After clearing, the movable blade 502 is reset, restoring the normal conveying channel size and ensuring material conveying efficiency.

[0026] To enable the sliding of the movable blade 502, multiple sliding grooves 401 are provided on the side wall of the central shaft 4 along the axial direction. The number of sliding grooves 401 is multiple and they are evenly distributed around the circumference of the central shaft 4. A sliding rod 6 is slidably connected in each sliding groove 401. The diameter of the sliding rod 6 matches the width of the sliding groove 401 to ensure smooth sliding. The multiple sliding rods 6 are welded and fixed to the movable blade 502.

[0027] A sliding sleeve 7 is fitted onto the end of the central shaft 4. The sliding sleeve 7 and the central shaft 4 are slidably connected through a clearance fit. The ends of multiple sliding rods 6 away from the movable blade 502 are all welded to the inner side wall of the sliding sleeve 7. A pull ring 8 is fitted onto the outer side wall of the sliding sleeve 7 and is rotatably connected to the sliding sleeve 7. A hydraulic cylinder 9 for pulling the pull ring 8 is fixed to the side wall of the receiving box 1 by a bracket. Its output shaft is set along the axial direction of the central shaft 4, and the end of the output shaft is connected to the pull ring 8 by a pin. There are two hydraulic cylinders 9, symmetrically distributed on both sides of the central shaft 4. The output shafts of the two hydraulic cylinders 9 are respectively connected to both sides of the pull ring 8. When the two hydraulic cylinders 9 extend and retract synchronously, the pull ring 8 carries the sliding sleeve 7 and slides along the axial direction of the central shaft 4. At this time, the sliding sleeve 7 drives the movable blade 502 to move along the axial direction of the central shaft 4 through the sliding rod 6, thereby adjusting the distance between the movable blade 502 and the fixed blade 501. In addition, a hydraulic cylinder control module is installed on the side wall of the receiving box 1, which can control the synchronous movement of the two hydraulic cylinders 9 to ensure the stability of the moving blade 502 when it moves.

[0028] Example 3 This application also provides a feeding bin, including the material conveying structure of any of the above embodiments.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model without departing from the spirit and scope of this utility model. Any modifications or partial substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A material conveying structure, characterized in that, include: Receiving box (1); Conveying cylinder (2), the conveying cylinder (2) is fixed on one side of receiving box (1); The material drop box (3) is fixed at the end of the conveyor cylinder (2) away from the receiving box (1); The central shaft (4) rotates inside the conveying cylinder (2), and the two ends of the central shaft (4) extend into the receiving box (1) and the dropping box (3) respectively. Screw blades (5) are set on the conveying cylinder (2) and are used to convey the material in the receiving box (1) along the conveying cylinder (2) to the dropping box (3).

2. The material conveying structure according to claim 1, characterized in that, The auger blade (5) includes: Fixed blade (501), the fixed blade (501) is fixed on the central shaft (4); Movable blade (502), which is slidably connected to the central shaft (4); A telescopic space is provided between the fixed blade (501) and the movable blade (502); When the movable blade (502) moves toward the fixed blade (501), the telescopic space shrinks and the material conveying channel inside the conveying cylinder (2) becomes larger.

3. The material conveying structure according to claim 2, characterized in that, Multiple sliding grooves (401) are provided on the side wall of the central shaft (4), and sliding rods (6) are slidably connected in each of the multiple sliding grooves (401). The multiple sliding rods (6) are fixedly connected to the movable blades (502). Among them, the end of the central shaft (4) is fitted with a sliding sleeve (7), multiple sliding rods (6) are fixed on the sliding sleeve (7), a pull ring (8) is fitted on the sliding sleeve (7), and an oil cylinder (9) for pulling the pull ring (8) is fixed on the side wall of the receiving box (1).

4. The material conveying structure according to claim 1, characterized in that, A motor (10) is fixed on the receiving box (1), a drive gear (11) is fixed on the output shaft of the motor (10), and a driven gear (12) is fixed at the end of the central shaft (4). The drive gear (11) and the driven gear (12) are meshed and connected. When the motor (10) starts, the motor (10) drives the central shaft (4) to rotate through the transmission of the driving gear (11) and the driven gear (12).

5. A material conveying structure according to claim 1, characterized in that, The outer side of the conveying cylinder (2) is fitted with an insulation layer (17).

6. A material conveying structure according to claim 5, characterized in that, The insulation layer (17) has heating tubes (13) evenly distributed inside for heating and drying the material in the conveying cylinder (2). A heating module (14) is fixed on the side wall of the insulation layer (17), and the heating module (14) is electrically connected to the heating tubes (13).

7. The material conveying structure according to claim 1, characterized in that, A rotating roller (15) is fixed inside the receiving box (1) and above the central shaft (4). Multiple rollers (16) for stirring the material in the receiving box (1) are distributed circumferentially on the rotating roller (15).

8. The material conveying structure according to claim 1, characterized in that, The rotating roller (15) is arranged parallel to the axis of the central shaft (4), and the rotating roller (15) is connected to the central shaft (4) via a belt.

9. A material conveying structure according to claim 1, characterized in that, The lower end of the discharge box (3) is provided with a feed port that is connected to the extruder.

10. A feeding bin, characterized in that, Includes the material conveying structure as described in any one of claims 1-9.

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