Spiral conveyor with double feed ports

Abstract

The utility model provides a screw conveyer with double feed ports, which comprises a first motor, a main feed delivery pipe, an auxiliary feed delivery pipe, a hopper, a first screw rod, a second screw rod, a support frame and a driving component, the auxiliary feed delivery pipe is vertically arranged, the hopper is fixedly arranged at the top of the auxiliary feed delivery pipe, and the feed ports are arranged at the bottom of the side wall of the auxiliary feed delivery pipe; the main material conveying pipe is obliquely arranged, the bottom end of the main material conveying pipe is communicated with the middle of the auxiliary material conveying pipe, the first screw rod is arranged in the main material conveying pipe, the first motor is fixedly connected with the upward end of the main material conveying pipe, and an output shaft of the first motor is fixedly connected with the first screw rod; and the second screw rod is a bidirectional screw rod. According to the feeding device, the problem that materials cannot enter a conveyor from the lower side due to the fact that only a single feeding port is arranged and the feeding port faces upwards is solved, and the flexibility of a feeding mode is improved.

Description

Technical Field

[0001] This utility model relates to the field of screw conveyor technology, and in particular to a screw conveyor with dual feed inlets. Background Technology

[0002] In the rosin harvesting and processing industry, efficient and stable rosin conveying is crucial for ensuring production continuity and product quality. Traditional rosin conveying equipment often has a simple structure and limited feeding methods, making it difficult to adapt to complex and ever-changing processing scenarios. Rosin is highly viscous and easily solidifies, exhibiting strong adhesion to the inner walls of equipment during conveying and being easily affected by temperature and environmental factors, thus altering its physical state. Conventional screw conveyors mostly employ a single inlet design, typically with the inlet facing upwards. When facing multiple feeding sources or requiring flexible adjustments to the inlet position, operation becomes cumbersome and inefficient. Therefore, optimization of screw conveyors is necessary. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a screw conveyor with dual feed inlets, which solves the problem that existing technologies have only a single feed inlet facing upwards, preventing materials from entering the conveyor from below.

[0004] According to an embodiment of this utility model, a screw conveyor with dual feed inlets includes a first motor, a main feed pipe, a secondary feed pipe, a hopper, a first screw rod, a second screw rod, a support frame, and a drive assembly. The secondary feed pipe is vertically arranged, and the hopper is fixedly arranged at the top of the secondary feed pipe. A feed inlet is provided at the bottom of the side wall of the secondary feed pipe. The main feed pipe is inclined, and its bottom end is connected to the middle of the secondary feed pipe. The first screw rod is disposed inside the main feed pipe. The first motor is fixedly connected to the upward-facing end of the main feed pipe, and the output shaft of the first motor is fixedly connected to the first screw rod. The second screw rod is a bidirectional screw rod, and the rotation direction conversion point of the bidirectional screw rod is located at the connection between the main feed pipe and the secondary feed pipe. The drive assembly is used to drive the second screw rod to rotate. The main feed pipe and the support frame are fixedly connected.

[0005] The technical principle of this utility model is as follows: a secondary conveying pipe is set at the bottom of the main conveying pipe, and the material can be transported from the upper and lower ends of the secondary conveying pipe to the main conveying pipe by the rotation of the second screw.

[0006] Preferably, the drive assembly includes a second motor, a first gear, and a second gear. The rotation direction conversion point of the first gear and the second screw is fixedly connected. The upper and lower end faces of the first gear are rotatably connected to the auxiliary feed pipe. The second motor is fixedly connected to the outer wall of the auxiliary feed pipe. The second gear is fixedly connected to the output shaft of the second motor. The second gear meshes with the first gear.

[0007] Preferably, a protective sleeve is fixedly installed in the middle of the auxiliary conveying pipe. The protective sleeve is a cylindrical shell. The first gear is located inside the protective sleeve. The protective sleeve has an opening at the meshing point of the first gear and the second gear. The central shaft of the second spiral rod is rotatably connected to the upper and lower ends of the protective sleeve. The blades of the second spiral rod are disconnected in the axial region corresponding to the installation position of the protective sleeve.

[0008] Preferably, the side wall of the auxiliary conveying pipe is provided with a discharge port, and the protective sleeve is located at the middle of the vertical direction of the discharge port.

[0009] Preferably, the bottom end of the second screw rod and the bottom end of the auxiliary conveying pipe are rotatably connected.

[0010] Preferably, the feed inlet is provided in three locations around the auxiliary feed pipe.

[0011] Preferably, a protective rod is fixedly connected to the feed inlet, and the protective rod is vertically arranged.

[0012] Preferably, the base surface in contact with the bottom end of the auxiliary conveying pipe is provided with a conical groove, and the auxiliary conveying pipe extends to the bottom of the conical groove.

[0013] Compared to existing technologies, this invention offers the following advantages: The design of feeding from both the top and bottom ends allows material conveying to move beyond a single inlet. In production, materials may originate from storage points at different locations or heights. This design allows for flexible adaptation; regardless of whether materials are conveyed from an upper platform or ground equipment, they can directly enter the secondary conveying pipe without requiring additional material adjustments or transfer equipment. This significantly simplifies the operation process and saves time and labor costs. Even if one feeding end malfunctions, such as a blockage at the upper inlet or a pause in the lower conveying equipment, the other end can still feed normally, ensuring the continuous operation of the screw conveyor and preventing production interruptions due to localized problems. This improves production stability and continuity. In space-constrained production environments, the top and bottom feeding method fully utilizes vertical space, reducing equipment footprint and making the production line layout more compact and rational. This frees up more space for other production stages, contributing to improved overall production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the feed inlet of this utility model.

[0016] In the above attached figures: 1. First motor; 2. Main conveying pipe; 3. First screw rod; 4. Second screw rod; 5. Hopper; 6. Second motor; 7. First gear; 8. Second gear; 9. Protective rod; 10. Feed inlet; 11. Conical groove; 12. Auxiliary conveying pipe; 13. Support frame; 14. Protective sleeve; 15. Discharge outlet. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 As shown in the figure, this utility model embodiment proposes a screw conveyor with dual inlets, including a first motor 1, a main conveying pipe 2, a secondary conveying pipe 12, a hopper 5, a first screw rod 3, a second screw rod 4, a support frame 13, and a drive assembly. The secondary conveying pipe 12 is vertically arranged, and the hopper 5 is fixedly arranged on the top of the secondary conveying pipe 12. The position of the hopper 5 facilitates the receipt of materials transferred from other conveying equipment. A feed inlet 10 is provided at the bottom of the side wall of the secondary conveying pipe 12. The material enters the secondary conveying pipe 12 from the side feed inlet 10. The operator needs to push the material to the feed inlet 10, and the operator can use auxiliary tools to push the material to move. The main conveying pipe 2 is inclined, and its bottom end is connected to the middle of the auxiliary conveying pipe 12. The first screw rod 3 is disposed inside the main conveying pipe 2. The first motor 1 is fixedly connected to the upward-facing end of the main conveying pipe 2, and the output shaft of the first motor 1 is fixedly connected to the first screw rod 3. A discharge port 15 is provided on the side wall of the upward-facing end of the main conveying pipe 2 for discharging the material. The second screw rod 4 is a bidirectional screw rod, and the rotation direction conversion point of the bidirectional screw rod is located at the connection between the main conveying pipe 2 and the auxiliary conveying pipe 12. When the bidirectional screw rod rotates, the material in the upper section of the auxiliary conveying pipe 12 will move upward, and the material in the lower section of the auxiliary conveying pipe 12 will move upward. The driving assembly is used to drive the second screw rod 4 to rotate. The main conveying pipe 2 and the support frame 13 are fixedly connected, and the bottom of the support frame 13 is fixedly disposed. The height of the feed inlet 10 is equal to or less than the pitch of the second screw rod 4 to ensure that the material can move upward effectively.

[0019] Preferably, the drive assembly includes a second motor 6, a first gear 7, and a second gear 8. The first gear 7 and the second screw rod 4 are fixedly connected at their rotation direction reversal points. The upper and lower end faces of the first gear 7 are rotatably connected to the auxiliary conveying pipe 12. The second motor 6 is fixedly connected to the outer wall of the auxiliary conveying pipe 12. The second gear 8 is fixedly connected to the output shaft of the second motor 6, and the second gear 8 meshes with the first gear 7. In this embodiment, the material enters the main conveying pipe 2 through this connection point in the middle of the auxiliary conveying pipe 12. The first motor 1 should be started first to drive the screw rod in the main conveying pipe 2, and then the second motor 6 should be started to drive the screw rod in the auxiliary conveying pipe 12 to avoid material accumulation and blockage at the connection point between the auxiliary conveying pipe 12 and the main conveying pipe 2.

[0020] Preferably, a protective sleeve 14 is fixedly installed in the middle of the auxiliary conveying pipe 12. The protective sleeve 14 is a cylindrical shell, and the first gear 7 is located inside the protective sleeve 14. The diameter of the protective sleeve 14 is larger than the diameter of the auxiliary conveying pipe 12. The protective sleeve 14 has an opening at the meshing point of the first gear 7 and the second gear 8. The central axis of the second spiral rod 4 is rotatably connected to the upper and lower ends of the protective sleeve 14. The blades of the second spiral rod 4 are disconnected in the axial region corresponding to the installation position of the protective sleeve 14. In this embodiment, the protective sleeve 14 prevents the material from contacting the first gear 7, thereby improving the stability of the meshing of the first gear 7 and the second gear 8. A gap is provided between the protective sleeve 14 and the end of the first spiral rod 3 to avoid motion interference.

[0021] Preferably, the side wall of the auxiliary conveying pipe 12 is provided with a discharge port, and the protective sleeve 14 is located at the middle of the vertical direction of the discharge port.

[0022] Preferably, the bottom end of the second screw rod 4 is rotatably connected to the bottom end of the auxiliary conveying pipe 12, providing bottom support for the second screw rod 4 and helping to maintain its coaxiality with the auxiliary conveying pipe 12.

[0023] like Figure 2 As shown, preferably, the feed inlet 10 is provided in three places around the auxiliary feed pipe 12. In this embodiment, the opening arc of the feed inlet 10 is 100°, so that the staff can push the material into the auxiliary feed pipe 12 from all sides.

[0024] like Figure 2 As shown, preferably, a protective rod 9 is fixedly connected to the feed inlet 10. The protective rod 9 is set vertically to prevent the tool that pushes the material from contacting the rotating second spiral rod 4, thereby improving safety.

[0025] Preferably, the base surface in contact with the bottom end of the auxiliary conveying pipe 12 is provided with a conical groove 11, and the auxiliary conveying pipe 12 extends to the bottom of the conical groove 11, so that the workers can collect the remaining materials into the auxiliary conveying pipe 12.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A screw conveyor with dual feed inlets, characterized in that: The system includes a first motor (1), a main conveying pipe (2), a secondary conveying pipe (12), a hopper (5), a first screw rod (3), a second screw rod (4), a support frame (13), and a drive assembly. The secondary conveying pipe (12) is vertically arranged, and the hopper (5) is fixedly arranged at the top of the secondary conveying pipe (12). A feed inlet (10) is provided at the bottom of the side wall of the secondary conveying pipe (12). The main conveying pipe (2) is inclined, and the bottom end of the main conveying pipe (2) is connected to the middle part of the secondary conveying pipe (12). The first screw rod (3) 3) The first motor (1) is fixedly connected to the upward end of the main feed pipe (2), and the output shaft of the first motor (1) is fixedly connected to the first screw rod (3); the second screw rod (4) is a bidirectional screw rod, and the rotation direction conversion point of the bidirectional screw rod is located at the connection between the main feed pipe (2) and the auxiliary feed pipe (12); the driving assembly is used to drive the second screw rod (4) to rotate; the main feed pipe (2) and the support frame (13) are fixedly connected.

2. The screw conveyor with dual feed inlets as described in claim 1, characterized in that: The drive assembly includes a second motor (6), a first gear (7), and a second gear (8). The first gear (7) and the second screw rod (4) are fixedly connected at their rotation direction conversion points. The upper and lower end faces of the first gear (7) are rotatably connected to the auxiliary feed pipe (12). The second motor (6) is fixedly connected to the outer wall of the auxiliary feed pipe (12). The second gear (8) is fixedly connected to the output shaft of the second motor (6). The second gear (8) meshes with the first gear (7).

3. A screw conveyor with dual feed inlets as described in claim 2, characterized in that: A protective sleeve (14) is fixedly installed in the middle of the auxiliary conveying pipe (12). The protective sleeve (14) is a cylindrical shell. The first gear (7) is located inside the protective sleeve (14). The protective sleeve (14) has an opening at the meshing point of the first gear (7) and the second gear (8). The central shaft of the second spiral rod (4) is rotatably connected to the upper and lower ends of the protective sleeve (14). The blades of the second spiral rod (4) are disconnected in the axial region corresponding to the installation position of the protective sleeve (14).

4. A screw conveyor with dual feed inlets as described in claim 3, characterized in that: The side wall of the auxiliary conveying pipe (12) is provided with a discharge port, and the protective sleeve (14) is located in the middle of the vertical direction of the discharge port.

5. A screw conveyor with dual feed inlets as described in claim 1, characterized in that: The bottom end of the second screw rod (4) is rotatably connected to the bottom end of the auxiliary conveying pipe (12).

6. A screw conveyor with dual feed inlets as described in claim 1, characterized in that: The feed inlet (10) is provided in three places around the auxiliary feed pipe (12).

7. A screw conveyor with dual feed inlets as described in claim 6, characterized in that: A protective rod (9) is fixedly connected to the feed inlet (10), and the protective rod (9) is set vertically.

8. A screw conveyor with dual feed inlets as described in claim 1, characterized in that: The base surface in contact with the bottom end of the auxiliary conveying pipe (12) is provided with a conical groove (11), and the auxiliary conveying pipe (12) extends to the bottom of the conical groove (11).

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