Double shaft mixer seal-in feed structure
By designing a sealing structure with a feeding hopper, support ring, and sealing ring in the twin-shaft mixer, and combining it with a servo motor-driven conveyor belt to transport materials, the problem of dust splashing during the mixer's feeding process was solved, achieving sealed feeding and stable conveying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU FAST INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-26
AI Technical Summary
The feeding method of existing twin-shaft mixers causes material to splash and dust to fly out, and lacks sealing.
The design incorporates a hopper, a support ring, and a first sealing ring to achieve a seal. The feeding mechanism seals the feed inlet of the mixer through the support ring, and the transmission roller driven by a servo motor drives the conveyor belt to transport materials. The height of the support plate can be adjusted to accommodate different feed inlets.
This technology enables sealed feeding of the mixer, preventing dust splashing and improving the stability and safety of the feeding process.
Smart Images

Figure CN224405033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mixer feeding technology, specifically a sealed feeding structure for a dual-shaft mixer. Background Technology
[0002] The twin-shaft mixer can mix a variety of materials, including organic fertilizer raw materials, coal, tar residue, dry mortar, chemical raw materials, pesticides, detergents, pigments, food, plastics, rubber additives, etc.
[0003] The feeding methods for twin-shaft mixers are typically as follows: manually pouring material into the mixer's inlet, feeding material into the mixer's inlet via a conveyor belt, or feeding material into the mixer's inlet using a forklift. However, regardless of the feeding method, none of them are sealed feed systems. After the material enters the inlet, dust (such as tar residue) will splash out. Utility Model Content
[0004] In view of the problems existing in the sealed feeding structure of the existing twin-shaft mixer, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide a sealed feeding structure for a twin-shaft mixer, solving the problem of the following feeding methods for twin-shaft mixers: manually pouring material into the mixer's inlet, guiding material into the mixer's inlet via a conveyor belt, or using a forklift to guide material into the mixer's inlet. However, regardless of the feeding method, none of them are sealed feeding methods, and the material will splash up dust and fly out after entering the inlet.
[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0007] A sealed feeding structure for a twin-shaft mixer includes a feeding hopper with a support ring at the bottom. A first sealing ring is bonded to the bottom of the support ring. When the support ring covers the feed inlet of the mixer, a seal is achieved between the support ring and the feed inlet of the mixer.
[0008] The feeding hopper is connected to a feeding mechanism, which feeds the material into the feeding hopper and then into the feeding inlet of the mixer.
[0009] As a preferred embodiment of the sealed feeding structure of the dual-shaft mixer described in this utility model, the feeding mechanism includes a pipe body, a conveying assembly is installed on the pipe body, a feeding hopper is provided at the bottom of the end of the pipe body, and a sealing plate is provided at the right end of the pipe body.
[0010] As a preferred embodiment of the sealed feeding structure of the dual-shaft mixer described in this utility model, the conveying assembly includes a first transmission roller rotatably connected between the pipes by bearings, the first transmission roller being connected to a second transmission roller via a conveyor belt, both ends of the second transmission roller being rotatably connected to a bracket via bearings, the second transmission roller being connected to a servo motor, and the servo motor being fixedly mounted on the bracket.
[0011] In a preferred embodiment of the sealed feeding structure of the dual-shaft mixer described in this utility model, an active synchronous pulley is fixedly installed on the output shaft of the servo motor, a driven synchronous pulley is fixedly installed at one end of the second transmission roller, and the active synchronous pulley and the driven synchronous pulley are connected by a synchronous belt drive.
[0012] As a preferred embodiment of the sealed feeding structure of the dual-shaft mixer described in this utility model, a baffle is welded to the top of the inner cavity at the end of the tube.
[0013] As a preferred embodiment of the sealed feeding structure of the dual-shaft mixer described in this utility model, the bottom left end of the tube body is provided with a through hole to accommodate the first transmission roller, and a second sealing ring is bonded inside the through hole.
[0014] As a preferred embodiment of the sealed feeding structure of the dual-shaft mixer described in this utility model, a threaded rod is installed at the bottom of the bracket, and an internally threaded support tube is threadedly connected to the bottom end of the threaded rod. A bottom support plate is welded to the bottom of the internally threaded support tube.
[0015] As a preferred embodiment of the sealed feeding structure of the dual-shaft mixer described in this utility model, the bottom of the bracket is welded with a support connecting seat, the top end of the threaded rod is inserted into the support connecting seat, and internal threaded holes are opened at corresponding positions of the support connecting seat and the threaded rod, and the support connecting seat and the threaded rod are fixed together by bolts.
[0016] Compared with existing technologies:
[0017] By setting the feeding hopper to connect with the feed inlet of the mixer, and sealing the feed inlet of the mixer with the support ring and the first sealing ring, and introducing the material into the feeding hopper through the feeding mechanism, the sealed feeding of the mixer is achieved, avoiding dust splashing during feeding.
[0018] By setting a threaded rod at the bottom of the support, and threading an internal threaded support tube at the bottom of the threaded rod, the height of the bottom support plate can be adjusted by rotating the internal threaded support tube, thus facilitating the docking between the feeding hopper and the feed inlet of the mixer of different heights. Attached Figure Description
[0019] Figure 1This is a structural schematic diagram of the present invention;
[0020] Figure 2 Provided by this utility model Figure 1 A partial sectional view;
[0021] Figure 3 Provided by this utility model Figure 2 Enlarged view of point A in the middle;
[0022] Figure 4 Provided for this utility model Figure 2 Enlarged view at point B
[0023] In the figure: 1. Injection hopper, 2. Support ring, 3. First sealing ring, 4. Pipe body, 5. Feed hopper, 8. Threaded rod, 9. Internal threaded support pipe, 10. Bottom support plate, 11. First transmission roller, 12. Second sealing ring, 13. Conveyor belt, 14. Support roller, 15. Support connecting seat, 16. Bracket, 17. Servo motor, 18. Second transmission roller, 19. Baffle, 20. Sealing plate. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0025] This utility model provides a sealed feeding structure for a dual-shaft mixer. Please refer to [link / reference]. Figure 1-4 The hopper includes a feeding hopper 1, the bottom of which has a support ring 2. A first sealing ring 3 is bonded to the bottom of the support ring 2. When the support ring 2 covers the feed inlet of the mixer, a seal is achieved between the support ring 2 and the feed inlet of the mixer.
[0026] The feeding hopper 1 is connected to a feeding mechanism, which feeds the material into the feeding hopper 1 and then into the feeding inlet of the mixer.
[0027] The feeding mechanism includes a pipe body 4, on which a conveying assembly is installed. The bottom end of the pipe body 4 has a feeding hopper 5, and a sealing plate 20 is provided at the right end of the pipe body 4.
[0028] The conveying assembly includes a first transmission roller 11 rotatably connected between the tube bodies 4 via bearings. The first transmission roller 11 is connected to a second transmission roller 18 via a conveyor belt 13. Both ends of the second transmission roller 18 are rotatably connected to a bracket 16 via bearings. The second transmission roller 18 is connected to a servo motor 17, which is fixedly mounted on the bracket 16. Multiple support rollers 14 are installed at equal intervals at the bottom of the inner cavity of the tube body 4. The multiple support rollers 14 are located below the top of the conveyor belt 13, which plays a role in ensuring the stability of the top of the conveyor belt 13, thereby ensuring the stable and reliable material conveying.
[0029] A baffle 19 is welded to the top of the inner cavity at the end of the tube 4. The bottom of the baffle 19 is directly opposite the second drive roller 18. When the material is poured into the feed hopper 5, it falls onto the conveyor belt 13 under the protection of the baffle 19.
[0030] The bottom left end of the tube 4 has a through hole for accommodating the first drive roller 11. A second sealing ring 12 is bonded inside the through hole. The second sealing ring 12 is in elastic contact with the first drive roller 11 and serves to seal the through hole. The tube 4 is fixed to the feed inlet of the mixer by bolts.
[0031] A driving synchronous pulley is fixedly installed on the output shaft of the servo motor 17, and a driven synchronous pulley is fixedly installed at one end of the second transmission roller 18. The driving synchronous pulley and the driven synchronous pulley are connected by a synchronous belt drive.
[0032] A threaded rod 8 is installed at the bottom of the bracket 16. The bottom end of the threaded rod 8 is threadedly connected to an internally threaded support tube 9. A bottom support plate 10 is welded to the bottom of the internally threaded support tube 9. By rotating the internally threaded support tube 9, the depth of the threaded rod 8 extending into the internally threaded support tube 9 is adjusted, thereby adjusting the height of the bottom support plate 10 so that the bottom support plate 10 contacts the ground.
[0033] The bottom of the bracket 16 is welded with a support connecting seat 15, and the top end of the threaded rod 8 is inserted into the support connecting seat 15. The support connecting seat 15 and the threaded rod 8 are provided with internal threaded holes at corresponding positions, and the support connecting seat 15 and the threaded rod 8 are fixed together by bolts.
[0034] In practical use:
[0035] The support ring 2 is placed over the feed inlet of the mixer, and the first sealing ring 3 is used to seal the feed hopper 1 and the feed inlet of the mixer.
[0036] By rotating the internally threaded support tube 9, the depth to which the threaded rod 8 extends into the internally threaded support tube 9 is adjusted, thereby adjusting the height of the bottom support plate 10 so that the bottom support plate 10 contacts the ground.
[0037] The material is poured into the feed hopper 5. Under the protection of the baffle 19, the material falls onto the conveyor belt 13. The servo motor 17 is started to drive the second transmission roller 18 to rotate, so that the conveyor belt 13 drives and transports the material. After the material is transported into the feeding hopper 1, it falls into the feed port of the mixer.
[0038] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A sealed feeding structure for a twin-shaft mixer, comprising a feeding hopper (1), characterized in that: The bottom of the feeding hopper (1) has a support ring (2), and a first sealing ring (3) is bonded to the bottom of the support ring (2). When the support ring (2) covers the feed inlet of the mixer, a seal is achieved between it and the feed inlet of the mixer. The feeding hopper (1) is connected to a feeding mechanism. The feeding mechanism guides the material into the feeding hopper (1) and then it falls into the feeding port of the mixer.
2. The sealed feed structure for the twin-shaft mixer according to claim 1, characterized in that, The feeding mechanism includes a pipe (4), on which a conveying assembly is installed. The bottom of the end of the pipe (4) has a feeding hopper (5), and a sealing plate (20) is provided at the right end of the pipe (4).
3. The sealed feed structure for the twin-shaft mixer according to claim 2, characterized in that, The conveying assembly includes a first transmission roller (11) that is rotatably connected between tubes (4) via bearings. The first transmission roller (11) is connected to a second transmission roller (18) via a conveyor belt (13). Both ends of the second transmission roller (18) are rotatably connected to a bracket (16) via bearings. The second transmission roller (18) is connected to a servo motor (17), which is fixedly mounted on the bracket (16).
4. The sealed feed structure for the twin-shaft mixer according to claim 3, characterized in that, The servo motor (17) has a driving synchronous pulley fixedly installed on its output shaft, and a driven synchronous pulley is fixedly installed at one end of the second transmission roller (18). The driving synchronous pulley and the driven synchronous pulley are connected by a synchronous belt drive.
5. The sealed feed structure for the twin-shaft mixer according to claim 3, characterized in that, A baffle (19) is welded to the top of the inner cavity at the end of the tube (4).
6. The sealed feed structure for the twin-shaft mixer according to claim 2, characterized in that, The bottom left end of the tube (4) is provided with a through hole to accommodate the first transmission roller (11), and a second sealing ring (12) is bonded inside the through hole.
7. The sealed feed structure for the twin-shaft mixer according to claim 4, characterized in that, The bottom of the bracket (16) is fitted with a threaded rod (8), the bottom end of which is threadedly connected to an internally threaded support tube (9), and the bottom of the internally threaded support tube (9) is welded with a bottom support plate (10).
8. The sealed feed structure for a twin-shaft mixer according to claim 7, characterized in that, The bottom of the bracket (16) is welded with a support connecting seat (15), the top end of the threaded rod (8) is inserted into the support connecting seat (15), and the support connecting seat (15) and the threaded rod (8) are provided with internal threaded holes at corresponding positions, and the support connecting seat (15) and the threaded rod (8) are fixed together by bolts.