Automatic raw material mixing equipment for curing agent production
By combining a toothed ring, a rotating block, and a stirring shaft, the problem of low mixing efficiency in parts far from the stirring shaft in multi-shaft mixing equipment is solved, achieving uniform mixing of raw materials throughout the mixing tank and improving overall efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN LINGWAN NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-12
AI Technical Summary
The fixed connection of the mixing shaft in existing multi-shaft mixing equipment results in low mixing efficiency of raw materials far from the mixing shaft, leading to a decrease in overall mixing efficiency.
It adopts a combination structure of gear ring, rotating block, stirring shaft, stirring blade, gear, limit ring and motor assembly. Through gear meshing and limit block cooperation, the stirring shaft realizes circumferential and rotational motion, ensuring that the raw materials in all parts of the mixing tank are fully stirred.
This improved the mixing efficiency of the raw materials in each part of the mixing tank, ensuring the overall mixing efficiency and the stability of the mixing process.
Smart Images
Figure CN224221176U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a mixer with a rotating stirring device in a fixed container; in the field of blending machine technology, specifically to an automatic raw material mixing equipment for the production of curing agents. Background Technology
[0002] Curing agents are a class of additives that enable thermosetting resins to form a three-dimensional network structure through chemical reactions. Waterborne epoxy resin curing agents are a new type of environmentally friendly curing agent. Due to their advantages such as low volatility, low toxicity, and low odor, they are gradually being widely used in coatings, adhesives, plastics and other fields. When producing waterborne epoxy resin curing agents, the raw materials are usually put into the inside of the mixing equipment and then stirred and mixed by the mixing equipment.
[0003] Mixing equipment comes in different types, such as single-shaft mixers and multi-shaft mixers. Multi-shaft mixers are characterized by faster mixing efficiency. However, the mixing shafts of multi-shaft mixers are usually fixedly connected, meaning that these shafts can only mix at fixed positions. This results in different mixing efficiencies for materials at different locations; materials farther from the mixing shaft have lower mixing efficiency than those closer to the shaft. Furthermore, the mixing process is only complete after all materials have been mixed, which reduces the overall mixing efficiency of the materials. Utility Model Content
[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an automatic raw material mixing device for curing agent production, which has the function of stirring raw materials in different positions inside the device, thereby making the stirring efficiency of raw materials in each part of the device the same, and thus improving the overall mixing efficiency of raw materials.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic raw material mixing device for curing agent production, including a mixing tank, a support leg fixedly connected to the lower side of the mixing tank, and a top cover installed on the upper side of the mixing tank;
[0006] A feed funnel is fixedly connected to the upper side of the top cover, and the feed funnel is connected to the inside of the mixing tank;
[0007] A discharge pipe is fixedly connected to the left side of the outer surface of the mixing tank. The discharge pipe is connected to the inside of the mixing tank and a valve is installed on the discharge pipe. The mixing tank is equipped with a stirring mechanism, which can stir all parts of the mixing tank.
[0008] The stirring mechanism includes a gear ring, a rotating block, three stirring shafts, several stirring blades, three gears, three limiting rings, three limiting blocks, a motor assembly, a first ring groove, a second ring groove, a first connecting ring, and a second connecting ring.
[0009] Preferably, the toothed ring is fixedly connected to the bottom wall of the mixing tank, and the rotating block is installed on the upper side of the toothed ring;
[0010] The rotating block is located on the lower side of the discharge pipe, with the first annular groove inside the toothed ring and the second annular groove on the upper side of the toothed ring.
[0011] Preferably, the lower side of the second annular groove extends into the interior of the first annular groove, and the first connecting ring is rotatably connected to the interior of the first annular groove;
[0012] The second connecting ring is fixedly connected to the upper side of the first connecting ring. The upper side of the second connecting ring is fixedly connected to the rotating block through the second ring groove. All three stirring shafts are installed on the upper side of the rotating block.
[0013] Preferably, the three stirring shafts are arranged in a circular array, and the lower ends of the three stirring shafts all rotate through the rotating block;
[0014] Several stirring blades are fixedly connected to the outer surfaces of three stirring shafts, and the stirring blades are all set on the upper side of the rotating block.
[0015] Preferably, the three gears are respectively fixedly sleeved on the outer surfaces of the three stirring shafts, and all three gears are located on the lower side of the rotating block;
[0016] All three gears mesh with the gear ring, and all three limiting rings are located inside the rotating block.
[0017] Preferably, the three limiting blocks are respectively fixedly sleeved on the outer surfaces of the three stirring shafts, the three limiting blocks are respectively rotatably connected inside the three limiting rings, and the motor assembly is fixedly connected to the lower side of the mixing tank.
[0018] Preferably, the output end of the motor assembly is fixedly connected to a drive shaft, the upper end of which extends rotatably into the interior of the mixing tank, and the upper end of the drive shaft is fixedly connected to the lower side of the rotating block.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] (1) The automatic raw material mixing equipment for the production of the curing agent can stir the raw materials in different positions inside the mixing tank, thereby making the stirring efficiency of each part of the raw materials inside the mixing tank the same, thus improving the overall mixing efficiency of the raw materials.
[0021] (2) The automatic raw material mixing equipment for the production of the curing agent has a limiting block that moves within a limiting ring, a first connecting ring that rotates within a first ring groove, and a second connecting ring that engages with a second ring groove. These limiting structures effectively restrict the range of motion of the stirring shaft and the rotating block, preventing them from shaking during movement and ensuring the stability of the stirring process. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0023] Figure 1 This is a schematic diagram of an automatic raw material mixing device for producing curing agents according to this utility model;
[0024] Figure 2 This is a cross-sectional connection diagram of the mixing tank of this utility model;
[0025] Figure 3 This is a schematic diagram of the cross-sectional connection structure of the toothed ring and the rotating block of this utility model;
[0026] Figure 4 for Figure 3 Enlarged diagram of point A.
[0027] Reference numerals in the attached drawings: 1. Mixing tank; 2. Support leg; 3. Top cover; 4. Feed funnel; 5. Discharge pipe; 6. Gear ring; 7. Rotating block; 8. Stirring shaft; 9. Stirring blade; 10. Gear; 11. Limiting ring; 12. Limiting block; 13. Motor assembly; 14. Drive shaft; 15. First annular groove; 16. Second annular groove; 17. First connecting ring; 18. Second connecting ring. Detailed Implementation
[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0032] Please see Figure 1-4 This utility model provides a new technical solution: an automatic raw material mixing device for curing agent production, including a mixing tank 1, a support leg 2 fixedly connected to the lower side of the mixing tank 1, a top cover 3 installed on the upper side of the mixing tank 1, a feed funnel 4 fixedly connected to the upper side of the top cover 3, the feed funnel 4 communicating with the interior of the mixing tank 1, a discharge pipe 5 fixedly connected to the left side of the outer surface of the mixing tank 1, the discharge pipe 5 communicating with the interior of the mixing tank 1, a valve installed on the discharge pipe 5, and a stirring mechanism provided inside the mixing tank 1, which can stir all parts inside the mixing tank 1. The stirring mechanism includes a toothed ring 6, a rotating block 7, three stirring shafts 8, several stirring blades 9, three gears 10, three limiting rings 11, three limiting blocks 12, a motor assembly 13, a first ring groove 15, a second ring groove 16, a first connecting ring 17, and a second connecting ring 18.
[0033] Furthermore, the toothed ring 6 is fixedly connected to the bottom wall of the mixing tank 1, the rotating block 7 is installed on the upper side of the toothed ring 6, the rotating block 7 is provided on the lower side of the discharge pipe 5, the first annular groove 15 is opened inside the toothed ring 6, the second annular groove 16 is opened on the upper side of the toothed ring 6, the lower side of the second annular groove 16 extends into the interior of the first annular groove 15, the first connecting ring 17 is rotatably connected inside the first annular groove 15, the second connecting ring 18 is fixedly connected to the upper side of the first connecting ring 17, the upper side of the second connecting ring 18 is fixedly connected to the rotating block 7 through the second annular groove 16, the three stirring shafts 8 are all installed on the upper side of the rotating block 7, the three stirring shafts 8 are arranged in a ring array, the lower ends of the three stirring shafts 8 all rotate through the rotating block 7, and several stirring blades 9 are fixedly connected to the outer surface of the three stirring shafts 8 respectively, and several stirring blades 9 are all provided on the upper side of the rotating block 7.
[0034] Furthermore, three gears 10 are respectively fixedly sleeved on the outer surfaces of three stirring shafts 8. All three gears 10 are located on the lower side of the rotating block 7. All three gears 10 are meshed with the gear ring 6. All three limiting rings 11 are opened inside the rotating block 7. All three limiting blocks 12 are respectively fixedly sleeved on the outer surfaces of the three stirring shafts 8. All three limiting blocks 12 are respectively rotatably connected to the inside of the three limiting rings 11. The motor assembly 13 is fixedly connected to the lower side of the mixing tank 1. The output end of the motor assembly 13 is fixedly connected to a drive shaft 14. The upper end of the drive shaft 14 rotatably extends into the interior of the mixing tank 1. The upper end of the drive shaft 14 is fixedly connected to the lower side of the rotating block 7.
[0035] Furthermore, at the start of operation, the raw materials are first poured into the mixing tank 1 through the feed funnel 4. Then, the motor assembly 13 is started, which drives the transmission shaft 14 to rotate. The transmission shaft 14 drives the rotating block 7 to rotate synchronously, and the rotating block 7 drives the three stirring shafts 8 to move. The three stirring shafts 8 all move in a circle with the transmission shaft 14 as the center. The three stirring shafts 8 drive the stirring blades 9 to move synchronously, thereby stirring and mixing the raw materials. At this time, the raw materials in different positions inside the mixing tank 1 can be stirred by the stirring blades 9. At the same time, the three stirring shafts 8 drive the three gears 10 to move synchronously. When the three gears 10 move, they mesh with the gear ring 6, and the three gears 10 rotate. The three gears 10 drive the three stirring shafts 8 to rotate synchronously, and the three stirring shafts 8 drive the stirring blades 9 to rotate synchronously, thereby further improving the mixing efficiency of the raw materials.
[0036] While the mixing process is underway, the three limiting blocks 12 are confined within the three limiting rings 11, thereby limiting the movement of the three stirring shafts 8 and improving their stability. Simultaneously, when the rotating block 7 rotates, it drives the second annular groove 16 to rotate synchronously. The second annular groove 16 drives the first connecting ring 17 to rotate synchronously. The first connecting ring 17 is confined within the first annular groove 15, thereby limiting the rotation of the rotating block 7 and ensuring its stability during movement.
[0037] Furthermore, in this way, the raw materials in different locations inside the mixing tank 1 can be stirred, thereby ensuring that the stirring efficiency of the raw materials in each part of the mixing tank 1 is the same, thus improving the overall mixing efficiency of the raw materials.
[0038] Structural Description: Mixing Tank 1: As the main container for mixing raw materials, it is used to hold the raw materials to be mixed and provide working space for the stirring mechanism.
[0039] Support leg 2: Supports mixing tank 1, keeping it stable and preventing the equipment from shaking or tipping over during mixing.
[0040] Top cover 3: Installed on the upper side of mixing tank 1, it serves to seal mixing tank 1, prevent raw materials from overflowing during the mixing process, and provide an installation position for components such as feed funnel 4.
[0041] Feed hopper 4: It is connected to the inside of mixing tank 1 and is used to introduce raw materials into mixing tank 1 for easy addition of raw materials.
[0042] Discharge pipe 5: It is connected to the interior of mixing tank 1 and installed on the left side of the outer surface of mixing tank 1. It is used to discharge the mixed raw materials from mixing tank 1. The valve installed on discharge pipe 5 can control the discharge amount of raw materials.
[0043] Gear ring 6: It is fixedly connected to the bottom wall of the mixing tank 1 and meshes with three gears 10. When the three gears 10 move with the stirring shaft 8, the gear ring 6 causes the three gears 10 to rotate, thereby driving the stirring shaft 8 and the stirring blades 9 to rotate, thus improving the mixing efficiency of raw materials.
[0044] Rotating block 7: Installed on the upper side of gear ring 6, driven by motor assembly 13 through transmission shaft 14 to rotate, thereby driving three stirring shafts 8 to perform circular motion and realize stirring function.
[0045] Stirring shafts 8: There are three stirring shafts 8, all mounted on the upper side of the rotating block 7 and arranged in a circular array, with their lower ends rotating through the rotating block 7. The stirring shafts 8 rotate in a circular motion driven by the rotating block 7, and at the same time rotate on their own axis under the action of the gear 10, driving the stirring blades 9 to stir and mix the raw materials.
[0046] Stirring blades 9: Several stirring blades 9 are fixedly connected to the outer surfaces of three stirring shafts 8 and are set on the upper side of the rotating block 7. The stirring blades 9 stir the raw materials in the mixing tank 1 with the movement of the stirring shafts 8, so that the raw materials are fully mixed.
[0047] Gear 10: There are three gears 10, which are fixedly sleeved on the outer surfaces of the three stirring shafts 8 and set on the lower side of the rotating block 7. The gears 10 are meshed with the gear ring 6. When the stirring shaft 8 moves with the rotating block 7, the gear ring 6 causes the gear 10 to rotate, thereby driving the stirring shaft 8 and the stirring blade 9 to rotate.
[0048] Limiting ring 11: There are three limiting rings 11, all of which are opened inside the rotating block 7. They are used to cooperate with the limiting block 12 to limit the stirring shaft 8 and ensure the stability of the stirring shaft 8 during the movement.
[0049] Limiting blocks 12: There are three limiting blocks 12, which are fixedly sleeved on the outer surfaces of the three stirring shafts 8 and rotatably connected inside the three limiting rings 11. The limiting blocks 12 move within the limiting rings 11, restricting the range of motion of the stirring shafts 8, preventing the stirring shafts 8 from shaking, and improving the stability of stirring.
[0050] Motor assembly 13: Fixedly connected to the lower side of mixing tank 1, providing power to the stirring mechanism. The output end of motor assembly 13 is fixedly connected to drive shaft 14, which drives rotating block 7 to rotate, thereby driving stirring shaft 8 and stirring blades 9 to move.
[0051] Drive shaft 14: The upper end extends rotatably into the interior of mixing tank 1, and the upper end is fixedly connected to the lower side of rotating block 7. Driven by motor assembly 13, drive shaft 14 rotates and transmits power to rotating block 7, causing rotating block 7 to drive stirring shaft 8 and stirring blades 9 to perform stirring.
[0052] First annular groove 15: It is formed inside the toothed ring 6 and cooperates with the first connecting ring 17 to limit the first connecting ring 17 and ensure the stability of the first connecting ring 17 during rotation.
[0053] The second annular groove 16 is formed on the upper side of the toothed ring 6 and extends into the interior of the first annular groove 15 on the lower side. The second annular groove 16 cooperates with the second connecting ring 18, so that the second connecting ring 18 can rotate with the rotation of the rotating block 7, and at the same time, it limits the second connecting ring 18 to a certain extent.
[0054] The first connecting ring 17 is rotatably connected inside the first ring groove 15, and its upper side is fixedly connected to the second connecting ring 18. The first connecting ring 17 rotates within the first ring groove 15, serving to connect and transmit power, and ensuring the stability of the rotation of the rotating block 7.
[0055] The second connecting ring 18 is fixedly connected to the upper side of the first connecting ring 17, and its upper side is fixedly connected to the rotating block 7 through the second annular groove 16. The second connecting ring 18 connects the first connecting ring 17 and the rotating block 7, so that the rotation of the rotating block 7 can drive the first connecting ring 17 to rotate within the first annular groove 15. At the same time, the second annular groove 16 limits the rotation of the rotating block 7, improving the stability of the rotation of the rotating block 7.
[0056] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An automatic raw material mixing device for curing agent production, comprising a mixing tank (1), a support leg (2) fixedly connected to the lower side of the mixing tank (1), and a top cover (3) installed on the upper side of the mixing tank (1); A feed funnel (4) is fixedly connected to the upper side of the top cover (3), and the feed funnel (4) is connected to the interior of the mixing tank (1); A discharge pipe (5) is fixedly connected to the left side of the outer surface of the mixing tank (1). The discharge pipe (5) is connected to the interior of the mixing tank (1). A valve is installed on the discharge pipe (5). The characteristic feature is that: The mixing tank (1) is equipped with a stirring mechanism, which can stir all parts of the mixing tank (1). The stirring mechanism includes a gear ring (6), a rotating block (7), three stirring shafts (8), several stirring blades (9), three gears (10), three limiting rings (11), three limiting blocks (12), a motor assembly (13), a first ring groove (15), a second ring groove (16), a first connecting ring (17), and a second connecting ring (18).
2. The automatic raw material mixing equipment for curing agent production according to claim 1, characterized in that: The toothed ring (6) is fixedly connected to the bottom wall of the mixing tank (1), and the rotating block (7) is installed on the upper side of the toothed ring (6); The rotating block (7) is located on the lower side of the discharge pipe (5), the first annular groove (15) is opened inside the toothed ring (6), and the second annular groove (16) is opened on the upper side of the toothed ring (6).
3. The automatic raw material mixing equipment for curing agent production according to claim 2, characterized in that: The lower side of the second annular groove (16) extends into the interior of the first annular groove (15), and the first connecting ring (17) is rotatably connected to the interior of the first annular groove (15); The second connecting ring (18) is fixedly connected to the upper side of the first connecting ring (17). The upper side of the second connecting ring (18) is fixedly connected to the rotating block (7) through the second ring groove (16). All three stirring shafts (8) are installed on the upper side of the rotating block (7).
4. The automatic raw material mixing equipment for curing agent production according to claim 3, characterized in that: The three stirring shafts (8) are arranged in a ring array, and the lower ends of the three stirring shafts (8) all rotate through the rotating block (7); Several stirring blades (9) are fixedly connected to the outer surfaces of three stirring shafts (8), and several stirring blades (9) are all set on the upper side of the rotating block (7).
5. The automatic raw material mixing equipment for curing agent production according to claim 1, characterized in that: The three gears (10) are respectively fixedly sleeved on the outer surface of the three stirring shafts (8), and the three gears (10) are all set on the lower side of the rotating block (7); All three gears (10) are meshed with the gear ring (6), and all three limiting rings (11) are located inside the rotating block (7).
6. The automatic raw material mixing equipment for curing agent production according to claim 1, characterized in that: The three limiting blocks (12) are respectively fixedly sleeved on the outer surface of the three stirring shafts (8), and the three limiting blocks (12) are respectively rotatably connected to the inside of the three limiting rings (11). The motor assembly (13) is fixedly connected to the lower side of the mixing tank (1).
7. The automatic raw material mixing equipment for curing agent production according to claim 6, characterized in that: The output end of the motor assembly (13) is fixedly connected to a drive shaft (14), the upper end of the drive shaft (14) extends rotatably into the interior of the mixing tank (1), and the upper end of the drive shaft (14) is fixedly connected to the lower side of the rotating block (7).