Liquid material pretreatment mixing device for PA6 production
The design of the gear ring and stirring rod solves the problem of uneven mixing of liquid materials in PA6 production, achieving a more efficient mixing effect and improving the quality and efficiency of PA6 production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PINGDINGSHAN QIZHENG NEW MATERIAL CO LTD
- Filing Date
- 2025-12-31
- Publication Date
- 2026-07-07
AI Technical Summary
In the existing technology, the liquid material mixing method in the PA6 production process is singular, resulting in uneven mixing and low efficiency.
The mixing device employs a gear and gear ring combination, combined with the design of the first and second stirring rods, to achieve bidirectional mixing of liquid materials. The combination of scraper and conical teeth prevents sedimentation and wall scraping, thereby improving the mixing effect.
This achieves more uniform mixing of liquid materials, improves mixing efficiency and pretreatment effect, and ensures the quality and consistency of PA6 production.
Smart Images
Figure CN224465003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PA6 production technology, specifically to a liquid material pretreatment and mixing device for PA6 production. Background Technology
[0002] PA6 is an important engineering plastic belonging to the polyamide family. Its chemical name is polycaprolactam, produced by the ring-opening polymerization of ε-caprolactam monomers. It possesses excellent mechanical strength, wear resistance, chemical corrosion resistance, and self-lubricating properties, and is widely used in automotive parts, textile fibers, electronics, and mechanical parts. In the production of PA6, the most critical liquid raw material is an aqueous solution of ε-caprolactam. Solid ε-caprolactam is typically mixed with water and heated to melt or dissolve, forming a homogeneous liquid mixture called the "polymerization stock solution" or "monomer solution." This liquid is the base material for subsequent polymerization reactions. During PA6 production, to achieve uniform dispersion of the liquid material and promote dissolution and mass transfer, a mixing device is usually used to pretreat the PA6 liquid material. A mixing device is a mechanical device or system used to uniformly mix two or more materials (liquid, solid, gas or a combination thereof). Through a mixing device, caprolactam, water, molecular weight regulators, stabilizers, etc. can be fully dissolved and uniformly dispersed, avoiding excessively high or low local concentrations, ensuring the consistency and controllability of subsequent polymerization reactions. At the same time, the mixing device can provide shear force and circulating flow, which can accelerate the dissolution rate, shorten the preparation time, and help improve production efficiency.
[0003] In the prior art, when producing PA6, the liquid material of PA6 is often mixed by rotating PA6 with a stirring rod. Since this mixing method is relatively simple, it is not convenient to mix the liquid material in multiple directions, which is not conducive to enhancing the uniformity of mixing and improving the mixing efficiency. Therefore, in order to solve the above problems, a liquid material pretreatment mixing device for PA6 production is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a liquid material pretreatment mixing device for PA6 production, in order to solve the problem mentioned in the background art that the mixing method is relatively simple and not convenient for mixing liquid materials in multiple directions, which makes it difficult to enhance the uniformity of mixing and improve the mixing efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a liquid material pretreatment mixing device for PA6 production, comprising a base, a mixing tank being provided on the top of the base, an inlet being fixedly connected to the top of the mixing tank, an outlet being fixedly connected to the bottom of the mixing tank, a stirring shaft being movably connected to the inner side of the mixing tank, a first stirring rod being fixedly connected to the surface of the stirring shaft, a first motor being fixedly installed on the top of the mixing tank, and the stirring shaft and the output end of the first motor being fixedly connected;
[0006] The surface of the mixing tank is provided with a mixing mechanism, and the inner side of the mixing tank is provided with an auxiliary mechanism.
[0007] The mixing mechanism includes a toothed ring, which is fixedly connected to the surface of the mixing tank, and a gear is provided on the top of the base;
[0008] The auxiliary mechanism includes a scraper, which is fixedly connected to the surface of the first stirring rod, and a second rotating rod is movably arranged inside the mixing tank, with the second stirring rod fixedly connected to the surface of the second rotating rod.
[0009] Preferably, the mixing mechanism further includes a support column, which is fixedly connected to the upper surface of the base, and the toothed ring is movable inside the support column. A fixing ring is fixedly connected to the surface of the toothed ring, and a rotating groove is provided on the inner side of the support column.
[0010] Preferably, the end of the fixed ring away from the toothed ring is movable inside the rotating groove, the surface of the support column is fixedly connected to a fixed block, and the inner side of the fixed block is movably connected to a first rotating rod.
[0011] Preferably, a gear is fixedly connected to the top end of the first rotating rod, and a second motor is fixedly installed at the bottom end of the fixing block. The end of the first rotating rod away from the gear is fixedly connected to the output end of the second motor, and the gear moves inside the support column.
[0012] Preferably, the auxiliary mechanism further includes a connecting frame, which is fixedly connected to the inner wall of the mixing tank, and the stirring shaft is movable inside the connecting frame. The surface of the stirring shaft is fixedly connected with a first conical tooth, and the scraper is arranged in two sets.
[0013] Preferably, the surface of the second rotating rod is fixedly connected with a second conical tooth, and both the first and second conical teeth are movable inside the connecting frame.
[0014] Preferably, the second rotating rod is movably connected to the first conical tooth in four groups, and the second stirring rod is fixedly connected to the second rotating rod in fifteen groups.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. Through the cooperation of gears and gear rings, the gears drive the gear rings to rotate, which in turn causes the mixing tank to rotate. The direction of rotation of the mixing tank is opposite to that of the first stirring rod, which can generate a more complex flow field. This enables bidirectional mixing of liquid materials, accelerates the dispersion of liquid materials, and makes the mixing of liquid materials more uniform. It also helps to improve the mixing efficiency and ensure the effect of pretreatment.
[0017] 2. Through the cooperation of the first and second conical teeth, the first conical tooth rotates under the action of the stirring shaft, which in turn drives the second conical tooth, thereby causing the second stirring rod to rotate and agitating the liquid material at the bottom of the mixing tank. This prevents the liquid material from settling at the bottom of the mixing tank, allowing for better dispersion and mixing of the liquid material at the bottom of the mixing tank, resulting in a better mixing effect. At the same time, the scraper can contact the inner wall of the mixing tank during the rotation of the stirring shaft, thereby scraping the inner wall of the mixing tank and preventing adhesion and accumulation on the inner wall of the mixing tank. Attached Figure Description
[0018] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a front view of the exploded structure of this utility model;
[0020] Figure 3 This is an exploded front view of the structure of the support column and toothed ring of this utility model;
[0021] Figure 4 This is a front sectional view of the scraper and the second rotating rod of this utility model;
[0022] Figure 5 This is an exploded side view sectional view of the scraper and the second conical tooth structure of this utility model.
[0023] In the diagram: 1. Base; 11. Mixing tank; 12. Inlet; 13. Outlet; 14. Stirring shaft; 15. First stirring rod; 16. First motor; 2. Support column; 21. Gear ring; 22. Fixing ring; 23. Rotating groove; 24. Fixing block; 25. First rotating rod; 26. Gear; 27. Second motor; 3. Scraper; 31. Connecting frame; 32. First conical tooth; 33. Second rotating rod; 34. Second conical tooth; 35. Second stirring rod. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1-5 One embodiment provided by this utility model:
[0026] The first motor 16 and the second motor 27 used in this application are products that can be purchased directly from the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.
[0027] A liquid material pretreatment mixing device for PA6 production includes a base 1, a mixing tank 11 on the top of the base 1, an inlet 12 fixedly connected to the top of the mixing tank 11, an outlet 13 fixedly connected to the bottom of the mixing tank 11, a stirring shaft 14 movably connected to the inner side of the mixing tank 11, a first stirring rod 15 fixedly connected to the surface of the stirring shaft 14, a first motor 16 fixedly mounted on the top of the mixing tank 11, and the output ends of the stirring shaft 14 and the first motor 16 fixedly connected. A mixing mechanism is provided on the surface of the mixing tank 11, and an auxiliary mechanism is provided inside the mixing tank 11. The mixing mechanism includes a toothed ring 21 and a toothed ring 22. A base 1 is fixedly connected to the surface of the mixing tank 11, and a gear 26 is provided on the top of the base 1. The auxiliary mechanism includes a scraper 3, which is fixedly connected to the surface of the first stirring rod 15. A second rotating rod 33 is movably provided on the inner side of the mixing tank 11, and a second stirring rod 35 is fixedly connected to the surface of the second rotating rod 33. Liquid materials can be added through the feed port 12. The operation of the first motor 16 drives the stirring shaft 14 to rotate, which causes the first stirring rod 15 to rotate accordingly. This allows the first stirring rod 15 to mix the liquid materials, thereby enabling the pretreatment of the liquid materials and facilitating the production of PA6.
[0028] Furthermore, the mixing mechanism also includes a support column 2, which is fixedly connected to the upper surface of the base 1, and a toothed ring 21 is movable inside the support column 2. A fixing ring 22 is fixedly connected to the surface of the toothed ring 21, and a rotating groove 23 is opened on the inner side of the support column 2. Through the setting of the fixing ring 22 and the opening of the rotating groove 23, the toothed ring 21 can rotate stably inside the support column 2, thereby ensuring the stability of the rotation of the mixing tank 11.
[0029] Furthermore, the end of the fixed ring 22 away from the toothed ring 21 is movable inside the rotating groove 23. A fixed block 24 is fixedly connected to the surface of the support column 2, and a first rotating rod 25 is movably connected to the inner side of the fixed block 24. Through the action of the first rotating rod 25, the first rotating rod 25 drives the gear 26 to rotate, so that the toothed ring 21 drives the mixing tank 11 to rotate under the action of the gear 26. In conjunction with the setting of the first stirring rod 15, the rotation direction of the mixing tank 11 is opposite to the rotation direction of the first stirring rod 15, which can realize bidirectional mixing of liquid materials, so that the mixing of liquid materials can be more uniform, which is beneficial to improving the quality of PA6 production.
[0030] Furthermore, a gear 26 is fixedly connected to the top of the first rotating rod 25, and a second motor 27 is fixedly installed at the bottom of the fixing block 24. The end of the first rotating rod 25 away from the gear 26 is fixedly connected to the output end of the second motor 27, and the gear 26 is movable inside the support column 2. Through the setting of the second motor 27, the operation of the second motor 27 can drive the first rotating rod 25 to rotate, and the rotation of the gear 26 can realize the transmission of the gear ring 21, so that the gear ring 21 can drive the mixing tank 11 to rotate during the mixing of liquid materials, thereby improving the mixing efficiency.
[0031] Furthermore, the auxiliary mechanism also includes a connecting frame 31, which is fixedly connected to the inner wall of the mixing tank 11. The stirring shaft 14 is movable inside the connecting frame 31. The surface of the stirring shaft 14 is fixedly connected with a first conical tooth 32, and the scraper 3 is arranged in two sets. The arrangement of the first conical tooth 32 allows the first conical tooth 32 to rotate when the stirring shaft 14 rotates. This enables the second conical tooth 34 to drive the second rotating rod 33 and the second stirring rod 35 to rotate accordingly. This achieves the effect of stirring the liquid material at the bottom of the mixing tank 11 by rotating the second stirring rod 35, thereby enhancing the mixing effect.
[0032] Furthermore, a second conical tooth 34 is fixedly connected to the surface of the second rotating rod 33. Both the first conical tooth 32 and the second conical tooth 34 are movable inside the connecting frame 31. Through the arrangement of the first conical tooth 32 and the second conical tooth 34, the first conical tooth 32 rotates under the action of the stirring shaft 14, which can realize the transmission of the second conical tooth 34. This facilitates the second rotating rod 33 to drive the second stirring rod 35 to rotate, thereby realizing the stirring of the liquid material by the second stirring rod 35.
[0033] Furthermore, the second rotating rod 33 is movably connected to the first conical tooth 32 in four groups, and the second stirring rod 35 is fixedly connected to the second rotating rod 33 in fifteen groups. Through the arrangement of the second rotating rod 33 and the second stirring rod 35, the second rotating rod 33 can rotate under the action of the first conical tooth 32 and the second conical tooth 34, and drive the second stirring rod 35 to rotate accordingly. This enables the second stirring rod 35 to stir the liquid material at the bottom of the mixing tank 11, which can prevent the liquid material from settling and facilitate better mixing of the liquid material.
[0034] Working principle: In use, the second motor 27 is electrically connected to an external power source. The operator starts the second motor 27 by pressing the switch. The second motor 27 drives the first rotating rod 25 to rotate. The gear 26 rotates under the action of the first rotating rod 25 and drives the gear ring 21, so that the gear ring 21 moves inside the support column 2, and the fixed ring 22 moves inside the rotating groove 23. Then, the mixing tank 11 rotates under the action of the gear ring 21, so that the rotation direction of the mixing tank 11 is opposite to the rotation direction of the first stirring rod 15, thereby realizing bidirectional mixing of liquid materials.
[0035] When the stirring shaft 14 and the first stirring rod 15 rotate under the action of the first motor 16, the scraper 3 rotates accordingly under the action of the first stirring rod 15 and rubs against the inner wall of the mixing tank 11, thereby scraping and cleaning the inner wall of the mixing tank 11. The first conical tooth 32 also rotates under the action of the stirring shaft 14 and can drive the second conical tooth 34. Then, the second rotating rod 33 drives the second stirring rod 35 to rotate under the action of the second conical tooth 34, so that the second stirring rod 35 can stir the liquid material at the bottom of the mixing tank 11, thereby preventing sedimentation and enhancing the mixing effect.
[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A liquid material pretreatment mixing device for PA6 production, comprising a base (1), a mixing tank (11) is provided on the top of the base (1), and a feed inlet (12) is fixedly connected to the top of the mixing tank (11), a discharge outlet (13) is fixedly connected to the bottom of the mixing tank (11), a stirring shaft (14) is movably connected to the inner side of the mixing tank (11), and a first stirring rod (15) is fixedly connected to the surface of the stirring shaft (14), and a first motor (16) is fixedly installed on the top of the mixing tank (11), and the output end of the stirring shaft (14) and the first motor (16) are fixedly connected; Its features are, The surface of the mixing tank (11) is provided with a mixing mechanism, and the inner side of the mixing tank (11) is provided with an auxiliary mechanism; The mixing mechanism includes a toothed ring (21), which is fixedly connected to the surface of the mixing tank (11), and a gear (26) is provided on the top of the base (1). The auxiliary mechanism includes a scraper (3), which is fixedly connected to the surface of the first stirring rod (15), and a second rotating rod (33) is movably arranged on the inner side of the mixing tank (11), and a second stirring rod (35) is fixedly connected to the surface of the second rotating rod (33).
2. The liquid material pretreatment mixing device for PA6 production according to claim 1, characterized in that: The mixing mechanism also includes a support column (2), which is fixedly connected to the upper surface of the base (1), and a toothed ring (21) is movable inside the support column (2). A fixing ring (22) is fixedly connected to the surface of the toothed ring (21), and a rotating groove (23) is provided inside the support column (2).
3. The liquid material pretreatment mixing device for PA6 production according to claim 2, characterized in that: The end of the fixed ring (22) away from the toothed ring (21) is movable inside the rotating groove (23). The surface of the support column (2) is fixedly connected to a fixed block (24), and the inner side of the fixed block (24) is movably connected to a first rotating rod (25).
4. The liquid material pretreatment mixing device for PA6 production according to claim 3, characterized in that: The top end of the first rotating rod (25) is fixedly connected to a gear (26), and the bottom end of the fixing block (24) is fixedly installed with a second motor (27). The end of the first rotating rod (25) away from the gear (26) is fixedly connected to the output end of the second motor (27), and the gear (26) moves inside the support column (2).
5. The liquid material pretreatment mixing device for PA6 production according to claim 1, characterized in that: The auxiliary mechanism also includes a connecting frame (31), which is fixedly connected to the inner wall of the mixing tank (11), and the stirring shaft (14) is movable inside the connecting frame (31). The surface of the stirring shaft (14) is fixedly connected with a first conical tooth (32), and the scraper (3) is arranged in two sets.
6. The liquid material pretreatment mixing device for PA6 production according to claim 5, characterized in that: The surface of the second rotating rod (33) is fixedly connected with a second conical tooth (34), and both the first conical tooth (32) and the second conical tooth (34) are movable inside the connecting frame (31).
7. A liquid material pretreatment mixing device for PA6 production according to claim 6, characterized in that: The second rotating rod (33) is movably connected to the first conical tooth (32) in four groups, and the second stirring rod (35) is fixedly connected to the second rotating rod (33) in fifteen groups.