Preheating device for polyethylene fiber preparation
By designing a preheating device for preparation of polyethylene fibers including preheating barrels, heating wires and motor-driven transmission systems, the problem of insufficient heating of existing devices is solved, a more efficient heating process is achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202323370688.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-11
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2033-12-11
AI Technical Summary
The existing preheating device for preparing polyethylene fibers cannot heat the polyethylene particles to a high temperature that matches the internal temperature of the extruder, resulting in the extruder requiring additional heating, reducing production efficiency.
A preheating device for preparing polyethylene fibers is designed, including a preheating barrel, a first heating wire, a second heating wire and a motor-driven transmission system. Through the synergistic action of the stirring and heating wire, the polyethylene particles are heated to a higher temperature, narrowing the gap with the internal temperature of the extruder.
It effectively reduces the time for the extruder to melt polyethylene particles, improves production efficiency, and achieves the compact and efficient use of the device through reasonable structural design.
Smart Images
Figure CN222574865U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of polyethylene fiber preparation, and more specifically, particularly relates to a preheating device for polyethylene fiber preparation. Background Art
[0002] Hot melt spinning is a commonly used method for synthesizing polyethylene fibers. First, the polyethylene raw material is heated to a molten state, and then the molten polyethylene is extruded into filaments through a spinning device and solidified in a cooler. Existing preheating devices for preparing polyethylene fibers can often only heat the polyethylene granular raw material to a certain temperature, which is far from the internal temperature of the extruder. It needs to be heated to a molten state by an extruder, which reduces the production efficiency to a certain extent. Therefore, a preheating device for preparing polyethylene fibers is proposed. Utility Model Content
[0003] In view of the shortcomings of the prior art, the utility model provides a preheating device for preparing polyethylene fibers, which can heat polyethylene particles to a higher temperature, reduce the difference between the temperature and the temperature inside the extruder, and reduce the time for the extruder to melt the polyethylene particles, so as to solve the problem that the existing preheating device for preparing polyethylene fibers proposed in the above background technology can often only heat the polyethylene particle raw materials to a certain temperature, which is greatly different from the internal temperature of the extruder, and needs to be heated to a molten state by the extruder, which reduces the production efficiency to a certain extent.
[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions: a preheating device for preparing polyethylene fiber, comprising a preheating barrel, a first heating wire is fixed to the outer side of the circumference of the preheating barrel, a top plate is fixed to the bottom surface of the preheating barrel, a motor is fixed to the top surface of the top plate, a transmission shaft is coaxially fixed to the output end of the motor, a gear is fixed to the outer side of the transmission shaft, a toothed disc is meshed and connected to the outer side of the gear, the bottom surface of the toothed disc is rotatably connected to the middle part of the top surface of the top plate, the rotating shaft of the toothed disc passes through the interior of the top plate and is coaxially fixed with a stirrer, and one end of the transmission shaft is coaxially fixed with a first transmission shaft. A driving wheel, a transmission belt is frictionally transmitted on the outer side of the first transmission wheel, the inner side of the transmission belt is meshed and connected with the second transmission wheel, a transmission rod is coaxially fixed on the inner side of the second transmission wheel, a mounting cylinder is fixed to the bottom surface of the preheating barrel, two second heating wires are fixed on the inner side of the mounting cylinder, two mounting plates are also fixed on the inner side of the mounting cylinder, a ventilation net is embedded on the outer side of the mounting plate, a plurality of baffles are fixed on the opposite sides of the two mounting plates, a plurality of strips are fixed on the top surface of the baffle, a rotating rod is rotatably connected between the two mounting plates, and an eccentric wheel is fixed on the outer side of the rotating rod.
[0005] As a preferred technical solution of the present utility model, the diameter of the toothed disc is greater than the diameter of the gear.
[0006] As a preferred technical solution of the present utility model, the diameter of the second transmission wheel is smaller than the diameter of the first transmission wheel.
[0007] As a preferred technical solution of the utility model, the baffles are in an inclined structure, and the relative baffles are staggered with each other.
[0008] As a preferred technical solution of the utility model, one end of the rotating rod passes through the interior of the mounting plate and the mounting cylinder and is coaxially fixedly connected with one end of the transmission rod.
[0009] As a preferred technical solution of the present utility model, the first heating wire is in a back-and-forth bending structure.
[0010] As a preferred technical solution of the present utility model, the second heating wire is in a back-and-forth bending structure.
[0011] The utility model provides a preheating device for preparing polyethylene fibers, which has the following beneficial effects:
[0012] 1. The preheating device for preparing polyethylene fibers can heat polyethylene particles to a higher temperature, reduce the temperature difference with the internal temperature of the extruder, reduce the time for the extruder to melt the polyethylene particles, and improve production efficiency.
[0013] 2. The preheating device for preparing polyethylene fiber has a reasonable and compact structure design and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a schematic diagram of the overall structure of the preheating device for preparing polyethylene fibers.
[0015] Figure 2 The utility model is a schematic diagram of the disassembled structure of the preheating device for preparing polyethylene fibers.
[0016] Figure 3 The utility model is a preheating device for preparing polyethylene fiber Figure 2 A is an enlarged schematic diagram.
[0017] Figure 4 The utility model is a preheating device for preparing polyethylene fiber Figure 3 The enlarged schematic diagram of point B in FIG.
[0018] In the figure: 1. preheating barrel; 2. top plate; 3. motor; 4. transmission shaft; 5. gear; 6. toothed disc; 7. agitator; 8. first transmission wheel; 9. transmission belt; 10. second transmission wheel; 11. transmission rod; 12. mounting cylinder; 13. mounting plate; 14. ventilation net; 15. baffle; 16. gear bar; 17. rotating rod; 18. eccentric wheel; 19. first heating wire; 20. second heating wire. DETAILED DESCRIPTION
[0019] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0020] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] See also Figures 1 to 4The utility model provides a technical solution: a preheating device for preparing polyethylene fiber, comprising a preheating barrel 1, a first heating wire 19 is fixed on the outer side of the circumference of the preheating barrel 1, a top plate 2 is fixed on the bottom surface of the preheating barrel 1, a motor 3 is fixed on the top surface of the top plate 2, a transmission shaft 4 is coaxially fixed to the output end of the motor 3, a gear 5 is fixed on the outer side of the transmission shaft 4, a toothed disc 6 is meshed and connected on the outer side of the gear 5, the bottom surface of the toothed disc 6 is rotatably connected to the middle part of the top surface of the top plate 2, the rotating shaft of the toothed disc 6 passes through the interior of the top plate 2 and is coaxially fixed with a stirrer 7, a first transmission wheel 8 is coaxially fixed to one end of the transmission shaft 4, a transmission belt 9 is frictionally driven on the outer side of the first transmission wheel 8, a second transmission wheel 10 is meshed and connected on the inner side of the transmission belt 9, a transmission rod 11 is coaxially fixed on the inner side of the second transmission wheel 10, and a mounting cylinder 12 is fixed to the bottom surface of the preheating barrel 1, Two second heating wires 20 are fixed to the inner side of the mounting tube 12, and two mounting plates 13 are also fixed to the inner side of the mounting tube 12. A ventilation net 14 is embedded on the outer side of the mounting plate 13. Multiple baffles 15 are fixed to the opposite sides of the two mounting plates 13, and multiple strips 16 are fixed to the top surface of the baffle 15. A rotating rod 17 is also rotatably connected between the two mounting plates 13, and an eccentric wheel 18 is fixed to the outer side of the rotating rod 17. The diameter of the toothed disc 6 is larger than the diameter of the gear 5, and the diameter of the second transmission wheel 10 is smaller than the diameter of the first transmission wheel 8. The baffles 15 are in an inclined structure, and the opposite baffles 15 are staggered. One end of the rotating rod 17 passes through the interior of the mounting plate 13 and the mounting tube 12 and is coaxially fixedly connected to one end of the transmission rod 11. The first heating wire 19 is in a back-and-forth bending structure, and the second heating wire 20 is in a back-and-forth bending structure.
[0023] Put the polyethylene particles into the preheating barrel 1, start the first heating wire 19, the second heating wire 20 and the motor 3, the motor 3 drives the transmission shaft 4 and the gear 5 to rotate, the gear 5 drives the toothed disc 6 to rotate, the toothed disc 6 drives the agitator 7 to rotate through the rotating shaft, so that the polyethylene particles can be evenly heated. When the preheating is completed, a certain amount of polyethylene particles are put into the installation cylinder 12 through the discharge mechanism of the discharge port of the preheating barrel 1. In this process, the polyethylene particles are blocked by the baffle 15, thereby slowing down the falling speed. At the same time, the gear bar 16 on the baffle 15 further slows down the falling speed, and the second heating wire 20 emits heat. , the polyethylene particles are heated to a higher temperature through the ventilation net 14 on the mounting plate 13. At the same time, the transmission shaft 4 drives the first transmission wheel 8 to rotate, and the first transmission wheel 8 drives the second transmission wheel 10 and the transmission rod 11 to rotate through the transmission belt 9, and the transmission rod 11 drives the rotating rod 17 and the eccentric wheel 18 to rotate, thereby generating vibration to prevent the polyethylene particles from softening when heated to a higher temperature and adhering to the baffle 15. Through the above process, the polyethylene particles can be heated to a higher temperature, reducing the gap between the temperature and the internal temperature of the extruder, reducing the time for the extruder to melt the polyethylene particles, and improving production efficiency.
[0024] Specific usage and function of this embodiment: The utility model puts polyethylene particles into the preheating barrel 1, starts the first heating wire 19, the second heating wire 20 and the motor 3, the motor 3 drives the transmission shaft 4 and the gear 5 to rotate, the gear 5 drives the toothed disc 6 to rotate, the toothed disc 6 drives the agitator 7 to rotate through the rotating shaft, so that the polyethylene particles can be evenly heated. After preheating is completed, a certain amount of polyethylene particles are put into the mounting cylinder 12 through the discharge mechanism of the discharge port of the preheating barrel 1. In this process, the polyethylene particles are blocked by the baffle 15, thereby slowing down the falling speed. At the same time, the gear bar 16 on the baffle 15 further slows down the falling speed. The second heating wire 20 emits heat and heats the polyethylene particles to a higher temperature through the ventilation net 14 on the mounting plate 13. At the same time, the transmission shaft 4 drives the first transmission wheel 8 to rotate, the first transmission wheel 8 drives the second transmission wheel 10 and the transmission rod 11 to rotate through the transmission belt 9, and the transmission rod 11 drives the rotating rod 17 and the eccentric wheel 18 to rotate, thereby generating vibration to prevent the polyethylene particles from softening when heated to a higher temperature and adhering to the baffle 15.
[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A preheating device for preparing polyethylene fibers, comprising a preheating barrel (1), characterized in that: A first heating wire (19) is fixed to the outer side of the circumference of the preheating barrel (1); a top plate (2) is fixed to the bottom surface of the preheating barrel (1); a motor (3) is fixed to the top surface of the top plate (2); a transmission shaft (4) is coaxially fixed to the output end of the motor (3); a gear (5) is fixed to the outer side of the transmission shaft (4); a toothed disc (6) is meshingly connected to the outer side of the gear (5); the bottom surface of the toothed disc (6) is rotatably connected to the middle part of the top surface of the top plate (2); the rotating shaft of the toothed disc (6) passes through the interior of the top plate (2) and is coaxially fixed to an agitator (7); a first transmission wheel (8) is coaxially fixed to one end of the transmission shaft (4); a transmission belt (9) is frictionally driven on the outer side of the first transmission wheel (8); the transmission belt The inner side of the preheating barrel (9) is meshedly connected with a second transmission wheel (10), and a transmission rod (11) is coaxially fixed on the inner side of the second transmission wheel (10). A mounting tube (12) is fixed on the bottom surface of the preheating barrel (1), and two second heating wires (20) are fixed on the inner side of the mounting tube (12). Two mounting plates (13) are also fixed on the inner side of the mounting tube (12), and a ventilation net (14) is embedded on the outer side of the mounting plates (13). A plurality of baffles (15) are fixed on the opposite side of the two mounting plates (13), and a plurality of baffle bars (16) are fixed on the top surface of the baffles (15). A rotating rod (17) is also rotatably connected between the two mounting plates (13), and an eccentric wheel (18) is fixed on the outer side of the rotating rod (17).
2. The preheating device for preparing polyethylene fiber according to claim 1, characterized in that: The diameter of the toothed disc (6) is greater than the diameter of the gear (5).
3. The preheating device for preparing polyethylene fiber according to claim 1, characterized in that: The diameter of the second transmission wheel (10) is smaller than the diameter of the first transmission wheel (8).
4. The preheating device for preparing polyethylene fiber according to claim 1, characterized in that: The baffles (15) are in an inclined structure, and the baffles (15) opposite to each other are staggered.
5. The preheating device for preparing polyethylene fiber according to claim 1, characterized in that: One end of the rotating rod (17) passes through the interior of the mounting plate (13) and the mounting cylinder (12) and is coaxially fixedly connected to one end of the transmission rod (11).
6. The preheating device for preparing polyethylene fiber according to claim 1, characterized in that: The first heating wire (19) is in a back-and-forth bending structure.
7. The preheating device for preparing polyethylene fiber according to claim 1, characterized in that: The second heating wire (20) is in a back-and-forth bending structure.