Eccentric shaft spinning device capable of precisely measuring and controlling flow
The eccentric shaft spinning device with a composite nozzle and adjustable mechanism addresses the lack of precision in flow measurement and control, enabling high-precision flow adjustment and production of eccentric fibers, improving efficiency and quality.
Patent Information
- Application Number
- CN202421098020.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing electrospinning devices lack precise flow measurement and control capabilities, relying on indirect methods that compromise accuracy and fail to meet diverse spinning needs.
An eccentric shaft spinning device with a composite nozzle and adjustable eccentric mechanism, incorporating mass flow meters and electromagnetic regulating valves, enables precise flow measurement and control through dynamic adjustment.
Facilitates high-precision flow control and production of fibers with eccentric structures, enhancing production efficiency and quality without equipment changes.
Smart Images
Figure CN222274798U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrostatic spinning, in particular to an eccentric shaft spinning device capable of precisely measuring and controlling flow. Background Art
[0002] Electrospinning is a technology for preparing micro-nano fibers, which has many advantages such as three-dimensional controllability and high porosity. It has broad application prospects in biomedicine, environmental filtration, micro / optoelectronics and energy storage packaging.
[0003] The main difference between coaxial electrospinning and traditional electrospinning technology is that the single spinning nozzle is replaced with a coaxial composite spinning nozzle of different diameters.
[0004] The inner nozzle is sleeved inside the outer nozzle and maintained coaxially, and a certain gap is left between the two spinnerets to ensure that the outer layer material can flow out smoothly and merge with the inner layer material, and under the action of the high-voltage electric field force, it is stretched into coaxial composite nanofibers.
[0005] Coaxial electrospinning technology can produce nanofibers with special structures, such as adding functional substances to modify the fibers during the spinning process, combining shell-core structure nanofibers to form functional composite nanofibers, and removing the core layer structure to form hollow nanofibers.
[0006] In addition, nanofibers with eccentric structures have many application prospects. The preparation of eccentric composite fibers can give the fibers a three-dimensional self-curling structure, thereby obtaining excellent elasticity, fluffiness and flexibility, and can also exhibit good deformation recovery ability; the preparation of fibers with a C-type groove structure increases the porosity of the fiber membrane, and the fiber membrane shows considerable competitiveness in enhancing permeation flux and long-term stability.
[0007] With the improvement of automation level, many production processes have put forward new requirements for flow measurement.
[0008] In the process of preparing nanofibers by electrospinning, accurate measurement and control of flow is crucial to ensure the quality and performance of the fibers. The mass flow meter can directly measure the mass flow of the medium passing through the flow meter. It has the characteristics of being applicable to a variety of media, high measurement accuracy, and no straight pipe section requirements. In addition, an electromagnetic regulating valve can be added, so that the mass flow control itself constitutes a closed-loop system for controlling the mass flow of the fluid.
[0009] Most of the existing spinning devices have single functions and cannot meet the diverse spinning needs.
[0010] In traditional measurement methods, the quality of the fluid can only be obtained indirectly by measuring parameters such as the temperature, pressure and density of the fluid, and then using correction, conversion and compensation methods.
[0011] This measurement method has too many intermediate links, and the accuracy of the measurement is difficult to guarantee and improve. Utility Model Content
[0012] The utility model provides an eccentric shaft spinning device capable of precisely measuring and controlling flow rate, and can prepare fibers with special structures by fine-tuning the position of an external nozzle through the eccentric device to meet the application of different scenarios.
[0013] Through the coordinated action of the monitoring mechanism and the control mechanism, high-precision dynamic adjustment and control of the material flow is achieved.
[0014] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0015] An eccentric shaft spinning device for precisely measuring and controlling flow rate comprises a composite spinning nozzle, wherein the composite spinning nozzle is provided with an adjustable eccentric device, and the eccentric device can fine-tune the lateral movement of an outer nozzle, and an inner nozzle and an outer nozzle of the composite spinning nozzle are respectively connected to an inner layer material flow channel and an outer layer material flow channel, and an inner layer material feed port is provided at the upper end of the inner layer material flow channel, and an electromagnetic regulating valve, a mass flow meter and a one-way valve are sequentially provided at the inner layer material feed port, and the outer layer material flow channel comprises an outer layer material feed port.
[0016] Furthermore, the inner nozzle is fixed relative to the device, and the adjustable eccentric device includes a push screw and a spring, and the outer nozzle is moved laterally by twisting the push screw.
[0017] Furthermore, the inner layer material feed port is connected to an electromagnetic regulating valve.
[0018] Furthermore, the electromagnetic regulating valve is connected to a mass flow meter.
[0019] Furthermore, the mass flow meter is connected to a one-way valve.
[0020] Furthermore, the outer layer material feed port is connected to an electromagnetic regulating valve.
[0021] Furthermore, the electromagnetic regulating valve is connected to a mass flow meter.
[0022] Furthermore, the mass flow meter is connected to a one-way valve.
[0023] Furthermore, it also includes a high-voltage power supply and a collecting roller device.
[0024] Compared with the prior art, the beneficial effects of the utility model are:
[0025] (1) The utility model has a simple structure and is easy to operate. It can prepare coaxial fibers. According to the needs, the position of the external nozzle can be fine-tuned to prepare fibers with eccentric structures to meet the application of different scenarios. It can be completed without changing the equipment, thereby improving production efficiency.
[0026] (2) Use a mass flow meter to measure the flow rate, and an electromagnetic regulating valve to control the flow rate. Through the synergistic effect of the monitoring module and the control module, dynamic adjustment and control of the material flow is achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The present invention can be further understood from the following description of the accompanying drawings, in which the components are not necessarily drawn to scale, but emphasis is placed on illustrating the principles of the embodiments.
[0028] Figure 1 The utility model discloses a structural schematic diagram of an eccentric shaft spinning device capable of precisely measuring and controlling flow.
[0029] Description of reference numerals:
[0030] 1- one-way valve; 2- mass flow meter; 3- electromagnetic regulating valve; 4- inner layer material feed port; 5- outer layer material feed port; 6- electromagnetic regulating valve; 7- mass flow meter; 8- one-way valve; 9- spring; 10- push screw; 11- outer layer material flow channel; 12- inner layer material flow channel; 13- spinning nozzle; 14- high voltage power supply; 15- collecting roller device. DETAILED DESCRIPTION
[0031] The present invention will be described in detail below in conjunction with the drawings in this embodiment, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.
[0032] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 a limitation on the present utility model. In addition, the terms "first", "second", etc., etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.
[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect" and the like should be understood in a broad sense, and the technical personnel in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0034] As shown in the figure, the utility model provides an eccentric shaft spinning device with precise flow measurement and control. The device is connected to the feeding system through a one-way valve 1. A mass flowmeter 2 and an electromagnetic regulating valve 3 are installed between the inner layer material feed port 4 and the one-way valve 1 to measure and control the flow of the inner layer material flowing into the device. The device is connected to the feeding system through a one-way valve 8. A mass flowmeter 7 and an electromagnetic regulating valve 6 are installed between the outer layer material feed port 5 and the feeding system to measure and control the flow of the outer layer material flowing into the device. The outer layer material flow channel 11 provides the shell material, and the inner layer material flow channel 12 provides the core material, which merges with the shell material at the spinning nozzle 13 to form a composite jet, and finally deposits on the collecting roller device 15. The adjustable eccentric device is used to fine-tune the position of the outer nozzle. When it is necessary to prepare a fiber with an eccentric structure, the spring 9 is compressed or stretched by twisting the push screw 10. At this time, the outer nozzle can move horizontally to the left or right, thereby preparing a composite fiber with an eccentric structure. The high-voltage power supply 14 is connected to the collecting roller device 15. The collecting roller device 15 can move in the XY direction on the platform, and the roller can rotate forward or reverse, and the rotation speed can be adjusted to obtain the required fibers.
[0035] The above is only a preferred specific implementation of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, which should be covered by the protection scope of this embodiment.
Claims
1. An eccentric shaft spinning device with precise flow measurement and control, characterized in that: It includes a composite spinning nozzle, which is provided with an adjustable eccentric device, and the eccentric device can fine-tune the lateral movement of the outer nozzle. The inner nozzle and the outer nozzle of the composite spinning nozzle are respectively connected to the inner layer material flow channel and the outer layer material flow channel. The upper end of the inner layer material flow channel is provided with an inner layer material feed port, and the inner layer material feed port is sequentially provided with an electromagnetic regulating valve, a mass flow meter and a one-way valve, and the outer layer material flow channel includes an outer layer material feed port.
2. The eccentric shaft spinning device with precise flow measurement and control according to claim 1 is characterized in that: The inner nozzle is fixed relative to the device, and the adjustable eccentric device includes a push screw and a spring. The outer nozzle is moved laterally by twisting the push screw.
3. The eccentric shaft spinning device with precise flow measurement and control according to claim 1, characterized in that: The inner layer material feed port is connected to the electromagnetic regulating valve.
4. The eccentric shaft spinning device with precise flow measurement and control according to claim 3 is characterized in that: The electromagnetic regulating valve is connected to the mass flow meter.
5. The eccentric shaft spinning device with precise flow measurement and control according to claim 4, characterized in that: The mass flow meter is connected to the one-way valve.
6. The eccentric shaft spinning device with precise flow measurement and control according to claim 1, characterized in that: The outer layer material feed port is connected to the electromagnetic regulating valve.
7. The eccentric shaft spinning device with precise flow measurement and control according to claim 6, characterized in that: The electromagnetic regulating valve is connected to the mass flow meter.
8. The eccentric shaft spinning device with precise flow measurement and control according to claim 7, characterized in that: The mass flow meter is connected to the one-way valve.
9. The eccentric shaft spinning device with precise flow measurement and control according to claim 1, characterized in that: Also included is a high voltage power supply and a collection drum assembly.