CN211645450U

CN211645450U - Industrial preparation nanofiber filtration membrane receiving arrangement and spinning equipment

Info

Publication number: CN211645450U
Application number: CN201922482213.3U
Authority: CN
Inventors: 张凌霄; 徐德钱
Original assignee: Defan New Material Technology Hangzhou Co ltd
Current assignee: Defan New Material Technology Hangzhou Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-09
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a nanofiber membrane apparatus for producing technical field especially relates to an industrial production nanofiber filtration membrane receiving arrangement and spinning equipment, including the steel band, first initiative toothed bar and second initiative toothed bar, be provided with two at least driven toothed bars between first initiative toothed bar and the second initiative toothed bar, between two adjacent driven toothed bars, between first initiative toothed bar and the driven toothed bar, still be provided with the spinning roller between second initiative toothed bar and the driven toothed bar, the top of first initiative toothed bar is provided with first steel band guide roller, the top of second initiative toothed bar is provided with second steel band guide roller. The utility model discloses an industrial preparation nanofiber filtration membrane receiving arrangement, there is needle spinning or needleless spinning technology all can use, and can increase and decrease the adjustment according to the needs of reality, is suitable for continuous production, can be suitable for large-scale production, is suitable for using widely.

Description

Industrial preparation nanofiber filtration membrane receiving arrangement and spinning equipment

Technical Field

The utility model relates to a nanofiber membrane apparatus for producing technical field especially relates to an industrial preparation nanofiber filtration membrane receiving arrangement and spinning equipment.

Background

The nanofiber refers to a linear material with a diameter of nanometer scale and a large length and a certain length-diameter ratio, and the diameter of the nanofiber is between 1nm and 100nm in a narrow sense, but the fiber with the fiber diameter of less than 1000nm is called the nanofiber in a broad sense. The nanofiber has extremely high specific surface area due to the extremely fine fiber diameter, so that the nanofiber has extremely high surface adsorption performance; on the other hand, webs, films or nonwovens made of very fine nanofibers have very small pore sizes and very high porosity (low air resistance) and electrostatic retentivity, and thus have been widely used in surface adsorption, filtration and barrier applications, and the like.

At present, there are many methods for manufacturing nanofibers, such as drawing method, template synthesis, self-assembly, microphase separation, electrostatic spinning, etc., among which the electrostatic spinning method is widely used due to its advantages of simple operation, wide application range, relatively high production efficiency, etc. In the actual production process, the electrostatic spinning technology is the only emerging spinning technology which can be used for producing the nanofibers in a large scale and is suitable for preparing various polymer nanofibers, the large-scale electrostatic spinning technology and related electrostatic spinning nanofiber materials are already industrially applied in developed countries, and China just starts to start in this respect and is in the initial stage of research.

The nanofiber prepared by electrostatic spinning has the excellent performances of fine fiber structure, large specific surface area, high porosity, good flexibility, adsorptivity, good filterability and the like, but due to the limitation of the production efficiency of a machine, most nanofiber filter materials cannot be independently formed into films or are difficult to be produced on a large scale. In the aspect of electrostatic spinning scale equipment technology, many enterprises and scientific research institutes pay attention to improvement of needle-free spinning and needle spinning, but the improvement is rarely related to a scale receiving device, but according to research of the inventor, the receiving device is also an important part in continuous production of electrostatic spinning film forming in an actual production process.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an industrial preparation nanofiber filtration membrane receiving arrangement and spinning device, there is needle spinning or needleless spinning technology all can use, and can increase and decrease the adjustment according to actual needs, be suitable for continuous production, can be suitable for large-scale production, be suitable for using widely.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

the utility model provides an industrial preparation nanofiber filtration membrane receiving arrangement, includes steel band, first initiative toothed roll and second initiative toothed roll, equal fixedly connected with first driving motor on first initiative toothed roll, the second initiative toothed roll, be provided with two at least driven toothed rolls between first initiative toothed roll and the second initiative toothed roll, adjacent two between the driven toothed roll, between first initiative toothed roll and the driven toothed roll, still be provided with the spinning roller between second initiative toothed roll and the driven toothed roll, the top of first initiative toothed roll is provided with first steel band guide roll, and the top of second initiative toothed roll is provided with second steel band guide roll, the steel band is in proper order around establishing in succession on first steel band guide roll, first initiative toothed roll, spinning roller, driven toothed roll, second initiative toothed roll, the second steel band guide roll, be close to on first initiative toothed roll, Carbon brushes are arranged at the positions of the second driving toothed roller and the driven toothed roller and are in contact with the edge of the steel belt.

Further, the surface of the steel strip is compounded with a conductive metal layer in a mirror electroplating mode.

Further, the metal of the conductive metal layer is any one of silver, chrome-nickel alloy and copper.

Further, the first driving toothed roller, the second driving toothed roller and the driven toothed roller are identical in structure and comprise rotating shafts, and driving gears are mounted at two ends of each rotating shaft. The design of this structure for steel band and first initiative toothed roll, the initiative toothed roll of second, driven toothed roll carry out the in-process that contacts, only drive the part of gear and steel band meshing and effectively contact, and the mid portion of steel band is unsettled, and the effectual spinning fibre of having protected the deposit on the steel band avoids it to suffer destruction.

Furthermore, the width of the steel belt is matched with the lengths of the first driving toothed roller, the second driving toothed roller, the driven toothed roller, the spinning roller, the first steel belt guide roller and the second steel belt guide roller, a plurality of transmission through holes are formed in two symmetrical sides of the steel belt and are uniformly arranged in the axial direction of the steel belt, and the distance between every two adjacent transmission through holes is the same as the circumferential distance between every two adjacent gear teeth on the driving gear.

Further, an unwinding roller is installed below the first steel belt guide roller, and a winding roller is installed below the second steel belt guide roller.

Further, the unwinding roller is in contact with the first steel belt guide roller, the winding roller is in contact with the second steel belt guide roller, and extension springs are arranged between the unwinding roller and the first steel belt guide roller and between the winding roller and the second steel belt guide roller. And the first steel belt guide roller and the second steel belt guide roller are used for respectively carrying out friction transmission on the unwinding roller and the winding roller so as to realize synchronous unwinding or winding.

The utility model discloses a first purpose discloses a preparation nanofiber filtration membrane spinning equipment, including above-mentioned receiving arrangement, still include a plurality of syringe needle spinning systems, syringe needle spinning system's quantity and the quantity phase-match of spinning roller, syringe needle spinning system and spinning roller interval installation.

Further, syringe needle spinning system includes drive assembly and the spinning part that the transmission is connected, drive assembly includes second driving motor and transmission lead screw, transmission lead screw and second driving motor's output shaft fixed connection, the spinning part includes the base to and two sets of syringe needle subassemblies of fixed mounting on the base, the base spiro union is on transmission lead screw, still be connected with high voltage power supply on the syringe needle subassembly. And the second driving motor is utilized to drive the transmission screw rod to rotate, so that the spinning part can perform reciprocating motion in the horizontal direction.

Further, there is a slide rail at the position fixed mounting that corresponds in the syringe needle subassembly on the base, the slide rail is along the radial extension of base, the syringe needle subassembly includes the support to and feed bin and the spinning syringe needle of fixed mounting on the support, the feed bin is linked together with the spinning syringe needle, support slidable mounting is on the slide rail. Through the setting of slide rail, in the in-process of production, can adjust the position of syringe needle subassembly for the steel band to reach the purpose of adjustment spinning distance.

When the spinning device of the utility model is adopted to carry out spinning operation, firstly, according to the material and the demand of spinning, the spinning needle head is adjusted, thereby the distance of spinning is adjusted, the second driving motor is opened, the high-voltage power supply is opened, the direct current high voltage is adjusted to be set, the first driving motor is opened, the first driving toothed roller and the second driving toothed roller are driven to rotate, thereby the steel belt is driven to move, at the moment, under the action of the carbon brush, the steel belt is effectively grounded, a stable high-voltage electrostatic field is formed between the steel belt and the high-voltage power supply, under the action of the steel belt, the first steel belt guide roller starts to rotate, simultaneously, the unwinding roller is driven to synchronously rotate, the base material or the guide material on the unwinding roller starts to run to the position of the spinning needle head along with the steel belt, spinning starts to run along with the steel belt, until the steel belt runs to the position of the second, and the second steel belt guide roller drives the winding roller to wind the spun material, so that the whole spinning process is completed.

The utility model has the advantages that:

1. the utility model discloses an industrial preparation nanofiber filtration membrane receiving arrangement, whether have needle spinning or needleless spinning all can use, and can increase and decrease driven drive gear, spinning roller according to the needs of reality, be suitable for continuous production, can be suitable for large-scale production, be suitable for and use widely.

2. The utility model discloses an industrial preparation nanofiber filtration membrane spinning equipment is suitable for the electrostatic spinning production of multiple nanofiber membrane, no matter be single layer membrane or multilayer complex film, carries out corresponding adjustment according to spinning process parameter, can satisfy corresponding production requirement, uses in a flexible way, accommodation is wide.

Drawings

FIG. 1 is a schematic structural diagram of a filter membrane receiving device for industrial production of nanofibers according to the present invention;

FIG. 2 is a schematic structural diagram of a spinning apparatus for industrially preparing nanofiber filtration membranes of the present invention;

FIG. 3 is a schematic structural view of the needle spinning system of the present invention;

FIG. 4 is a schematic structural view of the steel belt and the driven toothed roller of the present invention;

FIG. 5 is a schematic structural view of a first steel belt guide roller and a second steel belt guide roller in the present invention;

the spinning machine comprises a supporting base 1, a steel belt 2, a transmission through hole 21, a first driving toothed roller 3, a second driving toothed roller 4, a driven toothed roller 5, a rotating shaft 51, a driving gear 52, a first support 6, a first driving motor 7, an installation plate 8, a spinning roller 9, a second support 10, a hanger 11, a first steel belt guide roller 12, a second steel belt guide roller 13, an unwinding roller 14, a winding roller 15, an installation frame 16, a carbon brush 17, a needle spinning system 18, a second driving motor 181, a base 182, a support 183, a feeding bin 184 and a spinning needle 185.

Detailed Description

The invention will be described in detail with reference to the following drawings and specific embodiments:

example one

As shown in fig. 1, 4 and 5, the receiving device for industrially preparing nanofiber filtration membranes of the present invention comprises a steel belt 2, a first active toothed roller 3 and a second active toothed roller 4, at least two driven toothed rollers 5 are disposed between the first active toothed roller 3 and the second active toothed roller 4, two driven toothed rollers 5 are selected for illustration in this embodiment, a first support 6 is disposed between the first active toothed roller 3, the second active toothed roller 4 and the driven toothed rollers 5 and the supporting base 1, the bottom end of the first support 6 is fixedly mounted on the supporting base 1, and the specific mounting manner of the first support 6 and the supporting base 1 is not limited in this embodiment, the first support 6 may be fixed to the support base 1 by bolts or by welding. First initiative fluted roller 3, the initiative fluted roller 4 of second and driven fluted roller 5 are installed on the first support 6 that corresponds, it is concrete, first initiative fluted roller 3, the initiative fluted roller 4 of second is the same with the structure of driven fluted roller 5, all include axis of rotation 51, drive gear 52 is all installed at axis of rotation 51's both ends, a plurality of transmission through-holes 21 have been seted up to the relative both sides of steel band 2, a plurality of transmission through-holes 21 set up along the axial align to grid of steel band 2, and the distance between two adjacent transmission through-holes 21 is the same with the circumferential distance between two adjacent teeth of a cogwheel on the drive gear 52, drive gear 52 meshes in transmission through-hole 21, it can drive steel band 2 removal to drive gear 52 rotation. The rotating shafts 51 of the first driving toothed roller 3 and the second driving toothed roller 4 are fixedly connected with first driving motors 7, the rotating shafts 51 of the first driving toothed roller 3 and the second driving toothed roller 4 are respectively connected with the rotating shafts of the corresponding first driving motors 7, and the two first driving motors 7 are the same in steering direction. When the steel strip conveying device is used, the first driving motor 7 is started to drive the first driving toothed roller 3 and the second driving toothed roller 4 to rotate, and the gear teeth on the driving gear 52 are meshed in the transmission through hole 21, so that the first driving toothed roller 3 and the second driving toothed roller 4 can drive the steel strip 2 to move.

The installation plate 8 is fixedly arranged above the first driving toothed roller 3, the second driving toothed roller 4 and the driven toothed roller 5, the spinning rollers 9 are further arranged between the two adjacent driven toothed rollers 5, the first driving toothed roller 3 and the driven toothed roller 5, the second driving toothed roller 4 and the driven toothed roller 5, the second support 10 is installed between the spinning rollers 9 and the installation plate 8, the bottom end of the second support 10 is fixedly installed on the installation plate 8, the specific installation mode of the second support 10 and the installation plate 8 is not limited in the embodiment, the second support 10 can be fixed through bolts or welded, the second support 10 can be fixedly installed on the installation plate 8, and the spinning rollers 9 are fixedly installed on the corresponding second supports 10. A hanging bracket 11 is fixedly arranged above the first driving toothed roller 3, a first steel belt guide roller 12 and an unwinding roller 14 are arranged on the hanging bracket 11, the unwinding roller 14 is positioned below the first steel belt guide roller 12, and the surfaces of the first steel belt guide roller 12 and the unwinding roller 14 are in contact and the axes of the first steel belt guide roller 12 and the unwinding roller 14 are parallel. A hanging bracket 11 is also fixedly arranged above the second driving toothed roller 4, a second steel belt guide roller 13 and a winding roller 15 are arranged on the hanging bracket 11 above the second driving toothed roller 4, the winding roller 15 is positioned below the second steel belt guide roller 13, and the surfaces of the second steel belt guide roller 13 and the winding roller 15 are in contact and the axial leads are parallel. Extension springs are respectively arranged between the unreeling roller 14 and the first steel belt guide roller 12 and between the reeling roller 15 and the second steel belt guide roller 13, so that the first steel belt guide roller 12 and the unreeling roller 14 and the second steel belt and the reeling roller 15 can be always kept in contact with each other, and the first steel belt guide roller 12 and the second steel belt guide roller 13 are used for respectively carrying out friction transmission on the unreeling roller 14 and the reeling roller 15, so that synchronous unreeling or reeling is realized; the width and the first initiative fluted roller 3 of steel band 2, the initiative fluted roller 4 of second, driven fluted roller 5, spinning roller 9, first steel band guide roll 12, the length homogeneous phase of second steel band guide roll 13 matches, steel band 2 is in proper order around establishing at first steel band guide roll 12 in succession, first initiative fluted roller 3, spinning roller 9, driven fluted roller 5, the initiative fluted roller 4 of second, 13 on the steel band guide roll of second, and all be provided with in the position that steel band 2 corresponds on the mounting panel 8 and pass the hole, the width size who passes the hole is greater than the thickness size of steel band 2, length size is greater than the width size of steel band 2, make things convenient for steel band 2 to pass through, and can not influence the spinning fibre of deposit on steel band 2. The installation rack 16 is installed at a position close to the first driving toothed roller 3, the second driving toothed roller 4 and the driven toothed roller 5, one end of the installation rack 16 is fixedly installed on the supporting base 1, the other end of the installation rack is fixedly installed with a carbon brush 17, the carbon brush 17 is in contact with the corresponding first driving toothed roller 3, the second driving toothed roller 4 and the edge of the steel belt 2 on the driven toothed roller 5, so that the steel belt 2 can be effectively grounded, and therefore the steel belt 2 and the spinning needle head system form a relatively strong and stable electric field when electrostatic spinning is carried out, in addition, a copper spring can be connected between the carbon brush 17 and the installation rack 16, and the elastic capacity of the copper spring is utilized, so that the position of the carbon brush 17 can be adjusted within a certain range, and the running stability of the device is ensured to a certain degree, in the embodiment, the installation rack 16 and the supporting base 1, the installation rack 16 and the copper spring, The specific installation mode between the copper spring and the carbon brush 17 is limited, and welding and the like can be adopted as long as the installation frame 16 can be fixedly installed on the support base 1, the copper spring is fixedly installed on the installation frame 16, and the carbon brush is fixedly installed on the copper spring and can conduct electricity.

Example two

As shown in fig. 2 and fig. 3, the spinning device for industrially preparing nanofiber filtration membranes of the present invention comprises a receiving device and a plurality of needle spinning systems 18 as described in the first embodiment, the number of the needle spinning systems 18 matches with the number of the spinning rollers 9, and the needle spinning systems 18 are installed at intervals with the spinning rollers 9. The spinning device of the embodiment is matched with the receiving device of the first embodiment, 4 groups of needle spinning systems 18 are provided, each needle spinning system 18 comprises a driving part and a spinning part which are in transmission connection, each driving part comprises a second driving motor 181 and a transmission lead screw (not shown in the figure), each transmission lead screw is fixedly connected with an output shaft of the second driving motor 181, each spinning part comprises a base 182 and two groups of needle assemblies which are fixedly installed on the base 182, each base 182 is made of an effectively insulated epoxy resin plate or an electric wood plate, each base 182 is in threaded connection with the transmission lead screw, the transmission lead screws are driven to rotate through the second driving motors 181, so that the spinning parts can reciprocate on the transmission lead screws, each needle assembly is also connected with a high-voltage power supply (not shown in the figure) and used for forming an electrostatic field with the receiving device, and sliding rails are fixedly installed on the base 182 at positions corresponding to the needle assemblies, the slide rail extends in a radial direction of the base 182. Specifically, the needle assembly comprises a frame 183, the frame, a supply bin 184 and a spinning needle 185 which are fixedly arranged on the frame 183, the supply bin 184 is communicated with the spinning needle 185, and the frame 183 is slidably arranged on a sliding rail. Through the setting of slide rail, in the in-process of production, can adjust the position of syringe needle subassembly for steel band 2 to reach the purpose of adjustment spinning distance, can set up two sets of feed bins 184 and spinning syringe needle 185 simultaneously on a support 183 in addition, can improve spinning efficiency to this to a certain extent.

The utility model discloses a spinning device's application method does:

when the spinning device of the utility model is used for spinning operation, firstly, according to the material and the demand of spinning, the spinning needle 185 is adjusted, thereby the distance of spinning is adjusted, the second driving motor 181 is opened, the high voltage power supply is opened, the set direct current high voltage is adjusted, the first driving motor 7 is opened, the first driving toothed roller 3 and the second driving toothed roller 4 are driven to rotate, thereby the steel belt 2 is driven to move, at the moment, under the action of the carbon brush 17, the steel belt 2 is effectively grounded, a stable high voltage electrostatic field is formed between the steel belt 2 and the high voltage power supply, under the action of the steel belt 2, the first steel belt guide roller 12 starts to rotate, meanwhile, the unreeling roller 14 is driven to synchronously rotate, the base material or the guide material on the unreeling roller 14 starts to move to the position of the spinning needle 185 along with the steel belt 2, the spinning starts to move along with the steel belt 2, until the steel belt 2 moves to the position of the, and (3) penetrating the spun material into a winding roller 15, and driving the winding roller 15 to wind the spun material by a second steel belt guide roller 13 to finish the whole spinning process.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. The receiving device for the filter membrane for industrially preparing the nano fibers is characterized by comprising a steel belt, a first driving toothed roller and a second driving toothed roller, wherein the first driving toothed roller and the second driving toothed roller are fixedly connected with a first driving motor, at least two driven toothed rollers are arranged between the first driving toothed roller and the second driving toothed roller, spinning rollers are further arranged between the first driving toothed roller and the second driving toothed roller, a first steel belt guide roller is arranged above the first driving toothed roller, a second steel belt guide roller is arranged above the second driving toothed roller, the steel belt is sequentially and continuously wound on the first steel belt guide roller, the first driving toothed roller, the spinning rollers, the driven toothed rollers, the second driving toothed roller and the second steel belt guide roller, and carbon brushes are arranged at positions close to the first driving toothed roller, the second driving toothed roller and the driven toothed roller, and the carbon brushes are in contact with the edge of the steel belt.

2. The receiving device for the industrial production of the nanofiber filtering membrane as claimed in claim 1, wherein the surface of the steel belt is compounded with the conductive metal layer by means of mirror plating.

3. The receiving device for the industrial production nanofiber filtering membrane as claimed in claim 2, wherein the metal of the conductive metal layer is any one of silver, chrome-nickel alloy and copper.

4. The receiving device for the industrial production nanofiber filtering membrane as claimed in claim 1, wherein the first driving toothed roller, the second driving toothed roller and the driven toothed roller have the same structure and comprise rotating shafts, and driving gears are mounted at two ends of each rotating shaft.

5. The receiving device for the filter membrane used for the industrial production of the nano fibers according to claim 4, wherein the width of the steel belt is matched with the lengths of the first driving toothed roller, the second driving toothed roller, the driven toothed roller, the spinning roller, the first steel belt guide roller and the second steel belt guide roller, a plurality of transmission through holes are formed in symmetrical two sides of the steel belt, the transmission through holes are uniformly arranged along the axial direction of the steel belt, and the distance between two adjacent transmission through holes is the same as the circumferential distance between two adjacent gear teeth on the driving gear.

6. The industrial production nanofiber filtering membrane receiving device according to claim 3, wherein an unwinding roller is installed below the first steel belt guide roller, and a winding roller is installed below the second steel belt guide roller.

7. The receiving device for the industrial production nanofiber filtering membrane according to claim 6, wherein the unwinding roller is in contact with the first steel belt guide roller and the winding roller is in contact with the second steel belt guide roller, and the tension springs are respectively installed between the unwinding roller and the first steel belt guide roller and between the winding roller and the second steel belt guide roller.

8. An industrial production nanofiber filtering membrane spinning device, which is characterized by comprising the receiving device as claimed in any one of claims 1 to 7, and further comprising a plurality of needle spinning systems, wherein the number of the needle spinning systems is matched with that of the spinning rollers, and the needle spinning systems and the spinning rollers are arranged at intervals.

9. The spinning device for industrial production of nanofiber filtering membranes according to claim 8, wherein the needle spinning system comprises a driving part and a spinning part which are in transmission connection, the driving part comprises a second driving motor and a transmission screw rod, the transmission screw rod is fixedly connected with an output shaft of the second driving motor, the spinning part comprises a base and two groups of needle assemblies fixedly installed on the base, the base is in threaded connection with the transmission screw rod, and the needle assemblies are further connected with a high-voltage power supply.

10. The spinning apparatus for industrial production of nanofiber filtering membrane according to claim 9, wherein a slide rail is fixedly installed on the base at a position corresponding to the needle assembly, the slide rail extends along a radial direction of the base, the needle assembly comprises a frame, and a supply bin and a spinning needle which are fixedly installed on the frame, the supply bin is communicated with the spinning needle, and the frame is slidably installed on the slide rail.