CN213624492U

CN213624492U - Matrix type needle head device for electrostatic spinning

Info

Publication number: CN213624492U
Application number: CN202022408878.2U
Authority: CN
Inventors: 杨永生; 琚河同; 李小要; 徐兆严
Original assignee: Henan Manborui New Material Technology Co ltd
Current assignee: Henan Manborui New Material Technology Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-07-06
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses a matrix type needle head device for electrostatic spinning, which comprises a base made of conductive metal, wherein one end of the base is provided with more than one feed inlet, the base is internally provided with feed channels communicated with each feed inlet in a one-to-one correspondence manner along the length direction of the base, the top of the base is provided with more than two discharge ports arranged at equal intervals along the length direction of each feed channel, the discharge ports are communicated with the corresponding feed channels, each discharge port is provided with a needle head, and the feed inlets are connected with a micro-injection pump through feed pipelines; a through groove is formed in one side face of the base along the length direction of the base, a conductive bolt is installed on the bottom face of the through groove, and the conductive bolt located at one end of the through groove is correspondingly connected with the high-voltage electrostatic generator through an electric wire. The utility model discloses a set up the syringe needle that the multiunit is the matrix and arranges on the base, can realize that the multiunit syringe needle spouts the silk simultaneously, can improve the efficiency and the homogeneity that spout the silk.

Description

Matrix type needle head device for electrostatic spinning

Technical Field

The utility model relates to an electrostatic spinning equipment technical field, concretely relates to matrix syringe needle device for electrostatic spinning.

Background

Electrospinning is a special fiber manufacturing process, which is a technique that subjects a polymer solution or melt to jet spinning in a strong electric field. Under the action of the electric field, the liquid drop at the spray head changes from a spherical shape to a conical shape, and fiber filaments are obtained by extending from the tip of the conical shape, so that polymer filaments with nanometer-scale diameters can be produced. The existing electrostatic spinning equipment usually only uses one spray head when spinning, the caliber of the used spray head is larger, although the spinning amount of the spray head is larger, the spinning efficiency is not high, and the phenomenon of nonuniform spinning is easily caused.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a matrix syringe needle device for electrostatic spinning can effectively improve and spout a line efficiency, and guarantees to spout the line evenly.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a matrix type needle head device for electrostatic spinning is designed, and comprises a base made of conductive metal, wherein one end of the base is provided with more than one feed inlet, the inside of the base is provided with feed channels communicated with the feed inlets in a one-to-one correspondence manner along the length direction of the base, the top of the base is provided with more than two discharge ports arranged at equal intervals along the length direction of each feed channel, the discharge ports are communicated with the corresponding feed channels, each discharge port is provided with a spinneret needle head, and the feed inlets are connected with a micro-injection pump through feed pipelines;

a side face of the base is provided with a through groove along the length direction, connecting holes which are arranged at equal intervals are formed in the bottom face of the through groove, a conductive bolt is installed in each connecting hole, the conductive bolt located at one end of the conductive bolt is correspondingly connected with the high-voltage electrostatic generator through an electric wire, and adjacent conductive bolts are electrically connected through a wire.

In above-mentioned technical scheme, through the base that sets up cuboid or square shape, set up the multiunit on the base and be the spinneret needle head that the matrix was arranged, the raw materials passes through feed line, feed inlet, feedstock channel and flows to syringe needle department, and electrically conductive material's base corresponds with high-voltage electrostatic generator and is connected for the raw materials passes through syringe needle department and forms the fibre filament, and the filament is sprayed on substrate (like the non-woven fabrics) surface, realizes the nanofiber membrane that electrostatic spinning formed from this. A plurality of syringe needles can spout the silk simultaneously, can effectively improve and spout the homogeneity that the silk efficiency, assurance were spouted.

Preferably, the feeding pipeline comprises a main pipe connected with the micro-injection pump through a material pipe and branch pipes connected between each feeding hole and the main pipe, and each branch pipe is provided with a rotary switch. Through setting up and being responsible for and the branch pipe, set up rotary switch on the branch pipe, can control whether every feedstock channel feeds in, whether the spinning is spouted to every group syringe needle of selective as required control.

Preferably, an inner counter bore is arranged at the discharge port, internal threads are arranged on the side wall of the inner counter bore, and the lower part of the spinning needle head is in threaded connection with the inner counter bore through a needle head seat.

Preferably, a sealing gasket is arranged at the position where the inner counter bore is contacted with the bottom surface of the needle head seat.

Preferably, the micro-injection pump is communicated to a charging basket containing the electrostatic spinning raw materials through a material pipe.

Preferably, the inner diameter of the spinneret needle is 0.1-0.5 mm.

The beneficial effects of the utility model reside in that:

the utility model discloses a set up the syringe needle that the matrix was arranged of multiunit on the base, can realize that a plurality of syringe needles spout the silk simultaneously, can guarantee the homogeneity that spouts the silk, solved current electrostatic spinning and used solitary shower nozzle to cause easily to spout the inhomogeneous problem of silk; the utility model discloses an inner diameter that spouts the silk syringe needle can be less than the independent shower nozzle that current electrostatic spinning used far away, also can further reduce fibrous fineness, increase fibrous density when guaranteeing to spout the silk homogeneity, improves the product quality of nanofiber membrane.

The utility model relates to a modular syringe needle device, when using, can all syringe needles spout the silk simultaneously, also can be through opening and closing of the every group syringe needle of the knob control on the branch pipe, select which several groups of syringe needles of opening as required, and then the thickness and the density of adjustment nanofiber membrane.

Drawings

Figure 1 is a schematic structural diagram of the present invention,

fig. 2 is a side view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

reference numbers in the figures: the spinning machine comprises a base 1, a feeding hole 2, a material pipe 3, a feeding channel 4, a discharging hole 5, a spinning needle 6, a needle seat 7, a through groove 8, a conductive bolt 9, an electric wire 10, a lead wire 11, a main pipe 12, a branch pipe 13 and a rotary switch 14.

Detailed Description

The following examples are provided only for illustrating the embodiments of the present invention in detail and are not intended to limit the scope of the present invention in any way.

Example 1: the utility model provides a matrix syringe needle device for electrostatic spinning, refer to fig. 1-fig. 3, base 1 including the conductive metal material, more than one feed inlet 2 has been seted up to one end at base 1, the feedstock channel 4 that is linked together with 2 one-to-one of every feed inlet is seted up along its length direction in base 1 is inside, the discharge gate 5 of two above equidistance arrangements is all seted up along the length direction of every feedstock channel 4 at base 1's top, discharge gate 5 all is linked together with the feedstock channel 4 that corresponds, all install at every discharge gate 5 and spout a syringe needle 6, feed inlet 2 passes through the feed line and is connected with the microinjection pump. The micro-injection pump is communicated to a charging basket for containing the electrostatic spinning raw materials through a material pipe.

The feeding pipeline comprises a main pipe 12 connected with the micro-injection pump through a material pipe 3 and branch pipes 13 connected between the feeding port 2 and the main pipe 12, and each branch pipe 13 is provided with a rotary switch 14.

A through groove 8 is formed in one side face of the base 1 along the length direction of the base, connecting holes which are arranged at equal intervals are formed in the bottom face of the through groove 8, a conductive bolt 9 is installed in each connecting hole, the conductive bolt 9 located at one end of the conductive bolt is correspondingly connected with a high-voltage electrostatic generator through an electric wire 10, and adjacent conductive bolts 9 are electrically connected through a wire.

An inner counter bore is arranged at the discharge port 5, inner threads are arranged on the side wall of the inner counter bore, and the lower part of the spinning needle 6 is connected in the inner counter bore through a needle head seat in a threaded manner. A sealing washer is arranged at the contact position of the inner counter bore and the bottom surface of the needle head seat 7.

Wherein the inner diameter of the spinning needle head is 0.1-0.5 mm.

The apparatus elements referred to in the above embodiments are conventional apparatus elements unless otherwise specified.

The utility model discloses a concrete working method for electrostatic spinning's matrix syringe needle device does:

the needle head device is arranged on a moving mechanism of electrostatic spinning equipment, a feeding pipeline is connected with a micro-injection pump, the micro-injection pump is communicated into a charging basket, high-voltage static electricity is applied to a base through a high-voltage static electricity generator, the needle head device is driven to reciprocate through a moving device in the electrostatic spinning equipment, the surface of a base material with the upper part moved forwards by a roller shaft is sprayed, and a nano-fiber film is formed on the surface of the base material. Wherein, the multiunit syringe needle that is the matrix arrangement spouts the silk simultaneously, and the fibre that forms is thinner, denser, has solved current electrostatic spinning shower nozzle and has produced easily and spout inhomogeneous, the not enough problem of fibre fineness of silk. And whether each group of needles is opened or not can be controlled by a rotary switch, and a plurality of groups of needles are selected to be used for spinning simultaneously or a plurality of groups of needles are selected to be used for spinning so as to adapt to the requirements of different thicknesses and densities of the nanofiber membrane and form the nanofiber membrane with different thicknesses and densities.

The embodiments of the present invention have been described in detail with reference to the drawings and examples, but the present invention is not limited to the above embodiments, and can be modified or changed within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A matrix type needle head device for electrostatic spinning is characterized by comprising a base made of conductive metal, wherein one end of the base is provided with more than one feed inlet, the inside of the base is provided with feed channels communicated with the feed inlets in a one-to-one correspondence manner along the length direction of the base, the top of the base is provided with more than two discharge ports arranged at equal intervals along the length direction of each feed channel, the discharge ports are communicated with the corresponding feed channels, each discharge port is provided with a spinneret needle head, and the feed inlets are connected with a micro-injection pump through feed pipelines;

2. The matrix needle device for electrospinning of claim 1, wherein the feeding line comprises a main pipe connected to the micro-injection pump through a feeding pipe, and a branch pipe connected between each feeding port and the main pipe, and a rotary switch is provided on each branch pipe.

3. The matrix needle device for electrostatic spinning of claim 1, wherein an inner counter bore is formed at the discharge port, an inner thread is formed on a side wall of the inner counter bore, and a lower portion of the spinning needle is screwed in the inner counter bore through a needle seat.

4. The matrix needle device for electrospinning of claim 3, wherein a sealing gasket is provided at the position where the inner counterbore contacts the bottom surface of the needle base.

5. The matrix needle device for electrospinning of claim 1, wherein the micro-injection pump is connected to the barrel containing the electrospinning raw materials through a material tube.

6. The matrix needle device for electrospinning of claim 1, wherein the inner diameter of the spinneret needle is 0.1-0.5 mm.