Movable online melt spinning injector

Abstract

The utility model discloses a movable online melt spinning injector which comprises a needle tube. The needle tube comprises a base layer, a first micro silicon dioxide aerogel coating, a second micro silicon dioxide aerogel coating, a first high-silica fiber woven layer, a second high-silica fiber woven layer, a first polyurethane coating and a second polyurethane coating. The needle tube, the base layer, the first micro silicon dioxide aerogel coating, the second micro silicon dioxide aerogel coating, the first high-silica fiber woven layer, the second high-silica fiber woven layer, the first polyurethane coating, the second polyurethane coating, the connector, the needle head, the piston and the piston push rod are matched with one another. The effect of good heat preservation effect is achieved, the cooling speed of melt in the needle tube is effectively delayed, and therefore the influence on the spinning effect of the needle head is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of spinning injectors, in particular to a movable online melt spinning injector. Background Art

[0002] Melt electrospinning technology is an effective method for manufacturing polymer micro-nano fibers. The principle is to produce nanofibers by stretching the polymer melt through a strong electric field to form a jet stream deposition. Under the action of the strong electric field, the adhesion material at the melt spinning needle changes from a sphere to a cone (Taylor cone), and fiber filaments are extended from the tip of the cone.

[0003] At present, as in the patent application number CN201922254791.1, the utility model discloses a continuous or intermittent stirring blended electrospinning syringe, and the utility model belongs to the field of blended electrospinning. The problem that the inorganic powder in the spinning solution is prone to sedimentation in the needle tube and accumulates at the bottom of the needle tube, affecting the quality of the electrospinning diaphragm, is solved in the existing blended electrospinning process. A needle is arranged at the front end of the syringe, a rubber plunger inserted into the inside of the syringe is arranged at the rear end of the syringe, and a plunger push rod is arranged at the rear end of the rubber plunger.

[0004] However, in actual use, the spinning syringe of the above patent has the following defects: poor thermal insulation effect, which leads to increased viscosity of the melt inside the needle tube due to rapid cooling, thereby affecting the spinning effect of the needle. For this reason, we propose a movable online melt spinning syringe. Utility Model Content

[0005] The utility model aims to provide a movable online melt spinning injector to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a movable online melt spinning injector, comprising:

[0007] A needle tube, the needle tube comprising a base layer, a first fine silica aerogel coating, a second fine silica aerogel coating, a first high-silica fiber braided layer, a second high-silica fiber braided layer, a first polyurethane coating and a second polyurethane coating, wherein the first fine silica aerogel coating is fixedly connected to the top of the base layer;

[0008] A connector, the right side of the needle tube is threadedly connected with the connector, and the connector and the needle tube are communicated with each other;

[0009] A needle is fixedly connected to the right side of the connector.

[0010] Furthermore, a piston is movably connected inside the needle tube, a piston push rod is fixedly installed on the left side of the piston, and the left end of the piston push rod passes through the needle tube and extends to the outside of the needle tube.

[0011] Furthermore, a second fine silica aerogel coating is fixedly connected to the bottom of the base layer, and the thickness of the second fine silica aerogel coating is the same as the thickness of the first fine silica aerogel coating.

[0012] Furthermore, a first high-silica fiber braided layer is fixedly connected to the top of the first fine silica aerogel coating, and the thickness of the first high-silica fiber braided layer is the same as the thickness of the first fine silica aerogel coating.

[0013] Furthermore, a second high-silica fiber braided layer is fixedly connected to the bottom of the second fine silica aerogel coating, and the thickness of the second high-silica fiber braided layer is the same as the thickness of the second fine silica aerogel coating.

[0014] Furthermore, a first polyurethane coating is fixedly connected to the top of the first high-silica fiber braided layer, and the thickness of the first polyurethane coating is the same as the thickness of the first high-silica fiber braided layer.

[0015] Furthermore, a second polyurethane coating is fixedly connected to the bottom of the second high-silica fiber braided layer, and the thickness of the second polyurethane coating is the same as the thickness of the second high-silica fiber braided layer.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] The utility model has a good heat preservation effect through the cooperation of the needle tube, the base layer, the first fine silica aerogel coating, the second fine silica aerogel coating, the first high-silica fiber braided layer, the second high-silica fiber braided layer, the first polyurethane coating, the second polyurethane coating, the connector, the needle, the piston and the piston push rod, thereby effectively delaying the cooling speed of the melt inside the needle tube, thereby effectively avoiding affecting the spinning effect of the needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 It is a front view structural cross-sectional view of the utility model;

[0021] Figure 4It is a schematic diagram of the layered structure of the needle tube of the utility model.

[0022] In the figure: 1. needle tube; 101. base layer; 102. first fine silica aerogel coating; 103. second fine silica aerogel coating; 104. first high silica fiber braided layer; 105. second high silica fiber braided layer; 106. first polyurethane coating; 107. second polyurethane coating; 2. connector; 3. needle; 4. piston; 5. piston push rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships 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 operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1-4A movable online melt spinning injector comprises a needle tube 1, wherein the needle tube 1 comprises a base layer 101, a first fine silica aerogel coating 102, a second fine silica aerogel coating 103, a first high silica fiber braided layer 104, a second high silica fiber braided layer 105, a first polyurethane coating 106 and a second polyurethane coating 107, the top of the base layer 101 is fixedly connected with the first fine silica aerogel coating 102, the right side of the needle tube 1 is threadedly connected with a connector 2, the connector 2 and the needle tube 1 are connected to each other, and the right side of the connector 2 is fixedly connected with a needle 3.

[0027] Specifically, the inside of the needle tube 1 is movably connected with a piston 4, and a piston push rod 5 is fixedly installed on the left side of the piston 4. The left end of the piston push rod 5 penetrates the needle tube 1 and extends to the outside of the needle tube 1.

[0028] In a specific implementation, the bottom of the base layer 101 is fixedly connected with the second fine silica aerogel coating 103 , and the thickness of the second fine silica aerogel coating 103 is the same as that of the first fine silica aerogel coating 102 .

[0029] Specifically, a first high-silica fiber braided layer 104 is fixedly connected to the top of the first fine silica aerogel coating 102 , and the thickness of the first high-silica fiber braided layer 104 is the same as the thickness of the first fine silica aerogel coating 102 .

[0030] In specific implementation, the bottom of the second fine silica aerogel coating 103 is fixedly connected with the second high-silica fiber braided layer 105 , and the thickness of the second high-silica fiber braided layer 105 is the same as the thickness of the second fine silica aerogel coating 103 .

[0031] Specifically, the top of the first high-silica fiber braided layer 104 is fixedly connected with the first polyurethane coating 106 , and the thickness of the first polyurethane coating 106 is the same as the thickness of the first high-silica fiber braided layer 104 .

[0032] In a specific implementation, the bottom of the second high-silica fiber braided layer 105 is fixedly connected with the second polyurethane coating 107 , and the thickness of the second polyurethane coating 107 is the same as that of the second high-silica fiber braided layer 105 .

[0033] In actual application: by setting the base layer 101, the first fine silica aerogel coating 102, the second fine silica aerogel coating 103, the first high-silica fiber braided layer 104, the second high-silica fiber braided layer 105, the first polyurethane coating 106, and the second polyurethane coating 107, the heat preservation effect of the needle tube 1 is greatly improved, thereby greatly reducing the cooling rate of the melt in the needle tube 1, thereby avoiding affecting the spinning effect of the needle head 3.

[0034] All components in the present invention are universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. At the same time, standard parts used in the present application documents can be purchased from the market, and each component in the present application document can be customized according to the description in the specification and drawings. The specific connection method of each component adopts conventional means such as mature bolts, rivets, welding, etc. in the prior art, and machinery, parts and equipment adopt conventional models in the prior art.

[0035] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the working principle, and the electrical connection between the electrical components should be completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The utility model mainly introduces the working principle and process, and no longer explains the electrical control.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A movable online melt spinning injector, characterized in that: include: A needle tube (1), the needle tube (1) comprising a base layer (101), a first fine silica aerogel coating (102), a second fine silica aerogel coating (103), a first high-silica fiber braided layer (104), a second high-silica fiber braided layer (105), a first polyurethane coating (106) and a second polyurethane coating (107), wherein the top of the base layer (101) is fixedly connected to the first fine silica aerogel coating (102); A connector (2), the right side of the needle tube (1) is threadedly connected to the connector (2), and the connector (2) and the needle tube (1) are in communication with each other; A needle (3) is fixedly connected to the right side of the connector (2).

2. A movable in-line melt spinning injector according to claim 1, characterized in that: The needle tube (1) is movably connected to a piston (4), and a piston push rod (5) is fixedly mounted on the left side of the piston (4). The left end of the piston push rod (5) penetrates the needle tube (1) and extends to the outside of the needle tube (1).

3. A movable in-line melt spinning injector according to claim 2, characterized in that: A second fine silica aerogel coating (103) is fixedly connected to the bottom of the base layer (101), and the thickness of the second fine silica aerogel coating (103) is the same as the thickness of the first fine silica aerogel coating (102).

4. A movable in-line melt spinning injector according to claim 3, characterized in that: A first high-silica fiber braided layer (104) is fixedly connected to the top of the first fine silica aerogel coating (102), and the thickness of the first high-silica fiber braided layer (104) is the same as the thickness of the first fine silica aerogel coating (102).

5. The movable in-line melt spinning injector according to claim 4, characterized in that: A second high-silica fiber braided layer (105) is fixedly connected to the bottom of the second fine silica aerogel coating (103), and the thickness of the second high-silica fiber braided layer (105) is the same as the thickness of the second fine silica aerogel coating (103).

6. The movable in-line melt spinning injector according to claim 5, characterized in that: A first polyurethane coating (106) is fixedly connected to the top of the first high-silica fiber braided layer (104), and the thickness of the first polyurethane coating (106) is the same as the thickness of the first high-silica fiber braided layer (104).

7. The movable in-line melt spinning injector according to claim 6, characterized in that: A second polyurethane coating (107) is fixedly connected to the bottom of the second high-silica fiber braided layer (105), and the thickness of the second polyurethane coating (107) is the same as the thickness of the second high-silica fiber braided layer (105).

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