Spinning mechanism for PLA bio-based fibers

Abstract

The utility model discloses a spinning mechanism for PLA bio-based fibers, which comprises a spinning box body, the spinning box body is connected with a discharging channel, a discharging end of the discharging channel is provided with a spinning assembly, the spinning assembly comprises a spinning plate, the spinning plate is provided with a plurality of spinning holes, the spinning holes are communicated with the discharging channel, and the discharging channel is communicated with the spinning box body. An auxiliary plate is arranged below the spinneret plate, a plurality of dyeing holes are formed in the auxiliary plate, the discharging ends of the spinneret holes are connected with spinneret guide pipes, the spinneret guide pipes are arranged in the dyeing holes, the dyeing holes are communicated with dye flow channels, and the dye flow channels are connected with a dye box. According to the utility model, the dyeing holes are formed in the front of the spinneret plate, and the dye is directly compounded on the surface of the fiber after spinning, so that the dye is firmly combined with the fiber, and the problem that the PLA bio-based fiber is difficult to dye is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of spinnerets, and in particular to the technical field of spinnerets for PLA bio-based fibers. Background Technology

[0002] PLA bio-based fiber, also known as polylactic acid fiber, is made from starchy agricultural products such as corn, wheat, and sugar beets. After fermentation to produce lactic acid, it is then polymerized and melt-spun. It is a synthetic fiber whose raw materials are easy to grow and whose waste can be naturally degraded in nature.

[0003] PLA bio-based fibers are characterized by a lack of hydrophilic groups, high crystallinity, smooth surface, and strong hydrophobicity, which leads to difficulties in dyeing them during production. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a spinneret mechanism for PLA bio-based fibers, which can solve the above problems.

[0005] To achieve the above objectives, this utility model proposes a spinning mechanism for PLA bio-based fibers, including a spinning box body connected to a discharge channel. A spinning assembly is provided at the discharge end of the discharge channel. The spinning assembly includes a spinning plate with several spinning holes connected to the discharge channel. An auxiliary plate is provided below the spinning plate with several dyeing holes. A spinning guide tube is connected to the discharge end of each spinning hole and is positioned within the dyeing hole. The dyeing hole is connected to a dye channel, which is connected to a dye box body.

[0006] Preferably, the spinneret is tapered, wider at the top and narrower at the bottom, and the dyeing orifice is tapered, wider at the top and narrower at the bottom.

[0007] Preferably, the diameter of the discharge channel gradually increases towards the spinneret.

[0008] Preferably, the spinneret guide is coaxially arranged with the dyeing orifice.

[0009] Preferably, the spinneret is connected to a spinning channel.

[0010] The beneficial effects of this utility model are as follows: By setting a dyeing hole in front of the spinneret, the dye is directly compounded on the surface of the fiber after spinning, so that it is firmly bonded to the fiber, thus solving the problem of difficult dyeing of PLA bio-based fibers.

[0011] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the spinneret assembly of this utility model.

[0014] In the diagram: 1. Spinning box; 2. Discharge channel; 3. Spinneret assembly; 4. Spinneret plate; 5. Auxiliary plate; 6. Spinneret guide tube; 7. Dye channel; 8. Dye box; 9. Spinning tunnel; 41. Spinneret hole; 51. Dyeing hole. Detailed Implementation

[0015] See Figure 1 , Figure 2 A spinning mechanism for PLA bio-based fibers includes a spinning box 1, which is connected to a discharge channel 2. The discharge end of the discharge channel 2 is provided with a spinning assembly 3, which includes a spinning plate 4. The spinning plate 4 has a plurality of spinning holes 41, which are connected to the discharge channel 2. An auxiliary plate 5 is provided below the spinning plate 4, which has a plurality of dyeing holes 51. The discharge end of the spinning holes 41 is connected to a spinning guide tube 6, which is disposed in the dyeing holes 51. The dyeing holes 51 are connected to a dye channel 7, which is connected to a dye box 8.

[0016] The spinneret 6 is a tapered shape with a larger top and a smaller bottom, and the dyeing orifice 51 is a tapered orifice with a larger top and a smaller bottom.

[0017] The diameter of the discharge channel 2 gradually increases towards the spinneret 4.

[0018] The spinneret 6 is coaxially arranged with the dyeing hole 51.

[0019] The spinneret 3 is connected to the spinning channel 9.

[0020] The spinning solution flows from the spinning box into the discharge channel and then is ejected from the spinneret hole. The dye solution flows from the dye box into the dye channel and then into the dyeing hole. The fibers coming out of the spinneret tube are coated with the dye solution and then enter the spinning tunnel to form fibers.

[0021] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A spinning mechanism for PLA bio-based fiber, characterized by: The device includes a spinning box (1), which is connected to a discharge channel (2). The discharge end of the discharge channel (2) is provided with a spinneret assembly (3). The spinneret assembly (3) includes a spinneret plate (4). The spinneret plate (4) has several spinneret holes (41) and the spinneret holes (41) are connected to the discharge channel (2). An auxiliary plate (5) is provided below the spinneret plate (4). The auxiliary plate (5) has several dyeing holes (51) and the discharge end of the spinneret hole (41) is connected to a spinneret guide (6). The spinneret guide (6) is located in the dyeing hole (51). The dyeing hole (51) is connected to a dye channel (7) and the dye channel (7) is connected to a dye box (8).

2. The PLA bio-based fiber jetting mechanism of claim 1, wherein: The spinneret (6) is a tapered shape with a larger top and a smaller bottom, and the dyeing hole (51) is a tapered hole with a larger top and a smaller bottom.

3. The PLA bio-based fiber jetting mechanism of claim 1, wherein: The diameter of the discharge channel (2) gradually increases toward the spinneret (4).

4. The PLA bio-based fiber jetting mechanism of claim 1, wherein: The spinneret (6) is coaxially arranged with the dyeing hole (51).

5. The spinneret mechanism for PLA bio-based fibers as described in claim 1, characterized in that: The spinneret (3) is connected to a spinning channel (9).

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