Mechanical supercharger of skin-core composite structure spinning assembly

Abstract

The utility model discloses a mechanical supercharger of a skin-core composite structure spinning assembly in the field of chemical fiber spinning, which comprises an upper core body, a plurality of liquid inlet channels are arranged on the upper core body, a plurality of liquid outlets corresponding to the liquid inlet channels are arranged at the bottom of the upper core body, and a plurality of spinneret plates are arranged on the lower side of the upper core body. A pressurizing cylinder is correspondingly arranged at each liquid outlet of the upper core body, each pressurizing cylinder comprises a cylinder body I positioned at the upper part and a cylinder body II positioned at the lower part, the outer diameter of the cylinder body I is smaller than that of the cylinder body II, the cylinder body I and the cylinder body II are coaxially arranged, an outer flange is arranged at the lower end of the cylinder body II, a horizontal sealing plate is arranged in the cylinder body II, and a sealing ring is arranged at the lower end of the sealing plate. A plurality of liquid outlet cylinders are arranged on the lower side of the sealing plate in a communicating mode, and the outer flange is fixedly connected with the bottom of the upper core body through a plurality of fasteners evenly distributed in the circumferential direction. According to the utility model, the spinning component can be simply, stably and effectively pressurized without damaging the structure of the component, the melt pressure is stably increased, and any energy consumption is not increased.

Description

Technical Field

[0001] The utility model belongs to the field of chemical fiber spinning, and particularly relates to a mechanical supercharger for a core - sheath composite structure spinning component. Background Art

[0002] In the prior art, during the industrial production process of core - sheath structure composite fibers, in order to achieve the stability of high - speed spinning, metal sand or sea sand is filled in the component to achieve filtration and pressurization. The problems are as follows: the consumption of metal sand and sea sand not only increases the cost, but also the fine dust inside will enter the system, resulting in the blockage of the spinneret, reducing the service life of the component. The frequent replacement of the component will also lead to the decline of spinning quality. Removing the filling of metal sand and sea sand, due to the existence of the cavity set in the component, the pressure is insufficient, resulting in unstable spinning.

[0003] The utility model aims to improve this situation and reduce the production cost while ensuring stable production. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a mechanical supercharger for a core - sheath composite structure spinning component, which can simply, stably, effectively pressurize the spinning component without damaging the component structure, stably increase the melt pressure, and does not increase any energy consumption.

[0005] The purpose of the utility model is achieved as follows: a mechanical supercharger for a core - sheath composite structure spinning component includes an upper core body. A plurality of liquid inlet channels are opened on the upper core body, and a plurality of liquid outlet ports are opened at the bottom of the upper core body corresponding to each liquid inlet channel. A plurality of spinnerets are arranged on the lower side of the upper core body. A supercharging cylinder is correspondingly arranged at each liquid outlet of the upper core body. The supercharging cylinder includes a cylinder body one located above and a cylinder body two located below. The outer diameter of the cylinder body one is smaller than that of the cylinder body two. The cylinder body one and the cylinder body two are coaxially arranged. An outer flange is arranged at the lower end of the cylinder body two. A horizontal closing plate is arranged inside the cylinder body two. A plurality of liquid outlet cylinders are communicated and arranged below the closing plate. The outer flange is fixedly connected with the bottom of the upper core body through a plurality of circumferentially evenly distributed fasteners.

[0006] When the utility model works, liquid enters the corresponding sub-channels through two liquid inlet channels, then enters the spinneret holes on the spinneret plate through the pressure increasing cylinder and is discharged. The pressure increasing cylinder is arranged in the corresponding liquid outlet. When the molten melt enters the pressure increasing cylinder, it enters the second cylinder through the first cylinder, and then is discharged from the liquid outlet cylinder under the closed plate. The inner diameter of the liquid outlet cylinder is smaller than that of the second cylinder, so that the melt can be pressurized and then enter the spinneret holes. The utility model enables the melt to achieve 100% mechanical seal on the distribution plate of the component, causing the melt to mix; reducing the cavity volume and enabling the melt pressure to reach more than 3 MPa. Compared with the prior art, the beneficial effects of the utility model are as follows: reducing the cost of component preparation; reducing the risk of component pollution; simple design and low input cost; stably increasing the melt pressure without increasing any energy consumption.

[0007] As a further improvement of the utility model, there are two liquid inlet channels, which are vertically spaced apart, and the liquid inlet channels are L-shaped.

[0008] As a further improvement of the utility model, the liquid inlet channel includes a transverse channel one and a vertical channel two. The upper core is circular, the channel two coincides with the axis of the upper core, and several L-shaped sub-channels evenly distributed in the circumferential direction are arranged on the outer periphery of the channel two of each liquid inlet channel in the upper core. The upper end of the sub-channel is communicated with the corresponding channel two, each liquid outlet is arranged in one-to-one correspondence with the outlet of each sub-channel, and the lower end of the sub-channel is communicated with the corresponding pressure increasing cylinder. The melt enters each sub-channel through the liquid inlet channel.

[0009] As a further improvement of the utility model, the spinneret plates are stacked in sequence from top to bottom. A number of spinneret holes are provided on the spinneret plate corresponding to each pressure increasing cylinder, and installation grooves are provided on the upper layer spinneret plate corresponding to the pressure increasing cylinders; each liquid outlet cylinder is distributed in a circular shape and radiates outwards, and the number of each spinneret hole is greater than the number of each liquid outlet cylinder. The outer flange extends into the installation groove for easy installation.

[0010] As a further improvement of the utility model, the outer periphery of the spinneret plate is circular, and the spinneret plate coincides with the axis of the upper core. A number of fastening bolts one evenly distributed in the circumferential direction pass through each spinneret plate upwards and are threadedly connected with the upper core. A cushion block seat is arranged in the middle of the lower side of the lower layer spinneret plate. A number of fastening bolts two evenly distributed in the circumferential direction pass through the cushion block seat, each spinneret plate upwards and are threadedly connected with the upper core. The central countersunk head bolt passes through the cushion block seat, the lower spinneret plates and is threadedly connected with the top layer spinneret plate. The spinneret plates are fixed by the fastening bolts one, the fastening bolts two and the central countersunk head bolt.

[0011] As a further improvement of the utility model, an annular cushion block is arranged between each fastening bolt one and the lower layer spinneret plate. Description of the Drawings

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 is Figure 1 an enlarged view of part A in

[0014] Figure 3 is a top view of the pressure intensifying cylinder.

[0015] Figure 4 is a bottom view of the pressure intensifying cylinder.

[0016] Among them, 1 is the upper core body, 2 is the liquid inlet channel, 2a is channel one, 2b is channel two, 3 is the spinneret plate, 4 is the pressure intensifying cylinder, 4a is cylinder one, 4b is cylinder two, 4c is the outer flange, 5 is the closing plate, 5a is the liquid outlet cylinder, 6 is the sub-channel, 7 is the spinneret hole, 8 is the installation groove, 9 is the fastening bolt one, 10 is the pad block seat, 11 is the fastening bolt two, 12 is the center countersunk head bolt, 13 is the annular pad block. Specific embodiments

[0017] As Figures 1-4 shown, it is a mechanical pressure intensifier for a skin-core composite structure spinning assembly, including an upper core body 1. A plurality of liquid inlet channels 2 are opened on the upper core body 1. There are two liquid inlet channels 2, and the two liquid inlet channels 2 are distributed at intervals up and down. The liquid inlet channels 2 are in an L shape. A plurality of liquid outlet ports are opened at the bottom of the upper core body 1 corresponding to each liquid inlet channel 2. A plurality of spinneret plates 3 are arranged on the lower side of the upper core body 1. A pressure intensifying cylinder 4 is correspondingly arranged at each liquid outlet port of the upper core body 1. The pressure intensifying cylinder 4 includes cylinder one 4a located above and cylinder two 4b located below. The outer diameter of cylinder one 4a is smaller than the outer diameter of cylinder two 4b. Cylinder one 4a and cylinder two 4b are coaxially arranged. An outer flange 4c is arranged at the lower end of cylinder two 4b. A horizontal closing plate 5 is arranged inside cylinder two 4b. A plurality of liquid outlet cylinders 5a are communicated and arranged on the lower side of the closing plate 5. The outer flange 4c is fixedly connected with the bottom of the upper core body 1 through a plurality of fasteners evenly distributed in the circumferential direction.

[0018] The liquid inlet channel 2 includes a transverse channel one 2a and a vertical channel two 2b. The upper core body 1 is circular. The channel two 2b coincides with the axis of the upper core body 1. A plurality of L-shaped sub-channels 6 evenly distributed in the circumferential direction are arranged on the outer circumference of the channel two 2b of each liquid inlet channel 2 inside the upper core body 1. The upper end of the sub-channel 6 is communicated with the corresponding channel two 2b. Each liquid outlet port is correspondingly arranged with the outlet of each sub-channel 6. The lower end of the sub-channel 6 is communicated with the corresponding pressure intensifying cylinder 4. The melt enters each sub-channel 6 through the liquid inlet channel 2.

[0019] The spinneret plates 3 are stacked in sequence from top to bottom. A plurality of spinneret holes 7 are opened on the spinneret plate 3 corresponding to each pressure intensifying cylinder 4. An installation groove 8 is opened on the upper layer spinneret plate 3 corresponding to the pressure intensifying cylinder 4. The liquid outlet cylinders 5a are distributed in an annular shape and radiate outward. The number of each spinneret hole 7 is greater than the number of each liquid outlet cylinder 5a. The outer flange 4c extends into the installation groove 8, which is convenient for installation.

[0020] The outer periphery of the spinneret plate 3 is circular, and the axis of the spinneret plate 3 coincides with that of the upper core body 1. A number of uniformly circumferentially distributed fastening bolts I 9 pass upward through each spinneret plate 3 and are threadedly connected to the upper core body 1. A spacer block seat 10 is provided in the middle of the lower side of the lower spinneret plate 3. A number of uniformly circumferentially distributed fastening bolts II 11 pass upward through the spacer block seat 10, each spinneret plate 3 and are threadedly connected to the upper core body 1. The central countersunk head bolt 12 passes through the spacer block seat 10 and the lower spinneret plates 3 and is threadedly connected to the top spinneret plate 3. The spinneret plates 3 are fixed by the fastening bolts I 9, the fastening bolts II 11 and the central countersunk head bolt 12. An annular spacer 13 is provided between each fastening bolt I 9 and the lower spinneret plate 3.

[0021] When the utility model works, the liquid enters the corresponding sub-channels 6 through the two liquid inlet channels 2, and then enters the spinneret holes 7 on the spinneret plate 3 through the pressure increasing cylinder 4 and is discharged. The pressure increasing cylinder 4 is arranged in the corresponding liquid outlet. When the molten melt enters the pressure increasing cylinder 4, it enters the cylinder II 4b through the cylinder I 4a, and then is discharged from the liquid outlet cylinder 5a on the lower side of the closing plate 5. The inner diameter of the liquid outlet cylinder 5a is smaller than that of the cylinder II 4b, so that the melt can be pressurized and then enter the spinneret holes 7. The utility model can achieve 100% mechanical seal of the melt on the distribution plate of the assembly, causing the melt to mix; reducing the cavity volume and enabling the melt pressure to reach more than 3 MPa. The advantages of the utility model are as follows: reducing the cost of component preparation; reducing the risk of component contamination; simple design and low input cost; stably increasing the melt pressure without increasing any energy consumption. The utility model is a system with one-time installation and long-term operation, ensuring stable operation, improving the service life of the component, reducing the cost of component preparation, and being a simple and stable device.

[0022] The utility model is not limited to the above embodiments. Based on the technical solutions disclosed in the utility model, those skilled in the art can make some substitutions and deformations to some technical features without creative labor according to the disclosed technical content, and these substitutions and deformations are all within the protection scope of the utility model.

Claims

1. A mechanical supercharger for a core - sheath composite structure spinning assembly, comprising an upper core body. A plurality of liquid inlet channels are provided on the upper core body, and a plurality of liquid outlet ports corresponding to the liquid inlet channels are provided at the bottom of the upper core body. A plurality of spinnerets are provided on the lower side of the upper core body, characterized in that, A pressure increasing cylinder is correspondingly provided at each liquid outlet of the upper core body. The pressure increasing cylinder includes a cylinder body 1 located above and a cylinder body 2 located below. The outer diameter of the cylinder body 1 is smaller than that of the cylinder body 2. The cylinder body 1 and the cylinder body 2 are coaxially arranged. An outer flange is provided at the lower end of the cylinder body 2. A horizontal closing plate is provided inside the cylinder body 2. A plurality of liquid outlet cylinders are communicated and arranged on the lower side of the closing plate. The outer flange is fixedly connected with the bottom of the upper core body through a plurality of fasteners evenly distributed along the circumferential direction.

2. The mechanical supercharger of a skin-core composite structure spinning component according to claim 1, characterized in that, There are two liquid inlet channels, and the two liquid inlet channels are distributed at intervals up and down. The liquid inlet channels are L-shaped.

3. The mechanical supercharger of a skin-core composite structure spinning component according to claim 2, characterized in that, The liquid inlet channel includes a transverse channel 1 and a vertical channel 2. The upper core body is circular. The channel 2 coincides with the axis of the upper core body. A plurality of L-shaped sub-channels evenly distributed along the circumferential direction are provided on the outer periphery of the channel 2 of each liquid inlet channel in the upper core body. The upper end of the sub-channel is communicated with the corresponding channel 2. Each liquid outlet is arranged in one-to-one correspondence with the outlet of each sub-channel. The lower end of the sub-channel is communicated with the corresponding pressure increasing cylinder.

4. The mechanical supercharger of a sheath-core composite structure spinning component according to claim 3, characterized in that, Each spinneret plate is stacked and arranged from top to bottom in sequence. A plurality of spinneret holes are provided on the spinneret plate corresponding to each pressure increasing cylinder. An installation groove is provided on the upper layer spinneret plate corresponding to the pressure increasing cylinder. Each liquid outlet cylinder is distributed in a circular shape and radiates outward. The number of each spinneret hole is greater than the number of each liquid outlet cylinder.

5. The mechanical supercharger of a sheath-core composite structure spinning component according to claim 3 or 4, characterized in that, The outer periphery of the spinneret plate is circular and coincides with the axis of the upper core body. A plurality of fastening bolts 1 evenly distributed along the circumferential direction pass through each spinneret plate upward and are threadedly connected with the upper core body. A cushion block seat is provided in the middle of the lower side of the lower layer spinneret plate. A plurality of fastening bolts 2 evenly distributed along the circumferential direction pass through the cushion block seat, each spinneret plate upward and are threadedly connected with the upper core body. The central countersunk head bolt passes through the cushion block seat, the lower layer spinneret plates and is threadedly connected with the top layer spinneret plate.

6. The mechanical supercharger of a skin-core composite structure spinning component according to claim 5, characterized in that, An annular cushion block is provided between each fastening bolt 1 and the lower layer spinneret plate.

Images