Rotary slow cooling spinneret plate

Abstract

The utility model provides a rotary slow-cooling spinneret plate, which relates to the field of chemical fiber production and comprises a spinneret plate body and a plurality of spinneret orifices. All the spinneret orifices penetrate through the spinneret plate body; the spinneret plate body is also provided with a ventilating duct; the cross section of the ventilating duct is annular; the ventilating duct vertically penetrates through the spinneret plate body; part of the spinneret orifices are positioned in the ventilating duct ring, and the other spinneret orifices are positioned outside the ventilating duct ring; an annular bottom plate is arranged in the ventilating duct; a plurality of uniformly distributed open holes are formed in the annular bottom plate; a plurality of baffles are further arranged above the annular bottom plate; the baffle can block part of the holes; the baffle can do circular motion around the center of the annular bottom plate. According to the utility model, the problem that the temperature of the raw material reaching the outlet of the spinneret orifice cannot be controlled because the raw material in the spinneret orifice is easily cooled when a through ventilation opening is used in the prior art can be solved, the raw material in the spinneret orifice is slowly cooled, and the raw material is prevented from being solidified and blocked in the spinneret orifice.

Description

Technical Field

[0001] The utility model relates to the field of chemical fiber production, in particular to a rotary slow-cooling spinneret. Background Art

[0002] The spinneret, also known as the spinning cap, can transform the viscous polymer melt or solution into a thin stream with a specific cross-section through micropores, which is solidified by a coagulation medium such as air or a coagulation bath to form filaments.

[0003] However, when using a spinneret, the high-temperature raw material will be solidified and formed by cooling by side blowing or ring blowing immediately after the chemical fiber is ejected from the spinneret hole. At the same time, since the diameter of the spinneret hole is very fine, the sudden transition of the raw material from the high-temperature molten state to the low-temperature solidified state can easily cause the raw material to solidify at the outlet of the spinneret hole, causing the spinneret hole to become blocked.

[0004] In this regard, Chinese patent application No. 201720607773.5 discloses a spinneret that is easy to feed without clogging the holes, including a spinneret body; the spinneret body is provided with ventilation ducts and spinneret holes; a layer of heat-conducting plate is inlaid on the discharge port side of the spinneret body; the ventilation duct and the spinneret holes pass through the heat-conducting plate on the spinneret body; the outer edge of the discharge port of the spinneret hole is not higher than the outer surface of the heat-conducting plate; the outer edge of the air outlet of the ventilation duct is higher than the outer surface of the heat-conducting plate; this patent makes the outer edge of the discharge port of the spinneret hole not higher than the outer surface of the heat-conducting plate, and the outer edge of the air outlet of the ventilation duct is higher than the outer surface of the heat-conducting plate, so that when the raw material is ejected from the spinneret hole, the wind blown out from the air outlet cannot contact the raw material at the bottom of the spinneret hole for the first time, and the raw material will not be affected by the cooling of the blowing air, thereby avoiding the blockage of the spinneret hole.

[0005] However, when using the spinneret provided by the patent, when cooling air continues to pass through the vents on the spinneret, it is easy to cool the raw material in the spinneret hole, and thus the temperature of the raw material reaching the outlet of the spinneret hole cannot be controlled, which may cause the temperature of the raw material to fail to meet the spinning temperature requirements, and the raw material solidifies and accumulates in the spinneret hole, thereby clogging the spinneret hole. Utility Model Content

[0006] In response to the above-mentioned problems, the utility model provides a rotary slow-cooling spinneret, which can solve the problem that the prior art easily cools the raw material in the spinneret hole when using the through vent, and thus cannot control the temperature of the raw material when it reaches the spinneret hole outlet, thereby achieving slow cooling of the raw material in the spinneret hole and preventing the raw material from solidifying and clogging in the spinneret hole.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] The utility model provides a rotary slow cooling spinneret, comprising a spinneret body and a plurality of spinneret holes; all the spinneret holes penetrate the spinneret body; a ventilation duct is also provided on the spinneret body; the cross section of the ventilation duct is annular; the cross sections of any two ventilation ducts are equal; the ventilation duct vertically penetrates the spinneret body; the spinneret body is separated into a circular first spinneret and an annular second spinneret by the ventilation duct; some of the spinneret holes are located on the first spinneret, and the rest of the spinneret holes are located on the second spinneret;

[0009] An annular bottom plate is arranged in the ventilation duct; the annular bottom plate is placed horizontally; the first spinneret and the second spinneret are fixed to the annular bottom plate; a plurality of evenly distributed openings are arranged on the annular bottom plate; a plurality of baffles are arranged above the annular bottom plate; the baffles can block part of the openings; and the baffles can make circular motion around the center of the annular bottom plate.

[0010] The rotary slow-cooling spinneret provided by the utility model is preferably provided with an electric heating wire in the baffle.

[0011] The rotary slow-cooling spinneret provided by the utility model is preferably arranged such that all the baffles are distributed in a circular array around the center of the annular bottom plate; a number of evenly distributed temperature sensors are arranged on the side wall of the first spinneret and the inner side wall of the ring of the second spinneret; and the temperature sensors are electrically connected to the heating wire.

[0012] The utility model provides a rotary slow-cooling spinneret, preferably, a motor is arranged on the side wall of the first spinneret; the output shaft of the motor is arranged vertically downward; a driving gear is fixed on the output shaft of the motor; the output shaft of the motor is located on the axis of the driving gear; a driven gear assembly is rotatably fixed on the side wall of the first spinneret; the driven gear assembly includes a driven gear and an annular carrier; the annular carrier is fixed to the bottom of the driven gear; the axis of the annular carrier coincides with the axis of the driven gear; the axis of the driven gear assembly coincides with the center of the first spinneret; the driving gear is meshingly connected with the driven gear; the baffle is fixed to the outer ring wall of the annular carrier; the motor is electrically connected to the temperature sensor.

[0013] The rotary slow-cooling spinneret provided by the utility model is preferably provided with a filter screen in the ventilation duct; the filter screen is located above the baffle; and the filter screen is fixed between the first spinneret and the second spinneret.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] The utility model provides a rotary slow-cooling spinneret, a spinneret body is provided with a ventilation duct, the ventilation duct vertically penetrates the spinneret body, and all the spinneret holes penetrate the spinneret body. When cooling air continuously passes through the ventilation duct, the spinneret holes also penetrating the spinneret body can be cooled in advance under the influence of the cooling air in the ventilation duct, to prevent the raw materials from being affected by the side blowing or the ring blowing and suddenly changing from a high-temperature melting state to a low-temperature solidifying state, to avoid the bottom of the spinneret holes being blocked by the solidified raw materials, and at the same time, cooling the raw material melt in advance can improve the spinnability of the raw material melt and the quality of the spun yarn bundles.

[0016] The utility model provides a rotary slow-cooling spinneret, an annular bottom plate is arranged in the ventilation duct, a plurality of evenly distributed openings are opened on the annular bottom plate, the annular bottom plate can resist most of the cooling wind in the ventilation duct, the openings arranged thereon can allow part of the cooling wind to pass through the annular bottom plate to cool the raw materials in the spinneret hole, the annular baffle plate prevents a large amount of cooling wind from continuously passing through the ventilation duct, thereby causing the problem of rapid cooling of the raw materials in the spinneret hole; a plurality of baffle plates are also arranged above the annular bottom plate, the baffle plates can block part of the openings, the baffle plates can make circular motion around the center of the annular bottom plate, the baffle plates can further control the opening and closing of the openings, thereby controlling the air volume in a partial area, so as to achieve the purpose of controlling the cooling speed of the raw materials in the spinneret hole, thereby controlling the temperature of the raw materials arriving at the outlet of the spinneret hole, realizing slow cooling of the raw materials in the spinneret hole, and preventing the raw materials from solidifying and clogging in the spinneret hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, but the emphasis is on illustrating the subject matter of the present invention.

[0018] Figure 1 It is a structural schematic diagram of a rotary slow-cooling spinneret provided in Example 1 of the utility model.

[0019] Figure 2 It is a top view schematic diagram of the internal structure of a rotary slow-cooling spinneret provided in Example 1 of the utility model.

[0020] Figure 3 It is a three-dimensional schematic diagram of the internal structure of a rotary slow-cooling spinneret provided in Example 1 of the utility model.

[0021] Figure 4 yes Figure 3 A partial enlarged schematic diagram of the structure.

[0022] Figure 5 It is a stereoscopic schematic diagram of the internal structure of a rotary slow-cooling spinneret provided in Example 1 of the utility model from other viewing angles.

[0023] Figure 6 yes Figure 5 A partial enlarged schematic diagram of the structure. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0025] Embodiment 1:

[0026] like Figures 1-2 As shown, a rotary slow cooling spinneret provided by Example 1 of the utility model comprises a spinneret body 0 and a plurality of spinneret holes 1; all the spinneret holes 1 penetrate the spinneret body 0; a ventilation duct 2 is also provided on the spinneret body 0; the cross section of the ventilation duct 2 is annular; the cross sections of any two ventilation ducts 2 are equal; the ventilation duct 2 vertically penetrates the spinneret body 0; the spinneret body 0 is separated into a circular first spinneret 01 and an annular second spinneret 02 by the ventilation duct 2; some spinneret holes 1 are located on the first spinneret 01, and the remaining spinneret holes 1 are located on the second spinneret 02;

[0027] An annular bottom plate 3 is arranged in the ventilation duct 2; the annular bottom plate 3 is placed horizontally; the first spinneret 01 and the second spinneret 02 are fixed to the annular bottom plate 3; a plurality of evenly distributed openings 31 are opened on the annular bottom plate 3; a plurality of baffles 4 are also arranged above the annular bottom plate 3; the baffles 4 can block part of the openings 31; the baffles 4 can make circular motion around the center of the annular bottom plate 3.

[0028] When using the rotary slow-cooling spinneret provided in Example 1 of the utility model, the melted raw material enters from the spinneret holes 1 opened on each spinneret body 0, and cooling air continuously passes through the ventilation duct 2. The cooling air passes through the annular bottom plate 3 in the ventilation duct 2, and continues downward from the opening 31 opened on the annular bottom plate 3 until it leaves the spinneret body 0. The melted raw material is cooled down by the cooling wind, passes through the spinneret holes 1, and leaves from the bottom of the spinneret body 0, and is finally solidified into a single filament by the annular blowing air. While the raw material passes through the spinneret holes 1, the baffle 4 can make a circular motion around the center of the annular bottom plate 3, intermittently shielding the opening 31 in part of the area to reduce the flow of cooling air in part of the area.

[0029] The rotary slow-cooling spinneret provided in Example 1 of the utility model is provided with a ventilation duct 2 on the spinneret body 0, the ventilation duct 2 vertically penetrates the spinneret body 0, and all the spinneret holes 1 penetrate the spinneret body 0. When cooling air continuously passes through the ventilation duct 2, the spinneret holes 1 which also penetrate the spinneret body 0 can be cooled down in advance under the influence of the cooling air in the ventilation duct 2, so as to prevent the raw materials from being affected by the side blowing or the ring blowing and suddenly changing from the high-temperature melting state to the low-temperature solidification state, so as to avoid the bottom of the spinneret hole 1 being blocked by the solidified raw material. At the same time, cooling the raw material melt in advance can improve the spinnability of the raw material melt and the quality of the spun yarn bundle.

[0030] The rotary slow-cooling spinneret provided in Example 1 of the utility model has an annular bottom plate 3 in the ventilation duct 2, and a plurality of evenly distributed openings 31 are provided on the annular bottom plate 3. The annular bottom plate 3 can block most of the cooling wind in the ventilation duct 2, and the openings 31 provided thereon can allow part of the cooling wind to pass through the annular bottom plate 3 to cool the raw material in the spinneret hole 1. The annular baffle 3 prevents a large amount of cooling wind from continuously passing through the ventilation duct, thereby causing the problem of rapid cooling of the raw material in the spinneret hole 1; a plurality of baffles 4 are also provided above the annular bottom plate 3, and the baffle 4 can block part of the openings 31. The baffle 4 can make a circular motion around the center of the annular bottom plate 3, and the baffle 4 can further control the opening and closing of the openings 31, so as to control the air volume in a partial area, so as to achieve the purpose of controlling the cooling speed of the raw material in the spinneret hole 1, thereby controlling the temperature of the raw material arriving at the outlet of the spinneret hole 1, realizing slow cooling of the raw material in the spinneret hole 1, and preventing the raw material from solidifying and clogging in the spinneret hole 1.

[0031] The rotary slow-cooling spinneret provided in Example 1 of the utility model is preferably provided with an electric heating wire in the baffle 4. The electric heating wire can keep the raw material in the spinneret hole 1 warm. After the electric heating wire is energized and heated, it indirectly contacts the first spinneret 01 and the second spinneret 02, and heats the first spinneret 01 and the second spinneret 02 through heat conduction of the object, thereby keeping the raw material melt in the spinneret hole 1 warm and preventing the raw material melt in the spinneret hole 1 from cooling and solidifying. At the same time, the cooling air passing through the ventilation duct 2 can take away part of the heat generated by the electric heating wire, so that the cooling air increases part of the temperature, so that the temperature of the cooling air and the raw material melt in the spinneret hole 1 are close, and it is easier to control the cooling rate of the raw material in the spinneret hole 1 and the temperature of the raw material at the outlet of the spinneret hole 1.

[0032] like Figures 2-3As shown, the rotary slow-cooling spinneret provided in Example 1 of the utility model preferably has all baffles 4 distributed in a circular array around the center of the annular bottom plate 3. When the baffles 4 make a circular motion around the center of the annular bottom plate 3, all the spinneret holes 1 can be heated evenly, thereby improving the quality of the single filament; further, a number of evenly distributed temperature sensors 21 are arranged on the side wall of the first spinneret 01 and the inner side wall of the ring of the second spinneret 02, so that the temperature sensor 21 is electrically connected to the heating wire. When the temperature sensor 21 detects that the first spinneret 01 and the second spinneret 02 are greatly affected by the cooling wind in the ventilation duct 2 and the temperature of the first spinneret 01 and the second spinneret 02 is relatively low, the heating effect of the heating wire can be improved, thereby increasing the overall temperature of the first spinneret 01 and the second spinneret 02, so that the raw material melt in the spinneret hole 1 is maintained in a better temperature range.

[0033] like Figures 4 to 6 As shown, the rotary slow-cooling spinneret provided in Example 1 of the utility model, preferably, a motor 5 is arranged on the side wall of the first spinneret 01, the output shaft of the motor 5 is arranged vertically downward, and a driving gear 6 is fixed on the output shaft of the motor 5. In order to ensure that the rotational force output by the motor 5 can be transmitted by the driving gear 6, the output shaft of the motor 5 is located on the axis of the driving gear 6; in order to realize the circular motion of the baffle 4 around the center of the annular bottom plate 3, a driven gear assembly 7 is rotatably fixed on the side wall of the first spinneret 01, and the driven gear assembly 7 includes a driven gear 71 and an annular carrier 72, the annular carrier 72 is fixed to the bottom of the driven gear 71, and the axis of the annular carrier 72 coincides with the axis of the driven gear 71, so that the angular velocity of the annular carrier 72 is consistent with the angular velocity of the driven gear 71. The axis of the wheel assembly 7 coincides with the center of the first spinneret 01, so that the driven gear assembly 7 can rotate around the center of the first spinneret 01, the driving gear 6 is meshed and connected with the driven gear 71, and the baffle 4 is fixed to the outer ring wall of the annular carrier 72. When the driving gear 6 rotates, the driven gear assembly 7 is driven to rotate by the driving gear 6, so that the baffle 4 fixed on the outer ring wall of the annular carrier 72 can make a circular motion around the center of the annular bottom plate 3; the motor 5 is electrically connected to the temperature sensor 21. When the temperature sensor 21 detects that the temperature of the first spinneret 01 and the second spinneret 02 is low, the rotation speed of the motor 5 is accelerated, so that the heating wire in the baffle 4 can circulate more times in a shorter time, thereby improving the heat transfer effect of the baffle 4 on the first spinneret 01 and the second spinneret 02.

[0034] like Figure 1 As shown, the rotary slow-cooling spinneret provided in Example 1 of the utility model is preferably provided with a filter screen 22 in the ventilation duct 2 to prevent the opening 31 on the annular bottom plate 3 from being blocked. The filter screen 22 is located above the baffle plate 4 and is fixed between the first spinneret 01 and the second spinneret 02.

[0035] To sum up, the rotary slow-cooling spinneret provided by the utility model can solve the problem in the prior art that the raw material in the spinneret hole is easily cooled when the through vent is used, and thus the temperature of the raw material reaching the spinneret hole outlet cannot be controlled, thereby achieving slow cooling of the raw material in the spinneret hole and preventing the raw material from solidifying and clogging in the spinneret hole.

[0036] Those skilled in the art should understand that those skilled in the art can implement the above-mentioned variations by combining the prior art and the above-mentioned embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present utility model, and will not be described in detail here.

[0037] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the utility model, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A rotary slow cooling spinneret, comprising a spinneret body and a plurality of spinneret holes; characterized in that: All the spinneret holes penetrate the spinneret body; the spinneret body is also provided with a ventilation duct; the cross section of the ventilation duct is annular; the cross sections of any two ventilation ducts are equal; the ventilation duct vertically penetrates the spinneret body; the spinneret body is separated into a circular first spinneret and an annular second spinneret by the ventilation duct; some of the spinneret holes are located on the first spinneret, and the rest of the spinneret holes are located on the second spinneret; An annular bottom plate is arranged in the ventilation duct; the annular bottom plate is placed horizontally; the first spinneret and the second spinneret are fixed to the annular bottom plate; a plurality of evenly distributed openings are arranged on the annular bottom plate; a plurality of baffles are arranged above the annular bottom plate; the baffles can block part of the openings; and the baffles can make circular motion around the center of the annular bottom plate.

2. The rotary slow cooling spinneret according to claim 1, characterized in that: A heating wire is arranged in the baffle.

3. The rotary slow cooling spinneret according to claim 2, characterized in that: All the baffles are distributed in a circular array around the center of the annular bottom plate; a number of evenly distributed temperature sensors are arranged on the side wall of the first spinneret and the inner side wall of the ring of the second spinneret; and the temperature sensors are electrically connected to the heating wire.

4. The rotary slow cooling spinneret according to claim 3, characterized in that: A motor is arranged on the side wall of the first spinneret; the output shaft of the motor is arranged vertically downward; a driving gear is fixed on the output shaft of the motor; the output shaft of the motor is located on the axis of the driving gear; a driven gear assembly is rotatably fixed on the side wall of the first spinneret; the driven gear assembly includes a driven gear and an annular carrier; the annular carrier is fixed to the bottom of the driven gear; the axis of the annular carrier coincides with the axis of the driven gear; the axis of the driven gear assembly coincides with the center of the first spinneret; The driving gear is meshed and transmission-connected with the driven gear; the baffle is fixed to the outer ring side wall of the annular carrier; and the motor is electrically connected to the temperature sensor.

5. The rotary slow cooling spinneret according to claim 1, characterized in that: A filter screen is arranged in the ventilation duct; the filter screen is located above the baffle; and the filter screen is fixed between the first spinneret and the second spinneret.

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