Nitrogen protection device for polyester fiber spinning equipment

Abstract

The utility model discloses a nitrogen protection device for polyester fiber spinning equipment, which comprises a mounting plate I, a mounting mechanism arranged on the mounting plate I, connecting mechanisms mounted on two sides of the mounting mechanism, a protection mechanism I mounted at one end of each connecting mechanism, and a protection mechanism II arranged on the protection mechanism I and the mounting mechanism, by means of the first protection mechanism arranged on the connecting mechanism, nitrogen protection can be carried out on produced spun yarn, the color of the spun yarn can be lightened conveniently, the too large influence of oxygen on the yarn quality is reduced, meanwhile, the second protection mechanism arranged on the first protection mechanism and the mounting mechanism is beneficial to assisting the first protection mechanism, and the production efficiency is improved. The reaction degree of spinning and oxygen is effectively reduced, the quality meets the requirements of customers, meanwhile, a connecting mechanism is arranged on the mounting mechanism, connection of the first protection mechanism is facilitated, and improvement of the sealing performance of the first protection mechanism during nitrogen conveying is facilitated.

Description

Technical Field

[0001] The utility model relates to a nitrogen protection technology, in particular to a nitrogen protection device for polyester fiber spinning equipment. Background Art

[0002] Spinning is an important process for manufacturing chemical fibers, also known as chemical fiber forming. It involves the process of converting polymer compounds into fibers, mainly solution spinning and melt spinning. Solution spinning is to dissolve the polymer compound in an appropriate solvent to form a spinning solution of suitable concentration, and then spit it out through a fine hole into different chemical atmospheres. The polymer precipitates into solid filaments, and the finished fiber can be obtained after subsequent treatment. Melt spinning is to use the melt of the polymer compound to process chemical fibers. The polyester slices are heated and sheared to a molten state by a screw extruder. The molten polymer passes through the spinneret assembly to form a thin stream, which is quickly condensed into solidified spinning fibers by side blowing or ring blowing. The processed fiber spinning is divided into multiple bundles by the filament separation mechanism, and then merged into a silk thread by the wire guide mechanism. The silk thread is pulled and guided by the drafting mechanism to control the diameter and physical properties of the silk thread. Finally, the silk thread is rolled into a round roll by the winding mechanism for subsequent packaging and use. These steps combine chemical engineering, mechanical processes and materials science to ensure the production of chemical fibers that meet the requirements and are widely used in textiles, industrial materials and advanced technology fields.

[0003] However, in the process of the melt stream descending to the side blowing or ring blowing, the melt is still at a very high temperature when it is ejected from the spinneret assembly, and it is very easy to react with oxygen in the air. The reaction with a small amount of oxygen will only slightly change the quality of the wire, but the contact and reaction with a large amount of oxygen will greatly affect the quality of the wire and produce defective products.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a nitrogen protection device for polyester fiber spinning equipment to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A nitrogen protection device for polyester fiber spinning equipment comprises a first mounting plate, a mounting mechanism is arranged on the first mounting plate, and connecting mechanisms are arranged on both sides of the mounting mechanism;

[0008] A protection mechanism 1 is installed at one end of the connecting mechanism, and a protection mechanism 2 is arranged on the protection mechanism 1 and the installation mechanism.

[0009] Furthermore, the mounting mechanism includes a mounting plate 2 arranged above the mounting plate 1, a thermal insulation barrel is installed below the mounting plate 1, a plurality of thermal insulation barrel slide rods are arranged on the thermal insulation barrel and the mounting plate 1, and mounting grooves equidistantly distributed are opened on the thermal insulation barrel and the mounting plate 2 and the mounting plate 1.

[0010] Furthermore, the connecting mechanism includes multiple intermediate connecting pipes passing through both sides of the mounting plate, one end of the intermediate connecting pipe is equipped with a straight stainless steel pipe joint, and the other end of the intermediate connecting pipe is equipped with a right-angle stainless steel pipe joint, and the right-angle stainless steel pipe joint is located inside the mounting groove.

[0011] Furthermore, the protection mechanism includes an upper nitrogen spray ring and a lower nitrogen spray ring respectively connected to one end of a right-angle stainless steel pipe joint, the spray holes of the upper nitrogen spray ring and the lower nitrogen spray ring are installed with stainless steel wire mesh, a hoop is arranged on the stainless steel wire mesh, and bolts are installed on the hoop.

[0012] Furthermore, the second protection mechanism includes a post-heater arranged above the second mounting plate, the interior of the post-heater is connected to the upper nitrogen spray ring and the lower nitrogen spray ring, a spinning box is arranged above the post-heater, a plurality of placement grooves are opened on the spinning box, spinning equipment is installed on the inner wall of the placement groove, the spinning equipment and the upper nitrogen spray ring and the lower nitrogen spray ring are located inside the spinning box, and the bottom of the spinning equipment is connected to the top of the upper nitrogen spray ring.

[0013] Furthermore, a plurality of limiting plates are fixedly connected to the spray rings of the upper nitrogen spray ring and the lower nitrogen spray ring, and limiting screws are threadedly connected to the limiting plates, and one end of the limiting screws is threadedly connected to the inner wall of the rear heater.

[0014] Furthermore, auxiliary holes distributed at equal distances are provided on the upper nitrogen spray ring, the lower nitrogen spray ring and the ring hoop.

[0015] The beneficial effects of the utility model are:

[0016] (1) By setting the protection mechanism 1 in the connecting mechanism, the produced spun yarn can be protected by nitrogen, which is convenient for lightening the color of the spun yarn and reducing the excessive impact of oxygen on the quality of the yarn. At the same time, the protection mechanism 2 set between the protection mechanism 1 and the installation mechanism is helpful to assist the protection mechanism 1, effectively reducing the degree of reaction between the spun yarn and oxygen, and the quality meets customer requirements.

[0017] (2) The installation mechanism provided on the installation plate 1 facilitates the installation and fixing of the nitrogen protection device of the polyester fiber spinning equipment, which is beneficial to improving the stability of the nitrogen protection device of the polyester fiber spinning equipment. At the same time, the connecting mechanism provided on the installation mechanism facilitates the connection of the protection mechanism 1, which is beneficial to improving the sealing performance of the protection mechanism 1 when transporting nitrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a second protection mechanism of a nitrogen protection device for polyester fiber spinning equipment according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation mechanism structure of a nitrogen protection device for polyester fiber spinning equipment according to an embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of a connection mechanism and a protection mechanism of a nitrogen protection device for polyester fiber spinning equipment according to an embodiment of the utility model;

[0022] Figure 4 This is a schematic structural diagram of a mounting plate of a nitrogen protection device for polyester fiber spinning equipment according to an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of a lower nitrogen spray ring of a nitrogen protection device for polyester fiber spinning equipment according to an embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of the structure of an upper nitrogen spray ring of a nitrogen protection device for polyester fiber spinning equipment according to an embodiment of the utility model;

[0025] Figure 7 It is a schematic diagram of a hoop structure of a nitrogen protection device for polyester fiber spinning equipment according to an embodiment of the utility model.

[0026] In the figure:

[0027] 1. Mounting plate one; 2. Mounting mechanism; 201. Mounting plate two; 202. Heat-breaking barrel; 203. Heat-breaking barrel slide rod; 204. Mounting groove; 3. Connecting mechanism; 301. Intermediate connecting pipe; 302. Straight stainless steel pipe joint; 303. Right-angle stainless steel pipe joint; 4. Protective mechanism one; 401. Upper nitrogen spray ring; 402. Lower nitrogen spray ring; 403. Stainless steel wire mesh; 404. Hoop; 405. Bolt; 5. Protective mechanism two; 501. Post heater; 502. Spinning box; 503. Placement groove; 504. Spinning equipment; 6. Limiting plate; 7. Limiting screw; 8. Auxiliary hole. DETAILED DESCRIPTION

[0028] 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.

[0029] According to an embodiment of the utility model, a nitrogen protection device for polyester fiber spinning equipment is provided.

[0030] Embodiment 1:

[0031] See also Figure 1-Figure 7 A nitrogen protection device for polyester fiber spinning equipment comprises a mounting plate 1, a mounting mechanism 2 is arranged on the mounting plate 1, the mounting mechanism 2 comprises a mounting plate 201 arranged above the mounting plate 1, a heat-breaking barrel 202 is arranged below the mounting plate 1, a plurality of heat-breaking barrel slide bars 203 are arranged on the heat-breaking barrel 202 and the mounting plate 1, the number of the heat-breaking barrel slide bars 203 is five, and the heat-breaking barrel 202, the mounting plate 201, and the mounting plate 1 are provided with mounting grooves 204 distributed at equal distances, the number of the mounting grooves 204 is four;

[0032] Connecting mechanisms 3 are installed on both sides of the mounting mechanism 2. The connecting mechanisms 3 include multiple intermediate connecting pipes 301 penetrating through both sides of the mounting plate 1. The total number of the intermediate connecting pipes 301 is four, and each four forms a group. An opening is opened on the mounting plate 1, and the intermediate connecting pipes 301 penetrate the inner wall of the opening. A straight-through stainless steel pipe joint 302 is installed at one end of the intermediate connecting pipe 301. The straight-through stainless steel pipe joint 302 is connected to an external nitrogen storage and heating device in actual use. A right-angle stainless steel pipe joint 303 is installed at the other end of the intermediate connecting pipe 301, and the right-angle stainless steel pipe joint 303 is located inside the mounting groove 204.

[0033] In actual use, the mounting mechanism 2 arranged on the mounting plate 1 facilitates the installation and fixation of the nitrogen protection device of the polyester fiber spinning equipment. At the same time, the connecting mechanism 3 arranged on the mounting mechanism 2 facilitates the connection of the nitrogen protection device of the polyester fiber spinning equipment, which is beneficial to improving the sealing performance of the nitrogen protection device of the polyester fiber spinning equipment when transporting nitrogen.

[0034] Embodiment 2:

[0035] See also Figure 1-Figure 7A nitrogen protection device for polyester fiber spinning equipment, comprising a protection mechanism 4 installed at one end of a connecting mechanism 3, the protection mechanism 4 comprising an upper nitrogen spray ring 401 and a lower nitrogen spray ring 402 respectively connected at one end of a right-angle stainless steel pipe joint 303, the upper nitrogen spray ring 401 and the lower nitrogen spray ring 402 can be respectively adjusted by an external valve in actual use. The flow rate and flow rate of the upper nitrogen spray ring 401 and the lower nitrogen spray ring 402 are controlled to reduce the disturbance of the nitrogen gas flow to the nascent fiber;

[0036] Auxiliary holes 8 are arranged at equal distances on the upper nitrogen spray ring 401, the lower nitrogen spray ring 402 and the hoop 404. A plurality of limiting plates 6 are fixedly connected to the upper nitrogen spray ring 401 and the lower nitrogen spray ring 402. The number of limiting plates 6 is four. A limiting screw 7 is threadedly connected to the limiting plate 6. One end of the limiting screw 7 is threadedly connected to the inner wall of the rear heater 501.

[0037] A threaded hole is provided on the limiting plate 6, and a limiting screw 7 is threadedly connected to the threaded hole. The limiting screw 7 and the inner wall of the rear heater 501 are used to limit the movement of the upper nitrogen spray ring 401 and the lower nitrogen spray ring 402. The spray holes of the upper nitrogen spray ring 401 and the lower nitrogen spray ring 402 are installed with a stainless steel wire mesh 403, and the stainless steel wire mesh 403 adopts a high mesh number. A hoop 404 is provided on the stainless steel wire mesh 403, and a bolt 405 is installed on the hoop 404;

[0038] A protection mechanism 2 5 is arranged on the protection mechanism 1 4 and the mounting mechanism 2, and the protection mechanism 2 5 includes a post-heater 501 arranged above the mounting plate 201, and the interior of the post-heater 501 is connected to the upper nitrogen spray ring 401 and the lower nitrogen spray ring 402. A spinning box 502 is arranged above the post-heater 501, and a plurality of placement slots 503 are opened on the spinning box 502. The number of the placement slots 503 is four, and a spinning device 504 is installed on the inner wall of the placement slot 503. The spinning device 504 and the post-heater 501 are electrically connected with a controller and an external power supply. The spinning device 504 and the upper nitrogen spray ring 401 and the lower nitrogen spray ring 402 are located inside the spinning box 502, and the bottom of the spinning device 504 is connected to the top of the upper nitrogen spray ring 401.

[0039] In actual use, the protective mechanism 1-4 arranged on the connecting mechanism 3 can be used to protect the produced spun yarn with nitrogen, which is convenient for lightening the color of the spun yarn and reducing the excessive impact of oxygen on the quality of the yarn. At the same time, the protective mechanism 2-5 arranged between the protective mechanism 1-4 and the mounting mechanism 2 is beneficial to assist the protective mechanism 1-4 and effectively reduce the degree of reaction between the spun yarn and oxygen.

[0040] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0041] In summary, with the aid of the above-mentioned technical scheme of the utility model, during installation, the mounting mechanism 2 provided on the mounting plate 1 is convenient for installing and fixing the nitrogen protection device of the polyester fiber spinning equipment, and then the connecting mechanism 3 provided on the mounting mechanism 2 is convenient for connecting the upper nitrogen spray ring 401 and the lower nitrogen spray ring 402, which is beneficial to improve the sealing performance of the upper nitrogen spray ring 401 and the lower nitrogen spray ring 402 when transporting nitrogen. When in use, the upper nitrogen spray ring 401 and the lower nitrogen spray ring 402 are connected to the pipeline of the external nitrogen storage and heating device through the straight-through stainless steel pipe joint 302, and the spray holes of the upper nitrogen spray ring 401 and the lower nitrogen spray ring 402 are covered with a stainless steel wire mesh 403, which improves the uniformity and stability of the nitrogen spray, and can lighten the color of the spinning produced by the cooperation between the spinning equipment 504 and the post-heater 501, effectively reducing the degree of reaction between the spinning and oxygen, and the quality meets customer requirements.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A nitrogen protection device for polyester fiber spinning equipment, characterized in that: It comprises a mounting plate (1), on which a mounting mechanism (2) is arranged, and connecting mechanisms (3) are installed on both sides of the mounting mechanism (2); A protection mechanism 1 (4) is installed at one end of the connecting mechanism (3), and a protection mechanism 2 (5) is arranged on the protection mechanism 1 (4) and the mounting mechanism (2); The protection mechanism 1 (4) comprises an upper nitrogen spray ring (401) and a lower nitrogen spray ring (402) respectively connected to one end of a right-angle stainless steel pipe joint (303), the spray holes of the upper nitrogen spray ring (401) and the lower nitrogen spray ring (402) are installed with a stainless steel wire mesh (403), a hoop (404) is arranged on the stainless steel wire mesh (403), and a bolt (405) is installed on the hoop (404).

2. A nitrogen protection device for polyester fiber spinning equipment according to claim 1, characterized in that: The mounting mechanism (2) comprises a second mounting plate (201) arranged above the first mounting plate (1); a heat-insulating barrel (202) is installed below the first mounting plate (1); a plurality of heat-insulating barrel sliding rods (203) are arranged on the first mounting plate (202) and the first mounting plate (1); and mounting grooves (204) distributed at equal distances are provided on the second mounting plate (201) and the first mounting plate (1).

3. A nitrogen protection device for polyester fiber spinning equipment according to claim 2, characterized in that: The connection mechanism (3) comprises a plurality of intermediate connection pipes (301) penetrating through both sides of the mounting plate (1); a straight stainless steel pipe joint (302) is installed at one end of the intermediate connection pipe (301); a right-angle stainless steel pipe joint (303) is installed at the other end of the intermediate connection pipe (301); and the right-angle stainless steel pipe joint (303) is located inside the mounting groove (204).

4. A nitrogen protection device for polyester fiber spinning equipment according to claim 3, characterized in that: The second protection mechanism (5) comprises a post-heater (501) arranged above the second mounting plate (201); the interior of the post-heater (501) is connected to an upper nitrogen spray ring (401) and a lower nitrogen spray ring (402); a spinning box (502) is arranged above the post-heater (501); a plurality of placement grooves (503) are provided on the spinning box (502); a spinning device (504) is installed on the inner wall of the placement groove (503); the spinning device (504) and the upper nitrogen spray ring (401) and the lower nitrogen spray ring (402) are located inside the spinning box (502); the lower part of the spinning device (504) is connected to the upper part of the upper nitrogen spray ring (401).

5. A nitrogen protection device for polyester fiber spinning equipment according to claim 4, characterized in that: A plurality of limiting plates (6) are fixedly connected to the spray rings of the upper nitrogen spray ring (401) and the lower nitrogen spray ring (402), and a limiting screw (7) is threadedly connected to the limiting plate (6), and one end of the limiting screw (7) is threadedly connected to the inner wall of the post-heater (501).

6. A nitrogen protection device for polyester fiber spinning equipment according to claim 5, characterized in that: The upper nitrogen spray ring (401), the lower nitrogen spray ring (402) and the hoop (404) are provided with auxiliary holes (8) distributed at equal distances.

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