Spinneret plate for producing flame-retardant polyester filaments

Abstract

The utility model discloses a spinneret plate for producing flame-retardant polyester filaments. The spinneret plate comprises a shell, the spinneret plate body is fixed to the lower end of the shell, and spinneret orifices are formed in the surface of the spinneret plate body in a penetrating mode; compared with the prior art, the spinneret plate has the advantages that in the prior art, in the long-term use process of the spinneret plate, the spinneret orifices are prone to being blocked due to the viscidity of high polymer melt, the cleaning process is tedious, manual operation is often needed, the labor intensity of operators is increased, and the production efficiency is possibly affected. Meanwhile, if the cleaning device is arranged improperly, normal flowing of the high polymer melt can be disturbed possibly. According to the spinneret orifice dredging device, the spinneret orifices are efficiently and conveniently dredged under the condition that normal flowing of high polymer melt is not affected through ingenious matching of the dredging microneedles and the partition plates and convenient arrangement of the driving mechanism, the production efficiency and the fiber quality are remarkably improved, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a spinneret technical field especially is related to a flame -retardant polyester filament production with spinneret. BACKGROUND

[0002] Spinneret is the key component in chemical fiber spinning equipment, its function is to melt the high polymer even extrusion into filament. In the process of chemical fiber production, the performance of spinneret directly influences the quality and output of fiber. However, since the high polymer melt is easy to block the spinneret hole in the extrusion process, therefore, the anti-blocking design of spinneret is particularly important.

[0003] The prior art such as the China utility model patent with the application number 202122587441.4 a spinneret with anti-blocking assembly, although solve the problem of blocking to a certain extent, but when cleaning the blockage in actual, still need to rely on manual operation, this undoubtedly increases the labor intensity of operating personnel, and also can lead to the decline of production efficiency on the production line. In addition, the dredging device in the patent is arranged on the upper surface of the spinneret, when using, will inevitably interfere with the normal flow of high polymer melt. In addition, high polymer melt has very strong viscosity, easy to adhere to the dredging device, bring greater difficulty to the subsequent cleaning work.

[0004] Therefore, although this spinneret with anti-blocking assembly has some innovation to a certain extent, but still has many places to be improved in practical application. UTILITY MODEL CONTENTS

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a flame -retardant polyester filament production with spinneret to solve the above problems.

[0006] In order to achieve the above purpose, the utility model discloses a flame -retardant polyester filament production with spinneret, comprising:

[0007] The shell is fixed on the lower end of the shell, and the surface of the spinneret body is provided with a spinneret hole;

[0008] The spinneret body is fixed on the lower end of the shell, and the surface of the spinneret body is provided with a spinneret hole;

[0009] The high polymer melt joint is fixed on the side of the shell;

[0010] The driving plate is vertically movably arranged in the shell, and the lower surface of the driving plate is fixed with the dredging microneedle corresponding to the spinneret hole;

[0011] The spacer plate is vertically movably arranged in the shell, and the spacer plate is arranged between the driving plate and the upper surface of the spinneret body, the spacer plate is provided with a perforation, and the lower end of the dredging microneedle is slidably arranged in the perforation;

[0012] The spring is connected between the partition plate and the driving plate, the inner wall of the shell is fixed with a limiting block above the partition plate, the diameter of the driving plate is smaller than that of the partition plate, the surface of the partition plate is in contact with the limiting block, the partition plate, the spinneret body and the part of the shell between the partition plate and the spinneret body form a liquid injection cavity, and the polymer melt joint is arranged on the side of the liquid injection cavity.

[0013] Preferably, the shell is fixed with a telescopic cylinder, and the telescopic end of the telescopic cylinder is fixedly connected with the driving plate through a fixing frame.

[0014] Preferably, the lower surface of the driving plate is fixed with a rubber plate, the lower surface of the rubber plate is fixed with a fixed plate, the upper end of the dredging microneedle is fixed with the fixed plate, and the fixed plate is fixed with a vibration exciter.

[0015] Preferably, a rubber sleeve is fixed in the perforation, and the dredging microneedle is in sliding contact with the inner wall of the rubber sleeve.

[0016] Preferably, the shell is fixed with a water inlet pipe on the side of the liquid injection cavity.

[0017] Preferably, the upper surface of the spinneret body is integrally formed with an external thread, and the external thread is in threaded connection with the bottom inner wall of the shell.

[0018] Preferably, the surface of the partition plate is fixed with a guide rod, and the upper end of the guide rod is in sliding connection with the driving plate.

[0019] Preferably, the upper end of the guide rod penetrates through the driving plate, and the upper end of the guide rod is fixed with a stop block.

[0020] Compared with the prior art, the present application has the following advantages: in the prior art, the spinneret plate is easily blocked by the viscosity of the polymer melt during long-term use, and the cleaning process is complicated, often requiring manual operation, which not only increases the labor intensity of the operator, but also may affect the production efficiency. At the same time, improper setting of the cleaning device may also interfere with the normal flow of the polymer melt. The present application realizes efficient and convenient dredging of the spinneret hole without affecting the normal flow of the polymer melt through the ingenious cooperation of the dredging microneedle and the partition plate and the convenient driving mechanism, significantly improves the production efficiency and fiber quality, and reduces the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the exploded structure of this utility model.

[0023] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0024] Figure 3 This is a cross-sectional structural diagram of the present invention during the unblocking process.

[0025] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0026] Figure 5 This is a cross-sectional structural diagram of the present invention during the spinning process.

[0027] In the diagram: 1. Outer shell; 2. Spinneret; 3. Spinneret orifice; 4. Polymer melt connector; 5. Drive plate; 6. Unblocking microneedle; 7. Separator plate; 8. Spring; 9. Limiting block; 100. Injection chamber; 10. Telescopic cylinder; 11. Fixing frame; 12. Rubber plate; 13. Fixing plate; 14. Vibrator; 15. Rubber sleeve; 16. Water inlet pipe; 17. External thread; 18. Guide rod; 19. Stop block. Detailed Implementation

[0028] The following is in conjunction with the appendix Figures 1-5 The specific embodiments of this utility model will be described in further detail.

[0029] like Figures 1-5 As shown, this utility model discloses a spinneret for producing flame-retardant polyester filaments, comprising:

[0030] Outer shell 1;

[0031] The spinneret 2 is fixed to the lower end of the outer shell 1, and the surface of the spinneret 2 is provided with spinneret holes 3.

[0032] Polymer melt connector 4 is fixed to the side of the housing 1 and is used to feed polymer melt into the interior of the housing 1;

[0033] The drive plate 5 is vertically and movably installed inside the housing 1, and the lower surface of the drive plate 5 is fixed with a cleaning micro needle 6 corresponding to the spinneret hole 3. By setting the cleaning micro needle 6, when it is necessary to clean the spinneret hole 3, the drive plate 5 can drive the cleaning micro needle 6 to move downward and enter the spinneret hole 3 to play a role in unblocking.

[0034] The partition plate 7 is vertically and movably installed inside the outer shell, and the partition plate 7 is located between the upper surface of the drive plate 5 and the spinneret 2. The partition plate 7 has a through hole, and the lower end of the unblocking micro needle 6 is slidably installed in the through hole. During spinnereting, the partition plate 7 and the drive plate 5 are both located at the upper inside of the outer shell 1. The lower end of the unblocking micro needle 6 can be hidden in the through hole of the partition plate 7. The partition plate 7 isolates the drive plate 5 and the unblocking micro needle 6 at the upper inside of the outer shell 1.

[0035] A spring 8 is connected between the partition plate 7 and the drive plate 5. A limiting block 9 is fixed on the inner wall of the outer shell 1 above the partition plate 7. The diameter of the drive plate 5 is smaller than the diameter of the partition plate 7, meaning that the movement of the drive plate 5 is not restricted by the limiting block 9. When the surface of the partition plate 7 slides to contact the limiting block 9, the partition plate 7, the spinneret 2, and the portion of the outer shell 1 located between the partition plate 7 and the spinneret 2 constitute the injection cavity 100. The polymer melt connector 4 is provided on the side of the injection cavity 100.

[0036] The above structure will be explained in detail below.

[0037] When filament spinning is required, the viscous polymer melt enters the injection chamber 100 through the polymer melt connector 4, and then becomes a fine stream with a specific cross-sectional shape through the spinneret holes 3 of the spinneret plate 2. These fine streams are then solidified by a solidification medium (such as air or a solidification bath) to form filaments. When the spinneret holes 3 need cleaning, the drive plate 5 moves downward, driving the partition plate 7 downward. The partition plate 7 stops moving when it contacts the surface of the spinneret plate 2. Then the drive plate 5 continues to move downward, allowing the unblocking microneedles 6 to be inserted into the spinneret holes 3 for unblocking. After unblocking, the drive plate 5 moves upward, pulling the partition plate 7 upward under the action of the spring 8. The partition plate 7 stops moving when it encounters the limiting block 9. At this time, the lower end of the unblocking microneedles 6 enters the perforation of the partition plate 7 for concealment.

[0038] In some embodiments, the outer casing 1 is fixed with a telescopic cylinder 10, and the telescopic end of the telescopic cylinder 10 is fixedly connected to the drive plate 5 through a fixing bracket 11. The telescopic cylinder 10 facilitates the drive plate 5 to move up and down.

[0039] like Figure 4 and Figure 5 As shown, a rubber plate 12 is fixed to the lower surface of the drive plate 5, and a fixing plate 13 is fixed to the lower surface of the rubber plate 12. The upper end of the unblocking microneedle 6 is fixed to the fixing plate 13, and a vibrator 14 is fixed to the fixing plate 13. After the unblocking microneedle 6 is inserted into the spinneret hole 3, the vibrator 14 is started to drive the unblocking microneedle 6 to vibrate at high frequency in the spinneret hole 3. Thus, the unblocking microneedle 6 vibrates against the inner wall of the spinneret hole 3 when it vibrates. In this way, by moving the drive plate 5 up and down, the unblocking microneedle 6 can move up and down in the spinneret hole 3 while vibrating at high frequency, which can effectively scrape away the blockage in the spinneret hole 3.

[0040] In some embodiments, the perforation is fixed with a rubber sleeve 15, and the dredging microneedle 6 is in sliding contact with the inner wall of the rubber sleeve 15. The rubber sleeve 15 is arranged to play a sealing role and enable the dredging microneedle 6 to vibrate under the action of the exciter 14.

[0041] In some embodiments, the water inlet pipe 16 is fixed on the side of the shell 1 located at the liquid injection cavity 100. When the dredging microneedle 6 is used to dredge the spinneret hole 3, water can be supplied to the inside of the shell 1 through the water inlet pipe 16, and the dredging effect is improved in combination with the flushing action of the water flow.

[0042] In order to facilitate more careful cleaning of the spinneret plate body 2, an external thread 17 is integrally formed on the upper surface of the spinneret plate body 2. The external thread 17 is threadedly connected with the bottom inner wall of the shell 1, so that the spinneret plate body 2 can also be disassembled for cleaning.

[0043] As shown in Figure 3 and Figure 4 The surface of the spacing plate 7 is fixed with a guide rod 18, the upper end of the guide rod 18 is in sliding connection with the driving plate 5, the upper end of the guide rod 18 penetrates through the driving plate 5, and the upper end of the guide rod 18 is fixed with a stop block 19. When the driving plate 5 moves upward, the guide rod 18 can generate an upward pulling force on the spacing plate 7, which plays a better positioning role on the spacing plate 7.

[0044] In summary, the present application aims to provide a flame-retardant polyester filament production spinneret. Through the optimized structure design, especially the cooperation of the dredging microneedle 6 and the spacing plate 7, and the convenient driving mode, the spinneret hole 3 can be easily dredged when needed, while ensuring that the normal flow of the high polymer melt is not disturbed during the spinning process, thereby improving the production efficiency and fiber quality and reducing the maintenance cost.

[0045] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A spinneret for producing flame-retardant polyester filaments, characterized in that Include: The shell (1); Spinneret body (2), fixed in the lower end of the shell (1), and the surface of the spinneret body (2) is provided with spinneret hole (3); Polymer melt joint (4), fixed in the side of the shell (1); Drive plate (5), vertically movable in the shell (1), and the lower surface of the drive plate (5) is fixed with the corresponding through micro-needle (6) of the spinneret hole (3); The spacer plate (7) is vertically movable in the shell, and the spacer plate (7) is arranged between the drive plate (5) and the upper surface of the spinneret body (2), the spacer plate (7) is provided with a through hole, and the lower end of the through micro-needle (6) is slidably arranged in the through hole; Wherein, the spacer plate (7) and the drive plate (5) are connected with the spring (8), the inner wall of the shell (1) is located above the spacer plate (7) and is fixed with the limiting block (9), the diameter of the drive plate (5) is smaller than the diameter of the spacer plate (7), when the surface of the spacer plate (7) slides to contact with the limiting block (9), the spacer plate (7), the spinneret body (2) and the part of the shell (1) between the spacer plate (7) and the spinneret body (2) constitute the liquid injection cavity (100), and the polymer melt joint (4) is arranged on the side of the liquid injection cavity (100).

2. A spinneret for producing flame retardant polyester filaments according to claim 1, characterized in that The shell (1) is fixed with a telescopic cylinder (10), and the telescopic end of the telescopic cylinder (10) is fixedly connected with the drive plate (5) through a fixed frame (11).

3. A spinneret for producing flame retardant polyester filaments according to claim 1, characterized in that The lower surface of the drive plate (5) is fixed with a rubber plate (12), the lower surface of the rubber plate (12) is fixed with a fixed plate (13), the upper end of the through micro-needle (6) is fixed with the fixed plate (13), and the fixed plate (13) is fixed with a vibration exciter (14).

4. A spinneret for producing flame-retardant polyester filaments according to claim 3, characterized in that The through hole is fixed with a rubber sleeve (15), and the through micro-needle (6) and the inner wall of the rubber sleeve (15) are in sliding contact.

5. A spinneret for producing flame retardant polyester filaments according to claim 1, characterized in that The shell (1) is located on the side of the liquid injection cavity (100) and is fixed with a water inlet pipe (16).

6. A spinneret for producing flame retardant polyester filaments according to claim 1, characterized in that The upper surface of the spinneret body (2) is integrally formed with an external thread (17), and the external thread (17) is threadedly connected with the bottom inner wall of the shell (1).

7. A spinneret for producing flame retardant polyester filaments according to claim 1, characterized in that The surface of the spacer plate (7) is fixed with a guide rod (18), and the upper end of the guide rod (18) is slidably connected with the drive plate (5).

8. A spinneret for producing flame retardant polyester filaments according to claim 7, characterized in that The upper end of the guide rod (18) penetrates the drive plate (5), and the upper end of the guide rod (18) is fixed with a stop block (19).

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