High-precision spinneret plate for producing super-soft polyester

Abstract

The utility model relates to the field of textile machinery, and discloses a high-precision spinneret plate for producing super-soft polyester, which comprises a spinneret base plate, a fixing shaft is arranged at the axis of one side of the spinneret base plate along the axial direction, a spinneret diameter control plate and a cover ring are coaxially sleeved on the fixing shaft, the spinneret diameter control plate is clamped between the spinneret base plate and the cover ring, and the cover ring is sleeved on the fixing shaft. The spinneret diameter control plate is in running fit with the fixing shaft, a plurality of spinneret holes are correspondingly formed in the spinneret diameter control plate and the spinneret base plate, and a driving mechanism used for driving the spinneret diameter control plate to rotate in a reciprocating mode is arranged between the spinneret base plate and the spinneret diameter control plate. The spinneret plate has the advantages that the precision of the spinneret plate is improved, and meanwhile the replacement cost of the spinneret plate is reduced.

Description

Technical Field

[0001] The present application relates to the field of textile machinery, and in particular to a high-precision spinneret for producing ultra-soft polyester. Background Art

[0002] In chemical fiber production technology, polyester fiber is widely used in the textile industry due to its excellent performance. As a key component of the spinning machine, the spinneret is used to transform the viscous polymer melt or solution into a thin stream with a specific cross-section through micropores, and solidify it through a coagulation medium such as air or a coagulation bath to form polyester fiber filaments. The quality of the spinneret directly affects the quality and output of polyester fiber. With the continuous expansion of the ultra-soft polyester market, higher requirements are placed on the precision and durability of the spinneret.

[0003] The existing spinnerets have pure round spinneret holes and pure special-shaped spinneret holes. The fibers produced by the circular holes have a solid structure inside, are closely arranged, and lack hydrophilic structures between molecules, so the moisture rebate rate is very small, the hygroscopicity is poor, and the gloss is poor; while the special-shaped fibers have good gloss and good softness, but the accuracy requirements for the special-shaped spinneret holes are high, and once wear occurs, the replacement cost is too high. Utility Model Content

[0004] In order to improve the precision of the spinneret and reduce the replacement cost of the spinneret at the same time, the present application provides a high-precision spinneret for producing super-soft polyester.

[0005] The high-precision spinneret for producing ultra-soft polyester provided in this application adopts the following technical solution:

[0006] A high-precision spinneret for producing super-soft polyester comprises a spinneret base plate, a fixed shaft is axially arranged at the axis center of one side of the spinneret base plate, a spinneret diameter control plate and a cover ring are coaxially sleeved on the fixed shaft, the spinneret diameter control plate is clamped between the spinneret base plate and the cover ring, the spinneret diameter control plate is rotatably matched with the fixed shaft, and a plurality of spinneret holes are correspondingly opened on the spinneret diameter control plate and the spinneret base plate, and a driving mechanism for driving the spinneret diameter control plate to reciprocate is arranged between the spinneret base plate and the spinneret diameter control plate.

[0007] By adopting the above technical solution, the staff can sequentially sleeve the spinneret diameter control plate and the cover ring on the fixed shaft to realize the rapid installation of the spinneret, and then drive the spinneret diameter control plate to reciprocate around the fixed shaft in close contact with the spinneret base plate through the driving mechanism. At this time, the melt is ejected from the overlapping pores of the corresponding spinneret holes on the spinneret base plate and the spinneret diameter control plate, and the cross section of the polyester fiber ejected from the spinneret changes continuously during the reciprocating rotation of the spinneret diameter control plate, thereby increasing the degree of specialization of the polyester fiber and obtaining a more unique and diverse fiber morphology. By setting the spinneret as a dynamic composite spinneret, the ejected polyester fiber has good elasticity to achieve a soft effect. If the high-precision spinneret is partially worn, the parts can be quickly disassembled and replaced, which also reduces the cost of replacing the spinneret.

[0008] Optionally, the driving mechanism includes a gear ring mounted on the outer ring of the spinneret diameter control plate, an incomplete gear rotatably arranged on the spinneret base plate and meshing with the gear ring, and a driving member, wherein two incomplete gears are arranged along the circumference of the outer ring of the spinneret diameter control plate, and the rotation directions of the two incomplete gears are opposite. The driving member is used to drive the two incomplete gears to rotate synchronously, and when one of the incomplete gears meshes with the gear ring and drives the gear ring to rotate, the tooth tip of the other incomplete gear rotates to a position away from the gear ring.

[0009] By adopting the above technical solution, the driving member drives two incomplete gears to rotate synchronously, one of the incomplete gears is meshed with the ring gear and pushes the ring gear to rotate a certain angle. During the rotation process, the cross section of the ejected polyester fiber is constantly changed during the rotation of the spinneret diameter control plate, until the ring gear rotates to the limit position where the cross section of the polyester fiber is as small as possible but will not break, the other incomplete gear rotates to mesh with the ring gear and pushes the ring gear to rotate in the opposite direction to the limit position, thereby performing reciprocating rotation. While improving the profile of the polyester fiber, the cross section of the ejected polyester fiber is made more complex, and more concave-convex structures are formed on the surface of the polyester fiber, which helps to improve the expansion and contraction performance of the polyester fiber.

[0010] Optionally, a placement groove is provided on the spinneret substrate near the outer ring of the spinneret diameter control plate, and the rotating shafts of the two incomplete gears are parallel and rotatably arranged on the bottom wall of the placement groove. The driving member includes a driven gear sleeved on the rotating shafts of the two incomplete gears, a driving gear and a transmission gear meshing between the two driven gears, and a micro motor driving the driving gear to rotate, and the driven gear, the driving gear, the transmission gear and the driven gear are meshed in sequence.

[0011] By adopting the above technical solution, the micro motor is started, which drives the driven gear to rotate, thereby driving the transmission gear meshed with and the driven gear to rotate simultaneously. The rotation of the transmission gear drives the other driven gear meshed with and rotates synchronously, thereby achieving synchronous reverse rotation of two incomplete gears.

[0012] Optionally, the spinneret substrate is provided with several arc grooves corresponding to the reciprocating range of the spinneret diameter control plate toward one side of the spinneret diameter control plate, and a limiting rod is slid in each of the arc grooves, and a limiting rod is arranged on the spinneret diameter control plate.

[0013] By adopting the above-mentioned technical solution, the limiting rod slides in the arc groove and slides between the arc grooves to assist in limiting the limit position of the rotation of the ring gear, further improving the quality of the finished polyester fiber sprayed through the spinneret.

[0014] Optionally, the spinneret substrate is connected to the cover ring and is provided with several bolt counters for installation, and several card slots distributed in a circular array are provided at the outer edge of the corresponding cover ring on the spinneret substrate, and each of the clip slots is inserted, and several card blocks are arranged on the cover ring.

[0015] By adopting the above technical solution, the plug-in cooperation between the clamping block and the clamping groove improves the docking accuracy between the cover ring and the spinneret substrate, and improves the installation efficiency of the cover ring on the spinneret substrate.

[0016] Optionally, the opposite sides of the spinneret diameter controlling plate and the spinneret base plate are coated with a wear-resistant coating.

[0017] By adopting the above technical scheme, a wear-resistant coating is applied on the opposite sides of the spinneret diameter control plate and the spinneret base plate, thereby reducing the possibility of damage between the spinneret diameter control plate and the spinneret base plate due to friction, and reducing the possibility of increasing the gap between the spinneret diameter control plate and the spinneret base plate, thereby reducing the possibility of fiber melt flowing into the gap between the spinneret diameter control plate and the spinneret base plate and affecting the quality of the final polyester fiber product.

[0018] Optionally, the inner side wall of the cover ring is provided with a fastener for abutting the spinneret diameter control plate on the spinneret substrate. The cover ring presses the side wall of the spinneret diameter control plate and is coaxially opened with an annular groove. The fastener includes a tightening ring arranged in the ring groove slid in the axial direction of the fixed axis and a pressing spring abutting between the tightening ring and the inner bottom wall of the ring groove, and the tightening ring is in contact with the side wall of the spinneret diameter control plate.

[0019] By adopting the above technical solution, the compression spring generates a thrust towards the side wall of the spinneret diameter control plate to the pressing ring, causing the pressing ring to contact the side wall of the spinneret diameter control plate, further reducing the possibility of gap between the spinneret diameter control plate and the spinneret substrate.

[0020] Optionally, a plurality of balls are embedded on the side wall of the clamping ring facing the spinneret diameter control plate.

[0021] By adopting the above technical solution, when the tightening ring presses the spinneret diameter control plate and the spinneret diameter control plate rotates to change the opposite sexity of the injection polyester, the arrangement of several balls can reduce the frictional force generated by rotation between the tightening ring and the spinneret diameter control plate, thereby reducing the possibility of damage caused by friction between the tightening ring and the spinneret diameter control plate.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The staff can sequentially sleeve the spinneret diameter control plate and the cover ring on the fixed shaft to realize the rapid installation of the spinneret, and then drive the spinneret diameter control plate to reciprocate around the fixed shaft in close contact with the spinneret base plate through the driving mechanism. At this time, the melt is ejected from the overlapping pores of the corresponding spinneret holes on the spinneret base plate and the spinneret diameter control plate, and the cross-section of the polyester fiber ejected from the spinneret changes continuously during the reciprocating rotation of the spinneret diameter control plate, thereby increasing the degree of special shape of the polyester fiber and obtaining a more unique and diverse fiber morphology. By setting the spinneret as a dynamic composite spinneret, the ejected polyester fiber has good stretchability to achieve a soft effect. If the high-precision spinneret is partially worn, the parts can be quickly disassembled and replaced, which also reduces the cost of replacing the spinneret.

[0024] 2. Use a driving member to drive two incomplete gears to rotate synchronously, one of which is meshed with the ring gear and pushes the ring gear to rotate a certain angle. During the rotation process, the cross section of the ejected polyester fiber is constantly changing during the rotation of the spinneret diameter control plate, until the ring gear rotates to the limit position where the cross section of the polyester fiber is as small as possible but will not break, the other incomplete gear rotates to mesh with the ring gear and pushes the ring gear to rotate in the opposite direction to the limit position, thereby performing reciprocating rotation. While improving the profile of the polyester fiber, the cross section of the ejected polyester fiber is made more complex, and more concave-convex structures are formed on the surface of the polyester fiber, which helps to improve the expansion and contraction performance of the polyester fiber;

[0025] 3. Start the micro motor, which drives the driven gear to rotate, thereby driving the transmission gear and the driven gear to mesh with it to rotate synchronously. The rotation of the transmission gear drives the other driven gear to mesh with it to rotate synchronously, thereby achieving synchronous reverse rotation of two incomplete gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2It is an exploded schematic diagram showing the positional relationship among the clamping ring, the compression spring and the cover ring in the embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the structure on the spinneret substrate in the embodiment of the present application.

[0029] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0030] Description of reference numerals:

[0031] 1. Spinneret substrate; 11. Fixed shaft; 12. Clamping groove; 13. Placement groove; 14. Arc groove; 2. Spinneret diameter control plate; 21. Spinneret hole; 3. Cover ring; 31. Bolt countersunk hole; 32. Clamping block; 33. Ring groove; 4. Fastening member; 41. Fastening ring; 411. Ball; 42. Compression spring; 5. Driving mechanism; 51. Gear ring; 52. Incomplete gear; 53. Driving member; 531. Driven gear; 532. Driving gear; 533. Transmission gear; 534. Micro motor; 6. Limit rod. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a high-precision spinneret for producing ultra-soft polyester.

[0034] Reference Figure 1 , Figure 2 and Figure 3 A high-precision spinneret for producing ultra-soft polyester includes a spinneret base plate 1, a fixed shaft 11 is axially fixedly arranged at the axis center of one side of the spinneret base plate 1, and a spinneret diameter control plate 2 and a cover ring 3 are coaxially sleeved on the fixed shaft 11, the spinneret diameter control plate 2 is clamped between the spinneret base plate 1 and the cover ring 3, and the spinneret base plate 1 and the cover ring 3 are correspondingly connected and provided with a plurality of bolt countersunk holes 31 for installing connecting bolts, and four are taken as an example in this embodiment. The opposite sides of the spinneret diameter control plate 2 and the spinneret base plate 1 are coated with a wear-resistant coating, and the spinneret diameter control plate 2 and the fixed shaft 11 are rotatably matched, and a fastening member 4 is arranged in the cover ring 3 corresponding to the spinneret diameter control plate 2. A plurality of spinneret holes 21 are correspondingly connected and provided on the spinneret diameter control plate 2 and the spinneret base plate 1, and a driving mechanism 5 is arranged between the spinneret base plate 1 and the spinneret diameter control plate 2.

[0035] Reference Figure 1 , Figure 2 and Figure 3, the staff can quickly install the spinneret by sequentially sleeve-mounting the spinneret diameter control plate 2 and the cover ring 3 on the fixed shaft 11. At this time, the spinneret diameter control plate 2 is firmly pressed against the spinneret base plate 1 by the pressing member 4. During the operation of the spinneret, the spinneret diameter control plate 2 is driven by the driving mechanism 5 to reciprocate around the fixed shaft 11 in contact with the spinneret base plate 1. At this time, the melt is ejected from the overlapping pores of the corresponding spinneret holes 21 on the spinneret base plate 1 and the spinneret diameter control plate 2, and the cross section of the polyester fiber ejected from the spinneret is constantly changing during the reciprocating rotation of the spinneret diameter control plate 2.

[0036] Reference Figure 2 and Figure 3 , in order to improve the installation efficiency of the spinneret substrate 1 and the cover ring 3 , several clamp slots 12 distributed in a circular array are arranged at the outer edge of the corresponding cover ring 3 on the spinneret substrate 1 . Each clamp slot 12 is fixedly provided with each clamp slot 12 corresponding to the clamp slot 12 , and the clamp slot 12 corresponds one by one and is inserted and fitted.

[0037] Reference Figure 2 and Figure 3 A ring groove 33 is coaxially opened on the side wall of the cover ring 3 that presses the spinneret diameter control plate 2. The clamping member 4 includes a clamping ring 41 and a compression spring 42. The clamping ring 41 cooperates with the ring groove 33 and is slidably arranged in the ring groove 33 along the axial direction of the fixed shaft 11, and the compression spring 42 is located in the ring groove 33 and abuts between the clamping ring 41 and the inner bottom wall of the ring groove 33. A plurality of balls 411 are embedded in the circumferential direction on the side wall of the clamping ring 41 facing the spinneret diameter control plate 2, and the plurality of balls 411 abut against the side wall of the spinneret diameter control plate 2.

[0038] Reference Figure 2 , Figure 3 and Figure 4 The driving mechanism 5 includes a gear ring 51, an incomplete gear 52 and a driving member 53. The gear ring 51 is fixedly sleeved on the side wall of the outer ring of the spinneret diameter control plate 2. A placement groove 13 is provided on the spinneret base plate 1 near the outer ring of the spinneret diameter control plate 2. Two incomplete gears 52 are arranged along the circumference of the outer ring of the spinneret diameter control plate 2, and the two incomplete gears 52 are meshed with the gear ring 51. The rotating shafts of the two incomplete gears 52 are parallel to the depth direction of the placement groove 13, and are rotatably arranged on the inner bottom wall of the placement groove 13 through bearings.

[0039] Reference Figure 4The driving member 53 in this embodiment includes two driven gears 531, a driving gear 532, a transmission gear 533 and a micro motor 534. The two driven gears 531 are respectively fixedly sleeved on the corresponding rotating shafts of the incomplete gear 52, and the driving gear 532 and the transmission gear 533 are located between the two driven gears 531. The driven gear 531, the driving gear 532, the transmission gear 533 and the driven gear 531 are meshed in sequence. The micro motor 534 is fixedly arranged on the inner side wall of the placement groove 13, and its output shaft is coaxially fixedly connected with the rotating shaft of the driving gear 532.

[0040] Reference Figure 2 and Figure 3 In order to improve the quality of the finished polyester fiber ejected from the spinneret, a plurality of arc grooves 14 are provided on the side of the spinneret base plate 1 facing the spinneret diameter control plate 2. Two arc grooves 14 are provided as an example in this embodiment. The two arc grooves 14 are centrally symmetrical with the fixed shaft 11 as the center, and the arc centers of the two arc grooves 14 coincide with the axis of the fixed shaft 11. The arc lengths of the two arc grooves 14 are both matched with the extreme reciprocating motion range of the spinneret diameter control plate 2, and a limiting rod 6 is fixedly provided on the side wall of the spinneret diameter control plate 2 facing the arc groove 14 corresponding to each arc groove 14. The limiting rod 6 is located in the arc groove 14 and is slidably matched with the arc groove 14.

[0041] The implementation principle of a high-precision spinneret for producing ultra-soft polyester in an embodiment of the present application is as follows: the staff can quickly install the spinneret by sequentially sleeved the spinneret diameter control plate 2 and the cover ring 3 on the fixed shaft 11, and at this time, the spinneret diameter control plate 2 is firmly pressed against the spinneret base plate 1 by the clamping ring 41.

[0042] During the operation of the spinneret, the micro motor 534 is started, and the micro motor 534 drives the driven gear 531 to rotate, thereby driving the transmission gear 533 and the driven gear 531 meshing therewith to rotate synchronously. The rotation of the transmission gear 533 drives the other driven gear 531 meshing therewith to rotate synchronously, thereby realizing the synchronous reverse rotation of the two incomplete gears 52. When one of the incomplete gears 52 is meshed with the ring gear 51 and drives the ring gear 51 to rotate, the tooth tip of the other incomplete gear 52 rotates to a position away from the ring gear 51, thereby performing reciprocating rotation. At this time, the melt is ejected from the overlapping pores of the spinneret base plate 1 and the corresponding spinneret holes 21 on the spinneret diameter control plate 2, and the cross-section of the polyester fiber ejected from the spinneret changes continuously during the reciprocating rotation of the spinneret diameter control plate 2.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-precision spinneret for producing ultra-soft polyester, characterized in that: The invention comprises a spinneret substrate (1), wherein a fixed shaft (11) is axially arranged at the axis center of one side of the spinneret substrate (1), a spinneret diameter control plate (2) and a cover ring (3) are coaxially sleeved on the fixed shaft (11), the spinneret diameter control plate (2) is clamped between the spinneret substrate (1) and the cover ring (3), the spinneret diameter control plate (2) and the fixed shaft (11) are rotatably matched, and a plurality of spinneret holes (21) are correspondingly opened on the spinneret diameter control plate (2) and the spinneret substrate (1), and a driving mechanism (5) for driving the spinneret diameter control plate (2) to reciprocate is arranged between the spinneret substrate (1) and the spinneret diameter control plate (2).

2. A high-precision spinneret for producing ultra-soft polyester according to claim 1, characterized in that: The driving mechanism (5) comprises a gear ring (51) sleeved on the outer ring of the spinneret diameter control plate (2), an incomplete gear (52) rotatably arranged on the spinneret base plate (1) and meshing with the gear ring (51), and a driving member (53). Two incomplete gears (52) are arranged along the circumference of the outer ring of the spinneret diameter control plate (2). The two incomplete gears (52) rotate in opposite directions. The driving member (53) is used to drive the two incomplete gears (52) to rotate synchronously. When one of the incomplete gears (52) meshes with the gear ring (51) and drives the gear ring (51) to rotate, the tooth tip of the other incomplete gear (52) rotates to a position away from the gear ring (51).

3. A high-precision spinneret for producing ultra-soft polyester according to claim 2, characterized in that: The spinneret substrate (1) is provided with a placement groove (13) at a position close to the outer ring of the spinneret diameter control plate (2); the rotating shafts of the two incomplete gears (52) are parallel and rotatably arranged on the inner bottom wall of the placement groove (13); the driving member (53) comprises a driven gear (531) sleeved on the rotating shafts of the two incomplete gears (52), a driving gear (532) and a transmission gear (533) meshed between the two driven gears (531), and a micro motor (534) for driving the driving gear (532) to rotate; the driven gear (531), the driving gear (532), the transmission gear (533) and the driven gear (531) are meshed in sequence.

4. The high-precision spinneret for producing super-soft polyester according to claim 1, characterized in that: A plurality of arc grooves (14) are provided on one side of the spinneret base plate (1) facing the spinneret diameter control plate (2) corresponding to the reciprocating motion range of the spinneret diameter control plate (2); the plurality of arc grooves (14) are distributed along the circumference of the spinneret base plate (1), and a limiting rod (6) is slidably arranged in each of the arc grooves (14); and the plurality of limiting rods (6) are arranged on the spinneret diameter control plate (2).

5. The high-precision spinneret for producing ultra-soft polyester according to claim 1, characterized in that: The spinneret substrate (1) is provided with a plurality of bolt counterbores (31) for installation, which are connected to each other correspondingly with the cover ring (3); the spinneret substrate (1) is provided with a plurality of slots (12) distributed in a circular array at the outer edge of the cover ring (3) corresponding to the spinneret substrate (1); and a block (32) is inserted into each of the slots (12); and the plurality of blocks (32) are arranged on the cover ring (3).

6. The high-precision spinneret for producing ultra-soft polyester according to claim 1, characterized in that: The opposite sides of the spinneret diameter control plate (2) and the spinneret base plate (1) are both coated with a wear-resistant coating.

7. The high-precision spinneret for producing super-soft polyester according to claim 1, characterized in that: A pressing member (4) for pressing the spinneret diameter control plate (2) against the spinneret base plate (1) is arranged on the inner side wall of the cover ring (3); an annular groove (33) is coaxially provided on the side wall of the cover ring (3) for pressing the spinneret diameter control plate (2); the pressing member (4) comprises a pressing ring (41) arranged in the annular groove (33) for axial sliding along the fixed shaft (11) and a compression spring (42) abutting between the pressing ring (41) and the inner bottom wall of the annular groove (33); the pressing ring (41) abuts against the side wall of the spinneret diameter control plate (2).

8. The high-precision spinneret for producing ultra-soft polyester according to claim 7, characterized in that: A plurality of balls (411) are embedded on the side wall of the abutting ring (41) facing the spinneret diameter control plate (2).

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