A spliced ​​multi-leaf hollow spinneret

Abstract

This utility model relates to the field of spinneret technology and discloses a spliced ​​multi-leaf hollow spinneret, including a positioning plate with multiple fixing grooves on its top. The spinneret is placed in the fixing grooves of the positioning plate. Rotating the knob on the outside of the screw causes the screw to rotate, as the screw and clamping frame are movably connected via a bearing seat. This rotation of the screw translates into the sliding of the clamping frame on the crossbar. As the clamping frame slides inward into the annular groove, it clamps and fixes the spinneret. After installation, the spinning raw material is extruded through the spinneret holes under pressure, and then cooled and solidified to form fibers. For disassembly, the U-shaped block is slid outward, causing it to move along the guide rail outward, causing the threaded sleeve to lose its limit. By rotating the angle of the threaded sleeve, the threaded sleeve and screw lose their threaded connection, allowing the screw to be quickly pulled outward, thus releasing the clamping frame. The spinneret can then be easily removed for replacement and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of spinneret technology, and in particular to a spliced ​​multi-leaf hollow-hole spinneret. Background Technology

[0002] The spinneret is the core component in the chemical fiber spinning process, known as the "heart" of chemical fiber production. It is usually made of corrosion-resistant, high-strength metal materials, with numerous tiny spinneret holes evenly distributed on its surface. The shape, size, and distribution precision of these spinneret holes directly determine the morphology, specifications, and quality of the fiber. During the spinning process, polymer melt or solution is extruded through the spinneret holes under pressure, and then cooled and solidified to form continuous filaments. From circular and trilobal shapes to complex hollow irregular structures, different shapes of spinneret holes can produce monofilaments, multifilaments, and functional specialty fibers, which are widely used in textiles, clothing, medical and health care, aerospace, and other fields.

[0003] Spinnerets are used in chemical fiber spinning production. Existing spinnerets are made of one-piece die casting. When different spinnerets with different apertures and shapes are needed for spinning, the entire spinneret needs to be replaced. Disassembly and installation are relatively complicated, which reduces the efficiency of enterprises.

[0004] To address this issue, a spliced ​​multi-leaf hollow spinneret is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a spliced ​​multi-leaf hollow spinneret, which aims to improve the existing technology where the spinneret is made of one-piece die casting. When different spinnerets with different apertures and shapes are needed for spinning, the entire spinneret needs to be replaced, which is complicated to disassemble and install, reducing the efficiency of enterprises.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A spliced ​​multi-leaf hollow spinneret includes: a positioning plate, the top of which has multiple fixing grooves, the inside of which the spinneret is disposed, the inside of which the spinneret has spinneret holes, the bottom of which has a clamping groove, the inside of which is a clamping mechanism for clamping and fixing the spinneret.

[0008] Through the above technical solutions, the positioning plate and its fixing groove provide a stable installation foundation, ensuring the precise installation position of the spinneret. The spinneret and its internal spinneret holes determine the fiber forming quality. The replaceable design facilitates replacement for different fiber production needs, improving production flexibility. The cooperation between the clamping groove and the clamping mechanism can effectively prevent the spinneret from shifting due to pressure, vibration and other factors during the spinning process, ensuring the stability of the spinning process, reducing the product defect rate, and facilitating the disassembly and maintenance of the spinneret, reducing equipment maintenance costs, and improving production efficiency and product quality.

[0009] As a further description of the above technical solution: the clamping mechanism includes four fixing blocks, which are fixedly installed at the bottom inside the clamping groove and are symmetrically distributed.

[0010] The above technical solution, with its symmetrical distribution design, provides balanced support and constraint to the spinneret, ensuring uniform force distribution when subjected to spinning pressure. This prevents tilting and deformation due to uneven force distribution, thus guaranteeing spinneret accuracy.

[0011] As a further description of the above technical solution: the fixing blocks are in groups of two, and a crossbar is fixedly installed on the inner side of each group of fixing blocks. A clamping frame is slidably connected to the surfaces of the two crossbars, and the inner side of the clamping frame is arc-shaped.

[0012] The above technical solution, by setting a crossbar between each set of fixed blocks, allows the clamping frame to slide on the surface of the crossbar, forming an adjustable clamping structure, which enhances the versatility of spinneret installation. The inner side of the clamping frame adopts an arc-shaped design, which fits the outline of the annular groove, which can increase the contact area, improve the stability of clamping, and avoid damage to the surface of the spinneret caused by rigid extrusion.

[0013] As a further description of the above technical solution: a screw is movably connected to the outer side of the clamping frame via a bearing seat, and the screw penetrates the surface of the positioning plate.

[0014] Through the above technical solution, the bearing housing reduces the friction when the screw rotates, allowing operators to more easily drive the clamping frame to slide by rotating the screw, accurately adjust the clamping force, and achieve rapid fastening and disassembly of the spinneret.

[0015] As a further description of the above technical solution: a knob is fixedly connected to the outside of the screw, and the surface of the knob is covered with a rubber layer.

[0016] Through the above technical solutions, the knob design provides operators with a larger force application area and a more convenient point of operation, reducing the difficulty of operation and hand fatigue, improving the efficiency of installing and disassembling the spinneret, and the rubber layer covering the knob surface increases surface friction to prevent hand slippage during operation, ensuring precise control of the screw rotation force and angle, and guaranteeing the stability of the clamping effect.

[0017] As a further description of the above technical solution: a clamping block is fixedly connected to the bottom of the spinneret, and an annular groove is formed on the surface of the clamping block, which is used in conjunction with the clamping frame.

[0018] Through the above technical solution, the matching of the annular groove and the clamping frame achieves a stable clamping through surface contact, preventing the spinneret from shifting and ensuring spinning accuracy.

[0019] As a further description of the above technical solution: a support ring is fixedly connected to the outer side of the positioning plate, and a threaded sleeve is movably connected to the top of the support ring through a shaft pin. Multiple sets of guide rails are fixedly connected to the outer side of the positioning plate. A U-shaped block is connected to the surface of each set of guide rails with sliding damping. The U-shaped block is used in conjunction with the threaded sleeve. The inner side of the threaded sleeve is threaded, and the threaded sleeve is used in conjunction with a screw.

[0020] Through the above technical solution, the support ring supports the screw, the top threaded sleeve provides support force for the screw thread to tighten, and the U-shaped block moves on the guide rail to lock the support ring and the threaded sleeve, preventing the threaded sleeve from shaking and improving the tightening effect on the screw.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when the spliced ​​multi-leaf hollow spinneret is in operation, the spinneret is first placed in the fixing groove of the positioning plate, and the clamping block at the bottom of the spinneret falls precisely into the clamping groove. At this time, by rotating the knob on the outside of the screw, since the screw and the clamping frame are movably connected through the bearing seat, the knob drives the screw to rotate. The rotation of the screw is converted into the sliding of the clamping frame on the crossbar. The inner arc-shaped structure of the clamping frame matches the annular groove on the surface of the clamping block. As the clamping frame slides inward, it gradually clamps into the annular groove, forming a ring around the spinneret. The clamping mechanism features four symmetrically distributed fixing blocks that provide stable support and ensure uniform clamping force. After installation, the spinning raw material is extruded through the spinneret holes under pressure, and then cooled and solidified to form fibers. During disassembly, the U-shaped blocks are slid outwards, causing them to move along the guide rail and disengage the threaded sleeve. By rotating the angle of the threaded sleeve, the threaded sleeve is disconnected from the screw, allowing the screw to be quickly pulled outwards, thus releasing the clamping frame. The spinneret can then be easily removed for replacement and maintenance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structural positioning plate of this utility model;

[0024] Figure 2 This is a schematic diagram of the spinneret structure of this utility model;

[0025] Figure 3The structure of this utility model Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is a schematic diagram of the clamping frame structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the screw sleeve ring structure of this utility model;

[0028] Figure 6 This is a schematic diagram showing the connection between the screw, support ring, and screw sleeve of this utility model.

[0029] Legend:

[0030] 1. Positioning plate; 2. Fixing groove; 3. Spinneret; 4. Spinneret hole; 5. Clamping groove; 6. Clamping mechanism; 7. Fixing block; 8. Crossbar; 9. Clamping frame; 10. Screw; 11. Knob; 12. Clamping block; 13. Annular groove; 101. Support ring; 102. Screw collar; 103. Guide rail; 104. U-shaped block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1-6 This utility model provides an embodiment of a spliced ​​multi-leaf hollow spinneret, comprising: a positioning plate 1, with multiple fixing grooves 2 on the top of the positioning plate 1, a spinneret 3 disposed inside the fixing grooves 2, and spinneret holes 4 disposed inside the spinneret 3; a clamping groove 5 disposed at the bottom of the fixing grooves 2, and a clamping mechanism 6 disposed inside the clamping groove 5; the clamping mechanism 6 is used to clamp and fix the spinneret 3. The positioning plate 1 and its fixing grooves 2 provide a stable installation base, ensuring accurate installation of the spinneret 3. The spinneret 3 and its internal spinneret holes 4 determine the fiber forming quality. The replaceable design facilitates replacement for different fiber production needs, improving production flexibility. The cooperation between the clamping groove 5 and the clamping mechanism 6 effectively prevents the spinneret 3 from shifting due to pressure, vibration, or other factors during the spinning process, ensuring the stability of the spinning process, reducing product defect rate, and facilitating the disassembly and maintenance of the spinneret 3, reducing equipment maintenance costs, and improving production efficiency and product quality.

[0033] Reference Figure 1-6The clamping mechanism 6 includes four fixing blocks 7, which are fixedly installed at the bottom of the clamping groove 5 and are symmetrically distributed. The symmetrical distribution design can provide balanced support and constraint for the spinneret 3, ensuring that it is subjected to uniform force when subjected to spinning pressure, avoiding tilting and deformation due to uneven force, and ensuring spinneret accuracy. The fixing blocks 7 are in groups of two, and a crossbar 8 is fixedly installed on the inner side of each group of fixing blocks 7. The surfaces of the two crossbars 8 are slidably connected to a clamping frame 9. The inner side of the clamping frame 9 is arc-shaped. By setting the crossbar 8 between each group of fixing blocks 7, the clamping frame 9 slides on the surface of the crossbar 8 to form an adjustable clamping structure, which enhances the versatility of the spinneret 3 installation. The arc-shaped design of the inner side of the clamping frame 9 fits the outer contour of the annular groove 13, which can increase the contact area, improve the stability of clamping, and avoid damage to the surface of the spinneret 3 due to rigid compression.

[0034] Reference Figure 1-6 A screw 10 is movably connected to the outer side of the clamping frame 9 via a bearing seat. The screw 10 penetrates the surface of the positioning plate 1. The bearing seat reduces the friction when the screw 10 rotates, allowing the operator to more easily drive the clamping frame 9 to slide by rotating the screw 10. The clamping force can be adjusted to achieve quick fastening and disassembly of the spinneret 3. A knob 11 is fixedly connected to the outer side of the screw 10. The surface of the knob 11 is covered with a rubber layer. The knob 11 provides the operator with a larger force application area and a more convenient operating point, reducing the difficulty of operation. To reduce hand fatigue and improve the efficiency of installing and removing the spinneret 3, the rubber layer covering the surface of the knob 11 increases surface friction and prevents hand slippage during operation, ensuring precise control of the rotation force and angle of the screw 10 and guaranteeing the stability of the clamping effect. A clamping block 12 is fixedly connected to the bottom of the spinneret 3. The surface of the clamping block 12 has an annular groove 13, which works in conjunction with the clamping frame 9. The fit between the annular groove 13 and the clamping frame 9 achieves a stable surface contact clamping, preventing the spinneret 3 from shifting and ensuring spinning accuracy.

[0035] A support ring 101 is fixedly connected to the outer side of the positioning plate 1. A threaded sleeve ring 102 is movably connected to the top of the support ring 101 via a shaft pin. Multiple sets of guide rails 103 are fixedly connected to the outer side of the positioning plate 1. A U-shaped block 104 is connected to the surface of each set of guide rails 103 with sliding damping. The U-shaped block 104 is used in conjunction with the threaded sleeve ring 102. The inner side of the threaded sleeve ring 102 is threaded. The threaded sleeve ring 102 is used in conjunction with the screw 10. The support ring 101 supports the screw 10. The threaded sleeve ring 102 at the top provides support force for the screw 10 to be threaded and tightened. At the same time, the movement of the U-shaped block 104 on the guide rail 103 will lock the support ring 101 and the threaded sleeve ring 102, preventing the threaded sleeve ring 102 from shaking and improving the tightening effect on the screw 10.

[0036] Furthermore, when it is necessary to disassemble or install the spinneret 3, personnel can remove the restriction on the threaded sleeve 102 by moving the U-shaped block 104, allowing the threaded sleeve 102 to rotate on the support ring 101, thereby opening a certain angle between the threaded sleeve 102 and the support ring 101, so that the screw 10 can be directly pulled out on the positioning plate 1. When the screw 10 moves to a suitable distance, the threaded sleeve 102 and the support ring 101 can be merged, and the U-shaped block 104 can limit the two. At this time, the screw 10 and the inner wall of the threaded sleeve 102 are in a threaded engagement state. Rotating the screw 10 can achieve fine adjustment of the clamping frame 9.

[0037] Working principle: When the spliced ​​multi-leaf hollow spinneret 3 is working, the spinneret 3 is first placed in the fixing groove 2 of the positioning plate 1. The clamping block 12 at the bottom of the spinneret 3 falls precisely into the clamping groove 5. At this time, by rotating the knob 11 on the outside of the screw 10, since the screw 10 and the clamping frame 9 are movably connected through the bearing seat, the knob 11 drives the screw 10 to rotate inside the screw sleeve ring 102. The rotation of the screw 10 is converted into the sliding of the clamping frame 9 on the crossbar 8. The arc-shaped structure on the inner side of the clamping frame 9 matches the annular groove 13 on the surface of the clamping block 12. As the clamping frame 9 slides inward, it gradually engages with the annular groove 13, thus controlling the spinneret. The spinneret 3 forms a ring-shaped clamping and fixing mechanism, and four fixing blocks 7 are symmetrically distributed to provide stable support and ensure uniform clamping force. After installation, the spinning raw material is extruded through the spinneret hole 4 of the spinneret 3 under pressure, and then cooled and solidified to form fibers. When disassembling, the U-shaped block 104 is slid outward, so that the U-shaped block 104 moves outward along the guide rail 103, causing the threaded sleeve ring 102 to lose its limit. By rotating the angle of the threaded sleeve ring 102, the threaded sleeve ring 102 and the screw 10 are disconnected from the threaded connection, so that the screw 10 can be quickly pulled outward, thereby loosening the clamping frame 9, and the spinneret 3 can be easily removed for replacement and maintenance.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A segmented multi-leaf hollow orifice spinneret comprising: The positioning plate (1) is characterized in that: the top of the positioning plate (1) is provided with a plurality of fixing grooves (2), the inside of the fixing grooves (2) is provided with a spinneret plate (3), the inside of the spinneret plate (3) is provided with a spinneret hole (4), the bottom of the fixing grooves (2) is provided with a clamping groove (5), the inside of the clamping groove (5) is provided with a clamping mechanism (6), and the clamping mechanism (6) is used to clamp and fix the spinneret plate (3).

2. A split multi-lobal hole spinneret according to claim 1, characterized in that: The clamping mechanism (6) includes four fixing blocks (7), which are fixedly installed at the bottom inside the clamping groove (5) and are symmetrically distributed.

3. A split multi-leaf hollow orifice spinneret according to claim 2, characterized in that: The fixing blocks (7) are in pairs. A crossbar (8) is fixedly installed on the inner side of each pair of fixing blocks (7). A clamping frame (9) is slidably connected to the surface of the two crossbars (8). The inner side of the clamping frame (9) is arc-shaped.

4. A split multi-leaf hollow orifice spinneret according to claim 3, wherein: The clamping frame (9) is movably connected to a screw (10) via a bearing seat on its outer side, and the screw (10) penetrates the surface of the positioning plate (1).

5. A split multi-leaf hollow orifice spinneret according to claim 4, characterized in that: A knob (11) is fixedly connected to the outside of the screw (10), and the surface of the knob (11) is covered with a rubber layer.

6. A split multi-lobal orifice hollow jet plate according to claim 2, wherein: The bottom of the spinneret (3) is fixedly connected to a clamping block (12), and the surface of the clamping block (12) is provided with an annular groove (13), which is used in conjunction with the clamping frame (9).

7. The segmented multi-lobal hollow orifice spinneret of claim 2, wherein: A support ring (101) is fixedly connected to the outer side of the positioning plate (1). A threaded sleeve ring (102) is movably connected to the top of the support ring (101) via a shaft pin. Multiple sets of guide rails (103) are fixedly connected to the outer side of the positioning plate (1). A U-shaped block (104) is connected to the surface of each set of guide rails (103) with sliding damping. The U-shaped block (104) is used in conjunction with the threaded sleeve ring (102). The inner side of the threaded sleeve ring (102) is threaded. The threaded sleeve ring (102) is used in conjunction with the screw (10).

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