Special fiber profile spinneret assembly for suiting

Abstract

The present application relates to a kind of special fiber special-shaped spinneret assembly of cloth, including metal sand filling device, metal sand filling device includes feed distribution mechanism, ration metering mechanism and blanking leveling mechanism;Feed distribution mechanism includes feed cylinder, feed flow channel, rotary drive assembly, and ration pre-pressing assembly;Ration metering mechanism includes ration cylinder, ration storage cavity;Blanking leveling mechanism includes support mounting plate, blanking through-hole, hollow discharge cylinder, discharge port;Through linear work station layout of full-line automation, integrate sand cup loading, cleaning dust removal, multi-layer mesh precision assembly, metal sand ration filling leveling, press mounting fastening, product output whole process, solve the technical problem of poor precision of manual assembly, consistency is insufficient.

Description

Technical Field

[0001] This invention relates to the field of chemical fiber spinning component assembly equipment, and in particular to a special fiber-shaped spinneret assembly system for plush fabric. Background Technology

[0002] The spinning quality of special-shaped fibers for velvet fabrics is highly dependent on the assembly precision of the filter components inside the spinneret. Among these, the quantitative filling of metal abrasive, the stacking of multiple filter screens, and the pressing of the flow divider are the core processes in spinneret assembly. The uniformity of the filter layer filling and the coaxiality of the mesh assembly directly determine the flow stability of the spinning melt, ultimately affecting the cross-sectional forming precision of the special-shaped fibers and the hand feel of the finished velvet fabric.

[0003] As the precision requirements of chemical fiber equipment increase, the industry has begun to improve the tooling for individual processes, resulting in auxiliary tooling such as quantitative weighing devices and manual pressing tables, which have improved the operational stability of individual processes to some extent.

[0004] Chinese patent CN220788886U discloses a spinneret for fiber preparation, which integrates a filter screen unit inside the spinneret and is equipped with an electric lifting extrusion unit, optimizing the stability of melt filtration and extrusion in the spinning process. It is a typical example of structural optimization at the spinneret production end.

[0005] However, these technical solutions all focus on improving the spinning production process and do not address the assembly process of the spinneret before it leaves the factory. The filter unit still requires manual completion of internal metal sand filling, filter stacking and pressing assembly. Among them, metal sand filling relies on manual weighing and pouring, which results in large filling errors and poor sand surface flatness, easily causing uneven filtration. Moreover, each process is arranged independently, resulting in low assembly efficiency, which makes it difficult to meet the needs of large-scale, high-precision irregular spinneret mass production, ultimately directly affecting the spinning stability of the plush fabric fibers and the quality of the finished product. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a special fiber spinneret assembly system for velour fabric. Through a fully automated linear workstation layout, it integrates the entire process of sand cup feeding, cleaning and dust removal, precise assembly of multi-layer mesh components, quantitative filling and leveling of metal sand, pressing and fastening, and finished product output, thus solving the technical problems of poor accuracy and insufficient consistency in manual assembly.

[0007] To address the above technical problems, the following technical solution is adopted: A special fiber-shaped spinneret assembly system for velvet fabric, including a metal sand filling device, wherein the metal sand filling device includes a feeding and distributing mechanism, a quantitative metering mechanism, and a material dropping and leveling mechanism arranged coaxially from top to bottom; The feeding and distributing mechanism includes a solid feeding cylinder, two sets of symmetrical feeding channels that penetrate through the inside of the feeding cylinder, a rotary drive assembly externally placed in the feeding cylinder and driving the feeding cylinder to rotate around an axis, and a quantitative pre-compression assembly disposed between the two sets of feeding channels. The quantitative metering mechanism includes a solid quantitative cylinder and a quantitative storage cavity that runs through the quantitative cylinder and is intermittently connected to the feed channel. The material discharge and leveling mechanism includes a support mounting plate fixedly installed on the frame assembly, a material discharge through hole opened on the support mounting plate and intermittently connected to the quantitative storage chamber, a hollow discharge cylinder rotatably disposed below the support mounting plate, and a discharge port through the lower end face of the discharge cylinder. During operation, metal sand is fed into the feed channel and rotates with the feed cylinder. When the feed channel is aligned with the metering storage chamber, the metal sand falls into the metering storage chamber. The feed cylinder continues to rotate, and the metering pre-compression component moves above the metering storage chamber to pre-compress the metal sand in the chamber before resetting and disengaging. Subsequently, the feed cylinder drives the metering cylinder to rotate synchronously through the intermittent synchronous transmission component. When the metering storage chamber rotates with the metering cylinder until it is aligned with the discharge through-hole, the lower obstruction is released, and the metal sand falls into the discharge cylinder through the discharge through-hole and is output to the spinneret sand cup through the discharge port. The sand surface leveling mechanism built into the discharge leveling mechanism operates synchronously to complete the leveling operation of the metal sand in the sand cup.

[0008] Preferably, the intermittent synchronous transmission assembly includes an arc-shaped guide groove formed on the lower end face of the feed cylinder and a transmission protrusion protruding on the upper end face of the metering cylinder. The transmission protrusion is fitted into the arc-shaped guide groove to achieve intermittent synchronous transmission between the feed cylinder and the metering cylinder.

[0009] Preferably, the sanding and leveling mechanism includes: A cylinder locking assembly includes a locking gripper driven by a linear drive cylinder to perform reciprocating linear motion. The contact end face of the locking gripper with the discharge cylinder is provided with an anti-slip friction plate for locking and fixing the discharge cylinder. The rotary leveling assembly includes a central shaft driven by a servo drive motor to rotate, a leveling bracket fixedly mounted on the central shaft, and a contour leveling head elastically slidable below the leveling bracket in the vertical direction. The contour leveling head is contour-fitted to the discharge port and has a floating scraper elastically arranged in the radial direction. One side of the contour leveling head is mounted on the leveling bracket via a hinge assembly. The central shaft vertically passes through the center of the feed cylinder, the metering cylinder, and the discharge cylinder, and is not in contact with the inner wall of each cylinder.

[0010] It should be noted that both the feed cylinder and the metering cylinder have clearance holes through their centers, and the central rotating shaft passes through all the clearance holes in sequence.

[0011] Preferably, the quantitative pre-compression component includes: The pre-press head has an arc-shaped pressing surface at its lower end, and is elastically installed in the receiving and mounting groove of the feed cylinder through a first elastic reset member; A radial transmission unit includes a transmission slide rod that is elastically disposed radially in the accommodating mounting groove, a wedge-shaped drive block fixed to the inner end of the transmission slide rod, and a driven push rod that is connected to the outer end of the transmission slide rod and extends outward from the feed cylinder. The lifting driven block is fixedly installed on the pre-pressing head, and its upper driving surface is inclined, which intermittently abuts against the wedge-shaped driving block. The trigger guide block is fixedly installed on the frame assembly. When the driven push rod rotates to the position of the trigger guide block with the feed cylinder, it moves radially back and forth along the feed cylinder under the guidance of the trigger guide block, driving the wedge drive block to drive the lifting driven block to rise and fall, thereby realizing the quantitative pre-compression action of the pre-compression head.

[0012] Preferably, a vibration tapping mechanism is also provided on the outer side of the metering cylinder, the vibration tapping mechanism comprising: The striking swing unit includes a striking swing arm rotatably mounted on the frame assembly and an elastic striking head elastically disposed at the end of the striking swing arm. The striking swing arm and the frame assembly are connected by a return spring. An intermittent drive unit includes a drive gear that is coaxially rotatable with the striking arm, and an incomplete external gear ring that is sleeved and fixed to the outer wall of the metering cylinder; the drive gear and the incomplete external gear ring intermittently mesh and drive the striking arm to swing back and forth to strike the metering cylinder.

[0013] Preferably, the quantitative storage chamber has an inverted conical structure, and a guide chamfer is provided at the upper inlet of the feed channel.

[0014] Preferably, the spinneret sand cup is carried by a tooling device, which continuously transports the sand along a circulating tooling conveyor line; the metal sand filling device is located on one side of the circulating tooling conveyor line via a two-axis displacement module.

[0015] Preferably, along the conveying direction of the circulating tooling conveyor line, a sand cup feeding device, a dust removal device, a first mesh feeding device, a second mesh feeding device, a lower diverter plate feeding device, a pressing device, and a finished product output device are sequentially arranged. The metal sand filling device is located between the first mesh feeding device and the second mesh feeding device.

[0016] Preferably, the first mesh feeding device is used to assemble the sand cup filter and the composite mesh, and the second mesh feeding device is used to assemble the overflow cover and the filter; both the first mesh feeding device and the second mesh feeding device are equipped with an adsorption extraction unit and a gripper extraction unit.

[0017] As a further preferred embodiment, the circulating tooling conveyor line is also provided with a carrier self-centering mechanism, which includes two sets of positioning grippers symmetrically arranged on both sides of the tooling. The two sets of positioning grippers are driven by cylinders to move synchronously towards each other, and their translation direction is perpendicular to the flow direction of the circulating tooling conveyor line. The contact surface between the positioning gripper and the spinneret abrasive cup is a V-shaped positioning surface.

[0018] The beneficial effects of this invention are: (1) By setting up a feeding distribution mechanism, a quantitative metering mechanism and a material dropping and leveling mechanism arranged in a coaxial manner, and cooperating with a quantitative pre-compression component and a vibration and tapping mechanism, the present invention realizes the integrated automated operation of quantitative metering, pre-compression and vibration and material dropping and leveling of metal sand. Compared with manual weighing and filling, the filling weight error is low and the sand surface flatness is high, which greatly improves the density uniformity and surface flatness of the filter layer, thereby ensuring the consistency of melt flow resistance during spinning, stabilizing the cross-sectional forming accuracy of the irregular fiber, and reducing the production fiber breakage rate.

[0019] (2) By setting up an intermittent synchronous transmission component consisting of an arc-shaped guide groove and a transmission protrusion, the present invention realizes the time-sequential intermittent synchronous transmission between the feeding cylinder and the metering cylinder with a purely mechanical structure. A single drive source can complete the full cycle connection of feeding static metering, pre-compression vibration and synchronous rotary material dropping. There is no need to configure an independent drive motor and an electrical control synchronization system. The structure is compact and the transmission accuracy is not affected by the electrical control delay. At the same time, it reduces the equipment manufacturing cost and the maintenance difficulty under dust conditions.

[0020] (3) This invention adopts a linear workstation layout of a circulating tooling conveyor line, which sequentially integrates the entire process of sand cup feeding, dust removal, multi-layer mesh assembly, metal sand filling, distribution plate loading, press-fitting and fastening, and finished product output. Each workstation operates in parallel, and there is no offline transfer and handling loss of workpieces. At the same time, with the self-centering mechanism of the carrier at each workstation, the coaxiality of the entire assembly process is guaranteed to be consistent, the pressure drop difference of batch products is low, and the product consistency is significantly improved.

[0021] (4) This invention integrates an adsorption extraction unit and a gripper extraction unit into the feeding devices of each mesh component, making it suitable for filter screens and flow divider parts of different materials and rigidities. The thin flexible filter screen is picked up and put in vacuum adsorption to avoid clamping deformation and breakage; the rigid flow cover and flow divider are picked up and put in by grippers or end face adsorption to ensure stable clamping and clean end face, and the feeding positioning accuracy is high, which meets the high-precision sealing assembly requirements of irregular spinnerets.

[0022] In summary, this equipment has the advantages of high assembly precision and consistent assembly, and is particularly suitable for the field of chemical fiber spinning component assembly equipment technology. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the assembly system for a special fiber-shaped spinneret for plush fabric.

[0025] Figure 2 Partial structural diagram of a fiber-shaped spinneret assembly system for velvet fabric. Figure 1 .

[0026] Figure 3 This is a schematic diagram of the self-centering mechanism of the vehicle.

[0027] Figure 4 Partial structural diagram of a fiber-shaped spinneret assembly system for velvet fabric. Figure 2 .

[0028] Figure 5 This is a schematic diagram of a metal sand filling device.

[0029] Figure 6 This is a schematic diagram of the transmission operation of a metal sand filling device.

[0030] Figure 7 This is a schematic diagram of the sand-surface leveling mechanism.

[0031] Figure 8 Schematic diagram of the quantitative preloading component Figure 1 .

[0032] Figure 9 Schematic diagram of the quantitative preloading component Figure 2 .

[0033] Figure 10 This is a schematic diagram of the vibratory striking mechanism. Detailed Implementation

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0035] Example 1 like Figure 5-10As shown, a special fiber spinneret assembly system for velvet fabric includes a metal sand filling device 1. The metal sand filling device 1 includes a feeding and distributing mechanism 2, a quantitative metering mechanism 3, and a material dropping and leveling mechanism 4 arranged coaxially from top to bottom. The three are arranged vertically along the central axis to form a vertical filling operation unit.

[0036] The feeding and distributing mechanism 2 includes a solid feeding cylinder 21, two sets of symmetrical feeding channels 22 that are symmetrically opened inside the feeding cylinder 21, a rotary drive assembly 23 that is placed outside the feeding cylinder 21 and drives the feeding cylinder 21 to rotate around an axis, and a quantitative pre-compression assembly 7 that is disposed between the two sets of feeding channels 22.

[0037] As an improvement, the rotary drive assembly 23 uses a servo motor in conjunction with gear transmission to drive the feed cylinder 21 to rotate at a constant speed or intermittently around its own central axis.

[0038] The quantitative metering mechanism 3 includes a solid quantitative cylinder 31 and a quantitative storage chamber 32 that runs through the quantitative cylinder 31 and is intermittently connected to the feed channel 22.

[0039] As an improvement, the metering cylinder 31 is coaxially sleeved on the outside of the central rotating shaft and can rotate independently around the shaft. The volume of the metering storage chamber 32 is customized according to the target filling amount. By replacing the metering cylinder with a different volume, it can be quickly adapted to the production of spinnerets of different specifications.

[0040] The material dropping and leveling mechanism 4 includes a support mounting plate 42 fixedly installed on the frame assembly 41, a material dropping through hole 43 opened on the support mounting plate 42 and intermittently connected to the quantitative storage chamber 32, a hollow discharge cylinder 44 rotatably disposed below the support mounting plate 42, and a discharge port 45 penetrating the lower end face of the discharge cylinder 44. As an improvement, the support mounting plate 42 serves as a fixed reference to support the quantitative cylinder above, and the lower end of the discharge cylinder 44 extends into the spinneret sand cup to prevent metal sand from spilling out when discharging.

[0041] During operation, metal sand is continuously fed into the feed channel 22 from the upper hopper, rotating synchronously with the feed cylinder 21. When the lower port of the feed channel 22 is aligned with the upper port of the quantitative storage chamber 32, the metal sand falls into the quantitative storage chamber 32 under gravity, completing the filling and metering. As the feed cylinder 21 continues to rotate, the feed channel and the quantitative storage chamber become misaligned, the feeding stops, and the quantitative pre-compression component 7 moves with the feed cylinder 21 to directly above the quantitative storage chamber 32, applying a set pressure to the metal sand in the chamber before resetting and releasing. Afterwards, the feeding cylinder 21 drives the metering cylinder 31 to rotate synchronously through the intermittent synchronous transmission component 5. When the metering storage chamber 32 rotates with the metering cylinder 31 and is aligned and connected with the discharge through hole 43, the bottom support is released. The pre-compressed metal sand falls into the discharge cylinder 44 through the discharge through hole 43 and is evenly output to the spinneret sand cup 10 below through the discharge port 45. After the discharge is completed, the sand surface leveling mechanism 6 built into the discharge leveling mechanism 4 operates synchronously to complete the leveling operation of the metal sand surface in the sand cup.

[0042] Furthermore, such as Figure 6 As shown, the intermittent synchronous transmission assembly 5 includes an arc-shaped guide groove 51 opened on the lower end face of the feed cylinder 21, and a transmission protrusion 52 protruding on the upper end face of the metering cylinder 31. The transmission protrusion 52 is adapted to be inserted into the arc-shaped guide groove 51 to realize intermittent synchronous transmission between the feed cylinder 21 and the metering cylinder 31.

[0043] It should be noted that the rotation of the feed cylinder 21 is a forward and reverse switching operation. Specifically, the central angle of the arc-shaped guide groove 51 corresponds to the rotation angle of the feeding pre-compression process, and its working sequence is divided into two stages: Feeding and pre-compression stage: The feeding cylinder 21 rotates under the drive of the rotary drive assembly 23, and the transmission protrusion 52 slides relative to the arc guide groove 51. At this time, the metering cylinder 31 remains stationary, and the feeding channel 22 completes the filling and the metering pre-compression assembly 7 completes the pre-compression action in sequence. Synchronous feeding stage: When the feeding cylinder 21 rotates to the end face of the arc-shaped guide groove 51 and abuts against the transmission protrusion 52, the rotational force of the feeding cylinder 21 is transmitted to the metering cylinder 31 through the transmission protrusion, pushing the metering cylinder 31 to rotate synchronously with the feeding cylinder 21. The metering storage chamber 32 rotates with the cylinder to the top of the feeding through hole 43 to complete the feeding and unloading.

[0044] In this embodiment, the intermittent synchronous transmission component 5, with its purely mechanical transmission structure, enables the sequential coordination of the two cylinders using a single drive source, eliminating the need for dual servo synchronous control and avoiding alignment deviations caused by electrical control delays. The transmission cycle is stable, and its reliability under metal sand and dust conditions is far superior to that of the electrical control scheme, resulting in low maintenance costs.

[0045] Furthermore, such as Figure 7As shown, the sanding and leveling mechanism 6 includes: The cylinder locking assembly 61 includes a locking gripper 611 driven by a linear drive cylinder to perform reciprocating linear motion. The contact end face of the locking gripper 611 with the discharge cylinder 44 is provided with an anti-slip friction plate, which is used to lock and fix the discharge cylinder 44 and to restrict the state of the discharge cylinder 44 at different times. The rotary leveling assembly 60 includes a central rotating shaft 62 driven by a servo drive motor to rotate, a leveling bracket 63 fixedly mounted on the central rotating shaft 62, and a contour leveling head 64 elastically slidably disposed below the leveling bracket 63 in the vertical direction. The contour leveling head 64 is contour-fitted to the discharge port 45, and a floating scraper 65 is elastically disposed in the radial direction. One side of the contour leveling head 64 is mounted on the leveling bracket 63 through a hinge assembly 66. The central rotating shaft 62 vertically penetrates the center of the feed cylinder 21, the metering cylinder 31, and the discharge cylinder 44, and is disposed without contact with the inner wall of each cylinder.

[0046] It should be noted that after the material is unloaded, the leveling process begins. In the initial state, the linear drive cylinder extends, driving the locking gripper 611 to clamp the outer wall of the discharge cylinder 44. The anti-slip friction plate provides sufficient friction, making the discharge cylinder 44 a fixed reference for the leveling action. After the metal sand enters the sand cup, the servo drive motor drives the central shaft 62 to rotate at low speed. The leveling bracket 63 drives the contour leveling head 64 to make a circular motion inside the discharge cylinder 44 until the contour leveling head 64 enters the discharge port 45. The floating scraper 65 contacts the upper surface of the metal sand. Then, the cylinder locking component 61 releases the clamp on the discharge cylinder 44, the central shaft 62 continues to rotate, and the contour leveling head 64 drives the discharge cylinder 44 to rotate synchronously. Thus, the radial floating scraper 65, under the combined action of centrifugal force and spring force, scrapes the accumulated metal sand and reduces the slope accumulation of metal sand. Furthermore, after the leveling operation is completed, the metal sand filling device moves vertically downwards. During the downward movement, the radially elastic floating scraper first contacts the surface of the metal sand. Under the upward reaction force of the sand surface, it retracts upwards along the axial guide structure inside the contour leveling head and is finally completely housed inside the contour leveling head, forming a continuous and complete flat pressing end face at the lower end of the contour leveling head. The device continues to move downwards to the preset pressing stroke, where the flat end face of the contour leveling head and the lower annular end face of the discharge cylinder work together to perform fixed-stroke final compaction on the metal sand in the sand cup, further homogenizing the sand layer density and enhancing the surface flatness accuracy.

[0047] Finally, the metal sand filling device is reset as a whole, the linear drive cylinder extends, driving the locking claw 611 to clamp the outer wall of the discharge cylinder 44, the servo drive motor drives the central shaft 62 to rotate again, and the rotary leveling component 60 disengages from the discharge port 45.

[0048] In this embodiment, by setting the sand surface leveling mechanism 6, high flatness of the entire sand surface area can be achieved, with small flatness error, ensuring consistent thickness of the filter layer, uniform flow resistance of the spinning melt, and eliminating fiber shape deviation caused by excessive local flow rate.

[0049] Furthermore, such as Figure 8-9 As shown, the quantitative pre-compression component 7 includes: The pre-press head 71 has an arc-shaped pressing surface at its lower end, and is elastically installed in the receiving and mounting groove 73 of the feed cylinder 21 through the first elastic reset member 72; The radial transmission unit includes a transmission slide rod 74 that is radially elastically disposed in the accommodating mounting groove 73 along the feed cylinder 21, a wedge-shaped drive block 75 fixed to the inner end of the transmission slide rod 74, and a driven push rod 76 that is connected to the outer end of the transmission slide rod 74 and extends outward from the feed cylinder 21. The lifting driven block 77 is fixedly installed on the pre-compression head 71, and its upper driving surface is inclined, which intermittently abuts against the wedge-shaped driving block 75. The trigger guide block 78 is fixedly mounted on the frame assembly 41. Its guide surface is an arc-shaped guide slope. When the driven push rod 76 rotates with the feed cylinder 21 to the position of the trigger guide block 78, it moves radially back and forth along the feed cylinder 21 under the guidance of the trigger guide block 78, driving the wedge-shaped drive block 75 to drive the lifting driven block 77 to rise and fall, thereby realizing the quantitative pre-compression action of the pre-compression head 71.

[0050] It should be noted that the pre-compression action is automatically triggered with the rotation of the feed cylinder, requiring no additional drive or sensor. Triggering stage: The driven push rod 76 rotates with the feed cylinder 21 to the position of the trigger guide block 78, and is squeezed outward by the guide slope, which drives the wedge drive block 75 to move outward; after the lifting driven block 77 loses its limit, it drives the pre-compression head 71 to extend downward and press into the quantitative storage chamber 32 to apply pre-compression to the sand body. Reset phase: After the driven push rod 76 slides past the trigger guide block 78, the transmission slide rod 74 pops out inward under the action of the reset spring, the wedge drive block 75 is squeezed, and the pre-compression head 71 is compressed and elastically retracted into the receiving installation groove 73, completing one pre-compression cycle.

[0051] In this embodiment, the core function of the pre-compression process is to eliminate air gaps between metal sand particles, thereby stabilizing the packing density of the sand in the quantitative storage chamber and preventing differences in actual filling weight for the same volume due to variations in looseness. Simultaneously, the pre-compressed sand exhibits good integrity, is less prone to collapse after discharge, and provides a stable foundation for subsequent leveling. The purely mechanical triggering structure offers stable operation, a fixed pre-compression stroke, and good consistency in pre-compression force, making it suitable for continuous mass production cycles.

[0052] Furthermore, such as Figure 10 As shown, a vibration tapping mechanism 8 is also provided on the outer side of the metering cylinder 31. The vibration tapping mechanism 8 includes: The striking swing unit includes a striking swing arm 81 rotatably mounted on the frame assembly 41 and an elastic striking head 82 elastically disposed at the end of the striking swing arm 81. The striking swing arm 81 and the frame assembly 41 are connected by a return spring 83. As an improvement, the flexible striking head 82 is made of polyurethane, which combines striking force with cushioning and noise reduction.

[0053] The intermittent drive unit includes a drive gear 84 that is coaxially rotatable with the striking rocker arm 81, and an incomplete external gear ring 85 that is sleeved and fixed to the outer wall of the metering cylinder 31; the drive gear 84 and the incomplete external gear ring 85 intermittently mesh and drive the striking rocker arm 81 to swing back and forth to strike the metering cylinder 31.

[0054] It should be noted that the vibration action is synchronized with the rotation of the metering cylinder. When the metering cylinder 31 rotates intermittently, the outer gear ring 85 rotates synchronously with the cylinder. When the teeth of the incomplete outer gear ring 85 mesh with the drive gear 84, it drives the drive gear 84 to rotate, and the striking rocker arm 81 swings coaxially, stretching the return spring 83 to store energy. When the toothless section of the incomplete outer gear ring 85 rotates to the meshing position, the teeth disengage, and the striking rocker arm 81 rebounds rapidly under the tension of the return spring 83. The elastic striking head 82 strikes the outer wall of the metering cylinder 31 to generate high-frequency vibration.

[0055] In this embodiment, by setting up a vibration and tapping mechanism 8, the bridging phenomenon between metal sand particles can be broken by the vibration action, making the sand particles more densely packed and more evenly distributed, further improving the accuracy of quantitative measurement; at the same time, the vibration-assisted pre-compression process makes the sand layer density more uniform. This structure is driven by the rotational power of the quantitative cylinder itself, requiring no additional power source, and is simple and energy-saving.

[0056] Furthermore, the quantitative storage chamber 32 has an inverted conical structure, which facilitates the smooth flow of sand during material feeding without leaving any dead corners; the upper inlet of the feed channel 22 is provided with a guide chamfer to expand the inlet area, which facilitates the smooth flow of metal sand and reduces spillage.

[0057] Furthermore, the spinneret sand cup 10 is carried by a tooling fixture 100, which continuously transports the sand along the circulating tooling conveyor line 101; the metal sand filling device 1 is located on one side of the circulating tooling conveyor line 101 via a two-axis displacement module 9.

[0058] As an improvement, the two-axis displacement module can drive the filling device to adjust its position in the horizontal plane to adapt to the center alignment of sand cups of different specifications.

[0059] Example 2 like Figure 1-4 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows: Furthermore, along the conveying direction of the circulating tooling conveyor line 101, a sand cup feeding device 102, a dust removal device 103, a first mesh feeding device 104, a second mesh feeding device 105, a lower diverter plate feeding device 106, a pressing device 107, and a finished product output device are sequentially arranged to form a closed-loop fully automatic assembly production line. The metal sand filling device 1 is located between the first mesh feeding device 104 and the second mesh feeding device 105.

[0060] Furthermore, the first mesh feeding device 104 is used to assemble the sand cup filter screen and the composite mesh, and the second mesh feeding device 105 is used to assemble the overflow cover and the filter screen; both the first mesh feeding device 104 and the second mesh feeding device 105 are equipped with an adsorption extraction unit 1041 and a gripper extraction unit 1042.

[0061] Furthermore, the circulating tooling conveyor line 101 is also provided with a carrier self-centering mechanism 109. The carrier self-centering mechanism 109 includes two sets of positioning grippers 1091 symmetrically arranged on both sides of the tooling fixture 100. The two sets of positioning grippers 1091 are driven by cylinders to move synchronously in opposite directions, and their translation direction is perpendicular to the flow direction of the circulating tooling conveyor line 101. The contact surface between the positioning gripper 1091 and the spinneret abrasive cup 10 is a V-shaped positioning surface 1092.

[0062] In this embodiment, when the tooling fixture 100 moves to the work station along the conveyor line, the conveyor line lifting and positioning mechanism lifts the fixture away from the conveyor chain. Subsequently, the positioning grippers 1091 on both sides simultaneously clamp the outer wall of the sand cup, and the V-shaped positioning surface 1092 automatically centers, calibrating the sand cup to the center of the work station with high centering repeatability. This mechanism reduces the positional deviation caused by the conveyor gap and the fixture tolerance, providing a unified benchmark for the assembly, filling, and pressing operations at each work station, and is the core foundation for ensuring the assembly accuracy of the entire line.

[0063] Furthermore, the sand cup feeding device 102 includes a feeding separation component 1021 and a material taking and transferring component 1022 that are respectively disposed on both sides of the circulating tooling conveyor line 101; The feeding and separating assembly 1021 includes a vertically arranged storage cylinder 10211 and a horizontally slidable receiving plate 10212 on the lower discharge side of the storage cylinder 10211. The material handling and transfer assembly 1022 includes a first lead screw module 10221 arranged perpendicular to the conveyor line and a pneumatic gripper 10222 slidably mounted on the first lead screw module 10221. It should be noted that the stacked sand cups are stored vertically in the storage cylinder 10211, with the bottom sand cup resting on the receiving tray 10212. The receiving tray 10212 slides horizontally outward under the drive of the cylinder, pulling a single sand cup from the bottom of the storage cylinder to the picking station. The remaining sand cups in the storage cylinder are held by the upper surface of the tray, achieving individual separation. Subsequently, the first lead screw module 10221 drives the pneumatic gripper 10222 to extend, clamp the sand cup, and accurately place it in the tooling fixture 100. The inner diameter of the tooling fixture 100 is slightly larger than the outer diameter of the sand cup, leaving a centering adjustment margin.

[0064] After receiving a single sand cup at the bottom of the storage cylinder 10211, the receiving tray 10212 moves horizontally to the material handling station. The pneumatic gripper 10222 extends to hold the sand cup and transfers it into the contour loading fixture 100. The inner diameter of the loading fixture 100 is slightly larger than the outer diameter of the sand cup.

[0065] Furthermore, the adsorption extraction unit 1041 includes a second lead screw module 10411 arranged laterally along the conveyor line, a first storage rectangular disk 10412 mounted on the second lead screw module 10411, and a first vacuum adsorption assembly 10413 driven by a two-axis displacement module 9. The gripper extraction unit 1042 includes a third lead screw module 10421 arranged laterally along the conveyor line, a second storage rectangular disk 10422 mounted on the third lead screw module 10421, and a pneumatic clamping assembly 10423 driven by a two-axis displacement module 9.

[0066] In this embodiment, for thin, flexible filter screens, vacuum adsorption is used for end-face handling to avoid deformation, edge damage, and mesh stretching caused by gripper clamping. For stiffer mesh pads and flow covers, pneumatic grippers are used to ensure stable gripping. The dual-unit design accommodates the feeding needs of different parts, resulting in a high assembly yield.

[0067] Furthermore, the lower diversion plate loading device 106 includes a fourth lead screw module 1061 arranged laterally along the conveyor line, a third storage rectangular disk 1062 installed on the fourth lead screw module 1061, and a second vacuum adsorption assembly 1063 driven by a two-axis displacement module 9.

[0068] The flow divider is a rigid sealing component. The use of end-face vacuum adsorption ensures that the sealing surface is free of pinch marks and stains, thus guaranteeing the sealing performance after assembly.

[0069] Furthermore, the dust removal device 103 includes a blower air source, a blower channel 1032 connected to the blower air source, and a blower air outlet arranged towards the inside of the sand cup; the blower air outlet is set at the centering position of the tooling fixture 100 and is used to blow away dust and processing debris from the inner wall of the sand cup.

[0070] As an improvement, a spiral nozzle design is adopted, and the blowing airflow spirals upward along the inner wall of the sand cup, effectively removing dust and processing debris from the inner wall and preventing impurities from mixing into the filter layer and affecting the spinning quality.

[0071] Furthermore, the pressing device 107 is a servo pressing press, which is mounted directly above the circulating tooling conveyor line 101 and is used to perform constant pressure pressing and fastening on the pre-assembled spinneret.

[0072] As an improvement, the pressure head is equipped with a floating self-aligning joint and a pressure sensor, which can realize dual-mode pressing and positioning, and perform constant pressure pressing and fastening on the pre-assembled spinneret to ensure that all components are tightly connected without leakage or loosening.

[0073] Furthermore, the finished product output device is a multi-axis transfer robot, which is set at the end of the circulating tooling conveyor line 101. It is used to take out the finished spinneret after pressing and transfer it from the tooling fixture 100 to the finished product collection position. The empty tooling fixture returns to the loading position with the conveyor line and enters the next production cycle.

[0074] Example 3 Components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 3 and Embodiment 1 is as follows: The assembly process based on a special fiber-shaped spinneret assembly system for velour fabric includes the following steps: Step S1, Automatic feeding of sand cups: The stacked sand cups are placed into the storage cylinder, and the receiving tray slides horizontally to complete the separation of a single cup. The pneumatic gripper transfers the separated sand cups to the tooling container on the circulating tooling conveyor line, and the container moves forward intermittently with the conveyor line.

[0075] Step S2, Positioning and Inner Wall Dust Removal: The sand cup is transferred to the dust removal station. After the carrier is lifted and positioned, the carrier's self-centering mechanism aligns and calibrates the sand cup. Then, the spiral blowing nozzle of the dust removal device extends into the inside of the sand cup, and clean compressed air at 0.4~0.6MPa is introduced. The air is blown spirally along the inner wall for 2~3 seconds to remove residual metal shavings and dust. The dust generated by the blowing is collected and discharged by the dust collection hood above.

[0076] Step S3: The bottom mesh is precisely assembled. The sand cup is transferred to the first mesh loading station. After being centered again, the first vacuum adsorption component sequentially adsorbs the sand cup filter and the composite mesh, and precisely places them on the support step surface inside the sand cup. The vacuum adsorption is delayed for several seconds to ensure that the mesh is placed stably without any warping or offset.

[0077] Step S4: Quantitative filling and leveling of metal sand: S4-1, Filling and Metering: The sand cup is transferred to the metal sand filling station, and the lower end of the discharge cylinder extends into the sand cup for positioning; the metal sand is continuously fed into the feed channel, and the feed cylinder rotates. When the feed channel is aligned with the quantitative storage chamber, the metal sand fills the quantitative storage chamber by its own weight, completing the volumetric quantitative metering. S4-2, Pre-compression and vibration: The feeding cylinder continues to rotate, and the quantitative pre-compression component rotates to the top of the quantitative storage chamber. The mechanically triggered pre-compression head presses down to perform constant stroke pre-compression on the sand in the chamber. Simultaneously, the vibration and tapping mechanism intermittently taps the quantitative cylinder wall to compact the sand particles and make the bulk density uniform and stable. S4-3, Unloading: After pre-compression, the feeding cylinder drives the quantitative cylinder to rotate synchronously through the intermittent synchronous transmission component. When the quantitative storage chamber rotates to the top of the unloading through hole, the bottom is open. The pre-compressed metal sand falls into the discharge cylinder and is evenly scattered onto the bottom filter screen of the sand cup through the discharge port. S4-4. Sand Surface Leveling: After the material is unloaded, the cylinder locking assembly clamps the discharge cylinder locking reference. The central rotating shaft drives the contour leveling head to rotate at low speed and enter the discharge port. The cylinder locking assembly releases the clamp on the discharge cylinder. The contour leveling head drives the discharge cylinder to rotate as a whole. The floating scraper scrapes the sand surface to ensure that the flatness of the entire sand surface meets the standard. Finally, the discharge cylinder descends as a whole to compact the scraped metal sand.

[0078] Step S5, Upper Mesh Assembly: The sand cup is transferred to the second mesh loading station. The second mesh loading device sequentially places the upper filter screen and the overflow cover on top of the metal sand layer to complete the stacking of the filter components.

[0079] Step S6, Distributor Plate Loading: The sand cup is transferred to the distributor plate loading station. The second vacuum adsorption component adsorbs the upper surface of the distributor plate and is precisely positioned above the flow cover to ensure that the distribution hole and the flow hole are coaxially aligned.

[0080] Step S7, Constant Pressure Pressing and Fastening: The sand cup flows to the pressing station, and the servo press press presses the distributor plate downward with the set pressing force. After reaching the set pressure, it holds the pressure for 1 to 2 seconds to tightly press the internal components into one piece. Then the press head is reset.

[0081] Step S8, Automatic Output of Finished Products: The finished spinneret after pressing is transferred to the end station. The multi-axis transfer robot grips the finished product and takes it out of the tooling fixture and puts it into the finished product collection box. The empty tooling fixture returns to the loading station with the circulating tooling conveyor line and enters the next production cycle.

[0082] As an improvement, the pressing force is typically set to 5~20kN, which can be adjusted according to product specifications.

[0083] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0084] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0085] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A special fiber-shaped spinneret assembly system for velvet fabric, characterized in that, The device includes a metal sand filling device, which comprises a feeding and distributing mechanism, a quantitative metering mechanism, and a material dropping and leveling mechanism arranged coaxially from top to bottom. The feeding and distributing mechanism includes a solid feeding cylinder, two sets of symmetrical feeding channels that penetrate through the inside of the feeding cylinder, a rotary drive assembly externally placed in the feeding cylinder and driving the feeding cylinder to rotate around an axis, and a quantitative pre-compression assembly disposed between the two sets of feeding channels. The quantitative metering mechanism includes a solid quantitative cylinder and a quantitative storage cavity that runs through the quantitative cylinder and is intermittently connected to the feed channel. The material discharge and leveling mechanism includes a support mounting plate fixedly installed on the frame assembly, a material discharge through hole opened on the support mounting plate and intermittently connected to the quantitative storage chamber, a hollow discharge cylinder rotatably disposed below the support mounting plate, and a discharge port through the lower end face of the discharge cylinder. During operation, metal sand is fed into the feed channel and rotates with the feed cylinder. When the feed channel is aligned and connected with the quantitative storage chamber, the metal sand falls into the quantitative storage chamber. As the feed cylinder continues to rotate, the quantitative pre-compression component moves to the top of the quantitative storage chamber, pre-compresses the metal sand in the chamber, and then resets and detaches. Subsequently, the feeding cylinder drives the metering cylinder to rotate synchronously through the intermittent synchronous transmission component. When the metering storage chamber rotates with the metering cylinder and is aligned and connected with the discharge through hole, the lower obstruction is released, and the metal sand falls into the discharge cylinder through the discharge through hole and is output to the spinneret sand cup through the discharge port. The sand surface leveling mechanism built into the discharge leveling mechanism operates synchronously to complete the leveling operation of the metal sand in the sand cup.

2. The fiber-shaped spinneret assembly system for plush fabric as described in claim 1, characterized in that, The intermittent synchronous transmission assembly includes an arc-shaped guide groove opened on the lower end face of the feed cylinder and a transmission protrusion protruding on the upper end face of the metering cylinder. The transmission protrusion is fitted into the arc-shaped guide groove to achieve intermittent synchronous transmission between the feed cylinder and the metering cylinder.

3. The fiber-shaped spinneret assembly system for plush fabric as described in claim 1, characterized in that, The sanding and leveling mechanism includes: A cylinder locking assembly includes a locking gripper driven by a linear drive cylinder to perform reciprocating linear motion. The contact end face of the locking gripper with the discharge cylinder is provided with an anti-slip friction plate for locking and fixing the discharge cylinder. The rotary leveling assembly includes a central shaft driven by a servo drive motor to rotate, a leveling bracket fixedly mounted on the central shaft, and a contour leveling head elastically slidable below the leveling bracket in the vertical direction. The contour leveling head is contour-fitted to the discharge port and has a floating scraper elastically arranged in the radial direction. One side of the contour leveling head is mounted on the leveling bracket via a hinge assembly. The central shaft vertically passes through the center of the feed cylinder, the metering cylinder, and the discharge cylinder, and is not in contact with the inner wall of each cylinder.

4. The fiber-shaped spinneret assembly system for plush fabric as described in claim 3, characterized in that, The quantitative pre-compression component includes: The pre-press head has an arc-shaped pressing surface at its lower end, and is elastically installed in the receiving and mounting groove of the feed cylinder through a first elastic reset member; A radial transmission unit includes a transmission slide rod that is elastically disposed radially in the accommodating mounting groove, a wedge-shaped drive block fixed to the inner end of the transmission slide rod, and a driven push rod that is connected to the outer end of the transmission slide rod and extends outward from the feed cylinder. The lifting driven block is fixedly installed on the pre-pressing head, and its upper driving surface is inclined, which intermittently abuts against the wedge-shaped driving block. The trigger guide block is fixedly installed on the frame assembly. When the driven push rod rotates to the position of the trigger guide block with the feed cylinder, it moves radially back and forth along the feed cylinder under the guidance of the trigger guide block, driving the wedge drive block to drive the lifting driven block to rise and fall, thereby realizing the quantitative pre-compression action of the pre-compression head.

5. The fiber-shaped spinneret assembly system for plush fabric as described in claim 1, characterized in that, The outer side of the metering cylinder is also provided with a vibration tapping mechanism, which includes: The striking swing unit includes a striking swing arm rotatably mounted on the frame assembly and an elastic striking head elastically disposed at the end of the striking swing arm. The striking swing arm and the frame assembly are connected by a return spring. An intermittent drive unit includes a drive gear that is coaxially rotatable with the striking arm, and an incomplete external gear ring that is sleeved and fixed to the outer wall of the metering cylinder; the drive gear and the incomplete external gear ring intermittently mesh and drive the striking arm to swing back and forth to strike the metering cylinder.

6. The fiber-shaped spinneret assembly system for plush fabric as described in claim 1, characterized in that, The quantitative storage chamber has an inverted conical structure, and a guide chamfer is provided at the upper inlet of the feed channel.

7. The fiber-shaped spinneret assembly system for plush fabric as described in claim 1, characterized in that, The spinneret sand cup is carried by a tooling device, which continuously flows and transports the sand along a circulating tooling conveyor line; the metal sand filling device is set on one side of the circulating tooling conveyor line via a two-axis displacement module.

8. The fiber-shaped spinneret assembly system for plush fabric as described in claim 7, characterized in that, Along the conveying direction of the circulating tooling conveyor line, a sand cup feeding device, a dust removal device, a first mesh feeding device, a second mesh feeding device, a lower diverter plate feeding device, a pressing device, and a finished product output device are sequentially arranged. The metal sand filling device is located between the first mesh feeding device and the second mesh feeding device.

9. The fiber-shaped spinneret assembly system for plush fabric according to claim 8, characterized in that, The first mesh feeding device is used to assemble the sand cup filter screen and the composite mesh, and the second mesh feeding device is used to assemble the overflow cover and the filter screen; both the first mesh feeding device and the second mesh feeding device are equipped with an adsorption extraction unit and a gripper extraction unit.

10. The fiber-shaped spinneret assembly system for plush fabric according to claim 8, characterized in that, The circulating tooling conveyor line is also equipped with a carrier self-centering mechanism. The carrier self-centering mechanism includes two sets of positioning grippers symmetrically arranged on both sides of the tooling. The two sets of positioning grippers are driven by cylinders to move synchronously in opposite directions. Their translation direction is perpendicular to the flow direction of the circulating tooling conveyor line. The contact surface between the positioning gripper and the spinneret abrasive cup is a V-shaped positioning surface.

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