Spinneret filter screen sanding clamping device

Abstract

The utility model relates to a spinning nozzle filter screen sanding clamping device, and relates to the technical field of clamping devices, the spinning nozzle filter screen sanding clamping device comprises a positioning plate, a lower pressing plate and pressing assemblies, the lower pressing plate is located above the positioning plate, and the pressing assemblies are rotationally installed at the two ends of the positioning plate so that the lower pressing plate can be pressed on the positioning plate; the positioning plate is provided with a plurality of storage holes used for storing the spinning nozzle filter screens, the ends of the spinning nozzle filter screens extend out of the storage holes, the lower pressing plate is provided with a plurality of mounting holes connected with the storage holes in a matched mode, and the storage holes correspond to the mounting holes one to one. The side, close to the positioning plate, of the mounting hole is fixedly provided with a jigger pin used for abutting against the spinning nozzle filter screen, and a connecting piece used for being connected with the jigger pin is arranged in the mounting hole. The spinning nozzle filter screen sanding device has the advantages that multiple spinning nozzle filter screens can be clamped at a time, the overall efficiency of the sanding procedure is remarkably improved, the requirement for large-scale production is met, the problem that the efficiency of traditional manual single-piece operation is extremely low is effectively solved, and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of clamping devices, and in particular to a spinneret filter screen sanding clamping device. Background Technology

[0002] In the chemical fiber production process, the spinneret filter plays a crucial role in the quality of the produced fiber products. However, the bottom surface of the produced spinneret filter often has bulges, which must be sanded to achieve the specified flatness. This process is extremely important for the smooth progress of the subsequent punching process and for ensuring the consistency of the hole shape. If the bulges are not effectively sanded, some areas will be difficult to punch through, or the punched holes will be irregular in shape, seriously affecting the filtration performance of the filter and thus reducing the quality of the chemical fiber products.

[0003] Currently, the traditional sanding method involves operators holding a single spinneret filter and sanding it flat on a sheet of sandpaper to meet the flatness requirements. This manual, single-piece operation is extremely inefficient. Under the demands of large-scale production, this inefficient sanding method severely restricts production progress and increases production costs.

[0004] Regarding the aforementioned technologies, the inventors believe that the method of having an operator hold a single spinneret filter product and grind it smooth on sandpaper is extremely inefficient. Utility Model Content

[0005] To address the problem of extremely low efficiency in manually sanding single spinneret filter products on sandpaper, this application provides a spinneret filter sanding clamping device.

[0006] This application provides a spinneret filter screen sanding clamping device, which adopts the following technical solution:

[0007] A spinneret filter screen sanding clamping device includes a positioning plate, a lower pressure plate, and a clamping assembly. The lower pressure plate is located above the positioning plate. The clamping assembly is rotatably mounted on both ends of the positioning plate so that the lower pressure plate presses against the positioning plate. The positioning plate has multiple placement holes for placing the spinneret filter screen, and the end of the spinneret filter screen extends out of the placement holes. The lower pressure plate has multiple mounting holes that mate with the placement holes. Each placement hole corresponds to one mounting hole. A top pin for pressing the spinneret filter screen is fixedly installed on the side of the mounting hole near the positioning plate. A connector for connecting with the top pin is provided in the mounting hole.

[0008] By adopting the above technical solution, the positioning plate provides a placement position for the spinneret filter, serving to position the spinneret filter and also providing an installation position for the clamping assembly. The positioning plate and the lower pressure plate are tightly fitted together through the clamping assembly, and the top pin clamps the spinneret filter. The top pin is connected with the connecting piece to ensure that the spinneret filter remains stable during the sanding process, avoiding shaking and displacement, thus ensuring the stability of the sanding quality. It can simultaneously clamp multiple spinneret filters, thereby enabling multiple spinneret filters to be sanded at the same time. This changes the inefficient mode of traditional manual single-piece sanding, greatly improving clamping efficiency and thus improving the overall efficiency of the sanding operation.

[0009] Optionally, the depth of the placement hole is less than the depth of the spinneret filter.

[0010] By adopting the above technical solution, the spinneret filter screen is placed behind the storage hole with a sufficient protrusion, which facilitates direct sanding of the protruding part without the need for additional adjustment of the spinneret filter screen position, thus improving the convenience and accuracy of sanding operation.

[0011] Optionally, the positioning plate is provided with a groove, the lower pressure plate is provided with a boss that mates with the groove, a plurality of the placement holes are located in the groove, and a plurality of the mounting holes are located on the boss.

[0012] By adopting the above technical solution, the cooperation between the groove and the boss plays a role in precise positioning, ensuring that the lower pressure plate and the positioning plate can be accurately aligned, so that the mounting hole and the placement hole correspond precisely, further improving the accuracy and stability of the spinneret filter screen clamping.

[0013] Optionally, the top pin includes a fixing member and a top member for supporting the spinneret filter screen. The top member is connected to the fixing member, the fixing member is installed in the mounting hole, and the top member is located outside the mounting hole and extends into the spinneret filter screen.

[0014] By adopting the above technical solution, the fixing component serves as the part connecting the top pin and the lower pressure plate. The fixing component securely fixes the top pin to the lower pressure plate, ensuring that the top pin will not loosen or fall off during the entire sanding process. The top component provides support from inside the spinneret filter screen and works together with the positioning plate and the lower pressure plate to enhance the clamping effect of the spinneret filter screen, effectively preventing it from deforming during the sanding process and ensuring the integrity of the spinneret filter screen and the sanding quality.

[0015] Optionally, the top of the fastener is provided with a threaded hole for connection with the connector.

[0016] By adopting the above technical solution, the threaded hole facilitates a reliable connection between the connector and the fixing part. The threaded connection has good tightness and stability, ensuring a firm connection between the top pin and the connector, thereby ensuring that the top pin can stably press against the spinneret filter screen.

[0017] Optionally, the diameter of the top material is smaller than the diameter of the spinneret filter screen.

[0018] By adopting the above technical solution, the top material can be smoothly inserted into the spinneret filter screen, avoiding damage to the filter screen due to the excessive diameter of the top material. At the same time, it provides uniform internal support for the spinneret filter screen, ensuring the clamping effect.

[0019] Optionally, the clamping assembly includes a rotating shaft rotatably mounted on the end of the positioning plate, a screw pin passing through the rotating shaft, and a wing nut threaded onto the screw pin to press the lower pressure plate against the positioning plate.

[0020] By adopting the above technical solution, the rotating shaft screw pin acts as a bridge connecting the rotating shaft and the wing nut, providing rotational support for the entire clamping action. The screw pin acts as a bridge connecting the rotating shaft and the wing nut. The rotating shaft allows the screw pin and the wing nut connected to it to make circular motion around the rotating shaft, thereby realizing the opening and closing action of the lower pressure plate relative to the positioning plate, which facilitates the insertion and removal of the spinneret filter screen. When the wing nut is rotated, the wing nut moves and pushes the lower pressure plate closer to the positioning plate, thereby realizing the clamping of multiple spinneret filter screens on the positioning plate.

[0021] Optionally, the positioning plate has first positioning grooves at both ends for engaging the screw pins, and the lower pressure plate has second positioning grooves at both ends for engaging the screw pins, with the first positioning grooves located below the second positioning grooves.

[0022] By adopting the above technical solution, the first positioning groove and the second positioning groove play a positioning and limiting role for the screw pin, ensuring the stability of the pressing assembly during operation, making the pressing of the lower pressure plate and the positioning plate more precise, and ensuring that the spinneret filter screen is firmly clamped.

[0023] Optionally, both the first positioning groove and the second positioning groove are U-shaped grooves.

[0024] By adopting the above technical solution, the U-shaped groove limits the screw pin, enhances the positioning effect of the screw pin, further improves the stability and reliability of the clamping assembly, and reduces the clamping instability caused by the shaking of the screw pin.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. This device, through the coordinated operation of positioning plates, lower pressure plates, clamping components, and related parts such as placement holes, mounting holes, top pins, and connectors, simultaneously clamps multiple spinneret filter screens. These multiple spinneret filter screens are firmly fixed during the sanding process, preventing shaking and deformation, significantly shortening the clamping time for a single filter screen. Compared to traditional manual single-piece sanding, this method significantly improves overall sanding efficiency, meeting the needs of large-scale production. Simultaneously, the coordinated design of each component ensures clamping accuracy, resulting in a sanded filter screen with the required flatness, providing a good foundation for subsequent punching processes and helping to ensure consistent hole shapes, thereby improving the quality of chemical fiber products.

[0027] 2. The depth of the placement hole in this device is less than the depth of the spinneret filter screen, so that after the spinneret filter screen is placed, a part of it can protrude from the placement hole. This protruding part of the filter screen can be directly subjected to sanding treatment without additional position adjustment to ensure that the part to be processed is exposed, thereby improving sanding efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the spinneret filter screen sanding clamping device according to an embodiment of this application;

[0029] Figure 2 This is an exploded view of the spinneret filter screen sanding clamping device according to an embodiment of this application;

[0030] Figure 3 This is a cross-sectional view of the spinneret filter screen sanding clamping device according to an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Positioning plate; 11. Groove; 12. Storage hole; 13. First positioning groove; 2. Lower pressure plate; 21. Boss; 22. Mounting hole; 23. Second positioning groove; 24. Top pin; 241. Fixing component; 242. Top component; 25. Connecting component; 3. Clamping assembly; 31. Rotating shaft; 32. Screw pin; 33. Wing nut; 4. Spinneret filter screen. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0037] This application discloses a spinneret filter screen sanding clamping device, referring to... Figure 1 and Figure 2 The spinneret filter screen sanding clamping device includes a positioning plate 1, a lower pressure plate 2, and a clamping assembly 3. The lower pressure plate 2 is located above the positioning plate 1. The clamping assembly 3 is rotated at both ends of the positioning plate 1 to press the lower pressure plate 2 onto the positioning plate 1. The positioning plate 1 has multiple placement holes 12 for placing the spinneret filter screen 4. The end of the spinneret filter screen 4 extends out of the placement hole 12. The lower pressure plate 2 has multiple mounting holes 22 that cooperate with and connect to the placement holes 12. The multiple placement holes 12 correspond one-to-one with the multiple mounting holes 22. A top pin 24 for pressing the spinneret filter screen 4 is fixedly installed on the side of the mounting hole 22 near the positioning plate 1. A connector 25 for connecting with the top pin 24 is provided in the mounting hole 22.

[0038] In this spinneret filter sanding clamping device, the positioning plate 1 is the basic support component. Multiple placement slots are provided on the positioning plate 1 to offer placement positions for the spinneret filter 4, thus positioning the filter 4. Simultaneously, clamping components 3 are rotatably mounted at both ends of the positioning plate 1, providing installation positions for the clamping components 3. The positioning plate 1 ensures that the spinneret filter 4 has an accurate placement position during clamping. Multiple placement holes 12 allow for the simultaneous clamping of multiple spinneret filters 4, improving the efficiency of clamping and subsequent sanding.

[0039] The lower pressure plate 2 works in conjunction with the positioning plate 1. The multiple mounting holes 22 on the lower pressure plate 2 correspond one-to-one with the placement holes 12 on the positioning plate 1. The connecting piece 25 set in the mounting hole 22 and the top material pin 24 fixedly installed near the side of the positioning plate 1 work together to press the spinneret filter 4, firmly clamping the spinneret filter 4 between the two, ensuring that the spinneret filter 4 will not shake during the sanding operation, thereby improving the accuracy and quality of sanding.

[0040] The clamping assembly 3 is rotatably mounted on both ends of the positioning plate 1. By operating the clamping assembly 3, the lower pressure plate 2 can be pressed onto the positioning plate 1, thereby clamping and fixing the spinneret filter screen 4. The clamping assembly 3 allows for convenient and quick clamping and loosening of multiple spinneret filter screens 4, improving clamping efficiency and the efficiency of the subsequent sanding operation. Compared with traditional manual single-piece operation, it can complete the clamping and sanding of the spinneret filter screen 4 more quickly, which is conducive to improving overall production efficiency.

[0041] Multiple placement holes 12 are formed on the positioning plate 1 for placing multiple spinneret filters 4. The ends of the spinneret filters 4 extend out of the placement holes 12 to facilitate subsequent sanding operations. The placement holes 12 ensure that the spinneret filters 4 have an accurate placement position on the positioning plate 1 and allow the parts that need to be sanded to be properly exposed, making it easy for sanding tools to grind them, thereby meeting the flatness requirements.

[0042] Multiple mounting holes 22 are formed on the lower pressure plate 2, which cooperate with the placement holes 12 on the positioning plate 1 to provide installation space for the top pin 24 and the connecting piece 25, so that the lower pressure plate 2 can fit tightly with the positioning plate 1 to support and clamp the spinneret filter screen 4. The corresponding arrangement of the mounting holes 22 and the placement holes 12 ensures the stability and accuracy of the clamping device for the spinneret filter screen 4, and ensures that the spinneret filter screen 4 will not shift or loosen during the sanding process.

[0043] The top pin 24 is fixedly installed on the side of the mounting hole 22 near the positioning plate 1 to tighten the spinneret filter screen 4, so that the spinneret filter screen 4 is firmly fixed between the positioning plate 1 and the lower pressure plate 2 during the clamping process, preventing the spinneret filter screen 4 from shaking during the sanding process and ensuring the sanding quality.

[0044] The connector 25 is located inside the mounting hole 22 and connects to the top pin 24, which enhances the stability of the connection between the top pin 24 and the lower pressure plate 2. The connector 25 can be a screw. The connector 25 assists the top pin 24 in better tightening the spinneret filter 4, optimizes the clamping effect of the clamping device on the spinneret filter 4, ensures the stability of the spinneret filter 4 during sanding, and makes the assembly and disassembly of the device more convenient.

[0045] This spinneret filter screen sanding clamping device, through the coordinated operation of the positioning plate 1, the lower pressure plate 2, the clamping assembly 3, and related components such as the placement hole 12, the mounting hole 22, the top pin 24, and the connector 25, achieves rapid and accurate clamping of multiple spinneret filter screens 4, providing a stable processing foundation for the sanding process. Compared with the traditional method of operators manually sanding a single spinneret filter screen 4 on sandpaper, this clamping device greatly improves clamping efficiency, enabling the clamping of multiple spinneret filter screens 4 at once, thereby significantly improving the overall efficiency of the sanding process, meeting the needs of large-scale production, effectively solving the problem of extremely low efficiency in traditional manual single-piece operation, reducing production costs, and ensuring the sanding quality of the spinneret filter screens 4. This provides a guarantee for the smooth progress of the subsequent punching process and ensures the consistency of the hole shape, thereby improving the quality of chemical fiber products.

[0046] The depth of the placement hole 12 is less than the depth of the spinneret filter 4. The placement hole 12 is used to place the spinneret filter 4. Its depth is less than the depth of the spinneret filter 4, so that after the spinneret filter 4 is placed, a part of it can protrude from the placement hole 12. This part of the filter can be directly sanded without additional adjustment of its position to ensure that the part to be processed is exposed, thereby improving the sanding efficiency.

[0047] The positioning plate 1 is provided with a groove 11, and the lower pressure plate 2 is provided with a boss 21 that mates with the groove 11. Multiple placement holes 12 are located in the groove 11, and multiple mounting holes 22 are located on the boss 21. The groove 11 provides a specific placement area for the placement holes 12, so that multiple placement holes 12 can be concentrated in this area. The groove 11 mates with the boss 21 on the lower pressure plate 2 to position the lower pressure plate 2, ensuring that the lower pressure plate 2 and the positioning plate 1 are accurately aligned during installation.

[0048] The boss 21 on the lower pressure plate 2 fits tightly with the groove 11 on the positioning plate 1, achieving accurate alignment between the lower pressure plate 2 and the positioning plate 1, ensuring that the mounting holes 22 and the storage holes 12 correspond one-to-one. In addition, the boss 21 carries multiple mounting holes 22, providing installation positions for the mounting holes 22, so that the mounting holes 22 can accurately correspond to the storage holes 12 in the groove 11.

[0049] The precise fit effectively prevents misalignment of the lower pressure plate 2 and the positioning plate 1 during the clamping process, ensuring that the top pin 24 can accurately press against multiple corresponding spinneret filter screens 4, enhancing the stability of the clamping, thereby improving the fixation of the position of the spinneret filter screen 4 during the sanding process and ensuring the sanding quality.

[0050] refer to Figure 2 and Figure 3 The top pin 24 includes a fixing member 241 and a top member 242 for supporting the spinneret filter 4. The top member 242 is connected to the fixing member 241, which is installed in the mounting hole 22. The top member 242 is located outside the mounting hole 22 and extends into the spinneret filter 4. The fixing member 241 serves as the part connecting the top pin 24 to the lower pressure plate 2. The fixing member 241 is installed in the mounting hole 22, which securely fixes the top pin 24 to the lower pressure plate 2, ensuring that the top pin 24 will not loosen or fall off during the entire sanding process. At the same time, it provides support and positioning for the top member 242, enabling the top member 242 to be accurately aligned with the spinneret filter 4, providing stable clamping conditions for the sanding operation.

[0051] The top support component 242 is the part that directly contacts and provides support to the spinneret filter 4. Located outside the mounting hole 22 and extending into the spinneret filter 4, it applies support to the interior of the spinneret filter 4, ensuring it is securely clamped between the positioning plate 1 and the lower pressure plate 2, preventing shaking or displacement during sanding. This direct support mechanism of the top support component 242 greatly enhances the stability of the clamping, effectively overcoming friction and vibration generated during sanding, ensuring the spinneret filter 4 maintains an accurate position throughout the sanding process, thereby improving the precision and quality of sanding.

[0052] The fixing part 241 and the top part 242 of the top pin 24 cooperate with each other to form an effective support and fastening structure for the spinneret filter screen 4. It is one of the key components of the clamping device to achieve stable clamping of the spinneret filter screen 4. It works in conjunction with other components such as the positioning plate 1 and the lower pressure plate 2 to ensure the smooth progress of the sanding process, which in turn helps the subsequent punching process to proceed smoothly. It can effectively ensure the consistency of the hole shape and thus improve the quality of chemical fiber products.

[0053] The top of the fixing component 241 is provided with a threaded hole for connection with the connecting component 25. This threaded hole serves as the connection hub between the fixing component 241 and the connecting component 25, and is a crucial element ensuring the overall function of the top pin 24 and the normal operation of the spinneret filter screen sanding clamping device. It allows the fixing component 241 of the top pin 24 to tightly engage with the connecting component 25, thereby forming a complete and stable clamping structure with the bottom pressure plate 2 and other related components, ensuring effective clamping and positioning of the spinneret filter screen 4. The threaded hole makes the connection between the fixing component 241 and the connecting component 25 more secure, capable of withstanding various forces generated during sanding, such as friction and vibration impact, ensuring that the top pin 24 maintains a stable position and state when clamping the spinneret filter screen 4. Simultaneously, the presence of the threaded hole facilitates the assembly and disassembly of the entire device, making maintenance and component replacement easier.

[0054] The diameter of the top material 242 is smaller than the diameter of the spinneret filter screen 4, which allows the top material 242 to easily extend into the spinneret filter screen 4. The top material 242 supports the spinneret filter screen 4 from the inside by applying a supporting force to the inner wall of the spinneret filter screen 4, and assists the positioning plate 1 and the lower pressure plate 2 in clamping the spinneret filter screen 4, preventing the spinneret filter screen 4 from deforming, shaking or shifting during clamping and sanding, and ensuring the accuracy and effect of sanding.

[0055] The pressing assembly 3 includes a rotating shaft 31, which is rotatably mounted on the end of the positioning plate 1. A screw pin 32 passes through the rotating shaft 31, and a wing nut 33 is threaded onto the screw pin 32 to press the lower pressure plate 2 onto the positioning plate 1. The rotating shaft 31 serves as the core rotating component of the pressing assembly 3, providing rotational support for the entire pressing action. The rotating shaft 31 allows the screw pin 32 and the wing nut 33 connected to it to move in a circular motion around the rotating shaft 31, thereby realizing the opening and closing action of the lower pressure plate 2 relative to the positioning plate 1, which facilitates the insertion and removal of the spinneret filter screen 4.

[0056] The screw pin 32 acts as a bridge connecting the rotating shaft 31 and the wing nut 33. The screw pin 32 transmits the rotational force of the wing nut 33 to the lower pressure plate 2, enabling the lower pressure plate 2 to press against the positioning plate 1. During the rotation of the rotating shaft 31, the screw pin 32 restricts the position of the wing nut 33, preventing it from sliding or falling off the rotating shaft 31, and ensuring that the wing nut 33 can accurately act on the lower pressure plate 2.

[0057] The wing nut 33 is threadedly connected to the screw pin 32. When the wing nut 33 is rotated, the thread transmission principle causes the wing nut 33 to move axially along the screw pin 32. As the wing nut 33 moves, it pushes the lower pressure plate 2 closer to the positioning plate 1, thereby pressing the multiple spinneret filter screens 4 on the positioning plate 1. The wing-shaped design allows the operator to rotate it directly by hand without the need for additional tools, and facilitates quick adjustment of the clamping force.

[0058] The wing nut 33 can flexibly adjust the pressure of the lower pressure plate 2 on the positioning plate 1 according to actual needs, ensuring that the spinneret filter screen 4 is firmly clamped, while avoiding damage to the filter screen due to excessive pressure; the setting of the wing nut 33 improves the efficiency of clamping and disassembly, and operators can quickly complete the clamping and loosening operations of the spinneret filter screen 4, adapting to the needs of large-scale production.

[0059] The clamping assembly 3 can press and release the lower pressure plate 2 against the positioning plate 1, thereby firmly clamping the spinneret filter screen 4 between the two, providing a stable processing foundation for the sanding process. It works together with the positioning plate 1, the lower pressure plate 2 and other components to complete the positioning and fixing of the spinneret filter screen 4, ensuring that the filter screen will not shift or shake during the sanding process.

[0060] The use of clamping component 3 greatly improves the clamping efficiency of spinneret filter screen 4. Compared with the traditional manual single-piece clamping method, it can quickly and accurately complete the clamping operation of multiple filter screens, meeting the needs of large-scale production. It ensures the stability and reliability of clamping, so that the spinneret filter screen 4 maintains a good fixed state during the sanding process, which is conducive to improving the sanding quality, ensuring that the flatness of the filter screen meets the requirements, and thus improving the quality of subsequent punching processes and the quality of chemical fiber products.

[0061] The positioning plate 1 has first positioning grooves 13 at both ends for engaging the screw pins 32, and the lower pressure plate 2 has second positioning grooves 23 at both ends for engaging the screw pins 32. The first positioning grooves 13 are located below the second positioning grooves 23. The first positioning grooves 13 provide a specific installation position for the screw pins 32, restricting the position of the screw pins 32 at the end of the positioning plate 1, so that the screw pins 32 can maintain a relatively stable positional relationship during the rotation of the rotating shaft 31, ensuring the stability of the entire clamping assembly 3. The second positioning grooves 23 correspond to and are located above the first positioning grooves 13, and are also used for engaging the screw pins 32. Together with the first positioning grooves 13, they position the screw pins 32. When the rotating shaft 31 rotates and drives the lower pressure plate 2 to press down, it can guide the lower pressure plate 2 to accurately fit against the positioning plate 1, so that the mounting hole 22 and the placement hole 12 are better aligned, ensuring that the top material pin 24 can accurately press against the spinneret filter screen 4.

[0062] The first positioning groove 13 and the second positioning groove 23 ensure that when the rotating shaft 31 drives the lower pressure plate 2 to press down, the lower pressure plate 2 can smoothly approach the positioning plate 1 along the axial direction of the screw pin 32, achieving a precise pressing action. At the same time, the upper second positioning groove 23 and the lower first positioning groove 13 cooperate to provide a vertical limit for the screw pin 32, preventing the screw pin 32 from moving up and down during operation, making the entire pressing process more stable and precise, further enhancing the stability and reliability of the clamping device, ensuring the consistency of the spinneret filter screen 4 clamping, and providing a good foundation for the sanding process.

[0063] Both the first positioning groove 13 and the second positioning groove 23 are U-shaped grooves. The side walls of the U-shaped grooves prevent the screw pin 32 from wobbling left and right in the horizontal direction. That is, the cooperation between the U-shaped groove and the screw pin 32 ensures that when the rotating shaft 31 drives the clamping assembly 3 to move, the screw pin 32 can be stably placed in the groove, ensuring the accurate relative position between the positioning plate 1 and the lower pressure plate 2, thereby ensuring the secure clamping of the spinneret filter screen 4. During the clamping and sanding process, there will be no displacement due to external forces, thus ensuring the reliability of the spinneret filter screen 4 clamping and providing a stable foundation for the sanding process.

[0064] The usage process of the spinneret filter screen sanding clamping device according to an embodiment of this application is as follows:

[0065] Place the positioning plate 1 on a suitable workbench to ensure its stable position;

[0066] Multiple spinneret filters 4 are placed one by one into the placement hole 12 of the positioning plate 1. The placement hole 12 is used to initially position them. Since the depth of the placement hole 12 is less than the depth of the spinneret filter 4, the spinneret filter 4 will have a suitable part protruding, which is convenient for subsequent sanding.

[0067] Place the lower pressure plate 2 above the positioning plate 1, aligning the protrusion 21 on the lower pressure plate 2 with the groove 11 on the positioning plate 1, while ensuring that the mounting hole 22 on the protrusion 21 corresponds one-to-one with the placement hole 12 in the groove 11; at this time, the second positioning groove 23 at both ends of the lower pressure plate 2 should also be aligned vertically with the first positioning groove 13 at both ends of the positioning plate 1.

[0068] The screw pin 32 is passed through the rotating shaft 31 in sequence, and its two ends are respectively engaged in the first positioning groove 13 at both ends of the positioning plate 1 and the second positioning groove 23 at both ends of the lower pressure plate 2. The U-shaped first positioning groove 13 and second positioning groove 23 limit the screw pin 32 from three directions, preventing it from moving arbitrarily in the horizontal and vertical directions, and ensuring the stability of the entire clamping assembly 3;

[0069] The operator holds the wing nut 33 and threads it onto the screw pin 32. By rotating the wing nut 33, the operator uses the thread transmission principle to move the wing nut 33 axially along the screw pin 32. As the wing nut 33 rotates, the lower pressure plate 2 gradually approaches the positioning plate 1 and finally presses against the positioning plate 1. During this process, the ejector pin 24 in the mounting hole 22, with its ejector component 242 extending into the spinneret filter 4, supports the spinneret filter 4 from the inside. Together with the positioning plate 1, they firmly clamp the spinneret filter 4 between them. Multiple connectors 25 are installed one by one into the ejector pin 24 in each mounting hole 22 to achieve the pressing operation of each spinneret filter 4 on the positioning plate 1.

[0070] The entire device with the spinneret filter 4 clamped is transferred to the sanding equipment. The part of the spinneret filter 4 extending out of the placement hole 12 is sanded. Since the spinneret filter 4 is precisely positioned and firmly clamped in the clamping device, the sanding equipment can sand it evenly and stably, ensuring that the flatness after sanding meets the production requirements.

[0071] After sanding, remove multiple connectors 25, and rotate the wing nut 33 in the opposite direction to move it along the axial direction of the screw pin 32, gradually loosening the pressure between the lower pressure plate 2 and the positioning plate 1. When the wing nut 33 is loosened to a certain extent, the lower pressure plate 2 separates from the positioning plate 1, at which point the spinneret filter 4 can be removed from the clamping device, completing the entire clamping and sanding process. Subsequently, the next batch of spinneret filters 4 can be clamped and sanded.

[0072] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A spinneret filter screen sanding clamping device, characterized in that: The device includes a positioning plate (1), a lower pressure plate (2), and a pressing assembly (3). The lower pressure plate (2) is located above the positioning plate (1). The pressing assembly (3) is rotatably installed at both ends of the positioning plate (1) so that the lower pressure plate (2) presses against the positioning plate (1). The positioning plate (1) has multiple placement holes (12) for placing the spinneret filter (4). The end of the spinneret filter (4) extends out of the placement holes (12). The lower pressure plate (2) has multiple mounting holes (22) that cooperate with and connect to the placement holes (12). The multiple placement holes (12) correspond one-to-one with the multiple mounting holes (22). A top pin (24) for pressing the spinneret filter (4) is fixedly installed on the side of the mounting hole (22) near the positioning plate (1). A connector (25) for connecting with the top pin (24) is provided in the mounting hole (22).

2. The spinneret filter screen sanding clamping device according to claim 1, characterized in that: The depth of the placement hole (12) is less than the depth of the spinneret filter (4).

3. The spinneret filter screen sanding clamping device according to claim 1, characterized in that: The positioning plate (1) is provided with a groove (11), the lower pressure plate (2) is provided with a boss (21) that is connected to the groove (11), a plurality of the placement holes (12) are located in the groove (11), and a plurality of the mounting holes (22) are located on the boss (21).

4. The spinneret filter screen sanding clamping device according to claim 1, characterized in that: The top pin (24) includes a fixing member (241) and a top member (242) for supporting the spinneret filter (4). The top member (242) is connected to the fixing member (241). The fixing member (241) is installed in the mounting hole (22). The top member (242) is located outside the mounting hole (22) and extends into the spinneret filter (4).

5. The spinneret filter screen sanding clamping device according to claim 4, characterized in that: The top of the fastener (241) is provided with a threaded hole for connection with the connector (25).

6. The spinneret filter screen sanding clamping device according to claim 4, characterized in that: The diameter of the top material (242) is smaller than the diameter of the spinneret filter (4).

7. The spinneret filter screen sanding clamping device according to claim 1, characterized in that: The pressing assembly (3) includes a rotating shaft (31), which is rotatably mounted on the end of the positioning plate (1). A screw pin (32) is threaded through the rotating shaft (31), and a wing nut (33) is threaded onto the screw pin (32) to press the lower pressure plate (2) onto the positioning plate (1).

8. The spinneret filter screen sanding clamping device according to claim 7, characterized in that: The positioning plate (1) has a first positioning groove (13) at both ends for engaging the screw pin (32), and the lower pressure plate (2) has a second positioning groove (23) at both ends for engaging the screw pin (32). The first positioning groove (13) is located below the second positioning groove (23).

9. The spinneret filter screen sanding clamping device according to claim 8, characterized in that: Both the first positioning groove (13) and the second positioning groove (23) are U-shaped grooves.

Images