Yarn filtering device

Abstract

The invention relates to the technical field of yarn filters, in particular to a yarn filtering device which is characterized in that the yarn filtering device comprises a yarn guiding arm used for guiding in yarn, and an air pipe mounting opening is formed in the yarn guiding arm; the device further comprises a quick release seat. The limiting element is arranged on one side of the quick release seat and matched with the air pipe mounting opening in an inserted mode, and the quick release seat is movably connected to the yarn guide arm in a clamped mode; the magnetic attraction part is arranged on the quick release seat, and when the limiting element is clamped to the yarn guide arm, the quick release seat is magnetically attracted and fixed to the yarn guide arm through the magnetic attraction part; the filter element is arranged on the quick release seat and provided with a filter gap for the yarn to penetrate through, and the problem that the filter precision of the yarn with the precision smaller than 0.4 mm is inconvenient to replace and adjust is solved.

Description

Technical Field

[0001] The invention relates to the technical field of yarn filters, and in particular to a yarn filter device. Background Art

[0002] A yarn filter is a device used to clean the yarn itself during the cloth forming process. For example, in the process of spinning cotton fibers into yarn, impurities such as neps and hairiness are inevitable in the fibers. The above defects will cause horizontal stripes, hair balls and other phenomena on the cloth, and even affect the gloss, sizing and dyeing and printing effects of the cloth, thereby affecting the forming quality of the cloth. In this case, the yarn storage device of the loom usually has a yarn filtering function to remove impurities such as neps and hairiness to prevent them from entering the machine with the yarn and then being brought into the cloth.

[0003] For example, a utility model patent with patent announcement number CN2357019Y discloses a yarn filter for a yarn storage and feeding device, which is arranged between the yarn entry guide eye and the yarn presser on the yarn entry side of the yarn feeding device; the yarn filter includes a plate body, which is punched out of a metal plate, and has a fixing hole in the center of the plate body, and the plate body is a polygonal structure, and has a yarn filter groove on its periphery, and the yarn filter groove penetrates into the interior of the plate body, and the yarn filter groove holds the yarn in the yarn filter groove and does not slip; based on the above-mentioned structural arrangement, in the spinning process, the yarn first moves from the yarn entry guide eye to the yarn filter groove, and the size of the yarn filter groove is relatively narrow. In the process of the yarn passing through the yarn filter groove, the plate body can scrape off impurities, thereby preventing impurities from following the yarn into the loom and the cloth, thereby achieving a yarn filtering effect.

[0004] However, the current yarn filter device still has many defects. For example, in a loom, hundreds or even thousands of fibers are usually needed to be spun. Due to the large demand for yarn, a large number of yarn storage devices are usually set up accordingly, and each yarn storage device is equipped with a corresponding yarn filter device; however, different products have different filtering accuracy requirements. In the actual production process, in order to adapt to product changes, the filtering accuracy needs to be adjusted; the specific adjustment process is as follows: first, the equipment needs to be stopped, and then the yarn is cut off, and the plates in different yarn filter devices are adjusted one by one, and the commonly used minimum filtering gap is 0.4mm, which is less than A 0.4mm yarn filter device is usually not possible due to the difficulty of the production process. Even if it is made by other methods, the yarn must be cut first, and then the original yarn filter device must be removed with a screwdriver to replace the plate. Because the yarn storage device is usually set at a machine table above 1.8 meters high, it is difficult to operate, and even the entire yarn storage device must be removed to replace the plate, and finally the yarn storage device and yarn threading must be reinstalled. The above replacement steps are complicated, and due to the large number of yarns, the replacement work is huge. There is a problem of inconvenience in quickly changing and adjusting the yarn filtering accuracy, which has a great impact on the production efficiency of the product.

[0005] Therefore, it is necessary to improve the existing technology.

[0006] The above information is presented as background information only to assist with understanding the present disclosure and no determination or admission is made as to whether any of the above may be used as prior art with respect to the present disclosure. Summary of the invention

[0007] The invention provides a yarn filtering device to solve the problem of inconvenience in rapid replacement and adjustment of yarn filtering accuracy in the prior art.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A yarn filtering device comprises a yarn guide arm for introducing yarn, wherein the yarn guide arm is provided with an air duct mounting opening;

[0010] Also includes quick-release seat;

[0011] A limiting element is arranged on one side of the quick-release seat, plugged and matched with the air duct installation opening, and enables the quick-release seat to be movably connected to the yarn guide arm;

[0012] A magnetic attraction member is arranged on the quick-release seat, and when the limiting element is clamped to the yarn guide arm, the magnetic attraction member magnetically fixes the quick-release seat on the yarn guide arm;

[0013] and a filter element, which is arranged on the quick-release seat and has a filter gap for the yarn to pass through.

[0014] Preferably, the spacing of the filtering gaps is less than or equal to 0.2 mm.

[0015] Preferably, the filter element comprises:

[0016] A first filter sheet, disposed on the quick-release seat, having a first edge;

[0017] And a second filter plate is arranged on the quick-release seat, having a second edge arranged parallel to the first edge, the first edge and the second edge forming the filter gap, and the gap spacing of the filter gap is 0.2mm, 0.15mm or 0.1mm.

[0018] Preferably, one end of the first filter is away from the quick-release seat, and a hook portion is provided on the end of the first filter away from the quick-release seat, and an anti-slip gap connected to the filtering gap is formed between the hook portion and the second filter.

[0019] Preferably, smooth polished surfaces are respectively provided at relative positions of the first edge and the second edge.

[0020] Preferably, the first filter plate and the second filter plate are respectively fixed on the quick-release seat by threaded fasteners.

[0021] Preferably, a positioning block is provided on the quick-release seat, and the positioning block is located between the first filter plate and the second filter plate. The first filter plate and the second filter plate are respectively provided with a bayonet that engages with the positioning block, and the positioning block is used to position the mutual setting distance between the first filter plate and the second filter plate.

[0022] Preferably, the quick-release seat is provided with a first slot, and the first filter sheet is provided with a first elastic buckle movably connected with the first slot;

[0023] The quick-release seat is provided with a second slot, and the second filter sheet is provided with a second elastic buckle movably buckled with the second slot.

[0024] Preferably, the limiting element comprises:

[0025] A clamping seat connected to the quick-release seat, wherein the length of the clamping seat is smaller than the opening length of the air duct installation port;

[0026] A clamping strip is connected to a side of the clamping seat away from the quick-release seat, and two ends of the clamping strip extend to opposite sides of the clamping seat respectively. The length of the clamping strip is greater than the opening length of the air duct mounting port. A recess is formed between the clamping strip and the clamping seat, and the recess is movably engaged with the edge of the air duct mounting port.

[0027] Preferably, the limiting element comprises two elastic hooks parallel to each other, the elastic hooks are arranged on the quick-release seat, and are movably connected with the yarn guide arm through the air duct installation opening.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The yarn filtering device provided by the present invention first quickly positions the quick-release seat together with the filter element to the air duct installation port through a limiting element, and then attracts the quick-release seat to the yarn guide arm through a magnetic suction piece, so as to realize the fixed setting of the quick-release seat and the filter element. At this time, the yarn can be moved into the filter gap to filter the yarn; based on the above-mentioned assembly process, the quick-release seat can be installed using the original air duct installation port of the yarn guide arm, and the quick disassembly and assembly function can be realized by plug-in positioning and magnetic suction fixing, and the additional yarn filtering process can be cut into without disconnecting the line or stopping the machine to realize the precision adjustment function, and the normal operation of the original yarn will not be affected in this process, and the problem of inconvenient yarn filtering precision adjustment is solved. In addition, the structure can also be adapted to the use of most mainstream yarn storage devices at present without adding other complex mechanisms, thereby achieving the effect of reducing costs and increasing efficiency.

[0030] The present invention has other features and advantages, which will be apparent from or will be described in detail in the accompanying drawings and the following detailed description incorporated herein, which together serve to explain the specific principles of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 is a schematic structural diagram of a yarn filter device provided in Embodiment 1 of the present invention;

[0033] Figure 2 is a schematic structural diagram of a yarn guide arm provided in Embodiment 1 of the present invention;

[0034] Figure 3 is a schematic structural diagram of the yarn filter device provided in the first embodiment of the present invention from another perspective;

[0035] Figure 4 It is a schematic structural diagram of a quick-release seat and a filter element provided in the first embodiment of the present invention;

[0036] Figure 5 is a schematic structural diagram of a filter element provided in Embodiment 1 of the present invention;

[0037] Figure 6 is a schematic structural diagram of a yarn filter device provided in Embodiment 2 of the present invention;

[0038] Figure 7It is a schematic diagram of the assembly relationship between the quick-release seat and the filter element provided in the second embodiment of the present invention;

[0039] Figure 8 It is a schematic diagram of the assembly relationship between the quick-release seat and the yarn guide arm provided in the third embodiment of the present invention.

[0040] Reference numerals:

[0041] 1. Yarn guide arm; 101. Wire hole; 102. Air duct installation port;

[0042] 2. Quick release seat; 21. Fit the flat surface;

[0043] 3. Limiting element; 31. Card seat; 32. Card strip; 33. Notch; 34. Elastic card hook;

[0044] 4. Magnetic parts;

[0045] 5. filter element; 51. first filter plate; 511. hook portion; 52. second filter plate;

[0046] 6. Filter gap; 7. Anti-slip gap; 8. Threaded fasteners; 9. Positioning block;

[0047] 10. Bayonet; 11. First bayonet slot; 12. First elastic buckle; 13. Second bayonet slot; 14. Second elastic buckle. DETAILED DESCRIPTION

[0048] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] In the description of the present invention, it is to be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally disposed component. When a component is considered to be "disposed on" another component, it may be directly disposed on the other component or there may be a centrally disposed component.

[0050] In addition, terms such as "long", "short", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or component referred to must have this specific direction or operate with a specific direction structure, and should not be understood as a limitation of the present invention.

[0051] The following is combined with Figure 1-8 The technical solution of the present invention is further illustrated by specific implementation methods.

[0052] Embodiment 1:

[0053] Please refer to Figure 1 The embodiment of the present invention provides a yarn filter device, including a yarn guide arm 1 for introducing yarn. The yarn guide arm 1 is usually vertically fixed on a yarn storage device (not shown in the figure), and the top of the yarn guide arm 1 has a wire hole 101. The yarn passes through the wire hole 101 and enters the yarn storage device. During this process, the yarn passes through the yarn filter groove of the plate body (not shown in the figure), and the yarn filter groove filters the yarn to remove impurities such as cotton knots and flight feathers.

[0054] Further, refer to Figure 2 Some products need to pass through an air duct before filtering the yarn, so the yarn guide arm 1 is provided with an air duct installation opening 102; specifically, the air duct installation opening 102 is a long strip structure, and the air duct installation opening 102 is used for installing the air duct; at this time, the yarn is passed through the air duct, and air is introduced into the air duct to blow away impurities on the yarn.

[0055] Different cloth products have different requirements for yarn filtering accuracy. Conventional yarn filtering accuracy is 0.4mm, 0.5mm, 0.7mm or 1mm, etc. Before the loom produces different cloth products, it is usually necessary to switch the yarn filtering accuracy. At this time, it is necessary to shut down the machine equipment. If it is to be replaced with another uncommon filter yarn plate (plate body) with an uncommon filtering accuracy, it is even necessary to cut the yarn and remove the entire yarn storage device for replacement, and then re-pull the yarn, resulting in discontinuous production actions. In addition, in a loom equipment, usually hundreds of yarn storage devices are set, and accordingly, the filter devices that need to be adjusted also have the same number, and the yarn storage device is usually located at a position higher than 1.8 meters above the equipment, resulting in a large and difficult replacement workload. Therefore, there is a problem of inconvenient adjustment of the filtering accuracy.

[0056] Based on this, refer to Figure 1-Figure 3 In addition to the yarn guide arm 1, the yarn filter device disclosed in this embodiment also includes a quick-release seat 2, a limiting element 3, a magnetic element 4 and a filter element 5. In this embodiment, the quick-release seat 2 is a block structure, and the limiting element 3 is arranged on one side of the quick-release seat 2. The limiting element 3 is plugged and matched with the air duct installation port 102, and the quick-release seat 2 is movably connected to the yarn guide arm 1 through the limiting element 3; at this time, when the limiting element 3 is inserted into the air duct installation port 102, the quick-release seat 2 can be positioned on the yarn guide arm 1. In addition, by removing the limiting element 3 from the air duct installation port 102, the quick-release seat 2 can be disassembled, which is convenient to operate.

[0057] It should be explained that, for the convenience of description, the following description is based on the placement orientation of the quick release seat 2 in the installed state, and at this time the quick release seat 2 has specific orientations such as the bottom, the side and the top.

[0058] At the same time, the magnetic attraction member 4 is arranged on the quick release seat 2. It is understandable that the magnetic attraction member 4 can be made of a neodymium iron boron magnet, and the yarn guide arm 1 is made of metal; in this embodiment, a recessed groove is arranged on the side of the quick release seat 2 away from the limiting element 3, and the magnetic attraction member 4 is arranged in the groove and fixed on the quick release seat 2. When the limiting element 3 is clamped to the yarn guide arm 1, the magnetic attraction member 4 is attracted to the yarn guide arm 1, and then the quick release seat 2 is magnetically fixed to the yarn guide arm 1, so that the quick release seat 2 is fixedly installed.

[0059] In addition, the filter element 5 is arranged on the quick release seat 2. Specifically, the filter element 5 extends toward the side away from the limiting element 3, and the extended part of the filter element 5 has a filtering gap 6 for the yarn to pass through, and the size of the filtering gap 6 is different from the size of the original filter yarn groove on the plate body, and is usually set smaller than the filtering size of the plate filter yarn groove to obtain higher filtering accuracy.

[0060] Based on the above technical solution, when it is necessary to change the filtering accuracy of the yarn, the limiting element 3 can be directly inserted into the air duct mounting port 102 without stopping the machine, and the limiting element 3 can be clamped in the air duct mounting port 102, so that the quick-release seat 2 can be positioned; on this basis, the quick-release seat 2 at this time is just close to the surface of the yarn guide arm 1, and the magnetic suction part 4 presses the quick-release seat 2 to the yarn guide arm 1 through the magnetic suction force, the limiting element 3 is not easy to loosen from the air duct mounting port 102, and the quick-release seat 2 is fixedly installed; then, it is only necessary to move the yarn into the filtering gap 6 of the limiting element 3 to complete the adjustment of the filtering accuracy.

[0061] Correspondingly, when the filtering accuracy needs to be restored, the quick-release seat 2 can be directly removed from the yarn guide arm 1. The above process is quick and convenient, and can meet the needs of quick adjustment of large quantities of yarn in the loom. The adjustment process does not require shutdown or thread cutting, and does not affect the continued production, so the production efficiency is greatly optimized and improved.

[0062] Reference Figure 3 and Figure 4In order to quickly assemble and position the quick release seat 2 on the yarn guide arm 1, the limiting element 3 in this embodiment includes a clamping seat 31 and a clamping strip 32. The clamping seat 31 is connected to the quick release seat 2. Usually, the clamping seat 31 and the quick release seat 2 are connected as one body, so that the clamping seat 31 and the quick release seat 2 have good connection stability; in addition, the clamping seat 31 in this embodiment is in a long strip structure, which is adapted to the contour of the air duct installation port 102, and the length of the clamping seat 31 is less than the opening length of the air duct installation port 102, so that the clamping seat 31 can be displaced and adjusted along the length direction of the air duct installation port 102, so as to realize the clamping installation.

[0063] Furthermore, the clamping strip 32 is connected to the side of the clamping seat 31 away from the quick release seat 2. Usually, the clamping strip 32 is connected to the clamping seat 31 as a whole, so that the clamping element has good structural strength; at the same time, the length of the clamping strip 32 is set to be greater than the opening length of the air duct mounting port 102, and the two ends of the clamping strip 32 extend to the opposite sides of the clamping seat 31 respectively. It can be understood that the opposite sides referred to here are the opposite sides of the clamping seat 31 in the length direction; on this basis, a notch 33 is formed between the clamping strip 32 and the clamping seat 31, and the notch 33 has two notches. At this time, the notch 33 can be movably engaged with the edge of the air duct mounting port 102, so that the limiting element 3 can be clamped and positioned on the yarn guide arm 1.

[0064] Based on the above structure, when the limiting element 3 is clamped to the air duct mounting port 102, one side of the limiting element 3 can be first inserted into the air duct mounting port 102 at an angle, so that one of the notches 33 is embedded in the edge of the air duct mounting port 102. At this time, it is equivalent to avoiding the other side of the limiting element 3, and then the limiting element 3 is straightened so that the other side of the limiting element 3 is inserted into the air duct mounting port 102, and then the limiting element 3 is slid along the length in the air duct mounting port 102 until the two ends of the clamping strip 32 respectively abut against the yarn guide arm 1 to achieve the clamping positioning effect, and then under the reinforcement of the magnetic suction component 4, the quick-release seat 2 is fixed.

[0065] Furthermore, the equipment usually generates vibrations during operation. At this time, if the quick-release seat 2 is loose, the filter element 5 will swing. Since the filter element 5 has a high filtering accuracy, the yarn will usually move at high speed during the process of filtering impurities. At this time, the filter element 5 is prone to wear or even breakage of the yarn when swinging. Based on this, under the action of magnetic attraction, the fitting plane 21 is tightly fitted with the surface of the yarn guide arm 1, thereby increasing the connection stability between the quick-release seat 2 and the yarn guide arm 1, making the quick-release seat 2 and the filter element 5 not easy to loosen and the structure firm.

[0066] It can be understood that based on the above-mentioned structural setting, under the bonding effect of the bonding plane 21, and under the positioning effect of the limiting element 3 and the suction effect of the magnetic suction part 4, not only the quick disassembly and assembly effect of the quick-release seat 2 and the filter element 5 is achieved, but also the stability of the filtering action can be improved, the yarn can be avoided from being damaged or broken, and the smoothness and stability of the filtering action are guaranteed.

[0067] Furthermore, as the production quality requirements of products continue to increase, the requirements for the filtering accuracy of yarns also continue to increase. In the present embodiment, the spacing of the filter gap 6 is less than or equal to 0.2 mm, thereby improving the filtering accuracy and being able to clean more impurities; illustratively, the gap size of the filter gap 6 can be adjusted to 0.1 mm, 0.15 mm or 0.2 mm according to customized requirements, and no specific restrictions are made here.

[0068] It should be explained that based on the above-mentioned setting scheme of the filter gap 6, the traditional filter yarn structure is difficult to achieve a high-precision filtering effect below 0.2mm. The reason is that the plate body used for filtering is currently usually obtained by two processes, one of which is a stamping process, which usually uses a stamping die to perform a punching action on the plate, but a gap smaller than 0.2mm cannot be achieved under the stamping process. On the one hand, the structure of the punch is too thin and easy to break, and the punching part is too narrow, and the defect rate is too high; on the other hand, the edge of the gap formed by the stamping process also has burrs, which will increase the wear on the yarn and easily cause the yarn to break, making it difficult to meet the filtering effect.

[0069] Another process is the whole-piece integrated ceramic forming process, which uses ceramic sintering to obtain a sheet structure with gaps; but the ceramic forming process also has limitations. Specifically, during the ceramic sintering process, the resulting plate structure is too brittle. When the gap is less than 0.2mm, if the sheet structure is heated or cooled unevenly, it will cause the component to deform or even crack. Therefore, the overall yield of the plate obtained by the ceramic forming process is low, and the ceramic sintering process is complicated, which ultimately leads to high production costs and cannot meet the setting requirements.

[0070] Based on this, refer to Figure 4 and Figure 5 In this solution, in order to achieve the filtering function with a precision below 0.2 mm, the filter element 5 includes a first filter 51 and a second filter 52. The first filter 51 and the second filter 52 are both arranged on the quick release seat 2. Specifically, both are located at the bottom of the quick release seat 2 and are arranged adjacent to each other. At this time, the first filter 51 has a first edge, and the second filter 52 has a second edge. The first edge and the second edge are arranged opposite to each other, and the second edge and the first edge are arranged parallel to each other. Based on the above structure, a filtering gap 6 can be formed between the first edge and the second edge.

[0071] In the above scheme, the filter element 5 adopts a split filtering structure. By setting two independent first filter plates 51 and second filter plates 52, on the one hand, the two components can be stamped separately, which greatly reduces the processing difficulty, makes the processing yield higher, and further reduces its manufacturing cost; on the other hand, by controlling the mutual distance between the two, a narrower filter gap 6 can be obtained conveniently and accurately, which provides the possibility of setting the filter gap 6 below 0.2 mm.

[0072] In addition, the first edge and the second edge can be polished by providing two first filter sheets 51 and the second filter sheet 52. Specifically, the first edge and the second edge can be polished by sandpaper or a grinding wheel structure; at this time, smooth polished surfaces are formed at the relative positions of the first edge and the second edge, which can overcome the burr problem in the traditional stamping process. At this time, the polished surface can avoid abrasion of the yarn, so that the filtering effect is optimized.

[0073] Here, compared with the conventional stamping process, the filter element 5 of this scheme adopts a split structure to obtain a filter gap 6 of less than 0.2 mm. At the same time, it can also avoid the problem of burrs in the filter gap 6 under conventional stamping conditions; in addition, compared with the ceramic molding process, the split filter element 5 of this embodiment can also reduce the manufacturing difficulty, thereby improving the molding yield and reducing the manufacturing cost, and well solves the problem of low yield and high cost of the sintering process.

[0074] It can also be understood that this embodiment obtains a filter element 5 that can not only meet the high-precision filtering requirements below 0.2 mm, but also overcome the burr problem of the filter gap 6 and the high manufacturing cost problem; further, the filter element 5 in this solution can also be integrated into the quick-release seat 2, and finally obtains a filter yarn device that can quickly adjust the filtering accuracy without stopping the machine and reduce the manufacturing and use costs.

[0075] Further, continue to refer to Figure 4 and Figure 5 One end of the first filter 51 is connected to the quick release seat 2 , and the other end of the first filter 51 is far away from the quick release seat 2 ; correspondingly, one end of the second filter 52 is also connected to the quick release seat 2 , and the other end of the second filter 52 is originally far away from the quick release seat 2 .

[0076] At this time, a hook portion 511 is provided on the end of the first filter 51 away from the quick-release seat 2. The hook portion 511 passes around the end of the second filter 52 away from the quick-release seat 2 and extends to the side of the second filter 52 away from the first filter 51. An anti-slip gap 7 connected to the filtering gap 6 is formed between the hook portion 511 and the second filter 52, and the anti-slip gap 7 is a hook-shaped structure.

[0077] By adopting the above structure, before the yarn is moved to the filtering gap 6, the yarn is first moved to the anti-slip gap 7. The barbed structure of the anti-slip gap 7 can prevent the yarn from loosening from the filtering gap 6, and the stability of the filtering action is optimized and improved.

[0078] Reference Figure 4 In this embodiment, the first filter 51 and the second filter 52 are fixedly arranged on the quick release seat 2 by threaded fasteners 8. Specifically, a threaded hole is arranged at the bottom of the quick release seat 2, and mounting holes are arranged on the first filter 51 and the second filter 52 respectively. The threaded fasteners 8 are screws. The screws are passed through the mounting holes and threadedly connected to the threaded holes to achieve the fixed arrangement of the first filter 51 and the second filter 52. The assembly process is simple and convenient.

[0079] Furthermore, in order to improve the overall accuracy of the filter gap 6, a positioning block 9 is provided on the quick release seat 2. In this embodiment, the positioning block 9 is located at the bottom of the quick release seat 2 and is arranged in a rectangular outline, and has two positioning side surfaces parallel to each other; at the same time, the positioning block 9 is arranged between the first filter plate 51 and the second filter plate 52, and the first filter plate 51 and the second filter plate 52 are respectively provided with a bayonet 10 that is engaged with the positioning block 9, the opening contour of the bayonet 10 is adapted to the outer contour of the positioning block 9, and the inner edge of the bayonet 10 is in contact with the positioning side surface.

[0080] Based on the above structural setting, the positioning block 9 positions the setting interval between the first filter plate 51 and the second filter plate 52, so that the dimensional accuracy of the filter gap 6 is optimized and improved.

[0081] Furthermore, the mutually cooperating positioning blocks 9 and bayonet sockets 10 can be set to multiple groups, such as two groups, three groups or four groups. By setting multiple groups of positioning blocks 9 and bayonet sockets 10, the positioning accuracy of the first filter 51 and the second filter 52 can be further improved. In this embodiment, the number of positioning blocks 9 and bayonet sockets 10 is set to two groups as an example, and the specific number of positioning blocks 9 and bayonet sockets 10 is not limited here.

[0082] This embodiment has the following effects:

[0083] 1. By adopting the plug-in and snap-in method, the quick-release seat 2 and the filter element 5 can be quickly disassembled and assembled on the yarn guide arm 1, and the filtering accuracy of the yarn can be adjusted efficiently and conveniently.

[0084] 2. The existing air duct mounting opening 102 on the yarn guide arm 1 is used as the mounting hole of the quick-release seat 2, which can effectively improve the versatility of the yarn filter device without adding a complex mounting structure, and can be adapted to most mainstream yarn storage devices, thereby achieving the function of reducing costs and increasing efficiency.

[0085] 3. The filter element 5 adopts a split first filter plate 51 and a second filter plate 52, which can realize the free combination of the filter gap 6 and can also grind the edge entity of the filter gap 6. The filtering accuracy and filtering effect are significantly improved, which can well meet the filter yarn accuracy requirements of different products.

[0086] Embodiment 2:

[0087] On the basis of the first embodiment, the features not explained in the present embodiment are explained in the first embodiment and will not be described again. The difference between the present embodiment and the first embodiment is that the filter element 5 is arranged differently.

[0088] Reference Figure 6 and Figure 7 In order to further improve the installation convenience of the filter element 5, the quick release seat 2 is respectively provided with a first card slot 11. Specifically, the first card slot 11 is recessed from the outside to the inside on the side of the quick release seat 2 away from the yarn guide arm 1, and the first card slot 11 is also open at the bottom surface of the quick release seat 2; at the same time, the first filter plate 51 has a first elastic buckle 12 that is movably buckled with the first card slot 11. The first elastic buckle 12 is a spring sheet structure, which is usually obtained by punching and bending the first filter plate 51.

[0089] At this time, the first filter 51 is inserted from the side opening of the first slot 11 until the first elastic buckle 12 is buckled with the bottom opening of the first slot 11 located on the quick-release seat 2. At this time, the first filter 51 is fixedly installed on the quick-release seat 2; when the first filter 51 needs to be replaced, it is only necessary to press the first elastic buckle 12 to loosen the first slot 11, and the first filter 51 can be pulled out of the quick-release seat 2. The operation is simple and quick.

[0090] Correspondingly, a second card slot 13 is provided on the quick release seat 2, and the setting method of the second card slot 13 is the same as that of the first card slot 11. The second filter 52 has a second elastic buckle 14 movably connected to the second card slot 13. The setting principle of the second filter 52 is the same as that of the first filter 51, which will not be repeated here.

[0091] It should be explained that, in order to ensure that the filter gap 6 has a high structural accuracy when the first card slot 11 and the second card slot 13 are installed, on the one hand, the spacing accuracy of the filter gap 6 can be controlled by controlling the spacing between the first card slot 11 and the second card slot 13; on the other hand, the spacing between the first edge and the second edge can be controlled by controlling the outer dimensions between the first filter plate 51 and the second filter plate 52. The above methods can maintain a high structural accuracy of the filter gap 6.

[0092] In this embodiment, the filter element 5 is quickly disassembled and assembled by adopting an elastic snap-fit ​​method, which facilitates the filter element 5 to be replaced regularly and helps the filter device to maintain a high filtering accuracy.

[0093] Embodiment three:

[0094] On the basis of the first embodiment, the features not explained in the present embodiment adopt the explanation in the first embodiment and will not be described again. The difference between the present embodiment and the first embodiment is that the clamping and positioning method of the limiting element 3 is different.

[0095] Reference Figure 8 The limiting element 3 includes two elastic hooks 34 parallel to each other, the two elastic hooks 34 are parallel to each other, and the elastic hooks 34 are arranged on the quick-release seat 2. Usually, the elastic hook 34 is integrally connected with the quick-release seat 2 to obtain good connection stability; at the same time, the structural length of the elastic hook 34 is adapted to the length of the air duct mounting port 102. At this time, the elastic hook 34 can be inserted and arranged in the air duct mounting port 102 and movably connected with the yarn guide arm 1.

[0096] In this embodiment, the elastic hook 34 can quickly assemble the quick-release seat 2 to the yarn guide arm 1, which can also achieve the convenient disassembly and assembly function. It can be understood that as long as the limiting element 3 can be quickly installed at the air duct mounting port 102, any structure can be tried. No specific setting method is used to limit it, and no matter what specific limiting element 3 is used, it should be included in the interpretation scope of the limiting element 3 of this application.

[0097] So far, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A yarn filter device, comprising a yarn guide arm (1) for introducing yarn, characterized in that: The yarn guide arm (1) is provided with an air duct installation opening (102); Also includes a quick release seat (2); A limiting element (3) is arranged on one side of the quick-release seat (2), plugged into and matched with the air duct mounting opening (102), and enables the quick-release seat (2) to be movably connected to the yarn guide arm (1); A magnetic attraction member (4) is arranged on the quick-release seat (2), and when the limiting element (3) is snapped onto the yarn guide arm (1), the magnetic attraction member (4) magnetically fixes the quick-release seat (2) on the yarn guide arm (1); And a filter element (5) is arranged on the quick-release seat (2) and has a filter gap (6) for the yarn to pass through.

2. The yarn filter device according to claim 1, characterized in that: The spacing between the filtering gaps (6) is less than or equal to 0.2 mm.

3. The yarn filter device according to claim 1 or 2, characterized in that: The filter element (5) comprises: A first filter (51), arranged on the quick-release seat (2), having a first edge; and a second filter plate (52) arranged on the quick-release seat (2), having a second edge arranged parallel to the first edge, the first edge and the second edge forming the filter gap (6), the gap spacing of the filter gap (6) being 0.2 mm, 0.15 mm or 0.1 mm.

4. The yarn filter device according to claim 3, characterized in that: One end of the first filter plate (51) is away from the quick-release seat (2), and a hook portion (511) is provided on the end of the first filter plate (51) away from the quick-release seat (2), and an anti-slip gap (7) connected to the filtering gap (6) is formed between the hook portion (511) and the second filter plate (52).

5. The yarn filter device according to claim 3, characterized in that: Smooth polished surfaces are respectively arranged at the relative positions of the first edge and the second edge.

6. The yarn filter device according to claim 3, characterized in that: The first filter plate (51) and the second filter plate (52) are respectively fixedly arranged on the quick-release seat (2) via threaded fasteners (8).

7. The yarn filter device according to claim 3, characterized in that: The quick-release seat (2) is provided with a positioning block (9), the positioning block (9) is located between the first filter plate (51) and the second filter plate (52), the first filter plate (51) and the second filter plate (52) are respectively provided with a bayonet (10) which is engaged with the positioning block (9), and the positioning block (9) is used to locate the mutual setting distance between the first filter plate (51) and the second filter plate (52).

8. The yarn filter device according to claim 3, characterized in that: The quick-release seat (2) is provided with a first clamping groove (11), and the first filter plate (51) has a first elastic clamping buckle (12) movably buckled with the first clamping groove (11); The quick-release seat (2) is provided with a second clamping groove (13), and the second filter plate (52) is provided with a second elastic clamping buckle (14) movably buckled with the second clamping groove (13).

9. The yarn filter device according to claim 1, characterized in that: The limiting element (3) comprises: A clamping seat (31) connected to the quick-release seat (2), wherein the length of the clamping seat (31) is smaller than the opening length of the air duct installation opening (102); A clamping strip (32) is connected to a side of the clamping seat (31) away from the quick-release seat (2), and two ends of the clamping strip (32) extend to opposite sides of the clamping seat (31), respectively. The length of the clamping strip (32) is greater than the opening length of the air duct mounting opening (102), and a notch (33) is formed between the clamping strip (32) and the clamping seat (31), and the notch (33) is movably engaged with the edge of the air duct mounting opening (102).

10. The yarn filter device according to claim 1, characterized in that: The limiting element (3) comprises two elastic hooks (34) which are parallel to each other. The elastic hooks (34) are arranged on the quick-release seat (2) and are movably connected to the yarn guide arm (1) through the air duct installation opening (102).

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