Quick and precise positioning mechanism and method of two-dimensional braided automatic take-up and pay-off reel

Abstract

The application discloses a kind of two-dimensional weaving automatic take-up reel fast and accurate positioning mechanism and method, the fast and accurate positioning mechanism includes positioning mechanism main body and cone sleeve, one end of positioning mechanism main body is connected with end cover, the other end is connected with positioning sleeve by elastic element, cone sleeve is set in positioning sleeve outer, rotatable paddle is arranged in positioning mechanism main body, spring is arranged between paddle and end cover;Drive paddle to rotate, make spanner part contact end cover, second center hole, eccentric hole, first center hole, step hole, inner hole coaxial line and are installed on take-up reel;Loosen paddle, spring drives paddle to rotate and makes paddle tilt, tilted paddle is fixed on take-up reel by its eccentric hole, and the taper part of elastic element drives cone sleeve abuts in the inner hole of reel.The fast and accurate positioning mechanism and method provided by the application do not need manual bolt, save time and effort, it is convenient and fast to operate, improve the disassembly and assembly speed of reel, production efficiency is high, and positioning accuracy is high, safe and reliable.

Description

Technical Field

[0001] This invention relates to a rapid and precise positioning mechanism and method for an automatic take-up and untake-up reel in two-dimensional knitting, belonging to the field of knitting technology. Background Technology

[0002] A spool is a tool used to store wire. When the wire is wound onto the spool by driving it to rotate, a locking and positioning mechanism is needed to lock and position the spool to prevent it from falling off.

[0003] like Figure 1-3 As shown, in the prior art, the locking and positioning mechanism of the take-up reel in a braiding machine uses two opposing conical sleeves to press and position the reel. The take-up frame 12 is connected to the frame 11 of the braiding machine 10. The take-up shaft 13 is mounted on the take-up frame 12. The take-up shaft 13 is fitted with a male conical sleeve 18, a reel 17, a female conical sleeve 14, and a transmission gear 19. The transmission gear 19 is fixedly connected to the take-up shaft 13. The conical portions of the male conical sleeve 18 and the female conical sleeve 14 are pressed against the holes in the reel 17. The male conical sleeve 18 and the female conical sleeve 14 are fixed to the outer circumference of the take-up shaft 13 by bolts 15. During operation, the braiding machine 10 drives the transmission gear 19 to rotate through its transmission device 16. The transmission gear 19 drives the take-up shaft 13 to rotate. The take-up shaft 13 drives the reel 17 to rotate through the male conical sleeve 18 and the female conical sleeve 14. When stopping the machine and removing the reel 17, the bolt 15 of the female cone sleeve 14 needs to be removed manually with a wrench. Then, the female cone sleeve 14 is pulled out from the take-up shaft 13, and then the reel 17 is pulled out.

[0004] However, the locking and positioning mechanism of the take-up spool in the aforementioned braiding machine has the following problems: When installing the spool, the conical sleeve is positioned inside the spool hole, requiring manual tightening of the bolts on the conical sleeve with a wrench. This is time-consuming, labor-intensive, and inconvenient, reducing the speed of spool assembly and disassembly and resulting in low work efficiency. Furthermore, if the bolts on the conical sleeve are not tightened, the conical sleeve is prone to axial movement, potentially dislodging from the spool's inner hole, preventing the spool from being locked and positioned, thus affecting its normal operation. In addition, the conical sleeve is fixed to the take-up shaft by bolts, with the bolts exposed, posing a safety hazard. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a rapid and precise positioning mechanism and method for an automatic take-up and untake-up reel in two-dimensional braiding. The rapid and precise positioning mechanism eliminates the need for manual bolt tightening, saving time and effort, and offering convenient and quick operation. It improves the speed of reel assembly and disassembly, resulting in high production efficiency. One person can control multiple machines in a very short time, and the positioning accuracy is high. Furthermore, because the lever is tightly pressed into the U-shaped groove of the positioning mechanism body by two compression springs positioned on both sides of the second central hole of the end cap, and the lever is tilted, the eccentric hole of the lever can be tightly locked onto the take-up shaft. This securely fixes the positioning mechanism to the take-up shaft, preventing axial movement and disengagement from the inner hole of the reel. This locks the reel in place, ensuring its normal operation. Moreover, this positioning mechanism does not require bolts to be fixed to the take-up shaft, with no bolts exposed, ensuring safety and reliability.

[0006] On one hand, the present invention provides a rapid and precise positioning mechanism for an automatic take-up and take-up reel in two-dimensional braiding, comprising a positioning mechanism body and a conical sleeve. One end of the positioning mechanism body is connected to an end cap, and the other end is connected to a positioning sleeve via an elastic element. The conical sleeve is fitted over the positioning sleeve. A rotatable lever is provided inside the positioning mechanism body, and a compression spring is provided between the lever and the end cap. The positioning mechanism body has a first central hole and a wrench portion extending out of the positioning mechanism body. The conical sleeve has a stepped hole and a conical portion. The lever has an eccentric hole. The end cap has a second central hole, and the positioning sleeve has an inner hole. Driving the lever to rotate causes the wrench portion to contact the end cap. The second central hole, the eccentric hole, the first central hole, the stepped hole, and the inner hole are coaxial and fitted onto the take-up shaft. Releasing the lever causes the compression spring to drive the lever to rotate and tilt the lever. The tilted lever is fixed to the take-up shaft through its eccentric hole, and the elastic element drives the conical portion of the conical sleeve to abut against the inner hole of the reel.

[0007] In one embodiment of the present invention, one end of the positioning mechanism body is provided with a boss, and the other end is provided with a U-shaped groove, with a through first central hole inside; the boss is a hollow cylindrical structure, and the elastic element is sleeved on the outer periphery of the boss; the two sides of the U-shaped groove are provided with protruding grooves, the U-shaped groove intersects with the outer periphery of the positioning mechanism body with a notch, and the lower part of the U-shaped groove is provided with a stepped groove, the stepped groove being a cuboid structure; the first central hole matches the outer periphery of the take-up shaft; at the end where the U-shaped groove is provided, the positioning mechanism body is provided with a positioning hole and an internal threaded hole.

[0008] In one embodiment of the present invention, the cone sleeve is a hollow cone-shaped structure, with a stepped hole inside one end; and a cone portion and a stepped portion fixedly connected thereto are provided on the outside of the other end, or a whole cone portion is provided on the outside of the other end.

[0009] In one embodiment of the present invention, a bearing is provided on the outer periphery of the positioning sleeve, the bearing is installed in the stepped hole of the tapered sleeve, and the positioning sleeve is installed in the stepped hole of the tapered sleeve through the bearing; or, the positioning sleeve is installed in the stepped hole of the tapered sleeve, and the outer wall of the positioning sleeve is in direct contact with the inner wall of the stepped hole of the tapered sleeve.

[0010] In one embodiment of the present invention, the positioning sleeve has a through hole, and the outer periphery of the positioning sleeve is provided with a step, a positioning boss and a protrusion in sequence, the outer diameter of the positioning boss, the outer diameter of the protrusion and the outer diameter of the step decreasing in sequence; the bearing is sleeved on the outer periphery of the step; the cross section of the protrusion is triangular.

[0011] In one embodiment of the present invention, one end of the elastic member is sleeved on the outer periphery of the boss of the positioning mechanism body, and the other end is sleeved on the outer periphery of the positioning sleeve between the protrusion and the boss.

[0012] In one embodiment of the present invention, the paddle is a rectangular thin sheet structure with paddle protrusions on both sides and an eccentric hole in the middle. The upper part of the paddle is a wrench part, and the lower part is a fulcrum part. The wrench part extends out of the notch of the positioning mechanism body, and the fulcrum part is adapted to the stepped groove of the positioning mechanism body. The outer geometry of the paddle corresponds to the U-shaped groove at one end of the positioning mechanism body, and the protrusions are adapted to the protruding groove. The protruding groove of the positioning mechanism body is used to limit the protrusions of the paddle. The paddle and the U-shaped groove of the positioning mechanism body are in clearance fit, and the fulcrum part of the paddle is in clearance fit with the stepped groove at the lower part of the U-shaped groove of the positioning mechanism body.

[0013] In one embodiment of the present invention, the end cap is a hollow cylinder with a second central hole in the middle. The end face of the end cap near the main body of the positioning mechanism has two spring seat holes, two cylindrical pins, and two through holes. On one side of the second central hole, the cylindrical pins, spring seat holes, and through holes are arranged sequentially from top to bottom; on the other side of the second central hole, the through holes, spring seat holes, and cylindrical pins are arranged sequentially from top to bottom. The spring seat hole is a countersunk hole with a spring inside. The other end of the spring abuts against the protrusion of the lever. The lever is pressed into the U-shaped groove of the positioning mechanism body by the spring positioned by the end cap. The cylindrical pin is adapted to the positioning hole of the positioning mechanism body and is inserted into the positioning hole. The through hole is connected to the internal threaded hole of the positioning mechanism body and is provided with a bolt. The end cap is connected to the positioning mechanism body by the bolt.

[0014] In one embodiment of the present invention, the inner diameters of the second central hole, the eccentric hole, the first central hole, and the inner hole are adapted to the outer diameter of the take-up shaft; the take-up shaft is fitted with a spool and the quick precision positioning mechanism, and the conical part of the conical sleeve of the quick precision positioning mechanism is pressed against the hole of the spool.

[0015] On the other hand, the present invention provides a rapid and precise positioning method for a two-dimensional braided automatic take-up and release spool, which uses the aforementioned rapid and precise positioning mechanism for a two-dimensional braided automatic take-up and release spool. The method includes the following steps:

[0016] Step 1: Gently hold the lever part of the paddle with your fingers so that the fulcrum of the paddle is centered on the stepped groove of the positioning mechanism body and rotates slightly counterclockwise.

[0017] Step 2: When the lever part contacts the end cap, the second center hole of the end cap, the eccentric hole of the lever, the first center hole of the positioning mechanism body, the stepped hole of the cone sleeve, and the inner hole of the positioning sleeve are coaxial. At this time, quickly put the positioning mechanism on the take-up shaft and move it to the appropriate position in the inner hole of the spool.

[0018] Step 3: Release the lever. Under the action of the spring force, the fulcrum of the lever rotates slightly clockwise with the stepped groove of the positioning mechanism body as the fulcrum, and the lever handle moves away from the end cap.

[0019] Step 4: The lever tilts and the tilted lever is locked onto the take-up shaft through its eccentric hole, so that the positioning mechanism is fixed on the take-up shaft. Under the action of the elastic element, the cone sleeve is pressed under tension into the inner hole of the take-up reel to lock the positioning reel. The cone sleeve rotates around the positioning sleeve through the bearing.

[0020] Step 5: The take-up shaft drives the reel to rotate via the male conical sleeve and the quick-positioning mechanism to perform the take-up operation;

[0021] Step 6: Stop the machine and remove the reel. Manually move the lever to pull the quick positioning mechanism out of the take-up shaft, and then pull out the reel.

[0022] The beneficial effects of this invention are:

[0023] The quick and precise positioning mechanism provided by this invention allows for easy removal from the take-up spool. Simply turn the lever slightly with your finger, causing the lever's fulcrum to rotate slightly counterclockwise around the stepped groove of the positioning mechanism body. When the lever's fulcrum contacts the end cap, the second center hole of the end cap, the eccentric hole of the lever, the first center hole of the positioning mechanism body, the stepped hole of the cone sleeve, and the inner hole of the positioning sleeve are coaxial. At this point, the quick and precise positioning mechanism can be quickly moved out along the take-up spool. When locking the positioning spool, simply turn the lever slightly to contact the end cap, quickly fitting the positioning mechanism onto the take-up spool and moving it to the appropriate position within the spool's inner hole. Release the lever; under the elastic force of the compression spring, the lever's fulcrum rotates slightly clockwise around the stepped groove of the positioning mechanism body. The lever tilts, and its eccentric hole engages with the take-up spool, quickly and precisely fixing the positioning mechanism onto the take-up spool and locking the positioning spool. Therefore, the rapid and precise positioning mechanism provided by this invention eliminates the need for manual bolt tightening, saving time and effort, and offering convenient and quick operation. It improves the speed of reel assembly and disassembly, resulting in high production efficiency. One person can control multiple machines in a very short time, and the positioning accuracy is high. Furthermore, because the lever is tightly pressed into the U-shaped groove of the positioning mechanism body by two compression springs positioned on both sides of the second center hole of the end cap, and because the lever is tilted, the eccentric hole of the lever can be tightly locked onto the take-up shaft. This securely fixes the positioning mechanism to the take-up shaft, preventing axial movement and disengagement from the inner hole of the reel. This locks the reel in place, ensuring its normal operation. Moreover, this positioning mechanism does not require bolts to be fixed to the take-up shaft, with no bolts exposed, ensuring safety and reliability.

[0024] Furthermore, the rapid precision positioning mechanism provided by this invention incorporates an elastic element between the positioning mechanism body and the positioning sleeve. The elastic force of the element ensures that the positioning sleeve and the conical sleeve are consistently pushed away from the positioning mechanism body, thereby ensuring that the conical portion of the conical sleeve remains firmly against the inner hole of the wire reel. This provides the conical portion of the conical sleeve with tension when positioning the wire reel, preventing it from being too tight or too loose and improving the winding quality. Additionally, the triangular protrusions and bosses on the outer periphery of the positioning sleeve lock the other end of the elastic element within the triangular protrusions and bosses on the outer periphery of the positioning sleeve. This allows the other end of the elastic element to move synchronously with the positioning sleeve, ensuring that the elastic element remains taut and secure, making operation convenient and saving time and effort. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the locking and positioning mechanism of a take-up reel in the prior art.

[0026] Figure 2 This is a front view of the locking and positioning mechanism of the take-up reel in the prior art within a braiding machine.

[0027] Figure 3 This is a top view of the locking and positioning mechanism of the take-up reel in the prior art within a braiding machine.

[0028] Figure 4 This is a cross-sectional view of the positioning mechanism provided by the present invention.

[0029] Figure 5 This is a perspective view of the main body of the positioning mechanism provided by the present invention.

[0030] Figure 6 This is a cross-sectional view of the cone sleeve provided by the present invention when it is a cone and a step.

[0031] Figure 7 This is a cross-sectional view of the direct connection between the conical sleeve and the positioning sleeve provided by the present invention.

[0032] Figure 8 This is a perspective view of the cone sleeve provided by the present invention when it is a cone.

[0033] Figure 9 This is a cross-sectional view of the positioning sleeve provided by the present invention.

[0034] Figure 10 This is a perspective view of the paddle provided by the present invention.

[0035] Figure 11 This is a perspective view of the end cap provided by the present invention.

[0036] Figure 12 This is a perspective view of the elastic element provided by the present invention.

[0037] Figure 13 This is an exploded view of the positioning mechanism provided by the present invention.

[0038] Figure 14 This is a perspective view of the positioning mechanism provided by the present invention.

[0039] Figure 15 This is a schematic diagram of the positioning mechanism provided by the present invention in operation.

[0040] In the diagram: 10. Braiding machine; 11. Frame; 12. Take-up frame; 13. Take-up shaft; 14. Female conical sleeve; 15. Bolt; 16. Transmission device; 17. Reel; 18. Male conical sleeve; 19. Transmission gear; 21. Positioning mechanism body; 211. Boss; 212. U-shaped groove; 213. First center hole; 214. Positioning hole; 215. Internal threaded hole; 216. Stepped groove; 217. Protruding groove; 218. Notch; 22. Conical sleeve; 220. Platform 221. Stepped hole; 2210. Positioning sleeve; 2211. Inner hole; 2211. Step; 2212. Protrusion; 2213. Positioning boss; 222. Elastic element; 223. Bearing; 224. Conical part; 225. Stepped part; 23. Paddle; 231. Paddle boss; 232. Wrench part; 233. Fulcrum part; 234. Eccentric hole; 24. End cap; 241. Compression spring seat hole; 242. Cylindrical pin; 243. Through hole; 244. Second center hole; 25. Compression spring. Detailed Implementation

[0041] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0044] Please refer to Figures 4-15This application provides a rapid and precise positioning mechanism for a two-dimensional braided automatic take-up and undo reel, including a positioning mechanism body 21 and a conical sleeve 22. One end of the positioning mechanism body 21 is connected to an end cap 24, and the other end is connected to a positioning sleeve 221 via an elastic element 222. The conical sleeve 22 is fitted over the positioning sleeve 221. A rotatable paddle 23 is provided inside the positioning mechanism body 21, and a compression spring 25 is provided between the paddle 23 and the end cap 24.

[0045] In some embodiments, one end of the positioning mechanism body 21 is provided with a boss 211, and the other end is provided with a U-shaped groove 212, with a through first central hole 213 inside; the boss 211 is a hollow cylindrical structure, and the elastic element 222 is sleeved on the outer periphery of the boss 211; the two sides of the U-shaped groove 212 are provided with protruding grooves 217, the U-shaped groove 212 intersects with the outer periphery of the positioning mechanism body 21 with a notch 218, and the lower part of the U-shaped groove 212 is provided with a stepped groove 216, which is a cuboid structure; the first central hole 213 matches the outer periphery of the take-up shaft 13; at the end where the U-shaped groove 212 is provided, the positioning mechanism body 21 is provided with a positioning hole 214 and an internal threaded hole 215.

[0046] In some embodiments, the cone sleeve 22 is a hollow cone-shaped structure, with a stepped hole 220 inside one end and a cone portion 224 and a stepped portion 225 fixedly connected thereto outside the other end, or a whole cone portion 224 is provided outside the other end.

[0047] Optionally, such as Figure 4 As shown, the positioning sleeve 211 is fitted with a bearing 223 on its outer periphery. The bearing 223 is installed in the stepped hole 220 of the tapered sleeve 22. The positioning sleeve 211 is installed in the stepped hole 220 of the tapered sleeve 22 through the bearing 223.

[0048] Optionally, such as Figure 7 As shown, the positioning sleeve 211 is installed inside the stepped hole 220 of the tapered sleeve 22, and the outer wall of the positioning sleeve 211 is in direct contact with the inner wall of the stepped hole 220 of the tapered sleeve 22. In this embodiment, the positioning sleeve 211 is directly connected to the tapered sleeve 22.

[0049] In some embodiments, the positioning sleeve 211 has a through inner hole 2210, and the outer periphery of the positioning sleeve 211 is provided with a step 2211, a positioning boss 2213 and a protrusion 2212 in sequence, with the outer diameter of the positioning boss 2213, the outer diameter of the protrusion 2212 and the outer diameter of the step 2211 decreasing in sequence; the bearing 223 is sleeved on the outer periphery of the step 2211; the cross section of the protrusion 2212 is triangular.

[0050] In some embodiments, one end of the elastic element 222 is sleeved on the outer periphery of the boss 211 of the positioning mechanism body 21, and the other end is sleeved on the outer periphery of the positioning sleeve 211 between the protrusion 2212 and the boss 2213. Preferably, in this embodiment, the elastic element 222 is a compression spring.

[0051] In this embodiment, due to the triangular protrusions 2212 and bosses 2213 on the outer periphery of the positioning sleeve 211, the other end of the elastic member 222 is locked on the outer periphery of the positioning sleeve 211 between the triangular protrusions 2212 and bosses 2213, thereby allowing the other end of the elastic member 222 to move synchronously with the positioning sleeve 211 without detaching.

[0052] In some embodiments, the paddle 23 is a rectangular thin sheet structure with paddle protrusions 231 on both sides and an eccentric hole 234 in the middle. The upper part of the paddle 23 is a wrench part 232, and the lower part is a fulcrum part 233. The wrench part 232 extends out of the notch 218 of the positioning mechanism body 21, and the fulcrum part 233 is adapted to the stepped groove 216 of the positioning mechanism body 21. The external geometry of the paddle 23 corresponds to the U-shaped groove 212 at one end of the positioning mechanism body 21. The protrusions 231 are adapted to the protruding groove 217. The protruding groove 217 of the positioning mechanism body 21 is used to limit the protrusions 231 of the paddle 23. The paddle 23 and the U-shaped groove 212 of the positioning mechanism body 21 are in clearance fit, and the fulcrum part 233 of the paddle 23 is in clearance fit with the stepped groove 216 at the lower part of the U-shaped groove 212 of the positioning mechanism body 21.

[0053] In some embodiments, the end cap 24 is a hollow cylinder with a second central hole 244 in the middle. The end face of the end cap 24 near the positioning mechanism body 21 has two spring seat holes 241, two cylindrical pins 242, and two through holes 243. On one side of the second central hole 244, the cylindrical pins 242, spring seat holes 241, and through holes 243 are arranged sequentially from top to bottom. On the other side of the second central hole 244, the through holes 243, spring seat holes 241, and cylindrical pins 242 are arranged sequentially from top to bottom. The spring seat holes 241... The hole is countersunk and has a compression spring 25 inside. The other end of the compression spring 25 abuts against the protrusion 231 of the lever 23. The lever 23 is pressed into the U-shaped groove 212 of the positioning mechanism body 21 by the compression spring 25 positioned by the end cover 24. The cylindrical pin 242 is adapted to the positioning hole 214 of the positioning mechanism body 21 and is inserted into the positioning hole 214. The through hole 243 is connected to the internal threaded hole 215 of the positioning mechanism body 21 and is provided with a bolt. The end cover 24 is connected to the positioning mechanism body 21 by the bolt.

[0054] Furthermore, the inner diameters of the second central hole 244, the eccentric hole 234, the first central hole 213, and the inner hole 2210 are adapted to the outer diameter of the take-up shaft 13, and the take-up shaft 13 is movably inserted into the second central hole 244, the eccentric hole 234, the first central hole 213, and the inner hole 2210.

[0055] Furthermore, the take-up frame 12 is connected to the frame 11 of the braiding machine 10. The take-up shaft 13 is mounted on the take-up frame 12. The take-up shaft 13 is fitted with a male conical sleeve 18, a spool 17, the quick-positioning mechanism, and a transmission gear 19. The transmission gear 19 is fixedly connected to the take-up shaft 13. The conical part of the male conical sleeve 18 and the conical part 224 of the conical sleeve 22 of the quick-positioning mechanism are pressed tightly against the hole in the spool 17. The braiding machine 10 drives the transmission gear 19 to rotate through its transmission device 16. The transmission gear 19 drives the take-up shaft 13 to rotate. The take-up shaft 13 drives the spool 17 to rotate through the male conical sleeve 18 and the quick-positioning mechanism. When the machine is stopped and the spool 17 is removed, the quick-positioning mechanism can be manually pulled out from the take-up shaft 13 by manually turning the lever 23, and then the spool 17 can be removed.

[0056] Furthermore, the present invention also provides a rapid and precise positioning method for a two-dimensional braided automatic take-up and pay-off reel, which uses the aforementioned rapid and precise positioning mechanism for the two-dimensional braided automatic take-up and pay-off reel. The method includes the following steps:

[0057] Step 1: Manually use your fingers to gently press the lever part 232 of the lever 23, so that the fulcrum part 233 of the lever 23 rotates slightly counterclockwise with the stepped groove 216 of the positioning mechanism body 21 as the fulcrum.

[0058] Step 2: When the lever part 232 of the lever 23 contacts the end cap 24, the second center hole 244 of the end cap 24, the eccentric hole 234 of the lever 23, the first center hole 213 of the positioning mechanism body 21, the stepped hole 220 of the tapered sleeve 22, and the inner hole 2210 of the positioning sleeve 221 are coaxial. At this time, the positioning mechanism is quickly mounted on the take-up shaft 13 and moved to a suitable position in the inner hole of the spool 17.

[0059] Step 3: Release the lever 23. Under the action of the elastic force of the compression spring 25, the fulcrum part 233 of the lever 23 rotates slightly clockwise with the stepped groove 216 of the positioning mechanism body 21 as the fulcrum. The lever part 232 of the lever 23 moves away from the end cover 24.

[0060] Step 4: The lever 23 tilts, and the eccentric hole 234 of the lever 23 is engaged on the take-up shaft 13, so that the positioning mechanism is fixed on the take-up shaft 13. Under the action of the elastic element 222, the cone sleeve 22 is pressed into the inner hole of the take-up reel 17 with tension. The cone sleeve 22 rotates around the positioning sleeve 221 through the bearing 223, that is, it locks and positions the reel 17, so that the reel 17 can be positioned and perform the take-up operation.

[0061] Step 5: The take-up shaft 13 drives the reel 17 to rotate through the male conical sleeve 18 and the quick precision positioning mechanism to perform the take-up operation;

[0062] Step 6: Stop the machine and remove the reel 17. Manually move the lever 23 to pull the quick positioning mechanism out of the take-up shaft 13, and then pull out the reel 17.

[0063] The quick and precise positioning mechanism provided by this invention allows for easy removal from the take-up spool 13. Simply use your finger to slightly turn the lever portion 232 of the lever 23, causing the fulcrum portion 233 of the lever 23 to rotate slightly counterclockwise around the stepped groove 216 of the positioning mechanism body 21. When the lever portion 232 of the lever 23 contacts the end cap 24, the second central hole 244 of the end cap 24, the eccentric hole 234 of the lever 23, the first central hole 213 of the positioning mechanism body 21, the stepped hole 220 of the tapered sleeve 22, and the inner hole 2210 of the positioning sleeve 221 are coaxial. At this point, the quick and precise positioning mechanism of this invention can be quickly moved out along the take-up spool 13. When it is necessary to lock the positioning reel 17, simply slightly turn the lever 232 of the lever 23 to make it contact the end cap 24, quickly fitting the positioning mechanism onto the take-up shaft 13 and moving it to the appropriate position inside the reel 17. Release the lever 23; under the elastic force of the compression spring 25, the fulcrum 233 of the lever 23 rotates slightly clockwise around the stepped groove 216 of the positioning mechanism body 21. At this time, the lever 23 tilts, and the eccentric hole 234 of the lever 23 engages with the take-up shaft 13, thus quickly and accurately fixing the positioning mechanism onto the take-up shaft 13 and locking the positioning reel 17. Therefore, the quick and precise positioning mechanism provided by this invention eliminates the need for manual bolt tightening, saving time and effort, and is convenient and quick to operate. It improves the disassembly and assembly speed of the reel 17, resulting in high production efficiency. It allows one person to control multiple devices in a very short time, and provides high positioning accuracy. Furthermore, because the lever 23 is tightly pressed into the U-shaped groove 212 of the positioning mechanism body 21 by the two compression springs 25 positioned on both sides of the second center hole 244 of the end cap 24, and the lever 23 is tilted, the eccentric hole 234 of the lever 23 can be tightly locked onto the take-up shaft 13, thus firmly fixing the positioning mechanism onto the take-up shaft 13. This prevents the positioning mechanism from axially moving and dislodging from the inner hole of the spool 17, ensuring that the spool 17 is locked and positioned, guaranteeing the normal operation of the spool 17. Moreover, this positioning mechanism does not require bolts to be fixed to the take-up shaft 13, with no bolts exposed, making it safe and reliable.

[0064] Furthermore, the rapid precision positioning mechanism provided by this invention includes an elastic element 222 between the positioning mechanism body 21 and the positioning sleeve 221. The elastic force of the elastic element 222 itself ensures that the positioning sleeve 221 and the conical sleeve 22 are always pushed away from the positioning mechanism body 21. This allows the conical portion 224 of the conical sleeve 22 to always be tightly abutted against the inner hole of the coil 17, providing tension when the conical portion 224 positions the coil 17. This prevents the conical portion 224 from being too tight or too loose when positioning the coil 17, thus improving the winding quality. Additionally, the triangular protrusions 2212 and bosses 2213 on the outer periphery of the positioning sleeve 211 lock the other end of the elastic element 222 within the triangular protrusions 2212 and bosses 2213 on the outer periphery of the positioning sleeve 211. This allows the other end of the elastic element 222 to move synchronously with the positioning sleeve 211, ensuring that the elastic element 222 is tensioned freely and does not fall off, making operation convenient, time-saving, and labor-saving.

[0065] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A rapid and precise positioning mechanism for a two-dimensional braided automatic take-up and undo reel, characterized in that, The device includes a positioning mechanism body and a conical sleeve. One end of the positioning mechanism body is connected to an end cap, and the other end is connected to a positioning sleeve via an elastic element. The conical sleeve is fitted over the positioning sleeve. A rotatable lever is provided inside the positioning mechanism body, and a compression spring is provided between the lever and the end cap. The positioning mechanism body has a first central hole and a lever portion extending out of the positioning mechanism body. The conical sleeve has a stepped hole and a conical portion. The lever has an eccentric hole. The end cap has a second central hole. The positioning sleeve has an inner hole. One end of the positioning mechanism body is provided with a boss, and the other end is provided with a U-shaped groove, with a through first central hole inside; the boss is a hollow cylindrical structure, and the elastic element is sleeved on the outer periphery of the boss; the two sides of the U-shaped groove are provided with protruding grooves, and the U-shaped groove intersects with the outer periphery of the positioning mechanism body with a notch; the lower part of the U-shaped groove is provided with a stepped groove, and the stepped groove is a cuboid structure; the first central hole matches the outer periphery of the take-up shaft; at the end with the U-shaped groove, the positioning mechanism body is provided with a positioning hole and an internal threaded hole; The paddle is a rectangular thin sheet structure with paddle protrusions on both sides and an eccentric hole in the middle. The upper part of the paddle is a wrench part, and the lower part is a fulcrum part. The wrench part extends out of the notch of the positioning mechanism body, and the fulcrum part is adapted to the stepped groove of the positioning mechanism body. The outer geometry of the paddle corresponds to the U-shaped groove at one end of the positioning mechanism body, and the protrusions are adapted to the protruding groove. The protruding groove of the positioning mechanism body is used to limit the protrusions of the paddle. The paddle and the U-shaped groove of the positioning mechanism body are in clearance fit, and the fulcrum part of the paddle is in clearance fit with the stepped groove at the lower part of the U-shaped groove of the positioning mechanism body. The lever is driven to rotate, causing the wrench part to contact the end cap. The second center hole, eccentric hole, first center hole, stepped hole, and inner hole are coaxial and fitted onto the take-up shaft. The lever is released, and the compression spring drives the lever to rotate. The fulcrum part rotates around the stepped groove of the positioning mechanism body, causing the lever to tilt. The tilted lever is fixed to the take-up shaft through its eccentric hole. The elastic element drives the cone part of the cone sleeve to abut against the inner hole of the spool.

2. The rapid and precise positioning mechanism for the two-dimensional braiding automatic take-up and undo reel according to claim 1, characterized in that, The cone sleeve is a hollow cone-shaped structure with a stepped hole inside one end and a cone part and a stepped part fixedly connected to it on the outside of the other end, or a whole cone part on the outside of the other end.

3. The rapid and precise positioning mechanism for the two-dimensional braiding automatic take-up and undo reel according to claim 2, characterized in that, The positioning sleeve is fitted with a bearing on its outer periphery. The bearing is installed in the stepped hole of the tapered sleeve. The positioning sleeve is installed in the stepped hole of the tapered sleeve through the bearing. Alternatively, the positioning sleeve is installed in the stepped hole of the tapered sleeve, and the outer wall of the positioning sleeve is in direct contact with the inner wall of the stepped hole of the tapered sleeve.

4. The rapid and precise positioning mechanism for the two-dimensional braiding automatic take-up and undo reel according to claim 3, characterized in that, The positioning sleeve has a through hole, and the outer periphery of the positioning sleeve is provided with a step, a positioning boss and a protrusion in sequence, with the outer diameter of the positioning boss, the outer diameter of the protrusion and the outer diameter of the step decreasing in sequence; the bearing is sleeved on the outer periphery of the step; the cross section of the protrusion is triangular.

5. The rapid and precise positioning mechanism for the two-dimensional braiding automatic take-up and undo reel according to claim 4, characterized in that, One end of the elastic element is sleeved on the outer periphery of the boss of the positioning mechanism body, and the other end is sleeved on the outer periphery of the positioning sleeve between the protrusion and the boss.

6. The rapid and precise positioning mechanism for the two-dimensional braiding automatic take-up and untake-up spool according to claim 5, characterized in that, The end cap is a hollow cylinder with a second central hole in the middle. The end face of the end cap near the main body of the positioning mechanism has two spring seat holes, two cylindrical pins, and two through holes. On one side of the second central hole, the cylindrical pins, spring seat holes, and through holes are arranged sequentially from top to bottom; on the other side of the second central hole, the through holes, spring seat holes, and cylindrical pins are arranged sequentially from top to bottom. The spring seat hole is a countersunk hole with a spring inside. The other end of the spring abuts against the protrusion of the lever. The lever is pressed into the U-shaped groove of the main body of the positioning mechanism by the spring positioned by the end cap. The cylindrical pins are adapted to the positioning holes of the main body of the positioning mechanism and are inserted into the positioning holes. The through holes are aligned with the internal threaded holes of the main body of the positioning mechanism and are fitted with bolts. The end cap is connected to the main body of the positioning mechanism via bolts.

7. The rapid and precise positioning mechanism for the two-dimensional braiding automatic take-up and untake-up spool according to claim 6, characterized in that, The inner diameters of the second central hole, the eccentric hole, the first central hole, and the inner hole are adapted to the outer diameter of the take-up shaft; the take-up shaft is fitted with a spool and the quick precision positioning mechanism, and the conical part of the conical sleeve of the quick precision positioning mechanism is pressed against the hole of the spool.

8. A rapid and precise positioning method for a two-dimensional braided automatic take-up and undo reel, characterized in that, The rapid and precise positioning mechanism for a two-dimensional braided automatic take-up and untake-up reel according to any one of claims 1-7 is used, and the method includes the following steps: Step 1: Gently hold the lever part of the paddle with your fingers so that the fulcrum of the paddle is centered on the stepped groove of the positioning mechanism body and rotates slightly counterclockwise. Step 2: When the lever part contacts the end cap, the second center hole of the end cap, the eccentric hole of the lever, the first center hole of the positioning mechanism body, the stepped hole of the cone sleeve, and the inner hole of the positioning sleeve are coaxial. At this time, quickly put the positioning mechanism on the take-up shaft and move it to the appropriate position in the inner hole of the spool. Step 3: Release the lever. Under the action of the spring force, the fulcrum of the lever rotates slightly clockwise with the stepped groove of the positioning mechanism body as the fulcrum, and the lever handle moves away from the end cap. Step 4: The lever tilts and the tilted lever is locked onto the take-up shaft through its eccentric hole, so that the positioning mechanism is fixed on the take-up shaft. Under the action of the elastic element, the cone sleeve is pressed under tension into the inner hole of the take-up reel to lock the positioning reel. The cone sleeve rotates around the positioning sleeve through the bearing. Step 5: The take-up shaft drives the reel to rotate via the male conical sleeve and the quick-positioning mechanism to perform the take-up operation; Step 6: Stop the machine and remove the reel. Manually move the lever to pull the quick positioning mechanism out of the take-up shaft, and then pull out the reel.

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