Positioning broken thread device for cover yarn production

Abstract

The application discloses a positioning broken thread device for covered yarn production, which comprises a thread pipe, a thread cutting assembly, a thread clamping assembly and a linear driving assembly are arranged in the thread pipe. The thread cutting assembly comprises a cutter and a cutter driving part, the cutter is connected with the cutter driving part through a connecting rod, the cutter driving part is used for driving the cutter to move linearly, the thread clamping assembly comprises a base, a first clamping block group and a second clamping block group; the linear driving assembly is connected with the base, and the linear driving assembly is used for driving the thread clamping assembly to move along the length direction of the thread pipe. The yarn is clamped and fixed through the thread clamping assembly, and the structure of the stop block, the trigger block and the push block is arranged, so that the clamping action of the clamping block is automatically triggered during cutting, the trigger response is rapid, the cutting effect is ensured, the broken thread is transmitted to the outside of the thread cylinder through the linear driving assembly, and the thread does not need to be threaded after the thread is broken.

Description

Technical Field

[0001] This invention belongs to the field of textile technology, specifically relating to a positioning and breaking device for the production of covered yarn. Background Technology

[0002] Covered yarn, also known as core-spun yarn or composite yarn, is a new type of yarn composed of two or more fibers. The earliest core-spun yarn was developed using cotton fiber as the sheath and polyester staple fiber yarn as the core, resulting in short-fiber and short-fiber core-spun yarns.

[0003] In the Chinese invention patent with publication number CN218291221U, entitled "A Positioning and Breaking Device for Covered Yarn Production," the covered yarn is cut by the thread cutter through the thread tube, the first air tube, and the thread cutter. The cut covered yarn is then blown out of the thread tube by the first air tube, thus reducing the subsequent threading work. However, in practical applications, the following two problems exist:

[0004] 1. Because there is no fixed tension on the covering yarn during the cutting process, if the tension of the covering yarn is too low during the transmission process, the cutting may be incomplete or the yarn may not be cut.

[0005] 2. It is difficult to control the direction and magnitude of air pressure, which causes the cut yarn to be blown out through the air tube. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a positioning and cutting device for covered yarn production. By setting up a clamping component to clamp and fix the yarn, and by setting up structures such as a stop block, trigger block, and push block, the clamping action of the clamping block is automatically triggered during cutting, with a rapid trigger response, thereby ensuring the cutting effect. The linear drive component is used to transmit the broken yarn to the outside of the yarn spool, eliminating the need for threading after the yarn is broken.

[0007] The embodiments of the present invention are achieved through the following technical solutions:

[0008] A positioning and breaking device for producing covered yarn includes a tube, wherein the tube is equipped with:

[0009] A tangent assembly includes a cutter and a cutter drive unit. The cutter is connected to the cutter drive unit via a connecting rod, and the cutter drive unit drives the cutter to move linearly.

[0010] The yarn clamping assembly includes a base, a first clamping block group and a second clamping block group. The first clamping block group and the second clamping block group are both disposed on the base and are symmetrically arranged on the front and rear sides of the cutter. The first clamping block group and the second clamping block group include a pair of clamping blocks. The pair of clamping blocks are slidably disposed on the base. The pair of clamping blocks can move closer to each other to clamp and fix the yarn or move away from each other to release the yarn.

[0011] A linear drive assembly connected to a base is used to drive the wire clamping assembly to move along the length of the wire tube.

[0012] The inner wall of the conduit is provided with a first guide groove group corresponding to the first clamping block group. The first guide groove group includes a pair of first guide grooves, which are symmetrically arranged with the conduit axis as the center. The inner wall of the conduit is provided with a second guide groove group corresponding to the second clamping block group. The second guide groove group includes a pair of second guide grooves, which are symmetrically arranged with the conduit axis as the center.

[0013] Each clamp of the first clamping block group is connected to a first slider, which is slidably disposed in a first guide groove adjacent to it; each clamp of the second clamping block group is connected to a second slider, which is slidably disposed in a second guide groove adjacent to it.

[0014] Both the first and second guide grooves are equipped with a closed section guide groove and an open section guide groove. The closed section guide groove and the open section guide groove are both arranged parallel to the axis of the tube. The front and rear ends of the closed section guide groove and the open section guide groove are connected by connecting guide grooves to form a ring circuit. When the first slider or the second slider is located in the closed section guide groove, the two clamping blocks in the same group approach each other and clamp the yarn. When the first slider or the second slider is located in the open section guide groove, the two clamping blocks in the same group move away from each other and release the yarn.

[0015] The connecting guide groove located on the rear side of the conduit is equipped with a one-way opening and closing plate. The one-way opening and closing plate is located at the junction of the connecting guide groove and the opening section guide groove. The one-way opening and closing plate is hinged to the inner wall of the connecting guide groove, and a torsion spring is provided at the hinge. The torsion spring keeps the one-way opening and closing plate tending to close the connecting guide groove. The opening section guide groove is equipped with an extension section guide groove corresponding to the one-way opening and closing plate. The extension section guide groove is set corresponding to the connecting guide groove.

[0016] The opening diameter of the first guide groove is different from the opening diameter of the second guide groove.

[0017] Each clamping block is equipped with a spring to maintain the tendency of the clamping blocks in the same group to close together. A movable chamber is arranged below each clamping block. The top of the movable chamber is connected to a vertical sliding hole. A stop block is slidably arranged in the sliding hole. The stop block is used to extend to resist the closing of the clamping blocks. A push block is slidably arranged horizontally in the movable chamber. The push block is equipped with a first driving slope. The bottom of the stop block is equipped with a second driving slope. The second driving slope is in sliding contact with the first driving slope. A compression spring is arranged horizontally between the push block and the inner wall of the movable chamber. The compression spring is used to maintain the tendency of the push block to push the stop block out of the sliding hole to resist the clamping block. A trigger rod is arranged horizontally on the push block.

[0018] The cutting assembly is located below the base, and the base has a through groove in the middle through which the cutter can pass. The trigger rod extends out of the movable chamber and is located in the through groove. The connecting rod is equipped with a pair of crossbars, and a trigger block is located at the end of the pair of crossbars away from the connecting rod. When the cutter drive unit drives the cutter to pass through the through groove to cut the yarn, the trigger block contacts the trigger rod and drives the push block to slide, so that the stop block falls back into the movable chamber.

[0019] The connecting rod is slidably configured with a sleeve, and the crossbars are all fixedly configured on the outer wall of the sleeve. The connecting rod is a hollow rod, and a pair of limiting members are configured inside the hollow rod. The pair of limiting members are symmetrically configured on both sides of the hollow rod. The limiting member includes a connecting plate and a pair of protrusions. The protrusions are configured on the upper and lower sides of the connecting plate. The connecting rod is configured with through holes that match the protrusions. The protrusions are slidably disposed in the through holes one by one. The pair of protrusions are respectively located on the upper and lower sides of the sleeve. The two pairs of connecting plates are connected by an elastic member, which is used to maintain the tendency of the protrusions to extend out of the through holes.

[0020] The through slot is equipped with a pair of limiting rods. When the trigger block contacts the trigger rod and drives the push block to slide and cause the stop block to fall, the limiting rod contacts the protrusion and pushes the protrusion to slide inward. A limiting ring is also provided below the crossbar, which is fixedly disposed on the outer wall of the spool.

[0021] The top of the stop block is hinged to a stop portion, and a torsion spring is provided at the hinge point. The torsion spring is used to maintain the stop portion in a vertical state. A brake block is provided on the side of the stop portion away from the clamping block. When the stop portion is in a vertical state, the brake block abuts against the stop block to restrict the stop portion from rotating inward.

[0022] The trigger rod is rotatably connected to a trigger part at the end away from the push block. A stop block is disposed on the top of the trigger part. When the trigger part is in a horizontal state, the stop block abuts against the trigger block to restrict the trigger part from rotating upward.

[0023] The linear drive assembly includes a drive motor and a pair of belt drive assemblies symmetrically arranged on both sides of the bottom of the bobbin. Each belt drive assembly includes a drive pulley, a driven pulley, and a belt. The drive pulley is located on one side of the bobbin, and the driven pulley is located on the other side. The belt surrounds the drive pulley and the driven pulley. A drive shaft connects the pair of drive pulleys, and the drive motor is connected to the drive shaft. The base is fixedly arranged on the pair of belts.

[0024] The base is equipped with a fixing component at the front end, which is fixedly connected to the belt. The rear parts of the first guide groove group and the second guide groove group both extend out of the conduit and are located outside the conduit.

[0025] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0026] (1) The present invention clamps and fixes the yarn by setting a clamping component, and by setting a stop block, trigger block, push block and other structures, it realizes that the clamping block is automatically triggered to clamp the yarn during cutting, and the triggering response is rapid, thereby ensuring the cutting effect.

[0027] (2) The present invention realizes the transmission of broken wires to the outside of the spool through a linear drive component, so that no wire needs to be threaded after the wire breaks.

[0028] (3) By setting the first guide groove and the second guide groove, the present invention can control the clamping component to move back and forth along the length of the tube by controlling the linear drive component, thereby achieving control of the clamping or loosening of the yarn by the clamping block. This ensures that the yarn is clamped when the transmission tube is broken, and the clamping block opens during reset to avoid affecting the yarn. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a cross-sectional side view of the present invention;

[0031] Figure 2 This is a cross-sectional top view of the present invention;

[0032] Figure 3 This is a cross-sectional top view of the present invention;

[0033] Figure 4 for Figure 3 Schematic diagram of the structure at point A;

[0034] Figure 5 This is a cross-sectional view of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure when the clamping blocks close and the stop block falls back into the sliding hole in this invention;

[0036] Figure 7 This is a schematic diagram of the structure of the clamping blocks when they close to clamp the yarn in this invention;

[0037] Figure 8 This is a schematic diagram of the process of the clamping blocks closing and clamping the yarn, and then opening again in the present invention.

[0038] Figure 9 for Figure 8 Schematic diagram of the structure at point B;

[0039] Figure 10 This is a sectional view of the connection between the connecting rod and the sleeve;

[0040] icon:

[0041] 1-Conduit, 100-Opening

[0042] 20-Mounting bracket, 21-Cutter, 22-Cutter drive unit, 23-Connecting rod, 231-Sleeve, 2310-Conical guide, 24-Crossbar, 25-Trigger block, 261-Connecting plate, 262-Protrusion, 27-Elastic element

[0043] 31-Base, 310-Through groove, 311-Limiting rod, 312-Limiting ring, 313-Fixing component, 32-First clamping block assembly, 320-First slider, 33-Second clamping block assembly, 330-Second slider, 300-Clamping block, 301-Groove, 302-Protrusion, 303-Spring, 304-Slide rod, 341-Moving chamber, 342-Sliding hole, 35-Stop block, 350-Second driving inclined surface, 351-Abutting part, 362-Brake block, 36-Push block, 360-First driving inclined surface, 361-Trigger rod, 3610-Triggering part, 3611-Abutting block, 371-Slide track, 372-Moving block, 38-Compression spring.

[0044] 41-Drive motor, 42-Belt drive assembly, 421-Driving pulley, 422-Driven pulley, 423-Belt, 424-Drive shaft

[0045] 510 - First guide groove, 520 - Second guide groove, 501 - Closed section guide groove, 502 - Opening section guide groove, 503 - Connecting guide groove, 504 - One-way opening and closing plate, 505 - Extension section guide groove.

[0046] 6- Yarn. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0050] In the description of this invention, it should be noted that if terms such as "inner" or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention 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 invention.

[0051] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "configure," and "connect" 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 invention based on the specific circumstances.

[0052] Example

[0053] Please refer to Figure 1-10 This embodiment provides a positioning and breaking device for covered yarn production, including a tube 1, which is equipped with a cutting component, a clamping component and a linear drive component.

[0054] The cutting assembly is disposed at the bottom of the tube 1. The cutting assembly includes a cutter 21 and a cutter 21 drive unit. The cutter 21 is connected to the cutter 21 drive unit through a connecting rod 23. The cutter 21 drive unit is used to drive the cutter 21 to move linearly. The bottom of the tube 1 is provided with an opening 100 for the cutter 21 to pass through. The cutter 21 drive unit can be a linear drive device such as a cylinder, hydraulic cylinder or linear module. In this embodiment, the cutter 21 drive unit is a cylinder. The cylinder drives the cutter 21 to move upward through the opening 100 to cut the yarn 6 in the tube.

[0055] The yarn clamping assembly includes a base 31, a first clamping block group 300 32, and a second clamping block group 300 33. Both the first clamping block group 300 32 and the second clamping block group 300 33 are disposed on the base 31 and are symmetrically arranged on the front and rear sides of the cutter 21. Each of the first clamping block group 300 32 and the second clamping block group 300 33 includes a pair of clamping blocks 300. These pairs of clamping blocks 300 are slidably disposed on the base 31. The pairs of clamping blocks 300 can clamp and fix the yarn 6 by moving closer together or move further apart to release the yarn 6. Please refer to [reference needed]. Figure 5 In order to increase the stability when clamping the yarn 6, each set of clamping blocks 300 includes a clamping block 300 with a groove 301 and a clamping block 300 with a protrusion 302. The protrusion 302 and the groove 301 are used to clamp the yarn 6.

[0056] The linear drive assembly is connected to the base 31 and is used to drive the wire clamping assembly to move along the length of the wire tube 1. Specifically, the linear drive assembly includes a drive motor 41 and a pair of belt 423 transmission assemblies 42. The pair of belt 423 transmission assemblies 42 are symmetrically arranged on both sides of the bottom of the wire tube. Each belt 423 transmission assembly 42 includes a drive wheel 421, a driven wheel 422, and a belt 423. The drive wheel 421 is located on one side of the wire tube, and the driven wheel 422 is located on the other side of the wire tube. The belt 423 is arranged around the drive wheel 421 and the driven wheel 422. A drive shaft 424 is connected between the pair of drive wheels 421. The drive motor 41 is connected to the drive shaft 424. The base 31 is fixedly arranged on the pair of belts 423. The rotation of the drive motor 41 drives the drive shaft 424 to rotate, thereby driving the drive wheel 421 to rotate, realizing the transmission function of the belt 423.

[0057] With the above settings, when cutting the yarn, the yarn 6 located on the front and rear sides of the cutter 21 is clamped and fixed by the first clamping block group 300 32 and the second clamping block group 300 33. Then, the cutter 21 is driven to move upward by the cylinder to cut the yarn 6. Then, the yarn clamping assembly is driven to move by the linear drive assembly to remove the cut yarn 6 from the yarn spool for subsequent processing of the yarn 6. After the yarn is cut, there is no need to manually reassemble it.

[0058] Please refer to Figure 3 , 4 5. The inner wall of the conduit 1 is provided with a first guide groove 510 group corresponding to the first clamping block 300 group 32. The first guide groove 510 group includes a pair of first guide grooves 510, which are symmetrically arranged with the axis of the conduit 1 as the center. The inner wall of the conduit 1 is provided with a second guide groove 520 group corresponding to the second clamping block 300 group 33. The second guide groove 520 group includes a pair of second guide grooves 520, which are symmetrically arranged with the axis of the conduit 1 as the center.

[0059] Each clamping block 300 in the first clamping block group 300 32 is connected to a first slider 320, which is slidably disposed in the first guide groove 510 adjacent to it. Each clamping block 300 in the second clamping block group 300 33 is connected to a second slider 330, which is slidably disposed in the second guide groove 520 adjacent to it. Each clamping block 300 is provided with a spring 303, which is used to maintain the tendency of the clamping blocks 300 in the same group to close together. In order to increase the stability of the clamping blocks 300 when sliding, the base 31 is horizontally provided with a slide rod 304. Each clamping block 300 is provided with a mounting hole that matches the slide rod 304. The clamping block 300 slides through the mounting hole and slides through the slide rod 304.

[0060] The first guide groove 510 and the second guide groove 520 are both equipped with a closed section guide groove 501 and an open section guide groove 502. Both the closed section guide groove 501 and the open section guide groove 502 are parallel to the axis of the conduit 1. The front and rear ends of the closed section guide groove 501 and the open section guide groove 502 are connected by a connecting guide groove 503 to form a circular loop. When the first slider 320 or the second slider 330 is located in the closed section guide groove 501, the two clamping blocks 300 in the same group approach each other and clamp the yarn 6. When the first slider 320 or the second slider 330 is located in the open section guide groove 502, the two clamping blocks 300 in the same group move away from each other and release the yarn 6. Thus, by controlling the linear drive assembly to drive the clamping assembly to move back and forth along the length of the conduit 1, the clamping or releasing action of the clamping blocks 300 on the yarn 6 can be controlled. After the clamping blocks 300 clamp the yarn 6 and the cutter 21 cuts it, the linear drive assembly... The control base 31 moves backward, causing the first slider 320 and the second slider 330 to slide along the closed section guide groove 501, so that the clamping block 300 is kept in a clamped state. When the base 31 moves to the last end, the first slider 320 and the second slider 330 move along the connecting guide groove 503 to the opening section guide groove 502, thereby realizing the automatic opening of the clamping block 300. Then, the linear drive component controls the base 31 to move forward and reset, causing the first slider 320 and the second slider 330 to slide along the opening section guide groove 502, and the clamping block 300 remains in an open state so that the subsequent processing of the yarn 6 can proceed smoothly. When the yarn 6 needs to be cut again, the linear drive component can be used to control the base 31 to move forward to the front end, and then the spring 303 can be used to drive the clamping block 300 to close and clamp. At this time, the first slider 320 and the second slider 330 move along the connecting guide groove 503 to the closed end guide groove.

[0061] To facilitate the movement of the first slider 320 and the second slider 330 from the closed section guide groove 501 to the open section guide groove 502, the connecting guide groove 503 located at the rear is arc-shaped. A one-way opening and closing plate 504 is provided on the connecting guide groove 503 located at the rear of the conduit 1. This one-way opening and closing plate 504 is hinged to the inner wall of the connecting guide groove 503, and a torsion spring is provided at the hinge. This torsion spring maintains the one-way opening and closing plate 504 in a tendency to close the connecting guide groove 503. An extension section guide groove 505 is provided corresponding to the one-way opening and closing plate 504 in the open section guide groove 502. 05 is configured to connect to the guide groove 503. When the first slider 320 or the second slider 330 moves from the closed section guide groove 501 to the open section guide groove 502, the first slider 320 or the second slider 330 pushes the one-way opening and closing plate 504. The one-way opening and closing plate 504 rotates and opens. The first slider 320 or the second slider 330 continues to move into the extension section guide groove 505 under the force. At this time, the one-way opening and closing plate 504 resets and rotates to close the connecting guide groove 503 under the action of the torsion spring. Thus, when the base 31 is driven to return to reset, the first slider 320 or the second slider 330 can only move along the open section guide groove 502, thereby ensuring that the clamping block 300 is in the open state when the clamping assembly returns to reset.

[0062] In this embodiment, the diameter of the opening 100 of the first guide groove 510 is different from the diameter of the opening 100 of the second guide groove 520. The diameter of the second guide groove 520 is smaller than the diameter of the first guide groove 510. Please refer to [reference needed]. Figure 3 In this embodiment, the second guide groove 520 is partially disposed within the first guide groove 510, making full use of the space and ensuring the synchronicity of the movements of the first clamping block group 300 32 and the second clamping block group 300 33.

[0063] Further, in this embodiment, please refer to Figures 5 to 9Each of the movable chambers 341 located below the clamping block 300 has a vertical sliding hole 342 connected to its top. A stop block 35 is slidably disposed within the sliding hole 342, and the stop block 35 is used to extend to prevent the clamping block 300 from closing. A push block 36 is horizontally slidably disposed within the movable chamber 341. To improve the stability of the push block 36 during sliding, slide rails 371 are respectively disposed on both sides of the inner wall of the movable chamber 341. A movable block 372 is slidably disposed within the slide rails 371, and the movable block 372 is connected to the push block 36. The push block 36 is equipped with a first A driving ramp 360 is provided, and a second driving ramp 350 is provided at the bottom of the stop block 35. The second driving ramp 350 slides in contact with the first driving ramp 360, so that when the push block 36 moves horizontally, the stop block 35 is driven to slide vertically in the sliding hole 342 under the action of the first driving ramp 360 and the second driving ramp 350. A compression spring 38 is horizontally arranged between the push block 36 and the inner wall of the movable chamber 341. The compression spring 38 is used to maintain the tendency of the push block 36 to push the stop block 35 out of the sliding hole 342 to resist the clamping block 300. A trigger rod 361 is horizontally arranged on the push block 36.

[0064] Please refer to Figure 1 , Figure 2 , Figure 5 and Figure 10 The cutting assembly is mounted on the base 31 via the mounting bracket 20. The base 31 has a through groove 310 in the middle, through which the cutter 21 can pass. The trigger rod 361 extends out of the movable chamber 341 and is located in the through groove 310. The connecting rod 23 is equipped with a pair of crossbars 24. A trigger block 25 is located at the end of the pair of crossbars 24 away from the connecting rod 23. When the drive unit of the cutter 21 drives the cutter 21 to pass through the through groove 310 to cut the yarn 6, the trigger block 25 contacts the trigger rod 361 and drives the push block 36 to slide, so that the stop block 35 falls back into the sliding hole 342. The clamping block 300 quickly closes and clamps the yarn 6 under the action of the spring 303, thereby realizing the function of automatically triggering the clamping block 300 to close and clamp the yarn 6 during the cutting action. It adopts a purely mechanical structure, and the triggering process is rapid and stable.

[0065] In this embodiment, the top of the stop block 35 is hinged to a stop portion 351, and a torsion spring is disposed at the hinge point to maintain the vertical state of the stop portion 351. A brake block 362 is disposed on the side of the stop portion 351 away from the clamping block 300. When the stop portion 351 is in the vertical state, the brake block 362 abuts against the stop block 35 to restrict the stop portion 351 from rotating inward. When the stop block 35 falls and the clamping block 300 passes over the stop block 35 and closes inward, the stop portion 351 is located outside the clamping block 300. When the clamping block 300 moves with the first slider 320 or the second slider... When block 330 moves to the opening section guide groove 502 and opens, clamping block 300 drives the abutment part 351 to rotate outward, so that the abutment part 351 rotates in the sliding hole 342, thereby reducing the influence of stop block 35 on the opening action of clamping block 300. When clamping block 300 passes the stop block 35 and opens, the abutment part 351 rotates to a vertical state under the action of torsion spring. Under the action of brake block 362, the abutment part 351 cannot continue to rotate and remains in a vertical state, thereby achieving the abutment of clamping block 300 and keeping clamping block 300 in an open state to wait for the next tangential trigger.

[0066] Please refer to Figures 5 to 9 The connecting rod 23 is slidably configured with a sleeve 231. The top of the sleeve 231 is configured with a tapered guide 2310. The crossbars 24 are all fixedly configured on the outer wall of the sleeve 231. The connecting rod 23 is a hollow rod. A pair of limiting members are configured inside the hollow rod. The pair of limiting members are symmetrically configured on both sides of the hollow rod. The limiting member includes a connecting plate 261 and a pair of protrusions 262. The protrusions 262 are configured on the upper and lower sides of the connecting plate 261. The connecting rod 23 is configured with through holes that match the protrusions 262. The protrusions 262 are slidably configured in the through holes. The pair of protrusions 262 are respectively located on the upper and lower sides of the sleeve 231. The two pairs of connecting plates 261 are connected by an elastic member 27. The elastic member 27 is used to maintain the tendency of the protrusions 262 to extend out of the through holes. Preferably, the cross section of the protrusions 262 is trapezoidal.

[0067] Please refer to Figure 10The through groove 310 is fixedly equipped with a pair of limiting rods 311. When the trigger block 25 contacts the trigger rod 361 and drives the push block 36 to slide, causing the stop block 35 to fall, the limiting rod 311 contacts the protrusion 262, and the limiting rod 311 pushes the protrusion 262 to slide inward, so that the sleeve 231 slides down past the protrusion 262, thereby driving the crossbar 24 and the trigger block 25 to slide down. A limiting ring 312 is also provided below the crossbar 24. The limiting ring 312 is fixedly configured on the outer wall of the spool. In this embodiment... The limiting ring 312 is fixedly mounted on the mounting frame 20 by the support member. When the sleeve 231 falls, it will stop falling until the limiting ring 312 stops falling. After the cutter 21 cuts the yarn 6 and falls back, it will drive the connecting rod 23 to move downward. The sleeve 231 will contact the protrusion 262 and push the protrusion 262 to slide inward, thereby realizing the reset of the position of the sleeve 231. So that when the next cutting action is performed, the connecting rod 23 will move upward. Under the action of the protrusion 262, the sleeve 231 and the crossbar 24 will move upward to trigger the clamping block 300 to close and clamp the yarn 6.

[0068] Please refer to Figures 5 to 9 The trigger rod 361 is rotatably connected to a trigger part 3610 at the end away from the push block 36. A stop block 3611 is positioned at the top of the trigger part 3610. When the trigger part 3610 is in a horizontal state, the stop block 3611 abuts against the trigger block 25, restricting the upward rotation of the trigger part 3610. Utilizing the unidirectional rotation property of the trigger part 3610, when the trigger block 25 moves upward, the stop block 3611 stops against the trigger rod 361, preventing further rotation. Thus, when the trigger block 25 continues to move upward, it can drive the push block 36 to move, causing the stop block 35 to fall. The trigger clamping block 300 closes and clamps the yarn 6. Then, under the action of the limiting rod 311, the sleeve 231 disengages from the protrusion 262 and falls, causing the trigger block 25 to fall, which in turn causes the stop block 3611 to rotate and avoid the trigger block 25, allowing it to reset.

[0069] Please refer to Figures 1 to 3 The base 31 is equipped with a fixing member 313 at its front end, which is fixedly connected to the belt 423. The rear parts of the first guide groove group 510 and the second guide groove group 520 both extend out of the tube 1 and are located outside the tube 1. The top length of the tube 1 is greater than the length of the tube body, so that when the base 31 is driven to convey the clamped yarn 6, the base 31 is exposed and the yarn 6 is completely sent out of the tube 1, which provides convenience for the subsequent processing of the yarn 6.

[0070] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A positioning and breaking device for producing covered yarn, comprising a tube, characterized in that, The conduit is equipped with: A tangent assembly includes a cutter and a cutter drive unit. The cutter is connected to the cutter drive unit via a connecting rod, and the cutter drive unit drives the cutter to move linearly. The yarn clamping assembly includes a base, a first clamping block group and a second clamping block group. The first clamping block group and the second clamping block group are both disposed on the base and are symmetrically arranged on the front and rear sides of the cutter. The first clamping block group and the second clamping block group include a pair of clamping blocks. The pair of clamping blocks are slidably disposed on the base. The pair of clamping blocks can move closer to each other to clamp and fix the yarn or move away from each other to release the yarn. A linear drive assembly connected to a base, the linear drive assembly being used to drive the wire clamping assembly to move along the length of the wire tube; The inner wall of the conduit is provided with a first guide groove group corresponding to the first clamping block group. The first guide groove group includes a pair of first guide grooves, which are symmetrically arranged with the conduit axis as the center. The inner wall of the conduit is provided with a second guide groove group corresponding to the second clamping block group. The second guide groove group includes a pair of second guide grooves, which are symmetrically arranged with the conduit axis as the center. Each clamp of the first clamping block group is connected to a first slider, which is slidably disposed in a first guide groove adjacent to it; each clamp of the second clamping block group is connected to a second slider, which is slidably disposed in a second guide groove adjacent to it. Both the first guide groove and the second guide groove are equipped with a closed section guide groove and an open section guide groove. The closed section guide groove and the open section guide groove are both arranged parallel to the axis of the tube. The front and rear ends of the closed section guide groove and the open section guide groove are connected by connecting guide grooves to form a ring circuit. When the first slider or the second slider is located in the closed section guide groove, the two clamping blocks in the same group approach each other and clamp the yarn. When the first slider or the second slider is located in the open section guide groove, the two clamping blocks in the same group move away from each other and release the yarn. The connecting guide groove located on the rear side of the conduit is equipped with a one-way opening and closing plate. The one-way opening and closing plate is located at the junction of the connecting guide groove and the opening section guide groove. The one-way opening and closing plate is hinged to the inner wall of the connecting guide groove, and a torsion spring is provided at the hinge. The torsion spring keeps the one-way opening and closing plate tending to close the connecting guide groove. The opening section guide groove is equipped with an extension section guide groove corresponding to the one-way opening and closing plate. The extension section guide groove is set corresponding to the connecting guide groove.

2. The positioning and breaking device for coated yarn production according to claim 1, characterized in that, The opening diameter of the first guide groove is different from the opening diameter of the second guide groove.

3. The positioning and breaking device for coated yarn production according to claim 2, characterized in that, Each clamping block is equipped with a spring to maintain the tendency of the clamping blocks in the same group to close together. A movable chamber is arranged below each clamping block. The top of the movable chamber is connected to a vertical sliding hole. A stop block is slidably arranged in the sliding hole. The stop block is used to extend to resist the closing of the clamping blocks. A push block is slidably arranged horizontally in the movable chamber. The push block is equipped with a first driving slope. The bottom of the stop block is equipped with a second driving slope. The second driving slope is in sliding contact with the first driving slope. A compression spring is arranged horizontally between the push block and the inner wall of the movable chamber. The compression spring is used to maintain the tendency of the push block to push the stop block out of the sliding hole to resist the clamping block. A trigger rod is arranged horizontally on the push block. The cutting assembly is located below the base, and the base has a through groove in the middle through which the cutter can pass. The trigger rod extends out of the movable chamber and is located in the through groove. The connecting rod is equipped with a pair of crossbars, and a trigger block is located at the end of the pair of crossbars away from the connecting rod. When the cutter drive unit drives the cutter to pass through the through groove to cut the yarn, the trigger block contacts the trigger rod and drives the push block to slide, so that the stop block falls back into the movable chamber.

4. The positioning and breaking device for coated yarn production according to claim 3, characterized in that, The connecting rod is slidably configured with a sleeve, and the crossbars are all fixedly configured on the outer wall of the sleeve. The connecting rod is a hollow rod, and a pair of limiting members are configured inside the hollow rod. The pair of limiting members are symmetrically configured on both sides of the hollow rod. The limiting member includes a connecting plate and a pair of protrusions. The protrusions are configured on the upper and lower sides of the connecting plate. The connecting rod is configured with through holes that match the protrusions. The protrusions are slidably disposed in the through holes one by one. The pair of protrusions are respectively located on the upper and lower sides of the sleeve. The two pairs of connecting plates are connected by an elastic member, which is used to maintain the tendency of the protrusions to extend out of the through holes. The through slot is equipped with a pair of limiting rods. When the trigger block contacts the trigger rod and drives the push block to slide and cause the stop block to fall, the limiting rod contacts the protrusion and pushes the protrusion to slide inward. A limiting ring is also provided below the crossbar, which is fixedly disposed on the outer wall of the spool.

5. A positioning and breaking device for coated yarn production according to claim 4, characterized in that, The top of the stop block is hinged to a stop portion, and a torsion spring is provided at the hinge point. The torsion spring is used to maintain the stop portion in a vertical state. A brake block is provided on the side of the stop portion away from the clamping block. When the stop portion is in a vertical state, the brake block abuts against the stop block to restrict the stop portion from rotating inward.

6. A positioning and breaking device for coated yarn production according to claim 5, characterized in that, The trigger rod is rotatably connected to a trigger part at the end away from the push block. A stop block is disposed on the top of the trigger part. When the trigger part is in a horizontal state, the stop block abuts against the trigger block to restrict the trigger part from rotating upward.

7. A positioning and breaking device for producing covered yarn according to claim 6, characterized in that, The linear drive assembly includes a drive motor and a pair of belt drive assemblies symmetrically arranged on both sides of the bottom of the bobbin. Each belt drive assembly includes a drive pulley, a driven pulley, and a belt. The drive pulley is located on one side of the bobbin, and the driven pulley is located on the other side of the bobbin. The belt is arranged around the drive pulley and the driven pulley. A drive shaft is connected between the two drive pulleys. The drive motor is connected to the drive shaft. The base is fixedly arranged on the pair of belts.

8. A positioning and breaking device for coated yarn production according to claim 7, characterized in that, The base is equipped with a fixing component at the front end, which is fixedly connected to the belt. The rear parts of the first guide groove group and the second guide groove group both extend out of the conduit and are located outside the conduit.

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