Full-automatic reciprocating yarn separating mechanism of drawing-in machine

Abstract

The present application relates to a kind of full-automatic reciprocating yarn separating mechanism of drawing-in machine, including frame, moving frame, translation mechanism, lifting mechanism and yarn separating mechanism, the top front side of frame is provided with fixed steel comb, the upper surface front side and rear side of frame are provided with guide roller;Moving frame is set in frame by translation mechanism, and the top front side of moving frame is provided with moving steel comb, translation mechanism is used to drive moving frame to translate along left-right direction;Lifting mechanism is set on moving frame, and the two mobile ends of lifting mechanism are respectively set on the two sides of moving frame, a yarn clamping mechanism is set on each mobile end, and two yarn clamping mechanisms are oppositely arranged, when one of mobile end moves along vertical direction, the other mobile end will move in opposite direction.The present application is reasonable in structure, can realize automatic yarn separating operation, to facilitate the completion of subsequent drawing-in operation, and does not need manual assistance, can improve yarn separating efficiency.

Description

Technical Field

[0001] This invention relates to the field of textile technology, specifically to a fully automatic reciprocating yarn separating mechanism for a warping machine. Background Technology

[0002] Before the yarn is woven on the loom, it needs to undergo a preparatory process called warping. The yarn separating mechanism is an important component of the warping machine, and its structure, motion accuracy, and stability directly affect the efficiency, speed, and quality of warping. The warping machine needs to pass the yarn sequentially through the reed gaps, the heddle eyelets, and the warp holes of the stop warp. Therefore, the yarn separating mechanism needs to separate individual yarns in a timely manner so that the hook can catch the separated individual yarns, thereby completing the entire warping process.

[0003] Currently, most existing warping processes require manual assistance in separating the yarn, which is slow and inefficient. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a fully automatic reciprocating yarn separating mechanism for a warping machine, which addresses the above-mentioned shortcomings. The present invention has a reasonable structure and can realize automated yarn separating operation, so as to complete the subsequent warping operation without the need for manual assistance, thereby improving the yarn separating efficiency.

[0005] To solve the above technical problems, the present invention adopts the following technical solution:

[0006] A fully automatic reciprocating yarn separating mechanism for a warping machine includes a frame, a moving frame, a translation mechanism, a lifting mechanism, and a yarn separating mechanism. A fixed steel comb is provided on the top front side of the frame, and yarn guide rollers are provided on both the front and rear sides of the upper surface of the frame.

[0007] The movable frame is installed inside the machine frame via a translation mechanism, and a movable steel comb is provided on the top front side of the movable frame. The translation mechanism is used to drive the movable frame to translate in the left and right directions.

[0008] The lifting mechanism is mounted on the movable frame, and the two moving ends of the lifting mechanism are respectively mounted on both sides of the movable frame. Each moving end is equipped with a yarn clamping mechanism, and the two yarn clamping mechanisms are arranged opposite to each other. When one moving end moves in the vertical direction, the other moving end will move in the opposite direction.

[0009] A yarn tube is provided on the rear side of the middle part of the frame. The yarn bundle on the yarn tube passes through the guide roller located at the rear side of the frame, the guide roller located at the front side of the frame, the fixed steel comb and the movable steel comb in sequence, and is then clamped by two yarn clamping mechanisms and is in a vertical section.

[0010] The yarn separating mechanism is located in the middle of the front side of the frame. The yarn separating mechanism is used to increase the spacing between the single yarns in the vertical section of the yarn bundle, and to sequentially pick out the single yarns for reed threading, and cut the single yarns after threading.

[0011] Furthermore, a tension mechanism is provided between the yarn bobbin and the frame, which is used to maintain the tension of the yarn bundle within a preset range.

[0012] Furthermore, the tension mechanism includes a tension support, a gravity swing arm, and a gravity swing rod. A yarn guide rod is provided on both the front and rear sides of the tension support. The rear end of the gravity swing arm is hinged to the middle of the tension support. The gravity swing rod is provided at the front end of the gravity swing arm. The gravity swing rod can rotate in the vertical plane through the gravity swing arm.

[0013] Furthermore, the translation mechanism includes two sets of first guide rails, lead screws, and first drive assemblies. The two sets of first guide rails, lead screws, and first drive assemblies are respectively disposed at the bottom and top of the frame. The first guide rails and lead screws are disposed on the frame in the left-right direction. The output end of the first drive assemblies is connected to one end of the lead screw. The movable frame is fixed on the slider of the first guide rail, and the movable frame is connected to the nut seat on the lead screw. The first drive assemblies are used to drive the lead screw to rotate so as to drive the movable frame to translate along the first guide rail.

[0014] Furthermore, the lifting mechanism includes a second drive assembly, a second guide rail, and three sets of synchronous belt drive mechanisms. A second guide rail is vertically arranged on both the left and right sides of the movable frame. Two yarn clamping mechanisms are respectively mounted on sliders on the two second guide rails. A set of synchronous belt drive mechanisms is vertically arranged on both the left and right sides of the movable frame. The two yarn clamping mechanisms are respectively connected to the synchronous belt drive mechanism on the corresponding side. A third set of synchronous belt drive mechanisms is located at the top or bottom of the movable frame and is connected to the other two sets of synchronous belt drive mechanisms. The output end of the second drive assembly is connected to one of the sets of synchronous belt drive mechanisms. The drive mechanism is used to drive the three sets of synchronous belt drive mechanisms to rotate simultaneously, thereby causing the two yarn clamping mechanisms to move in opposite directions along the guide rails.

[0015] Furthermore, the synchronous belt drive mechanism includes an adjustable bearing mounting base, a bearing mounting base, a synchronous pulley, and a synchronous belt. Both the adjustable bearing mounting base and the bearing mounting base are mounted on a movable frame. Synchronous pulleys are provided on the outer side of the rotating shaft inside the adjustable bearing mounting base and the bearing mounting base. The two synchronous pulleys are connected by a synchronous belt.

[0016] Furthermore, the yarn clamping mechanism includes a gripper cylinder, a warp clamping plate, and a first mounting plate. The first mounting plate is mounted on a slider on the second guide rail. The gripper cylinder is mounted on the first mounting plate. The output end of the gripper cylinder is provided with two warp clamping plates. The two warp clamping plates are arranged in the left-right direction and are located in the same horizontal plane. The gripper cylinder is used to drive the two warp clamping plates to move closer or further apart. The first mounting plate is provided with a synchronous belt connector for connecting with the synchronous belt of the synchronous belt drive mechanism.

[0017] Furthermore, the yarn separating mechanism includes a translation component, a third drive component, a spiral yarn separating rod, a first micro cylinder, a second micro cylinder, and pneumatic scissors. The translation component and the second micro cylinder are both located in the middle of the front side of the frame. The third drive component and the first micro cylinder are both located on the moving end of the translation component. The translation component is used to drive the third drive component and the first micro cylinder to move back and forth. The spiral yarn separating rod is horizontally arranged in the left-right direction and connected to the output end of the third drive component. The third drive component is used to drive the spiral yarn separating rod to rotate around its own axis.

[0018] The first micro cylinder is provided with a first micro hook at its rear end, and the second micro cylinder is provided with a second micro hook at one end near the spiral yarn separating rod. The first micro cylinder is used to push the first micro hook to move back and forth directly below the spiral yarn separating rod, and the second micro cylinder is used to push the second micro hook to move left and right directly below the first micro hook.

[0019] A pneumatic shear is installed at both the bottom and top of the frame.

[0020] Furthermore, the translation component includes a second mounting plate, a push cylinder, and a fixed plate. The second mounting plate is horizontally disposed in the middle of the front side of the frame. The push cylinder is disposed on the first mounting plate. The fixed plate is disposed on the top of the push cylinder and connected to the push rod of the push cylinder. The third drive component and the first micro cylinder are both disposed on the fixed plate. The push cylinder is used to push the fixed plate to translate back and forth.

[0021] Furthermore, the spiral yarn separating rod is conical in shape and has a spiral groove on its outer surface. The spiral groove is continuous and extends from one end of the spiral yarn separating rod to the other end. The outer diameter of the spiral yarn separating rod gradually increases from the end away from the third drive component to the end closer to the third drive component. The pitch of the spiral groove gradually increases from the end away from the third drive component to the end closer to the third drive component.

[0022] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0023] This invention can automatically perform reciprocating yarn feeding and changing, achieving fully automated yarn separation without manual assistance, reducing labor costs and operational difficulty, and improving the production efficiency of the warping machine. Two translation mechanisms drive the moving frame to move left and right reciprocally to feed yarn. A translation component pushes the spiral yarn separating rod closer to the vertical section of the yarn bundle for separation. When the spiral yarn separating rod rotates, the yarn bundle increases the spacing between individual yarns under the action of the spiral grooves. Two miniature hooks pick out a single yarn and cut off the upper end of the yarn with pneumatic scissors at the top to complete the subsequent reed threading operation. After threading, the lower end of the yarn is cut off with pneumatic scissors at the bottom to complete the yarn separation and reed threading operation. When changing yarn, the lifting mechanism drives the two yarn clamping mechanisms to move closer to each other so that the lower yarn clamping mechanism can clamp the cut end of the yarn. After clamping, the lifting mechanism drives the two yarn clamping mechanisms to move away from each other to tighten the yarn bundle again for the next round of yarn separation.

[0024] To prevent the yarn from loosening during the yarn separation process, two yarn clamping mechanisms are used to clamp the top and bottom of the vertical section of the yarn bundle. In order to improve the clamping force of the warp clamping plate, the two clamping plates are made of a combination of steel and electromagnet. When clamping, the two clamping plates can stick together under the action of magnetic force, so that the end of the clamping plate away from the clamping claw cylinder can also firmly clamp the yarn.

[0025] To maintain constant tension in the yarn bundle, a tensioning mechanism is added between the guide roller and the yarn bobbin. The tensioning mechanism presses down on the yarn via a gravity lever to keep the yarn bundle taut.

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another angle;

[0029] Figure 3 This is a schematic diagram of the structure of the present invention with the moving frame, yarn tube, and tension mechanism omitted.

[0030] Figure 4 This is a schematic diagram of the structure of the yarn bobbin and tension mechanism of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the mobile frame of the present invention;

[0032] Figure 6 This is a partial structural schematic diagram of the mobile frame of the present invention;

[0033] Figure 7This is a structural schematic diagram of the mobile frame of the present invention from another angle;

[0034] Figure 8 This is a schematic diagram of the translation mechanism of the present invention;

[0035] Figure 9 This is a schematic diagram of the yarn-splitting mechanism of the present invention.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Frame; 11. Fixed steel comb; 12. Yarn guide roller; 2. Moving frame; 21. Moving steel comb; 3. Translation mechanism; 31. First guide rail; 32. Lead screw; 33. First drive assembly; 4. Lifting mechanism; 41. Second drive assembly; 42. Second guide rail; 43. Synchronous belt drive mechanism; 431. Adjustable bearing mounting seat; 432. Bearing mounting seat; 433. Synchronous pulley; 434. Synchronous belt; 5. Yarn separating mechanism; 51. Translation assembly; 511. Second mounting plate; 512. 51. Push cylinder; 52. Fixing plate; 53. Third drive assembly; 54. Spiral yarn separating rod; 55. First micro cylinder; 56. Second micro cylinder; 57. Pneumatic scissors; 58. First micro hook; 69. Second micro hook; 60. Yarn clamping mechanism; 61. Gripper cylinder; 62. Warp clamping plate; 63. First mounting plate; 64. Synchronous belt connector; 7. Yarn bobbin; 80. Tension mechanism; 81. Tension bracket; 82. Gravity swing arm; 83. Gravity swing rod; 84. Yarn guide rod. Detailed Implementation

[0038] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0039] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0040] like Figure 1 and Figure 2 As shown, a fully automatic reciprocating yarn separating mechanism for a warping machine includes a frame 1, a moving frame 2, a translation mechanism 3, a lifting mechanism 4, and a yarn separating mechanism 5. A fixed steel comb 11 is provided on the top front side of the frame 1, and yarn guide rollers 12 are provided on both the front and rear sides of the upper surface of the frame 1.

[0041] The movable frame 2 is installed inside the frame 1 via a translation mechanism 3, and a movable steel comb 21 is provided on the top front side of the movable frame 2. The translation mechanism 3 is used to drive the movable frame 2 to translate in the left and right directions.

[0042] The lifting mechanism 4 is mounted on the movable frame 2, and the two moving ends of the lifting mechanism 4 are respectively mounted on both sides of the movable frame 2. Each moving end is equipped with a yarn clamping mechanism 6, and the two yarn clamping mechanisms 6 are arranged opposite to each other. When one of the moving ends moves in the vertical direction, the other moving end will move in the opposite direction.

[0043] A yarn tube 7 is provided on the rear side of the middle part of the frame 1. The yarn bundle on the yarn tube 7 passes through the yarn guide roller 12 located on the rear side of the frame 1, the yarn guide roller 12 located on the front side of the frame 1, the fixed steel comb 11 and the movable steel comb 21 in sequence, and is then clamped by two yarn clamping mechanisms 6 and is in a vertical section.

[0044] The yarn separating mechanism 5 is located in the middle of the front side of the frame 1. The yarn separating mechanism 5 is used to increase the spacing between the single yarns in the vertical section of the yarn bundle, and to sequentially pick out the single yarns for reed threading, and cut the single yarns after threading.

[0045] like Figure 4 As shown, in one embodiment, a tension mechanism 8 is provided between the yarn bobbin 7 and the frame 1. The tension mechanism 8 is used to keep the tension of the yarn bundle within a preset range.

[0046] The tension mechanism 8 includes a tension support 81, a gravity swing arm 82, and a gravity swing rod 83. A yarn guide rod 84 is provided on both the front and rear sides of the tension support 81. The rear end of the gravity swing arm 82 is hinged to the middle of the tension support 81. The gravity swing rod 83 is provided at the front end of the gravity swing arm 82. The gravity swing rod 83 can rotate in the vertical plane through the gravity swing arm 82.

[0047] Specifically, after the yarn bundle is drawn out from the yarn bobbin 7, it passes through the two yarn guide rods 84 in sequence from top to bottom and from back to front, and then is led to the yarn guide roller 12 at the top of the frame 1. The gravity swing rod 83 falls above the yarn bundle under the action of gravity and provides a downward thrust to the yarn bundle to maintain the tension of the yarn bundle.

[0048] like Figure 5 and Figure 8As shown, in one embodiment, the translation mechanism 3 includes two sets of first guide rails 31, lead screws 32, and first drive components 33. The two sets of first guide rails 31, lead screws 32, and first drive components 33 are respectively disposed at the bottom and top of the frame 1. The first guide rails 31 and lead screws 32 are disposed on the frame 1 in the left-right direction. The output end of the first drive component 33 is connected to one end of the lead screw 32. The movable frame 2 is fixed on the slider of the first guide rail 31, and the movable frame 2 is connected to the nut seat on the lead screw 32. The first drive component 33 is used to drive the lead screw 32 to rotate so as to drive the movable frame 2 to translate along the first guide rail 31.

[0049] like Figure 5 , Figure 6 and Figure 7 As shown, in one embodiment, the lifting mechanism 4 includes a second drive assembly 41, a second guide rail 42, and three sets of synchronous belt drive mechanisms 43. A second guide rail 42 is vertically arranged on both the left and right sides of the movable frame 2. Two yarn clamping mechanisms 6 are respectively mounted on sliders on the two second guide rails 42. A set of synchronous belt drive mechanisms 43 is vertically arranged on both the left and right sides of the movable frame 2. The two yarn clamping mechanisms 6 are respectively connected to the corresponding synchronous belt drive mechanism 43 on one side. A third set of synchronous belt drive mechanisms 43 is located at the top or bottom of the movable frame 2 and is connected to the other two sets of synchronous belt drive mechanisms 43. The output end of the second drive assembly 41 is connected to one of the sets of synchronous belt drive mechanisms 43. The drive mechanism is used to drive the three sets of synchronous belt drive mechanisms 43 to rotate simultaneously, thereby causing the two yarn clamping mechanisms 6 to move in opposite directions along the guide rails.

[0050] The synchronous belt drive mechanism 43 includes an adjustable bearing mounting base 431, a bearing mounting base 432, a synchronous pulley 433, and a synchronous belt 434. The adjustable bearing mounting base 431 and the bearing mounting base 432 are both mounted on the movable frame 2. The outer side of the rotating shaft inside the adjustable bearing mounting base 431 and the bearing mounting base 432 is provided with a synchronous pulley 433, and the two synchronous pulleys 433 are connected by the synchronous belt 434.

[0051] In this embodiment, the adjustable bearing mounting base 431 can adjust the height of the rotating shaft within a certain range. The three sets of synchronous belt drive mechanisms 43 share the adjustable bearing mounting base 431 and the bearing mounting base 432. Figure 5As shown, the system includes two adjustable bearing mounting seats 431 and two bearing mounting seats 432. The two adjustable bearing mounting seats 431 are located on the left and right sides of the top of the movable frame 2, respectively, and the two bearing mounting seats 432 are located on the left and right sides of the bottom of the movable frame 2, respectively. Each adjustable bearing mounting seat 431 and bearing mounting seat 432 is provided with a horizontal rotating shaft. The two ends of two synchronous belts 434 are respectively set on the rotating shafts on the same side of the adjustable bearing mounting seats 431 and bearing mounting seats 432 (with synchronous pulleys 433 on the outside of the rotating shafts). Another synchronous belt 434 is horizontally set at the bottom of the movable frame 2, and its two ends are respectively set on the rotating shafts on the two bearing mounting seats 432 at the bottom (with synchronous pulleys 433 on the outside of the rotating shafts). The second drive assembly 41 is set on the outside of one of the bearing mounting seats 432, and the output end of the second drive assembly 41 is connected to the rotating shaft of the bearing mounting seat 432.

[0052] like Figure 6 As shown, in one embodiment, the yarn clamping mechanism 6 includes a clamping cylinder 61, a warp clamping plate 62, and a first mounting plate 63. The first mounting plate 63 is disposed on a slider on the second guide rail 42. The clamping cylinder 61 is disposed on the first mounting plate 63. The output end of the clamping cylinder 61 is provided with two warp clamping plates 62. The two warp clamping plates 62 are both disposed in the left-right direction and are located in the same horizontal plane. The clamping cylinder 61 is used to drive the two warp clamping plates 62 to move closer or further away from each other. The first mounting plate 63 is provided with a synchronous belt connector 64 for connecting with the synchronous belt of the synchronous belt drive mechanism 43.

[0053] Of the two warp clamping plates 62 at the output end of the gripper cylinder 61, one warp clamping plate 62 is made of steel, and the other warp clamping plate 62 is an electromagnet.

[0054] In use, the two warp clamping plates 62 are pushed closer together by the clamping cylinder 61 to clamp the yarn. During clamping, the warp clamping plate 62 of the electromagnet is energized, so that the two warp clamping plates 62 stick together under the action of magnetic force, so as to prevent the end of the warp clamping plate 62 away from the clamping cylinder 61 from being unable to clamp the yarn.

[0055] like Figure 9As shown, in one embodiment, the yarn separating mechanism 5 includes a translation component 51, a third drive component 52, a spiral yarn separating rod 53, a first micro cylinder 54, a second micro cylinder 55, and a pneumatic scissors 56. The translation component 51 and the second micro cylinder 55 are both located in the middle of the front side of the frame 1. The third drive component 52 and the first micro cylinder 54 are both located on the moving end of the translation component 51. The translation component 51 is used to drive the third drive component 52 and the first micro cylinder 54 to move back and forth. The spiral yarn separating rod 53 is horizontally arranged in the left-right direction and connected to the output end of the third drive component 52. The third drive component 52 is used to drive the spiral yarn separating rod 53 to rotate around its own axis.

[0056] The first micro cylinder 54 is provided with a first micro hook 57 at its rear end, and the second micro cylinder 55 is provided with a second micro hook 58 at one end near the spiral yarn separating rod 53. The first micro cylinder 54 is used to push the first micro hook 57 to move back and forth directly below the spiral yarn separating rod 53, and the second micro cylinder 55 is used to push the second micro hook 58 to move left and right directly below the first micro hook 57.

[0057] A pneumatic shear 56 is provided at both the bottom and top of the frame 1.

[0058] In one embodiment, the translation component 51 includes a second mounting plate 511, a push cylinder 512, and a fixing plate 513. The second mounting plate 511 is horizontally disposed in the middle of the front side of the frame 1. The push cylinder 512 is disposed on the first mounting plate 63. The fixing plate 513 is disposed on the top of the push cylinder 512 and connected to the push rod of the push cylinder 512. The third drive component 52 and the first micro cylinder 54 are both disposed on the fixing plate 513. The push cylinder 512 is used to push the fixing plate 513 to translate back and forth.

[0059] In one embodiment, the spiral yarn separating rod 53 is conical in shape and has a spiral groove on its outer surface. The spiral groove is continuous and extends from one end of the spiral yarn separating rod 53 to the other end. The outer diameter of the spiral yarn separating rod 53 gradually increases from the end away from the third drive component 52 to the end closer to the third drive component 52. The pitch of the spiral groove gradually increases from the end away from the third drive component 52 to the end closer to the third drive component 52.

[0060] In this embodiment, the first drive assembly 33, the second drive assembly 41 and the third drive assembly 52 are all servo motors, and the servo motors are connected to the lead screw / rotating shaft / spiral yarn separating rod through couplings.

[0061] Working principle of the invention:

[0062] The yarn bundle on the yarn cylinder 7 passes through the two yarn guide rods 84 sequentially from top to bottom and from back to front, and the gravity swing rod 83 falls above the yarn bundle under the action of gravity;

[0063] After passing through the guide rod 84, the yarn bundle passes through two guide rollers 12 in sequence from front to back, and then passes through the fixed steel comb 11 and the movable steel comb 21 in sequence. After passing through the movable steel comb 21, it is in a vertical state, and the upper and lower parts of the vertical section are respectively held by two yarn clamping mechanisms 6.

[0064] When separating yarns:

[0065] The first drive assembly 33 drives the lead screw 32 to rotate, so that the moving frame 2 slowly moves along the first guide rail 31 to feed the yarn. The upper and lower first drive assemblies 33 keep in sync and push the cylinder 512 to push the fixed plate 213 to move backward, so that the spiral yarn separating rod 53 is close to the vertical section of the yarn bundle, so that the yarn bundle is close to the outer surface of the spiral yarn separating rod 53. The third drive assembly 52 drives the spiral yarn separating rod 53 to rotate. As the moving frame 2 moves and the spiral yarn separating rod 53 rotates, the yarn bundle moves along the spiral groove to increase the spacing between the yarns, making it easier to hook the yarn out and thread it through the reed.

[0066] In the initial state, the upper pneumatic scissors 56 are located below the upper yarn clamping mechanism 6, and the lower pneumatic scissors 56 are located above the lower yarn clamping mechanism 6. Then, the first micro cylinder 54 pushes the first micro hook 57 to extend and hook out a single yarn, and hook the single yarn to the second micro hook 58. The second micro cylinder 55 pushes the second micro hook 58 to extend and hook the single yarn, and moves the yarn to the reed hook. Then, the upper pneumatic scissors 56 cuts off the top of the single yarn, so that the yarn is draped on the outside of the reed hook. Then, the reed hook hooks hook out the single yarn and moves it towards the reed board until it passes through the reed board. Finally, the lower pneumatic scissors 56 cuts off the bottom of the yarn, completing the single yarn separation and reed threading operation.

[0067] Repeat the above process to complete the yarn separation and reeding operation for all yarns, after which the yarn changing operation can be carried out.

[0068] When changing yarn:

[0069] 1. First yarn changing method: Since the pneumatic scissors 56 located above are below the yarn clamping mechanism 6 at the upper end, after the upper ends of all the yarns in the vertical section of the yarn bundle are cut off, the yarn clamping mechanism 6 at the upper end still clamps the yarns. The gripper cylinder 61 at the upper end keeps the two warp clamping plates 62 in a clamped state. The gripper cylinder 61 at the lower end pushes the two warp clamping plates 62 away from each other to release the yarns. Then, the second drive assembly 41 drives the three synchronous belts 434 to rotate simultaneously, so that the two yarn clamping mechanisms 6 move along the second guide rail 42 and move closer to each other.

[0070] Until the lower yarn clamping mechanism 6 moves to the cut point of the yarn bundle held by the upper yarn clamping mechanism 6, the lower clamping cylinder 61 pushes the two warp clamping plates 62 closer together to clamp the cut point of the yarn bundle. Then, the upper clamping cylinder 61 pushes the two warp clamping plates 62 away from each other to release the yarn bundle. The second drive assembly 41 drives the three synchronous belts 434 to rotate simultaneously, so that the two yarn clamping mechanisms 6 move along the second guide rail 42 and move away from each other. After moving to the initial position, the upper clamping cylinder 61 pushes the two warp clamping plates 62 closer together to clamp the upper part of the vertical section of the yarn bundle, and then the next round of yarn splitting is performed.

[0071] 2. Second yarn changing method: The upper clamping cylinder 61 keeps the two warp clamping plates 62 in a clamped state, and the lower clamping cylinder 61 pushes the two warp clamping plates 62 away from each other to release the yarn. Then, the second drive assembly 41 drives the three synchronous belts 434 to rotate simultaneously, so that the two yarn clamping mechanisms 6 move along the second guide rail 42. The upper yarn clamping mechanism 6 pulls the yarn bundle down until the yarn clamping mechanism 6 originally located at the lower end moves to the top of the moving frame 2 and the yarn clamping mechanism 6 originally located at the upper end moves to the bottom of the moving frame. The two yarn clamping mechanisms 6 switch positions. Then, the upper clamping cylinder 61 pushes the two warp clamping plates 62 closer to each other to clamp the top of the yarn bundle, and then the next round of yarn splitting is performed.

[0072] The above description provides examples of the preferred embodiments of the present invention, and any parts not described in detail are common knowledge to those skilled in the art. The scope of protection of the present invention is determined by the claims, and any equivalent modifications made based on the technical teachings of the present invention are also within the scope of protection of the present invention.

Claims

1. A fully automatic reciprocating yarn separating mechanism for a warping machine, characterized in that, It includes a frame (1), a moving frame (2), a translation mechanism (3), a lifting mechanism (4) and a yarn separating mechanism (5). A fixed steel comb (11) is provided on the top front side of the frame (1), and yarn guide rollers (12) are provided on the front and rear sides of the upper surface of the frame (1). The movable frame (2) is installed in the frame (1) through the translation mechanism (3), and a movable steel comb (21) is provided on the front top of the movable frame (2). The translation mechanism (3) is used to drive the movable frame (2) to translate in the left and right directions. The lifting mechanism (4) is set on the movable frame (2), and the two moving ends of the lifting mechanism (4) are respectively set on both sides of the movable frame (2). Each moving end is provided with a yarn clamping mechanism (6), and the two yarn clamping mechanisms (6) are arranged opposite to each other. When one of the moving ends moves in the vertical direction, the other moving end will move in the opposite direction. A yarn tube (7) is provided on the rear side of the middle part of the frame (1). The yarn bundle on the yarn tube (7) passes through the yarn guide roller (12) located on the rear side of the frame (1), the yarn guide roller (12) located on the front side of the frame (1), the fixed steel comb (11) and the movable steel comb (21) in sequence, and is then clamped by two yarn clamping mechanisms (6) and forms a vertical section. The yarn separating mechanism (5) is located in the middle of the front side of the frame (1). The yarn separating mechanism (5) is used to increase the spacing between the single yarns in the vertical section of the yarn bundle, and to pick out the single yarns in sequence for reed threading, and to cut the single yarns after threading the reed. The lifting mechanism (4) includes a second drive assembly (41), a second guide rail (42), and three sets of synchronous belt drive mechanisms (43). A second guide rail (42) is vertically arranged on both the left and right sides of the movable frame (2). Two yarn clamping mechanisms (6) are respectively arranged on the sliders on the two second guide rails (42). A set of synchronous belt drive mechanisms (43) is vertically arranged on both the left and right sides of the movable frame (2). The two yarn clamping mechanisms (6) are respectively connected to the synchronous belt drive mechanism (43) on the corresponding side. The third set of synchronous belt drive mechanisms (43) is arranged at the top or bottom of the movable frame (2), and the third set of synchronous belt drive mechanisms (43) is connected to the other two sets of synchronous belt drive mechanisms (43). The output end of the second drive assembly (41) is connected to one of the sets of synchronous belt drive mechanisms (43). The second drive assembly (41) is used to drive the three sets of synchronous belt drive mechanisms (43) to rotate simultaneously, so as to drive the two yarn clamping mechanisms (6) to move in opposite directions along the guide rail. The yarn separating mechanism (5) includes a translation component (51), a third drive component (52), a spiral yarn separating rod (53), a first micro cylinder (54), a second micro cylinder (55), and pneumatic scissors (56). The translation component (51) and the second micro cylinder (55) are both located in the middle of the front side of the frame (1). The third drive component (52) and the first micro cylinder (54) are both located on the moving end of the translation component (51). The translation component (51) is used to drive the third drive component (52) and the first micro cylinder (54) to move back and forth. The spiral yarn separating rod (53) is horizontally arranged in the left and right direction and connected to the output end of the third drive component (52). The third drive component (52) is used to drive the spiral yarn separating rod (53) to rotate around its own axis. The first micro cylinder (54) is provided with a first micro hook (57) at its rear end, and the second micro cylinder (55) is provided with a second micro hook (58) at one end near the spiral yarn separating rod (53). The first micro cylinder (54) is used to push the first micro hook (57) to move back and forth directly below the spiral yarn separating rod (53), and the second micro cylinder (55) is used to push the second micro hook (58) to move left and right directly below the first micro hook (57). A pneumatic shear (56) is provided at both the bottom and top of the frame (1).

2. The fully automatic reciprocating yarn separating mechanism of the warping machine according to claim 1, characterized in that, A tension mechanism (8) is provided between the yarn bobbin (7) and the frame (1), and the tension mechanism (8) is used to keep the tension of the yarn bundle within a preset range.

3. The fully automatic reciprocating yarn separating mechanism of the warping machine according to claim 2, characterized in that, The tension mechanism (8) includes a tension support (81), a gravity swing arm (82), and a gravity swing rod (83). A yarn guide rod (84) is provided on both the front and rear sides of the tension support (81). The rear end of the gravity swing arm (82) is hinged to the middle of the tension support (81). The gravity swing rod (83) is provided at the front end of the gravity swing arm (82). The gravity swing rod (83) can rotate in the vertical plane through the gravity swing arm (82).

4. The fully automatic reciprocating yarn separating mechanism of the warping machine according to claim 1, characterized in that, The translation mechanism (3) includes two sets of first guide rails (31), lead screws (32) and a first drive assembly (33). The two sets of first guide rails (31), lead screws (32) and the first drive assembly (33) are respectively set at the bottom and top of the frame (1). The first guide rails (31) and lead screws (32) are set on the frame (1) in the left and right direction. The output end of the first drive assembly (33) is connected to one end of the lead screw (32). The moving frame (2) is fixed on the slider of the first guide rail (31) and the moving frame (2) is connected to the nut seat on the lead screw (32). The first drive assembly (33) is used to drive the lead screw (32) to rotate so as to drive the moving frame (2) to translate along the first guide rail (31).

5. The fully automatic reciprocating yarn separating mechanism of the warping machine according to claim 1, characterized in that, The synchronous belt drive mechanism (43) includes an adjustable bearing mounting base (431), a bearing mounting base (432), a synchronous pulley (433), and a synchronous belt (434). The adjustable bearing mounting base (431) and the bearing mounting base (432) are both mounted on the movable frame (2). The outer side of the rotating shaft inside the adjustable bearing mounting base (431) and the bearing mounting base (432) is provided with a synchronous pulley (433), and the two synchronous pulleys (433) are connected by the synchronous belt (434).

6. The fully automatic reciprocating yarn separating mechanism of the warping machine according to claim 1 or 5, characterized in that, The yarn clamping mechanism (6) includes a clamping cylinder (61), a warp clamping plate (62), and a first mounting plate (63). The first mounting plate (63) is mounted on a slider on a second guide rail (42). The clamping cylinder (61) is mounted on the first mounting plate (63). The output end of the clamping cylinder (61) is provided with two warp clamping plates (62). The two warp clamping plates (62) are both arranged in the left-right direction and located in the same horizontal plane. The clamping cylinder (61) is used to drive the two warp clamping plates (62) to move closer or further away from each other. The first mounting plate (63) is provided with a synchronous belt connector (64) for connecting with the synchronous belt of the synchronous belt drive mechanism (43).

7. The fully automatic reciprocating yarn separating mechanism of the warping machine according to claim 6, characterized in that, Of the two warp clamping plates (62) at the output end of the gripper cylinder (61), one warp clamping plate (62) is made of steel, and the other warp clamping plate (62) is an electromagnet.

8. The fully automatic reciprocating yarn separating mechanism of the warping machine according to claim 1, characterized in that, The spiral yarn separating rod (53) is conical in shape and has a spiral groove on its outer surface. The spiral groove is continuous and extends from one end of the spiral yarn separating rod (53) to the other end. The outer diameter of the spiral yarn separating rod (53) gradually increases from the end away from the third drive assembly (52) to the end closer to the third drive assembly (52). The pitch of the spiral groove gradually increases from the end away from the third drive assembly (52) to the end closer to the third drive assembly (52).

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