Wire drawing machine capable of breaking yarn ball connecting line and assisting upper head changing and control method of wire drawing machine

Abstract

The invention relates to a wire drawing machine capable of breaking a yarn roll connecting line and assisting upper head replacement and a control method thereof, and belongs to the technical field of wire drawing machines. The wire drawing machine comprises a driving main rack, a standby machine head and a working machine head are arranged on the end face of the driving main rack, a transverse moving wire arranging frame is arranged at the outer side end of the working machine head, and a slow pulling frame is arranged at the lower end of the transverse moving wire arranging frame; a creeling turntable movably connected and fixed with the driving main frame in a nested manner is arranged between the standby machine head and the driving main frame, and a creeling turntable movably connected and fixed with the driving main frame in a nested manner is arranged between the working machine head and the driving main frame; and an auxiliary upper creeling winding mechanism movably connected with the outer side end of the working machine head in a pressing manner is arranged at the upper end of the creeling turntable. The device has the characteristics of compact structure, good operation stability and high efficiency. The automatic yarn breaking function of the wire drawing machine is achieved, and the conditions of high labor intensity and low working efficiency caused by frequent manual operation are avoided. The yarn passes through the space between the machine head and the V-shaped yarn winding sheet in parallel without obstacles, the angle and the linear speed of the yarn are not changed, and the stability of the wire drawing process is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of wire drawing machines, and particularly relates to a wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement and a control method thereof. Background Art

[0002] In the current glass fiber kiln wire drawing process, there are two wire drawing and forming methods. One is the cylindrical direct yarn wire drawing method, and the other is the saddle-shaped cake yarn wire drawing method. An upper wire ring must be set for each head. They push the yarn out of the front upper wire ring through a push screw rod for upper head replacement. After the upper head or bobbin replacement is completed, the push screw rod retracts. Under the action of the rotation of the push screw rod and the head, the yarn exists in a spiral shape between the two winding cylinders as a "yarn cluster connection". This integrated upper wire ring must be manually cut and cleaned after each upper head replacement. Not only is there a lot of waste yarn that cannot be utilized during upper head replacement, but also a lot of hairy yarn is generated, which affects the environment. In addition, the internal and external layer connections between yarn clusters and between upper wire rings also need to be cut to unload the bobbin.

[0003] Currently, to meet the requirement of the manipulator to pick up and unload the yarn bobbin, it is necessary to manually cut the yarn connection between the upper head replacement yarn on the upper wire ring and the winding cylinder, and then the manipulator can participate in the automatic yarn picking and unloading operation. Such a man-machine cross-operation has potential safety hazards. Due to the poor environment of the glass fiber wire drawing process and frequent manual operations, the labor intensity is high and the efficiency is low, which is not conducive to the full realization of workshop automation and hinders the automation process of intelligent manufacturing.

[0004] Considering that if an automatic yarn breaking mechanism is adopted without manual operation, for the cake yarn wire drawing process, the cake is in a saddle shape, and under the action of the push screw rod, the head and tail yarns pass through the gap between the two winding cylinders in a positive and negative spiral manner without obstruction, and automatic yarn cutting is easier. For the direct yarn wire drawing process, the cake is cylindrical, the yarn roll diameter is large, and the head diameter is small. The distance between the two yarn rolls forms a deep groove. When the push screw rod pushes the yarn out, the outer tail yarn is likely to fall into the deep groove and stay for multiple turns, making it difficult to implement automatic yarn breaking. Summary of the Invention

[0005] The present invention mainly solves the deficiencies existing in the prior art, and provides a wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement and a control method thereof, which has the characteristics of compact structure, good operation stability and high efficiency. It solves the problems of potential safety hazards in man-machine cross-operation and realizes the automatic yarn picking and unloading of the manipulator. The automatic yarn breaking function of the wire drawing machine is realized, avoiding the high labor intensity and low work efficiency caused by frequent manual operations. The yarn passes through between the head and the V-shaped winding piece smoothly without obstruction, and at the same time, the yarn angle and linear velocity remain unchanged, ensuring the stability of the wire drawing process.

[0006] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0007] A wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement, including a driving main frame. A spare head and a working head are provided on the end face of the driving main frame. A transverse wire arranging frame is provided on the outer side end of the working head. A slow drawing frame is provided at the lower end of the transverse wire arranging frame. Between the spare head and the driving main frame, and between the working head and the driving main frame, there is a cylinder changing turntable fixedly connected to the driving main frame in an activity nested manner. An auxiliary upper head replacement winding mechanism is provided on the upper end of the cylinder changing turntable and is in an activity press connection with the outer side end of the working head. The structure of the transverse wire arranging frame is the prior art with the application number 2020232249998, and the structure of the slow drawing frame is the prior art with the application number 2020232279993.

[0008] Preferably, the auxiliary upper head replacement winding mechanism includes a moving bracket. A fixed bracket is provided between the upper end of the moving bracket and the driving main frame and is in an activity inserted connection with the moving bracket. A bearing seat II is provided at the lower end of the fixed bracket. A lagging push rod piston fixedly connected to the bearing seat II in a reset spring inserted manner is provided at the front end of the bearing seat II. An air ring is provided between the rear end of the lagging push rod piston and the bearing seat II. A number of V-shaped yarn winding pieces are provided around the lagging push rod piston. A V-shaped piece piston is provided between the V-shaped yarn winding pieces and the bearing seat II and the lagging push rod piston.

[0009] Preferably, a connecting rod is provided between the middle of the V-shaped piece piston and the V-shaped yarn winding piece, and the rear end of the V-shaped yarn winding piece is fixedly connected to the V-shaped piece piston by a pin shaft; a spring pressing piece is provided between the rear end of the V-shaped piece piston and the bearing seat II, and a number of V-shaped piece opening springs guided and inserted by a pin shaft are provided between the spring pressing piece and the V-shaped piece piston.

[0010] Preferably, a servo motor I is provided in the fixed bracket. A ball screw is provided at the front end of the servo motor I. A bearing seat I is provided between the ball screw and the servo motor I. A linear guide rail is provided between the fixed bracket and the moving bracket. A pushing sleeve threadedly sleeved on the ball screw is provided between the ball screw and the moving bracket.

[0011] Preferably, a servo motor II fixedly connected to the moving bracket is provided between the V-shaped yarn winding piece and the fixed bracket. A driving synchronous pulley fixedly connected to the servo motor II by a flat key limit insertion is provided on the end face of the servo motor II. A driven synchronous pulley I fixedly connected to the lagging push rod piston by a flat key limit insertion is provided at the rear end of the bearing seat II. A locking nut threadedly sleeved on the lagging push rod piston is provided at the rear end of the driven synchronous pulley I. A synchronous belt I is provided between the driving synchronous pulley and the driven synchronous pulley I.

[0012] Preferably, a yarn breaking mechanism is provided above the spare head, and the yarn breaking mechanism includes an abrasive breaking component or a cutting component.

[0013] Preferably, the grinding and breaking assembly includes a rotating shaft I, above which there is a fixed shaft. On one side end of the rotating shaft I, there is a front sleeve fixedly sleeved with the fixed shaft and the rotating shaft I. On the other side end of the rotating shaft I, there is a rear seat fixedly sleeved with the fixed shaft and the rotating shaft I. On the side of the rear seat, there is a rotating shaft rotating cylinder I. Between the rotating shaft rotating cylinder I and the rotating shaft I, there is a rotating shaft arm I. Between the rotating shaft arm I and the rear seat, there is a support seat sleeved with the rotating shaft I. On the rotating shaft I, there are several connecting rod pieces I. At the front end of the connecting rod piece I, there is a connecting rod piece II. Between the connecting rod piece II and the connecting rod piece I, there is a connecting rod piece III. Between the front end of the connecting rod piece II and the rear end of the connecting rod piece I, there is a pull rod II on the side of the connecting rod piece III. Between the front end of the connecting rod piece II and the front end of the connecting rod piece I, there is a tension spring above the connecting rod piece III. Between the rear seat and the front sleeve, there are several pull rod fixing seats. Between the front end of the pull rod fixing seat and the middle part of the side wall of the rod piece I, there is a pull rod I.

[0014] Preferably, the cutting assembly includes a rotating shaft II. At both ends of the rotating shaft II, there are rotating shaft seats fixedly connected by bearing-type nesting with the rotating shaft II. Between the rotating shaft II and the working head, there is a cutting tool. Between the cutting tool and the rotating shaft II, there is a connecting rod fixedly clamped with the rotating shaft II by hoop-type clamping. On one side of the rotating shaft II, there is a rotating shaft longitudinal cylinder. Between the rotating shaft longitudinal cylinder and the rotating shaft seat, there is a fixing plate. Between the rotating shaft longitudinal cylinder and the fixing plate, there is a rotating shaft longitudinal cylinder seat fixedly connected to the fixing plate by screws. Between the rotating shaft longitudinal cylinder and the fixing plate, there is a rotating shaft arm II fixedly sleeved with the rotating shaft II. Between the rotating shaft arm II and the upper part of the fixing plate, there is a rotating shaft rotating cylinder II for driving the rotating shaft arm II to operate.

[0015] Preferably, there is a partition frame between the spare head and the working head. Between the lower end of the auxiliary upper head-changing winding mechanism and the working head, there is a wire blocking frame. On the wire blocking frame, there are an upper wire blocking screw rod and a lower wire blocking screw rod.

[0016] A control method for a wire drawing machine capable of breaking the connection of a yarn bobbin and assisting in upper head changing includes the following operating steps:

[0017] First step: The auxiliary upper head-changing winding mechanism is provided with a fixing frame, which is fixed above the working head on the end face of the driving main frame, extending from the panel of the driving main frame to the front end of the working head, and the auxiliary upper head-changing winding mechanism is supported by a moving bracket to correspond to the front end of the working head.

[0018] Second step: Before operation, the auxiliary upper head-changing winding mechanism is in a state of being opened without air pressure and is about 2 - 3 cm away from the front end of the working head to allow the yarn to pass through. The slow pulling frame starts to lead the yarn down, and the auxiliary upper head-changing winding mechanism moves closer to the working head.

[0019] Step 3: Insert the yarn and the winding cylinder, and insert the V-shaped yarn winding piece about 2 cm into the winding cylinder to cover the surface. At this time, the auxiliary upper head-changing winding mechanism rotates synchronously with the working headstock, and the yarn is wound on the V-shaped yarn winding piece.

[0020] Step 4: The yarn guide frame instantly retracts to the middle of the first winding cylinder, and then the yarn guide frame is pushed out again, approaches the V-shaped yarn winding piece and then directly retracts to the bottom.

[0021] Step 5: The auxiliary upper head-changing winding mechanism leaves the winding cylinder, the compressed air is turned on, the V-shaped piece piston works, so that the V-shaped yarn winding piece shrinks to a vertical state. Then the piston of the lag-type yarn pushing rod works to push out the yarn wound on the V-shaped yarn winding piece and let it fall freely.

[0022] Step 6: When changing the full bobbin, the auxiliary upper head-changing winding mechanism operates synchronously with the full bobbin headstock and moves towards the working headstock to insert about 2 cm into the winding cylinder. The lower yarn guide rod pushes the yarn into the groove of the V-shaped yarn winding piece.

[0023] Step 7: The lower yarn guide rod and the yarn move with the auxiliary upper head-changing winding mechanism, and slightly leave the end face of the headstock winding cylinder to maintain the linear velocity. Start the bobbin-changing turntable to switch the spare headstock to the working headstock position. At this time, the yarn breaking mechanism is used to break the yarn end of the full bobbin at the spare headstock.

[0024] Step 8: The auxiliary upper head-changing winding mechanism and the lower yarn guide rod instantly move and insert onto the winding cylinder. Then the lower yarn guide rod continues to quickly retract to the middle of the first winding cylinder, is pushed out again, approaches the V-shaped yarn winding piece to press the end yarn and then directly retracts to the bottom. At this time, the auxiliary upper head-changing winding mechanism leaves the winding cylinder, the compressed air is turned on and the V-shaped piece piston works, so that the V-shaped yarn winding piece shrinks to a vertical state. Then the piston of the lag-type yarn pushing rod works to push out the yarn wound on the V-shaped yarn winding piece and let it fall freely.

[0025] The present invention can achieve the following effects:

[0026] The present invention provides a wire drawing machine capable of breaking the connection of a yarn cluster and assisting in changing the head and its control method. Compared with the prior art, it has the characteristics of compact structure, good running stability and high efficiency. It solves the problems of potential safety hazards in the man-machine cross-operation and realizes the automatic yarn taking and bobbin unloading by the manipulator. It realizes the automatic yarn breaking function of the wire drawing machine, avoiding the high labor intensity and low working efficiency caused by frequent manual operations. It enables the yarn to pass through between the headstock and the V-shaped yarn winding piece smoothly without obstacles, and at the same time, the yarn angle and linear velocity remain unchanged, ensuring the stability of the wire drawing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the present invention.

[0028] Figure 2 is a front view structural schematic diagram of the present invention.

[0029] Figure 3 It is a schematic side view structure of the present invention.

[0030] Figure 4 It is a sectional view of the state structure of the auxiliary upper head-changing winding mechanism of the present invention when there is no compressed air.

[0031] Figure 5 It is a sectional view of the state structure of the auxiliary upper head-changing winding mechanism of the present invention when there is compressed air.

[0032] Figure 6 It is a schematic structure diagram of the grinding and breaking component of the present invention.

[0033] Figure 7 It is a schematic structure diagram of the working state of the grinding and breaking component of the present invention.

[0034] Figure 8 It is a schematic structure diagram of the disengaged state of the grinding and breaking component of the present invention.

[0035] Figure 9 It is a schematic structure diagram of the cutting component of the present invention.

[0036] Figure 10 It is a schematic structure diagram of the working state of the cutting component of the present invention and the wire drawing machine.

[0037] Figure 11 It is a schematic structure diagram of the cutting component of the present invention cutting the yarn.

[0038] In the figure: spare head 1, yarn breaking mechanism 2, auxiliary upper head-changing winding mechanism 3, driving main frame 4, wire retaining frame 5, working head 6, transverse wire arranging frame 7, slow pulling frame 8, partition frame 9, bobbin changing turntable 10, upper wire retaining screw 11, lower wire retaining screw 12, fixing frame 13, servo motor I 14, bearing seat I 15, ball screw 16, linear guide 17, pushing sleeve 18, moving bracket 19, servo motor II 20, driving synchronous pulley 21, synchronous belt 22, locking nut 23, driven synchronous pulley 24, bearing seat II 25, V-shaped piece expanding spring 26, air ring 27, V-shaped piece piston 28, lag-type yarn pushing rod piston 29, spring pressing piece 30, connecting rod 31, V-shaped winding piece 32, front sleeve 33, fixed shaft 34, pull rod fixing seat 35, rotating shaft I 36, rear seat 37, rotating shaft rotating cylinder I 38, rotating shaft arm I 39, support seat 40, pull rod I 41, connecting rod piece I 42, tension spring 43, connecting rod piece II 44, connecting rod piece III 45, pull rod II 46, fixing plate 47, rotating shaft rotating cylinder II 48, rotating shaft II 49, rotating shaft seat 50, connecting rod 51, cutting knife 52, rotating shaft longitudinal cylinder seat 53, rotating shaft longitudinal cylinder 54, rotating shaft arm II 55. Detailed implementation manners

[0039] The technical solution of the invention will be further specifically described below through embodiments in conjunction with the accompanying drawings.

[0040] Embodiment 1: As Figures 1-8 shown, a wire drawing machine capable of breaking the connection of yarn clusters and assisting in head replacement includes a driving main frame 4. A spare head 1 and a working head 6 are provided on the end face of the driving main frame 4. A partition frame 9 is provided between the spare head 1 and the working head 6. A transverse wire arranging frame 7 is provided at the outer side end of the working head 6. A slow drawing frame 8 is provided at the lower end of the transverse wire arranging frame 7. Between the spare head 1 and the driving main frame 4 and between the working head 6 and the driving main frame 4, there is a bobbin changing turntable 10 movably nested and connected to the driving main frame 4. An auxiliary head replacement winding mechanism 3 is provided at the upper end of the bobbin changing turntable 10 and is movably press-connected to the outer side end of the working head 6. A wire blocking frame 5 is provided between the lower end of the auxiliary head replacement winding mechanism 3 and the working head 6. An upper wire blocking screw rod 11 and a lower wire blocking screw rod 12 are provided on the wire blocking frame 5.

[0041] A yarn breaking mechanism 2 is provided above the spare head 1. The yarn breaking mechanism 2 is a grinding and breaking assembly. The grinding and breaking assembly includes a rotating shaft Ⅰ 36. A fixed shaft 34 is provided above the rotating shaft Ⅰ 36. A front sleeve 33 sleeved and fixed to the fixed shaft 34 and the rotating shaft Ⅰ 36 is provided at one side end of the rotating shaft Ⅰ 36. A rear seat 37 sleeved and fixed to the fixed shaft 34 and the rotating shaft Ⅰ 36 is provided at the other side end of the rotating shaft 36. A rotating shaft rotating cylinder Ⅰ 38 is provided at the side of the rear seat 37. A rotating shaft arm Ⅰ 39 is provided between the rotating shaft rotating cylinder Ⅰ 38 and the rotating shaft Ⅰ 36. A support seat 40 sleeved to the rotating shaft Ⅰ 36 is provided between the rotating shaft arm Ⅰ 39 and the rear seat 37. A number of connecting rod pieces Ⅰ 42 are provided on the rotating shaft Ⅰ 36. A connecting rod piece Ⅱ 44 is provided at the front end of the connecting rod piece Ⅰ 42. A connecting rod piece Ⅲ 45 is provided between the connecting rod piece Ⅱ 44 and the connecting rod piece Ⅰ 42. A pull rod Ⅱ 46 is provided at the side of the connecting rod piece Ⅲ 45 between the front end and the rear end of the connecting rod piece Ⅱ 44. A tension spring 43 is provided above the connecting rod piece Ⅲ 45 between the front ends of the connecting rod piece Ⅱ 44 and the connecting rod piece Ⅰ 42. A number of pull rod fixing seats 35 are provided between the rear seat 37 and the front sleeve 33. A pull rod Ⅰ 41 is provided between the front end of the pull rod fixing seat 35 and the middle part of the side wall of the rod piece Ⅰ 42.

[0042] The auxiliary upper head-changing winding mechanism 3 includes a moving support 19. There is a fixed frame 13 movably inserted and connected to the moving support 19 between the upper end of the moving support 19 and the driving main frame 4. A servo motor I 14 is arranged inside the fixed frame 13. A ball screw 16 is arranged at the front end of the servo motor I 14. A bearing block I 15 is arranged between the ball screw 16 and the servo motor I 14. A linear guide rail 17 is arranged between the fixed frame 13 and the moving support 19. A push sleeve 18 threadedly sleeved on the ball screw 16 is arranged between the ball screw 16 and the moving support 19. A bearing block II 25 is arranged at the lower end of the fixed frame 13. A lagging yarn-pushing rod piston 29 fixedly inserted and connected to the bearing block II 25 in a reset spring manner is arranged at the front end of the bearing block II 25. An air ring 27 is arranged between the rear end of the lagging yarn-pushing rod piston 29 and the bearing block II 25. A number of V-shaped yarn winding pieces 32 are arranged around the lagging yarn-pushing rod piston 29. A V-shaped piece piston 28 is arranged between the V-shaped yarn winding pieces 32 and the bearing block II 25, the lagging yarn-pushing rod piston 29. A connecting rod 31 is arranged between the middle of the V-shaped piece piston 28 and the V-shaped yarn winding pieces 32. The rear end of the V-shaped yarn winding pieces 32 is fixedly inserted and connected to the V-shaped piece piston 28 by a pin shaft. A spring pressing piece 30 is arranged between the rear end of the V-shaped piece piston 28 and the bearing block II 25. A number of V-shaped piece opening springs 26 inserted and guided by a pin shaft are arranged between the spring pressing piece 30 and the V-shaped piece piston 28. A servo motor II 20 fixedly connected to the moving support 19 is arranged between the V-shaped yarn winding pieces 32 and the fixed frame 13. A driving synchronous pulley 21 fixedly inserted and limited by a flat key to the servo motor II 20 is arranged on the end face of the servo motor II 20. A driven synchronous pulley I 24 fixedly inserted and limited by a flat key to the lagging yarn-pushing rod piston 29 is arranged at the rear end of the bearing block II 25. A locking nut 23 threadedly sleeved and fixed to the lagging yarn-pushing rod piston 29 is arranged at the rear end of the driven synchronous pulley I 24. A synchronous belt I 22 is arranged between the driving synchronous pulley 21 and the driven synchronous pulley I 24.

[0043] The control method of a wire drawing machine capable of breaking the connection of a yarn ball and assisting in upper head-changing includes the following operation steps:

[0044] The first step: The auxiliary upper head-changing winding mechanism 3 is provided with a fixed frame 13. The fixed frame 13 is fixed above the working head 1 on the end face of the driving main frame 4, extending from the panel of the driving main frame 4 to the front end of the working head 1. The auxiliary upper head-changing winding mechanism 3 is supported by the moving support 19 to correspond to the front end of the working head 6.

[0045] The second step: Before operation, the auxiliary upper head-changing winding mechanism 3 is in a state of being opened without air pressure, and is about 2-3 cm away from the front end of the working head 6 to allow the yarn to pass through. The slow pulling frame 8 starts to lead the yarn down, and the auxiliary upper head-changing winding mechanism 3 moves closer to the working head 6.

[0046] Step 3: Insert the yarn and the winding bobbin, and insert the V-shaped yarn winding piece 32 about 2 cm into the winding bobbin to cover the surface. At this time, the auxiliary upper head-changing winding mechanism 3 rotates synchronously with the working headstock 6, and the yarn is wound around the V-shaped yarn winding piece 32.

[0047] Step 4: The yarn guide frame 5 instantaneously retracts to the middle of the first winding bobbin, and then the yarn guide frame 5 is pushed out again, approaches the V-shaped yarn winding piece 32, and then directly retracts to the bottom.

[0048] Step 5: The auxiliary upper head-changing winding mechanism 3 leaves the winding bobbin, the compressed air is turned on, the V-shaped piece piston 28 works, so that the V-shaped yarn winding piece 32 contracts to a vertical state. Then the lag-type yarn pushing rod piston 29 works to push out the yarn wound around the V-shaped yarn winding piece 32 to freely fall.

[0049] Step 6: When changing the full bobbin, the auxiliary upper head-changing winding mechanism 3 operates synchronously with the full bobbin headstock and moves towards the working headstock 6 and inserts about 2 cm into the winding bobbin. The lower yarn guide rod 11 pushes the yarn into the groove of the V-shaped yarn winding piece 32.

[0050] Step 7: The lower yarn guide rod 11 and the yarn move with the auxiliary upper head-changing winding mechanism 3, and slightly leave the end face of the headstock winding bobbin to maintain the linear velocity. The change-over turntable 10 is started to switch the spare headstock 1 to the position of the working headstock 6. At this time, the yarn breaking mechanism 2 is used to break the yarn end of the full bobbin at the spare headstock 1.

[0051] The connecting rod piece II 44 is rotated and pressed down through the rotating shaft I 36. The number is matched according to the amount of the yarn cake. The grinding and breaking assembly is arranged at the junction of the two winding bobbins. When changing the bobbins of the double headstocks, it is rotated and pressed down, waiting for the headstock that is decelerating. It touches the tension spring 43 when rotating 180 degrees with the bobbin change, and grinds and breaks the connecting yarn between the two winding bobbins.

[0052] Step 8: The auxiliary upper head-changing winding mechanism 3 and the lower yarn guide rod 11 instantaneously move and insert onto the winding bobbin. Then the lower yarn guide rod 11 continues to quickly retract to the middle of the first winding bobbin, is pushed out again, approaches the V-shaped yarn winding piece 32 to press the head yarn, and then directly retracts to the bottom. At this time, the auxiliary upper head-changing winding mechanism 3 leaves the winding bobbin, the compressed air is turned on, the V-shaped piece piston 28 works, so that the V-shaped yarn winding piece 32 contracts to a vertical state. Then the lag-type yarn pushing rod piston 29 works to push out the yarn wound around the V-shaped yarn winding piece 32 to freely fall.

[0053] Example 2: As Figures 1-5 and Figures 9-11As shown in the figure, a wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement includes a driving main frame 4. A spare head 1 and a working head 6 are provided on the end face of the driving main frame 4. A partition frame 9 is provided between the spare head 1 and the working head 6. A transverse wire arranging frame 7 is provided at the outer end of the working head 6. A slow drawing frame 8 is provided at the lower end of the transverse wire arranging frame 7. A bobbin changing turntable 10 that is movably nested and connected to the driving main frame 4 is provided between the spare head 1 and the driving main frame 4 and between the working head 6 and the driving main frame 4. An auxiliary upper head replacement winding mechanism 3 that is movably press-connected to the outer end of the working head 6 is provided at the upper end of the bobbin changing turntable 10. A wire blocking frame 5 is provided between the lower end of the auxiliary upper head replacement winding mechanism 3 and the working head 6. An upper wire blocking screw rod 11 and a lower wire blocking screw rod 12 are provided on the wire blocking frame 5.

[0054] A yarn breaking mechanism 2 is provided above the spare head 1. The yarn breaking mechanism 2 is a cutting component. The cutting component includes a rotating shaft II 49. Rotating shaft seats 50 that are bearing-nested and connected to the rotating shaft II 49 are provided at both ends of the rotating shaft II 49. A cutting knife 52 is provided between the rotating shaft II 49 and the working head 6. A connecting rod 51 that is hoop-embedded and fixed to the rotating shaft II 49 is provided between the cutting knife 52 and the rotating shaft II 49. A longitudinal rotating shaft cylinder 54 is provided on one side of the rotating shaft II 49. A fixing plate 47 is provided between the longitudinal rotating shaft cylinder 54 and the rotating shaft seat 50. A longitudinal rotating shaft cylinder seat 53 that is screw-connected to the fixing plate 47 is provided between the longitudinal rotating shaft cylinder 54 and the fixing plate 47. A rotating shaft arm II 55 that is fixedly sleeved with the rotating shaft II 49 is provided between the longitudinal rotating shaft cylinder 54 and the fixing plate 47. A rotating shaft rotating cylinder II 48 for driving the rotating shaft arm II 55 to operate is provided between the rotating shaft arm II 55 and the upper part of the fixing plate 47.

[0055] The auxiliary upper head-changing winding mechanism 3 includes a moving bracket 19. Between the upper end of the moving bracket 19 and the driving main frame 4, there is a fixed bracket 13 which is movably inserted and connected to the moving bracket 19. Inside the fixed bracket 13, there is a servo motor I 14. At the front end of the servo motor I 14, there is a ball screw 16. Between the ball screw 16 and the servo motor I 14, there is a bearing block I 15. Between the fixed bracket 13 and the moving bracket 19, there is a linear guide rail 17. Between the ball screw 16 and the moving bracket 19, there is a pushing sleeve 18 which is threadedly sleeved on the ball screw 16. At the lower end of the fixed bracket 13, there is a bearing block II 25. At the front end of the bearing block II 25, there is a lagging yarn-pushing rod piston 29 which is inserted and fixed to the bearing block II 25 in a reset spring manner. Between the rear end of the lagging yarn-pushing rod piston 29 and the bearing block II 25, there is an air ring 27. Around the lagging yarn-pushing rod piston 29, there are several V-shaped yarn-winding pieces 32. Between the V-shaped yarn-winding pieces 32 and the bearing block II 25, the lagging yarn-pushing rod piston 29, there is a V-shaped piece piston 28. Between the middle of the V-shaped piece piston 28 and the V-shaped yarn-winding pieces 32, there is a connecting rod 31. The rear end of the V-shaped yarn-winding pieces 32 is inserted and fixed to the V-shaped piece piston 28 by a pin shaft. Between the rear end of the V-shaped piece piston 28 and the bearing block II 25, there is a spring pressing piece 30. Between the spring pressing piece 30 and the V-shaped piece piston 28, there are several V-shaped piece expanding springs 26 which are inserted and guided by a pin shaft. Between the V-shaped yarn-winding pieces 32 and the fixed bracket 13, there is a servo motor II 20 which is fixedly connected to the moving bracket 19. On the end face of the servo motor II 20, there is a driving synchronous pulley 21 which is inserted and fixed to the servo motor II 20 in a flat key limiting manner. At the rear end of the bearing block II 25, there is a driven synchronous pulley I 24 which is inserted and fixed to the lagging yarn-pushing rod piston 29 in a flat key limiting manner. At the rear end of the driven synchronous pulley I 24, there is a locking nut 23 which is threadedly sleeved and fixed to the lagging yarn-pushing rod piston 29. Between the driving synchronous pulley 21 and the driven synchronous pulley I 24, there is a synchronous belt I 22.

[0056] The control method of a wire drawing machine capable of breaking the connection of a yarn ball and assisting in upper head-changing includes the following operation steps:

[0057] The first step: The auxiliary upper head-changing winding mechanism 3 is provided with a fixed bracket 13. The fixed bracket 13 is fixed above the working head 1 on the end face of the driving main frame 4, extending from the panel of the driving main frame 4 to the front end of the working head 1. The auxiliary upper head-changing winding mechanism 3 is supported by the moving bracket 19 and corresponds to the front end of the working head 6.

[0058] The second step: Before operation, the auxiliary upper head-changing winding mechanism 3 is in an airless open state and is about 2 - 3 cm away from the front end of the working head 6 to allow the yarn to pass through. The slow pulling frame 8 starts to lead the yarn down, and the auxiliary upper head-changing winding mechanism 3 moves closer to the working head 6.

[0059] Step 3: Insert the yarn and the winding cylinder, and insert the V-shaped yarn winding piece 32 about 2 cm into the winding cylinder to cover the surface. At this time, the auxiliary upper head-changing winding mechanism 3 rotates synchronously with the working headstock 6, and the yarn is wound around the V-shaped yarn winding piece 32.

[0060] Step 4: The yarn guide frame 5 instantly retracts to the middle of the first winding cylinder, and then the yarn guide frame 5 is pushed out again, approaches the V-shaped yarn winding piece 32, and then directly retracts to the bottom.

[0061] Step 5: The auxiliary upper head-changing winding mechanism 3 leaves the winding cylinder, the compressed air is turned on, the V-shaped piece piston 28 works, so that the V-shaped yarn winding piece 32 contracts and is in a vertical state. Then the lag-type yarn pushing rod piston 29 works to push out the yarn wound around the V-shaped yarn winding piece 32 and let it fall freely.

[0062] Step 6: When changing the full cylinder, the auxiliary upper head-changing winding mechanism 3 operates synchronously with the full cylinder headstock and moves towards the working headstock 6 and inserts about 2 cm into the winding cylinder. The lower yarn guide rod 11 pushes the yarn into the groove of the V-shaped yarn winding piece 32.

[0063] Step 7: The lower yarn guide rod 11 and the yarn move with the auxiliary upper head-changing winding mechanism 3, and slightly leave the end face of the headstock winding cylinder to maintain the linear velocity. Start the cylinder-changing turntable 10 to switch the spare headstock 1 to the position of the working headstock 6. At this time, the yarn breaking mechanism 2 breaks the yarn end of the full cylinder at the spare headstock 1.

[0064] Utilize the expansion piece of the spare headstock 1 to contract, let the yarn roll droop, so that the inside of the lower winding cylinder is separated from the expansion piece. There are hook-type cutting knives 52 between the winding cylinders. The cutting knives 52 are installed on the connecting rod 51, and each connecting rod 51 is fixed to the rotating shaft II 49. The rotating shaft II 49 can rotate and move longitudinally a little. The whole mechanism is installed on the side wall and is driven and controlled by the rotating shaft rotating cylinder II 48 and the rotating shaft longitudinal cylinder 54. When cutting the yarn, the spare headstock 1 stops and contracts the expansion piece. At this time, the rotating shaft II 4 is driven by the rotating shaft rotating cylinder II 48 to make the connecting rod 51 rotate and lift, flatten the port of one of the winding cylinders, and expose the port of the adjacent winding cylinder. The cutting knife 52 is pushed into the exposed port of the winding cylinder by the rotating shaft longitudinal cylinder 54. At this time, the spare headstock 1 slowly rotates to automatically cut the connecting yarn between the two winding cylinders.

[0065] Step 8: The auxiliary upper head-changing winding mechanism 3 and the lower yarn guide rod 11 instantly move and insert onto the winding cylinder, and the lower yarn guide rod 11 continues to quickly retract to the middle of the first winding cylinder, is pushed out again, approaches the V-shaped yarn winding piece 32 to press the head yarn, and then directly retracts to the bottom. At this time, the auxiliary upper head-changing winding mechanism 3 leaves the winding cylinder, the compressed air is turned on, the V-shaped piece piston 28 works, so that the V-shaped yarn winding piece 32 contracts and is in a vertical state. Then the lag-type yarn pushing rod piston 29 works to push out the yarn wound around the V-shaped yarn winding piece 32 and let it fall freely.

[0066] In summary, the wire drawing machine capable of cutting the connection of yarn clusters and assisting in upper head replacement and its control method have the characteristics of compact structure, good running stability and high efficiency. It solves the problems of potential safety hazards in man-machine cross-operation and realizing automatic yarn taking and bobbin unloading by the manipulator. The automatic yarn cutting function of the wire drawing machine is realized, avoiding the high labor intensity and low work efficiency caused by frequent manual operations. The yarn passes through smoothly between the machine head and the V-shaped yarn winding piece without obstacles, and at the same time, the yarn angle and linear velocity remain unchanged, ensuring the stability of the wire drawing process.

[0067] The above are only specific embodiments of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A wire drawing machine capable of breaking the connecting line of yarn clusters and assisting in upper head replacement, including a driving main frame (4), characterized in that: On the end face of the described driving main frame (4), there is a spare head (1) and a working head (6). On the outer end of the working head (6), there is a transverse wire arranging frame (7). At the lower end of the transverse wire arranging frame (7), there is a slow drawing frame (8). Between the spare head (1) and the driving main frame (4), and between the working head (6) and the driving main frame (4), there is a bobbin changing turntable (10) which is fixedly connected to the driving main frame (4) in a movable nested manner. On the upper end of the bobbin changing turntable (10), there is an auxiliary upper head changing winding mechanism (3) which is movably press-connected to the outer end of the working head (6).

2. The wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement according to claim 1, characterized in that: The described auxiliary upper head changing winding mechanism (3) includes a moving bracket (19). Between the upper end of the moving bracket (19) and the driving main frame (4), there is a fixing bracket (13) which is movably inserted and connected to the moving bracket (19). At the lower end of the fixing bracket (13), there is a bearing seat II (25). At the front end of the bearing seat II (25), there is a lagging yarn pushing rod piston (29) which is fixedly connected to the bearing seat II (25) in a reset spring inserted manner. Between the rear end of the lagging yarn pushing rod piston (29) and the bearing seat II (25), there is an air ring (27). Around the lagging yarn pushing rod piston (29), there are several V-shaped yarn winding pieces (32). Between the V-shaped yarn winding pieces (32) and the bearing seat II (25), and the lagging yarn pushing rod piston (29), there is a V-shaped piece piston (28).

3. The wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement according to claim 2, characterized in that: Between the middle of the V-shaped piece piston (28) and the V-shaped yarn winding pieces (32), there is a connecting rod (31). The rear end of the V-shaped yarn winding pieces (32) is fixedly connected to the V-shaped piece piston (28) by a pin shaft. Between the rear end of the V-shaped piece piston (28) and the bearing seat II (25), there is a spring pressing piece (30). Between the spring pressing piece (30) and the V-shaped piece piston (28), there are several V-shaped piece opening springs (26) which are inserted and guided by a pin shaft.

4. The wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement according to claim 2, wherein: Inside the fixing bracket (13), there is a servo motor I (14). At the front end of the servo motor I (14), there is a ball screw (16). Between the ball screw (16) and the servo motor I (14), there is a bearing seat I (15). Between the fixing bracket (13) and the moving bracket (19), there is a linear guide rail (17). Between the ball screw (16) and the moving bracket (19), there is a pushing sleeve (18) which is threadedly sleeved on the ball screw (16).

5. The wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement according to claim 2, wherein: Between the V-shaped yarn winding pieces (32) and the fixing bracket (13), there is a servo motor II (20) which is fixedly connected to the moving bracket (19). On the end face of the servo motor II (20), there is a driving synchronous pulley (21) which is fixedly connected to the servo motor II (20) by a flat key for limit insertion. At the rear end of the bearing seat II (25), there is a driven synchronous pulley I (24) which is fixedly connected to the lagging yarn pushing rod piston (29) by a flat key for limit insertion. At the rear end of the driven synchronous pulley I (24), there is a locking nut (23) which is threadedly sleeved and fixed on the lagging yarn pushing rod piston (29). Between the driving synchronous pulley (21) and the driven synchronous pulley I (24), there is a synchronous belt I (22).

6. The wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement according to claim 3, characterized in that: Above the described spare machine head (1), there is a yarn breaking mechanism (2), and the yarn breaking mechanism (2) includes an abrasive breaking component or a cutting component.

7. The wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement according to claim 5, characterized in that: The abrasive breaking component includes a rotating shaft I (36). Above the rotating shaft I (36), there is a fixed shaft (34). At one side end of the rotating shaft I (36), there is a front sleeve (33) fixedly sleeved with the fixed shaft (34) and the rotating shaft I (36). At the other side end of the rotating shaft I (36), there is a rear seat (37) fixedly sleeved with the fixed shaft (34) and the rotating shaft I (36). At the side of the rear seat (37), there is a rotating shaft rotating cylinder I (38). Between the rotating shaft rotating cylinder I (38) and the rotating shaft I (36), there is a rotating shaft arm I (39). Between the rotating shaft arm I (39) and the rear seat (37), there is a support seat (40) sleeved with the rotating shaft I (36). On the rotating shaft I (36), there are several connecting rod pieces I (42). At the front end of the connecting rod piece I (42), there is a connecting rod piece II (44). Between the connecting rod piece II (44) and the connecting rod piece I (42), there is a connecting rod piece III (45). Between the front end of the connecting rod piece II (44) and the rear end of the connecting rod piece I (42), there is a pull rod II (46) located at the side of the connecting rod piece III (45). Between the front end of the connecting rod piece II (44) and the front end of the connecting rod piece I (42), there is a tension spring (43) located above the connecting rod piece III (45). Between the rear seat (37) and the front sleeve (33), there are several pull rod fixing seats (35). Between the front end of the pull rod fixing seat (35) and the middle part of the side wall of the rod piece I (42), there is a pull rod I (41).

8. The wire drawing machine capable of breaking the connection of yarn clusters and assisting in head replacement according to claim 5, wherein: The cutting component includes a rotating shaft II (49). At both ends of the rotating shaft II (49), there are rotating shaft seats (50) fixedly connected by bearing-type nesting with the rotating shaft II (49). Between the rotating shaft II (49) and the working machine head (6), there is a cutting tool (52). Between the cutting tool (52) and the rotating shaft II (49), there is a connecting rod (51) fixedly clamped to the rotating shaft II (49) by hoop-type clamping. At one side of the rotating shaft II (49), there is a rotating shaft longitudinal cylinder (54). Between the rotating shaft longitudinal cylinder (54) and the rotating shaft seat (50), there is a fixing plate (47). Between the rotating shaft longitudinal cylinder (54) and the fixing plate (47), there is a rotating shaft longitudinal cylinder seat (53) fixedly connected to the fixing plate (47) by screws. Between the rotating shaft longitudinal cylinder (54) and the fixing plate (47), there is a rotating shaft arm II (55) fixedly sleeved with the rotating shaft II (49). Between the rotating shaft arm II (55) and the upper part of the fixing plate (47), there is a rotating shaft rotating cylinder II (48) for driving the rotating shaft arm II (55) to operate.

9. The wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement according to claim 1, characterized in that: Between the spare machine head (1) and the working machine head (6), there is a partition frame (9). Between the lower end of the auxiliary upper head-changing winding mechanism (3) and the working machine head (6), there is a wire blocking frame (5). On the wire blocking frame (5), there are an upper wire blocking screw rod (11) and a lower wire blocking screw rod (12).

10. The control method of the wire drawing machine capable of breaking the connection of yarn clusters and assisting in upper head replacement according to claim 6, characterized in that It includes the following operating steps: Step 1: The auxiliary head-changing winding mechanism (3) is provided with a fixed frame (13). The fixed frame (13) is fixed above the working head (1) on the end face of the driving main frame (4), extending from the panel of the driving main frame (4) to the front end of the working head (1). The auxiliary head-changing winding mechanism (3) is supported by a moving bracket (19) corresponding to the front end of the working head (6). Step 2: Before operation, the auxiliary head-changing winding mechanism (3) is in a state of being opened without air pressure and is about 2 - 3 cm away from the front end of the working head (6) to allow the yarn to pass through. The slow drawing frame (8) starts to draw the yarn down, and the auxiliary head-changing winding mechanism (3) moves closer to the working head (6). Step 3: Insert the yarn and the winding bobbin, and insert the V-shaped yarn winding piece (32) about 2 cm into the winding bobbin to cover the surface. At this time, the auxiliary head-changing winding mechanism (3) rotates synchronously with the working head (6), and the yarn is wound on the V-shaped yarn winding piece (32). Step 4: The yarn guide frame (5) instantly retreats to the middle of the first winding bobbin, and then the yarn guide frame (5) is pushed out again, gets close to the V-shaped yarn winding piece (32), and then directly retreats to the bottom. Step 5: The auxiliary head-changing winding mechanism (3) leaves the winding bobbin, the compressed air is turned on, the V-shaped piece piston (28) works, so that the V-shaped yarn winding piece (32) contracts to a vertical state. Then the lag-type yarn pushing rod piston (29) works to push out the yarn wound on the V-shaped yarn winding piece (32) to fall freely. Step 6: When changing the full bobbin, the auxiliary head-changing winding mechanism (3) operates synchronously with the full bobbin head and moves towards the working head (6) to insert about 2 cm into the winding bobbin. The lower yarn guide rod (11) pushes the yarn into the groove of the V-shaped yarn winding piece (32). Step 7: The lower yarn guide rod (11) and the yarn move with the auxiliary head-changing winding mechanism (3), and slightly leave the end face of the head winding bobbin to maintain the linear velocity. The bobbin-changing turntable (10) is started to switch the spare head (1) to the position of the working head (6). At this time, the yarn-breaking mechanism (2) is used to break the yarn end of the full bobbin at the spare head (1). Step 8: The auxiliary head-changing winding mechanism (3) and the lower yarn guide rod (11) instantly move and insert onto the winding bobbin. Then the lower yarn guide rod (11) continues to quickly retreat to the middle of the first winding bobbin, is pushed out again, gets close to the V-shaped yarn winding piece (32) to press the head yarn, and then directly retreats to the bottom. At this time, the auxiliary head-changing winding mechanism (3) leaves the winding bobbin, the compressed air is turned on, the V-shaped piece piston (28) works, so that the V-shaped yarn winding piece (32) contracts to a vertical state. Then the lag-type yarn pushing rod piston (29) works to push out the yarn wound on the V-shaped yarn winding piece (32) to fall freely.

Images