A knotting device in a twisting machine
By designing an automatic knotting device in the crimping machine, using components such as lifting racks, knotting units and wire feeding pipes to achieve automatic knotting of yarns, solving the problems of low efficiency and unstable quality in traditional knotting, and the device structure is simple and easy to operate.
Patent Information
- Application Number
- CN202211104865.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-09
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2042-09-09
AI Technical Summary
In traditional shaving machines, the knotting efficiency is low and the quality is unstable, and the existing automatic knotting device has complex structure and is not simple enough.
A knotting device in a crimping machine is designed, including a lifting frame, a knotting unit, a wire feeding tube and a bird's beak knotting device. Through the lifting frame and the rotation of the wire feeding tube, the knotting and cutting of the yarn is realized, and the knotting and cutting are completed by using the stepper motor and transmission assembly to drive the dialing structure.
The automatic knotting of yarn is realized, the efficiency and quality of knotting are improved, and the device structure is relatively simple and easy to operate and maintain.
Smart Images

Figure CN115520730B_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of textile machinery and relates to a knotting device in a winding machine. Background Art
[0002] In recent years, with the continuous development and growth of the textile industry, the application of winding machines has become more and more extensive. Because winding machines are easy to operate and have high production efficiency, they can well reduce costs. After the winding machine winds the yarn, it is necessary to knot the yarn for the use of subsequent processes. The traditional method of manual knotting is adopted, and this manual method makes the knotting efficiency very low, and the quality of the knots is uneven. Therefore, there is an urgent need for a device that can automatically knot the yarn, has good knotting quality and a simple structure.
[0003] In order to overcome the deficiencies of the prior art, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a knotting device for an automatic winding machine [Application No.: 202011119762.5], which includes a knotting head, a thread hook, a loop removing push rod, a knot removing rocker, a thread deflecting rocker, scissors, an upper baffle and a lower baffle. The knotting head, the thread hook and the loop removing push rod cooperate with each other. The knotting head and the loop removing push rod are rotatably arranged relative to the thread hook, and at the same time, the knotting head and the thread hook are telescopically arranged relative to the loop removing push rod. The thread deflecting rocker, the scissors and the upper baffle are arranged above the knotting head, the thread hook and the loop removing push rod, and the knot removing rocker and the lower baffle are arranged below the knotting head, the thread hook and the loop removing push rod. The advantage of this invention is that it can realize automatic knotting of the yarn, but there are problems that the device structure is too complex and not simple enough. Summary of the Invention
[0004] The purpose of the present invention is to provide a knotting device in a winding machine for the above problems.
[0005] To achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A knotting device in a winding machine, the winding machine includes a frame, a winding roller for winding the yarn is arranged on the frame, a lifting frame and a lifting mechanism for driving the lifting frame to lift are further arranged on the frame, at least one group of knotting units is arranged on the lifting frame, and each knotting unit includes a wire clamp and a wire feeder located on both sides of the yarn respectively. The wire feeder includes a housing and a wire feeding tube hinged in the housing. A wire feeding driving structure for driving the wire feeding tube to swing and reset to the side of the corresponding wire clamp is further arranged in the housing. A beak knotter is further arranged below the frame, and a wire deflecting structure for deflecting the knotting wire to the beak knotter when the knotting wire is clamped between the wire clamp and the wire feeding tube is arranged on the frame.
[0007] In the present invention, after the winding roller of the winding machine finishes winding the yarn, the yarn feeding tube is in a vertical state by default and thus will not interfere with the yarn. Subsequently, the lifting mechanism drives the lifting frame to descend. At this time, the yarn feeding tube and the wire clamping device are located on both sides below the yarn. Then, the wire feeding drive structure drives the yarn feeding tube to rotate 90 degrees until the end of the yarn feeding tube is close to the wire clamping device. Since there is a thread end reserved at the end of the yarn feeding tube, the wire clamping device clamps the thread end at this time, completing the lateral threading of the thread end under the yarn. Then, the yarn feeding tube resets to a vertical state. Since the thread end is clamped by the wire clamping device, the knotted yarn is stretched, and the yarn feeding tube is vertical again and will not interfere with the yarn. At this time, the lifting frame ascends, and the knotted yarn comes above the yarn and both sides of the knotted yarn are located on both sides of the yarn respectively. Next, the wire deflecting structure acts to deflect the knotted yarn onto the beak knotter, and the beak knotter rotates one circle to complete knotting. Then, the wire deflecting structure continues to act to cut the knotted yarn, thus completing one step of the knotting process.
[0008] In the knotting device in the above-mentioned winding machine, the wire deflecting structure includes a knife rod, a hook knife arranged on the knife rod, and a wire deflecting drive structure for driving the knife rod to rotate. The hook knife is provided with a yarn hooking part and a blade edge, and the beak knotter is provided with a cutting edge for cooperating with the blade edge to cut the wire.
[0009] After the beak knotter finishes knotting the knotted yarn, the wire deflecting drive structure continues to act, and through the yarn hooking part on the hook knife, the knotted yarn is deflected to the cutting edge on the beak knotter, so that the blade edge on the hook knife and the cutting edge on the beak knotter cut the knotted yarn.
[0010] In the knotting device in the above-mentioned winding machine, the wire deflecting drive structure includes a stepping motor and a transmission component. The transmission component makes the output shaft of the stepping motor rotate synchronously with the knife rod. The stepping motor has at least two strokes, corresponding to the states of hooking the wire for knotting and cutting the wire respectively.
[0011] The stepping motor makes the output shaft of the stepping motor rotate synchronously with the knife rod through the transmission component. The two strokes of the stepping motor respectively correspond to the subsequent two actions of hooking the wire to the knotting position for knotting and hooking the wire to the cutting position for cutting the wire.
[0012] In the knotting device in the above-mentioned winding machine, an auxiliary hook for assisting in hooking the knotted yarn is further arranged at the lower part of the knife rod.
[0013] When the knotted yarn comes above the yarn and both sides of the knotted yarn are located on both sides of the yarn respectively, since there is a certain inclination angle of the knotted yarn at this time, the auxiliary hook located at the lower part of the knife rod is required to cooperate with the hook knife to deflect the knotted yarn onto the beak knotter.
[0014] In the knotting device in the above-mentioned winding machine, the wire clamping device is arranged in the housing of the adjacent wire feeder.
[0015] The thread clamping device shares a housing with the adjacent wire feeder, which can simplify the structure.
[0016] In the knotting device of the above-mentioned stranding machine, the thread clamping device includes a bracket fixedly connected to the housing and two clips hinged to the bracket. The ends of the clips are controlled to clamp and loosen by a thread clamping cylinder.
[0017] The thread clamping cylinder is responsible for controlling the clamping and loosening of the clips. When the end of the wire feeding tube approaches the thread clamping device, the clips clamp the end of the knotted yarn.
[0018] In the knotting device of the above-mentioned stranding machine, a buffer spring is provided between the hook knife and the knife rod.
[0019] When the hook knife and the auxiliary hook push the knotted yarn onto the beak knotter, a force that makes the hook knife move downward will be generated on the knotted yarn. Therefore, a buffer spring is needed to provide an upward force to ensure that the cutting edge on the hook knife and the cutting edge on the beak knotter always abut against each other, so as to ensure the shearing effect between the cutting edge and the cutting edge.
[0020] In the knotting device of the above-mentioned stranding machine, the wire feeding drive structure includes a gear disposed in the housing coaxially with the hinge shaft of the wire feeding tube, a rack disposed in the housing and meshing with the gear, and a wire feeding cylinder for driving the rack to move up and down is provided on the housing.
[0021] When the lifting frame descends and the wire feeding tube and the thread clamping device are on both sides below the yarn, the wire feeding cylinder operates to drive the rack to move downward, driving the gear to rotate and thus driving the wire feeding tube to rotate 90 degrees until the end of the wire feeding tube approaches the thread clamping device. When the wire feeding cylinder drives the rack to move upward, the wire feeding tube resets to the vertical state.
[0022] In the knotting device of the above-mentioned stranding machine, the lifting mechanism includes a lifting cylinder disposed on the frame, and a lifting frame is connected to the output shaft of the lifting cylinder.
[0023] The lifting cylinder drives the lifting frame to lift and lower.
[0024] In the knotting device of the above-mentioned stranding machine, a linear bearing is further provided on the lifting frame, a guide post for guiding the lifting frame in the vertical direction is provided on the frame, and the linear bearing is sleeved on the guide post.
[0025] The lifting cylinder drives the lifting frame to lift and lower through the linear bearing on the guide post.
[0026] Compared with the existing technology, the advantages of the present invention are as follows:
[0027] 1. After the winding roller of the winding machine finishes winding the yarn, the yarn feeding tube is in a vertical state by default and will not interfere with the yarn. Subsequently, the lifting mechanism drives the lifting frame to descend. At this time, the yarn feeding tube and the wire clamping device are located on both sides below the yarn. Then, the yarn feeding driving structure drives the yarn feeding tube to rotate 90 degrees until the end of the yarn feeding tube approaches the wire clamping device. Since there is a thread end reserved at the end of the yarn feeding tube, the wire clamping device clamps the thread end at this time, completing the lateral passing of the thread end under the yarn. Then, the yarn feeding tube returns to the vertical state. Since the thread end is clamped by the wire clamping device, the knotted yarn is stretched, and the yarn feeding tube is vertical again and will not interfere with the yarn. At this time, the lifting frame rises, and the knotted yarn comes above the yarn, and both sides of the knotted yarn are located on both sides of the yarn respectively. Next, the wire deflecting structure acts to deflect the knotted yarn onto the beak knotter, and the beak knotter rotates one circle to complete knotting. Then, the wire deflecting structure continues to act to cut the knotted yarn, thus completing one step of the knotting process.
[0028] 2. After the beak knotter finishes knotting the knotted yarn, the wire deflecting driving structure continues to act, and through the yarn deflecting part on the hook knife, the knotted yarn is deflected to the cutting edge of the beak knotter, so that the cutting edge on the hook knife and the cutting edge on the beak knotter cut the knotted yarn.
[0029] 3. The stepping motor enables the output shaft of the stepping motor and the tool bar to rotate synchronously through the transmission component. The two strokes of the stepping motor respectively correspond to the subsequent two actions of hooking the thread to the knotting position for knotting and hooking the thread to the cutting position for cutting.
[0030] 4. When the knotted yarn comes above the yarn and both sides of the knotted yarn are located on both sides of the yarn respectively, since there is a certain inclination angle of the knotted yarn at this time, it is necessary for the auxiliary hook located at the lower part of the tool bar to cooperate with the hook knife to deflect the knotted yarn onto the beak knotter.
[0031] Other advantages, objectives and features of the present invention will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present invention. Description of the Drawings
[0032] Figure 1 is a schematic structural diagram of the knotting device in the winding machine;
[0033] Figure 2 is a schematic structural diagram of the knotting device;
[0034] Figure 3 is a schematic structural diagram of a set of knotting units.
[0035] In the figure, there are a winding machine 1, a frame 2, a winding roller 3, a lifting frame 4, a lifting mechanism 5, a knotting unit 6, a thread clamp 7, a wire feeder 8, a housing 9, a driving wire tube 10, a wire feeding driving structure 11, a beak knotter 12, a wire deflecting structure 13, a cutter bar 14, a hook cutter 15, a wire deflecting driving structure 16, a yarn hooking part 17, a cutting edge 18, a thread cutting edge 19, a stepping motor 20, a transmission component 21, an auxiliary hook 22, a bracket 23, a clip 24, a buffer spring 25, a wire tube hinge shaft 26, a gear 27, and a rack 28. Detailed implementation manner
[0036] As Figures 1-3 shown, a knotting device in a winding machine, the winding machine 1 includes a frame 2, and a winding roller 3 for winding yarn is provided on the frame 2. A lifting frame 4 and a lifting mechanism 5 for driving the lifting frame 4 to lift are further provided on the frame 2. At least one group of knotting units 6 is provided on the lifting frame 4. The knotting unit 6 includes a thread clamp 7 and a wire feeder 8 respectively located on both sides of the yarn. The wire feeder 8 includes a housing 9 and a wire tube 10 hinged inside the housing 9. A wire feeding driving structure 11 for driving the wire tube 10 to swing towards the corresponding thread clamp 7 and reset is further provided inside the housing 9. A beak knotter 12 is further provided below the frame, and a wire deflecting structure 13 for deflecting the knotting thread to the beak knotter 12 when the knotting thread is clamped between the thread clamp 7 and the wire tube 10 is provided on the frame 2.
[0037] In the present invention, after the winding roller 3 of the winding machine 1 finishes winding the yarn, at this time, the wire tube 10 is in a default vertical state and thus does not interfere with the yarn. Subsequently, the lifting mechanism 5 drives the lifting frame 4 to descend. At this time, the wire tube 10 and the thread clamp 7 are located on both sides below the yarn. Then, the wire feeding driving structure 11 drives the wire tube 10 to rotate 90 degrees until the end of the wire tube 10 is close to the thread clamp 7. Since there is a thread end reserved at the end of the wire tube 10, the thread clamp 7 clamps the thread end at this time, and the thread end horizontally passes through below the yarn. Then, the wire tube 10 resets to a vertical state. Since the thread end is clamped by the thread clamp 7, the knotting yarn is stretched, and the wire tube 10 is vertical again and does not interfere with the yarn. At this time, the lifting frame 4 rises, and the knotting yarn comes above the yarn and both sides of the knotting yarn are respectively located on both sides of the yarn. Next, the wire deflecting structure 13 acts to deflect the knotting yarn to the beak knotter 12, and the beak knotter 12 rotates one circle to complete knotting. Then, the wire deflecting structure 13 continues to act to cut the knotting yarn, and thus one step of the knotting process is completed.
[0038] Specifically, in combination with Figure 2 and Figure 3As shown, the wire dialing structure 13 includes a tool bar 14, a hook knife 15 provided on the tool bar 14, and a wire dialing drive structure 16 for driving the tool bar 14 to rotate. A yarn hooking portion 17 and a cutting edge 18 are provided on the hook knife 15. A cutting edge 19 for cooperating with the cutting edge 18 to cut the thread is provided on the beak knotter 12. The wire dialing drive structure 16 includes a stepping motor 20 and a transmission component 21. The transmission component 21 enables the output shaft of the stepping motor 20 to rotate synchronously with the tool bar 14. The stepping motor 20 has at least two strokes, corresponding to the thread hooking and knotting state and the thread cutting state respectively.
[0039] After the beak knotter 12 finishes tying the knot of the knotted yarn, the wire dialing drive structure 16 continues to act. The knotted yarn is dialed to the cutting edge 19 on the beak knotter 12 through the yarn hooking portion 17 on the hook knife 15, so that the cutting edge 18 on the hook knife 15 and the cutting edge 19 on the beak knotter 12 cut the knotted yarn. The stepping motor 20 enables the output shaft of the stepping motor 20 to rotate synchronously with the tool bar 14 through the transmission component 21. The two strokes of the stepping motor 20 respectively correspond to the subsequent two actions of hooking the thread to the knotting position to tie a knot and hooking the thread to the thread cutting position to cut the thread.
[0040] Preferably, as shown in Figure 2 and Figure 3 shown, an auxiliary hook 22 for assisting in hooking the knotted yarn is further provided at the lower part of the tool bar 14, and a buffer spring 25 is provided between the hook knife 15 and the tool bar 14.
[0041] When the knotted yarn comes above the yarn and both sides of the knotted yarn are respectively located on both sides of the yarn, since there is a certain inclination angle of the knotted yarn at this time, the auxiliary hook 22 located at the lower part of the tool bar 14 is required to cooperate with the hook knife 15 to dial the knotted yarn to the beak knotter 12 together. When the hook knife 15 and the auxiliary hook 22 dial the knotted yarn to the beak knotter, a force that makes the hook knife 15 move downward will be generated on the knotted yarn. Therefore, it is necessary for the buffer spring 25 to provide an upward force to ensure that the cutting edge 18 on the hook knife 15 and the cutting edge 19 on the beak knotter 12 always abut against each other, so as to ensure the shearing effect between the cutting edge 18 and the cutting edge 19.
[0042] Specifically, as shown in Figure 2 and Figure 3 shown, the wire clamp 7 is arranged in the shell of the adjacent wire feeder 8. The wire clamp 7 includes a bracket 23 fixedly connected to the shell 9 and two clips 24 hinged to the bracket 23. The ends of the clips 24 are controlled to be clamped and loosened by a wire clamping cylinder.
[0043] The wire clamp 7 shares the shell 9 with the adjacent wire feeder 8, which can simplify the structure. The wire clamping cylinder is responsible for controlling the clamping and loosening of the clip 24. When the end of the wire delivery tube 10 approaches the wire clamp 7, the clip 24 clamps the end of the knotted yarn.
[0044] Specifically, as shown inFigure 2 and Figure 3 As shown in Figure 3 , the wire feeding drive structure 11 includes a gear 27 disposed in the housing 9 and coaxial with the hinge shaft 26 of the wire feeding tube, and a rack 28 disposed in the housing 9 and meshing with the gear 27. A wire feeding cylinder for driving the rack 28 to move up and down is provided on the housing 9.
[0045] When the lifting frame descends and the wire feeding tube 10 and the wire clamping device 7 are located on both sides below the yarn, the wire feeding cylinder operates to drive the rack 28 to move downward, driving the gear 27 to rotate, thereby driving the wire feeding tube 10 to rotate 90 degrees until the end of the wire feeding tube 10 approaches the wire clamping device 7. When the wire feeding cylinder drives the rack 28 to move upward, the wire feeding tube 10 resets to the vertical state.
[0046] Specifically, as shown in combination with Figure 1 and Figure 2 , the lifting mechanism 5 includes a lifting cylinder 29 disposed on the frame 2. The output shaft of the lifting cylinder 29 is connected with a lifting frame 4. A linear bearing 30 is further provided on the lifting frame 4. Guide posts 31 for guiding the lifting frame 4 in the vertical direction are provided on the frame 2. The linear bearing 30 is sleeved on the guide posts 31.
[0047] The lifting cylinder drives the lifting frame to move up and down on the guide posts through the linear bearing.
[0048] The working principle of the present invention is as follows: When the winding roller 3 of the winding machine 1 finishes winding the yarn, at this time, the wire feeding tube 10 is in the default vertical state and thus will not interfere with the yarn. Subsequently, the lifting mechanism 5 drives the lifting frame 4 to descend. At this time, the wire feeding tube 10 and the wire clamping device 7 are located on both sides below the yarn. Then, the wire feeding drive structure 11 drives the wire feeding tube 10 to rotate 90 degrees until the end of the wire feeding tube 10 approaches the wire clamping device 7. Since there is a wire end reserved at the end of the wire feeding tube 10, at this time, the wire clamping device 7 clamps the wire end, completing the lateral passing of the wire end through the lower part of the yarn. Then, the wire feeding tube 10 resets to the vertical state. Since the wire end is clamped by the wire clamping device 7, the knotted yarn is stretched, and the wire feeding tube 10 is vertical again and will not interfere with the yarn. At this time, the lifting frame 4 rises, and the knotted yarn comes above the yarn and both sides of the knotted yarn are located on both sides of the yarn respectively. Next, the wire deflecting structure 13 operates to deflect the knotted yarn onto the beak knotting device 12, and the beak knotting device 12 rotates one circle to complete knotting. Then, the wire deflecting structure 13 continues to operate to cut the knotted yarn, thus completing one step of the knotting process.
[0049] When the beak knotting device 12 finishes knotting the knotted yarn, the wire deflecting drive structure 16 continues to operate, and through the yarn deflecting part 17 on the hook knife 15, the knotted yarn is deflected to the cutting edge 19 of the beak knotting device 12, so that the cutting edge 18 on the hook knife 15 and the cutting edge 19 of the beak knotting device 12 cut the knotted yarn.
[0050] The stepping motor 20 enables the output shaft of the stepping motor 20 and the tool bar 14 to rotate synchronously through the transmission assembly 21. The two strokes of the stepping motor 20 respectively correspond to the subsequent two actions of hooking the thread to the knotting position for knotting and hooking the thread to the thread cutting position for cutting the thread;
[0051] When the knotting yarn comes above the yarn and both sides of the knotting yarn are located on both sides of the yarn respectively, since there is a certain inclination angle of the knotting yarn at this time, the auxiliary hook 22 located at the lower part of the tool bar 14 needs to cooperate with the hook knife 15 to flick the knotting yarn onto the beak knotter 12;
[0052] The thread clamp 7 and the adjacent thread feeder 8 share the housing 9, which can simplify the structure; the thread clamp cylinder is responsible for controlling the clamping and loosening of the clip 24. When the end of the thread delivery tube 10 approaches the thread clamp 7, the clip 24 clamps the end of the knotting yarn;
[0053] When the hook knife 15 and the auxiliary hook 22 flick the knotting yarn onto the beak knotter, a force that makes the hook knife 15 move downward will be generated on the knotting yarn. Therefore, a buffer spring 25 is required to provide an upward force to ensure that the cutting edge 18 on the hook knife 15 and the thread cutting edge 19 on the beak knotter 12 always abut against each other, so as to ensure the cutting effect between the cutting edge 18 and the thread cutting edge 19;
[0054] When the lifting frame descends and the thread delivery tube 10 and the thread clamp 7 are located on both sides below the yarn, the thread feeding cylinder operates to drive the rack 28 to move downward, driving the gear 27 to rotate, thereby driving the thread delivery tube 10 to rotate 90 degrees until the end of the thread delivery tube 10 approaches the thread clamp 7. When the thread feeding cylinder drives the rack 28 to move upward, the thread delivery tube 10 resets to the vertical state; the lifting cylinder drives the lifting frame to lift and lower on the guide post through the linear bearing.
[0055] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
[0056] Although terms such as reeling machine 1, frame 2, reeling roller 3, lifting frame 4, lifting mechanism 5, knotting unit 6, thread clamp 7, thread feeder 8, housing 9, driving thread delivery tube 10, thread feeding drive structure 11, beak knotter 12, thread flicking structure 13, tool bar 14, hook knife 15, thread flicking drive structure 16, thread hooking part 17, cutting edge 18, thread cutting edge 19, stepping motor 20, transmission assembly 21, auxiliary hook 22, bracket 23, clip 24, buffer spring 25, thread delivery tube hinge shaft 26, gear 27, rack 28, etc. are used more in this article, using these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.
Claims
1. A knotting device in a twisting machine, the twisting machine (1) comprising a frame (2), the frame (2) being provided with a twisting roller (3) for twisting the yarn, characterized in that: The frame (2) is also provided with a lifting frame (4) and a lifting mechanism (5) for driving the lifting frame (4) to lift and lower. The lifting frame (4) is provided with at least one group of knotting units (6). The knotting unit (6) comprises a wire clamp (7) and a wire feeder (8) respectively located on both sides of the yarn. The wire feeder (8) comprises a shell (9) and a wire feeding tube (10) hinged in the shell (9). The shell (9) is also provided with a wire feeding drive structure (11) for driving the wire feeding tube (10) to swing and reset to the side of the corresponding wire clamp (7). A bird's beak knotter (12) is also provided under the frame. The frame (2) is provided with a wire shifting structure (13) for shifting the knotted wire to the bird's beak knotter (12) when a knotted wire is clamped between the wire clamp (7) and the wire feeding tube (10).
2. The knotting device in the winch according to claim 1, characterized in that: The thread-pulling structure (13) comprises a knife bar (14), a hook knife (15) arranged on the knife bar (14) and a thread-pulling driving structure (16) for driving the knife bar (14) to rotate; the hook knife (15) is provided with a yarn-pulling portion (17) and a cutting edge (18); and the bird's beak knotter (12) is provided with a thread-cutting blade (19) for cooperating with the cutting edge (18) to cut the thread.
3. The knotting device in the winch according to claim 2, characterized in that: The wire-driving drive structure (16) comprises a stepper motor (20) and a transmission assembly (21). The transmission assembly (21) enables the output shaft of the stepper motor (20) to rotate synchronously with the knife rod (14). The stepper motor (20) has at least two strokes, corresponding to a wire-hooking and knotting state and a wire-cutting state, respectively.
4. The knotting device in the winch according to claim 2, characterized in that: The lower part of the knife rod (14) is also provided with an auxiliary hook (22) for knotting the yarn.
5. The knotting device in the winch according to claim 1, characterized in that: The wire clamp (7) is arranged in the housing of the adjacent wire feeder (8).
6. The knotting device in the winch according to claim 1, characterized in that: The wire clamp (7) comprises a bracket (23) fixedly connected to a housing (9) and two clamps (24) hinged to the bracket (23). The ends of the clamps (24) are controlled to be clamped and released by a wire clamping cylinder.
7. The knotting device in the winch according to claim 2, characterized in that: A buffer spring (25) is provided between the hook knife (15) and the knife rod (14).
8. The knotting device in the winch according to claim 1, characterized in that: The wire feeding drive structure (11) comprises a gear (27) arranged in the housing (9) and coaxial with the wire feeding tube hinge shaft (26), a rack (28) arranged in the housing (9) and meshing with the gear (27), and a wire feeding cylinder for driving the rack (28) to move up and down is provided on the housing (9).
9. The knotting device in the winch according to claim 1, characterized in that: The lifting mechanism (5) comprises a lifting cylinder (29) arranged on the frame (2), and the output shaft of the lifting cylinder (29) is connected to the lifting frame (4).
10. The knotting device in the winch according to claim 9, characterized in that: The lifting frame (4) is also provided with a linear bearing (30), and the frame (2) is provided with a guide column (31) for guiding the lifting frame (4) in a vertical direction, and the linear bearing (30) is sleeved on the guide column (31).
Citation Information
Patent Citations
A knotting device for automatic twisting machine
CN114162677B
Automatic weaving and twisting machine
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Automatic thread bundle knotter
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