Flexible wire double-end knotting device

Abstract

The invention relates to the technical field of wire machining equipment, and particularly discloses a flexible wire double-end knotting device which comprises a workbench, a knotting mechanism is fixedly arranged in the center of the interior of the workbench, the knotting mechanism comprises a U-shaped syn-position groove, and a center fixing block is fixedly arranged in the center of the syn-position groove; two fixing cavities are fixedly formed in the side, away from the syn-position groove, of the center fixing block, sliding screw rods are transversely and fixedly arranged in the two fixing cavities correspondingly, sliding tables are slidably arranged on the outer surfaces of the sliding screw rods, and jacking limiting columns are fixedly arranged on one sides of the sliding tables; the end, away from the sliding table, of the jacking limiting column is fixedly arranged on the inner wall of one side of the fixing cavity, a fixed knot frame is further fixedly arranged above the sliding table, through the integrated symmetrical knotting mechanisms, the double-end synchronous knotting operation of the flexible wire can be achieved, and the industrial problems that traditional equipment can only conduct single-end knotting, and manual secondary reknotting is needed are thoroughly solved.

Description

Technical Field

[0001] This invention relates to the field of wire processing equipment, and more particularly to a double-ended knotting device for flexible wires. Background Technology

[0002] In many industries, such as textiles, packaging, and jewelry making, it is often necessary to knot flexible wires.

[0003] Traditional knotting methods rely heavily on manual operation, which is not only inefficient but also results in inconsistent knot quality, making it difficult to meet the needs of large-scale production. Although some automatic knotting equipment exists on the market, most can only knot one end. For flexible wires that require double-ended knotting, the operation cannot be completed in one go and still requires manual secondary operation, which greatly increases production and time costs. In the production process of hair bun nets, the raw material is a flexible wire with elastic ropes on both sides and a woven mesh filling in the middle. The processing plant needs to cut it to the appropriate length and then knot both ends. Manual operation is not only expensive but also makes it difficult to guarantee product quality.

[0004] Therefore, developing a device that can automatically and efficiently knot flexible wires at both ends is of great practical significance. Summary of the Invention

[0005] The purpose of this invention is to provide a flexible wire double-head knotting device, which aims to solve the technical problems in the prior art.

[0006] To achieve the above objectives, the present invention employs a flexible wire double-head knotting device, comprising a workbench, a knotting mechanism fixedly disposed at the center of the workbench, an auxiliary material receiving mechanism fixedly disposed at the lower end of the workbench, and a material feeding sequence mechanism fixedly disposed at the upper end of the workbench; the knotting mechanism includes a U-shaped sequence groove, a central fixing block fixedly disposed at the center of the sequence groove, two fixing cavities fixedly disposed on the side of the central fixing block away from the sequence groove, sliding screws being horizontally fixedly disposed inside the two fixing cavities respectively, a sliding platform being slidably disposed on the outer surface of the sliding screws, a lifting limiting post being fixedly disposed on one side of the sliding platform, and the end of the lifting limiting post away from the sliding platform being fixedly disposed on the inner wall of one side of the fixing cavity, and a knot fixing frame being fixedly disposed above the sliding platform.

[0007] A movable cavity is fixedly provided on the side away from the central fixed block between the two fixed cavities. A movable screw is fixedly provided laterally inside the movable cavity, and several movable frames are slidably provided on the outer surface of the movable screw.

[0008] The movable frame is rotatably equipped with a rotating roller at one end near the central fixed block, and a mechanical gripper is fixedly installed on the outer surface of the rotating roller away from the movable frame.

[0009] The workbench includes a base, the bottom surface of which is fixedly provided with friction texture, and several support columns are fixedly provided on the upper outer side of the base. A knotting table is fixedly provided above the support columns, and the knotting mechanism is fixedly provided above the knotting table.

[0010] The knotting table has several support frames fixedly installed on its outer side, and a guide platform is fixedly installed above the support frames. The feeding sequence mechanism is also installed above the guide platform.

[0011] The auxiliary receiving platform includes a fixed base, which is fixedly disposed on one side above the base, and a lifting column is fixedly disposed at the center of the upper end of the fixed base.

[0012] The upper end of the lifting column is fixedly provided with a placement platform, and the placement platform passes through the knotting platform and is located between the two fixed cavities. The upper end of the placement platform is fixedly provided with a storage cavity.

[0013] The feeding sequence mechanism includes a sliding cavity, which is fixedly disposed at the upper center of the inside of the guide platform. A sliding seat is slidably disposed inside the sliding cavity, and a longitudinal lifting rod is fixedly disposed on one side of the sliding seat. The end of the longitudinal lifting rod away from the sliding seat is fixedly disposed on the inner wall of one side of the sliding cavity.

[0014] The upper two sides of the sliding seat are respectively fixed with material guide extension rods.

[0015] The feeding sequence mechanism further includes a passage cavity, which is U-shaped and has the same shape as the sequence groove. The passage cavity is located on one side of the guide platform and also on one side of the sliding cavity. A limit telescopic plate is fixedly installed on the inner side of the passage cavity away from the sliding cavity. The limit telescopic plate is U-shaped.

[0016] Beneficial effects: 1. This invention provides a flexible wire double-head knotting device. Through an integrated symmetrical knotting mechanism, it enables simultaneous double-head knotting of flexible wires, completely solving the industry pain point that traditional equipment can only knot one head and requires manual re-knotting. In the knotting mechanism, two fixed cavities are symmetrically distributed on both sides of a central fixed block. Inside, sliding screws drive the sliding table to precisely displace, and with the stable support of the lifting limit column, the fixed knotting frame synchronously positions both ends of the wire. Simultaneously, the moving screw of the moving cavity drives the moving frame to move, and the rotating roller, in conjunction with the mechanical gripper, synchronously grasps both ends of the wire and completes the knotting action. Compared to the traditional single-head equipment that requires two separate operations, this device can complete double-head knotting in one go, eliminating the need for manual re-operation. Taking the production of hairnets as an example, it can shorten the knotting time of a single wire and reduce the manual input for repetitive operations, significantly reducing time and labor costs in large-scale production scenarios and meeting the high-efficiency requirements of mass production.

[0017] 2. This invention provides a flexible wire double-head knotting device. The feeding sequence mechanism enables automated alignment and precise positioning of the wire during the feeding stage, effectively solving the problem of inconsistent knotting quality caused by manual feeding. The longitudinal lifting rod inside the sliding cavity drives the sliding seat to move flexibly, and the guide extension rod at its upper end provides initial guidance for the flexible wire, preventing deviation and bending during feeding. The U-shaped passage cavity is adapted to the alignment groove of the knotting mechanism, accurately conveying the wire to the knotting station. Furthermore, the U-shaped limiting telescopic plate inside the passage cavity provides omnidirectional positioning of the wire, ensuring uniform posture when the wire enters the knotting mechanism. This automated feeding sequence design eliminates the random errors of manual feeding, maintaining a high degree of consistency in the knotting position and tightness of each wire. Practical application verification shows that it can increase the product knotting pass rate from 75% with manual operation to over 98%, making it particularly suitable for industries with high knotting precision requirements, such as jewelry and textiles.

[0018] 3. This invention provides a flexible wire double-head knotting device with an auxiliary receiving mechanism, breaking away from the traditional discrete process of "knotting - manual receiving" in knotting equipment. It achieves a fully automated closed-loop process from feeding, knotting to receiving. The lifting column of the auxiliary receiving mechanism can drive the placement platform to rise and fall flexibly. Its upper receiving cavity can precisely align with the knotting station between two fixed cavities. After the wire is double-headed, it can fall directly into the receiving cavity without manual pickup. Simultaneously, the placement platform can pass through the knotting platform to complete the station adaptation, without interfering with the normal operation of the knotting mechanism, and achieving orderly storage of finished products. This design not only eliminates the intermediate step of manual receiving and shortens the process connection time, but also avoids wire wear and loosening of knots caused by manual contact with finished products. Calculations show that it can reduce the finished product loss rate from 8% in the traditional model to below 1%, improving the overall economic efficiency and continuity of production. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a flexible wire double-head knotting device according to the present invention.

[0021] Figure 2 This is a side view of a flexible wire double-head knotting device according to the present invention.

[0022] Figure 3 This is the present invention. Figure 2 A cross-sectional view of the AA line structure.

[0023] Figure 4 This is the present invention. Figure 3 Enlarged view of the local structure at point B.

[0024] 1-Workbench, 101-Base, 102-Support Column, 103-Knotting Table, 104-Support Frame, 105-Guide Table, 106-Friction Texture, 2-Knotting Mechanism, 201-Center Fixed Block, 202-Sequencing Groove, 203-Fixed Cavity, 204-Sliding Screw, 205-Sliding Table, 206-Fixed Knot Frame, 207-Lifting Limiting Column, 208-Moving Cavity, 209-Moving Screw, 210-Moving Frame, 211-Rotating Roller, 212-Mechanical Gripper, 3-Feeding Sequencing Mechanism, 301-Sliding Cavity, 302-Sliding Seat, 303-Longitudinal Lifting Rod, 304-Guide Extension Rod, 305-Limiting Telescopic Plate, 306-Passage Cavity, 4-Auxiliary Receiving Platform, 401-Fixed Seat, 402-Lifting Column, 403-Placement Table, 404-Receiving Cavity. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this application. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] like Figures 1-4 As shown, this invention provides a flexible wire double-head knotting device, which is mainly used in the processing of flexible wires in the fields of textiles, packaging, and jewelry making. It is especially suitable for the double-head synchronous knotting operation of composite flexible wires (with elastic ropes on both sides and a woven mesh in the middle) for hair bun netting raw materials. It can effectively solve the industry pain points of low efficiency and poor quality of traditional manual knotting, as well as the fact that existing equipment can only knot one head and requires secondary operation, and realize the fully automated closed loop from feeding, knotting to receiving.

[0030] like Figure 1 , Figure 2 As shown, the supporting foundation of the device is a workbench 1, the bottom of which is a base 101. The bottom surface of the base 101 is machined with evenly distributed friction textures 106, which can increase the contact friction with the ground and prevent the device from slipping or shaking during high-speed operation, thus ensuring the overall operational stability of the equipment. Four support columns 102 are fixed in a rectangular array on the upper outer side of the base 101. A knotting table 103 is welded to the top of each support column 102. The knotting mechanism 2 is installed in the center area of ​​the upper surface of the knotting table 103, providing a core operating position for double-headed knotting operations. To achieve precise wire feeding guidance, several support frames 104 are also welded to the outer side of the knotting table 103. A guide table 105 is spliced ​​and fixed to the top of each support frame 104. The feeding sequence mechanism 3 is integrated inside and on the upper surface of the guide table 105, forming a "guide table-knotting table" workstation connection.

[0031] like Figure 1 ,Figure 2 As shown, the feeding sequence mechanism 3 is a key structure that ensures uniform feeding posture of wire and improves the pass rate of bonding. It mainly consists of a sliding cavity 301, a sliding seat 302, a longitudinal lifting rod 303, a guide extension rod 304, a limiting telescopic plate 305, and a passage cavity 306.

[0032] A sliding cavity 301 is located at the center of the upper part of the guide table 105. A sliding seat 302 is slidably mounted inside the cavity. One side wall of the sliding seat 302 is fixedly connected to the output end of the longitudinal lifting rod 303, and the fixed end of the longitudinal lifting rod 303 is welded to the inner wall of one side of the sliding cavity 301. When the flexible wire to be processed is conveyed to the top of the guide table 105, the longitudinal lifting rod 303 can drive the sliding seat 302 to move back and forth along the sliding cavity 301 to adapt to the feeding requirements of wires of different lengths. At the same time, the guide extension rods 304 on both sides of the upper end of the sliding seat 302 can initially lift and guide the wire to avoid bending or deviation during the feeding process. A U-shaped passage cavity 306 is also provided on one side of the guide table 105. Its shape is perfectly matched with the alignment groove 202 of the knotting mechanism 2, which can realize the precise transition of the wire from the feeding station to the knotting station. A U-shaped limiting telescopic plate 305 is installed on the inner wall of the passage cavity 306 away from the sliding cavity 301. When the wire enters the passage cavity 306, the limiting telescopic plate 305 can automatically expand and contract according to the wire diameter to form an all-round wrapping limit on the wire, ensuring the uniform posture of the wire when entering the alignment groove 202 and eliminating the random error of manual feeding.

[0033] like Figure 1 , Figure 3 and Figure 4 As shown, the knotting mechanism 2 is the core functional module of the device. It adopts a symmetrical structural design and can simultaneously knot both ends of the wire. It mainly consists of a aligning groove 202, a central fixing block 201, a fixing cavity 203, a sliding screw 204, a sliding table 205, a fixed knot frame 206, a lifting limit post 207, a moving cavity 208, a moving screw 209, a moving frame 210, a rotating roller 211, and a mechanical gripper 212.

[0034] The alignment groove 202 at the center of the upper end face of the knotting table 103 is a U-shaped groove that seamlessly connects with the output end of the passage cavity 306. After the wire is conveyed through the passage cavity 306, it can naturally embed into the alignment groove 202. A central fixing block 201 is welded to the center of the alignment groove 202. Two fixing cavities 203 are symmetrically fixed on the side away from the alignment groove 202, corresponding to the knotting positions at both ends of the wire. A sliding screw 204 is horizontally installed inside each fixing cavity 203. A sliding table 205 is threaded onto the outer surface of the sliding screw 204. One side of the sliding table 205 is also fixed to the output end of the lifting limit post 207. The fixed end of the lifting limit post 207 is fixed to the inner wall of the fixing cavity 203. When both ends of the wire extend into the inner side of the fixed cavity 203, the sliding screw 204 can drive the sliding table 205 to move in the horizontal direction, and the lifting limit post 207 simultaneously adjusts the vertical height of the sliding table 205, ultimately driving the fixed knot frame 206 above the sliding table 205 to accurately position both ends of the wire, ensuring the consistency of the knot position.

[0035] A movable cavity 208 is also provided on the side away from the central fixed block 201 between the two fixed cavities 203. A movable screw 209 is installed laterally inside the movable cavity 208, and two movable frames 210 are symmetrically sleeved on the outer surface of the movable screw 209. A rotating roller 211 is rotatably connected to the end of the movable frame 210 near the central fixed block 201 via a rotating shaft, and a mechanical gripper 212 is fixed to the outer wall of the rotating roller 211.

[0036] After the fixed knot frame 206 completes the wire positioning, the moving screw 209 drives the two moving frames 210 to move towards both ends of the wire simultaneously, and the mechanical gripper 212 can accurately grasp the end of the wire; then the rotating roller 211 drives the mechanical gripper 212 to rotate, and completes the knot weaving according to the preset knotting trajectory. At the same time, the fixed knot frame 206 cooperates to complete the tightening and shaping of the knot, realizing the synchronous knotting of both ends of the wire.

[0037] Taking the processing of flexible wire in a hairnet as an example, during use, the wire to be processed is conveyed to the top of the guide table 105. The longitudinal lifting rod 303 drives the sliding seat 302 to move, and the guide extension rod 304 completes the initial guidance. When the wire passes through the passage cavity 306, the limiting telescopic plate 305 limits it and conveys it to the alignment groove 202. The sliding screw 204 and the lifting limiting column 207 work together to adjust the position of the sliding table 205. The fixed knot frame 206 completes the precise positioning of both ends of the wire. The moving screw 209 drives the moving frame 210 to move closer. The mechanical gripper 212 grabs the end of the wire. The rotating roller 211 drives the gripper to rotate to complete the double-head synchronous knotting. The fixed knot frame 206 cooperates to fix the shape. After the workpiece is released, it falls into the storage cavity 404. The placement table 403 is reset under the drive of the lifting column 402, waiting for the processing of the next batch of wire.

[0038] In summary, the flexible wire double-head knotting device of the present invention solves the technical pain points of traditional equipment and greatly improves production efficiency and product quality through the synchronous operation of the symmetrical knotting mechanism, the precise limiting of the automated feeding sequence, and the closed-loop design of the entire material collection process. It can be widely adapted to the double-head knotting needs of different types of flexible wires.

[0039] The above are merely embodiments of the present invention. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The scope of protection in this application does not involve improvements to the software and methods. Commonly known structures and characteristics in the solutions are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all prior art in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A flexible wire double-head knotting device, characterized in that, Includes a workbench (1), a knotting mechanism (2) is fixedly installed in the center of the workbench (1), an auxiliary material receiving mechanism (4) is fixedly installed at the lower end of the workbench (1), and a feeding sequence mechanism (3) is fixedly installed at the upper end of the workbench (1). The knotting mechanism (2) includes a U-shaped alignment groove (202). A central fixing block (201) is fixedly provided at the center of the alignment groove (202). Two fixing cavities (203) are fixedly provided on the side of the central fixing block (201) away from the alignment groove (202). Sliding screws (204) are respectively fixedly provided horizontally inside the two fixing cavities (203). A sliding platform (205) is slidably provided on the outer surface of the sliding screw (204). A lifting limit post (207) is fixedly provided on one side of the sliding platform (205). The end of the lifting limit post (207) away from the sliding platform (205) is fixedly provided on the inner wall of one side of the fixing cavity (203). A knot fixing frame (206) is also fixedly provided above the sliding platform (205).

2. The flexible wire double-head knotting device as described in claim 1, characterized in that, A movable cavity (208) is fixedly provided on the side away from the central fixed block (201) between the two fixed cavities (203). A movable screw (209) is fixedly provided laterally inside the movable cavity (208). Several movable frames (210) are slidably provided on the outer surface of the movable screw (209).

3. The flexible wire double-ended knotting device as described in claim 2, characterized in that, The movable frame (210) has a rotating roller (211) rotatably mounted on one end near the central fixed block (201), and a mechanical gripper (212) is fixedly mounted on the outer surface of the rotating roller (211) away from the movable frame (210).

4. The flexible wire double-ended knotting device as described in claim 1, characterized in that, The workbench (1) includes a base (101), the bottom surface of the base (101) is fixedly provided with friction texture (106), a number of support columns (102) are fixedly provided on the upper outer side of the base (101), a knotting table (103) is fixedly provided on the upper side of the support columns (102), and the knotting mechanism (2) is fixedly provided on the upper side of the knotting table (103).

5. The flexible wire double-ended knotting device as described in claim 4, characterized in that, A number of support frames (104) are fixedly installed on the outside of the knotting table (103), and a guide table (105) is fixedly installed above the support frame (104), and the feeding sequence mechanism (3) is also installed above the guide table (105).

6. The flexible wire double-ended knotting device as described in claim 4, characterized in that, The auxiliary receiving platform (4) includes a fixed base (401), which is fixedly disposed on one side above the base (101), and a lifting column (402) is fixedly disposed at the center of the upper end of the fixed base (401).

7. The flexible wire double-ended knotting device as described in claim 6, characterized in that, The upper end of the lifting column (402) is fixedly provided with a mounting platform (403), and the mounting platform (403) passes through the knotting platform (103) and is located between the two fixed cavities (203). The upper end of the mounting platform (403) is fixedly provided with a storage cavity (404).

8. The flexible wire double-ended knotting device as described in claim 5, characterized in that, The feeding sequence mechanism (3) includes a sliding cavity (301), which is fixedly disposed at the upper center of the inside of the guide table (105). A sliding seat (302) is slidably disposed inside the sliding cavity (301). A longitudinal lifting rod (303) is fixedly disposed on one side of the sliding seat (302). One end of the longitudinal lifting rod (303) away from the sliding seat (302) is fixedly disposed on the inner wall of one side of the sliding cavity (301).

9. The flexible wire double-ended knotting device as described in claim 8, characterized in that, The upper ends of the sliding seat (302) are respectively fixed with material guide extension rods (304).

10. The flexible wire double-head knotting device as described in claim 8, characterized in that, The feeding sequence mechanism (3) further includes a passage cavity (306), which is U-shaped and has the same shape as the sequence groove (202). The passage cavity (306) is located on one side inside the guide platform (105) and is also located on one side of the sliding cavity (301). A limiting telescopic plate (305) is fixedly provided on the side of the passage cavity (306) away from the sliding cavity (301). The limiting telescopic plate (305) is U-shaped.

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