A servo-oscillating thread guiding and hemming device and method

Abstract

The application discloses a kind of servo type swing yarn leading and overlock device and method, device includes servo type yarn leading platform, swing yarn leading mechanism, tension compensation yarn supply mechanism and continuous overlock mechanism, the swing yarn leading mechanism and tension compensation yarn supply mechanism are installed on the servo type yarn leading platform, follow the current opening movement of servo type yarn leading platform with fabric;Continuous overlock mechanism and servo type yarn leading platform are respectively opposite to be arranged in the both sides of fabric, follow the yarn leading position along the width direction movement of fabric.The yarn leading platform can follow the current opening movement of fabric, the swing yarn leading mechanism is introduced from the long and narrow optimal opening position, and continuous overlock is completed via the continuous overlock mechanism, the whole process is yarned by the tension compensation yarn supply mechanism and controls yarn tension constant.The application solves the forming problem of the yarn leading, overlock of the large width, large thickness, high density of fabric, improves the production efficiency of fabric and the consistency of forming.

Description

Technical Field

[0001] This invention relates to textile machinery technology, and in particular to a follow-up oscillating yarn feeding and sewing device and method. Background Technology

[0002] With the increasing market demand for three-dimensional fabrics, the forming process of three-dimensional fabrics is also constantly developing, accompanied by the need for three-dimensional fabric forming equipment to move towards mechanization and automation. Yarn feeding and edge locking, as crucial parts of the three-dimensional fabric forming process, are particularly important for automation. Traditional forming methods involve guiding the yarn into a narrow, diamond-shaped channel and using edge needles to form a discontinuous edge locking method. This approach results in low production efficiency and poor fabric consistency when processing wide, thick, and high-density three-dimensional fabrics. Summary of the Invention

[0003] The purpose of this invention is to provide a follow-up oscillating yarn feeding and locking device and method.

[0004] The technical solution to achieve the purpose of this invention is: a follow-up oscillating yarn feeding and sewing device, comprising a follow-up yarn feeding platform, an oscillating yarn feeding mechanism, a tension-compensating yarn supply mechanism, and a continuous sewing mechanism, wherein:

[0005] The oscillating yarn feeding mechanism and the tension compensation yarn supply mechanism are installed on the follower yarn feeding platform and follow the current opening movement of the fabric following the follower yarn feeding platform;

[0006] The continuous overlocking mechanism and the follower yarn feeding platform are respectively placed opposite each other on both sides of the fabric and move along the width direction of the fabric following the yarn feeding position.

[0007] The oscillating yarn feeding mechanism introduces the yarn from the opening position and completes continuous edge locking via the continuous edge locking mechanism; the tension compensation yarn supply mechanism supplies yarn and controls the yarn tension to be constant.

[0008] Furthermore, the follow-up yarn feeding platform includes a forward platform, a lateral follow-up platform, a forward drive, a forward guide mechanism, a lateral drive, and a lateral guide mechanism; the lateral follow-up platform is mounted on the forward platform, powered by the lateral drive to reciprocate laterally, and guided by the lateral guide mechanism; the forward platform is powered by the forward drive to reciprocate forward, and guided by the forward guide mechanism.

[0009] Furthermore, the forward guiding mechanism and the lateral guiding mechanism adopt linear guide rails, which makes the forward platform and the lateral follow-up platform run smoothly.

[0010] Furthermore, the oscillating yarn guiding mechanism includes an oscillating motor, an oscillating rod, and a yarn guiding rod. The oscillating yarn guiding mechanism is mounted on a lateral follower platform and moves together with the lateral follower platform. The oscillating rod is driven by the oscillating motor, which drives the yarn guiding rod to oscillate back and forth, guiding the yarn from the optimal opening of the fabric to complete the yarn guiding action.

[0011] Furthermore, there are two swing rods, which are respectively connected to the swing motor and the bearing seat on the lateral follow-up platform. The yarn guide rod is hook-shaped and forms a spatial parallelogram with the two swing rods. Under the drive of the swing motor, it realizes spatial swing motion. Through the combined motion of the follow-up yarn guide platform and the swing motor, the yarn guide rod introduces the yarn from the optimal position of the narrow diamond-shaped opening when it reaches the highest point, thus completing the yarn guide action.

[0012] Furthermore, the tension compensation yarn supply mechanism includes a yarn frame, a yarn guide wheel, and a tension compensation mechanism. The yarn guide wheel and the tension compensation mechanism are installed sequentially from top to bottom on the yarn frame to control the yarn tension to be uniform.

[0013] Furthermore, the tension compensation mechanism includes a tension control unit and a yarn storage cylinder. The yarn storage cylinder is controlled by the tension control unit to keep the yarn tension constant throughout the entire yarn feeding and sewing process.

[0014] Furthermore, the continuous edge-locking mechanism includes a follower module, an edge-locking drive mechanism, and a hook. The follower module drives the edge-locking drive mechanism to follow the current yarn feeding position. The hook is mounted on the edge-locking drive mechanism and is used to hook the yarn at the bend of the yarn feeding rod. Through its reciprocating motion, it continuously locks the yarn, thereby realizing the edge-locking function.

[0015] Furthermore, the overlock drive mechanism is a crank-slider mechanism, including an overlock connecting rod and an overlock guide wheel. The overlock connecting rod reciprocates along the width direction under the action of the overlock guide wheel, and the stroke is adjusted by screws. The hook is installed on the overlock connecting rod and is used to hook the yarn and form a continuous lock.

[0016] A follow-up oscillating yarn feeding and sewing method, based on the aforementioned follow-up oscillating yarn feeding and sewing device, realizes follow-up oscillating yarn feeding and sewing. The specific working process is as follows:

[0017] When a column of the three-dimensional fabric opens, the follower yarn feeding platform moves to the opening position of the yarn feeding area, and the swinging yarn feeding mechanism introduces the yarn from the current column's narrow diamond-shaped opening.

[0018] At the same time, the continuous overlock mechanism moves to the current opening position, hooks the yarn and forms a continuous lock with the yarn of the previous cycle, completing the overlock cycle;

[0019] After the edge locking cycle is completed, the follow-up yarn feeding platform moves to the next column opening position and enters the next yarn feeding cycle.

[0020] Compared with the prior art, the present invention has the following significant advantages: it solves the problems of yarn feeding and edge locking forming of three-dimensional fabrics with large width, large thickness and high density, and improves the production efficiency and forming consistency of the fabric. Attached Figure Description

[0021] Figure 1 This is an assembly diagram of an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the continuous locking mechanism in an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] like Figure 1 As shown, the present invention discloses a follower-type oscillating yarn feeding and selvage device, comprising a follower-type yarn feeding platform 1, an oscillating yarn feeding mechanism 2, a tension-compensating yarn supply mechanism 3, and a continuous selvage mechanism 4. The oscillating yarn feeding mechanism 2 and the tension-compensating yarn supply mechanism 3 are mounted on the follower-type yarn feeding platform 1 and move together with it. The continuous selvage mechanism 4 and the follower-type yarn feeding platform 1 are respectively arranged opposite to each other on both sides of the fabric.

[0025] The follow-up yarn feeding platform 1 has two degrees of freedom of movement in the width and thickness directions on the mounting plane. It consists of a forward platform 11, a lateral follow-up platform 12, a forward drive 13, a forward guide mechanism 14, a lateral drive 15, and a lateral guide mechanism 16. The forward platform 11 is connected to the worktable through the forward guide mechanism 14 and is powered by the forward drive 13, keeping the yarn feeding action within the working area. The lateral follow-up platform 12 is mounted on the forward platform 11 through the lateral guide mechanism 16 and is powered by the lateral drive 15, causing the oscillating yarn feeding mechanism 2 to follow the current column opening position along the width direction. In this embodiment, both the forward drive 13 and the lateral drive 15 are stepper motors. The forward guide mechanism 14 and the lateral guide mechanism 16 are arranged perpendicularly and use linear guides to ensure smooth operation of the forward platform 11 and the lateral follow-up platform 12. The guide rail of the forward guide mechanism 14 is inverted relative to the worktable, reducing the footprint and increasing the stroke.

[0026] In this embodiment, the oscillating yarn guiding mechanism 2 is mounted on the lateral follow-up platform 12 and consists of an oscillating motor 21, an oscillating rod 22, and a yarn guiding rod 23. The oscillating motor 21 is driven by a stepper motor. There are two oscillating rods 22, which are respectively connected to the oscillating motor 21 and the bearing seats on the lateral follow-up platform 12. The yarn guiding rod 23 is hook-shaped and forms a spatial parallelogram with the two oscillating rods 22, realizing spatial oscillating motion under the drive of the oscillating motor 21. Through the combined motion of the follow-up yarn guiding platform and the oscillating motor, the yarn guiding rod 23 guides the yarn from the optimal position of the narrow diamond-shaped opening when it reaches its highest point, completing the yarn guiding action.

[0027] In this embodiment, the tension-compensating yarn feeding mechanism 3 is installed at the rear end of the lateral follow-up platform 12, and includes a yarn frame 31, a guide roller 32, and a tension compensation mechanism 33. The tension compensation mechanism 33 consists of a tension control unit 331 and a yarn storage cylinder 332. The yarn frame 31 is vertically installed, with its side plane parallel to the yarn feeding plane. The guide roller 32 and the tension compensation mechanism 33 are installed sequentially from top to bottom. The yarn is stored in the yarn storage cylinder 332, passes through the guide roller 32, and follows in an "S" shape to ensure a constant yarn feeding inlet and outlet position and stable tension. The tension control unit 331 is connected to the yarn storage cylinder 332. In this example, a DC torque motor is used to actively control the tension through feedback, balancing the tension fluctuations during the oscillating yarn feeding and ensuring constant yarn tension.

[0028] like Figure 1 , 2 As shown, in this embodiment, the continuous edge-locking mechanism 4 is installed opposite the follower yarn-feeding platform 1, and includes a follower module 41, an edge-locking drive mechanism 42, and a hook 43. Driven by the follower module 41, the edge-locking drive mechanism 42 follows the yarn-feeding position along the fabric width direction. The edge-locking drive mechanism 42 is a crank-slider mechanism, including an edge-locking connecting rod 421 and an edge-locking guide wheel 422. The edge-locking connecting rod 421 reciprocates along the fabric width direction under the action of the edge-locking guide wheel 422, and the stroke can be adjusted by a screw. The hook 43 is fixed to the front section of the edge-locking connecting rod 421 and is used to hook the yarn at the bend of the yarn-feeding rod 23, continuously locking through its reciprocating stroke to achieve the edge-locking function.

[0029] The working process of the follow-up oscillating yarn feeding and sewing device is as follows:

[0030] When a column of the three-dimensional fabric opens, the forward platform 11 moves to the yarn-feeding area under the action of the forward drive 13, while the lateral follow-up platform 12 moves to the opening position under the lateral drive 15. The yarn-feeding rod 23, driven by the oscillating motor 21, introduces the yarn from the current column's narrow diamond-shaped opening. At the same time, the edge-locking drive mechanism 42, driven by the follow-up module 41, moves to the current opening position, and the hook 43 performs a cyclic reciprocating motion in the edge-locking drive mechanism 42, hooking the yarn at the bend of the yarn-feeding rod 23 and forming a continuous lock with the yarn of the previous cycle, completing the edge-locking cycle. After the edge-locking cycle is completed, the yarn-feeding rod 23 retracts under the drive of the oscillating motor 21, and the follow-up yarn-feeding platform 1 moves laterally to the next column's opening position to enter the next yarn-feeding cycle. Throughout the entire yarn-feeding and edge-locking process, the yarn tension is actively controlled by the tension control unit 331 to ensure smooth operation and constant yarn tension throughout the process.

[0031] In this example, the driving and guiding mechanisms use, but are not limited to, motors, guide rails, and guide wheels.

[0032] In summary, the follow-up oscillating yarn feeding and edge locking device of the present invention can complete the follow-up and feeding motion of the fabric width and thickness direction, oscillating the yarn from the optimal opening position into the diamond-shaped narrow opening channel, and the edge locking mechanism completes the continuous edge locking, realizing the automated forming of three-dimensional fabric, improving production efficiency and the dimensional consistency of the formed fabric.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A follow-up oscillating yarn feeding and sewing device, characterized in that, It includes a follow-up yarn feeding platform (1), a swinging yarn feeding mechanism (2), a tension-compensating yarn supply mechanism (3), and a continuous sewing mechanism (4), wherein: The swing yarn feeding mechanism (2) and the tension compensation yarn supply mechanism (3) are installed on the follower yarn feeding platform (1) and follow the current opening movement of the fabric following the follower yarn feeding platform (1); The continuous edge-locking mechanism (4) and the follow-up yarn-drawing platform (1) are respectively placed opposite each other on both sides of the fabric and move along the width direction of the fabric following the yarn-drawing position; The oscillating yarn feeding mechanism (2) introduces the yarn from the opening position and completes continuous edge locking via the continuous edge locking mechanism (4); the tension compensation yarn supply mechanism (3) supplies yarn and controls the yarn tension to be constant. The follow-up yarn feeding platform (1) includes a forward platform (11), a lateral follow-up platform (12), a forward drive (13), a forward guide mechanism (14), a lateral drive (15), and a lateral guide mechanism (16); the lateral follow-up platform (12) is mounted on the forward platform (11), and is powered by the lateral drive (15) to reciprocate laterally, and is guided by the lateral guide mechanism (16); the forward platform (11) is powered by the forward drive (13) to reciprocate in the forward direction, and is guided by the forward guide mechanism (14); The oscillating yarn guiding mechanism (2) includes an oscillating motor (21), an oscillating rod (22), and a yarn guiding rod (23). The oscillating yarn guiding mechanism (2) is mounted on a lateral follower platform (12) and moves together with the lateral follower platform (12). The oscillating rod (22) is driven by the oscillating motor (21) to drive the yarn guiding rod (23) to oscillate back and forth, and to introduce the yarn from the optimal opening of the fabric to complete the yarn guiding action. There are two swing rods (22), which are connected to the bearing seats on the swing motor (21) and the lateral follower platform (12) respectively. The yarn guide rod (23) is hook-shaped and forms a spatial parallelogram with the two swing rods (22). Under the drive of the swing motor (21), it realizes spatial swing motion. Through the combined motion of the follower yarn guide platform and the swing motor, the yarn guide rod (23) introduces the yarn from the best position of the diamond-shaped narrow opening when it reaches the highest point, thus completing the yarn guide action. The continuous edge-locking mechanism (4) includes a follower module (41), an edge-locking drive mechanism (42), and a hook (43). The follower module (41) drives the edge-locking drive mechanism (42) to follow the current yarn feeding position. The hook (43) is installed on the edge-locking drive mechanism (42) and is used to hook the yarn at the bend of the yarn feeding rod (23). Through its reciprocating motion, it continuously locks and achieves the edge-locking function. The edge-locking drive mechanism (42) is a crank-slider mechanism, including an edge-locking connecting rod (421) and an edge-locking guide wheel (422). The edge-locking connecting rod (421) reciprocates along the width direction under the action of the edge-locking guide wheel (422), and the stroke is adjusted by screws. The hook (43) is installed on the edge-locking connecting rod (421) and is used to hook the yarn and form a continuous lock.

2. The follow-up oscillating yarn feeding and sewing device according to claim 1, characterized in that, The forward guiding mechanism (14) and the lateral guiding mechanism (16) adopt linear guide rails, so that the forward platform (11) and the lateral follow-up platform (12) run smoothly.

3. The follow-up oscillating yarn feeding and sewing device according to claim 1, characterized in that, The tension compensation yarn supply mechanism (3) includes a yarn frame (31), a yarn guide wheel (32), and a tension compensation mechanism (33). The yarn guide wheel (32) and the tension compensation mechanism (33) are installed on the yarn frame (31) from top to bottom to control the yarn tension evenly.

4. The follow-up oscillating yarn feeding and sewing device according to claim 3, characterized in that, The tension compensation mechanism (33) includes a tension control unit (331) and a yarn storage cylinder (332). The yarn storage cylinder (332) is controlled by the tension control unit (331) to keep the yarn tension constant throughout the entire yarn feeding and sewing process.

5. A follow-up oscillating yarn feeding and sewing method, based on the follow-up oscillating yarn feeding and sewing device according to any one of claims 1-4, realizes follow-up oscillating yarn feeding and sewing, and the specific working process is as follows: When a column of the three-dimensional fabric opens, the follower yarn feeding platform moves to the opening position of the yarn feeding area, and the swinging yarn feeding mechanism introduces the yarn from the current column's narrow diamond-shaped opening. At the same time, the continuous overlock mechanism moves to the current opening position, hooks the yarn and forms a continuous lock with the yarn of the previous cycle, completing the overlock cycle; After the edge locking cycle is completed, the follow-up yarn feeding platform moves to the next column opening position and enters the next yarn feeding cycle.

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