Jacquard warp knitting machine meeting tensioning requirement of high-performance concave-convex three-dimensional jacquard fabric

Abstract

The utility model relates to the technical field of warp knitting machines, in particular to a jacquard warp knitting machine meeting the requirement for tensioning high-performance concave-convex three-dimensional jacquard fabric, which comprises a machine frame and a cloth feeding roller rotatably mounted on the machine frame, and further comprises a swing arm and a holding mechanism, a cloth guide roller is rotatably mounted on the swing arm, one end of the swing arm is hinged to the machine frame, and the other end of the swing arm is hinged to the holding mechanism. The holding mechanism is arranged on the machine frame and located at one end of the cloth feeding roller, the holding mechanism is in transmission connection with the swing arm and holds or loosens the cloth feeding roller through the swing amplitude of the swing arm, and a driving mechanism used for driving the cloth guide roller to rotate is arranged on the machine frame. According to the technical scheme, the holding degree of the holding mechanism to the cloth feeding roller is controlled through the control mechanism, rotation of the cloth feeding roller is controlled, the conveying speed of the yarn is controlled, the tension degree requirement during yarn warp knitting is met, the scheme is of a pure mechanical structure, the environmental influence is greatly reduced, the response speed is controlled, and it is guaranteed that the yarn tension degree is controlled stably and reliably.

Description

Technical Field

[0001] The utility model relates to the technical field of warp knitting machines, in particular to a jacquard warp knitting machine which is adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics. Background Art

[0002] High-performance concave and convex three-dimensional jacquard fabric is a fabric with unique texture and superior performance. It achieves the concave and convex three-dimensional effect of the fabric through jacquard machine technology. Its soft and comfortable touch makes it widely used in clothing and footwear. Because jacquard fabric adopts a special weaving process, there are many tiny air holes inside the fabric, which ensures good breathability and strong wear resistance. It can resist wear and tear during daily wear and washing, and extend the service life of clothing or footwear. High-performance concave and convex three-dimensional jacquard fabric has excellent color performance and can present bright and rich colors to meet consumers' diverse needs for the appearance of clothing or footwear. Jacquard fabric is widely used in shoe uppers, clothing and household items. During the production process, jacquard fabrics are warped through warp knitting machines. Since the tension of the yarn itself is constantly changing, in order to ensure that the tension of the yarn meets the requirements, a tension sensor is currently installed on the warp knitting machine. The sensor sends a signal to the direct drive motor, and the warp tension is adjusted by changing the motor speed. However, the sensor itself is an electrical component and is greatly affected by the surrounding environment and itself. It is prone to failure, resulting in the inability to transmit signals in a timely manner. In severe cases, yarn breakage and other phenomena may occur, affecting production efficiency. Utility Model Content

[0003] The technical problem to be solved by the present invention is: in order to solve the problem that a tension sensor is installed on the warp knitting machine, the sensor sends a signal to the direct drive motor, and the tension of the warp yarn is adjusted by changing the speed of the motor, but the sensor itself is an electrical component, which is greatly affected by the surrounding environment and itself, and is prone to failure, resulting in the inability to transmit signals in time. In severe cases, yarn breakage and the like occur, which affects production efficiency. A jacquard warp knitting machine that is suitable for the tensioning needs of high-performance concave and convex three-dimensional jacquard fabrics is now provided.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a jacquard warp knitting machine adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics, comprising a frame and a cloth feed roller rotatably mounted on the frame, a swing arm and a clamping mechanism, the swing arm rotatably mounted with a cloth guide roller, one end of the swing arm being hinged to the frame, the clamping mechanism being arranged on the frame and located at one end of the cloth feed roller, the clamping mechanism and the swing arm being transmission-connected to each other and clamping or loosening the cloth feed roller by the swing amplitude of the swing arm, and the frame being provided with a driving mechanism for driving the cloth guide roller to rotate;

[0005] The clamping mechanism includes two opposing clamping seats, one end of which is hinged to a frame. A first gear is rotatably mounted on the frame, and a second gear is fixedly mounted on the swing arm. The first and second gears mesh with each other. A connecting rod is hinged to each of the clamping seats, one end of which is eccentrically hinged to the first gear. A four-bar linkage is formed between the clamping seats, the connecting rod, the first gear, and the frame. Compared to the existing technology, this solution controls the clamping mechanism's grip on the cloth feed roller through a transmission connection between the rocker arm and the clamping mechanism, thereby controlling the feed roller's rotation and controlling the yarn feed speed to meet the yarn tension requirements during warp knitting. This solution is a purely mechanical structure, significantly reduced in environmental influences, and has a controlled response speed, ensuring stable and reliable yarn tension control.

[0006] In order to realize the hinge connection of the connecting rod on the first gear, in some preferred embodiments, a rotating shaft is rotatably mounted on the first gear, the rotating shaft is eccentrically arranged with the first gear, and one end of the connecting rod is arranged on the rotating shaft. The structure is simple and easy to install and manufacture.

[0007] Because yarn types vary and have different tension requirements, in order to meet the production needs of different yarn types, in some preferred embodiments, one end of the connecting rod is slidably mounted on the rotating shaft, and an adjustment mechanism is provided between the connecting rod and the rotating shaft. The adjustment mechanism is used to adjust the tightness of the clamping seat on the cloth feed roller. By sliding the connecting rod and the rotating shaft and providing an adjustment mechanism between the connecting rod and the rotating shaft, the relative position between the mechanism rotating shaft and the connecting rod is adjusted, and the tightness of the clamping seat on the cloth feed roller is changed.

[0008] In order to achieve sliding between the rotating shaft and the connecting rod, in some preferred embodiments, a sliding hole is opened on the rotating shaft, the connecting rod matches the sliding hole, and one end of the connecting rod is slidably arranged in the sliding hole.

[0009] In some preferred embodiments, the adjustment mechanism includes an adjustment nut and a spring, the adjustment nut is threadedly connected to the connecting rod, the rotating shaft is located between the adjustment nut and the clamping seat, and the spring is arranged between the rotating shaft and the adjustment nut.

[0010] In some preferred embodiments, a wear-resistant pad in contact with the cloth roller is provided at one end of the clamping seat close to the cloth feed roller.

[0011] To enable the swing arm to swing within a certain range, in some preferred embodiments, the pitch circle diameter of the first gear is larger than the pitch circle diameter of the second gear. The pitch circle diameter of the second gear on the swing arm is smaller than the pitch circle diameter of the first gear on the frame. The smaller-diameter second gear drives the larger-diameter second gear, increasing the swing range of the swing arm and meeting the warp tension requirement.

[0012] In order to realize the driving mechanism, preferably in some embodiments, the driving mechanism is a motor, and the motor and the cloth feeding roller are connected to each other through a pulley mechanism.

[0013] The beneficial effects of the present invention are as follows: when in use, the jacquard warp knitting machine of the present invention, which is adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics, is connected to the clamping mechanism through a rocker arm transmission, so as to control the clamping degree of the clamping mechanism on the cloth feed roller, thereby controlling the rotation of the cloth feed roller, and controlling the yarn delivery speed, so as to meet the tensioning requirements of the yarn during warp knitting. The present scheme is a purely mechanical structure, which is greatly affected by the environment, controls the response speed, ensures stable and reliable control of the yarn tension, and avoids the existing method of installing a tension sensor on the warp knitting machine, wherein the sensor sends a signal to the direct drive motor, and adjusts the tension of the warp yarn by changing the speed of the motor. However, the sensor itself is an electrical component, which is greatly affected by the surrounding environment and itself, and is prone to failure, resulting in the inability to transmit signals in time. In severe cases, yarn breakage and the like may occur, affecting production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 It is the main view of the utility model;

[0016] Figure 2 It is a rear view of the utility model;

[0017] Figure 3 yes Figure 2 A partial enlarged view of middle A;

[0018] Figure 4 yes Figure 2 A partial enlarged view of B in the middle;

[0019] Figure 5 It is a schematic diagram of the connection structure between the large gear and the connecting rod in the utility model.

[0020] In the figure: 1. frame, 2. cloth feed roller, 3. swing arm, 4. clamping mechanism, 5. cloth guide roller, 6. driving mechanism, 7. clamping seat, 8. first gear, 9. second gear, 10. connecting rod, 11. rotating shaft, 12. adjusting mechanism, 13. sliding hole, 14. adjusting nut, 15. spring, 16. wear-resistant pad. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the following embodiments:

[0022] The present invention is not limited to the following specific embodiments. Based on the disclosure of this invention, a person skilled in the art can adopt a variety of other specific embodiments to implement the present invention. Any simple changes or modifications made to the design structure and concept of this invention fall within the scope of protection of this invention. It should be noted that the embodiments and features of the embodiments of this invention can be combined with each other unless there is a conflict.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] like Figure 1-5The cloth-feeding roller 2 of this embodiment is connected with the cloth-feeding roller 2 of this embodiment, and the cloth-feeding roller 2 of this embodiment is connected with the cloth-feeding roller 2 of this embodiment.

[0026] The clamping mechanism 4 includes two clamping seats 7 arranged opposite to each other, one end of the clamping seat 7 is hinged to the frame 1, and the two clamping seats 7 are symmetrically arranged with respect to each other. A first gear 8 is rotatably mounted on the frame 1, and a second gear 9 is fixedly mounted on the swing arm 3. The rotation center of the second gear 9 coincides with the swing center of the swing arm 3. The first gear 8 and the second gear 9 are meshed with each other. A connecting rod 10 is hinged on the two clamping seats 7, and one end of the connecting rod 10 on the two clamping seats 7 is eccentrically hinged to the first gear 8, so that a four-link 10 mechanism is formed between the clamping seat 7, the connecting rod 10, the first gear 8 and the frame 1.

[0027] The first gear 8 is rotatably installed with a rotating shaft 11 through a bearing. The rotating shaft 11 is eccentrically arranged with the first gear 8. An adjusting mechanism 12 is arranged between the connecting rod 10 and the rotating shaft 11. The adjusting mechanism 12 is used to adjust the tightness of the clamping seat 7 to the cloth feed roller 2. The tension of the warp yarn can be manually adjusted according to the warp yarn state. A sliding hole 13 is provided on the rotating shaft 11. The connecting rod 10 matches the sliding hole 13. One end of the connecting rod 10 is slidably set in the sliding hole 13, so that one end of the connecting rod 10 is slidably set on the rotating shaft 11. The adjusting mechanism 12 includes an adjusting nut 14 and a spring 15. The adjusting nut 14 is threadedly connected to the end of the connecting rod 10 away from the clamping seat 7. The rotating shaft 11 is located between the adjusting nut 14 and the clamping seat 7. The spring 15 is sleeved on the connecting rod 10 and is located between the rotating shaft 11 and the adjusting nut 14.

[0028] A wear-resistant pad 16 is provided at one end of the holding seat 7 close to the cloth feed roller 2. The wear-resistant pad 16 is in an inferior arc shape and contacts the cloth roller. The wear-resistant pad 16 is replaceable for easy later maintenance.

[0029] The pitch circle diameter of the first gear 8 is larger than the pitch circle diameter of the second gear 9 , that is, the first gear 8 is a large gear and the second gear 9 is a small gear.

[0030] When the above-mentioned jacquard warp knitting machine adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics is in use, the warp yarn enters through the cloth feed roller 2 on the frame 1, and then passes through the cloth guide roller 5 to the next workstation, and the motor of the drive mechanism 6 is started to actively control the yarn delivery speed. At this time, the warp yarn generates tension after delivery and lifts the rocker arm. When the tension of the warp yarn is within the normal range, the rocker arm 3 swings slightly. Since the second gear 9 is on the rocker arm 3, the amplitude of the rotation of the first gear 8 is small, so that the contact force between the wear-resistant pad 16 on the clamping seat 7 and one end of the cloth feed roller 2 is constant. When the warp yarn tension is too large, the rocker arm 3 swings up, and at the same time, the second gear 9 on the rocker arm 3 drives the first gear 8 to rotate, and the first gear 8 drives the connecting rod 10, and the connecting rod 10 drives the clamping end The tightening seat 7 rotates on the frame 1, and the wear-resistant pad 16 on the tightening seat 7 reduces the contact force with the cloth feed roller 2. At this time, the force of the tightening seat 7 on the cloth feed roller 2 is reduced, the motor speed becomes faster, and the tension of the warp yarn will gradually decrease until it is reduced to an appropriate range. When the warp tension is too small, the swing arm 3 swings down, and at the same time, the second gear 9 on the swing arm 3 drives the first gear 8 to rotate, and the first gear 8 drives the connecting rod 10, and the connecting rod 10 drives the tightening seat 7 at one end to rotate on the frame 1, and the wear-resistant pad 16 on the tightening seat 7 increases the contact force with the cloth feed roller 2. At this time, the force of the tightening seat 7 on the cloth feed roller 2 increases, the motor speed slows down, and the tension of the warp yarn will gradually increase until it rises to an appropriate range, thereby realizing automatic tension adjustment of the warp yarn.

[0031] The above-described preferred embodiments of the present invention are intended as a guide. Based on the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A jacquard warp knitting machine adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics, comprising a frame (1) and a fabric feed roller (2) rotatably mounted on the frame (1), characterized in that: It also includes a swing arm (3) and a clamping mechanism (4), wherein the swing arm (3) is rotatably mounted with a cloth guide roller (5), one end of the swing arm (3) is hinged to the frame (1), and the clamping mechanism (4) is arranged on the frame (1) and located at one end of the cloth feed roller (2), the clamping mechanism (4) and the swing arm (3) are mutually connected in a transmission manner and clamp or release the cloth feed roller (2) by the swing amplitude of the swing arm (3), and a driving mechanism (6) for driving the cloth guide roller (5) to rotate is arranged on the frame (1); The clamping mechanism (4) comprises two clamping seats (7) arranged opposite to each other, one end of the clamping seat (7) is hinged on the frame (1), a first gear (8) is rotatably mounted on the frame (1), a second gear (9) is fixedly mounted on the swing arm (3), the first gear (8) and the second gear (9) are meshed with each other, a connecting rod (10) is hinged on each of the two clamping seats (7), one end of the connecting rod (10) on the two clamping seats (7) is eccentrically hinged on the first gear (8), and a four-link (10) mechanism is formed between the clamping seat (7), the connecting rod (10), the first gear (8) and the frame (1).

2. The jacquard warp knitting machine adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics according to claim 1, characterized in that: A rotating shaft (11) is rotatably mounted on the first gear (8), the rotating shaft (11) and the first gear (8) are eccentrically arranged, and one end of the connecting rod (10) is arranged on the rotating shaft (11).

3. The jacquard warp knitting machine adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics according to claim 2, characterized in that: One end of the connecting rod (10) is slidably arranged on the rotating shaft (11), and an adjusting mechanism (12) is arranged between the connecting rod (10) and the rotating shaft (11). The adjusting mechanism (12) is used to adjust the degree of tightening of the tightening seat (7) to the cloth feeding roller (2).

4. The jacquard warp knitting machine adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics according to claim 3, characterized in that: A sliding hole (13) is provided on the rotating shaft (11), the connecting rod (10) matches the sliding hole (13), and one end of the connecting rod (10) is slidably arranged in the sliding hole (13).

5. The jacquard warp knitting machine adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics according to claim 4, characterized in that: The adjusting mechanism (12) comprises an adjusting nut (14) and a spring (15); the adjusting nut (14) is threadedly connected to the connecting rod (10); the rotating shaft (11) is located between the adjusting nut (14) and the clamping seat (7); and the spring (15) is arranged between the rotating shaft (11) and the adjusting nut (14).

6. The jacquard warp knitting machine adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics according to claim 1, characterized in that: One end of the holding seat (7) close to the cloth feeding roller (2) is provided with a wear-resistant pad (16) in contact with the cloth roller.

7. The jacquard warp knitting machine adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics according to claim 1, characterized in that: The pitch circle diameter of the first gear (8) is larger than the pitch circle diameter of the second gear (9).

8. The jacquard warp knitting machine adapted to the tensioning requirements of high-performance concave-convex three-dimensional jacquard fabrics according to claim 1, characterized in that: The driving mechanism (6) is a motor, and the motor and the cloth feeding roller (2) are connected to each other through a pulley mechanism.

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