Jacquard warp knitting machine for stable thread hooking of high-performance concave-convex three-dimensional jacquard fabric

Abstract

The utility model provides a jacquard warp knitting machine for stable yarn hooking of a high-performance concave-convex three-dimensional jacquard fabric, which is provided with a crochet hook for upwards hooking yarns; the hooked needle comprises a needle body, the upper end of the hooked needle is sequentially connected with a needle hook, a needle head and a needle tip which form a U shape with a downward opening, the needle hook is provided with a needle groove, and the upper end of the needle tip is hinged to the needle head. A driving rod extending downwards is arranged on the other side of the needle point on the hinge point; when the crochet needle does not work, the needle tip and the needle hook form an insertion groove under the action of gravity and used for insertion of yarn. When the crochet hook hooks the yarn and descends, the yarn pushes the driving rod to ascend, the needle tip rotates, and the lower end of the needle tip is inserted into the needle groove. The needle point is hinged, so that deformation is avoided, and the service life of the crochet needle is prolonged; in addition, due to the hinged arrangement of the needle tip, an original pressing plate is omitted, the structure of the jacquard warp knitting machine is simplified, and cost is reduced.

Description

Technical Field

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

[0002] There is a loop forming mechanism of a jacquard warp knitting machine that uses a crochet needle. Figure 5 As shown, a traditional crochet hook consists of a needle, hook, and tip in a fixed U-shaped structure, with the opening facing downward. This design requires a pressure plate to insert the lower end of the tip into the hook's groove when the hook hooks the yarn, allowing the needle, hook, and tip to descend into the yarn loop. However, this design has some significant disadvantages.

[0003] First, the needle tip is prone to plastic deformation after repeated deformation, making it difficult for the needle tip to return to its original position after the pressure plate is separated from the needle tip. This deformation causes the needle tip to either remain inserted into the needle groove, preventing the hook from hooking the yarn, affecting fabric production efficiency and quality; or the needle tip is too close to the needle groove, cutting the yarn during hooking, resulting in material waste and production interruption. Utility Model Content

[0004] In order to solve the technical problems in the background technology, the utility model discloses a jacquard warp knitting machine for stably hooking high-performance concave-convex three-dimensional jacquard fabrics.

[0005] The utility model provides a jacquard warp knitting machine for stably hooking yarns of high-performance concave-convex three-dimensional jacquard fabrics, which is provided with a crochet needle for hooking yarn upwards; the crochet needle comprises a needle body, the upper end of which is sequentially connected with a needle hook, a needle head and a needle tip; the needle hook, the needle head and the needle tip form a U-shape with an opening facing downwards; the needle hook is provided with a needle groove, and the upper end of the needle tip is hinged to the needle head;

[0006] A driving rod extending downward is provided on the other side of the needle tip located at the hinge point;

[0007] When the crochet hook is not working, the needle tip forms a slot with the hook under the action of gravity for yarn insertion;

[0008] When the hook hooks the yarn and descends, the yarn pushes the driving rod to rise, so that the needle tip rotates and the lower end of the needle tip is inserted into the needle groove.

[0009] When the hook is not working, the needle tip hangs down freely under the action of gravity, and forms a slot between the needle tip and the hook, creating sufficient space for the yarn to be hooked, and the yarn can stably enter the slot. When the hook hooks the yarn, as the hook descends, the yarn moves to the bottom of the slot and applies pressure to the drive rod, thereby driving the needle tip to rotate toward the hook. The lower end of the needle tip is inserted into the needle groove, so that the outer side of the needle tip forms a guide, and the hook can stably insert into the yarn loop. When the yarn is knitted and the hook rises again, the drive rod is separated from the knitted yarn, and the needle tip is reset under the action of gravity. The hinged setting of the needle tip will not cause deformation, thereby extending the service life of the hook. In addition, the hinged setting of the needle tip also eliminates the original pressure plate, which not only simplifies the structure of the jacquard warp knitting machine but also reduces costs.

[0010] Because the lower end of the hook is unstable, the yarn may not fit into the slot. Therefore, a further improvement is that the lower end of the needle tip is connected to a guide portion that is tilted downward away from the needle body. This arrangement creates a flared structure between the lower end of the needle tip and the hook, making it easier to guide the yarn into the slot.

[0011] Because the lower end of the drive rod has a small area, the yarn has difficulty accurately aligning with the drive rod after entering the slot, making it difficult to stably push the drive rod. Based on this, a further improvement is that the lower end of the drive rod is connected to a force plate, one end of which extends toward the needle tip and the other end toward the needle hook, so that the force plate contacts the yarn. The provision of the force plate increases the contact area between the drive rod and the yarn, so that when the yarn applies pressure at any position on the lower end of the force plate, it can stably push the drive rod upward.

[0012] Conventional force-bearing plates are designed to be straight, resulting in unstable yarn positions. When the yarn applies pressure to the force-bearing plate, it will shift, making it difficult to effectively push the drive rod. Based on this, a further improvement is to design the force-bearing plate to be arc-shaped and arch upward. This configuration allows the lower end of the force-bearing plate to guide the yarn, ensuring that when the yarn applies pressure to the force-bearing plate, it remains at the highest position on the lower end of the force-bearing plate, thereby stably pushing the drive rod upward.

[0013] If the highest point of the force-bearing plate is located directly below the hinge point or between the intersection point and the needle tip, the distance between the yarn and the driving rod is too far, making it difficult to stably push the driving rod up. Based on this, further improvements are made in that the highest end of the force-bearing plate is located on the other side of the needle tip hinge, close to the driving rod.

[0014] Because there are gaps between the force-bearing plate and the needle tip, and between the force-bearing plate and the needle body, the yarn easily passes through the force-bearing plate through these gaps, preventing the drive rod from rising and preventing the needle tip from rotating. Based on this, a further improvement is that the needle tip is provided with a first slot, and the needle hook is provided with a second slot; plug-in portions extend from both ends of the force-bearing plate, respectively plugging into the first and second slots. Furthermore, during the rotation of the force-bearing plate, the plug-in portions remain plugged into the first and second slots.

[0015] If the needle tip is inserted too deeply into the needle slot, it is easy for the needle tip to swing back and forth when resetting, thereby affecting the hooking of yarn. Based on this, a further design is: the position of the second slot is set so that when the guide part is fully retracted into the needle slot, one of the plug-in parts rests against the upper slot wall of the second slot.

[0016] The beneficial effects of the utility model are: the hinged setting of the needle tip will not cause deformation, thereby extending the service life of the crochet hook; and the hinged setting of the needle tip also eliminates the original pressing plate, which not only simplifies the structure of the jacquard warp knitting machine but also reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is the main view of the utility model and is in a non-working state;

[0019] Figure 2 It is the main view of the utility model and is in the state of hooking the yarn;

[0020] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0021] Figure 4 yes Figure 2 Enlarged view of point B in the middle;

[0022] Figure 5 This is the main view of traditional crochet;

[0023] In the figure: 1. needle body; 2. needle hook; 3. needle head; 4. needle tip; 5. needle groove; 6. driving rod; 7. guide part; 8. force plate; 9. first slot; 10. second slot. DETAILED DESCRIPTION

[0024] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0025] like Figure 1As shown, the utility model discloses a jacquard warp knitting machine for stably hooking yarns of high-performance concave-convex three-dimensional jacquard fabrics, which is provided with a crochet needle for hooking yarns upwards.

[0026] The crochet needle comprises a needle body 1 , the upper end of which is sequentially connected with a needle hook 2 , a needle head 3 and a needle tip 4 . The needle hook 2 , the needle head 3 and the needle tip 4 form a U-shape with the opening facing downwards. The needle hook 2 is provided with a needle groove 5 .

[0027] The upper end of the needle tip 4 is hinged to the needle head 3; a driving rod 6 extending downward is provided on the other side of the needle tip 4 at the hinge point. Figure 1 As shown, when the crochet hook is not working, the needle tip 4 forms a slot with the needle body 1 under the action of gravity for inserting yarn; Figure 3 As shown, when the hook hook 2 hooks the yarn and descends, the yarn pushes the driving rod 6, causing the needle tip 4 to rotate, and the lower end of the needle tip 4 is inserted into the needle groove 5.

[0028] The lower end of the needle tip 4 is connected to a guide portion 7; the guide portion 7 is tilted downward away from the needle body 1, so as to allow the yarn to stably enter the slot.

[0029] like Figure 3 and Figure 4 As shown, the lower end of the driving rod 6 is connected to a force-bearing plate 8, one end of which extends toward the needle tip 4 and the other end extends toward the needle hook 2; the force-bearing plate 8 is in contact with the yarn, and the force-bearing plate 8 increases the contact area with the yarn, so that the yarn can stably push the driving rod 6.

[0030] The force-bearing plate 8 is arc-shaped and arches upward. This arrangement allows the yarn to stabilize at the highest end of the plate 8 when it applies pressure. The highest end of the plate 8 is located on the other side of the hinged connection with the needle tip 4, near the drive rod 6. This position, where the force is applied to the yarn on the other side of the hinge, allows for stable rotation of the hook.

[0031] Since there is a gap between the force-bearing plate 8 and the needle tip 4, and between the force-bearing plate 8 and the needle body 1, the yarn can easily pass through the force-bearing plate 8 through the gap, causing the needle tip 4 to not rotate. Therefore, the following design is made: the needle tip 4 is provided with a first slot 9, and the needle hook 2 is provided with a second slot 10; both ends of the force-bearing plate 8 are extended with plug-in parts, which are respectively inserted into the first slot 9 and the second slot 10.

[0032] In order to achieve rotational limitation of the needle tip 4 , the position of the second slot 10 is set so that when the guide portion 7 is completely retracted into the needle slot 5 , one of the plug-in portions abuts against the upper slot wall of the second slot 10 .

[0033] The working principle of this embodiment is as follows: when the crochet hook is not working, the needle tip 4 hangs down freely under the action of gravity, and forms a slot between the needle tip 4 and the needle hook 2, forming sufficient space for hooking yarn, and the yarn can stably enter the slot; when the crochet hook hooks the yarn, as the crochet hook descends, the yarn moves to the bottom of the slot and applies pressure to the drive rod 6, thereby driving the needle tip 4 to rotate toward the needle hook 2, and the lower end of the needle tip 4 is inserted into the needle groove 5, so that the outer side of the needle tip 4 forms a guide, and the crochet hook can stably insert into the yarn loop; when the yarn is knitted, the crochet hook rises again, the drive rod 6 is separated from the knitted yarn, and the needle tip 4 is reset under the action of gravity.

[0034] Compared with the traditional structure, the beneficial effects of this embodiment are: the hinged setting of the needle tip 4 will not cause deformation, thereby extending the service life of the crochet hook; and the hinged setting of the needle tip 4 also eliminates the original pressure plate, which not only simplifies the structure of the jacquard warp knitting machine, but also reduces costs.

[0035] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make 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 content of the specification, but must be determined according to the scope of the claims.

Claims

1. A jacquard warp knitting machine for stably hooking yarns of high-performance concave-convex three-dimensional jacquard fabrics, provided with a hook needle for hooking yarn upwards; the hook needle comprises a needle body (1), the upper end of which is sequentially connected with a hook (2), a needle head (3) and a needle tip (4), the hook (2), the needle head (3) and the needle tip (4) forming a U-shape with an opening facing downwards, the hook (2) being provided with a needle groove (5), and characterized in that: The upper end of the needle tip (4) is hinged to the needle head (3); A driving rod (6) extending downward is provided on the other side of the needle tip (4) located at the hinge point; When the crochet hook is not working, the needle tip (4) forms a slot with the needle hook (2) under the action of gravity for inserting yarn; When the hook hooks the yarn and descends, the yarn pushes the driving rod (6) to rise, causing the needle tip (4) to rotate, and the lower end of the needle tip (4) is inserted into the needle groove (5).

2. The jacquard warp knitting machine for high-performance concave-convex three-dimensional jacquard fabric with stable hook thread according to claim 1, characterized in that: The lower end of the needle tip (4) is connected to a guide portion (7); The guide portion (7) is inclined downward away from the needle body (1).

3. The jacquard warp knitting machine for high-performance concave-convex three-dimensional jacquard fabric with stable hook thread according to claim 2, characterized in that: The lower end of the driving rod (6) is connected to a force-bearing plate (8), one end of which extends toward the needle tip (4) and the other end of which extends toward the needle hook (2); the force-bearing plate (8) is in contact with the yarn.

4. The jacquard warp knitting machine for high-performance concave-convex three-dimensional jacquard fabric with stable hook thread according to claim 3, characterized in that: The load-bearing plate (8) is in an arc shape and is arched upward.

5. The jacquard warp knitting machine for high-performance concave-convex three-dimensional jacquard fabric with stable hook thread according to claim 4, characterized in that: The highest end of the force-bearing plate (8) is located on the other side of the hinge of the needle tip (4), close to the driving rod (6).

6. The jacquard warp knitting machine for high-performance concave-convex three-dimensional jacquard fabric with stable hook thread according to claim 5, characterized in that: The needle tip (4) is provided with a first slot (9), and the needle hook (2) is provided with a second slot (10); Both ends of the force-bearing plate (8) are extended with plug-in parts, which are respectively plugged into the first slot (9) and the second slot (10).

7. The jacquard warp knitting machine for high-performance concave-convex three-dimensional jacquard fabric with stable hook thread according to claim 6, characterized in that: The position of the second slot (10) is set so that when the guide portion (7) is completely retracted into the needle slot (5), one of the plug-in portions abuts against the upper slot wall of the second slot (10).

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