A hook for a jacquard machine

Abstract

This utility model discloses a crochet hook for a jacquard machine, relating to the technical field of jacquard machine equipment. It includes a hook body comprising a gap and a heel, and a drain port located at the bottom of the gap. The drain port is situated between the gap and the heel, with its top communicating with the gap. The length L of the drain port is 7-10 mm, and its depth D is 3.65 mm. Chamfers R are provided on the top outer side, top inner side, and bottom inner side of the drain port. This utility model, by designing a drain port below the gap and incorporating chamfers R, facilitates the discharge of lint, effectively solving the problem of lint accumulation and ensuring the normal operation of the hook. Designing the heel as a right-angled triangle or redesigning it as a square of a specific size reduces the contact area with the needle cylinder drive groove, lowers friction, and extends the hook's service life. It also reduces the weight of the hook itself, lowers weaving costs, and improves economic efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of jacquard machine equipment, and more specifically to a crochet hook for a jacquard machine. Background Technology

[0002] The loop-cut jacquard machine is used to produce jacquard fabrics with pile. The pile is formed by pulling the yarn into loops with a hook needle and cutting the yarn to form pile, which is then woven into the base fabric.

[0003] The crochet hook precisely hooks the yarn through its curved hook structure at the front end and forms a loop in conjunction with the rotation of the cylinder, providing a foundation for subsequent cutting. The crochet hook has a gap to accommodate the thread cutter, and the heel at the end of the crochet hook is embedded in the cylinder drive groove, achieving precise up-and-down linear motion under the drive of the triangular device, ensuring the timing of the knitting action. When the circular knitting machine is running at high speed, contaminants such as fiber fluff and grease can easily accumulate in the gap of the crochet hook, so it is necessary to improve the structure. Utility Model Content

[0004] The purpose of this utility model is to provide a crochet hook for a jacquard machine in order to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A jacquard machine hook includes a hook body, the hook body includes a gap and a heel, the hook body also includes a drain port located at the bottom of the gap, the drain port is located in the middle of the gap and the heel, and the top of the drain port is connected to the gap, the length L of the drain port is 7-10mm, and the depth D of the drain port is 3.65mm.

[0007] The drain outlet has chamfered edges (R) at its top outer side, top inner side, and bottom inner side. The drain outlet, located below the gap, facilitates the removal and cleaning of lint. The chamfered edges (R) guide the lint outwards, preventing it from remaining at the bottom of the gap. The drain outlet depth (D) is slightly greater than the gap depth, with a difference of 0.5-1mm to facilitate lint removal.

[0008] The distance w between the bottom of the drain outlet and the needle heel is 3-5mm.

[0009] The needle heel has a right-angled triangular structure, and the inclination angle b on the needle heel is 25-50°. Most existing needle heels are rectangular in design, with a size of 3mm·5mm. This results in a large contact area with the needle cylinder drive groove, leading to high friction between the two. By designing the needle heel as a right-angled triangular structure, friction is reduced, service life is extended, and the weight of the crochet hook itself is reduced, thus lowering knitting costs.

[0010] The heel is a square structure with a side length 'a' of 2.5-3.3 mm. Most existing heels are rectangular, with dimensions of 3mm-5mm, resulting in a large contact area with the needle cylinder drive groove and thus high friction. By redesigning the heel dimensions, the area is reduced by half, lowering the contact surface and reducing friction and hook weight.

[0011] The thickness K of the hook body is 0.6-1.3mm, the length Q of the hook body is 100-130mm, and the width H of the hook body is 5-6mm.

[0012] The beneficial effects of this utility model are as follows:

[0013] Easy lint removal: The drain outlet is designed below the gap, and the chamfered R design facilitates the discharge of lint, effectively solving the problem of lint accumulation and ensuring the normal operation of the crochet hook.

[0014] Reduce friction: Designing the needle heel as a right-angled triangle or redesigning it as a square structure of a specific size reduces the contact area with the needle cylinder drive groove, thereby reducing friction and extending the life of the crochet hook.

[0015] Reduced costs: Reducing the weight of the crochet hook itself lowers the cost of knitting and improves economic efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the square structure of the needle heel of this utility model.

[0018] Attached diagram labels: 1. Hook body; 2. Gap; 3. Hook heel; 4. Drain outlet. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] Example 1

[0022] like Figure 1 As shown, this embodiment provides a crochet hook for a jacquard machine, including a crochet hook body 1. The crochet hook body 1 includes a gap 2 and a heel 3. The crochet hook body 1 also includes a drain port 4 located at the bottom of the gap 2. The drain port 4 is located between the gap 2 and the heel 3, and the top of the drain port 4 is connected to the gap 2. The length L of the drain port 4 is 7-10mm, and the depth D of the drain port 4 is 3.65mm.

[0023] The top outer side, top inner side, and bottom inner side of the drain outlet 4 are all chamfered (R). The drain outlet 4, located below the gap 2, facilitates the discharge and cleaning of lint. The chamfered R guides the lint outwards, preventing it from remaining at the bottom of the gap 2. The depth D of the drain outlet 4 is slightly greater than the depth of the gap 2, with a difference of 0.5-1mm, to facilitate lint discharge.

[0024] The distance w between the bottom of the drain outlet 4 and the heel 3 is 3-5mm.

[0025] The needle heel 3 is a right-angled triangle structure, and the tilt angle b on the needle heel 3 is 25-50°. Most existing needle heels 3 are rectangular structures with dimensions of 3mm·5mm, which results in a large contact area with the needle cylinder drive groove, leading to high friction between them. By designing the needle heel 3 as a right-angled triangle structure, friction is reduced, service life is extended, and the weight of the crochet hook itself is reduced, thus lowering knitting costs.

[0026] Example 2

[0027] like Figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the heel 3 is a square structure, and the side length a of the heel 3 is 2.5-3.3mm. Most existing heels 3 are rectangular structures with dimensions of 3mm·5mm, resulting in a large contact area with the syringe drive groove and thus high friction between them. By redesigning the dimensions of the heel 3, the area of ​​the heel 3 is reduced by half compared to the original, reducing the contact area, friction, and hook weight.

[0028] In this utility model, the thickness K of the hook body 1 is 0.6-1.3mm, the length Q of the hook body 1 is 100-130mm, and the width H of the hook body 1 is 5-6mm.

Claims

1. A hook needle for a jacquard machine comprising a hook needle body comprising a gap and a needle butt, characterized in that, The hook body also includes a drain port at the bottom of the gap. The drain port is located between the gap and the heel, and the top of the drain port is connected to the gap. The length L of the drain port is 7-10mm and the depth D of the drain port is 3.65mm. The top of the outer side of the sewage outlet, the top of the inner side of the sewage outlet, and the bottom of the inner side of the sewage outlet are all provided with chamfered R.

2. The crochet hook for a jacquard machine according to claim 1, characterized in that, The distance w between the bottom of the drain outlet and the needle heel is 3-5mm.

3. The crochet hook for a jacquard machine according to claim 2, characterized in that, The heel is a right-angled triangle structure, and the tilt angle b on the heel is 25-50°.

4. The crochet hook for a jacquard machine according to claim 2, characterized in that, The heel has a square structure, and the side length a of the heel is 2.5-3.3 mm.

5. The crochet hook for a jacquard machine according to any one of claims 1-4, characterized in that, The thickness K of the hook body is 0.6-1.3mm, the length Q of the hook body is 100-130mm, and the width H of the hook body is 5-6mm.

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