A thread clamping mechanism and wireless head thread trimming device for a flat knitting machine

Abstract

The utility model discloses a clamping thread mechanism and wireless head thread cutting device of horizontal machine, including the thread hooker and the thread clamp, the thread hooker includes two first thread hook arms, and the front end of first thread hook arm is provided with first hook head part, and the clearance is formed between two first thread hook arms, the thread clamp includes first thread clamp arm, and first thread clamp arm is located at the clearance between two first thread hook arms, and can move back and forth at the clearance, the front end of thread clamp is provided with first clamping block, and the front end of first clamping block is provided with recess part, the utility model discloses through installing the clamping block of rubber material at the front end of first thread clamp arm, and the cooperation with two first hook head parts, can effectively hold the yarn, prevents the yarn from producing the skid relaxation, ensures that the scissors can stably and effectively carry out the thread cutting action.

Description

Technical Field

[0001] This utility model relates to flat knitting machine equipment, and more specifically, to a thread clamping mechanism for a flat knitting machine, and also to a thread-cutting device for a flat knitting machine having the thread clamping mechanism. Background Technology

[0002] Traditional flat knitting machines (such as glove machines) create loose threads on textiles during the knitting process, requiring manual trimming, which results in low production efficiency.

[0003] Chinese invention patent application CN116815403A discloses a scissor device for a glove machine, which features a horizontally movable scissor device mounted on a crossbeam, thus solving the problem of thread ends remaining on the outer surface of gloves in existing glove machines. Chinese utility patent CN 222390014U discloses a thread-free clipping device for a flat knitting machine, which also employs a horizontally movable scissor device, similarly solving the aforementioned technical problem.

[0004] During the yarn cutting process, the yarn needs to be clamped. A hook is used to pull out the yarn, and then a clamping arm is used to clamp the pulled-out yarn. After clamping, the yarn can be cut with scissors.

[0005] However, when clamping the yarn, slippage can easily occur between the yarn and the clamping arm and hook, resulting in the yarn not being able to be clamped tightly. When cutting the yarn, the yarn is prone to loosening, making it impossible to perform the cutting operation normally.

[0006] Therefore, a new wire clamping mechanism is needed to solve this problem. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a wire clamping mechanism and a wire cutting device for a flat knitting machine.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A thread clamping mechanism for a flat knitting machine includes a thread hook and a thread clamp. The thread hook includes two first thread hook arms, each with a first hook head at its front end. A gap is formed between the two first thread hook arms. The thread clamp includes a first thread clamping arm, which is located in the gap between the two first thread hook arms and is capable of moving back and forth in the gap. A first clamping block is provided at the front end of the thread clamp, and a recess is provided at the front end of the first clamping block.

[0010] The present invention is further configured such that the first clamping block is made of a rubber-based material.

[0011] The present invention is further provided with a protrusion on one side of the two first hook heads facing each other, and the protrusion is smoothly transitioned to the first hook arm.

[0012] The present invention is further configured such that the distance between the two protrusions is less than the width of the first clamping block, and the first clamping block can extend between the two protrusions and press against each other.

[0013] The present invention is further configured such that the two first hook arms are arranged in parallel, the width of the gap is greater than the width of the first clamping block, and the distance between the two protrusions is less than the width of the first clamping block.

[0014] The present invention is further configured such that the wire clamp also includes a second wire clamping arm, the front end of the first wire clamping arm is provided with a second clamping block, and the front end of the second clamping block is provided with a recessed portion.

[0015] The present invention is further configured such that the second clamping arm is arranged parallel to the first clamping arm, wherein the first hooking arm is located between the first clamping arm and the second clamping arm.

[0016] The present invention is further configured such that the second clamping block is made of a rubber-based material.

[0017] The present invention is further configured such that the hook device includes a second hook arm, the front end of which is provided with a second hook head; and an accommodating space is formed between the second hook arm and the two first hook arms.

[0018] This utility model also provides a wire-cutting device for a flat knitting machine, including the wire clamping mechanism of the flat knitting machine as described above, and scissors, which are located in the accommodating space between the second hook arm and the two first hook arms, for cutting the thread.

[0019] In summary, this utility model has the following beneficial effects:

[0020] By installing a rubber clamping block at the front end of the first clamping arm, which works in conjunction with the two first hook heads, the yarn can be effectively clamped, preventing the yarn from slipping and loosening, and ensuring that the scissors can perform the cutting action stably and effectively.

[0021] By forming protrusions on the inner sides of the two first hook heads, the first clamping block can extend between the two protrusions along the smoothly transitioning inclined surface. The two sides of the first clamping block can press against the protrusions. The elastic deformation of the material of the first clamping block itself presses against the surface of the protrusions, thereby stably clamping the yarn. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the first structure in this embodiment;

[0023] Figure 2 This is the clamping state of the first structural schematic diagram in this embodiment;

[0024] Figure 3 This is a schematic diagram of the second structure in this embodiment;

[0025] Figure 4 This is a schematic diagram of the third structure in this embodiment;

[0026] Figure 5 This is an exploded view of the wire clamping mechanism of a flat knitting machine in this embodiment;

[0027] Figure 6 This is a schematic diagram of the structure of a wireless head cutting device for a flat knitting machine in this embodiment.

[0028] Reference numerals: hook 1; first hook arm 11; first hook head 111; protrusion 112; gap 12; second hook arm 13; second hook head 131; hook clamp 2; first clamp arm 21; first clamp block 211; second clamp arm 22; second clamp block 221; recess 23; scissors 3. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] This embodiment discloses a wire clamping mechanism for a flat knitting machine, referring to... Figures 1-6 As shown, it includes a hook 1 and a clamp 2. The hook 1 includes two first hook arms 11. A first hook head 111 is provided at the front end of the first hook arm 11. The two first hook arms 11 are roughly parallel to each other and a gap 12 is formed between the two first hook arms 11.

[0031] Reference Figure 1 As shown, the wire clamp 2 includes a first wire clamping arm 21, which is located at the gap 12 between the two first hook arms 11 and can move back and forth at the gap 12.

[0032] A first clamping block 211 is fixedly installed at the front end of the first clamping arm 21. The first clamping block 211 is made of rubber material and has a certain elasticity and anti-slip effect.

[0033] When the flat knitting machine needs to cut the yarn, the yarn hook 1 can hook the yarn and restrict it at the position of the first hook head 111. Then the yarn clamp 2 extends forward, and the first clamping block 211 at the front end of the first clamping arm 21 extends between the two first hook heads 111 to clamp and restrict the yarn, thereby making it easier to cut the yarn.

[0034] The front end of the first clamping block 211 is also pre-processed with an arc-shaped recess 23. During the clamping process, the yarn can be confined within the range of the recess 23, improving the stability of the clamping.

[0035] Furthermore, a protrusion 112 is provided on one side opposite to the two first hook heads 111. The protrusion 112 is integrally formed with the first hook head 111, forming a state that protrudes inward toward the gap 12. There is a smooth transition between the protrusion 112 and the first hook arm 11, which can generally be achieved by an inclined transition using a slope.

[0036] Reference Figure 1 As shown, the width of the first clamping block 211 is a, and the distance between the two protrusions 112 is less than the width a of the first clamping block 211.

[0037] Specifically, the two first hook arms 11 are arranged in parallel, and the width of the gap 12 is greater than the width a of the first clamping block 211, so that the first clamping block 211 can move smoothly between the two first hook arms 11. The distance between the two protrusions 112 is smaller than the width of the first clamping block 211, which can improve the clamping effect on the yarn.

[0038] Reference Figure 1 , Figure 2 As shown, during the movement of the yarn clamp 2 towards the front end, the first clamping block 211 moves synchronously with the yarn clamp 2. The first clamping block 211 can extend between the two protrusions 112 along the smoothly transitioning inclined surface, and the two sides of the first clamping block 211 can press against the protrusions 112. The elastic deformation of the material of the first clamping block 211 itself, and the mutual pressing with the surface of the protrusions 112, can stably clamp the yarn.

[0039] Furthermore, referring to Figure 3 As shown, the wire clamp 2 in this embodiment also includes a second wire clamping arm 22. A second clamping block 221 is fixedly installed at the front end of the first wire clamping arm 21. The second clamping block 221 is also made of rubber material, which has a certain elasticity and anti-slip properties, and can assist in clamping and limiting the wire during the clamping process.

[0040] The second clamping arm 22 is arranged parallel to the first clamping arm 21, with one of the first hooking arms 11 located between the first clamping arm 21 and the second clamping arm 22, as shown in the figure. Figure 3The yarns are arranged in a specific configuration. The front end of the second clamping block 221 also has an arc-shaped recess 23, which can limit the clamped yarns. When the first clamping block 211 extends between the two first hook heads 111, the first clamping block 211 and the protrusion 112 generate a squeezing force; the second clamping block 221 can form a limit on the other side of the first hook head 111 to provide additional clamping.

[0041] Reference Figure 3 As shown, the width between the first clamping block 211 and the second clamping block 221 is b, and the distance of this width b is greater than the width of the first clamping arm 21 and less than the width of the first hook head 111, so that the clamping can be achieved by the compression of the first clamping block 211, the second clamping block 221 and the first hook head 111.

[0042] During the clamping process, the second clamping arm 22 and the first clamping arm 21 extend forward synchronously relative to the hook 1. The yarn can be clamped between the two first hook heads 111 and the first clamping block 211, or between the first clamping block 211, the first hook head 111 and the second clamping block 221, forming a multi-clamping state, which can improve the clamping effect on the yarn.

[0043] Furthermore, referring to Figures 4-6 As shown, in this embodiment, the hook 1 further includes a second hook arm 13, and a second hook head 131 is provided at the front end of the second hook arm 13. When hooking the line, the second hook head 131 and the two first hook heads 111 work together to hook the line.

[0044] A receiving space is formed between the second hook arm 13 and the two first hook arms 11, and scissors 3 can be installed in the receiving space to cut the clamped yarn.

[0045] This embodiment also discloses a wireless head-cutting device for a flat knitting machine, referring to... Figure 5 , Figure 6 As shown, the device includes the thread clamping mechanism of the flat knitting machine as described above, and also includes scissors. Scissors 3 are installed in the accommodating space between the second hook arm 13 and the two first hook arms 11, and are used to cut the thread. The operation of the scissors 3 and other driving structures are not improvements of this solution and can be referred to in the prior art; therefore, they will not be described in detail in this embodiment.

[0046] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A thread gripper mechanism for a flat knitting machine, characterized in that, The device includes a hook (1) and a clamp (2). The hook (1) includes two first hook arms (11), each with a first hook head (111) at its front end. A gap (12) is formed between the two hook arms (11). The clamp (2) includes a first clamp arm (21), which is located in the gap (12) between the two hook arms (11) and can move back and forth in the gap (12). A first clamping block (211) is provided at the front end of the clamp (2), and a recess (23) is provided at the front end of the first clamping block (211).

2. Gripper mechanism of a flat knitting machine according to claim 1, characterized in that The first clamping block (211) is made of rubber.

3. Gripper mechanism of a flat knitting machine according to claim 1, characterized in that The two first hook heads (111) have protrusions (112) on opposite sides, and the protrusions (112) are smoothly transitioned to the first hook arm (11).

4. Gripper mechanism of a flat knitting machine according to claim 3, characterized in that The distance between the two protrusions (112) is less than the width of the first clamping block (211), which can extend between the two protrusions (112) and press against each other.

5. Gripper mechanism of a flat knitting machine according to claim 3, characterized in that Two first hook arms (11) are arranged in parallel, the width of the gap (12) is greater than the width of the first clamping block (211), and the distance between the two protrusions (112) is less than the width of the first clamping block (211).

6. Gripper mechanism of a flat knitting machine according to claim 3, characterized in that The wire clamp (2) further includes a second wire clamping arm (22), and a second clamping block (221) is provided at the front end of the first wire clamping arm (21), and a recess (23) is provided at the front end of the second clamping block (221).

7. The wire clamping mechanism of the flat knitting machine according to claim 6, characterized in that, The second clamping arm (22) is arranged parallel to the first clamping arm (21), wherein the first hook arm (11) is located between the first clamping arm (21) and the second clamping arm (22).

8. The wire clamping mechanism of the flat knitting machine according to claim 6, characterized in that, The second clamping block (221) is made of rubber.

9. Gripper mechanism of a flat knitting machine according to any of claims 1 to 8, characterized in that The hook (1) further includes a second hook arm (13), and a second hook head (131) is provided at the front end of the second hook arm (13); an accommodating space is formed between the second hook arm (13) and the two first hook arms (11).

10. A wireless thread trimming device for a flat knitting machine, characterized by The flat knitting machine includes the thread clamping mechanism as described in claim 9, and also includes scissors (3), which are located in the accommodating space between the second hook arm (13) and the two first hook arms (11) for cutting the thread.

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