Broken yarn clamping device for circular knitting machine

Abstract

The utility model discloses a broken line clamping device for a circular knitting machine, which relates to the technical field of circular knitting machines and comprises a mounting frame arranged in the circular knitting machine, a supporting rod is fixedly arranged at the upper end in the mounting frame, a supporting roller is fixedly sleeved on the rod wall of the supporting rod, a guide groove is arranged on the pipe wall of the supporting roller, and a rotating groove is arranged at the lower end of the inner wall of the guide groove. A transverse rod is fixedly arranged on the inner wall of the rotating groove, the rod wall of the transverse rod is rotationally sleeved with a clamping hook, a springback thread hooking mechanism is arranged between the clamping hook and the inner wall of the rotating groove, and a springback extrusion mechanism is arranged at the upper end of the inner wall of the guide groove. According to the supporting roller, the guide groove, the rotating groove, the cross rod, the clamping hook, the limiting plate and the springback thread hooking mechanism, when the yarn is broken, the clamping hook rebounds rapidly and is inserted into the yarn, and therefore the broken yarn is positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of large circular knitting machines, in particular to a wire breaking clamping device for large circular knitting machines. Background Art

[0002] The circular knitting machine, also known as the circular weft knitting machine, is a machine widely used in the knitting industry. It uses the organic arrangement and combination of knitting needles and triangles to weave various new fabrics. In order to quickly clamp the broken thread during the use of the circular knitting machine, a clamping device is required.

[0003] After searching, the patent number CN220520769U discloses a broken yarn clamping device for a large circular knitting machine. The device uses the lever principle and the smaller tension of the yarn to lift the counterweight iron block away from the electromagnet. When the yarn breaks, the counterweight iron block firmly clamps the broken yarn under the action of gravity and the attraction of the electromagnet.

[0004] However, when the yarn breaks, the counterweight iron block needs to overcome the gravity of the end of the lever away from the electromagnet before it can fall, resulting in a certain falling time for the counterweight iron block. When the yarn breaks, the retraction speed is too fast and the yarn cannot be stably clamped. Utility Model Content

[0005] In view of the above problems existing in the existing broken wire clamping device for large circular knitting machines, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a broken wire clamping device for a large circular knitting machine, which solves the problem that when the yarn breaks, the counterweight iron block needs to overcome the gravity of the end of the tilting rod away from the electromagnet before it can fall, resulting in a certain falling time for the counterweight iron block and the inability to clamp the yarn in time.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A broken wire clamping device for a large circular knitting machine comprises a mounting frame arranged inside the large circular knitting machine, a support rod is fixedly arranged at the upper end of the mounting frame, a support roller is fixedly sleeved on the rod wall of the support rod, a guide groove is opened on the tube wall of the support roller, a rotating groove is opened on the lower end of the inner wall of the guide groove, a cross bar is fixedly arranged on the inner wall of the rotating groove, a hook is rotatably sleeved on the rod wall of the cross bar, and a rebound wire hooking mechanism is arranged between the hook and the inner wall of the rotating groove;

[0009] A rebound extrusion mechanism is provided at the upper end of the inner wall of the guide groove.

[0010] Preferably, the rebound hooking mechanism comprises a driving wheel, the outer wall of the driving wheel is rotatably connected to a connecting frame, a telescopic rod is fixedly provided between the connecting frame and the inner wall of the rotating groove, and a first spring is sleeved on the sleeve end of the telescopic rod.

[0011] Preferably, the rebound extrusion mechanism comprises a pressure rod, a strip hole is provided inside the pressure rod, a sliding rod is slidably penetrated in the strip hole, and a second spring is fixed between the rod wall of the sliding rod and the inner wall of the strip hole.

[0012] Preferably, a limiting plate is fixedly provided at the bottom of the inner wall of the rotating groove, and the limiting plate is in contact with and connected to a side of the hook away from the driving wheel.

[0013] Furthermore, the mounting frame is a U-shaped mounting frame, and a plurality of connecting bolts are threadedly passed through the bottom of the mounting frame.

[0014] Preferably, the guide groove is a spiral guide groove.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] The utility model is provided with supporting rollers, guide grooves, rotating grooves, cross bars, hooks, limiting plates and rebounding thread hooking mechanisms. When the yarn is broken, the hooks rebound quickly and insert into the inside of the yarn, so as to position the broken yarn.

[0017] The utility model is provided with a guide groove and a rebound extrusion mechanism, so that when the hook rebounds and hooks into the inside of the yarn, the pressure rod can squeeze the yarn, thereby further improving the clamping and positioning effect of the yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the top view of the support rod and the support roller of the utility model;

[0021] Figure 3 For the utility model Figure 1 A magnified schematic diagram of part A.

[0022] Description of reference numerals:

[0023] 1. Mounting frame; 2. Support rod; 3. Support roller; 4. Cross bar; 5. Hook; 6. Push wheel; 7. Connecting frame; 8. Telescopic rod; 9. First spring; 10. Pressure rod; 11. Sliding rod; 12. Second spring; 13. Limiting plate; 14. Connecting bolt. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model embodiment discloses a wire breaking clamping device for a circular knitting machine.

[0026] The utility model provides Figure 1-3 The shown broken wire clamping device for a large circular knitting machine includes a mounting frame 1 arranged inside the large circular knitting machine, the mounting frame 1 is a U-shaped mounting frame, and a plurality of connecting bolts 14 are threadedly penetrated at the bottom of the mounting frame 1, a support rod 2 is fixedly provided at the upper end of the interior of the mounting frame 1, a support roller 3 is fixedly sleeved on the rod wall of the support rod 2, a guide groove is opened on the tube wall of the support roller 3, the guide groove is a spiral guide groove, a rotating groove is opened at the lower end of the inner wall of the guide groove, a cross bar 4 is fixedly provided on the inner wall of the rotating groove, a hook 5 is rotatably sleeved on the rod wall of the cross bar 4, a rebound wire hooking mechanism is provided between the hook 5 and the inner wall of the rotating groove, the rebound wire hooking mechanism includes a driving wheel 6, the outer wall of the driving wheel 6 is rotatably connected with a connecting frame 7, a telescopic rod 8 is fixedly provided between the connecting frame 7 and the inner wall of the rotating groove, a first spring 9 is sleeved on the sleeve end of the telescopic rod 8, a limiting plate 13 is fixedly provided on the bottom of the inner wall of the rotating groove, and the limiting plate 13 is in contact with and connected with the side of the hook 5 away from the driving wheel 6.

[0027] Before the circular knitting machine is used, the mounting frame 1 is installed inside the circular knitting machine 1 by connecting the bolts 14, and the yarn is transmitted outward through the guide groove spirally. At this time, under the action of the yarn tension, the yarn pushes the arc surface of the hook 5, so that the hook 5 squeezes the pushing wheel 6, and the pushing wheel 6 squeezes the telescopic rod 8 and the first spring 9. At this time, the yarn can be stably transmitted. When the yarn breaks, the yarn tension disappears. At this time, under the elastic recovery of the first spring 9, the hook 5 rotates around the cross bar 4. At this time, the tip of the hook 5 is inserted into the retracted yarn to quickly position the yarn.

[0028] In order to enable the auxiliary hook 5 to quickly clamp and position the yarn when the yarn breaks, Figure 1 and Figure 3 As shown, a rebound extrusion mechanism is provided at the upper end of the inner wall of the guide groove, and the rebound extrusion mechanism includes a pressure rod 10, a strip hole is opened inside the pressure rod 10, a slide rod 11 is slidably penetrated in the strip hole, and a second spring 12 is fixed between the rod wall of the slide rod 11 and the inner wall of the strip hole.

[0029] When the yarn is transmitted and the hook 5 is pushed, the pressure rod 10 can be pushed by the tension during yarn transmission, so that the pressure rod 10 squeezes the second spring 12 under the sliding of the slide bar 11. When the yarn breaks, the pressure rod 10 is not squeezed by the yarn and is close to the inner wall of the guide groove under the elastic force of the second spring 12. At this time, the pressure rod 10 can squeeze the yarn, and the clamping of the hook 5 can stably limit the yarn, thereby avoiding the yarn from shrinking too quickly and requiring the yarn to be rethreaded.

[0030] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wire breaking clamping device for a circular knitting machine, comprising a mounting frame (1) arranged inside the circular knitting machine, characterized in that: A support rod (2) is fixedly provided at the upper end of the mounting frame (1); a support roller (3) is fixedly sleeved on the rod wall of the support rod (2); a guide groove is provided on the tube wall of the support roller (3); a rotation groove is provided at the lower end of the inner wall of the guide groove; a cross bar (4) is fixedly provided on the inner wall of the rotation groove; a hook (5) is rotatably sleeved on the rod wall of the cross bar (4); and a rebound hooking mechanism is provided between the hook (5) and the inner wall of the rotation groove; A rebound extrusion mechanism is provided at the upper end of the inner wall of the guide groove.

2. The wire breaking clamping device for a circular knitting machine according to claim 1, characterized in that: The rebound hooking mechanism comprises a driving wheel (6), the outer wall of the driving wheel (6) is rotatably connected to a connecting frame (7), a telescopic rod (8) is fixedly provided between the connecting frame (7) and the inner wall of the rotating groove, and a first spring (9) is sleeved on the sleeve end of the telescopic rod (8).

3. The wire breaking clamping device for a circular knitting machine according to claim 1, characterized in that: The rebound extrusion mechanism comprises a pressure rod (10), a strip hole is provided inside the pressure rod (10), a slide rod (11) is slidably inserted into the strip hole, and a second spring (12) is fixedly provided between the rod wall of the slide rod (11) and the inner wall of the strip hole.

4. The wire breaking clamping device for a circular knitting machine according to claim 1, characterized in that: A limiting plate (13) is fixedly provided at the bottom of the inner wall of the rotating groove, and the limiting plate (13) is in contact with and connected to a side of the hook (5) away from the driving wheel (6).

5. The wire breaking clamping device for a circular knitting machine according to claim 1, characterized in that: The mounting frame (1) is a U-shaped mounting frame, and a plurality of connecting bolts (14) are threadedly passed through the bottom of the mounting frame (1).

6. The wire breaking clamping device for a circular knitting machine according to claim 1, characterized in that: The guide groove is a spiral guide groove.

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