Yarn releasing device of warp knitting equipment

Abstract

The utility model discloses a yarn releasing device of warp knitting equipment, which comprises a reel and pan heads detachably mounted at two ends of the reel, shaft holes are arranged in the middles of the pan heads, connecting shafts are respectively arranged on end faces of two ends of the reel, and the diameters of the connecting shafts and the shaft holes are both smaller than the diameter of the reel; the pan head is sleeved on the connecting shaft through the shaft hole; the connecting shaft on the outer side of the pan head is further sleeved with a connecting sleeve, at least one clamping mechanism is arranged between the connecting sleeve and the connecting shaft, and after the clamping mechanism is clamped, the connecting sleeve tightly presses the pan head on the end face of the reel. The pan head is tightly pressed on the end face of the reel through the connecting sleeve, equivalently, the pan head is clamped by the connecting sleeve and the reel from the two sides, so that the pan head is more stable and does not shake, a yarn roll is prevented from moving on the reel, and the tension of the yarn is stably controlled; when the yarn roll needs to be replaced, the yarn roll can be replaced simply and conveniently by unfastening the clamping mechanism and withdrawing the connecting sleeve and the pan head from the connecting shaft.

Description

Technical Field

[0001] This utility model relates to the field of warp knitting machine technology, and in particular to a warp knitting equipment yarn feeding device. Background Technology

[0002] Warp knitting is a process where one or more sets of parallel yarns are simultaneously looped onto all the working needles of the machine in the warp direction to form a knitted fabric. The resulting fabric is called a warp-knitted fabric. The machine that performs this type of warp knitting is called a warp knitting machine. A warp knitting machine mainly consists of a knitting mechanism, a guide bar traverse mechanism, a warp feed mechanism, a take-up and pull-out mechanism, and a transmission mechanism.

[0003] In the prior art, the warp feeding mechanism generally includes a spool for holding the yarn roll. The yarn is released and fed to the working needle through the cooperation of the spool and the warp head. In order to prevent the yarn roll from moving around on the spool and to stabilize the yarn tension, the warp head must be locked in a fixed position on the spool and the warp head must not wobble. In the prior art, the warp head is generally locked to the spool along the axial direction by multiple bolts, and they must be locked very tightly. This makes it quite troublesome to change the yarn roll, as each bolt needs to be removed and retightened. Of course, since the bolts need to be frequently unscrewed and screwed in and rotate at high speed with the spool, the bolts are also prone to loosening, causing the warp head to wobble. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a yarn feeding device for warp knitting equipment, which can ensure the stability of the warp head and is easy to disassemble.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a yarn feeding device for warp knitting equipment, comprising a spool and detachable heads mounted at both ends of the spool, wherein the heads have a shaft hole in the middle, characterized in that: connecting shafts are respectively provided on the end faces of both ends of the spool, and the diameters of the connecting shafts and the shaft holes are both smaller than the diameter of the spool; the heads are sleeved on the connecting shafts through the shaft holes; a connecting sleeve is also sleeved on the connecting shaft outside the heads, and at least one snap-fit ​​mechanism is provided between the connecting sleeve and the connecting shaft, wherein after the snap-fit ​​mechanism is tightened, the connecting sleeve presses the heads tightly against the end face of the spool.

[0006] As a preferred embodiment of this utility model, the locking mechanism includes a through hole on the connecting sleeve, a blind hole on the connecting shaft extending radially, a locking rod, a spring, a limiting ring, a first limiting plate, and an adjusting mechanism for adjusting the compression degree of the spring; the spring, the first limiting plate, and the locking rod are all disposed in the blind hole, the first limiting plate is fixedly connected to the outer end of the spring, the inner end of the locking rod is in contact with the first limiting plate, and the outer end of the locking rod extends out of the connecting sleeve from the through hole; the limiting ring is installed in the blind hole and is located outside the first limiting plate; the adjusting mechanism is installed at the outer end of the locking rod.

[0007] As a further preferred embodiment of this utility model, the adjusting mechanism includes a limiting adjusting ring, an adjusting rod, a second limiting plate, and a fixed sleeve; the inner end of the fixed sleeve is fixedly connected to the side wall of the connecting sleeve, and the through hole is located inside the fixed sleeve; the outer end of the locking rod is located in the fixed sleeve; the inner side wall of the outer end of the fixed sleeve is provided with an internal thread, and the outer side wall of the limiting adjusting ring is provided with an external thread, and the limiting adjusting ring and the fixed sleeve are connected by the external thread and the internal thread; the second limiting plate is fixedly connected to the outer end of the locking rod; the inner end of the adjusting rod is fixedly connected to the inner side wall of the limiting adjusting ring and the second limiting plate.

[0008] As a further preferred embodiment of the present invention, the adjustment mechanism further includes an adjustment knob, which is locked to the outer end of the adjustment rod by a screw.

[0009] As a further preferred embodiment of this utility model, the limiting ring is threadedly installed in the blind hole. The threaded installation of the limiting ring in the blind hole facilitates spring replacement; of course, the limiting ring can also be fixedly welded into the blind hole.

[0010] This utility model has the following beneficial effects:

[0011] Compared with existing technologies, the yarn feeding device of this warp knitting equipment uses a connecting sleeve to press the coil head tightly against the end face of the spool. This is equivalent to the connecting sleeve and the spool clamping the coil head from both sides, making the coil head more stable and preventing it from shaking. This avoids the yarn roll moving around on the spool and allows for stable control of the yarn tension. When it is time to replace the yarn roll, simply unplug the clamping mechanism and remove the connecting sleeve and coil head from the connecting shaft to replace the yarn roll. This is simple and convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall main structure of the yarn feeding device of this utility model;

[0013] Figure 2 This is a cross-sectional view of the connecting shaft and connecting sleeve of the yarn feeding device of this utility model;

[0014] Figure 3 This is a partial cross-sectional view of the yarn feeding device of this utility model;

[0015] Figure 4 This utility model relates to a yarn feeding device. Figure 3 A magnified view of a portion at point A.

[0016] Legend:

[0017] 1. Reel; 2. Pan head; 3. Connecting shaft; 4. Connecting sleeve; 5. Blind hole; 6. Spring; 7. First limiting plate; 8. Locking rod; 9. Limiting ring; 10. Through hole; 11. Fixing sleeve; 12. Limiting adjustment ring; 13. Adjusting rod; 14. Second limiting plate; 15. Knob; 16. Screw. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1-4 The yarn feeding device of this warp knitting equipment includes a spool 1 and a coil head 2 detachably mounted on both ends of the spool 1. The coil head 2 has a shaft hole in the middle. A connecting shaft 3 is provided on the end face of both ends of the spool 1. The diameter of the connecting shaft 3 and the shaft hole is smaller than the diameter of the spool 1. The coil head 2 is sleeved on the connecting shaft 3 through the shaft hole. A connecting sleeve 4 is also sleeved on the connecting shaft 3 on the outside of the coil head 2. Two locking mechanisms are symmetrically provided between the connecting sleeve 4 and the connecting shaft 3. After the locking mechanisms are locked, the connecting sleeve 4 presses the coil head 2 tightly against the end face of the spool 1.

[0020] The aforementioned locking mechanism includes a through hole 10 on the connecting sleeve 4, a blind hole 5 on the connecting shaft 3 extending radially, a locking rod 8, a spring 6, a limiting ring 9, a first limiting plate 7, and an adjusting mechanism for adjusting the compression degree of the spring 6. The spring 6, the first limiting plate 7, and the locking rod 8 are all disposed in the blind hole 5. The first limiting plate 7 is fixedly connected to the outer end of the spring 6, the inner end of the locking rod 8 contacts and engages with the first limiting plate 7, and the outer end of the locking rod 8 extends out of the connecting sleeve 4 from the through hole 10. The limiting ring 9 is threadedly installed in the blind hole 5 and is located outside the first limiting plate 7. The adjusting mechanism is installed at the outer end of the locking rod 8.

[0021] The aforementioned adjustment mechanism includes a limiting adjustment ring 12, an adjustment rod 13, a second limiting plate 14, a fixed sleeve 11, and an adjustment knob 15. The inner end of the fixed sleeve 11 is fixedly connected to the side wall of the connecting sleeve 4, and the through hole 10 is located inside the fixed sleeve 11. The outer end of the locking rod 8 is located in the fixed sleeve 11. The inner side wall of the outer end of the fixed sleeve 11 is provided with an internal thread, and the outer side wall of the limiting adjustment ring 12 is provided with an external thread. Typically, the length of the internal thread is much greater than the length of the external thread. The limiting adjustment ring 12 and the fixed sleeve 11 are connected by the external thread and the internal thread. The second limiting plate 14 is fixedly connected to the outer end of the locking rod 8. The inner end of the adjustment rod 13 is fixedly connected to the inner side wall of the limiting adjustment ring 12 and the second limiting plate 14. The adjustment knob 15 is locked to the outer end of the adjustment rod 13 by a screw 16. The second limiting plate 14 is provided to cooperate with the fixed sleeve 11 and the limiting adjustment ring 12. Sometimes, for ease of processing, the fixed sleeve 11 and the limiting adjustment ring 12 are made of a larger size, which may be much larger than the diameter of the locking rod 8. Therefore, it is necessary to set the second limiting plate 14.

[0022] In the above-mentioned yarn feeding device, the blind hole 5 provides a stable installation space for the spring 6, the first limiting plate 7, the locking rod 8 and the limiting ring 9. The spring 6 applies a continuous elastic force to the first limiting plate 7, which drives the locking rod 8 to maintain the outward extension trend. The limiting ring 9 limits the movement trajectory of the locking rod 8 to prevent deviation. Finally, the cooperation of each component provides a stable elastic locking driving force for the device.

[0023] The workers sequentially align the pan head 2 and connecting sleeve 4 onto the connecting shaft 3 outside the reel 1. At this time, the spring 6 in the locking mechanism pushes the first limiting plate 7, causing the locking rod 8 to extend through the through hole 10 and into the inner cavity of the fixed sleeve 11, completing the initial locking and fixing of the two. When the equipment stops, the elastic force of the spring 6 continues to act, ensuring that the connection does not loosen. When the equipment is running and rotating, the centrifugal force causes the locking rod 8 to tend to move outward, further locking the internal thread of the fixed sleeve 11 and the external thread of the limiting adjustment ring 12, enhancing the locking effect between the locking rod 8 and the fixed sleeve 11, even if... Even at high speeds, the engagement remains stable. When adjusting the compression of spring 6, simply tighten or loosen knob 15 to rotate the adjusting rod 13 and locking rod 8 in and out. When disassembling and changing rolls, loosen knob 15 to move adjusting rod 13 outwards until the limit adjusting ring 12 disengages from the internal thread of fixed sleeve 11. This allows locking rod 8 to be pulled out of fixed sleeve 11, releasing the engagement between connecting sleeve 4 and connecting shaft 3. Connecting sleeve 4 and disc head 2 can then be removed from connecting shaft 3, and the used yarn roll core can be removed from roll 1, allowing for the installation of a new yarn roll.

[0024] Compared with existing technologies, the yarn feeding device of this warp knitting equipment uses a connecting sleeve 4 to press the coil head 2 tightly against the end face of the roller 1. This is equivalent to the connecting sleeve 4 and the roller 1 clamping the coil head 2 from both sides, making the coil head 2 more stable and preventing it from shaking. This avoids the yarn roll moving around on the roller 1 and allows for stable control of the yarn tension. When it is time to replace the yarn roll, simply unplug the clamping mechanism and remove the connecting sleeve 4 and the coil head 2 from the connecting shaft 3 to replace the yarn roll. This is simple and convenient.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A yarn feeding device for warp knitting equipment, comprising a spool and two detachable heads mounted on both ends of the spool, wherein the two spools have a shaft hole in the middle, characterized in that: Connecting shafts are provided on the end faces of both ends of the reel, and the diameters of the connecting shafts and the shaft holes are smaller than the diameter of the reel. The disc head is sleeved on the connecting shaft through the shaft hole. A connecting sleeve is also sleeved on the connecting shaft outside the disc head. At least one snap-fit ​​mechanism is provided between the connecting sleeve and the connecting shaft. After the snap-fit ​​mechanism is tightened, the connecting sleeve presses the disc head tightly against the end face of the reel.

2. The yarn feeding device according to claim 1, characterized in that: The locking mechanism includes a through hole on the connecting sleeve, a blind hole on the connecting shaft extending radially, a locking rod, a spring, a limiting ring, a first limiting plate, and an adjusting mechanism for adjusting the spring compression. The spring, the first limiting plate, and the locking rod are all disposed in the blind hole. The first limiting plate is fixedly connected to the outer end of the spring, the inner end of the locking rod is in contact with the first limiting plate, and the outer end of the locking rod extends out of the connecting sleeve from the through hole. The limiting ring is installed in the blind hole and is located outside the first limiting plate. The adjusting mechanism is installed at the outer end of the locking rod.

3. The yarn feeding device according to claim 2, characterized in that: The adjusting mechanism includes a limiting adjusting ring, an adjusting rod, a second limiting plate, and a fixed sleeve; the inner end of the fixed sleeve is fixedly connected to the side wall of the connecting sleeve, and the through hole is located inside the fixed sleeve; the outer end of the locking rod is located in the fixed sleeve; the inner side wall of the outer end of the fixed sleeve is provided with an internal thread, and the outer side wall of the limiting adjusting ring is provided with an external thread, and the limiting adjusting ring and the fixed sleeve are connected by the external thread and the internal thread; the second limiting plate is fixedly connected to the outer end of the locking rod; the inner end of the adjusting rod is fixedly connected to the inner side wall of the limiting adjusting ring and the second limiting plate.

4. The yarn feeding device according to claim 3, characterized in that: The adjustment mechanism also includes an adjustment knob, which is locked to the outer end of the adjustment rod by a screw.

5. The yarn feeding device according to claim 2, characterized in that: The limiting ring is threaded into the blind hole.

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