Yarn unwinding device

Abstract

The utility model belongs to the field of yarn unwinding, and provides a yarn unwinding device which comprises a vertical frame, a vertical plate is arranged on the vertical frame, an unwinding wheel, a pair of guide wheels, a reversing wheel and a yarn clamping mechanism are sequentially arranged on the vertical plate from top to bottom in a rotating mode, and the yarn clamping mechanism comprises a fixing block and a sliding plate which are installed under the reversing wheel respectively. A clamping rod and an L-shaped clamping block are arranged on the fixing block and the sliding plate respectively, the clamping rod and the L-shaped clamping block are oppositely arranged, a clamping hand is arranged below the vertical plate, a connecting base is arranged at one end of the clamping hand, a clamping base is arranged at the other end of the clamping hand, a notch is formed in the upper portion of the connecting base, a guide column is rotationally arranged in the notch, and the clamping base is provided with a pressing rod corresponding to the guide column. The device is small, exquisite and flexible in design, small in occupied area and convenient to operate in a small space, the requirement for a production site is lowered, and the device can flexibly meet the production requirements of small batches and multiple varieties due to the single yarn unwinding function.

Description

Technical Field

[0001] This utility model belongs to the field of yarn unwinding, and particularly relates to a yarn unwinding device. Background Technology

[0002] In textile production, yarn needs to be wound onto bobbins for further processing or sold as a semi-finished product. When proceeding to the next processing stage, the yarn needs to be unwound. Currently, existing yarn unwinding devices are large-scale equipment that can unwind multiple yarns simultaneously, offering high efficiency, but also incurring high purchase costs, requiring significant space, and being unable to unwind individual yarns, making them unsuitable for small-batch production.

[0003] In addition, after the yarn unwinding device finishes unwinding, the cutting action is usually performed directly using a blade. During the cutting process, the upper and lower ends of the cutting position can be clamped, which reduces the cutting quality. At the same time, the cut yarn ends are prone to unraveling and knotting, causing many inconveniences for subsequent textile processes. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a yarn unwinding device, which aims to solve the above problems.

[0005] The present invention adopts the following technical solution:

[0006] The yarn unwinding device includes a frame with a plate on it. From top to bottom, the plate has an unwinding wheel, a pair of guide wheels, a reversing wheel, and a yarn clamping mechanism. The yarn clamping mechanism includes a fixed block and a sliding plate, each mounted directly below the reversing wheel. The fixed block and sliding plate each have a clamping rod and an L-shaped clamping block, which are positioned opposite each other. A gripper is located below the plate, with a connecting seat at one end and a clamping seat at the other. A notch is opened above the connecting seat, and a guide post is rotatably mounted within the notch. A pressure rod is provided on the clamping seat corresponding to the guide post. The plate also has a clamping cylinder for driving the sliding plate. A yarn cutting mechanism is located on the frame opposite the yarn clamping mechanism.

[0007] Furthermore, the tangent mechanism includes a slider slidably mounted on the back of the upright plate. The slider is provided with a connecting plate, and a blade holder is provided facing forward on the connecting plate. The blade holder is provided with a blade, and the blade holder includes a base and a pressure seat. The pressure seat is located on the base, and a placement groove is opened on the base. The blade is placed in the placement groove. A pair of locking screws are inserted into the pressure seat and screwed into the base and locked. The upright plate is also provided with a tangent cylinder for driving the slider to slide, and an adjustment mechanism is also provided on the upright plate.

[0008] Furthermore, the adjustment mechanism includes a slide mounted on the upright plate, a slide seat on the slide, an adjustment wheel on the slide seat, and the adjustment wheel is located between two guide wheels. An adjustment cylinder is provided on the upright plate, and the drive shaft of the adjustment cylinder is connected to the slide seat.

[0009] Furthermore, the upright plate is provided with a seat sleeve, the knife holder is located inside the seat sleeve, and the top of the seat sleeve has a top opening.

[0010] The beneficial effects of this utility model are: 1. This device is compact and flexible in design, occupies a small area, and is easy to operate in small spaces, reducing the requirements for production sites. At the same time, the single yarn unwinding function enables the device to flexibly meet the production needs of small batches and multiple varieties.

[0011] 2. During the cutting process, the clamping mechanism tightly clamps the yarn, ensuring the stability of the yarn during the cutting process and avoiding the problem of reduced cutting quality caused by yarn shaking. Attached Figure Description

[0012] Figure 1 This utility model provides an overall drawing of a yarn unwinding device.

[0013] Figure 2 This utility model provides a schematic diagram of a wire clamping mechanism.

[0014] Figure 3 This utility model provides a schematic diagram of the installation of the connecting plate.

[0015] Figure 4 This utility model provides a schematic diagram of blade installation. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0017] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0018] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0019] Combination Figure 1-2As shown, the yarn unwinding device includes a frame 1, on which a plate 2 is provided. From top to bottom, an unwinding wheel 3, a pair of guide wheels 4, a reversing wheel 5, and a yarn clamping mechanism are rotatably arranged on the plate 2. The yarn clamping mechanism includes a fixing block 6 and a sliding plate 7 respectively installed directly below the reversing wheel 5. The fixing block 6 and the sliding plate 7 are respectively provided with clamping rods 8 and L-shaped clamping blocks 9, and the clamping rods 8 and L-shaped clamping blocks 9 are arranged opposite to each other. A gripper 10 is provided below the plate 2. One end of the gripper 10 is provided with a connecting seat 11, and the other end is provided with a clamping seat 12. A notch 13 is opened above the connecting seat 11, and a guide post 14 is rotatably arranged in the notch 13. A pressure rod 15 is provided on the clamping seat 12 corresponding to the guide post 14. A clamping cylinder 16 for driving the sliding plate to move is also provided on the plate 2. A yarn cutting mechanism is provided on the frame 1 directly opposite the yarn clamping mechanism.

[0020] In textile production, yarn needs to be wound onto bobbins for further processing or sold as a semi-finished product. This device can be used to unwind the yarn during the next processing stage.

[0021] In the above structure, one end of the gripper is provided with a connecting seat and the other end is provided with a clamping seat. The connecting seat has a notch at the top, and a guide post is rotatably arranged in the notch. The clamping seat has a fixing groove at the top, and the pressure rod is arranged in the fixing groove. A part of the pressure rod protrudes from the fixing groove and is positioned towards the guide post.

[0022] When using this device to unwind yarn, first, the yarn reel is installed on the unwinding reel as required. Then, the yarn end on the yarn reel is sequentially passed around the upper and lower guide wheels, the reversing wheel, and then through the gap between the clamping rod and the L-shaped clamping block. After that, the yarn end passes through the guide post and exits through the notch. Finally, the yarn end is fixed in the corresponding position at the next station. The next station pulls the yarn, and the unwinding reel rotates to achieve the unwinding action.

[0023] When the yarn is unwound, the clamping mechanism clamps the upper and lower ends of the yarn at the cutting position, and the cutting mechanism completes the cutting action. Specifically: when the clamping mechanism clamps the yarn, the clamping cylinder drives the slide plate to move towards the clamping rod until the clamping rod and L-shaped clamping block clamp the corresponding position of the yarn. At the same time, the gripper also starts to work, the connecting seat and clamping seat move in the same direction, and the guide post and pressure rod also clamp the yarn. Finally, the cutting mechanism completes the cutting action, and the clamping rod, L-shaped clamping block, guide post, and pressure rod all still clamp the upper and lower ends of the yarn, awaiting the next step of processing by the operator. After the yarn is cut, the clamping mechanism still clamps the upper and lower ends of the yarn, which can prevent the yarn ends from unraveling and knotting after cutting.

[0024] As a preferred structure, such as Figure 1 , Figure 3-4The tangent mechanism includes a slider 17 slidably mounted on the back of the upright plate 2. The slider 17 is provided with a connecting plate 18, and a blade holder is provided facing forward on the connecting plate 18. The blade holder is provided with a blade 20. The blade holder includes a base 191 and a pressure seat 192. The pressure seat 192 is located on the base 191. The base has a placement groove 21, in which the blade 20 is placed. A pair of locking screws (not shown in the figure) are inserted into the pressure seat 192. The locking screws are screwed into the base 191 and locked. The upright plate 2 is also provided with a tangent cylinder 22 for driving the slider to slide. The upright plate is also provided with an adjustment mechanism.

[0025] Once the yarn is clamped by the yarn clamping mechanism, the cutting cylinder drives the slider to move, and the connecting plate drives the blade holder to move toward the yarn until the blade cuts the yarn.

[0026] In this embodiment, the cutter holder is located between the clamping rod and the guide post. When the yarn is cut using the cutting mechanism, the clamping mechanism clamps the upper and lower ends of the yarn at the cutting position, ensuring the stability of the yarn during the cutting process and avoiding the problem of reduced cutting quality caused by yarn swaying.

[0027] In this structure, the blade is replaceable. When the blade needs to be replaced, first loosen the locking screw so that the pressure seat no longer presses down on the blade. Remove the old blade, then place the new blade into the placement slot as required. Finally, tighten the locking screw until the base and pressure seat clamp the blade. This completes the blade replacement, and the entire replacement process is relatively simple.

[0028] Additionally, the upright plate 2 is provided with a seat sleeve 23, and the blade holder is located inside the seat sleeve 23. The top of the seat sleeve 23 has a top opening 24. In actual operation, the blade can be observed and replaced through the top opening.

[0029] Furthermore, as a preferred structure, such as Figure 1-2 The adjustment mechanism includes a slide 25 mounted on the upright plate 2, a slide seat 26 on the slide 25, an adjustment wheel 27 on the slide seat 26, and the adjustment wheel 27 is located between two guide wheels 4. An adjustment cylinder 28 is provided on the upright 1, and the drive shaft of the adjustment cylinder 28 is connected to the slide seat 26.

[0030] In order to improve the control accuracy of yarn tension during the unwinding process, an adjustment mechanism is also provided on the upright frame to further improve the stability of the unwinding process.

[0031] As the yarn passes over the upper and lower guide rollers, it also passes over the adjusting roller. When the adjusting mechanism is used to adjust the yarn in the unwinding state, the adjusting cylinder adjusts the position of the adjusting roller by driving the slide block to move, thereby realizing the adjustment and control of the yarn tension.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 unreeving device characterized by: The yarn unwinding device comprises a stand, a vertical plate arranged on the stand, an unwinding wheel, a pair of guide wheels, a reversing wheel and a yarn clamping mechanism arranged in sequence from top to bottom on the vertical plate, the yarn clamping mechanism comprises a fixed block and a sliding plate arranged below the reversing wheel respectively, the fixed block and the sliding plate are respectively provided with a clamping rod and an L-shaped clamping block, the clamping rod and the L-shaped clamping block are oppositely arranged, a clamping hand is arranged below the vertical plate, one end of the clamping hand is provided with a connecting seat, the other end of the clamping hand is provided with a clamping seat, a notch is formed in the upper part of the connecting seat, a guide column is rotatably arranged in the notch, a pressing rod is arranged on the clamping seat corresponding to the guide column, a clamping cylinder for driving the sliding plate to move is further arranged on the vertical plate, and a cutting mechanism is arranged on the stand opposite to the yarn clamping mechanism.

2. The yarn dispensing device of claim 1, wherein: The cutting mechanism comprises a sliding block slidingly arranged on the back of the vertical plate, a connecting plate is arranged on the sliding block, a cutter seat is arranged on the connecting plate towards the front, a cutter blade is arranged on the cutter seat, the cutter seat comprises a base and a pressing seat, the pressing seat is arranged on the base, a placing groove is formed in the base, the cutter blade is placed in the placing groove, a pair of locking screws are arranged in the pressing seat, the locking screws are screwed into the base and locked, a cutting cylinder for driving the sliding block to slide is further arranged on the vertical plate, and an adjusting mechanism is further arranged on the vertical plate.

3. The yarn dispensing apparatus of claim 2, wherein: The adjusting mechanism comprises a sliding frame arranged on the vertical plate, a sliding seat is arranged on the sliding frame, an adjusting wheel is arranged on the sliding seat, and the adjusting wheel is arranged between the two guide wheels, an adjusting cylinder is arranged on the stand, and the driving shaft of the adjusting cylinder is connected with the sliding seat.

4. The yarn dispensing device of claim 3, wherein: A seat sleeve is arranged on the vertical plate, the cutter seat is arranged in the seat sleeve, and a top opening is formed in the top of the seat sleeve.

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