A wire reversing machine with automatic wire cutting structure

Abstract

This utility model relates to the field of textile machinery technology, specifically to a yarn rewinding machine with an automatic yarn cutting structure, including a yarn rewinding machine body; a yarn cutting assembly installed inside the yarn rewinding machine body, used to cut the yarn connected to the wound yarn tube; and a clamping assembly installed inside the yarn cutting assembly, used to cooperate with the yarn cutting assembly to complete the yarn cutting. Compared with the prior art, this application achieves linear cutting of the cutter head through hydraulic drive, and the double limit structure ensures accurate and stable cutting trajectory, avoiding the problem of rotational cutting deviation; the clamping assembly and the yarn cutting assembly are linked, with a "clamp before cutting" function, ensuring the fixation of the yarn during the cutting process, improving cutting accuracy and efficiency, with a high degree of automation and a long service life.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and in particular to a rewinding machine with an automatic thread cutting structure. Background Technology

[0002] In the textile industry, the yarn rewinding machine is one of the key pieces of equipment. It plays an important role in transferring yarn from one yarn tube to another to meet the requirements of subsequent textile processes for yarn arrangement, tension, etc. During the yarn rewinding process, the efficiency and quality of the yarn cutting step directly affect the smoothness of the entire production process and the quality of the final product.

[0003] Traditional rewinding machines typically use manual cutting or simple rotary cutting devices for thread cutting. Manual cutting is extremely inefficient, requiring operators to spend a significant amount of time and energy on the task. This not only increases labor costs but also slows down the entire rewinding process, making it difficult to meet the demands of large-scale, high-efficiency production. While simple rotary cutting devices improve cutting efficiency to some extent, they have many drawbacks. Rotary cutting is prone to deviations during operation, and the unstable cutting trajectory makes it impossible to precisely control the cutting position, resulting in uneven cuts that affect the performance of the yarn.

[0004] Currently, most yarn rewinding machines on the market exhibit a clear separation between the yarn cutting and clamping operations. Few machines can perform clamping and cutting simultaneously. Traditional rewinding machines require operators or additional mechanical devices to clamp and secure the yarn before cutting. Once clamping is complete, the cutting device is activated. In this process, clamping and cutting are performed sequentially with a significant time interval. In large-scale, continuous textile production, this time waste accumulates, extending the production cycle of the entire rewinding process and reducing efficiency. Furthermore, when the yarn is not effectively clamped, it is prone to shaking or displacement during cutting due to its free state, leading to inaccurate cutting positions and uneven cuts. This can cause serious quality problems for textile products with high requirements for yarn length and cut quality, such as high-end fabrics and fine textiles. Uneven cuts not only affect the subsequent use of the yarn but may also cause breakage and fraying in later processes, increasing the defect rate and reducing the overall product quality. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a rewinding machine with an automatic wire cutting structure to solve the problem of low efficiency of manual wire cutting in traditional rewinding machines.

[0006] To achieve the above objectives, this utility model provides a rewinding machine with an automatic wire cutting structure, comprising: a rewinding machine body;

[0007] A yarn cutting assembly is installed inside the rewinding machine body and is used to cut the yarn connected to the wound yarn tube.

[0008] A clamping assembly is installed inside the yarn cutting assembly and is used to cooperate with the yarn cutting assembly to cut the yarn.

[0009] Preferably, the rewinding machine body includes a fixed plate, a first fixed block, a slide rod, a threaded rod, and a first slider. Two slide rods are symmetrically fixedly installed on one side of the fixed plate. The slide rods and the threaded rods are fixedly installed between the two first fixed blocks. The first slider is slidably installed on the slide rods and the threaded rods. A connecting block is fixedly installed on one side of the first slider. A groove is provided on the fixed plate, and the connecting block is slidably installed in the groove.

[0010] Preferably, the cutting assembly includes a housing mounted on one side of the connecting block, a support rod slidably mounted inside the housing, a cutting head mounted on one end of the support rod, a hydraulic cylinder mounted inside the housing, and the output end of the hydraulic cylinder connected to one side of the support rod.

[0011] Preferably, two first limiting blocks are symmetrically fixedly installed inside the housing, one end of the support rod is slidably installed between the two first limiting blocks, and second sliders are symmetrically installed on both sides of the support rod. A plurality of second limiting blocks are fixedly installed on one side of the interior of the housing, and one side of the second limiting block abuts against one side of the second slider.

[0012] Preferably, the clamping assembly includes a plurality of clamping arms rotatably mounted inside the housing, a support block is fixedly mounted on one side of each clamping arm, and a roller is rotatably mounted on the other side of each clamping arm, the roller abutting against one side of the second slider.

[0013] Preferably, the support block has a placement cavity, a clamping block is slidably installed in the placement cavity, a plurality of return springs are fixedly installed on one side of the clamping block, and the side of the return springs away from the clamping block is fixedly installed on one side of the placement cavity.

[0014] Preferably, the support block is L-shaped, and a sliding groove is provided on one side of the long side of the support block. A sliding block is fixedly installed on one side of the clamping block, and the sliding block is slidably installed in the sliding groove.

[0015] Preferably, a plurality of friction grooves are formed on one side of the clamping block.

[0016] Preferably, a rotating shaft is fixedly installed in the middle of the clamping arm, and a plurality of second fixing blocks are fixedly installed on one side of the housing, with the rotating shaft rotatably installed on one side of the second fixing blocks.

[0017] The beneficial effects of this utility model are:

[0018] 1. This type of rewinding machine with an automatic thread cutting structure is equipped with a thread cutting component. A hydraulic cylinder drives a support rod to move the cutter head in a linear cutting motion. Combined with a double-guided limiting structure of the first and second limit blocks, the accuracy and stability of the cutting trajectory are ensured, effectively avoiding the deviation problems that may occur with traditional rotary cutting. Power transmission is achieved through the sliding contact between the second slider and the roller shaft, greatly reducing the wear rate of moving parts and extending the service life of the equipment. The rigid structure of the support rod combined with the hydraulic drive provides sufficient cutting force, easily handling the cutting needs of yarns of different materials and thicknesses. At the same time, the buffering characteristics of the hydraulic system make the cutting process smoother and less impactful. The linkage design of this component with the clamping component realizes an automated "clamp before cutting" process, which not only improves the accuracy of the cutting position but also completely solves the problems of low efficiency and uneven cuts in traditional manual thread cutting. This increases the thread cutting speed and produces a clean cut. Furthermore, the control of the cutting position ensures that the length of thread left in each yarn tube remains consistent, creating favorable conditions for subsequent processes. The overall structure is compact and reasonable, representing a significant technological advancement and practical value in the field of textile machinery.

[0019] 2. This type of rewinding machine with an automatic yarn cutting structure is equipped with a clamping assembly. Through the lever linkage structure between the clamping arm and the roller shaft, the clamping action is automatically triggered when the support rod is advanced, achieving synchronization with the cutting process. This ensures that the yarn is in an optimal fixed state at the moment of cutting. The special configuration of the L-shaped support block, combined with the clamping block with friction grooves, forms a three-dimensional clamping space. The guide of the sliding block and the sliding groove ensures that the clamping surface always maintains parallel contact. This not only adapts to yarns of different diameters but also avoids the yarn compression and deformation that may be caused by traditional clamps. The elastic pre-tightening setting of the return spring gives the clamping block an adaptive adjustment function, providing sufficient clamping force to prevent yarn slippage during cutting. The bearing connection between the rotating shaft and the second fixed block makes the clamping arm move flexibly and without jamming. Combined with the rolling contact setting between the roller shaft and the second slider, mechanical wear is reduced. The entire clamping process is fully mechanized, which improves efficiency compared to manual operation and provides uniform clamping force, completely eliminating quality fluctuations caused by human factors. At the same time, the modular design facilitates quick replacement and maintenance, significantly reducing equipment maintenance costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the fixing plate, the first fixing block, and the sliding rod of this utility model;

[0023] Figure 3 This is a schematic diagram showing the disassembled structure of the fixing plate, the first fixing block, and the sliding rod of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the cleaving assembly of this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the cleaving assembly of this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the clamping arm, support block, and rotating shaft of this utility model;

[0027] Figure 7 This is a schematic diagram showing the disassembled structure of the support block, clamping block, and reset spring of this utility model;

[0028] Figure 8 This is a three-dimensional structural diagram of the support rod, the second slider, and the cutter head of this utility model.

[0029] The diagram is marked as follows:

[0030] 1. Rewinding machine body; 101. Fixing plate; 102. First fixing block; 103. Slide rod; 104. Threaded rod; 105. First slider; 2. Slide groove; 3. Connecting block; 4. Housing; 5. Second fixing block; 6. Clamping arm; 7. Support rod; 8. Support block; 9. First limiting block; 10. Second limiting block; 11. Hydraulic cylinder; 12. Roller shaft; 13. Clamping block; 14. Return spring; 15. Housing cavity; 16. Slide groove; 17. Cutting head; 18. Second slider; 19. Slide block; 20. Friction groove; 21. Rotating shaft. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0032] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] like Figures 1 to 8 As shown, a rewinding machine with an automatic yarn cutting structure includes: a rewinding machine body 1; a yarn cutting assembly, which is installed inside the rewinding machine body 1 and is used to cut the yarn connected to the wound yarn tube; and a clamping assembly, which is installed inside the yarn cutting assembly and is used to cooperate with the yarn cutting assembly to cut the yarn. The rewinding machine body 1 includes a fixing plate 101, a first fixing block 102, a slide rod 103, a threaded rod 104, and a first slider 105. Two slide rods 103 are symmetrically fixedly installed on one side of the fixing plate 101. The slide rods 103 and the threaded rod 104 are fixedly installed between the two first fixing blocks 102. The first slider 105 is slidably installed on the slide rods 103 and the threaded rod 104. A connecting block 3 is fixedly installed on one side of the first slider 105. A groove 2 is provided on the fixing plate 101, and the connecting block 3 is slidably installed in the groove 2.

[0034] When the rewinding machine starts working, the threaded rod 104 in the main body 1 of the rewinding machine begins to rotate under the drive of the drive device. Since the threaded rod 104 and the first slider 105 are connected by a threaded engagement, the rotational motion of the threaded rod 104 is converted into the linear reciprocating motion of the first slider 105. The first slider 105 slides smoothly along the axial direction of the slide rod 103 and the threaded rod 104. The slide rod 103 plays a guiding and supporting role, ensuring the stability of the movement trajectory of the first slider 105. The reciprocating motion of the first slider 105 is transmitted to the wire cutting assembly through the connecting block 3 on its side. The connecting block 3 slides along the groove 2 on the fixed plate 101, further ensuring the linearity and stability of the movement of the wire cutting assembly. The wire cutting assembly moves synchronously with the reciprocating motion of the first slider 105, and remains in a standby state throughout the rewinding process. When the yarn winding is complete, the control system sends a signal to stop the first slider 105. At this time, the yarn cutting assembly stops at the cutting position. Simultaneously, the clamping assembly starts immediately, using its internal clamping mechanism to firmly clamp the yarn, preventing it from shifting or loosening during cutting. Then, the cutting blade in the yarn cutting assembly moves quickly, accurately cutting the yarn connected to the wound yarn tube with the help of the clamping assembly, completing the automatic yarn cutting operation. Throughout the process, the coordinated action of the slide bar 103 and the threaded rod 104 ensures the smooth movement and positioning accuracy of the yarn cutting assembly, while the constraint of the groove 2 on the connecting block 3 further improves the rigidity of the system, making the yarn cutting action more precise and reliable. This automated yarn cutting structure effectively improves production efficiency, reduces manual intervention, and ensures the consistency of cutting quality.

[0035] like Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, the cutting assembly includes a housing 4 installed on one side of the connecting block 3. A support rod 7 is slidably installed inside the housing 4. A cutter head 17 is installed at one end of the support rod 7. A hydraulic cylinder 11 is installed inside the housing 4. The output end of the hydraulic cylinder 11 is connected to one side of the support rod 7. Two first limiting blocks 9 are symmetrically fixedly installed inside the housing 4. One end of the support rod 7 is slidably installed between the two first limiting blocks 9. Second sliders 18 are symmetrically installed on both sides of the support rod 7. Several second limiting blocks 10 are fixedly installed on one side of the interior of the housing 4. One side of the second limiting block 10 abuts against one side of the second slider 18.

[0036] When the rewinding machine completes the winding operation, the hydraulic cylinder 11 immediately starts, and its output end applies a thrust to one side of the support rod 7, pushing the support rod 7 to slide smoothly along the inside of the housing 4. The movement of the support rod 7 is guided by the first limiting blocks 9 on both sides, ensuring that it moves along a straight path. At the same time, the second slider 18 on the support rod 7 and the second limiting block 10 inside the housing 4 always maintain sliding contact, further enhancing the stability of the support rod 7 during movement and preventing swaying or jamming. As the support rod 7 advances, the cutter head 17 installed at its end moves towards the yarn direction. At the same time, the clamping assembly starts synchronously, and its clamping mechanism quickly... The clamping mechanism quickly closes, firmly clamping the yarn to be cut in the preset position to prevent the yarn from loosening or shifting during the cutting process. At the instant the clamping component completes the clamping action, the cutter head 17, under the continuous push of the hydraulic cylinder 11, contacts the yarn and applies shearing force, using its sharp edge to cleanly and neatly cut the yarn. Throughout the cutting process, the coordinated limiting effect of the first limiting block 9 and the second limiting block 10 ensures that the movement trajectory of the cutter head 17 is accurate, while the stable thrust provided by the hydraulic cylinder 11 ensures the strength and efficiency of the cutting action, making the yarn cutting operation fast, accurate and reliable, effectively improving production efficiency and cutting quality.

[0037] like Figure 5 , Figure 6 , Figure 7 As shown, the clamping assembly includes several clamping arms 6 rotatably mounted inside the housing 4. A support block 8 is fixedly mounted on one side of the clamping arm 6, and a roller 12 is rotatably mounted on the other side of the clamping arm 6. The roller 12 abuts against one side of the second slider 18. A placement cavity 15 is opened in the support block 8, and a clamping block 13 is slidably mounted in the placement cavity 15. Several return springs 14 are fixedly mounted on one side of the clamping block 13, and the side of the return springs 14 away from the clamping block 13 is fixedly mounted on the side of the placement cavity 15. The support block 8 is L-shaped, and a sliding groove 16 is opened on one side of the long side of the support block 8. A sliding block 19 is fixedly mounted on one side of the clamping block 13 and is slidably mounted in the sliding groove 16. Several friction grooves 20 are opened on one side of the clamping block 13. A rotating shaft 21 is fixedly mounted in the middle of the clamping arm 6, and several second fixing blocks 5 are fixedly mounted on one side of the housing 4. The rotating shaft 21 is rotatably mounted on one side of the second fixing blocks 5.

[0038] The clamping assembly moves synchronously when the support rod 7 moves forward under the drive of the hydraulic cylinder 11. Simultaneously, the second sliders 18 on both sides advance and contact the rollers 12 on the clamping arm 6. As the second sliders 18 continue to advance, the rollers 12 are subjected to lateral pressure, causing the clamping arm 6 to rotate around the rotating shaft 21. Since the rotating shaft 21 is stably mounted on the housing 4 via the second fixing block 5, the rotation of the clamping arm 6 is smooth and accurate. During the rotation of the clamping arm 6, the L-shaped support block 8 at its end retracts inward, and the clamping space formed by the two opposing support blocks 8 gradually shrinks. At this time, the clamping block 13 in the placement cavity 15 maintains its initial position under the preload of the return spring 14. When the support block 8 approaches to a set distance, the clamping block 13 contacts the yarn and slides along the yarn under pressure. The groove 16 moves slightly backward, and the sliding block 19 slides within the sliding groove 16 to ensure the linearity of the movement trajectory of the clamping block 13. At the same time, the return spring 14 is compressed to generate a reverse force, causing the friction groove 20 on the clamping block 13 to press tightly against the yarn surface with appropriate pressure. The friction groove 20 on the surface of the clamping block 13 increases the friction of the contact surface to ensure a firm clamping and prevent the yarn from sliding or shifting during cutting. After the clamping assembly has completed the yarn fixing, the cutter head 17 at the front end of the support rod 7 moves precisely to the cutting position to perform a precise cut. Throughout the clamping process, the lever principle of the clamping arm 6 achieves the effect of small stroke and large clamping force. The special structure of the L-shaped support block 8 ensures clamping stability, while the elastic characteristics of the return spring 14 provide an adaptive clamping force adjustment function for different yarn diameters, enabling the system to reliably clamp while avoiding damage to the yarn.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0040] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rewinding machine with an automatic wire cutting structure, characterized in that, include: The main body of the rewinding machine (1); A yarn cutting assembly is installed inside the rewinding machine body (1) and is used to cut the yarn connected to the wound yarn tube. A clamping assembly is installed inside the yarn cutting assembly and is used to cooperate with the yarn cutting assembly to cut the yarn.

2. The rewinding machine with an automatic wire cutting structure according to claim 1, characterized in that, The main body (1) of the rewinding machine includes a fixed plate (101), a first fixed block (102), a slide rod (103), a threaded rod (104), and a first slider (105). Two slide rods (103) are symmetrically fixedly installed on one side of the fixed plate (101). The slide rods (103) and the threaded rods (104) are fixedly installed between the two first fixed blocks (102). The first slider (105) is slidably installed on the slide rods (103) and the threaded rods (104). A connecting block (3) is fixedly installed on one side of the first slider (105). A groove (2) is opened on the fixed plate (101). The connecting block (3) is slidably installed in the groove (2).

3. The rewinding machine with an automatic wire cutting structure according to claim 2, characterized in that, The cutting assembly includes a housing (4) mounted on one side of the connecting block (3), a support rod (7) slidably mounted inside the housing (4), a cutter head (17) mounted on one end of the support rod (7), a hydraulic cylinder (11) mounted inside the housing (4), and the output end of the hydraulic cylinder (11) connected to one side of the support rod (7).

4. The rewinding machine with an automatic wire cutting structure according to claim 3, characterized in that, Two first limiting blocks (9) are symmetrically fixedly installed inside the housing (4). One end of the support rod (7) is slidably installed between the two first limiting blocks (9). Second sliders (18) are symmetrically installed on both sides of the support rod (7). Several second limiting blocks (10) are fixedly installed on one side of the inside of the housing (4). One side of the second limiting block (10) abuts against one side of the second slider (18).

5. The rewinding machine with an automatic wire cutting structure according to claim 4, characterized in that, The clamping assembly includes a plurality of clamping arms (6) rotatably mounted inside the housing (4). A support block (8) is fixedly mounted on one side of each clamping arm (6), and a roller (12) is rotatably mounted on the other side of each clamping arm (6). The roller (12) abuts against one side of the second slider (18).

6. The rewinding machine with an automatic wire cutting structure according to claim 5, characterized in that, The support block (8) has a mounting cavity (15) inside, and a clamping block (13) is slidably installed inside the mounting cavity (15). Several return springs (14) are fixedly installed on one side of the clamping block (13), and the side of the return springs (14) away from the clamping block (13) is fixedly installed on one side of the mounting cavity (15).

7. The rewinding machine with an automatic wire cutting structure according to claim 6, characterized in that, The support block (8) is L-shaped, and a sliding groove (16) is provided on one side of the long side of the support block (8). A sliding block (19) is fixedly installed on one side of the clamping block (13), and the sliding block (19) is slidably installed in the sliding groove (16).

8. The rewinding machine with an automatic wire cutting structure according to claim 7, characterized in that, The clamping block (13) has several friction grooves (20) on one side.

9. The rewinding machine with an automatic wire cutting structure according to claim 5, characterized in that, A rotating shaft (21) is fixedly installed in the middle of the clamping arm (6), and a number of second fixing blocks (5) are fixedly installed on one side of the housing (4). The rotating shaft (21) is rotatably installed on one side of the second fixing block (5).

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