Automatic weft straightening and cutting device for textile fabric

Abstract

The utility model relates to textile machinery technical field, the utility model provides a kind of automatic weft of textile, it includes rack, material feeding roller, cutting mechanism and clamping mechanism are sequentially provided with in rack along the direction of textile conveying, and clamping mechanism below is equipped with material receiving bin;Cutting mechanism includes two transition support plates spaced apart in the direction of conveying and located in rack, cutting groove is formed between the two transition support plates;Cutting knife is slidably connected to rack and located below transition support plate, the upper edge of cutting knife extends cutting groove from bottom to top;It is equipped with rotating shaft that is rotatably connected to rack around its own axis;The outer circumferential surface of rotating shaft is fixedly connected with one side of material supporting flap, the other side of material supporting flap extends towards clamping mechanism, material supporting plate can be turned over upwards with rotating shaft, to lift the cutting end of textile after cutting and towards clamping mechanism.The device solves the problem of low clamping precision and easy to clamp not up of clamping mechanism after cutting of existing cutting device.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, specifically to an automatic weft straightening and cutting device for textiles. Background Technology

[0002] In the production and processing of textiles, textiles (including various woven fabrics, knitted fabrics, non-woven fabrics, etc.) often need to be cut to a fixed length or shape according to subsequent processing requirements (such as sewing, printing, molding, etc.). Therefore, textile cutting equipment is one of the key pieces of equipment in textile processing production lines.

[0003] Existing textile cutting devices typically include at least a conveying mechanism (such as a conveyor roller group, conveyor belt, etc.) for conveying textiles, a cutting mechanism (such as a blade cutting assembly, laser cutting assembly, etc.) for cutting textiles, and a clamping mechanism for clamping the ends of textiles after cutting and transferring them to the next process or repositioning them for the next cutting and loading.

[0004] After the cutting mechanism completes one cut, the clamping mechanism needs to move to the cut end of the textile, clamp the end, and move the textile to the set loading position. Then, the textile is released to complete one cutting and loading cycle, so that the next cutting operation can be carried out.

[0005] However, in the above-mentioned textile cutting device in the prior art, after the textile itself has a certain degree of flexibility and elasticity, the cut end is prone to slight wrinkles, curls or burrs, and will also sag slightly under the action of gravity, making it difficult for the clamping part of the clamping mechanism to accurately align with the effective end area of ​​the textile. As a result, the clamping mechanism has low clamping accuracy at the end of the textile and is prone to failure to clamp. Utility Model Content

[0006] To overcome the above-mentioned defects, the present invention provides an automatic weft straightening and cutting device for textiles, which solves the technical problem that the existing cutting device has low clamping accuracy and is prone to failure to clamp when it is used to re-clamp the end of the textile to move the textile for feeding after cutting.

[0007] According to one aspect, at least one embodiment of the present invention provides an automatic weft-aligning and cutting device for textiles, comprising: The frame is equipped with a feed roller, a cutting mechanism and a clamping mechanism arranged sequentially along the textile conveying direction, as well as a receiving bin located below the clamping mechanism. The cutting mechanism includes: Two transition support plates are spaced apart on the frame along the textile conveying direction, and a cutting groove is formed between the two transition support plates; The cutting blade is slidably connected to the frame and located below the transition support plate. The upper edge of the cutting blade extends from bottom to top into a cutting groove for sliding cutting the textile located above the transition support plate. The rotating shaft is rotatably connected to the frame around its own axis. The rotating shaft is arranged parallel to the transition support plate and is located above the transition support plate on the side closer to the feed roller. The material support flap is fixedly connected to the outer circumference of the rotating shaft on one side and extends toward the clamping mechanism on the other side. The material support flap can be flipped upward under the drive of the rotating shaft so as to lift the cut end of the textile and face it toward the clamping mechanism after the cutting is completed.

[0008] For example, in at least one embodiment of the present invention, an automatic weft-aligning and cutting device for textiles further includes: The oscillating drive component, located on the frame, is used to drive the rotating shaft to reciprocate around its own axis in order to achieve the flipping and resetting of the material support flap.

[0009] For example, in at least one embodiment of the present invention, an automatic weft straightening and cutting device for textiles also includes a pressure plate and a vertical drive component; The vertical drive unit is mounted on the frame, and its output end is fixedly connected to the pressure plate. The vertical drive unit can drive the pressure plate to move downward to the ground and contact the textile. The pressure plate is located directly above the cutting groove. A clearance groove is provided on the bottom surface of the pressure plate. The extension direction of the clearance groove is consistent with the sliding direction of the cutting blade, which is used to avoid the upper edge of the cutting blade when the cutting blade cuts the textile.

[0010] For example, in at least one embodiment of the present invention, an automatic weft-aligning and cutting device for textiles includes a clamping mechanism comprising: The sliding frame is slidably connected to the frame and located above the receiving hopper; The receiving plate is located on the lower part of the side of the sliding frame near the material support flap. The receiving plate can approach the material support flap under the sliding action of the sliding frame and is used to receive the cut end of the textile fabric raised by the material support flap. The swing plate is oscillatingly connected to the sliding frame and located above the receiving plate. The swing plate can swing so that its free end abuts against the receiving plate to clamp the textile on the receiving plate.

[0011] For example, in an automatic weft straightening and cutting device for textiles provided in at least one embodiment of the present invention, comb teeth are provided on the side of the material support flap close to the material receiving plate and on the side of the material receiving plate close to the material support flap. The tooth pitch and tooth width of the two sets of comb teeth are matched, and they can cooperate with each other when the material receiving plate is close to the material support flap.

[0012] For example, in an automatic weft straightening and cutting device for textiles provided in at least one embodiment of the present invention, a first telescopic member for driving the swing plate to swing is hinged on the sliding frame, and the telescopic end of the first telescopic member is hinged to the swing plate.

[0013] For example, in at least one embodiment of the present invention, an automatic weft-aligning and cutting device for textiles includes a clamping mechanism that further comprises: The first synchronous belt is mounted on the frame; The connecting rod has its two ends connected to the first synchronous belt and the sliding frame, respectively. The connecting rod can move synchronously with the movement of the first synchronous belt to drive the sliding frame to slide along the textile conveying direction.

[0014] For example, in an automatic weft straightening and cutting device for textiles provided in at least one embodiment of the present invention, spiral guides are symmetrically provided at both ends of the outer peripheral surface of the feed roller; the spiral direction of the spiral guides is towards the end of the feed roller, and is used to guide the edge of the textile towards the end of the feed roller when the feed roller rotates to transport the textile.

[0015] For example, in at least one embodiment of the present invention, an automatic weft-aligning and cutting device for textiles further includes: The visual inspection mechanism, mounted on the frame and located between the feed roller and the cutting mechanism, is used to acquire images of the textile and detect the weft skew deviation of the textile. Several weft adjustment mechanisms are installed at intervals along the width direction of the textile on the frame and are located between the cutting mechanism and the clamping mechanism; the weft adjustment mechanisms can adjust the weft position of the textile to correct the weft skew based on the detection results of the visual inspection mechanism.

[0016] For example, in at least one embodiment of the present invention, an automatic weft-aligning and cutting device for textiles includes a weft-aligning adjustment mechanism comprising: The second telescopic component is mounted on the frame, and the telescopic end of the second telescopic component extends along the thickness direction of the textile. The adjusting roller is rotatably connected to the telescopic end of the second telescopic component; the second telescopic component can extend to drive the adjusting roller to abut against the surface of the textile. The speed-regulating drive is fixedly installed at the telescopic end of the second telescopic component, and the output end of the speed-regulating drive is connected to the adjustment roller drive. The speed-regulating drive can change the conveying speed of the corresponding area of ​​the textile by adjusting the rotation speed of the adjustment roller, so as to correct the weft skew deviation of the textile.

[0017] The beneficial effects of the embodiments of this utility model are as follows: In this invention, the frame provides a stable assembly base for the feed roller, cutting mechanism, clamping mechanism and receiving bin; two transition support plates are spaced apart along the textile conveying direction, and the cutting groove formed between them prevents the cutting blade from interfering with the transition support plate when it slides and cuts, ensuring that the cutting action is performed smoothly.

[0018] The rotating shaft is parallel to the transition support plate and is located above the transition support plate near the feed roller, so that the material support flip plate can act on the end of the cut textile when it flips. The material support flip plate flips upward with the rotating shaft, which can lift the end that has sagged and wrinkled due to its flexibility and elasticity after cutting, and make the end face the clamping mechanism, providing a clear alignment target for the clamping mechanism. This solves the problem that the clamping mechanism in the existing device is difficult to accurately align the end and is easy to fail to clamp, thus improving the clamping accuracy and operational reliability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an automatic weft straightening and cutting device for textiles in one embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view at point B in the middle; Figure 4 for Figure 1 Another perspective structural diagram of the cutting device in the embodiment; Figure 5 for Figure 4 Enlarged view of point C.

[0021] In the diagram: 1. Frame, 2. Feed roller, 3. Cutting mechanism, 4. Clamping mechanism, 5. Receiving bin, 31. Transition support plate, 311. Cutting groove, 32. Cutting blade, 33. Rotating shaft, 34. Material support flap, 35. Swing drive component, 36. Pressure plate, 37. Vertical drive component, 361. Clearance groove, 41. Sliding frame, 42. Receiving plate, 43. Swing plate, 421. Comb teeth, 45. First telescopic component, 46. First synchronous belt, 47. Connecting rod, 21. Spiral guide bar, 6. Vision inspection mechanism, 7. Weft adjustment mechanism, 71. Second telescopic component, 72. Adjusting roller, 73. Speed ​​control drive component. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0022] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] In the textile industry, textiles (including woven fabrics, knitted fabrics, and non-woven fabrics) need to be cut to a fixed length or shape according to the requirements of subsequent sewing, printing, and molding. Textile cutting devices are key equipment in production lines. Existing cutting devices often result in wrinkles, curling, or sagging at the cut ends of textiles due to their flexibility and elasticity, making it difficult for the gripping components to align with the ends, thus affecting gripping accuracy and work efficiency. To solve this problem, this embodiment provides an automatic weft-aligning cutting device for textiles, which can realize textile cutting, end lifting and guiding, and gripping and transferring, while also having a weft skew correction function, suitable for continuous processing of various textiles.

[0028] like Figure 1 As shown, the device includes a frame 1, which serves as the overall mounting base, providing assembly support for all components such as the feed roller 2, cutting mechanism 3, clamping mechanism 4, and receiving bin 5. Its structural design ensures that each component maintains a fixed relative position during operation, avoiding processing deviations caused by foundation swaying. Along the textile conveying direction, the feed roller 2, cutting mechanism 3, and clamping mechanism 4 are arranged sequentially on the frame 1. The receiving bin 5 is located below the clamping mechanism 4, serving to receive the textile after it has been transferred by the clamping mechanism 4. Its position is designed to match the transfer trajectory of the clamping mechanism 4, ensuring that the textile falls into it after release, preventing material spillage.

[0029] like Figure 1 and Figure 2 As shown, the cutting mechanism 3 includes two transition support plates 31, a cutting blade 32, a rotating shaft 33, and a material-supporting flap 34. The two transition support plates 31 are spaced apart on the frame 1 along the textile conveying direction, forming a cutting groove 311 between them. The top surfaces of the transition support plates 31 remain flush, allowing the textile to lie flat on them and preventing wrinkles caused by uneven support surfaces. The cutting groove 311 provides space for the cutting action of the cutting blade 32, ensuring that the cutting blade 32 does not interfere with the transition support plates 31 when moving perpendicular to the textile conveying direction. The cutting blade 32 is slidably connected to the frame 1 and located below the transition support plates 31. The upper edge of the cutting blade 32 extends upwards from the cutting groove 311. This upward cutting design reduces friction interference between the cutting blade 32 and the upper surface of the textile, while ensuring that the cutting force is applied in a direction consistent with the flat state of the textile, reducing the probability of burrs at the cut end and achieving cutting of the textile above the transition support plates 31.

[0030] The rotating shaft 33 is rotatably connected to the frame 1 around its own axis. Its axis is parallel to the length direction of the transition support plate 31 and is located above the transition support plate 31 on the side closer to the feed roller 2. This position design allows the material support flip plate 34 to act on the cut end of the textile when it flips, avoiding the inability to contact the end due to positional misalignment. One side of the material support flip plate 34 is fixedly connected to the outer circumferential surface of the rotating shaft 33, and the other side extends toward the clamping mechanism 4. When the rotating shaft 33 rotates, the material support flip plate 34 can flip up and down accordingly. After cutting, the material support flip plate 34 flips upward to lift the cut end of the textile, changing the state of the end drooping due to gravity, so that the end faces the clamping mechanism 4, providing an alignment target for the clamping action of the clamping mechanism 4, and solving the problem that the clamping components in the prior art are difficult to align with the end.

[0031] Furthermore, the cutting blade 32 can be a circular saw cutting blade driven by a motor. The motor is mounted on a mounting base that can slide along the width direction of the frame 1. The mounting base slides through a transmission structure, which can be a chain, a synchronous belt, or any structure in the mechanical field that can achieve sliding transmission. At the same time, the sliding fits at each sliding fit connection use the form of guide rails and sliders commonly used in the prior art. The sliding fits that appear in the following structural description all use the form of guide rails and sliders commonly used in the prior art.

[0032] The textile processing begins with the feeding roller 2, which conveys the textile to the cutting mechanism 3, where it lies flat above the two transition support plates 31. When cutting is required, the cutting blade 32 moves along the sliding direction, extending beyond the upper edge of the cutting groove 311 to cut the textile. After cutting, the rotating shaft 33 rotates and drives the material support plate 34 to flip upward. The side of the material support plate 34 away from the rotating shaft 33 lifts the cut end of the textile, making that end face the clamping mechanism 4, thus providing alignment for the subsequent clamping action of the clamping mechanism 4.

[0033] Optionally, to achieve automated control of the flipping and resetting of the material-carrying flap 34, a swing drive component 35 is provided on the frame 1, such as... Figure 2As shown. The output end of the swing drive 35 is connected to the rotating shaft 33, which can drive the rotating shaft 33 to reciprocate around its own axis. This eliminates the need for manual rotation of the rotating shaft 33, reducing manual intervention and improving the automation level of the operation. When it is necessary to lift the cut end of the textile, the swing drive 35 drives the rotating shaft 33 to rotate in the first direction, and the material support flap 34 flips upward with the rotating shaft 33. When the end lifting is completed and the textile needs to be received after the next cut, the swing drive 35 drives the rotating shaft 33 to rotate in the second direction opposite to the first direction, and the material support flap 34 returns to its initial position, lying flat on the transition support plate 31 near the feed roller 2. The driving force of the swing drive 35 can be controlled to ensure that the rotating shaft 33 rotates at a consistent angle each time, thereby keeping the flipping amplitude and lifting position of the material support flap 34 uniform. This avoids deviations in the end lifting position caused by uneven manual operation force, further improving the stability of the clamping mechanism 4 in aligning the end.

[0034] Furthermore, to prevent the textile from shifting during the cutting process, the cutting mechanism 3 also includes a pressure plate 36 and a vertical drive component 37, such as... Figure 2 As shown. The vertical drive unit 37 is disposed on the frame 1. The output end of the vertical drive unit 37 is fixedly connected to the pressure plate 36. The vertical drive unit 37 can drive the pressure plate 36 to move up and down in the vertical direction. When it is necessary to fix the textile, the vertical drive unit 37 drives the pressure plate 36 to move down until it contacts the surface of the textile. The textile is pressed tightly onto the transition support plate 31 by pressure, which restricts the lateral or longitudinal movement of the textile during the cutting process, avoids the textile from shifting due to the cutting force of the cutting blade 32, and ensures accurate cutting position. The pressure plate 36 is located directly above the cutting groove 311. The bottom surface of the pressure plate 36 is provided with a relief groove 361. The extension direction of the relief groove 361 is consistent with the sliding direction of the cutting blade 32. When the cutting blade 32 slides to cut, its upper structure can pass through the relief groove 361 to avoid the pressure plate 36 interfering with the movement of the cutting blade 32. At the same time, the pressure plate 36 can press the textile on both sides of the cutting groove 311 to further ensure the flatness of the textile in the cutting area and improve the cutting quality.

[0035] like Figure 1 and Figure 3As shown, the clamping mechanism 4 includes a sliding frame 41, a receiving plate 42, and a swing plate 43. The sliding frame 41 is slidably connected to the frame 1 and is located above the receiving bin 5. The sliding frame 41 can slide along the textile conveying direction, and its sliding trajectory is adapted to the textile transfer path to ensure that the clamped textile can be transferred to the receiving bin 5. The receiving plate 42 is located on the lower part of the side of the sliding frame 41 near the material support flip plate 34. When the sliding frame 41 slides towards the material support flip plate 34, the receiving plate 42 can move towards the material support flip plate 34 synchronously with the sliding frame 41 to receive the cut end of the textile raised by the material support flip plate 34. The receiving plate 42 is configured to provide support for the end, preventing the end from sagging or shifting again during the transfer process, while keeping the end in a flat state for easy subsequent clamping. The swing plate 43 is oscillatingly connected to the sliding frame 41 and located above the receiving plate 42. The swing plate 43 can swing around the hinge point between itself and the sliding frame 41. When the free end of the swing plate 43 swings downward to abut against the receiving plate 42, it can clamp the textiles supported on the receiving plate 42 and fix the textiles by mechanical clamping force to prevent the textiles from falling off due to vibration or inertia during the transfer process. When the swing plate 43 swings upward, it can release the clamp to release the textiles and let the textiles fall into the receiving bin 5, thus realizing the control of transfer and release.

[0036] Optionally, to improve the transfer effect of the textile end from the material support flap 34 to the material receiving plate 42, comb teeth 421 are provided on both the side of the material support flap 34 near the material receiving plate 42 and the side of the material receiving plate 42 near the material support flap 34, such as... Figure 3 As shown. The tooth pitch and tooth width of the two sets of comb teeth 421 are matched. When the receiving plate 42 approaches the material support flap 34 along with the sliding frame 41, the two sets of comb teeth 421 can be interlocked. That is, the teeth of the comb teeth 421 on the material support flap 34 are inserted into the tooth grooves of the comb teeth 421 on the receiving plate 42, and the teeth of the comb teeth 421 on the receiving plate 42 are inserted into the tooth grooves of the comb teeth 421 on the material support flap 34. This interlocking structure can reduce the gap between the material support flap 34 and the receiving plate 42, and avoid the transfer interruption caused by the end of the textile getting stuck between the two plates. At the same time, the tooth structure of the comb teeth 421 can comb the end, further smooth out wrinkles, and ensure that the end is smoothly transferred to the receiving plate 42.

[0037] Furthermore, to drive the swing plate 43 to swing, a first telescopic member 45 is hinged to the sliding frame 41, such as... Figure 3As shown. One end of the first telescopic member 45 is hinged to the sliding frame 41, and the other telescopic end is hinged to the swing plate 43. The telescopic motion is converted into the swing motion of the swing plate 43, eliminating the need for a complex transmission structure and simplifying the device design. When it is necessary to clamp the textile, the first telescopic member 45 extends, and its telescopic end pushes the swing plate 43 to swing downward until the free end of the swing plate 43 abuts against the receiving plate 42; when it is necessary to release the textile, the first telescopic member 45 shortens, and its telescopic end pulls the swing plate 43 to swing upward, causing the swing plate 43 to separate from the receiving plate 42.

[0038] To enable the sliding frame 41 to slide, the clamping mechanism 4 also includes a first synchronous belt 46 and a connecting rod 47, such as... Figure 4 As shown, two synchronous pulleys are installed on the frame 1 along the textile conveying direction. The first synchronous belt 46 is wrapped around the outside of the two synchronous pulleys to form a closed-loop transmission structure. The synchronous belt drive can avoid the impact of gear transmission or the jamming of chain transmission, ensuring that the sliding frame 41 moves at a uniform speed. One end of the connecting rod 47 is fixedly connected to the first synchronous belt 46, and the other end is fixedly connected to the sliding frame 41. When the synchronous pulleys rotate, they drive the first synchronous belt 46 to move along the textile conveying direction. The connecting rod 47 moves synchronously with the first synchronous belt 46, thereby driving the sliding frame 41 to slide along the frame 1. This transmission method makes the movement position of the sliding frame 41 controllable, ensuring that the receiving plate 42 can approach the material support flip plate 34, avoiding the failure of the receiving plate 42 to receive the end due to the deviation of the sliding position, and further improving the reliability of the clamping operation.

[0039] like Figure 1 and Figure 4 As shown, spiral guides 21 are symmetrically arranged at both ends of the outer circumference of the feed roller 2, with the spiral direction of the spiral guides 21 facing the end of the feed roller 2. When the feed roller 2 rotates around its own axis to transport the textile, the spiral guides 21 rotate synchronously with the feed roller 2, generating a guiding force on the edge of the textile towards the end of the feed roller 2. This guiding force allows the textile to spread out to both sides along the width direction during transport, preventing the textile from shifting or wrinkling in the width direction, ensuring that the textile is transported flat above the transition support plate 31, providing a material base for the subsequent cutting mechanism 3 and clamping mechanism 4, and reducing processing errors caused by uneven materials.

[0040] Furthermore, to correct the weft skew deviation of the textile, the device also includes a vision inspection mechanism 6 and several weft adjustment mechanisms 7. The vision inspection mechanism 6 is mounted on the frame 1 via a bracket and is located between the feed roller 2 and the cutting mechanism 3. The inspection lens of the vision inspection mechanism 6 faces downwards towards the textile, allowing it to acquire real-time images of the textile surface and identify the weft pattern of the textile through image analysis technology. This determines whether weft skew deviation exists and its magnitude (weft skew deviation refers to the offset of the weft pattern of the textile from the predetermined conveying direction). Compared to manual visual inspection, the vision inspection mechanism 6 can detect weft skew deviation in a timely manner, preventing the accumulation of deviation that could lead to subsequent processing quality problems. Several weft adjustment mechanisms 7 are spaced apart along the width direction of the textile on the frame 1 and are located between the cutting mechanism 3 and the clamping mechanism 4. Each weft adjustment mechanism 7 is electrically connected to the vision inspection mechanism 6 and can adjust the weft position of the textile according to the detection results of the vision inspection mechanism 6, achieving targeted correction and avoiding over-correction or under-correction caused by overall adjustment, thus improving the accuracy of weft skew correction.

[0041] like Figure 5 As shown, the weft skew adjustment mechanism 7 includes a second telescopic member 71, an adjusting roller 72, and an independently controlled speed-regulating drive 73. The second telescopic member 71 is mounted on the frame 1, and its telescopic end extends along the thickness direction of the fabric. It can adjust the contact state between the adjusting roller 72 and the fabric as needed. The adjusting roller 72 is rotatably connected to the telescopic end of the second telescopic member 71 via a bearing. When weft skew correction is required, the second telescopic member 71 extends, driving the adjusting roller 72 to move downwards until it contacts the surface of the fabric. Friction then moves the corresponding area of ​​the fabric. After correction, the second telescopic member 71 shortens, causing the adjusting roller 72 to separate from the fabric. This avoids additional friction between the adjusting roller 72 and the fabric in the non-correction state, which could affect the fabric's conveying speed or surface quality. The speed-regulating drive component 73 is fixedly installed at the telescopic end of the second telescopic component 71. The output end of the speed-regulating drive component 73 is connected to the adjusting roller 72. By adjusting the rotation speed of the adjusting roller 72, the conveying speed of the corresponding contact area of ​​the textile can be changed. When there is weft skew in a certain width area of ​​the textile, by increasing or decreasing the rotation speed of the adjusting roller 72 corresponding to that area, the conveying speed of that area can be accelerated or decelerated, so that the conveying progress of that area is consistent with that of other areas, thereby restoring the weft pattern of the textile to flatness and achieving weft skew correction. By using different weft adjustment mechanisms 7 to adjust the conveying speed of different width areas of the textile differently, different forms of weft skew deviation can be adapted to, ensuring the weft flatness of the textile and improving the quality of the final product.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatic weft straightening and cutting device for a textile fabric, characterized in that, include: The frame (1) is provided with a feed roller (2), a cutting mechanism (3) and a clamping mechanism (4) arranged sequentially along the textile conveying direction, and a receiving bin (5) located below the clamping mechanism (4). The cutting mechanism (3) includes: Two transition support plates (31) are spaced apart on the frame (1) along the textile conveying direction, and a cutting groove (311) is formed between the two transition support plates (31). The cutting blade (32) is slidably connected to the frame (1) and located below the transition support plate (31). The upper edge of the cutting blade (32) extends from the bottom to the cutting groove (311) for sliding cutting of the textile located above the transition support plate (31). A rotating shaft (33) is rotatably connected to the frame (1) around its own axis. The rotating shaft (33) is arranged parallel to the transition support plate (31) and is located above the transition support plate (31) on the side close to the feed roller (2). The material support flap (34) is fixedly connected to the outer circumferential surface of the rotating shaft (33) on one side and extends toward the clamping mechanism (4) on the other side. The material support flap (34) can be flipped upward under the drive of the rotating shaft (33) so as to lift the cut end of the textile and face it toward the clamping mechanism (4) after the cutting is completed.

2. The automatic weft straightening and cutting device for textiles according to claim 1, characterized in that, Also includes: The swing drive (35) is mounted on the frame (1) and is used to drive the rotating shaft (33) to reciprocate around its own axis so as to realize the flipping and resetting of the material support plate (34).

3. The automatic weft alignment and cutting device for textile fabric according to claim 1, characterized in that, It also includes a pressure plate (36) and a vertical drive component (37); The vertical drive unit (37) is mounted on the frame (1). The output end of the vertical drive unit (37) is fixedly connected to the pressure plate (36). The vertical drive unit (37) can drive the pressure plate (36) to move downward to the ground and contact the textile. The pressure plate (36) is located directly above the cutting groove (311). The bottom surface of the pressure plate (36) is provided with an avoidance groove (361). The extension direction of the avoidance groove (361) is consistent with the sliding direction of the cutting blade (32), and it is used to avoid the upper edge of the cutting blade (32) when the cutting blade (32) cuts the textile.

4. The automatic weft alignment and cutting device for textile fabric according to claim 1, characterized in that, The clamping mechanism (4) includes: The sliding frame (41) is slidably connected to the frame (1) and located above the receiving bin (5); The receiving plate (42) is located on the lower part of the side of the sliding frame (41) near the material support flip plate (34). The receiving plate (42) can approach the material support flip plate (34) under the sliding drive of the sliding frame (41) and is used to receive the textile cutting end raised by the material support flip plate (34). The swing plate (43) is oscillatingly connected to the sliding frame (41) and located above the receiving plate (42). The swing plate (43) can swing so that its free end abuts against the receiving plate (42) to clamp the textile on the receiving plate (42).

5. An automatic weft alignment and cutting device for a textile fabric according to claim 4, characterized in that, The side of the material-supporting flap (34) near the material-receiving plate (42) and the side of the material-receiving plate (42) near the material-supporting flap (34) are both provided with comb teeth (421). The tooth pitch and tooth width of the two sets of comb teeth (421) are matched, and they can interlock and cooperate with each other when the material-receiving plate (42) is close to the material-supporting flap (34).

6. An automatic weft alignment and cutting device for a textile fabric according to claim 4, characterized in that, The sliding frame (41) is hinged with a first telescopic member (45) for driving the swing plate (43) to swing, and the telescopic end of the first telescopic member (45) is hinged to the swing plate (43).

7. An automatic weft alignment and cutting device for a textile fabric according to claim 4, characterized in that, The clamping mechanism (4) further includes: The first synchronous belt (46) is disposed on the frame (1); The connecting rod (47) has its two ends connected to the first synchronous belt (46) and the sliding frame (41) respectively. The connecting rod (47) can move synchronously with the movement of the first synchronous belt (46) to drive the sliding frame (41) to slide along the textile conveying direction.

8. The automatic weft alignment and cutting device for textile fabric according to claim 1, characterized in that, The feed roller (2) has spiral guides (21) symmetrically arranged at both ends of its outer peripheral surface; the spiral direction of the spiral guides (21) is toward the end of the feed roller (2), and is used to guide the edge of the textile toward the end of the feed roller (2) when the feed roller (2) rotates to transport the textile.

9. An automatic weft alignment and cutting device for a textile fabric according to claim 1, characterized in that, Also includes: A visual inspection mechanism (6) is assembled on the frame (1) and located between the feed roller (2) and the cutting mechanism (3), for acquiring images of the textile and detecting the weft skew deviation of the textile; Several weft adjustment mechanisms (7) are spaced apart on the frame (1) along the width direction of the textile and located between the cutting mechanism (3) and the clamping mechanism (4); the weft adjustment mechanism (7) can adjust the weft position of the textile to correct the weft skew according to the detection result of the visual inspection mechanism (6).

10. The automatic weft alignment and cutting device for textile fabric according to claim 9, characterized in that, The weft adjustment mechanism (7) includes: The second telescopic member (71) is provided on the frame (1), and the telescopic end of the second telescopic member (71) extends along the thickness direction of the textile. Adjusting roller (72) is rotatably connected to the telescopic end of the second telescopic member (71); the second telescopic member (71) can extend to drive the adjusting roller (72) to abut against the surface of the textile. The speed-regulating drive (73) is fixedly installed on the telescopic end of the second telescopic member (71), and the output end of the speed-regulating drive (73) is connected to the adjusting roller (72) for transmission. The speed-regulating drive (73) can change the conveying speed of the corresponding area of ​​the textile by adjusting the rotation speed of the adjusting roller (72) in order to correct the weft skew deviation of the textile.

Images