Warp and weft yarn binding device for single-face grid weaving and binding method of warp and weft yarn binding device

Abstract

The invention discloses a warp and weft yarn binding device for single-face grid weaving and a binding method of the warp and weft yarn binding device. A lifting driving end of a transverse lifting mechanism respectively drives a transverse heddle lifting piece I and a transverse heddle lifting piece II to do synchronous lifting motion; the transversely moving heald lifting piece I and the transversely moving heald lifting piece II are respectively connected with the rack through a transversely moving connecting rod assembly, and the transversely moving heald lifting piece I and the transversely moving heald lifting piece II are driven by the transversely moving connecting rod assembly to transversely move back and forth while synchronously ascending and descending; the guide wheel assembly I and the guide wheel assembly II respectively move along with the transverse heald lifting piece I and the transverse heald lifting piece II; the transverse moving heald frame I and the transverse moving heald frame II transversely move oppositely or oppositely along with the guide wheel assembly I and the guide wheel assembly II; and the bottom edges of the transverse moving heald frame I and the transverse moving heald frame II are respectively connected with a lifting driving end of the heald frame lifting mechanism. According to the invention, the problem of firm binding of the intersection points of the warp and weft yarns in the single-sided grid fabric can be fundamentally solved, and the high-efficiency production of the large-spacing single-sided grid fabric with stable structure and regular shape can be realized.

Description

Technical Field

[0001] This invention belongs to the field of loom technology, and specifically relates to a warp and weft yarn binding device and binding method for single-sided mesh weaving. Background Technology

[0002] Due to its unique properties such as permeability and lightweight, mesh fabrics are widely used in industries such as industry, agriculture, construction, and composite materials. Their weaving methods are mainly divided into two basic structures: single-sided weaving and double-sided weaving.

[0003] In traditional single-sided mesh weaving, warp and weft yarns form a mesh through simple interlacing (such as plain weave). At the intersections, the warp and weft yarns maintain their shape solely through mutual bending and friction, lacking an active locking mechanism. This inherent friction-dependent binding method has significant drawbacks: when attempting to increase the mesh spacing to achieve higher porosity, the cohesion area and friction between the yarns decrease drastically, leading to a deterioration in the mechanical properties of the mesh structure. It is highly susceptible to relative slippage, loosening, and irreversible deformation, making it difficult to produce structurally stable large-spacing mesh fabrics. This technological bottleneck severely limits the application of mesh fabrics in high-precision filtration, large geogrids, and lightweight aerospace structures. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a warp and weft yarn binding device and method for single-sided mesh weaving, which can fundamentally solve the problem of firmly binding the warp and weft yarn intersections in single-sided mesh fabrics, and is conducive to the efficient production of large-spacing single-sided mesh fabrics with stable structure and regular shape.

[0005] The main technical solution adopted in this invention is as follows: A warp and weft yarn binding device for single-sided mesh weaving includes a transverse lifting mechanism, a transverse heddle lifting plate I, a transverse heddle lifting plate II, a heddle frame lifting mechanism, two sets of transverse linkage assemblies, a guide wheel assembly I, a guide wheel assembly II, a transverse heddle frame I, and a transverse heddle frame II. The lifting drive end of the transverse lifting mechanism is connected to the transverse heddle lifting plate I and the transverse heddle lifting plate II respectively, driving the transverse heddle lifting plate I and the transverse heddle lifting plate II to perform synchronous lifting and lowering movements. The transverse heddle plate I and transverse heddle plate II are distributed on both sides of the axial direction of the weaving machine. The transverse heddle plate I and transverse heddle plate II are connected to the frame through the transverse linkage assembly. While the transverse heddle plate I and transverse heddle plate II are raised and lowered synchronously, they are driven by the transverse linkage assembly to move reciprocally laterally. Guide wheel assembly I and guide wheel assembly II are respectively installed on transverse lifting plate I and transverse lifting plate II, and move with transverse lifting plate I and transverse lifting plate II respectively; The transverse heald frame I and transverse heald frame II are respectively installed in conjunction with guide wheel assembly I and guide wheel assembly II, and move in a relative or opposite direction with guide wheel assembly I and guide wheel assembly II; The bottom edges of the transverse heald frame I and transverse heald frame II are respectively connected to the lifting drive end of the heald frame lifting mechanism.

[0006] Preferably, the transverse lifting mechanism includes a telescopic drive component, a rotating plate I, a rotating plate II, a drive link, an adjustable lifting link I, and an adjustable lifting link II. The central rotation points of the rotating plates I and II are rotatably mounted on the frame. One end of each rotating plate I and II is rotatably connected to both ends of the drive link, and the other end is rotatably connected to the bottom ends of the adjustable lifting links I and II, respectively. The telescopic drive end of the telescopic drive component is rotatably connected to the rotating plate I. The top ends of the adjustable lifting links I and II are rotatably connected to the transverse lifting plate I and transverse lifting plate II, respectively.

[0007] Preferably, both the adjustable lifting link I and the adjustable lifting link II are links whose lengths are telescopically adjustable.

[0008] Preferably, the transverse linkage assembly includes two transverse linkages arranged parallel to each other vertically, with one end of each transverse linkage rotatably connected to the frame and the other end rotatably connected to the side of the transverse lifting plate I or transverse lifting plate II.

[0009] Preferably, the guide wheel assembly I includes a guide wheel plate, at least one inner guide wheel, and at least one outer guide wheel. The guide wheel plate is mounted on the side of the transverse heald lifting plate I. The inner and outer guide wheels are rotatably mounted on the same side of the guide wheel plate, and the rotation axes of the inner and outer guide wheels are perpendicular to the transverse heald lifting plate I. A clamping groove is formed between the inner and outer guide wheels, which are arranged opposite to each other, for clamping the side of the transverse heald frame I. The structure of the guide wheel assembly II is the same as that of the guide wheel assembly I, and it is used to clamp the side of the transverse heald frame II.

[0010] Preferably, the top edges of the transverse heald frame I and transverse heald frame II are provided with a plurality of yarn guide needles, and the top of the yarn guide needles is provided with a needle hole for passing through the binding yarn.

[0011] A method for binding warp and weft yarns in single-sided mesh weaving, wherein yarn parameters are set based on a binding device, wherein binding yarn I passes through the guide needle of the transverse heald frame I and is led to the mesh surface of the fabric, and binding yarn II passes through the guide needle of the transverse heald frame II and is led to the mesh surface of the fabric, and binding yarn I and binding yarn II are set in pairs. The specific method for binding warp and weft yarns is as follows: Step 1: Binding yarn I and binding yarn II are moved laterally and cross above the warp yarns; Step 2: After the horizontal crossing, binding yarn I and binding yarn II descend simultaneously, and the warp yarn with the same reed eye forms weave point II; Step 3: After the weft yarn passes through the alternating weft insertion points I and II, the weft beat-up operation is performed by the horizontally moving reed; Step 4: After the warp yarns move up and down alternately, binding yarn I and binding yarn II rise simultaneously above the warp yarns; Step 5: Binding yarn I and binding yarn II move in the opposite direction to the previous lateral movement above the warp yarn to achieve a new crossover; then repeat steps 2 to 5 in a loop to achieve continuous binding of the warp and weft yarns.

[0012] Preferably, at least one warp yarn passes through the same reed eyelet.

[0013] Beneficial effects: This invention provides a warp and weft yarn binding device and method for single-sided mesh weaving, which has the following advantages: (1) This invention achieves synchronous horizontal movement and synchronous lifting of the binding yarn through the mechanical linkage between the horizontal movement lifting mechanism, the heald frame lifting mechanism and the horizontal movement heald frame. This not only enables the cross binding of warp and weft yarns of single-sided grid fabric, avoiding relative displacement, loose structure or irreversible deformation between warp and weft yarns, but also avoids the problem of asynchronous rhythm caused by traditional manual or single-action mechanisms. It can significantly improve weaving efficiency and ensure that the binding force of each grid node is consistent, making it suitable for high-speed and mass production.

[0014] (2) In this invention, the adjustable heald rod and guide wheel assembly can be designed to flexibly adjust the transverse movement and lifting height according to different yarn thicknesses, mesh sizes or weaving densities, thus expanding the applicable scenarios of the device and making it suitable for the production of single-sided mesh fabrics of various specifications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1; Figure 2 This is a top view of the structure in Embodiment 1; Figure 3 This is a schematic diagram of the binding yarn connection in Embodiment 1; In the diagram: 1. Horizontal lifting mechanism, 1-1. Telescopic drive component, 1-2. Rotating plate I, 1-3. Rotating plate II, 1-4. Drive linkage, 1-5. Adjustable heald lifting linkage I, 1-6. Horizontal heald lifting plate I, 2. Horizontal heald lifting plate II, 3. Horizontal linkage assembly, 4. Guide wheel assembly I, 5. Guide wheel plate 5-1. Inner guide wheel 5-2. Outer guide wheel 5-3. Clamping groove 5-4. Guide wheel assembly II, 6. Horizontal heald frame I, 7. Horizontal heald frame II, 8. Frame, 9. Yarn guide needle, 10. Needle hole 10-1. Binding yarn I, 11. Binding yarn II, 12. Warp yarn, 13. Horizontal reed, 14. Weft yarn. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application. Example

[0017] like Figure 1-2 As shown, a warp and weft yarn binding device for single-sided mesh weaving includes a transverse lifting mechanism 1, a transverse heddle lifting plate I2, a transverse heddle lifting plate II3, a heddle frame lifting mechanism, two sets of transverse connecting rod assemblies 4, a guide wheel assembly I5, a guide wheel assembly II6, a transverse heddle frame I7, and a transverse heddle frame II8. The lifting drive end of the transverse lifting mechanism 1 is connected to the transverse heddle lifting plate I2 and the transverse heddle lifting plate II3 respectively, driving the transverse heddle lifting plate I2 and the transverse heddle lifting plate II3 to perform synchronous lifting and lowering movements.

[0018] The transverse lifting plate I2 and the transverse lifting plate II3 are distributed on both sides of the frame 9 along the axis. The transverse lifting plate I2 and the transverse lifting plate II3 are connected to the frame 9 through the transverse linkage assembly 4. While the transverse lifting plate I2 and the transverse lifting plate II3 are raised and lowered synchronously, they are driven by the transverse linkage assembly 4 to move reciprocally laterally.

[0019] Guide wheel assembly I5 and guide wheel assembly II6 are respectively mounted on transverse lifting plate I2 and transverse lifting plate II3, and move with transverse lifting plate I2 and transverse lifting plate II3 respectively; The transverse heald frame I7 and transverse heald frame II8 are respectively installed in conjunction with guide wheel assembly I5 and guide wheel assembly II6, and move in a relative or opposite direction with guide wheel assembly I5 and guide wheel assembly II6; The bottom edges of the transverse heald frame I7 and transverse heald frame II8 are respectively connected to the lifting drive end of the heald frame lifting mechanism.

[0020] In this embodiment 1, the horizontal lifting mechanism 1 can be, but is not limited to, the following structure.

[0021] like Figure 1As shown, the transverse lifting mechanism 1 includes a telescopic drive component 1-1, a rotating plate I 1-2, a rotating plate II 1-3, a drive link 1-4, an adjustable lifting link I 1-5, and an adjustable lifting link II 1-6. The central rotation points of the rotating plates I 1-2 and II 1-3 are rotatably mounted on the frame 9. One end of the rotating plates I 1-2 and II 1-3 is rotatably connected to both ends of the drive link 1-4, and the other end is rotatably connected to the bottom ends of the adjustable lifting links I 1-5 and II 1-6, respectively. The telescopic drive end of the telescopic drive component 1-1 is rotatably connected to the rotating plate I 1-2, and the top ends of the adjustable lifting links I 1-5 and II 1-6 are rotatably connected to the transverse lifting plate I and transverse lifting plate II, respectively.

[0022] In this invention, rotating plates I1-2 and II1-3 can be rotating cams. Those skilled in the art can design the curves of the rotating cams according to actual needs to meet the lateral movement requirements of the transverse heald frame I and transverse heald frame II, which is a conventional technical means.

[0023] In this embodiment 1, both the adjustable lifting rod I and the adjustable lifting rod II are rods with adjustable lengths. In this invention, the heights of the transverse lifting plate I and the transverse lifting plate II can be adjusted by adjusting their telescopic lengths.

[0024] In this invention, the initial position and the limit position of the lifting stroke of the transverse lifting plate I2 or II3 can be directly changed by adjusting the length of the adjustable lifting link. Extending the adjustable lifting link will raise the overall working height of the lifting plate; shortening it will lower it. This allows the equipment to quickly adapt to different process requirements.

[0025] In this embodiment 1, the transverse linkage assembly 4 includes two transverse linkages 4-1 arranged parallel to each other vertically, and one end of each transverse linkage 4-1 is rotatably connected to the frame 9, and the other end is rotatably connected to the side of the transverse lifting plate I2 or the transverse lifting plate II3.

[0026] In this invention, the transverse linkage assembly 4 is a parallel linkage structure. Since the two transverse linkages 4-1 remain parallel, they collectively restrict the transverse lifting plate to only perform translational movement, preventing rotation or tilting. This ensures that the movement trajectories of the guide wheel assemblies 15 and 26 on the transverse lifting plate I2 and II3 conform to the preset transverse path. Furthermore, when the transverse lifting mechanism 1 drives the transverse lifting plates I2 and II3 to rise, the parallel linkage structure forces them to move simultaneously in one direction (e.g., towards each other); when descending, it forces them to move in another direction (e.g., away from each other). This "one-movement-at-a-time" coupling relationship is guaranteed by the geometry of the parallel linkage, requiring no additional independent control, resulting in high reliability of the mechanical linkage.

[0027] In this embodiment 1, the guide wheel assembly I5 includes a guide wheel plate 5-1, at least one inner guide wheel 5-2, and at least one outer guide wheel 5-3. The guide wheel plate 5-1 is mounted on the side of the transverse heald lifting plate I2. The inner guide wheel 5-2 and the outer guide wheel 5-3 are rotatably mounted on the same side of the guide wheel plate 5-1 in a one-to-one correspondence. The rotation axes of the inner guide wheel 5-2 and the outer guide wheel 5-3 are perpendicular to the transverse heald lifting plate I2, and a clamping groove 5-4 is formed between the inner guide wheel 5-2 and the outer guide wheel 5-3 arranged opposite to each other for clamping the side of the transverse heald frame I7. The structure of the guide wheel assembly II6 is the same as that of the guide wheel assembly I5, and it is used to clamp the side of the transverse heald frame II8.

[0028] In this invention, the sides of the transverse heald frames I7 and II8 move up and down along the clamping groove 5-4 during the lifting process. In this invention, guide wheel assemblies I5 and II6, through their clamping grooves 5-4, transmit only the transverse movement of the combined motion of the transverse heald lifting plates I2 and II3 to the transverse heald frame, while simultaneously allowing the transverse heald frames I7 and II8 to slide freely up and down within the clamping grooves 5-4, completing independent lifting movements. In this invention, the heald frame lifting mechanism is existing technology; any existing lifting device capable of driving the transverse heald frame to make periodic up and down movements is applicable.

[0029] In this embodiment 1, a plurality of yarn guide needles 10 are arranged on the top edge of the transverse heald frame I 7 and the transverse heald frame II 8, and the top end of the yarn guide needle 10 is provided with a needle hole 10-1 for passing through the binding yarn.

[0030] In this embodiment 1, the working principle of the warp and weft yarn binding device is as follows: The telescopic drive component 1-1 drives the rotating plate I1-2 to reciprocate through telescopic movement, which in turn drives the rotating plate II1-3 to rotate synchronously with the rotating plate I1-2 via the drive link 1-4. The movement of the rotating plates I1-2 and II1-3 is ultimately converted into the synchronous lifting and lowering of the adjustable lifting link I1-5 and adjustable lifting link II1-6, thereby driving the transverse lifting plate I2 and transverse lifting plate II3 to perform synchronous reciprocating lifting and lowering movements. During the lifting and lowering movement of the transverse lifting plate I2, due to the constraint of the transverse link assembly, the transverse lifting plate I performs reciprocating lateral movement. Similarly, the transverse lifting plate II3 performs reciprocating lateral movement under the constraint of the transverse link assembly. During the upward movement of the transverse lifting plates I and II3, they respectively perform relative movement under the constraint of the transverse link assembly. At the same time, the reciprocating lateral movement of the transverse lifting heald plates I2 and II3, respectively, clamps and drives the transverse heald frames I7 and II8 through the guide wheel assembly I5 and guide wheel assembly II6, causing them to generate lateral displacement.

[0031] Under the lifting drive of the heald frame lifting mechanism, the transverse heald frame I7 and transverse heald frame II8 move up and down along the clamping grooves of guide wheel assembly I5 and guide wheel assembly II6, respectively.

[0032] During the lifting and lowering process, the transverse heald plate I2 and transverse heald plate II3 are constrained by the transverse linkage assembly 4 to maintain their movement trajectory: when rising, the transverse heald plate I2 and transverse heald plate II3 move laterally towards each other, causing the yarns on the transverse heald frame I7 and transverse heald frame II8 to cross; when falling, the two move laterally in opposite directions, releasing the cross-yarn state.

[0033] A method for binding warp and weft yarns in single-sided mesh weaving, based on the binding device of Embodiment 1, sets yarn parameters, such as... Figure 3 As shown, binding yarn I11 passes through the guide needle of the transverse heald frame I7 and is led to the mesh surface of the fabric, while binding yarn II12 passes through the guide needle of the transverse heald frame II8 and is led to the mesh surface of the fabric. Binding yarn I11 and binding yarn II12 are arranged in pairs and pass through the same reed eye of the translational reed 14 together with a set of warp yarns 13. The arranged warp yarns 13 alternately form weft weft I, which is used to pass the weft yarn. The specific method of warp and weft binding is as follows: Step 1: Binding yarn I 11 and binding yarn II 12 move laterally above warp yarn 13 and cross each other; Step 2: After the horizontal crossing, the binding yarn I11 and binding yarn II12 descend simultaneously, forming weave point II with the warp yarn 13 of the same reed eye; Step 3: After the weft yarn 15 passes through the alternating weft insertion points I and II, it is beaten in by the translational reed 14; Step 4: After the warp yarns 13 move up and down alternately, the binding yarns I 11 and II 12 rise simultaneously above the warp yarns 13; Step 5: Binding yarn I 11 and binding yarn II 12 move in the opposite direction to the previous lateral movement above warp yarn 13 to achieve a new crossover; then repeat steps 2 to 5 in a loop to achieve continuous binding of warp and weft yarns.

[0034] In this invention, at least one warp yarn 13 passes through the same reed eye; preferably, as shown in this embodiment, two warp yarns pass through the same reed eye, and the two yarns move synchronously. Along the warp yarn arrangement direction, the warp yarns form the weave opening I by alternating up and down movements, and the specific alternation method (e.g., alternating up and down) can be designed and adjusted by those skilled in the art according to the actual fabric structure requirements.

[0035] In this invention, the structure of the translational reed and the translational movement are conventional settings. The translational reed is set between the transverse heald frame and the mesh fabric winding device to achieve weft insertion.

[0036] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A warp and weft yarn binding device for single-sided mesh weaving, characterized in that, It includes a horizontal lifting mechanism, a horizontal lifting heddle plate I, a horizontal lifting heddle plate II, a heddle frame lifting mechanism, two sets of horizontal linkage assemblies, a guide wheel assembly I, a guide wheel assembly II, a horizontal heddle frame I, and a horizontal heddle frame II. The lifting drive end of the horizontal lifting mechanism is connected to the horizontal lifting heddle plate I and the horizontal lifting heddle plate II respectively, driving the horizontal lifting heddle plate I and the horizontal lifting heddle plate II to perform synchronous lifting and lowering movements. The transverse heddle plate I and transverse heddle plate II are distributed on both sides of the axial direction of the weaving machine. The transverse heddle plate I and transverse heddle plate II are connected to the frame through the transverse linkage assembly. While the transverse heddle plate I and transverse heddle plate II are raised and lowered synchronously, they are driven by the transverse linkage assembly to move reciprocally laterally. Guide wheel assembly I and guide wheel assembly II are respectively installed on transverse lifting plate I and transverse lifting plate II, and move with transverse lifting plate I and transverse lifting plate II respectively; The transverse heald frame I and transverse heald frame II are respectively installed in conjunction with guide wheel assembly I and guide wheel assembly II, and move in a relative or opposite direction with guide wheel assembly I and guide wheel assembly II; The bottom edges of the transverse heald frame I and transverse heald frame II are respectively connected to the lifting drive end of the heald frame lifting mechanism.

2. The warp and weft yarn binding device for single-sided mesh weaving according to claim 1, characterized in that, The transverse lifting mechanism includes a telescopic drive component, a rotating plate I, a rotating plate II, a drive link, an adjustable lifting link I, and an adjustable lifting link II. The central rotation points of the rotating plates I and II are rotatably mounted on the frame. One end of the rotating plates I and II is rotatably connected to both ends of the drive link, and the other end is rotatably connected to the bottom ends of the adjustable lifting links I and II, respectively. The telescopic drive end of the telescopic drive component is rotatably connected to the rotating plate I. The top ends of the adjustable lifting links I and II are rotatably connected to the transverse lifting plate I and transverse lifting plate II, respectively.

3. The warp and weft yarn binding device for single-sided mesh weaving according to claim 1, characterized in that, Both the adjustable lifting link I and the adjustable lifting link II are links whose lengths can be extended or retracted.

4. The warp and weft yarn binding device for single-sided mesh weaving according to claim 1, characterized in that, The transverse linkage assembly includes two transverse linkages arranged parallel to each other vertically, with one end of each transverse linkage rotatably connected to the frame and the other end rotatably connected to the side of the transverse lifting plate I or transverse lifting plate II.

5. The warp and weft yarn binding device for single-sided mesh weaving according to claim 1, characterized in that, The guide wheel assembly I includes a guide wheel plate, at least one inner guide wheel, and at least one outer guide wheel. The guide wheel plate is mounted on the side of the transverse heald lifting plate I. The inner and outer guide wheels are rotatably mounted on the same side of the guide wheel plate, and the rotation axes of the inner and outer guide wheels are perpendicular to the transverse heald lifting plate I. A clamping groove is formed between the inner and outer guide wheels, which are arranged opposite to each other, for clamping the side of the transverse heald frame I. The structure of the guide wheel assembly II is the same as that of the guide wheel assembly I, and it is used to clamp the side of the transverse heald frame II.

6. The warp and weft yarn binding device for single-sided mesh weaving according to claim 4, characterized in that, The top edges of the transverse heald frame I and transverse heald frame II are provided with a plurality of yarn guide needles, and the top of the yarn guide needles is provided with a needle hole for passing through the binding yarn.

7. A method for binding warp and weft yarns in single-sided mesh weaving, characterized in that, Based on the binding device according to any one of claims 1-6, the yarn parameters are set, wherein binding yarn I passes through the guide needle of the transverse heald frame I and is led to the mesh surface of the fabric, binding yarn II passes through the guide needle of the transverse heald frame II and is led to the mesh surface of the fabric, and binding yarn I and binding yarn II are arranged in pairs. The specific method for binding warp and weft yarns is as follows: Step 1: Binding yarn I and binding yarn II move laterally above the warp yarns and cross each other; Step 2: After the horizontal crossing, binding yarn I and binding yarn II descend simultaneously, and the warp yarn with the same reed eye forms weave point II; Step 3: After the weft yarn passes through the alternating weft insertion points I and II, the weft beat-up operation is performed by the horizontally moving reed; Step 4: After the warp yarns move up and down alternately, binding yarn I and binding yarn II rise simultaneously above the warp yarns; Step 5: Binding yarn I and binding yarn II move in the opposite direction to the previous lateral movement above the warp yarn to achieve a new crossover; then repeat steps 2 to 5 in a loop to achieve continuous binding of the warp and weft yarns.

8. The binding method for single-sided mesh weaving according to claim 1, characterized in that, At least one warp thread passes through the same reed eye.

Images