A tungsten wire woven mesh skew correction method based on latitude and longitude angle

Abstract

This invention relates to the field of metal wire braided mesh correction technology, specifically to a method for correcting skewness in tungsten wire braided mesh based on the warp and weft angle. The method obtains the warp and weft segments of the continuous interlacing nodes of the tungsten wire braided mesh, determines the actual warp and weft angle, and accordingly determines the skew area and correction direction. Based on the interlacing relationship of the warp and weft wires, it divides the mesh into first and second interlacing phase nodes, designating the first interlacing phase node as the release node and the adjacent second interlacing phase node as the anchoring node. A separation displacement is applied to the release node, and a holding force is applied to the anchoring node. A tangential displacement is applied along the correction direction, and correction is performed alternately according to the interlacing phases until the actual warp and weft angle within the skew area enters the allowable range of the target angle. This invention, through the alternating conversion of release and anchoring nodes and local tangential correction, limits the transmission of correction displacement to adjacent meshes, reduces disturbance in the vicinity, and thus improves the accuracy and stability of tungsten wire braided mesh skew correction.

Description

Technical Field

[0001] This invention relates to the field of metal wire braided mesh correction technology, specifically to a method for correcting the skewness of tungsten wire braided mesh based on the warp and weft angle. Background Technology

[0002] Tungsten wire woven mesh is formed by interlacing warp and weft wires. The warp and weft wires contact each other at the interlacing nodes and jointly define the mesh shape. During the weaving and subsequent processing, the warp or weft wires may be locally displaced due to changes in tension, friction and external forces, causing the warp and weft angle to deviate from the target state and forming a skewed mesh surface. Therefore, it is necessary to correct the skewed area to restore the warp and weft angle and the mesh surface shape.

[0003] The existing patent "CN113174740A" discloses "a method for correcting fabric texture and pattern and a weft straightening machine", which detects the weft skew or pattern distortion of the fabric, controls the speed or rotation direction of the independent correcting rollers corresponding to the distorted area, changes the relative running speed of the local area of ​​the fabric, and causes the corresponding weft yarn to advance or lag, thereby achieving the correction of local weft skew and pattern distortion. However, the above-mentioned schemes mainly achieve skew correction by changing the local running speed of the fabric to cause relative displacement of the yarns. The correction process depends on the continuous deformation of the fabric. For tungsten wire mesh with strong contact constraints at the interlacing nodes, the displacement generated by local traction is easily transmitted to adjacent interlacing nodes along the warp or weft yarns. This causes the target area to be adjusted while the position of the adjacent grid changes. When the skew is concentrated in a local grid, the existing method is difficult to take into account both the adjustment of the warp and weft angle in the skewed area and the positional stability of the adjacent area. This can easily lead to an expansion of the correction range or the generation of new local skew. Therefore, there are still certain limitations to the fine correction of local skew of tungsten wire mesh.

[0004] Therefore, this invention proposes a method for correcting the skewness of tungsten wire braided mesh based on the warp and weft angle. Summary of the Invention

[0005] To address the technical problem mentioned in the background art that during the local skew correction process of tungsten wire woven mesh, the correction effect is easily transmitted to adjacent meshes along the warp or weft threads, making it difficult to simultaneously adjust the warp and weft angle in the skewed area and maintain the positional stability of adjacent areas, the purpose of this invention is to provide a tungsten wire woven mesh skew correction method based on the warp and weft angle.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A method for correcting skewness in tungsten wire braided mesh based on the warp and weft angle includes: S1: Obtain the warp and weft segments at the continuous interlacing nodes of the tungsten wire braided mesh, and calculate the actual warp and weft angle; determine the skew area and correction direction based on the deviation between the actual warp and weft angle and the target angle; S2: Based on the interlacing relationship of the warp and weft threads within the skewed area, the interlacing nodes are divided into first interlacing phase nodes and second interlacing phase nodes; the first interlacing phase node is determined as a release node, and the adjacent second interlacing phase node is determined as an anchoring node; S3: Apply a separation displacement perpendicular to the mesh surface to the release node, and perform pressing on the anchor node; according to the correction direction, apply a tangential displacement along the mesh surface to the warp or weft yarn passing through the release node until the actual warp and weft angle change reaches the preset angle change. S4: Restore the interlacing contact of the release node, turning it into an anchor node, and turn the adjacent anchor nodes into release nodes; alternately execute the separation displacement, pressing and tangential displacement along the deflection region according to the interlacing phase until the actual latitude and longitude angles within the deflection region all enter the allowable range of the target angle.

[0007] Furthermore, determining the skew region and the correction direction in S1 includes: Adjacency relationships are established based on the continuous interlacing nodes of the tungsten wire mesh, and the warp and weft segments are determined based on the adjacent warp and weft interlacing nodes to obtain the actual warp and weft angles. Interlacing nodes whose absolute value of the angular deviation between the actual latitude and longitude angle and the target angle is greater than the allowable angular deviation are identified as candidate skew nodes, and a continuous set of candidate nodes is formed based on the adjacency relationship; the consistency of the angular deviation direction is determined according to the angular deviation direction of each candidate skew node in each continuous set of candidate nodes, and the continuous set of candidate nodes whose angular deviation direction consistency reaches a preset consistency threshold is identified as the skew region, and the correction direction is determined according to the angular deviation direction and the relative orientation of the longitude segment and the latitudinal segment.

[0008] Furthermore, the division of the first interleaved phase node and the second interleaved phase node in S2 includes: Obtain the preset vertical interlacing relationship of the tungsten wire mesh, and determine the vertical position relationship between the warp and weft wires based on the warp and weft arrangement positions of each interlacing node in the skewed area; The interlacing nodes where the warp threads are above the weft threads are designated as the first interlacing phase nodes, and the interlacing nodes where the warp threads are below the weft threads are designated as the second interlacing phase nodes.

[0009] Furthermore, determining the release node and the anchoring node in S2 includes: For each of the first interlacing phase nodes, determine the second interlacing phase node that is directly adjacent to each of the first interlacing phase nodes in the longitudinal or latitudinal direction; The first interleaved phase node is determined as the release node, the second interleaved phase node directly adjacent to the first interleaved phase node is determined as the anchor node, and a node correspondence relationship is established between the release node and the corresponding anchor node.

[0010] Furthermore, in step S3, applying the separation displacement to the release node and performing clamping on the anchoring node includes: The separation displacement is applied to the release node so that the warp and weft at the release node are in a separated state that can slide relative to each other along the mesh surface; The anchoring node adjacent to the release node is pressed to keep the warp and weft threads at the anchoring node in a pressed state that restricts relative slippage; the separation state and the pressed state are maintained during the tangential displacement.

[0011] Furthermore, in step S3, performing the tangential displacement according to the correction direction includes: Based on the correction direction and the local orientation of the warp and weft threads passing through the release node, the correction thread and tangential displacement direction are determined; The tangential displacement is applied to the correction thread successively along the tangential displacement direction, and the actual latitude and longitude angle is re-determined after each tangential displacement. The change in the actual latitude and longitude angle is determined based on the actual latitude and longitude angle before and after the tangential displacement, until the change in the actual latitude and longitude angle reaches the preset angle change.

[0012] Furthermore, in S4, alternating correction is performed along the skew region according to the interleaved phase, including: Restore the interlacing contact of the release node and release the pressure of the anchor node, redetermine the actual latitude and longitude angles corresponding to each interlacing node in the skewed area, and determine the maximum angle deviation in the skewed area; When the maximum included angle deviation of the skewed area is greater than the allowable angle deviation corresponding to the target included angle, the release node is converted into the next round of anchoring node, the anchoring node is converted into the next round of release node, and the node in the next round of release node whose actual latitude and longitude included angle does not enter the allowable range of the target included angle is determined as the release node to be corrected; The separation displacement is performed on the release node to be corrected, the holding is performed on the next round anchoring node adjacent to the release node to be corrected, and the tangential displacement is continued.

[0013] Compared with the prior art, the advantages of the present invention are as follows: 1. This invention determines the skew area and correction direction by using the actual latitude and longitude angle, enabling the correction operation to be performed on areas with abnormal latitude and longitude angles, reducing ineffective adjustments to non-skew areas, and improving the targeting of local skew correction.

[0014] 2. This invention divides the release node and anchor node by interleaving phase, which reduces the interleaving constraint of the release node while maintaining the holding state of the adjacent anchor node, so that the tangential correction displacement is concentrated on the target area and reduces the transmission of correction displacement to adjacent grids.

[0015] 3. This invention performs separation, compression and tangential displacement alternately by interlacing phases, and continuously corrects according to the actual latitude and longitude angle, so that the skewed area is gradually restored to the allowable range of the target angle, reducing the possibility of new skews during the local correction process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Fig. 1 This is a schematic diagram of the workflow of the method of the present invention; Fig. 2 This is a schematic diagram illustrating the process of determining the skew region and correction direction according to the present invention. Fig. 3 This is a schematic diagram of the process for determining the release node and anchoring node according to the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] To achieve the above objectives, the present invention provides a method for correcting the skewness of tungsten wire braided mesh based on the warp and weft angle, such as... Figs. 1-3 As shown, the method includes: S1: Obtain the warp and weft segments at the continuous interlacing nodes of the tungsten wire mesh, and calculate the actual warp and weft angle; determine the skew area and correction direction based on the deviation between the actual warp and weft angle and the target angle.

[0020] S101 (Acquisition of Continuous Interlacing Nodes): Acquire the mesh image of the tungsten wire woven mesh to be corrected, identify the warp and weft directions, and determine the interlacing nodes formed by the warp and weft; establish the adjacency relationship between adjacent interlacing nodes according to the warp and weft arrangement relationship to obtain a set of continuous interlacing nodes; S102 (Determination of Actual Latitude and Longitude Angles): For each interlacing node in the set of continuous interlacing nodes, the longitudinal line segment is determined based on the adjacent longitudinal interlacing nodes, and the latitudinal line segment is determined based on the adjacent latitudinal interlacing nodes; the local orientation of the longitudinal and latitudinal line segments is obtained, and the actual latitude and longitude angles corresponding to each interlacing node are determined based on the angular relationship between the two local orientations; wherein, the identification of the warp direction, the identification of the weft direction, the location of the interlacing node, and the calculation of the line segment angles are completed using existing image processing and geometric calculation methods; S103 (Determination of Continuous Candidate Node Set): Compare the actual latitude and longitude angles with the target angles to determine the angular deviation direction corresponding to each interlacing node; ensure that the absolute value of the difference between the actual latitude and longitude angles and the target angles is greater than the allowable angular deviation. The interleaved nodes are identified as candidate skew nodes, and spatially continuous candidate skew nodes are grouped into a continuous candidate node set based on the adjacency relationship; wherein, This indicates the allowable angular deviation corresponding to the target included angle; S104 (Determination of Skew Region): For each set of consecutive candidate nodes, the consistency of the angular deviation direction is determined based on the deviation of the actual latitude and longitude angles of each candidate skew node within the set relative to the target angle. The calculation formula is as follows:

[0021] in, Indicates the first The consistency of the angular deviation direction of a set of consecutive candidate nodes; Indicates the sequence number of the set of consecutive candidate nodes; Indicates the first A continuous set of candidate nodes; Indicates the interleaved node index in the set of consecutive candidate nodes; Indicates the first The actual latitude and longitude angle between the intersecting nodes; Indicates the included angle of the target; The set of consecutive candidate nodes is filtered based on the consistency of the included angle deviation direction: (Constraint S1-2) in, This indicates a preset consistency threshold, and ; The first one that satisfies the constraints A set of consecutive candidate nodes is defined as the skew region, and the skew region is denoted as . Record the actual latitude and longitude angles and the direction of the angle deviation corresponding to each interlacing node within the skewed region; the skewed region is used for the subsequent division of the first and second interlacing phase nodes; S105 (Correction Direction Determination): For each interlacing node within the skewed area, the correction direction is determined based on the deviation direction of the corresponding actual latitude and longitude angle relative to the target angle, combined with the relative orientation of the corresponding longitude and latitudinal segments. When the actual latitude and longitude angle is less than the target angle, the tangential direction along the net surface that increases the actual latitude and longitude angle is determined as the correction direction for the corresponding interlacing node. When the actual latitude and longitude angle is greater than the target angle, the tangential direction along the net surface that decreases the actual latitude and longitude angle is determined as the correction direction for the corresponding interlacing node. Output the skewed region and the correction direction corresponding to each interlacing node; the skewed region is used for subsequent interlacing phase division, and the correction direction is used to determine the tangential displacement direction of the warp or weft at the corresponding release node.

[0022] S2: Based on the interlacing relationship of the warp and weft threads within the skewed area, the interlacing nodes are divided into a first interlacing phase node and a second interlacing phase node; the first interlacing phase node is determined as a release node, and the adjacent second interlacing phase node is determined as an anchoring node.

[0023] S201 (Determining the interlacing relationship): Obtain the preset interlacing relationship of the tungsten wire mesh; According to the warp and weft arrangement positions of each interlacing node in the skewed area, the preset upper and lower interlacing relationship is mapped to each interlacing node to determine the upper and lower positional relationship between the warp and weft threads at each interlacing node; the upper and lower positional relationship is associated with the adjacency relationship. S202 (Interlacing Phase Division): Based on the vertical positional relationship of each interlacing node, the interlacing node with the warp yarn above the weft yarn is divided into the first interlacing phase node, and the interlacing node with the warp yarn below the weft yarn is divided into the second interlacing phase node; the first interlacing phase node set and the second interlacing phase node set are formed respectively, and the interlacing phase division result is obtained; S203 (Phase Adjacency Relationship Determination): For each of the first interlacing phase nodes, based on the interlacing phase division result and the adjacency relationship, determine the interlacing nodes that are directly adjacent in the meridional direction and directly adjacent in the latitudinal direction within the skew region; Determine whether the directly adjacent interleaving nodes belong to the second interleaving phase nodes, and determine the phase adjacency marker: (Phase adjacency determination function S2-1) in, Indicates the first The first interleaving phase node and the first Phase adjacency markers between interleaved nodes; The node number representing the first interleaved phase node; Indicates the sequence number of the interleaved node participating in the phase adjacency determination; Indicates the first One interwoven node; Represents the set of nodes for the second interleaving phase; Indicates the first The set of the first interlacing phase node in the skew region consisting of the meridional and latitudinal directly adjacent nodes; Indicates the first The interleaving node is related to the first... The second interleaved phase node is directly adjacent to the first interleaved phase node; S204 (Determination of the set of adjacent second interleaving phase nodes): Based on the phase adjacency markers, determine the set of adjacent second interleaving phase nodes corresponding to each first interleaving phase node: (Set definition S2-2) in, Indicates the first The set of adjacent second interleaved phase nodes corresponding to each first interleaved phase node; Indicates the first One interwoven node; The set of adjacent second interleaving phase nodes consists of second interleaving phase nodes that are directly adjacent to the corresponding first interleaving phase node; S205 (Establishing the correspondence between release nodes and anchor nodes): Determine the first interleaved phase node as the release node, and determine the interleaved nodes in the set of adjacent second interleaved phase nodes corresponding to each release node as anchor nodes; establish the node correspondence between each release node and its corresponding anchor node; output the release node, the anchor node, and the node correspondence; The release node is used to subsequently apply a separation displacement perpendicular to the mesh surface, the anchoring node is used to subsequently perform clamping, and the node correspondence is used to subsequently define the local anchoring position corresponding to each release node when performing tangential displacement.

[0024] S3: Apply a separation displacement perpendicular to the mesh surface to the release node, and perform pressing on the anchor node; according to the correction direction, apply a tangential displacement along the mesh surface to the warp or weft yarn passing through the release node until the actual warp and weft angle change reaches the preset angle change.

[0025] S301 (Correction Node Association Determination): Based on the node correspondence between the release nodes and the anchoring nodes, determine each release node and its corresponding anchoring node; obtain the warp and weft threads passing through the release nodes, and associate each release node with the corresponding correction direction and the actual warp and weft angle; S302 (Release Node Separation and Anchor Node Holding): A separation displacement perpendicular to the mesh surface is applied to the release node to reduce the contact pressure between the warp and weft yarns at the release node, allowing the warp and weft yarns at the release node to slide relative to each other along the mesh surface; holding is performed on the anchor node corresponding to the release node to maintain the interlacing contact between the warp and weft yarns at the anchor node and restrict the relative sliding between the warp and weft yarns at the anchor node. During subsequent tangential displacement, the separation state of the release node and the holding state of the anchor node are maintained. In one embodiment, a separation actuator movable along the normal direction of the mesh surface acts on the warp or weft yarn located above the release node, causing it to undergo the separation displacement relative to the weft or warp yarn located below; a holding actuator acts on the warp and weft yarn interlacing position at the anchor node to maintain the holding state of the anchor node; the positions of the separation actuator and the holding actuator are determined according to the node correspondence between the release node and the anchor node, respectively. S303 (Determination of Correction Thread and Tangential Displacement Direction): Based on the correction direction and the local orientation of the warp and weft threads passing through the release node, determine the correction thread that performs the tangential displacement from the warp and weft threads; determine the direction along the mesh surface that causes the actual warp and weft angle to change toward the target angle as the tangential displacement direction; The angle correction direction marker is determined based on the relationship between the actual latitude and longitude angle before the current tangential correction and the target angle. When the actual latitude and longitude angle is less than the target angle, When the actual latitude and longitude angle is greater than the target angle, ;in, Indicates the sequence number of the node to be released; S304 (Tangential Displacement Execution and Angle Update): Maintaining the separation state of the release node and the holding state of the anchor node, apply tangential displacement to the correction thread successively along the tangential displacement direction; record the actual latitude and longitude angle corresponding to the release node before the tangential displacement is executed, and after each tangential displacement, reacquire the longitude and latitudinal segments corresponding to the release node, and redetermine the actual latitude and longitude angle; S305 (Determination of Actual Latitude and Longitude Angle Change): Based on the actual latitude and longitude angle before and after the tangential displacement and the angle correction direction mark, calculate the actual latitude and longitude angle change corresponding to the release node:

[0026] in, Indicates the first The release node completes the first... The actual change in the latitude and longitude angle after the second tangential displacement; Indicates the tangential displacement execution sequence number; Indicates the first Angle correction direction markings for each release node; Indicates the first The actual latitude and longitude angle before the current tangential correction is performed at each release node; Indicates the first The release node completes the first... The actual latitude and longitude angle after the second tangential displacement; S306 (Tangential Displacement Termination Determination): Compare the actual change in the latitude and longitude angle with the preset angle change, and satisfy the following conditions: (Constraint S3-2) in, Indicates the preset angle change; The preset angle change is not greater than the absolute value of the angle deviation between the actual latitude and longitude angle and the target angle before the current tangential correction; When the actual latitude and longitude angle change does not meet the tangential displacement termination constraint condition, the tangential displacement continues to be applied to the correction thread, and the actual latitude and longitude angle and the actual latitude and longitude angle change are updated; when the actual latitude and longitude angle change meets the tangential displacement termination constraint condition, the tangential displacement of the corresponding release node is stopped, and the separation state of the release node and the holding state of the anchor node are maintained. The updated actual latitude and longitude angles are output for subsequent restoration of the interlacing contact of the released nodes.

[0027] S4: Restore the interlacing contact of the release node, turning it into an anchor node, and turn the adjacent anchor nodes into release nodes; alternately execute the separation displacement, pressing and tangential displacement along the deflection region according to the interlacing phase until the actual latitude and longitude angles within the deflection region all enter the allowable range of the target angle.

[0028] S401 (Release Node Interlacing Contact Restoration): When the actual change in the warp and weft angle satisfies the tangential displacement termination constraint condition, stop the tangential displacement of the corresponding release node; remove the separation displacement applied to the release node, so that the warp and weft threads at the release node re-form interlacing contact; release the pressure of the anchoring node corresponding to the release node, so that both the release node and the anchoring node are in an interlacing contact state; S402 (Skew Region Angle Update): Reacquire the meridional and latitudinal segments corresponding to each interlacing node within the skew region, and redetermine the actual meridional and latitudinal angles of each interlacing node; based on the deviation between the updated actual meridional and latitudinal angles and the target angle, calculate the... Maximum included angle deviation in the skew region after wheel interlacing phase correction: (Function S4-1) in, Indicates completion of the first The maximum included angle deviation in the skew region after wheel interlacing phase correction; Indicates the interleaved phase alternation correction sequence number; S1 indicates the first A skewed area; Indicates the sequence number of the interlacing nodes within the skew region; Indicates completion of the first After phase correction of wheel interleaving The actual latitude and longitude angle between the intersecting nodes; Indicates the included angle of the target; S403 (Alternating Correction Termination Judgment): Compare the maximum included angle deviation of the skew region with the allowable angle deviation, and satisfy: (Constraint S4-2) in, This represents the allowable angular deviation determined by S1; The allowable range of the target included angle is: to When the maximum included angle deviation of the skew region meets the alternating correction termination constraint condition, the interleaving phase alternating correction is stopped; when the maximum included angle deviation of the skew region does not meet the alternating correction termination constraint condition, a node state transition is performed. S404 (Node State Transition and Correspondence Update): The released node that has restored interleaved contact is converted into the next round of anchoring node, and the anchoring node that has been released from pressure is converted into the next round of release node; according to the node correspondence between the released node and the anchoring node before the state transition, the next round of node correspondence is established between each original anchoring node and the corresponding original released node, so as to obtain the next round of release node, the next round of anchoring node and their node correspondence; S405 (Interlaced Phase Alternation Correction): Based on the updated actual latitude and longitude angle, the nodes in the next round of release nodes whose actual latitude and longitude angle does not fall within the allowable range of the target angle are identified as release nodes to be corrected; a separation displacement perpendicular to the mesh surface is applied to the release nodes to be corrected, and a holding is performed on the next round of anchoring nodes corresponding to the release nodes to be corrected; Based on the deviation direction of the actual latitude and longitude angle relative to the target angle, and combined with the relative orientation of the corresponding longitude and latitudinal segments, the correction direction of the release node to be corrected is updated, and the corresponding correction thread, tangential displacement direction, and angle correction direction mark are determined. The actual latitude and longitude angle before the current tangential displacement is recorded, and the tangential displacement is applied successively. The actual latitude and longitude angle change is updated according to the actual latitude and longitude angle change calculation function until the tangential displacement termination constraint condition is met. After completing the tangential correction of the current interlacing phase, execution returns to S401, and the alternating correction continues along the skew region according to the interlacing phase.

[0029] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0030] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for correcting the skewness of tungsten wire braided mesh based on the angle between warp and weft, characterized in that, include: S1: Obtain the warp and weft segments at the continuous interlacing nodes of the tungsten wire braided mesh, and calculate the actual warp and weft angle; determine the skew area and correction direction based on the deviation between the actual warp and weft angle and the target angle; S2: Based on the interlacing relationship of the warp and weft threads within the skewed area, the interlacing nodes are divided into first interlacing phase nodes and second interlacing phase nodes; the first interlacing phase node is determined as a release node, and the adjacent second interlacing phase node is determined as an anchoring node; S3: Apply a separation displacement perpendicular to the mesh surface to the release node, and perform pressing on the anchor node; according to the correction direction, apply a tangential displacement along the mesh surface to the warp or weft yarn passing through the release node until the actual warp and weft angle change reaches the preset angle change. S4: Restore the interlacing contact of the release node, turning it into an anchor node, and turn the adjacent anchor nodes into release nodes; alternately execute the separation displacement, pressing and tangential displacement along the deflection region according to the interlacing phase until the actual latitude and longitude angles within the deflection region all enter the allowable range of the target angle.

2. The method for correcting the skewness of tungsten wire braided mesh based on the warp and weft angle according to claim 1, characterized in that, Determining the skew region and the correction direction in S1 includes: Adjacency relationships are established based on the continuous interlacing nodes of the tungsten wire mesh, and the warp and weft segments are determined based on the adjacent warp and weft interlacing nodes to obtain the actual warp and weft angles. Interlacing nodes whose absolute value of the angular deviation between the actual latitude and longitude angle and the target angle is greater than the allowable angular deviation are identified as candidate skew nodes, and a continuous set of candidate nodes is formed based on the adjacency relationship; the consistency of the angular deviation direction is determined according to the angular deviation direction of each candidate skew node in each continuous set of candidate nodes, and the continuous set of candidate nodes whose angular deviation direction consistency reaches a preset consistency threshold is identified as the skew region, and the correction direction is determined according to the angular deviation direction and the relative orientation of the longitude segment and the latitudinal segment.

3. The method for correcting the skewness of tungsten wire braided mesh based on the warp and weft angle according to claim 1, characterized in that, The division of the first interleaving phase node and the second interleaving phase node in S2 includes: Obtain the preset vertical interlacing relationship of the tungsten wire mesh, and determine the vertical position relationship between the warp and weft wires based on the warp and weft arrangement positions of each interlacing node in the skewed area; The interlacing nodes where the warp threads are above the weft threads are designated as the first interlacing phase nodes, and the interlacing nodes where the warp threads are below the weft threads are designated as the second interlacing phase nodes.

4. The method for correcting the skewness of tungsten wire braided mesh based on the warp and weft angle according to claim 3, characterized in that, Determining the release node and the anchoring node in step S2 includes: For each of the first interlacing phase nodes, determine the second interlacing phase node that is directly adjacent to each of the first interlacing phase nodes in the longitudinal or latitudinal direction; The first interleaved phase node is determined as the release node, the second interleaved phase node directly adjacent to the first interleaved phase node is determined as the anchor node, and a node correspondence relationship is established between the release node and the corresponding anchor node.

5. The method for correcting the skewness of tungsten wire braided mesh based on the warp and weft angle according to claim 1, characterized in that, S3, which involves applying the separation displacement to the release node and applying pressure to the anchor node, includes: The separation displacement is applied to the release node so that the warp and weft at the release node are in a separated state that can slide relative to each other along the mesh surface; The anchoring node adjacent to the release node is pressed to keep the warp and weft threads at the anchoring node in a pressed state that restricts relative slippage; the separation state and the pressed state are maintained during the tangential displacement.

6. The method for correcting the skewness of tungsten wire braided mesh based on the warp and weft angle according to claim 5, characterized in that, The tangential displacement performed in step S3 according to the correction direction includes: Based on the correction direction and the local orientation of the warp and weft threads passing through the release node, the correction thread and tangential displacement direction are determined; The tangential displacement is applied to the correction thread successively along the tangential displacement direction, and the actual latitude and longitude angle is re-determined after each tangential displacement. The change in the actual latitude and longitude angle is determined based on the actual latitude and longitude angle before and after the tangential displacement, until the change in the actual latitude and longitude angle reaches the preset angle change.

7. The method for correcting the skewness of tungsten wire braided mesh based on the warp and weft angle according to claim 1, characterized in that, The S4 step involves alternating correction along the skew region according to the interleaved phase, including: Restore the interlacing contact of the release node and release the pressure of the anchor node, redetermine the actual latitude and longitude angles corresponding to each interlacing node in the skewed area, and determine the maximum angle deviation in the skewed area; When the maximum included angle deviation of the skewed area is greater than the allowable angle deviation corresponding to the target included angle, the release node is converted into the next round of anchoring node, the anchoring node is converted into the next round of release node, and the node in the next round of release node whose actual latitude and longitude included angle does not enter the allowable range of the target included angle is determined as the release node to be corrected; The separation displacement is performed on the release node to be corrected, the holding is performed on the next round anchoring node adjacent to the release node to be corrected, and the tangential displacement is continued.

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