Tilt stretching method of steel wire mesh

Abstract

The present invention discloses a method for inclined stretching of a wire mesh, comprising: cutting a wire mesh with a square grid into a rectangle; performing corrosion treatment on the rectangular wire mesh; performing inclined stretching on the rectangular wire mesh after the corrosion treatment, and during the inclined stretching process, keeping the wire mesh in a straightened state through an elastic mechanism. The present invention can perform corrosion treatment on the wire mesh to loosen the knots of the wire mesh, reduce the difficulty of inclined stretching of the wire mesh grid; and can improve the corrosion treatment efficiency of the wire mesh knots; can also timely dry the wire mesh after the corrosion treatment and blow the residual corrosion solvent on the wire mesh into the treatment pool to avoid the corrosion solvent carried out by the rectangular wire mesh dripping onto the ground and polluting the environment; and can perform inclined stretching on the rectangular wire mesh after the corrosion treatment and drying, stretching the square grid of the wire mesh into a rhombic grid; and during the inclined stretching process, can automatically keep the wire mesh in a straightened state, making the operation of inclined stretching more convenient.

Description

Technical Field

[0001] The present invention relates to a method for obliquely stretching a wire mesh. Background Art

[0002] Screen printing requires a screen plate. Existing wire mesh screen plates generally use a wire mesh with square meshes, and the weft and warp in the square mesh wire mesh are perpendicular to each other. However, using a wire mesh with diamond-shaped (non-square) meshes to prepare a wire brush screen plate has already been an option. This requires obliquely stretching the square meshes of the wire mesh into diamond-shaped meshes (non-square meshes) before preparing the screen plate, so that the weft and warp in the diamond-shaped mesh wire mesh are not perpendicular to each other. However, the knots of the existing wire mesh are not easy to move, and it is not easy to perform the oblique stretching of the meshes. Summary of the Invention

[0003] The purpose of the present invention is to provide a method for obliquely stretching a wire mesh, including:

[0004] Cutting a wire mesh with square meshes into a rectangle;

[0005] Performing a corrosion treatment on the rectangular wire mesh to loosen the knots of the rectangular wire mesh, so as to reduce the difficulty of oblique stretching of the meshes;

[0006] Performing an oblique stretching on the rectangular wire mesh after the corrosion treatment to stretch the square meshes of the wire mesh into diamond-shaped meshes (non-square meshes); and during the oblique stretching process, keeping the wire mesh in a straightened state through an elastic mechanism.

[0007] Preferably, when performing the corrosion treatment on the rectangular wire mesh, spraying a corrosion solvent onto the rectangular wire mesh to improve the corrosion treatment efficiency of the knots of the rectangular wire mesh.

[0008] Preferably, using a solvent treatment device to perform the corrosion treatment on the rectangular wire mesh; the solvent treatment device includes a treatment tank containing a corrosion solvent; completely immersing the rectangular wire mesh in the corrosion solvent in the treatment tank to perform the corrosion treatment on the rectangular wire mesh.

[0009] Preferably, after the corrosion treatment is completed, lifting the rectangular wire mesh to the top of the treatment tank to separate the rectangular wire mesh from the corrosion solvent; then spraying hot air onto the rectangular wire mesh to blow the residual corrosion solvent on the rectangular wire mesh into the treatment tank until the rectangular wire mesh is dried, so as to avoid the corrosion solvent carried out by the rectangular wire mesh dripping onto the ground and polluting the environment.

[0010] Preferably, an inclined stretching device is used to perform inclined stretching on the rectangular steel wire mesh after corrosion treatment; the inclined stretching device comprises: a pair of carrier plates each carrying a clamp, and an elastic mechanism connected to one of the carrier plates; the clamps on the pair of carrier plates are used to clamp a pair of opposite sides of the rectangular steel wire mesh; the steel wire mesh is inclined stretched by driving the pair of carrier plates to move relative to each other; and during the inclined stretching process, the elastic mechanism always applies a force to move the pair of carrier plates away from each other, so that the steel wire mesh remains in a straight state.

[0011] The advantages and beneficial effects of the present invention are as follows: a method for inclined stretching of a wire mesh is provided, which can perform corrosion treatment on the wire mesh to loosen the mesh knots of the wire mesh and reduce the difficulty of inclined stretching of the wire mesh grid; and can improve the corrosion treatment efficiency of the mesh knots of the wire mesh; and can also timely dry the wire mesh after the corrosion treatment, and blow the residual corrosive solvent on the wire mesh into a treatment pool, so as to avoid the corrosive solvent brought out by the rectangular wire mesh from dripping onto the ground and polluting the environment; and can perform inclined stretching on the rectangular wire mesh after the corrosion treatment and drying, and stretch the square grid of the wire mesh into a diamond grid (non-square grid); and in the process of inclined stretching, the wire mesh can be automatically kept in a straight state, so that the operation of inclined stretching is simpler. Implementation

[0012] The specific implementation of the present invention is further described below in conjunction with the examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present invention.

[0013] The present invention provides a method for inclined stretching of a steel wire mesh, comprising the following steps:

[0014] 1) Cut the square mesh wire mesh into rectangles;

[0015] 2) A solvent treatment device is used to perform corrosion treatment on the rectangular steel wire mesh; the solvent treatment device includes a treatment pool containing a corrosion solvent; the rectangular steel wire mesh is completely immersed in the corrosion solvent in the treatment pool, and the corrosion solvent is used to perform corrosion treatment on the rectangular steel wire mesh, so that the mesh knots of the rectangular steel wire mesh are loosened to reduce the difficulty of tilting and stretching the mesh; and when the rectangular steel wire mesh is subjected to corrosion treatment, the corrosion solvent is sprayed on the rectangular steel wire mesh to improve the corrosion treatment efficiency of the mesh knots of the rectangular steel wire mesh; after the corrosion treatment is completed, the rectangular steel wire mesh is lifted to the top of the treatment pool to separate the rectangular steel wire mesh from the corrosion solvent; then hot air is sprayed on the rectangular steel wire mesh to blow the residual corrosion solvent on the rectangular steel wire mesh into the treatment pool until the rectangular steel wire mesh is dried, so as to prevent the corrosion solvent brought out by the rectangular steel wire mesh from dripping onto the ground and polluting the environment;

[0016] 3) Use an inclined stretching device to stretch the rectangular wire mesh after corrosion treatment and drying; the inclined stretching device includes: a pair of carrier plates respectively carrying chucks, and an elastic mechanism connected to one of the carrier plates; use the chucks on the pair of carrier plates to clamp a pair of opposite sides of the rectangular wire mesh; tilt and stretch the wire mesh by driving the relative movement of the pair of carrier plates, stretching the square meshes of the wire mesh into diamond meshes (non-square meshes); and during the inclined stretching process, the elastic mechanism always applies a force to make the pair of carrier plates move away from each other, keeping the wire mesh in a taut state.

[0017] The specific embodiments of the present invention are as follows: Embodiment

[0018] Embodiment 1 provides a method for inclined stretching of a wire mesh, including:

[0019] 1) Cut the wire mesh with square meshes into a rectangle.

[0020] 2) Use a solvent treatment device to perform corrosion treatment on the rectangular wire mesh.

[0021] The solvent treatment device includes: a treatment pool containing a corrosion solvent, a horizontal liquid spraying rack provided at the bottom of the treatment pool, a liquid spraying head array provided on the top surface of the liquid spraying rack, a liquid supply pump provided on the bottom surface of the liquid spraying rack, a liquid supply pipeline connecting the liquid supply pump with each liquid spraying head in the liquid spraying head array, a horizontal lifting frame provided in the treatment pool and above the liquid spraying rack, a left chuck provided on the inner edge of the left end of the lifting frame, a right chuck provided on the inner edge of the right end of the lifting frame, a left sliding seat provided on the outer edge of the left end of the lifting frame, a right sliding seat provided on the outer edge of the right end of the lifting frame, a vertical left sliding rail provided on the left inner wall of the treatment pool and slidably cooperating with the left sliding seat, a vertical right sliding rail provided on the right inner wall of the treatment pool and slidably cooperating with the right sliding seat, a vertical front lifting rod provided on the outer edge of the front end of the lifting frame, a vertical rear lifting rod provided on the outer edge of the rear end of the lifting frame, a horizontal front support convex edge provided on the front inner wall of the treatment pool and between the lifting frame and the liquid spraying rack, a horizontal rear support convex edge provided on the rear inner wall of the treatment pool and between the lifting frame and the liquid spraying rack, a horizontal air jetting rack provided directly above the treatment pool and between the front lifting rod and the rear lifting rod, an air jetting head array provided on the bottom surface of the air jetting rack, an air supply device provided on the top surface of the air jetting rack, and an air supply pipeline connecting the air supply device with each air jetting head in the air jetting head array; the left chuck and the right chuck are arranged facing each other, and the left chuck and the right chuck are used to clamp a pair of opposite sides of the rectangular wire mesh; the left sliding rail and the right sliding rail respectively extend from the bottom end of the treatment pool to above the treatment pool; the front lifting rod and the rear lifting rod respectively extend to above the treatment pool; the front support convex edge and the rear support convex edge both extend close to the liquid spraying rack, the front support convex edge and the rear support convex edge are symmetrically arranged, and the front support convex edge and the rear support convex edge are used to support the lifting frame.

[0022] The corrosion treatment of the rectangular wire mesh by using a solvent treatment device includes: pulling up the lifting frame to the top of the treatment tank through a front lifting rod and / or a rear lifting rod, placing the rectangular wire mesh between a left clamp and a right clamp, and clamping and fixing a pair of opposite sides of the rectangular wire mesh by the left clamp and the right clamp respectively; then lowering the lifting frame through the front lifting rod and / or the rear lifting rod so that the lifting frame is supported by a front support convex edge and a rear support convex edge in the treatment tank; at this time, the rectangular wire mesh is completely immersed in the corrosion solvent in the treatment tank, and the corrosion solvent conducts corrosion treatment on the rectangular wire mesh to loosen the mesh knots of the rectangular wire mesh, so as to reduce the difficulty of inclined stretching of the mesh; and during the corrosion treatment process, a liquid supply pump is turned on, and the liquid supply pump pumps the corrosion solvent in the treatment tank to each spray head in the spray head array, and each spray head in the spray head array sprays the corrosion solvent onto the rectangular wire mesh to improve the solvent treatment efficiency of the wire mesh knots; after the corrosion treatment is completed, the lifting frame is pulled up to the top of the treatment tank through the front lifting rod and / or the rear lifting rod; and an air supply device is turned on, and the air supply device supplies hot air to each air jet head in the air jet head array, and each air jet head in the air jet head array sprays hot air onto the rectangular wire mesh to blow the residual corrosion solvent on the rectangular wire mesh into the treatment tank until the rectangular wire mesh is dried, so as to avoid the corrosion solvent carried out by the rectangular wire mesh dripping onto the ground and polluting the environment; after the rectangular wire mesh is dried, the left clamp and the right clamp are loosened, and the rectangular wire mesh is taken away from the left clamp and the right clamp;

[0023] 3) The inclined stretching device is used to perform inclined stretching on the rectangular wire mesh after corrosion treatment and drying;

[0024] The inclined stretching device includes: a horizontally placed bottom plate, a horizontally placed rear longitudinal moving slide rail arranged on the rear side of the top surface of the bottom plate and extending in the front-rear direction, a horizontally placed rear carrier plate mounted on the rear longitudinal moving slide rail and slidably engaged with the rear longitudinal moving slide rail, a rear chuck arranged on the top surface of the rear carrier plate, a horizontally placed transverse moving slide rail arranged on the front side of the top surface of the bottom plate and extending in the left-right direction, a horizontally placed transverse moving plate mounted on the transverse moving slide rail and slidably engaged with the transverse moving slide rail, a horizontally placed front longitudinal moving slide rail arranged on the top surface of the transverse moving plate and extending in the front-rear direction, a horizontally placed front carrier plate mounted on the front longitudinal moving slide rail and slidably engaged with the front longitudinal moving slide rail, a front chuck arranged on the top surface of the front carrier plate, a convex strip arranged on the front end of the top surface of the transverse moving plate and extending in the left-right direction, a plurality of horizontally placed springs arranged between the front carrier plate and the convex strip and all extending in the front-rear direction, a horizontally placed longitudinal moving driving screw rod passing through the rear carrier plate and driving the rear carrier plate to move in the front-rear direction, and a horizontally placed transverse moving driving screw rod passing through the transverse moving plate and driving the transverse moving plate to move in the left-right direction; the transverse moving plate is located directly in front of the rear carrier plate; the front carrier plate is located in the middle of the top surface of the transverse moving plate, the front carrier plate is located directly in front of the rear carrier plate, and the front carrier plate is located directly behind the convex strip; the front chuck and the rear chuck are arranged facing each other, and the front chuck and the rear chuck are used for clamping a pair of opposite sides of a rectangular wire mesh; the front chuck and the rear chuck can adopt the chucks of existing wire drawing machines; both ends of the above-mentioned plurality of springs are respectively connected to the front end of the front carrier plate and the convex strip, and the plurality of springs are arranged at equal intervals in the left-right direction; the longitudinal moving driving screw rod extends in the front-rear direction; the rear carrier plate is provided with a threaded through hole penetrated by the longitudinal moving driving screw rod, and the rear carrier plate is in threaded cooperation with the longitudinal moving driving screw rod; the longitudinal moving driving screw rod is connected to the rear end of the top surface of the bottom plate through a rear bearing; the rear bearing is sleeved on the longitudinal moving driving screw rod, the inner ring of the rear bearing is fixedly connected to the longitudinal moving driving screw rod, and the outer ring of the rear bearing is fixedly connected to the rear end of the top surface of the bottom plate; the rear end of the longitudinal moving driving screw rod extends to the outside of the bottom plate, and a longitudinal moving crank is arranged at the rear end of the longitudinal moving driving screw rod; the transverse moving driving screw rod extends in the left-right direction; the transverse moving plate is provided with a threaded through hole penetrated by the transverse moving driving screw rod, and the transverse moving plate is in threaded cooperation with the transverse moving driving screw rod; the transverse moving driving screw rod is connected to the left end of the top surface of the bottom plate through a left bearing; the left bearing is sleeved on the transverse moving driving screw rod, the inner ring of the left bearing is fixedly connected to the transverse moving driving screw rod, and the outer ring of the left bearing is fixedly connected to the left end of the top surface of the bottom plate; the left end of the transverse moving driving screw rod extends to the outside of the bottom plate, and a transverse moving crank is arranged at the left end of the transverse moving driving screw rod;

[0025] The inclined stretching of the rectangular wire mesh after corrosion treatment by using an inclined stretching device includes: rotating the forward transverse movement crank to make the transverse movement driving screw rotate forward and drive the transverse movement plate to move leftward along the transverse movement slide rail. The front loading plate on the transverse movement plate moves leftward synchronously with the transverse movement plate until the front clamp on the front loading plate faces the rear clamp on the rear loading plate. Then rotate the forward longitudinal movement crank to make the longitudinal movement driving screw rotate forward and drive the rear loading plate to move forward along the rear longitudinal movement slide rail until the distance between the front clamp and the rear clamp is less than the distance between a pair of opposite sides of the rectangular wire mesh. Then place the wire mesh between the front clamp and the rear clamp, and clamp and fix the above-mentioned pair of opposite sides of the rectangular wire mesh by the front clamp and the rear clamp respectively. Then reverse the longitudinal movement crank to make the longitudinal movement driving screw rotate reversely and drive the rear loading plate to move backward along the rear longitudinal movement slide rail until the front clamp and the rear clamp stretch and tighten the rectangular wire mesh. At this time, the weft of the rectangular wire mesh is arranged in the left-right direction, the warp of the rectangular wire mesh is arranged in the front-rear direction, and multiple springs at the front end of the front loading plate apply a forward pulling force to the front loading plate. Then reverse the transverse movement crank to make the transverse movement driving screw rotate reversely and drive the transverse movement plate to move rightward along the transverse movement slide rail. The front loading plate on the transverse movement plate moves rightward synchronously with the transverse movement plate. During the rightward movement of the transverse movement plate, multiple springs at the front end of the front loading plate always apply a forward pulling force to the front loading plate, thereby keeping the wire mesh in a straightened state. Until the included angle between the warp of the wire mesh and the front-rear direction reaches 7-20 degrees. At this time, the mesh of the wire mesh is a rhombus (not a square). Then loosen the front clamp and the rear clamp, and take away the wire mesh with a rhombus mesh (not a square mesh) from the front clamp and the rear clamp.

[0026] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A method for inclined stretching of a wire mesh, characterized in that, Including: 1) Cutting a wire mesh of a square grid into a rectangle; 2) Corroding the rectangular wire mesh by using a solvent treatment device; The solvent treatment device includes: a treatment tank storing a corrosive solvent, a horizontally placed liquid spraying rack arranged at the bottom of the treatment tank, a liquid spraying head array arranged on the top surface of the liquid spraying rack, a liquid supply pump arranged on the bottom surface of the liquid spraying rack, a liquid supply pipeline connecting the liquid supply pump with each liquid spraying head in the liquid spraying head array respectively, a horizontally placed lifting frame arranged in the treatment tank and above the liquid spraying rack, a left clamp arranged on the inner edge of the left end of the lifting frame, a right clamp arranged on the inner edge of the right end of the lifting frame, a left sliding seat arranged on the outer edge of the left end of the lifting frame, a right sliding seat arranged on the outer edge of the right end of the lifting frame, a vertically placed left slide rail arranged on the left inner wall of the treatment tank and slidably matched with the left sliding seat, a vertically placed right slide rail arranged on the right inner wall of the treatment tank and slidably matched with the right sliding seat, a vertically placed front lifting rod arranged on the outer edge of the front end of the lifting frame, a vertically placed rear lifting rod arranged on the outer edge of the rear end of the lifting frame, a horizontally placed front support convex edge arranged on the front inner wall of the treatment tank and between the lifting frame and the liquid spraying rack, a horizontally placed rear support convex edge arranged on the rear inner wall of the treatment tank and between the lifting frame and the liquid spraying rack, a horizontally placed air jetting rack arranged directly above the treatment tank and between the front lifting rod and the rear lifting rod, an air jetting head array arranged on the bottom surface of the air jetting rack, an air supply device arranged on the top surface of the air jetting rack, and an air supply pipeline connecting the air supply device with each air jetting head in the air jetting head array respectively; the left clamp and the right clamp are arranged facing each other, and the left clamp and the right clamp are used for clamping a pair of opposite sides of the rectangular wire mesh; the left slide rail and the right slide rail respectively extend from the bottom end of the treatment tank to above the treatment tank; the front lifting rod and the rear lifting rod respectively extend to above the treatment tank; the front support convex edge and the rear support convex edge both extend close to the liquid spraying rack, the front support convex edge and the rear support convex edge are symmetrically arranged, and the front support convex edge and the rear support convex edge are used for supporting the lifting frame; The corrosion treatment of the rectangular wire mesh by using a solvent treatment device includes: pulling up the lifting frame to the top of the treatment tank through the front lifting rod and / or the rear lifting rod, placing the rectangular wire mesh between the left clamp head and the right clamp head, and clamping and fixing a pair of opposite sides of the rectangular wire mesh by the left clamp head and the right clamp head respectively; then lowering the lifting frame through the front lifting rod and / or the rear lifting rod so that the lifting frame is supported by the front support convex edge and the rear support convex edge in the treatment tank; at this time, the rectangular wire mesh is completely immersed in the corrosion solvent in the treatment tank, and the corrosion solvent corrodes the rectangular wire mesh to loosen the mesh knots of the rectangular wire mesh, so as to reduce the difficulty of inclined stretching of the mesh; and during the corrosion treatment process, the liquid supply pump is turned on, and the liquid supply pump pumps the corrosion solvent in the treatment tank to each spray head in the spray head array, and each spray head in the spray head array sprays the corrosion solvent to the rectangular wire mesh to improve the solvent treatment efficiency of the wire mesh knots; after the corrosion treatment is completed, the lifting frame is pulled up to the top of the treatment tank through the front lifting rod and / or the rear lifting rod; and the air supply device is turned on, and the air supply device supplies hot air to each air jet head in the air jet head array, and each air jet head in the air jet head array sprays hot air to the rectangular wire mesh to blow the residual corrosion solvent on the rectangular wire mesh into the treatment tank until the rectangular wire mesh is dried, so as to avoid the corrosion solvent carried out by the rectangular wire mesh dripping on the ground and polluting the environment; after the rectangular wire mesh is dried, the left clamp head and the right clamp head are loosened, and the rectangular wire mesh is taken away from the left clamp head and the right clamp head; 3) The inclined stretching device is used to perform inclined stretching on the rectangular wire mesh after corrosion treatment and drying; The inclined stretching device includes: a horizontally placed bottom plate, a horizontally placed rear longitudinal moving slide rail arranged on the rear side of the top surface of the bottom plate and along the front-rear direction, a horizontally placed rear carrier plate mounted on the rear longitudinal moving slide rail and slidably matched with the rear longitudinal moving slide rail, a rear chuck arranged on the top surface of the rear carrier plate, a horizontally placed transverse moving slide rail arranged on the front side of the top surface of the bottom plate and along the left-right direction, a horizontally placed transverse moving plate mounted on the transverse moving slide rail and slidably matched with the transverse moving slide rail, a horizontally placed front longitudinal moving slide rail arranged on the top surface of the transverse moving plate and along the front-rear direction, a horizontally placed front carrier plate mounted on the front longitudinal moving slide rail and slidably matched with the front longitudinal moving slide rail, a front chuck arranged on the top surface of the front carrier plate, a convex strip arranged on the front end of the top surface of the transverse moving plate and along the left-right direction, a plurality of horizontally placed springs arranged between the front carrier plate and the convex strip and all along the front-rear direction, a horizontally placed longitudinal moving driving screw rod passing through the rear carrier plate and driving the rear carrier plate to move along the front-rear direction, and a horizontally placed transverse moving driving screw rod passing through the transverse moving plate and driving the transverse moving plate to move along the left-right direction; the transverse moving plate is located directly in front of the rear carrier plate; the front carrier plate is located in the middle of the top surface of the transverse moving plate, the front carrier plate is located directly in front of the rear carrier plate, and the front carrier plate is located directly behind the convex strip; the front chuck and the rear chuck are arranged facing each other, and the front chuck and the rear chuck are used for clamping a pair of opposite sides of a rectangular wire mesh; both ends of the plurality of springs are respectively connected to the front end of the front carrier plate and the convex strip, and the plurality of springs are arranged at equal intervals along the left-right direction; the longitudinal moving driving screw rod is arranged along the front-rear direction; the rear carrier plate is provided with a threaded through hole penetrated by the longitudinal moving driving screw rod, and the rear carrier plate is in threaded cooperation with the longitudinal moving driving screw rod; the longitudinal moving driving screw rod is connected to the rear end of the top surface of the bottom plate through a rear bearing; the rear bearing is sleeved on the longitudinal moving driving screw rod, the inner ring of the rear bearing is fixedly connected to the longitudinal moving driving screw rod, and the outer ring of the rear bearing is fixedly connected to the rear end of the top surface of the bottom plate; the rear end of the longitudinal moving driving screw rod extends to the outside of the bottom plate, and a longitudinal moving crank is arranged at the rear end of the longitudinal moving driving screw rod; the transverse moving driving screw rod is arranged along the left-right direction; the transverse moving plate is provided with a threaded through hole penetrated by the transverse moving driving screw rod, and the transverse moving plate is in threaded cooperation with the transverse moving driving screw rod; the transverse moving driving screw rod is connected to the left end of the top surface of the bottom plate through a left bearing; the left bearing is sleeved on the transverse moving driving screw rod, the inner ring of the left bearing is fixedly connected to the transverse moving driving screw rod, and the outer ring of the left bearing is fixedly connected to the left end of the top surface of the bottom plate; the left end of the transverse moving driving screw rod extends to the outside of the bottom plate, and a transverse moving crank is arranged at the left end of the transverse moving driving screw rod; The inclined stretching of the rectangular wire mesh after corrosion treatment by using an inclined stretching device includes: rotating the forward traverse crank to rotate the traverse drive screw forward and drive the traverse plate to move leftward along the traverse slide rail. The front carrier plate on the traverse plate moves leftward synchronously with the traverse plate until the front clamp on the front carrier plate faces the rear clamp on the rear carrier plate. Then rotate the forward longitudinal movement crank to rotate the longitudinal movement drive screw forward and drive the rear carrier plate to move forward along the rear longitudinal movement slide rail until the distance between the front clamp and the rear clamp is less than the distance between a pair of opposite sides of the rectangular wire mesh. Then place the wire mesh between the front clamp and the rear clamp, and clamp and fix the above-mentioned pair of opposite sides of the rectangular wire mesh by the front clamp and the rear clamp respectively. Then reverse the longitudinal movement crank to reverse the longitudinal movement drive screw and drive the rear carrier plate to move backward along the rear longitudinal movement slide rail until the front clamp and the rear clamp stretch and tighten the rectangular wire mesh. At this time, the weft of the rectangular wire mesh is arranged in the left-right direction, the warp of the rectangular wire mesh is arranged in the front-back direction, and multiple springs at the front end of the front carrier plate apply a forward pulling force to the front carrier plate. Then reverse the traverse crank to reverse the traverse drive screw and drive the traverse plate to move rightward along the traverse slide rail. The front carrier plate on the traverse plate moves rightward synchronously with the traverse plate. During the rightward movement of the traverse plate, multiple springs at the front end of the front carrier plate always apply a forward pulling force to the front carrier plate, thereby keeping the wire mesh in a straightened state. Until the angle between the warp of the wire mesh and the front-back direction reaches 7-20 degrees. At this time, the mesh of the wire mesh is diamond-shaped. Then loosen the front clamp and the rear clamp, and take away the wire mesh with diamond-shaped meshes from the front clamp and the rear clamp.