A high-strength geogrid and its manufacturing device

Abstract

The present invention provides a high-strength geogrid and a manufacturing device thereof. The high-strength geogrid comprises transverse strips and longitudinal strips, and the longitudinal strips and the transverse strips are spot-welded to each other to form a mesh structure. In the manufacturing device of the high-strength geogrid, the transverse strips are pulled by a transverse belt feeding mechanism to form a mesh at a right angle of 90° to the longitudinal and longitudinal strips. After the arrangement is completed, the spot welding mechanism automatically starts and welds. After the welding is completed, the finished high-strength geogrid is pulled forward and rolled up. In the present invention, the transverse strips and the longitudinal strips are connected by welding, the welding point strength is high, the geogrid is not easy to break or damage during use, has good durability, the welding time of each group of nodes is short, the welding damage to the longitudinal strips and the transverse strips is small, and the production efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of geogrids, and in particular to a high-strength geogrid and a manufacturing device for the high-strength geogrid. Background Art

[0002] Geogrid is a major geosynthetic material. Compared with other geosynthetics, it has unique properties and functions. It is often used as reinforcement for reinforced soil structures or reinforcement for composite materials. Geogrids can be divided into four categories according to the molding process: welded geogrids, injection-molded geogrids, stretched geogrids and warp-knitted geogrids.

[0003] Among them, the traditional welded polyester geogrid has narrow vertical and horizontal strips, not exceeding 25mm, with more than 14 strips per linear meter and more than 196 welding nodes per square meter. The production efficiency is low, and the contact surface of the welding nodes is large, resulting in a large loss of strength in the vertical and horizontal strips. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a high-strength geogrid and a manufacturing device thereof.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A high-strength geogrid, comprising: transverse strips; longitudinal strips, wherein the longitudinal strips and the transverse strips are spot-welded to form a mesh structure;

[0007] The welding points between the transverse strip and the longitudinal strip are symmetrically distributed about the central axis of the transverse strip or the longitudinal strip, or the welding points are obliquely distributed, and the spot welding is divided into single-sided spot welding or double-sided spot welding. The welding points formed by single-sided spot welding are concave on one side and convex on the other side or concave on one side and flat on the other side, and the welding points formed by double-sided spot welding are concave on both sides or flat on both sides;

[0008] The geogrid formed by spot welding the longitudinal strips and the transverse strips is a unidirectional geogrid or a bidirectional geogrid;

[0009] The transverse strips and the longitudinal strips are made of polyester sheets;

[0010] The thickness of the transverse strip and the longitudinal strip is 0.3-3.0 mm, and the width of the transverse strip and the longitudinal strip is 50-300 mm.

[0011] A manufacturing device for a high-strength geogrid, used for manufacturing a high-strength geogrid, comprising: a plurality of longitudinal tape unwinding reels, the plurality of longitudinal tape unwinding reels are arranged in a single row at equal intervals, the longitudinal tape unwinding reels are wound with the longitudinal tapes, a guide mechanism, the longitudinal tapes are movably connected to the guide mechanism; a transverse tape unwinding reel, the transverse tape unwinding reel is wound with the transverse tapes; a transverse tape feeding mechanism, the transverse tape feeding mechanism is used to convey the transverse tapes on the transverse tape unwinding reel; a spot welding mechanism, the spot welding mechanism comprising a spot welding assembly and a traction assembly, the traction assembly is installed on the spot welding assembly away from the On one side of the guiding mechanism, the longitudinal strip passes through the spot welding assembly and is movably connected to the traction assembly. The transverse belt conveying mechanism is installed on the spot welding assembly, and is used to convey the transverse strip to the longitudinal strip, and is vertically distributed with the longitudinal strip up and down. The spot welding assembly spot welds the longitudinal strip and the transverse strip to form a high-strength geogrid; the traction mechanism, the high-strength geogrid formed by the longitudinal strip and the transverse strip being spot welded and fixed as a whole is movably connected to the traction mechanism; the winding mechanism, the winding mechanism is used to wind up the high-strength geogrid.

[0012] The spot welding assembly includes: a spot welding workbench, a spot welding work area is provided in the spot welding workbench, the spot welding workbench has an entrance and an exit, and a guide roller 4 is installed at the entrance of the spot welding workbench; an ultrasonic generator 1, the ultrasonic generator 1 is installed on the top of the spot welding workbench; a plurality of cylinders 1, the plurality of cylinders 1 are installed at equal intervals on the top of the inside of the spot welding work area, corresponding to the longitudinal strips one by one; a transducer 1, the transducer 1 is electrically connected to the ultrasonic generator 1, and the transducer 1 is fixedly installed on the piston of the cylinder 1 The rod end is provided with a spot welding die head at the bottom of the transducer 1, and a welding head is provided at the bottom of the spot welding die head, and the welding heads are axially symmetrically distributed or obliquely distributed at the bottom of the spot welding die head; a plurality of spot welding bottom molds are evenly spaced and installed at the bottom of the spot welding working area, corresponding to the cylinder 1, and the top of the spot welding bottom mold is a plane or is provided with convex points corresponding to the welding head or is provided with concave points corresponding to the welding head; the welding head cooperates with the spot welding bottom mold to spot weld and fix the longitudinal strip and the transverse strip into one.

[0013] The traction component 1 is installed at the exit of the spot welding workbench, and the traction component 1 includes: a support frame 1, the support frame 1 is fixedly installed on the side of the spot welding workbench; a traction roller 1, the traction roller 1 is rotatably installed on the support frame 1; a motor 1, the motor 1 is fixedly installed on one side of the support frame 1, and the output end of the motor 1 is fixedly connected to the rotating shaft of the traction roller 1; a cylinder 2, the cylinder 2 is installed on the top of the support frame 1; a traction roller 2, the two ends of the traction roller 2 are installed with a bearing seat 1, the bearing seat 1 is fixedly connected to the piston rod end of the cylinder 2, the bearing seat 1 is slidably connected in the support frame 1, and the gap between the traction roller 2 and the traction roller 1 is adjusted by the cylinder 2.

[0014] The guide mechanism includes: a second support frame; a guide roller, which is fixedly installed on both sides of the top of the second support frame; a tensioning roller, a tensioning frame is installed on the second support frame, and the tensioning roller is installed on the tensioning frame and is located below the guide roller. The tensioning roller and the guide roller are distributed in a triangle.

[0015] It also includes a longitudinal belt splicing machine, which is distributed between the guide mechanism and the spot welding mechanism, and includes: a bottom plate, on which a slide rail 1 is installed; a base, which is installed on a slider of the slide rail 1, and a bracket is installed on one side of the top of the base;

[0016] An ultrasonic generator 2, the ultrasonic generator 2 is installed on the base, and a fusion welding bottom mold is installed on the ultrasonic generator 2; a cylinder 3, the cylinder 3 is installed on the bracket; a transducer 2, the transducer 2 is installed on the piston rod end of the cylinder 3, and a fusion welding die head is installed at the bottom of the transducer 2.

[0017] The transverse belt feeding mechanism includes: a traction component three, the traction component three is installed on the side of the spot welding workbench adjacent to the traction component one, the transverse strip on the transverse belt unwinding disk is movably connected to the traction component three, and the traction component three has the same structure as the traction component one; a belt threading mold, the transverse strip is passed through the traction component three to the belt threading mold, the belt threading mold includes an upper mold body and a lower mold body, the upper mold body and the lower mold body are provided with insertion openings, the upper mold body is fixedly connected to a connecting plate through a connecting block, a support plate one is installed on the spot welding workbench, a cylinder four is installed on the support plate one, the The piston rod end of cylinder four passes through the support plate one and is fixedly connected to the connecting plate; a cutting assembly, which is used to cut and shear the transverse strip that passes through the strip-threading die, and the cutting assembly includes cylinder five, which is installed at both ends of the connecting plate, and the piston rod end of cylinder five passes through the connecting plate and is installed with a cutter, and the cutter is located at both ends of the strip-threading die; a pushing assembly, which is symmetrically installed on the spot welding workbench, and the pushing assembly includes slide rail two and slide rail three, one end of the slide rail two is fixedly connected to the spot welding workbench, and the slide rail three is slidably installed on the spot welding workbench through a slider On the slide rail 2, a support plate 2 is installed at one end of the slide rail 2 away from the spot welding workbench, and a cylinder 6 is installed on the support plate 2, and the piston rod end of the cylinder 6 passes through the support plate 2 and is fixedly connected to the side wall of the slide rail 3; a clamping assembly, the clamping assembly clamps and straightens the transverse strip located in the threading mold after cutting, and after clamping and straightening, the transverse strip is moved out of the threading mold to the bottom of the welding head, and the transverse strip and the longitudinal strip are spot-welded and fixedly connected as a whole through the spot welding mechanism, and the clamping assembly includes a support plate 3, and the support plate 3 is slidably connected through a slider On the slide rail three, a cylinder seven is also installed on the slide rail three, and the piston rod end of the cylinder seven is fixedly connected to the side wall of the support plate three, and the cylinder eight is installed on the end of the support plate three close to the cylinder six, and the piston rod end of the cylinder eight is installed with a U-shaped seat, and a clamping plate one is hinged in the U-shaped seat, and a support plate four is vertically fixedly installed on the support plate three, and the clamping plate one is rotatably connected to the support plate four through a rotating shaft, and a clamping plate two that cooperates with the clamping plate one is also installed on the support plate three, and a U-shaped block is installed on the end of the clamping plate one and the clamping plate two away from the cylinder eight, and a proximity switch is installed on the U-shaped block.

[0018] It also includes a temperature regulating box, which is located between the spot welding mechanism and the traction mechanism. After the transverse strip is spot-welded and fixedly connected with the longitudinal strip as a whole, it is pulled from the spot welding assembly to the temperature regulating box by the traction assembly 1. The temperature regulating box includes a plurality of independent heating boxes, and the plurality of heating boxes are divided into an upper and lower layer. There is a space between the upper and lower layers of the heating boxes for the longitudinal strip and the transverse strip to pass through. An electric heating wire is provided in each of the heating boxes. The temperature regulating box is used to preheat the welding point and then cool it. A support frame 4 is installed at the bottom of the temperature regulating box.

[0019] The traction mechanism includes: a support seat 1; a traction component 3, which has the same structure as the traction component 1; a tensioning roller 2, and support frames 5 are installed on both sides of the support seat 1. The tensioning roller 2 is rotatably installed between the two support frames 5 to perform gravity tension on the rolling of the high-strength geogrid finished product.

[0020] The winding mechanism includes: a support seat 2; a support frame 3, the support frame 4 is installed on the support seat 2; a guide roller 2, the guide roller 2 is installed on the top of the support frame 3; a finished product winding machine, the finished product winding machine is installed on the support seat 2, and the finished product winding machine is used to wind up the high-strength geogrid.

[0021] Beneficial effects of the present invention:

[0022] The high-strength geogrid of the present invention has longitudinal strips and transverse strips connected by welding, and the welding points have high strength. The geogrid is not easy to break or damage during use and has good durability. Its manufacturing device produces it with short welding time, little welding damage to the longitudinal strips and transverse strips, and high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a high-strength geogrid according to an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the distribution of welding points of a bidirectional geogrid according to an embodiment of the present invention;

[0025] Figure 3 A schematic plan view of a unidirectional geogrid according to an embodiment of the present invention;

[0026] Figure 4 It is a schematic plan view of a manufacturing device for a high-strength geogrid according to an embodiment of the present invention;

[0027] Figure 5 A schematic plan view of a manufacturing device for a high-strength geogrid according to an embodiment of the present invention;

[0028] Figure 6 It is a structural schematic diagram of a longitudinal tape unwinding reel and a guide mechanism according to an embodiment of the present invention;

[0029] Figure 7 It is a structural schematic diagram of a longitudinal belt splicing machine according to an embodiment of the present invention;

[0030] Figure 8 A schematic structural diagram of a spot welding mechanism according to an embodiment of the present invention;

[0031] Fig. 9 A schematic diagram of the structure of a temperature regulating box according to an embodiment of the present invention;

[0032] Fig.10 A schematic structural diagram of a traction mechanism according to an embodiment of the present invention;

[0033] Fig.11 It is a structural schematic diagram of a winding mechanism according to an embodiment of the present invention;

[0034] Fig.12 A schematic diagram of the structure of a heating box according to an embodiment of the present invention;

[0035] Fig.13 It is a structural schematic diagram of a traction assembly 1 according to an embodiment of the present invention;

[0036] Fig.14 It is a structural schematic diagram of a transverse belt feeding mechanism according to an embodiment of the present invention;

[0037] Fig.15 A schematic plan view of a transverse belt feeding mechanism according to an embodiment of the present invention;

[0038] Fig.16 for Fig.14 The enlarged structural diagram at A in the middle;

[0039] Fig.17 This is a schematic diagram of a spot welding bottom mold according to an embodiment of the present invention, in which the top is a plane;

[0040] Fig.18 A schematic diagram of a spot welding bottom mold with a concave point on the top according to an embodiment of the present invention;

[0041] Fig.19 A schematic diagram of a spot welding bottom mold with a convex point on the top according to an embodiment of the present invention;

[0042] Fig. 20 It is a schematic diagram of a single-side spot welding point with one side being concave and the other side being convex;

[0043] Fig.21 It is a schematic diagram of a single-sided spot welding point with one side being concave and the other side being flat;

[0044] Fig. 22It is a schematic diagram of a double-sided spot welding point in which both sides are flat;

[0045] Fig.23 It is a schematic diagram of a double-sided spot welding point that is concave on both sides.

[0046] Description of reference numerals:

[0047] 1- transverse strip, 11- longitudinal strip, 111- welding point;

[0048] 2-Longitudinal belt release reel;

[0049] 3-guide mechanism, 21-support frame 2, 22-guide roller 1, 23-tensioning roller 1;

[0050] 4- horizontal belt release reel;

[0051] 5- horizontal belt feeding mechanism, 51- traction component 2, 52- belt threading mold, 521- upper mold body, 522- lower mold body, 523- connecting plate, 524- support plate 1, 525- cylinder 4, 53- cutting component, 531- cylinder 5, 532- cutter, 54- pushing component, 541- slide rail 2, 542- slide rail 3, 543- support plate 2, 544- cylinder 6, 55- clamping component, 551- support plate 3, 552- cylinder 7, 553- cylinder 8, 554- clamping plate 1, 555- support plate 4, 556- clamping plate 2, 557- U-shaped block, 558- proximity switch;

[0052] 6-spot welding mechanism, 61-spot welding assembly, 611-spot welding workbench, 612-spot welding work area, 613-four guide rollers, 614-one ultrasonic generator, 615-one cylinder, 616-one transducer, 617-spot welding die head, 618-welding head, 619-spot welding bottom die, 6191-convex point, 6192-concave point, 62-one traction assembly, 621-one support frame, 622-one traction roller, 623-one motor, 624-two cylinders, 625-two traction rollers, 626-one bearing seat;

[0053] 7- traction mechanism, 71- support seat 1, 72- traction assembly 3, 73- tensioning roller 2, 74- support frame 5;

[0054] 8-winding mechanism, 81-support seat 2, 82-support frame 3, 83-guide roller 2, 84-finished product winding machine;

[0055] 9-longitudinal belt splicing machine, 91-bottom plate, 92-slide rail 1, 93-base, 94-ultrasonic generator 2, 95-fusion welding bottom die, 96-cylinder 3, 97-transducer 2, 98-fusion welding die head, 99-bracket;

[0056] 10-temperature regulating box, 101-heating box, 102-support frame four. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] like Figure 1 As shown, a high-strength geogrid according to an embodiment of the present invention may include a transverse strip 1 and a longitudinal strip 11, wherein the longitudinal strip 11 and the transverse strip 1 are spot-welded to each other to form a mesh structure.

[0059] like Figure 1 As shown, the welding points 111 between the transverse strip 1 and the longitudinal strip 11 are symmetrically distributed about the central axis of the transverse strip 1 or the longitudinal strip 11 , or the welding points 111 are obliquely distributed.

[0060] For example, Figure 2 As shown, there are 1 to 6 welding points 111 between the transverse strip 1 and the longitudinal strip 11, wherein when there is one welding point 111, as shown in FIG. Figure 2 As shown in (a), it is located at the center of the connection between the transverse strip 1 and the longitudinal strip 11; when there are two welding points 111, as shown in Figure 2 As shown in (b), they are symmetrically distributed about the central axis of the transverse strip 1 or the longitudinal strip 11, as shown in FIG. Figure 2 As shown in (c) and (d), it is distributed obliquely; when there are three welding points 111, as shown in Figure 2 As shown in (e) and (f), it is distributed obliquely; when there are 4 welding points 111, as shown in Figure 2 As shown in (g) and (h), they are symmetrically distributed about the central axis of the transverse strip 1 or the longitudinal strip 11; when there are 5 welding points 111, as shown in Figure 2 As shown in (i) and (j), they are symmetrically distributed about the central axis of the transverse strip 1 or the longitudinal strip 11; when there are 6 welding points 111, as shown in Figure 2 As shown in (k) and (l), they are symmetrically distributed about the central axis of the transverse strip 1 or the longitudinal strip 11.

[0061] Among them, spot welding is divided into single-sided spot welding or double-sided spot welding. The welding point 111 formed by single-sided spot welding is concave on one side and convex on the other side or concave on one side and flat on the other side. The welding point 111 formed by double-sided spot welding is concave on both sides or flat on both sides.

[0062] For example, take four welding points 11 as an example. Fig. 20 As shown, the welding point 111 is concave on one side and convex on the other side; Fig.21 As shown, the welding point 111 is concave on one side and flat on the other side; Fig. 22 As shown, the welding point 111 is planar on both sides; Fig.23 As shown, the welding point 111 is concave on both sides.

[0063] The geogrid formed by spot welding the longitudinal strips 11 and the transverse strips 1 is a unidirectional geogrid or a bidirectional geogrid. Figure 2 As shown, the geogrid is a bidirectional geogrid. Figure 3 As shown, the geogrid is a unidirectional geogrid.

[0064] The transverse strip 1 and the longitudinal strip 11 are made of polyester sheets, which have high tensile strength and impact strength.

[0065] The thickness of the transverse strip 1 and the longitudinal strip 11 is 0.3-3.0 mm, and the width of the transverse strip 1 and the longitudinal strip 11 is 50-300 mm.

[0066] Corresponding to the high-strength geogrid of the above-mentioned embodiment, the present invention further provides a manufacturing device of the high-strength geogrid.

[0067] like Figure 4-19 As shown, the manufacturing device of the high-strength geogrid of the embodiment of the present invention is used to manufacture the high-strength geogrid. Specifically, the manufacturing device of the high-strength geogrid includes a plurality of longitudinal belt unwinding disks 2, a guide mechanism 3, a transverse belt unwinding disk 4, a transverse belt feeding mechanism 5, a spot welding mechanism 6, a traction mechanism 7 and a winding mechanism 8.

[0068] A plurality of longitudinal unwinding reels are arranged in a single row at equal intervals, and a longitudinal strip 11 is wound on the longitudinal unwinding reel 2; the longitudinal strip 11 is movably connected to the guide mechanism 3; a transverse strip 1 is wound on the transverse unwinding reel 4; the transverse belt feeding mechanism 5 is used to convey the transverse strip 1 on the transverse belt unwinding reel 4; the spot welding mechanism 6 includes a spot welding assembly 61 and a traction assembly 62, wherein the traction assembly 62 is installed on the side of the spot welding assembly 61 away from the guide mechanism 3, the longitudinal strip 11 passes through the spot welding assembly 61 and is movably connected to the traction assembly 62, the transverse belt conveying mechanism 5 is installed on the spot welding assembly 61, and is used to convey the transverse strip 1 to the longitudinal strip, and is vertically distributed with the longitudinal strip 11 in an upper and lower direction, the spot welding assembly 61 spot welds the longitudinal strip 11 and the transverse strip 1 to form a high-strength geogrid; the high-strength geogrid formed by the spot welding and fixed connection of the longitudinal strip 11 and the transverse strip 1 is movably connected to the traction mechanism 7; the winding mechanism 8 is used to wind up the high-strength geogrid.

[0069] In one embodiment of the present invention, Figure 4 , Figure 8 as well as Figure 17-Figure 19 As shown, the spot welding assembly 61 may include a spot welding workbench 611, an ultrasonic generator 614, a plurality of cylinders 615, a transducer 616 and a plurality of spot welding bottom molds 619.

[0070] Among them, Figure 8 As shown, a spot welding work area 612 is provided in the spot welding workbench 611, and the spot welding workbench 611 has an entrance and an exit, and a guide roller 613 is installed at the entrance of the spot welding workbench 611; an ultrasonic generator 614 is installed on the top of the spot welding workbench 611; a plurality of cylinders 615 are installed at equal intervals at the top inside the spot welding work area 612, corresponding to the longitudinal strips 11 one by one; a transducer 616 is electrically connected to the ultrasonic generator 614, and the transducer 616 is fixedly installed at the piston rod end of the cylinder 615, and a spot welding die head 617 is installed at the bottom of the transducer 616, and a welding head 618 is installed at the bottom of the spot welding die head 617, and the welding head 618 is axially symmetrically distributed or obliquely distributed at the bottom of the spot welding die head 617; a plurality of spot welding bottom molds 619 are installed at equal intervals at the bottom inside the spot welding work area 612, corresponding to the cylinder 615, as shown in FIG. Figure 17-Figure 19 As shown, the top of the spot welding bottom mold 619 is a plane or is provided with a convex point 6191 corresponding to the welding head 618 or is provided with a concave point 6192 corresponding to the welding head 618, so that the welding point 111 forms a plane, a concave shape or an upward convex shape; the welding head 618 cooperates with the spot welding bottom mold 619 to spot weld and fix the longitudinal strip 11 and the transverse strip 1 into one.

[0071] Exemplarily, when the top of the spot welding bottom mold 619 is a concave point 6192, the welding point 111 formed by single-sided spot welding is concave on one side and convex on the other side. Specifically, the side close to the concave point 6192 is convex and the other side is concave.

[0072] In the embodiment of the present invention, the ultrasonic generator is one of the core components of the ultrasonic welding equipment. Its main function is to convert the 50Hz or 60Hz current into high-frequency electrical energy, which is usually in the range of 15kHz, 20kHz, 30kHz or 40kHz. This high-frequency electrical energy is the basis for driving the subsequent welding process. The transducer is responsible for converting the high-frequency electrical energy generated by the ultrasonic generator into mechanical vibration energy. This conversion process is achieved through the piezoelectric effect or the magnetostrictive effect. In the piezoelectric transducer, the piezoelectric ceramic material will deform under the action of the electric field, thereby driving the metal block to generate high-frequency vibrations. These vibrations are transmitted to the welding head through the amplitude rod device, and the welding head then transmits the vibration energy to the joint of the workpiece to be welded. The welding head transmits the received vibration energy to the joint of the workpiece to be welded, and the vibration energy is converted into heat energy in this area by friction. Because the friction force generated by the high-frequency vibration is very large, the temperature of the contact surface rises rapidly, even reaching the melting point of the material. When the temperature reaches the melting point, the material on the contact surface begins to melt and form a molten pool. When the ultrasonic vibration stops, the molten material will solidify quickly under pressure. Ultrasonic welding can effectively reduce the smoke and harmful gases generated during the welding process.

[0073] In one embodiment of the present invention, Figure 8 and Fig.13 As shown, the traction assembly 62 is installed at the exit of the spot welding workbench 611, and the traction assembly 62 may include a support frame 621, a traction roller 622, a motor 623, a cylinder 624 and a traction roller 625.

[0074] Among them, Figure 8 and Fig.13 As shown, a support frame 621 is fixedly mounted on the side of the spot welding workbench 611; a traction roller 622 is rotatably mounted on the support frame 621; a motor 623 is fixedly mounted on one side of the support frame 621, and an output end of the motor 623 is fixedly connected to a rotating shaft of the traction roller 622; a cylinder 624 is mounted on the top of the support frame 621; bearing seats 626 are mounted at both ends of the traction roller 625, the bearing seats 626 are fixedly connected to a piston rod end of the cylinder 624, and the bearing seats 626 are slidably connected in the support frame 621, and the gap between the traction roller 625 and the traction roller 622 is adjusted by the cylinder 624.

[0075] The traction component 1 pulls the transverse strips and the longitudinal strips welded together out of the spot welding workbench 611 to the next processing step.

[0076] In one embodiment of the present invention, Figure 6As shown, the guide mechanism 3 may include a support frame 2 31, a guide roller 1 32 and a tension roller 1 33, wherein the guide roller 1 32 is fixedly mounted on both sides of the top of the support frame 2 31; a tension frame is mounted on the support frame 2 31, and the tension roller 1 33 is mounted on the tension frame and is located below the guide roller 1 32, and the tension roller 1 33 and the guide roller 1 32 are distributed in a triangle. The guide mechanism is used to guide the longitudinal strip 11 and transport the longitudinal strip 11 to the spot welding assembly 61.

[0077] In one embodiment of the present invention, Figure 4 and Figure 7 As shown, it also includes a longitudinal belt splicing machine 9, which is distributed between the guide mechanism 3 and the spot welding mechanism 6. Specifically, the longitudinal belt splicing machine 9 may include a bottom plate 91, a base 93, an ultrasonic generator 2 94, a cylinder 3 96 and a transducer 2 97, wherein a slide rail 1 92 is installed on the bottom plate 91; the base 93 is installed on the slider of the slide rail 1 92, and a bracket 99 is installed on one side of the top of the base 93; the ultrasonic generator 2 94 is installed on the base 93, and a fusion welding bottom mold 95 is installed on the ultrasonic generator 2 94; the cylinder 3 96 is installed on the bracket 99; the transducer 2 97 is installed at the piston rod end of the cylinder 3 96, and a fusion welding die head 98 is installed at the bottom of the transducer 2 97.

[0078] In the embodiment of the present invention, after the longitudinal strip 11 on the longitudinal unwinding reel 2 has been used up, the longitudinal strip roll on the longitudinal unwinding reel 2 is replaced, and then the ends of the two longitudinal strips 11 are welded and connected.

[0079] In one embodiment of the present invention, Figure 5 , Fig.14 , Fig.15 and Fig.16 As shown, the transverse belt feeding mechanism 5 may include a traction component 51, a belt threading mold 52, a cutting component 53, a pushing component 54 and a clamping component 55.

[0080] Among them, the traction component 2 51 is installed on the side adjacent to the spot welding workbench 611 and the traction component 1 62, the transverse strip 1 on the transverse belt reel 4 is movably connected to the traction component 2 51, and the traction component 2 51 has the same structure as the traction component 1 62; the transverse strip 1 passes through the traction component 2 51 to the threading mold 52, and the threading mold 52 includes an upper mold body 521 and a lower mold body 522, wherein the upper mold body 521 and the lower mold body 522 are provided with insertion openings, the upper mold body 521 is fixedly connected to the connecting plate 523 through a connecting block, a support plate 1 524 is installed on the spot welding workbench 611, and a cylinder 4 525 is installed on the support plate 1 524, and the piston rod end of the cylinder 4 525 passes through the support Plate 1 524 is fixedly connected to the connecting plate 523; the cutting assembly 53 is used to cut and shear the transverse strip 1 that passes through the tape threading mold 52. The cutting assembly 53 may include a cylinder 531, which is installed at both ends of the connecting plate 523. The piston rod end of the cylinder 531 passes through the connecting plate 523 and is installed with a cutter 532. The cutter 532 is located at both ends of the tape threading mold 52; the pushing assembly 54 is symmetrically installed on the spot welding workbench 611. The pushing assembly 54 may include a slide rail 2 541 and a slide rail 3 542, wherein one end of the slide rail 2 541 is fixedly connected to the spot welding workbench 611, and the slide rail 3 542 is slidably installed on the slide rail 2 541 through a slider. The slide rail 2 54 A support plate 2 543 is installed at one end away from the spot welding workbench 611, and a cylinder 6 544 is installed on the support plate 2 543. The piston rod end of the cylinder 6 544 passes through the support plate 2 543 and is fixedly connected to the side wall of the slide rail 3 542; the clamping assembly 55 clamps and straightens the transverse strip 1 located in the strip threading mold 52 after cutting, and after clamping and straightening, the transverse strip 1 is moved out of the strip threading mold 52 to the bottom of the welding head 618, and the transverse strip 1 and the longitudinal strip 11 are spot-welded and fixedly connected as a whole by the spot welding mechanism 6. Specifically, the clamping assembly 55 includes a support plate 3 551, and the support plate 3 551 is slidably connected to the slide rail 3 542 through a slider, and the slide rail 3 542 is also installed Cylinder seven 552 is installed, the piston rod end of cylinder seven 552 is fixedly connected to the side wall of support plate three 551, cylinder eight 553 is installed at the end of support plate three 551 close to cylinder six 544, and a U-shaped seat is installed at the piston rod end of cylinder eight 553, in which a splint one 554 is hinged, and a support plate four 555 is vertically fixedly installed on support plate three 551, and splint one 554 is rotatably connected to support plate four 555 through a rotating shaft, and a splint two 556 cooperating with splint one 554 is also installed on support plate three 551, and a U-shaped block 557 is installed at the end of splint one 554 and splint two 556 away from cylinder eight 553, and a proximity switch 558 is installed on the U-shaped block 557.

[0081] In one embodiment of the present invention, Figure 4 , Fig. 9 and Fig.12As shown, the present invention also includes a temperature regulating box 10, which is located between the spot welding mechanism 6 and the traction mechanism 7. After the transverse strip is fixedly connected to the longitudinal strip by spot welding, it is pulled from the spot welding assembly 61 to the temperature regulating box 10 by the traction assembly 1 62. Specifically, the temperature regulating box 10 includes a plurality of mutually independent heating boxes 101, and the plurality of heating boxes 101 are divided into two layers, and there is a space between the upper and lower layers of heating boxes 101 for the longitudinal strip 11 and the transverse strip 1 to pass through. Each heating box 101 is provided with an electric heating wire. The temperature regulating box 10 is used to preheat the welding point 111 and then cool it. A support frame 102 is installed at the bottom of the temperature regulating box 10.

[0082] In the embodiment of the present invention, the temperature regulating box is divided into eight temperature zones 1-8 from left to right, and the temperature of each temperature zone is adjustable; the temperatures of the three temperature zones No. 1, No. 2, and No. 3 are increased in steps from left to right to achieve gradual preheating, and the temperature zones No. 4 and No. 5 are constant temperature zones to remove the welding residual stress of the finished product after welding and reduce welding deformation; the temperatures of the three temperature zones No. 6, No. 7, and No. 8 are decreased in steps from left to right to achieve gradual cooling, reduce cooling deformation, and improve the flatness of the finished product.

[0083] In one embodiment of the present invention, Figure 4 and Fig.10 As shown, the traction mechanism 7 may include a support seat 71, a traction component 72 and a tensioning roller 73, wherein the traction component 72 has the same structure as the traction component 62; support frames 74 are installed on both sides of the support seat 71, and the tensioning roller 73 is rotatably installed between the two support frames 74 to perform gravity tension on the winding of the high-strength geogrid product.

[0084] In one embodiment of the present invention, Figure 4 and Fig.11 As shown, the winding mechanism 8 may include a support seat 2 81, a support frame 3 82, a guide roller 2 83 and a finished product winding machine 84, wherein the support frame 4 102 is installed on the support seat 2 81; the guide roller 2 83 is installed on the top of the support frame 3 82; the finished product winding machine 84 is installed on the support seat 2 81, and the finished product winding machine 84 is used to wind up the high-strength geogrid.

[0085] According to the manufacturing device of the high-strength geogrid of the present invention, the transverse strips are pulled by the transverse belt feeding mechanism and arranged into a mesh at a right angle of 90° to the longitudinal and longitudinal strips. After the arrangement is completed, the spot welding mechanism automatically starts and welds. After the welding is completed, the finished high-strength geogrid is pulled forward. In the present invention, the transverse strips and the longitudinal strips are connected by welding. The welding time of each group of nodes is short, the welding damage to the longitudinal strips and the transverse strips is small, the number of strips per linear meter is greatly reduced, and the production efficiency is high. Specifically, the welding time of each group of nodes is short, which is 1 / 7-1 / 5 of the injection molding time. The production efficiency is many times higher than that of injection molding. The entire welding and cooling time is about 1.2s.

[0086] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0087] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, various modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A high-strength geogrid, characterized in that: include: Transverse strip (1); A longitudinal strip (11), wherein the longitudinal strip (11) and the transverse strip (1) are spot-welded to form a mesh structure; The welding points (111) between the transverse strip (1) and the longitudinal strip (11) are symmetrically distributed about the central axis of the transverse strip (1) or the longitudinal strip (11), or the welding points (111) are obliquely distributed, and the spot welding is divided into single-sided spot welding or double-sided spot welding. The welding points (111) formed by single-sided spot welding are concave on one side and convex on the other side or concave on one side and flat on the other side, and the welding points (111) formed by double-sided spot welding are concave on both sides or flat on both sides; The geogrid formed by spot welding the longitudinal strips (11) and the transverse strips (1) to each other is divided into a unidirectional geogrid or a bidirectional geogrid; The transverse strip (1) and the longitudinal strip (11) are made of polyester sheets; The thickness of the transverse strip (1) and the longitudinal strip (11) is 0.3-3.0 mm, and the width of the transverse strip (1) and the longitudinal strip (11) is 50-300 mm.

2. A high-strength geogrid manufacturing device, used to manufacture the high-strength geogrid according to claim 1, characterized in that: include: A plurality of longitudinal tape unwinding reels (2), wherein the plurality of longitudinal tape unwinding reels are arranged in a single row at equal intervals, and the longitudinal tape strips (11) are wound on the longitudinal tape unwinding reels; A guide mechanism (3), wherein the longitudinal strip (11) is movably connected to the guide mechanism (3); a transverse tape unwinding reel (4), on which the transverse tape unwinding reel (4) is wound the transverse tape (1); A transverse belt feeding mechanism (5), the transverse belt feeding mechanism (5) being used for feeding the transverse belt (1) on the transverse belt unwinding reel (4); A spot welding mechanism (6), wherein the spot welding mechanism (6) comprises a spot welding assembly (61) and a traction assembly (62), wherein the traction assembly (62) is mounted on a side of the spot welding assembly (61) away from the guide mechanism (3), wherein the longitudinal strip (11) passes through the spot welding assembly (61) and is movably connected to the traction assembly (62), wherein the transverse strip conveying mechanism (5) is mounted on the spot welding assembly (61) and is used to convey the transverse strip (1) to the longitudinal strip (11) and is vertically distributed with the longitudinal strip (11) in an upper and lower direction, wherein the spot welding assembly (61) spot-welds the longitudinal strip (11) and the transverse strip (1) to form a high-strength geogrid; A traction mechanism (7), wherein the longitudinal strip (11) and the transverse strip (1) are spot-welded and fixedly connected to form a high-strength geogrid integrally formed and movably connected to the traction mechanism (7); A winding mechanism (8), wherein the winding mechanism (8) is used for winding the high-strength geogrid.

3. The manufacturing device of high-strength geogrid according to claim 2, characterized in that: The spot welding assembly (61) comprises: A spot welding workbench (611), wherein a spot welding work area (612) is provided in the spot welding workbench (611), the spot welding workbench (611) has an entrance and an exit, and a guide roller 4 (613) is installed at the entrance of the spot welding workbench (611); An ultrasonic generator (614), wherein the ultrasonic generator (614) is installed on the top of the spot welding workbench (611); A plurality of cylinders (615), wherein the plurality of cylinders (615) are installed at equal intervals at the top of the interior of the spot welding work area (612), corresponding one to one with the longitudinal strips (11); A transducer (616), wherein the transducer (616) is electrically connected to the ultrasonic generator (614), and the transducer (616) is fixedly mounted on the piston rod end of the cylinder (615). A spot welding die head (617) is mounted on the bottom of the transducer (616), and a welding head (618) is mounted on the bottom of the spot welding die head (617). The welding head (618) is axially symmetrically distributed or obliquely distributed on the bottom of the spot welding die head (617); A plurality of spot welding bottom molds (619), wherein the plurality of spot welding bottom molds (619) are installed at equal intervals at the bottom of the spot welding work area (612) and correspond to the cylinder one (615); the top of the spot welding bottom mold (619) is a plane or is provided with a convex point (6191) corresponding to the welding head (618) or a concave point (6192) corresponding to the welding head (618); The welding head (618) cooperates with the spot welding bottom mold (619) to spot weld and fix the longitudinal strip (11) and the transverse strip (1) into one body.

4. The manufacturing device of high-strength geogrid according to claim 3, characterized in that: The traction assembly (62) is installed at the exit of the spot welding workbench (611), and the traction assembly (62) includes: Support frame 1 (621), the support frame 1 (621) is fixedly mounted on the side of the spot welding workbench (611); A traction roller (622), wherein the traction roller (622) is rotatably mounted on the support frame (621); Motor 1 (623), wherein the motor 1 (623) is fixedly mounted on one side of the support frame 1 (621), and the output end of the motor 1 (623) is fixedly connected to the rotating shaft of the traction roller 1 (622); Cylinder 2 (624), the cylinder 2 (624) is installed on the top of the support frame 1 (621); A traction roller 2 (625), wherein bearing seats 1 (626) are installed at both ends of the traction roller 2 (625), wherein the bearing seats 1 (626) are fixedly connected to the piston rod end of the cylinder 2 (624), and the bearing seats 1 (626) are slidably connected in the support frame 1 (621), and the gap between the traction roller 2 (625) and the traction roller 1 (622) is adjusted by the cylinder 2 (624).

5. The manufacturing device of high-strength geogrid according to claim 4, characterized in that: The guiding mechanism (3) comprises: Support frame two (31); A guide roller (32), wherein the guide roller (32) is fixedly mounted on both sides of the top of the support frame (31); A tensioning roller (33) is installed on the support frame (31), and the tensioning roller (33) is installed on the tensioning frame and is located below the guide roller (32). The tensioning roller (33) and the guide roller (32) are distributed in a triangular shape.

6. The manufacturing device of high-strength geogrid according to claim 5, characterized in that: It also includes a longitudinal belt splicing machine (9), which is distributed between the guide mechanism (3) and the spot welding mechanism (6), and includes: A bottom plate (91), wherein a slide rail 1 (92) is installed on the bottom plate (91); A base (93), the base (93) being mounted on a slider of the first slide rail (92), and a bracket (99) being mounted on one side of the top of the base (93); A second ultrasonic generator (94), the second ultrasonic generator (94) being mounted on the base (93), and a fusion welding bottom mold (95) being mounted on the second ultrasonic generator (94); Cylinder three (96), the cylinder three (96) is installed on the bracket (99); Transducer 2 (97), the transducer 2 (97) is installed at the piston rod end of the cylinder 3 (96), and a welding die head (98) is installed at the bottom of the transducer 2 (97).

7. The manufacturing device of high-strength geogrid according to claim 6, characterized in that: The transverse belt feeding mechanism (5) comprises: A traction component 2 (51), the traction component 2 (51) being installed on a side of the spot welding workbench (611) adjacent to the traction component 1 (62), the transverse strip (1) on the transverse strip unwinding reel (4) being movably connected to the traction component 2 (51), and the traction component 2 (51) and the traction component 1 (62) having the same structure; A belt threading mold (52), wherein the transverse strip (1) is passed through the traction component 2 (51) into the belt threading mold (52), the belt threading mold (52) comprises an upper mold body (521) and a lower mold body (522), the upper mold body (521) and the lower mold body (522) are provided with insertion openings, the upper mold body (521) is fixedly connected to a connecting plate (523) via a connecting block, a support plate 1 (524) is installed on the spot welding workbench (611), a cylinder 4 (525) is installed on the support plate 1 (524), and the piston rod end of the cylinder 4 (525) passes through the support plate 1 (524) and is fixedly connected to the connecting plate (523); A cutting assembly (53), the cutting assembly (53) is used to cut the transverse strip (1) passed through the tape threading die (52), the cutting assembly (53) comprises a cylinder (531), the cylinder (531) is installed at both ends of the connecting plate (523), a piston rod end of the cylinder (531) passes through the connecting plate (523) and is installed with a cutter (532), the cutter (532) is located at both ends of the tape threading die (52); A pushing assembly (54), the pushing assembly (54) is symmetrically mounted on the spot welding workbench (611), the pushing assembly (54) comprises a second slide rail (541) and a third slide rail (542), one end of the second slide rail (541) is fixedly connected to the spot welding workbench (611), the third slide rail (542) is slidably mounted on the second slide rail (541) via a slider, a second support plate (543) is mounted on the end of the second slide rail (541) away from the spot welding workbench (611), a sixth cylinder (544) is mounted on the second support plate (543), and a piston rod end of the sixth cylinder (544) passes through the second support plate (543) and is fixedly connected to the side wall of the third slide rail (542); A clamping assembly (55), wherein the clamping assembly (55) clamps and straightens the transverse strip (1) located in the threading mold (52) after cutting. After clamping and straightening, the transverse strip (1) is moved out of the threading mold (52) to the bottom of the welding head (618), and the transverse strip (1) and the longitudinal strip (11) are spot-welded and fixedly connected as a whole by the spot welding mechanism (6). The clamping assembly (55) includes a support plate three (551), and the support plate three (551) is slidably connected to the slide rail three (542) through a slider. The slide rail three (542) is also equipped with a cylinder seven (552), and the piston rod end of the cylinder seven (552) is fixedly connected to the side wall of the support plate three (551). The support plate three (551) is provided with a cylinder eight (553) at one end close to the cylinder six (544), a U-shaped seat is provided at the piston rod end of the cylinder eight (553), a clamping plate one (554) is hinged in the U-shaped seat, a support plate four (555) is vertically fixedly provided on the support plate three (551), the clamping plate one (554) is rotatably connected to the support plate four (555) via a rotating shaft, a clamping plate two (556) which cooperates with the clamping plate one (554) is also provided on the support plate three (551), a U-shaped block (557) is provided at one end of the clamping plate one (554) and the clamping plate two (556) which is away from the cylinder eight (553), and a proximity switch (558) is provided on the U-shaped block (557).

8. The manufacturing device of high-strength geogrid according to claim 7, characterized in that: It also comprises a temperature regulating box (10), wherein the temperature regulating box (10) is located between the spot welding mechanism (6) and the traction mechanism (7), and after the transverse strip is fixedly connected to the longitudinal strip by spot welding, it is pulled from the spot welding assembly (61) to the temperature regulating box (10) by the traction assembly (62), and the temperature regulating box (10) comprises a plurality of mutually independent heating boxes (101), and the plurality of heating boxes (101) are divided into an upper and lower layer, and there is a space between the upper and lower layers of the heating boxes (101) for the longitudinal strip (11) and the transverse strip (1) to pass through, and each of the heating boxes (101) is provided with an electric heating wire, and the temperature regulating box (10) is used to preheat the welding point (111) and then cool it, and a support frame (102) is installed at the bottom of the temperature regulating box (10).

9. The manufacturing device of high-strength geogrid according to claim 8, characterized in that: The traction mechanism (7) comprises: Support seat 1 (71); A traction assembly three (72), wherein the traction assembly three (72) has the same structure as the traction assembly one (62); Tensioning roller two (73), support frames five (74) are installed on both sides of the support seat one (71), and the tensioning roller two (73) is rotatably installed between the two support frames five (74) to perform gravity tension on the rolling of the high-strength geogrid finished product.

10. The manufacturing device of high-strength geogrid according to claim 9, characterized in that: The winding mechanism (8) comprises: Support seat 2 (81); Support frame three (82), the support frame four (102) is installed on the support seat two (81); A second guide roller (83), wherein the second guide roller (83) is installed on the top of the third support frame (82); A finished product winding machine (84), the finished product winding machine (84) is installed on the second support seat (81), and the finished product winding machine (84) is used to wind up the high-strength geogrid.

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