A flexible tensile geogrid and preparation method thereof

Abstract

The present invention relates to the field of geogrid technology, specifically to a flexible tensile geogrid and a preparation method thereof, comprising a tensile geogrid body, wherein the tensile geogrid body is composed of a longitudinal grid and a transverse grid. By adding a traction tensioning mechanism on one side of a guide traction roller 1 and a guide traction roller 2, a plurality of linkage actions are used to achieve traction and tensioning of the tensile geogrid body, and in the process of continuous swinging and tensioning of the tensile geogrid body, the stress and unevenness generated by the tensile geogrid body during the stretching process are eliminated, and the linkage tensioning component synchronously drives the roller pressing processing component in the continuous operation state to achieve hot pressing treatment of the side of the tensile geogrid body, avoiding the looseness caused by the warping of the corners, and achieving positioning and deviation correction of the side of the tensile geogrid body, strengthening the effectiveness of the material belt tensioning process, and improving the overall tensile performance of the geogrid.

Description

Technical Field

[0001] The invention relates to the technical field of geogrids, in particular to a flexible tensile geogrid and a preparation method thereof. Background Art

[0002] Flexible tensile geogrid is a geosynthetic material with excellent properties such as high strength, high toughness and corrosion resistance. It is widely used in roads, railways, water conservancy, slope reinforcement and other projects to enhance the overall stability and bearing capacity of soil or soil. During the production and preparation of geogrid, a tensioning machine is used to tension the cut material strip. The main purpose of this step is to eliminate the stress and unevenness generated inside the material strip during the stretching process, so that the molecular chains can be better oriented and arranged along the stretching direction. Through tensioning, the structure of the material strip becomes tighter and more stable, thereby improving its tensile strength.

[0003] In the prior art, there is a traction and tensioning device for geogrid processing with publication number CN217577625U, which includes a frame, a feeding mechanism, a cutting mechanism, a front traction mechanism, and a rear traction mechanism are sequentially installed on the frame from the beginning to the end, the front traction mechanism is connected to the rear traction mechanism through a guide mechanism installed on the frame, the cutting mechanism is slidably installed on the frame and the sliding direction is perpendicular to the feeding direction, and the rear traction mechanism is slidably installed on the frame and the sliding direction is in the same direction as the feeding direction. In the entire feeding process, the degree of automation is high, no manual intervention is required, the grid belt is thermoplastically connected in a straight tensioned state in the mold, avoiding the distortion and deformation of the grid belt caused by different lengths, and the quality and aesthetics of the product are greatly improved.

[0004] However, in actual use, although the problem of the existing grid belt feeding device lacking a traction device, which causes the molded geogrid to be prone to distortion, is solved, the edges and corners of the geogrid after shearing are prone to warping, causing the geogrid to become loose on the sides when tensioned, which still leads to unevenness and warping of the geogrid. Once the geogrid becomes loose, it will greatly affect the tensile properties, thereby affecting the use effect.

[0005] Therefore, the present invention proposes a flexible tensile geogrid and a preparation method to solve the problem that the existing geogrid is easily affected by tensile stress and causes the side to warp or loosen. The tensile effect of the geogrid can be achieved and looseness can be avoided during the tensioning process. Summary of the invention

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide a flexible tensile geogrid and a preparation method thereof, which has the advantages of being able to achieve the tensile effect of a geogrid and avoiding looseness during the tensioning process.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flexible tensile geogrid, comprising a tensile geogrid body, wherein the tensile geogrid body is composed of a longitudinal grid and a transverse grid, wherein the longitudinal grid and the transverse grid are arranged in multiple groups, wherein the multiple groups of the longitudinal grids and the transverse grids are arranged in a cross-overlapping manner, and the sides of the longitudinal grids and the transverse grids are provided with side material strips.

[0008] A method for preparing a flexible tensile geogrid comprises the following steps:

[0009] S1. Raw material preparation: After pre-cleaning the polymer raw materials, send them into the crusher for crushing and mixing;

[0010] S2, extrusion molding: the pretreated raw materials are fed into the extruder for heating and melting;

[0011] S3. Stretching and shaping: For plastic geogrids (such as HDPE, PP), the extruded sheet or strip is stretched longitudinally and / or transversely;

[0012] S4. Cooling and curing: The stretched geogrid is cooled and cured by a cooling device to ensure the strength and stability of the product;

[0013] S5. Shearing: Shear the cooled and solidified geogrid according to engineering requirements to form plates or coils of different sizes and shapes;

[0014] S6, material strip shaping: Use a tensioning machine to tension the material strip to eliminate internal stress and unevenness, and assist in flattening the side of the material strip to improve the appearance quality of the product;

[0015] S7. Inspection and packaging: Conduct quality inspection on the finished geogrids, including appearance inspection, size measurement and performance testing.

[0016] Preferably, the tensioner includes a tensioner body, on the inner side of which a guide traction roller 1 and a guide traction roller 2 are rotatably installed, one side of the guide traction roller 1 and the guide traction roller 2 is provided with a traction and tensioning mechanism, the traction and tensioning mechanism includes a linkage tensioning component, a limit component and a rolling processing component, the rolling processing component includes a mounting angle plate, a buffer groove is provided on the inner wall of the mounting angle plate, a mounting seat is movably installed in the inner cavity of the buffer groove, a hot pressing roller group is rotatably installed at the lower end of the mounting seat, the inner cavity of the buffer groove is provided with a buffer component, and the lower end of the buffer component is fixedly connected to the outer surface of the upper end of the mounting seat.

[0017] Preferably, the linked tensioning assembly includes a forward and reverse motor, which is fixedly mounted on the outer surface of one side of the tensioner body, and an active gear disc 1 is fixedly connected to the output shaft of the forward and reverse motor, and an active gear disc 2 is arranged on the outer side of the active gear disc 1, and the active gear disc 1 and the active gear disc 2 are symmetrically distributed about the longitudinal centerline axis of the tensioner body, and a connecting rod is fixedly connected to the inner surface of the active gear disc 1 and the active gear disc 2, and an auxiliary picking roller is rotatably mounted on the outer surface of the connecting rod.

[0018] Preferably, the outer surfaces of one side of the driving sprocket disc 1 and the driving sprocket disc 2 are meshed and rotatably engaged with a driven sprocket disc, a central shaft rod 1 is fixedly installed on the central inner surface of the driven sprocket disc, the outer surface of the central shaft rod 1 is rotatably connected to the inner wall of the tensioner body, a driving pulley 1 is fixedly installed on the outer surface of the central shaft rod 1, a driven pulley 1 is provided on one side of the driving pulley 1, and the outer surface of the driving pulley 1 is rotatably connected to the outer surface of the driven pulley 1 through a belt.

[0019] Preferably, a central shaft rod 2 is fixedly installed on the central inner surface of the driven pulley 1, and the outer surface of one end of the central shaft rod 2 is rotatably connected to the inner wall of the tensioner body, and a linkage gear plate is fixedly installed on the outer surface of the central shaft rod 2. A driving pulley 2 is provided on the outer side of the linkage gear plate, and the driving pulley 2 is fixedly installed on the outer surface of the central shaft rod 2. A driven pulley 2 is provided on one side of the driving pulley 2, and the outer surface of the driving pulley 2 is rotatably connected to the outer surface of the driven pulley 2 through a belt, and a central shaft rod 3 is fixedly connected to the central inner surface of the driven pulley 2, and a transmission gear 1 is fixedly installed on the outer surface of one end of the central shaft rod 3.

[0020] Preferably, the outer surface of one side of the linkage gear plate is meshed and rotatably engaged with a transmission gear 2, the central inner surface of the transmission gear 2 is fixedly connected to a central shaft rod 3, and the outer surface of the central shaft rod 3 is rotatably connected to the inner wall of the tensioner body.

[0021] Preferably, the outer surfaces of the transmission gear 2 and the transmission gear 1 are respectively meshed and rotated with an upper meshing gear rod and a lower meshing gear rod, the outer surfaces of the upper meshing gear rod and the lower meshing gear rod are evenly mounted on one side of the angle plate and fixedly connected, and a limiting component is arranged on the outer side of the upper meshing gear rod and the lower meshing gear rod.

[0022] Preferably, the limit assembly includes a limit slot plate, the limit slot plate is fixedly mounted on the inner side wall of the tensioner body, a strip limit slot is opened on the inner wall of the limit slot plate, a guide rod is fixedly mounted on the inner surface of the strip limit slot, a movable plate is slidably connected to the outer surface of the guide rod, both ends of the movable plate are respectively fixedly connected with abutment springs, the other end of the abutment spring is fixedly connected to the inner cavity side wall of the strip limit slot, and the abutment spring is slidably sleeved on the outside of the guide rod.

[0023] Preferably, a movable groove is provided on the inner wall of the buffer groove, and a connecting edge block is slidably connected to the inner wall of the movable groove. Two groups of connecting edge blocks are provided, and the two groups of connecting edge blocks are fixedly installed at both ends of the mounting seat. The hot pressing roller group includes end covers and electric heating tubes, and the electric heating tubes are arranged in the center of the hot pressing roller group. The end covers are fixedly installed at both ends of the hot pressing roller group in a detachable manner. A heat conducting wire is arranged on the outside of the electric heating tube. A heat transfer cone block is fixedly installed on the inner ring side wall of the hot pressing roller group, and a heat transfer tooth plate is arranged on the outside of the heat transfer cone block. The heat transfer cone blocks and the heat transfer tooth plates are arranged in multiple groups and arranged in a circular array about the central axis of the hot pressing roller group.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention proposes a flexible tensile geogrid and a preparation method. A traction and tensioning mechanism is added to one side of a guide traction roller one and a guide traction roller two, and multiple groups of linkage actions are used to achieve traction and tensioning of the tensile geogrid body. During the continuous swinging and tensioning of the tensile geogrid body, the stress and unevenness generated by the tensile geogrid body during the stretching process are eliminated. The linkage tensioning component synchronously drives the roller pressing processing component in a continuous operation state to achieve hot pressing treatment of the side of the tensile geogrid body, avoiding the looseness caused by the warping of the corners, and achieving positioning and correction of the side of the tensile geogrid body, thereby enhancing the effectiveness of the material belt tensioning process and improving the overall tensile performance of the geogrid. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the tensile geogrid body of the present invention;

[0027] Figure 2 is a flow chart of the present invention;

[0028] Figure 3 It is a three-dimensional structural schematic diagram of the tensioner body of the present invention;

[0029] Figure 4 It is a partial three-dimensional structural schematic diagram of the tensioner body of the present invention;

[0030] Figure 5It is a schematic diagram of the top view of the tensioner body of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the traction tensioning mechanism of the present invention;

[0032] Figure 7 It is a schematic diagram of the partial connection structure of the linkage tensioning assembly and the rolling processing assembly of the present invention;

[0033] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at point A;

[0034] Fig. 9 It is a schematic diagram of the connection structure between the roller pressing processing component and the limiting component of the present invention;

[0035] Fig.10 For the present invention Fig. 9 A schematic diagram of the enlarged structure at B;

[0036] Fig.11 It is a schematic diagram of the connection structure between the buffer assembly and the hot pressing roller group of the present invention;

[0037] Fig.12 It is a schematic diagram of the disassembled structure of the hot pressing roller group of the present invention;

[0038] Fig.13 For the present invention Fig.12 Enlarged structural diagram at C.

[0039] In the figure: 1. tensile geogrid body; 11. longitudinal grid; 12. transverse grid; 13. side material strip; 2. tensioner body; 21. guide traction roller 1; 22. guide traction roller 2; 3. traction tensioning mechanism; 31. forward and reverse motor; 311. driving gear disc 1; 312. driving gear disc 2; 313. auxiliary pick roller; 32. driven gear disc; 320. central shaft rod 1; 321. driving pulley 1; 322. driven pulley 1; 323. linkage gear disc; 33. central shaft rod 2; 331. driving pulley 2; 332. driven pulley 2; 3321. central shaft rod 3; 333. transmission gear Wheel one; 34, transmission gear two; 341, center shaft three; 35, upper meshing gear rod; 36, lower meshing gear rod; 5, limit slot plate; 51, strip limit slot; 52, guide rod; 53, abutment spring; 54, movable plate; 4, rolling processing assembly; 41, installation angle plate; 40, buffer groove; 411, mounting seat; 412, hot pressing roller group; 4121, end cover; 4122, electric heating pipe; 4123, thermal wire; 4124, heat transfer cone block; 4125, thermal conductive tooth plate; 413, connecting edge block; 414, movable groove; 42, buffer assembly; 421, center U-shaped support plate; 422, curved elastic support plate. DETAILED DESCRIPTION

[0040] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit 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. Embodiment 1

[0041] See also Figure 1-13 The present invention provides a technical solution: a flexible tensile geogrid, including a tensile geogrid body 1, the tensile geogrid body 1 is composed of a longitudinal grid 11 and a transverse grid 12, the longitudinal grid 11 and the transverse grid 12 are arranged in multiple groups, the multiple groups of longitudinal grids 11 and transverse grids 12 are arranged in a cross-overlapping manner, and the sides of the longitudinal grids 11 and the transverse grids 12 are both provided with side material strips 13. Embodiment 2

[0042] See attached Figure 1-13 , a method for preparing a flexible tensile geogrid is proposed, comprising the following steps:

[0043] S1. Raw material preparation: After pre-cleaning the polymer raw materials, send them into the crusher for crushing and mixing;

[0044] S2, extrusion molding: the pretreated raw materials are fed into the extruder for heating and melting;

[0045] S3. Stretching and shaping: For plastic geogrids (such as HDPE, PP), the extruded sheet or strip is stretched longitudinally and / or transversely;

[0046] S4. Cooling and curing: The stretched geogrid is cooled and cured by a cooling device to ensure the strength and stability of the product;

[0047] S5. Shearing: Shear the cooled and solidified geogrid according to engineering requirements to form plates or coils of different sizes and shapes;

[0048] S6, material strip shaping: Use a tensioning machine to tension the material strip to eliminate internal stress and unevenness, and assist in flattening the side of the material strip to improve the appearance quality of the product;

[0049] S7. Inspection and packaging: Conduct quality inspection on the finished geogrids, including appearance inspection, size measurement and performance testing. Embodiment 3

[0050] See attached Figure 1-13 On the basis of the second embodiment, the tensioner includes a tensioner body 2, a guide traction roller 1 21 and a guide traction roller 2 22 are rotatably installed on the inner side of the tensioner body 2, a traction tensioning mechanism 3 is arranged on one side of the guide traction roller 1 21 and the guide traction roller 2 22, the traction tensioning mechanism 3 includes a linkage tensioning component, a limit component and a roller pressing processing component 4, the roller pressing processing component 4 includes a mounting angle plate 41, a buffer groove 40 is provided on the inner wall of the mounting angle plate 41, a mounting seat 411 is movably installed in the inner cavity of the buffer groove 40, a hot pressing roller group 412 is rotatably installed at the lower end of the mounting seat 411, a buffer component 42 is arranged in the inner cavity of the buffer groove 40, and the buffer component 42 is The lower end is fixedly connected to the upper outer surface of the mounting seat 411; the buffer assembly 42 includes a central U-shaped support plate 421 and a curved elastic support piece 422. The central U-shaped support plate 421 is an overall "U"-shaped plate structure. The upper end of the central U-shaped support plate 421 is fixedly connected to the inner cavity top surface of the buffer groove 40, and the lower end outer surface of the central U-shaped support plate 421 is fixedly connected to the upper end of the mounting seat 411. The curved elastic support piece 422 is provided with two groups and is symmetrically distributed about the longitudinal axis of the central U-shaped support plate 421. The upper end of the curved elastic support piece 422 is fixedly connected to the inner cavity top surface of the buffer groove 40, and the lower end of the curved elastic support piece 422 is fixedly connected to the upper end of the mounting seat 411.

[0051] By adding a traction tensioning mechanism 3 on one side of the guide traction roller 1 21 and the guide traction roller 2 22, a plurality of linkages are used to achieve traction tensioning of the anti-tension geogrid body 1. In the process of continuous swinging and tensioning of the anti-tension geogrid body 1, the stress and unevenness generated by the anti-tension geogrid body 1 during the stretching process are eliminated. In addition, the linkage tensioning component synchronously drives the roller pressing processing component 4 in the continuous operation state to achieve hot pressing treatment on the side of the anti-tension geogrid body 1, avoiding the looseness caused by the warping of the corners, and achieving positioning and deviation correction on the side of the anti-tension geogrid body 1, thereby enhancing the effectiveness of the material belt tensioning process and improving the overall geogrid. Tensile performance: A buffer component 42 is added to the upper part of the hot pressing roller group 412 to ensure that when the hot pressing roller group 412 performs hot pressing operation on the side of the tensile geogrid body 1, the hot pressing roller group 412 reciprocates in contact with the surface of the material belt, so that the buffer component 42 can achieve buffering protection for the hot pressing roller group 412. Specifically, when the hot pressing roller group 412 is moved by the side of the material belt, the center U-shaped support plate 421 and the curved elastic support piece 422 are elastically deformed by external pressure, thereby weakening the vibration of the hot pressing roller group 412, ensuring that the hot pressing roller group 412 can achieve hot pressing and shaping of the side of the material belt while assisting in positioning the material belt to prevent deviation during the tensioning process. Embodiment 4

[0052] See attached Figure 1-13On the basis of the third embodiment, in order to realize the traction tensioning adjustment of the tensile geogrid body 1: the linkage tensioning assembly includes a forward and reverse motor 31, the forward and reverse motor 31 is fixedly installed on the outer surface of one side of the tensioning machine body 2, and the output shaft of the forward and reverse motor 31 is fixedly connected with an active gear disc 1 311, and an active gear disc 2 312 is arranged on the outer side of the active gear disc 1 311. The active gear disc 1 311 and the active gear disc 2 312 are symmetrically distributed about the longitudinal centerline axis of the tensioning machine body 2, and the active gear disc 1 311 and the active gear disc 2 312 are symmetrically distributed about the longitudinal centerline axis of the tensioning machine body 2. The inner surface is fixedly connected with a connecting rod, and the outer surface of the connecting rod is rotatably installed with an auxiliary picking roller 313; the outer surface of one side of the driving gear plate 311 and the driving gear plate 2 312 is meshed and rotatably engaged with a driven gear plate 32, and the central inner surface of the driven gear plate 32 is fixedly installed with a central shaft rod 320, and the outer surface of the central shaft rod 320 is rotatably connected to the inner wall of the tensioner body 2, and the outer surface of the central shaft rod 320 is fixedly installed with a driving pulley 321, and a driven pulley 322 is arranged on one side of the driving pulley 321, and the driving pulley 32 The outer surface of 1 is rotatably connected with the outer surface of the driven pulley 1 322 through a belt; the central inner surface of the driven pulley 1 322 is fixedly installed with a central shaft rod 2 33, and the outer surface of one end of the central shaft rod 2 33 is rotatably connected with the inner wall of the tensioner body 2, and the outer surface of the central shaft rod 2 33 is fixedly installed with a linkage toothed disc 323, and the outer side of the linkage toothed disc 323 is provided with a driving pulley 2 331, and the driving pulley 2 331 is fixedly installed on the outer surface of the central shaft rod 2 33, and a driven pulley 2 331 is provided on one side of the driving pulley 2 331. 332, the outer surface of the driving pulley 2 331 is rotatably connected to the outer surface of the driven pulley 2 332 through a belt, the central inner surface of the driven pulley 2 332 is fixedly connected to the central shaft rod 3321, and the outer surface of one end of the central shaft rod 3321 is fixedly installed with a transmission gear 1 333; the outer surface of one side of the linkage gear plate 323 is meshed and rotatably engaged with the transmission gear 2 34, the central inner surface of the transmission gear 2 34 is fixedly connected to the central shaft rod 341, and the outer surface of the central shaft rod 341 is rotatably connected to the inner wall of the tensioner body 2.

[0053] After the forward and reverse motor 31 is driven to work, its output shaft rotates to drive the active gear plate 1 311 to rotate, thereby causing the auxiliary picking roller 313 to rotate, and the other end of the auxiliary picking roller 313 is connected to the active gear plate 2 312, and drives the active gear plate 1 311 and the active gear plate 2 312 to rotate synchronously. Under the action of the meshing tooth adaptation, the two sets of driven gear plates 32 rotate, and then the driven gear plate 32 rotates to drive the central shaft rod 1 320 to rotate. At this time, the active pulley 1 321 and the driven pulley 1 322 are driven by a belt transmission, so that the rotation of the central shaft rod 1 320 is realized, and the driven gear plate 32 connected to one end of the central shaft rod 1 320 rotates. Under the linkage transmission action of the belt, the active pulley 2 331 and the driven pulley 2 332 realize rotation in the same direction. The specific rotation direction is realized according to the rotation direction of the active gear disc 1 311; when the driven gear disc 32 is in clockwise rotation, the linkage gear disc 323 rotates clockwise under the transmission action of the belt, and the transmission gear 2 34 is in counterclockwise rotation at this time, and the transmission gear 1 333 and the linkage gear disc 323 rotate in the same direction, and then, the upper meshing gear rod 35 and the lower meshing gear rod 36 move relative to the upper and lower sides respectively, and finally realize the inward and outward movement of the roller pressing processing assembly 4 connected to the upper meshing gear rod 35 and the lower meshing gear rod 36, ensuring the guiding and limiting effect on the material belts on both sides of the tensile geogrid body 1, and realizing the transmission between multiple groups of components through one power source, reducing production energy consumption, and further improving the tensioning effect of the tensile geogrid body 1. Embodiment 5

[0054] See attached Figure 1-13 On the basis of the fourth embodiment, in order to achieve stable limiting of the overall activity of the roller pressing processing assembly 4:

[0055] The outer surfaces of the transmission gear 2 34 and the transmission gear 1 333 are respectively meshed and rotated with an upper meshing gear rod 35 and a lower meshing gear rod 36. The outer surfaces of the upper meshing gear rod 35 and the lower meshing gear rod 36 are evenly mounted on one side of the angle plate 41 and fixedly connected. A limiting component is arranged on the outer side of the upper meshing gear rod 35 and the lower meshing gear rod 36. The limiting component includes a limiting slot plate 5. The limiting slot plate 5 is fixedly mounted on the inner side wall of the tensioner body 2. A strip-shaped limiting slot 51 is opened on the inner wall of the limiting slot plate 5. A guide rod 52 is fixedly mounted on the inner surface of the strip-shaped limiting slot 51. A movable plate 54 is slidably connected to the outer surface of the guide rod 52. Both ends of the movable plate 54 are respectively fixedly connected with abutment springs 53. The other end of the abutment spring 53 is fixedly connected to the inner cavity side wall of the strip-shaped limiting slot 51, and the abutment spring 53 is slidably sleeved on the outside of the guide rod 52.

[0056] One side of the upper meshing gear rod 35 and the lower meshing gear rod 36 are both connected to the movable plate 54. When the two move relative to each other, the movable plate 54 moves on the inner side of the strip limit groove 51 and is guided and limited by the guide rod 52. Then, the abutment spring 53 will abut and protect the movable plate 54 to prevent the movable plate 54 from contacting and colliding with the inner wall of the strip limit groove 51 during the movement. In this way, the stability of the two groups of hot pressing roller groups 412 during relative movement is achieved, and the flattening of the side material strip 13 on the side of the material strip is further enhanced to prevent the side material strip 13 from warping and collapsing. Embodiment 6

[0057] See attached Figure 1-13 On the basis of the fifth embodiment, in order to achieve uniform hot pressing and flattening of the side of the tensile geogrid body 1 by the hot pressing roller group 412:

[0058] A movable groove 414 is provided on the inner wall of the buffer groove 40, and a connecting edge block 413 is slidably connected to the inner wall of the movable groove 414. Two groups of connecting edge blocks 413 are provided, and the two groups of connecting edge blocks 413 are fixedly installed at both ends of the mounting seat 411. The hot pressing roller group 412 includes an end cover 4121 and an electric heating pipe 4122. The electric heating pipe 4122 is arranged in the center of the hot pressing roller group 412. The end cover 4121 is fixedly installed at both ends of the hot pressing roller group 412 in a detachable manner. A heat conducting wire 4123 is arranged on the outside of the electric heating pipe 4122. A heat transfer cone block 4124 is fixedly installed on the inner ring side wall of the hot pressing roller group 412. A heat transfer tooth piece 4125 is arranged on the outside of the heat transfer cone block 4124. The heat transfer cone block 4124 and the heat transfer tooth piece 4125 are provided in multiple groups and are arranged in a circular array about the central axis of the hot pressing roller group 412.

[0059] The hot pressing roller group 412 is installed on the inner side of the mounting seat 411, and the connecting edge blocks 413 are installed at both ends of the mounting seat 411 to slide between the inner wall of the movable groove 414 to ensure the stable movement of the hot pressing roller group 412 on the inner side of the buffer groove 40, and the interior of the hot pressing roller group 412 is designed as a cavity structure, and the heat transfer cone blocks 4124 are evenly arranged inside the cavity to absorb heat from the electric heating pipe 4122 that emits heat from the center, and the connection between the heat conductive teeth 4125 and the heat transfer cone blocks 4124 is coordinated to further enhance the uniformity of heat on the outer wall of the hot pressing roller group 412, ensure uniform heat on the side of the transverse grid 12, and further realize hot pressing and smoothing treatment on the side of the tensile geogrid body 1 to avoid looseness caused by warping of the corners, thereby improving the overall tensile performance of the geogrid.

[0060] The working principle and use process of the present invention are as follows: in actual operation, first, the staff will sequentially pass the tensile geogrid body 1 to be stretched and tensioned through the lower end of the guide traction roller 21 and the upper part of the auxiliary pick roller 313, and pull one end of the tensile geogrid body 1 around the auxiliary pick roller 313 to the upper part of the guide traction roller 22, and the two ends of the tensile geogrid body 1 are connected by the externally connected winding and unwinding mechanism; then, after driving the forward and reverse motor 31 to work, the active gear disc 1 311 is driven to rotate, and the tensile geogrid body 1 is stretched and tensioned. The auxiliary roller 313 rotates, and the other end of the auxiliary roller 313 is connected to the active gear plate 2 312, and drives the active gear plate 1 311 and the active gear plate 2 312 to rotate synchronously. Under the action of the meshing teeth adaptation, the two sets of driven gear plates 32 rotate, and then the driven gear plate 32 rotates to drive the central shaft 1 320 to rotate. At this time, the active pulley 1 321 and the driven pulley 1 322 are driven by a belt transmission, so that the rotation of the central shaft 1 320 is realized, and the driven pulley 1 connected to one end of the central shaft 1 320 The toothed disc 32 rotates, and under the linkage transmission of the belt, the driving pulley 2 331 and the driven pulley 2 332 rotate in the same direction, and the specific rotation direction is realized according to the rotation direction of the driving toothed disc 1 311; when the driven toothed disc 32 is in clockwise rotation, the linkage toothed disc 323 rotates clockwise under the transmission action of the belt, and at this time, the transmission gear 2 34 is in counterclockwise rotation, and the transmission gear 1 333 and the linkage toothed disc 323 rotate in the same direction, and then the upper meshing gear rod 35 and the lower meshing gear rod 35 rotate in the same direction. The gear rod 36 moves relatively to the upper and lower positions respectively, and finally realizes the inward and outward movement of the roller processing assembly 4 connected to the upper meshing gear rod 35 and the lower meshing gear rod 36, ensuring the guiding and limiting effect on the material belts on both sides of the tensile geogrid body 1; when the upper meshing gear rod 35 and the lower meshing gear rod 36 move relatively, the two groups of hot pressing roller groups 412 are driven to smooth the sides of the tensile geogrid body 1 to avoid warping and looseness, thereby improving the tensile performance of the tensile geogrid body 1 when in use.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensioning machine for a flexible tensile geogrid, comprising a tensile geogrid body (1), the tensile geogrid body (1) comprising a longitudinal grid (11) and a transverse grid (12), the longitudinal grid (11) and the transverse grid (12) being arranged in a plurality of groups, the plurality of groups of the longitudinal grids (11) and the transverse grids (12) being arranged in a cross-overlapping manner, the sides of the longitudinal grids (11) and the transverse grids (12) being provided with side material strips (13), comprising the following steps: S1. Raw material preparation: After pre-cleaning the polymer raw materials, send them into the crusher for crushing and mixing; S2, extrusion molding: the pretreated raw materials are fed into the extruder for heating and melting; S3. Stretching and shaping: For plastic geogrids, the extruded sheet or strip is stretched longitudinally and / or transversely; S4. Cooling and curing: The stretched geogrid is cooled and cured by a cooling device to ensure the strength and stability of the product; S5. Shearing: Shear the cooled and solidified geogrid according to engineering requirements to form plates or coils of different sizes and shapes; S6, material strip shaping: Use a tensioning machine to tension the material strip to eliminate internal stress and unevenness, and assist in flattening the side of the material strip to improve the appearance quality of the product; S7. Inspection and packaging: Conduct quality inspection on the finished geogrids, including appearance inspection, size measurement and performance testing; The invention is characterized in that: the tensioner comprises a tensioner body (2), a guide traction roller 1 (21) and a guide traction roller 2 (22) are rotatably mounted on the inner side of the tensioner body (2), a traction tensioning mechanism (3) is arranged on one side of the guide traction roller 1 (21) and the guide traction roller 2 (22), the traction tensioning mechanism (3) comprises a linkage tensioning component, a limit component and a roller pressing processing component (4), the roller pressing processing component (4) comprises a mounting angle plate (41), a buffer groove (40) is provided on the inner wall of the mounting angle plate (41), a mounting seat (411) is movably mounted in the inner cavity of the buffer groove (40), a hot pressing roller group (412) is rotatably mounted at the lower end of the mounting seat (411), a buffer component (42) is arranged in the inner cavity of the buffer groove (40), and the lower end of the buffer component (42) is fixedly connected to the outer surface of the upper end of the mounting seat (411); The linkage tensioning assembly comprises a forward and reverse motor (31), the forward and reverse motor (31) being fixedly mounted on an outer surface of one side of a tensioning machine body (2), a driving toothed disc 1 (311) being fixedly connected to an output shaft of the forward and reverse motor (31), a driving toothed disc 2 (312) being arranged on the outer side of the driving toothed disc 1 (311), the driving toothed disc 1 (311) and the driving toothed disc 2 (312) being symmetrically distributed about a longitudinal centerline axis of the tensioning machine body (2), a connecting rod being fixedly connected to the inner side surfaces of the driving toothed disc 1 (311) and the driving toothed disc 2 (312), an auxiliary picking roller (313) being rotatably mounted on the outer surface of the connecting rod, the auxiliary picking roller (313) being arranged eccentrically relative to the center of the driving toothed disc 1 (311) and the driving toothed disc 2 (312); The outer surfaces of one side of the driving gear disc 1 (311) and the driving gear disc 2 (312) are meshed and rotatably engaged with a driven gear disc (32); a central shaft rod 1 (320) is fixedly mounted on the central inner surface of the driven gear disc (32); the outer surface of the central shaft rod 1 (320) is rotatably connected to the inner wall of the tensioner body (2); a driving pulley 1 (321) is fixedly mounted on the outer surface of the central shaft rod 1 (320); a driven pulley 1 (322) is provided on one side of the driving pulley 1 (321); the outer surface of the driving pulley 1 (321) is rotatably connected to the outer surface of the driven pulley 1 (322) via a belt; A central shaft rod 2 (33) is fixedly mounted on the central inner surface of the driven pulley 1 (322); an outer surface of one end of the central shaft rod 2 (33) is rotatably connected to the inner wall of the tensioner body (2); a linkage toothed disc (323) is fixedly mounted on the outer surface of the central shaft rod 2 (33); a driving pulley 2 (331) is arranged on the outer side of the linkage toothed disc (323); and the driving pulley 2 (331) is fixedly mounted on the outer surface of the central shaft rod 2 (33); a driven pulley 2 (332) is arranged on one side of the driving pulley 2 (331); the outer surface of the driving pulley 2 (331) is rotatably connected to the outer surface of the driven pulley 2 (332) via a belt; a central shaft rod 3 (3321) is fixedly connected to the central inner surface of the driven pulley 2 (332); and a transmission gear 1 (333) is fixedly mounted on the outer surface of one end of the central shaft rod 3 (3321); The outer surface of one side of the linkage toothed disc (323) is meshed and rotatably engaged with a transmission gear 2 (34); the central inner surface of the transmission gear 2 (34) is fixedly connected to a central shaft rod 4 (341); the outer surface of the central shaft rod 4 (341) is rotatably connected to the inner wall of the tensioner body (2); The outer surfaces of the transmission gear 2 (34) and the transmission gear 1 (333) are respectively meshed and rotated with an upper meshing gear rod (35) and a lower meshing gear rod (36); the outer surfaces of the upper meshing gear rod (35) and the lower meshing gear rod (36) are evenly mounted on one side of an angle plate (41) and fixedly connected; and the outer sides of the upper meshing gear rod (35) and the lower meshing gear rod (36) are provided with a limit assembly; The inner wall of the buffer groove (40) is provided with a movable groove (414), and the inner wall of the movable groove (414) is slidably connected with a connecting edge block (413), and two groups of the connecting edge blocks (413) are provided, and the two groups of the connecting edge blocks (413) are fixedly mounted on both ends of the mounting seat (411), and the hot pressing roller group (412) includes an end cover (4121) and an electric heating pipe (4122), and the electric heating pipe (4122) is arranged in the center of the hot pressing roller group (412), and the end cover (4121) is provided at the inner side of the hot pressing roller group (412). 121) are fixedly mounted at both ends of the hot pressing roller group (412) in a detachable manner, a heat conductive wire (4123) is arranged on the outside of the electric heating tube (4122), a heat transfer cone block (4124) is fixedly mounted on the inner ring side wall of the hot pressing roller group (412), and a heat conductive tooth plate (4125) is arranged on the outside of the heat transfer cone block (4124), and the heat transfer cone block (4124) and the heat conductive tooth plate (4125) are arranged in a plurality of groups and arranged in a circular array about the central axis of the hot pressing roller group (412).

2. The tensioning machine of the flexible tensile geogrid according to claim 1, characterized in that: The limiting assembly comprises a limiting slot plate (5), the limiting slot plate (5) being fixedly mounted on the inner side wall of the tensioner body (2), a strip-shaped limiting slot (51) being provided on the inner wall of the limiting slot plate (5), a guide rod (52) being fixedly mounted on the inner surface of the strip-shaped limiting slot (51), a movable plate (54) being slidably connected to the outer surface of the guide rod (52), both ends of the movable plate (54) being fixedly connected to abutment springs (53), the other end of the abutment spring (53) being fixedly connected to the inner cavity side wall of the strip-shaped limiting slot (51), and the abutment spring (53) being slidably sleeved on the outside of the guide rod (52).

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