CN117127578A - Fiber reinforced geocell for deep impregnation nondestructive press fitting and production process - Google Patents
Fiber reinforced geocell for deep impregnation nondestructive press fitting and production process Download PDFInfo
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- CN117127578A CN117127578A CN202311197503.8A CN202311197503A CN117127578A CN 117127578 A CN117127578 A CN 117127578A CN 202311197503 A CN202311197503 A CN 202311197503A CN 117127578 A CN117127578 A CN 117127578A
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- 239000000835 fiber Substances 0.000 title claims abstract description 71
- 238000005470 impregnation Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000002131 composite material Substances 0.000 claims abstract description 36
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 18
- 238000004026 adhesive bonding Methods 0.000 claims description 9
- 230000007547 defect Effects 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000007731 hot pressing Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000003618 dip coating Methods 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- 238000007788 roughening Methods 0.000 claims description 4
- 229920002748 Basalt fiber Polymers 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000000916 dilatatory effect Effects 0.000 claims description 2
- 230000001066 destructive effect Effects 0.000 claims 5
- 230000000694 effects Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 230000004224 protection Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012681 fiber drawing Methods 0.000 description 1
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- 229920001903 high density polyethylene Polymers 0.000 description 1
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- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- 230000035882 stress Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/005—Soil-conditioning by mixing with fibrous materials, filaments, open mesh or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D28/00—Producing nets or the like, e.g. meshes, lattices
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/227—Control of the stretching tension; Localisation of the stretching neck; Draw-pins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/02—Rollers
- D06B23/021—Compressive rollers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0084—Geogrids
Abstract
The application belongs to the technical field of geocells, and discloses a fiber reinforced geocell with deep impregnation and nondestructive press fitting, which comprises a plurality of strips arranged along the width direction of the fiber reinforced geocell, wherein each strip consists of a fiber layer and a composite material layer of a deep impregnation coating fiber layer, a plurality of connection points are uniformly distributed on each strip at intervals, the corresponding connection points on two adjacent strips are connected through a lock catch at intervals to form nodes, and two adjacent rows of nodes are distributed in a staggered manner. By adopting the fiber layer and the composite material layer to form the strip, the tensile strength of the strip is greatly improved, and the composite material of the outer layer has enough toughness, so that the transverse brittle fracture of the strip is effectively avoided; the corresponding connection points on the adjacent strips are connected through the lock catches, the strips are not required to be welded, punched, torn and the like, the integrity of the strips is ensured, the high-strength bearing characteristic of the strips can be fully exerted, and the comprehensive bearing capacity of the geocell is effectively ensured.
Description
Technical Field
The application relates to the technical field of geocells, in particular to a fiber reinforced geocell with deep impregnation and nondestructive press fitting and a production process thereof.
Background
The geocell is a reinforced and reinforced material, has a certain height, and can effectively disperse vertical load, so that a damaged sliding line on the surface of a foundation subgrade is transmitted to a deep layer, a deep foundation effect is formed, and uneven settlement is reduced. The geocell is used as a geotechnical material with obvious mechanical property advantages, is widely applied to the construction of various processes such as railways, highways, dykes, water conservancy and the like, and has higher and higher requirements on the mechanical property of the geocell.
At present, sheets adopted in domestic geocells are mainly made of polymer materials such as PP, HDPE, PET and the like, and the adopted connection modes are mainly splicing, riveting, ultrasonic welding and the like. The product in the current market has the performance defects of sheet secondary damage, poor connection effect, low production efficiency, higher production cost and the like due to the reasons of technology, materials and the like, and the performance of the cell product is seriously restricted.
Disclosure of Invention
In order to solve the problems, the application provides a fiber reinforced geocell with deep impregnation and nondestructive press fitting and a production process thereof.
The technical aim of the application is realized by the following technical scheme: the utility model provides a fiber reinforcement formula geotechnique's check room of harmless pressure equipment of degree of depth flooding, includes a plurality of strips of arranging along its width direction, the strip comprises fibrous layer and the composite material layer of degree of depth flooding cladding fibrous layer, evenly spaced distributes on the strip has a plurality of tie points, and the tie point interval that corresponds on two adjacent strips is connected through the hasp and is formed the node, and two adjacent rows of nodes are the staggered distribution.
By adopting the technical scheme, the strip is composed of the fiber layer and the composite material layer, so that the tensile strength of the strip is greatly improved, the composite material of the outer layer has enough toughness, and the transverse brittle fracture of the strip is effectively avoided; the corresponding connection points on the adjacent strips are connected through the lock catches, the strips are not required to be welded, punched and torn, the integrity of the strips is ensured, the high-strength bearing characteristic of the strips can be fully exerted, and the comprehensive bearing capacity of the geocell is effectively ensured.
Further, the hasp includes first locking plate and second locking plate, the protrusion is provided with two locking pins on the face of one side of first locking plate, two interval between the locking pin is greater than the width of strip, two locking holes have been seted up on the face of second locking plate correspondingly.
Through adopting above-mentioned technical scheme, be greater than the width setting of strip with the interval between two locking pins, just so need not punch on the strip, further ensured the integrality of strip.
Further, the end part of the locking pin is provided with a boss-shaped barb.
Through adopting above-mentioned technical scheme, be provided with boss shape barb at the locking pin tip, the locking pin just can't extract in case in inserting the locking hole like this, can effectively avoid geotechnique's check room because of the hasp pine takes off the result of use that influences the product in the use.
Further, a reinforcing vertical rib is arranged on one side plate surface, far away from the strip, of the first locking plate and the second locking plate, and the length direction of the reinforcing vertical rib is consistent with the width direction of the strip.
By adopting the technical scheme.
Further, the fiber layer comprises glass fibers, basalt fibers, carbon fibers, polyester fibers and steel fibers which are pre-tensioned and fully dispersed, and the composite material layer is deeply immersed and coated on the fiber layer.
By adopting the technical scheme, the fiber layers are pre-tensioned and fully dispersed, so that the consistency of fibers in a stretched state is realized, the consistency of the stretched state of each fiber is ensured, and the comprehensive reinforcement effect of one-to-one and more than two is achieved.
Furthermore, both side surfaces of the strip, and one side surfaces of the first locking plate, the second locking plate, which are pressed with and contacted with the strip are rough surfaces.
Through adopting above-mentioned technical scheme, with the both sides surface of strip and first locking board, second locking board pressure equipment contact strip's a side surface all set up to the roughness, can improve the frictional force of strip surface and hasp pressure equipment surface and soil and stones to both ensure the locking intensity of hasp, ensure the joint strength of check room and engineering basic material again.
A production process of a fiber reinforced geocell in deep impregnation nondestructive press fitting comprises the following steps:
s1, upper belt: inserting the end part of the strip coil into a positioning reference clamp for automatic clamping and fixing;
s2, conveying a belt: uncoiling the strip coil through an automatic strip feeding device, moving the strip coil to a designated position at one end of the equipment along one direction of the strip length direction according to a set length, returning after the strip positioning is finished, and moving the strip coil to a designated position at the other end of the equipment along the other direction of the strip length direction to form two transverse strips;
s3, positioning: the positioning device pops up to position the connecting point position of the transverse strip to be locked;
s4, gluing: the automatic gluing device is used for gluing two adjacent contact surfaces at the connecting point of the two transverse strips according to the positioning;
s5, locking: the locking device drives the first locking plate and the second locking plate to move towards the connecting point of the two transverse strips, so that the locking pins are inserted into the locking pins Kong Nasuo to be locked, and the transverse strips are positioned between the two locking pins of the first locking plate;
s6, shifting: after all the connection points to be locked on the two transverse strips are locked, the two transverse strips are downwards shifted, the automatic belt feeding device returns and moves to a preset position again to form another transverse strip;
repeating the steps S3-S6, and locking the connection points of the two transverse strips which are positioned above and are required to be locked;
s7, offline packaging: after the number of the transverse strips to be pressed reaches a set value, the transverse strips are automatically cut at a set position where the tail ends of the strips 10 are connected with the pressed products, and after the lattice products to be pressed descend and are automatically conveyed to the set position, the products are bound and packaged.
Through adopting above-mentioned technical scheme, form a plurality of horizontal strips of horizontal arrangement with a whole strip after the gyration is buckled, then lock through the hasp and form the node, need not to punch a hole or fluting etc. to the check room strip harm processing of strip performance, ensured the integrality of strip, can give full play to the high-strength bearing characteristic of check room strip, make the comprehensive bearing capacity of check room product obtain powerful assurance.
Further, the production process of the strip comprises the following steps:
s1, performing yarn releasing by adopting an active rotation untwisting and constant tension process;
s2, fully dispersing and tiling the tows through a yarn guiding device;
s3, fully dilating each yarn, and controlling yarn tension deviation within 1%;
s4, heating the yarn by adopting a nanometer far infrared closed loop control heating mode, wherein the temperature difference is controlled within a range of +/-1 ℃;
s5, adopting a double-screw high-pressure coating and dip-coating process, and carrying out 360-degree full coating on the fiber yarn by using a composite material to ensure that the deviation of melt flow in unit time is within 0.2 percent;
s6, adopting a plurality of groups of press rolls to perform continuous combined rolling to eliminate gaps between the compacted inner layer fibers and the outer layer composite material;
s7, adopting an S-shaped winding hot pressing device to sufficiently eliminate the inner layer fiber, the outer layer composite material and the gap defect between the inner layer fiber and the outer layer composite material;
s8, adopting an S-shaped internal circulation cooling roller set device to rapidly and fully cool and shape the composite material after hot pressing;
s9, roughening the surface of the finished product.
By adopting the technical scheme, the fiber yarn filaments are subjected to full dispersion and constant tension pre-stretching treatment, so that the consistency of the fiber stretching degree is realized, the consistency of the bearing state of each fiber is ensured, and the reinforcement effect is improved; and the high-pressure coating and dip-coating process is utilized to realize complete coating of the composite material on the fiber layer, so that the brittle failure defect of the fiber is effectively avoided, and the high strength chemical property of the fiber can be fully exerted.
In summary, the application has the following beneficial effects: in the application, the strip is composed of the fiber layer and the composite material layer, so that the tensile strength of the strip is greatly improved, the composite material of the outer layer has enough toughness, and the transverse brittle fracture of the strip is effectively avoided; the corresponding connection points on the adjacent strips are connected through the lock catches, the strips are not required to be welded, punched, torn and the like, the integrity of the strips is ensured, the high-strength bearing characteristic of the strips can be fully exerted, and the comprehensive bearing capacity of the geocell is effectively ensured.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
fig. 2 is a schematic structural view of a latch portion according to an embodiment of the present application.
In the figure: 10. a strap; 20. locking; 21. a first locking plate; 22. a second locking plate; 23. a locking pin; 24. a locking hole; 25. a boss-shaped barb; 26. reinforcing the vertical ribs; 30. and (5) a node.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application; it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the protection scope of the present application.
As shown in fig. 1-2, the embodiment of the application discloses a fiber reinforced geocell for deep impregnation nondestructive press fitting, which comprises a plurality of strips 10 arranged along the width direction of the fiber reinforced geocell, wherein a plurality of connection points are uniformly distributed on the strips 10 at intervals, the corresponding connection points on two adjacent strips 10 are connected at intervals through a lock catch 20 to form a node 30, the adjacent two rows of nodes 30 are distributed in a staggered manner, and a net structure is formed after the strips 10 are stretched.
In particular, the strip 10 is composed of a fibrous layer and a composite layer of deeply impregnated clad fibrous layers. The fiber layer comprises high-strength fibers such as glass fibers, basalt fibers, carbon fibers, polyester fibers, steel fibers and the like which are pre-tensioned and fully dispersed, and the use of the high-strength fibers enables the strip 10 to have extremely high tensile strength, so that the tensile strength of the whole geocell is effectively improved; the use of inorganic fibers such as glass fibers greatly reduces the consumption of polymer composite materials such as PP, PET and the like while improving the performance of products, and is beneficial to emission control and carbon reduction. The composite material layer is deeply impregnated and coated on the fiber layer, so that the fiber layer has enough flexibility, and the transverse embrittlement of the strip 10 is avoided.
Roughening treatment is further required on the two side surfaces of the strip 10, so that the two side surfaces of the strip 10 are roughened surfaces, friction force between the surface of the strip 10 and the earth and stone material can be increased, and locking effect of the geocell is improved.
The lock catch 20 is made of a composite material with corrosion resistance, ageing resistance and ultraviolet resistance, so that the service life of the lock catch in a working environment is ensured, and the lock catch 20 made of the composite material has high tensile strength and strong bending resistance and impact resistance. Specifically, the lock catch 20 includes a first locking plate 21 and a second locking plate 22, two locking pins 23 are provided on a side plate surface of the first locking plate 21 in a protruding manner, and two locking holes 24 are provided on a plate surface of the second locking plate 22 correspondingly. The locking pin 23 of the first locking plate 21 is inserted into the locking hole 24 of the second locking plate 22 to sandwich the two strips 10 for locking. When the device is specifically arranged, the distance between the two locking pins 23 is larger than the width of the strip 10, so that the strip 10 can be placed between the two locking pins 23, the strip 10 does not need to be perforated, the integrity of the strip 10 is ensured, the high-strength bearing characteristic of the strip 10 can be fully exerted, and the comprehensive bearing capacity of the geocell is effectively ensured.
Furthermore, the end of the locking pin 23 is provided with the boss-shaped barb 25, so that the lock catch 20 can be used only once, is difficult to pull out after being locked, and can ensure that loosening and tripping phenomena can not occur after being locked. A reinforcing bead 26 is provided on a side plate surface of the first locking plate 21 and the second locking plate 22 remote from the strap 10, and a longitudinal direction of the reinforcing bead 26 coincides with a width direction of the strap 10. This ensures that the shackle 20 is sufficiently rigid in the locking direction to avoid loosening of the lock. The surface of one side of the first locking plate 21 and the second locking plate 22, which is in press-fit contact with the strip 10, is provided with a rough surface, so that the friction force between the first locking plate 21, the second locking plate 22 and the surface of the strip 10 can be increased, the sliding between the two strips 10 and between the strip 10 and the two locking plates 21 and 22 can be effectively prevented, and the locking function is ensured.
Experiments prove that the tensile yield strength of the geocell is 616Mpa, the tensile strength at the node 30 is 210N/cm, the shearing resistance of the connecting piece at the node 30 is 540N, the breaking tension of the unit width of the strip 10 is 1233N/cm, and the breaking elongation of the strip 10 is less than or equal to 3%.
The embodiment also discloses a production process of the fiber reinforced geocell of deep impregnation nondestructive press fitting, which is used for producing the geocell and specifically comprises the following steps:
s1, upper belt: the end part of the strip coil is inserted into a positioning reference clamp for automatic clamping and fixing, and an automatic sensing device is arranged in the clamp, so that the dimensional accuracy of the clamping length is required to be ensured to be within +/-1 mm.
S2, conveying a belt: uncoiling the strip coil through an automatic strip feeding device, moving the strip coil to a designated position at one end of the equipment along one direction of the strip length direction according to a set length, returning after the strip positioning is finished, and moving the strip coil to a designated position at the other end of the equipment along the other direction of the strip length direction to form two transverse strips; in the process of feeding the belt, an adjustable damping device is arranged to avoid the tremble of the belt 10 in the process of uncoiling and traction, and ensure that the length deviation of the belt is within +/-5 mm.
S3, positioning: the positioning device pops up to position the position of the connecting point to be locked on the transverse strip; the positioning precision is controlled within + -1 mm, so as to meet the standard requirement.
S4, gluing: the automatic gluing device is used for gluing two adjacent contact surfaces at the connecting point of the two transverse strips according to the positioning; the glue spreading requirement is uniform, the glue spreading area meets the preset requirement, and the glue spreading deviation is within 1 g. Thus, the locking effect of the strip 10 after locking can be ensured, the tensile strength, shearing resistance and other mechanical properties of the locking position can be improved, and the strip 10 is not damaged.
S5, locking: the locking device drives the first locking plate 21 and the second locking plate 22 to move towards the connecting point of the two transverse strips, so that the locking pins 23 are inserted into the locking holes 24 to be locked, and the transverse strips are positioned between the two locking pins 23 of the first locking plate 21. The lock catch 20 is made of a high-strength thermoplastic composite material, so that the locking node is ensured to have high mechanical property and enough bearing capacity; the reinforcing ribs 26 are arranged on the two sides of the lock catch 20, so that the lock catch 20 has enough bending rigidity in the direction vertical to the locking surface, and the stable and effective locking of the locking surface of the strip 10 is ensured; the locking pin 23 of the lock catch 20 is provided with a boss-shaped barb 25 to form a non-detachable disposable locking structure so as to ensure the reliability of the locking point. After the locking, the shear strength at the node 30 reached 540N/cm. In addition, the strip 10 is positioned between the two locking pins 23, so that the strip 10 does not need to be perforated, the integrity of the strip 10 is not damaged, the overall strength of the strip 10 is ensured, the perforation process is reduced, and the production efficiency is improved.
S6, shifting: after all the connection points to be locked on the two transverse strips are locked, the first strip and the connection point after the press fitting is completed are downwards shifted, the automatic belt feeding device returns, and the automatic belt feeding device moves to a preset position again to form the other transverse strip.
The steps S3-S6 are then repeated to lock the connection point of the two transverse strips located above that to be locked. Specifically, the connection points on each transverse strip are marked according to the same direction, the corresponding odd points on the first transverse strip and the second transverse strip are locked by the lock catches 20, the corresponding even points on the second transverse strip and the third transverse strip are locked by the lock catches 20, the corresponding odd points on the third transverse strip and the fourth transverse strip are locked by the lock catches 20, and so on, so that after the whole geocell is pulled open, a net structure with a plurality of meshes is formed.
S7, offline packaging: after the number of the transverse strips to be pressed reaches a set value, the transverse strips are automatically cut at a set position where the tail ends of the strips 10 are connected with the pressed products, and after the lattice products to be pressed descend and are automatically conveyed to the set position, the products are bound and packaged.
The geotechnical cell produced by the process does not need to process the cell strip 10 with damage such as punching or slotting and the like to the performance of the strip 10 through the one-time locking process of the lock catch 20, ensures the integrity of the strip 10, can fully exert the high-strength bearing characteristic of the cell strip 10, and ensures the total bearing capacity of cell products to be effectively ensured.
Further, the production process of the strip 10 used in the geocell includes the following steps:
s1, carrying out yarn releasing by adopting an active rotation untwisting and constant tension process, ensuring that no twisting phenomenon occurs in the yarn releasing process, and simultaneously, ensuring that the yarn releasing tension deviation of each strand of yarn is within +/-0.5 percent.
S2, fully dispersing and tiling the tows through a yarn guiding device, ensuring that the deviation of the yarn quantity in unit area is less than 1% on the cross section of the dispersed yarns after tiling, and the deviation of the gram weight of the scattered fine yarn bundles is within +/-3%.
S3, under the condition of strictly controlling the laying tension, each yarn is fully relaxed, so that the defects of twisting, curling, bending and the like are avoided, the yarn tension deviation is controlled within 1%, and therefore equal and uniform stress of each yarn in bearing can be ensured, and the high-strength bearing capacity of the fiber is fully exerted.
S4, heating the yarn by adopting a nanometer far infrared closed-loop control heating mode, wherein the temperature difference is controlled within a range of +/-1 ℃, so that moisture attached to the outer surface of the fiber can be uniformly and fully removed, and the guarantee is provided for ensuring the fiber to be fully and deeply impregnated by the composite material.
S5, adopting a double-screw high-pressure coating and dip-coating process, and carrying out 360-degree full coating on the fiber yarn by using the composite material to ensure that the deviation of the melt flow in unit time is within 0.2 percent.
S6, adopting a plurality of groups of press rollers to carry out continuous combined rolling, and eliminating gaps between the compacted inner layer fibers and the outer layer composite material.
S7, adopting an S-shaped winding hot pressing device, fully eliminating the inner layer fiber, the outer layer composite material and the gap defect between the inner layer fiber and the outer layer composite material, ensuring the perfect combination of the fiber layer and the composite material layer in the strip 10, fully playing the bearing capacity of the fiber, and ensuring that the strip 10 after the finished product has no gap defect which can be seen by naked eyes.
S8, performing rapid and sufficient cooling shaping on the composite material after hot pressing by adopting an S-shaped internal circulation cooling roller set device so as to ensure perfect and sufficient impregnation and cladding of the composite material and fibers in the finished strip 10.
S9, roughening the surface of the finished product, improving the friction coefficient of the surface of the finished product, and ensuring that the impregnating effect of the strip 10 and any damage to the inner layer fiber are not caused.
The strip 10 is wound into a roll for storage after production. The ribbon 10 produced by the process realizes the consistency of the fiber drawing state by fully dispersing and pre-stretching the fibers under constant tension, ensures the uniform bearing of each fiber and achieves the comprehensive reinforcement effect of one-to-two; the high-strength performance advantage of the fiber is exerted, the limitation of low bearing capacity of the common high polymer material strip 10 is broken through, the dosage of the high polymer material (carbon-containing material) is greatly reduced, and the national industrial policies of carbon control and emission reduction and popularization and use of the high-performance fiber material are met. And through the use of a deep impregnation process, the deep and complete coating of single fiber level is realized, the brittle failure defect of the fiber is effectively overcome, and the high strength chemical property of the fiber can be fully exerted.
The above description is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above examples, and all technical solutions belonging to the concept of the present application belong to the protection scope of the present application. It should be noted that modifications and adaptations to the present application may occur to one skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (8)
1. The fiber reinforced geocell comprises a plurality of strips (10) which are arranged along the width direction of the fiber reinforced geocell, and is characterized in that: the strip (10) is composed of a fiber layer and a composite material layer deeply immersed and coated with the fiber layer, a plurality of connecting points are uniformly distributed on the strip (10) at intervals, the corresponding connecting points on two adjacent strips (10) are connected at intervals through the lock catches (20) to form the nodes (30), and the adjacent two rows of nodes (30) are distributed in a staggered mode.
2. The deeply-impregnated non-destructive press-fit fiber-reinforced geocell of claim 1, wherein: the lock catch (20) comprises a first locking plate (21) and a second locking plate (22), two locking pins (23) are arranged on one side plate surface of the first locking plate (21) in a protruding mode, the distance between the two locking pins (23) is larger than the width of the strip (10), and two locking holes (24) are correspondingly formed in the plate surface of the second locking plate (22).
3. The deeply-impregnated non-destructive press-fit fiber-reinforced geocell of claim 2, wherein: the end part of the locking pin (23) is provided with a boss-shaped barb (25).
4. A deeply-impregnated non-destructive press-fit fiber-reinforced geocell in accordance with claim 3, wherein: a reinforcing stud (26) is arranged on a side plate surface, far away from the strip (10), of the first locking plate (21) and the second locking plate (22), and the length direction of the reinforcing stud (26) is consistent with the width direction of the strip (10).
5. The deeply-impregnated non-destructive press-fit fiber-reinforced geocell of claim 1, wherein: the fiber layer comprises glass fibers, basalt fibers, carbon fibers, polyester fibers and steel fibers which are pre-tensioned and fully dispersed, and the composite material layer is deeply immersed in the coating fiber layer.
6. The deeply-impregnated non-destructive press-fit fiber-reinforced geocell of claim 2, wherein: both side surfaces of the strip (10) and one side surface of the first locking plate (21) and the second locking plate (22) which are pressed and contacted with the strip (10) are rough surfaces.
7. A fiber reinforced geocell production process for deep impregnation nondestructive press fitting is characterized by comprising the following steps of: the method comprises the following steps:
s1, upper belt: inserting the end part of the strip coil into a positioning reference clamp for automatic clamping and fixing;
s2, conveying a belt: uncoiling the strip coil through an automatic strip feeding device, moving the strip coil to a designated position at one end of the equipment along one direction of the strip length direction according to a set length, returning after the strip positioning is finished, and moving the strip coil to a designated position at the other end of the equipment along the other direction of the strip length direction to form two transverse strips;
s3, positioning: the positioning device pops up to position the connecting point position of the transverse strip to be locked;
s4, gluing: the automatic gluing device is used for gluing two adjacent contact surfaces at the connecting point of the two transverse strips according to the positioning;
s5, locking: the locking device drives the first locking plate (21) and the second locking plate (22) to move towards the connecting point of the two transverse strips, so that the locking pins (23) are inserted into the locking holes (24) to be locked, and the transverse strips are positioned between the two locking pins (23) of the first locking plate (21);
s6, shifting: after all the connection points to be locked on the two transverse strips are locked, the two transverse strips are downwards shifted, the automatic belt feeding device returns and moves to a preset position again to form another transverse strip;
repeating the steps S3-S6, and locking the connection points of the two transverse strips which are positioned above and are required to be locked;
s7, offline packaging: after the number of the transverse strips to be pressed reaches a set value, the transverse strips are automatically cut at a set position where the tail ends of the strips 10 are connected with the pressed products, and after the lattice products to be pressed descend and are automatically conveyed to the set position, the products are bound and packaged.
8. The process for producing the deeply-immersed nondestructive press-fitted fiber reinforced geocell, as claimed in claim 7, is characterized in that: the production process of the strip (10) comprises the following steps:
s1, performing yarn releasing by adopting an active rotation untwisting and constant tension process;
s2, fully dispersing and tiling the tows through a yarn guiding device;
s3, fully dilating each yarn, and controlling yarn tension deviation within 1%;
s4, heating the yarn by adopting a nanometer far infrared closed loop control heating mode, wherein the temperature difference is controlled within a range of +/-1 ℃;
s5, adopting a double-screw high-pressure coating and dip-coating process, and carrying out 360-degree full coating on the fiber yarn by using a composite material to ensure that the deviation of melt flow in unit time is within 0.2 percent;
s6, adopting a plurality of groups of press rolls to perform continuous combined rolling to eliminate gaps between the compacted inner layer fibers and the outer layer composite material;
s7, adopting an S-shaped winding hot pressing device to sufficiently eliminate the inner layer fiber, the outer layer composite material and the gap defect between the inner layer fiber and the outer layer composite material;
s8, adopting an S-shaped internal circulation cooling roller set device to rapidly and fully cool and shape the composite material after hot pressing;
s9, roughening the surface of the finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311197503.8A CN117127578A (en) | 2023-09-18 | 2023-09-18 | Fiber reinforced geocell for deep impregnation nondestructive press fitting and production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311197503.8A CN117127578A (en) | 2023-09-18 | 2023-09-18 | Fiber reinforced geocell for deep impregnation nondestructive press fitting and production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117127578A true CN117127578A (en) | 2023-11-28 |
Family
ID=88856419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311197503.8A Pending CN117127578A (en) | 2023-09-18 | 2023-09-18 | Fiber reinforced geocell for deep impregnation nondestructive press fitting and production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117127578A (en) |
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2023
- 2023-09-18 CN CN202311197503.8A patent/CN117127578A/en active Pending
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