CN113478640B - Preparation process of optical fiber light guide concrete and optical fiber penetrating and guiding equipment - Google Patents
Preparation process of optical fiber light guide concrete and optical fiber penetrating and guiding equipment Download PDFInfo
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- CN113478640B CN113478640B CN202110935733.4A CN202110935733A CN113478640B CN 113478640 B CN113478640 B CN 113478640B CN 202110935733 A CN202110935733 A CN 202110935733A CN 113478640 B CN113478640 B CN 113478640B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0037—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with elements being able to conduct light, e.g. light conducting fibers
Abstract
The invention belongs to the technical field of preparation of special concrete, and particularly relates to a preparation process of optical fiber light guide concrete and optical fiber penetrating and guiding equipment. The method is characterized by comprising the following steps: A. arranging and pre-arranging light guide fibers in the forming box body by utilizing optical fiber penetrating and guiding equipment; B. preparing high-strength fine concrete castable; C. pouring high-strength fine concrete castable into a forming box body; D. and (3) removing the mold after pouring and molding for 1 day, and cutting and molding after standard maintenance for 28 days (the temperature is 20 +/-2 ℃, and the relative humidity is more than 95%). The invention can improve the preparation efficiency and quality while ensuring that various performances of the light guide concrete are improved.
Description
Technical Field
The invention belongs to the technical field of preparation of special concrete, and particularly relates to a preparation process of optical fiber light guide concrete and optical fiber penetrating and guiding equipment.
Background
The light guide concrete is prepared by adding light guide materials such as optical fibers or resin into a concrete base material to enable the concrete to have a light guide effect. Light guide concrete is mainly applied to architectural facilities in environments such as urban gardens, interior decoration, underground traffic and the like, and has the remarkable advantages that: from the perspective of building energy conservation, the light guide concrete utilizes solar energy for illumination, so that daily illumination energy consumption can be obviously reduced, and energy is saved; for the emergency of a building, the light guide concrete can be used at the safe exit to penetrate light so as to provide an indication for escape; the environment self-adaptive transparent concrete in the tunnel is illuminated by utilizing the light guide property of the environment self-adaptive transparent concrete, so that safe running is provided for vehicles. A large number of high-rise city buildings, large underground structures and the like to be built in China are good application scenes of the light guide concrete.
The light guide concrete is formed by combining a large number of light transmission materials (optical fibers, acrylic, resin and the like) and concrete, has high light transmittance, and light can be transmitted from one side of the concrete to the other side of the concrete. The light guide concrete prefabricated brick and the light guide concrete hanging plate are mainly in two forms, for example, the light guide concrete hanging plate is taken as an example, the shadow of an object on the bright side can appear on the dark side under the irradiation of a light source, and an object close to the shadow can show a bright outline. The special and interesting artistic effect greatly lightens the sense of heaviness brought by the common concrete wall surface, and makes people feel that the whole indoor space presents the visual feeling of lightness, brightness and perspective.
The existing light guide concrete has the following defects in actual use: (1) The base material is not compact enough, and the problems of low impact resistance, light transmission and reduction performance, low fire resistance limit and poor durability exist; (2) The cement used as the raw material for preparing the concrete has higher consumption, and the materials such as the silica fume, the quartz powder, the quartz sand and the like have high price; (3) Because the viscosity of the mixture of the raw materials used by the traditional concrete is high, the rheological property is not ideal; (4) large consumption of glue material leads to much hydration heat; (5) The high viscosity of the mixture causes difficulty in stirring, difficulty in later cleaning and great damage to equipment.
In addition, the penetrating and guiding modes of the light guide fibers still depend on manual operation, so that the penetrating and guiding are inconvenient to carry out during the manufacturing of small-batch test pieces, and the efficient manufacturing of large-batch or large-size concrete test pieces cannot be realized.
In view of this, the applicant designs and develops a preparation process of the optical fiber light guide concrete and a special optical fiber penetrating and guiding device for preparing the optical fiber light guide concrete, which can improve various performances of the light guide concrete and improve preparation efficiency and quality.
Disclosure of Invention
The invention aims to provide a preparation process of optical fiber light guide concrete and optical fiber penetrating and guiding equipment, which can improve the preparation efficiency and quality while ensuring that various performances of the light guide concrete are improved.
In order to achieve the purpose, the invention provides the following technical scheme: the preparation process of the optical fiber light guide concrete is characterized by comprising the following steps of:
A. arranging and pre-arranging light guide fibers in the forming box body by utilizing optical fiber penetrating and guiding equipment;
B. preparing high-strength fine concrete castable;
C. pouring high-strength fine concrete castable into a forming box body;
D. removing the mold after pouring and molding for 1 day, and performing standard maintenance for 28 days at the maintenance temperature of 20 +/-2 ℃ and the relative humidity of more than 95 percent; cutting and forming after the maintenance is finished, and performing standard maintenance;
the forming box body comprises a bottom plate, a front side plate, a rear side plate, a left side plate and a right side plate, wherein the front side plate, the rear side plate, the left side plate and the right side plate are detachably mounted and fixed on the front side, the rear side, the left side and the right side of the bottom plate respectively;
at least two groups of threading plates are arranged in the forming box body, and a plurality of threading holes are formed in each threading plate; the threading holes are arranged on the threading plate in a square matrix type with the number of rows being n and the number of columns being m; the light guide fiber transversely passes through the threading holes on the threading plates.
Preferably, a front side insertion groove and a rear side insertion groove which are the same as the threading plates in number are respectively and longitudinally formed in the front side plate and the rear side plate, and two side vertical edges of each threading plate are respectively inserted and fixed in the front side insertion groove and the rear side insertion groove; the threading plates are designed in a split mode, and the dividing lines between the split bodies of every two adjacent threading plates are straight lines where the central points of the threading holes in each row are connected.
Preferably, the preparation process of the high-strength fine concrete castable comprises the following steps:
B1. preparing ingredients: the high-strength fine concrete castable comprises the following material components in parts by mass:
350-410 parts of cement;
30-50 parts of fly ash;
160-220 parts of mineral powder;
127-210 parts of limestone powder;
146-195 parts of metakaolin;
13.8-23.9 parts of a polycarboxylic acid water reducing agent;
1231-1369 parts of river sand;
117-195 parts of reinforcing fibers;
138.2-217 parts of water;
wherein the reinforcing fiber is steel fiber or imitation steel fiber or PE fiber.
B2. Stirring: the feeding sequence comprises river sand, cement, fly ash, mineral powder, limestone powder, high-activity metakaolin and reinforcing fibers, and the steps of firstly performing dry stirring for 5min, adding water and a polycarboxylic acid water reducing agent, and then stirring for 15 min.
Preferably, the cementing material comprises cement, fly ash, mineral powder, metakaolin and limestone powder, and the mass ratio of the cement: fly ash: mineral powder: limestone powder: metakaolin = 0.4088; the mass ratio of the water to the cementing material is 0.17-0.20.
Preferably, the river sand is classified according to fine sand fraction: 0.15-0.3mm, medium sand fraction: 0.3-0.6mm, coarse sand fraction: and three size fractions of 0.6-1.18mm are divided, wherein the fine sand, the medium sand and the coarse sand are blended according to the mass ratio of 0.18.
The invention relates to an optical fiber threading device, which is characterized in that: the wire guiding device is arranged above the threading device, and the threading device is fixed on the overturning positioning device;
the threading device comprises a first threading plate, a second threading plate, a first walking device, a second walking device and a walking guide device, wherein the first threading plate and the second threading plate are respectively connected with the first walking device and the second walking device in a detachable mode, and the first walking device and the second walking device can move linearly along the walking guide device;
a plurality of threading holes are formed in the first threading plate and the second threading plate; an inflatable thread fixing air cushion is arranged on one side, away from the first threading plate, of the second threading plate; the inflatable thread fixing air cushion is provided with thread fixing through holes, and the number and the positions of the thread fixing through holes are the same as those of the thread holes in the second threading plate and correspond to those of the thread holes in the second threading plate one by one; one side of the inflatable fixed line air cushion is attached and fixed on the second threading plate, an inflation tube communicated with the internal inflation space is arranged on the inflatable fixed line air cushion, and an inflation valve is arranged on the inflation tube; the inflatable fixed line air cushion is made of elastic silica gel or elastic rubber materials.
Preferably, the walking guide device comprises a strip-shaped guide box body, a side plate of the strip-shaped guide box body, which faces one side of the first threading plate and one side of the second threading plate, is a chute side plate, a linear guide chute is formed in the chute side plate, and a guide rack is arranged on the inner wall of the side plate, which is opposite to the chute side plate, on one side;
the first walking device and the second walking device respectively comprise a group of walking functional bodies, each walking functional body comprises a walking bracket and a hub motor, the hub motors are installed at the inner ends of the walking brackets, and the inner ends of the walking brackets and the hub motors are installed in the strip-shaped guide boxes; the outer end of the walking bracket penetrates through the linear guide chute of the strip-shaped guide box body and then is fixedly provided with a first threading plate or a second threading plate; a driving gear is sleeved outside the hub motor, and the driving gear is meshed with the guide rack;
a first abutting support and a second abutting support are respectively arranged on the front side and the rear side of the walking support, and are respectively symmetrically arranged along two sides of the linear guide sliding groove; a first auxiliary travelling wheel and a second auxiliary travelling wheel are respectively installed at two ends of the first tight supporting bracket through a first tight supporting spring rod and a second tight supporting spring rod, a third auxiliary travelling wheel and a fourth auxiliary travelling wheel are respectively installed at two ends of the second tight supporting bracket through a third tight supporting spring rod and a fourth tight supporting spring rod, and the first auxiliary travelling wheel, the second auxiliary travelling wheel, the third auxiliary travelling wheel and the fourth auxiliary travelling wheel are respectively symmetrically arranged along two sides of the linear guide sliding groove; first supplementary walking wheel, the supplementary walking wheel of second, the supplementary walking wheel of third and the supplementary walking wheel of fourth can follow the spout curb plate inner wall of straight line direction spout both sides along with drive gear synchronous motion, and meanwhile first supplementary walking wheel, the supplementary walking wheel of second, the supplementary walking wheel of third and the supplementary walking wheel of fourth make drive gear and guide rack closely mesh the transmission.
Preferably, the overturning and positioning device comprises an overturning and positioning table and an arc-shaped guide toothed rail, a rotating shaft base and an overturning driving motor are arranged on the overturning and positioning table, the lower end of a supporting arm is hinged to the rotating shaft base through a rotating shaft, and the upper end of the supporting arm is connected with the lower end of a strip-shaped guide box body for fixing the walking guide device; one end of the circular arc-shaped guide toothed rail is connected with the side wall of the fixed strip-shaped guide box body, the other end of the circular arc-shaped guide toothed rail is fixed between the two clamping guide wheels, and the two clamping guide wheels are arranged on the overturning positioning table; an arc-shaped tooth socket is arranged on the inner arc surface of the arc-shaped guide tooth rail; a motor shaft of the turnover driving motor is provided with a turnover driving gear, and the turnover driving gear is meshed with the arc-shaped tooth socket of the arc-shaped guide tooth rail;
when the overturning driving motor is started to rotate forwards to the upper limit position, the overturning driving gear can be meshed to drive the arc-shaped guide rack to move, and then the strip-shaped guide box body and the supporting arm are driven to rotate to be in a vertical state around the rotating shaft on the rotating shaft base; when the overturning driving motor is started to rotate reversely to the lower limit, the overturning driving gear can be meshed to drive the circular arc-shaped guide rack to move, and then the strip-shaped guide box body and the supporting arm are driven to rotate to the horizontal transverse state around the rotating shaft on the rotating shaft base.
Preferably, the optical fiber support plate comprises a grid-shaped framework, a plurality of threading pipes are arranged on the grid-shaped framework, and the threading pipes are the same as the threading holes in the first threading plate and the second threading plate in number and positions and are in one-to-one correspondence with the threading holes in the first threading plate and the second threading plate;
the quantity of optic fibre backup pad is more than one, and the optic fibre backup pad sets up between first threading board and second threading board, and between first threading board, optic fibre backup pad and the second threading board through the distance stay wire interconnect that sets up at four apex angle bonding.
Preferably, the wire guiding device is fixed above the threading device;
the wire guiding device comprises a wire winding and unwinding driving motor, a wire winding drum, a bearing support and a wire cutting device, wherein the wire winding and unwinding driving motor and the bearing support are symmetrically arranged at two ends of the wire winding drum; the lower end of the bearing support is provided with a reversed U-shaped rope saw supporting arm through a cutting electric roller, the mounting end of the rope saw supporting arm is provided with a rope saw driving motor, a motor shaft of the rope saw driving motor is provided with a rope saw driving wheel, the extending end of the rope saw supporting arm is provided with a rope saw driven wheel, and rope saw blades are sleeved on the rope saw driving wheel and the rope saw driven wheel; the cutting electric roller can drive the rope saw supporting arm to rotate around the mounting end, and meanwhile, the rope saw driving motor is started, so that the rope saw driving wheel drives the rope saw blade to rotate around the rope saw driving wheel and the rope saw driven wheel, and then the light guide fiber is cut;
the wire device still includes lift hold-down mechanism, lift hold-down mechanism compresses tightly the lift cylinder including compressing tightly lift cylinder and crowded tight pressure pad, and the installation compresses tightly the lift cylinder in the top of winding reel, and the telescopic shaft that compresses tightly the lift cylinder just installs crowded tight pressure pad at the overhanging end of telescopic shaft towards the winding reel, crowded tight pressure pad has rubber or silica gel material to make.
Compared with the prior art, the invention has the beneficial effects that:
1. in the RPC-SCC ratio adopted by the prior art, silica fume, quartz stone powder and quartz sand are used as the raw materials for the ratio, so that the price is higher, the locality is not strong, the dosage of cement is high, and the water-cement ratio is lower, so that the unhydrated cement in the ratio system has more components and higher hydration heat; meanwhile, the adopted heat curing mode does not accord with the concept of green energy conservation. The reactive powder concrete is developed from the idea of energy conservation and emission reduction, raw materials of RPC-SCC are replaced and the proportion of the raw materials is optimized, and the proportion of the reactive powder concrete is optimized by applying the design concept of low water-cement ratio and close packing of the reactive powder concrete.
The method comprises the steps of replacing quartz sand in RPC-SCC with river sand in the range of (0.15-1.18) mm, searching for the optimal mixing proportion of fine sand (0.15-0.3) mm, medium sand (0.3-0.6) mm and coarse sand (0.6-1.18) mm to be 0.18 by utilizing the tight packing theory, and performing the mixing design by adopting an absolute volume method to find the optimal V Glue :V Voids And =1.42, sand-hpc was prepared.
Sequentially replacing quartz powder and silica fume in the sand-hpc by limestone powder and metakaolin in an isovolumetric replacement mode to prepare the Lsp-hpc and the MK-hpc; compared with RPC-SCC and sand-hpc, the fluidity of the ratio can be increased and the ratio structure is compact after limestone powder is added, the larger expansion slump and the higher bending strength in the early period are shown, but the later period ratio strength is lower than that of other ratio groups, the problem of strength reduction caused by limestone powder can be compensated after metakaolin is added, and the fluidity of the ratio is also reduced by metakaolin.
Thirdly, part of cement in MK-hpc is replaced by doping fly ash and mineral powder, and the proportion of the cement system is finally selected as cement according to the self-compaction index and the proportioning strength index: fly ash: mineral powder: limestone powder: metakaolin = 0.4088.
The Quaternary complex admixture is prepared according to the Quaternary admixture proportion Quaternary-7, the cement admixture is only 40%, no expensive admixtures such as silica fume and the like are used, the extension degree is 660mm, the standard curing strength of 28d is 106.9MPa, and the synergistic effect of the multi-element active admixtures endows the Quaternary complex admixture to keep higher fluidity and higher strength under the condition of low water-to-cement ratio.
The fluidity and the compressive strength detection performance of the concrete casting prepared by the method are shown in the following table:
2. the threading plate of the second embodiment of the invention adopts a split structure and is suitable for the preparation operation of small-size conduit concrete test blocks. When threading light guide fiber, the staff need not to make light guide fiber pass the through wires hole of each threading board in narrow and small space one by one, but place the back that targets in place along front side insertion groove and rear side insertion groove with the bottommost components of a whole that can function independently of each threading board earlier, lay each light guide fiber of bottommost in each threading hole, then place the threading board components of a whole that can function independently of the last second piece, two piece upper and lower threading board components of a whole that can function independently enclose the light guide fiber of placing before synthetic complete through wires hole lock centre gripping, so on and so on, can accomplish each layer light guide fiber's location and place, labour saving and time saving and location accuracy.
3. According to the invention, through designing the optical fiber threading equipment, the distance between the threading plates can be automatically pulled open and fixed, and through the least threading operation, the efficient preparation operation of large-size light guide concrete is realized, the labor intensity is reduced, and the operation efficiency is improved.
4. The optical fiber support plate can be made of the same material as the light guide fibers, and can assist in supporting the light guide fibers with large span when preparing a large-size or large-span light guide concrete sample, so that the change of the distance between the fibers and the influence on the light guide performance caused by the impact displacement of each light guide fiber during pouring can be prevented. In addition, act as go-between through setting up flexible distance, the distance is acted as go-between and is acted as go-between for high strength steel wire or nylon rope, and it can be when first threading board and second threading board alternate segregation, pull open each fiber support board simultaneously automatically and make and keep reasonable fixed distance between each fiber support board, need not manual the group and opens or fix a position, labour saving and time saving and guarantee the shaping quality.
Drawings
FIG. 1 is a schematic structural diagram of a forming box according to a second embodiment of the present invention;
FIG. 2 is a schematic view of a fixing structure of the split type threading plate in the front side insertion groove and the rear side insertion groove;
fig. 3 is a schematic structural diagram (threading state) of the optical fiber threading device according to the third embodiment;
FIG. 4 is an enlarged view of the portion A of FIG. 3;
fig. 5 is a schematic structural diagram (in a casting state) of the optical fiber conduit device according to the third embodiment;
FIG. 6 is a schematic view of a first stringing plate;
FIG. 7 is a top view of FIG. 6;
FIG. 8 is a schematic structural view of the inflatable wire-fixing air cushion;
FIG. 9 is a schematic structural view of a fiber support plate;
FIG. 10 is a schematic view of the position structure of the first threading plate, the optical fiber support plate and the second threading plate;
fig. 11 is a schematic view of the internal structure of the molded box after casting (the dotted line in the figure is the position of the cutting line).
In the figure: 1. a left side plate; 2. a light guide fiber; 3. a rear side plate; 4. threading holes; 5. a rear side insertion groove; 6. a threading plate; 7. a right side plate; 8. a front side insertion groove; 9. a front side plate; 10. a bearing support; 11. a rope saw drive wheel; 12. a rope saw driven wheel; 13. a rope saw support arm; 14. a rope saw blade; 15. a first threading plate; 16. an optical fiber support plate; 17. a second threading plate; 18. an inflatable fixed line air cushion; 20. A linear guide chute; 21. forming a box body; 22. a rotating shaft; 23. turning over the positioning table; 24. clamping a guide wheel; 25. a circular arc-shaped guide rack; 26. turning over the driving gear; 27. turning over a driving motor; 28. a support arm; 29. a guide rack; 30. a second traveling device; 31. a strip-shaped guide box body; 32. a first traveling device; 33. a take-up and pay-off line driving motor; 34. a winding drum; 35. pressing the pressing pad tightly; 36. a compression lifting cylinder; 37. a middle shaft; 38. a first auxiliary road wheel; 39. the first resisting spring support rod; 40. a drive gear; 41. a hub motor; 42. a first abutting bracket; 43. the second abutting spring supporting rod; 44. a second auxiliary road wheel; 45. a walking bracket; 46. a wire saw drive motor; 47. cutting the motorized pulley; 48. a rotating shaft base; 49. a flexible bushing; 50. fixing a wire through hole; 51. an inflation tube; 52. an inflation valve; 53. a threading tube; 54. a lattice-shaped skeleton; 55. and (5) spacing and pulling wires.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The invention provides a technical scheme that: a preparation process of optical fiber light guide concrete comprises the following steps:
A. arranging and pre-arranging light guide fibers in the forming box body by using optical fiber penetrating and guiding equipment;
B. preparing high-strength fine concrete castable;
C. pouring high-strength fine concrete castable into a forming box body;
D. removing the mold after pouring and molding for 1 day, and performing standard maintenance for 28 days at the maintenance temperature of 20 +/-2 ℃ and the relative humidity of more than 95 percent; and cutting and forming after the maintenance is finished, and performing standard maintenance.
The preparation process of the high-strength fine concrete castable comprises the following steps:
B1. preparing ingredients: the high-strength fine concrete castable comprises the following material components in parts by mass:
350-410 parts of cement, preferably 398 parts;
30-50 parts of fly ash, preferably 31 parts;
160-220 parts of mineral powder, preferably 184 parts;
127-210 parts of limestone powder, preferably 191 parts;
146-195 parts of metakaolin, preferably 171;
13.8-23.9 parts of polycarboxylic acid water reducing agent, preferably 19.2 parts;
river sand 1231-1369 parts, preferably 1251;
117-195 parts of reinforcing fibers, preferably 156 parts;
138.2 to 217 parts of water, preferably 195;
wherein the reinforcing fiber is steel fiber or imitation steel fiber or PE fiber.
B2. Stirring: the feeding sequence is river sand, cement, fly ash, mineral powder, limestone powder and high-activity metakaolin, the materials are firstly dry-mixed for 5min, then added with water and polycarboxylic acid water reducing agent and stirred for 15min, finally added with reinforcing fiber and uniformly mixed.
The cementing material comprises cement, fly ash, mineral powder, metakaolin and limestone powder, and the cement comprises the following components in percentage by mass: fly ash: mineral powder: limestone powder: metakaolin = 0.4088; the mass ratio of the water to the cementing material is 0.17-0.20.
The river sand is prepared according to the fine sand size fraction: 0.15-0.3mm, medium sand fraction: 0.3-0.6mm, coarse sand fraction: and three size fractions of 0.6-1.18mm are divided, wherein the fine sand, the medium sand and the coarse sand are blended according to the mass ratio of 0.18.
The concrete proportion of the prepared concrete casting material is as follows:
TABLE 1
| Composition (A) | Mixing ratio one | Mixing ratio of two | Proportioning ratio three |
| Cement | 350 parts of | 410 portions of | 398 |
| Fly ash | |||
| 30 portions of | 50 portions of | 40 portions of | |
| Mineral powder | 160 portions of | 220 portions of | 184 parts of |
| Limestone powder | 127 portions of | 210 portions of | 191 parts of |
| Metakaolin clay | 146 portions of | 195 parts | 171 parts by weight |
| Polycarboxylic acid water reducing agent | 13.8 parts of | 23.9 parts of | 19.2 parts of |
| River sand | 1231 part | 1369 parts of | 1251 part(s) |
| Reinforcing fiber | 117 portions of | 195 parts | 156 parts of |
| Water (W) | 138.2 parts | 217 part | 195 parts |
The detection performance of each proportion is as follows:
TABLE 2
| Serial number | Mixing ratio one | Mixing ratio of two | Proportioning ratio three |
| Compressive strength/MPa | 102.7 | 115.9 | 107.1 |
| Extension/mm | 500 | 630 | 590 |
| Resistance to chloride ion permeability for 6h electric flux/C | 382 | 336 | 309 |
| 3d self-shrinkage/10 -6 | 362 | 412 | 271 |
| 150 times dry and wet cycle of sulfate resistance, coefficient of resistance to erosion of compressive strength% | 78.6 | 75.6 | 80.3 |
| Ultimate tensile strength/MPa | 8.21 | 8.29 | 8.33 |
Example two
As shown in fig. 1 and 2, the forming box body comprises a bottom plate, a front side plate, a rear side plate, a left side plate and a right side plate, wherein the front side plate, the rear side plate, the left side plate and the right side plate are detachably mounted and fixed on the front side, the rear side, the left side and the right side of the bottom plate respectively.
At least two groups of threading plates are arranged in the forming box body, and a plurality of threading holes are formed in each threading plate; the threading holes are arranged on the threading plate in a square matrix type with n rows and m columns; the light guide fiber transversely passes through the threading holes on each threading plate.
The front side plate and the rear side plate are respectively and longitudinally provided with a front side insertion groove and a rear side insertion groove which are the same in number with the threading plates, and two side vertical edges of each threading plate are respectively inserted and fixed in the front side insertion groove and the rear side insertion groove; the threading plates are designed in a split mode, and the dividing line between the split bodies of every two adjacent threading plates is a straight line where the central point of each row of threading holes is connected.
The threading board of this embodiment adopts split type structure, is applicable to the preparation operation of small-size pipe concrete test block. When threading light fiber, the staff need not to make light fiber pass the through wires hole of each threading board piece by piece in narrow and small space, but place the back that targets in place along front side inserting groove and rear side inserting groove with the bottommost components of a whole that can function independently of each threading board earlier, lay each light fiber of bottommost in each threading hole, then place the threading board components of a whole that can function independently of the penultimate degree, the light fiber of placing before the synthetic complete through wires hole lock centre gripping is enclosed to both sides threading board components of a whole that can function independently, so on and so on, can accomplish each layer light fiber's location and place. Pouring concrete pouring materials into the forming box body, removing the mould after forming for 1 day, and cutting and forming after standard curing for 28 days.
The rest of the technical contents and implementation manners of this embodiment are the same as those of the first embodiment, and are not described again.
EXAMPLE III
As shown in fig. 3, 4 and 5, the optical fiber threading device according to the present invention includes a threading device, a threading device and a turning positioning device, wherein the threading device is disposed above the threading device, and the threading device is fixed on the turning positioning device.
The threading device comprises a first threading plate, a second threading plate, a first walking device, a second walking device and a walking guide device, wherein the first threading plate and the second threading plate are respectively connected with the first walking device and the second walking device in a detachable mode, and the first walking device and the second walking device can move linearly along the walking guide device.
As shown in fig. 6 and 7, all set up a plurality of through wires hole on first through wires board and the second through wires board, set up flexible bush in the through wires hole, flexible bush can increase through wires hole and optical fiber's frictional force, prevents that optical fiber from taking place to slide in the transportation.
As shown in fig. 3 and 8, an inflatable thread fixing air cushion is arranged on one side of the second threading plate, which is far away from the first threading plate; the inflatable thread fixing air cushion is provided with thread fixing through holes, and the number and the positions of the thread fixing through holes are the same as those of the thread holes in the second threading plate and correspond to those of the thread holes in the second threading plate one by one; one side of the inflatable fixed line air cushion is attached and fixed on the second threading plate, an inflation tube communicated with the internal inflation space is arranged on the inflatable fixed line air cushion, and an inflation valve is arranged on the inflation tube; the inflatable fixed line air cushion is made of elastic silica gel or elastic rubber materials.
The walking guide device comprises a strip-shaped guide box body, a side plate of the strip-shaped guide box body, facing one side of the first threading plate and one side of the second threading plate, is a chute side plate, a straight line guide chute is formed in the chute side plate, and a guide rack is arranged on the inner wall of the side plate on one side, opposite to the chute side plate.
As shown in fig. 4, the first walking device and the second walking device both comprise a group of walking functional bodies, each walking functional body comprises a walking bracket and a hub motor, the hub motor is installed at the inner end of the walking bracket, and the inner end of the walking bracket and the hub motor are installed in the strip-shaped guide box body; the outer end of the walking bracket penetrates through the linear guide chute of the strip-shaped guide box body and then is fixedly provided with a first threading plate or a second threading plate; a driving gear is sleeved outside the hub motor, and the driving gear is meshed with the guide rack.
A first abutting support and a second abutting support are respectively arranged on the front side and the rear side of the walking support, and are respectively symmetrically arranged along two sides of the linear guide sliding groove; a first auxiliary travelling wheel and a second auxiliary travelling wheel are respectively installed at two ends of the first tight supporting bracket through a first tight supporting spring rod and a second tight supporting spring rod, a third auxiliary travelling wheel and a fourth auxiliary travelling wheel are respectively installed at two ends of the second tight supporting bracket through a third tight supporting spring rod and a fourth tight supporting spring rod, and the first auxiliary travelling wheel, the second auxiliary travelling wheel, the third auxiliary travelling wheel and the fourth auxiliary travelling wheel are respectively symmetrically arranged along two sides of the linear guide sliding groove; first supplementary walking wheel, the supplementary walking wheel of second, the supplementary walking wheel of third and the supplementary walking wheel of fourth can follow the spout curb plate inner wall of straight line direction spout both sides along with drive gear synchronous motion, and meanwhile first supplementary walking wheel, the supplementary walking wheel of second, the supplementary walking wheel of third and the supplementary walking wheel of fourth make drive gear and guide rack closely mesh the transmission.
As shown in fig. 3 and 5, the turning positioning device comprises a turning positioning table and a circular arc-shaped guide rack, a rotating shaft base and a turning driving motor are arranged on the turning positioning table, the lower end of a supporting arm is hinged on the rotating shaft base through a rotating shaft, and the upper end of the supporting arm is connected with the lower end of a strip-shaped guide box body for fixing the walking guiding device; one end of the arc-shaped guide rack is connected with the side wall of the fixed strip-shaped guide box body, the other end of the arc-shaped guide rack is fixed between the two clamping guide wheels, and the two clamping guide wheels are arranged on the overturning positioning table; an arc-shaped tooth socket is arranged on the inner arc surface of the arc-shaped guide tooth rail; and a motor shaft of the overturning driving motor is provided with an overturning driving gear, and the overturning driving gear is meshed with the arc-shaped tooth grooves of the arc-shaped guide tooth rail.
When the overturning driving motor is started to rotate forwards to the upper limit position, the overturning driving gear can be meshed to drive the arc-shaped guide rack to move, and then the strip-shaped guide box body and the supporting arm are driven to rotate to be in a vertical state around the rotating shaft on the rotating shaft base; when the starting turnover driving motor rotates reversely to the lower limit, the turnover driving gear can be meshed with the arc-shaped guide toothed rail to move, and then the strip-shaped guide box body and the supporting arm are driven to rotate to the horizontal transverse state around the rotating shaft on the rotating shaft base.
The wire guiding device is fixed above the threading device; the wire guiding device comprises a wire winding and unwinding driving motor, a wire winding drum, a bearing support and a wire cutting device, wherein the wire winding and unwinding driving motor and the bearing support are symmetrically arranged at two ends of the wire winding drum; the lower end of the bearing support is provided with a reversed U-shaped rope saw supporting arm through a cutting electric roller, the mounting end of the rope saw supporting arm is provided with a rope saw driving motor, a motor shaft of the rope saw driving motor is provided with a rope saw driving wheel, the extending end of the rope saw supporting arm is provided with a rope saw driven wheel, and rope saw blades are sleeved on the rope saw driving wheel and the rope saw driven wheel; the cutting electric roller can drive the rope saw supporting arm to rotate around the mounting end, and meanwhile, the rope saw driving motor is started, so that the rope saw driving wheel drives the rope saw blade to rotate around the rope saw driving wheel and the rope saw driven wheel, and then the light guide fiber is cut;
the wire device still includes lift hold-down mechanism, lift hold-down mechanism compresses tightly the lift cylinder including compressing tightly lift cylinder and crowded tight pressure pad, and the installation compresses tightly the lift cylinder in the top of winding reel, and the telescopic shaft that compresses tightly the lift cylinder just installs crowded tight pressure pad at the overhanging end of telescopic shaft towards the winding reel, crowded tight pressure pad has rubber or silica gel material to make.
The working process of the embodiment is as follows:
and detaching the front side plate, the rear side plate, the left side plate and the right side plate of the formed box body. As shown in fig. 3, the strip-shaped guiding box body and the supporting arm are adjusted to rotate around the rotating shaft on the rotating shaft base to a vertical initial state; the first walking device and the second walking device are driven to drive the first threading plate and the second threading plate to be located on the top of the strip-shaped guide box body and to be close to the winding drum of the wire guiding device.
In this embodiment, a plurality of winding drums can be provided, and each winding drum is matched with and provided with a separate winding and unwinding drive motor to independently control the winding and unwinding operation. The compaction pressure pad is lifted by the compaction lifting cylinder, so that the compaction pressure pad is separated from the winding drum. The wire winding and unwinding driving motors are sequentially started from front to back to enable the wire winding and unwinding driving motors to rotate in the forward direction, then the driving wire winding drums corresponding to the driving wire winding drums are driven to release a plurality of groups of light guide fibers, the workers sequentially pass through the inflatable wire fixing air cushions below the first threading plate, the second threading plate and the second threading plate, and the first threading plate and the second threading plate are close to each other at the moment, so that each light guide fiber only needs to be threaded and guided once. After the light guide fibers are led, the inflatable fixed line air cushion is inflated through the inflation valve and the inflation tube to expand the cushion body, and meanwhile, the hole diameter of the fixed line through hole is shrunk and the insertion ends of the light guide fibers are fastened, so that the end parts of the light guide fibers are clamped and positioned.
And the second walking device drives the second threading plate and the inflatable thread fixing air cushion to move downwards until the distance between the first threading plate and the second threading plate reaches a preset distance. The turning driving motor is started to reversely rotate to the lower limit, and meanwhile, the turning driving gear can be meshed to drive the arc-shaped guide toothed rail to move, and then the strip-shaped guide box body and the supporting arm are driven to rotate to the horizontal transverse state around the rotating shaft on the rotating shaft base. At the moment, the front side plate, the rear side plate, the left side plate and the right side plate are arranged on the bottom plate to form a forming box body in a surrounding mode, and the first threading plate and the second threading plate drive the light guide fibers to be located in the forming box body. In this embodiment, the first threading plate and the second threading plate are fixed on the first running gear and the second running gear in a pin joint mode, the first threading plate and the second threading plate are separated from the first running gear and the second running gear after the bolt is pulled out, and the strip-shaped guide box body and the support arm are adjusted again to rotate around the rotating shaft on the rotating shaft base to a vertical initial state.
As shown in fig. 11, the prefabricated casting material is poured between the first threading board and the second threading board of the forming box body, after the forming and curing are completed, the side boards of the forming box body are removed (for the convenience of board removing operation, a release agent can be coated on the side boards and the bottom board before the pouring), then the concrete block is cut according to the dotted line part of fig. 11, and the first threading board and the second threading board are taken down.
Example four
As shown in fig. 9, 10 and 11, in this embodiment, the optical fiber support plate further includes a grid-shaped framework, a plurality of threading pipes are arranged on the grid-shaped framework, and the threading pipes are in the same number and the same position as the threading holes on the first threading plate and the second threading plate, and are in one-to-one correspondence with the threading holes on the first threading plate and the second threading plate.
The quantity of optic fibre backup pad is more than one, and the optic fibre backup pad sets up between first threading board and second threading board, and between first threading board, optic fibre backup pad and the second threading board through the distance stay wire interconnect that sets up at four apex angle bonding.
The optical fiber support plate is made of the same material as the optical fiber, so that the large-span optical fiber can be supported when a large-size or large-span optical concrete sample is prepared, and the change of the distance between the optical fibers and the influence on the optical guide performance caused by the impact displacement of each optical fiber during pouring can be prevented. In addition, through setting up flexible distance and acting as go-between, the distance is acted as go-between and is acted as go-between for high strength steel wire or nylon rope, and it can be when first threading board and second threading board alternate segregation, pulls open each optic fibre backup pad simultaneously automatically and makes and keep reasonable fixed distance between each optic fibre backup pad, need not manual the opening or location, labour saving and time saving just guarantees the shaping quality.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. An optical fiber threading device, comprising: the wire guiding device is arranged above the threading device, and the threading device is fixed on the overturning positioning device;
the threading device comprises a first threading plate, a second threading plate, a first walking device, a second walking device and a walking guide device, wherein the first threading plate and the second threading plate are respectively connected with the first walking device and the second walking device in a detachable mode, and the first walking device and the second walking device can move linearly along the walking guide device;
a plurality of threading holes are formed in the first threading plate and the second threading plate; an inflatable thread fixing air cushion is arranged on one side, away from the first threading plate, of the second threading plate; the inflatable thread fixing air cushion is provided with thread fixing through holes, and the number and the positions of the thread fixing through holes are the same as those of the thread holes in the second threading plate and correspond to those of the thread holes in the second threading plate one by one; one side of the inflatable fixed line air cushion is attached and fixed on the second threading plate, an inflation tube communicated with the internal inflation space is arranged on the inflatable fixed line air cushion, and an inflation valve is arranged on the inflation tube; the inflatable fixed line air cushion is made of elastic silica gel or elastic rubber material;
the walking guide device comprises a strip-shaped guide box body, a side plate of the strip-shaped guide box body, which faces one side of the first threading plate and one side of the second threading plate, is a chute side plate, a linear guide chute is formed in the chute side plate, and a guide rack is arranged on the inner wall of the side plate on one side opposite to the chute side plate;
the first walking device and the second walking device respectively comprise a group of walking functional bodies, each walking functional body comprises a walking bracket and a hub motor, the hub motor is installed at the inner end of the walking bracket, and the inner end of the walking bracket and the hub motor are installed in the strip-shaped guide box body; the outer end of the walking bracket penetrates through the linear guide chute of the strip-shaped guide box body and then is fixedly provided with a first threading plate or a second threading plate; a driving gear is sleeved outside the hub motor, and the driving gear is meshed with the guide rack;
a first abutting support and a second abutting support are respectively arranged on the front side and the rear side of the walking support, and are respectively symmetrically arranged along two sides of the linear guide sliding groove; a first auxiliary travelling wheel and a second auxiliary travelling wheel are respectively installed at two ends of the first tight supporting bracket through a first tight supporting spring rod and a second tight supporting spring rod, a third auxiliary travelling wheel and a fourth auxiliary travelling wheel are respectively installed at two ends of the second tight supporting bracket through a third tight supporting spring rod and a fourth tight supporting spring rod, and the first auxiliary travelling wheel, the second auxiliary travelling wheel, the third auxiliary travelling wheel and the fourth auxiliary travelling wheel are respectively symmetrically arranged along two sides of the linear guide sliding groove; first supplementary walking wheel, the supplementary walking wheel of second, the supplementary walking wheel of third and the supplementary walking wheel of fourth can follow the spout curb plate inner wall of straight line direction spout both sides along with drive gear synchronous motion, and meanwhile first supplementary walking wheel, the supplementary walking wheel of second, the supplementary walking wheel of third and the supplementary walking wheel of fourth make drive gear and guide rack closely mesh the transmission.
2. The fiber routing device of claim 1, wherein: the overturning positioning device comprises an overturning positioning table and an arc-shaped guide toothed rail, a rotating shaft base and an overturning driving motor are arranged on the overturning positioning table, the lower end of a supporting arm is hinged to the rotating shaft base through a rotating shaft, and the upper end of the supporting arm is connected with the lower end of a strip-shaped guide box body for fixing the walking guide device; one end of the arc-shaped guide rack is connected with the side wall of the fixed strip-shaped guide box body, the other end of the arc-shaped guide rack is fixed between the two clamping guide wheels, and the two clamping guide wheels are arranged on the overturning positioning table; an arc-shaped tooth socket is arranged on the inner arc surface of the arc-shaped guide toothed rail; a motor shaft of the turnover driving motor is provided with a turnover driving gear, and the turnover driving gear is meshed with the arc-shaped tooth socket of the arc-shaped guide tooth rail;
when the overturning driving motor is started to rotate forwards to the upper limit position, the overturning driving gear can be meshed to drive the arc-shaped guide rack to move, and then the strip-shaped guide box body and the supporting arm are driven to rotate to be in a vertical state around the rotating shaft on the rotating shaft base; when the starting turnover driving motor rotates reversely to the lower limit, the turnover driving gear can be meshed with the arc-shaped guide toothed rail to move, and then the strip-shaped guide box body and the supporting arm are driven to rotate to the horizontal transverse state around the rotating shaft on the rotating shaft base.
3. The fiber routing device of claim 2, wherein: the optical fiber support plate comprises a grid-shaped framework, a plurality of threading pipes are arranged on the grid-shaped framework, and the threading pipes are the same in number and position as threading holes in the first threading plate and the second threading plate and are in one-to-one correspondence with the threading holes in the first threading plate and the second threading plate;
the quantity of optic fibre backup pad is more than one, and the optic fibre backup pad sets up between first threading board and second threading board, and between first threading board, optic fibre backup pad and the second threading board through the distance stay wire interconnect that sets up at four apex angle bonding.
4. The fiber routing device of claim 3, wherein: the wire guiding device is fixed above the threading device;
the wire guiding device comprises a wire winding and unwinding driving motor, a wire winding drum, a bearing support and a wire cutting device, wherein the wire winding and unwinding driving motor and the bearing support are symmetrically arranged at two ends of the wire winding drum; the lower end of the bearing support is provided with a reversed U-shaped rope saw supporting arm through a cutting electric roller, the mounting end of the rope saw supporting arm is provided with a rope saw driving motor, a motor shaft of the rope saw driving motor is provided with a rope saw driving wheel, the extending end of the rope saw supporting arm is provided with a rope saw driven wheel, and rope saw blades are sleeved on the rope saw driving wheel and the rope saw driven wheel; the cutting electric roller can drive the rope saw supporting arm to rotate around the mounting end, and meanwhile, the rope saw driving motor is started, so that the rope saw driving wheel drives the rope saw blade to rotate around the rope saw driving wheel and the rope saw driven wheel, and then the light guide fiber is cut;
the wire device still includes lift hold-down mechanism, lift hold-down mechanism compresses tightly the lift cylinder including compressing tightly lift cylinder and crowded tight pressure pad, and the installation compresses tightly the lift cylinder in the top of winding reel, and the telescopic shaft that compresses tightly the lift cylinder just installs crowded tight pressure pad at the overhanging end of telescopic shaft towards the winding reel, crowded tight pressure pad has rubber or silica gel material to make.
5. A process for preparing optical fiber light guide concrete by using the optical fiber threading device according to any one of claims 1 to 4, which comprises the following steps:
A. arranging and pre-arranging light guide fibers in the forming box body by using optical fiber penetrating and guiding equipment;
B. preparing high-strength fine concrete castable;
C. pouring high-strength fine concrete castable into a forming box body;
D. removing the mold after pouring and molding for 1 day, and performing standard maintenance for 28 days at the maintenance temperature of 20 +/-2 ℃ and the relative humidity of more than 95 percent; cutting and forming after maintenance is finished;
the forming box body comprises a bottom plate, a front side plate, a rear side plate, a left side plate and a right side plate, wherein the front side plate, the rear side plate, the left side plate and the right side plate are detachably mounted and fixed on the front side, the rear side, the left side and the right side of the bottom plate respectively;
at least two groups of threading plates are arranged in the forming box body, and a plurality of threading holes are formed in each threading plate; the threading holes are arranged on the threading plate in a square matrix with the number of rows n and the number of columns m; the light guide fiber transversely passes through the threading holes on the threading plates.
6. The preparation process of the optical fiber light guide concrete according to claim 5, wherein the preparation process comprises the following steps: the front side plate and the rear side plate are respectively and longitudinally provided with a front side insertion groove and a rear side insertion groove which are the same in number with the threading plates, and two side vertical edges of each threading plate are respectively inserted and fixed in the front side insertion groove and the rear side insertion groove; the threading plates are designed in a split mode, and the dividing lines between the split bodies of every two adjacent threading plates are straight lines where the central points of the threading holes in each row are connected.
7. The preparation process of the optical fiber light guide concrete according to claim 6, wherein the preparation process comprises the following steps: the preparation process of the high-strength fine concrete castable comprises the following steps:
B1. preparing ingredients: the high-strength fine concrete castable comprises the following material components in parts by mass:
350-410 parts of cement;
30-50 parts of fly ash;
160-220 parts of mineral powder;
127-210 parts of limestone powder;
146-195 parts of metakaolin;
13.8-23.9 parts of a polycarboxylic acid water reducing agent;
1231-1369 parts of river sand;
117-195 parts of reinforcing fiber;
138.2-217 parts of water;
wherein the reinforcing fiber is steel fiber or imitation steel fiber or PE fiber;
B2. stirring: the feeding sequence comprises river sand, cement, fly ash, mineral powder, limestone powder, high-activity metakaolin and reinforcing fibers, and the steps of firstly dry-mixing for 5min, adding water and a polycarboxylic acid water reducing agent, and then stirring for 15min are carried out.
8. The preparation process of the optical fiber light guide concrete according to claim 7, wherein the preparation process comprises the following steps:
the cementing material comprises cement, fly ash, mineral powder, metakaolin and limestone powder, and the cement comprises the following components in percentage by mass: fly ash: mineral powder: limestone powder: metakaolin = 0.4088; the mass ratio of the water to the cementing material is 0.17-0.20.
9. The preparation process of the optical fiber light guide concrete according to claim 8, wherein the preparation process comprises the following steps: the river sand is prepared according to the fine sand size fraction: 0.15-0.3mm, medium sand fraction: 0.3-0.6mm, coarse sand fraction: and three size fractions of 0.6-1.18mm are divided, wherein the fine sand, the medium sand and the coarse sand are blended according to the mass ratio of 0.18.
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